Tractor for plastic profile

Abstract

The utility model discloses a dragger for plastic profiles, which belongs to the technical field of plastic processing and comprises a shell and a base, an upper traction arm and a lower traction arm are respectively arranged in the shell in a sliding manner, an air cylinder is mounted at the top of the shell, an output end of the air cylinder is fixedly connected with a push rod which is coaxially arranged, and the push rod is fixedly connected with the base. The bottom end of the push rod is fixedly connected with the upper traction arm, a limiting mechanism is arranged in the shell and comprises a limiting worm, the limiting worm is rotationally installed in the shell, a limiting worm wheel is rotationally installed in the shell, the limiting worm wheel is connected with the limiting worm in a meshed mode, and the limiting worm wheel is fixedly connected with the upper traction arm. A lifting mechanism is arranged in the shell, the lifting mechanism comprises a jacking worm, the jacking worm is rotationally installed in the shell, a rotating turbine is rotationally installed in the shell, and the effects of adapting to diversified profiles and facilitating adjustment are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic processing, and specifically to a traction machine for plastic profiles. BACKGROUND

[0002] Currently, the traction machine for plastic profiles is used to smoothly pull forward the thermoplastic profile coming out of the extruder and give appropriate cooling in the process. The size and shape of the plastic profile are diversified, and the traction machine needs to be able to flexibly adapt to profiles of different heights, widths and shapes to ensure smooth production process and stable product quality.

[0003] As the patent with publication number CN102310543A specifically discloses a traction machine track frame for plastic profiles, through the rack, lever mechanism, upper track frame and automatic balancing device containing components such as connecting plate, shaft, pull rod, support, butterfly spring and nut, automatic balancing adjustment of the traction machine track frame for plastic profiles is realized. However, the upper track frame in the patent can move up and down through the lever mechanism, but the lower traction arm lacks a corresponding adjustment mechanism, which leads to the fact that the traction distance cannot be fine-tuned according to the profile specifications, and the excessive traction force in production leads to briquetting products, affecting product quality and production efficiency.

[0004] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background technology of the present application concept, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0005] Based on the above problems existing in the prior art, the present application aims to provide a traction machine for plastic profiles to achieve the effects of adapting to diversified profiles and facilitating adjustment.

[0006] In order to solve the above technical problems, the technical scheme of the present application is as follows: a traction machine for plastic profiles, comprising a shell and a base, the inside of the shell is respectively slidably provided with an upper traction arm and a lower traction arm, the top of the shell is provided with a gas cylinder, the output end of the gas cylinder is fixedly connected with a push rod arranged coaxially, the bottom end of the push rod is fixedly connected with the upper traction arm;

[0007] A limiting mechanism is arranged in the inside of the shell, the limiting mechanism comprises a limiting worm, the limiting worm is rotatably installed in the inside of the shell, a limiting worm wheel is rotatably installed in the inside of the shell, and the limiting worm wheel is meshingly connected with the limiting worm;

[0008] A lifting mechanism is arranged in the inside of the shell, the lifting mechanism comprises a jacking worm, the jacking worm is rotatably installed in the inside of the shell, a rotating worm wheel is rotatably installed in the inside of the shell, the rotating worm wheel is meshingly connected with the jacking worm, and a rotating lead screw is fixedly nested in the inside of the jacking worm.

[0009] Further, the inside of the limiting worm gear is connected with a limiting lead screw through a lead screw nut, the limiting lead screw is slidingly arranged in the inside of the shell, the top end of the limiting lead screw is fixedly connected with a top block, one side of the upper traction arm is fixedly provided with a jacking rod, and the bottom of the jacking rod and the top of the top block abut each other.

[0010] Further, one side of the lower traction arm is fixedly connected with a moving block, and the moving block is threadedly connected with the rotating lead screw.

[0011] Further, a transverse moving lead screw is rotatably arranged in the inside of the shell, a nut is connected to the transverse moving lead screw, the bottom wall of the nut is fixedly connected with a connecting block, and the connecting block is slidingly connected in the inside of the shell.

[0012] Further, the top of the base is fixedly provided with two symmetrically arranged sliding rails, the bottom of the shell is fixedly connected with two symmetrically arranged sliding blocks, the sliding blocks are slidingly sleeved on the sliding rails, and the bottom of the connecting block is fixedly connected with the top of the base.

