JPH03133707A - Wrapping apparatus for raw fabric - Google Patents

Abstract

PURPOSE:To enable wrapping raw fabric into a roll of fabric in wrapping paper by providing a device designed to freely open and close over raw fabric laid on a supporting roller in such a manner as to encircle the raw fabric and by providing also a device for holding the raw fabric, which is connected to a winding device having a tension-adjusting function. CONSTITUTION:A roll of raw fabric 2 is mounted on supporting rollers 3A, 3B and made to rotate on its axis by actuating a driving source 5. By closing an opening-and- closing device comprising members 15A, 15B around the raw fabric from above, a raw fabric-holding device 30 having the form of a sash and passed over the loose end of one member and having one end fixed to the loose end of the other member is laid in contact with and in a manner of encircling the raw fabric. The raw fabric- holding device is housed in a coil in a winding device 27 which has a tension-adjusting function; it slides against only the loose end 15a of one member 15A of the opening- and-closing device, and hence the device performs the opening and closing smoothly and without trouble or impairment of the raw fabric-holding device 30. The surface of the raw fabric-holding device 30 is designed to produce but an extremely low order of friction so that wrapping paper W inserted between the supporting roller 3A and the raw fabric 2 can be guided to the raw fabric-holding device 30 in a manner of slipping and wound on the raw fabric.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a fabric packaging device, and in particular to a fabric packaging device that can simplify the mechanism and realize improved reliability and cost reduction. be.

[Conventional technology]

When packaging so-called original fabrics made of paper, cloth, film, etc. wound into a roll, the wrapping paper is usually wrapped around the original fabric in the form of a roll, and then a tube is inserted from the end of the original fabric in the wrapped wrapping paper. This is completed by folding the protruding part into the end face side (this is usually called "gathering").

As a packaging device that performs the wrapping process in packaging raw material as described above, for example, the one shown in FIGS. ”) are disclosed or provided.

The structure and operation of this packaging device 40 will be explained below. Reference numerals 41A and 41B are winding rolls that are driven to rotate around an axis, and these winding rolls 41A and 4
By setting the cylindrical article Y to be wrapped (wrapped) on 1B, rotation is given to the cylindrical article Y. Reference numeral 43 denotes an elevating solinder, the tip of whose telescopic rod 43a is connected to the shaft 4.2A of the winding rolls 41A, 4.1B;
It is pin-coupled to one end of a link member 44 which is pivotally connected to 42B. As a result, one of the winding rolls 41B is lowered as shown in FIG. It is ready to be sent.

Rotating rolls 47A, 4.7B rotating around fixed shafts 46A, 46B are disposed above the winding rolls 4-I A, 4.1, H, and further, fixed shafts 46A, 4.7B. 46B has an opening/closing arm 48A at each shaft end.
48B are provided respectively. Double opening/closing arm 48
There are rollers 5 between the tips and intermediate parts of A and 48B.
0A, 5.0B 51A, 51B are each rotatably provided. Also, the rotating roll 4
Tennoyon arms 52 are installed at both shaft ends of 7A 47B.
A and 52B are provided so as to be rotatable about their axes, and rollers 53A and 53B are provided at one end of these tension arms 52A and 52B, and springs 54A and 54B are provided at the other end. The other ends of the springs 54A, !54B are fixed to the opening/closing arms 48Δ, 48B and fixed parts 49A, 49.
Each is attached to B.

A series of endless belts 55 are stretched between the marking rollers 50A, 51Δ, 53A, rotating rolls 47A, 47B, and rollers 5313, 51B, and 50B.

Further, a link member 56 is rotatably attached to the opening/closing arm 48B and the body of the fixed shaft 46B, and this link member 5
6 is pin-coupled to the telescopic rod 57a of the reciprocating flick 57. Similarly, a large diameter gear 58 is provided on the fixed shaft 46B integrally with the opening/closing arm 48B, and a small diameter gear 59 meshed with the large diameter gear 58, which is provided integrally with the opening/closing arm 48Δ on the fixed shaft 46A. are doing.

In the packaging device 40, the cylindrical article Y is wrapped around the body by the following operation.

The cylindrical article Y is rolled up by a winding roll 41A, 4.1. B and rotated in the direction of arrow C.

