A polyvinyl chloride pipe flaring structure

By designing a flaring structure for PVC pipes, and utilizing components such as flaring cylinders, flaring heads, and positioning cylinders, automatic positioning and unloading of pipe fittings are achieved, solving the problem of low efficiency in manual positioning and unloading, and improving processing efficiency.

CN224408462UActive Publication Date: 2026-06-26DONGGUAN DEYONG PLASTIC PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN DEYONG PLASTIC PROD CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the existing process of widening polyvinyl chloride (PVC) pipes, manual positioning and unloading are inefficient and cannot meet the production needs of batch and continuous operations, becoming a bottleneck restricting the improvement of overall efficiency.

Method used

A polyvinyl chloride (PVC) pipe flaring structure is designed. Through the cooperation of a flaring cylinder, a flaring head, a positioning cylinder, a sleeve, a slide, a positioning device, and a main cylinder, the pipe fitting can be automatically positioned, flared, and unloaded, reducing manual intervention.

Benefits of technology

It enables precise flaring and automatic unloading of pipe fittings, improving processing efficiency and meeting the needs of mass production.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224408462U_ABST
    Figure CN224408462U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of polyvinyl chloride pipe flaring structure, including frame, frame, crossbeam, the top of the frame is fixedly connected with frame, the upper portion of the inboard of the frame is fixedly connected with crossbeam, the side surface of the frame is equipped with flaring cylinder, the end of flaring cylinder output is fixedly connected with flaring head, the diameter of flaring head gradually increases from front to back, the upper of crossbeam is fixedly connected with positioning cylinder, the end of positioning cylinder output is fixedly connected with clamp sleeve.The utility model has the advantages that: through the cooperation setting of flaring cylinder, flaring head, positioning cylinder, clamp sleeve, end, sliding platform, positioning tool, main cylinder, slide, positioning tool is driven to incline by main cylinder, combined with sliding platform-slide structure, realize the automatic sliding of pipe fitting after processing, reduce manual intervention, can realize the automatic unloading output of pipe fitting processing completion, can realize the accurate flaring of pipe fitting, and processing efficiency is high.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe processing technology, and in particular to a flared structure for polyvinyl chloride pipes. Background Technology

[0002] Polyvinyl chloride (PVC) pipes are widely used in many fields such as water supply and drainage, agricultural irrigation, cable protection, and chemical fluid transportation due to their excellent corrosion resistance, lightweight, cost-effectiveness, and ease of processing. In the actual pipeline system laying and connection process, it is often necessary to flare the pipe ends to enable quick and reliable sealing connections between pipe fittings using methods such as rubber sealing rings.

[0003] Currently, the mainstream method for flaring PVC pipe ends in the industry is to use external or internal heating combined with mold expansion. Traditional flaring equipment and processes typically have the following limitations that urgently need to be addressed:

[0004] Manual positioning and unloading are inefficient: After the pipe fittings are loaded, operators often need to manually and accurately position them in the work area (flaring station), and after flaring, the finished pipe fittings are then manually removed from the station and unloaded. This manual intervention significantly slows down the production pace, making it difficult to adapt to the production needs of batch and continuous operations, and becoming a key bottleneck restricting the improvement of overall efficiency.

[0005] Therefore, a flared structure for polyvinyl chloride pipe is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0007] Therefore, one objective of this utility model is to propose a flared structure for polyvinyl chloride pipes to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0008] To achieve the above objectives, one embodiment of the present invention provides a polyvinyl chloride pipe flaring structure, including a base, a frame, and a crossbeam. The top of the base is fixedly connected to the frame, and the upper part of the inner side of the frame is fixedly connected to the crossbeam. A flaring cylinder is installed on the side of the frame, and a flaring nozzle is fixedly connected to the end of the output end of the flaring cylinder. The diameter of the flaring nozzle gradually increases from front to back.

[0009] A positioning cylinder is fixedly connected to the top of the crossbeam, a sleeve is fixedly connected to the end of the output end of the positioning cylinder, an end head is fixedly connected to the inner side of the frame, a slide is fixedly connected to the top of the base, and a baffle is provided at the edge of the surface of the slide.

