Tilting vertical and horizontal multifunctional centrifugal casting machine

Abstract

The invention relates to the technical field of centrifugal casting machines, and discloses a tiltable vertical and horizontal multifunctional centrifugal casting machine which comprises a centrifugal casting machine body, a flange plate is fixedly connected to the end of the centrifugal casting machine body, a mold is fixedly connected to the flange plate, and a base is arranged at the bottom of the centrifugal casting machine body. A set of symmetrically-arranged supporting frames are fixedly connected to the top of the base, the centrifugal casting machine body is rotationally connected with the upper ends of the supporting frames, a mounting plate is fixedly connected to one side of one supporting frame, a motor is fixedly connected to one side of the mounting plate, and the output end of the motor is fixedly connected with the side wall of the centrifugal casting machine body. And one side of the flange plate is rotationally connected with an auxiliary positioning assembly. According to the tiltable vertical-horizontal multifunctional centrifugal casting machine, when the centrifugal casting machine body needs to be switched from the horizontal type to the vertical type to work, only the motor needs to be started, the centrifugal casting machine body is driven by the motor to rotate in the vertical state, and auxiliary fixing is conducted through the auxiliary positioning assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifugal casting machines, and particularly to a tiltable vertical and horizontal multi-functional centrifugal casting machine. Background Art

[0002] A centrifugal casting machine is a special machine that accurately pours liquid metal into a rotating mold. With the powerful centrifugal force, the metal liquid is fully filled and solidified to form a high-quality casting. According to the different rotation axes of the mold, it is mainly divided into three categories: horizontal, vertical, and inclined. Among these models, the horizontal centrifugal casting machine is the most widely used.

[0003] For example, the patent with the patent authorization announcement number CN109590443B discloses a horizontal centrifugal casting machine, which includes a base and a feeding trough arranged on the base; it also includes a horizontally arranged mold cylinder, supporting wheels, a grinding unit, a motor, and a controller; the controller is used to control the operation of the centrifugal casting machine; the lower part of the mold cylinder is supported by two pairs of supporting wheels arranged in pairs and is driven to rotate reliably by the supporting wheels; the output shaft of the motor is connected to the supporting wheels, and the motor is used to drive the supporting wheels to rotate; the grinding unit is arranged on the mold cylinder, and the grinding unit is used to grind and polish the tubular castings formed in the mold cylinder; through the mutual cooperation between the grinding disc, the first cylinder, the second cylinder, and the annular water tank, the grinding disc realizes reciprocating grinding of the inner wall of the tubular casting, improves the flatness of the inner wall of the tubular casting, reduces the time required for the grinding process, improves the production efficiency, and at the same time reduces the stress of the tubular casting itself and increases the strength of the tubular casting.

[0004] The horizontal centrifugal casting machine in the above patent still has certain defects: Currently, centrifugal casting manufacturers, out of the consideration of cost reduction, generally adopt the strategy of only installing one of the horizontal or vertical centrifugal casting machines. However, these two casting machines each have limitations and can only produce specific types of products, and cannot be flexibly converted to meet diverse production needs. Once the manufacturer needs to produce different types of centrifugal castings, if the installed casting machine type does not match, they have to purchase the corresponding equipment separately. This single equipment configuration not only increases the operating burden of the manufacturer but also greatly limits the flexibility of its production capacity, making it difficult for the manufacturer to meet the increasingly diverse product demands in the market, thus restricting its market competitiveness to a certain extent. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a tiltable vertical and horizontal multi-functional centrifugal casting machine, which enables the main body of the centrifugal casting machine to be freely switched between horizontal and vertical positions, realizes multi-purpose use of one machine, and reduces the investment cost.

[0006] To achieve the above object, the present invention provides the following technical solution: A tilting vertical and horizontal multi-functional centrifugal casting machine, including a centrifugal casting machine main body, a flange is fixedly connected to the end of the centrifugal casting machine main body, and a mold is fixedly connected to the flange. A base is provided at the bottom of the centrifugal casting machine main body, and a group of symmetrically arranged support frames are fixedly connected to the top of the base. The centrifugal casting machine main body is rotatably connected to the upper ends of the support frames. One side of one of the support frames is fixedly connected with a mounting plate, and a motor is fixedly connected to one side of the mounting plate. The output end of the motor is fixedly connected to the side wall of the centrifugal casting machine main body. An auxiliary positioning component is rotatably connected to one side of the flange, a support component is rotatably connected to the upper end of the support frame, the end of the support component away from the support frame is slidably connected with a feeding component, and a limiting component is connected to one side of the support frame.

