Plastic pipe sealing and cooling device

Abstract

This invention discloses a plastic pipe sealing and cooling device, relating to the field of plastic pipe processing technology. It includes two opposing and separable or combustible cooling blocks. Each cooling block has a cooling channel inside, and high-frequency conductive sheets are electrically connected to the outside of each block. The opposing surfaces of the two cooling blocks each have a plastic heat-sealing welding surface for low-temperature sealing of the plastic pipe. This invention provides sealing and rapid cooling for the plastic pipe, preventing sealing failure caused by the gas inside the pipe breaking open the seal due to excessively soft seal at high temperatures.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe processing technology, and in particular to a plastic pipe melting and cooling device. Background Technology

[0002] Before coiling, plastic tubing needs to be inflated and sealed at both ends. The existing sealing method involves heating the ends of the plastic tubing, which melts the sealing area at high temperature. Then, the melted sealing area is pressed together to seal it. However, after sealing, the plastic tubing at the sealing area is too soft due to the high temperature, which causes the gas inside the tubing to burst open the seal, resulting in sealing failure.

[0003] Therefore, a plastic tube sealing and cooling device is needed to solve the above problems. Utility Model Content

[0004] This invention proposes a plastic tube sealing and cooling device, which seals and rapidly cools the plastic tube, preventing sealing failure caused by the gas inside the tube breaking open the seal due to the high temperature making the tube too soft.

[0005] The technical solution of this utility model is implemented as follows: A plastic tube sealing and cooling device includes two opposing and separable or combustible cooling blocks. Each cooling block has a cooling channel inside, and each cooling block is electrically connected to a high-frequency conductive sheet on its exterior. The opposing surfaces of the two cooling blocks are respectively provided with a plastic heat-sealing welding surface for low-temperature sealing of the plastic tube.

[0006] As a preferred technical solution, a pair of sealing gap adjustment blocks are provided on the inner surface of one of the cooling blocks.

[0007] As a preferred technical solution, the inner surface of another cooling block is provided with a pair of limiting grooves, and the sealing gap adjusting block is adapted to the limiting grooves in pairs.

[0008] As a preferred technical solution, both of the plastic heat-sealing welding surfaces are provided with multiple pressing ribs.

[0009] As a preferred technical solution, both high-frequency conductive sheets are electrically connected to a high-frequency generator.

[0010] As a preferred technical solution, both cooling channels are connected to an industrial chiller.

[0011] By adopting the above technical solution, the beneficial effects of this utility model are as follows: Because the plastic tube sealing and cooling device includes two cooling blocks, during use, the end of the plastic tube is placed between the two cooling blocks. The two cooling blocks are combined, and through the high-frequency conductive sheet, a high-frequency electromagnetic field is created on the two cooling blocks. The high-frequency electromagnetic field causes the molecules inside the plastic tube to collide violently with each other, generating high temperatures and melting the plastic tube. Under the pressure of the two cooling blocks, the end of the plastic tube is sealed. At the same time, the two cooling blocks rapidly cool the sealing area, preventing the sealing from failing because the plastic tube is too soft at high temperatures, allowing the gas inside the tube to force open the seal.

[0012] Because the cooling block is equipped with a sealing gap adjustment block, which is detachably installed on the cooling block, the sealing gap between the two cooling blocks can be adjusted by replacing the sealing gap adjustment blocks of different thicknesses. This allows the equipment to weld and seal plastic tubes of different thicknesses. At the same time, the setting of the two sealing gap adjustment blocks creates a stable sealing gap between the two cooling blocks, thus ensuring that the overall thickness of the plastic tube at the seal is consistent. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of one of the cooling blocks; Figure 3 This is a schematic diagram of the structure of another cooling block; Figure 4 This is a schematic diagram of the cooling channel structure; Figure 5 This is a reference diagram showing the state of the two cooling blocks during sealing. Figure 6 for Figure 5 Schematic sectional view along the middle AA direction; Figure 7 This is a schematic diagram of two cooling blocks mounted on a frame.

