JPH0847897A - Punching member used in discharge device for punched-out chip of paper article, and discharge device equipped with the punching member - Google Patents

Abstract

PURPOSE:To simply form punching members having different dimensions and different shapes, from one and the same material. CONSTITUTION:Punching members 13, 14 attached to a substrate along punching lines L, L' of slot parts 16 the outer peripheral edge and the inside of a punch- out article 18 have such a shape that a thin wall part 52 is formed between thick wall parts 51 projected outward, continuous to the thick wall parts 51. The punching members is formed by cutting a continuous material at a predetermined length, and is curved or bent into a desired shape about the thin wall part as a fulcrum.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching material for use in a device for punching out punching waste from a paper machine and an punching device provided with the punching material. Insert between the upper and lower dies, punch out the punching line of the material sheet with the punching material that protrudes from one die, and remove the punching scraps on the outer periphery of the punched product and the punching scraps inside the hollow part of the product. It is a thing.

[0002]

2. Description of the Related Art Conventionally, in this type of punching scrap removal device,
In the previous step, for example, as shown in FIG. 8, the punching line around the punched product 2 which is a finished product from the material sheet 1 on which punching lines L and L ′ are formed by performing the required punching. Various devices are provided for removing the punching scraps 3A partitioned by L and the punching scraps 3B in the hollowed-out portion of the punched product 2. As shown in FIG. 9, the punching lines L and L ′ that are die-cut in the above-described pre-process have a so-called perforation shape, and a seam (hereinafter referred to as the residual portion 4 and (Named) is left.

As an external device for removing the die-cut material sheet 1, for example, the device shown in FIGS. 10A and 10B has been conventionally provided. In the apparatus, the punching material 7A for cutting the outer punching line L and the punching material 7B for cutting the inner punching line L ′ are projected downward on the substrate 6 of the upper die 5, while the lower die 8 is pressed. The substrate 9 having a size slightly smaller than the outer shape of the punched product 2 is fixed to the upper die 5, and the upper die 5 is lowered to punch the blanks 7A and 7B.
The punching scraps 3A and 3B are pushed down to separate the residual portion 4 and the punching scraps 3A and 3B are detached.

[0004]

In the above-mentioned external removal device, if the outer peripheral punching line and the punching line of the hollow portion are changed, it is necessary to provide a punching material along the punching line. At that time, the linear punching line can be continuously attached with the punching material formed in a straight line, but if there is a curved punching line, the punching corresponding to the line can be performed. It is necessary to provide materials. Further, the hollowed-out portion of the punched product 2 has various shapes such as a circular shape, an elliptical shape, and a quadrangular shape, and the sizes thereof are different. Therefore, a punching material having a required size and shape must be provided. I have to.

That is, the punching material 7B for removing the punching waste 3B from the hollowing portion has a shape slightly smaller than the hollowing portion in order to apply a sufficient load to the punching waste 3B. Although it is located slightly inside of L ', when the shape of the hollow portion becomes large, the punching material 7B and the punching line L'
Is too long to apply a sufficient load to the punching scrap 3B, and therefore the residual portion 4 of the punching scrap 3B cannot be torn out and removed. On the other hand, when the shape of the hollowed-out portion becomes small, the punched-out waste 3B cannot be removed from the punched-out portion 3B beyond the punching line of the hollowed-out portion.

Further, the punching material 7B of the hollow portion is usually
Since the metal material is formed into a solid body having a uniform upper and lower width, the weight increases, and therefore, there arises a problem that the driving force of the substrate must be large when the punching scrap 3B is detached. Moreover, when the punching material 7B and the punching scraps 3B are brought into contact with each other over a large area, the frictional force generated by these contacts causes
When the substrate is lifted up after the punching work, the punching material 7B
There may be a problem that the material sheet sticks to the tip surface of the and rises together with the punching material.

The present invention has been made in view of the above problems, and easily copes with the change of the shape of the punched product, so that the punched scraps on the outer periphery of the punched product and the punched scraps on the internal hollow portion can be (EN) Provided are a punching material which can be detached from a residual portion and can be surely released, and an external removal device including the punching material.

