Parts stamping waste cleaning device

Abstract

This application relates to a waste removal device for stamping parts, belonging to the field of stamping equipment. It includes an upper die, a lower die, a lifting component, a punch, an air pump, and an air supply pipe. The lower die has a punch hole for coaxial insertion of the punch. The air supply pipe is connected to the air pump and the lower die at both ends. An air supply branch pipe is provided inside the lower die, connecting the air supply pipe and the hole wall of the punch hole. Gas enters the punch hole, forming an air curtain for the punch to pass through. A collection box is connected to the lower end face of the lower die, communicating with the punch hole. The punch is equipped with an isolation component to separate the punch and waste material after insertion into the punch hole. This application uses the isolation component to create a gap between the waste material and the punch. When the punch moves upward through the air curtain, the waste material is blown away from the punch, thus achieving waste removal. Regardless of the punch's movement, the connection between the air supply pipe and the lower die remains stable, enhancing the connection stability between the air supply pipe and the stamping die, and improving the waste removal effect.

Description

Technical Field

[0001] This application relates to the field of stamping equipment, and in particular to a waste removal device for stamping parts. Background Technology

[0002] Dies for stamping workpieces include single-punch dies, compound dies, progressive dies, and high-speed dies. Regardless of the type of die, stamping processes such as punching and cutting process openings will generate waste material. To prevent waste from splashing and affecting the stamping effect, stamping dies are equipped with waste removal devices.

[0003] Currently, when stamping dies are used for punching, a punch is installed on the upper die, and a waste collection box is installed on the lower die directly opposite the punch. To ensure that the punched waste falls into the waste collection box, the punch is connected to an air pump via an air supply pipe, and an air passage is opened on the lower end face of the punch to connect to the air supply pipe. After the punch moves downward to punch the workpiece, the waste adheres to the punch. The air pump inflates the air supply pipe, and the airflow can blow towards the waste through the air passage, thereby blowing the waste away from the punch and downward to the waste collection box, achieving the effect of cleaning up the waste.

[0004] As the punch moves up and down to punch holes, the air supply pipe also shakes. The shaking amplitude of the air supply pipe on the stamping die in high-speed punching is even greater. Under the intensity of high-speed stamping for a long time, the connection between the air supply pipe and the punch may loosen or even fall off, affecting the sealing between the punch and the air supply pipe, making the air pressure of the airflow entering the air channel unstable, and reducing the effect of waste removal. Summary of the Invention

[0005] In order to enhance the connection stability between the gas pipeline and the stamping die and improve the waste cleaning effect, this application provides a waste cleaning device for stamping parts.

[0006] The technical solution of the waste cleaning device for stamping parts provided in this application is as follows:

[0007] A waste cleaning device for stamping parts includes an upper template, a lower template, a lifting component, and a punch. The lifting component drives the upper template to move vertically up and down to approach or move away from the lower template. The punch is installed on the upper template. The upper end face of the lower template has a punch hole for the punch to be inserted coaxially. The device also includes an air pump and an air supply pipe. The two ends of the air supply pipe are respectively connected to the air pump and the lower template. The lower template has an air supply branch pipe that connects the air supply pipe and the hole wall of the punch hole. Gas enters the punch hole to form an air curtain for the punch to pass through. The lower end face of the lower template is connected to a collection box for collecting waste. The collection box is connected to the punch hole. The punch is provided with an isolation component for isolating the punch and the waste after the punch is inserted into the punch hole.

[0008] By adopting the above technical solution, when the stamping die is working, the workpiece is placed on the lower platen, and the punch falls to punch a hole in the workpiece. Afterwards, the punch, along with the waste material, enters the hole. The isolation component can create a gap between the waste material and the punch. When the punch moves upward and passes through the air curtain, the waste material can be blown away from the punch, thereby cleaning the waste material. At this time, no matter how the punch rises or falls, the position of the lower platen remains unchanged, and the connection between the air supply pipe and the lower platen is stable. Compared with the existing technology, the connection stability between the air supply pipe and the stamping die is strengthened, and the waste material cleaning effect is improved.

[0009] Optionally, the isolation assembly includes an isolation pin, a reset spring, and a pressing member;

[0010] The lower end face of the punch is coaxially provided with an isolation sliding hole for the isolation pin to slide vertically. The return spring is located in the isolation sliding hole on the side of the isolation pin away from the lower template. The return spring connects the isolation pin and the bottom of the isolation sliding hole. The pressing member is connected to the isolation pin and is used to push the isolation pin downward to push away the waste material after the punch is inserted into the punch hole.