[0013] Further, the shell is provided with an inlet on one side, and the shell is provided with an outlet on the side away from the outlet.

[0014] The beneficial effects of the present application are that: through the transverse moving lead screw and the limiting lead screw and the like, when in use, the operator first aligns the outlet with the extruder by rotating the rotating wheel at one end of the transverse moving lead screw, then drives the upper traction arm to the working position by the air cylinder, and adjusts the position of the lower traction arm to the appropriate position by the cooperation of the jacking worm and the rotating lead screw, so that the fine adjustment is realized, in addition, during the traction process, if the product is pressed too much, the position of the upper traction arm can be fine adjusted by rotating the limiting worm, using the limiting lead screw and the top block driven by the limiting worm, so that the deformation or fragmentation of the product is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0016] Fig. 1 It is a schematic diagram of the overall structure of the present application;

[0017] Fig. 2 It is another perspective view of the overall structure of the present application;

[0018] Fig. 3 It is a schematic diagram of the internal structure of the present application.

[0019] In the figure: 1, the shell; 2, cylinder; 3, upper traction arm; 4, lower traction arm; 5, inlet; 6, rotating lead screw; 7, lifting worm; 8, moving block; 9, limiting lead screw; 10, jacks; 11, horizontal moving lead screw; 12, connecting block; 13, sliding block; 14, slide rail; 15, nut; 16, limiting worm; 17, push rod; 18, base; 19, limiting worm gear; 20, discharge port. DETAILED DESCRIPTION

[0020] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further explained in detail.

[0021] As Figs. 1-3 The application provides a traction machine for plastic profiles, which comprises a shell 1 and a base 18, the inside of the shell 1 is slidably provided with an upper traction arm 3 and a lower traction arm 4 respectively, the top of the shell 1 is provided with a cylinder 2, the output end of the cylinder 2 is fixedly connected with a coaxially arranged push rod 17, the bottom end of the push rod 17 is fixedly connected with the upper traction arm 3, the inside of the shell 1 is provided with a limiting mechanism, the limiting mechanism comprises a limiting worm 16, the limiting worm 16 is rotatably installed in the inside of the shell 1, a limiting worm gear 19 is rotatably installed in the inside of the shell 1, the limiting worm gear 19 is in meshing connection with the limiting worm 16, the inside of the shell 1 is provided with a lifting mechanism, the lifting mechanism comprises a lifting worm 7, the lifting worm 7 is rotatably installed in the inside of the shell 1, a rotating worm gear is rotatably installed in the inside of the shell 1, the rotating worm gear is in meshing connection with the lifting worm 7, the inside of the lifting worm 7 is fixedly nested with a rotating lead screw 6.

[0022] As Figs. 1-3 The inside of the limiting worm gear 19 is connected with a limiting lead screw 9 through a lead screw nut 15, the limiting lead screw 9 is slidably arranged in the inside of the shell 1, the top end of the limiting lead screw 9 is fixedly connected with a top block, one side of the upper traction arm 3 is fixedly provided with a jacking rod 10, the bottom of the jacking rod 10 and the top of the top block abut each other.

[0023] As Figs. 1-3 One side of the lower traction arm 4 is fixedly connected with a moving block 8, the moving block 8 is in threaded connection with the rotating lead screw 6, a horizontal moving lead screw 11 is rotatably installed in the inside of the shell 1, the horizontal moving lead screw 11 is connected with a nut 15, the bottom wall of the nut 15 is fixedly connected with a connecting block 12, the connecting block 12 is slidably connected in the inside of the shell 1, the top of the base 18 is fixedly provided with two symmetrically arranged slide rails 14, the bottom of the shell 1 is fixedly connected with two symmetrically arranged sliding blocks 13, the sliding blocks 13 are slidably sleeved on the slide rails 14, the bottom of the connecting block 12 is fixedly connected with the top of the base 18, the shell 1 is provided with an inlet 5 on one side, and the shell 1 is provided with a discharge port 20 on the side away from the discharge port 20.

