A waste suction device for punching die

Abstract

The utility model discloses a waste suction device for a punching die, comprising an internal waste collection box and an external waste collection box connected through a material guide channel; the internal waste collection box is internally mounted relative to the punching die to correspond to the material receiving portion of the blanking hole; the external waste collection box is externally mounted relative to the punching die; the internal pressure of the external waste collection box is variable, and when the internal pressure of the external waste collection box is in a negative pressure state, a waste suction transfer structure is formed to transfer materials from the internal waste collection box to the external waste collection box by suction. The utility model removes waste generated by the punching operation in a timely manner by suctioning waste, thereby avoiding damage to the die, and the removal efficiency is high and more thorough.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste removal of punching dies, and in particular relates to a waste suction device for punching dies. Background Art

[0002] In the process of punching small holes in cold punching dies, a lot of tiny punching waste will be generated. If not cleaned in time, it will accumulate inside the mold and cause scratches on the product. In severe cases, it will cause damage to the mold. In addition, manual removal of waste is time-consuming and labor-intensive, and there are safety hazards. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a waste suction device for a punching die, which can promptly remove the waste generated by the punching operation by sucking the waste, thereby avoiding damage to the die, and the removal efficiency is high and more thorough.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a waste suction device for a punching die, comprising a built-in waste collection box and an external waste collection box connected by a material guiding channel; the built-in waste collection box is built into the punching die to correspond to the material receiving portion of the blanking hole; the external waste collection box is external to the punching die; the internal pressure of the external waste collection box is variable, and when the internal pressure of the external waste collection box is in a negative pressure state, a waste suction transfer structure is formed to transfer materials from the built-in waste collection box to the external waste collection box by suction.

[0005] Furthermore, the waste holding portion of the built-in waste collecting box is vibratingly arranged relative to the punching die.

[0006] Furthermore, the inner bottom of the waste holding portion of the built-in waste collecting box is an inclined structure that gradually converges from both ends to the middle, and the bottom end of the inclined structure is a discharge port connected to the material guiding channel.

[0007] Furthermore, the built-in waste collection box includes an outer box body, an inner box body and an elastic inner support member; the outer box body is connected to the lower mold structure of the punching mold, and the inner box body is supported by the elastic inner support member and is located in the outer box body, and the waste holding part of the built-in waste collection box is the inner box body.

[0008] Furthermore, it comprises a vibration driving part, and the vibration driving part is fixedly installed relative to the inner box body.

[0009] Furthermore, the feeding end of the material guiding channel is a flexible tube portion, and the flexible tube portion is butted in the interlayer between the outer box body and the inner box body.

[0010] Furthermore, the edge of the box opening of the inner box body extends outward to form a flange structure, and the flange structure extends beyond the end edge of the box opening of the outer box body to cover the opening of the interlayer between the outer box body and the inner box body.

[0011] Furthermore, it comprises a material suction driving part corresponding to the external waste collection box, and the material suction driving part provides driving force for the external waste collection box to suck waste.

[0012] Beneficial effect: The utility model can timely remove the waste generated by the punching operation by sucking the waste, so as to avoid damage to the mold, and the removal efficiency is high and more thorough, wherein the waste first falls into the built-in waste collection box through the drop hole due to its own weight, and the negative pressure state of the external waste collection box forms a suction effect, and the waste in the built-in waste collection box is sucked into the external waste collection box through the material guide channel, thereby realizing the waste removal function, and then the external waste collection box can be cleaned regularly, saving labor costs and eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings.

[0015] As attached Figure 1 As shown, a waste suction device for a punching die comprises a built-in waste collection box 2 and an external waste collection box 3 which are connected through a material guiding channel 4; the built-in waste collection box 2 is built-in relative to the punching die 1 to correspond to the material receiving hole 10; the external waste collection box 3 is external to the punching die 1; the internal pressure of the external waste collection box 3 is variable, and when the internal pressure of the external waste collection box 3 is in a negative pressure state, a waste suction transfer structure is formed which transfers the material from the built-in waste collection box 2 to the external waste collection box 3 by suction. The utility model can timely remove the waste generated by the punching operation by sucking the waste, so as to avoid damage to the mold, and the removal efficiency is high and more thorough, wherein the waste first falls into the built-in waste collection box 2 through the drop hole 10 due to its own weight, and the negative pressure state of the external waste collection box 3 is formed to form a suction effect, and the waste in the built-in waste collection box 2 is sucked into the external waste collection box 3 through the material guide channel 4, so as to realize the waste removal function, and then the external waste collection box 3 can be cleaned regularly, thereby saving labor costs and eliminating safety hazards.

