Plastic welding device capable of preventing dislocation

Abstract

The invention relates to the field of plastic processing, in particular to an anti-dislocation plastic welding device which comprises a base, at least two groups of positioning pieces arranged on the upper end face of the base and used for fixing a plastic pipe and two groups of heating pieces arranged on the upper end face of the base and located between the positioning pieces. The adjusting blocks are combined to form an annular plate body, a first rope penetrates between the adjusting blocks on the same diameter of the plate body, the tail end of the first rope is fixed to the adjusting block closest to the tail end of the inner ring, an inclined table is arranged on one side of every two adjacent adjusting blocks, and the inclined tables of the two heating pieces are oppositely arranged; a heating plate is arranged on the side, away from the inclined table, of the adjusting block. Through cooperation of the adjusting block and the first rope, the whole heating piece can be driven to contract by pulling the first rope, so that a bent storage state is formed, and in the state, butt joint can be carried out without overall disassembly of the heating piece.

Description

Technical Field

[0001] The invention relates to the field of plastic processing, and in particular to a plastic welding device capable of preventing dislocation. Background Art

[0002] Plastic welding usually refers to heating and melting the contact surface of plastic products to make them melted and soft, and then docking the two plastic products. After cooling, the two can be fixed. For the installation and connection of pipes, especially long-term water pipes, various synthetic plastics are usually used. For this type of pipe, welding devices are indispensable. Its structure usually includes a base for support, a clamp for the pipe, and a heating element placed in the middle. Usually, two groups of pipes are fixed on the clamps on both sides respectively, and the movement of the clamps is used to control the pipe contact with the heating element in the middle. When the heating is completed, the heating element is removed, and then the two pipes are docked at the position where the heating surface is completed, thereby completing the welding operation. This structural design has the following problems:

[0003] There is no connection between the heating element and the base and the clamping element, which means that the heating element needs to be reinstalled each time welding is performed. When this installation method is used for a long time, the matching recess between the heating element and the base will wear out, which may cause the heating element to tilt, loosen, etc., which may easily lead to uneven heating of the pipe contact surface and affect the final welding state. Summary of the invention

[0004] The present invention aims at the deficiencies in the prior art and provides the following technical solutions:

[0005] A dislocation-proof plastic welding device comprises a base, at least two groups of positioning pieces arranged on the upper end surface of the base for fixing plastic pipes, and two groups of heating pieces arranged on the upper end surface of the base and located between the positioning pieces.

[0006] Specifically, the heating element includes a plurality of adjusting blocks, and the adjusting blocks are combined to form a circular plate body. A rope is inserted between the adjusting blocks on the same diameter of the plate body, and the end of the rope is fixed to the adjusting block closest to the end of the inner circle. An inclined platform is provided on one side of two adjacent adjusting blocks, and the inclined platforms of the two heating elements are arranged opposite to each other. A heating plate is provided on the side of the adjusting block away from the inclined platform. When an external force pulls the rope, the inclined platforms between the two adjacent adjusting blocks fit together to form a bent and stored state.

[0007] As an improvement of the above technical solution, the base includes at least two side panels and a plurality of positioning rods, both ends of the positioning rods are respectively fixedly connected with at least one side panel, the positioning rods are horizontally arranged, and the side panels are vertically arranged.

[0008] As an improvement of the above technical solution, the positioning member includes two groups of arc plates, the arc plates are combined to form a circular ring shape, connecting parts and fixing parts are provided at both ends of the two arc plates, a hinged part is provided at the connecting part of the two arc plates, the fixing parts of the two arc plates are fitted together, and a positioning bolt is provided that passes through the two fixing parts.

[0009] As an improvement of the above technical solution, an outer wall of the arc plate is integrally formed with an ear plate, and the ear plate is used to be connected with a rod body provided on the base so that the arc plate can move linearly along the rod body.

[0010] As an improvement of the above technical solution, a plurality of nested inner rings 1 are embedded in the inner side of the arc plate at equal intervals, the inner wall of the inner ring 1 is provided with a groove, the outer wall of the inner ring 1 is provided with a protrusion, the protrusion is stuck in the groove, a bolt is provided through the center position of the inner ring 1, and the end of the bolt is fixed to the internal thread of the arc plate.

