FR2654070A1 - PREPARATION LINE STRUCTURE FOR MACHINES FOR PACKAGING PRODUCTS IN CASES OR BOXES. - Google Patents

Abstract

The present invention relates to a preparation line structure for rapid machines for packaging products in cases or boxes of the type with hinged or pivoting cover, with guarantee seal, starting from flat blanks (4). This structure is characterized in that it comprises a toothed belt conveyor (18) provided with a plurality of equidistant suction cups (19), stretched along a channel placed under vacuum (37), forming a endless loop around corresponding toothed wheels (38), one of which is motorized and is driven by an intermittent or step-by-step movement, so as to transport the flat blanks (4), following a rhythmic succession, opposite a plurality of operating stations.

Description

The present invention relates to a preparation line structure for

  fast machines for packaging products in general and in particular in cases or boxes of the type with hinged or pivoting cover, with guarantee seal, starting from flat blanks with multiple component parts. More precisely, the object of the present invention is a structure of a preparation line for the type of rapid product packaging machine in general in cases or boxes of the type with hinged or pivoting cover, with guarantee seal, starting from blanks. planes with multiple constituent parts, the structure of which consists of modular units, operationally independent, interconnected throughout the machine, in an interdependent manner, which gives the possibility, to adapt to variations in the modalities of preparation of the case and / or of the characteristics of the product to be packaged or of the particular structure of the flat blanks with constituent or multiple parts, to replace, in the whole of the machine, one or more of the sections of the machine, such as it is provided for example in the rapid packaging machine which is the subject of the request for

  Italian patent N 03687 A / 89 to the applicant.

  The object of the present invention is more particularly formed by the modular machine section which is provided in the packaging machine described in the aforementioned Italian patent application no. 3687 A / 89, for transporting, following a single succession cadenced, the planar blanks with multiple constituent parts facing a plurality of operating stations for checking their suitability for mounting in the form of boxes or corresponding cases and their preparatory folding in tubular form with at least one end

or head closed.

  The subject of the present invention is therefore a structure for a preparation line for rapid machines for packaging products in general and in particular in cases or boxes of the type with hinged or pivoting cover, with guarantee seal, starting from planar blanks. with multiple component parts the structure of which is

  consisting of independent modular units operational-

  Lement, interconnected throughout the machine, in an interdependent manner characterized in that it comprises a toothed belt conveyor provided with a plurality of suction cups equidistant, stretched along a channel put in depression, forming an endless loop around corresponding toothed wheels, one of which is

  motorized and is driven intermittently or step-by-step

  step, so as to transport the flat blanks, in a sequenced succession, opposite a plurality of operating stations provided respectively with means of control, transport and folding for the preparation of the flat blanks in the tubular form of a case or a hinged lid box with warranty seal, with at least one end

or head closed.

  Another particularly important characteristic of the preparation line according to the invention is that it can have either one or more operating stations giving the possibility of making boxes or cases of the aforementioned type with hinged lid, with guarantee seal, which can be closed on an element forming a collar attached to the flat blank by forming the body-box and the body-cover of the case, by detaching it, for example, in the first place, from the flat blank itself and by reapplying it, in a superimposed arrangement, following a relative movement between the plane blank and the corresponding collar element, in the respective plane of one and / or the other, for the superposition, and in one and / or in

  the other from two opposite directions for application.

  Other characteristics and advantages of the structure of the preparation line for machines for packaging products in general in cases or boxes of the type with hinged cover, with guarantee seal, starting from flat blanks with multiple component parts, depending on the present invention will emerge more clearly

  of the detailed description which follows of a form

  preferred embodiment given only by way of example, with reference to the accompanying drawings in which FIG. 1 is a perspective view of a structure of a preparation line, this view being taken from

  front and top from the operator's point of view.

  FIG. 2 schematically shows, still in a perspective view similar to that of FIG. 1, the structure of the preparation line in its operating steps for the preparation, in tubular form, of the cases or

  packaging boxes, with a guarantee seal.

  Figures 3,4 and 5 are perspective and sectional views, on a larger scale, of details relating to the movement of the blanks along the structure of the line of

preparation.

