Transportation device for plastic mold processing

Abstract

The invention relates to the technical field of plastic mold transportation, and discloses a transportation device for plastic mold processing, which comprises a cart body and a storage box placed at the top of the cart body, the storage box is used for placing a plastic mold, and two groups of rollers and two groups of steering wheels are arranged at the bottom of the cart body. Through the arranged control device, when an operator pushes the cart body to move and needs to conduct steering operation, the control rod only needs to be pulled to swing at the position hinged to the supporting frame, the control rod can abut against the movable plate to move at the bottom of the cart body, and the moving direction of the movable plate is opposite to the swing direction of the end of the control rod; the movable plate pulls the swing arm through the vertical rod, so that the steering wheels swing, steering is achieved, and the situation that the plastic mold shakes and collides due to the fact that the two sets of steering wheels swing at the same time, and clamping occurs during pushing due to the fact that the deflection directions are inconsistent can be effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of plastic mold transportation technology, specifically a transportation device for plastic mold processing. Background Technology

[0002] Plastic molds are tools used to process and shape plastic products. They enable mass production by giving plastics specific shapes and precise dimensions, and are widely used in the automotive, home appliance, and electronics industries.

[0003] Currently, after plastic molds are processed, they are packaged and transported. For short-distance transport within the factory area, trolleys are usually used. Typical trolleys are equipped with casters at the bottom for movement and steering. However, in actual operation, when the casters rotate, the two front casters are prone to misalignment, causing jamming during pushing. The operator needs to apply a certain amount of force to adjust them. Sudden jamming can easily cause the plastic molds stored on top of the trolley to shake, and the molds may collide with each other, resulting in damage. To address this, we propose a transport device for plastic mold processing. Summary of the Invention

[0004] The purpose of this invention is to provide a transport device for plastic mold processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a transport device for processing plastic molds, comprising a trolley body and a storage box placed on top of the trolley body, the storage box being used to place plastic molds, two sets of rollers and two sets of steering wheels being provided at the bottom of the trolley body, a control device for controlling the rotation of the steering wheels being provided on the steering wheels and the trolley body, and a driven device for removing sand and gravel adhering to the outer wall of the steering wheels being provided at the bottom of the trolley body; The control device includes: a universal joint, a rotating rod, a support plate, a linkage bearing, a swing arm, a vertical rod, a moving plate, a control rod, a support frame, and a spring. The universal joint and the rotating rod are connected to the steering wheel, and together with the support plate, the steering wheel is connected to the trolley body. The control rod controls the movement of the moving plate by abutting against it. The spring plate provides elastic support for the control rod. The linkage bearing, together with the swing arm, supports the steering wheel. The vertical rod moves with the moving plate and controls the swing of the steering wheel by pulling the swing arm.

[0006] Optionally, the support plate is fixed to the bottom of the trolley body, the rotating rod passes through the support plate and is rotatably connected to the support plate, the rotating rod is connected to the steering wheel via a universal joint, the linkage bearing is located on the side of the steering wheel near the support plate, a swing arm is fixed to the outer wall of the linkage bearing, the vertical rod passes through the swing arm and is rotatably connected to the swing arm, the top of the vertical rod is fixed to the bottom of the moving plate, the moving plate is slidably mounted on the bottom of the trolley body, the support frame is fixed to the bottom of the trolley body, the control rod passes through the support frame and is hinged to the support frame, a spring is fixed between the control rod and the support frame, and the swing arm is connected via a linkage. The bearing can pull the steering wheel to rotate, and the bearing design will not affect the normal rotation of the steering wheel. When the operator pushes the trolley body to move and needs to perform a steering operation, the moving plate pulls the swing arm through the vertical rod, causing the steering wheel to swing and achieve steering. By swinging the two sets of steering wheels at the same time, it can effectively avoid inconsistent deflection directions, which can cause jamming during pushing and cause the plastic mold to shake or collide. In addition, the control rod is not directly connected to the moving plate but is triggered by a contact method, which provides a certain amount of redundancy space. This avoids accidental activation that could cause the steering wheel to deflect, while ensuring that the steering wheel can deflect more smoothly.