[0011] By adopting the above technical solution, in the initial state, the isolation pin is located inside the isolation sliding hole, and the lower end face of the isolation pin is flush with the lower end face of the punch. When the punch carries the scrap material into the punch hole, the punch continues to move downward. At this time, the pressing component pushes the isolation pin downward, and the lower end face of the isolation pin slides out of the isolation sliding hole and pushes the scrap material downward to separate from the punch, and the isolation spring extends. When the punch moves upward, the isolation spring can drive the isolation pin upward until it is completely inside the punch, so that the punch can repeatedly punch the workpiece.

[0012] Optionally, the pressing component includes a pressing slide rod and a pressing spring;

[0013] The outer peripheral wall of the punch has a horizontally formed downward sliding hole for the downward sliding rod to slide. The downward sliding hole is connected to the isolation sliding hole. The downward spring is arranged along the sliding direction of the downward sliding rod. The two ends of the downward spring are respectively connected to the downward sliding rod and the punch. One end of the downward sliding rod passes through the punch and has a pushing inclined surface. After the downward sliding rod abuts against the workpiece, it slides along the direction close to the isolation sliding hole through the pushing inclined surface. The peripheral wall of the isolation pin has a downward pressing inclined surface that slides against the other end of the downward sliding rod. When the isolation pin slides into the isolation sliding hole, it is pushed downward by the downward pressing inclined surface.

[0014] By adopting the above technical solution, when the punch continues to slide down into the punch hole after punching the workpiece, the downward sliding rod moves down to abut against the workpiece. As the punch continues to move down, the pushing inclined surface of the downward sliding rod abuts against the upper surface of the workpiece and pushes the downward sliding rod to move in the direction close to the isolation pin. By sliding against the downward inclined surface, the isolation pin moves vertically downward, so as to achieve the effect of the isolation pin pushing the waste away from the punch.

[0015] Optionally, the pushing inclined surface is arranged at an angle from top to bottom along the direction close to the isolation sliding hole, and the pressing inclined surface is arranged at an angle from top to bottom along the direction close to the pressing sliding hole.

[0016] By adopting the above technical solution, the inclined direction of the inclined surface is used to achieve the effect of the workpiece pushing the downward sliding rod to move in the direction close to the isolation pin, and the inclined direction of the downward sliding surface is used to achieve the effect of the downward sliding rod pushing the isolation pin to move downward.

[0017] Optionally, the distance between the lower end face of the pressing slide rod and the lower end face of the punch is less than the distance between the gas delivery pipe and the upper end face of the lower template.

[0018] By adopting the above technical solution, blowing air into the waste material before the isolation pin pushes it away is less effective than inflating the waste material after the isolation pin pushes it away. This increases the probability of the waste material detaching from the punch. Therefore, the distance between the lower end face of the sliding rod and the lower end face of the punch is less than the distance between the air supply pipe and the upper end face of the lower template, so as to meet the condition of flushing the waste material away when the punch moves upward.

[0019] Optionally, the lower end face of the lower template is provided with a cleaning hole coaxially connected to the punch hole. A cleaning sleeve is threaded into the cleaning hole of the lower template. A cleaning through hole for sliding insertion of the punch is provided on the upper end face of the cleaning sleeve. An air supply channel is provided on the hole wall of the cleaning through hole. One end of the air supply channel is connected to an air supply branch pipe, and the other end of the air supply channel is inclined downward along the axis close to the cleaning through hole.

[0020] By adopting the above technical solution, on the one hand, different models of punches can be used with different types of cleaning sleeves, and on the other hand, by the inclined arrangement of the air supply channel, the waste material can be guided to move downwards at an accelerated speed while being blown away from the punch, shortening the time the waste material spends in the cleaning sleeve, so that the punch can continuously punch the workpiece.

[0021] Optionally, a connector is provided on the side of the gas supply pipe near the cleaning sleeve, and the connector is inserted into the gas supply channel and threadedly connected to the cleaning sleeve.

[0022] By adopting the above technical solution, after the cleaning sleeve is installed on the lower template, it can be screwed into the gas transmission channel through the connector thread, which can strengthen the connection strength and sealing between the gas transmission channel and the gas transmission branch pipe, reduce the connection difficulty between the gas transmission branch pipe and the gas transmission channel, and facilitate subsequent flexible disassembly.

