Hot welding machine for inner container of hydrogen storage pressure tank

By designing a hot welding machine for the inner liner of a hydrogen storage pressure tank, which incorporates components such as hydraulic rods, servo motors, and grinding discs, the problem of uneven plastic inner liner surface after welding was solved, thus improving welding efficiency and aesthetics.

CN223735498UActive Publication Date: 2025-12-30ZHONGWEI HYDROGEN ENERGY TECHNOLOGY (SHAANXI) CO LTD
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Patent Information

Application Number
CN202520206647.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2025-12-30
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

When welding plastic pipes with existing hot welding machines, the soft edges of the plastic pipes are prone to flow, resulting in protruding solidified material at the joints, which affects the aesthetics and increases the complexity of subsequent grinding work.

Method used

A hot welding machine for the inner liner of a hydrogen storage pressure tank was designed. It uses components such as hydraulic rods, servo motors, threaded rods and grinding discs to achieve stable fixation and automatic grinding of the plastic inner liner during the welding process, ensuring a smooth surface after welding.

Benefits of technology

This achieves a smooth and aesthetically pleasing surface on the plastic inner liner after welding, reduces subsequent grinding work, and improves welding efficiency and flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hot welding machines, in particular to a hot welding machine for an inner container of a hydrogen storage pressure tank, which comprises a support cavity, a top plate fixedly connected to one side of the top of the support cavity, positioning pipes fixedly connected to two sides of the top of the support cavity, and a hydraulic rod fixedly connected to the middle of the back of the top plate. The output end of the hydraulic rod is fixedly connected with a fixing box, the output end of the driving motor is fixedly connected with a grinding disc, the output end of the servo motor is fixedly connected with a first threaded rod, and a transverse groove is formed in the supporting cavity. According to the utility model, the polishing disc, the hydraulic rod, the fixed pipe, the movable rod, the extrusion disc, the spring buckle and the positioning ring are matched for use, so that the plastic inner container for manufacturing the hydrogen container is welded together, and meanwhile, residual solidified plastic on the surface of the plastic inner container after welding is polished, so that the flatness of the surface of the plastic inner container is ensured; meanwhile, when the plastic inner container enters the fixing pipe or is taken out subsequently, a certain space can be vacated for the plastic inner container, and workers can take the plastic inner container conveniently.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to hot welding machine technical field, concretely relates to a kind of inner bag for hydrogen storage pressure tank of hot welding machine. BACKGROUND

[0002] Hydrogen is a kind of element formed by hydrogen element, hydrogen is a kind of colorless and odorless gas extremely flammable and difficult to dissolve in water at normal temperature and pressure, the density of hydrogen is 0.089g / L, only 1 / 14 of air, is the smallest gas density known in the world, so hydrogen can be used as the filling gas of airship and hydrogen balloon, hydrogen and the reaction of non-metal with high electronegativity show reducing property, and the reaction of hydrogen and active metal shows oxidizing property, hydrogen generally needs to use pressure tank when storing, but a layer of inner bag needs to be set in the inside of pressure tank when producing, and most of existing inner bag is made of plastic material, and some pressure tank inner bags are spliced by two plastic materials, plastic material needs to use hot welding machine when splicing, hot welding machine is welded by a heating plate controlled by intelligence, when welding, heating plate is placed between two plastic parts, when workpiece is tightly attached to heating plate, plastic part contact surface starts to melt, after cooling for a certain time, it is fixed together, although hot welding machine is used more and more widely, but there is still some deficiency when using existing part of hot welding machine, which needs to be improved.

