A rubber preform cutting device

Abstract

This utility model discloses a rubber preforming cutting device, including a frame with a conveyor line at the upper end. An L-shaped support frame is fixedly installed on one side of the top of the frame. A reciprocating cylinder is fixedly connected to the top of the support frame. A U-shaped lifting frame is fixedly connected to the output end of the reciprocating cylinder. A motor is fixedly connected to the outer wall of one side of the lifting frame. A bidirectional lead screw is fixedly connected to the output end of the motor and rotatably connected to the other inner wall of the lifting frame. Clamping plates are threaded to both ends of the bidirectional lead screw. A slider is fixedly connected to the top of each clamping plate. A cross groove is opened at the lower end of the corresponding outer wall of each clamping plate. A cross block is engaged in each of the two cross grooves. A connecting rod is fixedly connected between the two cross blocks. This utility model can switch between a first cutter and a second cutter, and is easy to operate, thus improving the production efficiency of rubber.

Description

Technical Field

[0001] This utility model relates to the field of rubber production technology, specifically a rubber preforming and cutting device. Background Technology

[0002] Rubber production is the process of processing natural rubber (obtained from plants such as rubber trees) or synthetic rubber (obtained through chemical synthesis) into rubber products with specific properties and uses through a series of processes. This includes multiple stages such as mixing, molding, and vulcanization, among which cutting is a very important stage.

[0003] In current rubber cutting devices, the cutter is usually fixed to the drive structure with bolts. When cutting rubber of different thicknesses, different types of cutters need to be replaced, which is very cumbersome to disassemble and install, thus reducing production efficiency. To address this, we propose a rubber preforming cutting device. Utility Model Content

[0004] The purpose of this invention is to provide a rubber preforming and cutting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rubber preforming cutting device, comprising a frame, a conveyor line at the upper end of the frame, an L-shaped support frame fixedly installed on one side of the top of the frame, a reciprocating cylinder fixedly connected to the top of the support frame, a U-shaped lifting frame fixedly connected to the output end of the reciprocating cylinder, a motor fixedly connected to one outer wall of the lifting frame, a bidirectional lead screw fixedly connected to the output end of the motor, and the bidirectional lead screw rotatably connected to the other inner wall of the lifting frame, clamping plates threaded to both ends of the bidirectional lead screw, sliders fixedly connected to the top of both clamping plates, cross grooves opened at the lower ends of the corresponding outer walls of the two clamping plates, cross blocks engaged in the two cross grooves, a connecting rod fixedly connected between the two cross blocks, a first cutter fixedly connected to the outer wall of the connecting rod, and a second cutter fixedly connected to the bottom end of the connecting rod.

[0006] Preferably, the top of the lifting frame is provided with a sliding groove, and all the sliders are engaged in the sliding groove.

[0007] Preferably, the outer diameter of both cross blocks is adapted to the inner diameter of the cross groove.

[0008] Preferably, the first cutter, the second cutter, and the connecting rod are arranged in an L-shape.

[0009] Preferably, the cutting end of the first cutter is set at an acute angle, and the cutting end of the second cutter is set at an obtuse angle.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the starting motor drives the bidirectional lead screw to rotate in both directions, and then through the linkage of the clamping plate, lifting frame, slide groove, slider, cross groove, cross block and connecting rod, the first cutter and the second cutter can be switched. The operation is convenient and improves the production efficiency of rubber. It is also suitable for clamping and fixing connecting rods of different lengths, and has good practicality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the lifting frame structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the separation structure of the cross block and clamping plate of this utility model;

[0014] Figure 4 This is a schematic diagram of the planar structure of the first cutter, connecting rod, and second cutter of this utility model.

