Traction machine for PVC pipe production

Abstract

The utility model provides a traction machine for PVC (polyvinyl chloride) pipe production, which belongs to the technical field of pipeline traction and comprises a traction device and a clamping device. According to the traction device, a plurality of supporting rods are perpendicularly arranged on the two sides of the top end of the workbench, long strips are fixedly connected to the top ends of the supporting rods, a main rotating shaft and an auxiliary rotating shaft are arranged at the two ends between the long strips respectively, and one end of the main rotating shaft extends out of the long strips and the frame and is externally connected with the output end of a micro motor. A main rotating shaft drives a driven rotating shaft through a conveying belt, a PVC pipe to be clamped is placed on an arc groove in a convex plate to be inserted into an inlet pipe of a frame in a penetrating mode, a pull handle is loosened, resetting is conducted through the action of a spring, clamping blocks move inwards and clamp the PVC pipe, loosening in the traction process is avoided, the conveying belt drives the PVC pipe to move towards an outlet pipe, a threaded rod is rotated, and the PVC pipe is clamped. The height position of the inverted-U-shaped plate can be stably adjusted, and the driving roller assists the traction movement of the PVC pipe so as to adapt to pipes with different diameters.

Description

Technical Field

[0001] This utility model relates to the field of pipeline traction technology, and more specifically, to a traction machine for PVC pipe production. Background Technology

[0002] A traction machine for PVC pipe production is a device used to pull and transport pipes in the PVC pipe production process. It provides a certain traction force and speed to the pipes, allowing them to cool, shape, and be transported at a set speed to obtain pipes of the corresponding wall thickness.

[0003] The traction machine for pipe production disclosed in application number CN202321221378.5 is also an increasingly mature technology. By setting up positioning rollers, the device pulls the pipe through the drive rollers and then guides and positions the pipe through the positioning rollers. This setting can prevent the pipe from deviating during traction and transmission. Moreover, the structure of the device can minimize the wear on the surface of the pipe during transmission. The distance between the two sets of fixed frames can be adjusted by the adjustment mechanism, which facilitates the traction and transmission of pipes of different diameters. The buffer mechanism can prevent the positioning roller from pressing too hard on the pipe due to excessive adjustment range, thereby preventing the positioning roller from squeezing and deforming the pipe.

[0004] Based on this, we agree with the advantages of the aforementioned products, but the following drawbacks still exist:

[0005] This type of traction machine does not have a limiting function when pulling PVC pipes, which makes it easy for the PVC pipes to deviate or bend when they are transported inside the traction machine. Utility Model Content

[0006] The purpose of this utility model is to provide a traction machine for PVC pipe production, so as to solve the problem that the traction machine mentioned in the background art does not have a limiting function and is prone to deviation or bending.

[0007] This utility model embodiment provides a traction machine for PVC pipe production, including a traction device and a clamping device;

[0008] The traction device includes several support rods vertically arranged on both sides of the top of the workbench. Each support rod has a long strip fixedly connected to its top. A main rotating shaft and a driven rotating shaft are respectively arranged at both ends of the long strip. One end of the main rotating shaft extends out of the long strip and the frame and is externally connected to the output end of a micro motor. The main rotating shaft drives the driven rotating shaft through a conveyor belt. The top of the conveyor belt is provided with an inverted U-shaped plate. Drive rollers rotate evenly at intervals inside the inverted U-shaped plate. A threaded rod is threadedly connected to the middle of the top of the inverted U-shaped plate.

[0009] The clamping device includes a worktable with convex plates at both ends. The top of the convex plates has an arc groove. Locking blocks are provided on both sides of the arc groove at the top of the convex plates. A connecting shaft is provided between the locking blocks. Clamping blocks are symmetrically rotated around the outside of the connecting shaft. Support columns are vertically provided on both sides of the convex plates. A pull rod is horizontally connected to the middle of the outside of the clamping blocks on both sides and extends outward from the outside of the support column. A limiting plate is provided at the far end of the support column and a pull handle is connected to the outside. A spring is sleeved on the outside of the pull rod between the clamping block and the support column.

