A shot blasting machine for workpiece polishing

Abstract

This invention relates to the field of shot blasting machines and discloses a shot blasting machine for workpiece grinding, comprising: a shot blasting component, a conveying component, and a transmission component. The conveying component is fixedly connected to the front end face of the shot blasting component, and the transmission component is symmetrically rotatably installed on both sides of the front end edge of the shot blasting component. The shot blasting component includes a fixed outer shell, and a shot blasting processing chamber is provided inside the fixed outer shell. A transmission rod is rotatably installed at both ends inside the shot blasting processing chamber, and a rubber track is rotatably installed on the outer surface of the transmission rod. A lifting frame is rotatably installed at the middle of both sides of the fixed outer shell. This invention, through the coordinated operation of the shot blasting component, the conveying component, and the transmission component, enables the shot blasting machine to automatically feed new workpieces and automatically unload them after shot blasting, thereby effectively improving the processing efficiency of the shot blasting machine and meeting people's usage needs.

Description

Technical Field

[0001] This invention relates to the field of shot blasting machines, and more specifically to a shot blasting machine for workpiece grinding. Background Technology

[0002] Shot blasting machines, sandblasting and rust removal equipment, and sandblasting machines are all types of equipment used in shot blasting. A shot blasting machine is a mechanical device that uses a high-speed rotating impeller to accelerate shot to a very high speed to impact the plastic surface of a workpiece, thereby changing the appearance or shape of the workpiece's surface.

[0003] It is suitable for removing adhering scale from molding sand and oxide scale from casting surfaces in the foundry industry; removing oxide scale from forging die surfaces in forging presses; removing internal stress and burrs after quenching in the heat treatment industry; removing rust and paint film from hull skin in the shipbuilding industry; and removing oxide layers from the surfaces of non-metallic parts in the engine manufacturing industry.

[0004] However, existing shot blasting machines for workpiece grinding have certain inconveniences during use. For example, when loading workpieces into the shot blasting machine, the bucket is slowly rotated by a chain to transport the workpiece into the processing chamber. This process is relatively slow and cannot continuously transport workpieces into the processing chamber. Moreover, loading workpieces into the bucket and then transporting them into the processing chamber adds an extra loading step. Furthermore, the bucket cannot operate synchronously with the sealing door, so it cannot guarantee that workpieces will be added to the processing chamber in a timely manner. At the same time, it cannot synchronously discharge finished workpieces. Therefore, existing shot blasting machines do not have the function of synchronous loading and unloading of workpieces, which fails to improve the loading and unloading efficiency of the shot blasting machine and cannot meet people's needs. Summary of the Invention

[0005] The purpose of this invention is to provide a shot blasting machine for workpiece grinding, and to solve the following technical problem: how to enable the shot blasting machine to have the function of synchronous loading and unloading of workpieces, thereby improving the processing efficiency of the shot blasting machine.

[0006] The objective of this invention can be achieved through the following technical solution: a shot blasting machine for workpiece grinding, comprising: a shot blasting component, a conveying component, and a transmission component, wherein the conveying component is fixedly connected to the front end face of the shot blasting component, and the transmission component is symmetrically rotatably installed on both sides of the front end edge of the shot blasting component;

[0007] The shot blasting component includes a fixed outer shell, inside which a shot blasting chamber is provided. A transmission rod is rotatably mounted at both ends of the shot blasting chamber. A rubber track is rotatably mounted on the outer surface of the transmission rod. A lifting frame is rotatably mounted at the middle of both sides of the fixed outer shell. A sealing door is rotatably mounted at the middle of the lifting frame. Lifting rods are rotatably engaged at both ends of the side of the sealing door. A locking rod is rotatably engaged at the bottom end of the lifting rod. A plunger-type cylinder is rotatably connected to the bottom surface at the middle of both ends of the lifting frame.