[0007] Optionally, the driven device includes a rack plate, which is fixed to the side of the moving plate away from the support plate. The rack plate meshes with a gear. A connecting rod is fixed to the bottom of the gear, and an abutment block is fixed to the outer wall of the connecting rod. A fixing rod is fixed to the bottom of the trolley body, and the bottom of the fixing rod is slidably connected to the slide plate. A groove is formed on the top of the slide plate, and a return spring is fixed to the inner side of the groove. One end of the return spring away from the inner wall of the groove is fixed to the fixing rod. Brush bristles are provided on the side of the slide plate near the connecting rod, and a mating block is fixed on the side of the slide plate near the brush bristles. When the moving plate moves, it drives the rack plate to move, thereby controlling the gear to rotate at a certain angle. The gear drives the connecting rod and the abutment block to rotate. The abutment block controls the movement of the slide plate by abutting against the mating block. With the help of the return spring, when the abutment block no longer abuts against the mating block, the slide plate can return to its original position. This achieves the control of the slide plate to move back and forth once. When the slide plate moves, it can drive the brush to move and clean the surface of the steering wheel once. This can sweep off the stones attached to the surface of the steering wheel tire, preventing stones from adhering to the surface of the steering wheel and causing accelerated wear of the steering wheel due to friction with the ground when rolling, which would affect the service life of the steering wheel.

[0008] Optionally, the support plate and the rotating rod are provided with a limiting device, the limiting device including a placement platform, the placement platform being lower in the middle and higher on both sides, the placement platform being fixed to the inner wall of the support plate, an iron ball being placed on the top of the placement platform, a ratchet and a rubber convex ball being provided on the outer wall of the rotating rod, a crossbar being provided on the side of the support plate, the crossbar passing through the side of the support plate and slidably connected to the support plate, a connecting spring being fixed to the side of the support plate, the end of the connecting spring away from the support plate being fixed to the crossbar, and a pressure plate being fixed to the end of the crossbar near the center of the support plate. Two sets of connecting springs and pressure plates are provided, and the two sets of crossbars, connecting springs, and pressure plates are symmetrically arranged. One set of crossbars has a connecting rod fixed to its end furthest from the center of the support plate. The connecting rod passes through the support plate and is slidably connected to it. A pawl is provided at the end of the connecting rod furthest from the crossbar. The other set of crossbars has a connecting rod fixed to its end furthest from the center of the support plate. An arc-shaped rod is fixed to the end of the connecting rod furthest from the crossbar. A rubber deceleration ball is fixed to the side of the arc-shaped rod near the rotating rod. As the trolley body moves forward, as shown in the attached diagram, the steering wheel rotates counterclockwise. When the trolley body is on a flat surface... When the cart is on a downhill slope, the iron ball is centered on the platform. When the cart is on a downhill slope, the entire cart tilts, and the iron ball rolls to the left. The iron ball contacts the pressure plate on the crossbar connected to the linkage, pushing the pressure plate and crossbar to the left. The crossbar moves the linkage and the curved rod together, and the curved rod moves the rubber deceleration ball closer to the rotating rod. The rubber deceleration ball contacts the rubber convex ball on the outer wall of the rotating rod, effectively slowing down the rotation speed of the rotating rod through friction. This reduces the rolling speed of the steering wheel downhill, ensuring safety. When the cart is on an uphill slope, the entire cart tilts, and the iron ball rolls to the left. The body tilts, and the iron ball rolls to the right, hitting the pressure plate on the crossbar connected to the connecting rod. The crossbar moves the connecting rod to the right, and the connecting rod, with its pawl, connects to the ratchet on the outer wall of the rotating rod. The ratchet and pawl engage to restrict the rotating rod in one direction, allowing it to rotate only counterclockwise and not clockwise. This prevents the trolley from sliding uphill even if the operator releases it, making it easier for the operator to operate while ensuring safety. In case of an emergency uphill, the operator can immediately release the trolley, effectively protecting the plastic mold.

