JP3090214B2 - Automatic paper cutting machine scrap removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to a scrap removing device for an automatic paper punching machine.

<Prior Art> Generally, an automatic paper punching machine includes a paper feeding process, a punching process,
A machine in which the waste removal process and the unloading process are performed consistently. At the paper feeding position, the paper to be processed is supplied to a holder provided at a constant interval on a conveyor such as a chain conveyor, and is sandwiched via the holder. The transported paper is transported to the punching position by the transport device, and after the workpiece paper is punched at the punching position, the transported paper is transported to the scraping position by the transport device. The waste area is removed, and then the sheet is transported to a loading position by a transport device. At the loading position, the paper to be processed (product) is stacked by releasing the sandwich of the paper to be processed by the holder.

In the punching process, a punching die in which an industrial cutting tool such as a pressing blade or a sewing machine blade is embedded in a groove formed in a substrate such as a plywood plate is provided above the paper to be processed at the punching position. This is performed by disposing a receiving plate that receives the reaction force of the punching die while supporting the processing paper under the processing paper, and pressing the cutting edge of the punching die against the processing paper supported by the receiving plate. At this time, if the waste area to be punched is completely cut, the fallen waste accumulates on the receiving plate, making it difficult to punch the next paper to be processed. As shown in FIGS. 3 (a) and 3 (b), a method of providing a connecting portion k is commonly used.

In the chip removal processing, the joint portion k is destroyed and the chip area is dropped, and a punching pin is provided above the paper to be processed in accordance with the chip area, and a punching pin corresponding to the punching pin is provided. This is performed by disposing a lower pin with a spring below the paper to be processed and lowering the punching pin to punch out the waste area of the paper to be processed. That is, when the punching pin descends, the dust area of the paper to be processed is pressed and sandwiched between the spring-loaded lower pin and the spring-loaded lower pin resists the urging force of the spring. By sinking and
The connecting portion k of the waste area is cut off from the paper to be processed. Then, the separated waste area falls down due to the small area of the upper end of the lower pin with spring.

Each time the type of the paper to be processed is changed, that is, each time the number and the formation position of the waste area change, the number of the punching pins and the arrangement position thereof need to be determined in accordance with the waste area. A conventional device for positioning such a punching pin at a predetermined position includes, for example, a Y-axis support 10A, which is fixed to both left and right sides of the entire paper size as shown in FIG. 10B and the Y-axis supports 10A, 10B
A plurality of X-axis movable beams 11, which are slidably bridged along and can fix both ends to arbitrary positions of Y-axis supports 10A and 10B.
.. and slidably fitted along each X-axis movable beam 11,
And a plurality of pin supports 12 that can be fixed to predetermined positions of the X-axis movable beam 11. Each pin support 12 is provided with a punching pin 13 whose arm length and arm direction can be adjusted. As a result, the punching pins 13 can be arranged in accordance with the waste area of the paper to be processed.

Although not shown in detail, the lower pin with spring is configured so that it can be arranged at any position in the X-axis direction and the Y-axis direction, similarly to the punching pin 13.

<Problems to be Solved by the Invention> By the way, the number of punching pins is as large as one hundred and several tens when there is a large amount of waste area of the paper to be processed, and the positioning of these punching pins is performed manually. . In addition, the lower pin with spring disposed below the paper to be processed also needs to be similarly manually positioned so as to abut the punching pin described above. As a result, a large amount of time is required for a setup operation for positioning a large number of punching pins and a lower pin with a spring in accordance with a waste area of a paper to be processed, and a heavy burden is imposed on an operator. .

The present invention has been made in view of such a problem, and eliminates the need for a plurality of spring-loaded lower pins disposed below the paper to be processed, thereby eliminating the need for the positioning operation and reducing the waste area. The present invention is to provide a scrap removing device in an automatic paper punching machine which can surely separate the paper from the paper to be processed and discharge it to a predetermined position.

