Plastic pipe welding machine

Abstract

The utility model relates to the technical field of plastic pipe welding, in particular to a plastic pipe welding machine which comprises a base table and a heating mechanism, a first sliding groove is formed in the base table, a pair of first sliding blocks are symmetrically arranged in the first sliding groove, the pair of first sliding blocks are fixedly connected with movable placing tables respectively, and the movable placing tables are arranged on the base table. A pair of movable placing tables is arranged on the base table, round holes are formed in the pair of movable placing tables, plastic pipes are placed in the round holes, second sliding grooves are formed in the inner walls of the round holes, clamping and fixing mechanisms are arranged in the second sliding grooves, a mounting table is arranged at one end of the base table, and a leveling mechanism is arranged on the mounting table. When the gear at the output end of the third motor is in meshing transmission with the rack fixedly connected to the mounting cylinder, the mounting cylinder drives the circular pipe to be spirally fed in the plastic pipe, and a protrusion at the joint of the inner wall of the plastic pipe enters a pipe opening of the circular pipe in a molten state; and the joint of the inner walls of the extruded and butted plastic pipes can be conveniently leveled.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe welding, in particular to a plastic pipe welding machine. Background Art

[0002] As an important part of chemical building materials, plastic pipes are widely accepted by users for their superior performance, hygiene, environmental protection, low consumption and other advantages. They mainly include UPVC drainage pipes, UPVC water supply pipes, aluminum-plastic composite pipes, polyethylene (PE) water supply pipes, and polypropylene PPR hot water pipes. In the use of plastic pipes, welding machines are often needed to perform hot-melt welding on the pipes.

[0003] In the prior art, when hot-melt welding two sections of plastic pipes, the two sections are hot-melted separately, and then extruded and butted. After the hot-melted pipes are cooled, the welding of the plastic pipes is completed. There are many process steps and much manpower is consumed. In addition, the joints of the plastic pipes after the hot-melt connection at both ends have bulges on the inner and outer walls of the pipes due to the extrusion and butt connection, which is not conducive to the flow of materials in the pipes.

[0004] For this purpose, we designed a plastic pipe welding machine. Utility Model Content

[0005] The utility model aims to solve the problem that the prior art has many process steps, consumes a lot of manpower, and the connection of the plastic pipe after the two ends are hot-melt connected causes bulges on the inner and outer walls of the pipe due to extrusion and docking, which is not conducive to the flow of materials in the pipe. A plastic pipe welding machine is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A plastic pipe welding machine comprises a base and a heating mechanism, wherein a first slide groove is provided on the base, a pair of first sliders are symmetrically provided in the first slide groove, a movable placement platform is fixedly connected to the pair of first sliders respectively, a circular hole is provided on the pair of movable placement platforms, a plastic pipe is placed in the circular hole, a second slide groove is provided on the inner wall of the circular hole, a clamping and fixing mechanism for clamping and fixing different plastic pipes within a certain size range is provided in the second slide groove, a mounting platform is provided at one end of the base, and a leveling mechanism for smoothing and leveling the inner wall protrusions of the plastic pipe after hot-melt connection is provided on the mounting platform.

[0008] Preferably, a first motor is fixedly mounted on the side wall of the base, a first forward and reverse screw is placed in the first slide groove, the output end of the first motor is coaxially fixedly connected to the first forward and reverse screw, and a pair of first sliding blocks are respectively provided with first threaded holes corresponding to the first forward and reverse screw threads.

[0009] Preferably, the clamping and fixing mechanism comprises:

[0010] A second forward and reverse screw and a second motor, wherein the second motor is fixedly mounted on a side wall of the movable placement platform, the second forward and reverse screw is arranged in a second slide slot, and an output end of the second motor is coaxially fixedly connected with the second forward and reverse screw;

[0011] A pair of second sliders and a pair of arc-shaped fixed plates, the pair of second sliders are symmetrically arranged in the second slide groove, the pair of second sliders are respectively fixedly connected to the pair of arc-shaped fixed plates, and the pair of second sliders are respectively provided with second threaded holes corresponding to the threads of the second positive and negative screw rods.

[0012] Preferably, a hydraulic cylinder is fixedly mounted on the base, an output end of the hydraulic cylinder is fixedly connected to the heating mechanism, and a pair of the movable placement platforms are symmetrically arranged on both sides of the heating mechanism.

