Assembling device for electric melting pipe fitting

By designing assembly devices for electrofusion pipe fittings and using pneumatic or electric-driven press assembly components, the problem of inconsistent depth of conductive needles caused by manual compression assembly is solved, the precise pressure assembly of conductive needles is achieved, and the contact goodness and production efficiency of the electrofusion welding machine are improved.

CN223278575UActive Publication Date: 2025-08-29GANGHUA HUIXIN ENG PLASTICS (ZHONGSHAN) CO LTD
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Patent Information

Application Number
CN202422533097.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-08-29
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

In the production of existing electric fusing pipe fittings, artificial press-fitting conductive needles cannot accurately control the pressure depth, resulting in poor contact between the electric fusing welding machine and the conductive needles.

Method used

Design an assembly device for electrofusion pipe fittings, using pneumatic or electric-driven press assembly components, combining support components and positioning slots to accurately control the pressing depth of the conductive needle.

Benefits of technology

It realizes precise control of the pressure-mounting depth of the conductive needle, avoids poor contact between the electric fusion welding machine and the conductive needle, and improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembling device for an electric melting pipe fitting, which comprises a machine table, a mounting rack is arranged on the machine table, a supporting assembly for supporting the electric melting pipe fitting is arranged on the mounting rack, and a press-fitting assembly for pressing a conductive needle into the electric melting pipe fitting is arranged on the mounting rack; the press-fitting assembly is configured to execute driving in a pneumatic or electric mode so as to accurately control the press-fitting depth of the conductive needle. The electric melting pipe fitting and the supporting assembly are fixedly supported, then the press-fitting assembly is used for press-fitting the conductive needle located in the mounting column, the press-fitting assembly is pneumatically or electrically driven, the press-fitting depth of the conductive needle can be accurately controlled, and the problems that due to existing manual press-fitting, the depth of the conductive needle is different, and the press-fitting precision is poor are solved. And poor contact between the electric fusion welding machine and the conductive needle is caused.
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Description

Technical Field

[0001] The utility model relates to the technical field of electric fusion pipe fitting production, in particular to an assembling device for electric fusion pipe fittings. Background Art

[0002] Electric fusion pipe fittings refer to a type of plastic (high-density polyethylene) pipe fitting that achieves pipe connection by heating the resistance wire embedded in the inner surface of the electric fusion pipe fitting after being energized, so that the inner surface of the electric fusion pipe fitting and the outer surface of the socket pipe melt.

[0003] During the production process of existing electrofusion pipe fittings, conductive pins connected to resistance wires must be pressed into the fitting's mounting posts. This conventional press-fitting method relies on manual installation. This manual installation presents a technical challenge: the insertion depth of the pins cannot be precisely controlled. If the pins are inserted too deeply, poor contact between the electrofusion welding machine and the pins can occur, impacting normal operation. This requires further improvement. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides an assembly device for electrofusion pipe fittings.

[0005] An assembly device for electrofusion pipe fittings designed for this purpose includes a machine platform, a mounting frame provided on the machine platform, a support assembly for supporting the electrofusion pipe fitting provided on the mounting frame, and a press-fit assembly for pressing a conductive needle into the electrofusion pipe fitting provided on the mounting frame;

[0006] The press-fitting assembly is configured to be driven pneumatically or electrically to precisely control the press-fitting depth of the conductive needle.

[0007] Preferably, the support assembly includes a fixing rod fixedly arranged on the mounting frame, and the fixing rod is provided with a support block that fits with the inner wall of the electrofusion pipe.

[0008] Preferably, the wall surface of the support block that contacts the inner wall of the electrofusion pipe is an arc-shaped surface;

[0009] A limiting plate is fixedly provided on the fixing rod and is positioned in contact with the end of the electric fusion pipe.

[0010] Preferably, the press-fitting assembly includes a cylinder arranged above the supporting assembly, and the cylinder drives the cylinder shaft to drive the conductive needle to be pressed into the electric fusion pipe fitting.