[0016] The waste is generally in the form of sheets. In order to ensure that the waste can be sucked away by suction, the waste holding portion of the built-in waste collection box 2 is vibrated and movable relative to the punching die 1 to vibrate the waste, thereby facilitating the movement of the waste under the action of suction and allowing it to be sucked away and removed more efficiently and thoroughly.

[0017] In order to gather the waste and reach the outlet of the built-in waste collection box 2 for easy suction, in the utility model, the inner bottom of the waste holding part of the built-in waste collection box 2 is an inclined structure that gradually converges from both ends to the middle, and the bottom end of the inclined structure is the outlet connected to the material guide channel 4.

[0018] The built-in waste collection box 2 includes an outer box body 5, an inner box body 6 and an elastic inner support member; the outer box body 5 is connected to the lower mold structure of the punching die 1, and the inner box body 6 is supported by the elastic inner support member and is located in the outer box body 5. The waste holding part of the built-in waste collection box 2 is the inner box body 6. The elastic inner support member includes a vertical support spring 7 and a transverse support spring 8. The vertical support spring 7 and the transverse support spring 8 are in the interlayer between the outer box body 5 and the inner box body 6 to elastically support the inner box body 6. The utility model includes a vibration drive unit 9, which is fixedly installed relative to the inner box body 6. The vibration drive unit 9 is preferably a vibrator. Under the drive of the vibrator, the inner box body 6 vibrates.

[0019] In order to cope with the structural characteristics of the built-in waste collection box 2, the structure of the material guiding channel 4 needs to be improved as follows: the feeding end of the material guiding channel 4 is a flexible tube portion 40, and the flexible tube portion 40 is docked in the interlayer between the outer box body 5 and the inner box body 6.

[0020] The edge of the box opening of the inner box body 6 extends outward to form a flange structure 11, and the flange structure 11 extends beyond the end edge of the box opening of the outer box body 5 to cover the opening of the interlayer between the outer box body 5 and the inner box body 6. After the opening of the interlayer is covered, waste can be prevented from entering the interlayer even if an accident occurs.

[0021] The utility model comprises a suction drive unit 12 corresponding to the external waste collection box 3, and the suction drive unit 12 provides a driving force for the external waste collection box 3 to suck waste. The suction drive unit 12 is preferably an exhaust fan.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A waste suction device for a punching die, characterized in that: The invention comprises an internal waste collection box (2) and an external waste collection box (3) which are connected via a material guide channel (4); the internal waste collection box (2) is internally mounted relative to a punching die (1) to correspond to a material receiving hole (10); the external waste collection box (3) is externally mounted relative to the punching die (1); the internal pressure of the external waste collection box (3) is variable, and when the internal pressure of the external waste collection box (3) is in a negative pressure state, a waste suction transfer structure is formed to transfer materials from the internal waste collection box (2) to the external waste collection box (3) by suction.

2. A waste suction device for a punching die according to claim 1, characterized in that: The waste holding portion of the built-in waste collection box (2) is arranged to vibrate relative to the punching die (1).

3. A waste suction device for a punching die according to claim 2, characterized in that: The inner bottom of the waste holding portion of the built-in waste collection box (2) is an inclined structure that gradually converges from both ends to the middle, and the bottom end of the inclined structure is a discharge port connected to the material guide channel (4).

4. A waste suction device for a punching die according to claim 3, characterized in that: The built-in waste collection box (2) comprises an outer box body (5), an inner box body (6) and an elastic inner support member; the outer box body (5) is connected to the lower mold structure of the punching mold (1), and the inner box body (6) is supported by the elastic inner support member and is located in the outer box body (5); the waste holding part of the built-in waste collection box (2) is the inner box body (6).

5. A waste suction device for a punching die according to claim 4, characterized in that: It comprises a vibration driving part (9), wherein the vibration driving part (9) is fixedly installed relative to the inner box body (6).

6. A waste suction device for a punching die according to claim 4, characterized in that: The feeding end of the material guiding channel (4) is a flexible tube portion (40), and the flexible tube portion (40) is butted in the interlayer between the outer box body (5) and the inner box body (6).

7. A waste suction device for a punching die according to claim 6, characterized in that: The edge of the box opening of the inner box body (6) extends outward to form a flange structure (11), and the flange structure (11) extends beyond the end edge of the box opening of the outer box body (5) to cover the opening of the interlayer between the outer box body (5) and the inner box body (6).

8. A waste suction device for a punching die according to any one of claims 1 to 7, characterized in that: It comprises a material suction drive unit (12) corresponding to the external waste collection box (3), and the material suction drive unit (12) provides the external waste collection box (3) with a driving force for sucking waste.

Images