[0009] Compared with the prior art, the present invention provides a transport device for plastic mold processing, which has the following advantages: 1. This transport device for plastic mold processing, through its control mechanism, allows the operator to perform steering operations when pushing the trolley body. Simply pull the control lever to swing it at the hinged position with the support frame. The control lever then moves against a movable plate at the bottom of the trolley body. The direction of the movable plate's movement is opposite to the swing direction of the control lever. The movable plate pulls the swing arm via a vertical rod, causing the steering wheels to swing and thus achieving steering. Simultaneous swinging of two sets of steering wheels effectively prevents inconsistent deflection directions, which could cause jamming during pushing, resulting in shaking or collision of the plastic mold. Furthermore, the control lever is not directly connected to the movable plate but triggered by contact, providing a certain amount of redundancy. This prevents accidental deflection of the steering wheels while ensuring smoother steering wheel rotation.

[0010] 2. This plastic mold processing transport device, through its control and driven mechanisms, allows the moving plate to move, which in turn drives the rack plate to move. This controls the gear to rotate at a certain angle, which in turn drives the connecting rod and the contact block to rotate. The contact block controls the movement of the slide plate by contacting the mating block. With the help of a return spring, the slide plate returns to its original position when the contact block no longer contacts the mating block. This allows the slide plate to move back and forth once. As the slide plate moves, it also drives the brush to move and clean the surface of the steering wheel once, removing stones that are attached to the surface of the steering wheel tires. This prevents stones from adhering to the surface of the steering wheel and causing accelerated wear due to friction with the ground during rolling, thus affecting the service life of the steering wheel.

[0011] 3. This transport device for plastic mold processing, through its limiting mechanism, allows the trolley to tilt when it is on a downhill slope. This tilts the trolley body, causing the arc-shaped rod to move closer to the rotating rod with rubber deceleration balls. The rubber deceleration balls abut against the rubber protrusions on the outer wall of the rotating rod, effectively slowing down the rotation speed of the rotating rod through friction. This reduces the rolling speed of the steering wheel downhill, ensuring safety. When the trolley is on an uphill slope, the connecting rod can be connected to the ratchet on the outer wall of the rotating rod with a pawl. The ratchet and pawl engage to restrict the rotating rod in one direction, allowing it to rotate only counterclockwise and not clockwise. This prevents the trolley from sliding uphill even if the operator releases it, making operation easier and ensuring safety. In case of emergency uphill, the operator can immediately release the trolley, effectively protecting the plastic mold. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall front view of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from a bottom view; Figure 3 This is a schematic diagram of the connection structure between the control device, the driven device, and the steering wheel of the present invention; Figure 4 This is a schematic diagram of a partial structure connecting the control device and the steering wheel of the present invention; Figure 5 This is a partial top view of the connection between the driven device and the control device of the present invention; Figure 6 This is a partial side view of the connection between the driven device and the control device of the present invention; Figure 7 This is a schematic cross-sectional view of the connection between the support plate and the limiting device of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of A in the middle; Figure 9 This is a schematic diagram of the rubber convex ball structure on the outer wall of the rotating rod of the present invention.

[0013] In the diagram: 1. Trolley body; 2. Control device; 21. Universal joint; 22. Rotating rod; 23. Support plate; 24. Linkage bearing; 25. Swing arm; 26. Vertical rod; 27. Moving plate; 28. Control rod; 29. ​​Support frame; 210. Spring; 3. Driven device; 31. Rack plate; 32. Gear; 33. Connecting rod; 34. Abutting block; 35. Fixed rod; 36. Slide plate; 37. Return spring; 38. Brush bristles; 39. Mating block; 4. Limiting device; 41. Placement platform; 42. Iron ball; 43. Ratchet; 44. Rubber convex ball; 45. Crossbar; 46. Connecting spring; 47. Pressure plate; 48. Connecting rod; 49. Pawl; 410. Linkage rod; 411. Arc rod; 412. Rubber deceleration ball; 5. Storage box; 6. Roller; 7. Steering wheel. Detailed Implementation

