JP2021182925A - Device and method for producing semi finished article intended to form part of smoker commodity - Google Patents

Abstract

To provide a device and a method for producing a semi-finished article which forms a part of a smoker commodity, with high productivity level and high accuracy.SOLUTION: A device comprises: a mandrel 401A which extends along a longitudinal direction axis 402A and stands still; a paper inside strip 7A and an outside strip 8A which are wound around the mandrel in a spiral shape; a driven power drive belt 403A being wound around the outside strip 8A so as to apply rotation around the longitudinal direction axis 402A and motion of parallel movement along an axis in a supply direction, to the strips 7A, 8A; and a cutting station which is provided on a downstream side of the mandrel 401A, for cutting a paper tubular rod 2A. The cutting station has a blade which is provided on a cross section perpendicular to the longitudinal direction axis 402A, for cutting the rod 2A between two-planes, and is along a circular locus around a rotary axis which is inclined to a cutting plane, so that the cutting plane can move parallel, along the longitudinal direction axis 402A.SELECTED DRAWING: Figure 6

Description

The present invention relates to devices and methods for producing semi-finished products intended to form part of a smoker's product.

Tubular elements act on the structure of tobacco, for the purpose of forming or strengthening space, for example to ensure its roundness, in connection with tobacco, or more generally smoker products such as tobacco and cigars. Inserted into a cigarette.

In this regard, a spiral winding machine used to form a tubular rod and then cut into pieces to form a tubular element is described, for example, in WO 2004/106017 (WO2004 / 106017A1), Canadian Patent No. 1. It is known in US Pat. No. 7,93059 (CA793059A), US Pat. No. 10,83088 (GB1083088A), UK Pat. No. 10,83089 (GB1083089A) and US Pat. No. 3,349777 (US3349777A).

However, this technique presents some problems and the prior art solutions are limited in response.

One problem is productivity, that is, the need to have a machine capable of producing a large number of semi-finished products per unit time in terms of production volume.

Another need is to produce high quality, high precision semi-finished products.

Another issue concerns the ease with which the user can operate the machine.

Accordingly, it is an object of the present invention to provide an apparatus and method for producing a semi-finished product intended (fitted) to form a portion of a smoker's product that overcomes the above-mentioned drawbacks of the prior art. And. It will be understood that the semi-finished product forms (is part of) a part of the smoker's product.

More specifically, one object of the invention provides an apparatus and method for producing a semi-finished product intended (fitted) to form a portion of a smoker's product, with a particularly high productivity level. It is to be.

A further object of the present invention is to provide an apparatus and a method for producing a semi-finished product intended (fitted) to form a part of a smoker's product, which is particularly accurate.

A further object of the present invention is to provide a device and a method for producing a semi-finished product intended (fitted) to form part of a smoker's product in order to simplify the user's work. be.

These objects are fully achieved by the apparatus and method of the present invention described in the appended claims.

More specifically, the present invention relates to a device for producing a semi-finished product intended to form a portion of a smoker's product such as a cigarette or a cigar.

The device comprises a mandrel extending along a longitudinal axis. Preferably, the mandrel is stationary, i.e., a non-moving part of the device.

The device comprises at least one inner strip and one outer strip. The inner strip is spirally wrapped around the mandrel. The outer strip is spirally wound around the inner strip so that the inner surface of the outer strip touches the outer surface of the inner strip. In an exemplary embodiment not shown, three or more strips (to increase or enhance thickness) can be wrapped around the mandrel, ie the device is in addition to the inner and outer strips described above. One or more additional strips can be provided.

It should be noted that these strips can be formed of any material suitable for being bonded to the surface without peeling, for example by gluing or pressure joining. For example, the strip can be made of a material such as paper, plastic or metal (eg aluminum), or a multi-layer composite material (eg aluminum on one side and paper on the other). In an exemplary embodiment, different strips can be formed of the same material. However, they can also be made of different materials.

For simplicity, the following description will assume that the strips are made of paper, and in some cases the inner and outer strips will be referred to as "inner paper strips" and "outer paper strips". The scope of the present invention is not limited to paper as the material from which strips can be formed.

When the strip (used for forming the rod) is made of paper, the basis weight of the paper used is preferably 20 to 200 g / sq m, more preferably 35 to 35.
It should be noted that it is 170 g / sq m, and even more preferably 50 to 150 g / sq m.

In an exemplary embodiment, the device also comprises an adhesive unit configured to place the adhesive on at least one of the inner surface of the outer strip and the outer surface of the inner strip.

Alternatively (or in addition to the adhesive unit) the adhesive unit can also be formed of gum paper or other material that can be pressure-bonded (ie, connectable so that it does not come off).

The mandrel has a first end connected to a support element and a second end that is a free end.

The device also comprises a belt. The movement of the belt causes the inner and outer strips to rotate about the longitudinal axis of the mandrel and extend along the longitudinal axis in the feed direction (the extension of the mandrel from one end to the second end of the mandrel itself). The belt is functionally wrapped (spirally) around the outer paper strip for translation (as defined by the travel direction).

The belt touches the outer strip along a contact surface that is spirally arranged with respect to the longitudinal axis of the mandrel. The belt is motor driven.

The roto-translational (helical) movement of the paper strip causes the inner paper strip to rub against the mandrel.

The rotational translational (spiral) movement of the paper strip forms a tubular rod protruding from the mandrel (from the second end of the mandrel). The tubular rod is composed of an inner paper strip and an outer paper strip that are spirally wound and adhered to each other.

The device also comprises a cutting station located downstream of the belt, preferably downstream of the mandrel.

The cutting station is configured to cut a tubular paper rod protruding from the mandrel into pieces to form a semi-finished product. In fact, each piece of rod is semi-finished, as it is generally designed to be cut into smaller pieces before being inserted into a cigarette or other smoker's product.

The cutting station preferably comprises at least one blade (or other cutting element such as a laser beam or beam) capable of intercepting and cutting the rod between two sides. Preferably, the blade is placed on a cut plane perpendicular to the longitudinal axis of the mandrel that coincides with the longitudinal axis of the tubular rod to be cut. Preferably, the blade is mounted on the carrier unit. The carrier unit can move, for example, along a trajectory defined by a closed line contained in the displacement plane. Due to the effect of the displacement of the carrier unit along the trajectory contained in the displacement surface, the displacement surface is tilted with respect to the cut surface so that the cut surface can move along the longitudinal axis. Preferably, the orbit of the carrier unit is a circular orbit around a rotation axis that is inclined with respect to the cut plane (the rotation axis is perpendicular to the displacement plane).

The cutting station can precisely cut tubular rods that move at particularly high speeds (eg 10-720 m / min) to obtain pieces of appropriately reduced length (eg 60-180 mm).

It should be noted that during the displacement of the carrier unit, at least one end point of the blade represents a closed cutting line, preferably within this closed cutting line the cylinder defined by the tubular rod to be cut. Please note that you are.

Preferably, only the inner surface of the outer paper strip adheres. That is, the adhesive unit applies the adhesive to the inner surface of the outer paper strip, and the inner paper strip is fed to the mandrel without the adhesive (or, more generally, without the adhesive).

In an exemplary embodiment, the device comprises a scrape element. The scrape element is configured to interact with the paper strip and position the strip to receive an adhesive (adhesive or other similar substance). The scrape element is located upstream of the bonding unit.

It should be noted that the expressions "upstream side" and "downstream side" used in the present specification refer to the direction of paper movement from the paper storage (different rolls to which paper is supplied) to the cutting station and the ejection station. Keep it.

Preferably, the device comprises a scraping element for each paper strip to which the adhesive is applied. Preferably, the scrape element acts on the inner surface of the outer paper strip, preferably the only surface that receives the adhesive.