[0010] A positioning device is movably connected to the higher end of the slide table, and a main cylinder is fixedly connected to the top of the base. The end of the output end of the main cylinder is movably connected to the front edge of the bottom surface of the positioning device.

[0011] The lower end of the slide table is connected to a slide rail, which is mounted on the machine base by a bracket.

[0012] Preferably, in any of the above embodiments, the base and the frame are assembled by bolts, and the crossbeam is welded to the frame.

[0013] The above technical solution is adopted: This device is specially used for flaring polyvinyl chloride plastic pipes. The working process is as follows: the pipe is placed on the positioning device, the end of the pipe abuts against the end cap, the positioning cylinder works, the sleeve descends to cooperate with the positioning device to clamp the pipe, the flaring cylinder works, and the flaring nozzle enters the end of the pipe to flare its end. After flaring, the flaring cylinder and the positioning cylinder retract, the output end of the main cylinder moves upward, and since the positioning device and the slide are movably connected, the positioning device is lifted, the pipe automatically slides into the slide and is finally output through the slide rail.

[0014] It can automatically unload and output pipe fittings after processing, and can achieve precise flaring of pipe fittings, resulting in high processing efficiency.

[0015] Preferably, in any of the above embodiments, the flaring cylinder, the flaring head, the positioning point of the positioning device, and the end are in a straight line, and the positioning cylinder is installed vertically.

[0016] The above technical solution is adopted: The device consists of: a basic frame; a base: serving as the foundation support for the equipment, with the top fixedly connected to the frame.

[0017] Frame: Assembled with the base by bolts, with a crossbeam welded to the upper inner side and flared cylinders mounted on the sides. Crossbeam: Fixed to the upper inner side of the frame to support the positioning cylinder.

[0018] Flaring actuator: Flaring cylinder: horizontally mounted on the side of the frame, with the output end connected to the flaring nozzle. Flaring nozzle: the front end diameter is smaller than the rear end, with a gradually expanding conical structure, used to insert into the end of the pipe fitting for flaring.

[0019] Positioning and clamping mechanism: Positioning cylinder: vertically fixed on the crossbeam, with its output end connected to a clamping sleeve. Clamping sleeve: has a semi-cylindrical space at the bottom, which cooperates with the semi-cylindrical space at the top of the positioning fixture to form a complete cylindrical clamping cavity. End head: fixed inside the frame to abut the end of the pipe fitting, ensuring accurate flaring position.

[0020] Slide and unloading mechanism:

[0021] Slide table: Installed at an angle on the machine base, with a baffle on its surface. The higher end is movably connected to the positioning fixture, and the lower end connects to the U-shaped slide rail. Main cylinder: Vertically fixed on the machine base, with its output end hinged to the bottom surface of the positioning fixture, used to lift the positioning fixture. Slide rail: Installed on the machine base via a bracket, used to guide the flared pipe fittings out.

[0022] Key structural relationships:

[0023] Coaxial positioning: The clamping centers and ends of the flaring cylinder, flaring head, and positioning fixture are all on the same horizontal axis, ensuring flaring accuracy. Rotatable positioning fixture: The positioning fixture is hinged to the slide table, and the main cylinder drives it to rotate around the hinge point, achieving tilted unloading of the pipe fitting. Slide table tilting design: The higher end of the slide table tilts towards the lower end, forming a gravity-guided channel with the slide rail, enabling the pipe fitting to slide out automatically.

[0024] Preferably, in any of the above embodiments, the bottom of the sleeve and the top of the positioning device each have a semi-cylindrical space, and the sleeve is located directly above the positioning device.

[0025] Preferably, in any of the above embodiments, the positioning device is rotatable, the main cylinder is installed vertically and its output end faces upward.

[0026] Preferably, the slide is a U-shaped structure, as described in any of the above schemes.

