Polyurethane elastic backing plate pressing table assembly

Abstract

The utility model relates to a polyurethane elastic backing plate pressing table assembly which comprises a backing plate pressing mechanism and a pressing table advancing and retreating mechanism, the backing plate pressing mechanism is arranged on the pressing table advancing and retreating mechanism and can be driven by the pressing table advancing and retreating mechanism to reciprocate, and the backing plate pressing mechanism is provided with a backing plate positioning tool and a pneumatic pressing mechanism. The pneumatic pressing mechanism is arranged above the base plate positioning tool and used for pressing the polyurethane elastic base plate, the pressing table advancing and retreating mechanism transfers the base plate pressing mechanism and the polyurethane elastic base plate to machining equipment, the base plate pressing mechanism and the pressing table advancing and retreating mechanism are electrically connected with the control system, and automatic operation of the base plate pressing table assembly can be achieved. When the control system detects that the base plate pressing mechanism and the pressing table advancing and retreating mechanism act abnormally, a power source is automatically cut off, meanwhile, sound-light alarm is given, operation is easy and safe, the polyurethane elastic base plate can be rapidly clamped, positioned and transferred to a machining station, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling equipment, in particular to a polyurethane elastic pad press table assembly. Background Art

[0002] At present, the polyurethane elastic pads used in railway lines are mostly made of rubber and thermoplastic elastomer (TP-5-5). In practical applications, especially in small radius curves and large slope sections, the service life of rubber pads is low and needs to be replaced frequently, and the wear and damage of heavy-duty railway thermoplastic elastomer (TP-5-5) pads to sleepers is particularly obvious. Thermosetting polyurethane elastic pads have been trial-laid on multiple lines since 2021. The maintenance and repair workload has been significantly reduced compared with the pads used before, and good use results have been achieved. After that, the National Railway Group issued the technical conditions for polyurethane elastic pads. The use of polyurethane elastic pads has become more and more widespread, and the use has increased rapidly. Due to the process molding of thermosetting polyurethane elastic pads, the formed polyurethane elastic pads need to be further processed to meet the use conditions. The polyurethane elastic pads need to be clamped, positioned and transferred to the processing equipment, which is inefficient and requires more labor, limiting the output of thermosetting polyurethane elastic pads. Therefore, this application proposes a polyurethane elastic pad press assembly that is simple and safe to operate and can be quickly clamped, positioned and transferred to the processing equipment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a polyurethane elastic pad press table assembly which is simple and safe to operate and can be quickly clamped and positioned.

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

[0005] A polyurethane elastic pad press plate assembly comprises a pad pressing mechanism and a press plate advance and retreat mechanism, wherein the pad pressing mechanism is arranged on the press plate advance and retreat mechanism, and the press plate advance and retreat mechanism can drive the pad pressing mechanism to reciprocate along the press plate advance and retreat mechanism, and the pad pressing mechanism is provided with a pad positioning tool and a pneumatic pressing mechanism, and the pneumatic pressing mechanism is arranged above the pad positioning tool for pressing the polyurethane elastic pad.

[0006] As an embodiment of the utility model, the pad pressing mechanism also includes a pressing platform and a pneumatic material return mechanism. The pressing platform is symmetrically arranged on both sides of the pad positioning tooling, the pneumatic pressing mechanism is fixed on the top of the pressing platform, and the pneumatic material return mechanism is arranged on one side of the pad positioning tooling.

[0007] As an implementation mode of the utility model, safety light curtains are arranged on both sides of the end of the pressing platform. The height of the safety light curtains is the same as that of the pressing platform and is used to detect foreign objects on the port to prevent injuries caused by automatic operation of the pneumatic clamping mechanism.

[0008] As an implementation mode of the utility model, the pneumatic pressing mechanism and the pneumatic material withdrawing mechanism are both provided with a plurality of cylinders, and the number of the cylinders corresponds one to one with the number of the polyurethane elastic pad pressing stations provided on the pad positioning tooling.

[0009] As an implementation mode of the present utility model, the cylinder is preferably a double-rod double-shaft cylinder.

[0010] As an implementation mode of the utility model, stainless steel protective covers are provided outside the pneumatic pressing mechanism and the pneumatic material withdrawing mechanism.