[0007] Further, the auxiliary positioning component includes a support cylinder and a support block. An annular groove is formed on the outer wall of the flange, and the support block is slidably connected to the inside of the annular groove. A group of symmetrically arranged hinge blocks are fixedly connected to one end of the base top close to the mold. A support cylinder is rotatably connected between the hinge blocks, and the output end of the support cylinder is hinged to the support block.

[0008] Further, the support component includes a rotating ring, a fixing block, an inserting block, a fixing bolt and a support plate. A rotating groove is formed at the top of the support frame, and the rotating ring is rotatably connected to the inside of the rotating groove. A fixing block is fixedly connected to one side of the rotating ring close to the mold. A slot is formed at one end of the fixing block away from the rotating ring, and the inserting block is slidably connected to the inside of the slot. A support plate is fixedly connected to one end of the inserting block away from the fixing block. A fixing bolt is slidably connected to the middle position of the inserting block, and the fixing bolt is threadedly connected to the fixing block.

[0009] Further, the feeding component includes a material guiding pipe, a slider and a guide rail. A material guiding pipe is provided at the middle position of one end of the mold away from the centrifugal casting machine main body. A guide rail is fixedly connected to one end of the support plate away from the fixing block, and the slider is slidably connected to the guide rail. One side of the slider is fixedly connected to the material guiding pipe.

[0010] Further, a group of symmetrically arranged positioning blocks are fixedly connected to one end of the material guiding pipe away from the mold. A material guiding hopper is arranged between the two positioning blocks. A connecting rod is rotatably connected to the middle position of the positioning block, and one end of the connecting rod close to the positioning block is fixedly connected to the material guiding hopper.

[0011] Further, a sliding frame is rotatably connected to one end of the connecting rod away from the positioning block. An adjusting gear fixedly connected to the connecting rod is arranged inside the sliding frame. A tooth block is fixedly connected to the bottom of the guide rail at the upper end of the support plate, and the tooth block is meshed with the adjusting gear.

[0012] Furthermore, the limiting component includes a positioning rod, a reset elastic member, a traction rope, a winding roller, a transmission gear, and a driving gear. A hole groove is formed at the lower end of the support plate. The traction rope passes through the interior of the hole groove. One end of the traction rope is fixedly connected to the slider, and the other end of the traction rope is fixedly connected to the winding roller. A transmission gear is fixedly connected to one side of the winding roller close to the support frame. The winding roller and the transmission gear are rotatably connected to the support frame. Driving gears are fixedly connected to both sides of the centrifugal casting machine body. The driving gear meshes with the transmission gear. A positioning rod slidably connected to the support plate is fixedly connected to one side of the slider close to the fixed block. A reset elastic member is sleeved outside the positioning rod. One end of the reset elastic member is fixedly connected to the slider, and the other end of the reset elastic member is fixedly connected to the support plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. For this tiltable vertical and horizontal multi-functional centrifugal casting machine, when it is necessary to switch the centrifugal casting machine body from the horizontal state to the vertical state for operation, only need to start the motor, drive the centrifugal casting machine body to rotate to the vertical state through the motor, and perform auxiliary fixation through the auxiliary positioning component.

[0014] 2. For this tiltable vertical and horizontal multi-functional centrifugal casting machine, during the rotation process of the centrifugal casting machine body from the horizontal state to the vertical state, the limiting component will traction and pull the feeding component, so that the end of the feeding component extends into the mold, which is convenient for feeding when the centrifugal casting machine body is in the vertical state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is of the present invention Figure 1 partial enlarged structural schematic diagram of part A in; Figure 3 is of the present invention Figure 1 partial enlarged structural schematic diagram of part B in; Figure 4 is a schematic bottom view structural diagram of the whole of the present invention; Figure 5 is of the present invention Figure 4 partial enlarged structural schematic diagram of part C in; Figure 6 is a schematic structural diagram of another state of the whole of the present invention; Figure 7 is a schematic structural diagram of the base of the present invention; Figure 8 is a schematic connection structural diagram of the fixed block and the support plate of the present invention; Figure 9 is a schematic structural diagram of the winding roller of the present invention; Figure 10This is a partial cross-sectional view of the material guide pipe and the material guide hopper of the present invention; Figure 11 This is a schematic diagram of the connection structure between the sliding frame and the adjustment gear of the present invention.

