Extrusion device for PVC water pipe processing

The automatic clamping and bonding component automatically clamps the pipe and the traction pipe, solving the problem of uneven connection caused by uneven manual pressing, and improving the quality and efficiency of PVC water pipe processing.

CN224323523UActive Publication Date: 2026-06-05CHONGQING DUOYOUJI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING DUOYOUJI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the existing technology, when PVC water pipes are connected to traction pipes after extrusion molding, uneven manual pressing can cause unevenness at the connection point, affecting subsequent processing.

Method used

The system employs a clamping and bonding assembly, including a support rod, guide groove, hydraulic cylinder, and servo motor-driven arc-shaped clamping plate, to automatically clamp the pipe and traction pipe, ensuring a tight connection.

Benefits of technology

This achieves a tight fit between the pipe and the traction pipe, improving the quality and efficiency of subsequent processing and reducing the unevenness of manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an extruding device for PVC water pipe processing relates to water pipe extrusion technical field, including processing platform, the first installation link is fixedly installed on the processing platform upper surface, the first installation link upper end is fixedly installed with screw rod injection molding machine, the second installation link is fixedly installed on the processing platform upper surface, the die head is installed to the second installation link top, the screw rod injection molding machine output and die head are connected, the clamping and fitting assembly is provided on the processing platform upper surface, the utility model discloses through two second hydraulic cylinder output end telescoping, at this moment can drive two arc clamps to move to the side of mutual approach, make arc clamps clamp pipeline in the middle of traction pipe, and through servo motor output end drive gear rotates, make gear drive several gear teeth, make the swivel ring rotate, at this moment can drive several arc clamps rotate, make arc clamps clamp pipeline one week and fit work.
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Description

Technical Field

[0001] This utility model relates to the field of water pipe extrusion technology, and more specifically, to an extrusion device for processing PVC water pipes. Background Technology

[0002] Municipal pipeline engineering, as an important component of municipal engineering, includes drainage pipes and power pipelines. PVC, as a substitute for steel, ensures the mechanical and electrical properties of PVC-coated steel, improves flame retardancy, and gives the product advantages such as high strength, corrosion resistance, flame retardancy, good insulation, light weight, and convenient construction. Drainage and power pipelines are mostly made of PVC material through extrusion molding. During PVC pipe production, the extrusion method is typically used. The raw materials are mixed evenly and fed into an extruder for extrusion molding, as illustrated by patent application number CN201810098945.X, which describes a method for producing PE pipes. An extrusion molding device for water pipe production includes a hot melt chamber, which includes a hot melt cavity. A heating jacket is installed on the outer wall of the hot melt chamber. A pressure plate is installed inside the hot melt cavity. One side of the pressure plate is connected to one end of a three-bar linkage mechanism. The other end of the three-bar linkage mechanism passes through one end of the hot melt chamber and extends outside the hot melt chamber. One end of the three-bar linkage mechanism located outside the hot melt chamber is connected to a drive motor. A first forming hole is provided on the end face of the hot melt cavity away from the three-bar linkage mechanism. A shaping tube is provided outside the end of the hot melt cavity with the first forming hole. A second forming hole with the same cross-sectional size as the first forming hole is provided on the shaping tube. A feed hopper is provided on the top surface of the hot melt chamber, and a sieve plate is provided in the feed hopper. The above structure ensures the quality of raw materials, thereby improving product quality. It also accelerates the cooling of the formed pipe fittings, ensuring sufficient strength for cutting operations, thus improving production efficiency and quality. After the pipe is extruded, workers need to pull the material onto the traction pipe, which then moves the pipe for further processing. Currently, workers press the pipe onto the traction pipe, but manual pressing cannot evenly and fully connect the pipe to the traction pipe, resulting in uneven joints that affect subsequent pulling. Utility Model Content