  FIG. 6 shows the structure of a planar blank with multiple constituent parts, usable in the structure of the preparation line according to FIGS. 1 and 2, for the preparation, in tubular form, of the blanks with the aim of obtaining cases or collar boxes for a lid

with warranty seal.

  As indicated above, the final object of the present invention is to provide a preparation line structure for machines with modular units making it possible to package products in general in cases or boxes of the type with hinged or pivoting lid, capable of preferably be closed on a collar with a guarantee seal, starting from individual blanks with parts

  multiple components defined by break lines.

  Essentially an individual flat cardboard blank, with multiple component parts, consists of a plurality of flaps and preparation flaps defined by lines of

  longitudinal and transverse folding and by cuts.

  These flaps and flaps are intended to essentially constitute the box body and the cover body. The blank also has breaking lines of a separable part intended to constitute the element respectively.

  forming a collar and a guarantee seal for the body-

  cover (see for example the Italian patent application

  N 03577 A / 87 filed on July 29, 1987 by the plaintiff).

  In the example shown in the accompanying drawings of the preparation line structure for packaging machines of the type with modular machine sections, indicated by the references 1,2 and 3 (see FIG. 1), the subject of Italian patent application No. 3687 A / 89 of the applicant, a flat cardboard blank with multiple constituent parts is used, indicated as a whole by the reference 4 (see in particular FIG. 6) In this blank are defined, at means of longitudinal fold lines 5, transverse 6 and cutouts 7, side flaps 8, 9, 10 and 11 and mounting and closing flaps 8 a, 8 b; 9 a, 9 b; l Oa, l Ob and lla, llb and lic of the case The blank is also provided, for the aforementioned reasons which will emerge more clearly from what follows, with breaking lines among which that which is indicated by the reference 12, defines the part intended to constitute the collar element 13 and that which is indicated by the reference 14, is intended to constitute the seal with guarantee band between the

body-cover and body-box.

  Such a planar blank 4 is supplied, in the preparation line structure which is the subject of the present invention, from the first section of machine 1, for example by means of the aforementioned supply device which is the subject of the request. Italian Patent No. Q 3688 A / 89 to the Applicant, and

  this blank is supplied to the second section of machine 2, that is

  i.e. to the preparation line structure, for the preparation, from this blank, of the case in tubular form In this tubular form the case coming from the second section of machine 2 is transferred to the third section of machine 3 for introducing the product to be packaged into this case and for closing the case with the

warranty seal.

  As described in the aforementioned Italian patent application N 03688 A / 89 of the applicant, the planar blanks 4 joined, placed on edge in a store 15 with large storage capacity, inclined upstream downstream and top to bottom, are, first, advanced in groups, under an order, by a separator assembly indicated by the reference 16 (see in particular Figure 2 of Italian patent application N 03688 A / 89) so as to relieve the load of the entire column of accumulated blanks The blanks are then removed, from such groups, in a single succession, by suction cups 17 and they are deposited one after the other, according to an arrangement horizontal plane, on means of transport 1 of the endless type, provided with gripping means 19 (see in particular FIG. 5), these means being better explained below and forming the second section of machine 2 which is the subject of this request patent (see also Figure 2) The conveyor 18 is animated by an intermittent or step-by-step movement, that is to say a forward movement followed by a stop for the operations of control and folding for

  the preparation of the blanks 4 in the form of cases.

