Interlocking emergency stop device for transport line

Abstract

The invention discloses an interlocking emergency stop device for a transport line, and mainly relates to the technical field of transport lines. Comprising a supporting rod arranged on one conveying roller, a vertical plate is arranged on a bottom frame, an arc-shaped groove in sliding contact with the supporting rod is formed in the vertical plate, the circle center of the arc-shaped groove is located on the circle center of the adjacent second conveying roller, a sliding plate is slidably connected to the bottom frame, a push block is arranged on the sliding plate, and a transverse groove in sliding contact with the supporting rod is formed in the push block. A driven wheel is arranged at the end of the supporting rod, a limiting wheel is arranged on the vertical plate, a first limiting groove making contact with the driven wheel is formed in the limiting wheel, a protrusion is arranged on the driven wheel, a groove making contact with the protrusion is formed in the side face of the first limiting groove, a limiting rod is slidably connected to the push block, and a through hole allowing the limiting rod to penetrate through is formed in the vertical plate. The self-locking device has the beneficial effects that self-locking after the conveying line stops is achieved, the problem that the conveying line is started by mistake in the overhauling process is solved, potential safety hazards in the overhauling process of the conveying line are reduced, and safety in the overhauling process of the conveying line is improved.

Description

Technical Field

[0001] This invention relates to the technical field of transport lines, specifically to an interlocking emergency stop device for transport lines. Background Technology

[0002] In the irradiation processing production process, the irradiation workshop is the core operating area, and it is usually equipped with transport line equipment for material transfer. The stable operation of the transport line is the key to ensuring the continuity of irradiation production.

[0003] Because the irradiation devices inside the irradiation workshop pose a high radiation hazard, the existing control system for the transport lines in the irradiation workshop mostly adopts a single start-up control mode, that is, the start-up command is directly issued through an external operating panel or control terminal to control the start and stop of the transport lines inside the irradiation workshop.

[0004] However, when maintenance personnel stop the transport line due to mechanical failures, electrical anomalies, or other issues and enter the irradiation workshop for maintenance work, external personnel may restart the transport line through the external control terminal due to lack of awareness, operational errors, or failure to strictly follow safety operating procedures. Because the interior space of the irradiation workshop is relatively enclosed, maintenance personnel are focused on troubleshooting and repair during the operation and may find it difficult to quickly detect the start signal of the transport line. They are very likely to be caught or squeezed by the suddenly started transport line, causing mechanical injury and posing a significant safety hazard. Summary of the Invention

[0005] The purpose of this invention is to provide an interlocking emergency stop device for a transport line, which realizes self-locking after the transport line stops, solves the problem of accidental restart of the transport line during maintenance, reduces safety hazards during transport line maintenance, and improves the safety of transport line maintenance.

[0006] To achieve the above objectives, the invention employs the following technical solution: An interlocking emergency stop device for a transport line includes an emergency stop mechanism installed on the transport line. The transport line includes a base frame and a plurality of conveyor rollers rotatably mounted on the base frame. A drive motor is mounted on the base frame, and a sprocket is provided at the output end of the drive motor. The device also includes a first chain sleeved on the outside of the sprocket and one of the conveyor rollers, and a plurality of second chains sleeved on the outside of two adjacent conveyor rollers. One of the conveyor rollers is provided with a support rod rotatably connected to the base frame. A vertical plate is provided on the base frame, and an arc-shaped groove on the vertical plate is provided for sliding contact with the support rod. The center of the arc-shaped groove is located at the center of the adjacent second conveying roller. A sliding plate is slidably connected to the base frame. A push block is provided on the sliding plate. A horizontal groove is provided on the push block to slide in contact with the support rod. A driven wheel is provided at the end of the support rod. A limiting wheel is provided on the vertical plate. A first limiting groove is provided on the limiting wheel to contact the driven wheel. A number of protrusions are provided on the driven wheel. A number of grooves are provided on the side of the first limiting groove to contact the protrusions. A limiting rod is slidably connected to the push block. A through hole is provided on the vertical plate for the limiting rod to pass through.

[0007] Furthermore, the end of the limiting rod is symmetrically provided with a first limiting block, one side of the first limiting block is provided with a first inclined surface that contacts the vertical plate, a first spring is provided between the two first limiting blocks, and the vertical plate is provided with a fixing groove that contacts the other side of the first limiting block.

[0008] Furthermore, the vertical plate is symmetrically provided with release blocks, and the side of the release block is provided with an arc surface that contacts the end of the first limiting block, and the other side of the first limiting block contacts the push block.

[0009] Furthermore, the vertical plate is provided with a guide groove for the first limiting block to pass through, the guide groove is connected to the fixing groove, and one side of the guide groove is provided with a second inclined surface that contacts the first inclined surface.

[0010] Furthermore, the vertical plate is provided with a fixed ring that is slidably connected to the limiting rod, the limiting rod is provided with a protruding ring, a second spring is provided between the protruding ring and the fixed ring, the end of the limiting rod is in contact with the vertical plate, and a third spring is provided between the protruding ring and the vertical plate.

[0011] Furthermore, a second limiting block is slidably connected to the limiting rod, a third inclined surface is provided on one side of the second limiting block to contact the push block, a second limiting groove is provided on the push block to contact the other side of the second limiting block, and a fourth spring is provided between the second limiting block and the limiting rod.