[0008]

In order to achieve the above-mentioned object, the present invention according to claim 1 prescribes a cutting portion along the outer peripheral edge of the punched product and the internal hollow portion in the die cutting step in advance. A punching line consisting of the remaining portion is provided, and the material sheet provided with the punching line is placed between the upper and lower dies facing each other of the externalizing device, and these upper and lower dies are moved in the proximity direction to move one of the dies. Used in an apparatus for removing punching scraps, in which a punching material projecting from a board and a board of the other mold are fitted to separate the residual portion to remove the punching scraps from the punched product. The punching material is made of a thin metal plate in the vertical direction, and is formed with a small pitch to form thick wall portions facing the outer surfaces of both sides thereof and projecting along the entire length in the vertical direction. The thin portion and the thin portion in between are alternately continuous at a small pitch, The vertical end provides a striking 抜材 used outside detachment device of folding carton striking 抜屑 constituting the fixing portion to the substrate, the other end as a striking 抜屑 contact surface.

According to a second aspect of the present invention, there is provided the punched material according to the first aspect, which is formed by cutting a continuous material into a required length. In a third aspect, the punching material has a linear shape, and the punching material according to the first aspect is attached to the substrate so as to be along a linear punching line. According to a fourth aspect of the present invention, the punching material is curved or bent into a required shape with the thin portion as a fulcrum, and is attached to the substrate along a curved or bent punching line. We provide sampling.

In a fifth aspect of the present invention, the thick-walled portion of the stamped material is formed so that both sides thereof project in a V-shaped cross section and both sides project together to form a rhombus. We provide the stamped materials described. The protruding shape of the thick portion is not limited, and may be rectangular or semicircular, for example. Since the punching material is insufficient in strength only with a thin portion that is thin so as to serve as a fulcrum at the time of bending, a thick portion is provided, and thus the shape is not limited as described above.

According to a sixth aspect of the present invention, the punching material is disposed slightly outside along the punching line of the outer shape of the punched product, and the punching waste is removed from the outer peripheral portion of the punched product. A punching material according to any one of the preceding claims is provided. In claim 7, the punching material is curved or bent in an annular shape,
The punching material is arranged on the side of a slight punching scrap along the punching line of the punching part of the punched product, and is used as a punching material for removing the punching scrap of the punching part from the outside. We provide punching materials.

According to an eighth aspect of the present invention, a plurality of concave grooves are provided on a tip surface of the punching material which comes into contact with punching scraps, and a pressing portion is formed between the grooves. A punching material according to any one of claims is provided.

The stamping material is made of a lightweight metal such as aluminum, and the substrate to which the stamping material is attached is made of wood.

Further, in a ninth aspect of the present invention, a punching line consisting of a cut portion and a residual portion is provided on the material sheet in advance in the die cutting step along the outer peripheral edge of the punched product and the internal hollow portion. The material sheet provided with is placed between the upper and lower dies facing each other of the removing device, and the upper and lower dies are moved in the proximity direction to form a punching material protruding from the substrate of one die and the substrate of the other die. In the device for removing punching scraps that separates the above-mentioned residual portion to separate the punching scraps from the punched product by fitting, the punching material is made of a vertical thin metal plate, and both sides thereof are Thick wall portions facing the outer surface and projecting over the entire length in the vertical direction are formed at a small pitch, and the thick wall portions and the thin wall portions between them are continuously formed at a small pitch. One end is fixed to the above substrate and the other end is pressed against the material sheet. To provide an outer removal apparatus provided with the droplet 抜材 that attach to decouple the droplet 抜屑.

[0015]

According to the punching material of claim 1 of the present invention, since it is made of a thin metal plate, it is possible to push out the material sheet to the punching line to remove the punching scraps by pressing along the punching line. I can. According to the second aspect of the present invention, when the punching material is formed by cutting it from a continuous material into a required length, the punching material can be sized so as to be continuously arranged on the punching line.
Further, if the above-mentioned material is provided in advance, it is possible to deal with the case where the length of the punching line is changed, simply by cutting the material.

When the punching line is a straight line as described in claim 3, the punching material can be formed only by cutting the material. Further, as described in claim 4, the punching line is curved,
Alternatively, when the material is bent, it can be bent or bent into a desired shape by cutting the material and applying a required bending force with the thin portion as a fulcrum. Therefore, the punched material can be a punched material along a curved or bent punching line.