  Each stop corresponds to an operating station and for this purpose the position in which the planar blanks 4 are deposited on the conveyor 18, is defined as being the first station IO When advancing a next step of the conveyor 18 the blank 4 received at station I happens to be advanced to the place of a second station II (not shown) where, by known means not shown, its integrity is checked or at least its fitness for use for its preparation in the form of a case, or even still by known means not shown, this blank is rejected and replaced by an appropriate blank During the next step the blank 4 is brought to the place of a third inactive station III downstream of which and in front of a fourth station IV is arranged a photoelectric cell 20 (see FIG. 1) for reasons explained below. Then, during a following step, the blank 4 is moved from station III to the station IV o, by means of an articulated quadrilateral assembly, indicated as a whole by the reference 21 (always see FIG. 1), and following the detection of the presence, by the photoelectric cell 20, of this same blank 4, the constituent part 13 of this blank which is intended to constitute the collar of the case being prepared, is detached along the rupture line 12 This constituent part 13 is reapplied again, as a result of a relative movement between the part 13 constituting the collar and the part constituting the blank 4 proper, with a spray of glue by means of a gluing device 22 (see FIG. 2) controlled by the photoelectric cell 20, on the part constituting the blank 4 , along the breaking side provided for the detachment of the part constituting the collar 13 During the step following the blank 4, thus provided with the collar 13, is advanced from station IV to station VO o, by means of counterpart means 23 and m folding means 24 and 25 (see in particular Figure 2), which are driven in an alternating vertical movement, are folded vertically upwards the flaps 9 and 8 and 11 as well as the mounting flap llc, together with the flaps partners 9 a, 9 b; 8 a, 8 b and lla, llb, around the respective longitudinal fold lines 5 (see FIG. 2) After a step along the blank 4, provided with the collar 13, thus folded up, is transported to station VI passing with its flap 10 and its flaps 1 Oa, lob associated below a counterpart mandrel 26, the flaps 9,8,11 and the mounting flap llc, with the associated flaps 9 a, 9 b; 8 a, 8 b and lla, llb being held in a vertical position, by guide means 27, against the longitudinal sides of the counterpart mandrel 26 (see FIGS. 1 and 2) In this station VI (see FIGS. 1 and 2) , following the detection, by means of a photoelectric cell 28, of the presence of the blank 4, provided with the corresponding part forming a collar 13, during preparation, glue is sprayed, via gluing means 29 slaved to the photocell 28, on the external surface of the mounting flap llc Then this mounting flap, thus provided with adhesive, is folded over the upper face of the counterpart mandrel 26 (see position a in FIG. 2), by means of folding means 30 in the form of a comb, while the flap 8 is folded, by means of an articulated quadrilateral folding assembly, indicated by the reference 31 in the figure 1, against the upper face of the counterpart mandrel 26 on the which is in support of the mounting flap llc (position b of station VI "), and it is thus held by a pressing element 32 with vertical movement

  alternative (position c of station VI in Figure 2).

  After the next step of the conveyor belt 18, the case being prepared, thus folded in tubular form in station VI, is brought to station VII o, by means of vertical reciprocating movement, indicated in their together by the reference 33 (see Figures 1 and 2), it is transferred, being held by suction, to an endless conveyor 34 which, in combination with another conveyor 35 located vertically below it (see Figure 1 ), constitutes

the third machine section 3.

  In Figure 3 is shown the motorization of the toothed conveyor belt 18 provided with suction cups 19 materialized by a large suction hollow 36 (see Figures 3 and 5) The belt 18 which is stretched along a channel 37 set depression, above a median longitudinal opening 37 a (see also FIG. 4), forms an endless loop passing around toothed wheels in a corresponding manner one of which 38 is motorized and driven by an intermittent movement De in this way each of the suction cups with a large hollow, made suction, and the associated blank 4 are brought successively, step by step, from the first operating station to the seventh operating station which are

  indicated respectively by the references IO to VII.

Claims (3)

  1. Structure of a preparation line for rapid machines for packaging products in general and in particular in cases or boxes of the type with hinged or pivoting cover, with guarantee seal, starting from flat blanks (4) with multiple component parts , the structure of which consists of modular units (1,2,3) which are operationally independent, interconnected throughout the machine, in an interdependent manner, characterized in that it comprises a toothed belt conveyor ( 18) provided with a plurality of equidistant suction cups (19), stretched along a depression channel (37), forming an endless loop around corresponding toothed wheels (38) one of which is   motorized and is driven intermittently or step-by-step   step, so as to transport the planar blanks (4), in a sequenced succession, facing a plurality of operating stations (I - VII) provided respectively with means of control, transport and folding for the preparation of planar blanks (4) in the tubular form of a case or box with hinged lid and guarantee seal, with at least   minus one end or closed head.   2. Structure of preparation line according to claim 1 characterized in that the suction cups (19) of the conveyor belt (18) consist of recesses   important (36) formed in the belt (18) itself.   3. Structure of preparation line according to one   any one of claims 1 and 2 characterized in that   the surface of the vacuum channel (37) on which slides, being guided and tensioned, the conveyor belt il (18) with suction cups (19) formed by large recesses (36), is provided with a longitudinal opening (37 a) being   in the intermediate position in the transverse direction.