WO2013084602A1

WO2013084602A1 - Refuse removal apparatus

Info

Publication number: WO2013084602A1
Application number: PCT/JP2012/077079
Authority: WO
Inventors: 柳本　忠二
Original assignee: 株式会社レザック
Priority date: 2011-12-07
Filing date: 2012-10-19
Publication date: 2013-06-13
Also published as: JP6021810B2; JPWO2013084602A1

Abstract

Provided is a refuse removal apparatus of excellent work efficiency. This refuse removal apparatus separates a refuse section and a product section from a punch-out sheet on which a plurality of product sections are disposed. This refuse removal apparatus is provided with a punch-out device for separating the product section and the refuse section by an operation for lowering and raising a plurality of punch-out pins aligned with an upper position and lower position of the punch-out sheet, and a sheet supply device for supplying the punch-out sheet to the punch-out device. The sheet supply device has a plurality of endlessly connected sheet loading units.

Description

Waste removal device

The present invention relates to a scrap removing device.

In the production of cigarette paper boxes (cases) and candy / caramel paper boxes (cases), first, a plurality of product parts (case Development part) is formed, and the product part is punched from the punched sheet by pressing a large number of pins, and the product part and the waste part are separated. Typically, the scrap removing device used for separating the product portion and the waste portion from the upper die in which a large number of pin holes are arranged in a matrix form is compared with the lower die on which the sheet to be punched is placed. It is configured to be driven up and down, leaving only the pins at the position corresponding to the dregs part of the sheet to be punched in the upper die, and by performing a press-type pushing operation with respect to the dregs part with those pins, The waste part is separated and removed from the product part.

FIG. 4 is a schematic perspective view for explaining a conventional scrap removing device, and FIGS. 5A to 5D are schematic views for explaining supply, punching and unloading operations of a sheet to be punched in the conventional scrap removing device. It is sectional drawing. In the conventional scrap removing device 500, as shown in FIG. 5A, a plurality of punched sheets 570 are conveyed to the punching device 510 from the front of the scrap removing device by the sheet feeding device 530, and Place it at the position corresponding to the product pin of the mold. Next, as shown in FIG. 5 (b), the upper die of the punching device and the waste do not interfere with the product portion by lowering the upper die of the punching device so that the upper die and the lower die are relatively close to each other. The waste portion 572 of the punched sheet 570 is separated from the product portion 571 by the cooperation of the lower product portion pins that do not interfere with the portion. Here, when the upper die is raised, only the product portion 571 is arranged on the lower portion product portion pin. Here, as shown in FIG. 5C, after the comb conveyor of the carry-out device 550 advances in the direction of arrow A from the rear of the device and scoops up the product part, as shown in FIG. Back in the direction, the product portion 571 is carried out to a predetermined position. On the other hand, as shown in FIG. 5 (c), the residue portion 572 placed on the table portion is transferred to a remaining material place (not shown) by the sheet feeding device after the product portion is unloaded. Specifically, the elevating unit is raised to lift the dregs part, the table part of the sheet feeding apparatus is advanced to the punching work position, the dregs part is placed (scooped up) or sandwiched, and the table part is retreated, and the dregs part To the remaining material storage area.

The scrap removal device having the above-described punched sheet automatic supply function and product part automatic carry-out function is significantly superior in work efficiency compared to placing the punched sheet manually and taking out the product part. Have However, there is a strong demand for further improvement in work efficiency.

Japanese Patent No. 3459242

The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a scrap removing device having extremely excellent work efficiency.

The waste removal device of the present invention is a waste removal device that separates a product portion and a waste portion from a punched sheet on which a plurality of product portions are arranged. The scrap removing device includes a punching device that separates the product portion and the scrap portion by lowering and raising operations of a number of punching pins aligned at an upper position and a lower position of the punched sheet, and the punching device. And a sheet supply device for supplying the punched sheet. The sheet supply apparatus has a plurality of sheet placement units connected endlessly.
In a preferred embodiment,
The sheet feeding device is a conveyor, and the sheet placing unit has a blanking pin so that a punching pin at a position corresponding to the product portion among a plurality of punching pins aligned at the lower position contacts the product portion. A hole is formed.
In a preferred embodiment, the waste removal device further includes a carry-out device that carries out the product portion that is punched out of the punched sheet and placed on the punch pin at the lower position, and the carry-out direction of the carry-out device And the feeding direction of the sheet feeding device are substantially perpendicular to each other.

