An automated rail tie rebar cutting apparatus

Abstract

The application discloses an automatic sleeper steel bar cutting equipment and relates to the technical field of sleeper production.The equipment comprises a cutting assembly, first roller lines and second roller lines are arranged on the two sides of the cutting assembly, and a one-way structure is arranged on the first roller lines.The soft sleeper is sent into the cutting assembly from the first roller lines.The cutting assembly comprises a support frame, a driven plate is arranged in the support frame, and a horizontal structure capable of horizontally moving the driven plate is arranged in the support frame.The application can improve the consistency of the sleeper steel bar cutting position, reduce the end quality problems caused by the cutting position deviation, realize the automatic opening and closing of the contact plate through the cooperation of the rollers and the groove track, complete the self-adaptive centering adjustment of the cutting station through the horizontal floating structure, does not need to additionally arrange a plurality of driving components, simplifies the overall structure of the equipment, reduces the manufacturing cost and the maintenance difficulty, and is suitable for the operation rhythm of batch production.

Description

Technical Field

[0001] This invention relates to the field of railway sleeper manufacturing technology, and in particular to an automated railway sleeper rebar cutting device. Background Technology

[0002] Currently, the mainstream prestressed concrete sleepers produced in China using the pre-tensioning method are generally mass-produced using assembly line or long-line production platform methods. The prestressed steel bars continuously run through the entire mold or production platform. Therefore, after the sleeper concrete has cured, the steel bar cutting process is necessary. This is to separate the continuously connected components into individual sleeper products, adapting to the mass production process; it is also to strictly adhere to the production standard of "releasing tension before cutting," slowly releasing the tension after the concrete has reached the required strength before cutting, avoiding quality and safety issues such as end concrete cracking and steel bar rebound injuries caused by stress cutting, ensuring uniform and stable prestress distribution within the sleeper, and meeting core performance requirements such as static load crack resistance and fatigue life. Simultaneously, precise cutting strictly controls the exposed length of the end steel bars, ensuring it meets railway industry product standards and avoiding potential safety hazards caused by excessive exposure. It also provides the necessary prerequisites for subsequent demolding, quality inspection, stacking, and logistics transfer, making it an indispensable key process in the sleeper production process.

[0003] A search revealed Chinese patent document CN111872282B, which discloses an automated railway sleeper rebar cutting device. The device includes: a longitudinal conveyor for transporting sleepers with connected rebars after demolding; a shearing mechanism positioned above the longitudinal conveyor, which, through lifting and lowering, places its shearing nozzle on the rebar to be cut and applies shearing force to the rebar using a laterally moving slider, thus cutting the rebar; a drive device for driving the shearing mechanism to lift and lower, and also for driving the slider to move laterally; and a transverse conveyor for receiving the rebar cut by the shearing mechanism and delivering it to a predetermined position. This invention can automatically complete the cutting of rebar between sleepers, and the cutting method uses mechanical cutting, which greatly improves cutting efficiency compared to the traditional manual welding and melting cutting method, and is also environmentally friendly and pollution-free. The invention has a simple structure, is easy to use, and is convenient for market promotion.

[0004] Based on the search and existing technology, it was found that the above-mentioned cutting equipment is not equipped with a sleeper gap recognition and precise station positioning mechanism. It only achieves sleeper feeding through continuous conveying by a longitudinal conveyor. The cutting point of the shearing mechanism is relatively fixed and cannot be accurately aligned with the gap between the reinforcing bars of two adjacent sleepers. Therefore, it cannot be guaranteed that the cutting position is always in the middle of the two sleepers. This defect directly leads to poor consistency in the exposed length of the reinforcing bars at the sleeper ends, making it difficult to consistently meet the tolerance requirements of railway industry product standards and increasing the number of defective products. Summary of the Invention

[0005] The purpose of this invention is to provide an automated railway sleeper rebar cutting device to solve the problems mentioned in the background art.

