JP7089795B2 - Scrap removal device - Google Patents

Description

The present invention relates to a scrap removing device.

Conventionally, in the production of packaging boxes such as paper containers, cardboard boxes or resin film boxes, by cutting the unfolded shape of the packaging box into the sheet with a band blade, multiple product parts are formed and a large number of pins are pressed. A scrap removing device for separating a product part and a waste part is known. In order to separate the product part and the residue part with high accuracy, it is important to position the sheet on the mounting table.

In recent years, the seat positioning work on the mounting table may be performed manually. Specifically, the worker is performing the work of contacting the sheet with the paper pad which is the reference of the punching position.

In some cases, the seat positioning work on the mounting table is performed by a machine. Such techniques are disclosed, for example, in JP-A-09-123096 (Patent Document 1) and JP-A-2010-247291 (Patent Document 2). Patent Document 1 discloses a transport mechanism in which a sheet is fixed by a gripper or the like and the gripper is sent out by a ball screw or the like. Patent Document 2 discloses a mechanism for providing a position correction means in the transport process and adjusting the misalignment during the transport process.

Japanese Unexamined Patent Publication No. 09-12309 Japanese Unexamined Patent Publication No. 2010-247291

If the sheet is manually positioned, it may not be possible to perform the accurate positioning depending on the maturity of the operator, the material of the sheet, and the like. Further, when the mechanisms of Patent Documents 1 and 2 are used, the equipment is complicated and it is difficult to position the sheet with high accuracy.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a scrap removing device capable of positioning a sheet with high accuracy with a simple configuration.

The scrap removing device according to one aspect of the present invention is a mounting means for mounting a sheet composed of a product portion and a scrap portion, and positioning on the mounting means for determining the positions of the sheet in the X-axis direction and the Y-axis direction. The means and the scrap removing means for separating the scrap portion from the sheet and taking out the product portion are provided, and the positioning means is brought into contact with the side surface of the sheet in order to define the positions of the sheet in the X-axis direction and the Y-axis direction. It is provided with a contact portion that is movably provided at a position and a push portion that moves the sheet to a position where it abuts on the contact portion.

Preferably, the seat is further provided with a push-up portion for floating the portion of the sheet with which the push portion abuts from the mounting means.

Preferably, the push portion has a substantially L-shaped side view, and is inserted between the side contact portion that abuts on the side surface of the sheet and the bottom surface of the sheet that is lifted from the mounting means by the push-up portion and the mounting means. Including the bottom contact portion.

Preferably, the push-up portion is a plurality of pins provided so as to be projectable from the mounting means, and the bottom surface contact portion of the push-up portion has a plurality of insertion portions inserted between the pins.

Preferably, the pad includes a first pad that defines the position of the sheet in the X-axis direction and a second pad that defines the position of the sheet in the Y-axis direction.

Preferably, the push portion is a first push portion that moves the sheet in the X-axis direction so as to abut the first contact portion, and a second push portion that moves the sheet in the Y-axis direction so as to abut the second contact portion. Includes 2 push parts.

Preferably, the mounting means is moved from the positioning station to the scrap removing station so as to move between the positioning station for positioning the sheet by the positioning means and the scrap removing station for removing the product part from the sheet by the scrap removing means. Includes a conveyor provided to move.

According to the scrap removing device of the present embodiment, it is possible to position the sheet with high accuracy with a simple configuration.

It is a schematic perspective view explaining an example of the residue removing apparatus which concerns on this embodiment. It is a side view which saw the scrap removing apparatus which concerns on this embodiment from the direction orthogonal to the sheet supply direction (direction of arrow AB), (A) shows the state before punching, (B) is the state after punching. Is shown. It is a schematic plan view which shows an example of the positioning means in this embodiment. It is a figure which shows the positioning means in this embodiment, (A) is a schematic perspective view, (B) is a partial side view of (A). It is a schematic diagram which shows the operation of the positioning means in this embodiment. FIG. 3D is a diagram showing a state in which the portion is moved to a specified position, and (D) is a state in which the contact portion is separated after the sheet is pushed by the push portion until it comes into contact with the contact portion.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding parts are designated by the same reference numerals, and the description thereof will not be repeated.