[0027] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0028] This PVC pipe flaring structure, through the coordinated arrangement of a flaring cylinder, a flaring head, a positioning cylinder, a sleeve, an end cap, a slide table, a positioning fixture, a main cylinder, and a slide rail, enables the positioning fixture to tilt automatically after processing, combined with the slide table-slide rail structure. This reduces manual intervention, allows for automatic unloading and output of processed pipes, and enables precise flaring of pipes with high processing efficiency.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0032] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0033] Figure 3This is a schematic diagram of the structure of the slide table of this utility model;

[0034] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0035] In the diagram: 1-base, 2-frame, 3-crossbeam, 4-flaring cylinder, 5-flaring head, 6-positioning cylinder, 7-sleeve, 8-end, 9-slide table, 10-positioning device, 11-main cylinder, 12-slide rail, 13-bracket. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] like Figure 1-4 As shown, this PVC pipe flaring structure includes a base 1, a frame 2, and a crossbeam 3. The top of the base 1 is fixedly connected to the frame 2, and the upper part of the inner side of the frame 2 is fixedly connected to the crossbeam 3. A flaring cylinder 4 is installed on the side of the frame 2, and a flaring nozzle 5 is fixedly connected to the end of the output end of the flaring cylinder 4. The diameter of the flaring nozzle 5 gradually increases from front to back.

[0039] A positioning cylinder 6 is fixedly connected to the top of the crossbeam 3. A sleeve 7 is fixedly connected to the end of the output end of the positioning cylinder 6. An end head 8 is fixedly connected to the inner side of the frame 2. A slide table 9 is fixedly connected to the top of the base 1. A baffle is provided at the edge of the surface of the slide table 9.

[0040] The higher end of the slide table 9 is movably connected to the positioning device 10, and the top of the base 1 is fixedly connected to the main cylinder 11. The end of the output end of the main cylinder 11 is movably connected to the front edge of the bottom surface of the positioning device 10.

[0041] The lower end of the slide table 9 is connected to a slide rail 12, which is mounted on the base 1 via a bracket 13.

[0042] Example 1: The base 1 and frame 2 are assembled with bolts, and the crossbeam 3 is welded to the frame 2. The flared cylinder 4, the flared head 5, the positioning point of the positioning fixture 10, and the end 8 are in a straight line, and the positioning cylinder 6 is installed vertically. The bottom of the sleeve 7 and the top of the positioning fixture 10 both have a semi-cylindrical space, and the sleeve 7 is located directly above the positioning fixture 10. The positioning fixture 10 is rotatable, and the main cylinder 11 is installed vertically with its output end facing upwards. The slide rail 12 has a U-shaped structure.

[0043] Example 2: Composition of this device: Basic frame: Base 1: serves as the foundation support for the equipment, with frame 2 fixedly connected to the top. Frame 2: assembled with base 1 by bolts, with a crossbeam 3 welded to the upper inner side, and a flared cylinder 4 installed on the side. Crossbeam 3: fixed to the upper inner side of frame 2, used to support the positioning cylinder 6.

[0044] Flaring actuator: Flaring cylinder 4: horizontally mounted on the side of frame 2, with its output end connected to flaring nozzle 5. Flaring nozzle 5: the front end diameter is smaller than the rear end, and it has a gradually expanding conical structure, used to insert into the end of the pipe fitting for flaring.

[0045] Positioning and clamping mechanism: Positioning cylinder 6: vertically fixed on the crossbeam 3, with its output end connected to the sleeve 7. Sleeve 7: has a semi-cylindrical space at the bottom, which cooperates with the semi-cylindrical space at the top of the positioning fixture 10 to form a complete cylindrical clamping cavity. End 8: fixed inside the frame 2, used to abut against the end of the pipe fitting to ensure accurate flaring position.

[0046] Slide 9 and unloading mechanism: Slide 9: It is installed at an angle on the base 1, and the surface is provided with a baffle. The higher end is movably connected to the positioning device 10, and the lower end is connected to the U-shaped slide 12.

[0047] Main cylinder 11: vertically fixed on the base 1, with its output end hinged to the bottom surface of the positioning device 10, used to lift the positioning device 10.

[0048] Slide 12: Mounted on base 1 via bracket 13, used to guide the flared pipe fittings out.