[0023] Optionally, a cleaning ring is provided in the cleaning through hole of the cleaning sleeve, and a placement groove for placing the cleaning ring is coaxially opened on the hole wall of the cleaning through hole. The placement groove is located above the air supply channel. The cleaning ring is made of elastic material and its inner peripheral wall slides against the outer peripheral wall of the punch.

[0024] By adopting the above technical solution, when the punch presses the workpiece, some debris will adhere to various parts of the punch. In order to clean the peripheral wall of the punch, after the punch slides down into the punch hole, the outer peripheral wall of the punch and the inner peripheral wall of the cleaning ring can slide and abut against each other due to the elasticity of the cleaning ring itself. The outer peripheral wall of the punch is cleaned by the cleaning ring, so as to further improve the cleaning effect of the waste.

[0025] Optionally, the inner peripheral wall of the cleaning ring is provided with a plurality of elastic protrusions, which are arranged inclined downward along the axis near the cleaning sleeve.

[0026] By adopting the above technical solution, when the punch slides into the punch hole, the upper end face of the elastic protrusion abuts against the punch and removes the waste debris on the punch. When the punch rises, the lower end face of the elastic protrusion contacts the punch, thereby reducing the probability that the cleaned waste debris will re-adhere to the punch.

[0027] Optionally, the collection box can be detachably installed below the cleaning sleeve. The collection box has a storage cavity for storing waste materials, which is connected to the cleaning through hole. The outer peripheral wall of the collection box has several ventilation holes that are connected to the storage cavity.

[0028] By adopting the above technical solution, the waste material entering the cleaning hole falls into the collection box for collection, and at the same time, the air supply hole is connected through the vent hole to guide the airflow in the cleaning hole to flow downward.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. The isolation component creates a gap between the waste material and the punch. When the punch moves upward and passes through the air curtain, the waste material is blown away from the punch, thus cleaning the waste material. At this time, no matter how the punch moves up and down, the connection between the air supply pipe and the lower platen is stable, which strengthens the connection stability between the air supply pipe and the stamping die and improves the waste material cleaning effect.

[0031] 2. After the punch carries the waste material into the punch hole, the punch continues to move downward, and the pressing part pushes the isolation pin downward, so that the lower end face of the isolation pin can slide out of the isolation sliding hole and push the waste material downward, thereby achieving the effect of separating the waste material from the punch.

[0032] 3. Blowing air into the waste material before the isolation pin pushes it away is less effective than inflating it after the isolation pin pushes it away. This increases the probability of the waste material detaching from the punch. Therefore, the distance between the lower end face of the sliding rod and the lower end face of the punch is less than the distance between the air supply pipe and the upper end face of the lower template to meet the condition of flushing the waste material away when the punch moves upward. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall external structure of an embodiment of this application.

[0034] Figure 2 This is a schematic diagram of the internal structure of the lower template in an embodiment of this application.

[0035] Figure 3 This is a schematic diagram of the internal structure of the punch in an embodiment of this application.

[0036] Figure 4 This is a bottom view of the template in the embodiment of this application.

[0037] In the diagram: 1. Upper template; 2. Lower template; 21. Punch; 22. Air supply pipe; 23. Cleaning hole; 3. Lifting component; 4. Punch; 41. Isolation sliding hole; 42. Downward sliding hole; 5. Air pump; 6. Air supply pipe; 7. Collection box; 71. Storage chamber; 72. Vent hole; 8. Isolation assembly; 81. Isolation pin; 811. Downward inclined surface; 82. Return spring; 83. Downward component; 831. Downward sliding rod; 832. Downward spring; 833. Pushing inclined surface; 9. Cleaning sleeve; 91. Cleaning through hole; 92. Air supply channel; 10. Connector; 11. Cleaning ring; 12. Elastic protrusion. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0039] This application discloses a device for cleaning up waste materials from the stamping process of parts. (Refer to...) Figure 1 and Figure 2 The cleaning device includes an upper template 1, a lower template 2, a lifting component 3, a punch 4, an air pump 5, a lower template 2, and an isolation component 8.