<About the scrap removal device>
An example of the scrap removing device 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. Arrows A1 in FIGS. 1 and 2 are the sheet supply direction of the scrap removing device 1, arrow A2 is the vertical direction of the scrap removing device 1, and arrow A3 is a direction orthogonal to the sheet supply direction of the scrap removing device 1. .. For ease of understanding, the scales of the drawings may differ from the actual ones, and the scales of the drawings may not be unified.

The scrap removing device 1 of the present embodiment includes a mounting means 2, a positioning means 5, and a scrap removing means 3. As a general rule, the scrap removing device 1 positions the sheet 70 mounted on the mounting means 2 at an appropriate position by the positioning means 5, and removes the scrap from the sheet 70 by the scrap removing means 3. In order to remove the debris accurately and with high quality by the debris removing means 3, it is important to position the sheet 70 by the positioning means 5 which is the previous step.

Here, the sheet 70 is, for example, paper, corrugated cardboard, a resin film, or the like. The sheet 70 has a rectangular shape, for example, and may be specifically a rectangular shape having a long side and a short side. When the sheet 70 is placed on the mounting means 2, it is preferable that a plurality of sheets are laminated. The sheet 70 includes a product section 71 and a scrap section 72. The boundary line 73 between the product portion 71 and the scrap portion 72 is a notch, and is separated into the product portion 71 and the scrap portion 72 by punching the scrap removing means 3. The product unit 71 is, for example, an unfolded packaging box.

In the debris removing device 1 of the present embodiment, in order, the sheet 70 is positioned by the positioning means 5, and then the debris is removed by the debris removing means 3. Since the main mechanism of the scrap removing device 1 is the scrap removing means 3, the configuration of the scrap removing means 3 will be described in detail prior to the description of the positioning means 5.

<Means for removing scraps>
With reference to the figure, the debris removing means 3 of the present embodiment is a sheet 70 by the lowering and ascending operations of a large number of upper type pins 31 and lower type pins 33 arranged in the upper position and the lower position of the sheet 70. It is a device that separates the waste portion 72 from the waste portion 72 and takes out the product portion 71. Preferably, the debris removing device 1 further includes a carry-out arm 80. The carry-out arm 80 carries out the product part 71 that is punched out from the sheet 70 and placed on the product part pin 33b at the lower position.

The debris removing means 3 is vertically moved and fixedly held by the upper die 30 at the upper position of the seat 70 and vertically moved and fixedly held by the upper die pin 31 at the lower position of the seat 70. It is provided with a lower mold pin 33. The upper die 30 and the lower die 32 are guided by the guide rods 34 and 35, respectively, and are driven up and down by a driving device (not shown). The scrap removing means 3 separates the product portion 71 and the scrap portion 72 of the sheet 70 by pressing the upper mold pin 31 and the lower mold pin 33 by raising and lowering the upper mold 30 and the lower mold 32.

The scrap removing means 3 includes a first template 36 and a second template 37. The first template 36 has a template main body corresponding to the product part 71 and a hole portion corresponding to the residue part 72. The second template 37 has a template main body corresponding to the scrap portion 72 and a hole portion corresponding to the product portion 71. The first template 36 and the second template 37 are guided by the guide rods 34 and 35, respectively, and are driven up and down relative to the upper mold 30 and the lower mold 32 by a driving device (not shown).

With such a configuration, by raising the first template 36, among the upper mold pins 31, the product part corresponding pin 31a that abuts on the template main body corresponding to the product part 71 of the sheet 70 is moved to the upward retracted position. Only the scrap pin 31b that does not interfere with the product 71 can be left at the working position of the upper die 30.

On the other hand, by raising the second template 37, among the lower mold pins 33, the product part that does not interfere with the boundary line 73 while leaving the scrap portion corresponding pin 33a corresponding to the scrap portion 72 of the sheet 70 in the downward retracted position. Only the template 33b is moved to the working position of the lower die 32 (as an upward protrusion).