[0011] Preferably, the mounting frame is provided with a positioning piece, and the positioning piece is provided with a positioning groove at one end facing the electric fusion pipe fitting, the front side of the positioning groove is open, and the mounting column of the electric fusion pipe fitting is positioned and plugged into the positioning groove from front to back.

[0012] Preferably, the mounting frame is provided with a through slot extending front to back, and a guide slot communicating with the through slot is provided on the front surface of the mounting frame, and the rear end of the positioning member is movably inserted into the guide slot and can move up and down relative to the guide slot;

[0013] A connecting stud is provided at the rear end of the positioning member. The connecting stud extends rearward through the through slot. A locking nut is threadedly connected to the connecting stud. The locking nut is fixed to the rear end surface of the mounting bracket.

[0014] Compared to the prior art, the present invention features a mounting bracket equipped with a support assembly for supporting the electrofusion pipe fitting, and a press-fit assembly for pressing the conductive pins into the fittings. The press-fit assembly is configured to be pneumatically or electrically driven to precisely control the press-fit depth of the conductive pins. The electrofusion pipe fitting is fixedly supported by the support assembly, and then the conductive pins within the mounting column are press-fitted using the press-fit assembly. The press-fit assembly is pneumatically or electrically driven to precisely control the press-fit depth of the conductive pins, resolving the issue of inconsistent conductive pin depths in prior manual press-fitting methods, which can lead to poor contact between the electrofusion welder and the conductive pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 2 for Figure 1 A in the middle is an enlarged structural diagram;

[0017] Figure 3 This is one of the three-dimensional structural diagrams of the present utility model;

[0018] Figure 4 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the electric fusion pipe fitting. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] See also Figure 1-Figure 5An assembly device for an electrofusion pipe fitting includes a machine platform 10, a mounting frame 20 provided on the machine platform 10, a support assembly 30 for supporting the electrofusion pipe fitting 100 provided on the mounting frame 20, and a press-fit assembly 40 for pressing a conductive needle 102 into the electrofusion pipe fitting 100 provided on the mounting frame 20;

[0022] The press-fitting assembly 40 is configured to be driven pneumatically or electrically to precisely control the press-fitting depth of the conductive pins 102 .

[0023] In the utility model, the electric fusion pipe fitting is fixedly supported by the support assembly, and then the conductive pin located in the mounting column is press-fitted by the press-fitting assembly. The press-fitting assembly is driven pneumatically or electrically, and can accurately control the press-fitting depth of the conductive pin, so as to solve the problem of poor contact between the electric fusion welding machine and the conductive pin due to uneven depth of the conductive pin in the existing manual press-fitting method.

[0024] See also Figure 2 The support assembly 30 includes a fixing rod 310 fixedly arranged on the mounting frame 20 , and a supporting block 320 is provided on the fixing rod 310 to fit the inner wall of the electrofusion pipe 100 .

[0025] The electrofusion pipe fitting 100 is plugged into and matched with the fixing rod 310 so that the inner wall of the electrofusion pipe fitting 100 fits against the upper surface of the support block 320 to form a support.

[0026] See also Figure 2 The support block 320 has an arcuate surface that contacts the inner wall of the electrofusion pipe fitting 100. A stop plate 330 is fixed to the fixing rod 310 and is positioned to contact the end of the electrofusion pipe fitting 100. The stop plate 330 constrains the insertion position of the electrofusion pipe fitting 100, thereby aligning the mounting post 101 of the electrofusion pipe fitting 100 with the cylinder shaft 420.

[0027] See also Figure 2 The press-fitting assembly 40 includes a cylinder 410 disposed above the supporting assembly 30 , and the cylinder 410 drives the cylinder shaft 420 to drive the conductive needle 102 to be pressed into the electrofusion pipe fitting 100 .

[0028] During the production of the electrofusion pipe fitting 100, welding equipment is used to weld the internal electrofusion coil to the conductive pin 102. The conductive pin 102 is then manually pre-inserted into the mounting post 101. The electrofusion pipe fitting 100 is then socketed onto the support assembly 30. The cylinder 410 is then activated, driving the cylinder shaft 420 to move to a predetermined distance, simultaneously press-fitting the conductive pin 102 into the mounting post 101.

