Large-pipe-diameter PE plastic pipe extrusion molding traction device

Abstract

The utility model discloses a traction device for extrusion molding of a large-pipe-diameter PE plastic pipe. The traction device comprises an adjusting mechanism, the adjusting mechanism comprises a positioning ring, a gear ring and a driving mechanism, a positioning mechanism is arranged on the surface of the adjusting mechanism, the positioning mechanism comprises a clamping sleeve and a stroke plate, the stroke plate is inserted into the clamping sleeve in a sliding mode, and the surface of the stroke plate is meshed with the surface of the gear ring; a traction mechanism is arranged at one end of each positioning mechanism, each traction mechanism comprises a double-shaft motor, a driving roller and a screw rod, a transmission mechanism is connected between each double-shaft motor and the corresponding driving roller, a plurality of elastic pieces are arranged in each driving roller, sliding sleeves are symmetrically arranged on the surfaces of the screw rods, and push plates are connected to the surfaces of the sliding sleeves. The traction device can be suitable for traction operation of plastic pipes with different pipe diameters, the surface radian of the driving roller can be flexibly adjusted according to the surface radian of the plastic pipes, and the problem that the surfaces of the pipes deform due to the fact that traction driving force is too large is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe processing technology, specifically to a traction device for extrusion molding of large-diameter PE plastic pipes. Background Technology

[0002] In the field of plastic pipe processing, most plastic pipes are produced continuously by extrusion molding. During the extrusion molding process, a traction mechanism is also required to move the pipe, so as to cooperate with the extrusion mechanism to form a continuous pipe production line.

[0003] During the pipe extrusion process, the freshly extruded pipe is at a high temperature and needs to be cooled and shaped by water cooling before it can be connected to the traction mechanism. For large-diameter plastic pipes, although they have undergone cooling and shaping, due to their large inner diameter and the residual heat inside, there is still a possibility of deformation. The contact surface between the traction mechanism and the pipe cannot fully cover the outer surface of the pipe, which can easily cause deformation of large-diameter pipes, thus affecting the forming effect.

[0004] Secondly, most existing pipe traction equipment uses conveyor belts or rollers for driving. The contact area between the traction mechanism and the pipe is small, making it impossible to accurately match the curvature of the pipe surface. Applying additional clamping force will put greater pressure on the pipe surface. If residual heat remains inside the pipe, it will cause pipe deformation. If the extrusion force is too small, slippage will occur between the traction mechanism and the pipe, affecting actual pipe production. Therefore, existing equipment cannot flexibly adapt to the curvature of the pipe surface for traction mechanisms, which will lead to pipe deformation and affect the quality of pipe production. Summary of the Invention

[0005] The purpose of this invention is to provide a traction device for extrusion molding of large-diameter PE plastic pipes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a traction device for extrusion molding of large-diameter PE plastic pipes, including an adjustment mechanism;

[0007] The adjustment mechanism includes a positioning ring, a gear ring, and multiple drive mechanisms. The gear ring is rotatably installed inside the positioning ring, and the output end of each drive mechanism meshes with the surface of the gear ring.

[0008] The adjustment mechanism is provided with multiple positioning mechanisms on its surface. Each positioning mechanism includes a sleeve and a travel plate. The travel plate is slidably inserted into the sleeve, and the surface of the travel plate meshes with the surface of the gear ring.

[0009] Each positioning mechanism is provided with a traction mechanism at one end. Each traction mechanism includes a dual-axis motor, a drive roller, and a screw. Each dual-axis motor is connected to each drive roller by a transmission mechanism. Each drive roller has multiple spring pieces inside. Each drive roller has multiple sliding grooves on its inner wall. Each screw has a sliding sleeve symmetrically arranged on its surface, and a push plate is connected to the surface of the sliding sleeve. The screw surface rotates and meshes with the inner wall of the sliding sleeve, and the thread directions of the two ends of the screw are opposite.

[0010] Preferably, the surface of the adjustment mechanism is provided with a connecting member.

[0011] Preferably, the plurality of drive mechanisms are symmetrically distributed about the surface of the adjustment mechanism, and each drive mechanism is a servo motor.

[0012] Preferably, each of the ferrules has a plurality of bolts rotatably inserted into its surface.

[0013] Preferably, the sliding sleeves are all slidably installed inside the sliding groove, and the push plates are all located inside the spring piece.

[0014] Preferably, the surfaces of the plurality of spring sheets are arc-shaped, and the surfaces of the plurality of drive rollers are provided with sleeves, with the inner wall of the sleeves fitting against the surfaces of the spring sheets, and the sleeves are designed to be made of elastic material.