[0003] In the Chinese patent with publication number CN216423496U, a hot melt welding machine is mentioned, which belongs to the technical field of hot melt welding. It includes two base plates, a heating plate and a milling cutter. Between the two base plates is a cross plate, which is fixed to the two base plates. The top of the cross plate has a strip-shaped opening, and the strip-shaped opening has a threaded rod. The two ends of the threaded rod are connected to the two side walls of the strip-shaped opening through rotating sleeves. Above the cross plate are two sliding tables, one on each side of the base plate. The heating plate and the milling cutter are fixed to the two sliding blocks. The bottom of the side facing each other of the two sliding tables is fixed with a sliding block, and the two sliding blocks are threadedly connected to the threaded rod. One end of the cross plate is fixed with a drive motor, and the drive shaft of the drive motor is fixed to one end of the threaded rod. The top of the two base plates is provided with a clamping assembly. The utility model can automatically adjust the position of the heating plate and the milling cutter, thereby improving the efficiency and effect of hot melting.

[0004] However, the above technical solution has some limitations in use, especially when splicing two plastic pipes together. After the plastic pipes are heated and melted, the edges of the plastic pipes become soft. During the subsequent extrusion process, the melted plastic at the soft position may flow into the interior or exterior of the pipe. After a certain period of time, the excess part at the extrusion position will also solidify after cooling. This may cause some protruding plastic parts on the surface of the connection between the two pipes, affecting the appearance of the pipes. The utility model discloses a content

[0005] The utility model discloses a content of a hydrogen storage pressure tank's inner bag is with hot welding machine, to solve the problem of the background art in the foregoing.

[0006] To realize above -mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of inner bag for hydrogen storage pressure tank's hot welding machine, comprising: support cavity, one side of the top of the support cavity is fixedly connected with top plate, both sides of the top of the support cavity are fixedly connected with positioning pipe, the middle part of the back of the top plate is fixedly connected with hydraulic rod, the output end of the hydraulic rod is fixedly connected with fixed box, the inner side wall of the fixed box is fixedly connected with drive motor, the output end of the drive motor is fixedly connected with polishing disc, the surface of the support cavity is fixedly connected with servo motor, the output end of the servo motor is fixedly connected with first threaded rod, the inside of the support cavity is provided with horizontal groove, and the surface of first threaded rod penetrates the inside of support cavity and horizontal groove.

[0008] Preferably, the inside of the support cavity is penetrated by two moving rods, the top end of the moving rod is fixedly connected with extrusion disc, the surface of the moving rod is fixedly connected with fixed ring, the inside of the fixed ring is provided with spring buckle, both sides of the support cavity are fixedly connected with positioning ring, the inside of the positioning ring is provided with positioning hole, and the surface of spring buckle penetrates the inside of positioning hole.

[0009] Preferably, the surface of the first threaded rod is screwed and penetrated by sliding seat, the back of the sliding seat is fixedly connected with support rod, the end away from the sliding seat of the support rod is fixedly connected with heating plate, the top of the support cavity is provided with two guide grooves, and the sliding seat is slidingly connected in the inside of guide groove.

[0010] Preferably, the inside of the positioning pipe is screwed and connected with second threaded rod, the bottom end of the second threaded rod is fixedly connected with extrusion block, a plurality of rollers are rotatably arranged in the inside of the positioning pipe.

[0011] Preferably, the middle part of the inner bottom wall of the support cavity is fixedly connected with double-shaft servo motor, the output end of the double-shaft servo motor is fixedly connected with third threaded rod, the surface of the third threaded rod is screwed and penetrated by threaded sleeve, the surface of the threaded sleeve is fixedly connected with link rod, the top end of the link rod is fixedly connected with stable block, and the end away from the extrusion disc of the moving rod is rotatably connected with the inside of stable block.

[0012] Preferably, the surface of the top plate is fixedly connected with control panel, and control panel is electrically connected with drive motor, hydraulic rod, servo motor, heating plate and double-shaft servo motor respectively.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) The plastic liner for hydrogen storage pressure tank can be welded, and the stability can be ensured during welding, and the residual solidified plastic on the outer surface of the two plastic liners after welding can be polished, so that the flatness and aesthetics of the surface of the plastic liner after welding are ensured, the welding and polishing and fixing integrated operation is adopted, the subsequent tedious operation of the staff is reduced, and the work progress of the plastic liner welding can be accelerated to a certain extent.

