A traction system

Abstract

The utility model relates to PE pipe production technical field, and disclose a kind of traction system, including mounting ring, the periphery of mounting ring is annular array and is equipped with multiple movable pressure components that can synchronous radial telescopic;Adjusting assembly, the adjusting assembly and all movable pressure components drive connection, for driving multiple movable pressure components along radial synchronous telescopic, to adapt to different specifications of traction pipe fitting, movable pressure component includes movable rod, the mounting ring is annular array and is opened with movable rod one-to-one corresponding through hole;The adjusting assembly of the utility model is cooperated with mounting column by threaded rod, drives multiple movable pressure components along radial synchronous telescopic, can quickly adapt to the PE pipe or other pipe fittings of different inner diameter, need not to replace hardware to adapt to diversified product demand, reduce the time cost of equipment downtime replacement component, especially suitable for the batch production scene of multiple specifications pipe fittings, significantly improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of PE pipe production technology, and in particular to a traction system. Background Technology

[0002] In existing technologies, the production process of large-diameter PE pipes covers multiple key stages, including raw material preparation, extrusion molding, cooling and shaping, traction, and cutting. Among these, the traction stage plays a crucial role in the entire production process. Due to its weight, after production, holes are usually drilled at the ends of the PE pipes for traction by steel wire ropes. However, the steel wire ropes often damage the holes in the pipes, failing to provide proper traction and causing machine downtime, or causing the ends of the pipes to stretch and deform, seriously affecting the production quality of the pipes. Utility Model Content

[0003] This utility model proposes a traction system to solve the problem that existing steel wire rope traction systems have defects such as the steel wire rope easily damaging the pipe hole or stretching and deforming the pipe end, affecting production quality.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a traction system, comprising:

[0005] The mounting ring has multiple movable pressure members that can be synchronously radially extended and retracted arranged in a ring array around its periphery;

[0006] An adjustment assembly, which is connected to all the movable pressure members, is used to drive the multiple movable pressure members to extend and retract synchronously in the radial direction to adapt to traction pipes of different specifications.

[0007] Preferably, the movable pressure member includes:

[0008] The movable rod has a ring-shaped array of through holes corresponding to each movable rod. The movable rod passes through the corresponding through hole and slides along its axial direction.

[0009] A pressure plate, fixed to the outer end of the movable rod, is used to press against the traction tube.

[0010] Preferably, a limiting strip is fixed to the outer wall of the movable rod along its length, and a first limiting groove adapted to the limiting strip is provided on the inner wall of the through hole, and the limiting strip slides into the first limiting groove.

[0011] Preferably, a spring is connected between the pressure plate and the mounting ring.

[0012] Preferably, the adjustment component includes:

[0013] A horizontal bar is fixed to one side of the mounting ring;

[0014] A threaded rod, screwed through the crossbar, with one end extending to the inside of the mounting ring;

[0015] The mounting post is rotatably connected to the inner end of the horizontal bar, and multiple pushing plates are fixed in a ring array on the outer circumference of the mounting post. The inner end of the movable rod is provided with a pressing slope.

[0016] Preferably, the mounting column has an axial through groove, the inner side wall of the through groove has a second limiting groove, the outer wall of the threaded rod is fixed with a limiting block near the inner end, the limiting block is slidably engaged with the second limiting groove, and a pull ring is installed at the end of the threaded rod away from the limiting block.

[0017] Preferably, the pressing surface of the tablet is provided with an anti-slip layer.

[0018] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0019] (1) The adjustment component drives multiple movable pressure parts to expand and contract synchronously in the radial direction through the cooperation of the threaded rod and the mounting column. It can quickly adapt to PE pipes or other pipe fittings with different inner diameters. It can adapt to diverse product needs without replacing hardware, reducing the time cost of equipment downtime to replace parts. It is especially suitable for mass production scenarios of multi-specification pipe fittings, significantly improving production efficiency.

[0020] (2) Multiple movable pressure components are arranged in a ring array to form symmetrical pressure. No matter how the pipe specifications change, the pipe end can be adjusted to ensure uniform force and avoid deformation caused by eccentric traction.