<Means for Solving the Problems> According to the present invention, a transport device capable of intermittently transporting a paper to be processed, and a positioning device corresponding to a waste area of the paper to be transported to a waste removal position by the transport device. A male plate that has a punching pin and can be moved up and down between a retreat position that retreats above the waste removal position and a processing position that punches out the waste area of the paper to be processed, and a waste area of the paper to be processed at the waste removal position An opening substantially corresponding to the waste area is formed at a corresponding position, and a female plate capable of moving up and down between a retracted position retracted below the waste removal position and a support position supporting the processed paper, A female plate comprising a plurality of rollers and an endless elastic body wound between the rollers, and a lowering of the female plate raised to the support position, in which the conveying side surface of the endless elastic body is close to the processing position and the retracted position. Up and down between the evacuation position to retract from the underside of the Belt conveyor, and a receiving plate that is disposed close to the transfer-side back surface of the endless elastic body of the belt conveyor and that can move up and down integrally with the belt conveyor, and the belt conveyor and the receiving plate together with the female plate. By raising to the supporting position and the processing position, respectively, and by lowering the male plate, the waste area of the paper to be processed is pressed by a punching pin and separated from the endless elastic body supported by the receiving plate, on the other hand,
By driving the belt conveyor in a state where the belt conveyor and the receiving plate are respectively lowered to the retracted position together with the female plate, the waste area remaining on the conveying side surface of the endless elastic body is carried out. is there.

<Operation> When the punched work paper is conveyed to the chip removal position by the conveyance device and stopped, the female plate is raised to support the work paper, and the belt conveyor and the receiving plate are raised, and the belt is raised. The transport side surface of the endless elastic body of the conveyor is brought close to the lower surface of the female plate. Thereafter, the male plate is lowered toward the paper to be processed, and the waste area of the paper to be processed is pressed by the punching pin so as to be sandwiched between the elastic body and the paper. At this time, the elastic body is compressed and deformed by being supported by the receiving plate,
The connecting portion of the waste area is cut off from the paper to be processed. Then, while raising the male plate to the original retracted position, the female plate,
Lower the belt conveyor and the receiving plate to the original retracted position. Thereafter, the belt conveyor is driven, and the waste area remaining on the endless elastic body is carried out from the transport end.

As a result, the waste area can be reliably separated from the paper to be processed, and the lower pin with the spring disposed below the paper to be processed in accordance with the punching pin becomes unnecessary. No positioning work is required. Therefore, it is possible to greatly reduce the setup work that has been performed each time the type of paper to be processed changes,
The burden on the worker can be reduced. Further, the separated waste area can be carried out from the transport end to a fixed position by the belt conveyor.

<Embodiment> Fig. 1 schematically shows an embodiment of a scrap removing device 1 of an automatic paper punching machine according to the present invention.

FIG. 3 shows an example of processing the paper P to be processed. FIG. 3 (A) is an example in which the clothing material sticking portion of the clothing sample book is an opening, and FIG. 3 (B) is a packaging box for a beverage container,
This is an example in which semicircular cuts for opening are continuously provided, and FIGS. 3 (a) and 3 (b) are partially enlarged views of FIGS. 3 (A) and 3 (B).

The scraping device 1 of the automatic paper punching machine includes a male plate 2 disposed above the paper P to be conveyed and stopped at a chip removing position, and a male plate 2 facing the male plate 2. It is composed of a female plate 3 disposed below and a receiving plate 5 disposed below the female plate 3 and having an elastic body 4 attached thereto.

The male plate 2 can be moved up and down between a retracted position by a cam (not shown) and a processing position for punching out the waste area of the paper P to be processed, and has a large number of punching pins 21 projecting downward. . These punching pins 21 can be arranged corresponding to the waste area of the paper P to be processed as shown in the conventional example. Therefore, when the male plate 2 descends to the processing position, each punching pin 21
Waste area can be pressed.

The female plate 3 is a thin plate having a thickness of 1 to 1.5 mm, and is configured to be able to move up and down between a retracted position and a support position of the paper P to be processed by a cam (not shown), similarly to the male plate 2. The female plate 3 has an opening 3a slightly larger than the waste area at a position corresponding to the waste area of the paper P to be processed. Therefore, when the female plate 3 moves up to the supporting position, the processed paper P can be supported. Then, when the above-mentioned male plate 2 descends and presses the waste area of the paper P to be processed by the punching pin 21,
A shearing force can be applied to the punching line, in particular, to the connecting portion k. In this case, the reason why the thickness of the female plate 3 is 1 to 1.5 mm, which is thinner than the conventional one, is to prevent the waste area from being caught and stopped by the opening 3a.