[0013] Preferably, the leveling mechanism comprises:

[0014] A fixed cylinder, a mounting cylinder, a third motor and a gear, wherein the fixed cylinder is arranged on the mounting platform through a mounting pillow block, a mounting cavity is arranged inside the fixed cylinder, the mounting cylinder is coaxially arranged inside the fixed cylinder, a connecting disk is coaxially fixedly connected to the mounting cylinder, a side wall of the connecting disk is tightly arranged with an inner wall of the mounting cavity of the fixed cylinder, the third motor is fixedly arranged on the inner wall of the mounting cavity, and an output end of the third motor is coaxially fixedly connected with the gear;

[0015] A spiral guide groove, a pair of guide rods and a rack, wherein the spiral guide groove is arranged on the inner wall of the installation cavity, a pair of the guide rods are symmetrically arranged on the side wall of the connecting disk, and the pair of guide rods both slide in the spiral guide groove, one end of the connecting disk away from the installation cylinder is fixedly connected to the rack, the gear and the rack are meshed for transmission, and the installation cylinder is coaxially arranged with the circular hole.

[0016] Preferably, the bottom of the base is provided with a plurality of universal wheels for facilitating the movement of the base.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model places two sections of plastic pipes on a pair of movable placement tables respectively, and drives the second forward and reverse screws to rotate through the output end of the second motor, so that a pair of second slide blocks in the second slide groove respectively drive a pair of arc-shaped fixing plates to clamp and fix the side walls of the plastic pipe, and is suitable for clamping and fixing different plastic pipes within a certain size range.

[0019] 2. When the output end gear of the third motor is meshed with the rack fixedly connected to the mounting tube, the mounting tube drives the round tube to be spirally fed in the plastic tube, and the protrusion at the connection of the inner wall of the plastic tube enters the tube mouth in a molten state, so that the connection of the inner wall of the plastic tube after extrusion and docking is smoothed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a plastic pipe welding machine proposed by the utility model;

[0021] Figure 2 This is a top view of a plastic pipe welding machine proposed by the utility model;

[0022] Figure 3 This is a front view of a plastic pipe welding machine proposed by the utility model;

[0023] Figure 4 The utility model is a schematic diagram of a leveling mechanism of a plastic pipe welding machine.

[0024] In the figure: 1. base; 2. first slide groove; 3. movable placement table; 4. second slide groove; 5. second forward and reverse screw rod; 6. second motor; 7. arc-shaped fixed plate; 8. first motor; 9. hydraulic cylinder; 10. heating mechanism; 11. mounting table; 12. fixed cylinder; 13. mounting cylinder; 14. connecting plate; 15. guide rod; 16. spiral guide groove; 17. third motor; 18. gear; 19. rack; 20. universal wheel; 21. first forward and reverse screw rod. DETAILED DESCRIPTION

[0025] Reference Figure 1-Figure 4 A plastic pipe welding machine comprises a base 1 and a heating mechanism 10, a first slide groove 2 is provided on the base 1, a pair of first sliders are symmetrically provided in the first slide groove 2, a movable placing platform 3 is fixedly connected to the pair of first sliders respectively, a circular hole is provided on the pair of movable placing platforms 3, a plastic pipe is placed in the circular hole, a second slide groove 4 is provided on the inner wall of the circular hole, a clamping and fixing mechanism is provided in the second slide groove 4, and the clamping and fixing mechanism is used to clamp and fix different plastic pipes within a certain size range;

[0026] The clamping and fixing mechanism includes a second forward and reverse screw rod 5 and a second motor 6. The second motor 6 is fixedly installed on the side wall of the movable placement platform 3. The second forward and reverse screw rod 5 is arranged in the second slide groove 4. The output end of the second motor 6 is coaxially fixedly connected with the second forward and reverse screw rod 5. A pair of second sliders are symmetrically arranged in the second slide groove 4. The pair of second sliders are respectively fixedly connected with a pair of arc-shaped fixing plates 7. Second threaded holes are respectively opened on the pair of second sliders corresponding to the threads of the second forward and reverse screw rod 5. The second forward and reverse screw rod 5 is driven to rotate by the output end of the second motor 6, so that the pair of second sliders in the second slide groove 4 respectively drive a pair of arc-shaped fixing plates 7 to clamp and fix the side wall of the plastic tube.