[0014] like Figures 1-9 As shown, the present invention provides a technical solution: a transport device for processing plastic molds, including a trolley body 1 and a storage box 5 placed on top of the trolley body 1. The storage box 5 is used to place plastic molds. The bottom of the trolley body 1 is provided with two sets of rollers 6 and two sets of steering wheels 7. The steering wheels 7 and the trolley body 1 are provided with a control device 2 for controlling the rotation of the steering wheels 7. The bottom of the trolley body 1 is provided with a driven device 3 for removing sand and gravel adhering to the outer wall of the steering wheels 7.

[0015] The control device 2 includes a support plate 23, which is fixed to the bottom of the trolley body 1. A rotating rod 22 passes through the support plate 23 and is rotatably connected to it. The rotating rod 22 is connected to the steering wheel 7 via a universal joint 21. A linkage bearing 24 is located on the side of the steering wheel 7 near the support plate 23. A swing arm 25 is fixed to the outer wall of the linkage bearing 24. A vertical rod 26 passes through the swing arm 25 and is rotatably connected to it. The top of the vertical rod 26 is fixed to the bottom of a moving plate 27, which is slidably mounted on the bottom of the trolley body 1. A support frame 29 is fixed to the bottom of the trolley body 1. A control rod 28 passes through the support frame 29 and is hinged to it. A spring piece 210 is fixed between the control rod 28 and the support frame 29. The swing arm 25 can pull the steering wheel 7 to rotate via the linkage bearing 24. Furthermore, the bearing design prevents... To affect the normal rotation of the steering wheel 7, when the operator needs to perform a steering operation while pushing the trolley body 1, simply pull the control lever 28 to swing it at the hinged position with the support frame 29. The control lever 28 will then move against the moving plate 27 at the bottom of the trolley body 1. The direction of movement of the moving plate 27 is opposite to the direction of swing of the end of the control lever 28. The moving plate 27 pulls the swing arm 25 through the vertical rod 26, causing the steering wheel 7 to swing and achieve steering. By swinging the two sets of steering wheels 7 simultaneously, it can effectively avoid inconsistent deflection directions, which could cause jamming during pushing and lead to shaking or collision of the plastic mold. Furthermore, since the control lever 28 and the moving plate 27 are not directly connected but triggered by contact, a certain amount of redundancy is reserved. This avoids accidental contact that could cause the steering wheel 7 to deflect, while ensuring that the steering wheel 7 can deflect more smoothly.

[0016] In this embodiment, the driven device 3 includes a rack plate 31, which is fixed to the side of the moving plate 27 away from the support plate 23. The rack plate 31 meshes with a gear 32. A connecting rod 33 is fixed to the bottom of the gear 32, and an abutment block 34 is fixed to the outer wall of the connecting rod 33. A fixing rod 35 is fixed to the bottom of the trolley body 1, and the bottom of the fixing rod 35 is slidably connected to the slide plate 36. A groove is provided on the top of the slide plate 36, and a return spring 37 is fixed to the inner side of the groove. One end of the return spring 37 away from the inner wall of the groove is fixed to the fixing rod 35. Brush bristles 38 are provided on the side of the slide plate 36 near the connecting rod 33, and a mating block 39 is fixed on the side of the slide plate 36 near the brush bristles 38. When the moving plate 27 moves... When the moving plate 27 moves, it can drive the rack plate 31 to move, thereby controlling the gear 32 to rotate at a certain angle. The gear 32 drives the connecting rod 33 and the abutting block 34 to rotate. The abutting block 34 controls the movement of the slide plate 36 by abutting against the mating block 39. With the help of the return spring 37, when the abutting block 34 no longer abuts against the mating block 39, the slide plate 36 can be reset, thereby controlling the slide plate 36 to move back and forth once. When the slide plate 36 moves, it can drive the brush bristles 38 to move and clean the surface of the steering wheel 7 once, which can sweep off the stones attached to the surface of the steering wheel 7 tire, and prevent the stones attached to the surface of the steering wheel 7 from rubbing against the ground when rolling, which would cause the steering wheel 7 to wear faster and affect the service life of the steering wheel 7.