[0015] Preferably, the transmission mechanism is a belt.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model achieves the effect of being applicable to plastic pipes of different diameters by setting an adjustment mechanism and a positioning mechanism. The drive mechanism can drive the gear ring to rotate, and the gear ring can simultaneously drive multiple positioning mechanisms to move, thereby achieving a self-centering effect, which is more conducive to pipe forming and continuous production.

[0018] 2. This utility model achieves the effect of adjusting the surface curvature of the traction mechanism by setting up a spring and a push plate. By adjusting the surface curvature of the traction mechanism, the surface of the traction mechanism can be more closely fitted to the surface of the pipe being pulled, which not only increases the traction force, but also effectively ensures the uniformity of force on the surface of the traction mechanism and the pipe, and effectively avoids the problem of deformation of the pipe surface caused by the traction mechanism. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structural appearance of this utility model;

[0020] Figure 2 This is a schematic diagram of the rear view structure of the present utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the parts of this utility model;

[0022] Figure 4 This is an exploded view of the traction mechanism component of this utility model;

[0023] Figure 5 This is a partial main sectional view of the adjustment mechanism of this utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the drive roller of this utility model;

[0025] Figure 7 This is an exploded view of the internal components of the drive roller of this utility model.

[0026] Figure 8 This is a side sectional view of the drive roller structure of this utility model.

[0027] In the picture:

[0028] 100. Adjustment mechanism; 110. Positioning ring; 120. Gear ring; 130. Drive mechanism;

[0029] 200. Positioning mechanism; 210. Card sleeve; 220. Travel plate;

[0030] 300. Traction mechanism; 310. Dual-shaft motor; 320. Drive roller; 321. Spring; 322. Slide groove; 330. Screw; 331. Push plate; 332. Sliding sleeve; 340. Sleeve; 350. Transmission mechanism;

[0031] 400. Connectors. Detailed Implementation

[0032] 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.

[0033] Please see Figures 1 to 8 One embodiment of this utility model is a traction device for extrusion molding of large-diameter PE plastic pipes, including an adjustment mechanism 100, and a connector 400 is provided on the surface of the adjustment mechanism 100.

[0034] The adjustment mechanism 100 includes a positioning ring 110, a gear ring 120, and multiple drive mechanisms 130. The gear ring 120 is rotatably mounted inside the positioning ring 110. The output end of each drive mechanism 130 meshes with the surface of the gear ring 120. The multiple drive mechanisms 130 are symmetrically distributed about the surface of the adjustment mechanism 100, and each drive mechanism 130 is a servo motor.

[0035] The adjusting mechanism 100 has multiple positioning mechanisms 200 on its surface. Each positioning mechanism 200 includes a retainer 210 and a travel plate 220. Multiple bolts are rotatably inserted into the surface of each retainer 210, and the travel plates 220 are slidably inserted into the inside of the retainer 210. The surface of the travel plate 220 meshes with the surface of the gear ring 120. Depending on the diameter of the pipe being produced, the gear ring 120 can be rotated by the driving mechanism 130. The gear ring 120 synchronously drives the travel plates 220 in the multiple positioning mechanisms 200 to move, thereby achieving the effect of synchronously adjusting the movement of multiple traction mechanisms 300. This allows the surface of the traction pipe to be clamped synchronously, keeping the pipe axis aligned with the axis of the adjusting mechanism 100.

[0036] Each positioning mechanism 200 is provided with a traction mechanism 300 at one end. Each traction mechanism 300 includes a dual-axis motor 310, a drive roller 320 and a screw 330. Each dual-axis motor 310 and each drive roller 320 are connected by a transmission mechanism 350, which is a belt.

[0037] Each drive roller 320 has multiple spring pieces 321 inside, and multiple sliding grooves 322 are opened on the inner wall of each drive roller 320. Each screw 330 has a sliding sleeve 332 symmetrically arranged on its surface, and a push plate 331 is connected to the surface of each sliding sleeve 332. The sliding sleeves 332 are slidably installed inside the sliding grooves 322, and the push plates 331 are located inside the spring pieces 321. The surface of the screw 330 rotates and meshes with the inner wall of the sliding sleeve 332, and the thread directions of the two ends of the screw 330 are opposite.

[0038] According to the curvature of the required traction pipe surface, the staff uses a wrench to drive the screw 330 to rotate. When the screw 330 rotates, it can drive the sliding sleeve 332 to move synchronously, thereby driving the push plate 331 inside the drive roller 320 to move. During the movement of the push plate 331, it will open the spring piece 321, thereby changing the curvature of the surface of the spring piece 321.