[0012] Furthermore, the push block is provided with a sliding groove and a spiral groove that communicates with the sliding groove and the second limiting groove, and the second limiting block slides sequentially in the second limiting groove, the spiral groove and the sliding groove.

[0013] Furthermore, there are two push blocks, symmetrically arranged at both ends of the slide plate, which further improves the stability of the conveyor line braking. The base frame is equipped with a first cylinder, and the movable end of the first cylinder is connected to the slide plate.

[0014] Furthermore, it also includes a material frame set on the conveying roller, the bottom of the material frame having a frame in contact with the conveying roller, a limiting plate slidably connected to the base frame, the limiting plate having a plurality of limiting rollers in contact with the frame, and a second cylinder on the base frame, the movable end of the second cylinder being connected to the limiting plate.

[0015] Furthermore, the end of the support rod is provided with a plurality of first magnetic blocks, one side of the limiting wheel is provided with a first electromagnet that cooperates with the first magnetic blocks, the bottom of the frame is provided with a second magnetic block, and the base frame is provided with a second electromagnet that cooperates with the second magnetic blocks.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the transport line needs to be inspected, slide the slide plate on the base frame. The slide contact between the support rod and the horizontal groove on the push block drives the support rod to move on the vertical plate. This causes the first chain sleeved on the outside of one of the conveyor rollers and the sprocket to gradually loosen from tight. This causes the drive motor to stop driving one of the conveyor rollers to rotate. When the driven wheel at the end of the support rod moves into the first limiting groove on the limiting wheel, the groove on the first limiting groove contacts the protrusion on the driven wheel. The resulting resistance restricts the driven wheel from rotating relative to the limiting wheel, thereby restricting the rotation of one of the conveyor rollers and achieving a sudden stop for one of the conveyor rollers. 2. During the movement of the support rod, the arc groove slides into contact with the support rod, guiding the direction of the support rod's movement. At the same time, since the center of the arc groove is located at the center of the adjacent second conveyor roller, one of the conveyor rollers moves in a circular motion around the adjacent conveyor roller, ensuring that the second chain sleeved on the outer side of one of the conveyor rollers and the adjacent conveyor roller is always taut. This ensures that one of the conveyor rollers moves in the same state as the other conveyor rollers. When one of the conveyor rollers brakes suddenly, the other conveyor rollers also brake suddenly, achieving a sudden stop for the entire transport line, thereby maintaining the transport line in an emergency and preventing further losses. 3. When the transport line needs to be braked suddenly, the push block will be moved, causing the driven wheel on the support rod to move into the groove of the limiting wheel. Simultaneously, this will move the limiting rod to the through hole. Through the cooperation of the second spring, the limiting rod, the push block, the first limiting block, the guide groove, the first inclined surface, the second inclined surface, and the first spring, the limiting rod smoothly passes through the vertical plate. The cooperation between the first limiting block, the vertical plate, and the first spring ensures that the other side of the first limiting block contacts the vertical plate, preventing the limiting rod from sliding off the vertical plate. This prevents unintentional movement of the limiting rod by external force and releases the limitation rod's restriction on the push block's sliding on the base frame. This design prevents the self-locking mechanism from failing after the transport line stops, ensuring that the transport line does not operate during maintenance, thereby reducing safety hazards and improving safety during transport line maintenance. Furthermore, it eliminates the need for maintenance personnel to manually move the limit lever, preventing accidents caused by personnel forgetting to move it, further enhancing safety during transport line maintenance. Additionally, a third spring between the convex ring and the vertical plate prevents the first limit block from moving directly between the two release blocks, reducing the possibility of unintentionally releasing the transport line's self-locking mechanism and further improving safety during transport line maintenance. 4. After the conveyor line is repaired, the two first limit blocks are moved to both sides by the cooperation of the limit rod, the third spring, the first limit block, the fixing groove, the release block, and the arc surface until the two first limit blocks are completely retracted into the limit rod. Then the limit rod is pulled back so that the limit rod can pass smoothly through the vertical plate and slide out of the vertical plate, releasing the restriction of the push block sliding on the vertical plate. Subsequently, by driving the slide plate to slide on the base frame, one of the conveyor rollers can be reset until the first sprocket is in a taut state again, driving several conveyor rollers to rotate, realizing the normal conveying of materials. At the same time, there is no need to press the first limit block located on the inside by hand, thus simplifying the operation steps of releasing the restriction of the limit rod on the vertical plate, improving the efficiency of releasing the brake state of the conveyor line, and improving the efficiency of the conveyor line repair. Furthermore, during the retraction of the limit rod, the cooperation between the second limit block, the third inclined surface, and the push block allows the second limit block to retract into the limit rod, enabling the limit rod to retract smoothly until the first limit block slides out of the vertical plate. At this point, the second limit block moves into the second limit groove. The rebound force generated by the compression of the fourth spring causes the second limit block to slide out of the limit rod and into the second limit groove. The resistance generated by the contact between the second limit block and the second limit groove, combined with the rebound force generated by the compression of the third spring, restricts the limit rod from sliding within the push block. This eliminates the need for maintenance personnel to constantly retract the limit rod with both hands when releasing the conveyor line brake, further ensuring the safety of maintenance personnel during the maintenance process. 5. After the conveyor line is released from braking, by pulling back and rotating the limit rod, the second limit block on the limit rod enters the spiral groove from the second limit groove. The spiral groove contacts the second limit groove, causing the limit rod to rotate on the vertical plate until the first limit block aligns with the guide groove again. At this time, the second limit block also slides from the spiral groove into the slide groove, thereby achieving self-locking after the conveyor line is braked again, further ensuring the safety of maintenance personnel during the maintenance process. 6. When the conveyor line needs to be stopped for maintenance, the second cylinder drives the limit plate to slide on the base frame, so that the limit roller on the limit plate contacts the frame at the bottom of the material box. The resistance generated after contact restricts the material box from sliding further on the conveyor roller, thus preventing the material box and material from continuing to slide on the conveyor line under the action of inertia when the conveyor line brakes suddenly, causing the material to collide with each other or fall off the conveyor line, thereby reducing unnecessary losses after the conveyor line brakes suddenly. 7. By energizing the first and second electromagnets, they generate magnetic force, attracting several first and second electromagnets and magnetic blocks on the support rod and frame, respectively. The resistance generated by the attraction initially reduces the rotational speed of one of the conveyor rollers on the base frame and the moving speed of the frame on the base frame, thereby reducing the operating speed of the conveyor line. This prevents the conveyor line from suddenly braking while running at high speed, which could cause materials on the conveyor line to slip off and cause unnecessary losses. It also prevents strong collisions between the driven wheel and the limit wheel, as well as between the frame and the limit roller, thereby extending the service life of the limit roller and the limit wheel and reducing the cost of maintaining the emergency stop device. Attached Figure Description