[0003] The main purpose of this utility model is to provide an extrusion device for PVC water pipe processing, which can effectively solve the problem in the background technology that after the pipe is extruded and formed, workers need to pull the material onto the traction pipe and move the pipe through the traction pipe for the next step of processing. Currently, workers press the pipe onto the traction pipe, but manual pressing cannot evenly and fully connect the pipe and the traction pipe together, resulting in uneven joints that affect the next step of pulling.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an extrusion device for processing PVC water pipes, including a processing table, a first mounting rod fixedly installed on the upper surface of the processing table, a screw injection molding machine fixedly installed at the upper end of the first mounting rod, a second mounting rod fixedly installed on the upper surface of the processing table, a die head installed at the top end of the second mounting rod, the output end of the screw injection molding machine being connected to the die head, and a clamping and fitting component provided on the upper surface of the processing table.

[0005] Preferably, the screw injection molding machine is provided with a feed funnel on its peripheral surface.

[0006] Preferably, the clamping and fitting assembly includes a support rod and a guide groove, with the top end of the support rod fixedly installed on the upper surface of the processing table and the guide groove formed on the upper surface of the processing table.

[0007] Preferably, an mounting plate is fixedly installed on the upper end of the support rod, and a first hydraulic cylinder is fixedly installed on the front surface of the mounting plate, with a vertical rod installed at the output end of the first hydraulic cylinder.

[0008] Preferably, a guide block is slidably installed inside the guide groove, a connecting rod is fixedly installed on the upper surface of the guide block, a rotating ring is installed on the upper end of the connecting rod, a first sliding groove is opened on one side surface of the rotating ring, a first slider is slidably installed inside the first sliding groove, and a first slider surface is provided at the top of the connecting rod.

[0009] Preferably, a second groove is provided on the other side surface of the rotating ring, and a second slider is provided in the sliding mounting part inside the second groove, with the lower end of the vertical rod disposed on the upper surface of the second slider.

[0010] Preferably, the circumferential surface of the rotating ring is provided with a plurality of gear teeth at equal intervals, a servo motor is fixedly mounted on the upper surface of the second slider, and a gear is mounted on the output end of the servo motor, the gear meshing with the plurality of gear teeth.

[0011] Preferably, a second hydraulic cylinder is fixedly installed on both sides of the rotating ring, and an arc-shaped clamp is installed at the output end of each of the two second hydraulic cylinders.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) One of the arc-shaped clamps is driven by the output end of one of the second hydraulic cylinders to move, so that the arc-shaped clamps can remove the waste material. There is no need for manual removal of the waste material. When the extruded pipe needs to be connected to the traction pipe for subsequent processing, the newly extruded pipe is plastic. The pipe is fitted in the middle of the traction pipe. At this time, the output ends of the two second hydraulic cylinders are extended and retracted, which can drive the two arc-shaped clamps to move towards each other, so that the arc-shaped clamps clamp the pipe in the middle of the traction pipe. The output end of the servo motor drives the gear to rotate, so that the gear drives several gear teeth, so that the rotating ring rotates. At this time, it can drive several arc-shaped clamps to rotate, so that the arc-shaped clamps clamp the pipe around the circumference, ensuring the tight fit between the pipe and the traction pipe. The output end of the first hydraulic cylinder is extended and retracted, which can drive the rotating ring to move back and forth, and clamp the pipe and the traction pipe at any position. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an extrusion device for processing PVC water pipes according to the present invention;

[0015] Figure 2 This is a side view of the overall structure of an extrusion device for processing PVC water pipes according to the present invention.

[0016] Figure 3 This is a schematic diagram of the overall front view of an extrusion device for processing PVC water pipes according to the present invention.

[0017] Figure 4 This is an enlarged structural diagram of point A of the extrusion device for processing PVC water pipes according to this utility model.

