Cooling device for hot melt welding of a car weather strip

Abstract

This utility model relates to the technical field of sealing strip welding machines, and discloses a cooling device for hot-melt welding of automotive sealing strips, including a base and a top box. The inner cavity of the top box is equipped with a cooling assembly, which includes two liquid nitrogen storage tanks respectively installed on both sides of the inner cavity of the top box. A blower box is fixedly connected to the bottom of the top box, and blower assemblies are connected to both sides of the blower box. An air outlet pipe is connected to the bottom of the inner cavity of the blower box. Support rods are fixedly connected to the top of the base around its perimeter, and the tops of the support rods are fixedly connected to the top box. This utility model, by setting up a cooling assembly, can transport liquid nitrogen from the liquid nitrogen storage tanks to the air outlet using an air outlet pipe, connector, and three-way valve, and spray it out inside the blower box. The blower assemblies allow external air to be introduced into the blower box, thereby cooling the welded joint of the sealing strip through the air outlet pipe, achieving a rapid cooling effect.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing strip welding machines, specifically a cooling device for hot-melt welding of automotive sealing strips. Background Technology

[0002] Sealing strip welding machines are a common type of equipment for sealing strips. Common sealing strip welding machines generally use a combination of hydraulic power and electric heating systems to heat and vulcanize rubber at the corner mold to achieve welding between sealing strips. The problem with existing technology is that after the sealing strip welding is completed, the melt cooling device of the existing sealing strip welding machine often allows the sealing strip to cool naturally. However, the natural cooling rate is slow, which affects the production rate. In addition, the longer the cooling time, the higher the risk of damage to the weld joint of the sealing strip. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of this utility model is to provide a cooling device for hot-melt welding of automotive sealing strips, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for hot-melt welding of automotive sealing strips, comprising a base and a top box, wherein a cooling component is provided in the inner cavity of the top box, a blower is fixedly connected to the bottom of the top box, blower components are connected to both sides of the blower, an air outlet pipe is connected to the bottom of the inner cavity of the blower, and support rods are fixedly connected to the top of the base around its perimeter, the top of the support rods being fixedly connected to the top box.

[0005] By adopting the above technical solution and setting up a refrigeration component, the liquid nitrogen cold gas in the liquid nitrogen storage tank can be transported to the outlet through the outlet pipe, connector and three-way valve, and sprayed out inside the air box. By setting up the blower component, external air can be introduced into the air box, so that the sprayed liquid nitrogen cold gas can be sprayed out through the outlet pipe, thereby cooling the welded joint of the sealing strip, so that the welded joint can achieve a rapid cooling effect.

[0006] Preferably, the refrigeration assembly includes two liquid nitrogen storage tanks respectively installed on both sides of the inner cavity of the top box. One end of each liquid nitrogen storage tank is connected to an outlet pipe, and the other end of the outlet pipe is connected to a connector. The other end of the connector is connected to a three-way valve through a pipe. The bottom of the three-way valve is connected to an outlet head, and the bottom of the outlet head penetrates the top box and the air box and extends into the inner cavity of the air box.

[0007] By adopting the above technical solution, the liquid nitrogen cold gas in the liquid nitrogen storage tank can be transported to the outlet through the outlet pipe, connector and three-way valve, and sprayed out inside the air box.

[0008] Preferably, the blower assembly includes two air ducts connecting the two sides of the inner cavity of the air box, each air duct is equipped with a blower, and each air duct is provided with a dustproof net on the opposite side.

[0009] By adopting the above technical solution, external air can be introduced into the air box, thereby spraying out liquid nitrogen cold air through the air outlet pipe to cool the welded joint of the sealing strip, achieving a rapid cooling effect at the welded joint.

[0010] Preferably, guide slopes are provided on both sides of the bottom of the air box cavity.

[0011] By adopting the above technical solution, the cold air inside the bellows can move quickly to the outlet pipe, thereby improving the cold air output effect.

[0012] Preferably, a connecting rod is fixedly connected to the top of the three-way valve, and the top of the connecting rod passes through the top box and is fixedly connected to a rotating handle.