[0017] Appendix Figure 1 This is an isometric schematic diagram of the present invention.

[0018] Appendix Figure 2 This is a schematic diagram of the structure of the conveyor roller of the present invention.

[0019] Appendix Figure 3 This is a schematic diagram of the sprocket structure of the present invention.

[0020] Appendix Figure 4 This is a schematic diagram of the limiting wheel of the present invention.

[0021] Appendix Figure 5 This is a schematic diagram of the limiting rod of the present invention.

[0022] Appendix Figure 6 This is a schematic diagram of the structure of the first limiting block of the present invention.

[0023] Appendix Figure 7 This is an appendix to the present invention. Figure 6 A magnified view of part A in the middle.

[0024] Appendix Figure 8This is a schematic diagram of the pusher block of the present invention.

[0025] Appendix Figure 9 This is a schematic diagram of the framework of the present invention.

[0026] The labels shown in the attached diagram: 1. Base frame; 2. Conveyor roller; 3. Drive motor; 4. Sprocket; 5. First chain; 6. Second chain; 7. Support rod; 8. Vertical plate; 9. Arc groove; 10. Slide plate; 11. Push block; 12. Horizontal groove; 13. Driven wheel; 14. Limiting wheel; 15. First limiting groove; 16. Protrusion; 17. Groove; 18. Limiting rod; 19. Through hole; 20. First limiting block; 21. First inclined surface; 22. First spring; 23. Fixing groove; 24. Release block; 25. Arc surface; 26. Guide groove; 27. Second inclined surface; 28. Fixing ring; 29. ​​Protruding ring; 30. Second spring; 31. Third spring; 32. Second limiting block; 33. Third inclined surface; 34. Second limiting groove; 35. Fourth spring; 36. Sliding groove; 37. Spiral groove; 38. First cylinder; 39. Material box; 40. Frame; 41. Limiting plate; 42. Limiting roller; 43. Second cylinder; 44. First magnetic block; 45. First electromagnet; 46. Second magnetic block; 47. Second electromagnet. Detailed Implementation

