Safety stopper for automatic pipe cutting and loading machine

Abstract

The utility model relates to the technical field of pipe cutting feeding, specifically relates to safety stopper for pipe cutting automatic feeding machine, including frame, the frame top longitudinal fixed with a plurality of end plate, the frame rear side is fixed with storage assembly, the fixed feeding assembly that has on the end plate, the fixed safety limit component on the storage assembly, the fixed mechanical limit component on the feeding assembly, the utility model has the advantage that: add mechanical limit structure, adopt double limit mode, limit the stroke range of equipment feeding, guarantee the feeding safety, simple structure, high reliability, prevent the equipment from causing the safety accident because of excessive operation from the mechanical level, and even under the condition that the electrical system fails, still can play the safety protection function.

Description

Technical Field

[0001] This utility model relates to the field of pipe cutting and feeding technology, specifically to a safety limiter for an automatic pipe cutting and feeding machine. Background Technology

[0002] In the process of laser cutting of pipes, automatic pipe feeding machines are usually used to achieve the function of automatic pipe feeding. Although conventional automatic pipe feeding machines can achieve automatic feeding and limit the travel range of the moving parts of the equipment through safety limiters to prevent exceeding the safety range, there are still safety hazards with only a single limit structure. For example, if the electrical system fails, the safety limiter may malfunction, and further improvements are needed.

[0003] Therefore, it is necessary to invent a safety limiter for an automatic pipe cutting and feeding machine. Utility Model Content

[0004] Therefore, this utility model provides a safety limiter for an automatic pipe cutting and feeding machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety limiter for an automatic pipe cutting and feeding machine, comprising a frame, a plurality of end plates being longitudinally fixed on the top of the frame, a material storage assembly being fixed on the rear side of the frame, a feeding assembly being fixed on the end plates, a safety limiter being fixed on the material storage assembly, and a mechanical limiter being fixed on the feeding assembly. The mechanical limiting assembly includes a mounting box fixed to the side of the end plate. A movable base is fixed inside the mounting box, and a bearing seat is fixed to the top of the movable base. A lead screw is rotatably mounted on the bearing seat, and a coupling is fixed to the end of the lead screw. A threaded sleeve is threaded onto the surface of the lead screw. A strip-shaped hole is laterally opened on the top of the movable base, and a limiting slider is fixed to the bottom of the threaded sleeve. The limiting slider slides laterally within the strip-shaped hole. Limit switches are fixed to both sides of the bottom of the movable base, and the limit switches and the limiting slider are located on the same vertical plane.

[0006] Preferably, the storage assembly includes several vertically arranged storage racks, all of which are fixed to the rear end of the frame. Each storage rack has a connecting plate fixed to its top side, and a feeding belt is fixed to the connecting plate.

[0007] Preferably, the feeding assembly includes a geared motor, the bottom of which is fixed to the bottom of the frame. A transmission sprocket is fixed to the output shaft of the geared motor. A rotating shaft is rotatably installed between the rear sides of two adjacent end plates. A driven sprocket is fixed to the surface of the rotating shaft. The transmission sprocket and the driven sprocket are connected by a transmission chain. The end of the rotating shaft is fixedly connected to a coupling.

[0008] Preferably, a plurality of take-up drums are fixed on the surface of the rotating shaft, and the front ends of the plurality of feeding belts are respectively fixed on the plurality of take-up drums.

[0009] Preferably, a traction shaft is rotatably mounted at the rear end between two adjacent end plates, and a plurality of traction rollers are fixed on the surface of the traction shaft, with the surfaces of the plurality of feeding belts in contact with the surfaces of the plurality of traction rollers.

[0010] Preferably, the safety limiting component includes a fixing plate, which is fixed to the bottom of the side end of the storage rack, and a rotating rod is rotatably mounted at the center of the fixing plate.

[0011] Preferably, a rotating plate is fixed to the end of the rotating rod, a tension sensor is fixed to the surface of the rotating plate, a pull rope is fixed to the top of the tension sensor, and the top of the pull rope is fixed to the surface of the feeding belt.

[0012] The beneficial effects of this utility model are: by using the frame, end plate, storage component, feeding component, safety limit component and mechanical limit component together, and adding a mechanical limit structure, the double limit method limits the travel range of the equipment to ensure feeding safety. The structure is simple and highly reliable. It prevents safety accidents caused by excessive operation of the equipment from a mechanical point of view. Moreover, it can still play a safety protection role even in the event of electrical system failure. Attached Figure Description

[0013] Figure 1 A three-dimensional structural view provided for this utility model; Figure 2 A three-dimensional structural view of the feeding assembly provided by this utility model; Figure 3 A partial three-dimensional view of the feeding assembly provided by this utility model; Figure 4 A three-dimensional structural view of the safety limiting component provided by this utility model; Figure 5 A three-dimensional view of the mechanical limiting component provided by this utility model.

