Cleaning device and cleaning method for punching parts with holes

Abstract

The invention relates to the technical field of stamping part cleaning devices, in particular to a cleaning device and a cleaning method for perforated stamping parts, which comprises an outer stainless steel mesh belt, a plurality of moving pipes are arranged at the center line of the outer stainless steel mesh belt in the width direction at equal intervals, and the moving pipes are synchronously conveyed along with the stainless steel mesh belt. The movable pipe is sleeved with a supporting disc, the upper end of the movable pipe is closed, water spraying holes are formed in the side face of the upper portion of the movable pipe in the circumferential direction, a first water inlet pipe is longitudinally arranged at the center of the outer stainless steel mesh belt, and the first water inlet pipe is rotationally connected with and communicates with a disc with a water cavity through a bearing. The other end of the spring pipe communicates with the lower end of the moving pipe. By means of the hole cleaning device, while the top face and the bottom face of a stamping part are cleaned, a hole is cleaned through the movable pipe, so that time and physical strength consumed by manual hole cleaning are saved, and the working efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of stamping parts cleaning devices, specifically a cleaning device and method for perforated stamping parts. Background Technology

[0002] Stamped parts are fundamental components widely used in modern industrial production. They are produced by applying external force to sheet metal, strip, tube, and profiles using a press and dies, causing plastic deformation or separation to obtain the desired shape and size. Among the many stamped parts, there are numerous structural components with through holes or blind holes, such as automotive brake pads, chain links, various connecting plates, and flanges. These holes are typically used for installation, positioning, weight reduction, or to achieve specific functions.

[0003] During the stamping process, the surface of the workpiece inevitably becomes contaminated with cutting fluid, oil, metal shavings, and environmental dust. To ensure product cleanliness and meet the requirements of subsequent assembly, electroplating, and painting processes, the stamped parts must be thoroughly cleaned.

[0004] Currently, spray cleaning is the most common method for cleaning these perforated stamped parts. However, this method has limitations: while both directional spraying and immersion cleaning are effective on the planar and outer surfaces of the stamped parts, they are severely inadequate for cleaning the walls of holes, slits, and complex intersecting channels deep within the parts. The cleaning fluid struggles to create effective turbulence and scouring within the holes, resulting in stubborn oil and debris adhering to the hole walls remaining unremoved.

[0005] Because automated cleaning equipment often fails to achieve satisfactory results, manual cleaning is frequently added to production lines after mechanical cleaning to ensure final cleaning quality. Operators must use brushes to meticulously and repeatedly clean every hole in each workpiece. This method not only significantly increases the workload for operators but also results in extremely low cleaning efficiency, becoming a bottleneck restricting the automation level and overall production efficiency of the production line. Summary of the Invention

[0006] This invention provides a cleaning device for perforated stamped parts to overcome the deficiencies in the prior art.

[0007] This invention is achieved through the following technical solution: A cleaning device for perforated stamped parts includes a frame and an outer conveying device and an inner conveying device mounted on the frame. The outer conveying device includes a drive motor, a drive wheel driven by the drive motor, and an outer stainless steel mesh belt that passes around the drive wheel. Two drive wheels are arranged in front and behind each other and distributed on both sides of the outer stainless steel mesh belt. Water spray pipes are arranged on the upper and lower sides of the outer stainless steel mesh belt to spray water in opposite directions. One end of each of the two water spray pipes is closed, and the other end is vertically connected to a longitudinal connecting pipe. The longitudinal connecting pipe extends longitudinally backward and is connected to a vertical connecting pipe. The vertical connecting pipe is vertically connected to a second water inlet pipe, and the outlet end of the second water inlet pipe is fixedly set.

[0008] Several equally spaced movable tubes are arranged at the center line of the outer stainless steel mesh belt and move synchronously with the stainless steel mesh belt. The movable tubes are fitted with support plates. The upper end of the movable tubes is closed and water spray holes are opened on the upper side along its circumference. A first water inlet pipe is arranged longitudinally at the center of the outer stainless steel mesh belt. The first water inlet pipe is rotatably connected to a disc with a water cavity through a bearing. One end of the spring tube is fixedly connected along the circumference of the disc and communicates with the water cavity. The other end of the spring tube is connected to the lower end of the movable tube.