[0010] In this embodiment, a micro motor drives the main shaft to rotate, and the main shaft rotates together with the conveyor belt. The conveyor belt moves the PVC pipe towards the outlet pipe. The rotating threaded rod can stably adjust the height of the inverted U-shaped plate to accommodate pipes of different diameters and ensure smooth traction. According to the diameter of the PVC pipe, the operator pulls the handle to drive the pull rod and the clamping block to rotate along the connecting shaft of the locking block, thereby opening the clamping block outward. At this time, the spring outside the pull rod is compressed, and the PVC pipe to be clamped is placed on the arc groove on the convex plate. When the handle is released, the spring resets the clamping block, which moves inward and clamps the PVC pipe, preventing loosening during traction.

[0011] In one embodiment of this utility model, a rectangular groove is provided at the top of the workbench, and a frame of matching size is provided at the top of the rectangular groove. An inlet hole and an outlet hole are respectively provided at both ends of the frame, and an inlet pipe and an outlet pipe are fixedly connected to the outside. A U-shaped groove is provided at one end of the frame located on the main rotating shaft.

[0012] In this design, a rectangular groove allows the frame to fit snugly against the workbench, while the inlet and outlet pipes facilitate the entry and exit of PVC pipes, and the U-shaped groove facilitates the movement of the frame.

[0013] In one embodiment of this utility model, anti-slip blocks are evenly distributed on the outer side of the conveyor belt, and telescopic rods are vertically arranged at the four corners of the top of the inverted U-shaped plate. The top of the telescopic rods is connected to the inner top of the frame, and a threaded cylinder is arranged on the outside of the threaded rod of the inverted U-shaped plate.

[0014] In this solution, the friction between the conveyor belt and the PVC pipe is increased by using anti-slip blocks, the telescopic rod is used to assist in limiting the inverted U-shaped plate, and the threaded cylinder makes the rotation of the threaded rod more stable.

[0015] In one embodiment of this utility model, fixing strips are provided on both sides of the frame near the bottom. Multiple positioning threaded holes are provided on both the worktable and the fixing strips. The screws are threaded into the interior of the positioning threaded holes. A bearing sleeve is fitted on the outside of the long strip extending from the main shaft. Rubber pads are provided on the inner sidewalls of the arc groove and the clamping block.

[0016] In this solution, the fixing strip and the positioning threaded hole are matched, and the screw is inserted through the positioning threaded hole to fix the frame. The bearing sleeve reduces the friction and wear between the main shaft and the long strip, and the rubber pad increases the friction between the arc groove and the clamping block and PVC pipe.

[0017] In one embodiment of this utility model, the workbench is provided with legs at all four corners of its bottom and with reinforcing ribs in the middle, and each leg is provided with a caster wheel with a wheel brake at its bottom.

[0018] In this design, the height of the workbench is increased by outriggers, the structural strength between the outriggers is increased by reinforcing ribs, and the casters allow the traction machine to be moved flexibly to any position and then fixed by wheel brakes.

[0019] In one embodiment of this utility model, a switch button is provided on the top of the workbench on one side of the inlet pipe, and the switch button is electrically connected to an external power supply.

[0020] In this solution, power is supplied to the electrical equipment via a switch button, making it convenient for staff to operate.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] Depending on the diameter of the PVC pipe, the operator pulls the handle, causing the pull rod and clamping block to rotate along the connecting shaft of the locking block. This opens the clamping block outward, compressing the spring outside the pull rod. The PVC pipe to be clamped is placed on the arc groove on the convex plate and inserted into the inlet pipe of the frame. When the handle is released, the spring returns the clamping block to its original position, moving it inward and clamping the PVC pipe to prevent loosening during traction. A micro motor drives the main shaft to rotate, and the rotation of the main shaft is driven by the conveyor belt, which moves the PVC pipe towards the outlet pipe. Rotating the threaded rod allows for stable adjustment of the height of the inverted U-shaped plate. The telescopic rod is used to assist in limiting the inverted U-shaped plate to prevent rotation, thereby changing the clamping force of the drive roller on the PVC pipe. The drive roller assists in the traction movement of the PVC pipe to accommodate pipes of different diameters. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the traction machine of this utility model;

[0025] Figure 2This is a schematic diagram of the cross-sectional structure of the traction device of this utility model;

[0026] Figure 3 This is a schematic diagram of the disassembled structure of the clamping device of this utility model.