[0027] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0028] This invention provides an interlocking emergency stop device for a transport line, such as... Figures 1-6 As shown, the conveyor includes an emergency stop mechanism installed on the conveyor line. The conveyor line includes a base frame 1 and several conveying rollers 2 rotatably mounted on the base frame 1. The base frame 1 is equipped with a drive motor 3, and the output end of the drive motor 3 is equipped with a sprocket 4. The conveyor line also includes a first chain 5 sleeved on the outside of the sprocket 4 and one of the conveying rollers 2, and several second chains 6 sleeved on the outside of two adjacent conveying rollers 2. The drive motor 3 drives the sprocket 4 to rotate, and the first chain 5 and the second chain 6 transmit torque to drive the conveying rollers 2 to rotate on the base frame 1, thereby realizing the movement of materials on the conveyor line. One of the conveying rollers 2 is provided with a support rod 7 rotatably connected to the base frame 1. The base frame 1 is provided with a vertical plate 8. The vertical plate 8 is provided with an arc-shaped groove 9 that slides in contact with the support rod 7. The center of the arc-shaped groove 9 is located at the center of the adjacent second conveying roller 2. A sliding plate 10 is slidably connected to the base frame 1. A push block 11 is provided on the sliding plate 10. The push block 11 is provided with a horizontal groove 12 that slides in contact with the support rod 7. The end of the support rod 7 is provided with a driven wheel 13. The vertical plate 8 is provided with a limiting wheel 14. The limiting wheel 14 is provided with a first limiting groove 15 that contacts the driven wheel 13. The driven wheel 13 is provided with several protrusions 16. The side of the first limiting groove 15 is provided with several grooves 17 that contact the protrusions 16. A limiting rod 18 is slidably connected to the push block 11. The vertical plate 8 is provided with a through hole 19 for the limiting rod 18 to pass through. When the transport line needs maintenance, the sliding plate 10 is slidable on the base frame 1. The horizontal groove 12 on the push block 11 slides into contact with the support rod 7, causing the support rod 7 to move on the vertical plate 8. This causes the first chain 5, which is fitted onto the outer side of one of the conveyor rollers 2 and the sprocket 4, to gradually loosen from tension. This prevents the drive motor 3 from rotating one of the conveyor rollers 2. When the driven wheel 13 at the end of the support rod 7 moves into the first limiting groove 15 on the limiting wheel 14, the groove 17 on the first limiting groove 15 contacts the protrusion 16 on the driven wheel 13. The resulting resistance restricts the driven wheel 13 from rotating relative to the limiting wheel 14, thereby restricting the rotation of one of the conveyor rollers 2 and achieving the desired rotation. The roller 2 brakes suddenly. In addition, during the process of pushing the support rod 7 to move, the arc groove 9 slides in contact with the support rod 7, which guides the direction of movement of the support rod 7. At the same time, since the center of the arc groove 9 is located on the center of the adjacent second conveyor roller 2, one of the conveyor rollers 2 makes a circular motion around the adjacent conveyor roller 2, ensuring that the second chain 6 sleeved on the outside of one of the conveyor rollers 2 and the adjacent conveyor roller 2 is always in a taut state, so that one of the conveyor rollers 2 and the other conveyor rollers 2 are in the same motion state. When one of the conveyor rollers 2 brakes suddenly, the other conveyor rollers 2 follow suit and brake suddenly, realizing the emergency braking of the entire transport line, thereby maintaining the transport line in an emergency and preventing further losses. In addition, when the entire transport line stops for maintenance, the limiting rod 18 is slid on the push block 11, so that the limiting rod 18 enters the through hole 19 provided in the vertical plate 8. The resistance generated by the contact between the two will restrict the sliding plate 10 from sliding on the base frame 1, realizing self-locking after the transport line stops. If the emergency stop switch is accidentally pressed by external personnel, the resistance generated by the self-locking will prevent the sliding plate 10 from resetting, preventing the sprocket 4 from reconnecting with one of the conveyor rollers 2 during the maintenance process. This ensures that the transport line does not operate during the maintenance process, thereby reducing safety hazards during the maintenance of the transport line and improving the safety of the maintenance process.

[0029] Preferred, such as Figure 5 and Figure 6 As shown, the end of the limiting rod 18 is symmetrically provided with a first limiting block 20. One side of the first limiting block 20 is provided with a first inclined surface 21 that contacts the vertical plate 8. A first spring 22 is provided between the two first limiting blocks 20. The vertical plate 8 is provided with a fixing groove 23 that contacts the other side of the first limiting block 20. When the transport line is stopped, by sliding the limiting rod 18 on the push block 11, the first limiting block 20 at the end of the limiting rod 18 contacts the vertical plate 8, and the first inclined surface 21 on one side of the first limiting block 20 contacts the vertical plate 8. The resulting component force causes the first limiting block 20 to move on the limiting rod 18, compressing the first limiting block 20 located between the two first limiting blocks 20. A spring 22 is used until the two first limit blocks 20 retract into the limit rod 18, allowing the limit rod 18 to pass smoothly through the vertical plate 8. After the first limit block 20 passes through the vertical plate 8, under the action of the rebound force of the first spring 22, the two first limit blocks 20 are driven to reset. The other side of the first limit block 20 contacts the vertical plate 8, restricting the limit rod 18 to slide out of the vertical plate 8. This avoids the limit rod 18 from being moved unintentionally by external force, releases the restriction of the limit rod 18 on the sliding of the push block 11 on the base frame 1, and causes the self-locking failure after the transport line stops, further ensuring that the transport line will not operate during the maintenance process, thereby reducing the safety hazards during the maintenance of the transport line and improving the safety during the maintenance of the transport line.

[0030] Preferred, such as Figure 5 and Figure 6As shown, the vertical plate 8 is symmetrically provided with release blocks 24. The side of the release block 24 is provided with an arc surface 25 that contacts the end of the first limiting block 20. The other side of the first limiting block 20 contacts the push block 11. After maintenance is completed, by further pressing the limiting rod 18, the first limiting block 20 slides out of the fixing groove 23 and moves between the two release blocks 24. Then, by rotating the limiting rod 18, the first limiting block 20 contacts the arc surface 25 on the side of the release block 24. The resulting force drives the two first limiting blocks 20 to move to both sides until the two first limiting blocks 20 are completely retracted into the limiting rod 18. Then, the limiting rod 18 is pulled back so that the limiting rod 18 passes smoothly through the vertical plate 8. The push block 11 slides out, releasing the restriction on the sliding of the push block 11 on the vertical plate 8. Subsequently, by driving the slide plate 10 to slide on the base frame 1, one of the conveying rollers 2 can be reset until the first sprocket 4 is in a taut state again, driving several conveying rollers 2 to rotate, realizing the normal conveying of materials. At the same time, there is no need to press the first limiting block 20 located on the inside by hand, thereby simplifying the operation steps of releasing the restriction of the limiting rod 18 on the vertical plate 8, improving the efficiency of releasing the brake state of the conveyor line, and improving the efficiency of the maintenance conveyor line. In addition, by contacting the push block 11 on the other side of the first limiting block 20, the limiting rod 18 is slid out of the push block 11, avoiding the loss of the limiting rod 18, which would affect the subsequent normal maintenance, and further improving the efficiency of the maintenance conveyor line.

