Automatic cutting equipment for pouring gate of backing plate under thermosetting polyurethane elastomer rail

Abstract

The utility model relates to automatic cutting equipment for a sprue of a backing plate under a thermosetting polyurethane elastomer rail, which comprises a rack, a backing plate pressing table assembly, a cutting machine assembly and a control system, the backing plate pressing table assembly is arranged on the rack and comprises a backing plate pressing mechanism and a pressing table advancing and retreating mechanism, and the pressing table advancing and retreating mechanism is fixed at the top of the rack. The base plate pressing mechanism can be driven by the pressing table advancing and retreating mechanism to reciprocate, the cutting machine assembly is arranged on one side of the base plate pressing table assembly and fixed to the rack, the control system comprises a PLC control module and a control box, and the control box is fixed to the outer side face of the rack and provided with a switch button, a cutting machine button and an emergency stop button. The PLC control module is fixed in the rack, electrically connected with the base plate pressing table assembly and the cutting machine assembly and capable of controlling the base plate pressing table assembly to automatically run, and when a control system detects that the base plate pressing table assembly and the cutting machine assembly act abnormally, a power source of the base plate pressing table assembly and the cutting machine assembly is automatically cut off, and meanwhile an alarm is given. And the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling equipment, in particular to an automatic cutting device for a gate of a thermosetting polyurethane elastomer rail bottom pad. Background Art

[0002] At present, the rail pads used in railway lines are mostly made of rubber and thermoplastic elastomer (TPEE). In practical applications, especially in small radius curves and large slope sections, the service life of rubber pads is relatively low and needs to be replaced frequently. In addition, the wear and damage of heavy-duty railway thermoplastic elastomer (TPEE) pads to sleepers is particularly obvious. Thermosetting polyurethane elastomer rail pads have been trial-laid on multiple lines since 2021. The maintenance and repair workload has been significantly reduced compared with the original pads, and good use results have been achieved. After that, the National Railway Group issued the technical conditions for polyurethane elastomer rail pads. The use of polyurethane elastomer rail pads has become more and more widespread, and the usage has increased rapidly. Due to its process molding, the gate position of the thermosetting polyurethane elastomer rail pad needs to be removed separately. The removal method is mostly milling and removal, which is inefficient and limits the production of thermosetting polyurethane elastomer rail pads. Therefore, this application proposes a thermosetting polyurethane elastomer rail pad gate automatic cutting device that is simple and safe to operate, can be quickly clamped and positioned, and has high production efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automatic cutting device for the gate of a thermosetting polyurethane elastomer rail bottom pad, which is simple and safe to operate, can be quickly clamped and positioned, and has high production efficiency.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] A thermosetting polyurethane elastomer rail bottom pad gate automatic cutting device comprises a frame, a pad press assembly, a cutting machine assembly and a control system. The pad press assembly is arranged on the frame and can reciprocate on the top of the frame. The cutting machine assembly is arranged on one side of the pad press assembly and fixed on the frame. The control system is fixedly arranged on the frame and electrically connected to the pad press assembly and the cutting machine assembly.

[0006] As an embodiment of the utility model, the pad pressing platform assembly includes a pad pressing mechanism and a pressing platform advance and retreat mechanism, the pad pressing mechanism is fixed on the pressing platform advance and retreat mechanism, and the pressing platform advance and retreat mechanism can drive the pad pressing mechanism to reciprocate along the pressing platform advance and retreat mechanism.

[0007] As an embodiment of the utility model, the pad clamping mechanism includes a press table, a pad positioning tool, a pneumatic clamping mechanism, a pneumatic material return mechanism and a safety light curtain. The pad positioning tool is arranged at the bottom of the press table, the pneumatic clamping mechanism is arranged at the top of the press table, and the pneumatic material return mechanism is arranged on the side of the press table. The pneumatic clamping mechanism and the pneumatic material return mechanism are both provided with protective covers on the outside. The safety light curtain is arranged at the press table port for detecting foreign objects in the feedback port to prevent the pneumatic clamping mechanism from causing crushing injuries during automatic operation.

[0008] As an embodiment of the utility model, the pad positioning tool includes a base plate and a stopper, and the base plate is provided with a rib, a pad convex strip, a partition and a mounting hole. The rib is arranged at both ends of the upper base plate, and the partition is arranged in the middle of the base plate. A plurality of pad convex strips are arranged in parallel between the rib and the partition, and the spacing thereof corresponds to the pad under the thermosetting polyurethane elastomer rail. A plurality of the stoppers are respectively vertically arranged at one end of the rib and the partition, and the mounting hole is arranged at the end of the base plate.