[0011] As an improvement of the above technical solution, the heating element includes a positioning ring body vertically arranged on the base, the interior of the positioning ring body is provided with an annular inner groove, one side of the inner groove is provided with an outer side that penetrates through the positioning ring body, an inner ring 2 is arranged inside the inner groove, the inner side wall of the inner ring 2 is fixed to one end of the rope 1, and a paddle is integrally formed on the other side of the inner ring 2, and the other end of the paddle penetrates through the adjustment groove to the outside.

[0012] As an improvement of the above technical solution, a plurality of ear plates are integrally formed on the lower side of the outer wall of the positioning ring body, and the ear plates are intersected with the rod body on the base, and the positioning ring body can move linearly along the rod body of the base.

[0013] As an improvement of the above technical solution, a connecting rod is integrally formed between the two paddles.

[0014] As an improvement of the above technical solution, a second rope is provided inside the adjusting block on the same diameter of the plate body on one side close to the heating plate, and the end of the second rope is fixed to the adjusting block closest to the end of the inner circle.

[0015] As an improvement of the above technical solution, the inner groove, inner ring 2, adjustment groove, and paddle are provided in two groups in parallel, wherein the inner ring 2 in one group is fixed to rope 1, and the inner ring 2 in the other group is fixed to rope 2.

[0016] Beneficial effects of the present invention:

[0017] Through the cooperation between the adjusting block and the rope one, combined with the inclined platform structure opened on one side of the adjusting block, a structure similar to an octopus tentacle is formed. In this way, only two sets of heating elements need to be set up. During subsequent heating, the rope one can be pulled to drive the entire heating element to shrink, thereby forming a bent and stored state. This state does not require the heating element to be disassembled as a whole. Although the overall cost is increased, the welding efficiency is higher and the wear problem of structural parts caused by long-term disassembly and assembly is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 for Figure 1 The enlarged structure diagram at A in the middle;

[0020] Figure 3 for Figure 1 The enlarged structure diagram at B in the middle;

[0021] Figure 4 A top view of the present invention;

[0022] Figure 5 for Figure 4 Isometric section view at aa in the middle;

[0023] Figure 6 for Figure 4 Plane section view at bb in the middle;

[0024] Figure 7 for Figure 6 Enlarged structural diagram at point C in the middle.

[0025] Figure numerals: 10, base; 11, side panel; 12, positioning rod; 20, positioning member; 21, arc plate; 22, inner ring one; 23, connecting portion; 231, hinged portion; 24, fixing portion; 25, ear plate; 30, heating member; 31, positioning ring body; 32, adjusting block; 321, ramp; 322, heating plate; 33, rope one; 34, rope two; 35, power supply line; 36, inner groove; 361, adjusting groove; 37, inner ring two; 371, paddle; 372, connecting rod. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0027] In the prior art, a welding device is usually used to weld plastic pipes. The structure of the device usually includes a base for support, a pipe clamp and a heating element placed in the middle. Usually, two groups of pipes are fixed on the clamps on both sides respectively, and the pipes are controlled to contact the heating element in the middle by moving the clamps. After heating is completed, the heating element is removed, and then the two pipes are butt-jointed at the positions where the heating surfaces are completed, thereby completing the welding operation. This structural design has the following problems:

[0028] There is no connection between the heating element and the base and the clamping element, which means that the heating element needs to be reinstalled each time welding is performed. When this installation method is used for a long time, the matching recess between the heating element and the base will wear out, which may cause the heating element to tilt, loosen, etc., which may easily lead to uneven heating of the pipe contact surface and affect the final welding state.

[0029] To solve the above problems, see Figures 1 to 7 , provides a plastic welding device that can prevent dislocation, including: a base 10, at least two groups of positioning members 20 arranged on the upper end surface of the base 10 for fixing the plastic pipe, and two groups of heating members 30 arranged on the upper end surface of the base 10 and located between the positioning members 20.

[0030] Specifically, the heating element 30 includes a plurality of adjusting blocks 32, which are combined to form a circular plate body, a rope 33 is inserted between the adjusting blocks 32 on the same diameter of the plate body, the end of the rope 33 is fixed to the adjusting block 32 closest to the end of the inner circle, and an inclined platform 321 is provided on one side of two adjacent adjusting blocks 32. The inclined platforms 321 of the two heating elements 30 are arranged opposite to each other, and a heating plate 322 is provided on the side of the adjusting block 32 away from the inclined platform 321. When an external force pulls the rope 33, the inclined platforms 321 between the two adjacent adjusting blocks 32 fit together to form a curved and stored state.