With the configuration shown in FIGS. 1 and 2, only the scrap portion pin 31b that does not interfere with the product portion 71 of the sheet 70 can be left at the working position of the upper mold 30, and interferes with the scrap portion 72 of the sheet 70. Only the product part pin 33b that does not can be left in the working position of the lower mold.

As a result, the scrap portion 72 can be separated from the product portion 71 and punched out. Therefore, the scrap portion 72 can be efficiently punched and separated and removed without damaging the product section 71 and with a small number of work steps. Can be done.

When the punching process is completed, as shown in FIG. 2 (B), the product section 71 separated from the scrap portion 72 is the product section pin 33b at the ascending limit position (that is, the working position of the lower mold 32). It is placed above. The product unit 71 may be taken out by an operator or may be carried out by a carry-out arm 80. Specifically, the carry-out arm 80 is formed in a rake shape or a comb shape, for example. The carry-out arm 80 lifts the product part 71 and carries out the product part 71 to the outside. The carry-out arm 80 may be configured so as to be able to move up and down in the vertical direction as well as expand and contract in the horizontal direction by, for example, combining a hydraulic or pneumatic drive source and an electric drive source.

Although an example of the scrap removing means 3 has been described above, the configuration of the scrap removing means 3 is not limited to the above-described embodiment, and the sheet 70 may be separated into the product section 71 and the scrap section 72. ..

<About mounting means>
The mounting means 2 is provided so as to move from the positioning station 22 to the scrap removing station 23. Here, the positioning station 22 is an area for positioning the seat 70 by the positioning means 5. The scrap removing station 23 is an area for taking out the product unit 71 from the sheet 70 by the scrap removing means 3. The mounting means 2 is continuous from the positioning station 22 to the scrap removing station 23. Specifically, the mounting means 2 is, for example, a slat conveyor. The mounting means 2 includes a conveyor section 20 and a sheet mounting section 21 provided on the conveyor section 20. A sheet 70 is placed on the sheet placing portion 21. The power source of the mounting means 2 is not particularly limited, and examples thereof include pneumatic pressure, hydraulic pressure, and electric power.

On the conveyor portion 20 and the sheet mounting portion 21, a pore portion corresponding to the pore portion of the second template 37 provided in the scrap removing means 3 (that is, a pore portion corresponding to the product portion 71) is formed. ing. As a result, of the lower mold pins 33, only the product portion pin 33b can be brought into contact with the product portion 71, and as a result, the product portion 71 and the scrap portion 72 can be separated.

In the present embodiment, the sheet 70 is positioned on the sheet mounting portion 21, but the alignment may be performed directly on the conveyor portion 20. Further, the mounting means 2 may be a simple mounting table because it is sufficient that the sheet 70 can be mounted and the seat 70 does not necessarily have to be movable.

Further, although the mounting means 2 is assumed to be a slat conveyor, it may be any one that moves from the positioning station 22 to the scrap removing station 23, for example, other types of conveyors such as a belt conveyor, movement of plates, and the like. Can be taken.

<About positioning means>
Next, the positioning means 5 of the present embodiment will be described with reference to FIGS. 3 and 4. FIG. 3 is a schematic plan view of the positioning means 5 according to the present embodiment. 4A and 4B are views showing the positioning means 5 in the present embodiment, FIG. 4A is a schematic perspective view, and FIG. 4B is a partial side view of FIG. 4A. The broken line in FIG. 3 is the alignment position of the seat 70. Further, in FIG. 3, since the push-up portion 60 is provided on the bottom surface 70e side of the sheet 70, it is shown by a broken line.

The positioning means 5 of the present embodiment determines the positions of the sheet 70 in the X-axis direction and the Y-axis direction on the mounting means 2. By positioning the sheet 70 on the mounting means 2 by the positioning means 5, the accuracy of the scrap removing by the scrap removing means 3 can be improved. In the present embodiment, the X-axis direction is the direction indicated by the arrow A1, and the Y-axis direction is the direction indicated by the arrow A3. The directions indicated by the arrows A1 and A3 are the same as the directions indicated by FIGS. 1 and 2. The positioning means 5 includes a pair of contact portions 51 and 52, a pair of push portions 53 and 54, and a push-up portion 60.