[0009] As an embodiment of the utility model, the press plate advance and retreat mechanism includes a press plate slide rail, a synchronous belt transmission assembly, a servo motor, a protective cover and a limit switch. The press plate slide rail is fixed on the top of the frame. The pad clamping mechanism is arranged on the press plate slide rail and can slide along the press plate slide rail. The servo motor is arranged in the frame and is connected to the pad clamping mechanism through the synchronous belt transmission assembly. The servo motor can drive the pad clamping mechanism to reciprocate along the press plate slide rail. Retractable protective covers are arranged on both sides of the pad clamping mechanism. The protective covers are arranged above the press plate slide rail and can be extended or compressed with the reciprocating motion of the pad clamping mechanism. The two limit switches are respectively arranged on the press plate slide rail and are electrically connected to the control system at both ends. The control system can control the reciprocating operation of the press plate advance and retreat mechanism.

[0010] As an embodiment of the utility model, the cutting machine assembly includes a tool lifting and adjusting mechanism, a tool mechanism, a protective cover and a waste collection box. The tool mechanism is movably arranged in the frame. The lifting and adjusting mechanism is arranged on the tool mechanism and can drive the tool mechanism to move up and down. A cutting knife is installed on the tool mechanism. The protective cover is arranged on the cutting knife. The waste collection box is inclined below the cutting knife, and a waste discharge port is arranged at its lower end on the frame.

[0011] As an embodiment of the utility model, the tool lifting and adjusting mechanism includes a handwheel, a transmission rod and a fixed seat, the fixed seat is obliquely arranged on the outer side of the frame, one end of the transmission rod is arranged on the fixed seat and the other end is obliquely extended into the frame to be connected with the tool mechanism, the handwheel is fixed to the upper end of the transmission rod, and rotating the handwheel can drive the tool mechanism to rise and fall.

[0012] As an implementation mode of the utility model, the tool mechanism includes a drive motor, and the drive motor is electrically connected to the control system. When the speed of the drive motor is abnormal, the control system controls the pad press assembly to stop moving.

[0013] As an embodiment of the utility model, the control system includes a PLC control module and a control box, the PLC control module is fixed in the frame, the control box is fixed on the outer side of the frame, the PLC control module and the control box are electrically connected, the control box is provided with a switch button, a cutting machine button and an emergency stop button, the PLC control module is electrically connected to the pad press assembly and the cutting machine assembly, and can control the automatic operation of the pad press assembly.

[0014] As an embodiment of the utility model, the PLC control module is provided with an audible and visual alarm, which is fixed on the frame and electrically connected to the control system. When the PLC control module detects that the pad press plate assembly and the cutting machine assembly are operating abnormally, the power supply of the pad press plate assembly and the cutting machine assembly is automatically cut off, and the audible and visual alarm sounds an alarm.

[0015] The beneficial effects of adopting the above technical solution are:

[0016] The utility model provides an automatic cutting device for a gate of a thermosetting polyurethane elastomer rail pad, comprising a pad pressing platform assembly, a cutting machine assembly and a control system. The pad pressing platform assembly comprises a pad pressing mechanism and a pressing platform advancing and retreating mechanism. The pad pressing mechanism can be driven to reciprocate by the pressing platform advancing and retreating mechanism. The pad press plate assembly is controlled by the control system and can operate automatically, performing pressing, reciprocating motion and material withdrawing actions. The pad press plate mechanism is provided with a safety light curtain. When there is a foreign object at the pad press plate mechanism, the pad press plate mechanism will not operate; the cutting machine assembly is provided on one side of the pad press plate assembly and is provided with a tool lifting and adjusting mechanism. The tool height can be adjusted to adapt to the cutting of rail pads of various thicknesses. A protective cover is provided outside the cutting tool. The driving motor is connected to the control system. When the motor speed is abnormal, the pad press plate assembly will not operate; the control system includes a PLC control module and a control box. The control box is fixed on the outside of the frame and is provided with an operation button and an emergency stop button for easy operation and emergency stop. The PLC control module can control the automatic operation of the pad press plate assembly. When the control system detects that the pad press plate assembly and the cutting machine assembly operate abnormally, it can automatically cut off their power supply and simultaneously give an audible and visual alarm. The present application is simple to operate and safe to use. It can quickly clamp and position the rail pad for gate cutting, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another angle;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the utility model from another angle;

[0020] Figure 4 It is a front structural schematic diagram of the utility model;

[0021] Figure 5 It is a side view structural schematic diagram of the utility model;

[0022] Figure 6 This utility model Figure 1 The enlarged view of point A in the middle;

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the pad positioning tooling of the utility model.