[0031] When heating, first fix the two tubes on the two positioning members 20 respectively, then control the heating plate 322 to heat, and then push the positioning member 20 until the end of the tube contacts the heating plate 322 for heating. When the heating is completed, a buffer space can be formed by the cooperation between the inclined platforms 321 set on the sides of the adjusting block 32. This buffer space can ensure that when the internal rope 33 is pulled upward, since the end of the rope 33 and the adjusting block 32 at the end are in a fixed state, while the other positions are in a penetrating state, in this case, the upward pulling of the rope 33 will cause the adjusting block 32 to tilt toward the side with the inclined platform 321. When the rope 33 is fully straightened, all the adjusting blocks 32 produce a vortex-shaped winding. In this case, the middle position can be opened. At this time, the ends of the two heated tubes can be directly pushed inward and then contact to complete the welding operation.

[0032] In the above process, since the adjusting block 32 is directly deflected inward, it will not squeeze the heated end of the tube body, and the flatness of the contact end of the tube body can be ensured. In addition, for the specific structure of the heating plate 322, it is powered by an additional power supply line 35, which is set at the center of the end surface of the adjusting block 32, such as Figure 2 As shown, a power supply line 35 is provided to provide power supply connection between the plurality of heating plates 322, and the power supply module can be connected to an external power source.

[0033] Further, the support structure of the base 10 is improved, please refer to Figure 1 and Figure 3 The base 10 includes at least two side panels 11 and a plurality of positioning rods 12. Both ends of the positioning rods 12 are fixedly connected with at least one side panel 11. The positioning rods 12 are arranged horizontally, and the side panels 11 are arranged vertically.

[0034] By setting a plurality of positioning rods 12 at the bottom for fixing, the positioning member 20 and the heating member 30 set on the base 10 can move along the positioning rods 12, and the stability of the connected structural members can be ensured by setting at least two positioning rods 12.

[0035] In order to facilitate the connection of the pipeline and ensure the stability of the connection position, please refer to Figure 1 and Figure 3 The positioning member 20 includes two groups of arc plates 21, which are combined to form a circular ring. Both ends of the two arc plates 21 are provided with connecting parts 23 and fixing parts 24. The connecting parts 23 of the two arc plates 21 are provided with hinged parts 231 for connection. The fixing parts 24 of the two arc plates 21 are fitted together, and positioning bolts are provided that pass through the two fixing parts 24.

[0036] The arc-shaped plates 21 cooperate to form a flipped buckling structure, so that the inserted pipe can be directly clamped and fixed, thereby ensuring the stability of the position of the pipe during the welding process.

[0037] In order to further improve the connection and cooperation between the positioning member 20 and the base 10, please refer to Figure 1 and Figure 3 Specifically, an outer wall of the arc plate 21 is integrally formed with an ear plate 25, and the ear plate 25 is used to be connected to a rod body provided on the base 10 so that the arc plate 21 can move linearly along the rod body.

[0038] The ear plate 25 is in penetrating cooperation with the rod body, that is, the positioning rod 12. Through this cooperation, the entire positioning member 20 can be moved on the positioning rod 12, ensuring the controllability of the positioning member 20 and facilitating the position adjustment of the pipeline in subsequent pipeline welding operations.

[0039] In order to facilitate the connection of the pipeline and ensure that the pipelines of different types and specifications have certain clamping and positioning functions, it is also necessary to improve the solution of the positioning member 20. For details, please refer to Figure 1 and Figure 3 A plurality of nested inner rings 22 are embedded in the inner side of the arc plate 21 at equal intervals. A groove is provided on the inner wall of the inner ring 22, and a protrusion is provided on the outer wall of the inner ring 22. The protrusion is inserted into the groove. A bolt is provided through the center of the inner ring 22, and the end of the bolt is fixed to the internal thread of the arc plate 21.

[0040] The position is limited by setting a plurality of inner rings 22 inside the arc plate 21, and the internal space is adjusted by the number of fixed inner rings 22. The more inner rings 22 are set inside, the smaller the specifications of the pipes that can be inserted and fixed are, and the fewer the inner rings 22 are set inside, the larger the specifications of the pipes that can be inserted and fixed are, which is convenient for fixing the pipes within a certain range.