The elastic body 4 is formed of rubber, sponge, or the like. In this embodiment, the elastic body 4 is exemplified by a sponge rubber having a thickness of 30 to 50 mm attached to the entire upper surface of the receiving plate 5.

The receiving plate 5 can be moved up and down between a retracted position and a processing position by a cam (not shown), and the above-described elastic body 4 is attached thereto. Therefore, when the receiving plate 5 is raised to the processing position,
The upper surface of the elastic body 4 attached to the receiving plate 5 can be brought close to the lower surface of the female plate 3 supporting the paper P to be processed.
Then, when the waste area of the paper P to be processed is pressed by the punching pin 21 of the male plate 2 described above, the waste area of the paper P to be processed is adhered to the punching pin 21 of the male plate 2 and the receiving plate 5. At this time, the elastic body 4 is compressed and deformed by being supported by the receiving plate 5, the connecting portion k is sheared, and the waste area is cut off.

When the receiving plate 5 is lowered to the retracted position, the receiving plate 5
The compressed air jet nozzles 6 are arranged around the upper surface of the elastic body 4 attached to the elastic body 4. By ejecting the compressed air from the ejection nozzle 6, a waste area remaining on the upper surface of the elastic body 4 can be eliminated.

Next, the operation of the dust removal device 1 configured as described above will be described.

In the initial state, the male plate 2, the female plate 3, and the elastic body 4
The receiving plate 5 to which is adhered is at the retracted position, and the paper P to be processed can be carried in.

When the transporting device is driven from such an initial state, the processed paper P punched out while leaving the connecting portion k in the preceding punching step is transported from the punching position to the chip removing position. Then, when the processing paper P reaches the waste removal position, the transport device stops.

Next, the receiving plate 5 to which the female plate 3 and the elastic body 4 are adhered
Are raised to the support position and the processing position, respectively.
In addition to supporting the paper P to be processed, the upper surface of the elastic body 4 is brought close to the lower surface of the female plate 3 raised to the position where the paper P is supported. Subsequently, the male plate 2 is lowered to the processing position, and the waste area of the paper P to be processed is pressed by the punching pins 21. When the male plate 2 is further lowered, the waste area of the paper P to be processed sandwiched between the punching pins 21 of the male plate 2 and the elastic body 4 attached to the receiving plate 5 is supported by the receiving plate 5. As a result, the elastic body 4 is compressed and deformed, so that the joint portion k is sheared and the waste area is cut off.

When the male plate 2 reaches the bottom dead center, the process proceeds to the ascending step, and reaches the retreat position and stops. Further, the receiving plate 5 to which the female plate 3 and the elastic body 4 are attached also descends from the supporting position and the processing position, respectively, reaches the retreat position and stops. For this reason, the processed paper P from which the waste area has been separated can be transported to the next loading step by the transport device.

On the other hand, when the receiving plate 4 is lowered to the retracted position,
Above, a separated waste area remains. Here, when the compressed air is ejected from the ejection nozzle 6, the waste area remaining on the elastic body 4 is blown off and removed.

As a result, the lower pin with spring disposed below the paper to be processed corresponding to the punching pin 21 can be omitted, and the operation of positioning the lower pin with spring is not required. Therefore, the setup time can be significantly reduced, and the burden on the operator can be reduced. Further, the separated waste area can be eliminated from the elastic body.

By the way, in the above-described embodiment, the case where the elastic body 4 is adhered to the receiving plate 5 and the dust area remaining on the elastic body 4 is eliminated by the compressed air ejected from the ejection nozzle 6 is exemplified. In the embodiment, the blown waste area is scattered to the surroundings, and it is necessary to finally collect the scattered waste area.

Corresponding to such a point, FIG. 2 shows another embodiment of the waste removing apparatus 1 which can discharge the waste area to a predetermined position without scattering.

Also in this embodiment, the same members as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 2, an elastic body 4 is wound endlessly between rollers 7 to form a belt conveyor 8. The receiving plate 5 is disposed close to the transport-side back surface of the endless elastic body 4 of the belt conveyor 8. In this case, both are integrally connected so that the belt conveyor 7 also moves up and down in conjunction with the elevating and lowering of the receiving plate 5.

