JPH0453918Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a product separation device in a sheet punching device for corrugated cardboard sheets or similar sheets of paper, metal, plastic, etc.

[Conventional technology and its problems]

As schematically shown in FIG. 1, the corrugated sheet punching device is equipped with an endless sheet transport device B equipped with a sheet holder a such as a gripper in front of a sheet supply device A, and an endless sheet transport device B equipped with a sheet holder a such as a gripper in the middle of the sheet transport path. A punching device C, a stripping device D, and a product separating device E are provided in this order, and the front side of the sheet S sent out from the sheet feeding device A is held by a holder a, and is intermittently transferred in one direction by a predetermined stroke. On the way, each of the above devices C, D,
E is used to perform appropriate processing on the sheet S.

That is, in the punching device C, as shown in FIG. 2, the sheet S has a punching line 1 shown as a thick line, a fold line 2 shown as a thin line, and a broken line between the holding sheet piece 3 and the part 4 that will become the punching waste. A punch line 1' is inserted. In this case, the punching line 1 between the inner product 5 surrounded by the punching line 1 and the holding sheet piece 3
The connecting part 6 is left in a part of the part.

In the stripping device D, the punched waste portion 4 is struck off to form a punched sheet S' as shown in FIG. 3, and in the product separation device E, the product 5 is separated from the holding sheet piece 3. I try to do that.

As shown in FIG. 10, the product separating device E is usually provided with an upper support 11 and a lower support 12 that are long in the direction transverse to the sheet transport direction above and below the sheet transport path, and the upper support 11 is A product pushing-down member 13 is attached to the lower surface, while the lower support member 12
A support member 14 for the holding sheet piece 3 is attached to the upper surface, and as the lower support member 12 moves upward, the holding sheet piece 3 is supported by the support member 14, and at the same time, the upper support member 11 is lowered to remove the product. The product 5 is pushed down by a push-down member 13.

By the way, in the conventional product separation device E,
As shown in FIG. 11, a product push-off member 13 has a pair of thin metal plates 31 attached to both side edges of an elongated plate 30, and as shown in FIG.
A product push-off member 13 having a bent piece 33 at the tip thereof is adopted, and each product push-off member 13 is attached to the plate 3.
A bolt 36 is inserted into a long hole 34 formed at 0 and 32, and the bolt 36 is screwed into the upper support 11 to be attached.

As described above, the product push-off members 13 are long and narrow members with a small width dimension, and therefore, when pushing down the product 5, it is necessary to attach a large number of them in the length direction of the upper support body 11. In addition, holding sheet piece 3
Since it is necessary to push down the part close to the punching line 1 between the product 5 and the product 5 with the product push-off member 13, each product push-off member 13 is installed at a position in the conveying direction of the sheet S corresponding to the shape of the punch line 1. need to be adjusted. The adjustment of the mounting position must be carried out each time the punched product is changed, which is disadvantageous in that it takes a lot of time to set up the product push-off operation.

[Purpose of invention]

Therefore, this invention solves the above-mentioned inconvenience and improves the efficiency of setup work by using a plate whose outer periphery corresponds to the shape of the punched line between the holding sheet piece and the product as a product push-down member. The purpose is

[Structure of the idea]

In order to achieve the above object, in this invention, a product push-off plate of a size corresponding to the front side of the product is attached to the lower surface of the upper support, and the downstream front edge of the product push-off plate in the sheet transport direction. is shaped to correspond to the punch line between the holding sheet piece of the punched sheet and the product, and a support member that supports the holding sheet piece is attached to the upper surface of the lower support, and the trailing edge of the support member in the sheet movement direction is It is arranged in a straight line, and at least one of the upper and lower supports is moved up and down to separate the punched sheet product fed between the two supports from the holding sheet piece.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

〔Example〕

As shown in FIGS. 4 to 6, an upper support 11 and a lower support are provided below the transport path of the punched sheet S' on which the holding sheet piece 3 is supported by the gripper a as a sheet holder. 12 are placed,
Each of the supports 11 and 12 is moved up and down by the operation of a drive device (not shown) when the punched sheet S' is stopped.

A bracket 14 for supporting the plate is attached to the lower surface of the upper support 11, and a product push-down plate 15 is attached to the bracket 14. This product push-off plate 15 is replaced according to the shape of the product part 5 of the punched sheet S', and the front edge of each plate 15 on the downstream side in the sheet transport direction is connected to the holding sheet piece 3 of the punched sheet S' and the product part 5 of the punched sheet S'. The shape corresponds to the punched line 1 between 5 and 5.