[0006] The technical solution of this invention is: an automated sleeper rebar cutting device, comprising a cutting assembly, wherein a first roller line and a second roller line are respectively arranged on both sides of the cutting assembly, and a one-way structure is provided on the first roller line. A sleeper is fed into the cutting assembly from the first roller line. The cutting assembly includes a support frame, and a driven plate is arranged inside the support frame. A horizontal structure capable of horizontally moving the driven plate is also provided inside the support frame. A moving plate is arranged below the driven plate, and a lifting mechanism is arranged between the driven plate and the moving plate. A middle block is arranged below the moving plate, and multiple guide rods are slidably inserted into the outer side of the middle block. One end of each guide rod is fixed to the moving plate, and a second spring is sleeved on the outer side of the guide rod. The two ends of the second spring are respectively connected to the middle block and the moving plate. The two guide rods are in contact with each other, and the other end of each guide rod is connected to a cutting mechanism. The cutting assembly has contact plates on both sides. The contact plates and the middle block are connected to a parallelogram structure on the same side. The surface of the contact plate has multiple first positioning grooves. The steel bars of the soft pillow can pass through the first positioning grooves. The parallelogram structure includes two parallel rotating rods. A connecting shaft is rotatably installed at one end of the rotating plate and is fixed to the contact plate. A fixed shaft is rotatably installed at the other end of the rotating plate and is fixed to the middle block. One of the fixed shafts in the two parallelogram structures is fixed with a transmission gear arranged coaxially with it. The two transmission gears mesh with each other. Rollers with shafts are fixed on both sides of the contact plate. Grooved rails are fixed on both sides of the roller frame of the first roller line and the second roller line.

[0007] Preferably, the unidirectional structure includes two concave blocks, which are respectively fixed on both sides of the roller frame of the first roller line. Both ends of the concave blocks are provided with circular slots. A rotating hole is provided inside the circular slot and is coaxially arranged therewith. A first rotating shaft is rotatably mounted on the two rotating holes. A first eccentric block is fixed on the outside of the first rotating shaft. A coil spring is fixed on the outside of the first rotating shaft and the circular slot.

[0008] Preferably, the horizontal structure includes multiple crossbars, the two ends of which are fixed to the inner walls of the two ends of the support frame. The driven plate is slidably sleeved on each crossbar. A first spring is sleeved on both ends of each crossbar. The two first springs on the crossbar are located at the two ends of the driven plate, and the two ends of the first springs are in contact with the support frame and the driven plate, respectively.

[0009] Preferably, the lifting mechanism includes a first hydraulic rod, the cylinder of the first hydraulic rod is fixed to the driven plate, and the telescopic end of the first hydraulic rod is fixed to the moving plate.

[0010] Preferably, the top surface of the movable plate is fixed with multiple guide posts, which are slidably inserted into the driven plate.

[0011] Preferably, the cutting mechanism includes a fixed frame, which is fixed to each guide rod. A housing is fixed to the bottom of the fixed frame. Multiple straight second positioning grooves are provided on both sides of the housing. The bottom end of the second positioning groove is not closed. A cutting block is slidably inserted into the inside of the housing. A drive mechanism for making the cutting block move horizontally and linearly is provided on the outside of the housing.

[0012] Preferably, the driving mechanism includes multiple movable columns, which are slidably inserted into one side of the housing. One end of each movable column is fixed to the cutting block, and the other end of each movable column is fixed to a force-bearing plate. A third spring is sleeved on the outside of each movable column, and the two ends of the third spring are in contact with the force-bearing plate and the housing, respectively.

[0013] Preferably, the driving mechanism includes a second hydraulic rod, a positioning block is fixed to one end of the cylinder of the second hydraulic rod, a second rotating shaft is fixed to the outside of the positioning block, a first bearing seat is rotatably mounted at both ends of the second rotating shaft, the first bearing seat is fixed to the housing, a through hole is opened at the telescopic end of the second hydraulic rod, a transmission rod is rotatably mounted in the through hole, a connecting rod is fixed to both ends of the transmission rod, a third rotating shaft is fixed to one end of the two connecting rods, a second bearing seat is rotatably mounted at both ends of the third rotating shaft, the second bearing seat is fixed to the housing, a second eccentric block is fixed to the outside of the third rotating shaft, and the second eccentric block is in contact with the force plate.

