JP4616486B2 - Work die cutting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a workpiece punching device (so-called blanking device) for punching a workpiece and separating the workpiece into a product portion and a peripheral portion.
[0002]
[Prior art]
Conventionally, as shown in FIGS. 7 and 8, there is known a work 30 including a product part 31 and a peripheral part 32 connected to the product part 31 via a severable connecting part 33. Such a workpiece 30 is punched by the workpiece die cutting apparatus 10 and separated into a product portion 31 and a peripheral edge portion 32. In this case, the work die cutting apparatus 10 presses the work 30 between one mold (lower mold) 11 in which an opening corresponding to the product portion 31 of the work 30 is formed and the one mold 11 to connect the work 30. The other mold (upper mold) 15 a that breaks the portion 33 is provided, and the other mold 15 a shown in FIG. 8 is prepared for each shape of each product section 31.
[0003]
The product part 31 separated by the work die cutting apparatus 10 is taken out as a product, and at the same time, the peripheral edge part 32 is processed as a punching residue.
[0004]
[Problems to be solved by the invention]
As described above, the other mold 15 a of the work die cutting apparatus 10 shown in FIG. 8 is prepared for each shape of each product part 31.
[0005]
However, it is troublesome to prepare the other mold 15a for each shape of each product part 31, and the conversion work of the mold 15a is particularly troublesome. In addition, a space for storing the mold 15a prepared in accordance with the shape of each product part 31 is also required.
[0006]
The present invention has been made in consideration of such points, and an object of the present invention is to provide a work die-cutting apparatus that does not require a mold for each shape of a product portion.
[0007]
[Means for Solving the Problems]
The present invention relates to a workpiece die cutting apparatus for punching a workpiece comprising a product portion and a peripheral portion connected to the product portion via a breakable connecting portion, and an opening corresponding to the product portion of the workpiece is formed below. One of the molds that are positioned , and pressing the work between the one mold, breaking the connection part of the work and separating the work into a product part and a peripheral part, and the other mold located above , The other mold has a support plate, a plurality of pins attached to the support plate so as to be movable back and forth, and fixing means for fixing the pins to the support plate. The fixing means is disposed on the support plate between the pins. The expansion tube and an air supply source for supplying air into the tube are fixed to the support plate by an expansion tube that supplies air into the expansion tube and expands, and a plurality of attachments are attached to the support plate. Pins are multi-row and multi-stage on a plane Arranged regularly, the expansion tube extends in a comb shape between the pins, and the opening of one mold is variable corresponding to the product part of the work, and corresponds to the peripheral part of the work among the plurality of pins The pin is pulled in to the support plate side, the pin corresponding to the product part of the workpiece protrudes from the support plate, and when the workpiece is pressed between one mold and the other mold, the peripheral edge of the workpiece is A workpiece die cutting apparatus characterized in that the workpiece product portion is sandwiched between pins corresponding to the peripheral portion, and the product portion of the workpiece is broken from the peripheral portion and dropped into the opening of one mold by the pin corresponding to the product portion of the workpiece. It is.
[0008]
According to the present invention, the pin corresponding to the peripheral portion of the workpiece is retracted to the support plate side, and the pin corresponding to the product portion is protruded from the support plate. Next, air is supplied from the air supply source to the expansion tube, and the pin is fixed by the expansion tube. When the workpiece is pressed by one mold and the other mold, the pin corresponding to the peripheral edge of the workpiece holds the peripheral edge of the workpiece between the one mold and the pin corresponding to the product portion is the product of the workpiece Press the part.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing a first embodiment of a work die cutting apparatus according to the present invention.
[0010]
First, a work die cutting system 1 in which a work die cutting device is incorporated will be described with reference to FIG. As shown in FIG. 6, the work die cutting system 1 includes a printing book stacking unit 2 in which a large number of printing books B are stacked, a printing book transport unit 3 that transports the printing books B, and a breakable connection to the printing book B. And a cut forming portion 4 for forming a cut leaving the portion 33.
[0011]
Of these, the cut forming part 4 forms a cut in the printing book B, and produces a workpiece 30 comprising a product part 31 and a peripheral part 32 connected to the product part 31 via a breakable connecting part 33. (See FIGS. 1 and 6). The work 30 produced by the cut forming section 4 is sent to the work die cutting apparatus 10 according to the present invention. Next, the workpiece 30 is punched by the workpiece die cutting apparatus 10, the connecting portion 33 of the workpiece 30 is broken, and the workpiece 30 is separated into the product portion 31 and the peripheral edge portion 32.
[0012]
Thereafter, the product part 31 is taken out from the product take-out part 7 as a product, and the peripheral edge part 32 is discharged from the punching waste discharging part 6 as a punching waste.