[0018] In the diagram: 1. Processing table; 2. First mounting rod; 3. Screw injection molding machine; 4. Feed hopper; 5. Second mounting rod; 6. Die head; 7. Clamping and bonding assembly; 701. Support rod; 702. Mounting plate; 703. First hydraulic cylinder; 704. Guide groove; 705. Guide block; 706. Connecting rod; 707. Rotary ring; 708. Second hydraulic cylinder; 709. Arc-shaped clamping plate; 710. First slide groove; 711. First slider; 712. Vertical rod; 713. Gear teeth; 714. Second slide groove; 715. Second slider; 716. Servo motor; 717. Gear. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0020] like Figure 1 As shown, an extrusion device for processing PVC water pipes includes a processing table 1. A first mounting rod 2 is fixedly installed on the upper surface of the processing table 1. A screw injection molding machine 3 is fixedly installed on the upper end of the first mounting rod 2. A second mounting rod 5 is fixedly installed on the upper surface of the processing table 1. A die head 6 is installed at the top end of the second mounting rod 5. The output end of the screw injection molding machine 3 is connected to the die head 6. A clamping and bonding assembly 7 is provided on the upper surface of the processing table 1.

[0021] like Figure 1 As shown, the screw injection molding machine 3 is provided with a feed funnel 4 on its peripheral surface, which facilitates the pouring of raw materials into the screw injection molding machine 3.

[0022] like Figure 2 , 3As shown in Figure 4, the clamping and fitting assembly 7 includes a support rod 701 and a guide groove 704. The top end of the support rod 701 is fixedly installed on the upper surface of the processing table 1. The guide groove 704 is formed on the upper surface of the processing table 1. An mounting plate 702 is fixedly installed on the upper end of the support rod 701. A first hydraulic cylinder 703 is fixedly installed on the front surface of the mounting plate 702. A vertical rod 712 is installed on the output end of the first hydraulic cylinder 703. A guide block 705 is slidably installed inside the guide groove 704. A connecting rod 706 is fixedly installed on the upper surface of the guide block 705. A rotating ring 707 is installed on the upper end of the connecting rod 706. A first groove 710 is formed on one side of the 707, and a first slider 711 is slidably installed inside the first groove 710. The top of the connecting rod 706 is provided with the surface of the first slider 711. A second groove 714 is formed on the other side of the rotating ring 707, and a second slider 715 is slidably installed inside the second groove 714. The lower end of the vertical rod 712 is provided on the upper surface of the second slider 715. A plurality of gear teeth 713 are equidistantly arranged on the circumference of the rotating ring 707. A servo motor 716 is fixedly installed on the upper surface of the second slider 715. A gear 717 is installed on the output end of the servo motor 716. The gear 717 and a plurality of gear teeth 713 are connected to the servo motor 715. The dry gear 713 meshes with the rotating ring 707. Second hydraulic cylinders 708 are fixedly mounted on both sides of the rotating ring 707. Arc-shaped clamping plates 709 are mounted on the output ends of both second hydraulic cylinders 708. One of the arc-shaped clamping plates 709 is moved by the output end of one of the second hydraulic cylinders 708, causing it to remove waste material. This eliminates the need for manual removal of waste material. When the extruded pipe needs to be connected to the traction pipe for subsequent processing, the freshly extruded pipe is malleable. The pipe is fitted into the middle of the traction pipe, and then extended or retracted by the output ends of the two second hydraulic cylinders 708. The two arc-shaped clamping plates 709 are driven to move towards each other, so that the arc-shaped clamping plates 709 clamp the pipe in the middle of the traction pipe. The output end of the servo motor 716 drives the gear 717 to rotate, so that the gear 707 drives several gear teeth 713 to rotate the rotating ring 707. At this time, it can drive several arc-shaped clamping plates 709 to rotate, so that the arc-shaped clamping plates 709 clamp and fit the pipe around the whole circle, ensuring the tight fit between the pipe and the traction pipe. Furthermore, by extending and retracting the output end of the first hydraulic cylinder 703, the rotating ring 717 can be driven to move back and forth, so as to clamp and fit the pipe and the traction pipe at any position.