[0040] The upper template 1 is located above the lower template 2. The upper template 1 is vertically raised or lowered by the lifting component 3 to move closer to or away from the lower template 2. The punch 4 is installed on the upper template 1. The upper end face of the lower template 2 has a punch hole 21 for the punch 4 to be inserted coaxially. The two ends of the air supply pipe 6 are connected to the air pump 5 and the lower template 2, respectively. An air supply branch pipe 22 is installed inside the lower template 2. At least two air supply branch pipes 22 are provided and are evenly spaced around the axis of the punch hole 21. One end of the air supply branch pipe 22 is connected to the punch hole 21 and the other end is connected to the air supply pipe 6, so as to blow air onto the punch 4 that slides into the punch hole 21. After the air enters the punch hole 21, it can form an air curtain for the punch 4 to pass through.

[0041] Additionally, the isolation component 8 is mounted on the punch 4 and is used to isolate the waste material from the punch 4 after the punch 4 extends into the punch hole 21, so that the waste material and the punch 4 can be separated when the punch 4 passes through the air curtain. The lower end face of the lower template 2 is connected to a collection box 7, which can collect the falling waste material and keep it away from the punch hole 21 so that the punch 4 can continuously punch the workpiece.

[0042] While the punch 4 is punching the workpiece, lubricant is sprayed onto both the punch 4 and the workpiece. After the punch 4 punches the workpiece, the scrap material, due to its own deformation or the lubricant, adheres to the lower surface of the punch 4 and enters the punch hole 21 along with the punch 4. Then, the isolation component 8 pushes the scrap material downwards to move away from the punch 4, creating a gap between the punch 4 and the scrap material. When the punch 4 rises and passes through the air curtain, the scrap material can be blown away from the punch 4 by the air curtain. Throughout the punching process, the position of the lower die plate 2 remains unchanged, and the connection between the air supply pipe 6 and the lower die plate 2 is stable. Compared with the prior art, this strengthens the connection stability between the air supply pipe 6 and the punching die, and improves the scrap material removal effect.

[0043] Reference Figure 3 The isolation assembly 8 includes an isolation pin 81, a reset spring 82, and a pressing member 83.

[0044] Among them, the lower end face of the punch 4 is coaxially provided with an isolation sliding hole 41 for the isolation pin 81 to slide vertically. The return spring 82 is located in the isolation sliding hole 41 on the side of the isolation pin 81 away from the lower template 2. The return spring 82 connects the isolation pin 81 and the bottom of the isolation sliding hole 41. When the punch 4 is not punching, the lower end face of the isolation pin 81 is flush with the lower end face of the punch 4.

[0045] Secondly, the pressing component 83 includes a pressing slide rod 831 and a pressing spring 832. A pressing slide hole 42 is horizontally formed on the outer peripheral wall of the punch 4, allowing the pressing slide rod 831 to slide. The pressing slide hole 42 connects to the isolation slide hole 41, and the pressing spring 832 is arranged along the sliding direction of the pressing slide rod 831. There may be one pressing slide rod 831, in which case the two ends of the pressing spring 832 are connected to the pressing slide rod 831 and the punch 4, respectively. As shown in the figure, to improve the connection stability between the pressing slide rod 831 and the isolation pin 81, two pressing slide rods 831 are preferably provided. The two pressing slide rods 831 are arranged horizontally opposite each other, and the pressing spring 832 is fixed on the punch 4 with its two ends connected to the two pressing slide rods 831, respectively.

[0046] One end of the pressing slide rod 831 passes through the punch 4 and is provided with a pushing inclined surface 833, which is inclined from top to bottom along the direction close to the isolation sliding hole 41. When the pressing slide rod 831 abuts against the workpiece, as the punch 4 continues to move downward, the pushing inclined surface 833 slides against the workpiece, pushing the pressing slide rod 831 to slide along the direction close to the isolation sliding hole 41. The peripheral wall of the isolation pin 81 is provided with a pressing inclined surface 811 that slides against the other end of the pressing slide rod 831. The pressing inclined surface 811 is inclined from top to bottom along the direction close to the pressing sliding hole 42. When the pressing slide rod 831 abuts against the isolation pin 81 along the direction close to the isolation sliding hole 41, the pressing inclined surface 811 pushes the isolation pin 81 to slide downward.

[0047] Because blowing air into the waste material before the isolation pin 81 pushes it away is less effective than inflating it after the isolation pin 81 has pushed it away, the distance between the lower end face of the downward sliding rod 831 and the lower end face of the punch 4 is smaller than the distance between the air supply pipe 22 and the upper end face of the lower template 2 in order to increase the probability of the waste material detaching from the punch 4. This satisfies the condition that the waste material is pushed away when the punch 4 moves upward.