[0015] (2) The plastic liner can be automatically extruded together by the extrusion disc after entering the fixed pipe, and then fixed, and when the fixed pipe needs to be taken out, the moving rod can be rotated to provide a certain space for taking out the plastic liner, and the flexibility is high, and it is worth promoting. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the utility model;

[0017] Figure 2 It is a section view of the support cavity;

[0018] Figure 3 It is a section view of the polishing disc of the utility model;

[0019] Figure 4 It is a section view of the roller of the utility model;

[0020] In the drawing: 1, support cavity; 2, top plate; 3, positioning pipe; 4, hydraulic rod; 5, fixed box; 6, driving motor; 7, polishing disc; 8, servo motor; 9, first threaded rod; 10, sliding seat; 11, guide groove; 12, heating plate; 13, second threaded rod; 14, extrusion block; 15, roller; 16, double-shaft servo motor; 17, third threaded rod; 18, threaded sleeve; 19, stabilizing block; 20, moving rod; 21, extrusion disc; 22, fixed ring; 23, spring buckle; 24, positioning ring; 25, positioning hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Embodiment one:

[0023] Please refer to Figures 1 to 4As shown, a kind of inner container for hydrogen storage pressure tank hot welding machine, including support cavity 1, one side of the top of support cavity 1 is fixedly connected with top plate 2, both sides of the top of support cavity 1 are fixedly connected with positioning pipe 3, the middle part of the back of top plate 2 is fixedly connected with hydraulic rod 4, the output end of hydraulic rod 4 is fixedly connected with fixed box 5, the inner side wall of fixed box 5 is fixedly connected with driving motor 6, the output end of driving motor 6 is fixedly connected with polishing disc 7, the surface of support cavity 1 is fixedly connected with servo motor 8, the output end of servo motor 8 is fixedly connected with first threaded rod 9, the inside of support cavity 1 is provided with horizontal groove, and the surface of first threaded rod 9 is penetrated in the inside of support cavity 1 and horizontal groove. By the setting of positioning pipe 3, the two plastic inner containers needed to be welded can be placed, by the setting of hydraulic rod 4, fixed box 5 can be moved a certain distance back and forth, by the setting of fixed box 5, driving motor 6 can be installed and fixed, by the setting of driving motor 6, it provides a certain driving force for the rotation of polishing disc 7, by the setting of polishing disc 7, the residual plastic on the surface of the plastic inner container connected to a piece can be polished, by the setting of servo motor 8, it provides a certain driving force for the rotation of first threaded rod 9.

[0024] The surface of first threaded rod 9 is screwed and penetrated with sliding seat 10, the back of sliding seat 10 is fixedly connected with support rod, the end, away from sliding seat 10, of support rod is fixedly connected with heating plate 12, the top of support cavity 1 is provided with two guide grooves 11, and sliding seat 10 is slidingly connected in the inside of guide groove 11. By the setting of sliding seat 10, support rod can be installed and fixed, by the setting of heating plate 12, the position contacted by the two plastic inner containers can be pre-melted, by the setting of guide groove 11, sliding seat 10 is more stable when moving.

[0025] The inside of positioning pipe 3 is screw-connected with second threaded rod 13, the bottom end of second threaded rod 13 is fixedly connected with extrusion block 14, a plurality of rollers 15 are rotationally arranged in the inside of positioning pipe 3. By the setting of second threaded rod 13, extrusion block 14 can be fixed, and can move up and down at the same time, by the setting of extrusion block 14, the plastic inner container placed in the inside of positioning pipe 3 can be fixed, by the setting of roller 15, the subsequent plastic inner container can rotate the plastic inner container when polishing, so that the polishing position can be adjusted, and the staff is more labor-saving.

[0026] The middle part of the inner bottom wall of support cavity 1 is fixedly connected with double-shaft servo motor 16, the output end of double-shaft servo motor 16 is fixedly connected with third threaded rod 17, and the surface of third threaded rod 17 is screw-penetrated with threaded sleeve 18. By the setting of double-shaft servo motor 16, it provides a certain driving force for the rotation of third threaded rod 17, by the setting of threaded sleeve 18, the connecting rod can be fixed.