[0027] Reference Figure 1 and Figure 4 A mounting platform 11 is provided at one end of the base 1, and a leveling mechanism is provided on the mounting platform 11. The leveling mechanism is used to smooth and level the protrusions on the inner wall of the plastic pipe after hot-melt connection, which is beneficial to the flow of materials in the pipeline;

[0028] The leveling mechanism includes a fixed cylinder 12, a mounting cylinder 13, a third motor 17 and a gear 18. The fixed cylinder 12 is arranged on the mounting platform 11 through a mounting pillow block. A mounting cavity is arranged inside the fixed cylinder 12. The mounting cylinder 13 is coaxially arranged inside the fixed cylinder 12. The mounting cylinder 13 is coaxially fixedly connected with a connecting disk 14. The side wall of the connecting disk 14 is tightly arranged with the inner wall of the mounting cavity of the fixed cylinder 12. The third motor 17 is fixedly arranged on the inner wall of the mounting cavity. The output end of the third motor 17 is coaxially fixedly connected with the gear 18. The spiral guide groove 16 is arranged on the inner wall of the mounting cavity.

[0029] A pair of guide rods 15 are symmetrically arranged on the side wall of the connecting disk 14, and the pair of guide rods 15 both slide in the spiral guide groove 16. The end of the connecting disk 14 away from the mounting cylinder 13 is fixedly connected to the rack 19, and the gear 18 is meshed with the rack 19 for transmission. The mounting cylinder 13 is coaxially arranged with the circular hole. A circular tube that matches the inner diameter of the plastic tube is coaxially fixedly arranged on the mounting cylinder 13, and the output end gear 18 of the third motor 17 is meshed with the rack 19 fixedly connected to the mounting cylinder 13. When the mounting cylinder 13 drives the circular tube to be spirally fed in the plastic tube, the protrusion at the connection of the inner wall of the plastic tube enters the tube mouth in the molten state, which is convenient for smoothing the connection of the inner wall of the plastic tube after extrusion and docking.

[0030] Reference Figure 1 and Figure 3A first motor 8 is fixedly installed on the side wall of the base 1, and a first forward and reverse screw rod 21 is placed in the first slide groove 2. The output end of the first motor 8 is coaxially fixedly connected with the first forward and reverse screw rod 21, and a pair of first sliding blocks are respectively provided with first threaded holes corresponding to the first forward and reverse screw rod 21 threads. The first forward and reverse screw rod 21 is driven to rotate by the output end of the first motor 8, so that a pair of movable placement platforms 3 move relatively in the first slide groove 2 through the first sliding block at the bottom, thereby realizing the extrusion and docking of two sections of heated and melted plastic pipes.

[0031] Reference Figure 1 and Figure 3 A hydraulic cylinder 9 is fixedly installed on the base 1, and the output end of the hydraulic cylinder 9 is fixedly connected to the heating mechanism 10. A pair of movable placement platforms 3 are symmetrically arranged on both sides of the heating mechanism 10. The heating mechanism 10 is pushed to move between the two sections of plastic pipes through the output end of the hydraulic cylinder 9, and the two ends of the two sections of plastic pipes that are close to each other are heated and melted at the same time. After heating and melting, the heating mechanism 10 is retracted, and a plurality of universal wheels 20 are provided at the bottom of the base 1 to facilitate the movement of the base 1.

[0032] The working principle of the utility model is as follows:

[0033] By placing two sections of plastic pipes on a pair of movable placement platforms 3 respectively, the output end of the second motor 6 drives the second forward and reverse screw rod 5 to rotate, so that a pair of second sliders in the second slide groove 4 respectively drive a pair of arc-shaped fixing plates 7 to clamp and fix the side walls of the plastic pipe, and the output end of the hydraulic cylinder 9 pushes the heating mechanism 10 to move between the two sections of plastic pipes, and heats and melts the two ends of the two sections of plastic pipes that are close to each other. After heating and melting, the heating mechanism 10 is retracted, and then the output end of the first motor 8 drives the first forward and reverse screw rod 21 to rotate, so that the pair of movable placement platforms 3 move relatively in the first slide groove 2 through the first slider at the bottom, so as to realize the extrusion and docking of the two sections of heated and melted plastic pipes;