[0031] Preferred, such as Figure 5 and Figure 6 As shown, the vertical plate 8 is provided with a guide groove 26 for the first limiting block 20 to pass through. The guide groove 26 is connected to the fixed groove 23. One side of the guide groove 26 is provided with a second inclined surface 27 that contacts the first inclined surface 21. Through the guidance of the guide groove 26, the first limiting block 20 can smoothly enter the fixed groove 23, improve the efficiency of locking the push block 11, and thus improve the efficiency of the maintenance and transportation line.

[0032] Preferred, such as Figure 5 and Figure 6As shown, the vertical plate 8 is provided with a fixed ring 28 that is slidably connected to the limiting rod 18. The limiting rod 18 is provided with a protruding ring 29. A second spring 30 is provided between the protruding ring 29 and the fixed ring 28. The end of the limiting rod 18 is in contact with the vertical plate 8. A third spring 31 is provided between the protruding ring 29 and the vertical plate 8. When the transport line is operating normally, the second spring 30 is in a compressed state. At the same time, the rebound force generated by the compression of the second spring 30 is applied to the limiting rod 18 through the protruding ring 29, so that the end of the limiting rod 18 is in contact with the vertical plate 8. When it is necessary to brake the transport line suddenly, the moving push block 11 is moved, so that the driven wheel 13 on the support rod 7 moves into the groove 17 provided by the limiting wheel 14, and at the same time drives the limiting rod 18 to move to the through hole 19. The rebound force generated by the compression of the second spring 30 will further drive the limiting rod 18. The push block 11 moves until the first limiting block 20 on the limiting rod 18 enters the fixing groove 23 through the vertical plate 8, restricting the movement of the push block 11 relative to the vertical plate 8, thus achieving self-locking of the transport line brake. This eliminates the need for maintenance personnel to manually move the limiting rod 18, preventing safety hazards caused by maintenance personnel forgetting to do so, and further improving the safety of the transport line maintenance process. In addition, the third spring 31 between the convex ring 29 and the vertical plate 8 can prevent the first limiting block 20 from moving directly between the two release blocks 24, thereby reducing the possibility of unintentionally releasing the transport line self-locking and further improving the safety of the transport line maintenance process. Subsequently, by further pressing the limiting rod 18, the third spring 31 can be compressed, causing the first limiting block 20 to move between the two release blocks 24, facilitating the release of the limitation of the limiting rod 18 and improving the efficiency of the transport line maintenance.

[0033] Preferred, such as Figure 7 and Figure 8 As shown, a second limiting block 32 is slidably connected to the limiting rod 18. One side of the second limiting block 32 has a third inclined surface 33 that contacts the push block 11. The push block 11 has a second limiting groove 34 that contacts the other side of the second limiting block 32. A fourth spring 35 is provided between the second limiting block 32 and the limiting rod 18. After maintenance, by retracting the limiting rod 18, the third inclined surface 33 on the second limiting block 32 contacts the push block 11. The resulting force causes the second limiting block 32 to retract into the limiting rod 18, allowing the limiting rod 18 to smoothly retract until the first... The limiting block 20 slides out from the vertical plate 8. At this time, the second limiting block 32 moves into the second limiting groove 34. The rebound force generated by the compression of the fourth spring 35 causes the second limiting block 32 to slide out from the limiting rod 18 and enter the second limiting groove 34. The resistance generated by the contact between the second limiting block 32 and the second limiting groove 34, combined with the rebound force generated by the compression of the third spring 31, restricts the limiting rod 18 from sliding in the push block 11. This means that when the conveyor line brake is released, the maintenance personnel do not need to use both hands to constantly push back the limiting rod 18, further ensuring the safety of the maintenance personnel during the maintenance process.

[0034] Preferred, such as Figure 7 and Figure 8 As shown, the push block 11 is provided with a sliding groove 36 and a spiral groove 37 connected to the sliding groove 36 and the second limiting groove 34. The second limiting block 32 slides sequentially in the second limiting groove 34, the spiral groove 37 and the sliding groove 36. When the conveyor line brake is released, by pulling back and rotating the limiting rod 18, the second limiting block 32 provided on the limiting rod 18 enters the spiral groove 37 from the second limiting groove 34. Through the contact between the spiral groove 37 and the second limiting groove 34, the limiting rod 18 is driven to rotate on the vertical plate 8 until the first limiting block 20 corresponds to the guide groove 26 again. At this time, the second limiting block 32 also slides from the spiral groove 37 into the sliding groove 36, thereby realizing self-locking after the conveyor line is braked again, further ensuring the safety of maintenance personnel during the maintenance process.

[0035] Preferred, such as Figure 2 and Figure 3 As shown, there are two push blocks 11, which are symmetrically arranged at both ends of the slide plate 10 to further improve the stability of the conveyor line braking. The base frame 1 is equipped with a first cylinder 38. The movable end of the first cylinder 38 is connected to the slide plate 10. The first cylinder 38 drives the slide plate 10 to move, which improves the power for the conveyor line braking and restoration. Specifically, the first cylinder 38 is electrically connected to the outside and the emergency brake button on the base frame 1. The emergency brake button controls the start and stop of the first cylinder 38, and the start and stop of the conveyor line can be controlled remotely and locally.