In an exemplary embodiment, the device comprises a strain mitigation element. The strain-reducing element is configured to interact with the paper strip and pre-arrange the paper strip to spiral around the mandrel. Preferably, the device comprises a strain mitigation element for each paper strip. Preferably, the device comprises an outer strain reducing element and an inner strain reducing element acting on the outer paper strip and the inner paper strip, respectively.

The motor drive belt (the belt driven by the motor) is preferably hung in a loop around at least the first pulley and the second pulley. In an exemplary embodiment, the first and second pulleys rotate around their respective axes of rotation. In an exemplary embodiment, the drive pulley is perpendicular to the longitudinal axis of the mandrel. It should be noted that, in an exemplary embodiment, the rotation axis of the driven pulley may not be parallel to the rotation axis of the drive pulley.

For example, the longitudinal axis of the mandrel is horizontal, that is, parallel to the plane on which the machine is placed. Preferably, the axis of rotation of the belt moving pulley is also horizontal.

The belt is hung in a loop around the first pulley and the second pulley to form a forward section and a return section. Preferably, the forward and return sections of the belt intersect each other.

One of the two sections of the belt (eg the forward section) is wrapped around the mandrel. Preferably, the belt is wrapped around the mandrel to form a complete spiral winding (preferably one revolution). Preferably, the belt is wrapped around the mandrel at an angle of 30-60 degrees.

The forward section (ie, the bifurcation of the belt wrapped around the mandrel) has a first stretch connecting the first pulley to the mandrel and a second stretch connecting the second pulley to the mandrel. Have. Preferably, the first stretch of the forward section of the belt forms a 90 degree twist in the first direction and the second stretch of the forward section of the belt forms a 90 degree twist in the second direction opposite to the first direction. do.

In an exemplary embodiment, the device comprises a take-out station that is located downstream of the cutting station and is configured to receive and handle pieces of a tubular rod.

Preferably, the take-out station is configured to deliver a piece of rod away from the device along a take-out direction that is lateral (especially perpendicular) to the longitudinal axis (and rod) of the mandrel.

In an exemplary embodiment, the retrieval station comprises a drum that rotates about an axis parallel to the longitudinal axis of the mandrel. The drum has a plurality of housings around it. Preferably, these housings are evenly spaced. Preferably, the width of each of the plurality of housings, measured tangentially to the drum, is smaller in the feeding direction of the tubular rod. This allows the tubular rod piece to be handled quickly and precisely without breakage.

More specifically, the rod pieces are housed in the drum housing and held inside by suction. In this way, the pieces are held in suction housings spaced apart from each other and laterally fed to other machines located downstream of the device forming the rod pieces.

In an exemplary embodiment, the device comprises a heater operating in a space located downstream of the bonding unit and upstream of the cutting station. For example, the device comprises a heating beam in an area of the device having a mandrel.

Details are given below regarding the mode in which the paper strip is wrapped around the mandrel.

Preferably, the inner strips are wrapped around the mandrel at predetermined (first) intervals so that the coals are juxtaposed with each other without overlapping. Preferably, the outer strips are wrapped around the mandrel at (second) predetermined intervals so that each single roll is juxtaposed with each other without overlapping. In one embodiment, the first predetermined interval is equal to the second predetermined interval.

It should be noted that each one-roll portion can also overlap (to a predetermined degree) with each other (in a possible exemplary embodiment not shown). In a possible exemplary embodiment not shown, it is also possible to form a (predetermined) gap (keep the ends apart) between each roll. It also mixes solutions, for example, one of the strips is wound precisely (without overlapping and without gaps) and the other strip is wound loosely (so that there is a gap between each roll). (Wrapping different strips in different ways) is also conceivable. Alternatively, in another example, it is conceivable to stack one layer (eg, the layer formed by the inner strip) and precisely place the other layer on top of it.

Preferably, the inner strip and the outer strip are wound at the same spacing. Preferably, each roll portion of the outer strip is offset longitudinally with respect to each roll portion of the inner strip by a predetermined amount (eg, half its spacing).

Preferably, the device comprises an outer roll of the outer paper web and an inner roll of the inner paper web. Preferably, a larger length of outer paper strip is used in the length of one piece of product formed. Preferably, therefore, the overall length of the outer web is greater than the overall length of the inner web. Preferably, the width of the outer web is greater than the width of the inner web.

The inner roll is used to feed the inner paper strip. The outer roll is also used to feed the outer paper strip.

On the other side of the device of this description, a single tubular rod (“single rod” device) is formed, but two tubular rods (“twin rod” device) or more generally multiple tubular rods simultaneously. It can also be formed.

Depending on the necessary changes, unless otherwise stated, all surfaces described above may be applied to single rods, twin rods and other devices of this type.

By forming two (or more) rods at the same time, the productivity of the device can be further improved.

If the device is configured to form multiple rods simultaneously, the machine comprises a corresponding assembly for each of the plurality of rods. Each corresponding assembly comprises one mandrel, two or more paper strips (at least one inner and outer paper strips), one motor drive belt and one adhesive unit. On the other hand, the cutting (and removal) station can be a common station for all rods (or one station for each rod).

With respect to multi-rod devices, this description typically deals with the example of two rods being formed simultaneously (twin rod machine) (and thus without loss of generality).

When two tubular rods are formed simultaneously, the above-mentioned inner paper strip, outer paper strip, and motor drive belt constituting the first mandrel, the first inner paper strip, the first outer paper strip, and the first motor drive belt, respectively. In addition, the device comprises a second mandrel, a second inner paper strip, a second outer paper strip, and a second motor drive belt.

When the term "mandrel" is used in the present specification, it should be noted that the generically referred to device is a device having one or more mandrels, and the mandrel is substantially the first mandrel. The expression "first mandrel" is used to mean the same element, but indicates that the machine has at least a first mandrel and a second mandrel.

The second inner strip and the second outer strip are wrapped around the second mandrel. The second belt also acts on the second outer strip to form the second tubular rod.

Preferably, the (twin rod) device comprises an outer roll of the outer web and an inner roll of the inner web. Also, the (twin rod) device is preferably configured to longitudinally cut between the inner and outer webs to form the first and second half webs of each corresponding pair. Equipped with two cutting units. The first half-web and the second half-web obtained from the inner web are wound around the first mandrel and the second mandrel, respectively, so as to form the first inner strip and the second inner strip, respectively. The first half-web and the second half-web obtained from the outer web are wound around the first mandrel and the second mandrel, respectively, so as to form the first outer strip and the second outer strip, respectively.

This solution can reduce the cost of the device (including operating costs).

Instead of cutting the web longitudinally, the twin rod device can have a single width roll and four paper supply units (eg, duplicate the configuration described for the single rod device).

Thus, in a twin rod device, the web is twice as wide as the strip (while in a single rod device, the inner web preferably coincides with the inner strip and the outer web coincides with the outer strip).

In an exemplary embodiment of a twin rod machine, the device has first, second and third drawer units and first, first, for each of the inner and outer webs, or for each cutting unit. It is equipped with a second and third adjustment unit (also called "Dundee Roller").

The first drawer unit and the first adjustment unit are located downstream of the cutting unit (inside or outside) and are connected to the first paper strip (corresponding inside or outside).

The second drawer unit and the second adjustment unit are located downstream of the cutting unit (inside or outside) and are connected to a second paper strip (corresponding inside or outside).

The third drawer unit and the third adjustment unit are located upstream of the cutting unit (inside or outside) and are connected to the corresponding web (corresponding inside or outside).

Each drawer unit has its own motor driven supply roller.

Each adjustment unit has its own system of intermovable transmission rollers for increasing or decreasing the path of each corresponding paper strip or web.

