Traction device for plastic pipe

Abstract

The utility model discloses a traction device for a plastic pipe, and relates to the technical field of pipe processing. The traction device for the plastic pipe comprises a movable base, the top end of the movable base is provided with a traction structure, an extension plate and a pressing structure, the top end of the extension plate is fixedly provided with a positioning structure, the positioning structure is located on the front side of an input port of the traction structure, and the pressing structure is located above the traction structure. By arranging a positioning structure, a gear rotating rod in a driving box can slide in the direction of a fixed rack, so that two groups of positioning clamps can perform adaptive clamping according to the size of a plastic pipe, and a movable rack is matched to limit the gear rotating rod through a limiting pin, so that the point location of the gear rotating rod can be fixed, and stepless adjustment can be performed; and compared with a comparison scheme, gear limitation caused by arrangement of preset hole positions at intervals is avoided, so that the traction device can adapt to plastic pipes with more sizes, and the universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe processing, in particular to a traction device for plastic pipes. Background Art

[0002] Plastic pipes are chemical building materials made of high-tech composites. Chemical building materials are the fourth largest category of new building materials in contemporary times after steel, wood and cement. Chemical building materials have made great progress and rapid development in my country. As an important component of chemical building materials, plastic pipes are widely accepted by users for their superior performance, hygiene, environmental protection, low consumption and other advantages. The main ones are UPVC drainage pipes, UPVC water supply pipes, aluminum-plastic composite pipes and polyethylene water supply pipes.

[0003] The production process of this plastic pipe requires multiple processing steps, one of which is extrusion from an extruder. During the extrusion process, the diameter and wall thickness of the pipe can be adjusted by changing the traction speed. Therefore, a traction device is required during extrusion to directional pull the injection molded pipe so that it can smoothly enter the receiving rack.

[0004] After searching, it is found that in a pipe pulling device of an extruder with the patent publication number CN220517501 U, it is stated that "the utility model can make the pipe be pulled more stably by setting the clamping plate";

[0005] However, the above scheme still has certain shortcomings in actual use. In this scheme, two relative clamping plates are used to assist in fitting the outer side of the pipe, and then the sliding column and the constraint groove are used to limit the position of the clamping plate to complete the clamping of the pipe. However, this clamping method requires that the respective positions of the sliding column and the constraint groove correspond to each other. When the clamping plate finally stops at a point where the sliding column and the constraint groove cannot correspond to each other, the clamping plate cannot be limited, which greatly reduces the versatility of the device and affects the practicality of the device. Utility Model Content

[0006] The utility model provides a traction device for plastic pipes to solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a traction device for plastic pipes, comprising a mobile base, the top of which is provided with a traction structure, an extension plate and a downward pressing structure, the top of which is fixedly provided with a positioning structure, the positioning structure is located at the front side of the input port of the traction structure, and the downward pressing structure is located above the traction structure;

[0008] The positioning structure includes a driving box, a fixed rack is fixedly installed on the inner wall of the driving box, a movable rack is slidably connected to the inner wall of the driving box, a moving rod is slidably connected to the inner wall of the driving box, the front end of the moving rod is rotatably connected to a gear rotating rod, the other end of the gear rotating rod extends to the outside of the driving box, the bottom end of the gear rotating rod is meshed with the fixed rack, the top end of the moving rod is fixedly connected to a moving floating platform, the top end of the moving floating platform is provided with two positioning clips, and the moving floating platform extends to the top of the driving box.

[0009] Furthermore, the traction structure includes a fixed frame, the bottom end of the fixed frame is fixedly connected to the top end of the movable base, and the inner side of the fixed frame is connected to a conveyor belt through an external motor.

[0010] Furthermore, one end of the movable rack away from the driving box passes through the driving box and is fixedly connected to a pull rod, and the outer side of the driving box is slidably connected to a limit pin.

[0011] Furthermore, the positioning clamp includes a sleeve box, a damping spring rod is arranged inside the sleeve box, a bending rod is arranged at the top end of the damping spring rod, and the top end of the bending rod extends to the outside of the sleeve box.

[0012] Furthermore, the downward pressure structure includes a mounting frame, the inner wall of the mounting frame is rotatably connected to a screw rod via a built-in motor, the surface of the screw rod is threadedly connected to a threaded block, the outer end of the threaded block is fixedly mounted with a lifting frame, the inner wall of the lifting frame is rotatably connected to a conveying roller, and a pressure sensor is arranged on the outer side of the lifting frame.

