Air compressor valve plate stamping die

Abstract

The invention relates to the technical field of plate stamping, and discloses an air compressor valve plate stamping die which is characterized in that a stamping mechanism is arranged above a stamping table body, and a lower die mechanism is arranged on the upper table surface of the stamping table body; one side of the lower die mechanism is provided with a cleaning mechanism which is used for treating table top chippings and waste generated by punching and can stretch out and draw back, the other side of the lower die mechanism is provided with a waste collecting mechanism for storing the waste, and the outer side of the punching table body is provided with an air supply assembly for supplying air to the cleaning mechanism. A limiting mechanism for fixing stamped finished products when the table top is cleaned is arranged in the stamping table body, the cleaning mechanism can be used for cleaning notching chippings and waste materials, the waste material collecting mechanism can be used for effectively collecting blown waste materials, the limiting mechanism can separate the waste materials from sheets in the process, and therefore the waste materials are effectively collected. And the sheets are fixed and prevented from being blown away together.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate stamping, in particular to a valve plate stamping die for an air compressor. BACKGROUND

[0002] A stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, which is called a cold stamping die (commonly known as a cold stamping die). Stamping is a pressure processing method that uses a die installed on a press to apply pressure to materials at room temperature to cause separation or plastic deformation, thereby obtaining the required parts. Valve plate stamping for an air compressor belongs to a kind of plate stamping. The plate is cut and punched by a punch after being divided and leveled. Waste and punching debris will be generated during this process. If not cleaned in time, it may cause deformation of the plate and affect the quality of the finished product when stamping other plates.

[0003] According to the search, the Chinese patent with the publication number CN218134568U discloses a stamping die for metal plate processing. After stamping is completed, the first cleaning brush will run to sweep away the larger debris from the workpiece table. This process will be repeated twice to ensure that the larger debris is cleaned. Then, the high-pressure spray gun operates to blow the smaller debris away from the workpiece table, and multiple high-pressure spray guns can achieve no dead angle cleaning. However, there are still the following problems:

[0004] 1. The high-pressure spray gun can effectively clean the debris, but it is exposed to the outside and is easily damaged by flying debris and waste during the stamping process. If an accident occurs, it will cause unnecessary loss.

[0005] 2. The waste spread by the high-pressure spray gun is not effectively controlled, and the debris is easily spread into the air environment, which can harm the health of workers, and the punching work cannot be completed. SUMMARY

[0006] Technical problems solved

[0007] To solve the problems of the prior art, the present application provides a valve plate stamping die for an air compressor, which mainly solves the problems of easy damage of the high-pressure spray gun and easy flying of the debris.

[0008] Technical scheme

[0009] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0010] The utility model provides an air compressor valve piece stamping die, including punch platform body and feeding mechanism, the upper side of punch platform body is provided with punch mechanism, the upper surface of punch platform body is provided with lower mould mechanism, one side of lower mould mechanism is provided with the cleaning mechanism who can stretch out and shrink and handles the waste of the table surface scrap and the waste produced by punching, and the other side of lower mould mechanism is provided with the waste collection mechanism who accomodates the waste, and the outside of punch platform body is provided with the gas supply assembly who supplies the cleaning mechanism with gas, the inside of punch platform body is provided with the limiting mechanism who fixes the stamping finished product when cleaning the table surface.

[0011] As a further scheme of the utility model, the feeding mechanism is arranged on one side of the punch platform body, a feeding groove is formed on one side of the punch platform body, a slot with a semicircular longitudinal section is formed on one side of the feeding groove, the feeding mechanism is composed of a conveyor belt, the conveyor belt is installed on the feeding groove, and the end of the conveyor belt is inserted into the slot.

[0012] As a further scheme of the utility model, the punch mechanism comprises side columns and hydraulic cylinders, the side columns are symmetrically welded to the upper end of the punch platform body, mounting brackets are welded to the upper end of the side columns, the hydraulic cylinders are detachably installed on the upper end of the mounting brackets by bolts, the piston end of the hydraulic cylinders penetrates the mounting brackets and is installed with a punch plate by bolts, and the lower end of the punch plate is integrally formed with a punch head.