[0021] (3) The limiting strip of the movable rod slides into the first limiting groove of the through hole to prevent the movable rod from rotating or tilting; the limiting block of the threaded rod cooperates with the second limiting groove of the mounting column to avoid relative rotation and improve the reliability of adjustment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a front view of the present invention;

[0025] Figure 3 This is a schematic diagram of the mounting ring structure of this utility model;

[0026] Figure 4 This is a structural schematic diagram of the combined state of the threaded rod and the mounting column of this utility model;

[0027] Figure 5 This is a structural diagram of the threaded rod and mounting post of this utility model in their disassembled state;

[0028] Figure 6 This is a cross-sectional structural diagram of the mounting column of this utility model;

[0029] In the diagram: 1. Mounting ring; 101. Through hole; 102. First limiting groove; 2. Movable pressing component; 21. Movable rod; 211. Extrusion slope; 212. Limiting strip; 22. Pressure plate; 3. Adjustment assembly; 31. Horizontal bar; 32. Threaded rod; 33. Mounting column; 34. Pushing plate; 35. Pull ring; 36. Limiting block; 37. Through groove; 38. Second limiting groove; 4. Spring; 5. Anti-slip layer. Detailed Implementation

[0030] 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.

[0031] like Figures 1-6 As shown, a traction system includes a mounting ring 1 and an adjusting assembly 3. Multiple thickened columns are fixed in a ring array on the mounting ring 1. Multiple movable pressure members 2 that can be synchronously extended and retracted radially are arranged in a ring array around the periphery of the mounting ring 1. The adjusting assembly 3 is connected to all the movable pressure members 2 for driving the multiple movable pressure members 2 to extend and retract synchronously radially to adapt to different specifications of traction pipes. The traction pipes include PE pipes or other types of pipes.

[0032] Among them, see Figures 2-3 As shown, the movable pressure component 2 includes:

[0033] The movable rod 21 has a ring-shaped array of through holes 101 corresponding to each other on the mounting ring 1. The movable rod 21 passes through the corresponding through hole 101 and slides along its axial direction.

[0034] The pressure plate 22, fixed to the outer end of the movable rod 21, is used to press against the traction pipe fitting. The pressure plate 22 is preferably made of high-temperature resistant rubber material, specifically modified silicone rubber. In addition to high temperature resistance, it also has good flexibility and wear resistance. The flexibility allows the pressure plate 22 to adapt to a certain degree of deformation according to the inner wall curvature of the object when pressing against the traction pipe fitting, thereby increasing the contact area and making the pressure distribution more uniform, avoiding local excessive squeezing damage to the traction pipe fitting. The wear resistance ensures that the pressure plate 22 will not wear out quickly due to frequent pressing and friction during long-term use, extending the service life of the pressure plate 22, reducing the maintenance cost of the equipment, and has a certain curvature. In addition, an anti-slip layer 5 is provided on the pressing surface of the pressure plate 22, specifically a self-anti-slip protrusion, which increases the friction when squeezing the PE pipe fitting to be pulled from the inside.

[0035] A spring 4 is connected between the pressure plate 22 and the mounting ring 1. The spring 4 can be sleeved on the outside of the movable rod 21 or not. The spring 4 facilitates the quick reset of the movable rod 21 after it extends outward.

[0036] A limiting strip 212 is fixed to the outer wall of the movable rod 21 along its length. A first limiting groove 102 adapted to the limiting strip 212 is provided on the inner wall of the through hole 101. The limiting strip 212 slides in conjunction with the first limiting groove 102. When the movable rod 21 moves along the through hole 101, the limiting strip 212 slides linearly along the first limiting groove 102, which can prevent the movable rod 21 from rotating or tilting.

[0037] See Figure 2 as well as Figures 4-6 As shown, adjustment component 3 includes:

[0038] A horizontal bar 31 is fixed to one side of the mounting ring 1. The horizontal bar 31 can be made of high-strength aluminum alloy profile and is rigidly connected to the outer wall of the mounting ring 1 by countersunk bolts.

[0039] Threaded rod 32, screwed into through bar 31, one end of which extends to the inside of mounting ring 1;

[0040] Mounting post 33 is rotatably connected to the inner end of crossbar 31, and multiple pushing plates 34 are fixed in a ring array on the outer circumference of mounting post 33. The inner end of movable rod 21 is provided with extrusion slope 211. The contact design between pushing plate 34 and extrusion slope 211 on movable rod 21 converts the axial movement of threaded rod 32 into the radial movement of movable rod 21.