[0014] Preferably, the bottom of the housing is fixed with an outlet shell, and the bottom of the outlet shell has multiple openings, each opening being aligned with a second positioning groove. During the downward movement of the housing, the reinforcing bars of the soft pillow pass through the openings and enter the second positioning grooves, and the cut reinforcing bars are exited from the outlet shell.

[0015] Preferably, contact blocks are fixed on both sides of the housing.

[0016] This invention provides an automated railway sleeper rebar cutting device with the following improvements and advantages compared to the prior art:

[0017] Firstly, this invention can not only improve the consistency of the cutting position of the sleeper steel bars and reduce the end quality problems caused by the offset of the cutting position, but also realize the automatic opening and closing of the contact plate through the cooperation of the roller and the grooved rail. Combined with the horizontal floating structure, it can complete the adaptive centering adjustment of the cutting station. There is no need to set up multiple sets of driving components, simplifying the overall structure of the equipment, reducing manufacturing costs and maintenance difficulties, and adapting to the operation rhythm of mass production.

[0018] Secondly, the present invention adopts a multi-level floating buffer and step-by-step positioning structural design, which can adapt to different specifications of sleeper products within a certain range, absorb the impact vibration during the pressing and cutting process, reduce the wear rate of equipment parts, help extend the service life of the equipment, and reduce maintenance costs in the production process. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the working state of the present invention;

[0021] Figure 2 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0022] Figure 3 for Figure 2 A magnified structural diagram at point A;

[0023] Figure 4 This is a schematic diagram of the overall second-view three-dimensional structure of the present invention;

[0024] Figure 5 for Figure 4 A magnified structural diagram at point B;

[0025] Figure 6 This is a partial three-dimensional structural diagram of the cutting component of the present invention;

[0026] Figure 7 for Figure 6 A magnified structural diagram at point C;

[0027] Figure 8 This is a three-dimensional structural diagram of the cutting mechanism of the present invention;

[0028] Figure 9 This is a partial three-dimensional structural diagram of the cutting mechanism of the present invention;

[0029] Figure 10 This is a partial internal structural diagram of the cutting mechanism of the present invention.

[0030] Figure label:

[0031] 1. Cutting assembly; 2. First roller conveyor; 3. Second roller conveyor; 4. Grooved rail; 5. Roller with shaft; 6. Contact plate; 7. First positioning groove; 8. Housing; 9. Second positioning groove; 10. Cutting block; 11. Outlet housing; 12. Concave block; 13. First eccentric block; 14. First rotating shaft; 15. Coil spring; 16. Circular hole groove; 17. Support frame; 18. Driven plate; 19. Crossbar; 20. First spring; 21. Guide post; 22. First hydraulic... 23. Rod; 24. Moving plate; 25. Intermediate block; 26. Second spring; 27. Guide rod; 28. Rotating rod; 29. ​​Transmission gear; 30. Fixed shaft; 31. Fixed frame; 32. Second hydraulic rod; 33. Positioning block; 34. Second rotating shaft; 35. First bearing seat; 36. Transmission rod; 37. Connecting rod; 38. Contact block; 39. Second eccentric block; 40. Third rotating shaft; 41. Force plate; 42. Third spring; 43. Moving column. Detailed Implementation

[0032] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This invention provides an automated sleeper rebar cutting device through improvements. The technical solution of this invention is as follows:

[0034] like Figures 1 to 10As shown, this embodiment of the invention provides an automated sleeper rebar cutting device, including a cutting assembly 1. A first roller line 2 and a second roller line 3 are respectively arranged on both sides of the cutting assembly 1. A unidirectional structure is provided on the first roller line 2. A sleeper is fed into the cutting assembly 1 from the first roller line 2. The cutting assembly 1 includes a support frame 17. A driven plate 18 is arranged inside the support frame 17, and a horizontal structure is provided inside the support frame 17 to allow the driven plate 18 to move horizontally. A moving plate 23 is arranged below the driven plate 18. A lifting mechanism is arranged between the driven plate 18 and the moving plate 23. A middle block 24 is arranged below the moving plate 23. Multiple guide rods 26 are slidably inserted into the outer side of the middle block 24. One end of each guide rod 26 is fixed to the moving plate 23, and a second spring 25 is sleeved on the outer side of each guide rod 26. The two ends of the second spring 25 are respectively connected to the middle block 24. Contacting the moving plate 23, the other ends of each guide rod 26 are connected to the cutting mechanism. Both sides of the cutting assembly 1 are provided with contact plates 6. The contact plates 6 and the middle block 24 are connected to a parallelogram structure on the same side. The surface of the contact plate 6 is provided with multiple first positioning grooves 7. The steel bars of the soft pillow can pass through the first positioning grooves 7. The parallelogram structure includes two parallel rotating plates. One end of the rotating plate is rotatably mounted with a connecting shaft, which is fixed to the contact plate 6. The other end of the rotating plate is rotatably mounted with a fixed shaft 29, which is fixed to the middle block 24. One of the fixed shafts 29 in the two parallelogram structures is fixed with a transmission gear 28 coaxially arranged with it. The two transmission gears 28 mesh with each other. Both sides of the contact plate 6 are fixed with rollers 5 with shafts. Both sides of the roller frame of the first roller line 2 and the second roller line 3 are fixed with grooved rails 4.

[0035] As can be seen from the above, the first roller line 2 and the second roller line 3 are set on both sides of the cutting assembly 1 to realize the continuous flow and conveying of the sleepers, which is suitable for the production rhythm of the assembly line. The unidirectional structure on the first roller line 2 can restrict the reverse movement of the sleepers, avoid the sleepers from backing up and deviating during the conveying process, and ensure the stability of the feed position. As the moving plate 23 continues to move down, the rollers 5 with shafts on both sides of the contact plate 6 will contact the grooved rails 4 on both sides of the roller frame. Under the guidance of the slope of the grooved rails 4, the two contact plates 6 will expand outward synchronously through the constraint of the parallelogram structure. Under the action of the two meshing transmission gears 28, the expansion range of the left and right contact plates 6 is consistent until the contact plates 6 contact the soft sleeper. If the cutting assembly 1 is not in the middle position of the two soft sleepers at this time, the centering force generated when the two contact plates 6 are in contact with the side of the soft sleeper will push the driven plate 18 to slide adaptively in the horizontal direction along the crossbar 19.

[0036] Specifically, the unidirectional structure includes two concave blocks 12, which are fixed on both sides of the roller frame of the first roller line 2. Both ends of the concave blocks 12 are provided with circular slots 16. A rotating hole is provided inside the circular slot 16 and is coaxially arranged therewith. A first rotating shaft 14 is rotatably mounted on the two rotating holes. A first eccentric block 13 is fixed on the outside of the first rotating shaft 14. A coil spring 15 is fixed on the outside of the first rotating shaft 14 and the circular slot 16.

[0037] As can be seen from the above, the unidirectional structure composed of concave block 12, first rotating shaft 14, first eccentric block 13 and coil spring 15 relies on the elastic force of coil spring 15 to maintain the initial posture of first eccentric block 13. When the sleeper passes in the forward direction, it can push the first eccentric block 13 to rotate around the axis to avoid it. When moving in the reverse direction, the first eccentric block 13 can abut against the end face of the sleeper to form a block. The structure is simple and reliable, and the unidirectional limiting function can be realized without additional power drive.

[0038] Specifically, the horizontal structure includes multiple crossbars 19, with both ends of the crossbars 19 fixed to the inner walls of both ends of the support frame 17. The driven plate 18 is slidably sleeved on each crossbar 19. Both ends of the crossbars 19 are sleeved with a first spring 20. The two first springs 20 of the crossbars 19 are located at both ends of the driven plate 18, and both ends of the first springs 20 are in contact with the support frame 17 and the driven plate 18, respectively.