[0013] By adopting the above technical solution, users can easily open and close the three-way valve, improving its ease of use.

[0014] Preferably, the base is fixedly connected to casters on all four sides of its bottom.

[0015] By adopting the above technical solution, users can easily move the cooling device to different locations to cool the welded joints of the sealing strip.

[0016] Preferably, the surface of the top box is provided with a box door.

[0017] By adopting the above technical solution, users can easily disassemble and replace liquid nitrogen storage tanks.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention, by setting up a refrigeration component, can transport liquid nitrogen from the liquid nitrogen storage tank to the outlet using an outlet pipe, connector, and three-way valve, and then spray it out inside the air box. By setting up a blower component, external air can be introduced into the air box, thereby allowing the sprayed liquid nitrogen to be sprayed out through the outlet pipe, thus cooling the welded joint of the sealing strip and achieving a rapid cooling effect at the welded joint. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0022] Figure 3 The structure of this utility model Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 The structure of this utility model Figure 2 A magnified view of a section at point B in the middle;

[0024] Figure 5 This is a perspective view of the bellows in the structure of this utility model.

[0025] In the diagram: 1. Base; 2. Top box; 3. Refrigeration component; 301. Liquid nitrogen storage tank; 302. Gas outlet pipe; 303. Connector; 304. Three-way valve; 305. Gas outlet head; 4. Air box; 5. Blower assembly; 501. Air duct; 502. Blower; 503. Dustproof net; 6. Air outlet pipe; 7. Guide slope; 8. Connecting rod; 9. Rotary handle; 10. Support rod; 11. Box door; 12. Casters. Detailed Implementation

[0026] 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.

[0027] Example 1:

[0028] Reference Figure 1-5A cooling device for hot-melt welding of automotive sealing strips includes a base 1 and a top box 2. A cooling assembly 3 is installed inside the top box 2. The cooling assembly 3 includes two liquid nitrogen storage tanks 301 respectively installed on both sides of the top box 2's inner cavity. Each liquid nitrogen storage tank 301 has an outlet pipe 302 connected to one end facing the other. The other end of the outlet pipe 302 is connected to a connector 303. The other end of the connector 303 is connected to a three-way valve 304 via a pipe. An outlet head 305 is connected to the bottom of the three-way valve 304. The bottom of the outlet head 305 penetrates the top box 2 and a blower box 4 and extends into the inner cavity of the blower box 4. The bottom of the top box 2 is fixedly connected to the blower box 4. Blower assemblies 5 are connected to both sides of the blower box 4. Each blower assembly 5 includes two air ducts 50 connecting to both sides of the inner cavity of the blower box 4. 1. Blowers 502 are installed in the inner cavities of both air ducts 501. Dustproof nets 503 are installed on the opposite sides of the two air ducts 501. An air outlet pipe 6 is connected to the bottom of the inner cavity of the air box 4. Support rods 10 are fixedly connected to the top of the base 1 around the perimeter. The top of the support rods 10 is fixedly connected to the top box 2. By setting the refrigeration component 3, the liquid nitrogen cold gas in the liquid nitrogen storage tank 301 can be transported to the air outlet 305 through the air outlet pipe 302, connector 303 and three-way valve 304 and sprayed out inside the air box 4. By setting the blower component 5, external air can be introduced into the air box 4, so that the sprayed liquid nitrogen cold gas can be sprayed out through the air outlet pipe 6, thereby cooling the welded joint of the sealing strip and achieving a rapid cooling effect at the welded joint.

[0029] Example 2:

[0030] Reference Figure 1 , Figure 3 and Figure 4 Both sides of the bottom of the inner cavity of the air box 4 are provided with guide slopes 7, which can facilitate the rapid movement of cold air in the air box 4 to the outlet pipe 302, thereby improving the cold air output effect. The top of the three-way valve 304 is fixedly connected to a connecting rod 8, the top of the connecting rod 8 passes through the top box 2 and is fixedly connected to a handle 9, which can facilitate the user to open and close the three-way valve 304, thereby improving the convenience of use. The bottom of the base 1 is fixedly connected to the four sides of the base, which can facilitate the user to move the cooling device to different places and cool the welded joint of the sealing strip. The surface of the top box 2 is provided with a box door 11, which can facilitate the user to disassemble and replace the liquid nitrogen storage tank 301.