[0011] 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 to divide the base plate into two positioning stations. Multiple pad convex strips are arranged in parallel on the positioning stations and their spacing is relative to the polyurethane elastic pad for positioning the polyurethane elastic pad. Multiple stoppers are respectively vertically arranged on the end of one side of the rib and the partition, and the mounting hole is arranged at the end of the base plate.

[0012] As an embodiment of the utility model, the press plate advance and retreat mechanism includes a press plate slide rail, a synchronous belt drive assembly, a servo motor, a telescopic protective cover and a limit switch. The pad clamping mechanism is arranged on the press plate slide rail. The servo motor is connected to the pad clamping mechanism through the synchronous belt drive assembly and can drive the pad clamping mechanism to reciprocate along the press plate slide rail. Telescopic protective covers are arranged on both sides of the pad clamping mechanism. The telescopic 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 at both ends of the press plate slide rail.

[0013] As an implementation mode of the utility model, the pad clamping mechanism and the press table advance and retreat mechanism are controlled by a PLC system to operate in linkage.

[0014] As an implementation mode of the utility model, the PLC system is provided with an audible and visual alarm. When the PLC system detects abnormal operation of the pad clamping mechanism and the press plate advance and retreat mechanism, the power supply is cut off and an audible and visual alarm is issued.

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

[0016] The utility model provides a polyurethane elastic pad press assembly, including a pad clamping mechanism and a press advance and retreat mechanism, and the pad clamping mechanism can be driven to reciprocate by the press advance and retreat mechanism. The pad press assembly is controlled by a control system and can automatically operate, perform clamping, reciprocating motion and material withdrawal actions, and the pad clamping mechanism is provided with a safety light curtain. When there is a foreign object at the pad clamping mechanism, the pad clamping mechanism does not operate; the control system includes a PLC control module and a control box, and the control box is provided with an operation button and an emergency stop button for convenient processing operation and emergency stop. The PLC control module can control the automatic operation of the pad press assembly. When the control system detects that the pad press assembly is abnormal, it can automatically cut off its power supply and sound and light alarm at the same time. The present application is simple to operate and safe to use, and can quickly clamp and position the polyurethane elastic pad for the next step of processing, 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 This utility model Figure 1 The enlarged view of point A in the middle;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the pad positioning tooling of the utility model.

[0023] in:

[0024] 1. Pad clamping mechanism; 1-1. Pressing platform frame; 1-2. Pad positioning tool; 1-2-1. Bottom plate; 1-2-2. Block; 1-2-3. Side guard; 1-2-4. Pad convex strip; 1-2-5. Partition; 1-2-6. Mounting hole; 1-3. Pneumatic clamping mechanism; 1-4. Pneumatic material return mechanism; 1-5. Safety light curtain; 1-6. Cylinder; 2. Pressing platform advance and retreat mechanism; 2-1. Pressing platform slide rail; 2-2. Telescopic protective cover. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figures 1 to 6A polyurethane elastic pad press plate assembly is shown, which includes a pad clamping mechanism 1 and a press plate advance and retreat mechanism 2. The pad clamping mechanism 1 is arranged on the press plate advance and retreat mechanism 2. The press plate advance and retreat mechanism 2 can drive the pad clamping mechanism 1 to reciprocate along the press plate advance and retreat mechanism 2. The pad clamping mechanism 1 is provided with a pad positioning tool 1-2 and a pneumatic clamping mechanism 1-3. The pneumatic clamping mechanism 1-3 is arranged above the pad positioning tool 1-2 and is used to clamp the polyurethane elastic pad. The pad clamping mechanism 1 also includes a pressing platform 1-1 and a pneumatic material return mechanism 1-4. The pressing platform 1-1 is symmetrically arranged on both sides of the pad positioning tool 1-2, the pneumatic pressing mechanism 1-3 is fixed on the top of the pressing platform 1-1, and the pneumatic material return mechanism 1-4 is arranged on one side of the pad positioning tool 1-2. The pneumatic pressing mechanism 1-3 is provided with a vertical cylinder 1-6, and the pneumatic material return mechanism 1-4 is provided with a horizontal cylinder 1-6. The number of cylinders 1-6 corresponds to the number of polyurethane elastic pad clamping stations provided on the pad positioning tool 1-2. In the embodiment of the present application, the cylinder 1-6 is preferably a double-rod double-axis cylinder; safety light curtains 1-5 are provided on both sides of the end of the pressing platform 1-1. The height of the safety light curtain 1-5 is the same as that of the pressing platform 1-1 and is used to detect foreign matter on the port to prevent the pneumatic pressing mechanism 1-3 from automatically running and injuring the operator; stainless steel protective covers are provided on the outside of the pneumatic pressing mechanism 1-3 and the pneumatic material return mechanism 1-4.