[0013] As a further scheme of the utility model, the lower mould mechanism comprises a punching groove arranged on one side of the conveyor belt, the punching groove corresponds to the position of the punch plate, and strip-shaped through holes and circular through holes corresponding to the positions of the holes on the air compressor valve piece are formed on the punching groove.

[0014] As a further scheme of the utility model, the cleaning mechanism comprises a mounting groove formed on one side of the punching groove, an air inlet box is slidably connected in the mounting groove, an air inlet pipe is connected to one side of the air inlet box, and five groups of high-pressure nozzles are detachably installed on the other side of the air inlet box.

[0015] As a further scheme of the utility model, spherical clamping grooves are formed on both sides of the mounting groove, ball head plungers are installed on both sides of the air inlet box, the air inlet box and the mounting groove are clamped and fixed through the spherical clamping grooves and the ball head plungers, a threaded connecting seat is welded to one side of the air inlet box, a threaded connecting head is threadedly connected to one side of the threaded connecting seat, the threaded connecting head is communicated with the high-pressure nozzles through a rubber hose, and an expansion joint is sleeved with the rubber hose communicating with the high-pressure nozzles.

[0016] As a further further scheme of the present application, the air supply assembly comprises an air inlet head, a gas flow channel is formed in the body of the punching table, the air inlet head and the gas flow channel are in communication, and the gas outlet end of the gas flow channel is communicated with the mounting groove, and the gas outlet end of the gas flow channel is communicated through a rubber hose and an air inlet pipe.

[0017] As a further further scheme of the present application, the waste collecting mechanism comprises a discharge groove formed on the other side of the punching groove, an inclined guide groove is communicated in the interior of the discharge groove, one side of the body of the punching table is provided with a collecting groove, the collecting groove is communicated below the end of the guide groove, a collecting box is inserted in the collecting groove, an observation window is formed on the surface of the collecting box, and a handle is welded on the surface of the collecting box.

[0018] As a further further scheme of the present application, the limiting mechanism comprises a containing groove formed in the interior of the body of the punching table, the containing groove is communicated with the strip-shaped through hole and the circular through hole, a top plate is slidingly inserted in the interior of the containing groove, a cylindrical top block and a strip-shaped top block are welded on the upper end of the top plate, and compression springs are welded on the lower end of the top plate at four corners, and the lower end of the compression spring and the bottom of the containing groove are welded and fixed.

[0019] As a further further scheme of the present application, three groups of support columns are arranged in the interior of the containing groove at equal intervals, the upper and lower ends of the support columns are welded and fixed with the upper and lower walls of the containing groove respectively, and three groups of through holes are formed on the top plate corresponding to the support columns.

[0020] Advantages

[0021] Compared with the prior art, the present application provides an air compressor valve plate punching die, which has the following advantages:

[0022] 1. The mounting groove is used to accommodate the cleaning mechanism, and the ball head plunger is clamped in the mounting groove during normal operation of the cleaning mechanism, so that the cleaning mechanism is not easily damaged by the debris generated by punching, thereby reducing the probability of unnecessary loss in the prior art.

[0023] 2. The punching process is completed by the punching groove, which is recessed in the body of the punching table, so that the debris generated during air blowing and cleaning of the punching mechanism and the cleaning mechanism is not easy to splash.

[0024] 3. The punch is specially designed for the punching of valve plates, and when the workbench is cleaned after punching, the cylindrical top block and the strip-shaped top block in the limiting mechanism are lifted up and separated from the finished product under the action of the compression spring, and the finished product is fixed, so that the finished product will not be cleaned together with the waste and debris when the workbench is cleaned by the cleaning mechanism.

[0025] 4、The lower mold mechanism of the present application plays a supporting role on the table through the supporting column in the containing groove, so that the table is not easy to deform during stamping, improving the overall quality of the sheet forming, and the through hole is provided in the top plate to let the supporting column pass through, without affecting the function of the limiting mechanism.