[0009] In use, the stamped part is placed on a support plate, and the upper part of the moving tube is inserted into the corresponding hole. As the outer stainless steel mesh belt moves the moving tube, it simultaneously moves the stamped part, allowing it to pass through the water spray pipe for cleaning of its top and bottom surfaces. Since the moving tube is connected to a spring tube mounted on a disc that rotates along the first water inlet pipe, and the spring tube can be extended or shortened as needed, water is supplied to the moving tube during its movement. This water supply from the spring tube ensures water is sprayed from the spray holes in the moving tube, cleaning the holes and guaranteeing thorough cleaning of both holes and surfaces in one operation. This not only saves time associated with cleaning individual holes but also conserves worker energy and improves efficiency.

[0010] Preferably, the inner conveying device is located inside the outer conveying mesh belt. The inner conveying device includes a drive motor, a drive wheel rotated by the drive motor, and an inner stainless steel mesh belt that passes around the drive wheel. Two drive wheels are provided on each side, distributed on the front and rear sides of the inner stainless steel mesh belt in the width direction. The inner stainless steel mesh belt is driven by the corresponding drive wheel, and its transmission speed is the same as that of the outer stainless steel mesh belt. Several fixed tubes and an outer tube with equal spacing are perpendicularly connected along their circulation direction on the center line of the outer and inner stainless steel mesh belts in the width direction. The movable tube is located inside the outer tube, and a support plate is rotatably connected to the upper part of the movable tube via a bearing. The support plate is supported by a first spring fixedly mounted on the fixed tube, and the lower end of the movable tube is fixed. A ring magnet is fitted onto the outer tube; one end of a spring tube is connected to the lower end of the outer tube. The disc and spring tube are set inside the inner conveyor belt. The outer tube has an inner tube with a closed lower end. The inner tube and the outer tube slide and seal. An inner cavity is opened on the side of the outer tube. The lower part of the outer tube is blocked by a partition. The inner cavity and the partition are connected through a through hole. An outer hole is opened on the wall of the inner cavity. An inner hole that can be misaligned with the outer hole is opened on the side wall of the inner tube. A ring iron piece is fixedly fitted onto the upper part of the inner tube. The ring iron piece is fixedly connected to one end of a second spring. The second spring is fixedly set on the outer side surface of the outer tube. After the support plate places the stamped part, it is pressed down. The moving tube moves downward. The ring magnet attracts the ring iron piece and drives the inner tube to move upward, so that the ring magnet and the ring iron piece are connected and the outer hole and the inner hole are connected.

[0011] Preferably, after the stamped part is placed on the support plate, the support plate presses down under gravity, which in turn drives the moving tube to press down. This pressing causes the inner end of the moving tube to move downward. Since the inner and outer stainless steel mesh belts have the same conveying speed, and the spacing between the outer tubes is the same as the spacing between the fixed tubes, it can be ensured that the moving tube and the inner tube are vertically aligned during the lateral movement on the upper side. As the moving tube moves downward, the annular magnet also moves downward, so that the annular iron piece enters the attraction range of the annular magnet. The annular iron piece moves upward and docks with the annular magnet, thus realizing the docking of the moving tube and the inner tube. The upward movement of the inner tube makes the originally misaligned outer and inner holes open up, and water sequentially passes through the first water inlet pipe and the disc. The system consists of a spring tube, an outer tube, a through hole, an inner cavity, an outer hole, and an inner hole. Water enters the inner tube and then flows into the moving tube, exiting through a spray hole to clean the holes in the stamped parts. During the conveying process, after cleaning a certain distance, the inner stainless steel mesh belt flips downward while the outer stainless steel mesh belt continues to move laterally. As a result, the moving tube and the inner tube separate under this force. The inner tube returns to its original position under the action of the second spring, and the outer hole and the inner hole are misaligned to prevent water from continuing to flow out through the inner tube. The moving tube also returns to its original position under the action of the first spring, thus stopping the water flow in the moving tube. This allows the cleaning to be stopped before the stamped parts fall off the outer stainless steel mesh belt, thereby saving water resources to a certain extent and achieving automated cleaning and water shut-off.

[0012] Preferably, the fixed tube and the outer tube are arranged in two parallel rows. The lower end of the outer tube is vertically connected to a longitudinal tube that is closed at both ends. The longitudinal tube is connected to the spring tube, thereby enabling the cleaning of two-hole stamped parts, such as brake pads.