[0008] A drive motor is fixedly installed on one side of the upper part of the fixed housing. A second transmission sprocket is fixedly installed on one end of the transmission rod. A limit pawl is rotatably engaged on the outer surface of one end of the transmission rod at the bottom front end of the fixed housing. A tension spring is fixedly connected to the upper surface of the limit pawl. A first transmission chain is meshed with the outer surface of the second transmission sprocket at one end of the transmission rod. A first transmission sprocket is meshed with the inner bottom surface of the first transmission chain. A first helical gear is welded to the center of the side of the first transmission sprocket.

[0009] As a preferred embodiment of the present invention: the conveying component includes a limiting frame, a second conveyor belt is rotatably mounted inside the limiting frame, a gear shaft is rotatably mounted inside one end of the second conveyor belt, a limiting frame is provided at the bottom of one end of the second conveyor belt, and a take-up shaft is rotatably engaged at the bottom of the limiting frame and at one end of the limiting frame.

[0010] The outer surfaces of both ends of the winding shaft are evenly wound with connecting ropes, and the top ends of the connecting ropes are fixedly connected with snap-fit ​​shafts. The outer surface of the limiting frame is slidably mounted with a guide plate. One end of the second conveyor belt and below the guide plate is rotatably mounted with a first conveyor belt. Both ends of the first conveyor belt are rotatably mounted with drive shafts, and one end of the drive shaft is provided with a second helical gear.

[0011] As a preferred embodiment of the present invention: the transmission component includes a limiting plate, a limiting slide is provided on the side of the limiting plate, a third transmission sprocket is rotatably engaged on one side of the limiting plate, a transmission ratchet is welded to the side of the third transmission sprocket, a fourth transmission sprocket is rotatably engaged on the other side of the limiting plate, a drive gear is welded to the center of the side of the fourth transmission sprocket, and a second transmission chain is meshed with the outer surface of the fourth transmission sprocket.

[0012] As a preferred embodiment of the present invention: the inner two sides of the shot blasting chamber are symmetrically provided with limiting grooves, the bottom two ends of the sealing door are slidably engaged with the inside of the limiting grooves, the bottom end of the plunger cylinder is rotatably engaged with the side of the fixed housing, and one end of the drive motor is rotatably connected to one end of the transmission rod through the second transmission sprocket and the first transmission chain.

[0013] As a preferred embodiment of the present invention: sleeves are provided on the outer surfaces of both ends of the lifting frame, one end of the sleeve is rotatably engaged with the side of the fixed housing, and the lifting rod is slidably engaged with the inside of the limiting slide through the locking rod at the bottom end.

[0014] As a preferred embodiment of the present invention: the connecting rope is rotatably engaged with both ends of the side of the sealing door via the snap-fit ​​shaft at the top end; a limiting roller is provided at one end of the side of the limiting frame; the connecting rope is slidably overlapped on the outer surface of the limiting roller; and torsion springs are provided on the outer surfaces of the two ends of the winding shaft.

[0015] As a preferred embodiment of the present invention: the inside of the guide plate is slidably inserted into the inside of the shot blasting chamber, the third transmission sprocket and the transmission ratchet are rotatably sleeved on the outer surface of one end of the transmission rod, and the drive gear is movably meshed with the outer surface of one end of the gear shaft.

[0016] As a preferred embodiment of the present invention: the limiting pawl is movably engaged with the outer surface of the transmission ratchet, the first helical gear is meshed with the second helical gear, and a shot blaster is provided at the top of the inner cavity of the shot blasting chamber.

[0017] The beneficial effects of this invention are:

[0018] (1) By connecting the lifting rod and the snap rod to the outer surface of the sealing door, the present invention can simultaneously control the sliding of the guide plate and drive the transmission component to deflect upward while the sealing door rises, so as to make the second conveyor belt and the rubber track rotated and connected, thereby enabling the second conveyor belt to continuously transport the workpiece to the upper surface of the rubber track for processing. Moreover, by setting the guide plate, the workpiece can be supported and guided, avoiding obstruction of the normal lifting and lowering of the sealing door.