[0017] In addition, a limiting device 4 is provided on the support plate 23 and the rotating rod 22. The limiting device 4 includes a placement platform 41, which is lower in the middle and higher on both sides. The placement platform 41 is fixed to the inner wall of the support plate 23. An iron ball 42 is placed on the top of the placement platform 41. A ratchet 43 and a rubber convex ball 44 are provided on the outer wall of the rotating rod 22. A crossbar 45 is provided on the side of the support plate 23. The crossbar 45 passes through the side of the support plate 23 and is slidably connected to the support plate 23. A connecting spring 46 is fixed on the side of the support plate 23. The end of the connecting spring 46 away from the support plate 23 is fixed to the crossbar 45. A pressure plate 47 is fixed on the end of the crossbar 45 near the center of the support plate 23. The crossbar 45 and the connecting spring 46 are also fixed to the support plate 23. Both the crossbar 45 and the pressure plate 47 are provided with two sets, and the two sets of crossbars 45, connecting springs 46 and pressure plates 47 are symmetrically arranged. One set of crossbars 45 has a connecting rod 48 fixed at the end away from the center of the support plate 23. The connecting rod 48 passes through the support plate 23 and is slidably connected to the support plate 23. A pawl 49 is provided at the end of the connecting rod 48 away from the crossbar 45. The other set of crossbars 45 has a connecting rod 410 fixed at the end away from the center of the support plate 23. An arc-shaped rod 411 is fixed at the end of the connecting rod 410 away from the crossbar 45. A rubber deceleration ball 412 is fixed on the side of the arc-shaped rod 411 near the rotating rod 22. During the forward movement of the trolley body 1, as shown in the attached figure, the steering wheel 7 rotates counterclockwise. When the trolley body 1 is in a flat position... When the ground is level, the iron ball 42 is located at the center of the placement platform 41. When the trolley body 1 is on a downhill section, the trolley body 1 tilts as a whole, and the iron ball 42 rolls to the left. The iron ball 42 abuts against the pressure plate 47 on the crossbar 45 connected to the connecting rod 410, pushing the pressure plate 47 and the crossbar 45 to move to the left. The crossbar 45 moves together with the connecting rod 410 and the arc rod 411. The arc rod 411 moves the rubber deceleration ball 412 closer to the rotating rod 22. The rubber deceleration ball 412 abuts against the rubber convex ball 44 on the outer wall of the rotating rod 22. Through friction between the rubbers, the rotation speed of the rotating rod 22 is effectively reduced, thereby slowing down the rolling speed of the steering wheel 7 when going downhill, ensuring safety. When the trolley body 1 is on an uphill section, the entire trolley body 1 tilts, and the iron ball 42 rolls to the right. The iron ball 42 abuts against the pressure plate 47 on the crossbar 45 connected to the connecting rod 48. The crossbar 45 moves to the right along with the connecting rod 48. The connecting rod 48, along with the pawl 49, connects to the ratchet 43 on the outer wall of the rotating rod 22. The ratchet 43 and the pawl 49 engage to restrict the rotating rod 22 in one direction, so that the rotating rod 22 can only rotate counterclockwise and not clockwise. This ensures that even if the operator releases the trolley body 1, the trolley body 1 cannot slide along the uphill section. This makes it easier for the operator to operate while ensuring safety. In case of an emergency while going uphill, the operator can release the trolley body at any time.

[0018] As one application of this embodiment: After processing, the plastic mold is placed in storage box 5 for storage. When transporting, the operator only needs to hold the handle of the trolley body 1 and push the trolley body 1 to carry out the transportation operation.