This system of (motor driven) drawer units drives the balance of tension at the ends of the three layers of paper associated with a common cutting unit (by using a controlled adjustment unit with the corresponding actuator of the drawer unit). It is designed to keep you in good shape.

More specifically, when the machine is started, the first and second adjustment units are (sufficiently) in different positions so that the second mandrel can be started with a time delay after the first mandrel. It is controlled so that it can be taken.

Preferably, the second mandrel is oriented along a longitudinal axis parallel to the longitudinal axis of the first mandrel.

In an exemplary embodiment, the first inner and first outer paper strips are wrapped around the first mandrel in the first rotational direction, and the second inner and second outer paper strips are around the second mandrel. In addition, it is wound in the second rotation direction opposite to the first rotation direction. In addition, the first and second belts are wound around the corresponding pair of pulleys. Each of the pairs has a corresponding axis of rotation through the corresponding plane. The position planes of the axes of rotation of the two pairs of pulleys preferably intersect (eg, if the inclination of the belt on the mandrel is 45 degrees, they intersect at right angles).

This can reduce the dimensions of the (twin rod) device and allow the user more access to the mandrel area.

It should be noted that in an exemplary embodiment, a guide or a guide configured to guide the strip along the stretch of one of those pathways located upstream of the mandrel and adjacent to the mandrel around which the strips themselves are wound. It should be noted that the device (particularly the paper supply section) has a guide device (not shown in the drawings).

In an exemplary embodiment, the device (particularly the paper feeder) has at least one friction reducer (device) configured to reduce friction between the inside of the inner strip and the mandrel. This friction reducer (not shown in the drawing) acts on the inner surface of the inner strip.

The disclosure also provides a method of producing a semi-finished product intended to form part of a smoker's product.

The method comprises preparing an inner paper strip and spirally winding the inner paper strip around a stationary mandrel extending along a longitudinal axis. It also includes the step of preparing the outer paper strip. The outer strip is functionally spirally wound around the inner paper strip so that the inner surface of the outer strip touches the outer surface of the inner strip.

The method also comprises applying an adhesive to at least one of the inner surface of the outer strip and the outer surface of the inner strip. The term "gluing" is used in a broad sense to mean the application of an adhesive.

Preferably, the adhesive is applied only to the inner surface of the outer strip.

The method is also spirally wrapped around the outer paper strip to provide rotational movement around the longitudinal axis of the mandrel and translational movement along that axis in the supply direction to the inner and outer paper strips. Includes the step of moving the motor drive belt.

As the strips wrapped around the mandrel move in the feed direction, tubular rods are formed (from the inner and outer strips connected to each other) and continuously along the longitudinal axis of the mandrel in the feed direction. Will be supplied. Also, as the strips wrapped around the mandrel move in the feeding direction, the inner and outer strips are supplied by being pulled out of the corresponding inner and outer paper rolls.

The method also comprises cutting a tubular rod fed downstream of the mandrel. Cutting involves the action of a blade (or other cutting element that is substantially flat) oriented at the cutting plane perpendicular to the longitudinal axis (of the mandrel and rod). The blade travels along a trajectory (forming a closed line), preferably along a circular trajectory around a axis of rotation that tilts with respect to the cut surface.

Thus, during the cutting action, the blade and the cutting surface move along the longitudinal axis as the rod feeds and moves. More specifically, when cutting the rod, the blade moves along the longitudinal axis at a speed that includes a translation component in the supply direction. This component is preferably equal to the rod feed rate along the longitudinal axis (with respect to the translation component of the rod speed).

Following the cutting step, a removal step of feeding the tubular rod piece into the longitudinal housing of the rotating drum is performed. These pieces are then fed laterally out of the device with respect to the longitudinal axis of the mandrel and rod.

In an exemplary embodiment, the method comprises forming two (or three or more) tubular paper rods simultaneously.

In this exemplary embodiment, the method comprises preparing a second mandrel, a second inner paper strip, a second outer paper strip, and a second motor drive belt.

It also includes the step of preparing the outer roll of the outer web and the inner roll of the inner web.

The method comprises longitudinally cutting the inner and outer webs to form the first and second half webs of each corresponding pair. The first half web and the second half web obtained from the inner web form the first inner strip and the second inner strip, respectively, and the first half web and the second half web obtained from the outer web are the first. The one outer strip and the second outer strip are formed respectively.

In an exemplary embodiment, for each inner and outer web, a step of pulling out and adjusting the first paper strip (after cutting the corresponding webs) and a step of pulling out and adjusting the second paper strip (after cutting the corresponding webs). After cutting each corresponding web) and before cutting, the process of pulling out and adjusting each corresponding web is included.

Each step of pulling out and adjusting the first paper strip, the second paper strip and the corresponding web is the corresponding first drawer unit, second drawer unit and third drawer unit, and the first adjustment unit, second adjustment. It is done by the unit and the third adjustment unit.

Also, as a function of the detected tensions of the first strip, second strip and web, the first drawer unit, the second drawer unit and the third drawer unit, and the first adjustment unit, the second adjustment unit and the third adjustment unit. And, the process of automatically controlling is included.

With or without one or more mandrels, steps are included (for each of the one or more mandrels) to reduce the distortion of the paper strip (by applying mechanical stress), and the adhesive is applied. A scraping step is included for the strip to be made.

It should be noted that the inner strip and the outer strip are spaced so that their respective one-roll portions are arranged with respect to each other in a predetermined manner (eg, without overlap, ie precisely without gaps, or with predetermined overlap). , Or juxtaposed to leave a predetermined gap in the loose), and note that it is wrapped around the mandrel.

The present disclosure also provides a piece of tubular rod or a portion thereof obtained by further cutting the piece along a cut plane perpendicular to the longitudinal axis of the piece. A piece of tubular rod or a portion thereof forms a cylindrical paper ring that extends about the longitudinal axis. The ring has an outer layer and an inner layer. The outer layer is formed by a single roll of a number of paper strips that are spirally wound along the longitudinal axis (which can also be a fractional number). The inner layer is formed by a single roll of a number (and can be less than 1) of paper strips that are spirally wound along the longitudinal axis. Preferably, the inner and outer layers are formed by the same number of single rolls of each corresponding paper strip. One roll of the outer paper strip is wound at the same intervals as the one roll of the inner paper strip. In an exemplary embodiment, the rolls of the outer paper strip are juxtaposed with each other without gaps or overlap, and the rolls of the inner paper strip are juxtaposed with each other without gaps or overlap (but as described above, others). It can also be the machine setting of).

The length of the inner paper strip is preferably shorter than the outer paper strip. This has the effect of removing the gap. Without this, gaps would be formed in the outer layers of equal width.

The ratio between the width of the inner (or outer) paper strip to the diameter of the tubular element is preferably 1.5 to 2.7, more preferably this ratio is 1.8 to 2.5. Even more preferably, this ratio is 2.1-2.4.

The width of the inner (or outer) paper strip is preferably 4.5 to 24.5 mm, more preferably this width is 5.5 to 22.5 mm, and even more preferably this width is 6. It is 5 to 21.5 mm.

The disclosure also provides cigarettes (or cigars or other similar smoker products) with one or more of the aforementioned paper rings.