[0013]
Next, the work die cutting apparatus 10 will be described with reference to FIGS. As shown in FIGS. 1 and 2A and 2B, the work die cutting apparatus 10 has one die (lower die) 11 in which an opening 11a having a shape corresponding to the shape of the product portion 31 of the work 30 is formed. And the other mold (upper mold) 15 that presses the workpiece 30 between the mold 11 and breaks the connecting portion 33 of the workpiece 30 to separate the workpiece 30 into the product portion 31 and the peripheral portion 32. ing.
[0014]
Of these, the lower mold 11 includes a horizontal frame 12 and a vertical frame 13, and the horizontal frame 12 and the vertical frame 13 are slidable with each other, and the shape of the opening 11 a of the lower mold 11 can be made variable. . For this reason, even if the shape of the product part 31 changes variously, it is not necessary to prepare the lower mold | type 11 for every product part 31 by changing the shape of the opening 11a of the lower mold | type 11 according to the shape of the product part 31. .
[0015]
The horizontal frame 12 and the vertical frame 13 of the lower mold 11 are fixed, a jig (not shown) having an opening is fitted into the lower mold 11, and the jig is exchanged for each shape of the product part 31. Also good.
[0016]
The upper die 15 includes a support plate 16 composed of an upper support plate 16a and a lower support plate 16b, and a plurality of pins 17 attached to the through holes 18 of the support plates 16a and 16b.
[0017]
The pin 17 has a smaller diameter than the through-hole 18, and therefore the pin 17 can advance and retract with respect to the support plates 16 and 16b. A stopper 17 a is provided at the upper end of the pin 17. For this reason, although the pin 17 can move forwards and backwards with respect to the support plate 16, it does not fall off. A retaining ring (not shown) may be provided instead of the stopper 17a.
As shown in FIG. 4, every other pin 17 is arranged in the through hole 18 of each of the support plates 16a and 16b. However, even if the pins 17 are arranged in all the through holes 18 as shown in FIG. Good.
[0018]
As shown in FIGS. 2 to 5, the upper support plate 16a and the lower support plate 16b are coupled by a coupler (not shown) so that the gap between them is constant. The upper support plate 16a and the lower support plate An expansion tube 20 that fixes each pin 17 to the upper support plate 16a and the lower support plate 16b is provided between the pins 16b.
[0019]
The expansion tube 20 is disposed between the upper support plate 16 a and the lower support plate 16 b and between the pins 17, and an air supply source 23 is connected to each expansion tube 20 via an air tube 24. Yes. Each pin 17 is pressed and held by supplying air from the air supply source 23 to the expansion tube 20 to expand the expansion tube 20. Here, the expansion tube 20, the air tube 24 and the air supply source 23 constitute a fixing means.
[0020]
Each expansion tube 20 includes a rubber tube main body 21 (FIG. 3A) and a covering material 22 (FIG. 3B) covering the rubber tube main body. The rubber tube body 21 is made of, for example, silicon rubber and can be easily expanded. The covering material 22 for covering the rubber tube main body 21 is made of a material that is flexible and hard to break, for example, a fiber material, and appropriately protects the rubber tube main body 21 from the outside, and at the time of expansion of the rubber tube main body. The shape is kept uniform.
[0021]
As shown in FIG. 4, the pins 17 attached to the upper support plate 16 a and the lower support plate 16 b are regularly arranged in multiple rows and multiple stages on the plane, and each expansion tube 20 has each pin 17. It extends like a comb.
[0022]
In this case, the inflation tube 20 in a state where air is not supplied is in a state in which no or contact abuts on the pin 17, the inflation tube 20 in a state where d A is supplied to press and hold the respective pin 17.
[0023]
Next, the operation of the present embodiment having such a configuration will be described.
[0024]
First, of the pins 17 on the support plate 16, the pins 17 corresponding to the peripheral portion 32 of the work 30 are retracted to the support plate 16 side in advance, and the pins 17 corresponding to the product portion 31 of the work 30 protrude from the support plate 16. The position of the pin 17 is adjusted according to the shape of the work 30. Next, air is supplied from the air supply source 23 into the expansion tube 20 through the air tube 24. Thus, by supplying air into the expansion tube 20 and expanding the expansion tube 20, the pin 17 is pressed and held by the expansion tube 20 to fix the pin 17 to the upper support plate 16a and the lower support plate 16b. (FIG. 5).
[0025]
Next, in FIG. 1, the work 30 enters the work die cutting apparatus 10 from the direction of the arrow L, and then the work 30 stops at a predetermined position on the lower mold 11. At this time, the product portion 31 of the workpiece 30 is in a position corresponding to the opening 11a of the lower mold 11 (FIG. 2A).
