Pipeline welding machine

Abstract

A pipeline welding machine comprises a vertically-arranged electric heating assembly and a driving arm which is connected with the electric heating assembly and drives the electric heating assembly to move, horizontal sliding rails in the left-right direction are oppositely arranged on the left side and the right side of the electric heating assembly, and each horizontal sliding rail is provided with a pipeline clamping assembly. Each pipeline clamping assembly is driven by a motor to slide left and right on the corresponding sliding rail, the electric heating assemblies, the driving arms and the motors are all connected with a power source through corresponding controllers, each electric heating assembly comprises two base plates which are oppositely arranged left and right, the normal directions of the base plates are in the left-right direction, and connecting pieces are arranged between the inner sides of the two base plates in the left-right direction. The driving arms are connected with the connecting pieces, electric heating plates are embedded in the outer side faces, in the left-right direction, of the two base plates, and the two electric heating plates are connected with a power source through a temperature adjusting controller. Therefore, the temperatures of the two sides can be controlled respectively, the welding surfaces of the two to-be-welded pipelines are in a consistent molten state under the same heating time, and the welding effect is good.

Description

Technical Field

[0001] The utility model relates to a pipeline welding machine. Background Art

[0002] Pipe welding machines, used for hot-melt butt welding of plastic pipes, are well-established and structurally similar machines. They all include a double-sided electric heating assembly and two horizontal slides, each with a pipe clamping assembly. The clamping assemblies clamp the pipes to be welded, then heat both ends of the pipes simultaneously with the electric heating assembly. The electric heating assembly is then removed, and the two pipes are pressed together and welded along the slides. For details on the structure, see Chinese Patents CN96246010.9 and CN201310698773.7. However, existing techniques suffer from the problem that, while the two pipes to be welded may have identical dimensions, they may come from different manufacturers, or even from different batches of the same manufacturer. This can lead to slight differences in formulation and component content, resulting in different melting points. Conventional pipe welding machines operate at the same temperature on both sides, preventing the ability to control the heating temperature independently. This results in the pipes on either side of the electric heating assembly melting at different temperatures at the same time, resulting in poor welding results. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pipe welding machine, in which the temperature on both sides of the electric heating component are independently controlled, and the specific temperature of the electric heating plates on both sides can be flexibly adjusted. When in use, the welding surfaces of the two pipes to be welded can reach a consistent molten state within the same heating time, and the welding effect is good.

[0004] In order to solve the above technical problems, the utility model provides a pipe welding machine, including a vertically arranged electric heating component, a driving arm connected to the electric heating component and driving the electric heating component to move, horizontal slide rails running left and right are provided on the left and right sides of the electric heating component, each horizontal slide rail is provided with a pipe clamping component, each pipe clamping assembly is driven by a motor to slide left and right on the corresponding slide rail, the electric heating component, the driving arm, and the motor are all connected to the power supply through the corresponding controller, the electric heating component includes two substrates arranged opposite to each other on the left and right and with normal directions running left and right, a connecting piece is provided between the inner sides of the two substrates along the left and right directions, the driving arm is connected to the connecting piece, the left and right outer sides of the two substrates are embedded with electric heating plates, and the two electric heating plates are respectively connected to the power supply through temperature control controllers.

[0005] The method for using the above-mentioned pipe welding machine comprises the following steps:

[0006] (1) Using the corresponding pipe clamping components, fix the two pipes to be welded on the two slide rails respectively, and make one end of each pipe to be welded abut against the electric heating plate on the corresponding side of the electric heating assembly;

[0007] (2) According to the melting point characteristics of the two pipes to be welded, the heating temperatures of the two electric heating plates are set by the temperature controller respectively, so that the welding surfaces of the two pipes to be welded reach a consistent melting state under the same heating time;

[0008] (3) After reaching the molten state, the electric heating component is lifted by the driving arm, and then the two pipe clamping components are controlled to drive the corresponding pipes to move toward each other to complete the welding.

