PVC pipe traction machine
Through the PVC pipe traction machine with multiple traction rollers and bevel gears in the annular structure, the pipe deformation problem caused by the extrusion pressure applied by the traction machine in the prior art is solved, and a smaller deformation area and higher quality effect is achieved. .
Patent Information
- Application Number
- CN202421152029.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing PVC pipe traction machines apply extrusion pressure to the unfinished PVC pipe during the traction process, causing the pipe to deform and affect its appearance accuracy and quality.
A PVC pipe traction machine including a traction roller assembly with an annular structure is designed. The contact between multiple traction rollers around the surface of the PVC pipe is reduced to reduce the pressure at a single contact point, and the continuous traction is achieved through the cooperation of bevel gears and driving gears, reducing deformation. area.
Through multi-point contact and continuous traction structure, the deformation probability and impact of PVC pipes are reduced, and the appearance accuracy and quality of the pipes are improved.
Smart Images
Figure CN222290968U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PVC pipe processing, in particular to a PVC pipe pulling machine. Background Art
[0002] PVC pipes are made of polyvinyl chloride resin, stabilizers, lubricants, etc., and are extruded by hot pressing. They are the earliest plastic pipes to be developed and applied. PVC pipes have strong corrosion resistance, are easy to bond, are low in price, and have a hard texture. Plastic pipes are used for drainage, wastewater, chemicals, heating and cooling liquids, food, ultra-pure liquids, mud, gas, compressed air, and vacuum systems.
[0003] PVC pipes are cooled while being extruded on the production line. If there is no external tensile force on the extruded PVC pipe, it will easily cause bending and deformation. Therefore, it is necessary to set a corresponding traction machine at the output end of the PVC extruder. Through the traction of the traction machine, the PVC pipe is continuously output from the extruder and shaped. The prior art uses a combination of multiple conveyor belts with anti-slip surfaces, so that the transportation direction of the conveyor belt is parallel to the moving direction of the PVC pipe, so that the conveyor belt drives the PVC pipe to be pulled by friction. However, considering that the PVC pipe has just been extruded and formed, although it has also been cooled, its internal temperature is still high, and the overall shape is not completely fixed. When the conveyor belt and the PVC pipe are frictionally pulled by point contact, it is inevitable that they need to be in close contact with the PVC pipe to apply sufficient traction, so the PVC pipe will be squeezed to a certain extent. At this time, the PVC pipe that is not fully shaped may be deformed due to squeezing, affecting its shape accuracy. Ultimately, the quality of the PVC pipe is affected. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a PVC pipe traction machine, which solves the problem in the prior art that the traction machine applies extrusion force to the PVC pipe during the traction process, thereby causing the incompletely formed PVC pipe to deform and affecting its quality.
[0005] According to an embodiment of the utility model, a PVC pipe traction machine includes a bracket, a shell arranged above the bracket and a traction component installed on the shell, the shell is a cylindrical structure with two ends open, the traction component includes a mounting frame, a plurality of traction rollers arranged inside the mounting frame and a driving motor arranged on the mounting frame, the mounting frame is an annular frame structure, the mounting frame is coaxial with the shell and is arranged on the inner edge of the shell, the traction roller is rotatably arranged inside the mounting frame, the rotation axis of the traction roller is parallel to the plane where the mounting frame is located and perpendicular to the radial direction of the mounting frame, the distance from the traction roller to the center of the mounting frame matches the radius of the PVC pipe, all the traction rollers are connected end to end in a chain shape, and are driven and connected to each other in sequence to form a whole, wherein the traction roller at the head end is driven and connected to the motor.
[0006] Furthermore, a plurality of parallel traction components are radially arranged inside the shell.
[0007] Furthermore, a rotating shaft is coaxially fixedly arranged at both ends of the traction roller, a bevel gear is coaxially connected to the outer end of the rotating shaft, and two bevel gears close to one end of two adjacent traction rollers are meshed with each other.
[0008] Furthermore, two connecting frames are arranged inside the mounting frame corresponding to each traction roller, and the connecting frames are arranged respectively corresponding to the two rotating shafts at both ends of the traction roller, so that the rotating shaft passes through the connecting frames and is rotatably mounted on the connecting frames.