[0048] Since different models of punches 4 need to correspond to different models of punches 21, in order to adjust the model of punch 21, refer to Figure 3 The lower end face of the lower template 2 has a cleaning hole 23 that is coaxially connected to the punch 21. A cleaning sleeve 9 is internally threaded into the cleaning hole 23 of the lower template 2. The upper end face of the cleaning sleeve 9 has a cleaning through hole 91 for the punch 4 to slide into. Different models of punches 4 can correspond to different models of cleaning sleeves 9.

[0049] The cleaning through hole 91 has an air supply channel 92 on its wall. One end of the air supply channel 92 is connected to the air supply branch pipe 22. The end of the air supply branch pipe 22 connected to the air supply channel 92 is provided with a connector 10, which is screwed into the air supply channel 92. The other end of the air supply channel 92 is inclined downward along the axis near the cleaning through hole 91, so that the air curtain in the cleaning through hole 91 is arranged downward along the axis near the cleaning through hole 91. This can guide the waste material to move downward faster while blowing the waste material away from the punch 4, shortening the time the waste material spends in the cleaning sleeve 9, so that when the punch 4 continuously punches the workpiece, it leaves room for other waste material to enter the punch hole 21.

[0050] For ease of installation of the cleaning sleeve 9, refer to... Figure 2 and Figure 4 The collection box 7 is detachably installed below the cleaning sleeve 9. The collection box 7 has a storage cavity 71 for storing waste material, which connects to the cleaning through hole 91. This allows for increased contact area when disassembling the cleaning sleeve 9 by gripping the collection box 7, reducing the difficulty of disassembling and assembling the cleaning sleeve 9. Simultaneously, the outer peripheral wall of the collection box 7 has several vent holes 72 communicating with the storage cavity 71, thereby guiding the airflow downwards within the cleaning through hole 91.

[0051] After punch 4 presses the workpiece, some debris will adhere to various parts of punch 4. In order to clean the perimeter of punch 4, refer to... Figure 2 A cleaning ring 11 is provided inside the cleaning through hole 91 of the cleaning sleeve 9. A placement groove for placing the cleaning ring 11 is coaxially opened on the hole wall of the cleaning through hole 91. The placement groove is located above the air supply channel 92. The cleaning ring 11 is made of elastic material and its inner peripheral wall slides against the outer peripheral wall of the punch 4. The inner peripheral wall of the cleaning ring 11 is provided with multiple elastic protrusions 12, which are arranged inclined downward along the axis close to the cleaning sleeve 9.

[0052] When the punch 4 slides into the punch hole 21, the upper end face of the elastic protrusion 12 abuts against the punch 4 and removes the waste debris on the punch 4. When the punch 4 rises, the lower end face of the elastic protrusion 12 contacts the punch 4 to reduce the probability of the cleaned waste debris re-adhering to the punch 4, thereby further improving the waste cleaning effect.

