Rapid sintering device for surface of sealing strip

By using a self-made multi-nozzle gas sintering equipment to perform high-temperature flame treatment on the surface of the sealing strip, the problem of the sealing strip being unable to be sintered quickly under high extrusion line speed was solved, thus improving the appearance quality and production efficiency of the product.

CN224116539UActive Publication Date: 2026-04-14SHANGHAI RONGNAN TECH CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Under the condition of an extrusion line speed of 16-20 meters per second, the surface of the sealing strip in the existing oven cannot be sintered quickly, resulting in poor product appearance and scrap.

Method used

Using a self-made multi-nozzle gas sintering equipment, a high-temperature flame is generated by a spray gun to rapidly heat the surface of the sealing strip, raising the temperature to 1700℃-2500℃, thereby achieving rapid sintering of the product surface.

Benefits of technology

It effectively solves problems such as dirt, air holes and belt indentations on the surface of the sealing strip, ensuring the stability of the product appearance and improving production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a rapid sintering device for the surface of a sealing strip. The device comprises an equipment bracket, a spray gun bracket and a spray gun, the equipment support is provided with two spray gun supports, the spray gun supports are in a circular ring shape, the arrangement directions of the two spray gun supports are opposite in the vertical direction, and the spray guns are arranged on the spray gun supports in a sliding mode. According to the utility model, the surface of a product is quickly heated by self-made multi-nozzle gas sintering equipment, and the baking temperature of an oven is increased from 300 DEG C to the flame baking temperature of 1700-2500 DEG C, so that the surface of the product is quickly sintered; the appearance outline of the product is solidified, the problems of smudginess, air holes, belt indentation and the like caused by unsolidified products are effectively solved, and the appearance stability of the product is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a device for rapid sintering of sealing strip surfaces. Background Technology

[0002] Previously, the main method for solving surface dirt and belt imprints in the product extrusion process was to bake the product in a high-temperature oven to rapidly vulcanize its surface. The principle was that the heat generated by the electric heating tube of the oven heated the product surface, thereby sintering the product surface. However, due to continuous extrusion with an average extrusion line speed of 16-20 meters per second, oven baking had certain limitations. The product surface could not be vulcanized sufficiently and quickly, resulting in poor appearance of the extruded sealing strips and a certain percentage of products still being scrapped. Utility Model Content

[0003] To address the problem that the surface of the extruded sealing strip cannot be quickly sintered under production conditions of 16-20 m / s extrusion speed in existing ovens, a device for rapid sintering of the sealing strip surface is proposed.

[0004] The technical solution of this utility model is: a rapid sintering device for the surface of a sealing strip, including an equipment bracket, a spray gun bracket, and a spray gun; the equipment bracket is provided with two spray gun brackets, the spray gun brackets are circular, the two spray gun brackets are set in opposite directions in the vertical direction, and the spray gun is slidably mounted on the spray gun bracket.

[0005] Preferably, a crossbeam is provided on one side of the equipment support, and the spray gun support is mounted on the crossbeam.

[0006] Preferably, the spray gun is provided with a slide table, and the spray gun is connected to the spray gun bracket through the slide table.

[0007] Preferably, the slide table is provided with multiple pulleys, and the slide table is connected to the spray gun bracket through the pulleys.

[0008] Preferably, the spray gun includes an ignition high-voltage wire, an ignition needle, and a spray gun housing; one end of the ignition high-voltage wire is connected to the ignition needle, and the ignition needle is inserted into the spray gun housing.

[0009] Preferably, the spray gun housing is provided with an air inlet and a gas inlet near the ignition high-voltage line.

[0010] Preferably, the spray gun housing is provided with an ignition needle bracket to provide support for the ignition needle.

[0011] Preferably, the end of the spray gun housing furthest from the ignition high-voltage line is the flame nozzle, which is connected to the nozzle.

[0012] The beneficial effects of this utility model are as follows: This utility model is a self-made multi-nozzle gas sintering equipment that rapidly heats the surface of the product, increasing the baking temperature from the original 300℃ oven to a flame baking temperature of 1700℃-2500℃, so that the surface of the product is sintered quickly; the product's appearance outline is solidified, effectively solving problems such as dirt, air holes, and belt marks caused by uncured products, and ensuring the stability of the product's appearance. Attached Figure Description

[0013] Figure 1 This is a perspective view of the rapid sintering device for the sealing strip surface of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the spray gun of this utility model.

[0015] The component names corresponding to the various reference numerals in the diagram are as follows:

[0016] 1. Equipment support; 11. Crossbeam; 2. Spray gun support; 21. Pulley; 3. Slide table; 4. Spray gun; 41. Ignition high voltage wire; 42. Ignition needle; 43. Spray gun housing; 431. Air inlet; 432. Gas inlet; 433. Ignition needle support; 434. Flame nozzle; 5. Nozzle. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0018] refer to Figure 1 As shown in the figure, this application discloses a rapid sintering device for the surface of a sealing strip, including an equipment support 1, a spray gun support 2, and a spray gun 4; the main body of the equipment support 1 is made of square tubing, which provides fixation and support for the various components of the sintering equipment; a crossbeam 11 is provided on one side of the equipment support 1, and two spray gun supports 2 are provided on the crossbeam 11. The spray gun supports 2 are circular, and the two spray gun supports 2 are set in opposite directions in the vertical direction. The spray gun 4 is slidably mounted on the spray gun support 2 and can rotate around the circular ring;

[0019] The spray gun 4 is equipped with a slide 3, and the distance in the front and rear directions can be adjusted by adjusting the slide 3; the spray gun 4 is connected to the spray gun bracket 2 through the slide 3.