[0009] Furthermore, a bearing is provided on the connecting frame, so that the rotating shaft is connected to the bearing.
[0010] Furthermore, the motor is fixedly arranged outside the shell, and the output shaft of the motor is parallel to the plane of the mounting frame and extends through the shell to the inside of the mounting frame, and the output shaft of the motor is exactly located between the two traction rollers at the head end and the tail end. A driving gear is also provided at the end of the motor output shaft, so that the driving gear is meshed with the bevel gear on the traction roller at the head end close to the motor side.
[0011] Furthermore, the outer side of the traction roller is also coated with a flexible buffer layer.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] In the utility model, a plurality of traction rollers are arranged in an annular structure, so that the traction rollers are arranged around the surface of the PVC pipe, so as to contact the surface of the PVC pipe at multiple angles, so that the pressure on the contact point between the traction roller and the PVC pipe is averaged to the plurality of traction rollers, and the pressure at a single contact point is reduced, thereby reducing the probability of deformation of the PVC pipe due to pressure on the PVC pipe; in addition, the more the traction rollers are, the closer the closed structure formed is to a circular ring, that is, the smaller the spacing between adjacent traction rollers is, so that the area where the PVC pipe is deformed when it is under pressure is smaller, the deformation is less obvious, and the impact on the quality of the PVC pipe is also smaller. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the lateral structure of an embodiment of the utility model.
[0015] Figure 2 It is a schematic diagram of the structure of the shell in the embodiment of the utility model.
[0016] Figure 3 It is a front schematic diagram of the shell in the embodiment of the utility model.
[0017] Figure 4 for Figure 3 Enlarged schematic diagram of part A.
[0018] In the above drawings: 1, bracket; 2, housing; 3, mounting frame; 4, traction roller; 5, motor; 31, connecting frame; 32, bearing; 41, rotating shaft; 42, bevel gear; 51, output shaft; 52, driving gear. DETAILED DESCRIPTION
[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0020] like Figure 1 As shown, the embodiment of the utility model provides a PVC pipe traction machine, including a bracket 1, a shell 2 arranged above the bracket 1, and a traction assembly installed on the shell 2. In this embodiment, the shell 2 is a cylindrical structure with two ends open, and the bracket 1 includes four supporting feet and an arc-shaped mounting plate arranged on the top of the supporting feet, so that the shell 2 is just fixedly placed on the surface of the mounting plate.
[0021] like Figure 2 , Figure 3As shown, in this embodiment, the traction assembly includes a mounting frame 3, a plurality of traction rollers 4 arranged inside the mounting frame 3, and a driving motor 5 arranged on the mounting frame 3. Preferably, two parallel traction assemblies are arranged radially inside the housing 2, so that the PVC pipe can be positioned along the axial direction and the traction work can be performed better. The mounting frame 3 is an annular frame structure, the mounting frame 3 is coaxial with the housing 2 and arranged on the inner edge of the housing 2. In this embodiment, the mounting frame 3 is embedded in the housing 2 so that its inner and outer sides are coplanar with the inner and outer edges of the housing 2. The traction roller 4 is rotatably arranged inside the mounting frame 3, and the rotation axis of the traction roller 4 is parallel to the plane where the mounting frame 3 is located and perpendicular to the radial direction of the mounting frame 3. The distance between the traction roller 4 and the center of the mounting frame 3 matches the radius of the PVC pipe, so that the traction roller 4 can just vertically contact the PVC pipe passing through the center of the housing 2. All the traction rollers 4 are connected end to end in a chain shape, and are driven and connected to each other in sequence to form a whole, wherein the traction roller 4 at the head end is driven and connected to the motor 5.