[0039] Multiple spring pieces 321 have arc-shaped surfaces, and multiple drive rollers 320 are provided with sleeves 340 on their surfaces. The inner wall of the sleeve 340 is in contact with the surface of the spring piece 321. The sleeve 340 is designed with an elastic material and is made of rubber material, which has good elasticity and can fully fit the surface of the spring piece 321. This makes the surface of the traction mechanism 300 more closely attached to the surface of the pipe, which not only increases the traction force, but also effectively ensures the uniformity of force between the traction mechanism 300 and the surface of the pipe, and effectively avoids the problem of deformation of the pipe surface caused by the traction mechanism 300.

[0040] Working principle: In actual use, the operator matches the axis of the adjusting mechanism 100 with the axis of the pipe extrusion equipment. According to the diameter of the pipe to be produced, the drive mechanism 130 drives the gear ring 120 to rotate. The gear ring 120 simultaneously drives the stroke plate 220 in multiple positioning mechanisms 200 to move, thereby achieving the effect of synchronously adjusting the movement of multiple traction mechanisms 300. The surface of the traction pipe can be clamped synchronously, keeping the axis of the pipe and the axis of the adjusting mechanism 100 coincident.

[0041] According to the required curvature of the pipe surface, the operator uses a wrench to rotate the screw 330. When the screw 330 rotates, it can simultaneously drive the sliding sleeve 332 to move, thereby driving the push plate 331 inside the drive roller 320 to move. During the movement of the push plate 331, it will open the spring piece 321, thereby changing the curvature of the surface of the spring piece 321. The sleeve 340 is made of rubber material and has good elasticity. It can fully fit the surface of the spring piece 321, making the surface of the traction mechanism 300 more closely fit the pipe surface. This not only increases the traction force, but also effectively ensures the uniformity of force between the traction mechanism 300 and the pipe surface, effectively avoiding the problem of deformation of the pipe surface caused by the traction mechanism 300.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A traction device for extrusion molding of large-diameter PE plastic pipes, characterized in that: Includes adjustment mechanism (100); The adjustment mechanism (100) includes a positioning ring (110), a gear ring (120), and a plurality of drive mechanisms (130). The gear ring (120) is rotatably mounted inside the positioning ring (110), and the output end of each drive mechanism (130) meshes with the surface of the gear ring (120). The adjustment mechanism (100) has a plurality of positioning mechanisms (200) on its surface. Each positioning mechanism (200) includes a sleeve (210) and a travel plate (220). The travel plate (220) is slidably inserted into the sleeve (210). The surface of the travel plate (220) meshes with the surface of the gear ring (120). Each positioning mechanism (200) is provided with a traction mechanism (300) at one end. Each traction mechanism (300) includes a dual-axis motor (310), a drive roller (320), and a screw (330). Each dual-axis motor (310) is connected to each drive roller (320) by a transmission mechanism (350). Each drive roller (320) is provided with multiple spring pieces (321) inside. Each drive roller (320) has multiple sliding grooves (322) on its inner wall. Each screw (330) has a sliding sleeve (332) symmetrically arranged on its surface. Each sliding sleeve (332) is connected to a push plate (331). The surface of the screw (330) rotates and meshes with the inner wall of the sliding sleeve (332). The thread directions of the two ends of the screw (330) are opposite.

2. The traction device for large-diameter PE plastic pipe extrusion molding according to claim 1, characterized in that: The adjustment mechanism (100) is provided with a connector (400) on its surface.

3. The traction device for large-diameter PE plastic pipe extrusion molding according to claim 1, characterized in that: The multiple drive mechanisms (130) are symmetrically distributed about the surface of the adjustment mechanism (100), and each drive mechanism (130) is a servo motor.

4. The traction device for large-diameter PE plastic pipe extrusion molding according to claim 1, characterized in that: Each of the aforementioned sleeves (210) has multiple bolts rotatably inserted into its surface.

5. The traction device for large-diameter PE plastic pipe extrusion molding according to claim 1, characterized in that: The sliding sleeves (332) are all slidably installed inside the sliding grooves (322), and the push plates (331) are all located inside the spring pieces (321).

6. The traction device for large-diameter PE plastic pipe extrusion molding according to claim 1, characterized in that: The surfaces of the multiple spring pieces (321) are arc-shaped, and the surfaces of the multiple drive rollers (320) are provided with sleeves (340), and the inner wall of the sleeves (340) is in contact with the surface of the spring pieces (321). The sleeves (340) are designed with elastic material.

7. The traction device for large-diameter PE plastic pipe extrusion molding according to claim 1, characterized in that: The transmission mechanism (350) is a belt.

Images