[0013] Preferably, a gear is fixedly sleeved on the inner end of the moving tube, and a rack that meshes with the gear is fixedly installed between the outer and inner stainless steel mesh belts. After the support plate is pressed down, the rack is positioned on the gear trajectory line. A brush is fixedly sleeved on the upper part of the moving tube, and the brush has through holes communicating with the corresponding water spray holes. When the moving tube moves downward, the rack is positioned on the gear trajectory line, and the gear rotates as it follows the moving tube, thereby driving the moving tube to rotate. This not only ensures thorough cleaning but also achieves further cleaning by rotating the brush.

[0014] Preferably, the lower end of the moving tube is tapered, and the upper end of the inner tube is a tapered groove structure that matches the inner end of the moving rod. The inner end of the moving rod is fixedly fitted with a sealing ring, which can ensure a better sealing effect when the moving tube and the inner tube are connected.

[0015] Preferably, four drive wheels are wound around the front side of the outer stainless steel mesh belt, and the drive wheels are distributed at the four corners of the rectangle.

[0016] Preferably, both the fixed tube and the outer tube are fixedly connected to a limiting tube, and a limiting rod is slidably fitted inside the limiting tube. The inner end of the limiting rod is fixedly connected to the inner wall of the limiting tube by a corresponding first spring and a second spring. The limiting rod is fixedly connected to the corresponding support plate and the ring-shaped iron sheet, thereby ensuring that the first spring and the second spring achieve a linear stretching and contraction effect, and ensuring a better stretching effect.

[0017] A cleaning method for a perforated stamping part cleaning device includes the following steps: (1) Water circuit connection cleaning: Place the stamped part on the support plate and insert the moving tube into the hole of the stamped part. The support plate moves downward under pressure, thereby driving the moving tube to move downward. The downward movement of the moving tube drives the ring magnet to move downward, so that the ring magnet approaches the corresponding ring iron piece below. The ring iron piece moves upward under the magnetic force of the ring magnet, thereby driving the inner tube to move upward. The upward movement of the inner tube makes the outer hole and the inner hole connected. Then, water passes through the first water inlet pipe, disc, spring tube, outer tube, through hole, inner cavity, outer hole, inner hole in sequence, enters the inner tube and enters the moving tube from the inner tube, and is sprayed out from the spray hole to clean the hole of the stamped part. (2) Waterway disconnected; after the outer stainless steel mesh belt and the inner stainless steel mesh belt move a distance at the same time, the inner stainless steel mesh belt flips over while the outer stainless steel mesh belt continues to move laterally, so that the moving pipe and the inner pipe move in different directions, and then the annular magnet separates from the annular iron piece. The inner pipe resets under the action of the second spring, so that the inner hole and the outer hole are misaligned, and the inner pipe achieves the sealing of the outer hole, and the waterway is disconnected.

[0018] The use of this application enables the cleaning of holes by using a moving tube while cleaning the top and bottom surfaces of stamped parts, thereby saving the time and effort consumed by manual hole cleaning and improving work efficiency.

[0019] At the same time, after a certain cleaning time, when the stamped parts detach from the outer stainless steel mesh belt, the inner tube can be separated from the moving tube, and the water supply to the inner tube can be stopped, thus preventing water from flowing out. This greatly saves water resources and reduces water waste. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Partial schematic diagram; Figure 3 This is a diagram showing the brake disc placed on the outer stainless steel mesh belt; Figure 4 yes Figure 2 A magnified view of part of I; Figure 5 This is a schematic diagram of the inner and outer tubes fitting together.

