JP6321536B2 - Corrugated sheet joining device - Google Patents

Description

  The present invention relates to an apparatus for forming a continuous sheet by successively joining cardboard sheets cut to a certain size and feeding the continuous sheet to a caser.

  In recent years, it has become common to order and purchase various products via the Internet, and as a result, mail orderers who have received orders can ship products of various sizes and shapes in boxes and send them to consumers. Become. At that time, if various types of boxes according to the size and shape of the product are manufactured and stored in advance, the management of the boxes and the packing for each type require a great deal of cost.

  As countermeasures, for example, as described in Patent Document 1 below, a dimension reading device that measures the dimensions of a product to be packed, an integrated processing device that collects and processes various information such as the read data, and a corrugated cardboard sheet A packaging system comprising: a supply unit that supplies a sheet, and a caser that folds, cuts, and pastes the supplied cardboard sheet according to the dimensions of the product to form a blank and assembles the blank to wrap the product Can be considered.

  In this packaging system, a continuous sheet of corrugated cardboard is fed while being folded from a state of being folded in a bellows shape along a fold line in the width direction. The supply form of such a material is caused by the fact that a normal double-sided corrugated cardboard with liners bonded to both sides of a corrugated core cannot be rolled into a roll, but a continuous sheet of corrugated cardboard folded in a bellows shape is Must be specially manufactured.

  A single-sided cardboard sheet with a liner attached only to one side of the corrugated core can be rolled into a roll. There is also a packaging system. However, the supply of single-sided corrugated cardboard sheets by rolls is also not very common, and this may cause operators to hesitate to introduce a packaging system.

US Pat. No. 7,647,752

  In view of the above situation, if a normal double-sided corrugated cardboard sheet cut to a certain size can be used as a material, the possibility that the packaging system will be introduced to many businesses increases.

  Accordingly, the present invention is intended to provide an apparatus that enables the corrugated cardboard sheets cut to a certain size to be sequentially connected and made into a box according to the size of the product using this as a material.

  In order to solve the problems as described above, the present invention provides a corrugated cardboard cut to a certain size as a device for feeding a continuous sheet of material to a caser that forms a box according to the size of the product and packs the product. A feeding unit that feeds sheets one by one from the stacked state, and a corrugated sheet fed from the side by the feeding unit is fed sequentially from the upstream side to the downstream side to form a continuous sheet, and the continuous sheet to the caser A cardboard sheet splicing device comprising a splicing line to feed in was constructed.

  The supply unit includes a crushing mechanism that crushes each end of the corrugated cardboard sheet in the thickness direction from the opposite surfaces to form a corrugated part as the cardboard sheet is fed to the side. Following this, an adhesive application mechanism for applying an adhesive to the concave surface of at least one of the corrugated portions of the corrugated cardboard sheet is provided.

  In addition, the concavity line abuts the crushed portion on the rear end side of the corrugated cardboard sheet conveyed downstream and the crushed portion on the front end side of the corrugated cardboard sheet supplied upstream. It was equipped with a press mechanism that pressed in a superposed state.

  In the joining apparatus for corrugated cardboard sheets according to the present invention, normal double-faced corrugated cardboard sheets cut to a certain size can be efficiently joined together to form a continuous sheet. The case can be packaged by forming a box according to the dimensions of the product by the caser fed with the continuous sheet without the thickness becoming too large.

Overall perspective view of a packaging system mainly comprising a caser to which a cardboard sheet joining device according to the present invention is connected The perspective view which shows the structure of the joining apparatus of a corrugated cardboard sheet same as the above The perspective view which shows the collapsing process by the collapsing mechanism of the rear end side of a corrugated cardboard sheet same as the above The perspective view which shows the collapsing process by the collapsing mechanism of the front end side of a corrugated board sheet same as the above. The perspective view which shows the adhesive agent application process by an adhesive agent application mechanism same as the above. The perspective view which shows the supply process of the corrugated board sheet from the supply part same as the above to the joining line The perspective view which shows the superimposition process of the collapsing parts of a corrugated-cardboard sheet same as the above. The perspective view which shows the press process of the crushing parts by the press mechanism same as the above.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in FIG. 1, this splicing device 1 is connected to the upstream side of the caser 20 and becomes an element of the packaging system, and is stocked by stacking rectangular corrugated cardboard sheets S cut to a certain size. A continuous sheet C is formed by successively joining together a feeding unit 2 that feeds one sheet at a time from the state and a corrugated sheet S fed from the side by the feeding unit 2 from the upstream side to the downstream side. The connecting line 3 is fed to the caser 20.