According to a fifth aspect of the present invention, when a thick portion having a rhombic cross section is provided, the insufficient strength of the thin portion necessary for bending or bending into a desired shape can be sufficiently compensated, and a required portion can be provided during external action. A pressing force can be applied to the material sheet.

As described in claims 6 and 7, a punching material made of the same material is used as a punching material for removing the punching scraps on the outer peripheral portion of the punched product, and the punching portion is punched. It can be used as a punching material for removing scraps.

When a plurality of concave grooves are provided on the tip end surface which comes into contact with the punching scraps and projecting pressing portions are formed between the grooves, the punching scraps are detached from the outside. During operation, slippage is prevented from occurring between the punching material and the punching scraps, and the pressing force required for the punching scraps to come out is uniformly applied to the punching scraps.

According to the ninth aspect of the present invention, since the punching material is provided, the punching scraps can be reliably and smoothly removed from the outside. In addition, the punching material can be used by cutting a preformed material into a required size and then bending the material if necessary, and can be manufactured at low cost.

[0021]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 5 show a first embodiment, and FIG.
Is the upper die substrate 11, the lower die substrate 12, the punching line L of the material sheet 10, the punching material 13 attached to the substrate 11, 1
It is explanatory drawing which shows the relative positional relationship of No. 4. Material sheet 10
The punching product 18 formed by further removing the punching scraps has a simple rectangular outer shape for the sake of simplicity, and the punching product 18 has a circular hollow portion 16 inside. Then, the punching scrap 17 on the outer peripheral portion is removed from the punching material 13
Then, the punching scraps 17 'of the hollow portion 16 are detached by the punching material 14. The material sheet 10 is formed along with the outer shape of the punched product 18 and the hollowed-out portion 16 by a punching portion 19 that has been completely cut in advance in a preceding step and a residual portion 20 that is a continuous portion. Blank line L, L '
Is provided.

The substrate 11 on the upper die side is moved up and down by driving means (not shown). On the other hand, the lower mold substrate 12 has a support frame 2 whose one end is fixed to the lower surface thereof and which is projected from the outer peripheral surface.
The other end of 1 is fixed to a lower mold (not shown) and installed at a predetermined position. The external removal device lowers the substrate 11 on the upper die side toward the substrate 12 on the lower die side to bring them closer to each other, and raises them to separate them from each other. Sometimes, the upper mold substrate 11 is lowered.

The upper die substrate 11 and the lower die substrate 12 are made of wood, and the punching material 13 made of aluminum is used for the upper die substrate,
14 is projected downward. These punching materials 13, 1
4 is formed by cutting a material 50 continuous in the length direction X into a required length and bending the material 50 along the punching line L or L ′.

As shown in FIG. 2, the raw material 50 has V-shaped thick portions 51 which are opposed to each other and project in a V shape on both side surfaces in the vertical direction Y which is orthogonal to the length direction X. The thin-walled portions 52 are provided between the thick-walled portions 51 with a required space in the length direction. The thick-walled portions 51 and the thin-walled portions 52 are provided alternately at a small pitch P. The thickness T1 of the thin portion 52 needs to be thin enough to allow bending, and the thickness T2 of the thick portion 51 is a thickness capable of imparting the required strength as a punching material. The pitch P is preferably as small as possible so that it can be refracted with a small curvature. In this embodiment, the thickness T2 of the thick portion 51 is 4 mm, the width W is 3 mm, the thickness T1 of the thin portion 51 is 1 mm, the length L is 1.5 mm, and the pitch P is 4 mm.

The raw material 50 is cut out in a plane shape in the length direction X on both surfaces at one end side (lower side in FIG. 2) in the vertical direction Y, and a fixing portion 27 for the upper die substrate 11 is provided. The portion 27 is press-fitted into a groove formed in the substrate 11 to be attached.

Punching material 13 for cutting outer peripheral punching scraps
Is used in the linear state shown in FIG. 2 with the linear material 50 cut. As shown in FIGS. 3A, 3B, and 3C, the punching material 14 for cutting the punching scraps of the product hollowing portion 16 is obtained by cutting the material 50 into the required size and then the thin portion 5 described above.
It is bent with 2 as a fulcrum to form the shape shown along the punching line L '. The punching material 14 has a hollow portion 16
The outer dimensions are slightly smaller than the shape. Further, on the lower die substrate 12, at a position facing the punching material 14,
A punching hole 35 having a shape slightly larger than the punching line L'of the punching waste 17 'is provided.