[0041] In order to further improve the structure of the heating element 30, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 6 as well as Figure 7 The heating element 30 includes a positioning ring body 31 vertically arranged on the base 10, and an annular inner groove 36 is opened inside the positioning ring body 31. One side of the inner groove 36 is opened to the outer side of the positioning ring body 31, and an inner ring 2 37 is arranged inside the inner groove 36. The inner side wall of the inner ring 2 37 is fixed to one end of the rope 1 33, and a paddle 371 is integrally formed on the other side of the inner ring 2 37, and the other end of the paddle 371 passes through the adjustment groove 361 to the outside.

[0042] When the paddle 371 is pushed to move inside the adjustment groove 361, the inner ring 2 37 inside can be driven to rotate, and the rotating inner ring 2 37 will cause the rope 1 33 to be reeled or unreeled. In this process, the rope 1 33 will pull the adjustment block 32, thereby realizing the driving method of the paddle 371 to drive the adjustment block 32 to reel in. In this way, after the heating is completed, only the paddle 371 needs to be pushed to reel in the heating element 30 formed by all the adjustment blocks 32, thereby ensuring that the middle heating element 30 will not be affected when the two pipes are welded.

[0043] In addition, the outermost support is provided by the positioning ring body 31, and the inner adjustment block 32 is set to a state similar to a trapezoidal structure. The end with a smaller length is close to the center of the circle, and the end with a longer length is far away from the center of the circle. After this structure is combined, it forms a circular ring state that diffuses outward, thereby constraining each other, ensuring the stability between the structural members, and avoiding the problem of dispersion. In addition, a fixing part can be set on the outermost adjustment block 32 to prevent the outermost adjustment block 32 from changing, thereby achieving the function of ensuring the stability of the adjustment block 32.

[0044] Similarly, in order to ensure that the positioning ring body 31 can move on the base 10, for details, please refer to Figures 1 to 3 A plurality of ear plates 25 are integrally formed on the lower side of the outer wall of the positioning ring body 31 , and the ear plates 25 are intersected with the rod body on the base 10 , so that the positioning ring body 31 can move linearly along the rod body of the base 10 .

[0045] The ear plate 25 cooperates with the rod body, that is, the positioning rod 12 to achieve a through-type movable state, thereby ensuring that the positioning ring body 31 can move linearly thereon.

[0046] In addition, in order to facilitate the control of the synchronous movement of the two heating elements 30, a connecting rod 372 can be integrally formed between the two paddles 371, so that the function of synchronous inward storage can be achieved by only pushing the middle connecting rod 372.

[0047] In the above scheme, there is no design for how to restore the flat structure of the adjustment block 32. After the welding is completed, it needs to be manually retracted when welding again next time. This is more inefficient and seriously affects the processing time. To solve this problem, please refer to Figure 1 , Figure 2 and Figure 7 A second rope 34 is provided inside the adjusting block 32 on the same diameter of the plate body on one side close to the heating plate 322, and the end of the second rope 34 is fixed to the adjusting block 32 closest to the end of the inner circle.

[0048] The adjustment block 32 is reset and fixed by additionally installing a rope 2 34, so that the rope 1 33, the power supply line 35 and the rope 2 34 form a stable state on a plane. After being stored and welded, all the adjustment blocks 32 can be straightened by pulling the rope 2 34. Since the inclined platform 321 is not provided on the side with the heating plate 322, the straightened state corresponds to the reset of all the adjustment blocks 32 to the original plane ring state.

[0049] For further information, see Figure 1 , Figure 2 as well as Figure 6The number of the inner groove 36, the inner ring 37, the adjustment groove 361, and the paddle 371 is two groups, which are arranged in parallel, one group of the inner ring 37 is fixed to the rope 1 33, and the other group of the inner ring 37 is fixed to the rope 2 34.