[0036] Preferred, such as Figure 9 As shown, it also includes a material frame 39 disposed on the conveyor roller 2. The bottom of the material frame 39 is provided with a frame 40 that contacts the conveyor roller 2. A limit plate 41 is slidably connected to the base frame 1. The limit plate 41 is provided with a plurality of limit rollers 42 that contact the frame 40. The base frame 1 is provided with a second cylinder 43. The movable end of the second cylinder 43 is connected to the limit plate 41. When the transport line needs to be stopped for maintenance, the second cylinder 43 drives the limit plate 41 to slide on the base frame 1, so that the limit rollers 42 provided on the limit plate 41 contact the frame 40 provided at the bottom of the material frame 39. The resistance generated after contact restricts the material frame 39 from sliding further on the conveyor roller 2, so as to avoid the material frame 39 and the material continuing to slide on the transport line under the action of inertia when the transport line brakes suddenly, causing the material to collide with each other or fall off the transport line, thereby reducing unnecessary losses after the transport line brakes suddenly.

[0037] Preferred, such as Figure 4 , Figure 5 and Figure 9As shown, the end of the support rod 7 is provided with several first magnetic blocks 44, one side of the limiting wheel 14 is provided with a first electromagnet 45 that cooperates with the first magnetic blocks 44, the bottom of the frame 40 is provided with a second magnetic block 46, and the base frame 1 is provided with a second electromagnet 47 that cooperates with the second magnetic block 46. When the transport line needs to be braked suddenly, the first electromagnet 45 and the second electromagnet 47 are energized respectively. The first electromagnet 45 and the second electromagnet 47 generate magnetic force, which attracts the several first electromagnets 45 and the second electromagnet 46 on the support rod 7 and the frame 40 respectively. The two magnetic blocks 46, through the resistance generated by attraction, initially reduce the rotational speed of one of the conveyor rollers 2 on the base frame 1 and the moving speed of the frame 40 on the base frame 1, thereby reducing the operating speed of the conveyor line and preventing the conveyor line from suddenly braking while in a high-speed operating state, which would cause the material on the conveyor line to slip off the conveyor line and cause unnecessary losses; at the same time, it also prevents the driven wheel 13 from colliding violently with the limit wheel 14, and the frame 40 from colliding violently with the limit roller 42, thereby extending the service life of the limit roller 42 and the limit wheel 14 and reducing the cost required to maintain the emergency stop device.

[0038] Example 1 This invention provides an interlocking emergency stop device for a transport line, such as... Figures 1-6 As shown, when the transport line needs maintenance, the sliding plate 10 slides on the base frame 1, and the support rod 7 slides through the horizontal groove 12 on the push block 11, causing the support rod 7 to move on the vertical plate 8. This causes one of the conveyor rollers 2 and the first chain 5 sleeved on the outside of the sprocket 4 to gradually loosen from tension, so that the drive motor 3 no longer drives one of the conveyor rollers 2 to rotate. When the driven wheel 13 at the end of the support rod 7 moves into the first limiting groove 15 on the limiting wheel 14, the groove 17 on the first limiting groove 15 contacts the protrusion 16 on the driven wheel 13, and the resulting resistance restricts the driven wheel 13 from rotating relative to the limiting wheel 14, thereby restricting the rotation of one of the conveyor rollers 2, thus achieving the goal of one conveyor roller 2 rotating. Emergency braking of conveyor roller 2; In addition, during the process of pushing support rod 7 to move, the arc groove 9 slides in contact with support rod 7, which guides the direction of movement of support rod 7. At the same time, since the center of the arc groove 9 is located on the center of the adjacent second conveyor roller 2, one of the conveyor rollers 2 makes a circular motion around the adjacent conveyor roller 2, ensuring that the second chain 6 sleeved on the outside of one of the conveyor rollers 2 and the adjacent conveyor roller 2 is always in a taut state, so that one of the conveyor rollers 2 and the other conveyor rollers 2 are in the same motion state. When one of the conveyor rollers 2 brakes suddenly, the other conveyor rollers 2 follow suit and brake suddenly, realizing the emergency braking of the entire transport line, thereby maintaining the transport line in an emergency and preventing further losses. In addition, when the entire transport line stops for maintenance, the limiting rod 18 is slid on the push block 11, so that the limiting rod 18 enters the through hole 19 provided in the vertical plate 8. The resistance generated by the contact between the two will restrict the sliding plate 10 from sliding on the base frame 1, realizing self-locking after the transport line stops. If the emergency stop switch is accidentally pressed by external personnel, the resistance generated by the self-locking will prevent the sliding plate 10 from resetting, preventing the sprocket 4 from reconnecting with one of the conveyor rollers 2 during the maintenance process. This ensures that the transport line does not operate during the maintenance process, thereby reducing safety hazards during the maintenance of the transport line and improving the safety of the maintenance process.

