Glue discharging box with self-adaptive sealing and efficient air cooling mechanism

Abstract

The invention belongs to the technical field of glue discharging boxes, and particularly relates to a glue discharging box with a self-adaptive sealing and efficient air cooling mechanism, the glue discharging box comprises a hearth, a shell, an air inlet fan, an exhaust fan and a sealing plate, the hearth is arranged in the shell, and an airflow channel is formed between the outer wall of the hearth and the inner wall of the shell; the air inlet fan and the exhaust fan are arranged in the airflow channel and communicated to the outside of the shell through air holes, the air inlet fan and the exhaust fan each comprise a cylinder, one end of the sealing plate is rotationally connected to the cylinder, and the other end of the sealing plate is slidably connected to the wall of the air holes. A plurality of first telescopic cylinders are arranged on the inner wall of the shell and connected with the barrel, the first telescopic cylinders stretch out and draw back along with temperature changes and drive the barrel to ascend and descend, the barrel is far away from the shell and drives the sealing plate to open the air hole, and the barrel is close to the shell and drives the sealing plate to block the air hole. The air holes can be closed when heating is conducted in the hearth, and the air holes are opened for heat dissipation after heating is completed in the hearth.

Description

Technical Field

[0001] The invention belongs to the technical field of degreasing boxes, and particularly relates to a degreasing box with an adaptive sealing and efficient air-cooling mechanism. Background Technique

[0002] A degreasing box is an industrial device for high-temperature treatment in a precisely controlled gas environment. By introducing specific gases (such as nitrogen, hydrogen, argon, or mixed gases) into the furnace or evacuating the air, oxygen and other harmful components are isolated, thereby avoiding adverse reactions such as oxidation, decarburization, and corrosion of materials during the heating process. A degreasing box usually consists of a furnace chamber, a thermal insulation layer outside the furnace chamber, a heating system, a gas control system, a temperature control system, and safety devices. The furnace body is made of high-temperature-resistant materials (such as ceramic fiber, stainless steel) and is designed with a multi-layer heat insulation structure, combined with high-efficiency heating elements such as resistance wires and silicon molybdenum rods, to ensure the temperature uniformity in the furnace (within ±5°C). The gas control system can dynamically adjust the gas type, flow rate, and pressure, support the switching of inert protection, reducing atmosphere, or vacuum environment, and meet the diverse workpiece requirements. In terms of safety, gas leakage detection, over-temperature alarm, pressure relief valve, and explosion-proof devices are equipped to ensure safe operation.

[0003] After the degreasing box is heated, it is necessary to cool the inside of the degreasing box, generally by liquid cooling or air cooling. When applying rapid cooling for the processing of some materials, the temperature difference between the surface and the inside of the material is significant, resulting in uneven shrinkage and internal stress generation. To avoid material damage, therefore, in such scenarios, the air cooling method is usually used to slowly cool the inside of the degreasing box. When using an air-cooling mechanism, the air-cooling mechanism is arranged between the furnace chamber and the thermal insulation layer. The air-cooling mechanism dissipates heat from the furnace chamber after the heating in the furnace chamber is completed. However, the thermal insulation layer outside the furnace chamber is connected to the outside through the air-cooling mechanism, resulting in part of the heat being dissipated to the outside along the air-cooling mechanism channel during the heating of the furnace chamber. It takes a longer time for the furnace chamber to reach the working temperature and the temperature is unstable due to heat dissipation. The existing air-cooling mechanisms in the prior art are difficult to adjust the connection state between the thermal insulation layer and the outside according to the working state in the furnace chamber. Based on this, it is necessary to design a degreasing box that can adjust the working state of the air-cooling mechanism according to the heating state in the furnace chamber. Summary of the Invention

[0004] To solve the above problems existing in the prior art, the invention provides a degreasing box with an adaptive sealing and efficient air-cooling mechanism.

[0005] The object of the invention can be achieved by the following technical solutions:

[0006] A debinding box with an adaptive sealing and efficient air-cooling mechanism of the present invention comprises a furnace chamber, a housing, an intake fan, an exhaust fan and a sealing plate. The furnace chamber is arranged inside the housing. An air flow channel is formed between the outer wall of the furnace chamber and the inner wall of the housing. The intake fan and the exhaust fan are respectively arranged in the air flow channel and communicated to the outside of the housing through air holes. Both the intake fan and the exhaust fan include a cylinder body. One end of the sealing plate is rotatably connected to the cylinder body, and the other end is slidably connected to the wall of the air hole. A plurality of first telescopic cylinders are arranged on the inner wall of the housing and connected to the cylinder body. The first telescopic cylinder expands and contracts with temperature change and drives the cylinder body to lift. The cylinder body moves away from the housing and drives the sealing plate to open the air hole. The cylinder body moves close to the housing and drives the sealing plate to block the air hole.