[0019] (2) By cooperating with the shot blasting components, conveying components and transmission components, the present invention enables the shot blasting machine to automatically feed new workpieces and automatically unload them after shot blasting, thereby effectively improving the processing efficiency of the shot blasting machine and meeting people's needs. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of a shot blasting machine.

[0022] Figure 2 This is a schematic diagram of the shot blasting component structure;

[0023] Figure 3 for Figure 2 A magnified view of the structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the conveying component structure;

[0025] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle;

[0026] Figure 6 This is a schematic diagram of the transmission component.

[0027] Figure Descriptions: 1. Shot blasting component; 2. Conveying component; 3. Transmission component; 11. Drive motor; 12. Sealing door; 13. Lifting frame; 14. Lifting rod; 15. Clamping rod; 16. Shot blasting chamber; 17. Rubber track; 18. Piston cylinder; 19. First helical gear; 191. Fixed housing; 110. First transmission sprocket; 111. First transmission chain; 112. Second transmission sprocket; 113. Tension spring; 114. Limiting pawl. ; 115. Transmission rod; 21. Transmission shaft; 22. Second helical gear; 23. First conveyor belt; 24. Guide plate; 25. Connecting rope; 26. Snap-fit ​​shaft; 27. Second conveyor belt; 28. Limiting frame; 29. ​​Gear shaft; 210. Take-up shaft; 211. Limiting frame; 31. Second transmission chain; 32. Transmission ratchet; 33. Third transmission sprocket; 34. Limiting plate; 35. Limiting slide; 36. Fourth transmission sprocket; 37. Drive gear. Detailed Implementation

[0028] 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, and 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.

[0029] Please see Figures 1-6 As shown, the present invention is a shot blasting machine for workpiece grinding, comprising: a shot blasting component 1, a conveying component 2, and a transmission component 3. The conveying component 2 is fixedly connected to the front end face of the shot blasting component 1, and the transmission component 3 is symmetrically rotatably installed on both sides of the front end edge of the shot blasting component 1.

[0030] The shot blasting component 1 includes a fixed housing 191, inside which a shot blasting chamber 16 is provided. A transmission rod 115 is rotatably installed at both ends of the shot blasting chamber 16. A rubber track 17 is rotatably installed on the outer surface of the transmission rod 115. A lifting frame 13 is rotatably installed in the middle of both sides of the fixed housing 191. A sealing door 12 is rotatably installed in the middle of the lifting frame 13. Lifting rods 14 are rotatably engaged at both ends of the side of the sealing door 12. A locking rod 15 is rotatably engaged at the bottom end of the lifting rod 14. A plunger cylinder 18 is rotatably connected to the bottom surface of both ends of the lifting frame 13.

[0031] A drive motor 11 is fixedly installed on one side of the upper part of the fixed housing 191. A second transmission sprocket 112 is fixedly installed on one end of the transmission rod 115. A limit pawl 114 is rotatably engaged on the outer surface of one end of the transmission rod 115 at the bottom front end of the fixed housing 191. A tension spring 113 is fixedly connected to the upper surface of the limit pawl 114. A first transmission chain 111 is meshed with the outer surface of the second transmission sprocket 112 at one end of the transmission rod 115. A first transmission sprocket 110 is meshed with the inner bottom surface of the first transmission chain 111. A first helical gear 19 is welded to the center of the side of the first transmission sprocket 110.

[0032] The conveying component 2 includes a limiting frame 28, a second conveyor belt 27 is rotatably mounted inside the limiting frame 28, a gear shaft 29 is rotatably mounted inside one end of the second conveyor belt 27, a limiting frame 211 is provided at the bottom of one end of the second conveyor belt 27, and a take-up shaft 210 is rotatably engaged at the bottom of the limiting frame 211 and at one end of the limiting frame 211.

[0033] The outer surfaces of both ends of the winding shaft 210 are evenly wound with connecting ropes 25. The top end of the connecting ropes 25 is fixedly connected with a snap-fit ​​shaft 26. The outer surface of the limiting frame 211 is slidably mounted with a guide plate 24. One end of the second conveyor belt 27 and below the guide plate 24 is rotatably mounted with a first conveyor belt 23. Both ends of the first conveyor belt 23 are rotatably mounted with a drive shaft 21. One end of the drive shaft 21 is provided with a second helical gear 22.