[0034] When the two sections of heated and melted plastic pipes are extruded and butted, a round pipe that matches the inner diameter of the plastic pipe is coaxially fixed on the mounting cylinder 13, and a spiral guide groove 16 is provided in the fixing cylinder 12. A pair of guide rods 15 are symmetrically provided on the side wall of the mounting cylinder 13. When the output end gear 18 of the third motor 17 is meshed with the rack 19 fixedly connected to the mounting cylinder 13, the mounting cylinder 13 drives the round pipe to be spirally fed in the plastic pipe, and the protrusion at the connection of the inner wall of the plastic pipe enters into the pipe mouth of the round pipe in a molten state, so as to make it easy to smooth the connection of the inner wall of the plastic pipe after extrusion and butt joint.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic pipe welding machine, comprising a base (1) and a heating mechanism (10), characterized in that: The base (1) is provided with a first slide groove (2), a pair of first sliders are symmetrically arranged in the first slide groove (2), a movable placement platform (3) is fixedly connected to the pair of first sliders respectively, a circular hole is provided on the pair of movable placement platforms (3), a plastic tube is placed in the circular hole, a second slide groove (4) is provided on the inner wall of the circular hole, a clamping and fixing mechanism for clamping and fixing different plastic tubes within a certain size range is provided in the second slide groove (4), a mounting platform (11) is provided at one end of the base (1), and a leveling mechanism for smoothing the inner wall protrusions of the plastic tube after hot-melt connection is provided on the mounting platform (11).

2. A plastic pipe welding machine according to claim 1, characterized in that: A first motor (8) is fixedly mounted on the side wall of the base (1); a first forward and reverse screw rod (21) is placed in the first slide groove (2); an output end of the first motor (8) is coaxially fixedly connected to the first forward and reverse screw rod (21); and a pair of first sliding blocks are provided with first threaded holes corresponding to the first forward and reverse screw rod (21) threads.

3. A plastic pipe welding machine according to claim 1, characterized in that: The clamping and fixing mechanism comprises: A second forward and reverse screw rod (5) and a second motor (6), wherein the second motor (6) is fixedly mounted on a side wall of the movable placement platform (3), the second forward and reverse screw rod (5) is arranged in a second slide groove (4), and the output end of the second motor (6) is coaxially fixedly connected to the second forward and reverse screw rod (5); A pair of second sliding blocks and a pair of arc-shaped fixing plates (7), wherein the pair of second sliding blocks are symmetrically arranged in the second sliding groove (4), the pair of second sliding blocks are respectively fixedly connected to the pair of arc-shaped fixing plates (7), and the pair of second sliding blocks are respectively provided with second threaded holes corresponding to the threads of the second forward and reverse screw rods (5).

4. A plastic pipe welding machine according to claim 1, characterized in that: A hydraulic cylinder (9) is fixedly mounted on the base (1), an output end of the hydraulic cylinder (9) is fixedly connected to a heating mechanism (10), and a pair of movable placement platforms (3) are symmetrically arranged on both sides of the heating mechanism (10).

5. A plastic pipe welding machine according to claim 1, characterized in that: The leveling mechanism comprises: A fixed cylinder (12), a mounting cylinder (13), a third motor (17) and a gear (18), wherein the fixed cylinder (12) is arranged on the mounting platform (11) via a mounting pillow block, a mounting cavity is arranged inside the fixed cylinder (12), the mounting cylinder (13) is coaxially arranged inside the fixed cylinder (12), the mounting cylinder (13) is coaxially fixedly connected with a connecting disk (14), the side wall of the connecting disk (14) is tightly arranged with the inner wall of the mounting cavity of the fixed cylinder (12), the third motor (17) is fixedly arranged on the inner wall of the mounting cavity, and the output end of the third motor (17) is coaxially fixedly connected with the gear (18); A spiral guide groove (16), a pair of guide rods (15) and a rack (19), wherein the spiral guide groove (16) is arranged on the inner wall of the installation cavity, the pair of guide rods (15) are symmetrically arranged on the side wall of the connecting disk (14), the pair of guide rods (15) both slide in the spiral guide groove (16), one end of the connecting disk (14) away from the installation cylinder (13) is fixedly connected to the rack (19), the gear (18) and the rack (19) are meshed for transmission, and the installation cylinder (13) is coaxially arranged with the circular hole.

6. A plastic pipe welding machine according to claim 1, characterized in that: The bottom of the base (1) is provided with a plurality of universal wheels (20) for facilitating the movement of the base (1).

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