This feature and other features will be more apparent from the following description of the preferred embodiments shown by examples, not limited to, in the accompanying drawings below.
Shown is an apparatus for producing a semi-finished product intended to form part of a smoker's product according to the present disclosure. A semi-finished product consisting of rod pieces is shown schematically. A part of the rod of FIG. 2A is shown schematically. FIG. 1 shows the apparatus of FIG. 1 in which a part is cut and the other part is schematically shown. It is a functional diagram of the apparatus of FIG. The details of the apparatus of FIG. 1 are shown. The details of FIG. 5 according to another embodiment of the apparatus of FIG. 1 are shown. The functional diagram of FIG. 4 regarding the modification embodiment of the apparatus of FIG. 6 is shown. It shows the details of the apparatus of FIG. 1, which shows the top view of the cutting station and the taking-out station. It is a side view of the details of FIG. A series of operating states of the take-out station of FIG. 9 are shown. A series of operating states of the take-out station of FIG. 9 are shown. A series of operating states of the take-out station of FIG. 9 are shown.

With reference to the drawings, reference numeral 1 indicates a device for producing a semi-finished product intended to form part of a smoker's product. The device 1 is a spiral winding machine.

Machine 1 is designed to form the pieces 200 of the paper tube that make up the semi-finished product. For this purpose, the device 1 forms a tubular paper rod 2A for obtaining the piece 200 by cutting. Depending on its embodiment, the device forms one tubular rod 2A, or simultaneously forms two or more such rods. When a plurality of rods are formed at the same time, in the present disclosure, the first rod formed at the same time as the (at least) second rod 2B is referred to as a rod 2A.

The device 1 includes a section 3 for supplying paper and a section 4 for forming the rod 2A (or a plurality of rods). The device 1 also includes a section 5 for cutting the rod (or a plurality of rods) to form the piece 200. The device also preferably receives pieces 200 from the cutting station 5 and makes those pieces available to other machines located downstream of device 1, such as machines for forming cigarette filters. It comprises a take-out station 6 for handling or arranging those pieces in the storage of piece 200.

Hereinafter, embodiments of forming one rod will be described first, and then embodiments of forming a plurality of rods (using, but not limited to, two rods as an example) will be described.

The device 1 comprises a (first) mandrel 401A extending along a longitudinal axis 402A. The mandrel is a stationary mandrel 401A, i.e., it does not move relative to a fixed portion of device 1 during operation of device 1.

The device 1 comprises a (first) inner paper strip 7A. The inner strip 7A is functionally spirally wound around the mandrel 401A.

The device 1 comprises a (first) outer paper strip 8A. The outer strip 8A is functionally spirally wound around the inner strip 7A wound around the mandrel 401A. In the mandrel 401A, the inner surface of the outer strip 8A is in contact with the outer surface of the inner strip 7A.

The device 1 includes a (first) belt 403A. Preferably, the belt 403A is driven by a motor. For example, the belt 403A is connected (extended between them) to the first pulley 404A and the second pulley 405A. At least one of the pulleys is motor driven.

The belt 403A is in contact with the outer strip 8A so that the inner strip 7A and the outer strip 8A move relative to the mandrel 401A in response to the movement of the belt. Preferably, the belt 403A acts on the outer strip (8A) to provide rotational movement around the longitudinal axis 402A of the mandrel 401A and translation movement along the axis 402A in the supply direction to the inner strip 7A and the outer strip 8A. do.

Preferably, the belt 403A contacts the outer strip 8A along a contact surface spirally arranged with respect to the longitudinal axis 402A of the mandrel 401A.

In an exemplary embodiment, the first pulley 404A and the second pulley 405A have corresponding corresponding axes of rotation parallel to each other. Preferably, the axis of rotation of the first pulley 404A and the second pulley 405A is inclined (not perpendicular) to the longitudinal axis 402A.

The belt 403A is hung in a loop around the first pulley 404A and the second pulley 405A to form a forward section 406A and a return section 407A. In an exemplary embodiment, the forward section 406A and the return section 407 intersect each other.

The forward section 406A is wound around the mandrel 401A, the first stretch 408A connecting the first pulley 404A and the mandrel 401A, and the second stretch connecting the second pulley 405A and the mandrel 401A. 409A and.

Preferably, the first stretch 408A of the forward section 406A of the belt 403A forms a twist in the first direction. This twist is preferably a 90 degree twist.

Preferably, the second stretch 409A of the forward section 406A of the belt 403A forms a twist in the second direction opposite to the first direction. This twist is also preferably a 90 degree twist.

Preferably, the forward section 406A of the belt 403A is tilted at a predetermined angle with respect to the mandrel 401A. Preferably, this tilt angle is 30-60 degrees.

The belt 403A (particularly the forward section 406A of the belt 403A) has one roll around the mandrel 401A (especially around the outer strip 8A), preferably at least one complete roll, preferably one roll and one roll only. Wrapped around.

In an exemplary embodiment, the first pulley 404A and the second pulley 405A are rotatably coupled to the front support arm 410A. The axes of rotation (preferably parallel) of the first pulley 404A and the second pulley 405A are included in the first position plane. The first position plane is preferably tilted with respect to the longitudinal axis 402A of the mandrel 401A.

The mandrel 401A, belt 403A, and associated pulley system form part of the station 4 for forming the rod 2A. In a continuous process in which the tubular rod 2A progressively advances from the mandrel 401A and the inner paper strip 7A and the outer paper strip 8A are progressively pulled, they receive the inner paper strip 7A and the outer paper strip 8A and pull them. The molding station 4 is configured to spirally wrap around each other and around the mandrel 401A.

The device 1 also includes an adhesive unit 301 (also referred to as a "rubber").

The adhesive unit 301 is configured to coat at least one of the inner surface of the outer strip 8A or the outer surface of the inner strip 7A with the adhesive material. The adhesive is preferably a liquid or semi-liquid adhesive (eg vinyl adhesive).

Preferably, the adhesive unit 301 is placed in the paper feeder so that the adhesive is on the inner strip 7A and the outer strip 8A when reaching the mandrel.

Preferably, the adhesive is applied only to the inner surface of the outer strip 8A. Therefore, the adhesive unit 301A is preferably arranged along the withdrawal path of the outer paper strip 8A. Preferably, no adhesive is placed on the inner paper strip 7A when fed to the mandrel 401A.

In an exemplary embodiment, the device 1 comprises at least one scraping element 302A located upstream of the bonding unit 301A.

The scrape element 302A is configured to treat one surface of the paper strip in preparation for optimal reception of the adhesive. The scrape element 302A is basically a known type and will not be described in more detail here. Preferably, the scrape element 302A is arranged along the withdrawal path of the outer paper strip 8A so as to process the inner surface of the outer paper strip 8A.

In an exemplary embodiment, the device 1 comprises at least one strain reducing element 303A. The strain reducing element 303A interacts with one or more sheets of paper strips and is configured to receive mechanical stresses that pre-place them for spiral winding. The strain reducing element 303A is basically a known type and will not be described in more detail here.

In an exemplary embodiment, the device 1 comprises an inner strain reducing element 303A and an outer strain reducing element 304A. The inner strain reducing element 303A acts on the inner paper strip 7A. The outer strain reducing element 304A acts on the outer paper strip 8A.

The outer strain reducing element 304A is preferably arranged on the upstream side of the bonding unit 301A. The outer strain reducing element 304A is preferably arranged on the downstream side of the scraping element 302A. The inner strain reducing element 303A and the outer strain reducing element 304A can be formed as a single structure or as two separate structures.

It should be noted that the scrape element 302A and the strain reducing element 304A form a part of the paper supply unit 3. In a feasible embodiment, the scrape element and the strain reduction element can be the same as long as the single element realizes both the scrape function and the distortion reduction function. It should be noted that the device 1 (particularly the supply unit 3) also comprises a plurality of transmission rollers 305 that are coupled to the corresponding paper strips to keep them in a stretched state and to form a predetermined path to those strips. back.