[0009] Advantages of this invention: The electric heating assembly of the pipe welding machine provided by this invention has independent temperature control on both sides, allowing the specific temperature of the electric heating plates on both sides to be flexibly adjusted according to the melting point of the pipe being welded. Using this pipe welding machine is simple and easy to use, and the welding surfaces of the two pipes to be welded can be brought to a consistent molten state within the same heating time, resulting in excellent welding results. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the pipeline welding machine in the utility model.

[0011] Figure 2 It is a structural schematic diagram of the electromechanical heating component for pipeline welding in the utility model. DETAILED DESCRIPTION

[0012] See also Figure 1-Figure 2 , a pipe welding machine, comprising a vertically arranged electric heating component 1, a driving arm 2 connected to the electric heating component 1 and driving the electric heating component 1 to move, horizontal slide rails 3 are provided on the left and right sides of the electric heating component 1, each horizontal slide rail 3 is provided with a pipe clamping component 4, each pipe clamping component 4 is driven by a motor to slide left and right on the corresponding slide rail 3 (the horizontal slide rail 3 and the pipe clamping component 4 are mature products in this field, and this application has no improvement here, so they are not described in detail here, and are only schematically shown in the accompanying drawings). The driving arm 2 and the motor are connected to the power supply through the corresponding controller. The electric heating component 1 includes two left and right oppositely arranged substrates 11 with normal directions both running left and right. A connecting piece 12 is provided between the inner sides of the two substrates 11 along the left and right directions. The driving arm 2 is connected to the connecting piece 12. The left and right outer sides of the two substrates 11 are embedded with electric heating plates 13, and the two electric heating plates 13 are respectively connected to the power supply through a temperature control controller (the temperature control controller and the power supply are existing mature technologies, which are not described in detail in this application and are not shown in the drawings).

[0013] The method for using the above-mentioned pipe welding machine comprises the following steps:

[0014] (1) Using the corresponding pipe clamping assembly 4, fix the two pipes to be welded on the two slide rails 3 respectively, and make one end of each pipe to be welded abut against the electric heating plate 13 on the corresponding side of the electric heating assembly 1;

[0015] (2) According to the melting point characteristics of the two pipes to be welded, the heating temperatures of the two electric heating plates 13 are set by the temperature controller respectively so that the welding surfaces of the two pipes to be welded reach a consistent melting state under the same heating time;

[0016] (3) After reaching the molten state, the electric heating component 1 is lifted by the driving arm 2, and then the two pipe clamping components 4 are controlled to drive the corresponding pipes to move toward each other to complete the welding.

[0017] Advantages of the present invention: The electric heating assembly 1 of the pipe welding machine provided by the present invention has independent temperature control on both sides, allowing the specific temperature of the electric heating plates 13 on both sides to be flexibly adjusted according to the melting point of the pipes actually being welded. The pipe welding process is simple and easy to use, and the welding surfaces of the two pipes to be welded can be brought to a consistent molten state within the same heating time, resulting in excellent welding results.

Claims

1. A pipe welding machine comprising a vertically arranged electric heating assembly, a drive arm connected to the electric heating assembly and driving the electric heating assembly, horizontal slide rails extending left and right, opposite to each other on the left and right sides of the electric heating assembly, a pipe clamping assembly mounted on each horizontal slide rail, each pipe clamping assembly driven by a motor to slide left and right on the corresponding slide rail, the electric heating assembly, the drive arm, and the motor all connected to a power source via corresponding controllers, and characterized by: The electric heating assembly includes two substrates arranged opposite to each other on the left and right sides and with normal directions running left and right. A connecting piece is provided between the inner sides of the two substrates along the left and right directions, and the driving arm is connected to the connecting piece. The outer sides of the two substrates on the left and right directions are both embedded with electric heating plates, and the two electric heating plates are respectively connected to the power supply through a temperature control controller.

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