[0022] As shown in the figure: 1. Outer stainless steel mesh belt; 2. Inner stainless steel mesh belt; 3. Moving pipe; 4. Water spray pipe; 5. Support plate; 6. Water spray hole; 7. Disc; 8. Spring tube; 9. Outer tube; 10. Fixed tube; 11. Ring magnet; 12. Inner cavity; 13. Outer hole; 14. Inner hole; 15. Gear; 16. Rack; 17. Conical structure; 18. Limiting rod; 19. Limiting tube; 20. Stamped part; 21. Brush; 22. Inner tube. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] A cleaning device for perforated stamped parts, such as Figures 1-5 As shown, the device includes a frame and an external conveying device mounted on the frame. The external conveying device includes a drive motor, drive wheels driven by the drive motor, and an outer stainless steel mesh belt 1 that passes around the drive wheels. Two drive wheels are arranged on each side, one in front and one behind, distributed on both sides of the outer stainless steel mesh belt 1. Water spray pipes 4 are arranged on the upper and lower sides of the outer stainless steel mesh belt 1, spraying water in opposite directions. Several moving pipes 3 with the same spacing are arranged at the center line of the width direction of the outer stainless steel mesh belt 1 and move synchronously with the stainless steel mesh belt. The moving pipes 3 are fitted with a support plate 5. The upper end of the moving pipes 3 is closed, and water spray holes 6 are opened on the upper side along its circumference. A first water inlet pipe is arranged longitudinally at the center of the outer stainless steel mesh belt 1. The first water inlet pipe is rotatably connected to a disc 7 with a water cavity through a bearing. Specifically, the disc 7 has a through hole communicating with the water cavity. A sealed bearing is arranged in the through hole. The outer ring of the sealed bearing is fitted and fixedly connected to the inner wall of the through hole, and the inner ring of the sealed bearing is fitted and fixedly connected to the outer wall of the first water inlet pipe. One end of the spring tube 8 is fixedly connected to the circumference of the disc 7 and communicates with the water cavity, while the other end of the spring tube 8 is connected to the lower end of the moving tube 3.

[0025] In use, the stamped part 20 is placed on the support plate 5, and the upper part of the moving tube 3 is inserted into the corresponding hole. When the outer stainless steel mesh belt 1 drives the moving tube 3 to move, the stamped part 20 is moved synchronously. The stamped part 20 can then pass through the water spray pipe 4 to clean the top and bottom surfaces of the stamped part 20. At the same time, since the moving tube 3 is connected to the spring tube 8, which is set on the disc 7, the disc 7 can rotate along the first water inlet pipe. The spring tube 8 can be lengthened and shortened as needed. Therefore, it can be ensured that the moving tube 3 is supplied with water during its movement. The water supply from the spring tube 8 to the moving tube 3 ensures that water is sprayed out from the water spray hole 6 in the moving tube 3, thereby cleaning the hole. This ensures that the hole and surface are cleaned in one go, saving the time consumed by cleaning the hole separately, saving the physical strength of the workers, and improving efficiency.

[0026] It also includes an inner conveying device mounted on the frame and located within the outer conveyor belt. The inner conveying device includes a drive motor, a drive wheel rotated by the drive motor, and an inner stainless steel mesh belt 2 that passes around the drive wheel. Two drive wheels are provided on each side, distributed on the front and rear sides of the inner stainless steel mesh belt 2 in the width direction. The inner stainless steel mesh belt 2 is driven by the corresponding drive wheel, and its transmission speed is the same as that of the outer stainless steel mesh belt 1. Several fixed pipes 10 and an outer pipe 9 with equal spacing are perpendicularly connected along their circulation direction on the center line of the outer stainless steel mesh belt 1 and the inner stainless steel mesh belt 2, respectively. A movable pipe 3 is disposed in the outer pipe 9. A support plate 5 is rotatably connected to the upper part of the movable pipe 3 via a bearing. Specifically, the support plate 5 has a through hole, and a bearing outer ring is coaxially fixedly connected within the through hole. The movable pipe passes through the bearing inner ring and is coaxially and fixedly connected to the bearing inner ring. The support plate 5 is connected via a first fixed pipe 10... A spring supports the lower end of the moving tube 3, which is fixedly fitted with an annular magnet 11. The lower end of the outer tube 9 is connected to one end of the spring tube 8. The disc 7 and the spring tube 8 are set in the inner conveyor belt. The outer tube 9 is provided with an inner tube 22 that is closed at the lower end. The inner tube 22 and the outer tube 9 are slidably sealed. An inner cavity 12 is opened on the side of the outer tube 9. The lower part of the outer tube 9 is blocked by a partition. The inner cavity 12 and the partition are connected through a through hole. An outer hole 13 is opened on the wall of the inner cavity 12. An inner hole 14 that can be misaligned with the outer hole 13 is opened on the side wall of the inner tube 22. An annular iron piece is fixedly fitted on the upper part of the inner tube 22. The annular iron piece is fixedly connected to one end of the second spring. The second spring is fixedly set on the outer side surface of the outer tube 9. After the support plate 5 places the stamping part 20, it presses down. The moving tube 3 moves downward. The annular magnet 11 attracts the annular iron piece and drives the inner tube 22 to move upward, so that the annular magnet 11 and the annular iron piece are connected and the outer hole 13 and the inner hole 14 are connected.