Next, the detaching action of the detaching device using the punching material will be described. FIG. 4A, FIG. 4B, and FIG. 4C show the external removal action of the punching scraps 17 ′ on the hollow portion 16 side.
The external action of 7 is as shown in FIGS. 5 (A), (B), (C), and (D). First, the punching scraps 17 'will be described.

The material sheet 10 is conveyed to and placed on the upper surface of the lower die substrate 12, and as shown in FIG. And the outer surface of the punching material 14 are arranged and positioned. Next, the upper die substrate 11 is lowered by the driving means, and as shown in FIG. 4 (B), the tip surface of the punching material 14 is brought into contact with the upper surface of the punching waste 17 'to remove the punching waste 17'. Press. Therefore, the residual portion 20 that connects the punched product 18 and the punching dust 17 'is separated by tearing, and the punching dust 17' is cut off as shown in FIG. 4 (C).
Make sure to get out. When the removal of the punching scraps 17 'is completed,
The upper mold substrate 11 is raised from the state shown in FIG. At this time, since the punching material 14 is formed by bending the material 50 into an annular shape, the air inside the annular portion causes the punching waste 17 '.
Is pushed down from the punched material 14 and prevented from rising together with the punched material 17 '.

Similarly, with the punching material 13, along the punching line L on the outer peripheral portion of the product, as shown in FIGS. 5 (A), (B), (C), and (D), with respect to the punching scraps 17, The pressing force is surely applied from above to tear the residual portion 20 of the punching line L, and the punching scrap 17 is removed.

FIG. 6 shows a material 50 for forming the punching materials 13 and 14 of the second embodiment, in which the material 30 has a concave groove 30 on the tip end surface which contacts the punching scraps 17 and 17 '. Are recessed at required intervals in the length direction, and protruding portions 31 are formed between these grooves 30. The groove 30 is formed by notching the front end surface of the thin portion 52 at a required depth, and thus the pressing portion 31 is formed by the thick portion 51.

Punching material 1 formed using this material 50
The grooves 30 formed on the tip end surfaces of the members 3 and 14 can more reliably prevent slippage with the material sheet 10. In addition, the pressing portion 31 between the grooves 30 can uniformly apply a pressing force to the punching scraps 17 and 17 ′, so that the punching scraps 17 and 17 ′ can be reliably punched.
It is possible to get out from 8. FIG. 7 shows a modified example of the material 50, in which the concave groove 30 is provided so as to extend also in the length direction X of the tip surface.

[0032]

As is apparent from the above description, according to the punching material attached to the outer removal device of claim 1 of the present invention, the punching material is continuously cut along the punching line of the outer peripheral portion and the hollow portion. Therefore, it is possible to uniformly apply a pressing force by the punching material along the punching line and push it down.

In the punching material according to the second aspect, since a raw material having a thick portion and a thin portion continuous is cut into a required length and used, it is necessary to form the punching material in accordance with a dimension to which the punching material is attached. Disappears.

The punching materials according to claims 3 and 4 can be formed of the same material. In particular, since it is bent along the punching line to form the punching material for removing the punching scraps, it is possible to deal with the case where the shape of the punched product is changed. Therefore,
Since it is not necessary to form a new punching material when the shape of the punched product is changed, it is possible to significantly reduce the cost.

In the punching material according to the fifth aspect of the present invention, the thick-walled portion is formed by projecting in a V-shape. Further, as in the eighth aspect, a groove is provided on the tip end surface which comes into contact with punching scraps. If a pressing part is formed between them, it prevents slippage between the punching material and the punching scraps when the punching scraps are detached, and applies a uniform pressing force to the punching scraps. As a result, the punching waste can be reliably removed.

According to the sixth and seventh aspects, a punching material formed of the same material is used as a punching material for punching scraps on the outer periphery of the product, and a punching material for punching scraps on the hollow portion inside the product. Can be used as, and the production of punching material is extremely simple and inexpensive. Similarly, the external device using the punching material according to claim 9 can be manufactured extremely easily and inexpensively.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing the positional relationship of the entire external removal device in a first embodiment of the present invention.