[0027] In the diagram: 100, traction device; 110, workbench; 111, support rod; 112, long strip; 113, main shaft; 114, driven shaft; 115, frame; 116, micro motor; 117, conveyor belt; 118, inverted U-shaped plate; 119, drive roller; 120, threaded rod; 121, rectangular groove; 122, inlet pipe; 123, outlet pipe; 124, U-shaped groove; 125, anti-slip block; 126, telescopic rod; 127, threaded cylinder; 128, fixing strip; 129, positioning threaded hole; 130, support leg; 131, caster wheel; 132, switch button;

[0028] 200. Clamping device; 210. Convex plate; 211. Arc groove; 212. Locking block; 213. Clamping block; 214. Support column; 215. Pull rod; 216. Limiting plate; 217. Spring. Detailed Implementation

[0029] 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.

[0030] Example

[0031] Please see Figure 1-3 This utility model provides a traction machine for PVC pipe production, including a traction device 100 and a clamping device 200;

[0032] Please refer to the details. Figure 2 The traction device 100 includes a number of support rods 111 vertically arranged on both sides of the top of the worktable 110. The top of each support rod 111 is fixedly connected to a long strip 112. The two ends of the long strip 112 are respectively provided with a main rotating shaft 113 and a driven rotating shaft 114. One end of the main rotating shaft 113 extends out of the long strip 112 and the frame 115 and is externally connected to the output end of the micro motor 116. The main rotating shaft 113 drives the driven rotating shaft 114 through the conveyor belt 117. The top of the conveyor belt 117 is provided with an inverted U-shaped plate 118. Drive rollers 119 rotate evenly inside the inverted U-shaped plate 118. A threaded rod 120 is threadedly connected to the middle of the top of the inverted U-shaped plate 118.

[0033] In one specific embodiment, please refer to Figure 2 By starting the micro motor 116, the micro motor 116 drives the main rotating shaft 113 to rotate. The rotation of the main rotating shaft 113 drives the driven shaft 114 to rotate together through the conveyor belt 117. The conveyor belt 117 drives the PVC pipe to move towards the outlet pipe 123. Rotating the threaded rod 120 can stably adjust the height of the inverted U-shaped plate 118, thereby changing the clamping force of the drive roller 119 on the PVC pipe. The drive roller 119 assists in the traction movement of the PVC pipe to adapt to pipes of different diameters and ensure smooth traction. The support rod 111 provides support for the long strip 112 to ensure the stability of the traction device 100. The long strip 112 is used to fix the main rotating shaft 113 and the driven shaft 114.

[0034] Please see Figure 3 The clamping device 200 includes a worktable 110 with convex plates 210 at both ends of the top. The top of the convex plate 210 has an arc groove 211. Locking blocks 212 are provided on both sides of the top of the convex plate 210 at the arc groove 211. A connecting shaft is provided between the locking blocks 212. A clamping block 213 is symmetrically rotated outside the connecting shaft. A support column 214 is vertically provided on both sides of the convex plate 210. A pull rod 215 is horizontally connected to the middle of the outside of the clamping blocks 213 on both sides and extends out of the outside of the support column 214. A limiting plate 216 is provided at the far end of the support column 214 and a pull handle is connected to the outside. A spring 217 is sleeved on the outside of the pull rod 215 between the clamping block 213 and the support column 214.

[0035] In one specific embodiment, please refer to Figure 3 Based on the diameter of the PVC pipe, the worker pulls the handle, causing the pull rod 215 and the clamping block 213 to rotate along the connecting shaft of the locking block 212, thereby opening the clamping block 213 outward. At this time, the spring 217 outside the pull rod 215 is compressed, and the PVC pipe to be clamped is placed on the arc groove 211 on the convex plate 210. When the handle is released, the spring 217 resets the clamping block 213, which moves inward and clamps the PVC pipe, preventing loosening during the traction process.