The pair of contact portions 51 and 52 of the present embodiment are movably provided at positions where they come into contact with the side surfaces 70c and 70d of the sheet 70 in order to define the positions of the sheet 70 in the X-axis direction and the Y-axis direction. .. Specifically, the first contact portion 51 defines the position of the seat 70 in the X-axis direction (third side surface 70c located in front of the traveling direction). The second contact portion 52 defines the position of the seat 70 in the Y-axis direction (fourth side surface 70d located rearward in the depth direction). The first contact portion 51 and the second contact portion 52 are provided so as to be orthogonal to each other. As shown in FIG. 3, the first contact portion 51 extends in the supply direction (direction indicated by the arrow A1). The second contact portion 52 extends in a direction orthogonal to the supply direction (direction indicated by the arrow A3). The first contact portion 51 abuts on the third side surface 70c of the sheet 70, and the second contact portion 52 abuts on the fourth side surface 70d of the sheet 70. As shown in FIG. 4A, the pair of contact portions 51, 52 has, for example, a plate shape.

Depending on the size of the sheet 70, the positions in the X-axis direction and the Y-axis direction for positioning differ. Therefore, the pair of contact portions 51 and 52 are provided so as to be movable in the X-axis direction and the Y-axis direction (directions indicated by arrows A1 and A3). Specifically, the contact portions 51 and 52 are movable in one direction, the first contact portion 51 is provided so as to be movable in the X-axis direction, and the second contact portion 52 is movable in the Y-axis direction. It is provided as possible.

Further, the contact portions 51 and 52 may be provided so as to be movable in the vertical direction. As a result, when the sheet 70 is sent from the positioning means 5 to the scrap removing means 3 by the mounting means 2, the pair of contact portions 51 and 52 do not get in the way.

It should be noted that the contact portions 51 and 52 do not have to be provided in pairs. For example, one member having a substantially L-shape in a plan view is provided, and one member defines the positions in the X-axis direction and the Y-axis direction. You may. In this case, the contact portions 51 and 52 may be provided so as to be movable in both directions in the X-axis direction and the Y-axis direction.

The pair of push portions 53, 54 of the present embodiment moves the sheet to a position where it abuts on the contact portions 51, 52. Specifically, the first push portion 53 moves the sheet 70 in the X-axis direction so as to abut on the first contact portion 51, and the second push portion 54 abuts the sheet 70 on the second contact portion 52. Move in the Y-axis direction so as to make it. The first push portion 53 and the second push portion 54 are provided so as to be orthogonal to each other. As shown in FIG. 3, the first push portion 53 extends in the supply direction (direction indicated by the arrow A1). The second push portion 54 extends in a direction orthogonal to the supply direction (direction indicated by the arrow A3). The first push portion 53 abuts on the first side surface 70a of the sheet 70, and the second push portion 54 abuts on the second side surface 70b of the sheet 70.

As shown in FIG. 4B, the second push portion 54 has a substantially L-shape in side view, and is formed by a side contact portion 57 that abuts on the second side surface 70b of the sheet 70 and a push-up portion 60 that will be described later. The bottom surface 70e of the sheet 70 floated from the mounting means 2 and the bottom surface contact portion 58 inserted between the sheet mounting portion 21 are included. The second push portion 54 is formed, for example, in a rake shape or a comb shape. As a result, the bottom surface contact portion 58 becomes a plurality of insertion portions to be inserted between the pins 60 described later. The pushing portion 54 lifts the vicinity of two orthogonal sides of the sheet 70 and moves the sheet 70 until it comes into contact with the abutting portions 51 and 52. The second push portion 54 may be configured so as to be able to move up and down in the vertical direction as well as expand and contract in the horizontal direction by, for example, a hydraulic or pneumatic drive source and an electric drive source or a combination thereof. Further, the upper end of the side surface contact portion 57 is supported by the support portion 55. The configuration of the push portion 53 is the same as the configuration of the second push portion 54.