FIG. 2 is a perspective view showing a material forming the punching material of the first embodiment.

3 (A), (B), and (C) are plan views showing punching materials formed of the material of FIG.

4 (A), (B) and (C) are schematic views showing an operation of removing punching scraps in a hollowed portion by a punching material that has been formed.

5 (A), (B), (C), and (D) are schematic views showing an operation of removing the punching scraps on the outer peripheral portion of the punched product by the formed punching material.

FIG. 6 is a perspective view showing a material forming a punching material according to a second embodiment.

FIG. 7 is a perspective view showing a modified example of the material forming the punching material of the second embodiment.

FIG. 8 is a perspective view showing a punched product formed by a conventional removal device.

FIG. 9 is a plan view showing a punching line.

10 (A) and 10 (B) are cross-sectional views showing an operation process of a conventional external removal device.

[Explanation of symbols]

 10 Material Sheet 11 Upper Die Substrate 12 Lower Die Substrate 13 Punching Material for Outer Shape 14 Punching Material for Hollowing Part 16 Hollowing Part 17, 17 'Punching Waste 18 Punching Product 19 Cutting Part 20 Residual Part 50 Material 51 Thick part 52 Thin part L, L'Punching line

Claims (9)

[Claims] 1. A material sheet having a punching line formed in advance in a die cutting step, the punching line having a cutting portion and a residual portion along the outer peripheral edge and the inner hollow portion of the punched product, and the material sheet having the punching line. Is placed between the upper and lower dies facing each other of the removal device, and these upper and lower dies are moved in the proximity direction to fit the punching material protruding from the substrate of one mold and the substrate of the other mold. The punching material used in the punching-dust removing apparatus for separating the remaining portion from the punching product by cutting off the residual portion, wherein the punching material is a thin metal plate in the vertical direction. The thin plate is formed by forming a small pitch at a small pitch so as to face the outer surfaces on both sides and project in the entire length in the vertical direction, and the thick part and the thin part between them are continuously formed at a small pitch. One end in the vertical direction of the is a fixed part to the substrate, and the other end is a punch scrap contact surface. Striking 抜材 used outside detachment device of folding carton striking 抜屑 constituting Te. 2. The punched material according to claim 1, which is formed by cutting a continuous material provided with the thick portion and the thin portion to a required length. 3. The punching material has a linear shape, and is attached to the substrate along a linear punching line.
Stamping material described in. 4. The punching material according to claim 1, wherein the punching material is curved or bent into a desired shape with the thin portion as a fulcrum, and is attached to the substrate along a curved or bent punching line. Extracted material. 5. The die-cutting material according to claim 1, wherein the thick-walled portion has both surfaces protruding in a V-shaped cross-section, and both surfaces are projected together to form a rhombus. 6. The punching material according to claim 1, wherein the punching material is arranged slightly outside along the punching line of the outer shape of the punched product to remove the punching scraps on the outer peripheral portion of the punched product. Stamping material described in. 7. A punching tool that bends or bends in an annular shape with the thin portion as a fulcrum and is arranged on the side of a slight punching scrap along the punching line of the punching portion of the punching product to remove the punching scraps of the punching portion. The punched material according to any one of claims 1 to 5, which is a blanked material. 8. The punching scrap contact surface is provided with a plurality of concave grooves, and a pressing portion protruding between the grooves is formed, according to claim 1. Punching material. 9. A material sheet provided with a punching line, which is composed of a cutting portion and a residual portion along the outer peripheral edge and the internal hollow portion of the punched product, in advance in the die cutting step, and the punching line is provided. Is placed between the upper and lower dies facing each other of the removal device, and these upper and lower dies are moved in the proximity direction to fit the punching material protruding from the substrate of one mold and the substrate of the other mold. In the device for removing punching scraps that separates the residual portion and removes the punching scraps from the punched product, the punching material is made of a vertical thin metal plate and faces both outer surfaces thereof. Thick portions projecting over the entire length in the vertical direction are formed with a small pitch, and the thick portions and the thin portions therebetween are continuous at a small pitch, and one end in the vertical direction of the thin plate is formed on the substrate. Fix and separate the punching scraps by pressing the other end to contact the material sheet. Outer detachment device provided with an attached are striking 抜材 as.