[0014] In the diagram: 1. Frame; 2. End plate; 3. Storage rack; 4. Connecting plate; 5. Feeding belt; 6. Gear motor; 7. Drive sprocket; 8. Shaft; 9. Driven sprocket; 10. Drive chain; 11. Take-up drum; 12. Traction shaft; 13. Traction roller; 14. Fixed plate; 15. Rotating rod; 16. Rotating plate; 17. Tension sensor; 18. Pull rope; 19. Mounting box; 20. Moving base; 21. Bearing seat; 22. Lead screw; 23. Coupling; 24. Threaded sleeve; 25. Strip hole; 26. Limit slider; 27. Limit switch. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] Please refer to the appendix. Figures 1-5 The safety limiter for the automatic pipe cutting and feeding machine provided by this utility model includes a frame 1, a plurality of end plates 2 are longitudinally fixed on the top of the frame 1, a material storage component is fixed on the rear side of the frame 1, a feeding component is fixed on the end plates 2, a safety limit component is fixed on the material storage component, and a mechanical limit component is fixed on the feeding component. The storage assembly includes several vertically arranged storage racks 3, all of which are fixed to the rear end of the frame 1. Each storage rack 3 has a connecting plate 4 fixed to its side and top, and a feeding belt 5 is fixed on the connecting plate 4. Specifically, the operator can stack the pipes to be cut horizontally on several feeding belts 5. The feeding assembly includes a geared motor 6, which is fixed at the bottom of the frame 1. A transmission sprocket 7 is fixed to the output shaft of the geared motor 6. A rotating shaft 8 is rotatably installed between the rear sides of two adjacent end plates 2. A driven sprocket 9 is fixed to the surface of the rotating shaft 8. The transmission sprocket 7 and the driven sprocket 9 are connected by a transmission chain 10. When the geared motor 6 is running, it can drive the transmission sprocket 7 to rotate, thereby driving the rotating shaft 8 to rotate synchronously through the transmission chain 10 and the driven sprocket 9. Several take-up drums 11 are fixed to the surface of the rotating shaft 8. The front ends of several feeding belts 5 are respectively fixed to several take-up drums 11. A traction shaft 12 is rotatably installed between the rear ends of two adjacent end plates 2. Several traction rollers 13 are fixed to the surface of the traction shaft 12. The surfaces of several feeding belts 5 are in contact with the surfaces of several traction rollers 13. Specifically, when the rotating shaft 8 rotates, it can drive the take-up drums 11 to rotate synchronously, thereby tightening and moving the feeding belts 5 upward, so that the pipes stacked on the feeding belts 5 can be fed forward to the rear end of the end plate 2. The safety limit assembly includes a fixed plate 14, which is fixed to the bottom of the side of the storage rack 3. A rotating rod 15 is rotatably mounted at the center of the fixed plate 14. A rotating plate 16 is fixed to the end of the rotating rod 15. A tension sensor 17 is fixed to the surface of the rotating plate 16. A pull rope 18 is fixed to the top of the tension sensor 17. The top of the pull rope 18 is fixed to the surface of the feeding belt 5. Specifically, when the feeding belt 5 is tightened and moved to the maximum height, the tension sensor 17 will be pulled up through the pull rope 18, thereby causing the tension sensor 17 to send a signal to the main controller to control the reduction motor 6 to stop running, that is, to limit the travel range of the feeding. The mechanical limiting assembly includes a mounting box 19, which is fixed to the side of the end plate 2. A movable base 20 is fixed inside the mounting box 19. A bearing seat 21 is fixed to the top of the movable base 20. A lead screw 22 is rotatably mounted on the bearing seat 21. A coupling 23 is fixed to the end of the lead screw 22. The end of the rotating shaft 8 is fixedly connected to the coupling 23. A threaded sleeve 24 is threaded onto the surface of the lead screw 22. A horizontal slotted hole 25 is opened at the top of the movable base 20. A limiting slider 26 is fixed to the bottom of the threaded sleeve 24. The limiting slider 26 slides horizontally within the slotted hole 25. Limit switches 27 are fixed to both sides of the bottom of the movable base 20. The limit switches 27 and the limiting slider 26 are located on the same vertical plane. Specifically, when reducing... When the speed motor 6 drives the rotating shaft 8 to rotate, it can drive the lead screw 22 to rotate synchronously through the coupling 23. Under the combined limiting action of the limit slider 26 and the strip hole 25, when the lead screw 22 rotates, the threaded sleeve 24 threaded to the surface of the lead screw 22 can move laterally back and forth. With the use of the limit switch 27, the single stroke of the threaded sleeve 24 can be effectively limited, thereby effectively limiting the number of rotations of the rotating shaft 8 driven by the speed motor 6, thereby limiting the height of the feeding belt 5 being tightened and moved upward, which can further limit the feeding stroke range, and prevent the equipment from causing safety accidents due to excessive operation from a mechanical point of view. Moreover, even in the event of an electrical system failure, it can still play a safety protection role. In summary, this equipment adopts a dual limit method to restrict the travel range of the equipment during feeding, thereby ensuring feeding safety. It has a simple structure and high reliability.