When the endless belt 55 is run in the direction of arrow d by a drive device (not shown) and the telescopic rod 57a of the reciprocating flick 57 is retracted, large diameter gears 58.
The opening/closing arms 48A 48B are closed by the small diameter gear 59. As a result, the endless belt 55 surrounds and covers the cylindrical article Y. At this time, the spring 5
4 A, 54 B, 1; and link members 52A, 52B
The tension of the endless belt 55 is kept constant by the action of the tension applying mechanism configured by the above. After the endless belt 55 surrounds the cylindrical article Y, the wrapping paper W cut into an appropriate length is guided between the cylindrical article Y and the winding roll 41B by the feeding mechanism 60, and the wrapping paper W is wrapped. After passing between the cylindrical article Y and the winding rolls 4IA and 41B, the paper W is guided between the cylindrical article Y and the endless belt 55,
It rotates once while maintaining the attached state with the cylindrical article Y, and wrapping of the wrapping paper W onto the cylindrical article Y is completed.

[Problem to be solved by the invention]

By the way, according to the above-mentioned packaging device 40, it is true that the wrapping paper W can be wrapped around the cylindrical article Y smoothly, but it has the following disadvantages that should be solved.

That is, the packaging device 40 runs the endless heald 55 stretched between a large number of rollers or rotating rolls, and also controls the positional relationship between the rollers or rotating rolls while suppressing changes in the tension of the endless belt 55 using a tension applying mechanism. First, it requires an extremely complicated mechanism to realize such a function, which increases manufacturing costs.

Second, although the endless belt 55 that runs stretched between a large number of rollers is equipped with a tensioning mechanism, - the positional relationship of supporting points (rollers, rotating rollers, etc.) that is repeated in each process is They are constantly subject to constant changes due to changes in temperature, and therefore have a short lifespan and require periodic inspection, adjustment, or replacement.

Thirdly, since the shape of the traveling endless heald 55 is changed while suppressing the change in tension, it is naturally impossible to expect rapid movement, and therefore the processing speed for each cylindrical article Y is reduced. This means that it is too late.

The present invention has been made in view of the above circumstances, and it not only makes it possible to carry out smooth and reliable body wrapping, but also simplifies the mechanism, thereby increasing the processing speed in response to fast movements. It is an object of the present invention to provide a fabric packaging device that can eliminate maintenance related to breakdowns and the like as much as possible, and can reduce costs overall.

[Means to solve the problem]

The original fabric packaging device according to the present invention is a device for wrapping wrapping paper around the original fabric in advance in a roll shape when wrapping the original fabric, and includes a support roller that supports the original fabric rotatably around an axis. a drive source that applies rotational force to the support roller to rotate the original fabric placed on the support roller; The opening/closing member is configured to be able to open and close freely so as to surround the original fabric from both sides in the radial direction, and the opening/closing member is formed in the shape of a flexible band with at least one surface having a low friction surface, and the proximal end has a tension adjustment function. a web holding member connected to the winding device, and having the other end fixed to the free end of the other opening/closing member through the free end of one of the opening/closing members. That is.

[Effect]

When the original fabric is placed on the support roller and the drive source is activated, the original fabric is rotated around its own axis. When the opening/closing member is closed from above with respect to this web, a band-shaped web holding member whose one end is fixed to the free end of the other opening/closing member via the free end of one opening/closing member, or It is attached to the original fabric so as to surround it.

The original fabric holding member is wound and housed in a winding device having a tension adjustment function, and is not driven by itself. Furthermore, since this web holding member only slides on the free end of one of the opening/closing members, the opening/closing operation of the opening/closing member can be performed smoothly and quickly, and the work sheet holding member can be easily opened and closed. It won't hurt either. In addition, the surface of the original fabric holding member is a low-friction surface with extremely low friction.
The wrapping paper supplied between the support roller and the original fabric is guided in a slipping state with respect to the original fabric holding member and is wound around the original fabric.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are a side view and a front view, respectively, showing an original fabric packaging device according to the present invention.

Reference numeral 2 in FIGS. 1 and 2 is a frame constituting this device 1. In FIG. Symbols 3A and 3B (Fig. 1) are support rollers that support the raw fabric Z (two types, large diameter and small diameter are shown) so as to be rotatable around the axis. There are two of them, both of which are rotatable around their axis.

A pulley 4 is provided at one end of one support roller 3A. Below the rollers 3A3B of the frame 2, a motor (drive source) 5 is installed at one end of the pulley 4, and an output shaft 5a of the motor 5 is connected to the A heddle 7 is stretched between the pulley 6 and the pulley 4. That is, the support roller 3A is rotated around an axis by the drive of the motor 5. An endless belt 8 is hung between the supporting rollers 3A and 3B (
It is a transfer.