[0053] The implementation principle of the waste cleaning device for stamping parts in this application embodiment is as follows: When the stamping die is working, the workpiece is placed on the lower template 2, and the punch 4 falls to punch a hole 21 in the workpiece. Then, the punch 4, along with the waste, enters the hole 21. The air pump 5 is turned on, and air is blown into the cleaning through hole 91 through the air supply pipe 6, the air supply branch pipe 22, and the air supply channel 92 to form an air curtain. At this time, the punch 4 first passes through the cleaning ring 11, and the cleaning ring 11 cleans the waste debris on the outer peripheral wall of the punch 4. Then, the punch 4 passes through the air curtain. At this time, the downward sliding rod 831 abuts against the workpiece and pushes the isolation pin 81 to slide downward. The isolation pin 81 pushes the waste downward away from the punch 4. As the punch 4 moves upward and passes through the air curtain, the waste is blown away from the punch 4 and slides down into the collection box 7. The air supply pipe 6 does not shake with the rise and fall of the punch 4, which strengthens the connection stability between the air supply pipe 6 and the stamping die and improves the waste cleaning effect.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A waste cleaning device for stamping parts, comprising an upper template (1), a lower template (2), a lifting component (3), and a punch (4), wherein the lifting component (3) drives the upper template (1) to move vertically up and down to approach or move away from the lower template (2), the punch (4) is installed on the upper template (1), and the upper end face of the lower template (2) is provided with a punch hole (21) for the punch (4) to be coaxially inserted, characterized in that: It also includes an air pump (5) and an air supply pipe (6). The two ends of the air supply pipe (6) are connected to the air pump (5) and the lower template (2) respectively. The lower template (2) is provided with an air supply branch pipe (22) that connects the air supply pipe (6) and the hole wall of the punch (21). The gas enters the punch (21) to form an air curtain for the punch (4) to pass through. The lower end face of the lower template (2) is connected to a collection box (7) for collecting waste. The collection box (7) is connected to the punch (21). The punch (4) is provided with an isolation component (8) for isolating the punch (4) and the waste after the punch (4) is inserted into the punch (21). The isolation assembly (8) includes an isolation pin (81), a return spring (82), and a pressing member (83); The lower end face of the punch (4) is coaxially provided with an isolation sliding hole (41) for the isolation pin (81) to slide vertically. The return spring (82) is located in the isolation sliding hole (41) on the side of the isolation pin (81) away from the lower template (2). The return spring (82) connects the isolation pin (81) and the bottom of the isolation sliding hole (41). The lower pressing member (83) is connected to the isolation pin (81) and is used to push the isolation pin (81) downward to push away the waste material after the punch (4) is inserted into the punch hole (21). The pressing component (83) includes a pressing slide rod (831) and a pressing spring (832); The outer peripheral wall of the punch (4) is horizontally provided with a downward sliding hole (42) for the downward sliding rod (831) to slide. The downward sliding hole (42) is connected to the isolation sliding hole (41). The downward spring (832) is arranged along the sliding direction of the downward sliding rod (831). The two ends of the downward spring (832) are respectively connected to the downward sliding rod (831) and the punch (4). One end of the downward sliding rod (831) passes through the punch (4) and is provided with a push. The inclined plane (833) is used to push the sliding rod (831) to slide along the direction close to the isolation sliding hole (41) after it comes into contact with the workpiece. The peripheral wall of the isolation pin (81) is provided with a downward inclined plane (811) that slides and abuts against the other end of the downward sliding rod (831). When the isolation pin (81) slides into the isolation sliding hole (41), it is pushed downward by the downward inclined plane (811). The distance between the lower end face of the lower sliding rod (831) and the lower end face of the punch (4) is less than the distance between the upper end face of the gas delivery pipe (22) and the lower template (2).

2. The waste cleaning device for stamping parts according to claim 1, characterized in that: The pushing inclined surface (833) is arranged at an angle from top to bottom along the direction close to the isolation sliding hole (41), and the pressing inclined surface (811) is arranged at an angle from top to bottom along the direction close to the pressing sliding hole (42).

3. The waste cleaning device for stamping parts according to claim 1, characterized in that: The lower end face of the lower template (2) is provided with a cleaning hole (23) coaxially connected to the punch (21). The cleaning hole (23) of the lower template (2) is internally threaded with a cleaning sleeve (9). The upper end face of the cleaning sleeve (9) is coaxially provided with a cleaning through hole (91) for the punch (4) to slide into. The wall of the cleaning through hole (91) is provided with an air supply channel (92). One end of the air supply channel (92) is connected to the air supply pipe (22), and the other end of the air supply channel (92) is inclined downward along the axis direction close to the cleaning through hole (91).

4. The waste cleaning device for stamping parts according to claim 3, characterized in that: The gas supply pipe (22) is provided with a connector (10) on the side near the cleaning sleeve (9). The connector (10) is inserted into the gas supply channel (92) and threadedly connected to the cleaning sleeve (9).

5. The waste cleaning device for stamping parts according to claim 3, characterized in that: A cleaning ring (11) is provided in the cleaning through hole (91) of the cleaning sleeve (9). A placement groove for placing the cleaning ring (11) is coaxially opened on the hole wall of the cleaning through hole (91). The placement groove is located above the air supply channel (92). The cleaning ring (11) is made of elastic material and its inner peripheral wall slides against the outer peripheral wall of the punch (4).

6. The waste cleaning device for stamping parts according to claim 5, characterized in that: The inner peripheral wall of the cleaning ring (11) is provided with a plurality of elastic protrusions (12), which are arranged inclined downward along the axis of the cleaning sleeve (9).

7. The waste cleaning device for stamping parts according to claim 6, characterized in that: The collection box (7) is detachably installed below the cleaning sleeve (9). The collection box (7) has a storage cavity (71) for storing waste materials. The storage cavity (71) is connected to the cleaning through hole (91). The outer peripheral wall of the collection box (7) has several ventilation holes (72) that are connected to the storage cavity (71).

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