[0034] The transmission component 3 includes a limiting plate 34. A limiting slide 35 is provided on the side of the limiting plate 34. A third transmission sprocket 33 is rotatably engaged on one side of the limiting plate 34. A transmission ratchet 32 ​​is welded to the side of the third transmission sprocket 33. A fourth transmission sprocket 36 is rotatably engaged on the other side of the limiting plate 34. A drive gear 37 is welded to the center of the side of the fourth transmission sprocket 36. A second transmission chain 31 is meshed with the outer surface of the fourth transmission sprocket 36.

[0035] The shot blasting chamber 16 has symmetrically provided limit grooves on both sides of its interior. The bottom ends of the sealing door 12 are slidably engaged with the inside of the limit grooves. The bottom end of the plunger cylinder 18 is rotatably engaged with the side of the fixed housing 191. One end of the drive motor 11 is rotatably connected to one end of the transmission rod 115 through the second transmission sprocket 112 and the first transmission chain 111.

[0036] Through the above technical solution, symmetrical limiting grooves can be opened on both sides of the inner edge of the shot blasting chamber 16, so that the bottom ends of the sealing door 12 can slide and engage with the inside of the limiting groove, thereby limiting the lifting and lowering of the bottom end of the sealing door 12. The bottom end of the plunger cylinder 18 is rotated and engaged with the side of the fixed housing 191, ensuring that the plunger cylinder 18 follows the normal deflection of the lifting frame 13. One end of the drive motor 11 is rotatably connected to one end of the transmission rod 115 through the second transmission sprocket 112 and the first transmission chain 111, thereby controlling the forward and reverse rotation of the rubber track 17.

[0037] By connecting the lifting rod 14 and the locking rod 15 to the outer surface of the sealing door 12, the sliding of the guide plate 24 can be controlled simultaneously as the sealing door 12 rises, and the transmission component 3 can be driven to deflect upwards, thus rotatably connecting the second conveyor belt 27 and the rubber track 17. This allows the second conveyor belt 27 to continuously transport the workpiece to the upper surface of the rubber track 17 for processing. Furthermore, the guide plate 24 serves to receive and guide the workpiece, preventing obstruction to the normal lifting and lowering of the sealing door 12.

[0038] The outer surfaces of both ends of the lifting frame 13 are provided with sleeves. One end of the sleeve is rotatably engaged with the side of the fixed housing 191. The lifting rod 14 is slidably engaged with the inside of the limiting slide 35 through the locking rod 15 at the bottom.

[0039] Through the above technical solution, sleeves can be set on the outer surfaces of both ends of the lifting frame 13 to ensure that the length is automatically adjusted when the lifting frame 13 drives the sealing door 12 to rise and fall, thus ensuring the stable rise and fall of the sealing door 12. One end of the sleeve is rotated and locked to the side of the fixed housing 191, thereby ensuring the stability of the sleeve rotation. The lifting rod 14 is slidably locked to the inside of the limiting slide 35 through the locking rod 15 at the bottom end. When the sealing door 12 rises and falls, the lifting rod 14 drives the limiting slide 35 to deflect upward through the locking rod 15 at the bottom end, which facilitates the meshing connection between the drive gear 37 and the gear shaft 29.

[0040] The connecting rope 25 is rotatably engaged with the two ends of the side of the sealing door 12 via the snap-fit ​​shaft 26 at the top. A limit roller is provided at one end of the side of the limit frame 211. The connecting rope 25 is slidably overlapped on the outer surface of the limit roller. Torsion springs are provided on the outer surfaces of the two ends of the winding shaft 210.