[0022] like Figure 4 As shown, in the preferred solution, the two ends of the traction roller 4 are coaxially fixed with a rotating shaft 41, the outer end of the rotating shaft 41 is coaxially connected with a bevel gear 42, and the two bevel gears 42 on the adjacent traction rollers 4 close to one end are meshed with each other. In this embodiment, preferably, eighteen traction rollers 4 are evenly distributed at equal intervals, and the angle between adjacent traction rollers 4 is 150°, and they are sequentially connected by bevel gears 42 to form a chain structure that rotates simultaneously. Further, two connecting frames 31 are provided inside the mounting frame 3 corresponding to each traction roller 4, and the connecting frames 31 are respectively provided corresponding to the two rotating shafts 41 at the two ends of the traction roller 4, and the connecting frames 31 are provided with bearings 32, so that the rotating shaft 41 passes through the connecting frame 31 and is rotatably mounted on the connecting frame 31 through the bearings 32.
[0023] In this embodiment, the motor 5 is fixedly arranged outside the housing 2, the output shaft 51 of the motor 5 is parallel to the plane where the mounting frame 3 is located and penetrates the housing 2 to extend into the mounting frame 3, and the output shaft 51 of the motor 5 is just located between the two traction rollers 4 at the head end and the tail end, and the end of the output shaft 51 of the motor 5 is also provided with a driving gear 52, so that the driving gear 52 and the bevel gear 42 on the traction roller 4 at the head end close to the motor 5 are meshed with each other. That is, the motor 5 drives the first traction roller 4 at the head end to rotate, and then drives all the traction rollers 4 to rotate synchronously in sequence, and simultaneously pulls the PVC pipe from various angles of the annular surface.
[0024] As a further solution in this embodiment, the outer side of the traction roller 4 is also coated with a flexible buffer layer. Preferably, a flexible silicone material is used, so that when the flexible buffer layer is in close contact with the PVC pipe, it can reduce the pressure on the PVC pipe by deformation and completely adhere to the surface of the PVC pipe, thereby obtaining a stronger friction force and achieving a better traction effect.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A PVC pipe pulling machine, characterized in that: It includes a bracket, a shell arranged above the bracket and a traction component installed on the shell, the shell is a cylindrical structure with two ends open, the traction component includes a mounting frame, a plurality of traction rollers arranged inside the mounting frame and a driving motor arranged on the mounting frame, the mounting frame is an annular frame structure, the mounting frame is coaxial with the shell and arranged on the inner edge of the shell, the traction roller is rotatably arranged inside the mounting frame, the rotation axis of the traction roller is parallel to the plane where the mounting frame is located and perpendicular to the radial direction of the mounting frame, the distance from the traction roller to the center of the mounting frame matches the radius of the PVC pipe, all the traction rollers are connected end to end in a chain shape, and are driven and connected to each other in sequence to form a whole, wherein the traction roller located at the head end is driven and connected to the motor.
2. A PVC pipe pulling machine as claimed in claim 1, characterized in that: A plurality of parallel traction components are radially arranged inside the shell.
3. A PVC pipe pulling machine as claimed in claim 1, characterized in that: Rotating shafts are coaxially fixedly arranged at both ends of the traction rollers, and a bevel gear is coaxially connected to the outer end of the rotating shaft. The two bevel gears close to one end of two adjacent traction rollers are meshed with each other.
4. A PVC pipe pulling machine as claimed in claim 2, characterized in that: Two connecting frames are arranged inside the mounting frame corresponding to each traction roller, and the connecting frames are arranged respectively corresponding to the two rotating shafts at both ends of the traction roller, so that the rotating shaft passes through the connecting frames and is rotatably mounted on the connecting frames.
5. A PVC pipe pulling machine as claimed in claim 4, characterized in that: The connecting frame is provided with a bearing so that the rotating shaft is connected to the bearing.
6. A PVC pipe pulling machine as claimed in claim 1, characterized in that: The motor is fixedly arranged outside the shell, and the output shaft of the motor is parallel to the plane of the mounting frame and extends through the shell to the inside of the mounting frame, and the output shaft of the motor is just located between the two traction rollers at the head end and the tail end. A driving gear is also provided at the end of the motor output shaft, so that the driving gear is meshed with the bevel gear on the traction roller at the head end close to the motor side.
7. A PVC pipe pulling machine as claimed in claim 1, characterized in that: The outer side of the traction roller is also coated with a flexible buffer layer.