[0027] After the stamped part 20 is placed on the support plate 5, the support plate 5 presses down under the action of gravity, which in turn drives the moving tube 3 to press down. This pressing causes the inner end of the moving tube 3 to move downward. Since the inner stainless steel mesh belt 2 and the outer stainless steel mesh belt 1 have the same conveying speed, and the distance between the outer tubes 9 is the same as the distance between the fixed tubes 10, it can be ensured that the moving tube 3 and the inner tube 22 are vertically aligned during the horizontal movement on the upper side. As the moving tube 3 moves downward, the annular magnet 11 also moves downward, so that the annular iron piece enters the adsorption range of the annular magnet 11. The annular iron piece moves upward and docks with the annular magnet 11, thus realizing the docking of the moving tube 3 and the inner tube 22. The upward movement of the inner tube 22 makes the originally misaligned outer hole 13 and inner hole 14 pass through, and then the water passes through the first water inlet pipe, the disc 7, and the spring in sequence. The spring tube 8, outer tube 9, through hole, inner cavity 12, outer hole 13, and inner hole 14 enter the inner tube 22 and then enter the moving tube 3 from the inner tube 22, and spray out from the spray hole 6 to clean the holes of the stamping part 20. During the conveying process, after cleaning a certain distance, the inner stainless steel mesh belt 2 begins to rotate and move while the outer stainless steel mesh belt 1 continues to move laterally. As a result, the moving tube 3 and the inner tube 22 begin to separate at this point. The inner tube 22 returns to its original position under the action of the second spring, and the outer hole 13 and the inner hole 14 are misaligned to prevent water from continuing to flow out through the inner tube 22. The moving tube 3 also returns to its original position under the action of the first spring, thus stopping the water flow in the moving tube 3. This allows the cleaning to be stopped before the stamping part 20 falls off the outer stainless steel mesh belt 1, thereby saving water resources to a certain extent and realizing automated cleaning and water shut-off.

[0028] The fixed tube 10 and the outer tube 9 are arranged in two parallel rows. The lower end of the outer tube 9 is vertically connected to a longitudinal tube that is closed at both ends. The longitudinal tube is connected to the spring tube 8, thereby enabling the cleaning of the two-hole stamped parts 20, such as brake pads.

[0029] A gear 15 is fixedly sleeved on the inner end of the moving tube 3. A rack 16 that can mesh with the gear 15 is fixedly installed between the outer stainless steel mesh belt 1 and the inner stainless steel mesh belt 2. After the support plate 5 is pressed down, the rack 16 is located on the trajectory line of the gear 15. A brush 21 is fixedly sleeved on the upper part of the moving tube 3. The brush 21 has a through hole that communicates with the corresponding water spray hole 6. When the moving tube 3 moves downward, the rack 16 will be located on the trajectory line of the gear 15. As the gear 15 moves with the moving tube 3, it will rotate, thereby driving the moving tube 3 to rotate. This not only ensures thorough cleaning, but also achieves further cleaning when the brush 21 is rotated.

[0030] The lower end of the moving tube 3 is a tapered structure 17, and the upper end of the inner tube 22 is a tapered groove structure that matches the inner end of the moving rod. The inner end of the moving rod is fixedly fitted with a sealing ring, which can ensure a better sealing effect when the moving tube 3 and the inner tube 22 are connected.

[0031] Both of the water spray pipes 4 have one closed end and the other end is vertically connected to a longitudinal connecting pipe. The longitudinal connecting pipe extends longitudinally backward and is connected through the vertical connecting pipe. The vertical connecting pipe is vertically connected to a second water inlet pipe, and the outlet end of the second water inlet pipe is fixedly installed.

[0032] Four drive wheels are wound around the front side of the outer stainless steel mesh belt 1, and the drive wheels are distributed at the four corners of the rectangle.

[0033] Both the fixed tube 10 and the outer tube 9 are fixedly connected to the outer side of the limiting tube 19. The limiting tube 19 is slidably fitted with the limiting rod 18. The inner end of the limiting rod 18 is fixedly connected to the inner wall of the limiting tube 19 by the corresponding first spring and second spring. The limiting rod 18 is fixedly connected to the corresponding support plate 5 and the ring-shaped iron sheet, thereby ensuring that the first spring and the second spring achieve a linear stretching and contraction effect, and ensuring a better stretching effect.