[0041] Through the above technical solution, the connecting rope 25 can be rotatably engaged with both ends of the side of the sealing door 12 through the snap-fit ​​shaft 26 at the top. When the sealing door 12 rises, the connecting rope 25 can pull the guide plate 24 to slide horizontally synchronously. A limiting roller is provided on one end of the side of the limiting frame 211, and the connecting rope 25 slides and overlaps the outer surface of the limiting roller, which can limit the connecting rope 25. At the same time, when one end of the connecting rope 25 rises, the other end drives the guide plate 24 to slide horizontally. Torsion springs are provided on the outer surfaces of the two ends of the winding shaft 210. After the winding shaft 210 unwinds the connecting rope 25, the elastic force generated by the torsion springs will drive the winding shaft 210 to reset and rewind the connecting rope 25.

[0042] The inside of the guide plate 24 is slidably inserted into the inside of the shot blasting chamber 16. The third transmission sprocket 33 and the transmission ratchet 32 ​​are rotatably sleeved on the outer surface of one end of the transmission rod 115. The drive gear 37 is movably meshed with the outer surface of one end of the gear shaft 29. The limiting pawl 114 is movably engaged with the outer surface of the transmission ratchet 32. The first helical gear 19 is meshed with the second helical gear 22. A shot blaster is provided at the top of the inside of the shot blasting chamber 16.

[0043] Through the above technical solution, the inside of the guide plate 24 can be slidably inserted into the inside of the shot blasting chamber 16, thereby guiding the workpiece conveyed by the second conveyor belt 27 and ensuring that the workpiece falls onto the upper surface of the rubber track 17. The third transmission sprocket 33 and the transmission ratchet 32 ​​are rotatably sleeved on the outer surface of one end of the transmission rod 115, thereby facilitating the synchronous rotation of the third transmission sprocket 33 by the transmission rod 115. The drive gear 37 is movably meshed with the outer surface of one end of the gear shaft 29, thereby synchronously driving the gear shaft 29 to rotate when the transmission rod 115 rotates. The limiting pawl 114 is movably engaged with the outer surface of the transmission ratchet 32, thereby ensuring that the third transmission sprocket 33 rotates unidirectionally on the outer surface of the transmission rod 115. The first helical gear 19 and the second helical gear 22 are meshed, ensuring that the first conveyor belt 23 and the rubber track 17 rotate synchronously. A shot blaster is installed at the top of the inside of the shot blasting chamber 16, which can spray metal shot to process the outer surface of the workpiece rolling on the upper surface of the transmission rod 17.