[0027] The surface of the top plate 2 is fixedly connected with a control panel, and the control panel is electrically connected with the driving motor 6, the hydraulic rod 4, the servo motor 8, the heating plate 12 and the double-shaft servo motor 16 respectively.

[0028] Embodiment two:

[0029] Please refer to Figure 1 As shown in the figure, the surface of the threaded sleeve 18 is fixedly connected with a connecting rod, the top end of the connecting rod is fixedly connected with a stable block 19, and the end of the moving rod 20 away from the extrusion disc 21 is rotatably connected with the inside of the stable block 19. Through the setting of the connecting rod, the stable block 19 can be fixed and moved together with the threaded sleeve 18.

[0030] Two moving rods 20 are through the inside of the support cavity 1, the top end of the moving rod 20 is fixedly connected with an extrusion disc 21, the surface of the moving rod 20 is fixedly connected with a fixed ring 22, the inside of the fixed ring 22 is provided with a spring buckle 23, both sides of the support cavity 1 are fixedly connected with a positioning ring 24, the inside of the positioning ring 24 is provided with a positioning hole 25, and the surface of the spring buckle 23 is through the inside of the positioning hole 25. Through the setting of the moving rod 20 and the extrusion disc 21, the plastic liner can be pre-pressed to the position needed to be connected after being positioned in the positioning tube 3, and at the same time, it can be kept stable. Through the setting of the spring buckle 23, the moving rod 20 can be fixed after being inserted into the positioning hole 25 in the inside of the positioning ring 24, so as to avoid its rotation. However, when the plastic liner is put into the positioning tube 3, the moving rod 20 can be rotated, and at the same time, the staff can manually extrude the spring buckle 23 into the inside of the positioning hole 25, and then rotate the moving rod 20, so that the spring buckle 23 is separated from the positioning ring 24, that is, the moving rod 20 can be rotated, so as to ensure that the plastic liner can be put into the positioning tube 3.

[0031] The utility model discloses a working principle: the staff beforehand needs to connect two plastic inner bag and put into the inside of positioning pipe 3, in this process, the staff can be through the spring buckle 23 in the inside of positioning ring 24 positioning hole 25 extrude downwards, until the spring buckle 23 is separated from the inside of positioning hole 25 after, at this time, the staff rotates the moving rod 20, so that extrusion disc 21 follows the moving rod 20 rotates a certain angle, and the plastic inner bag enters the inside of positioning pipe 3, and the plastic inner bag enters the inside of positioning pipe 3 after, at this time, the staff resets the moving rod 20 and extrusion disc 21, and then the staff controls the double -shaft servo motor 16 and servo motor 8 start, and the output of double -shaft servo motor 16 drives two third screw rod 17 to rotate, so that its surface thread sleeve 18 moves to the position of facing each other, and then make thread sleeve 18 drive the interface rod and the stable block 19 move to the position of facing each other, and then make the moving rod 20 move to the position of facing each other, and then make it drive extrusion disc 21 and extrude the plastic inner bag to the position of facing each other, and the output of servo motor 8 drives first screw rod 9 to rotate, so that sliding seat 10 moves to the direction of top plate 2, and sliding seat 10 slides forward in the guide slot 11, and to its movement under top plate 2, and with two plastic inner bag is in the same horizontal position, at this time, the plastic inner bag continues to be pushed forward by extrusion disc 21, until with heating plate 12 contact, make it melt, and the staff controls servo motor 8 reverse, so that sliding seat 10 drives heating plate 12 reset, at this time, the staff controls double -shaft servo motor 16 start again, so that extrusion disc 21 extrudes two plastic inner bags again, until it melts and contacts, after cooling for a certain period of time, the melted position solidifies, and then the staff controls hydraulic rod 4 to start, and hydraulic rod 4 drives fixed box 5 to move forward, until it contacts with the position of two plastic inner bags, at this time, the staff controls drive motor 6 to start, and the output of drive motor 6 drives polishing disc 7 to rotate, and then make polishing disc 7 polish the residual solidified plastic at the edge of the outer surface of two plastic inner bags, so that the outer surface of two plastic inner bags is relatively flat, in this process, the staff can loosen the second screw rod 13, and the extrusion block 14 is driven by the second screw rod 13 and moves upwards, and then rotates two plastic inner bags connected as a whole, so that they rotate together through the roller 15, so that the staff is more labor-saving, until the connecting portion is polished.