[0039] As can be seen from the above, the horizontal floating structure composed of the crossbar 19 and the first spring 20 allows the driven plate 18 to slide horizontally on the crossbar 19, and the first spring 20 at both ends can provide a restoring force and a buffering effect. When the contact plate 6 is aligned with the sleeper for centering adjustment, the driven plate 18 can slide adaptively along the crossbar 19, driving the cutting assembly 1 to adjust to the middle position of the sleeper, offsetting the positional deviation caused by the conveying, and absorbing some of the lateral vibration during the cutting process, thus improving the stability of the equipment operation.

[0040] Specifically, the lifting mechanism includes a first hydraulic rod 22, the cylinder of the first hydraulic rod 22 is fixed to the driven plate 18, and the telescopic end of the first hydraulic rod 22 is fixed to the moving plate 23.

[0041] As can be seen from the above, using the first hydraulic rod 22 as the lifting drive component can provide sufficient downward pressure to meet the force requirements of steel bar shearing. At the same time, the hydraulic drive process is relatively stable, and the lifting speed and stroke can be controlled, making it easy to adjust the downward pressure depth according to different specifications of sleepers, thus ensuring the stability of the cutting operation.

[0042] Specifically, multiple guide posts 21 are fixed on the top surface of the movable plate 23, and the multiple guide posts 21 are slidably inserted into the driven plate 18.

[0043] As can be seen from the above, by setting guide posts 21 on the moving plate 23 and sliding them with the driven plate 18, the lifting and lowering movements of the moving plate 23 can be guided and constrained, so as to avoid the moving plate 23 from tilting or shaking during the lifting and lowering process, thereby improving the motion stability of the lower cutting mechanism and ensuring the smooth execution of the cutting action.

[0044] Specifically, the cutting mechanism includes a fixed frame 30, which is fixed to each guide rod 26. A housing 8 is fixed to the bottom of the fixed frame 30. Multiple straight second positioning grooves 9 are provided on both sides of the housing 8. The bottom end of the second positioning grooves 9 is not closed. A cutting block 10 is slidably inserted inside the housing 8. A drive mechanism for the cutting block 10 to move horizontally in a straight line is provided on the outside of the housing 8.

[0045] As can be seen from the above, the second positioning groove 9 with a bottom opening is provided on the shell 8, which can smoothly insert the steel bar during the downward movement of the shell 8, limit the position of the steel bar and avoid the steel bar from deflecting during the cutting process; the internal sliding cutting block 10, together with the driving mechanism, can realize the transverse shearing action to complete the cutting operation of the steel bar. The overall structure is compact and the shearing action is direct, which is conducive to improving the efficiency of the cutting operation.

[0046] Specifically, the drive mechanism includes multiple movable columns 42, which are slidably inserted into one side of the housing 8. One end of the multiple movable columns 42 is fixed to the cutting block 10, and the other end of the multiple movable columns 42 is fixed to the force plate 40. A third spring 41 is sleeved on the outside of the movable columns 42, and the two ends of the third spring 41 are in contact with the force plate 40 and the housing 8, respectively.

[0047] As can be seen from the above, the moving column 42 can guide the lateral movement of the cutting block 10, ensuring that the cutting block 10 moves in a straight line. The third spring 41 can provide a reset force after the shearing action is completed, so that the cutting block 10 automatically returns to the initial position, preparing for the next cutting operation, simplifying the design of the drive circuit and improving the reliability of the structure operation.

[0048] Specifically, the drive mechanism includes a second hydraulic rod 31. A positioning block 32 is fixed to one end of the cylinder of the second hydraulic rod 31. A second rotating shaft 33 is fixed to the outside of the positioning block 32. First bearing seats 34 are rotatably mounted at both ends of the second rotating shaft 33. The first bearing seats 34 are fixed to the housing 8. A through hole is opened at the telescopic end of the second hydraulic rod 31. A transmission rod 35 is rotatably mounted in the through hole. Connecting rods 36 are fixed to both ends of the transmission rod 35. A third rotating shaft 39 is fixed to one end of the two connecting rods 36. Second bearing seats are rotatably mounted at both ends of the third rotating shaft 39. The second bearing seats are fixed to the housing 8. A second eccentric block 38 is fixed to the outside of the third rotating shaft 39. The second eccentric block 38 is in contact with the force plate 40.