[0024] in:

[0025] 1. Frame; 2. Pad plate pressing table assembly; 2-1. Pad plate pressing mechanism; 2-1-1. Pressing table frame; 2-1-2. Pad plate positioning tool; 2-1-2a. Bottom plate; 2-1-2b. Stopper; 2-1-2c. Sidewall; 2-1-2d. Pad plate convex strip; 2-1-2e. Partition plate; 2-1-2f. Mounting hole; 2-1-3. Pneumatic pressing mechanism; 2-1-4. Pneumatic material removal mechanism; 2-1-5, safety light curtain; 2-2, press plate advance and retreat mechanism; 2-2-1, press plate slide rail; 2-2-2, telescopic protective cover; 3, cutting machine assembly; 3-1, tool lifting and adjusting mechanism; 3-1-1, hand wheel; 3-1-2, transmission rod; 3-1-3, fixed seat; 3-2, protective cover; 3-3, waste collection box; 4, control system; 4-1, control box; 4-2, sound and light alarm. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model is clearly and completely described below in conjunction with specific embodiments.

[0027] like Figures 1 to 7 The device for automatically cutting the gate of the underlay plate of a thermosetting polyurethane elastomer rail shown in the figure comprises a frame 1, a plate pressing table assembly 2, a cutting machine assembly 3 and a control system 4. The frame 1 is a frame-type box-type structure. The plate pressing table assembly 2 is arranged on the top of the frame 1 and can reciprocate on the top of the frame 1. The cutting machine assembly 3 is arranged on one side of the plate pressing table assembly 2 and is fixed in the box of the frame 1. The control system 4 comprises a PLC control module and a control box 4-1. The PLC control module is fixed in the box of the frame 1. The control box 4-1 is fixed on the outer side of the frame 1. The PLC control module and the control box 4-1 are fixed on the outer side of the frame 1. The control box 4-1 is electrically connected, and a switch button, a cutting machine button and an emergency stop button are arranged on the control box 4-1. The PLC control module is electrically connected to the pad press plate assembly 2 and the cutting machine assembly 3, and can control the pad press plate assembly 2 to automatically run; the PLC control module is also provided with an audible and visual alarm 4-2, and the audible and visual alarm 4-2 is fixed on the frame 1 and electrically connected to the control system 4. When the PLC control module detects that the pad press plate assembly 2 and the cutting machine assembly 3 are operating abnormally, the power supply of the pad press plate assembly 2 and the cutting machine assembly 3 is automatically cut off, and an alarm is sounded through the audible and visual alarm 4-2.

[0028] like Figures 1 to 6 As shown, the pad pressing platform assembly 2 includes a pad pressing mechanism 2-1 and a platform advancing and retreating mechanism 2-2. The pad pressing mechanism 2-1 is fixed on the platform advancing and retreating mechanism 2-2, and the platform advancing and retreating mechanism 2-2 can drive the pad pressing mechanism 2-1 to reciprocate along the platform advancing and retreating mechanism 2-2. Figure 6As shown, the pad clamping mechanism 2-1 includes a press platform 2-1-1, a pad positioning tool 2-1-2, a pneumatic clamping mechanism 2-1-3, a pneumatic material return mechanism 2-1-4 and a safety light curtain 2-1-5. The pad positioning tool 2-1-2 is arranged at the bottom of the press platform 2-1-1, the pneumatic clamping mechanism 2-1-3 is arranged at the top of the press platform 2-1-1, and a vertical telescopic cylinder is arranged. The pneumatic material return mechanism 2-1-4 is arranged on the side of the press platform 2-1-1, and a plurality of horizontal telescopic cylinders corresponding to the pad positioning tool 2-1-2 are arranged. Protective covers are arranged on the outside of the pneumatic clamping mechanism 2-1-3 and the pneumatic material return mechanism 2-1-4. The safety light curtain 2-1-5 is arranged at the ports on both sides of the press platform 2-1-1 for detecting foreign matter in the feedback port to prevent the pneumatic clamping mechanism 2-1-3 from automatically running and injuring the operator.