[0007] Further, two sealing plates are rotatably arranged on the cylinder body, and the two sealing plates are symmetrically arranged on both sides of the cylinder body.

[0008] Further, a sliding groove is arranged on the wall of the air hole. The sliding groove is horizontally arranged on the wall of the air hole and the two ends are bent into rounded corners towards the furnace chamber side. One end of the sealing plate is slidably arranged in the sliding groove.

[0009] Further, a plurality of heating pipes are arranged on the inner wall of the furnace chamber. A second telescopic cylinder is connected to the heating pipe. The telescopic end of the second telescopic cylinder is connected to the cylinder body. The heating pipe is used for heating inside the furnace chamber and heating the second telescopic cylinder. The second telescopic cylinder expands and contracts with the temperature change of the heating pipe. The second telescopic cylinder and the first telescopic cylinder face in opposite directions.

[0010] Further, the diameter of the second telescopic cylinder is smaller than the diameter of the first telescopic cylinder.

[0011] Further, a gas or a liquid is arranged inside the first telescopic cylinder and the second telescopic cylinder.

[0012] Further, the adjacent edges of the two sealing plates and the edges of the sealing plate in contact with the air hole wall are all rounded corners.

[0013] Further, an atmosphere tank and a vacuum machine are further included. Both the atmosphere tank and the vacuum machine are communicated to the inside of the furnace chamber through pipelines.

[0014] The beneficial effects of the present invention are as follows: Since the second telescopic cylinder is in direct contact with the heating pipe, the heat absorbed by the first telescopic cylinder is less than that of the second telescopic cylinder. Therefore, the internal pressure of the first telescopic cylinder is less than that of the second telescopic cylinder, and thus the air hole remains in a blocked state. After the heating in the furnace chamber is completed, the second telescopic cylinder loses the heat supply. When the temperature in the furnace chamber still overflows to the air flow channels inside and outside, at this time, since the diameter of the second telescopic cylinder is smaller than that of the first telescopic cylinder, after the temperature of the air flow channels in the furnace chamber and inside the housing causes the pressure in the first telescopic cylinder and the second telescopic cylinder to change, the first telescopic cylinder will push the intake fan and the exhaust fan away from the inner wall of the housing and open the two sealing plates to open the air hole for air flow and heat dissipation until the temperature dissipates to room temperature and then the first telescopic cylinder resets and closes the air hole again. By setting the first telescopic cylinder and the second telescopic cylinder and their different sizes, it is possible to close the air hole for heat preservation and insulation during heating in the furnace chamber, and open the air hole for heat dissipation after the heating in the furnace chamber is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 Structural schematic diagram of the air hole closed for the present invention;

[0017] Figure 2 Structural schematic diagram during the opening process of the air hole for the present invention;

[0018] Figure 3 Structural schematic diagram of the air hole fully opened for the present invention;

[0019] Figure 4 is Figure 2 Enlarged schematic diagram at A in

[0020] Legend: 1, housing; 2, furnace chamber; 3, atmosphere tank; 4, vacuum machine; 5, intake fan; 6, exhaust fan; 7, heating pipe; 8, first telescopic cylinder; 9, sealing plate; 10, sliding groove; 11, second telescopic cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, will describe in detail the specific embodiments, structures, features and their effects according to the present invention.

[0022] Such as Figures 1-4As shown in the figure, a debinding box with an adaptive sealing and efficient air-cooling mechanism includes a furnace chamber 2, a housing 1, an intake fan 5, an exhaust fan 6, and a sealing plate 9. The furnace chamber 2 is disposed inside the housing 1. An air flow channel is formed between the outer wall of the furnace chamber 2 and the inner wall of the housing 1. The intake fan 5 and the exhaust fan 6 are respectively disposed in the air flow channel and communicated to the outside of the housing 1 through air holes. Both the intake fan 5 and the exhaust fan 6 include a cylinder body. One end of the sealing plate 9 is rotatably connected to the cylinder body, and the other end is slidably connected to the wall of the air hole. A plurality of first telescopic cylinders 8 are disposed on the inner wall of the housing 1 and connected to the cylinder body. The first telescopic cylinders 8 expand and contract with temperature changes and drive the cylinder body to move up and down. The cylinder body moves away from the housing 1 and drives the sealing plate 9 to open the air hole, and the cylinder body moves close to the housing 1 and drives the sealing plate 9 to block the air hole;