[0026] 5、The waste collecting mechanism of the present application collects waste, and the waste will be blown into the discharge chute by the cleaning mechanism, and a small amount of debris not entering the discharge chute will only accumulate at the edge of the punching groove, without affecting normal stamping, and the debris entering the discharge chute will flow into the collecting box placed in the collecting groove along the guide groove, and the collecting box is externally provided with an observation window, which can monitor the remaining space inside in real time, so as to timely pour out the debris in the collecting box. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a right front side three-dimensional structure schematic diagram of the air compressor valve piece stamping die put forward by the present application;

[0028] Figure 2 It is a left front side three-dimensional structure schematic diagram of the air compressor valve piece stamping die put forward by the present application;

[0029] Figure 3 It is a back side three-dimensional structure schematic diagram of the air compressor valve piece stamping die put forward by the present application;

[0030] Figure 4 It is a transverse section structure schematic diagram of the air compressor valve piece stamping die put forward by the present application;

[0031] Figure 5 It is a Figure 4 enlarged structure schematic diagram of A part of the air compressor valve piece stamping die put forward by the present application;

[0032] Figure 6 It is a longitudinal section structure schematic diagram of the air compressor valve piece stamping die put forward by the present application;

[0033] Figure 7 It is a Figure 6 enlarged structure schematic diagram of B part of the air compressor valve piece stamping die put forward by the present application.

[0034] In the figure: 1, punch table body; 2, punching mechanism; 3, lower die mechanism; 4, cleaning mechanism; 5, waste collecting mechanism; 6, limiting mechanism; 7, feeding mechanism; 40, gas supply assembly; 101, feeding groove; 102, insertion slot; 201, side stand; 202, hydraulic cylinder; 203, mounting bracket; 204, punching plate; 205, punch; 301, punching groove; 302, strip-shaped through hole; 303, circular through hole; 401, mounting groove; 402, gas inlet box; 403, gas inlet pipe; 404, high-pressure nozzle; 405, spherical clamping groove; 406, ball plunger; 407, threaded connection seat; 408, threaded connection head; 409, expansion joint; 410, gas inlet head; 411, gas flow channel; 501, discharge groove; 502, guide groove; 503, collecting groove; 504, collecting box; 505, observation window; 506, handle; 601, containing groove; 602, top plate; 603, cylindrical top block; 604, strip-shaped top block; 605, compression spring; 606, support column; 607, via hole; 701, conveying belt. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0036] The serial numbers of components in the present application, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. Unless otherwise specified, the "connection" and "coupling" in the present application include direct and indirect connection (coupling). In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] Referring to Figures 1-7 The air compressor valve plate stamping die comprises a stamping table body 1, a feeding mechanism 7, a stamping mechanism 2 arranged above the stamping table body 1, a lower die mechanism 3 arranged on the upper surface of the stamping table body 1, a cleaning mechanism 4 arranged on one side of the lower die mechanism 3 and capable of being telescoped, a waste collecting mechanism 5 arranged on the other side of the lower die mechanism 3 and capable of collecting waste, and a gas supply assembly 40 arranged on the outer side of the stamping table body 1 and capable of supplying gas to the cleaning mechanism 4, and a limiting mechanism 6 arranged in the stamping table body 1 and capable of fixing a stamping finished product when the stamping finished product is cleaned on the surface.

[0039] In particular, the feeding mechanism 7 is arranged on one side of the stamping table body 1, a feeding groove 101 is arranged on one side of the stamping table body 1, a half-circular slot 102 is arranged on one side of the feeding groove 101, the feeding mechanism 7 is composed of a conveying belt 701, the conveying belt 701 is arranged in the feeding groove 101, and the end of the conveying belt 701 is inserted into the slot 102. The cut material plate is conveyed to the lower side of the stamping mechanism 2 by the conveying belt 701, and the slot 102 can shorten the gap between the conveying belt 701 and the surface, so that the material plate can smoothly enter.