In an exemplary embodiment, the device 1 also comprises an inner paper roll 306 and an outer paper roll 307. The function of the inner roll 306 is to supply the inner strip 7A and the function of the outer roll 307 is to supply the outer strip 8A. Further, an adjustment unit (“Dundee Roller”) is arranged on the downstream side of each roll.

The following points will be described with respect to the cutting station 5 of the apparatus 1.

The cutting station 5 is arranged downstream of the mandrel 401A so as to cut the paper tubular rod 2A coming out of the mandrel 401A into pieces 200.

The cutting station 5 comprises a blade 501 configured to cut the rod 2A between two sides. The blade 501 is placed on the cut surface 502. Preferably, the cut surface 502 is perpendicular to the longitudinal axis 402A. In an exemplary embodiment, the blade 501 is mounted on a movable carrier unit 503. Preferably, the blade 501 is movable along a closed trajectory (eg, integrally with the carrier unit 503). This movement is continuous. The trajectory of the blade 501 is preferably contained within the displacement plane 504 (which means that any point on the blade 501 moves along the trajectory contained within the displacement plane). Preferably, the trajectory drawn by the blade 501 is a circular track around the rotation axis 505 that is inclined with respect to the cut surface 502. The rotation shaft 505 is tilted with respect to the longitudinal axis 402 of the mandrel 401A (which is also the axis of the rod 2B).

In this way, the cut surface 502 is movable along the longitudinal axis 402. The cut surface 502 can be moved by translation along the longitudinal axis 402.

The device 1 comprises an actuator (basically a known type, not shown) for moving the blade 501 along its trajectory at a certain speed.

The device 1 includes a control unit (not shown) having an electronic card with a memory and a processor.

The control unit is connected to the actuator of the blade 501 to control the speed of its displacement along its trajectory. Preferably, the velocity component of the blade 501 in the direction along the longitudinal axis 402A is the same as the feed rate of the rod 2A in the stretch of the trajectory in which the blade 501 cuts the rod 2A, i.e., the velocity of the blade 501 as such. The control unit is programmed to set the displacement rate of the blade 501 along its trajectory according to the supply rate of the rod 2A along the longitudinal axis 402A so that is oriented.

Further, it is preferably described that the cut surface 502 and the displacement surface 504 are inclined at a predetermined angle with respect to each other.

In an exemplary embodiment, the device comprises a plurality of blades 501 (eg, two), preferably a plurality of carrier units 503 (eg, two).

In an exemplary embodiment, the blade 501 (or a plurality of blades 501) is connected to a rotor 506, which is preferably cylindrical. Preferably, the carrier unit 503 (or the plurality of carrier units 503) is connected to the rotor 506. The rotor 506 is rotatable around the rotation shaft 505. Preferably, the blade 501 (or a plurality of blades 501) is connected to the periphery of the rotor 506. In the case of a plurality of blades 501, the blades are preferably arranged at equal angular intervals and located at the periphery of the rotor 506.

In an exemplary embodiment, the orientation of the shaft 505 is adjustable with respect to the cut surface 502 and with respect to the longitudinal axis 402 of the mandrel 401A. The tilt is adjusted as a function of the (translated) feed rate of the rod 2A along the longitudinal axis 402A.

It should be noted that the (translation) supply speed of the rod 2A along the longitudinal axis 402A is related to the speed of the belt 403 and the approach angles of the paper strips 7A and 8A with respect to the mandrel 401A.

It should be noted that the inner paper strip 7A and the outer paper strip 8A are preferably wound around the mandrel 401A at the same interval. Preferably, the inner paper strip 7A and the outer paper strip 8A are wrapped around the mandrel 401A at the same entry angle Z.

Preferably, the inner paper strip 7A and the outer paper strip 8A are wrapped around the mandrel 401A at an approach angle Z of 30-60 degrees in sexagesimal degrees.

Preferably, the inner strip 7A is wound around the mandrel 401 so that each one winding portion overlaps (and has no gaps) with the other winding portion (ie, the next winding portion). Preferably, the outer strip 8A is wound around the mandrel 401 so that each one winding portion overlaps (and has no gaps) with the other winding portion (ie, the next winding portion). Preferably, each roll portion of the outer strip 8A is offset longitudinally with respect to each roll portion of the inner strip 7A by a predetermined length Q. For example, the length Q is half the interval P.

Also, in an exemplary embodiment, the device 1 comprises a take-out station 6.

The take-out station 6 is arranged on the downstream side of the cutting station 5. The take-out station 6 is configured to receive the piece 200 of the tubular rod 2A.

In an exemplary embodiment, the take-out station 6 comprises one or more drums 601 that rotate about each corresponding take-out rotation axis 602 parallel to the longitudinal axis 402A of the mandrel 401A.

The drum 601 (or each drum) has a plurality of housings 603 formed around the drum 601 itself. The housing 603 is configured to receive the corresponding piece 200. Preferably, the housings 603 are evenly spaced along the periphery of the drum 601. Further, the take-out station 6 can have first and second drums 601 that are rotated and juxtaposed in opposite directions in order to increase the speed of supplying the cut pieces 200.

In an exemplary embodiment, the width of each of the plurality of housings 603 measured tangentially to the drum 601 is in the feed direction of the rod 2A, i.e., in the feed direction of the piece 200 from the cutting station 5 to the take-out station 6. , Become smaller.

Preferably, each housing 603 has a suction port connected to a suction unit to hold the piece 200 in place when the piece 200 is placed in the housing 603.

It should be noted that in an exemplary embodiment, the device comprises a beam 9 configured to receive and guide the piece 200 from the cutting station 5 to the extraction station 6.

In an exemplary embodiment, the device 1 comprises a heater (not shown) consisting of, for example, an electric resistor, an air jet, a lamp or another known heating device configured to heat the rod 2A. Preferably, the heater operates in the space downstream of the bonding unit 301A and upstream of the cutting station 5. For example, the heater is placed in the area of the device where the beam is placed. In an exemplary embodiment, the beam itself is heated, thereby constituting a heating element.

Hereinafter, a modified embodiment of the device 1 configured to form the second rod 2B in addition to the (first) rod 2A will be described.

The previous description of single rod machines also applies to multi-rod machines, or twin rod machines.

The device 1 for forming (simultaneously) the first rod 2A and the second rod 2B constitutes (the first mandrel 401A, the first inner strip 7A, the first outer strip 8A, and the first power drive belt 403A). It comprises a second mandrel 401B, a second inner paper strip 7B, a second outer paper strip 8B, and a second belt 403B (in addition to the mandrel 401A, the inner strip 7A, the outer strip 8A, and the belt 403A). The second inner strip 7B and the second outer strip 8B are wound around the second mandrel 401B. The second belt 403B also acts on the second outer strip 8B to form the second tubular paper rod 2B.

With respect to the elements of the paper supply unit 3 (301A, 302A, 303A, 304A) and the elements of the forming section 4 (401A, 402A, 403A, 404A, 405A, 406A, 407A, 408A, 409A, 410A), the first rod 2A and the first rod 2A. The device 1 for forming the two rods 2B (simultaneously) has the same number of elements (in the relevant drawings, reference numerals 301B, 302B, 303B, 304B) to which the above description applies (necessarily modified). , 401B, 402B, 403B, 404B, 405B, 406B, 407B, 408B, 409B, respectively), and for the sake of simplicity, these elements will not be described repeatedly.

The following description is for some of the devices configured to form (simultaneously) the first rod 2A and the second rod 2B in device 1, which was not described above for single rod machines (especially). (Regarding the paper supply unit 3) is applied.

The second mandrel 401B is arranged along the second axis 402B. Preferably, the second axis 402B of the second mandrel 401B is parallel to the longitudinal axis 402A of the first mandrel 401A. This means that the second axis 402B is also preferably a longitudinal axis.