Further, in this case, the support roller 3B is attached to a roller support frame that is configured to be swingable on a support shaft 14.14 (FIG. 2) that is provided on the coaxial extension of the rotation shaft 3a of one of the support rollers 3A. 9 and the roller support frame 9
A feed plate 11 that also serves as a paper feed function is integrally attached to the. Furthermore, the tips of telescopic rods 12a and +2a of air cylinders -12 and 12 are connected with pins to the back side of the feed plate 11, respectively, so that the support roller 3B and the feed plate II are vertically moved around the support shaft 14. It is designed to allow zero vibration. In addition, as shown in Fig. 1, the cylinder bodies of the two air cylinders +2
b is rotatably supported by a pin 13, and its posture can be changed in response to the expansion and contraction movements of the telescopic rod 2a.

Further, above the support rollers 3A, 3B, there is a pair of opening/closing members 15A in a dogleg shape.

15B, and their free ends +5a and 15b are provided so that they face inward. This opening/closing member + 5A
, 15B are support rollers 3A, 3B as shown in FIG.
They are arranged at a plurality of locations (three locations in the illustrated example) along the longitudinal direction. These paired opening/closing members + 5A, 1
5B have their base ends 15a', +5b' coaxially and swingably attached to a shaft 19 provided on a bracket 18 attached to the frame 2 in parallel with the support rollers 3A, 3B. There is. Further, the opening/closing members 15A 15B are shaped like a "dog" so that their free ends face inward from each other.

An air cylinder 20 is erected at the second part of the central bracket 18 among the three brackets 18 disposed as described above, with its telescopic mouth nod 20a facing upward. The tip of the telescopic rod 20a is connected to a head par 21 extending in the axial direction of the support rollers 3A, 3B.
is connected to the center of the At both ends of the head bar 21, one end of link members 22A, 22B is provided swingably. These link members 22Δ, 22B
The other end is pivotally supported by underpars 24A and 24B that are horizontally suspended between support rods 23A and 23B that project outward from the opening/closing members 15A and I'5B.

In FIG. 2, the reference numeral 25 is a guide rod for guiding the vertical movement of the head par 21, and the reference numeral 26 is a guide bush thereof.

Further above the head par 21, a winding device 27 is attached to the frame 2 in correspondence with the installation positions of the three opening/closing members 15A, 15B. The ends of the strings 28 wound around the winding devices 27 are connected to the proximal end of the original fabric holding member 30, respectively. Original fabric holding member 3
In this case, t 2 is constituted by a roller chain as shown. The roller chain is formed into a string-like body by connecting a large number of rollers 3I, 31, etc.
It is highly flexible and has an extremely small coefficient of friction.

The tip of the original fabric holding member 30 is connected to the free end 1 of the other opening/closing member +5A via the free end +5b of one closing member 15B.
It is fixed at 5a. Opening/closing member 1.5 Free end of B +
5b and the bent portion 15b'' forming a “dog” shape,
Support roller l for slidably holding the original fabric holding member 30 6. +7 are provided respectively.

Note that the tension adjustment function provided in the winding device 27 is to pull the string 28, that is, the original fabric holding member 30, so that a constant tension is maintained at all times.

In addition, reference numeral 10 in FIG. 1 indicates the support rollers 3A, 3B for receiving the raw material Z to be wrapped (wrapped) from the previous process device.
ni-uke is a delivery board for passing.

A plurality of air nozzles 33 33. are located near the support roller 3A on the delivery plate 10. . . ., the support roller 3
It is arranged toward the Δ side. Note that the reference numeral 34 in the figure is
This sensor is provided on the feed plate 11 and detects the presence or absence of broadcast paper on the feed plate Il.

Next, the functions and effects of the packaging device 1 configured as described above will be explained.

In the receiving state of the raw fabric Z, as shown in FIG. 3, the support roller 3B is in the normal state, that is, the
Keep A and 3B in a nearly horizontal position, and
The opening/closing parts 15A and 15B are moved upward with their legs opened.