[0032] Although the embodiments of the utility model have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hot welding machine for a liner of a hydrogen storage pressure tank, characterized by comprising: Include: Supporting cavity (1), one side of the top of the supporting cavity (1) is fixedly connected with top plate (2), both sides of the top of the supporting cavity (1) are fixedly connected with positioning pipe (3), the back of the top plate (2) is fixedly connected with hydraulic rod (4), the output end of the hydraulic rod (4) is fixedly connected with fixed box (5), the inner side wall of the fixed box (5) is fixedly connected with drive motor (6), the output end of the drive motor (6) is fixedly connected with polishing disc (7), the surface of the supporting cavity (1) is fixedly connected with servo motor (8), the output end of the servo motor (8) is fixedly connected with first threaded rod (9), the inside of the supporting cavity (1) is provided with horizontal groove, and the surface of the first threaded rod (9) penetrates the inside of the supporting cavity (1) and the horizontal groove.

2. The hot welding machine for the inner container of the hydrogen storage pressure tank according to claim 1, characterized by: The inside of the supporting cavity (1) penetrates two moving rods (20), the top end of the moving rod (20) is fixedly connected with extrusion disc (21), the surface of the moving rod (20) is fixedly connected with fixed ring (22), the inside of the fixed ring (22) is provided with spring buckle (23), both sides of the supporting cavity (1) are fixedly connected with positioning ring (24), the inside of the positioning ring (24) is provided with positioning hole (25), and the surface of the spring buckle (23) penetrates the inside of the positioning hole (25).

3. The hot welding machine for the inner liner of a hydrogen storage pressure tank according to claim 1, characterized by: The surface of the first threaded rod (9) is screwed and penetrated by sliding seat (10), the back of the sliding seat (10) is fixedly connected with support rod, one end of the support rod away from the sliding seat (10) is fixedly connected with heating plate (12), the top of the supporting cavity (1) is provided with two guide grooves (11), and the sliding seat (10) is slidingly connected in the inside of the guide groove (11).

4. The hot welding machine for the inner liner of a hydrogen storage pressure tank according to claim 1, characterized by: The inside of the positioning pipe (3) is screwedly connected with second threaded rod (13), the bottom end of the second threaded rod (13) is fixedly connected with extrusion block (14), a plurality of rollers (15) are rotationally arranged in the inside of the positioning pipe (3).

5. The hot welding machine for the inner liner of a hydrogen storage pressure tank according to claim 1, characterized by: The middle of the inner bottom wall of the supporting cavity (1) is fixedly connected with double-shaft servo motor (16), the output end of the double-shaft servo motor (16) is fixedly connected with third threaded rod (17), the surface of the third threaded rod (17) is screwedly penetrated by threaded sleeve (18), the surface of the threaded sleeve (18) is fixedly connected with link rod, the top end of the link rod is fixedly connected with stable block (19), and one end of the moving rod (20) away from the extrusion disc (21) is rotationally connected with the inside of the stable block (19).

6. The hot welding machine for the inner liner of a hydrogen storage pressure tank according to claim 1, characterized by: The surface of the top plate (2) is fixedly connected with control panel, and the control panel is electrically connected with the drive motor (6), the hydraulic rod (4), the servo motor (8), the heating plate (12) and the double-shaft servo motor (16) respectively.

Citation Information

Patent Citations

  • Hot melting welding machine

    CN216423496U