[0016] In the figure: 1. Centrifugal casting machine main body; 2. Base; 3. Support frame; 4. Rotation groove; 5. Hinge block; 6. Support cylinder; 7. Support block; 8. Flange; 9. Annular groove; 10. Mold; 11. Material guide pipe; 12. Material guide hopper; 13. Rotation ring; 14. Fixed block; 15. Slot; 16. Insert block; 17. Fixed bolt; 18. Support plate; 19. Guide rail; 20. Tooth block; 21. Slide block; 22. Positioning rod; 23. Reset elastic member; 24. Sliding frame; 25. Adjustment gear; 26. Hole groove; 27. Traction rope; 28. Winding roller; 29. Transmission gear; 30. Driving gear; 31. Connecting rod; 32. Positioning block; 33. Motor; 34. Mounting plate. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] Please refer to Figures 1 to 11 , a tiltable vertical and horizontal multi-functional centrifugal casting machine, including a centrifugal casting machine main body 1. A flange 8 is fixedly connected to the end of the centrifugal casting machine main body 1, and a mold 10 is fixedly connected to the flange 8. A base 2 is provided at the bottom of the centrifugal casting machine main body 1. A group of symmetrically arranged support frames 3 are fixedly connected to the top of the base 2. The centrifugal casting machine main body 1 is rotatably connected to the upper ends of the support frames 3. One side of one of the support frames 3 is fixedly connected to a mounting plate 34. One side of the mounting plate 34 is fixedly connected to a motor 33. The output end of the motor 33 is fixedly connected to the side wall of the centrifugal casting machine main body 1. An auxiliary positioning assembly is rotatably connected to one side of the flange 8. A support assembly is rotatably connected to the upper end of the support frame 3. One end of the support assembly away from the support frame 3 is slidably connected to a feeding assembly. A limiting assembly is connected to one side of the support frame 3.

[0019] In the tilting horizontal-vertical multi-functional centrifugal casting machine of the present invention, when it is necessary to switch the main body 1 of the centrifugal casting machine from the horizontal position to the vertical position for work, only need to start the motor 33, and drive the main body 1 of the centrifugal casting machine to rotate to the vertical state (that is, rotate 90°) through the motor 33. During the entire adjustment process, the auxiliary positioning component will also assist in fixing. After the adjustment is completed, the auxiliary positioning component will also fix and limit the flange 8 to prevent the main body 1 of the centrifugal casting machine from shaking. At the same time, when the main body 1 of the centrifugal casting machine needs to be switched from the vertical position to the horizontal position for work, only need to start the motor 33 and let the motor 33 rotate reversely by 90°. The above structure enables the main body 1 of the centrifugal casting machine to be freely switched between a horizontal centrifugal casting machine and a vertical centrifugal casting machine, realizing multi-purpose use of one machine, reducing the number of installed centrifugal casting machines, thereby reducing the occupied area of installation and reducing the investment cost. In addition, the structure of the main body 1 of the centrifugal casting machine in the present invention is similar to that of a horizontal centrifugal casting machine disclosed in the patent with the patent authorization announcement number CN109590443B, so no more elaboration will be made here.

[0020] As a preferred technical solution of the present invention, the auxiliary positioning component includes a support cylinder 6 and a support block 7. An annular groove 9 is opened on the outer wall of the flange 8, and a support block 7 is slidably connected inside the annular groove 9. A group of symmetrically arranged hinge blocks 5 are fixedly connected to the top of the base 2 near one end of the mold 10, and a support cylinder 6 rotatably connected therebetween is arranged between the hinge blocks 5. The output end of the support cylinder 6 is hinged to the support block 7.