[0019] When a steering operation is required, simply pull the control lever 28 to swing it at the position where it is hinged to the support frame 29. The control lever 28 will then move against the moving plate 27 at the bottom of the trolley body 1. The direction of movement of the moving plate 27 is opposite to the direction of swing of the end of the control lever 28. The moving plate 27 pulls the swing arm 25 through the vertical rod 26, causing the steering wheel 7 to swing and achieve steering.

[0020] When the movable plate 27 moves, it drives the rack plate 31 to move, thereby controlling the gear 32 to rotate at a certain angle. The gear 32 drives the connecting rod 33 and the contact block 34 to rotate. The contact block 34 controls the movement of the slide plate 36 by abutting against the mating block 39. With the help of the return spring 37, when the contact block 34 no longer abuts against the mating block 39, the slide plate 36 can be reset, thereby controlling the slide plate 36 to move back and forth once. When the slide plate 36 moves, it can drive the brush bristles 38 to move and clean the surface of the steering wheel 7 once. This can sweep off the stones attached to the surface of the steering wheel 7 tire, preventing stones from adhering to the surface of the steering wheel 7 and causing accelerated wear of the steering wheel 7 due to friction with the ground when rolling, thus affecting the service life of the steering wheel 7.

[0021] When the trolley body 1 is on a flat surface, the iron ball 42 is located at the center of the placement platform 41. When the trolley body 1 is on a downhill section, the trolley body 1 tilts as a whole, and the iron ball 42 rolls to the left. The iron ball 42 abuts against the pressure plate 47 on the crossbar 45 connected to the connecting rod 410, pushing the pressure plate 47 and the crossbar 45 to move to the left. The crossbar 45 moves together with the connecting rod 410 and the arc rod 411. The arc rod 411 moves the rubber deceleration ball 412 closer to the rotating rod 22. The rubber deceleration ball 412 abuts against the rubber convex ball 44 on the outer wall of the rotating rod 22. Through the friction between the rubbers, the rotation speed of the rotating rod 22 is effectively reduced, thereby slowing down the rolling speed of the steering wheel 7 when going downhill, ensuring safety. When the cart body 1 is on an uphill section, the entire cart body 1 tilts, and the iron ball 42 rolls to the right. The iron ball 42 abuts against the pressure plate 47 on the crossbar 45 connected to the connecting rod 48. The crossbar 45 moves to the right along with the connecting rod 48. The connecting rod 48, along with the pawl 49, connects to the ratchet 43 on the outer wall of the rotating rod 22. The ratchet 43 and the pawl 49 engage to restrict the rotating rod 22 in one direction, so that the rotating rod 22 can only rotate counterclockwise and not clockwise. This ensures that even if the operator releases the cart body 1, the cart body 1 cannot slide along the uphill section, making it easier for the operator to operate while ensuring safety. In case of an emergency while going uphill, the operator can release the cart body at any time.

[0022] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A transport device for processing plastic molds, comprising a trolley body (1) and a storage box (5) placed on top of the trolley body (1), the storage box (5) being used to hold plastic molds, characterized in that: The bottom of the trolley body (1) is provided with two sets of rollers (6) and two sets of steering wheels (7). The steering wheels (7) and the trolley body (1) are provided with a control device (2) for controlling the rotation of the steering wheels (7). The bottom of the trolley body (1) is provided with a driven device (3) for removing sand and gravel adhering to the outer wall of the steering wheels (7). The control device (2) includes: a universal joint (21), a rotating rod (22), a support plate (23), a linkage bearing (24), a swing arm (25), a vertical rod (26), a moving plate (27), a control rod (28), a support frame (29), and a spring (210). The universal joint (21) and the rotating rod (22) are connected to the steering wheel (7) and, together with the support plate (23), connect the steering wheel (7) to the trolley body (1). The control rod (28) controls the movement of the moving plate (27) by abutting against it. The spring plate (210) provides elastic support for the control rod (28). The linkage bearing (24) supports the steering wheel (7) in conjunction with the swing arm (25). The vertical rod (26) moves with the moving plate (27) and controls the steering wheel (7) to swing by pulling the swing arm (25). The support plate (23) and the rotating rod (22) are provided with limiting devices (4).