Also in this embodiment, when the processing paper P is conveyed to the scrap removal position from the punching step and stopped, the belt conveyor 8 is raised together with the female plate 3 and the receiving plate 5, and the processing paper P is supported by the female plate 3. At the same time, the transport-side surface of the endless elastic body 4 of the belt conveyor 8 is brought close to the lower surface of the female plate 3. Next, the male plate 2 is lowered to the processing position,
The waste area of the paper P to be processed is pressed by the punching pin 21. When the male plate 2 is further lowered, the waste area of the paper P to be processed is sandwiched between the punching pins 21 of the male plate 2 and the endless elastic body 4, and is supported by the receiving plate 5 at that time. When the endless elastic body 4 is compressed and deformed, the connecting portion k is sheared and the waste area is cut off. Thereafter, the male plate 2 is raised to the retreat position, and the belt conveyor 8 together with the female plate 3 and the receiving plate 5 is lowered to the retreat position.

When the receiving plate 5 is lowered to the retracted position, the cut waste area remains on the surface of the endless elastic body 4 of the belt conveyor 8 on the conveyance side. Here, when the belt conveyor is driven, the endless elastic body 4 moves around the roller 7, and the waste area remaining on the conveyance side surface of the endless elastic body 4 can be discharged from the conveyance end. .

As a result, also in this embodiment, the lower pin with spring disposed below the paper to be processed corresponding to the punching pin can be omitted, and the operation of positioning the lower pin with spring is not required. Therefore, the setup work time can be reduced, and the burden on the operator can be reduced. Further, the cut waste area can be carried out to a predetermined position from the conveyance end of the belt conveyor 8.

<Effects of the Invention> According to the present invention, the waste area can be reliably separated from the paper to be processed, and the lower pin with a spring disposed below the paper to be processed in accordance with the punching pin becomes unnecessary. In addition, the work of positioning the lower pin with the spring is not required. Therefore, the setup work that has been performed each time the type of paper to be processed changes can be significantly reduced, and the burden on the operator can be reduced. Further, the separated waste area can be carried out from the transport end to a fixed position by the belt conveyor.

[Brief description of the drawings]

FIG. 1 is an explanatory view schematically showing one embodiment of a scrap removing device for an automatic paper punching machine according to the present invention. FIG. 2 is an explanatory view schematically showing another embodiment of the scrap removing device of the automatic paper punching machine. Third
FIGS. 1A and 1B are diagrams showing an example of a waste area of a paper to be processed processed by an automatic paper punching machine, and FIGS. 1A and 1B are partially enlarged views. FIG. 4 is a perspective view showing a positioning method of a punching pin constituting a scrap removing device of a conventional automatic paper punching machine. DESCRIPTION OF SYMBOLS 1 ... Scrap removal apparatus 2 ... Male plate 21 ... Pin for punching 3 ... Female plate 3a ... Opening 4 ... Elastic body, endless elastic body 5 ... Receiving plate P ... Paper to be processed

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B26D 7/18 B26F 1/44

Claims (1)

(57) [Claims] A transporting device capable of intermittently transporting the paper to be processed, a punching pin positioned corresponding to a waste area of the paper to be transported to the waste removal position by the transporting device, and A male plate that can be moved up and down between a retracted position that retreats above the take-up position and a processing position that punches out the waste area of the paper to be processed, and the waste area at a position corresponding to the waste area of the paper at the waste removal position. An opening that substantially coincides is formed, and a female plate that can move up and down between a retreat position that retreats below the debris removal position and a support position that supports the paper to be processed, a plurality of rollers, and a plurality of rollers. A retreat position for retreating from the lower surface of the female plate lowered to the processing position where the transport side surface of the endless elastic body is close to the lower surface of the female plate raised to the support position and the lower surface of the female plate raised to the support position; A belt conveyor that can move up and down between And a receiving plate that is disposed adjacent to the transfer-side back surface of the endless elastic body of the conveyor and that can move up and down integrally with the belt conveyor. In addition, by lowering the male plate, the waste area of the paper to be processed is pressed by a punching pin and separated from the endless elastic body supported by the receiving plate,
An automatic paper feeding device, wherein the belt conveyor is driven in a state where the belt conveyor and the receiving plate are respectively lowered to the retracted position together with the female plate, so that a waste area remaining on the conveying side surface of the endless elastic body is discharged. Dust removal device for punching machine.