[0021] Specifically, during the rotation of the motor 33, the support cylinder 6 will move synchronously, which can provide support for the main body 1 of the centrifugal casting machine, prevent the motor shaft of the motor 33 from being subjected to excessive force and causing damage to the motor 33. At the same time, after the state of the main body 1 of the centrifugal casting machine is switched, the support cylinder 6 can also play a role of supporting and positioning, making the main body 1 of the centrifugal casting machine more stable and not prone to shaking, and preventing the vibration generated by the main body 1 of the centrifugal casting machine during work from damaging the equipment; at the same time, the support cylinder 6 is supplied with gas by an external gas source (such as an air pump). In addition, in the present invention, both the motor 33 and the support cylinder 6 are controlled by an external control system (such as a control cabinet or a control panel). Since these are all existing products or technologies, no more elaboration will be made here.

[0022] As a preferred technical solution of the present invention, the support assembly includes a rotating ring 13, a fixed block 14, a plug block 16, a fixing bolt 17 and a support plate 18. A rotating groove 4 is formed at the top of the support frame 3, and a rotating ring 13 is rotatably connected inside the rotating groove 4. A fixed block 14 is fixedly connected to the side of the rotating ring 13 close to the mold 10. A slot 15 is formed at one end of the fixed block 14 away from the rotating ring 13. A plug block 16 is slidably connected inside the slot 15. A support plate 18 is fixedly connected to the end of the plug block 16 away from the fixed block 14. A fixing bolt 17 is slidably connected at the middle position of the plug block 16, and the fixing bolt 17 is threadedly connected to the fixed block 14.

[0023] As a preferred technical solution of the present invention, the feeding assembly includes a feeding pipe 11, a slider 21 and a guide rail 19. A feeding pipe 11 is provided at the middle position of the end of the mold 10 away from the centrifugal casting machine main body 1. A guide rail 19 is fixedly connected to the end of the support plate 18 away from the fixed block 14. A slider 21 is slidably connected to the guide rail 19, and one side of the slider 21 is fixedly connected to the feeding pipe 11.

[0024] Specifically, after the mold 10 is installed on the flange 8, a support assembly with a suitable size can be selected according to the size of the mold 10. Then, the plug block 16 at the end of the support plate 18 is inserted into the slot 15 and fixed by the fixing bolt 17. Subsequently, by pushing the slider 21, the position of the discharging end of the feeding pipe 11 inside the mold 10 can be adjusted (for example, when the centrifugal casting machine main body 1 is in a horizontal state, the discharging end of the feeding pipe 11 only needs to be located at one end inside the mold 10, while if the centrifugal casting machine main body 1 is in a vertical state, the discharging end of the feeding pipe 11 needs to be close to the bottom of the mold 10 to prevent material splashing).

[0025] As a preferred technical solution of the present invention, a set of symmetrically arranged positioning blocks 32 are fixedly connected to the end of the feeding pipe 11 away from the mold 10. A feeding hopper 12 is provided between the two positioning blocks 32. A connecting rod 31 is rotatably connected at the middle position of the positioning blocks 32, and one end of the connecting rod 31 close to the positioning blocks 32 is fixedly connected to the feeding hopper 12.

[0026] As a preferred technical solution of the present invention, one end of the connecting rod 31 away from the positioning blocks 32 is rotatably connected to a sliding frame 24. An adjusting gear 25 fixedly connected to the connecting rod 31 is provided inside the sliding frame 24. A toothed block 20 is fixedly connected to the bottom of the guide rail 19 at the upper end of the support plate 18, and the toothed block 20 meshes with the adjusting gear 25.

[0027] As a preferred technical solution of the present invention, the limiting component includes a positioning rod 22, a reset elastic member 23, a traction rope 27, a winding roller 28, a transmission gear 29, and a driving gear 30. A hole slot 26 is formed at the lower end of the support plate 18. The traction rope 27 passes through the inside of the hole slot 26. One end of the traction rope 27 is fixedly connected to the slider 21, and the other end of the traction rope 27 is fixedly connected to the winding roller 28. A transmission gear 29 is fixedly connected to one side of the winding roller 28 close to the support frame 3. The winding roller 28 and the transmission gear 29 are rotatably connected to the support frame 3. Driving gears 30 are fixedly connected to both sides of the centrifugal casting machine main body 1. The driving gear 30 is meshed with the transmission gear 29. A positioning rod 22 slidably connected to the support plate 18 is fixedly connected to one side of the slider 21 close to the fixed block 14. A reset elastic member 23 is sleeved outside the positioning rod 22. One end of the reset elastic member 23 is fixedly connected to the slider 21, and the other end of the reset elastic member 23 is fixedly connected to the support plate 18.