[0015] In the diagram: 1. Frame; 11. Conveyor line; 12. Support frame; 13. Reciprocating cylinder; 2. Lifting frame; 201. Slide groove; 202. Cross groove; 21. Motor; 22. Bidirectional lead screw; 23. Clamping plate; 24. Slider; 3. Connecting rod; 31. Cross block; 32. First cutter; 33. Second cutter. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4This utility model provides a technical solution: a rubber preforming cutting device, including a frame 1, a conveyor line 11 at the upper end of the frame 1, an L-shaped support frame 12 fixedly installed on one side of the top of the frame 1, a reciprocating cylinder 13 fixedly connected to the top of the support frame 12, a U-shaped lifting frame 2 fixedly connected to the output end of the reciprocating cylinder 13, a motor 21 fixedly connected to the outer wall of one side of the lifting frame 2, a bidirectional lead screw 22 fixedly connected to the output end of the motor 21, and the bidirectional lead screw 22 rotatably connected to the other inner wall of the lifting frame 2, clamping plates 23 threaded to both ends of the bidirectional lead screw 22, sliders 24 fixedly connected to the top of the two clamping plates 23, cross grooves 202 opened at the lower ends of the corresponding outer walls of the two clamping plates 23, cross blocks 31 clamped in the two cross grooves 202, a connecting rod 3 fixedly connected between the two cross blocks 31, a first cutter 32 fixedly connected to the outer wall of the connecting rod 3, and a second cutter 33 fixedly connected to the bottom end of the connecting rod 3.

[0018] Furthermore, a sliding groove 201 is provided at the top of the lifting frame 2, and the sliders 24 are all locked in the sliding groove 201. The clamping plate 23 slides along the sliding groove 201 through the sliders 24.

[0019] Furthermore, the outer diameter of both cross blocks 31 is adapted to the inner diameter of the cross groove 202, and the connecting rod 3 can be inserted into the cross groove 202 through the two cross blocks 31.

[0020] Furthermore, the first cutter 32, the second cutter 33, and the connecting rod 3 are arranged in an L-shape, and when the first cutter 32 and the second cutter 33 switch, they are both in a vertically downward state.

[0021] Furthermore, the first cutter 32 has an acute-angled cutting end, while the second cutter 33 has an obtuse-angled cutting end. The acute-angled first cutter 32 can cut thinner rubber, while the obtuse-angled second cutter 33 can cut thicker rubber.

[0022] Specifically, when using this utility model, when it is necessary to switch the cutter, the starter motor 21 rotates forward to drive the bidirectional lead screw 22 to rotate. The bidirectional lead screw 22 will simultaneously drive the two clamping plates 23. The two clamping plates 23 will slide outward along the slide groove 201 through the slider 24. At this time, the cross groove 202 will also disengage from the cross block 31. Then, the operator will rotate the connecting rod 3 so that the unused one is in a vertical downward position. Then, the connecting rod 3 can be inserted into the cross groove 202 through the two cross blocks 31. Similarly, when the starter motor 21 reverses, the connecting rod 3 can be clamped and fixed. The cutter head switching operation is convenient, time-saving and labor-saving. Finally, the starter reciprocating cylinder 13 drives the lifting frame 2 to move downward, so that the cutter can cut the rubber.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber preform cutting device comprising a frame (1), characterized in that: A conveyor line (11) is provided on the upper end of the frame (1). An L-shaped support frame (12) is fixedly installed on one side of the top of the frame (1). A reciprocating cylinder (13) is fixedly connected to the top of the support frame (12). A U-shaped lifting frame (2) is fixedly connected to the output end of the reciprocating cylinder (13). A motor (21) is fixedly connected to the outer wall of one side of the lifting frame (2). A bidirectional lead screw (22) is fixedly connected to the output end of the motor (21). The bidirectional lead screw (22) is rotatably connected to the other side of the lifting frame (2). On the inner sidewall, both ends of the bidirectional lead screw (22) are threaded with clamping plates (23), and the top of each clamping plate (23) is fixedly connected with a slider (24). The lower ends of the outer walls of the two clamping plates (23) are respectively provided with cross grooves (202). Cross blocks (31) are engaged in the two cross grooves (202). A connecting rod (3) is fixedly connected between the two cross blocks (31). A first cutter (32) is fixedly connected to the outer wall of the connecting rod (3), and a second cutter (33) is fixedly connected to the bottom end of the connecting rod (3).

2. The rubber preforming and cutting device according to claim 1, characterized in that: The top of the lifting frame (2) is provided with a sliding groove (201), and the sliders (24) are all stuck in the sliding groove (201).

3. The rubber preforming and cutting device according to claim 1, characterized in that: The outer diameter of both cross blocks (31) is adapted to the inner diameter of the cross groove (202).

4. The rubber preforming and cutting device according to claim 1, characterized in that: The first cutter (32), the second cutter (33) and the connecting rod (3) are arranged in an L-shape.

5. The rubber preforming and cutting device according to claim 1, characterized in that: The first cutter (32) has an acute-angled cutting end, and the second cutter (33) has an obtuse-angled cutting end.

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