[0044] The working principle of this invention is as follows: When shot blasting the outer surface of a workpiece, the workpiece is first placed on the upper surface of the second conveyor belt 27. Then, the plunger cylinder 18 is activated to push the lifting frame 13 upward. At the same time, the lifting frame 13 drives the sealing door 12 to rise synchronously, and the bottom ends of the sealing door 12 slide inside the limiting groove. Simultaneously, the drive motor 11 is activated to drive the rubber track 17 to rotate forward through the first transmission chain 111 and the second transmission sprocket 112. The transmission rod 115 at one end of the rubber track 17 drives the first helical gear 19 to rotate synchronously through the first transmission chain 111 and the second transmission sprocket 112. Moreover, under the engagement of the limiting pawl 114 and the transmission ratchet 32, the transmission rod 115 synchronously drives the third transmission... The sprocket 33 rotates, and simultaneously the transmission ratchet 32 ​​drives the drive gear 37 to rotate synchronously via the second transmission chain 31 and the fourth transmission sprocket 36. As the sealing door 12 rises, it drives the limiting plate 34 to deflect upwards via the lifting rod 14 and the locking rod 15 until the drive gear 37 meshes with the gear shaft 29. At the same time, the sealing door 12 rises to its highest position, and the plunger cylinder 18 stops operating. Simultaneously, as the sealing door 12 rises, it drives the guide plate 24 to slide synchronously on the outer surface of the limiting frame 211 via the connecting rope 25. When the sealing door 12 reaches its highest point, the guide plate 24 also slides to one end of the limiting frame 211, and one end of the guide plate 24 inserts into the shot blasting chamber 16. During the sliding process, the guide plate 24... The reel 210 rotates to unwind the connecting rope 25. Simultaneously, the take-up reel 210 drives the torsion spring on its outer surface to rotate, generating elastic force. Therefore, when the drive gear 37 meshes with the gear shaft 29, the gear shaft 29 drives the second conveyor belt 27 to rotate synchronously, thus allowing the second conveyor belt 27 to transport the workpiece on its upper surface until it falls into the guide plate 24. The guide plate 24 then transports the workpiece to the upper surface of the rubber track 17. When the workpiece loading is complete, the control plunger cylinder 18 drives the lifting frame 13 to reset and deflect downwards. Simultaneously, the sealing door 12 descends with the lifting frame 13 to seal the shot blasting chamber 16. As the sealing door 12 descends, it drives the limit plate 34 to move downwards via the lifting rod 14 and the locking rod 15. The lower reset deflection simultaneously causes the drive gear 37 to separate from the gear shaft 29, stopping the second conveyor belt 27 from rotating and stopping the conveying of workpieces onto the upper surface of the rubber track 17. The connecting rope 25 descends synchronously with the sealing door 12, and the elastic force generated by the torsion spring drives the winding shaft 210 to reset and rotate, thereby winding up the connecting rope 25. The guide plate 24 also slides back to its reset position along with the connecting rope 25. Therefore, between the descent of the sealing door 12 to the top of the shot blasting chamber 16, the guide plate 24 disengages from the interior of the shot blasting chamber 16 until the sealing door 12 descends and resets, sealing the shot blasting chamber 16. Then, the shot blasting component 1 is activated to perform shot blasting on the outer surface of the workpiece rolling on the upper surface of the rubber track 17. Upon completion of the processing...The starter piston cylinder 18 raises the sealing door 12 to half its initial height via the lifting frame 13, preventing the drive gear 37 from meshing with the gear shaft 29. Then, the drive motor 11 drives the rubber track 17 to rotate in the opposite direction, thus conveying the processed workpiece to the upper surface of the first conveyor belt 23. Since the first helical gear 19 meshes with the second helical gear 22, the first conveyor belt 23 receives and transports the falling workpiece, thus completing the automatic unloading of the workpiece. During the reverse rotation of the rubber track 17, the transmission rod 115 drives the limiting pawl 114 on its outer surface to rotate on the upper surface of the transmission ratchet 32, thereby... By ensuring the third transmission sprocket 33 stops operating, after the workpiece is unloaded, the drive motor 11 can continue to drive the rubber track 17 to rotate forward. Simultaneously, the plunger cylinder 18, through the lifting frame 13, raises the sealing door 12 to its highest point, allowing the second conveyor belt 27 to continue transporting new workpieces to the upper surface of the rubber track 17 for processing. Therefore, through the coordinated operation of the shot blasting component 1, the conveying component 2, and the transmission component 3, the shot blasting machine can automatically load new workpieces and automatically unload them after shot blasting, effectively improving the processing efficiency of the shot blasting machine and meeting user needs.