[0023] The working principle of an extrusion device for processing PVC water pipes:

[0024] When using this device to extrude water pipes, the raw material is first placed inside the screw injection molding machine 3. The screw injection molding machine 3 heats and extrudes the raw material, which is then extruded from the center of the die head 6, forming the shape of a water pipe. If there are defects in the extruded shape, one of the second hydraulic cylinders 708 drives one of the arc-shaped clamping plates 709 to move, causing the arc-shaped clamping plate 709 to remove the waste material. Manual removal of the waste material is not required. When the extruded pipe needs to be connected to the traction pipe for subsequent processing, the freshly extruded pipe is malleable. The pipe is fitted into the middle of the traction pipe, and then... When the output end of the second hydraulic cylinder 708 extends or retracts, it drives the two arc-shaped clamping plates 709 to move towards each other, clamping the pipe in the middle of the traction pipe. The output end of the servo motor 716 drives the gear 717 to rotate, which in turn drives several gear teeth 713 to rotate the rotating ring 707. This, in turn, drives several arc-shaped clamping plates 709 to rotate, clamping and fitting the pipe around its circumference. This ensures a tight fit between the pipe and the traction pipe. Furthermore, the extension or retraction of the output end of the first hydraulic cylinder 703 drives the rotating ring 717 to move back and forth, clamping and fitting the pipe and the traction pipe at any position.

[0025] The above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. An extrusion device for processing PVC water pipes, comprising a processing table (1), characterized in that: A first mounting rod (2) is fixedly installed on the upper surface of the processing table (1). A screw injection molding machine (3) is fixedly installed on the upper end of the first mounting rod (2). A second mounting rod (5) is fixedly installed on the upper surface of the processing table (1). A mold head (6) is installed at the top of the second mounting rod (5). The output end of the screw injection molding machine (3) is connected to the mold head (6). A clamping and fitting component (7) is provided on the upper surface of the processing table (1).

2. The extrusion device for processing PVC water pipes according to claim 1, characterized in that: The screw injection molding machine (3) is provided with a feed funnel (4) on its circumference.

3. The extrusion device for processing PVC water pipes according to claim 1, characterized in that: The clamping and fitting assembly (7) includes a support rod (701) and a guide groove (704). The top end of the support rod (701) is fixedly installed on the upper surface of the processing table (1), and the guide groove (704) is opened on the upper surface of the processing table (1).

4. The extrusion device for processing PVC water pipes according to claim 3, characterized in that: The upper end of the support rod (701) is fixedly mounted with an installation plate (702), and the front surface of the installation plate (702) is fixedly mounted with a first hydraulic cylinder (703). The output end of the first hydraulic cylinder (703) is mounted with a vertical rod (712).

5. The extrusion device for processing PVC water pipes according to claim 4, characterized in that; A guide block (705) is slidably installed inside the guide groove (704). A connecting rod (706) is fixedly installed on the upper surface of the guide block (705). A rotating ring (707) is installed on the upper end of the connecting rod (706). A first sliding groove (710) is opened on one side surface of the rotating ring (707). A first slider (711) is slidably installed inside the first sliding groove (710). The top of the connecting rod (706) is provided with the surface of the first slider (711).

6. The extrusion apparatus for processing PVC water pipes according to claim 5, characterized in that: The other side surface of the rotating ring (707) is provided with a second sliding groove (714), and a second slider (715) is slidably installed inside the second sliding groove (714). The lower end of the vertical rod (712) is disposed on the upper surface of the second slider (715).

7. The extrusion apparatus for processing PVC water pipes according to claim 6, characterized in that: The rotating ring (707) has a number of gear teeth (713) evenly spaced on its circumference. A servo motor (716) is fixedly installed on the upper surface of the second slider (715). A gear (717) is installed at the output end of the servo motor (716). The gear (717) meshes with the number of gear teeth (713).

8. The extrusion apparatus for processing PVC water pipes according to claim 7, characterized in that; The rotating ring (707) has a second hydraulic cylinder (708) fixedly installed on both sides of its surface, and an arc-shaped clamp (709) is installed at the output end of each of the two second hydraulic cylinders (708).