  The supply unit 2 is provided on the left and right of the joining line 3 and is operated alternately so that it is not necessary to stop the packing system when the cardboard sheet S is replenished.

  As shown in FIG. 2, the supply unit 2 is provided with an elevating magazine 4 for stacking cardboard sheets S on the top board, and sucks only one of the stacked cardboard sheets S that overlaps the top. An adsorbing body 5 to be lifted up is provided above the magazine 4. The top plate of the magazine 4 rises as the cardboard sheets S decrease so that the upper surface of the stacked cardboard sheets S has a certain height.

  Further, the supply unit 2 is provided with corrugation mechanisms 6 corresponding to the rear end portion and the front end portion of the corrugated cardboard sheet S which are upstream and downstream with respect to the feeding direction of the joining line 3. The crushing mechanism 6 is composed of a narrow pressing roll 6a and a wide pressure receiving roll 6b, and the corrugated cardboard sheet S lifted by the adsorbent 5 between the pressing roll 6a and the pressure receiving roll 6b with the rotation thereof. The end portion of the corrugated cardboard sheet S is crushed in the thickness direction while being sandwiched and fed.

  Here, as shown in FIG. 3, the crushing mechanism 6 that crushes the rear end portion of the corrugated cardboard sheet S includes a pressing roll 6a disposed above and a pressure receiving roll 6b disposed below, and the corrugated sheet S is disposed on the pressing roll 6a. Is pressed against the pressure receiving roll 6b from above, and the step of the core of the corrugated cardboard is crushed, thereby reducing the thickness of the corrugated cardboard sheet S and forming a crushed portion m in which the upper surface side of the corrugated cardboard sheet S is recessed.

  As shown in FIG. 4, the crushing mechanism 6 that crushes the front end portion of the corrugated cardboard sheet S has a pressing roll 6a disposed below and a pressure receiving roll 6b disposed above, and the corrugated sheet S is moved downward by the pressing roll 6a. Is pressed against the pressure receiving roll 6b and the core step of the corrugated cardboard is crushed, thereby reducing the thickness of the corrugated cardboard sheet S and forming a crushed portion n in which the lower surface side of the corrugated cardboard sheet S is recessed.

  Further, as shown in FIG. 5, hot melt adhesive g is sprayed to the concave portion of the stepped portion m, following the stepping mechanism 6 that crushes the rear end portion of the cardboard sheet S. The nozzle of the adhesive application mechanism 7 to apply is provided.

  As shown in FIG. 6, the corrugated cardboard sheet S is formed with the concave surface of the stepped portion m on the upper surface of the rear end portion, and the adhesive g is applied to the concave surface, and the lower surface of the front end portion is formed. In this state, the concave surface of the stepped portion n is formed and supplied to the joining line 3 from the side. Along with this, the corrugated cardboard sheet S that has been subjected to the same processing is sent downstream along the joining line 3, and the later processed corrugated cardboard sheet S is put on the joining line 3 so as to cover the upper side thereof. enter in.

  The joining line 3 is provided with a press mechanism 8 having an elevating press bar so as to extend in a direction crossing the feeding direction of the cardboard sheet S. As shown in FIG. Corrugated cardboard sheet S completes entry into joining line 3, and the previously processed cardboard sheet S is sent to the downstream side of joining line 3, and its corrugated portion m is later processed into corrugated cardboard sheet S. When reaching below the stepped portion n, the press bar of the press mechanism 8 is lowered.

  As a result, as shown in FIG. 8, the stepped portion m located on the rear end side of the previously processed cardboard sheet S and the stepped portion n located on the front end side of the later processed cardboard sheet S Pressing is performed in an overlapping state, and the stepped portions m and n are joined together by an adhesive g.