[0040] It should be noted that the stamping mechanism 2 comprises a side column 201 and a hydraulic cylinder 202, the side column 201 is symmetrically welded to the upper end of the stamping table body 1, an installation frame 203 is welded to the upper end of the side column 201, the hydraulic cylinder 202 is detachably installed on the upper end of the installation frame 203 through bolts, the piston end of the hydraulic cylinder 202 penetrates the installation frame 203 and is installed with a stamping plate 204 through bolts, and the lower end of the stamping plate 204 is integrally formed with a punch 205. Figure 3 The shape of the punch 205 is specially designed for stamping the valve plate of the air compressor, and the square plate material can be directly stamped into the required shape and punched.

[0041] In particular, the lower die mechanism 3 comprises a stamping groove 301 arranged on one side of the conveying belt 701, the stamping groove 301 corresponds to the position of the stamping plate 204, strip-shaped through holes 302 and circular through holes 303 corresponding to the hole positions of the air compressor valve plate are arranged on the stamping groove 301, two groups of the strip-shaped through holes 302 and the circular through holes 303 are symmetrically arranged, and the strip-shaped through holes 302 and the circular through holes 303 can enable the limiting mechanism 6 to play its role.

[0042] It should be noted that the cleaning mechanism 4 includes a mounting groove 401 opened on one side of the punching groove 301, the inside of the mounting groove 401 is slidably connected with an air inlet box 402, one side of the air inlet box 402 is communicated with an air inlet pipe 403, and the other side of the air inlet box 402 is detachably installed with five groups of high-pressure nozzles 404. By supplying air to the air inlet pipe 403, the high-pressure nozzles 404 can spray gas to clean the debris inside the punching groove 301.

[0043] In particular, the mounting groove 401 is provided with a spherical clamping groove 405 on both sides, and the air inlet box 402 is provided with a ball plunger 406 on both sides. The air inlet box 402 and the mounting groove 401 are clamped and fixed through the spherical clamping groove 405 and the ball plunger 406. The air inlet box 402 can be unlocked by pulling the high-pressure nozzle 404. One side of the air inlet box 402 is welded with a threaded connector 407, and one side of the threaded connector 407 is threadedly connected with a threaded connector 408. When the high-pressure nozzle 404 is blocked, the air inlet box 402 can be pulled out and rotated down for replacement. The threaded connector 408 is communicated with the high-pressure nozzle 404 through a rubber hose, and the rubber hose communicated with the high-pressure nozzle 404 is sleeved with an expansion joint 409. The expansion joint 409 is a prior art, which can adjust the direction of the high-pressure nozzle 404 at any angle, so that the cleaning mechanism 4 can better play a role.

[0044] It should be noted that the gas supply assembly 40 includes an air inlet head 410, and the punching table body 1 is provided with a gas flow channel 411. The air inlet head 410 and the gas flow channel 411 are communicated, and the gas outlet end of the gas flow channel 411 is communicated in the mounting groove 401. The gas outlet end of the gas flow channel 411 is communicated with the air inlet pipe 403 through a rubber hose. By connecting an external gas supply pipeline on the outside of the air inlet head 410, the high-pressure nozzle 404 sprays gas to clean the debris of the punching groove 301.

[0045] In particular, the waste collecting mechanism 5 includes a discharge chute 501 opened on the other side of the punching groove 301, and the inside of the discharge chute 501 is communicated with an inclined guide groove 502. One side of the punching table body 1 is provided with a collecting groove 503, which is communicated below the end of the guide groove 502. The collecting groove 503 is inserted with a collecting box 504, and the surface of the collecting box 504 is provided with an observation window 505. The surface of the collecting box 504 is welded with a handle 506. The blown debris will pass through the discharge chute 501 and the guide groove 502 and finally enter the collecting box 504 in the collecting groove 503 to be collected.