[0049] As can be seen from the above, by using the transmission method of the second hydraulic rod 31 in conjunction with the eccentric block, the extension and retraction of the hydraulic rod can be converted into the rotation of the third rotating shaft 39, and then the second eccentric block 38 pushes the force plate 40 and the cutting block 10 to complete the shearing feed; the hinged installation structure can adapt to the angle change during the extension and retraction of the hydraulic rod, the transmission process is smooth, and the eccentric structure can amplify the shearing force and improve the cutting ability of the steel bar.

[0050] Specifically, a guide shell 11 is fixed at the bottom of the housing 8. The bottom of the guide shell 11 has multiple openings, each of which is aligned with a second positioning groove 9. During the downward movement of the housing 8, the reinforcing bars of the soft pillow pass through the openings and enter the second positioning groove 9. The cut reinforcing bars are then discharged from the guide shell 11.

[0051] As can be seen from the above, the outlet shell 11 with a through-hole is set at the bottom of the shell 8, which can guide the steel bars smoothly into the second positioning groove 9, improve the smoothness of alignment, and also receive the steel bar segments that fall after being cut, guide the steel bar segments to be discharged along a fixed path, avoid the cut steel bars from being scattered on the production line, facilitate the centralized collection and cleaning of waste materials, and maintain the cleanliness and order of the production site.

[0052] Specifically, contact blocks 37 are fixed on both sides of the housing 8.

[0053] As can be seen from the above, the contact block 37 is in contact with the contact plate 6, which prevents the rotating rod 27 on the contact plate 6 from being perpendicular to the ground, resulting in a dead point effect.

[0054] Working principle: The soft pillows connected in series are conveyed from the first roller line 2 to the cutting assembly 1. When passing through the unidirectional structure, the forward thrust of the soft pillow will push the first eccentric block 13 to rotate around the first rotating shaft 14, and the coil spring 15 will be compressed, so that the soft pillow can pass forward smoothly. If the soft pillow tends to retreat, the first eccentric block 13 will be reset under the elastic force of the coil spring 15 and abut against the end face of the soft pillow to form a blockage and prevent the soft pillow from shifting its position.

[0055] After the soft pillow is delivered to the cutting station, the first hydraulic rod 22 of the lifting mechanism begins to extend, pushing the moving plate 23 to move downward along the guide column 21. The middle block 24, the cutting mechanism, and the contact plates 6 on both sides will move downward synchronously with the moving plate 23. In the initial stage of descent, the contact plate 6 moves vertically downward with the overall structure. The first positioning groove 7 on the plate surface will first align with the gap between the two soft pillows, and insert each steel bar in the gap into the first positioning groove 7 to complete the initial alignment constraint of the steel bars and prevent the steel bars from shifting left and right during the downward pressing process.

[0056] As the moving plate 23 continues to move downward, the rollers 5 on both sides of the contact plate 6 will contact the grooved rails 4 on both sides of the roller frame. Guided by the slope of the grooved rails 4, the two contact plates 6 will expand outward synchronously through the constraint of the parallelogram structure. Under the action of the two meshing transmission gears 28, the expansion range of the left and right contact plates 6 is consistent until the contact plates 6 contact the soft pillow. If the cutting assembly 1 is not in the middle position of the two soft pillows at this time, the centering force generated when the two contact plates 6 are in contact with the side of the soft pillow will push the driven plate 18 to slide adaptively in the horizontal direction along the crossbar 19. With the buffering and reset effect of the first spring 20, the cutting assembly 1 will automatically adjust to the middle position of the two soft pillows, complete the centering and positioning of the soft pillow, and keep the gap between the cutting station and the soft pillow corresponding.