  And by performing such a process continuously, the corrugated cardboard sheet | seat S is spliced sequentially, the continuous sheet | seat C is formed, and the continuous sheet | seat C is sent into the caser 20, as shown in FIG.

  The caser 20 has a ruled part 21 for forming a crease line in the continuous sheet C, a cutting part 22 for forming a blank by grooving and cutting, and a glue for applying a hot melt adhesive to a predetermined position of the blank. Part 23, a preliminary folding part 24 for preliminarily folding the blank along the ruled line, and a product input part 25 for supplying the product on the blank mounting surface are sequentially provided on the extension line of the joining line 3, and the product input part 25 The product delivery line 26 is connected to the.

  Further, on the downstream side of the product input unit 25 in which the blank feeding direction is changed by 90 °, the caser 27 has a box part 27 which is a box whose upper surface is opened by bending the blank so as to surround the periphery of the product, A form input unit 28 for inputting forms such as slips and instructions into the box, and a sealing unit 29 for bending and sealing the lid of the box are sequentially provided.

  Then, on the downstream side of the caser 20 in this packing system, a label sticking machine 30 for attaching a shipping label to the surface of the lid of the box discharged from the caser 20, and a box in which products have been packed are appropriately sorted and discharged. A box discharging device 31 having a conveyor is sequentially provided.

  In the packaging system mainly composed of the caser 20 to which the corrugated sheet joining device 1 is connected as described above, a normal double-sided corrugated cardboard sheet S cut to a certain size is efficiently spliced to obtain a continuous sheet C The thickness of the joint part between the corrugated cardboard sheets S is not so large, and the caser 20 fed with the continuous sheet C forms a box according to the dimensions of the product, Can be packed.

  In the embodiment of the joining device 1, a stepped portion m having a concave upper surface is formed on the rear end side of the cardboard sheet S fed from the supply unit 2 to the joining line 3, and the lower surface is concave on the front end side. However, the positional relationship between the pressing roll 6a and the pressure receiving roll 6b of the crushing mechanism 6 is reversed, and the front-rear relationship of the crushing parts m and n in the cardboard sheet S is illustrated. May be reversed.

  In this case, it is necessary to change the position of the adhesive application mechanism 7 and to reverse the vertical relationship when the previously processed corrugated sheet S and the corrugated portions m, n of the corrugated sheet S processed later are overlapped. is there.

DESCRIPTION OF SYMBOLS 1 Joining device 2 Supply part 3 Joining line 4 Magazine 5 Adsorbent body 6 Corrosion mechanism 6a Press roll 6b Pressure receiving roll 7 Adhesive application mechanism 8 Press mechanism 20 Caser 21 Ruled part 22 Cutting part 23 Gluing part 24 Pre-folding part 25 Product input unit 26 Product infeed line 27 Lift box unit 28 Form input unit 29 Sealing unit 30 Label applicator 31 Box discharge device C Continuous sheet S Corrugated cardboard sheet g Adhesive m, n

Claims (1)

Cardboard sheets (S) cut to a certain size are sequentially spliced to a caser (20) that forms a box according to the dimensions of the product and packs the products, and the cardboard sheets are fed together as a continuous sheet (C). Combined device (1),
The supply unit (2) for supplying the cardboard sheets (S) one by one from the stacked state, and the cardboard sheets (S) supplied from the side by the supply unit (2) are sequentially spliced while being sent from the upstream side to the downstream side. Together it forms a continuous sheet (C) and consists of a joining line (3) that feeds into the caser (20),
In the supply part (2), along with the sideward feeding of the corrugated cardboard sheet (S), each end part of the corrugated cardboard sheet (S) is crushed in the thickness direction from the opposite surfaces, respectively, and the corrugated part (m, n) forming a crushing mechanism (6), followed by an adhesive application mechanism for applying an adhesive to the concave surface of at least one crushing portion (m, n) of the corrugated cardboard sheet (S) ( 7)
The joining line (3) includes a crushed portion (m) on the rear end side of the corrugated cardboard sheet (S) conveyed to the downstream side and a crushed portion on the front end side of the corrugated cardboard sheet (S) supplied to the upstream side. A corrugated cardboard joining device, comprising: a pressing mechanism (8) that presses (n) in a state where the concave surfaces are in contact with each other so as to contact each other.

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