According to the waste removing device of the present invention, it is possible to realize very excellent work efficiency by adopting a sheet supply device having a plurality of endlessly connected sheet placing units. In a preferred embodiment, the work efficiency can be further improved by configuring the carry-out direction of the carry-out device and the supply direction of the sheet supply device to be substantially orthogonal.

It is a schematic perspective view explaining the whole waste removal apparatus of this invention. It is a schematic sectional drawing explaining the state before stamping seen from the direction of arrow AB of the dregs removal apparatus of FIG. It is a schematic sectional drawing explaining the state after a punching seen from the direction of arrow AB of the residue removal apparatus of FIG. It is a schematic sectional drawing explaining the state before punching seen from the direction of arrow CD of the dregs removal apparatus of FIG. It is a schematic sectional drawing explaining the state after a punching seen from the direction of arrow CD of the dregs removal apparatus of FIG. It is the schematic which shows an example of the sheet | seat for to-be-punched. It is a schematic perspective view of the conventional waste removal apparatus. It is a schematic sectional drawing explaining supply of the sheet | seat for punching in the conventional waste removal apparatus, punching, and carrying-out operation.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these specific embodiments.

FIG. 1 is a schematic perspective view for explaining an entire waste removing device of the present invention. FIG. 2A is a schematic cross-sectional view illustrating a state before punching, as viewed from a direction orthogonal to the punched sheet supply direction (direction of arrow AB) of the scrap removing device of FIG. 1. 2B is a schematic cross-sectional view illustrating a state after punching, as viewed from a direction (direction of arrow AB) perpendicular to the punched sheet supply direction of the scrap removing device of FIG. FIG. 2C is a schematic cross-sectional view illustrating a state before punching, as viewed from the punched sheet supply direction (the direction of arrow CD) of the scrap removing device of FIG. 1. 2D is a schematic cross-sectional view illustrating a state after punching, as viewed from the punched sheet supply direction (in the direction of arrow CD) of the scrap removing device of FIG. 1. For ease of viewing, the scales of the drawings may differ from actual ones, and the scales of the respective drawings may not be unified. The scrap removing device 100 includes a punching device 10 and a sheet supply device 30. The punching device 10 is configured to move the product portion by lowering and raising operations of a number of punching pins aligned at the upper position and the lower position of the sheet to be punched on which a plurality of product portions (and the waste portions other than the product portion) are arranged. And the waste part are separated. The sheet supply device 30 supplies a punched sheet to the punching device 10. Preferably, the scrap removing device 100 may further include a carry-out device 50. The unloading device 50 unloads the product portion that is punched from the punched sheet and placed on the punching pin at the lower position. Hereinafter, the basic configuration of the punching apparatus will be described, and then the sheet feeding apparatus, which is one of the characteristic parts of the present invention, will be described. The carry-out device will be described as needed at appropriate points in the description of the punching device and / or the sheet feeding device.

The punching device 10 can be moved up and down and fixed to the upper mold pin 13 held so as to be vertically movable and fixed to the upper mold 11 located above the punched sheet 70 and to the lower mold 12 located below the sheet to be punched. And a lower die pin 14 held by the The upper mold 11 and the lower mold 12 are guided by

guide rods

15 and 16, respectively, and are driven up and down by a drive device (not shown). The punching device 10 separates the product portion 71 and the residue portion 72 of the punched sheet 70 as shown in FIG. 3 by pressing the upper die pin 13 and the lower die pin 14 by raising and lowering the upper die 11 and the lower die 12. To do. Further, the punching device 10 includes a first template 17 and a second template 18. The first template 17 has a template main body corresponding to the product part 71 and a hole part corresponding to the residue part 72. The second template 18 has a template main body corresponding to the dregs part and a hole part corresponding to the product part. The first template 17 and the second template 18 are guided by

guide rods

19 and 20, respectively, and are driven up and down relatively with respect to the upper mold 11 and the lower mold 12 by a driving device (not shown).

With such a configuration, by raising the first template 17, the product portion corresponding pin 131 that contacts the template main body corresponding to the product portion 71 of the punched sheet 70 of the upper mold pin 13 is moved to the sheet 70. Together with the interference pin 132 that interferes with the punching line E, it can be moved to the upper retracted position 21, and only the waste portion pin 133 that does not interfere with the product portion 71 can be left at the work position 22 of the upper die 11. That is, the debris portion pin 133 does not interfere with the punching line (boundary line) E shown in FIG. The interference pin 132 is a pin that interferes with the punching line E.