[0023] When an air-cooling mechanism is used for heat dissipation in the debinding box, the air-cooling mechanism is disposed between the furnace chamber 2 and the heat-insulating layer. The air-cooling mechanism dissipates heat from the furnace chamber 2 after heating in the furnace chamber 2. However, the housing 1, which serves as the heat-insulating layer on the outside of the furnace chamber 2, is communicated with the outside through the air-cooling mechanism, resulting in partial heat loss to the outside along the air-cooling mechanism channel during the heating of the furnace chamber 2. It takes a longer time for the furnace chamber 2 to reach the working temperature and the temperature is unstable due to heat loss. It is difficult for the air-cooling mechanism in the prior art to adjust the communication state between the heat-insulating layer and the outside according to the working state in the furnace chamber 2;

[0024] In order to close the air holes to maintain the temperature inside the furnace chamber 2 during heating in the furnace chamber 2, and to open the air holes for heat dissipation after the heating in the furnace chamber 2 is completed, an air flow channel is formed between the furnace chamber 2 and the interior of the housing 1 by supporting the furnace chamber 2 inside the housing 1. The furnace chamber 2 can be made of stainless steel and form a seal, and heat insulation materials are provided inside the housing 1 for heat preservation and insulation. Air holes are respectively provided at the top and bottom of the housing 1, and an intake fan 5 and an exhaust fan 6 are provided at the positions of the two air holes inside the housing 1. A first telescopic cylinder 8 is provided around the air holes in the air flow channel. The fixed end of the first telescopic cylinder 8 is connected to the inner wall of the housing 1, and the movable end of the first telescopic cylinder 8 is connected to the cylinder body of the exhaust fan 6 or the intake fan 5. In the initial state, the first telescopic cylinder 8 is in a retracted state, and a sealing plate 9 connected to the cylinder body covers the air hole. When the furnace chamber 2 is heated to a certain extent, the heat inside the furnace chamber 2 diffuses to the outside housing 1, and the temperature in the air flow channel rises. After the first telescopic cylinder 8 absorbs heat, the gas or liquid inside expands or vaporizes and pushes the movable end to extend, and drives the intake fan 5 and the exhaust fan 6 away from the inner wall of the housing 1, and the sealing plate 9 also slides open the air hole along with the movement of the cylinder bodies of the intake fan 5 and the exhaust fan 6 away. Action switches are provided on the intake fan 5 and the exhaust fan 6, so that the intake fan 5 and the exhaust fan 6 are opened or closed along with the telescopic action. While the intake fan 5 and the exhaust fan 6 are pushed by the first telescopic cylinder 8 to open the air hole, the intake fan 5 and the exhaust fan 6 are started, so that the air flow inside the housing 1 flows and takes away the heat inside the housing 1 and the furnace chamber 2. After the heat dissipation in the housing 1 and the furnace chamber 2 is completed, the gas and liquid in the first telescopic cylinder 8 cool down and shrink in volume again, and the telescopic end retracts, and the air hole is closed again for the next use.

[0025] In order to prevent the telescopic end of the first telescopic cylinder 8 from extending and opening the air hole as the temperature inside the housing 1 rises during the heating process. According to the different temperatures required for heat treatment of different products, since the inner wall of the furnace chamber 2 is made of refractory bricks or stainless steel, it can effectively prevent heat from diffusing to the outside at relatively low high temperatures (such as below 300°C - 500°C), and only natural heat dissipation is required. Heat diffusion will only occur at relatively high temperatures (such as above 700°C). In this case, the heat inside the furnace chamber 2 will be dissipated into the air flow channel inside the housing 1 and be absorbed by the first telescopic cylinder 8, causing it to have a telescopic action.

[0026] In an embodiment, in order to enable the actions of the intake fan 5 and the exhaust fan 6 to drive the sealing plate 9 to close the air hole and form a relatively sealed state to prevent heat from overflowing, two sealing plates 9 are rotatably provided on the cylinder body, and the sealing plates 9 are symmetrically arranged on both sides of the cylinder body; a sliding groove 10 is provided on the air hole wall, and the sliding groove 10 is horizontally arranged on the air hole wall and both ends are bent into rounded corners towards the furnace chamber 2 side, and one end of the sealing plate 9 is slidably arranged in the sliding groove 10;

[0027] Specifically, when the two sealing plates 9 are in the open state, they rotate to the outer sides of both sides of the cylinder body. The two sealing plates 9 are rotatably connected to the cylinder body and slidably connected to the sliding grooves 10 on the air hole wall. Since the two ends of the sliding grooves 10 are rounded, when the cylinder body is pushed away from the inner wall of the housing 1, the two sealing plates 9 rotate on the cylinder body while sliding in the sliding grooves 10 at the same time. They gradually rotate from the original horizontal state to an inclined state until they are finally completely vertical. The two sealing plates 9 gradually move away from each other during the opening process. After the temperature gradually drops, the telescopic end of the first telescopic cylinder 8 gradually retracts, driving the cylinder body closer to the inner wall of the housing 1. The cylinder body will push the two sealing plates 9 to approach each other along the original route until the two sealing plates 9 are completely horizontal and fill and seal the air holes.