[0027] like Figure 6 As shown, the pad positioning tool 1-2 includes a bottom plate 1-2-1 and a stopper 1-2-2. The bottom plate 1-2-1 is provided with a retaining edge 1-2-3, a pad convex strip 1-2-4, a partition 1-2-5 and a mounting hole 1-2-6. The retaining edge 1-2-3 is arranged at both ends of the upper bottom plate 1-2-1. In this embodiment, the partition 1-2-5 is arranged in the middle of the bottom plate 1-2-1 to separate the bottom plate 1-2-1 into two positioning stations. Multiple positioning stations can be set as needed during production. processing station; multiple pad convex strips 1-2-4 are arranged in parallel on the positioning station and their spacing corresponds to the polyurethane elastic pad, the pad convex strips 1-2-4 are used to position the polyurethane elastic pad, multiple blocks 1-2-2 are respectively vertically arranged on the ends of the retaining edge 1-2-3 and the partition 1-2-5 on one side, and are laterally positioned at the thermosetting polyurethane elastic pad, and the mounting hole 1-2-6 is arranged at the end of the bottom plate 1-2-1 for fixing the pad positioning tooling 1-2.

[0028] like Figures 1 to 4As shown, the press plate advance and retreat mechanism 2 includes a press plate slide rail 2-1, a synchronous belt drive assembly, a servo motor, a telescopic protective cover 2-2 and a limit switch. The pad clamping mechanism 1 is arranged on the press plate slide rail 2-1. The servo motor is connected to the pad clamping mechanism 1 through the synchronous belt drive assembly, and can drive the pad clamping mechanism 1 to reciprocate along the press plate slide rail 2-1. Two limit switches are respectively arranged at both ends of the press plate slide rail 2-1 and are electrically connected to the control system. The control system controls the reciprocating operation of the press plate advance and retreat mechanism 2 through the limit switch feedback; telescopic protective covers 2-2 are arranged on both sides of the pad clamping mechanism 1, and the telescopic protective covers 2-2 are arranged above the press plate slide rail 2-1 and can be extended or compressed with the reciprocating motion of the pad clamping mechanism 1.

[0029] The pad clamping mechanism 1 and the press plate advance and retreat mechanism 2 are controlled by the PLC system for linkage operation. The PLC system is provided with an audible and visual alarm. When the PLC system detects abnormal operation of the pad clamping mechanism 1 and the press plate advance and retreat mechanism 2, the power supply is cut off and an audible and visual alarm is sounded.

[0030] Brief description of working principle:

[0031] The operator places the polyurethane elastic pad to be processed on the pad positioning fixture 1-2 in the pad pressing mechanism 1. The pad positioning fixture 1-2 can be provided with multiple processing stations and multiple polyurethane elastic pads can be placed at the same time. In the embodiment of the present application, two processing stations are provided. The control system is started, and the pneumatic pressing mechanism 1-3 above the polyurethane elastic pad is driven downward by the telescopic cylinder to firmly press the polyurethane elastic pad; the pad pressing mechanism 1 is driven by the servo motor through the synchronous belt transmission assembly to reciprocate along the press table advance and retreat mechanism 2 to transfer the firmly fixed polyurethane elastic pad to the processing device After the polyurethane elastic pad is processed, it is removed from the processing equipment. The press table advance and retreat mechanism 2 can stay in the set position by setting the limit switch. The vertically arranged cylinder 1-6 of the pneumatic clamping mechanism 1-3 rises, and the horizontally arranged cylinder 1-6 of the pneumatic material return mechanism 1-4 pushes the processed polyurethane elastic pad away from the pad positioning tooling 1-2, so that the polyurethane elastic pad is pushed to the specified position, and the horizontal cylinder 1-6 is reset, and the press table advance and retreat mechanism 2 resets the pad clamping mechanism 1, and one cycle is completed. The actions of each part are realized by the control system through the PLC module to control the power supply and air source.