On the other hand, by raising the second template 18, among the lower mold pins 14, the residue portion corresponding pins 141 corresponding to the residue portion 72 of the sheet 70 are moved downward together with the interference pins 142 that interfere with the punching line E of the sheet 10. Only the product part pin 143 that remains in the retracted position 23 and does not interfere with the punching line E is moved to the work position 24 of the lower mold 12 (as an upward protruding shape). 1A and 1B and FIGS. 2A and 2B, the product of the punched sheet 70 is obtained by selectively retracting the interference pin 132 that interferes with the punching line E to the upper retracted position 21. Only the waste part pin 133 that does not interfere with the part 71 can be left at the working position 22 of the upper die 11 and the interference pin 142 that interferes with the punching line E is selectively retracted to the lower retracting position 23. Only the product part pin 143 that does not interfere with the dregs part 72 of the punched sheet 70 can be left at the work position 24 of the lower mold 12. As a result, since the debris portion 72 can be separated and punched from the product portion 71, the debris portion 72 can be efficiently punched and separated and removed without wrinkles on the product portion 71 and with fewer work steps. Can do. The template body of the second template 18 is preferably made slightly smaller than the template body of the first template 17. In other words, the template body of the second template 18 needs to avoid pins that interfere with the punching line E, and thus has a smaller shape (area) than the template body of the first template 17.

As described above, the interference pins 132 and 142 that interfere with both the product portion 71 and the waste portion 72 of the sheet 70 (that is, that interfere with the punching line E) are respectively connected to the upper retreat position 21 and the lower die 12 of the upper die 11. As shown in FIG. 2A, a plurality of sheets 70 are placed on the product part pins 143 in a stacked state under the state of being separated into the lower retreat position 23 of the upper die. If the upper die 11 and the lower die 12 are relatively brought close to each other by lowering or the like, the waste portion pin 133 that does not interfere with the product portion 71 (punching line E) and the waste portion 72 (punching line E) By cooperating with the product part pins 143 that do not interfere with each other, the waste part 72 of the sheet 70 can be separated and removed from the product part 71, and the product part 71 without scratches can be efficiently obtained with few work steps. .

The details of the upper mold 11 and the lower mold 12 are described in, for example, Japanese Patent Application Laid-Open No. 2002-144293, and the description thereof is incorporated herein by reference.

When punching is completed, as shown in FIGS. 2B and 2D, the product part 71 separated from the dregs part 72 is the product part pin 143 at the rising limit position (that is, the working position 24 of the lower mold 12). It is placed on the top. The product unit 71 may be taken out by an operator or carried out by the carry-out device 50. Preferably, the product unit 71 is unloaded by the unloading device 50. Specifically, as shown in FIG. 2D, the product portion 71 is lifted by a carry-out arm 51 formed in a rake shape or a comb shape, and is carried out to the outside. The carry-out arm 51 only needs to be configured to be able to move up and down in the vertical direction as well as in the horizontal direction by using a combination of a hydraulic or pneumatic drive source and an electric drive source, for example. More specifically, after the unloading device 50 inserts the unloading arm 51 in the direction of the arrow F, the unloading device 51 lifts the product unit 71 and finally moves it in the direction opposite to the arrow F, thereby unloading the product unit 71. To do. In the present invention, preferably, the carry-out direction of the carry-out device (the horizontal movement direction of the carry-out arm, that is, the direction along the arrow F) is substantially orthogonal to the sheet supply direction of the sheet supply device. By adopting such a configuration, it is possible to continuously supply the punched sheet and discard the waste part on the conveyor, so that it is possible to realize extremely excellent work efficiency. More specifically, in the conventional waste removing device as shown in FIGS. 4 and 5, after the product portion is collected by the conveying device, the table portion of the sheet feeding device is moved again to the punching position to collect and transfer the waste portion. In addition, the sheet to be punched to be punched next cannot be placed on the table part unless the waste part is transferred to the remaining material storage site. That is, in such an apparatus, it is necessary to sequentially carry out the product part, transfer the waste part, and arrange the next punched sheet, resulting in a very large time loss. On the other hand, according to the above-described configuration of the present invention, the unloading of the product portion, the supply of the punched sheet, and the transfer of the waste portion can be performed without being restricted to each other, so that time loss is greatly reduced. Therefore, it is possible to realize a waste removing device having extremely excellent work efficiency. Specifically, in the conventional apparatus, the takt time (the time from punching out one set of punched sheets to completing the recovery of the product part and the transfer of the waste part) is about 45 seconds, whereas In the waste removing device of the invention, the tact time can be shortened to preferably about 25 seconds, more preferably about 12 seconds to 15 seconds. Thus, it is one of the features of the present invention that the sheet supply direction and the product portion carry-out direction are substantially orthogonal to each other.