[0031] The working principle is as follows:

[0032] In use, rotating the handle 9 drives the connecting rod 8 to rotate, which opens the three-way valve 304. This allows the liquid nitrogen cold gas in the liquid nitrogen storage tank 301 to be transported to the outlet 305 through the outlet pipe 302, connector 303, and three-way valve 304, and then sprayed out inside the air box 4. Then, starting the two blowers 502 introduces external air into the air box 4, which in turn sprays out the liquid nitrogen cold gas through the outlet pipe 6, thereby cooling the welded joint of the sealing strip and achieving a rapid cooling effect.

[0033] After the liquid nitrogen storage tank 301 is used up, the user opens the door 11 and then disconnects the liquid nitrogen storage tank 301 from the three-way valve 304 by disassembling the connector 303. This makes it easy to replace the liquid nitrogen storage tank 301 and ensure subsequent cooling processing.

[0034] In summary, this cooling device for hot-melt welding of automotive sealing strips, by setting up a refrigeration component 3, can transport liquid nitrogen cold gas from the liquid nitrogen storage tank 301 to the air outlet 305 via the air outlet pipe 302, connector 303 and three-way valve 304, and spray it out inside the air box 4. By setting up the blower component 5, external air can be introduced into the air box 4, so that the sprayed liquid nitrogen cold gas can be sprayed out through the air outlet pipe 6, thereby cooling the welding area of ​​the sealing strip and achieving a rapid cooling effect at the welding area.

[0035] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for hot-melt welding of a car weather strip, comprising a base (1) and a top box (2), characterized in that: The inner cavity of the top box (2) is provided with a cooling component (3), the bottom of the top box (2) is fixedly connected with a blower (4), both sides of the blower (4) are connected to a blower component (5), the bottom of the inner cavity of the blower (4) is connected to an air outlet pipe (6), and the top of the base (1) is fixedly connected to a support rod (10) around its top, the top of the support rod (10) being fixedly connected to the top box (2).

2. A cooling device for hot melt welding of a weather strip for a vehicle according to claim 1, characterized in that: The refrigeration assembly (3) includes two liquid nitrogen storage tanks (301) installed on both sides of the inner cavity of the top box (2). One end of each liquid nitrogen storage tank (301) is connected to an outlet pipe (302). The other end of the outlet pipe (302) is connected to a connector (303). The other end of the connector (303) is connected to a three-way valve (304) through a pipe. The bottom of the three-way valve (304) is connected to an outlet head (305). The bottom of the outlet head (305) penetrates the top box (2) and the air box (4) and extends into the inner cavity of the air box (4).

3. The cooling device for hot melt welding of a weather strip for an automobile according to claim 1, characterized in that: The blower assembly (5) includes two air ducts (501) connecting the two sides of the inner cavity of the air box (4). Each of the two air ducts (501) is equipped with a blower (502), and each of the two air ducts (501) is equipped with a dustproof net (503) on the opposite side.

4. The cooling device for hot melt welding of a weather strip for an automobile according to claim 2, characterized in that: The bottom of the inner cavity of the wind box (4) is provided with guide slopes (7) on both sides.

5. The cooling device for hot melt welding of a weather strip for an automobile according to claim 1, characterized in that: A connecting rod (8) is fixedly connected to the top of the three-way valve (304), and the top of the connecting rod (8) passes through the top box (2) and is fixedly connected to a handle (9).

6. The cooling device for hot melt welding of a weather strip for an automobile according to claim 1, characterized by: The base (1) is fixedly connected to casters (12) around its bottom.

7. The cooling device for hot melt welding of a weather strip for an automobile according to claim 1, characterized by: The top box (2) is provided with a box door (11) on its surface.

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