[0020] The slide table 3 is provided with multiple pulleys 21, and the slide table 3 is connected to the spray gun bracket 2 through the pulleys 21;

[0021] Therefore, the spray gun of the sintering equipment can be adjusted forward and backward, as well as rotated 360 degrees; the extruded unvulcanized product is continuously produced and flows linearly, entering from the left side of the sintering equipment and flowing out from the right side. The spray gun of the sintering equipment is adjusted to be about 10-15 mm away from the product surface.

[0022] refer to Figure 2 As shown, the spray gun 4 includes an ignition high-voltage wire 41, an ignition needle 42, and a spray gun housing 43; one end of the ignition high-voltage wire 41 is connected to the ignition needle 42, and the ignition needle 42 is inserted into the spray gun housing 43. When the spray gun 4 is ignited, the ignition high-voltage wire 41 generates an ignition high voltage to provide an ignition voltage to the ignition needle 42. The voltage lasts for about 10 seconds; the spray gun housing 43 is the main structure of the spray gun 4, which serves as the body for mixing air and gas and fixing other components.

[0023] The spray gun housing 43 is provided with an air inlet 431 and a gas inlet 432 near the ignition high voltage line 41. Air with adjusted air pressure and flow rate enters the spray gun housing 43 through the air inlet 431, and gas with adjusted gas pressure and flow rate enters the spray gun housing 43 through the gas inlet 432.

[0024] The spray gun housing 43 has an ignition needle bracket 433 inside. The ignition needle bracket 433 is made of ceramic material, which provides support for the ignition needle 42 and prevents high-voltage discharge in the gas spray gun housing due to bending and deformation of the ignition needle 42 during high-voltage conduction.

[0025] The end of the spray gun housing 43 away from the ignition high voltage line 41 is the flame nozzle 434. The flame nozzle 434 is connected to the nozzle 5. The ignition needle 42 guides the ignition high voltage to the flame nozzle 434 at the front end of the spray gun 4 to perform high voltage discharge, generate an electric spark, and ignite the mixed gas and air gas injected from the spray gun 4, thereby spraying out flames.

[0026] After the spray gun 4 is ignited, the flame sprayed onto the product surface can reach a flame temperature of about 2000 degrees Celsius. Under this high temperature, the product surface is quickly sintered and solidified.

[0027] The beneficial effects are as follows: This utility model is a self-made multi-nozzle gas sintering equipment that rapidly heats the surface of the product, increasing the baking temperature from the original 300℃ oven to a flame baking temperature of 1700℃-2500℃, so that the product surface is sintered quickly; the product appearance outline is solidified, effectively solving problems such as dirt, air holes, and belt indentations caused by uncured products, and ensuring the stability of the product appearance.

[0028] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A device for rapid sintering of a sealing strip surface, characterized in that, It includes an equipment bracket (1), a spray gun bracket (2), and a spray gun (4); the equipment bracket (1) is provided with two spray gun brackets (2), the spray gun brackets (2) are circular, the two spray gun brackets (2) are set in opposite directions in the vertical direction, and the spray gun (4) is slidably set on the spray gun brackets (2).

2. The rapid sintering device for the surface of the sealing strip according to claim 1, characterized in that, The equipment bracket (1) has a crossbeam (11) on one side, and the spray gun bracket (2) is mounted on the crossbeam (11).

3. The rapid sintering device for the surface of the sealing strip according to claim 1, characterized in that, The spray gun (4) is equipped with a slide (3), and the spray gun (4) is connected to the spray gun bracket (2) through the slide (3).

4. The rapid sintering device for the surface of the sealing strip according to claim 3, characterized in that, The slide (3) is provided with multiple pulleys (21), and the slide (3) is connected to the spray gun bracket (2) through the pulleys (21).

5. The rapid sintering device for the surface of the sealing strip according to claim 1, characterized in that, The spray gun (4) includes an ignition high-voltage wire (41), an ignition needle (42), and a spray gun housing (43); one end of the ignition high-voltage wire (41) is connected to the ignition needle (42), and the ignition needle (42) is inserted inside the spray gun housing (43).

6. The rapid sintering device for the sealing strip surface according to claim 5, characterized in that, The spray gun housing (43) is provided with an air inlet (431) and a gas inlet (432) near the ignition high voltage line (41).

7. The rapid sintering device for the sealing strip surface according to claim 5, characterized in that, The spray gun housing (43) is provided with an ignition needle bracket (433) to provide support for the ignition needle (42).

8. The rapid sintering device for the surface of the sealing strip according to claim 5, characterized in that, The end of the spray gun housing (43) away from the ignition high voltage line (41) is the flame nozzle (434), and the flame nozzle (434) is connected to the nozzle (5).