[0039] Example 2 Based on Example 1, such as Figures 5-8 As shown, when the transport line is operating normally, the second spring 30 is in a compressed state. At the same time, the rebound force generated by the compression of the second spring 30 is applied to the limiting rod 18 through the convex ring 29, so that the end of the limiting rod 18 contacts the vertical plate 8. When the transport line needs to be braked suddenly, the push block 11 is moved, causing the driven wheel 13 on the support rod 7 to move into the groove 17 of the limiting wheel 14. At the same time, the limiting rod 18 is moved to the through hole 19. The rebound force generated by the compression of the second spring 30 will further drive the limiting rod 18 to move on the push block 11, so that the first limiting block 20 enters the guide groove 26. The first inclined surface 21 on the first limiting block 20 comes into contact with the second inclined surface 27 of the guide groove 26. The resulting force causes the first limiting block 20 to move on the limiting rod 18, compressing the first spring 22 between the two first limiting blocks 20, until the two first limiting blocks 20 retract into the limiting rod 18, allowing the limiting rod 18 to pass smoothly through the vertical plate 8. After the first limiting block 20 passes through the vertical plate 8, the rebound force of the first spring 22 will drive the two first limiting blocks 20 to move back into the limiting rod 18. The first limiting block 20 is reset, and the other side of the first limiting block 20 contacts the vertical plate 8, causing the limiting rod 18 to slide out of the vertical plate 8. This prevents the limiting rod 18 from being moved unintentionally by external force, releases the limitation of the limiting rod 18 on the sliding of the push block 11 on the base frame 1, and causes the self-locking after the transport line stops to fail. This further ensures that the transport line will not operate during maintenance, thereby reducing safety hazards during the maintenance of the transport line and improving the safety of the maintenance process. In addition, maintenance personnel do not need to manually move the limiting rod 18, avoiding safety hazards caused by maintenance personnel forgetting to move it, and further improving the safety of the maintenance process of the transport line. At the same time, the third spring 31 between the convex ring 29 and the vertical plate 8 can prevent the first limiting block 20 from moving directly between the two release blocks 24, thereby reducing the possibility of unintentionally releasing the self-locking of the transport line and further improving the safety of the maintenance process of the transport line. After the transport line is repaired, by further pressing the limiting rod 18, the third spring 31 is compressed, causing the first limiting block 20 to slide out of the fixing groove 23 and move between the two release blocks 24. Then, by rotating the limiting rod 18, the first limiting block 20 comes into contact with the arc surface 25 on the side of the release block 24. The resulting force drives the two first limiting blocks 20 to move to both sides until both first limiting blocks 20 are completely retracted into the limiting rod 18. Then, the limiting rod 18 is pulled back, allowing it to pass smoothly through the vertical... Plate 8 slides out from vertical plate 8, releasing the restriction of push block 11 sliding on vertical plate 8. Subsequently, by driving slide plate 10 to slide on base frame 1, one of the conveying rollers 2 can be reset until the first sprocket 4 is in a taut state again, driving several conveying rollers 2 to rotate, realizing normal material conveying. At the same time, there is no need to press the first limit block 20 located on the inside by hand, thereby simplifying the operation steps of releasing the restriction of limit rod 18 on vertical plate 8, improving the efficiency of releasing the brake state of the transport line, and improving the efficiency of maintenance of the transport line. Furthermore, during the retraction of the limit rod 18, the third inclined surface 33 on the second limit block 32 contacts the push block 11, and the resulting force causes the second limit block 32 to retract into the limit rod 18, allowing the limit rod 18 to retract smoothly until the first limit block 20 slides out of the vertical plate 8. At this time, the second limit block 32 moves into the second limit groove 34. The rebound force generated by the compression of the fourth spring 35 causes the second limit block 32 to slide out from the limit rod 18 and enter the second limit groove 34. The resistance generated by the contact between the second limit block 32 and the second limit groove 34, combined with the rebound force generated by the compression of the third spring 31, restricts the limit rod 18 from sliding within the push block 11. This means that when the conveyor line brake is released, maintenance personnel do not need to use both hands to continuously retract the limit rod 18, further ensuring the safety of maintenance personnel during the maintenance process. After the conveyor line is released from braking, by pulling back and rotating the limiting rod 18, the second limiting block 32 on the limiting rod 18 enters the spiral groove 37 from the second limiting groove 34. The spiral groove 37 contacts the second limiting groove 34, causing the limiting rod 18 to rotate on the vertical plate 8 until the first limiting block 20 corresponds to the guide groove 26 again. At this time, the second limiting block 32 also slides from the spiral groove 37 into the slide groove 36, thereby realizing self-locking after the conveyor line is braked again, further ensuring the safety of maintenance personnel during the maintenance process.

[0040] Example 3 Based on Example 1, such as Figure 4 , Figure 5 and Figure 9As shown, when the conveyor line needs to be stopped for maintenance, the second cylinder 43 drives the limiting plate 41 to slide on the base frame 1, so that the limiting roller 42 on the limiting plate 41 contacts the frame 40 at the bottom of the material frame 39. The resistance generated after contact restricts the material frame 39 from sliding further on the conveyor roller 2, preventing the material frame 39 and the material from continuing to slide on the conveyor line under the action of inertia when the conveyor line brakes suddenly, causing the material to collide with each other or fall off the conveyor line, thereby reducing unnecessary losses after the conveyor line brakes suddenly; in addition, by energizing the first electromagnet 45 and the second electromagnet 47, the first electromagnet 45 and the second electromagnet 47 generate magnetic fields. The force attracts several first electromagnets 45 and second magnetic blocks 46 mounted on the support rod 7 and frame 40 respectively. The resistance generated by the attraction initially reduces the rotational speed of one of the conveyor rollers 2 on the base frame 1 and the moving speed of the frame 40 on the base frame 1, thereby reducing the operating speed of the conveyor line and preventing the conveyor line from suddenly braking while in a high-speed operating state, which would cause the material on the conveyor line to slip off the conveyor line and cause unnecessary losses. At the same time, it also prevents the driven wheel 13 from colliding strongly with the limit wheel 14 and the frame 40 from colliding strongly with the limit roller 42, thereby extending the service life of the limit roller 42 and the limit wheel 14 and reducing the cost required to maintain the emergency stop device.