The second belt 403B is hung in a loop around the third pulley 404B and the fourth pulley 405B. In an exemplary embodiment, the third pulley 404B and the fourth pulley 405B are rotatably coupled to the rear support arm 410B. The axis of rotation (preferably tilted) of the third pulley 404A and the fourth pulley 405A is included in the second position plane. The second position plane is preferably tilted with respect to the longitudinal axis 402A of the mandrel 401A. The second position plane is also preferably inclined with respect to the first position plane.

In an exemplary embodiment, the first mandrel 401A and the second mandrel 401B are juxtaposed along a lateral direction perpendicular to the longitudinal axis 402A of the first mandrel 401A. With respect to the lateral direction, the front support arm 410A (supporting the first pulley 404A and the second pulley 405A) and the rear support arm 410B (supporting the third pulley 404B and the fourth pulley 405B). Are subsequently juxtaposed with respect to each other. The first mandrel 401A, the second mandrel 401B, the front arm 410A, and the rear arm 410B are arranged one after another along the lateral direction (the direction away from the paper supply unit 3).

Preferably, the first mandrel 401A and the second mandrel 401B are offset from each other along the longitudinal direction.

In an exemplary embodiment, the first inner paper strip 7A and the first outer paper strip 8A are wrapped around the first mandrel 401A in the first rotational direction, and the second inner paper strip 7B and the second outer paper strip 8B are. , Around the second mandrel 401B, it is wound in the second rotation direction opposite to the first rotation direction.

The inner roll 306 is formed from an inner web 10 that is wider than the first inner paper strip 7A. (On the other hand, in the case of a single rod machine, the inner roll 306 is the inner strip 7A itself wound in the form of a roll).

The outer roll 307 is formed from an outer web 11 that is wider than the first outer paper strip 8A. (On the other hand, in the case of a single rod machine, the outer roll 307 is the outer strip 8A itself wound in the form of a roll).

The device 1 also comprises a cutting system configured to cut the inner web 10 and the outer web 11 in the longitudinal direction in order to obtain the first half web and the second half web from the respective webs. The two half webs obtained from the inner web 10 constitute the first inner strip 7A and the second inner strip 7B. The two half webs obtained from the outer web 11 constitute the first outer strip 8A and the second outer strip 8B.

In an exemplary embodiment, the device 1 cuts the inner web 10 longitudinally (ie, along the main direction of the extension) with the inner cutting unit 308 configured to cut the inner web 10 longitudinally. The outer cutting unit 309 configured as described above is provided. The inner cutting unit 308 and the outer cutting unit 309 form a cutting system.

In an exemplary embodiment, device 1 is located upstream of the inner cutting unit 308 and the outer cutting unit 309 and is centered with an inner centering element 317I that centers the webs 10, 11 with respect to the cutting units 308, 309 itself. It comprises element 317E (consisting of, for example, a movable roller).

In an exemplary embodiment, device 1 is located downstream of the inner cutting unit 308 and the outer cutting unit 309 and separates the just cut half web with the inner separating element 316I to form a separate paper strip. Includes element 316E. For example, the separating element comprises a roller or pulley or other transmission system.

In an exemplary embodiment, the apparatus 1 has first, second and third inner drawer units 310I, 311I, 312I and first, second and third inner adjustment units 313I, 314I, 315I and first, first. The second and third outer drawer units 310E, 311E, 312E and the first, second and third outer adjustment units 313E, 314E, 315E are provided.

Each withdrawal unit 310I, 311I, 312I, 310E, 311E, 312E comprises, for example, a motor driven roller acting on the corresponding strip or web to move while maintaining tension.

Each adjusting unit 313I, 314I, 315I, 313E, 314E, 315E comprises, for example, a plurality of pulleys or rollers mounted at variable distances from each other to increase or decrease the path of the paper (strip or web) to be connected. These rollers or pulleys can be idle and can preferably have a rotary swing shaft to compensate or reduce tension in the strip or web.

The first inner drawer unit 310I is arranged on the downstream side of the inner cutting unit 308 and is connected to the first inner paper strip 7A.

The first inner adjusting unit 313I is arranged on the downstream side of the inner cutting unit 308 and is connected to the first inner paper strip 7A. The first inner adjustment unit 313I interacts with the first inner drawer unit 310I.

The second inner drawer unit 311I is arranged on the downstream side of the inner cutting unit 308 and is connected to the second inner paper strip 7B.

The second inner adjusting unit 314I is arranged on the downstream side of the inner cutting unit 308 and is connected to the second inner paper strip 7B. The second inner adjusting unit 314I interacts with the second inner drawer unit 311I.

The third inner drawer unit 312I is arranged on the upstream side of the inner cutting unit 308 and is connected to the inner web 10.

The third inner adjusting unit 315I is arranged on the upstream side of the inner cutting unit 308 and is connected to the inner web 10. The third inner adjusting unit 315I interacts with the third inner drawer unit 312I.

The first outer drawer unit 310E is arranged on the downstream side of the outer cutting unit 309 and is connected to the first outer paper strip 8A.

The first outer adjusting unit 313E is arranged on the downstream side of the outer cutting unit 309 and is connected to the first outer paper strip 8A. The first outer adjustment unit 313E interacts with the first outer drawer unit 310E.

The second outer drawer unit 311E is arranged on the downstream side of the outer cutting unit 309 and is connected to the second outer paper strip 8B.

The second outer adjusting unit 314E is arranged on the downstream side of the outer cutting unit 309 and is connected to the second outer paper strip 8B. The second outer adjusting unit 314E interacts with the second outer drawer unit 311E.

The third outer drawer unit 312E is arranged on the upstream side of the outer cutting unit 309 and is connected to the outer web 11.

The third outer adjusting unit 315E is arranged on the upstream side of the outer cutting unit 309 and is connected to the outer web 11. The third outer adjusting unit 315E interacts with the third outer drawer unit 312E.

The control unit of the device is the inner cutting unit 308 and the outer cutting unit 309 with three stretches of paper towards the corresponding cutting units 308, 309, i.e. the first and second strips (inner and outer) on the downstream side. Connect to actuators of drawer units 310I, 311I, 312I, 310E, 311E, 312E and adjustment units 313I, 314I, 315I, 313E, 314E, 315E to balance tension with the upstream web (inside and outside). Will be done.

Preferably, when the device 1 is started, the formation of one of the two rods (eg, the first rod 2A) is started before the formation of the other rod (eg, the second rod 2B) is started. Thus, when the machine starts, the second belt 403B is stationary and the second rod 2B is not yet formed while the first belt 403A is in operation and the first rod 2A is about to be formed. There is a time interval. During this time interval, the first strips 7A, 8A (inner and outer) are pulled by the first belt 403A, thus pulling out the corresponding first strips 7A, 8A and pulling them into the forming section 4 (third). Both cutting units 308, 309 (inside and outside) need to be in operation to provide (to one mandrel 401A). At the same time interval, however, the second belt 403B does not apply any pulling action on the second strips 7B, 8B (inner and outer). Therefore, on the downstream side of the cutting units 308, 309 (inner and outer), the corresponding adjustment units 314I, 314E are pulled out (all the pull-out units are in operation), but the second rod 2B is pulled out. Paper that has not yet been pulled by the second belt 403B is taken in to form so that all paper strips can be maintained at the correct tension.

In an exemplary embodiment, the outer drawer and adjustment units 310E, 311E, 312E, 313E, 314E, 315E are upstream of the adhesive units 301A, 301B with respect to the path formed by the first and second outer strips 8A, 8B. Placed in. In an exemplary embodiment, the outer drawer / adjustment units 310E, 311E, 313E, 314E are located downstream of the scrape elements 302A, 302B with respect to the path formed by the first and second outer strips 8A, 8B. .. Then, it can be on the upstream side or the downstream side of the strain reducing elements 304A and 304B.