[0034] The outer stainless steel mesh belt is equipped with perforated pads to facilitate support for the stamped parts, while water can pass through the perforations for cleaning.

[0035] A cleaning method for a perforated stamping part cleaning device includes the following steps: (1) Water circuit connection cleaning: Place the stamped part 20 on the support plate 5 and insert the moving tube 3 into the hole of the stamped part 20. The support plate 5 is pressed and moves downward, thereby driving the moving tube 3 to move downward. The downward movement of the moving tube 3 drives the ring magnet 11 to move downward, so that the ring magnet 11 approaches the corresponding ring iron piece below. The ring iron piece moves upward under the magnetic force of the ring magnet 11, thereby driving the inner tube 22 to move upward. The upward movement of the inner tube 22 makes the outer hole 13 and the inner hole 14 connected. Then, water passes through the first water inlet pipe, the disc 7, the spring tube 8, the outer tube 9, the outlet hole, the inner cavity 12, the outer hole 13, and the inner hole 14 in sequence, enters the inner tube 22 and enters the moving tube 3 from the inner tube 22, and is sprayed out from the spray hole 6 to clean the hole of the stamped part 20. (2) Waterway disconnected; after the outer stainless steel mesh belt 1 and the inner stainless steel mesh belt 2 move a distance at the same time, the inner stainless steel mesh belt 2 flips over while the outer stainless steel mesh belt 1 continues to move laterally, so that the moving pipe and the inner pipe move in different directions, and then the annular magnet separates from the annular iron piece. The inner pipe resets under the action of the second spring, so that the inner hole and the outer hole are misaligned, and the inner pipe achieves the sealing of the outer hole, and the waterway disconnected.

[0036] The use of this application enables the cleaning of the holes by the moving tube 3 while cleaning the top and bottom surfaces of the stamped part 20, thereby saving the time and effort consumed by manual cleaning of the holes and improving work efficiency.

[0037] At the same time, after a certain cleaning time, when the stamped part 20 detaches from the outer stainless steel mesh belt 1, the inner tube 22 can be separated from the moving tube 3, and the inner tube 22 can stop supplying water and stop discharging water, which greatly saves water resources and reduces water waste.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cleaning device for perforated stamped parts, characterized in that: The device includes a frame and an external conveying device mounted on the frame. The external conveying device includes a drive motor, drive wheels driven by the drive motor, and an outer stainless steel mesh belt that passes around the drive wheels. Two drive wheels are arranged on each side, one in front and one behind, distributed on both sides of the outer stainless steel mesh belt. Water spray pipes are arranged on the upper and lower sides of the outer stainless steel mesh belt, spraying water in opposite directions. Several moving pipes with the same spacing are arranged at the center line of the width direction of the outer stainless steel mesh belt and move synchronously with the stainless steel mesh belt. The moving pipes are fitted with support plates. The upper end of the moving pipes is closed, and water spray holes are opened on the upper side along its circumference. A first water inlet pipe is arranged longitudinally at the center of the outer stainless steel mesh belt. The first water inlet pipe is rotatably connected to a disc with a water cavity through a bearing. One end of a spring tube is fixedly connected along the circumference of the disc and communicates with the water cavity. The other end of the spring tube is connected to the lower end of the moving pipe.