As shown in FIG. 9, the lower surface of the product push-off plate 15 is provided with a plurality of oval recesses 16, and the upper surface of each recess 16 is provided with a daruma-shaped mounting hole that opens at the upper surface of the product push-off plate 15. 17 are provided. This product push-down plate 15
In this step, the large diameter hole of the mounting hole 17 is fitted into the head 19 of the bolt 18 screwed into the lower surface of the bracket 14, and the product push-off plate 15 is moved along the bolt 18 to open the mounting hole 17. It is attached to the lower surface of the bracket 14 by tightening the bolt 18 after contacting the closed end of the small diameter hole. In this case, the product push-off plate 15 is brought into contact with the closed end of the small diameter hole portion of the mounting hole 17 and the bolt 18.
is positioned with respect to the punched sheet S' that stops below it, and as shown in FIG. 4, the front edge of the product push-off plate 15 substantially coincides with the punch line 1 of the punched sheet S'.

As shown in FIG. 6, a support member 20 for supporting the holding sheet piece 3 of the punched sheet S' is attached to the front surface of the lower support member 12 on the upstream side in the sheet movement direction. The trailing edge on the downstream side in the direction is linear regardless of the shape of the product 5. Further, a dovetail groove 21 is formed in the length direction of the lower surface of the lower support body 12, and a screw hole 23 is provided in the piece 22 which is fitted into the dovetail groove 21 and is movable. Square block 25 is attached by bolt 24, and piece 22 is also fixed at the same time.

A guide groove 26 is provided on the upper surface of the block 25 as shown in FIG. 8, and a rod is inserted into the guide groove 26 and prevented from moving in the axial direction by tightening the mounting bolt 24. A support piece 28 is provided at the tip of 27. This support piece 28
The third sheet is attached to the holding sheet piece 3 of the punched sheet S'.
As shown in the figure, if there is an elongated protrusion 7 that enters inside the product 5, it is used to support the protrusion 7, and if there is no protrusion 7, it is removed from the block 25 together with the rod 27. Leave it there.

The product separating device shown in the embodiment has the above-mentioned structure, and this product separating device separates the product push-off plate 15 corresponding to the product 5 of the punched sheet S' held by the gripper a and conveyed in one direction. It is attached to the lower surface of the upper support 11 to perform the work of pushing down the product 5.

Now, when the punched sheet S' held by the gripper a is transferred to below the product push-off plate 15 and stopped, the lower support 12 is raised,
A support member 20 supported by the support body 12 supports the holding sheet piece 3. At the same time, the upper support 11
is lowered, and the product push-off plate 15 supported by the upper support 11 releases the product 5 of the punched sheet S'.
Press down. At this time, the front edge of the product pushing-down plate 15 has a shape corresponding to the punching line 1 between the holding sheet piece 3 and the product 5, and the punching line 1
Since the product push-off plate 15 pushes down the adjacent portion of the product 5, the connecting portion 6 is cut and the product 5 is pushed down cleanly along the punch line 1. When the punched sheet S' is changed and the shape of the product 5 is changed, only the product push-off plate 15 is replaced while leaving the support member 20 as is.

Note that at least one support may be moved up and down without raising and lowering both the upper and lower supports.

〔effect〕

As described above, in this invention, a product push-off plate with one side of the outer periphery in a shape corresponding to the punch line between the holding sheet piece and the product is attached to the upper support and the product is pushed down. When changing the product shape of the sheet, it is only necessary to replace the product push-off plate, eliminating the need to replace the lower support member.Furthermore, it is only necessary to position the product push-off plate relative to the incoming punched sheet. Therefore, setup work can be carried out efficiently in a very short time.

In addition, since the product push-off plate is sized to correspond only to the front side of the product on the punched sheet, it is cost-effective compared to a product push-off plate that has the same shape and size as the product. At the same time, it is lightweight and can be driven at high speed.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a sheet punching device, FIGS. 2 and 3 are plan views of a punched sheet punched by the same device, and FIG. 4 is a plan view of a product separation device according to this invention. 5 is a plan view of the same, FIG. 6 is a longitudinal side view of the same, FIG. 7 is a longitudinal side view of the same operating state, and FIG. 8 is a sectional view of a part of the lower support body of the above; FIG. 9 is an exploded perspective view showing a part of the bracket and product push-off plate shown above, FIG. 10 is a vertical side view showing a conventional product separation device, and FIGS. 11 and 12 are the product push-off members shown above. FIG. 11... Upper support body, 12... Lower support body, 1
5...Product push-down plate, 20...Supporting member.

Claims (1)

[Scope of utility model registration request] A sheet punching device that separates a punched sheet, in which a product is provided on one side of the holding sheet piece, and a connecting portion is provided on a punch line formed between the product and the holding sheet piece, into the holding sheet piece and the product. In the product separation device, an upper support that at least one of which is moved up and down above and below a sheet stop position of a sheet transfer path in which the holding sheet piece is held and the sheet is transferred in one direction with the holding sheet piece at the front side. A product push-off plate of a size corresponding to the front side of the product is removably attached to the lower surface of the upper support, and the front edge of the product push-off plate on the downstream side in the sheet transport direction is provided. has a shape corresponding to the punched line, and a support member is attached to the upper surface of the lower support for supporting the holding sheet piece and having a straight rear edge on the upstream side in the sheet movement direction. Product separation device in sheet punching equipment.