[0024] The working principle of the utility model is as follows: when the plastic profile traction machine is used, firstly the position of the shell 1 needs to be adjusted, and the feeding inlet 5 is aligned with the upstream extruder, specifically, the rotating wheel at one end of the transverse lead screw 11 is rotated, the rotating wheel drives the transverse lead screw 11 to rotate, because the nut 15 is fixedly connected with the base 18 through the connecting block 12, the shell 1 slides left and right along the axis direction of the slide rail 14, thereby realizing the left and right adjustment of the discharge port 20 position, and the flexibility of the equipment is enhanced;

[0025] When the profile is successfully fed into the traction machine from the feeding inlet 5, the operator starts the air cylinder 2, the air cylinder 2 drives the upper traction arm 3 to slide downwards through the push rod 17, until the upper traction arm 3 reaches the predetermined working position, if the traction distance between the upper traction arm 3 and the lower traction arm 4 needs to be further adjusted at this time, the operator rotates the rotating wheel at one end of the jacking worm 7, the rotation of the jacking worm 7 drives the jacking worm wheel and the rotating lead screw 6 to rotate together, at this time, the moving block 8 which is threadedly connected with the rotating lead screw 6 drives the lower traction arm 4 to move upwards, until the traction distance meets the requirements, realizing that the traction machine can quickly adapt to profiles of different heights and widths;

[0026] In addition, during the traction process, if the product is damaged due to too small traction distance and too large pressure, at this time, the rotating wheel at one end of the limiting worm 16 is rotated, the limiting worm 16 is rotated and drives the limiting worm wheel 19 which is meshingly connected with the limiting worm 16, the limiting worm wheel 19 further drives the limiting lead screw 9 to slide upwards, the top block at the top end of the limiting lead screw 9 drives the jacking rod 10 to be jacked upwards, thereby driving the upper traction arm 3 to move upwards, realizing the fine adjustment of the traction distance, and avoiding the problems that the product is deformed or broken due to too large pressure.

[0027] The above specific embodiments further specifically describe the technical problems, technical schemes and beneficial effects solved by the utility model, and it should be understood that the above description is only for specific embodiments of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pulling machine for plastic profiles, characterized in that, Including shell (1) and base (18), the inside of shell (1) is slidably provided with upper traction arm (3) and lower traction arm (4) respectively, the top of shell (1) is provided with cylinder (2), the output end of cylinder (2) is fixedly connected with coaxially arranged push rod (17), the bottom end of push rod (17) is fixedly connected with upper traction arm (3); The inside of shell (1) is provided with a limiting mechanism, the limiting mechanism comprises a limiting worm (16), the limiting worm (16) is rotatably installed in the inside of the shell (1), a limiting worm wheel (19) is rotatably installed in the inside of the shell (1), and the limiting worm wheel (19) is in meshing connection with the limiting worm (16); The inside of shell (1) is provided with a lifting mechanism, the lifting mechanism comprises a jacking worm (7), the jacking worm (7) is rotatably installed in the inside of the shell (1), a rotating turbine is rotatably installed in the inside of the shell (1), the rotating turbine is in meshing connection with the jacking worm (7), and the inside of the jacking worm (7) is fixedly nested with a rotating lead screw (6).

2. A plastic profile tractor according to claim 1, characterized in that: The inside of the limiting worm wheel (19) is connected with a limiting lead screw (9) through a lead screw nut (15), the limiting lead screw (9) is slidably arranged in the inside of the shell (1), the top end of the limiting lead screw (9) is fixedly connected with a top block, one side of the upper traction arm (3) is fixedly provided with a jacking rod (10), and the bottom of the jacking rod (10) abuts against the top of the top block.

3. A plastic profile tractor according to claim 2, characterized in that: One side of the lower traction arm (4) is fixedly connected with a moving block (8), and the moving block (8) is in threaded connection with the rotating lead screw (6).

4. A plastic profile tractor according to claim 3, characterized in that: A horizontal moving lead screw (11) is rotatably installed in the inside of the shell (1), the horizontal moving lead screw (11) is connected with a nut (15), the bottom wall of the nut (15) is fixedly connected with a connecting block (12), and the connecting block (12) is slidably connected in the inside of the shell (1).

5. A plastic profile tractor according to claim 4, characterized in that: The top of the base (18) is fixedly provided with two symmetrically arranged slide rails (14), the bottom of the shell (1) is fixedly connected with two symmetrically arranged slide blocks (13), the slide blocks (13) are slidably sleeved on the slide rails (14), and the bottom of the connecting block (12) is fixedly connected with the top of the base (18).

6. A plastic profile tractor according to claim 5, characterized in that: One side of the shell (1) is provided with a feeding port (5), and the side, away from the discharging port (20), of the shell (1) is provided with a discharging port (20).

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