[0028] Since the processing time varies according to different materials, if the processing time in the furnace chamber 2 is too long, although it does not reach a high temperature, a large amount of heat still diffuses out. As a result, when the furnace chamber 2 is still being heated, the first telescopic cylinder 8 absorbs heat and extends, pushing the intake fan 5 and the exhaust fan 6 away and opening the air holes, resulting in heat loss in the housing 1 and the furnace chamber 2. To avoid this problem, in one embodiment, a plurality of heating pipes 7 are provided on the inner wall of the furnace chamber 2. A second telescopic cylinder 11 is connected to the heating pipes 7. The telescopic end of the second telescopic cylinder 11 is connected to the cylinder body. The heating pipes 7 are used for heating in the furnace chamber 2 and heating the second telescopic cylinder 11. The second telescopic cylinder 11 expands and contracts with the temperature change of the heating pipes 7. The second telescopic cylinder 11 faces in the opposite direction to the first telescopic cylinder 8; the diameter of the second telescopic cylinder 11 is smaller than the diameter of the first telescopic cylinder 8;

[0029] Since the second telescopic cylinder 11 is directly connected to the heating pipe 7, the heat it absorbs is more than that of the first telescopic cylinder 8. Since the diameter of the first telescopic cylinder 8 is larger than that of the second telescopic cylinder 11, at the same temperature, the pressure and thrust generated in the first telescopic cylinder 8 are greater. Therefore, in the initial state, the first telescopic cylinder 8 is in the retracted state. As a result, both the intake fan 5 and the exhaust fan 6 are close to the inner wall of the housing 1, and the air holes corresponding to the intake fan 5 and the exhaust fan 6 are sealed by two sealing plates 9. When heating is carried out in the furnace chamber 2, since the telescopic end of the second telescopic cylinder 11 will extend after absorbing heat, the intake fan 5 and the exhaust fan 6 still remain close to the air holes and keep the air holes closed to preserve heat. During this process, part of the heat overflows into the air flow channel inside the housing 1, causing the first telescopic cylinder 8 to also absorb heat. However, since the second telescopic cylinder 11 is in direct contact with the heating pipe 7, the heat absorbed by the first telescopic cylinder 8 is less than that of the second telescopic cylinder 11. Therefore, the internal pressure of the first telescopic cylinder 8 is less than that of the second telescopic cylinder 11, and the air holes remain in the sealed state. After the heating in the furnace chamber 2 is completed and the second telescopic cylinder 11 loses the heat supply, when the temperature in the furnace chamber 2 still overflows to the air flow channel inside and outside the housing 1, at this time, since the diameter of the second telescopic cylinder 11 is smaller than that of the first telescopic cylinder 8, after the temperature in the furnace chamber 2 and the air flow channel inside the housing 1 causes the pressure in the first telescopic cylinder 8 and the second telescopic cylinder 11 to change, the first telescopic cylinder 8 will push the intake fan 5 and the exhaust fan 6 away from the inner wall of the housing 1 and open the two sealing plates 9 to allow air flow and heat dissipation. Until the temperature dissipates to room temperature, the first telescopic cylinder 8 resets and closes the air holes again. Then, through the settings of the first telescopic cylinder 8 and the second telescopic cylinder 11 and their different sizes, it is possible to close the air holes for heat preservation and insulation during heating in the furnace chamber 2, and open the air holes for heat dissipation after the heating in the furnace chamber 2 is completed.

[0030] Furthermore, in order to enable the telescopic ends of the first telescopic cylinder 8 and the second telescopic cylinder 11 to produce telescopic movements according to different amounts of heat, in an embodiment, a gas or a liquid is provided in the first telescopic cylinder 8 and the second telescopic cylinder 11; it is mainly a gas or a liquid with a large volume change after absorbing heat.