[0050] By setting two sets of inner rings 2 37 to control the adjustment structure of rope 1 33 and rope 2 34 respectively, for the paddle 371, an extrusion piece such as a hand wheel or nut can be additionally installed at its end, so that after the position is adjusted, an extrusion force can be formed by tightening the hand wheel, nut or the like, thereby ensuring that the inner ring 2 37 will not rotate due to the gravity of the adjustment block 32. Since the storage function is to shrink the entire structure without affecting the docking of the pipeline, in this case, a positioning structure such as a buckle or a shaft pin can be set at the end position of the adjustment slot 361. When the paddle 371 moves to the position of the positioning structure, the paddle 371 can be fixed by the positioning structure to avoid the rebound state caused by gravity.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. Anyone familiar with the technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A plastic welding device capable of preventing dislocation, characterized in that: include: Base (10); At least two groups of positioning members (20) disposed on the upper end surface of the base (10) and used to fix the plastic pipe; Two groups of heating elements (30) are arranged on the upper end surface of the base (10) and located between the positioning elements (20), the heating elements (30) comprising a plurality of adjustment blocks (32), the adjustment blocks (32) are combined to form a circular plate body, a rope (33) is inserted between the adjustment blocks (32) on the same diameter of the plate body, the end of the rope (33) is fixed to the adjustment block (32) closest to the end of the inner circle, an inclined platform (321) is provided on one side of two adjacent adjustment blocks (32), the inclined platforms (321) of the two heating elements (30) are arranged opposite to each other, and a heating plate (322) is provided on the side of the adjustment block (32) away from the inclined platform (321); When an external force pulls the rope 1 (33), the inclined platforms (321) between two adjacent adjustment blocks (32) fit together to form a bent and stored state.

2. A dislocation-proof plastic welding device according to claim 1, characterized in that: The base (10) comprises at least two side panels (11) and a plurality of positioning rods (12), both ends of the positioning rods (12) are respectively fixedly connected to at least one side panel (11), the positioning rods (12) are arranged horizontally, and the side panels (11) are arranged vertically.

3. A dislocation-proof plastic welding device according to claim 1, characterized in that: The positioning member (20) comprises two groups of arc-shaped plates (21), the arc-shaped plates (21) are combined to form a circular ring, and connecting parts (23) and fixing parts (24) are provided at both ends of the two arc-shaped plates (21), and hinge parts (231) are provided at the connecting parts (23) of the two arc-shaped plates (21) to connect them, and the fixing parts (24) of the two arc-shaped plates (21) are fitted together, and positioning bolts are provided that penetrate the two fixing parts (24).

4. A dislocation-proof plastic welding device according to claim 3, characterized in that: An outer wall of the arc-shaped plate (21) is integrally formed with an ear plate (25), and the ear plate (25) is used to penetrate and connect with a rod body provided on the base (10) so that the arc-shaped plate (21) can move linearly along the rod body.

5. The anti-dislocation plastic welding device according to claim 3, characterized in that: A plurality of nested inner rings (22) are embedded in the inner side of the arc plate (21) and are arranged at equal intervals. The inner side wall of the inner ring (22) is provided with a groove, and the outer side wall of the inner ring (22) is provided with a protrusion, which is inserted into the inner side of the groove. A bolt is provided through the center of the inner ring (22), and the end of the bolt is fixed to the internal thread of the arc plate (21).

6. The anti-dislocation plastic welding device according to claim 1, characterized in that: The heating element (30) comprises a positioning ring body (31) vertically arranged on the base (10), the positioning ring body (31) has an annular inner groove (36) formed inside, one side of the inner groove (36) has an outer side extending through the positioning ring body (31), an inner ring 2 (37) is arranged inside the inner groove (36), the inner side wall of the inner ring 2 (37) is fixed to one end of the rope 1 (33), the other side of the inner ring 2 (37) is integrally formed with a paddle (371), and the other end of the paddle (371) extends through the adjustment groove (361) to the outside.

7. A dislocation-proof plastic welding device according to claim 6, characterized in that: A plurality of ear plates (25) are integrally formed on the lower side of the outer wall of the positioning ring body (31), and the ear plates (25) are intersected with the rod body on the base (10). The positioning ring body (31) can move linearly along the rod body of the base (10).

8. The anti-dislocation plastic welding device according to claim 6, characterized in that: A connecting rod (372) is integrally formed between the two paddles (371).

9. The anti-dislocation plastic welding device according to claim 6, characterized in that: A second rope (34) is provided inside the adjusting block (32) on the same diameter of the plate body on one side close to the heating plate (322), and the end of the second rope (34) is fixed to the adjusting block (32) closest to the end of the inner circle.

10. The anti-dislocation plastic welding device according to claim 9, characterized in that: The inner groove (36), the second inner ring (37), the adjustment groove (361), and the paddle (371) are provided in two groups and arranged in parallel, wherein the second inner ring (37) in one group is fixed to the first rope (33), and the second inner ring (37) in the other group is fixed to the second rope (34).

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