[0029] like Figure 7 As shown, the pad positioning tool 2-1-2 includes a bottom plate 2-1-2a and a stopper 2-1-2b. The bottom plate 2-1-2a is provided with a retaining edge 2-1-2c, a pad convex strip 2-1-2d, a partition 2-1-2e and a mounting hole 2-1-2f. The retaining edge 2-1-2c is arranged at both ends of the upper bottom plate 2-1-2a. In this embodiment, the partition 2-1-2e is arranged in the middle of the bottom plate 2-1-2a, and the bottom plate 2-1-2a is divided into two processing stations. Multiple processing stations can be set as needed during production; multiple The pad convex strip 2-1-2d is arranged in parallel between the retaining edge 2-1-2c and the partition 2-1-2e, and the spacing thereof corresponds to the pad under the thermosetting polyurethane elastomer rail. It is used to position the pad under the thermosetting polyurethane elastomer rail. A plurality of stoppers 2-1-2b are respectively vertically arranged at the ends of one side of the retaining edge 2-1-2c and the partition 2-1-2e, and are used for lateral positioning of the pad under the thermosetting polyurethane elastomer rail. The mounting hole 2-1-2f is arranged at the end of the bottom plate 2-1-2a for fixing the pad positioning tooling 2-1-2.

[0030] like Figures 1 to 5As shown, the press plate advance and retreat mechanism 2-2 includes a press plate slide rail 2-2-1, a synchronous belt drive assembly, a servo motor, a telescopic protective cover 2-2-2 and a limit switch. The press plate slide rail 2-2-1 is fixed on the top of the frame 1. The pad clamping mechanism 2-1 is arranged on the press plate slide rail 2-2-1 and can slide along the press plate slide rail 2-2-1. The servo motor and the synchronous belt drive assembly are arranged in the frame 1. The servo motor is connected to the pad clamping mechanism 2-1 through the synchronous belt drive assembly to drive the pad The plate clamping mechanism 2-1 reciprocates along the press slide rail 2-2-1; two limit switches are respectively arranged on both ends of the press slide rail 2-2-1 and are electrically connected to the control system 4, and the control system 4 controls the reciprocating operation of the press advance and retreat mechanism 2-2 through the limit switch feedback; retractable telescopic protective covers 2-2-2 are arranged on both sides of the pad clamping mechanism 2-1, and the telescopic protective covers 2-2-2 are arranged above the press slide rail 2-2-1 and can be extended or compressed with the reciprocating motion of the pad clamping mechanism 2-1.

[0031] like Figures 1 to 6 As shown, the cutting machine assembly 3 includes a tool lifting and adjusting mechanism 3-1, a tool mechanism, a protective cover 3-2 and a waste collection box 3-3. The tool mechanism includes a driving motor, and the driving motor is electrically connected to the control system 4. When the driving motor rotates abnormally, the control system 4 controls the pad press assembly 2 to stop. The tool mechanism is movably arranged in the housing of the frame 1. The lifting and adjusting mechanism 3-1 is arranged on the tool mechanism and can drive the tool mechanism to move up and down. A cutting knife is installed on the tool mechanism. The cutting knife is driven by the driving motor to rotate and cut the gate of the rail pad. The cutting knife is preferably a cemented carbide three-edge milling cutter; the height of the tool mechanism is adjusted by the lifting and adjusting mechanism 3-1 to adapt to cutting rail pads of various thicknesses; the protective cover 3-2 is arranged on the outside of the cutting knife to prevent the cutting knife from flying out or foreign objects from entering. The waste collection box 3-3 is tilted below the cutting knife, and its lower end is provided with a waste collection box on the frame 1. Discharge port; the tool lifting adjustment mechanism 3-1 includes a handwheel 3-1-1, a transmission rod 3-1-2 and a fixed seat 3-1-3, the fixed seat 3-1-3 is tilted and arranged on the outer side of the frame 1, one end of the transmission rod 3-1-2 is arranged on the fixed seat 3-1-3 and the other end is tilted and extends into the frame 1 to connect with the tool mechanism, the handwheel 3-1-1 is fixed to the upper end of the transmission rod 3-1-2, and the tool mechanism can be driven to rise and fall by turning the handwheel 3-1-1, the transmission rod 3-1-2 is preferably arranged as a lifting screw, and a lifting nut matching the lifting screw is arranged on the tool mechanism.