[0046] It needs to be explained that the limiting mechanism 6 includes a containing groove 601 opened in the inside of the stamping table body 1, the containing groove 601 is communicated with the strip-shaped through hole 302 and the circular through hole 303, the inside of the containing groove 601 is slidably inserted with a top plate 602, the upper end of the top plate 602 is welded with a cylindrical top block 603 and a strip-shaped top block 604, and the lower end of the top plate 602 is welded with a compression spring 605 at four corners, the lower end of the compression spring 605 and the bottom of the containing groove 601 are welded and fixed, after the plate is placed below the stamping mechanism 2, the self-gravity of the plate will press the cylindrical top block 603 and the strip-shaped top block 604 into the containing groove 601, after stamping is completed, the waste and the sheet are separated, the pressure above the cylindrical top block 603 and the strip-shaped top block 604 is reduced, and the compression spring 605 is stretched again to lift the waste and completely separate the sheet.

[0047] In particular, in the application, three groups of support columns 606 are arranged in the containing groove 601, the upper and lower ends of the support columns 606 are welded and fixed with the upper and lower walls of the containing groove 601, three groups of through holes 607 are opened in the top plate 602 corresponding to the support columns 606, the support columns 606 support the table top, so that the table top is not easy to deform during stamping, and the through holes 607 are opened in the top plate 602 to allow the support columns 606 to pass through, so that the support columns 606 do not affect the function of the limiting mechanism 6.

[0048] The application is divided into the following steps when in use:

[0049] S1: Before operation, the air supply device is connected to the air inlet head 410 end of the air supply assembly 40, and it is ensured that the high-pressure nozzle 404 is completely retracted in the mounting groove 401, and the collection box 504 is inserted in the collection groove 503, and then the cut plate is conveyed to the lower side of the stamping mechanism 2 through the conveyor belt 701 in the feeding mechanism 7;

[0050] S2: The hydraulic cylinder 202 is controlled to be pressed down to stamp the plate, and after stamping is completed, the hydraulic cylinder 202 is retracted, and the compression spring 605 lifts the punched waste and separates the sheet by relying on the elastic force of itself;

[0051] S3: After stamping is completed, the hydraulic cylinder 202 is retracted, the cylindrical top block 603 and the strip-shaped top block 604 in the limiting mechanism 6 are inserted into the holes of the sheet to fix the sheet, and subsequent cleaning work is started;

[0052] S4: The external air supply device in S1 supplies air to the cleaning mechanism 4, so that the waste and debris are blown into the discharge chute 501, and the waste and debris flow into the collection box 504 along the guide groove 502, and the observation window 505 of the collection box 504 is observed after multiple processes to timely pour out the waste;

[0053] S5: take off the punched sheet and put it into the collecting basket for packing, and observe whether the debris on the edge of the table is too much after multiple punching, if too much, the debris can be blown into the discharge chute 501 for collection by pulling out the cleaning mechanism 4 and adjusting the angle of the high-pressure nozzle 404 through the telescopic joint 409;

[0054] S6: observe the gas outlet condition of the high-pressure nozzle 404 after multiple operations, if the high-pressure nozzle 404 is blocked, the high-pressure nozzle 404 can be rotated and disassembled from the threaded connector 408 and replaced with a new nozzle.

[0055] The technical features of the above embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0056] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of the present application should be subject to the appended claims.

Claims

1. An air compressor valve plate stamping die comprising a stamping table body (1) and a feeding mechanism (7), characterized in that, The upper side of the stamping table body (1) is provided with a stamping mechanism (2), the upper table top of the stamping table body (1) is provided with a lower die mechanism (3), one side of the lower die mechanism (3) is provided with a cleaning mechanism (4) which can be telescopic and can treat the table top debris and waste produced by punching, the other side of the lower die mechanism (3) is provided with a waste collecting mechanism (5) for collecting waste, and the outer side of the stamping table body (1) is provided with a gas supply assembly (40) for supplying gas to the cleaning mechanism (4), and the inside of the stamping table body (1) is provided with a limiting mechanism (6) for fixing the stamping finished product when cleaning the table top.

2. The air compressor valve plate stamping die of claim 1, wherein, The feeding mechanism (7) is arranged on one side of the stamping table body (1), the stamping table body (1) is provided with a feeding groove (101) on one side, and the feeding groove (101) is provided with a slot (102) with a semicircular longitudinal section on one side, the feeding mechanism (7) is composed of a conveyor belt (701), and the conveyor belt (701) is installed on the feeding groove (101), and the end of the conveyor belt (701) is inserted into the slot (102).

