Welding equipment for plastic inner container of composite gas cylinder

Abstract

The utility model discloses welding equipment for a plastic inner container of a composite gas cylinder, which comprises a box body, a fixing structure is arranged on the lower side in the box body, a heating structure is arranged in the box body, a lifting structure is arranged on the upper side in the box body, the fixing structure comprises a disc, and the disc is arranged on the heating structure. The disc is fixedly connected to the lower side of the interior of the box body, a circular groove is formed in the upper side of the disc, and a square block and a first clamping block are fixedly connected to the upper side of the disc. Through the arrangement of the fixing structure, the heating structure and the lifting structure, a stable state is kept when a worker welds the plastic inner container, the situation that a valve body and an inner container bottle opening are welded mistakenly is avoided, time and labor are saved, and the workload of the worker is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic liner welding, in particular to welding equipment for the plastic liner of a composite gas cylinder. Background Art

[0002] As one of the core components of composite gas cylinders, the plastic liner plays multiple important roles, primarily protecting the metal liner, enhancing cylinder strength, and providing an additional layer of safety. Composite gas cylinders play a vital role in modern industry and daily life, particularly in the storage and transportation of high-pressure gases. The design and application of plastic liners is a key aspect of composite gas cylinder technology advancement, overcoming the limitations of traditional all-metal cylinders in terms of weight, corrosion resistance, and gas permeability.

[0003] During the heating process of the plastic liner, the liner needs to be placed in an arc-shaped inner seat. During welding, the lifting mechanism will exert force and the liner bottle body will shake. Welding errors are not conducive to the welding work of the liner and require re-welding, which is time-consuming and labor-intensive, and increases the workload of the staff. Utility Model Content

[0004] In order to overcome the deficiency of the prior art that the plastic liner is unstable during welding, one of the purposes of the present utility model is to provide a welding device for the plastic liner of a composite gas cylinder.

[0005] One of the purposes of the utility model is achieved by the following technical solution: A welding device for a plastic liner of a composite gas cylinder, comprising a box body: a fixing structure is provided on the lower side of the inner part of the box body, a heating structure is provided inside the box body, and a lifting structure is provided on the upper side of the inner part of the box body;

[0006] The fixing structure includes a circular disc fixedly attached to the lower side of the box. A circular groove is formed on the upper side of the disc, to which a square block and a first clamping block are fixedly attached. A threaded rod is internally threadedly connected to the square block. A handle is fixedly connected to the left end of the threaded rod, and a second clamping block is rotatably connected to the right end of the threaded rod. The cylindrical handle facilitates the worker's securing of the plastic liner for welding.

[0007] According to the welding equipment for composite gas cylinder plastic liners, the lifting structure includes an electric push rod 1, which is fixedly connected to the upper side of the inner casing. The output end of the electric push rod 1 is fixedly connected to a circular block, and the lower side of the circular block is fixedly connected to a cylindrical block. This facilitates the movement of the valve body for welding to the inner liner.

[0008] According to the welding equipment for composite gas cylinder plastic liners, the heating structure includes two electric push rods fixedly connected to the left and right sides of the box body, and the output end of the left electric push rod is fixedly connected to the first electric heater, which is conducive to heating the bottle mouth of the inner liner.

[0009] According to the welding device for the plastic liner of a composite gas cylinder, the output end of the second electric push rod on the right side is fixedly connected to the second electric heater, which is beneficial for heating the valve body.

[0010] According to the welding equipment for the plastic liner of a composite gas cylinder, rubber pads are provided on the outer sides of the clamping block 1 and the clamping block 2 to protect the inner liner from being damaged by friction of the clamping blocks.

[0011] According to the welding equipment for the plastic liner of a composite gas cylinder, rubber pads are provided on the outside of the cylindrical block and the circular block to prevent the valve body from being worn.

[0012] According to the welding equipment for the plastic liner of a composite gas cylinder, an ultrasonic positioning device and a visual ultrasonic phased array detection structure are provided inside the box body to detect whether the welding position of the plastic liner is correct and the welding quality.

[0013] The above scheme has the beneficial effect: through the setting of fixed structure, heating structure and lifting structure, the workers can maintain a stable state when welding the plastic liner, avoiding welding errors between the valve body and the liner bottle mouth, saving time and effort, and reducing the workload of the workers.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall main structure of a welding device for the plastic liner of a composite gas cylinder according to the present invention;

[0017] Figure 2 The utility model is a schematic cross-sectional structural diagram of a welding device for a plastic liner of a composite gas cylinder.

[0018] Legend:

[0019] 1. Box body; 2. Fixed structure; 201. Disc; 202. Circular groove; 203. Clamping block 1; 204. Square block; 205. Threaded rod; 206. Handle; 207. Clamping block 2; 3. Lifting structure; 301. Electric push rod 1; 302. Circular block; 303. Cylindrical block; 4. Heating structure; 401. Electric push rod 2; 402. Electric heater 1; 403. Electric heater 2. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] Reference Figure 1-2 A welding device for the plastic liner of a composite gas cylinder includes a box body 1: a fixing structure 2 is provided on the lower side of the box body 1, a heating structure 4 is provided inside the box body 1, a lifting structure 3 is provided on the upper side of the box body 1, an ultrasonic positioning device and a visual ultrasonic phased array detection structure are provided inside the box body 1, the fixing structure 2 includes a disc 201, the disc 201 is fixedly connected to the lower side of the box body 1, a circular groove 202 is provided on the upper side of the disc 201, and the upper side of the disc 201 is provided with a circular groove 202. The side is fixedly connected with a square block 204 and a clamping block 1 203, the inner thread of the square block 204 is connected with a threaded rod 205, the left end of the threaded rod 205 is fixedly connected with a handle 206, and the right end of the threaded rod 205 is rotatably connected with a clamping block 207, the handle 206 is set to be cylindrical, and rubber pads are set on the outside of the clamping block 1 203 and the clamping block 207. The heating structure 4 includes an electric push rod 2 401, which is fixedly connected to the left and right sides of the inside of the box body 1. The output end of the side electric push rod 2 401 is fixedly connected to the electric heater 1 402, and the output end of the right electric push rod 2 401 is fixedly connected to the electric heater 2 403. The PLC controller and the electric push rod 1 301, the electric push rod 2 401, the electric heater 1 402, the electric heater 2 403, the ultrasonic positioning device, and the visual ultrasonic phased array detection structure are electrically connected to facilitate the operation of the control components. First, the staff places the inner liner in the circular groove 202 of the disc 201, and then the staff holds the handle 206 and turns the threaded rod 205 to push the clamp 207 to fix the bottle body of the inner liner. The height of the clamp 1 203 and the clamp 207 is set to more than half of the bottle body, which can make the inner liner more stable. There is no need to worry about welding errors due to unstable bottle body. Then, the electric push rod 2 401 on the left side of the device is started to drive the electric heater 1 402 to move to the right, and then the electric heater 1 402 is started to heat the bottle mouth, so that the bottle mouth is convenient for subsequent welding work.

[0022] The lifting structure 3 includes an electric push rod 1 301, which is fixedly connected to the upper side of the box body 1. The output end of the electric push rod 1 301 is fixedly connected to a circular block 302, and the lower side of the circular block 302 is fixedly connected to a cylindrical block 303. Rubber pads are provided on the outer sides of the cylindrical block 303 and the circular block 302. After the bottle mouth is heated, the staff first puts the valve body tightly on the cylindrical block 303, and then starts the electric push rod 1 301 and the electric push rod 2 401 to move the valve body toward the direction of the heater 2. At this time, the valve body is started. Move the electric heater 2 403 to heat the valve body, then stop heating, and move the electric push rod 1 301 again to weld the valve body toward the bottle mouth. During this process, the ultrasonic positioning device and the visual ultrasonic phased array detection structure can detect whether the welding position is correct and whether the welding quality is good. When the welding is completed, the inner liner is fixed with the fixed structure 2, and the electric push rod 1 301 is directly moved to pull out the cylindrical block 303, and then the electric heater 2 403 is reset. After that, the welded inner liner is taken out and the welding work of the next inner liner is carried out.

[0023] Working principle: First, the staff places the lower part of the plastic liner on the fixed structure 2, then uses the heating structure 4 to heat the inner liner bottle mouth, and then uses the lifting structure 3 to fix the valve body part, and then moves the valve body. At this time, it slowly moves to the heating structure 4 to heat the valve body, and then directly moves the valve body to the inner liner bottle mouth. During welding, there is an ultrasonic positioning device and a visual ultrasonic phased array detection structure to detect the correctness of the welding position and whether the welding quality is good.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A welding device for composite gas cylinder plastic liner, characterized in that: It comprises a box (1): a fixing structure (2) is provided on the lower side of the box (1), a heating structure (4) is provided on the inside of the box (1), and a lifting structure (3) is provided on the upper side of the box (1); The fixing structure (2) comprises a disc (201), the disc (201) being fixedly connected to the lower side of the interior of the box (1), the upper side of the disc (201) being provided with a circular groove (202), the upper side of the disc (201) being fixedly connected to a square block (204) and a clamping block 1 (203), the inner thread of the square block (204) being connected to a threaded rod (205), the left end of the threaded rod (205) being fixedly connected to a handle (206), the right end of the threaded rod (205) being rotatably connected to a clamping block 2 (207), and the handle (206) being arranged in a cylindrical shape.

2. The welding equipment for composite gas cylinder plastic liner according to claim 1, characterized in that: The lifting structure (3) includes an electric push rod (301), which is fixedly connected to the upper side of the box (1). The output end of the electric push rod (301) is fixedly connected to a circular block (302), and the lower side of the circular block (302) is fixedly connected to a cylindrical block (303).

3. The welding equipment for composite gas cylinder plastic liner according to claim 1, characterized in that: The heating structure (4) includes an electric push rod 2 (401), which is fixedly connected to the left and right sides of the box (1), and the output end of the left electric push rod 2 (401) is fixedly connected to an electric heater 1 (402).

4. The welding equipment for composite gas cylinder plastic liner according to claim 3, characterized in that: The output end of the second electric push rod (401) on the right side is fixedly connected to the second electric heater (403).

5. The welding equipment for composite gas cylinder plastic liner according to claim 1, characterized in that: Rubber pads are provided on the outer sides of the clamping block 1 (203) and the clamping block 2 (207).

6. The welding equipment for composite gas cylinder plastic liner according to claim 2, characterized in that: Rubber pads are provided on the outer sides of the cylindrical block (303) and the circular block (302).

7. The welding equipment for composite gas cylinder plastic liner according to claim 1, characterized in that: An ultrasonic positioning device and a visual ultrasonic phased array detection structure are provided inside the box (1).

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