Since the push portions 53 and 54 are provided, even if the sheet 70 is thin, when the sheet 70 is moved to the contact portions 51 and 52, the sheet 70 may hang down or wrinkle, resulting in poor punching. The cause can be suppressed.

The push portions 53 and 54 may not be provided in pairs. For example, one member having a substantially L-shape in a plan view is provided, and one member defines the positions in the X-axis direction and the Y-axis direction. You may. Further, since it is sufficient that the push portions define at least the positions in the X-axis direction and the Y-axis direction, two or more push portions may be provided.

Further, although the push portions 53 and 54 are said to have a substantially L-shaped side view, the shape is not limited to this as long as the bottom surface 70e of the sheet 70 can be held.

As shown in FIGS. 4 (A) and 4 (B), the push-up portion 60 floats a portion of the sheet 70 where the push portions 53 and 54 abut from the mounting means 2. Specifically, the push-up portion 60 is a plurality of pins provided so as to be projectable from the seat mounting portion 21. Specifically, the plurality of pins have the same shape as the lower mold pin 33 used in the scrap removing means 3. The push-up portion 60 projects upward by, for example, about 1 cm to 3 cm from the upper surface of the mounting means 2. The push-up portion 60 may be provided at a position corresponding to two sides of the long side and the short side of the sheet 70.

As described above, on the conveyor section 20 and the sheet mounting section 21, there are holes corresponding to the holes in the second template 37 provided in the scrap removing means 3 (that is, holes corresponding to the product section 71). Part) is formed. It is preferable that the push-up portion 60 utilizes this pore portion. Specifically, it is preferable that a plurality of pins project from the lower side to the upper side from the hole portion corresponding to the end portion of the sheet 70. Although a plurality of pins may protrude from all the holes, it is preferable that the plurality of pins protrude only from the end portion of the sheet 70 in consideration of the displacement of the laminated sheets 70.

As a result, the push-up portion 60 protrudes from the seat mounting portion 21, so that the end portion of the sheet 70 rises from the seat mounting portion 21, and the bottom contact portion 58 of the push portion 54 described above is the seat mounting portion 21. It can be easily inserted between the seat 70 and the seat 70. As a result, it is possible to prevent the laminated sheets 70 from being displaced when the laminated sheets 70 are held by the pushing portion 54.

Further, although the push-up portion 60 is assumed to be a plurality of pins having the same shape as the lower mold pin 33, the present invention is not limited to this configuration, and may be, for example, another pin different from the lower mold pin 33. However, a part of the sheet mounting portion 21 may be raised, or the sheet 70 may be floated from below the sheet mounting portion 21 by air or the like.

<About the operation of the positioning means>
Next, the operation of the positioning means 5 will be described with reference to FIG. FIG. 5 is a schematic diagram showing the operation of the positioning means in the present embodiment. The portion shown by the broken line in FIG. 5 indicates a portion located below the sheet 70. Further, the portion shown by the alternate long and short dash line in FIG. 5 is an appropriate position for removing debris from the sheet 70 by the debris removing means 3. That is, the positioning means 5 can automatically position the seat 70 at an appropriate position.

First, as shown in FIG. 5A, a plurality of laminated sheets 70 are placed on the mounting means 2. The method of mounting on the mounting means 2 may be performed automatically or manually. At this point, the actual position of the seat 70 is different from the proper position P. In this case, the contact portions 51, 52 and the push portions 53, 54 are located above the seat 70.

As shown in FIG. 5B, the push-up portion 60 is projected upward from the mounting means 2. As a result, the sheet 70 is placed on the upper end of the push-up portion 60, so that the end portion of the sheet 70 is in a floating state from the mounting means 2. At the same time, the pair of push portions 53, 54 located above move downward and move to the vicinity of the mounting means 2. Further, as shown in FIG. 4B, the bottom surface contact portion 58 of the push portion 54 is inserted between the bottom surface 70e of the sheet 70 lifted from the mounting means 2 by the pushing portion 60 and the mounting means 2. Is done. When the sheet 70 is held by the pushing portion 54, the pushing portion 60 is lowered. As a result, the sheet 70 is held in a state of being floated from the mounting means 2 by the pushing portion 54.