As described above, FIG. 3 shows an example of a sheet (sheet to be punched) 70 to be punched. The to-be-punched sheet 70 is cut by a punching die using, for example, a Thomson blade, and a punching line E is already formed at the boundary (shown by a solid line) between the product portion 71 and the residue portion 72. . In FIG. 3, a broken line 73 indicates a bent portion.

Next, the sheet feeding apparatus 30 which is another characteristic part in the present invention will be described. In the present invention, the sheet supply apparatus 30 includes a plurality of sheet placement units 31 connected endlessly. Typically, the sheet supply device is a conveyor. In one embodiment, the sheet feeding device is a slat conveyor having a chain 33 wound around a sprocket (four sprockets in the illustrated example) 32 and a plurality of slats 31 attached to the chain 33. In this case, each slat 31 is a sheet placing unit. As shown in the figure, the slat 31 is typically configured to be bendable and can be conveyed on an endless chain. Furthermore, the slat 31 is typically detachably attached to the chain 32. Specifically, as shown in FIG. 2C, the slat 31 is attached to the chain 32 by a chucking pin 34 that protrudes from the inside of the chain. The chucking pin 34 is slidable in the inner and outer directions of the chain by any appropriate mechanism (for example, a double-action system). Further, the slat 31 is formed with a pin hole 34 into which a slat detachment / chain redrive confirmation pin 26 provided in the lower lifting unit 25 of the punching device is fitted. The driving source of the chucking mechanism is not particularly limited, and examples thereof include pneumatic pressure, hydraulic pressure, and electric power. In another embodiment, the sheet feeding device can be a belt-like conveyor. In this case, the sheet placement unit may be formed at a predetermined position of the belt. When a belt-shaped conveyor is employed as the sheet supply device, punching can be performed by moving the belt-shaped conveyor up and down using any appropriate lifting unit.

Typically, the slat 31 is formed with a hole portion corresponding to the hole portion of the second template 18 (that is, a hole portion corresponding to the product portion). Thereby, only the product part pin 143 among the lower mold pins 14 can be brought into contact with the product part, and as a result, the product part and the waste part can be separated. When a belt-like conveyor is employed as the sheet supply device, such a hole portion may be formed in a sheet placing unit formed at a predetermined position.

The number of slats 31 attached to the chain 33 can be appropriately set according to the purpose. Preferably, at least five slats 31 are attached to the chain. By attaching at least five slats, for example, as shown in FIG. 2A, the sheet to be punched is supplied to the punching position, and the sheet feeding apparatus for the next punched sheet (hereinafter referred to as “second” for convenience). And the transfer of the residue to the remaining material storage site can be performed simultaneously. As a result, it is possible to realize a waste removal device having very excellent work efficiency. Furthermore, by properly designing the number of slats, the length of the slats in the conveying direction, the distance between the slats, the total extension of the chain, the conveying speed of the chain, the size of the punched part of the punching device, etc., without providing positioning means The punching sheet can be arranged at an appropriate position of the punching device. Needless to say, even if such a configuration is adopted, the sheet to be punched may be arranged at an appropriate position of the punching apparatus using any appropriate positioning means.

Hereinafter, an example of an operation method of the debris removal device of the present invention will be described. First, as shown in FIG. 2A, the sheet supply device 30 is fed with a punching sheet 70 by any appropriate means (for example, a swivel conveyor, not shown) provided on one side (right side in the illustrated example) of the sheet supply means 30. It is placed on 30 slats 31. Next, the slat 31 on which the punched sheet 70 is placed is conveyed by the chain 33, and the slat 31 (substantially, the punched sheet 70) is disposed at a predetermined punching position of the punching device 10 to stop the chain. To do. Arrangement of the slats at the punching position is performed by interlocking with any appropriate positioning means and chain driving means. Specifically, for example, when the sensor disposed at a predetermined position senses the slat, or when the slat contacts the stopper disposed at the predetermined position, the chain driving means is stopped. The slat can be placed at a predetermined punching position. Alternatively, as described above, by appropriately designing the number of slats and the like and controlling the conveyance speed and the conveyance time, the slats can be arranged at a predetermined punching position without providing positioning means. In the waste removal device of the present invention, preferably, the second punched sheet 70 is placed on the second slat simultaneously with the supply of the punched sheet 70 to the punching device 10.