[0036] Please see Figure 3 The top of the workbench 110 is provided with a rectangular groove 121, and a frame 115 of matching size is provided at the top of the rectangular groove 121. The two ends of the frame 115 are respectively provided with an inlet hole and an outlet hole, and an inlet pipe 122 and an outlet pipe 123 are fixedly connected to the outside. A U-shaped groove 124 is provided at one end of the frame 115 located on the main rotating shaft 113.

[0037] In one specific embodiment, please refer to Figure 3 The rectangular groove 121 allows the frame 115 to fit snugly against the workbench 110, the inlet pipe 122 and outlet pipe 123 facilitate the entry and exit of the PVC pipe, and the U-shaped groove 124 facilitates the movement of the frame 115.

[0038] Please see Figure 2 The conveyor belt 117 is evenly spaced with anti-slip blocks 125. The top four corners of the inverted U-shaped plate 118 are vertically provided with telescopic rods 126. The top of the telescopic rods 126 are connected to the inner top of the frame 115. The inverted U-shaped plate 118 is provided with a threaded cylinder 127 outside the threaded rod 120.

[0039] In one specific embodiment, please refer to Figure 2 The anti-slip block 125 increases the friction between the conveyor belt 117 and the PVC pipe. The telescopic rod 126 is used to assist in limiting the inverted U-shaped plate 118 to prevent rotation, so that the inverted U-shaped plate 118 can move up and down stably when the threaded rod 120 rotates. The threaded cylinder 127 makes the rotation of the threaded rod 120 more stable.

[0040] Please see Figure 2 The frame 115 has fixing strips 128 on both sides near the bottom. The worktable 110 and the fixing strips 128 are provided with multiple positioning thread holes 129. The screws are threaded to the inside of the positioning thread holes 129. The main shaft 113 extends out of the long strip 112 and is fitted with a bearing sleeve. The arc groove 211 and the inner sidewall of the clamping block 213 are both provided with rubber pads.

[0041] In one specific embodiment, please refer to Figure 2 The frame 115 is fixed by the cooperation of the fixing strips 128 on both sides of the frame 115 with the positioning threaded holes 129. The screws are inserted into the positioning threaded holes 129 for threaded connection to fix the frame 115. The bearing sleeve reduces the friction and wear between the main shaft 113 and the long strip 112, so that the main shaft 113 can maintain stable operation. The rubber pad increases the friction between the arc groove 211 and the clamping block 213 and the PVC pipe.

[0042] Please see Figure 3 The workbench 110 is equipped with support legs 130 at the four corners of its bottom and a reinforcing rib in the middle. The bottom of each support leg 130 is equipped with a caster wheel 131 with a wheel brake.

[0043] In one specific embodiment, please refer to Figure 3 The height of the worktable 110 is increased by the support legs 130, the reinforcing ribs increase the structural strength between the support legs 130, and the casters 131 make it easy to move the tractor to any position and then fix it with wheel brakes to prevent the tractor from moving.

[0044] Please see Figure 3 A switch button 132 is provided on the top of the workbench 110, located on one side of the inlet pipe 122. The switch button 132 is electrically connected to an external power supply.

[0045] In one specific embodiment, please refer to Figure 3 The power supply to the electrical equipment is provided by the switch button 132, making it convenient for staff to operate.

[0046] The present invention provides a traction machine for PVC pipe production, the specific usage of which is as follows:

[0047] Before use: The operator should connect the external power supply and turn on switch button 132.