[0028] Specifically, when the centrifugal casting machine main body 1 is adjusted from the horizontal position to the vertical position, the mold 10 will push the material guiding pipe 11, and drive the support plate 18 to rotate together through the material guiding pipe 11. During the rotation of the support plate 18 together with the centrifugal casting machine main body 1, the driving gear 30 fixedly connected to the centrifugal casting machine main body 1 will push the meshed transmission gear 29 to rotate. Since the diameter of the transmission gear 29 is much smaller than the diameter of the driving gear 30, even if the driving gear 30 (rotating clockwise) only rotates by 90°, the transmission gear 29 will still rotate multiple circles. During the rotation of the transmission gear 29, the winding roller 28 fixedly connected to the transmission gear 29 will also rotate synchronously (at this time, the winding roller 28 rotates counterclockwise), so as to wind the traction rope 27. When the traction rope 27 is wound, it will pull the slider 21 to slide towards the support frame 3, so that the discharging end of the material guiding pipe 11 extends into the mold 10; At the same time, when the material guiding pipe 11 moves towards the support frame 3, the positioning block 32 fixedly connected to the material guiding pipe 11 will pull the material guiding hopper 12 to move towards the support frame 3 together. Connecting rods 31 are fixedly connected to both sides of the material guiding hopper 12, and adjusting gears 25 are fixedly connected to the ends of the connecting rods 31. Therefore, the adjusting gears 25 will move towards the support frame 3 together with the material guiding hopper 12. Also, because the adjusting gears 25 are meshed with the tooth blocks 20, when the adjusting gears 25 move, they will also rotate synchronously (the direction of this rotation is counterclockwise). In this way, the adjusting gears 25 will drive the material guiding hopper 12 to rotate together, so that the opening of the material guiding hopper 12 always faces upwards, which is convenient for subsequent feeding; In addition, when the main body 1 of the centrifugal casting machine is switched from the vertical state to the horizontal state, the driving gear 30 will rotate in the reverse direction (i.e., counterclockwise). The transmission gear 29 meshed with the driving gear 30 will drive the winding roller 28 to rotate clockwise, thereby releasing the traction rope 27. The slider 21 loses the restriction of the traction rope 27, and the reset elastic member 23 will push the slider 21 back to its original position. The slider 21 will then bring the material guiding pipe 11 and the material guiding hopper 12 back to their original positions together. During the sliding process of the slider 21, under the push of the tooth block 20, the adjusting gear 25 will drive the material guiding hopper 12 to rotate clockwise, so that the opening of the material guiding hopper 12 remains facing upward, facilitating feeding.

[0029] It should be noted that: the main body 1 of the centrifugal casting machine in the present invention can also be switched to an inclined state for use. As long as the rotation angle of the motor 33 and the pushing distance of the support cylinder 6 are calculated, the main body 1 of the centrifugal casting machine can be switched from the horizontal (or vertical) state to the inclined state.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A tiltable vertical and horizontal multi-functional centrifugal casting machine, comprising a centrifugal casting machine main body (1), a flange (8) is fixedly connected to the end of the centrifugal casting machine main body (1), and a mold (10) is fixedly connected to the flange (8), characterized in that, The bottom of the centrifugal casting machine main body (1) is provided with a base (2). A group of symmetrically arranged support frames (3) are fixedly connected to the top of the base (2). The centrifugal casting machine main body (1) is rotatably connected to the upper ends of the support frames (3). One side of one of the support frames (3) is fixedly connected with a mounting plate (34). One side of the mounting plate (34) is fixedly connected with a motor (33). The output end of the motor (33) is fixedly connected to the side wall of the centrifugal casting machine main body (1). One side of the flange plate (8) is rotatably connected with an auxiliary positioning component. The upper end of the support frame (3) is rotatably connected with a support component. One end of the support component away from the support frame (3) is slidably connected with a feeding component. One side of the support frame (3) is connected with a limiting component.