Next, the punched sheet 70 placed at the punching position is punched by the punching device 10 to separate the product portion 71 and the residue portion 72 from each other. Specifically, it is as follows. As shown in FIG. 2C, when the slat is disposed at the punching position and the chain stops, the lifting unit 25 of the lower die 12 of the punching device is raised, and the slat detachment / chain redrive confirmation pin 26 is inserted into the pin hole of the slat 31. 34 is inserted. When the insertion is detected, the chucking pin slides outward by the chucking pin operating mechanism (for example, a double-action system), and the slat 31 is detached from the chain. In this state, when the upper die 11 and the lower die 12 are relatively brought close to each other and punched out, the product portion 71 is placed on the product portion pin 143 and the upper die 11 (substantially the cas portion pin). 133) and the elevating unit 25 cause the dregs portion 72 to be pushed down together with the slats 31 to a state as shown in FIG. 2D.

2D, the carry-out arm 51 of the carry-out device 50 is inserted in an arrow F direction substantially orthogonal to the supply direction of the sheet supply device 30. The inserted unloading arm 51 is lifted to lift the product part 71, and finally moved in the direction opposite to the arrow F to unload the product part 71. The product part carried out is used as it is, or is packed or placed on a pallet and transferred to a place of use. After the product unit 71 is carried out by the carry-out device 50, when the elevating unit 25 is raised again and returned to a predetermined position, the chucking pin is slid inward to reattach the slat 31 to the chain 33. Next, the elevating unit 25 is lowered and the slat detachment / chain redrive confirmation pin 26 is removed from the pin hole 34. When it is confirmed that the pin 26 has been pulled out, the chain is driven again, and the slat 31 loaded with only the dregs 72 is conveyed, and is provided on the side opposite to the sheet supply side (left side in the illustrated example) of the sheet supply apparatus. The waste part 72 is transferred to a remaining material storage place (not shown) via a waste part transfer means (for example, a delivery conveyor, not shown). At the same time, the second slat on which the second punched sheet is placed is supplied to the punching position of the punching device, and the third punched sheet is placed on the third slat. The slats to which the waste portion has been transferred finally return to the punched sheet placement position by the endless chain, and are repeatedly used for supplying the punched sheet. Thus, according to the waste removal device of the present invention, it is possible to continuously perform the supply of the sheet to be punched, the separation of the product portion and the waste portion, the carry-out of the product portion and the transfer of the waste portion, The working efficiency is significantly improved as compared with the conventional waste removal device. When the product portion 71 is taken out by an operator, both the product portion 71 and the waste portion 72 are sent to, for example, a transfer conveyor, and after the product portion is taken out by the operator, the waste portion is transferred to a remaining material storage site. Good.

It should be noted that the configuration of the entire scrap removal device can be freely changed in design other than the above-described form, and any appropriate configuration can be adopted. For example, the upper mold pin 11 and the first template 17 and the lower mold pin 12 and the second template 18 may be disposed upside down. That is, the waste part 72 may be carried out by the carry-out device 50 and the product part 71 may be left on the slat.

The waste removal device of the present invention can be suitably used for punching paper container packages such as a cigarette paper box (case) and a candy / caramel paper box (case).

DESCRIPTION OF SYMBOLS 10 Punching device 11 Upper die 12 Lower die 13 Upper die pin 14 Lower die pin 30 Sheet supply device 31 Slat 32 Sprocket 33 Chain 50 Unloading device 51 Unloading arm 70 Sheet for punching 71 Product portion 72 Debris portion 100 Deburring device 133 Debris Part pin 143 Product part pin

Claims

A scrap removing device that separates a product portion and a residue portion from a punched sheet on which a plurality of product portions are disposed,
A punching device that separates the product portion and the waste portion by lowering and raising operations of a plurality of punching pins aligned at an upper position and a lower position of the punched sheet;
A sheet supply device for supplying the punched sheet to the punching device, wherein the sheet supply device has a plurality of sheet placement units connected endlessly.
The sheet feeding device is a conveyor, and a hole is formed in the sheet placing unit so that a punching pin at a position corresponding to the product portion among a plurality of punching pins aligned at the lower position contacts the product portion. The debris removing device according to claim 1, wherein the portion is formed.
The apparatus further comprises a carry-out device for carrying out the product portion punched from the punched sheet and placed on the punching pin at the lower position, wherein a carry-out direction of the carry-out device and a supply direction of the sheet supply device are substantially The debris removing device according to claim 1, which is orthogonal to