[0013] Compared with the prior art, the utility model provides a traction device for plastic pipes, which has the following beneficial effects:

[0014] The traction device for plastic pipes is provided with a positioning structure, and the gear rotating rod inside the driving box can slide along the direction of the fixed rack, so that the two sets of positioning clamps can be adapted to clamp according to the size of the plastic pipe, and the movable rack can be used to limit the gear rotating rod through the limit pin, so that the fixed point position of the gear rotating rod can be infinitely adjusted. Compared with the comparative scheme, there is no longer a gear limit caused by the setting of the preset hole position interval, so that the traction device can adapt to plastic pipes of more sizes, thereby improving the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of a mobile base of the utility model;

[0017] Figure 3 This is a schematic diagram of the positioning structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the downward pressing structure of the utility model.

[0019] In the figure: 1. Mobile base; 2. Traction structure; 3. Positioning structure; 301. Drive box; 302. Fixed rack; 303. Mobile rack; 304. Limit pin; 305. Mobile rod; 306. Gear rod; 307. Mobile floating platform; 308. Positioning clamp; 4. Pressing structure; 401. Mounting frame; 402. Screw; 403. Threaded block; 404. Lifting frame; 405. Conveyor roller; 406. Pressure sensor; 5. Epitaxial plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model discloses a traction device for plastic pipes, including a mobile base 1, a traction structure 2, an extension plate 5 and a downward pressing structure 4 are arranged on the top of the mobile base 1, a positioning structure 3 is fixedly installed on the top of the extension plate 5, the positioning structure 3 is located at the front side of the input port of the traction structure 2, and the downward pressing structure 4 is located above the traction structure 2.

[0022] The traction structure 2 comprises a fixed frame, the bottom end of which is fixedly connected to the top end of the movable base 1, and the inner side of the fixed frame is connected to a conveyor belt via an external motor.

[0023] The positioning structure 3 includes a driving box 301, a fixed rack 302 is fixedly installed on the inner wall of the driving box 301, a movable rack 303 is slidably connected to the inner wall of the driving box 301, a movable rod 305 is slidably connected to the inner wall of the driving box 301, the front end of the movable rod 305 is rotatably connected to a gear rod 306, the other end of the gear rod 306 extends to the outside of the driving box 301, the bottom end of the gear rod 306 is meshed with the fixed rack 302, the top of the movable rod 305 is fixedly connected to a movable platform 307, the top of the movable platform 307 is provided with two positioning clamps 308, and the movable platform 307 extends to the top of the driving box 301.

[0024] The downward pressing structure 4 includes a mounting frame 401, the inner wall of which is rotatably connected to a screw rod 402 via a built-in motor, the surface of the screw rod 402 is threadedly connected to a threaded block 403, a lifting frame 404 is fixedly mounted on the outer end of the threaded block 403, the inner wall of the lifting frame 404 is rotatably connected to a conveying roller 405, and a pressure sensor 406 is arranged on the outer side of the lifting frame 404.

[0025] Specifically, one end of the movable rack 303 away from the driving box 301 penetrates the driving box 301 and is fixedly connected to a pull rod, and the outer side of the driving box 301 is slidably connected to a limiting pin 304 .

[0026] In the present embodiment, the movable rack 303 is pulled down by the pull rod, so that the bottom end of the movable rack 303 is gradually meshed with the top end of the gear rod 306, and the limit pin 304 is pulled forward, so that the limit pin 304 limits the pull rod on its inner side, so that the pull rod cannot be adjusted in height at this time, thereby preventing the movable rack 303 from being raised or lowered, so that the movable rack 303 and the fixed rack 302 at this time mesh with the gear rod 306 to clamp the two sets of movable floating platforms 307, so that the overlapping state of the positioning clamp 308 and the plastic pipe is strengthened to be a clamping state.

[0027] Specifically, the positioning clamp 308 includes a sleeve box, a damping spring rod is arranged inside the sleeve box, a bending rod is arranged at the top end of the damping spring rod, and the top end of the bending rod extends to the outside of the sleeve box.

[0028] In this embodiment, the automatic resilience of the damping spring rod can be used to form an elastic connection between the bending rod and the sleeve, so that after the bending rod contacts the outer side of the plastic pipe, the total length between the bending rod and the sleeve changes, so that the damping spring rod is stretched at this time, causing the damping spring rod to exert a certain reaction force on the bending rod, so that the bending rod produces a certain downward clamping force on the plastic pipe, so that the plastic pipe is clamped inside the positioning clamp 308.

