Punching device

A blowing device and cutting blade technology, applied in the field of machinery, can solve the problems of high production cost, high working power, incomplete punching, etc., and achieve the effect of easy operation of the device, high waste drop rate and low production cost

Inactive Publication Date: 2016-01-13
XIAMEN YONGHONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not applicable to certain types of punching devices (such as those applied to lead frames), because: in order to avoid splashing of waste materials, the punches of this type of punching device and the through holes on the die are structures that match the shape. There is no extra space in the assembly structure. If a gas device is installed on the cutting edge of the punch, the punch cannot be punched at the position where the gas device is

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example one:

[0024] Reference Figure 1 to Figure 5 As shown, a preferred punching device provided by this embodiment includes: a punch 20, a discharge plate 30, and a female mold 40. The punching edge of the punch 20 is provided with a vent groove 201 of length L. , The discharge plate 30 and the concave mold 40 are provided with a discharge plate through hole 301 and a concave mold through hole 401 that match the shape of the punch, and the discharge plate 30 side to the discharge plate through hole 301 is provided with The air passage 302 corresponding to the vent groove 201 of the punch 20, the thickness of the discharge plate 30 is H, and the distance from the air passage 302 to the bottom surface of the discharge plate 30 is h, then the length L of the vent groove 201 satisfies h≤L≤H .

[0025] In this embodiment, the length L of the vent groove 201 satisfies h≤L≤H to ensure that during the punching operation, the air flow of the air passage 302 is blown into the v...

Example Embodiment

[0030] Example two:

[0031] In this embodiment, the convex mold 20 and the concave mold 40 have the same structure as that of the first embodiment. The only difference is that the inlet of the air passage 302 of the discharge plate 30 of this embodiment is provided on the upper surface of the discharge plate 30. During the punching operation, the gas of the gas device enters through the inlet of the air passage 302 on the upper surface of the unloading plate 30, and the air flow of the air passage 302 flows to the vent groove 201 of the punch 20, and then is guided to the female die by the vent groove 201 In the direction of the through hole 401, after the cut product 10 is punched, the waste material 101 is blown out of the through hole 401 of the die under the air flow.

[0032] In this embodiment, the inlet of the air passage 302 of the unloading plate 30 is set on the upper surface of the unloading plate 30, which can shorten the distance of the air passage 302 when the throug...

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PUM

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Abstract

The invention relates to a punching device which is simple and convenient to operate, low punching waste drop rate and low in production cost. The punching device comprises a convex die, a concave die and a discharging plate, wherein an air channel is formed in the side surface of the discharging plate; a vent groove is formed in a punching cutting edge of the convex die; high-pressure of the air channel flows into the vent groove of the punching cutting edge of the convex die and is guided by the vent groove to be discharged by a through hole of the concave die during operation of punching; when the high-pressure air is discharged, the punched waste is pushed to drop smoothly. The punching device is high in waste drop rate, simple and convenient to operate and low in production cost.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a punching device with simple operation, high drop rate of small punching waste and low production cost. Background technique [0002] The existing punching device generally includes a frame, a conveying mechanism, a die, a punch and a lifting control mechanism for the punch, the size and shape of the punch match the size and shape of the die, and the conveying mechanism and the die are installed on the machine. On the rack, the punch is above the die and connected with the punch lifting control mechanism. The function of the punch lifting control mechanism is to drive the punch to move up and down, usually powered by an electric motor, a hydraulic cylinder or an air cylinder. Usually the above-mentioned punching device is also equipped with a guide mechanism, which can guide the position of the punch and the die to close the die accurately. The guide mechanism generally includes a guid...

Claims

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Application Information

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IPC IPC(8): B21D37/10B21D45/00
CPCB21D37/10B21D45/00
Inventor 丘文雄林桂贤丛艳丽洪玉云
Owner XIAMEN YONGHONG TECH
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