[0041] The mounting column 33 has an axial through groove 37, and the inner side wall of the through groove 37 has a second limiting groove 38. The outer wall of the threaded rod 32 is fixed with a limiting block 36 near the inner end. The limiting block 36 is slidably engaged with the second limiting groove 38. A pull ring 35 is installed at the end of the threaded rod 32 away from the limiting block 36. The sliding engagement design between the limiting block 36 and the second limiting groove 38 effectively prevents relative rotation between the threaded rod 32 and the mounting column 33, improving the reliability of adjustment. The pull ring 35 allows the operator to quickly adjust by manually rotating it. During traction, a traction structure (including traction rope, traction chain, traction rod, etc.) can be connected to the pull ring 35. The other end can be connected to traction equipment, such as a traction winch or traction tractor, to achieve traction of the PE pipe fittings after production. The above-mentioned traction structure and traction equipment are existing technologies, and the specific structure and principle will not be described in detail here.

[0042] The adjustment component 3 drives multiple movable pressure-blocking parts 2 to move radially in sync, which can quickly adapt to PE pipes or other pipe fittings with different inner diameters without replacing hardware, thus improving the versatility of the production line. Secondly, while the adjustment speed is fast, the adjustment range of each movable pressure-blocking part 2 is consistent, which improves the uniformity of force on the end of the pipe fitting to be pulled, enhances the compatibility of the production line with diversified products, and reduces the time cost of equipment downtime to replace parts. It is especially suitable for batch production scenarios of multi-specification pipe fittings, significantly improving production efficiency. In addition, the uniform pressure distribution and reliable friction ensure that the pipe fitting does not slip or deviate during the traction process. Combined with the production line guide wheels and other structures, it achieves continuous and stable traction, improving the yield rate.

[0043] In addition, the aforementioned movable pressure members 2 are preferably arranged in a ring array of six.

[0044] As described above, in actual use, the traction component is installed on the pipe fitting production line. After the produced pipe fittings come out of the forming equipment, the traction component can be inserted into the interior of the end of the pipe fitting to be pulled. Then, the threaded rod 32 is rotated to move the movable rod 21 outward, so that the pressure plate 22 with anti-slip layer 5 is used to press against the inner wall of the pipe fitting to be pulled. Multiple pressure plates 22 form a symmetrical pressing structure. No matter how the pipe fitting specifications change, uniform force can be achieved by adjustment, avoiding pipe fitting deformation caused by eccentric traction. Then, the traction equipment is connected for traction, which can effectively achieve stable traction of the pipe fitting and improve quality.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A traction system, characterized in that, include: Mounting ring (1), the periphery of which is arranged in a ring array with multiple movable pressure members (2) that can be synchronously radially extended and retracted. Adjustment component (3), which is connected to all the movable pressure members (2) for driving multiple movable pressure members (2) to extend and retract synchronously in the radial direction to adapt to different specifications of traction pipes.

2. The traction system according to claim 1, characterized in that: The movable pressure member (2) includes: The movable rod (21) has through holes (101) arranged in a ring array on the mounting ring (1) that correspond one-to-one with the movable rod (21). The movable rod (21) passes through the corresponding through holes (101) and slides along its axial direction. The pressure plate (22) is fixed to the outer end of the movable rod (21) and is used to press against the traction pipe.

3. A traction system according to claim 2, characterized in that: The outer wall of the movable rod (21) is fixed with a limiting strip (212) along the length direction. The inner wall of the through hole (101) is provided with a first limiting groove (102) that is adapted to the limiting strip (212). The limiting strip (212) slides in the first limiting groove (102).

4. A traction system according to claim 2, characterized in that: A spring (4) is connected between the pressure plate (22) and the mounting ring (1).

5. A traction system according to claim 2, characterized in that: The adjustment component (3) includes: A horizontal bar (31) is fixed to one side of the mounting ring (1); A threaded rod (32) is screwed through the crossbar (31), with one end extending to the inside of the mounting ring (1); The mounting post (33) is rotatably connected to the inner end of the crossbar (31), and multiple pushing plates (34) are fixed in a ring array on the outer circumference of the mounting post (33). The inner end of the movable rod (21) is provided with a pressing slope (211).

6. A traction system according to claim 5, characterized in that: The mounting post (33) has an axial through groove (37), and the inner side wall of the through groove (37) has a second limiting groove (38). A limiting block (36) is fixed on the outer wall of the threaded rod (32) near the inner end. The limiting block (36) slides with the second limiting groove (38). A pull ring (35) is installed on the end of the threaded rod (32) away from the limiting block (36).

7. A traction system according to claim 2, characterized in that: The pressing surface of the tablet (22) is provided with an anti-slip layer (5).

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