[0015] The components include: 1. Refrigeration block; 2. Cooling channel; 3. High-frequency conductive sheet; 4. Plastic pipe; 5. Plastic heat-sealing welding surface; 6. Sealing gap adjustment block; 7. Limiting groove; 8. Pressing rib; 9. Water pipe; 10. Insulating block; 11. Frame; 12. Lifting frame; 13. Drive cylinder. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-7 As shown, the plastic tube sealing and cooling device includes two opposing and separable or combinable cooling blocks 1. Each cooling block 1 has a cooling channel 2 inside. The exterior of each cooling block 1 is electrically connected to a high-frequency conductive sheet 3. The opposing surfaces of the two cooling blocks 1 are respectively provided with a plastic heat-sealing welding surface 5 for low-temperature sealing of the plastic tube 4. Both cooling blocks 1 are made of copper or aluminum that can conduct high-frequency electromagnetic waves.

[0018] When using, such as Figure 7 As shown, one cooling block 1 is fixedly installed on the frame 11 by an insulating block 10. A lifting frame 12 is slidably installed on the frame 11. Another cooling block 1 is fixedly installed on the lifting frame 12. A drive cylinder 13 is fixedly installed on the frame 11. The piston rod of the drive cylinder 13 is fixedly connected to the lifting frame 12. Through the drive cylinder 13, one cooling block 1 is driven to move closer to or away from the other cooling block 1, thereby realizing the separation or combination of the two cooling blocks 1.

[0019] like Figure 1 and Figure 2 As shown in the figure, a pair of sealing gap adjustment blocks 6 are provided on the inner surface of one of the cooling blocks 1.

[0020] Another cooling block 1 has a pair of limiting grooves 7 on its inner surface, and the sealing gap adjusting block 6 and the limiting grooves 7 are matched in pairs.

[0021] Multiple pressing ribs 8 are provided on both plastic heat-sealing surfaces 5. When the plastic tube 4 is sealed, the pressing ribs 8 press out multiple sealing openings on the plastic tube 4, so that the end of the plastic tube 4 is sealed in multiple ways. Even if one of the sealing openings fails, the other sealing openings still have a sealing effect on the end of the plastic tube 4, which improves the sealing effect at the end of the plastic tube 4 and further avoids the occurrence of air leakage.

[0022] Two high-frequency conductive plates 3 are each electrically connected to a high-frequency generator. The high-frequency generator generates high-frequency electromagnetic waves, which are conducted to the two cooling blocks 1 through the high-frequency conductive plates 3, so that a high-frequency electromagnetic field exists on the two cooling blocks 1. The high-frequency electromagnetic field can cause the molecules inside the plastic tube 4 to collide violently with each other, generating high temperature and melting the plastic tube 4. The high-frequency generator is commercially available, so it is not shown in the figure. The structure of the high-frequency generator will not be described in detail.

[0023] The two cooling channels 2 are connected to an industrial chiller. The two ends of the cooling channel 2 are connected to the inlet and outlet of the industrial chiller through a water pipe 9, respectively. The industrial chiller is a CW3000 model water-cooled chiller, which is not shown in the figure.

[0024] In summary, this invention achieves both melting and rapid cooling of the plastic tube, preventing sealing failure caused by the gas inside the tube breaking open the seal due to the tube becoming too soft at high temperatures.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic tube sealing and cooling device, characterized in that, It includes two opposing cooling blocks that can be separated or combined. Each cooling block has a cooling channel inside. Each cooling block is electrically connected to a high-frequency conductive sheet on its exterior. Each of the opposing surfaces of the two cooling blocks has a plastic heat-sealing welding surface for low-temperature sealing of a plastic tube.

2. The plastic tube sealing and cooling device according to claim 1, characterized in that, One of the cooling blocks has a pair of sealing gap adjustment blocks on its inner surface.

3. The plastic tube sealing and cooling device according to claim 2, characterized in that, Another cooling block has a pair of limiting grooves on its inner surface, and the sealing gap adjusting block is matched with the limiting grooves in pairs.

4. The plastic tube sealing and cooling device according to claim 1, characterized in that, Both of the aforementioned plastic heat-sealing welding surfaces are provided with multiple pressing ribs.

5. The plastic tube sealing and cooling device according to claim 1, characterized in that, Both of the high-frequency conductive sheets are electrically connected to a high-frequency generator.

6. The plastic tube sealing and cooling device according to any one of claims 1-5, characterized in that, Both cooling channels are connected to an industrial chiller.

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