[0057] At this time, the first hydraulic rod 22 continues to extend, and the moving plate 23 drives the guide rod 26 to continue to move downward. The middle block 24 cannot continue to move downward because the contact plate 6 has been attached to the soft pillow. The second spring 25 will be gradually compressed to buffer the rigid impact force of the downward pressure. At the same time, the housing 8 of the cutting mechanism continues to descend with the guide rod 26. The steel bars in the gap between the two soft pillows will enter the second positioning grooves 9 on both sides of the housing 8 through the opening at the bottom of the outlet housing 11 until the contact blocks 37 on both sides of the housing 8 abut against the top surface of the soft pillow. The housing 8 stops moving downward. At this time, the steel bars are within the shearing stroke range of the cutting block 10.

[0058] Subsequently, the second hydraulic rod 31 of the drive mechanism extends, driving the third rotating shaft 39 to rotate via the transmission rod 35 and the connecting rod 36. The second eccentric block 38 fixed on the third rotating shaft 39 rotates accordingly, and the eccentric protrusion pushes the force plate 40 to move towards the housing 8. The force plate 40 drives the cutting block 10 to slide laterally along the inside of the housing 8 via the moving column 42, applying shearing force to the steel bar in the second positioning groove 9 to complete the cutting operation of the steel bar. After the cutting is completed, the second hydraulic rod 31 retracts, driving the second eccentric block 38 to rotate back. The elastic force of the third spring 41 pushes the force plate 40 and the cutting block 10 to reset, returning to the initial position to wait for the next cutting.

[0059] After all the cutting actions are completed, the first hydraulic rod 22 retracts, driving the moving plate 23 and all the lower structures to rise and reset. The roller 5 with shaft rolls upward along the grooved rail 4, and the contact plates 6 on both sides retract inward and separate from the side of the soft pillow. The second spring 25 rebounds, causing the middle block 24 and the cutting mechanism to return to their initial relative positions. The driven plate 18 also returns to its initial horizontal position under the action of the first spring 20. The cut single soft pillow continues to be conveyed backward by the second roller line 3, and the cut and fallen steel bar segments slide down and are discharged along the internal channel of the outlet shell 11, completing the steel bar cutting process of a single set of soft pillows. Subsequent soft pillows can repeat the above process to achieve continuous production.

[0060] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automated sleeper rebar cutting device, comprising a cutting assembly (1), characterized in that: The cutting assembly (1) has a first roller line (2) and a second roller line (3) on both sides, and the first roller line (2) has a one-way structure. The soft pillow is fed into the cutting assembly (1) from the first roller line (2). The cutting assembly (1) includes a support frame (17). The support frame (17) has a driven plate (18) inside, and a horizontal structure that allows the driven plate (18) to move horizontally is provided inside the support frame (17). A moving plate (23) is provided below the driven plate (18). A lifting mechanism is provided between the driven plate (18) and the moving plate (23). A middle block (24) is provided below the moving plate (23). Multiple guide rods (26) are slidably inserted on the outside of the middle block (24). One end of the guide rod (26) is fixed to the moving plate (23). A second spring (25) is sleeved on the outside of the guide rod (26). The two ends of the second spring (25) are respectively connected to the middle block (24) and the moving plate (23). The other ends of each guide rod (26) are connected to a cutting mechanism. Both sides of the cutting assembly (1) are provided with contact plates (6). The contact plates (6) and the middle block (24) are connected to a parallelogram structure on the same side. The surface of the contact plate (6) is provided with multiple first positioning grooves (7). The steel bars of the soft pillow can pass through the first positioning grooves (7). The parallelogram structure includes two parallel rotating rods (27). One end of the rotating plate is rotatably installed with a connecting shaft, which is fixed to the contact plate (6). The other end of the rotating plate is rotatably installed with a fixed shaft (29), which is fixed to the middle block (24). One of the fixed shafts (29) in the two parallelogram structures is fixed with a transmission gear (28) that is coaxial with it. The two transmission gears (28) mesh with each other. Both sides of the contact plate (6) are fixed with rollers (5) with shafts. Both sides of the roller frame of the first roller line (2) and the second roller line (3) are fixed with grooved rails (4).