3. The air compressor valve plate stamping die of claim 2, wherein, The stamping mechanism (2) comprises a side stand (201) and a hydraulic cylinder (202), the side stand (201) is symmetrically welded to the upper end of the stamping table body (1), and the upper end of the side stand (201) is welded with a mounting bracket (203), the hydraulic cylinder (202) is detachably mounted on the upper end of the mounting bracket (203) through bolts, and the piston end of the hydraulic cylinder (202) penetrates the mounting bracket (203) and is provided with a stamping plate (204) through bolts, and the lower end of the stamping plate (204) is integrally formed with a punch (205).

4. The air compressor valve plate stamping die of claim 3, wherein, The lower die mechanism (3) comprises a punching groove (301) arranged on one side of the conveyor belt (701), the punching groove (301) corresponds in position to the stamping plate (204), and the punching groove (301) is provided with a strip-shaped through hole (302) and a circular through hole (303) corresponding in position to the hole of the valve plate of the air compressor.

5. The air compressor valve plate stamping die of claim 4, wherein, The cleaning mechanism (4) comprises a mounting groove (401) arranged on one side of the punching groove (301), the inside of the mounting groove (401) is slidably connected with an air inlet box (402), one side of the air inlet box (402) is communicated with an air inlet pipe (403), and the other side of the air inlet box (402) is detachably provided with five high-pressure nozzles (404).

6. The air compressor valve plate stamping die of claim 5, wherein, The mounting groove (401) is provided with a spherical clamping groove (405) on both sides, and the air inlet box (402) is provided with a ball plunger (406) on both sides, the air inlet box (402) and the mounting groove (401) are fixedly connected through the spherical clamping groove (405) and the ball plunger (406), one side of the air inlet box (402) is welded with a threaded connecting seat (407), one side of the threaded connecting seat (407) is threadedly connected with a threaded connecting head (408), the threaded connecting head (408) is communicated with the high-pressure nozzle (404) through a rubber hose, and the outer side of the rubber hose connected with the high-pressure nozzle (404) is sleeved with an expansion joint (409).

7. The air compressor valve plate stamping die of claim 5, wherein, The air supply assembly (40) comprises an air inlet head (410), a gas flow channel (411) is arranged in the punch table body (1), the air inlet head (410) and the gas flow channel (411) are communicated, and the gas outlet end of the gas flow channel (411) is communicated with the mounting groove (401), and the gas outlet end of the gas flow channel (411) is communicated through a rubber hose and an air inlet pipe (403).

8. The air compressor valve plate stamping die of claim 5, wherein, The waste collecting mechanism (5) comprises a discharge groove (501) arranged on the other side of the punching groove (301), the inside of the discharge groove (501) is communicated with an inclined guide groove (502), one side of the punch table body (1) is provided with a collecting groove (503), the collecting groove (503) is communicated below the end of the guide groove (502), the collecting groove (503) is inserted with a collecting box (504), the surface of the collecting box (504) is provided with an observation window (505), and the surface of the collecting box (504) is welded with a handle (506).

9. The air compressor valve plate stamping die of claim 4, wherein, The limiting mechanism (6) comprises a containing groove (601) arranged in the punch table body (1), the containing groove (601) is communicated with the strip-shaped through hole (302) and the circular through hole (303), the inside of the containing groove (601) is slidably inserted with a top plate (602), the upper end of the top plate (602) is welded with a cylindrical top block (603) and a strip-shaped top block (604), the lower end of the top plate (602) is welded with a compression spring (605) at four corners, and the lower end of the compression spring (605) and the bottom of the containing groove (601) are welded and fixed.

10. The air compressor valve plate stamping die of claim 9, wherein, The inside of the containing groove (601) is provided with three groups of equidistantly distributed supporting columns (606), the upper and lower ends of the supporting columns (606) are welded and fixed with the upper and lower walls of the containing groove (601) respectively, and three groups of through holes (607) are arranged on the top plate (602) corresponding to the supporting columns (606).

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