2. The cleaning device for perforated stamped parts according to claim 1, characterized in that: It also includes an inner conveying device mounted on the frame and located within the outer conveyor belt. The inner conveying device includes a drive motor, drive wheels rotated by the drive motor, and an inner stainless steel mesh belt that passes over the drive wheels. Two drive wheels are provided on each side, distributed on the front and rear sides of the inner stainless steel mesh belt in the width direction. The inner stainless steel mesh belt is driven by the corresponding drive wheels, and its transmission speed is the same as that of the outer stainless steel mesh belt. Several fixed tubes and an outer tube with equal spacing are perpendicularly connected along their circulation direction on the center lines of the outer and inner stainless steel mesh belts in the width direction. A movable tube is disposed within the outer tube, and a support plate is rotatably connected to the upper part of the movable tube via bearings. The support plate is supported by a first spring fixedly mounted on the fixed tube. A ring magnet is fixedly sleeved at the lower end; one end of a spring tube is connected to the lower end of the outer tube. The disc and spring tube are set inside the inner conveyor belt. The outer tube has an inner tube with a closed lower end. The inner tube and the outer tube slide and seal. An inner cavity is opened on the side of the outer tube. The lower part of the outer tube is blocked by a partition. The inner cavity and the partition are connected through a through hole. An outer hole is opened on the wall of the inner cavity. An inner hole that can be misaligned with the outer hole is opened on the side wall of the inner tube. A ring iron piece is fixedly sleeved on the upper part of the inner tube. The ring iron piece is fixedly connected to one end of a second spring. The second spring is fixedly set on the outer side surface of the outer tube. After the support plate places the stamped part, it presses down. The moving tube moves downward. The ring magnet attracts the ring iron piece and drives the inner tube to move upward, so that the ring magnet and the ring iron piece are connected and the outer hole and the inner hole are connected.

3. The cleaning device for perforated stamped parts according to claim 2, characterized in that: The fixed tube and the outer tube are arranged in two parallel rows. The lower end of the outer tube is vertically connected to a longitudinal tube that is closed at both ends, and the longitudinal tube is connected to the spring tube.

4. The cleaning device for perforated stamped parts according to claim 2, characterized in that: A gear is fixedly sleeved on the inner end of the moving tube. A rack that can mesh with the gear is fixedly installed between the outer stainless steel mesh belt and the inner stainless steel mesh belt. After the support plate is pressed down, the rack is located on the gear trajectory line. A brush is fixedly sleeved on the upper part of the moving tube. A through hole communicating with the corresponding water spray hole is opened on the brush.

5. The cleaning device for perforated stamped parts according to claim 2, characterized in that: The lower end of the moving tube is a tapered structure, and the upper end of the inner tube is a tapered groove structure that matches the inner end of the moving rod, with a sealing ring fixedly sleeved on the inner end of the moving rod.

6. The cleaning device for perforated stamped parts according to claim 2, characterized in that: Both of the aforementioned water spray pipes have one closed end and the other end is vertically connected to a longitudinal connecting pipe. The longitudinal connecting pipe extends longitudinally backward and is connected through a vertical connecting pipe. The vertical connecting pipe is vertically connected to a second water inlet pipe, and the outlet end of the second water inlet pipe is fixedly installed.

7. The cleaning device for perforated stamped parts according to claim 6, characterized in that: Four drive wheels are wound around the front side of the outer stainless steel mesh belt, and the drive wheels are distributed at the four corners of the rectangle.

8. The cleaning device for perforated stamped parts according to claim 2, characterized in that: Both the fixed tube and the outer tube are fixedly connected to limit tubes. Limit rods slide inside the limit tubes. The inner end of the limit rods is fixedly connected to the inner wall of the limit tubes by corresponding first springs and second springs. The limit rods are fixedly connected to the corresponding support plates and annular iron plates respectively.

9. The cleaning method of the perforated stamping part cleaning apparatus according to any one of claims 1-8, characterized in that: Includes the following steps: (1) Water circuit connection cleaning: Place the stamped part on the support plate and insert the moving tube into the hole of the stamped part. The support plate moves downward under pressure, thereby driving the moving tube to move downward. The downward movement of the moving tube drives the ring magnet to move downward, so that the ring magnet approaches the corresponding ring iron piece below. The ring iron piece moves upward under the magnetic force of the ring magnet, thereby driving the inner tube to move upward. The upward movement of the inner tube makes the outer hole and the inner hole connected. Then, water passes through the first water inlet pipe, disc, spring tube, outer tube, through hole, inner cavity, outer hole, inner hole in sequence, enters the inner tube and enters the moving tube from the inner tube, and is sprayed out from the spray hole to clean the hole of the stamped part. (2) Waterway disconnected; after the outer stainless steel mesh belt and the inner stainless steel mesh belt move a distance at the same time, the inner stainless steel mesh belt flips over while the outer stainless steel mesh belt continues to move laterally, so that the moving pipe and the inner pipe move in different directions, and then the annular magnet separates from the annular iron piece. The inner pipe resets under the action of the second spring, so that the inner hole and the outer hole are misaligned, and the inner pipe achieves the sealing of the outer hole, and the waterway is disconnected.

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