Since the width of the outer roll 307 is preferably wider than the width of the inner roll 306 and the corresponding outer web 11 is preferably wider than the inner web 10, the inner roll 306 and the outer roll 307 preferably have different characteristics. I will describe it.

In a preferred exemplary embodiment, the cutting station 5 is common to both the first and second rods 2A, 2B. Alternatively, the cutting station 5 may include one blade for cutting the first rod 2A and another blade for cutting the second rod 2B. In that case, both blades are connected to the same moving structure (eg to the same rotor 506). Alternatively, different blades can be connected to different moving structures, but preferably linked moving structures.

Preferably, all pieces 200 (everything cut from the rod) are collected in the same (common) eject station 6.

In an exemplary embodiment, the device comprises a heating element located upstream of the mandrel 401A (or, if more than one, two or more mandrel), which is located in the supply section 3.

In an exemplary embodiment, the device 1 is a module, i.e., one or more parts thereof are replaceable with other parts performing different functions. For example, the beam and the forming section 4 form a toe rod (which constitutes a cylindrical toe) according to a technique of a fundamentally known type, instead of a paper tubular rod that is spirally wound. It can be replaced with other forming sections with other beams configured to process the tow.

Functionally, the operation of the device is as described below with respect to embodiments of forming the single rod 2A.

The inner roll 306 supplies an inner strip 7A of paper that is spirally wrapped around the mandrel 401A. On the downstream side of the inner roll 306, the inner strip 7A is preferably pulled out and adjusted (in its path and therefore also its tension) by the inner drawer unit 312I and the inner adjustment unit 315I.

At the same time, the outer roll 307 supplies the outer paper strip 8A, which is spirally wound around the inner paper strip 7A. On the downstream side of the outer roll 307, the outer strip 8A is preferably pulled out and adjusted (in its path and therefore also its tension) by the outer drawer unit 312E and the outer adjustment unit 315E.

On the upstream side of the mandrel 401A, an adhesive is applied to the outer strip 8A and on its inner surface (ie, the inner surface of the tube that is in contact with the inner strip 7A and constitutes the rod 2A).

Preferably, the outer strip 8A is heated after the adhesive has been applied and before being wrapped around the mandrel 401A. Preferably, the rod 2A is heated before it is cut.

During its formation, the rod 2A advances along the longitudinal axis of the mandrel and passes through the second end (free end) of the mandrel 401A in a region where only air is inside the rod 2A.

Cutting the rod 2A into pieces is preferably performed in the region without the mandrel 401A.

Preferably, the piece 200 is cut by the blade 501 perpendicular to the rod 2A. When cutting, the blade 501 progressively moves longitudinally in the supply direction of the rod 2A so that there is no longitudinal relative velocity between the rod 2A and the blade 501.

Preferably, during cutting, the blade completely cuts the cylinder composed of the rod 2A between the two sides.

If two (or more) rods 2A, 2B are formed simultaneously, the steps listed above should be performed in duplicate for the two pairs of paper strips used to form the two rods. And, in addition to these steps, the following additional steps are performed.

Preferably, two rolls are used (although in other embodiments, four rolls can also be used). The two rolls are an inner roll for providing the first and second inner strips 7A, 7B and an outer roll for providing the first and second outer strips 8A, 8B. Therefore, the inner roll 306 is formed from the inner web 10 whose width is equal to the sum of the widths of the first and second inner strips 7A, 7B. Similarly, the outer roll 307 is formed from the outer web 11 whose width is equal to the sum of the widths of the first and second outer strips 8A, 8B.

Preferably, between the rolls 306, 307 and the forming section 4 (preferably on the upstream side of the bonding unit), the inner web 10 and the outer web 11 are longitudinally cut (and separated), first and separated. The second inner strips 7A, 7B and the first and second outer strips 8A, 8B are formed.

Before and after cutting the web longitudinally, the drawer and length of the web or cut strips are adjusted to prevent the paper from losing tension and loosening.

Regardless of the number of rods, after cutting, the piece 200 is preferably received (and held within it by suction) in a longitudinally extending housing that rotates about the longitudinal axis, and then the extension of the rod 2A. It is supplied downstream of the machine in the lateral direction with respect to the longitudinal direction of the machine.

As used herein, the terms mandrel 401A, inner strip 7A (paper), outer strip 8A (paper), and belt 403A are at least the first when described in embodiments with two or more rods. First or second mandrel 401A, 410B, at least (paper) first or second inner strip 7A, 7B, at least (paper) first or second outer strip 8A, 8B, and at least first or second belt 403A It should be noted that it is intended to be interpreted as, 403B.

International Publication No. 2004/106017 (WO2004 / 106017A1) Canadian Patent No. 793059 (CA793059A) UK Patent No. 1083088 (GB1083088A) UK Patent No. 1083089 (GB1083089A) U.S. Pat. No. 3,349777 (US3349777A)

Claims (15)