2. The automated sleeper rebar cutting device according to claim 1, characterized in that: The unidirectional structure includes two concave blocks (12), which are respectively fixed on both sides of the roller frame of the first roller line (2). Both ends of the concave blocks (12) are provided with circular slots (16). The circular slots (16) are provided with rotating holes coaxially arranged inside them. The two rotating holes are used to rotatably install a first rotating shaft (14). A first eccentric block (13) is fixed on the outside of the first rotating shaft (14). A coil spring (15) is fixed on the outside of the first rotating shaft (14) and the circular slots (16).

3. The automated sleeper rebar cutting device according to claim 1, characterized in that: The horizontal structure includes multiple crossbars (19), with the two ends of each crossbar (19) fixed to the inner walls of the two ends of the support frame (17). A driven plate (18) is slidably sleeved on each crossbar (19). A first spring (20) is sleeved on both ends of each crossbar (19). The two first springs (20) on the crossbar (19) are located at the two ends of the driven plate (18), and the two ends of the first springs (20) are in contact with the support frame (17) and the driven plate (18), respectively.

4. The automated sleeper rebar cutting device according to claim 1, characterized in that: The lifting mechanism includes a first hydraulic rod (22), the cylinder of the first hydraulic rod (22) is fixed to the driven plate (18), and the telescopic end of the first hydraulic rod (22) is fixed to the moving plate (23).

5. The automated sleeper rebar cutting device according to claim 4, characterized in that: The top surface of the movable plate (23) is fixed with multiple guide posts (21), which are slidably inserted into the driven plate (18).

6. The automated sleeper rebar cutting device according to claim 1, characterized in that: The cutting mechanism includes a fixed frame (30), which is fixed to each guide rod (26). A housing (8) is fixed to the bottom of the fixed frame (30). Multiple straight second positioning grooves (9) are provided on both sides of the housing (8). The bottom end of the second positioning groove (9) is not closed. A cutting block (10) is slidably inserted into the inside of the housing (8). A driving mechanism for the cutting block (10) to move horizontally in a straight line is provided on the outside of the housing (8).

7. The automated sleeper rebar cutting device according to claim 6, characterized in that: The driving mechanism includes multiple movable columns (42), which are slidably inserted into one side of the housing (8). One end of each movable column (42) is fixed to the cutting block (10), and the other end of each movable column (42) is fixed to a force plate (40). A third spring (41) is sleeved on the outside of each movable column (42), and the two ends of the third spring (41) are in contact with the force plate (40) and the housing (8) respectively.

8. The automated sleeper rebar cutting device according to claim 7, characterized in that: The driving mechanism includes a second hydraulic rod (31), a positioning block (32) is fixed at one end of the cylinder of the second hydraulic rod (31), a second rotating shaft (33) is fixed on the outside of the positioning block (32), a first bearing seat (34) is rotatably installed at both ends of the second rotating shaft (33), the first bearing seat (34) is fixed to the housing (8), a through hole is opened at the telescopic end of the second hydraulic rod (31), a transmission rod (35) is rotatably installed in the through hole, a connecting rod (36) is fixed at both ends of the transmission rod (35), a third rotating shaft (39) is fixed at one end of the two connecting rods (36), a second bearing seat is rotatably installed at both ends of the third rotating shaft (39), the second bearing seat is fixed to the housing (8), a second eccentric block (38) is fixed on the outside of the third rotating shaft (39), and the second eccentric block (38) is in contact with the force plate (40).

9. An automated sleeper rebar cutting device according to claim 6, characterized in that: The bottom of the housing (8) is fixed with an outlet shell (11). The bottom of the outlet shell (11) has multiple openings, each of which is aligned with each of the second positioning grooves (9). During the downward movement of the housing (8), the steel bars of the soft pillow pass through the openings and enter the second positioning grooves (9). The cut steel bars are then discharged from the outlet shell (11).

10. An automated sleeper rebar cutting device according to claim 6, characterized in that: Contact blocks (37) are fixed on both sides of the housing (8).

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