[0048] In use: Depending on the diameter of the PVC pipe, the operator pulls the handle, causing the pull rod 215 and the clamping block 213 to rotate along the connecting shaft of the locking block 212. This opens the clamping block 213 outward, compressing the spring 217 outside the pull rod 215. The PVC pipe to be clamped is placed on the arc groove 211 on the convex plate 210 and inserted into the inlet pipe 122 of the frame 115. When the handle is released, the spring 217 resets the clamping block 213, which moves inward and clamps the PVC pipe, preventing loosening during traction. The micro motor 116 drives the main shaft 113 to rotate. The rotation of the main shaft 113 is driven by the conveyor belt 117 to rotate together with the shaft 114. The conveyor belt 117 drives the PVC pipe to move towards the outlet pipe 123. The rotating threaded rod 120 can stably adjust the height of the inverted U-shaped plate 118. The telescopic rod 126 is used to assist in limiting the inverted U-shaped plate 118 to prevent rotation, thereby changing the clamping force of the drive roller 119 on the PVC pipe. The drive roller 119 assists in the traction movement of the PVC pipe to adapt to pipes of different diameters.

[0049] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A traction machine for PVC pipe production, characterized in that, include: The traction device (100) includes a number of support rods (111) vertically arranged on both sides of the top of the worktable (110). The top of each support rod (111) is fixedly connected to a long strip (112). The two ends of the long strip (112) are respectively provided with a main rotating shaft (113) and a driven rotating shaft (114). One end of the main rotating shaft (113) extends out of the long strip (112) and the frame (115) and is externally connected to the output end of a micro motor (116). The main rotating shaft (113) drives the driven rotating shaft (114) through a conveyor belt (117). The top of the conveyor belt (117) is provided with an inverted U-shaped plate (118). The inside of the inverted U-shaped plate (118) is a drive roller (119) that rotates evenly at intervals. The top of the inverted U-shaped plate (118) is threadedly connected to a threaded rod (120). The clamping device (200) includes a worktable (110) with convex plates (210) at both ends of the top end. The top end of the convex plate (210) is provided with an arc groove (211). Locking blocks (212) are provided on both sides of the arc groove (211) at the top end of the convex plate (210). A connecting shaft is provided between the locking blocks (212). A clamping block (213) is symmetrically rotated outside the connecting shaft. A support column (214) is vertically provided on both sides of the convex plate (210). A pull rod (215) is horizontally connected to the middle of the outside of the clamping blocks (213) on both sides and extends out of the outside of the support column (214). A limiting plate (216) is provided at the far end of the support column (214) and a pull handle is connected to the outside. A spring (217) is sleeved between the clamping block (213) and the support column (214) on the outside of the pull rod (215).

2. The traction machine for PVC pipe production according to claim 1, characterized in that: The top of the workbench (110) is provided with a rectangular groove (121), and the top of the rectangular groove (121) is provided with a frame (115) of matching size. The two ends of the frame (115) are respectively provided with an inlet hole and an outlet hole, and an inlet pipe (122) and an outlet pipe (123) are fixedly connected to the outside. The frame (115) is provided with a U-shaped groove (124) at one end of the main rotating shaft (113).

3. The traction machine for PVC pipe production according to claim 1, characterized in that: The conveyor belt (117) is evenly spaced with anti-slip blocks (125), and the top four corners of the inverted U-shaped plate (118) are vertically provided with telescopic rods (126). The top of the telescopic rods (126) is connected to the inner top of the frame (115). The inverted U-shaped plate (118) is provided with a threaded cylinder (127) outside the threaded rod (120).

4. The traction machine for PVC pipe production according to claim 1, characterized in that: The frame (115) has fixing strips (128) on both sides near the bottom. The worktable (110) and the fixing strips (128) are provided with multiple positioning thread holes (129). The screws are threaded to the inside of the positioning thread holes (129). The main shaft (113) extends out of the long strip (112) and is fitted with a bearing sleeve. The arc groove (211) and the inner sidewall of the clamping block (213) are both provided with rubber pads.

5. A traction machine for PVC pipe production according to claim 1, characterized in that: The workbench (110) is provided with legs (130) at the four corners of its bottom and with reinforcing ribs in the middle. The bottom of each leg (130) is provided with a caster wheel (131) with a wheel brake.

6. The traction machine for PVC pipe production according to claim 1, characterized in that: A switch button (132) is provided on the top of the workbench (110) on one side of the inlet pipe (122), and the switch button (132) is electrically connected to an external power supply.

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