A device (1) for producing a semi-finished product that forms part of a smoker's product.
A stationary mandrel (401A) extending along the longitudinal axis (402A), and
An inner strip of paper (7A) that is functionally spirally wrapped around the mandrel (401A).
An outer strip (8A) of at least one outer strip of paper that is functionally spirally wound around the inner strip (7A) so that the inner surface of the outer strip is in contact with the outer surface of the inner strip. When,
The outer strip (8A) to provide the inner strip (7A) and the outer strip (8A) with rotational movement around the longitudinal axis (402A) and translational movement along the axis in the supply direction of the mandrel. ), The belt (403A) is in contact with the outer strip (8A) on a contact surface spirally arranged with respect to the longitudinal axis (402A). With the belt (403A),
To cut a paper tubular rod (2A) consisting of an inner strip (7A) and an outer strip (8A) of the paper coming out of the mandrel (401A) and adhering to each other into pieces (200). A cutting station (5) located downstream of the mandrel (401A), the cutting station (5) having the longitudinal axis (5) for cutting the rod (2A) between two surfaces. It is placed on a cut plane (502) perpendicular to the cut plane (502) and tilted with respect to the cut plane (502) so that the cut plane (502) can move along the longitudinal axis (402A). A cutting station (5) with a blade (501) that is movable along a circular orbit around the axis of rotation (505).
A device equipped with. The device according to claim 1.
The mandrel (401A), the inner strip of paper (7A), and the outer strip of paper (8A) constituting the first mandrel, the first inner strip of paper, the first outer strip of paper, and the first power drive belt, respectively. ) And the belt (403A), a second mandrel (401B), a second inner strip of paper (7A), a second outer strip of paper (8B), and a second power drive belt (403B). And
The second inner strip (7B) and the second outer strip (8B) are wound around the second mandrel (401B) to form the second tubular rod (2B). (403B) acts on the second outer strip (8B) and
The device is
With the outer roll (307) of the outer web (11) and the inner roll (306) of the inner web (10),
At least one cutting unit configured to longitudinally cut the inner web (10) and the outer web (11) to form a first half web and a second half web of each corresponding pair. (308,309) and
Equipped with
The first half web and the second half web obtained from the inner web (10) form the first mandrel so as to form the first inner strip (7A) and the second inner strip (7B), respectively. Wrapped around (401A) and the second mandrel (401B), respectively.
The first half web and the second half web obtained from the outer web (11) form the first mandrel so as to form the first outer strip (8A) and the second outer strip (8B), respectively. A device wound around (401A) and the second mandrel (401B), respectively. The device according to claim 2.
For each of the inner web (10) and the outer web (11)
A first drawer unit (310I, 310E) having a first power drive supply roller located downstream of the at least one cutting unit and connected to the corresponding first paper strips (7A, 8A).
A first adjustment unit (313I, 313E) having a first system of mutually movable transmission rollers for increasing or decreasing the path of the first paper strip (7A, 8A).
A second drawer unit (311I, 311E) having a second power drive supply roller located downstream of the at least one cutting unit and connected to the corresponding second paper strips (7B, 8B).
A second adjusting unit (314I, 314E) having a second system of mutually movable transmission rollers for increasing or decreasing the path of the second paper strip (7B, 8B).
A third drawer unit (312I, 312E) having a third power drive supply roller located upstream of the at least one cutting unit and connected to the corresponding webs (10, 11).
A third adjusting unit (315I, 315E) having a third system of mutually movable transmission rollers for increasing or decreasing the path of each of the webs (10, 11).
A device equipped with. The device according to claim 2 or 3.
The second mandrel (401B) is oriented along a longitudinal axis (402B) parallel to the longitudinal axis of the first mandrel (401A).
The cutting station (5) is also a device configured to cut the second tubular rod (2B) into pieces (200). The apparatus according to any one of claims 1 to 4, wherein the adhesive is arranged on at least one of the inner surface of the outer strip of the paper and the outer surface of the inner strip of the paper. A device comprising (301A). The device according to claim 5.
The adhesive unit (301A) is configured to be arranged along the withdrawal path of the outer paper strip (8A) and to arrange the adhesive on the inner surface of the outer paper strip.
A device in which no adhesive is placed on the inner strip (7A) on the upstream side of the mandrel (401A). The device according to claim 5 or 6, comprising at least one scraping element (302A) that acts on the inner surface of the outer strip (8A) and is located upstream of the bonding unit (301A). .. The apparatus according to any one of claims 1 to 7, wherein at least one outer strain reducing element (304A) acting on at least the outer strip (8A) of the paper and the inner strip (7A) of the paper, respectively. And one inner strain reducing element (303A). The device according to any one of claims 1 to 8.
It comprises a first pulley (404A) and a second pulley (405A) that rotate about each corresponding axis of rotation that is parallel to each other and perpendicular to the longitudinal axis (402A) of the mandrel (401A). And
The belt (403A) comprises the first pulley (404A) and the second pulley (404A) so as to form a forward section (406A) and a return section (407A) that intersect each other.
It is hung in a loop around 405A).
The forward section (406A) is wrapped around the mandrel (401A) at a right angle of 30-60 degrees, and the forward section (406A) is the first pulley (404A) and the mandrel (401A). The first stretch (408A), which is connected to each other to form a 90-degree twist in the first direction, and the second pulley (405A) and the mandrel (401A) are connected to each other and are opposite to or opposite to the first direction. A device having a second stretch (409A), which forms a 90 degree twist in the second direction in the same direction. The device according to any one of claims 1 to 9.
It comprises a take-out station (6) located downstream of the cutting station (5) and configured to receive the piece (200) of the tubular rod (2A).
The take-out station (6) comprises a drum (601) that rotates about an axis (602) parallel to the longitudinal axis (402A) of the mandrel (401A), wherein the drum is the drum (601). It has multiple housings (603) that are evenly spaced around the perimeter of the drum.
Each of the plurality of housings (603) is a device in which the width measured in the tangential direction with respect to the drum (601) becomes smaller in the supply direction of the tubular rod (2A). The device according to any one of claims 1 to 10.
The inner strips (7A) wound around the mandrel (401A) have a predetermined spacing (P), and the respective winding portions are juxtaposed with each other without overlapping.
The outer strips (8A) wrapped around the mandrel have the predetermined spacing (P), and each one-roll portion is juxtaposed with each other without overlapping.
A device in which each one-roll portion of the outer strip (8A) is offset longitudinally with respect to each one-roll portion of the inner strip (7A). The device according to any one of claims 1 to 11, wherein the device includes a heater that operates in a space located on the downstream side of the bonding unit (301A) and on the upstream side of the cutting station (5). A method for producing semi-finished products that form part of smoker goods,
A step of preparing an inner strip of paper (7A) and spirally winding the inner strip of paper around a stationary mandrel (401A) extending along a longitudinal axis (402A).
In the process of preparing the outer strip (8A) of paper, the outer strip is functionally spiraled around the inner strip (7A) so that the inner surface of the outer strip touches the outer surface of the inner strip. The process of preparing the outer strip (8A) of paper to be wrapped around
A step of applying an adhesive to at least one of the inner surface of the outer strip (8A) and the outer surface of the inner strip (7A).
In the rotational movement and supply direction of the mandrel (401A) around the longitudinal axis (402A) so as to form a tubular rod (2A) that is continuously supplied along the longitudinal axis (402A) in the supply direction. A belt (403A) spirally wound around the outer strip (8A) is moved in order to provide translational motion along the axis (402A) to the inner strip (7A) and the outer strip (8A). Process and
It is oriented in a cut plane (502) perpendicular to the longitudinal axis (402A) and moves along a circular trajectory around a rotation axis (505) that is inclined with respect to the cut plane (502). A step of cutting the tubular rod (2A) downstream of the mandrel (401A) using a possible blade (501), wherein the cutting surface (502) is along the longitudinal axis (402A). The tubular rod (2A) is movable and contains a translation component along the longitudinal axis (402A) in the supply direction while the rod (2A) is being cut. ) And the process of cutting
How to include. The method according to claim 13.
The mandrel (401A), the inner strip (7A), the outer strip (8A), and the belt (403A) constituting the first mandrel, the first inner strip, the first outer strip, and the first power drive belt, respectively. In addition to this, it is a step of preparing a second mandrel (401B), a second inner strip of paper (7B), a second outer strip of paper (8B), and a second belt (403B). A second tubular rod (2B) in which the strip (7B) and the second outer strip (8B) are wound around the second mandrel (401B) and continuously supplied from the second mandrel (401B). A step of spirally supplying the second outer strip (8B) to which the second belt (403B) is attached to the second inner strip (7B) for formation.
The step of preparing the outer roll (307) of the outer web (11) and the inner roll (306) of the inner web (10),
The step of cutting the inner web (10) and the outer web (11) in the longitudinal direction so as to form the first half web and the second half web of each corresponding pair, wherein the inner web (10) is formed. ) And the second half web form the first inner strip (7A) and the second inner strip (7B), respectively, and obtained from the outer web (11). A step in which the first half web and the second half web form the first outer strip (8A) and the second outer strip (8B), respectively.
How to include. The method according to claim 14.
For each of the inner web (10) and the outer web (11)
Using the first drawer unit (310I, 310E) and the first adjustment unit (313I, 313E), respectively, the first strip (7A, 8A) of the paper is pulled out, and the web itself (10, 11) is cut. A step of adjusting the length of the path formed by the first strip (7A, 8A) on the downstream side, and
Using the second drawer unit (311I, 311E) and the second adjustment unit (314I, 314E), respectively, the second strip (7B, 8B) is pulled out, and the second strip is downstream of the cut of the web itself. The step of adjusting the length of the path formed by (7B, 8B) and
Using the third drawer unit (312I, 312E) and the third adjustment unit (315I, 315E), respectively, the web (10, 11) is pulled out and formed by the web on the upstream side of the cut of the web itself. The process of adjusting the length of the path and
The first withdrawal unit (310I, 310E), the second withdrawal unit (311I, 311E) and the third withdrawal unit (312I) as a function of the detected tensions of the first strip, the second strip and the web. , 312E), and a step of automatically controlling the first adjustment unit (313I, 313E), the second adjustment unit (314I, 314E), and the third adjustment unit (315I, 315E). Method.

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