[0032] Brief description of working principle:

[0033] The operator places the rail pad to be processed on the pad positioning fixture 2-1-2 in the pad clamping mechanism 2-1 (the pad positioning fixture 2-1-2 is provided with multiple processing stations and can place multiple rail pads), presses the switch button on the control box 4-1, and the pneumatic clamping mechanism 2-1-3 above the rail pad is driven downward by the telescopic cylinder to firmly clamp the rail pad; the pad clamping mechanism 2-1 is driven by the servo motor through the synchronous belt transmission assembly to reciprocate along the press table advance and retreat mechanism 2-2; the cutting machine assembly 3 is equipped with a milling cutter, and the automatic cutting of the rail pad gate is realized by the rotational motion of the milling cutter and the linear motion of the rail pad; after the cutting of the rail pad gate is completed, the waste scraps slide out from the discharge port of the waste collection box 3-3. The press table advance and retreat mechanism 2-2 can stay at the set position by setting the limit switch, the vertical telescopic cylinder of the pneumatic clamping mechanism 2-1-3 rises, the horizontal cylinder of the pneumatic material withdrawal mechanism 2-1-4 pushes out the rail pad that has been cut, and pushes the rail pad to the specified position, the horizontal cylinder resets, the press table advance and retreat mechanism 2-2 resets the pad clamping mechanism 2-1, and this cycle ends. The actions of each part are realized by the control system 4 through the PLC module to control the power supply and air source.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic cutting device for the gate of a thermosetting polyurethane elastomer rail pad, characterized in that: It comprises a frame (1), a pad press assembly (2), a cutting machine assembly (3) and a control system (4); the pad press assembly (2) is arranged on the frame (1) and can reciprocate on the top of the frame (1); the cutting machine assembly (3) is arranged on one side of the pad press assembly (2) and fixed on the frame (1); and the control system (4) is fixedly arranged on the frame (1) and is electrically connected to the pad press assembly (2) and the cutting machine assembly (3).

2. The automatic cutting device for the gate of the thermosetting polyurethane elastomer rail bottom pad according to claim 1, characterized in that: The pad pressing platform assembly (2) comprises a pad pressing mechanism (2-1) and a pressing platform advancing and retreating mechanism (2-2); the pad pressing mechanism (2-1) is fixed to the pressing platform advancing and retreating mechanism (2-2); and the pressing platform advancing and retreating mechanism (2-2) can drive the pad pressing mechanism (2-1) to reciprocate along the pressing platform advancing and retreating mechanism (2-2).

3. The automatic cutting device for the gate of the thermosetting polyurethane elastomer rail bottom pad according to claim 2, characterized in that: The pad clamping mechanism (2-1) comprises a press frame (2-1-1), a pad positioning tool (2-1-2), a pneumatic clamping mechanism (2-1-3), a pneumatic material return mechanism (2-1-4) and a safety light curtain (2-1-5); the pad positioning tool (2-1-2) is arranged at the bottom of the press frame (2-1-1); the pneumatic clamping mechanism (2-1-3) is arranged at the top of the press frame (2-1-1); the pneumatic material return mechanism (2-1-4) is arranged on the side of the press frame (2-1-1); the pneumatic clamping mechanism (2-1-3) and the pneumatic material return mechanism (2-1-4) are both provided with protective covers on the outside; the safety light curtain (2-1-5) is arranged at the port of the press frame (2-1-1) for detecting foreign matter at the feedback port to prevent the pneumatic clamping mechanism (2-1-3) from automatically running and causing crushing injuries.

4. The automatic cutting device for the gate of the thermosetting polyurethane elastomer rail bottom pad according to claim 3 is characterized by: The pad positioning tool (2-1-2) comprises a bottom plate (2-1-2a) and a stopper (2-1-2b); the bottom plate (2-1-2a) is provided with a retaining edge (2-1-2c), a pad convex strip (2-1-2d), a partition (2-1-2e) and a mounting hole (2-1-2f); the retaining edge (2-1-2c) is arranged at both ends of the bottom plate (2-1-2a); the partition (2-1-2e) is arranged at the bottom plate (2-1-2a); 2a), a plurality of pad convex strips (2-1-2d) are arranged in parallel between the retaining edge (2-1-2c) and the partition (2-1-2e) with a spacing corresponding to the lower pad of the thermosetting polyurethane elastomer rail, a plurality of stoppers (2-1-2b) are respectively arranged vertically at one end of the retaining edge (2-1-2c) and the partition (2-1-2e), and the mounting hole (2-1-2f) is arranged at the end of the bottom plate (2-1-2a).