To place the support rollers 3A, 3B in a horizontal position, the air cylinder 12 is operated to extend the telescopic rod 12a. As mentioned above, the support roller 3B has the support shaft +4
(FIG. 2) is provided on the roller support frame 9 with the swing center thereof, the support roller 3B moves upward due to the extension of the telescopic rod 12a, and the support roller 3B moves upward.
It is set in a position parallel to A. On the other hand, the opening/closing member +
In order to put the legs 5A and 15B in the open state, the air cylinder 3 4 20 is operated to extend the telescopic rod 20a upward. As the head par 21 moves upward, the under par 24A is moved through the link members 22A, 22B.
24 B move upward, respectively, and the opening/closing member + 5A
, 15B are opened around the axis 19. In this state, the original fabric holding member 30 has one end pulled with a constant tension by the winding device 27, so that the free end 1 of both opening/closing parts (415A, 15.B
5a and I5b in a straight line.

When the above state is reached, the raw material Z to be packaged is supplied from the delivery plate IO, and the two wooden support rollers 3 arranged horizontally
It is placed on A, 3, and B. In reality, the belt 8 is hung between both support rollers 3A and 3B, so
The original fabric Z is placed on both rollers 3A and 3B via this belt 8.

The original fabric Z is supplied from a pre-processing device (not shown).

Next, when the motor 5 is started, the support roller 3A rotates via the pulley 6, the belt 7, and the pulley 4.

The direction of rotation is the direction of arrow a in the figure.

As a result, the original fabric Z is rotated in the direction of the arrow A, and the other support roller 3B is also rotated. At the same time, the belt 8 also runs endlessly between the rollers 3A and 3B.

Next, as shown in FIG. 4, the air cylinder 20
By retracting the telescopic rod 20a, the opening/closing member +
Close legs 5A and 15B. Thereby, the original fabric holding member 30 surrounds approximately the upper half of the original fabric Z. To explain the state from when the opening/closing members +5A and 15B change from the open state to the closed state and the web holding member 30 surrounds the web Z, the web holding member 30 has one end connected to the winding device 27. Since the opening/closing members +5A and 15B are in the process of changing from the open leg state to the closed leg state as described above, the free end +5b of one of the opening/closing members 15B is connected to the original fabric holding member 30. The original fabric holding member 30 remains stretched in a straight line between both free ends 15a and 15b. Then, the original fabric holding member 5 6 30 comes into contact with the original fabric Z, and thereafter the free end 15 . a, 15
As b moves downward, the original fabric holding member 30, which was linear, is attached along the original fabric Z, and the free end 1
5b will now move while sliding in the opposite direction to the above with respect to the original fabric holding member 30. Also, at this time,
As shown in FIG. 5, when the original fabric Z has a small diameter, the original fabric holding member 30 is rewound by the winding device 27, and when the original fabric Z has a large diameter, the original fabric holding member 30 is rewound by the winding device 27. Winding device 2
It will be drawn from 7.

After the above state, using the air nozzle 33, the wrapping paper W cut to a predetermined size is transferred from the feed plate ll side to the original roll Z and the support roller 3. B, (belt 8). The dimensions of the wrapping paper W include, in the winding direction of the original fabric Z, the length at which the overlapping portion occurs by going around the original fabric Z at least once;
With respect to the axial direction of the original fabric Z, the length is approximately the sum of the axial dimension of the original fabric B plus the diameter dimension.

When the wrapping paper W is fed between the web Z and the support roller 3B, the wrapping paper W is sent out to the other support roller 3A side by the rotation of the web Z and the belt 8. Then, the leading end of the wrapping paper W sent out from the support roller 3A side is
It enters inside the original fabric holding member 30 attached so as to surround it. The original web Z is rotating, and the original web holding member 3
0 is roller 31 31. . . and has extremely low friction, the wrapping paper W is wound around the web Z while being guided by the web holding member 30.

Here, if the outer diameter of the original fabric Z is large, as shown in FIG. There is a concern that the delivered wrapping paper W may not be able to enter the inside of the web holding member 30 along the outer periphery of the web Z. If the air is blown out, the leading end of the wrapping paper W sent out from the support roller 3A is attached to the outer peripheral surface of the web Z, so that it can smoothly enter the inside of the web holding member 30.

An adhesive is applied in advance to the rear end of the upper surface of the wrapping paper W, and when the wrapping paper W has made one revolution as described above, the original fabric Z
The wrapped wrapping paper W is fixed, thereby completing wrapping around the body.