[0029] See also Figures 2 to 4 The mounting bracket 20 is provided with a positioning member 220. A positioning slot 250 is provided on the end of the positioning member 220 facing the electrofusion pipe fitting 100. The front side of the positioning slot 250 is open. The mounting post 101 of the electrofusion pipe fitting 100 engages with the positioning slot 250 from front to back. The cooperation between the positioning slot 250 and the mounting post 101 effectively ensures that the conductive pin 102 is aligned with the cylinder shaft 420, facilitating downward pressure of the cylinder shaft 420 to press-fit the conductive pin 102.

[0030] See also Figure 2 The mounting frame 20 is provided with a through slot 210 extending from front to back. A guide slot 211 is provided on the front surface of the mounting frame 20, interconnected with the through slot 210. The rear end of the positioning member 220 is movably inserted into the guide slot 211 and can move up and down relative to the guide slot 211. A connecting stud 230 is provided at the rear end of the positioning member 220. The connecting stud 230 extends rearward through the through slot 210 and is threadedly connected to a locking nut 240, which is affixed to the rear end of the mounting frame 20. In this embodiment, when the locking nut 240 is loosened, the positioning member 220 and the connecting stud 230 can move up and down relative to the mounting frame 20 for position adjustment. This adjustment is intended to adjust the position of electrofusion pipe fittings 100 of different thicknesses or specifications. After adjustment is completed, the locking nut 240 can be tightened to clamp the mounting frame 20 together with the locking nut 240 and the positioning member 220, thereby fixing the position.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An assembly device for electrofusion pipe fittings, characterized in that: The invention comprises a machine (10), wherein a mounting frame (20) is provided on the machine (10), a supporting assembly (30) for supporting an electric fusion pipe fitting (100) is provided on the mounting frame (20), and a pressing assembly (40) for pressing a conductive needle (102) into the electric fusion pipe fitting (100) is provided on the mounting frame (20); The press-fitting assembly (40) is configured to be driven pneumatically or electrically to precisely control the press-fitting depth of the conductive needle (102).

2. The assembly device for electrofusion pipe fittings according to claim 1, characterized in that: The support assembly (30) comprises a fixing rod (310) fixedly arranged on the mounting frame (20), and a supporting block (320) is provided on the fixing rod (310) and is in contact with the inner wall of the electrofusion pipe (100).

3. The assembly device for electrofusion pipe fittings according to claim 2, characterized in that: The wall surface of the support block (320) that fits the inner wall of the electrofusion pipe (100) is an arc-shaped surface; A limiting plate (330) is fixedly provided on the fixing rod (310) and is positioned in contact with the end of the electrofusion pipe (100).

4. The assembly device for electrofusion pipe fittings according to claim 1, characterized in that: The press-fitting assembly (40) comprises a cylinder (410) arranged above the supporting assembly (30), and the cylinder (410) drives a cylinder shaft (420) to drive a conductive needle (102) to be pressed into the electric fusion pipe (100).

5. The assembly device for electrofusion pipe fittings according to claim 4, characterized in that: The mounting frame (20) is provided with a positioning piece (220), and a positioning groove (250) is provided at one end of the positioning piece (220) facing the electrofusion pipe fitting (100). The front side of the positioning groove (250) is opened, and the mounting column (101) of the electrofusion pipe fitting (100) is positioned and plugged into the positioning groove (250) from front to back.

6. The assembly device for electrofusion pipe fittings according to claim 5, characterized in that: The mounting frame (20) is provided with a through slot (210) running through the front and rear sides, and a guide slot (211) communicating with the through slot (210) is provided on the front surface of the mounting frame (20), and the rear end of the positioning member (220) is movably inserted into the guide slot (211) and can move up and down relative to the guide slot (211); A connecting stud (230) is provided at the rear end of the positioning member (220), and the connecting stud (230) extends rearward through the through slot (210). The connecting stud (230) is threadedly connected to a locking nut (240), and the locking nut (240) is fixed to the rear end surface of the mounting frame (20).