[0017] It should be noted that this utility model is electrically connected to the external 220V mains power through the main controller, and the main controller can be existing technical equipment that controls gas distribution cabinets and power distribution cabinets (not marked in the figure).

[0018] The usage process of this utility model is as follows: During use, the operator can horizontally stack the pipes to be cut onto several feeding belts 5. Then, the reduction motor 6 runs, driving the rotating shaft 8 to rotate. When the rotating shaft 8 rotates, it drives the winding drum 11 to rotate synchronously, thereby tightening and moving the feeding belts 5 upwards. This allows the pipes stacked on the feeding belts 5 to be fed forward to the rear end of the end plate 2. When the feeding belts 5 are tightened and moved to their maximum height, the tension sensor 17 is pulled up via the pull rope 18, causing the tension sensor 17 to send a signal to the main controller, controlling the reduction motor 6 to stop running, thus limiting the feeding stroke range. Furthermore, when the reduction motor 6 runs, it drives the rotating shaft 8 to rotate... When in operation, the lead screw 22 can be driven to rotate synchronously through the coupling 23. Under the combined limiting action of the limit slider 26 and the strip hole 25, when the lead screw 22 rotates, the threaded sleeve 24 threaded to the surface of the lead screw 22 can move laterally back and forth. With the use of the limit switch 27, the single stroke of the threaded sleeve 24 can be effectively limited, thereby effectively limiting the number of rotations of the shaft 8 driven by the geared motor 6, thereby limiting the height of the feeding belt 5 being tightened and moved upward, which can further limit the stroke range of the feeding, and prevent the equipment from causing safety accidents due to excessive operation from a mechanical point of view. Moreover, even in the event of an electrical system failure, it can still play a safety protection role.

[0019] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art can modify this utility model or modify it into an equivalent technical solution using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solution of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A safety limit switch for an automatic pipe cutting and feeding machine, comprising a frame (1), characterized in that: The top of the frame (1) is longitudinally fixed with several end plates (2), the rear side of the frame (1) is fixed with a storage component, the end plate (2) is fixed with a feeding component, the storage component is fixed with a safety limit component, and the feeding component is fixed with a mechanical limit component. The mechanical limiting assembly includes a mounting box (19), which is fixed to the side of the end plate (2). A movable base (20) is fixed inside the mounting box (19). A bearing seat (21) is fixed on the top of the movable base (20). A lead screw (22) is rotatably mounted on the bearing seat (21). A coupling (23) is fixed at the end of the lead screw (22). A threaded sleeve (24) is threaded onto the surface of the lead screw (22). A strip hole (25) is opened laterally on the top of the movable base (20). A limiting slider (26) is fixed at the bottom of the threaded sleeve (24). The limiting slider (26) slides laterally in the strip hole (25). Limit switches (27) are fixed on both sides of the bottom of the movable base (20). The limit switches (27) and the limiting slider (26) are located on the same vertical plane.

2. The safety limiter for the automatic pipe cutting and feeding machine according to claim 1, characterized in that: The storage assembly includes several vertically arranged storage racks (3), each of which is fixed to the rear end of the frame (1). Each storage rack (3) has a connecting plate (4) fixed to the top of its side end, and a feeding belt (5) is fixed on the connecting plate (4).

3. The safety limiter for the automatic pipe cutting and feeding machine according to claim 2, characterized in that: The feeding assembly includes a geared motor (6), the bottom of which is fixed to the bottom of the frame (1). The output shaft of the geared motor (6) is fixed with a transmission sprocket (7). A rotating shaft (8) is rotatably installed between the rear sides of two adjacent end plates (2). A driven sprocket (9) is fixed on the surface of the rotating shaft (8). The transmission sprocket (7) and the driven sprocket (9) are connected by a transmission chain (10). The end of the rotating shaft (8) is fixedly connected to a coupling (23).

4. The safety limiter for the automatic pipe cutting and feeding machine according to claim 3, characterized in that: The rotating shaft (8) has several take-up drums (11) fixed on its surface, and the front ends of several feeding belts (5) are respectively fixed on several take-up drums (11).

5. The safety limiter for the automatic pipe cutting and feeding machine according to claim 4, characterized in that: A traction shaft (12) is rotatably mounted between the rear ends of two adjacent end plates (2). Several traction rollers (13) are fixed on the surface of the traction shaft (12), and the surfaces of several feeding belts (5) are in contact with the surfaces of several traction rollers (13).

6. The safety limiter for the automatic pipe cutting and feeding machine according to claim 2, characterized in that: The safety limiting component includes a fixing plate (14), which is fixed to the bottom of the side end of the storage rack (3), and a rotating rod (15) is rotatably installed at the center of the fixing plate (14).

7. The safety limiter for the automatic pipe cutting and feeding machine according to claim 6, characterized in that: A rotating plate (16) is fixed to the end of the rotating rod (15), a tension sensor (17) is fixed to the surface of the rotating plate (16), a pull rope (18) is fixed to the top of the tension sensor (17), and the top of the pull rope (18) is fixed to the surface of the feeding belt (5).

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