[0031] Since the two sealing plates 9 approach or move away from each other during the opening and closing processes, and the actions of the two sealing plates 9 are synchronized, when closing to the final complete seal, it may cause the length of the bevel angle to be greater than the length of the air hole, resulting in the closing air hole action of the two sealing plates 9 being stuck. To avoid this problem, in an embodiment, the edges where the two sealing plates 9 are in contact with each other and the edges where the sealing plates 9 are in contact with the air hole walls are all rounded; as shown in the figure, the edges that the two sealing plates 9 first contact during the process of closing the air holes are rounded, and the edges that the two sealing plates 9 first contact with the air hole edges are also rounded. The rounded corner design can avoid contacting and receiving force from other side edges during movement, preventing the sealing plates 9 from being stuck.

[0032] Further, it also includes an atmosphere tank 3 and a vacuum machine 4, and both the atmosphere tank 3 and the vacuum machine 4 are connected to the furnace chamber 2 through pipelines;

[0033] The specific process of heating through the debinding box mainly includes the following steps:

[0034] ① Loading: Put the material to be sintered into the furnace chamber 2;

[0035] ② Vacuum pumping: Use the vacuum machine 4 to pump out the air in the furnace chamber 2 to form a vacuum environment;

[0036] ③ Atmosphere addition: Fill the required gas into the furnace chamber 2 through the atmosphere tank 3;

[0037] ④ Heating: Heat the furnace chamber 2 through the heating tube 7 to make the material reach the required high temperature;

[0038] ⑤ Heat preservation: Keep it at a certain temperature for a period of time to enable the material to fully undergo chemical reactions and crystallization;

[0039] ⑥ Cooling: After the sintering is completed, start the intake fan 5 and the exhaust fan 6 and open the air holes to cool the furnace chamber 2 of the housing 1, so that the material gradually cools down to room temperature.

[0040] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A debinding box with an adaptive sealing and efficient air-cooling mechanism, characterized in that: It includes a furnace chamber, a housing, an intake fan, an exhaust fan and a sealing plate. The furnace chamber is arranged inside the housing. An air flow channel is formed between the outer wall of the furnace chamber and the inner wall of the housing. The intake fan and the exhaust fan are respectively arranged in the air flow channel and communicated to the outside of the housing through air holes. Both the intake fan and the exhaust fan include a cylinder body. One end of the sealing plate is rotatably connected to the cylinder body, and the other end is slidably connected to the wall of the air hole. A number of first telescopic cylinders are arranged on the inner wall of the housing and connected to the cylinder body. The first telescopic cylinder expands and contracts with temperature change and drives the cylinder body to rise and fall. The cylinder body moves away from the housing and drives the sealing plate to open the air hole. The cylinder body approaches the housing and drives the sealing plate to block the air hole.

2. The debinding box with an adaptive sealing and efficient air cooling mechanism according to claim 1, wherein: Two sealing plates are rotatably arranged on the cylinder body, and the two sealing plates are symmetrically arranged on both sides of the cylinder body.

3. The debinding box with an adaptive sealing and efficient air cooling mechanism according to claim 2, characterized in that: A sliding groove is arranged on the wall of the air hole. The sliding groove is horizontally arranged on the wall of the air hole and the two ends are bent into rounded corners towards the furnace chamber side. One end of the sealing plate is slidably arranged in the sliding groove.

4. The debinding box with an adaptive sealing and efficient air cooling mechanism according to claim 1, wherein: A number of heating tubes are arranged on the inner wall of the furnace chamber. A second telescopic cylinder is connected to the heating tube. The telescopic end of the second telescopic cylinder is connected to the cylinder body. The heating tube is used for heating inside the furnace chamber and heating the second telescopic cylinder. The second telescopic cylinder expands and contracts with the temperature change of the heating tube. The second telescopic cylinder and the first telescopic cylinder face in opposite directions.

5. The debinding box with an adaptive sealing and efficient air cooling mechanism according to claim 4, wherein: The diameter of the second telescopic cylinder is smaller than the diameter of the first telescopic cylinder.

6. The debinding box with an adaptive sealing and efficient air-cooling mechanism according to claim 5, wherein: Gas or liquid is arranged inside the first telescopic cylinder and the second telescopic cylinder.

7. The debinding box with an adaptive sealing and efficient air cooling mechanism according to claim 2, characterized in that: The adjacent edges of the two sealing plates and the adjacent edges of the sealing plate and the air hole wall are all rounded corners.

8. The debinding box with an adaptive sealing and efficient air cooling mechanism according to claim 1, characterized in that: It further includes an atmosphere tank and a vacuum machine. Both the atmosphere tank and the vacuum machine are communicated to the inside of the furnace chamber through pipelines.

Images