Thereafter, as shown in FIG. 6, the motor 5 is stopped to stop the rotation of the web Z, and at the same time, the telescopic rods 2 and Oa of the air cylinder 20 are made taller and the opening/closing members 15A and 1
5B moves upwards, that is, spreads his legs. Then, if the telescopic rod 12a of the air cylinder 12 is retracted, the support roller 3B will move so as to tilt downward,
Accordingly, the feed plate 11 also becomes downwardly inclined. Therefore, the original roll Z that has been wrapped around the wrapping paper W is transferred to the support roller 3A.
.

3B, rolls on the feed plate 11, and is sent to a next process device such as a gathering device.

According to the original fabric packaging device 1, the wrapping paper W for the original fabric Z
It goes without saying that winding can be performed reliably regardless of the size of the outer diameter of the fabric, and since the fabric holding member 30 is of a fixed type, the mechanism can be greatly simplified.

Moreover, the original fabric holding member 30 not only has an extremely simple tensioning route, but also does not run itself, and when the opening/closing members 15Δ, 15B are opened/closed, one of the opening/closing members 15B is Since it slides only on two places, the free end 15b and the bent part 15b'', the operating resistance is extremely small. Therefore, it can cope with the fast movement of the opening/closing member 15A15B, increasing the processing speed. At the same time, the durability of the web support member 30 itself is greatly improved, and the effort of maintenance etc. can be eliminated as much as possible.

In addition, in this way, the function of the original fabric holding member 30 is simplified,
By simplifying the mechanism involved, the overall cost can be reduced, and the reliability of the entire device can be greatly improved.

In addition, in the above embodiment, the original fabric holding member 30 is a roller belt composed of a large number of rollers 31.
Due to the influence of static electricity, the wrapping paper W is wound around the rotating web Z so that it automatically sticks to the web holding member 3.
It has been confirmed through experiments that, for example, a tape-shaped friction reducing material 90 made of commercially available synthetic resin is sufficient as the material.

It goes without saying that the opening/closing mechanism for operating the opening/closing members 15A, 1.5B or the air cylinder 12.20 is not limited to that of the above embodiment, and may be operated by other link mechanisms, cam mechanisms, gear mechanisms, etc. Alternatively, the air cylinder 1.
2 and 2.0 can also be constructed using other actuators or screw mechanisms.

Further, the series of operations of each member explained in the operation of the above embodiments is naturally executed automatically by a sequence circuit or the like.

〔Effect of the invention〕

As explained above, according to the fabric packaging device of the present invention, wrapping paper can be reliably wrapped around the fabric regardless of the size of the fabric's outer diameter, and the fabric holding section can be fixed. Therefore, the mechanism can be greatly simplified. Moreover, the tensioning path of the web holding member is extremely simple and the operating resistance is extremely low, so it can respond to the fast movement of the opening/closing member, and it is possible to control the processing speed. The durability of the anti-support member itself is greatly improved, and together with the simplification of the mechanism, the reliability of the entire device against breakdowns is improved, and the overall cost is reduced. It has excellent effects.

[Brief explanation of the drawing]

Fig. 1 is an overall side view showing a fabric packaging device according to an embodiment of the present invention, Fig. 2 is a front view thereof, and Figs. 3 to 6 each show the operation of the fabric packaging device according to this embodiment. The schematic side view, FIG. 7, and FIG. 8 are both side views showing a conventional device. Z...Original fabric, W...Wrapping paper, L...
... Original fabric packaging device, 3 A, 3 B ... Support roller 5 ...
・・Motor (drive source), 15A 15B ・・
. . . Opening/closing member, 15 a, I 5 b - free end, 27 . . . Winding device, 1 2 0 . . . Original fabric holding member.

Claims (1)

[Scope of Claims] An original fabric packaging device for wrapping wrapping paper around an original fabric in advance in a roll shape when packaging the original fabric, comprising: a support roller that supports the original fabric rotatably around an axis; a drive source that applies rotational force to the support roller to rotate the original fabric placed on the support roller; and a drive source that is provided in a pair above the support roller and placed on the support roller. An opening/closing member configured to be able to open and close freely so as to surround the raw fabric from both sides in the radial direction, and a winding formed in the shape of a flexible band with at least one surface having a low friction surface and having a tension adjustment function at the base end. The sheet holding member is connected to the take-up device and has its other end fixed to the free end of one of the opening/closing members via the free end of the other opening/closing member. Original fabric packaging equipment.