[0026]
Next, the upper die 15 descends from above the workpiece 30 toward the lower side with respect to the workpiece 30 on the lower die 11. In this case, the product portion 31 of the workpiece 10 is on the opening 11 a of the lower mold 11, while the peripheral edge portion 32 is supported by the lower mold 11. For this reason, among the pins 17 of the upper die 15, the pin 17 corresponding to the peripheral portion 32 is stopped by the lower die 11, and the peripheral portion 32 is sandwiched between the lower die 11.
[0027]
On the other hand, the pin 17 corresponding to the product part 31 is not stopped by the lower mold 11, the product part 31 is pushed down into the opening 11 a, the connecting part 33 is broken, and the product part 31 and the peripheral part 32 are separated. To do.
[0028]
In this case, the connecting portion 33 connects the product portion 31 and the peripheral portion 32 so as to be freely broken. In the present embodiment, for example, the connecting portion 33 includes a plurality of connecting points between the product portion 31 and the peripheral portion 32. Yes.
[0029]
As described above, according to the present embodiment, after the position of the pin 17 is adjusted in accordance with the shape of the work 30, the pin 17 is pressed and held by the expansion tube 20. Next, the work 30 is placed on the lower mold 11 so that the product part 31 is on the opening 11a, and the upper mold 15 having the plurality of pins 17 is simply lowered, and the peripheral part is formed by the pins 17 corresponding to the peripheral part 32. The pin 17 corresponding to the product portion 31 is lowered and the connecting portion 33 can be broken to separate the product portion 31 and the peripheral portion 32 from each other. In this way, it is not necessary to prepare or convert the upper mold 15 in accordance with the shape of the product portion 31, so that the work die cutting operation can be facilitated.
[0030]
【The invention's effect】
As described above, according to the present invention, the upper die is not changed every time corresponding to the shape of the product part of the work, and even if the shape of the product part changes, the position of the pin is adjusted each time, A product part can be pressed with a pin, after fixing a pin with an expansion tube. For this reason, it is possible to efficiently perform the work die cutting operation.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a work die cutting apparatus according to the present invention.
FIG. 2 is a side view showing a support plate of a work die cutting apparatus according to the present invention.
FIG. 3 shows an expansion tube.
FIG. 4 is a diagram showing an arrangement relationship between an expansion tube and a pin.
FIG. 5 is a diagram showing a state in which a pin is pressed and held by an expansion tube.
FIG. 6 is a diagram showing a work die cutting system.
FIG. 7 is a side view showing a conventional work die cutting apparatus.
FIG. 8 is a perspective view showing a conventional work die cutting apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Work die removal apparatus 11 Lower die 15 Upper die 16 Support plate 16a Upper support plate 16b Lower support plate 17 Pin 20 Expansion tube 21 Rubber tube main body 22 Covering material 23 Air source 30 Work 31 Product part 32 Peripheral part

Claims (4)

In a workpiece die cutting device for punching a workpiece composed of a product portion and a peripheral portion connected to the product portion via a detachable connecting portion,
One mold that is located below and formed with an opening corresponding to the product part of the workpiece,
Pressing the workpiece between one mold, breaking the connecting portion of the workpiece and separating the workpiece into a product portion and a peripheral portion, and the other die positioned above ,
The other mold has a support plate, a plurality of pins attached to the support plate so as to advance and retreat, and a fixing means for fixing the pins to the support plate.
The fixing means is composed of an expansion tube disposed between the pins on the support plate and an air supply source for supplying air into the tube.
The pin is fixed to the support plate by the expansion tube that expands by supplying air into the expansion tube ,
A plurality of pins attached to the support plate are regularly arranged in a multi-row and a multi-stage on a plane, the expansion tube extends in a comb shape between the pins, and one type of opening corresponds to the product part of the workpiece. Its shape becomes variable,
Of the plurality of pins, the pin corresponding to the peripheral part of the work is drawn into the support plate side, the pin corresponding to the product part of the work protrudes from the support plate,
When pressing a workpiece between one mold and the other mold, the peripheral part of the work is sandwiched between one mold and a pin corresponding to the peripheral part of the work, and the product part of the work is broken from the peripheral part. A workpiece die-cutting device, wherein the workpiece is dropped into the opening of one die by a pin corresponding to the product portion of the workpiece.   2. The work die cutting apparatus according to claim 1, wherein the expansion tube comprises a rubber tube main body and a covering material that covers the rubber tube main body. 2. The work die cutting apparatus according to claim 1, wherein the support plate includes an upper support plate and a lower support plate, and the expansion tube is sandwiched between the upper support plate and the lower support plate.   2. The work die cutting apparatus according to claim 1, wherein the expansion tube is in contact with or not in contact with each pin when air is not supplied, and the air is supplied to press and hold each pin. .

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