[0045] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A shot blasting machine for workpiece grinding, comprising: The shot blasting component (1), the conveying component (2), and the transmission component (3) are provided. The conveying component (2) is fixedly connected to the front end face of the shot blasting component (1), and the transmission component (3) is symmetrically rotated and installed on both sides of the front end edge of the shot blasting component (1). The shot blasting component (1) is characterized in that it includes a fixed outer shell (191), a shot blasting chamber (16) is provided inside the fixed outer shell (191), a transmission rod (115) is rotatably installed at both ends of the shot blasting chamber (16), a rubber track (17) is rotatably installed on the outer surface of the transmission rod (115), a lifting frame (13) is rotatably installed at the middle of both sides of the fixed outer shell (191), a sealing door (12) is rotatably installed at the middle of the lifting frame (13), a lifting rod (14) is rotatably engaged at both ends of the side of the sealing door (12), a locking rod (15) is rotatably engaged at the bottom end of the lifting rod (14), and a plunger cylinder (18) is rotatably connected to the bottom surface of both ends of the lifting frame (13). A drive motor (11) is fixedly installed on one side of the upper part of the fixed housing (191). A second transmission sprocket (112) is fixedly installed at one end of the transmission rod (115). A limit pawl (114) is rotatably engaged on the outer surface of one end of the transmission rod (115) at the bottom front end of the fixed housing (191). A tension spring (113) is fixedly connected to the upper surface of the limit pawl (114). A first transmission chain (111) is meshed with the outer surface of the second transmission sprocket (112) at one end of the transmission rod (115). A first transmission sprocket (110) is meshed with the inner bottom surface of the first transmission chain (111). A first helical gear (19) is welded to the center of the side of the first transmission sprocket (110). The conveying component (2) includes a limiting frame (28), a second conveyor belt (27) is rotatably mounted inside the limiting frame (28), a gear shaft (29) is rotatably mounted inside one end of the second conveyor belt (27), a limiting frame (211) is provided at the bottom of one end of the second conveyor belt (27), and a take-up shaft (210) is rotatably engaged at the bottom of the limiting frame (211) and at one end of the limiting frame (211). The outer surfaces of both ends of the winding shaft (210) are evenly wound with connecting ropes (25), and the top end of the connecting ropes (25) is fixedly connected with a snap-fit ​​shaft (26). The outer surface of the limiting frame (211) is slidably mounted with a guide plate (24). One end of the second conveyor belt (27) and below the guide plate (24) is rotatably mounted with a first conveyor belt (23). Both ends of the first conveyor belt (23) are rotatably mounted with a drive shaft (21), and one end of the drive shaft (21) is provided with a second helical gear (22). The transmission component (3) includes a limiting plate (34), a limiting slide (35) is provided on the side of the limiting plate (34), a third transmission sprocket (33) is rotatably engaged on one side of the limiting plate (34), a transmission ratchet (32) is welded to the side of the third transmission sprocket (33), a fourth transmission sprocket (36) is rotatably engaged on the other side of the limiting plate (34), a drive gear (37) is welded to the center of the side of the fourth transmission sprocket (36), and a second transmission chain (31) is meshed with the outer surface of the fourth transmission sprocket (36).

2. The shot blasting machine for workpiece grinding according to claim 1, characterized in that, The shot blasting chamber (16) has symmetrically provided limiting grooves on both sides of its interior. The bottom ends of the sealing door (12) are slidably engaged with the inside of the limiting grooves. The bottom end of the plunger cylinder (18) is rotatably engaged with the side of the fixed housing (191). One end of the drive motor (11) is rotatably connected to one end of the transmission rod (115) through the second transmission sprocket (112) and the first transmission chain (111).

3. The shot blasting machine for workpiece grinding according to claim 2, characterized in that, The lifting frame (13) has sleeves on the outer surfaces of both ends. One end of the sleeve is rotatably engaged with the side of the fixed housing (191). The lifting rod (14) is slidably engaged with the inside of the limiting slide (35) through the locking rod (15) at the bottom end.

4. A shot blasting machine for workpiece grinding according to claim 3, characterized in that, The connecting rope (25) is rotatably engaged with the two ends of the side of the sealing door (12) via the snap-fit ​​shaft (26) at the top. A limiting roller is provided at one end of the side of the limiting frame (211). The connecting rope (25) slides on the outer surface of the limiting roller. Torsion springs are provided on the outer surfaces of the two ends of the winding shaft (210).

5. A shot blasting machine for workpiece grinding according to claim 4, characterized in that, The inside of the guide plate (24) is slidably inserted into the inside of the shot blasting chamber (16), the third transmission sprocket (33) and the transmission ratchet (32) are rotatably sleeved on the outer surface of one end of the transmission rod (115), and the drive gear (37) is movably meshed with the outer surface of one end of the gear shaft (29).

6. A shot blasting machine for workpiece grinding according to claim 5, characterized in that, The limiting pawl (114) is movably engaged with the outer surface of the transmission ratchet (32), the first helical gear (19) is meshed with the second helical gear (22), and a shot blaster is provided at the top of the inner cavity of the shot blasting chamber (16).

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