[0029] When in use, the power is turned on in advance, and then the plastic pipe is placed between the driving box 301 and the traction structure 2, and then the two sets of gear rods 306 are pulled, so that the gear rods 306 begin to rotate and slide along the fixed rack 302, so that the gear rods 306 drive the mobile floating platform 307 to move through the moving rod 305, and then the two sets of mobile floating platforms 307 are gradually approached, so that the mobile floating platform 307 drives the positioning clamp 308 to gradually complete the overlap operation with the surface of the plastic pipe;

[0030] Then, the movable rack 303 is pulled down by the pull rod, so that the bottom end of the movable rack 303 gradually meshes with the top end of the gear rotating rod 306, and the limit pin 304 is pulled forward, so that the limit pin 304 restricts the pull rod inside, so that the pull rod cannot be adjusted in height at this time, thereby preventing the movable rack 303 from being raised or lowered, so that the movable rack 303 and the fixed rack 302 at this time mesh and clamp the gear rotating rod 306, so that the two sets of movable floating platforms 307 are positioned, so that the overlapping state of the positioning clamp 308 and the plastic pipe is strengthened to be a clamping state;

[0031] Then, the pressing structure 4 is started, so that the built-in motor inside the mounting frame 401 drives the screw rod 402 to rotate, and the rotation of the screw rod 402 drives the lifting frame 404 to adjust the height through the threaded block 403. When the pressure sensor 406 touches the pipe, the pressure sensor 406 alarms, causing the built-in motor to stop working;

[0032] Then, the traction structure 2 is started, so that the external motor drives the conveyor belt to perform transmission motion. At this time, the conveyor belt and the conveyor roller 405 will jointly drive the plastic pipe to perform a guided traction motion between the two sets of positioning clamps 308.

[0033] In summary, the traction device for plastic pipes, by setting a positioning structure 3, can use the gear rod 306 inside the drive box 301 to slide along the direction of the fixed rack 302, so that the two sets of positioning clamps 308 can be adapted and clamped according to the size of the plastic pipe, and then the movable rack 303 can limit the gear rod 306 through the limit pin 304, so that the gear rod 306 can be infinitely adjusted. Compared with the comparative scheme, there is no longer a gear limit caused by the setting of the preset hole spacing, so that the traction device can adapt to plastic pipes of more sizes, thereby improving the versatility of the device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A traction device for plastic pipes, comprising a movable base (1), characterized in that: The top of the mobile base (1) is provided with a traction structure (2), an extension plate (5) and a downward pressing structure (4); the top of the extension plate (5) is fixedly mounted with a positioning structure (3); the positioning structure (3) is located at the front side of the input port of the traction structure (2); and the downward pressing structure (4) is located above the traction structure (2); The positioning structure (3) comprises a driving box (301), a fixed rack (302) is fixedly installed on the inner wall of the driving box (301), a movable rack (303) is slidably connected to the inner wall of the driving box (301), a movable rod (305) is slidably connected to the inner wall of the driving box (301), a front end of the movable rod (305) is rotatably connected to a gear rotating rod (306), the other end of the gear rotating rod (306) extends to the outside of the driving box (301), the bottom end of the gear rotating rod (306) is meshed with the fixed rack (302), the top end of the movable rod (305) is fixedly connected to a movable floating platform (307), the top end of the movable floating platform (307) is provided with two positioning clamps (308), and the movable floating platform (307) extends to the top of the driving box (301).

2. A traction device for plastic pipes according to claim 1, characterized in that: The traction structure (2) comprises a fixed frame, the bottom end of which is fixedly connected to the top end of the movable base (1), and the inner side of the fixed frame is connected to a conveyor belt via an external motor.

3. A traction device for plastic pipes according to claim 1, characterized in that: One end of the movable rack (303) away from the driving box (301) passes through the driving box (301) and is fixedly connected to a pull rod, and the outer side of the driving box (301) is slidably connected to a limit pin (304).

4. A traction device for plastic pipes according to claim 1, characterized in that: The positioning clamp (308) comprises a sleeve box, a damping spring rod is arranged inside the sleeve box, a bending rod is arranged at the top end of the damping spring rod, and the top end of the bending rod extends to the outside of the sleeve box.

5. A traction device for plastic pipes according to claim 1, characterized in that: The downward pressing structure (4) comprises a mounting frame (401), the inner wall of the mounting frame (401) is rotatably connected to a screw rod (402) via a built-in motor, the surface of the screw rod (402) is threadedly connected to a thread block (403), a lifting frame (404) is fixedly mounted on the outer end of the thread block (403), the inner wall of the lifting frame (404) is rotatably connected to a conveying roller (405), and a pressure sensor (406) is arranged on the outer side of the lifting frame (404).

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