[0032] 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. A polyurethane elastic pad press assembly, characterized in that: It comprises a pad pressing mechanism (1) and a press table advance and retreat mechanism (2); the pad pressing mechanism (1) is arranged on the press table advance and retreat mechanism (2); the press table advance and retreat mechanism (2) can drive the pad pressing mechanism (1) to reciprocate along the press table advance and retreat mechanism (2); the pad pressing mechanism (1) is provided with a pad positioning tool (1-2) and a pneumatic pressing mechanism (1-3); the pneumatic pressing mechanism (1-3) is arranged above the pad positioning tool (1-2) and is used to press the polyurethane elastic pad.

2. The polyurethane elastic pad press table assembly according to claim 1, characterized in that: The pad pressing mechanism (1) further comprises a pressing platform (1-1) and a pneumatic material removal mechanism (1-4); the pressing platform (1-1) is symmetrically arranged on both sides of the pad positioning tool (1-2); the pneumatic pressing mechanism (1-3) is fixed on the top of the pressing platform (1-1); and the pneumatic material removal mechanism (1-4) is arranged on one side of the pad positioning tool (1-2).

3. The polyurethane elastic pad press table assembly according to claim 2, characterized in that: Safety light curtains (1-5) are arranged on both sides of the end of the pressing platform (1-1); the safety light curtains (1-5) have the same height as the pressing platform (1-1) and are used to detect foreign matter at the port to prevent the pneumatic pressing mechanism (1-3) from automatically operating and causing injuries.

4. The polyurethane elastic pad press table assembly according to claim 2, characterized in that: The pneumatic pressing mechanism (1-3) and the pneumatic material withdrawing mechanism (1-4) are both provided with a plurality of cylinders (1-6), and the number of the cylinders (1-6) corresponds one-to-one to the number of polyurethane elastic pad pressing stations provided on the pad positioning tooling (1-2).

5. The polyurethane elastic pad press table assembly according to claim 4, characterized in that: The cylinders (1-6) are preferably double-rod double-shaft cylinders.

6. The polyurethane elastic pad press table assembly according to claim 2, characterized in that: The pneumatic pressing mechanism (1-3) and the pneumatic material withdrawing mechanism (1-4) are both provided with stainless steel protective covers on the outside.

7. The polyurethane elastic pad press table assembly according to claim 2, characterized in that: The pad positioning tool (1-2) comprises a bottom plate (1-2-1) and a stopper (1-2-2); the bottom plate (1-2-1) is provided with a retaining edge (1-2-3), a pad convex strip (1-2-4), a partition (1-2-5) and a mounting hole (1-2-6); the retaining edge (1-2-3) is arranged at both ends of the bottom plate (1-2-1); the partition (1-2-5) is arranged in the middle of the bottom plate (1-2-1) to separate the bottom plate (1-2-1) into two positioning stations; a plurality of pad convex strips (1-2-4) are arranged in parallel on the positioning stations and their spacing is relative to the polyurethane elastic pad for positioning the polyurethane elastic pad; a plurality of the stoppers (1-2-2) are respectively arranged vertically at one end of the retaining edge (1-2-3) and the partition (1-2-5); and the mounting hole (1-2-6) is arranged at the end of the bottom plate (1-2-1).

8. The polyurethane elastic pad press table assembly according to claim 1, characterized in that: The press plate advance and retreat mechanism (2) comprises a press plate slide rail (2-1), a synchronous belt transmission assembly, a servo motor, a telescopic protective cover (2-2) and a limit switch; the pad clamping mechanism (1) is arranged on the press plate slide rail (2-1); the servo motor is connected to the pad clamping mechanism (1) via the synchronous belt transmission assembly and can drive the pad clamping mechanism (1) to reciprocate along the press plate slide rail (2-1); telescopic protective covers (2-2) are arranged on both sides of the pad clamping mechanism (1); the telescopic protective covers (2-2) are arranged above the press plate slide rail (2-1) and can be extended or compressed with the reciprocating movement of the pad clamping mechanism (1); and the two limit switches are respectively arranged at both ends of the press plate slide rail (2-1).

9. The polyurethane elastic pad press table assembly according to claim 1, characterized in that: The pad pressing mechanism (1) and the press table advancing and retreating mechanism (2) are controlled by a PLC system to operate in linkage.

10. The polyurethane elastic pad press table assembly according to claim 9, characterized in that: The PLC system is provided with an audible and visual alarm. When the PLC system detects that the pad pressing mechanism (1) and the press table advance and retreat mechanism (2) are operating abnormally, the power supply is cut off and an audible and visual alarm is sounded.

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