Claims

1. An interlocking emergency stop device for a transport line, comprising an emergency stop mechanism installed on the transport line, the transport line comprising a base frame (1) and a plurality of conveying rollers (2) rotatably mounted on the base frame (1), a drive motor (3) mounted on the base frame (1), a sprocket (4) provided at the output end of the drive motor (3), and further comprising a first chain (5) sleeved on the outside of the sprocket (4) and one of the conveying rollers (2), and a plurality of second chains (6) sleeved on the outside of two adjacent conveying rollers (2), characterized in that: One of the conveying rollers (2) is provided with a support rod (7) rotatably connected to the base frame (1). The base frame (1) is provided with a vertical plate (8). The vertical plate (8) is provided with an arc-shaped groove (9) that slides in contact with the support rod (7). The center of the arc-shaped groove (9) is located at the center of the adjacent second conveying roller (2). A sliding plate (10) is slidably connected to the base frame (1). A pusher block (11) is provided on the sliding plate (10). The pusher block (11) is provided with a transverse groove (12) that slides in contact with the support rod (7). The support rod (7) The end of the vertical plate (8) is provided with a driven wheel (13), and a limiting wheel (14) is provided on the vertical plate (8). The limiting wheel (14) is provided with a first limiting groove (15) that contacts the driven wheel (13). The driven wheel (13) is provided with a number of protrusions (16). The side of the first limiting groove (15) is provided with a number of grooves (17) that contact the protrusions (16). The push block (11) is slidably connected with a limiting rod (18). The vertical plate (8) is provided with a through hole (19) through which the limiting rod (18) passes.

2. The interlocking emergency stop device for a transport line according to claim 1, characterized in that: The end of the limiting rod (18) is symmetrically provided with a first limiting block (20). One side of the first limiting block (20) is provided with a first inclined surface (21) that contacts the vertical plate (8). A first spring (22) is provided between the two first limiting blocks (20). The vertical plate (8) is provided with a fixing groove (23) that contacts the other side of the first limiting block (20).

3. The interlocking emergency stop device for a transport line according to claim 2, characterized in that: The vertical plate (8) is symmetrically provided with release blocks (24), and the side of the release block (24) is provided with an arc surface (25) that contacts the end of the first limiting block (20). The other side of the first limiting block (20) contacts the push block (11).

4. The interlocking emergency stop device for a transport line according to claim 2, characterized in that: The vertical plate (8) is provided with a guide groove (26) through which the first limiting block (20) passes. The guide groove (26) is connected to the fixing groove (23). One side of the guide groove (26) is provided with a second inclined surface (27) that contacts the first inclined surface (21).

5. The interlocking emergency stop device for a transport line according to claim 1, characterized in that: The vertical plate (8) is provided with a fixed ring (28) that is slidably connected to the limiting rod (18). The limiting rod (18) is provided with a protruding ring (29). A second spring (30) is provided between the protruding ring (29) and the fixed ring (28). The end of the limiting rod (18) is in contact with the vertical plate (8). A third spring (31) is provided between the protruding ring (29) and the vertical plate (8).

6. The interlocking emergency stop device for a transport line according to claim 1, characterized in that: A second limiting block (32) is slidably connected to the limiting rod (18). A third inclined surface (33) is provided on one side of the second limiting block (32) that contacts the push block (11). A second limiting groove (34) is provided on the push block (11) that contacts the other side of the second limiting block (32). A fourth spring (35) is provided between the second limiting block (32) and the limiting rod (18).

7. The interlocking emergency stop device for a transport line according to claim 6, characterized in that: The push block (11) is provided with a sliding groove (36) and a spiral groove (37) connected to the sliding groove (36) and the second limiting groove (34). The second limiting block (32) slides in the second limiting groove (34), the spiral groove (37) and the sliding groove (36) in sequence.

8. The interlocking emergency stop device for a transport line according to claim 1, characterized in that: There are two push blocks (11), which are symmetrically arranged at both ends of the slide plate (10). The base frame (1) is provided with a first cylinder (38), and the movable end of the first cylinder (38) is connected to the slide plate (10).

9. The interlocking emergency stop device for a transport line according to claim 1, characterized in that: It also includes a material frame (39) set on the conveying roller (2), the bottom of the material frame (39) is provided with a frame (40) in contact with the conveying roller (2), a limiting plate (41) is slidably connected on the base frame (1), the limiting plate (41) is provided with a plurality of limiting rollers (42) in contact with the frame (40), and a second cylinder (43) is provided on the base frame (1), the movable end of the second cylinder (43) is connected to the limiting plate (41).

10. The interlocking emergency stop device for a transport line according to claim 1, characterized in that: The end of the support rod (7) is provided with a plurality of first magnetic blocks (44), the side of the limiting wheel (14) is provided with a first electromagnet (45) that works with the first magnetic blocks (44), the bottom of the frame (40) is provided with a second magnetic block (46), and the base frame (1) is provided with a second electromagnet (47) that works with the second magnetic block (46).

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