Next, as shown in FIG. 5 (C), the contact portions 51 and 52 move to the appropriate positions P. Specifically, the pair of contact portions 51 and 52 located above move downward, the first contact portion 51 is arranged at a position along the X axis of the appropriate position P, and the second contact portion 52 Is located along the Y-axis of the proper position P.

Since the sheet 70 is held by the pushing portions 53 and 54 with reference to the figure, in that state, the pushing portions 53 and 54 are moved until the sheet 70 comes into contact with the abutting portions 51 and 52. As a result, as shown in FIG. 5D, the seat 70 is positioned at an appropriate position P.

As shown in FIG. 5D, when the seat 70 is positioned at an appropriate position P, the push portions 53 and 54 are pulled out from between the seat 70 and the mounting means 2. In this case, from the viewpoint of stacking accuracy of the sheet 70, it is preferable to pull out either the first push portion 53 or the second push portion 54 and then pull out the other, but the push portions 53 and 54 are pulled out at the same time. May be good. Return to the position above the waiting area. At the same time, the pads 51 and 52 also return to the positions above the waiting area.

This makes it possible to position the sheet with high accuracy with a simple configuration. Further, since the contact portions 51, 52, the push portions 53, 54 and the push-up portion 60 can be moved automatically instead of manually, highly accurate positioning can be performed.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown not by the above-described embodiment but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Scrap removal device, 2 Placement means, 3 Scrap removal means, 5 Positioning means, 70 sheets, 22 Positioning station, 23 Scrap removal station, 51 1st contact part, 52 2nd contact part, 53 1st push part, 54 2nd push part, 57 side contact part, 58 bottom contact part, 60 push-up part (pin), 71 product part, 72 residue part.

Claims (6)

A mounting means for mounting a sheet consisting of a product part and a residue part,
The positioning means for determining the positions of the sheet in the X-axis direction and the Y-axis direction on the above-mentioned mounting means, and the positioning means.
It is provided with a residue removing means for separating the residue portion from the sheet and taking out the product portion.
The positioning means is
In order to define the positions of the sheet in the X-axis direction and the Y-axis direction, a contact portion provided so as to be movable at a position where the sheet abuts on the side surface of the sheet, and a contact portion.
A push portion that moves the sheet to a position where it abuts on the contact portion, and a push portion .
A scrap removing device including a push-up portion for lifting a portion of the sheet with which the push portion abuts from the above-mentioned mounting means . The push portion has a substantially L-shaped side view, and has a side contact portion that abuts on the side surface of the sheet, and a bottom surface of the sheet and the front-described mounting means that are lifted from the previously described mounting means by the push-up portion. The scrap removing device according to claim 1 , which includes a bottom contact portion inserted between the two. The push-up portion is a plurality of pins provided so as to be projectable from the above-mentioned mounting means.
The residue removing device according to claim 2 , wherein the bottom contact portion of the push portion has a plurality of insertion portions to be inserted between the pins. The contact portion according to any one of claims 1 to 3 , wherein the contact portion includes a first contact portion that defines a position of the sheet in the X-axis direction and a second contact portion that defines a position of the sheet in the Y-axis direction. The debris removing device described. The push portion moves in the X-axis direction so as to bring the sheet into contact with the first contact portion, and moves in the Y-axis direction so as to bring the sheet into contact with the second contact portion. The debris removing device according to claim 4 , which includes a second pushing portion to be made to move. The above-mentioned placing means is said to move from the positioning station to a positioning station for positioning the sheet by the positioning means and a debris removal station for taking out the product part from the sheet by the debris removing means. The debris removal device according to any one of claims 1 to 5 , which includes a conveyor provided so as to move to a debris removal station.

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