2. The tiltable vertical and horizontal multi-functional centrifugal casting machine according to claim 1, characterized in that, The auxiliary positioning component includes a support cylinder (6) and a support block (7). An annular groove (9) is formed in the outer wall of the flange plate (8). The support block (7) is slidably connected to the inside of the annular groove (9). A group of symmetrically arranged hinge blocks (5) are fixedly connected to one end of the base (2) near the mold (10). A support cylinder (6) rotatably connected therebetween is arranged between the hinge blocks (5). The output end of the support cylinder (6) is hinged to the support block (7).

3. The tilting vertical and horizontal multi-functional centrifugal casting machine according to claim 1, characterized in that, The support component includes a rotating ring (13), a fixing block (14), a plug block (16), a fixing bolt (17) and a support plate (18). A rotating groove (4) is formed in the top of the support frame (3). The rotating ring (13) is rotatably connected to the inside of the rotating groove (4). A fixing block (14) is fixedly connected to one side of the rotating ring (13) close to the mold (10). A slot (15) is formed at one end of the fixing block (14) away from the rotating ring (13). The plug block (16) is slidably connected to the inside of the slot (15). A support plate (18) is fixedly connected to one end of the plug block (16) away from the fixing block (14). A fixing bolt (17) is slidably connected to the middle position of the plug block (16). The fixing bolt (17) is threadedly connected to the fixing block (14).

4. A tiltable vertical and horizontal multi-functional centrifugal casting machine according to claim 3, characterized in that, The feeding component includes a material guiding pipe (11), a slider (21) and a guide rail (19). A material guiding pipe (11) is arranged at the middle position of one end of the mold (10) away from the centrifugal casting machine main body (1). A guide rail (19) is fixedly connected to one end of the support plate (18) away from the fixing block (14). The slider (21) is slidably connected to the guide rail (19). One side of the slider (21) is fixedly connected to the material guiding pipe (11).

5. The tiltable vertical and horizontal multi-functional centrifugal casting machine according to claim 4, characterized in that, A group of symmetrically arranged positioning blocks (32) are fixedly connected to one end of the material guiding pipe (11) away from the mold (10). A material guiding hopper (12) is arranged between the two positioning blocks (32). A connecting rod (31) is rotatably connected to the middle position of the positioning block (32). One end of the connecting rod (31) close to the positioning block (32) is fixedly connected to the material guiding hopper (12).

6. The tilting vertical-horizontal multi-functional centrifugal casting machine according to claim 5, characterized in that One end of the connecting rod (31) away from the positioning block (32) is rotatably connected to a sliding frame (24); an adjusting gear (25) fixedly connected to the connecting rod (31) is provided inside the sliding frame (24); a tooth block (20) is fixedly connected to the bottom of the guide rail (19) located at the upper end of the support plate (18); the tooth block (20) is meshed with the adjusting gear (25).

7. A tiltable vertical and horizontal multi-functional centrifugal casting machine according to claim 4, characterized in that, The limiting assembly comprises a positioning rod (22), a reset elastic member (23), a traction rope (27), a winding roller (28), a transmission gear (29) and a driving gear (30); a hole groove (26) is provided at the lower end of the support plate (18); a traction rope (27) is passed through the hole groove (26); one end of the traction rope (27) is fixedly connected to the slider (21); the other end of the traction rope (27) is fixedly connected to the winding roller (28); a transmission gear (29) is fixedly connected to the side of the winding roller (28) close to the support frame (3); the winding roller (28) The centrifugal casting machine body (1) is rotatably connected to a transmission gear (29), and driving gears (30) are fixedly connected to both sides of the centrifugal casting machine body (1), and the driving gears (30) are meshed with the transmission gears (29). A positioning rod (22) slidably connected to the support plate (18) is fixedly connected to the side of the slider (21) close to the fixed block (14), and a reset elastic member (23) is sleeved on the outside of the positioning rod (22), one end of the reset elastic member (23) is fixedly connected to the slider (21), and the other end of the reset elastic member (23) is fixedly connected to the support plate (18).

Images