2. The conveying device for plastic mold processing according to claim 1, characterized in that: The support plate (23) is fixed to the bottom of the trolley body (1), the rotating rod (22) passes through the support plate (23) and is rotatably connected to the support plate (23), and the rotating rod (22) is connected to the steering wheel (7) through the universal joint (21).

3. The conveying device for plastic mold processing according to claim 2, characterized in that: The linkage bearing (24) is located on the side of the steering wheel (7) near the support plate (23). A swing arm (25) is fixed on the outer wall of the linkage bearing (24). The vertical rod (26) passes through the swing arm (25) and is rotatably connected to the swing arm (25). The top of the vertical rod (26) is fixed to the bottom of the moving plate (27).

4. The conveying device for plastic mold processing according to claim 3, characterized in that: The movable plate (27) is slidably installed at the bottom of the trolley body (1), the support frame (29) is fixed at the bottom of the trolley body (1), the control rod (28) passes through the support frame (29) and is hinged to the support frame (29), and a spring piece (210) is fixed between the control rod (28) and the support frame (29).

5. The conveying device for plastic mold processing according to claim 1, characterized in that: The driven device (3) includes a rack plate (31), which is fixed on the side of the moving plate (27) away from the support plate (23). The rack plate (31) meshes with a gear (32). A connecting rod (33) is fixed to the bottom of the gear (32). An abutment block (34) is fixed to the outer wall of the connecting rod (33). A fixing rod (35) is fixed to the bottom of the trolley body (1).

6. The conveying device for plastic mold processing according to claim 5, characterized in that: The bottom of the fixed rod (35) is slidably connected to the slide plate (36). The top of the slide plate (36) is provided with a groove. A return spring (37) is fixed on the inner side of the groove. The end of the return spring (37) away from the inner wall of the groove is fixed to the fixed rod (35). The side of the slide plate (36) near the connecting rod (33) is provided with bristles (38). The side of the slide plate (36) near the bristles (38) is fixed with a mating block (39).

7. A conveying device for plastic mold processing according to claim 1, characterized in that: The limiting device (4) includes a placement platform (41), which is low in the middle and high on both sides. The placement platform (41) is fixed to the inner wall of the support plate (23). An iron ball (42) is placed on the top of the placement platform (41). A ratchet (43) and a rubber convex ball (44) are provided on the outer wall of the rotating rod (22).

8. A conveying device for plastic mold processing according to claim 7, characterized in that: A crossbar (45) is provided on the side of the support plate (23). The crossbar (45) passes through the side of the support plate (23) and is slidably connected to the support plate (23). A connecting spring (46) is fixed on the side of the support plate (23). The end of the connecting spring (46) away from the support plate (23) is fixed to the crossbar (45). A pressure plate (47) is fixed on the end of the crossbar (45) near the center of the support plate (23). There are two sets of the crossbar (45), the connecting spring (46) and the pressure plate (47), and the two sets of crossbar (45), the connecting spring (46) and the pressure plate (47) are symmetrically arranged.

9. A conveying device for plastic mold processing according to claim 8, characterized in that: A connecting rod (48) is fixed at one end of one set of crossbars (45) away from the center of the support plate (23). The connecting rod (48) passes through the support plate (23) and is slidably connected to the support plate (23). A pawl (49) is provided at one end of the connecting rod (48) away from the crossbar (45). A linkage rod (410) is fixed at one end of another set of crossbars (45) away from the center of the support plate (23). An arc rod (411) is fixed at one end of the linkage rod (410) away from the crossbar (45). A rubber deceleration ball (412) is fixed on the side of the arc rod (411) near the rotating rod (22).

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