5. The automatic cutting device for the gate of the thermosetting polyurethane elastomer rail bottom pad according to claim 2, characterized in that: The press table advance and retreat mechanism (2-2) comprises a press table slide rail (2-2-1), a synchronous belt drive assembly, a servo motor, a telescopic protective cover (2-2-2) and a limit switch; the press table slide rail (2-2-1) is fixed to the top of the frame (1); the pad pressing mechanism (2-1) is arranged on the press table slide rail (2-2-1) and can slide along the press table slide rail (2-2-1); the servo motor is arranged in the frame (1) and is connected to the pad pressing mechanism (2-1) via the synchronous belt drive assembly; the servo motor can drive the pad pressing mechanism (2-1) to press the pad. The mechanism (2-1) reciprocates along the press plate slide rail (2-2-1), and retractable telescopic protective covers (2-2-2) are arranged on both sides of the pad clamping mechanism (2-1). The telescopic protective covers (2-2-2) are arranged above the press plate slide rail (2-2-1) and can be extended or compressed along with the reciprocating movement of the pad clamping mechanism (2-1). The two limit switches are respectively arranged on the two ends of the press plate slide rail (2-2-1) and are electrically connected to the control system (4). The control system (4) can control the reciprocating operation of the press plate advance and retreat mechanism (2-2).

6. The automatic cutting device for the gate of the thermosetting polyurethane elastomer rail bottom pad according to claim 1, characterized in that: The cutting machine assembly (3) comprises a tool lifting and adjusting mechanism (3-1), a tool mechanism, a protective cover (3-2) and a waste collection box (3-3); the tool mechanism is movably arranged in the frame (1); the lifting and adjusting mechanism (3-1) is arranged on the tool mechanism and can drive the tool mechanism to move up and down; a cutting knife is mounted on the tool mechanism; the protective cover (3-2) is arranged on the cutting knife; the waste collection box (3-3) is arranged obliquely below the cutting knife, and a waste discharge port is arranged at its lower end on the frame (1).

7. The automatic cutting device for the gate of the thermosetting polyurethane elastomer rail bottom pad according to claim 6, characterized in that: The tool lifting and adjusting mechanism (3-1) comprises a hand wheel (3-1-1), a transmission rod (3-1-2) and a fixed seat (3-1-3); the fixed seat (3-1-3) is arranged obliquely on the outer side of the frame (1); one end of the transmission rod (3-1-2) is arranged on the fixed seat (3-1-3) and the other end is inclined to extend into the frame (1) and connected to the tool mechanism; the hand wheel (3-1-1) is fixed to the upper end of the transmission rod (3-1-2); the hand wheel (3-1-1) can be rotated to drive the tool mechanism to rise and fall.

8. The automatic cutting device for the gate of the thermosetting polyurethane elastomer rail bottom pad according to claim 6, characterized in that: The tool mechanism comprises a drive motor, the drive motor is electrically connected to the control system (4), and when the rotation speed of the drive motor is abnormal, the control system (4) controls the pad press table assembly (2) to stop moving.

9. The automatic gate cutting device for thermosetting polyurethane elastomer rail bottom pad according to claim 1, characterized in that: The control system (4) comprises a PLC control module and a control box (4-1); the PLC control module is fixed in the frame (1); the control box (4-1) is fixed on the outer side of the frame (1); the PLC control module and the control box (4-1) are electrically connected; the control box (4-1) is provided with a switch button, a cutting machine button and an emergency stop button; the PLC control module is electrically connected to the pad press assembly (2) and the cutting machine assembly (3) and can control the pad press assembly (2) to automatically operate.

10. The automatic cutting device for the gate of the thermosetting polyurethane elastomer rail bottom pad according to claim 9, characterized in that: The PLC control module is provided with an audible and visual alarm (4-2), which is fixed on the frame (1) and electrically connected to the control system (4). When the PLC control module detects that the pad press assembly (2) and the cutting machine assembly (3) are operating abnormally, the power supply of the pad press assembly (2) and the cutting machine assembly (3) is automatically cut off, and the audible and visual alarm (4-2) sounds an alarm.

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