[0049] Key structural relationships:

[0050] Coaxial positioning: The clamping centers of the flaring cylinder 4, the flaring head 5, and the positioning fixture 10, as well as the end 8, are on the same horizontal axis to ensure flaring accuracy. Rotatable positioning fixture: The positioning fixture 10 is hinged to the slide table 9, and the main cylinder 11 drives it to rotate around the hinge point, realizing tilted unloading of the pipe fitting. Tilt design of slide table 9: The higher end of the slide table 9 is tilted towards the lower end, forming a gravity guide channel with the slide rail 12, realizing automatic sliding out of the pipe fitting.

[0051] The working principle of this utility model is as follows:

[0052] This device is specifically designed for flaring polyvinyl chloride (PVC) plastic pipes. The working process is as follows: the pipe fitting is placed on the positioning device 10, with the end of the pipe fitting abutting the end 8. The positioning cylinder 6 operates, and the sleeve 7 descends to cooperate with the positioning device 10 to clamp the pipe fitting. The flaring cylinder 4 operates, using the flaring nozzle 5 to enter the end of the pipe fitting to flare its port. After flaring, the flaring cylinder 4 and the positioning cylinder 6 retract, and the output end of the main cylinder 11 moves upward. Since the positioning device 10 and the slide table 9 are movably connected, the positioning device 10 is lifted, and the pipe fitting automatically slides into the slide table 9 and is finally output through the slide rail 12.

[0053] Compared with the prior art, the present invention has the following advantages:

[0054] This PVC pipe flaring structure, through the coordinated arrangement of flaring cylinder 4, flaring head 5, positioning cylinder 6, sleeve 7, end head 8, slide table 9, positioning tool 10, main cylinder 11, and slide rail 12, enables the positioning tool 10 to tilt automatically after processing, combined with the slide table 9-slide rail 12 structure. This reduces manual intervention, allows for automatic unloading and output of the processed pipe, and enables precise flaring of the pipe with high processing efficiency.

Claims

1. A flared structure for a polyvinyl chloride pipe, characterized in that, Includes a base (1), a frame (2), and a crossbeam (3). The top of the base (1) is fixedly connected to the frame (2), and the upper part of the inner side of the frame (2) is fixedly connected to the crossbeam (3). A flaring cylinder (4) is installed on the side of the frame (2), and a flaring nozzle (5) is fixedly connected to the end of the output end of the flaring cylinder (4). The diameter of the flaring nozzle (5) gradually increases from front to back. A positioning cylinder (6) is fixedly connected above the crossbeam (3), a sleeve (7) is fixedly connected to the end of the output end of the positioning cylinder (6), an end head (8) is fixedly connected to the inner side of the frame (2), a slide (9) is fixedly connected above the base (1), and a baffle is provided at the edge of the surface of the slide (9). The higher end of the slide (9) is movably connected to a positioning device (10), and the top of the base (1) is fixedly connected to a main cylinder (11). The end of the output end of the main cylinder (11) is movably connected to the front edge of the bottom surface of the positioning device (10). The lower end of the slide (9) is connected to a slide rail (12), which is mounted on the base (1) by a bracket (13).

2. The flared structure of a polyvinyl chloride pipe as described in claim 1, characterized in that: The base (1) and the frame (2) are assembled by bolts, and the crossbeam (3) is welded to the frame (2).

3. The flared structure of a polyvinyl chloride pipe as described in claim 2, characterized in that: The positioning points and ends (8) of the flaring cylinder (4), the flaring head (5), and the positioning device (10) are in a straight line, and the positioning cylinder (6) is installed vertically.

4. The flared structure of a polyvinyl chloride pipe as described in claim 3, characterized in that: The bottom of the sleeve (7) and the top of the positioning device (10) each have a semi-cylindrical space, and the sleeve (7) is located directly above the positioning device (10).

5. The flared structure of a polyvinyl chloride pipe as described in claim 4, characterized in that: The positioning device (10) is rotatable, and the main cylinder (11) is installed vertically with its output end facing upward.

6. The flared structure of a polyvinyl chloride pipe as described in claim 5, characterized in that: The slide (12) has a U-shaped structure.