A quick release door device for a paint stripping kiln

Abstract

The application discloses a quick-release furnace door device for a paint stripping kiln, and belongs to the technical field of paint stripping kiln equipment, which comprises a paint stripping kiln main body, a mounting seat is fixedly installed on the front side of the paint stripping kiln main body, and a furnace door is rotationally connected through the mounting seat; the application drives a threaded rod to rotate by rotating a rotating handle, drives an adjusting rod to lift, makes a fixing rod and a lock catch quickly insert or separate, replaces the operation of tightening traditional bolts one by one, realizes quick opening and closing of the furnace door, greatly reduces downtime of each time when workpieces are loaded and unloaded, after the furnace door is closed, an air source control device sends air into a sealing air bag through a gas conveying pipe, the sealing air bag is inflated to fill gaps between the furnace door and the paint stripping kiln main body, the connection sealing property is ensured, sealing failure caused by mechanical abrasion is avoided, meanwhile, intrusion of external air and leakage of internal paint stripping agent steam are effectively prevented, and when the furnace door needs to be opened, gas in the air source control device can be discharged through the air source control device.

Description

Technical Field

[0001] This application relates to the technical field of paint stripping kiln equipment, and in particular to a quick-release furnace door device for paint stripping kilns. Background Technology

[0002] A paint stripping kiln is a specialized piece of equipment used to remove the surface coatings from scrap metal, primarily for processing scrap aluminum and other metal materials. It is suitable for processing various scrap aluminum materials containing paint or oil, such as waste aluminum cans, waste painted aluminum profiles, waste painted aluminum sheets, and machined aluminum shavings. Paint stripping kilns are widely used in industries such as chemical engineering, building materials, and metallurgy. The frequent opening and closing of the furnace door during the paint stripping process is a crucial aspect of daily operation.

[0003] Currently, most paint stripping kilns use traditional bolt-fixed furnace doors or complex mechanical locking furnace doors. Due to their complex structure, these furnace door structures are inconvenient to disassemble and maintain. Each time they are opened or closed, multiple bolts need to be loosened or tightened one by one, which is cumbersome, time-consuming and labor-intensive. Moreover, during disassembly and assembly, mechanical wear of the sealing components is likely to occur, reducing the sealing effect of the furnace door and allowing outside air to enter and dilute the flue gas, affecting the paint stripping quality and even posing safety hazards. Therefore, an improvement has been made to a quick-release furnace door device for paint stripping kilns. Utility Model Content

[0004] In view of the shortcomings of the prior art, this application provides a quick-release furnace door device for paint stripping kilns, which overcomes the shortcomings of the prior art and aims to solve the problems in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution: a quick-release furnace door device for a paint stripping kiln, comprising a paint stripping kiln body, a mounting base fixedly installed on the front side of the paint stripping kiln body and a furnace door rotatably connected to the mounting base, a latch fixedly connected to the outer wall of the furnace door on the side away from the mounting base, a positioning seat fixedly installed on the front side of the paint stripping kiln body on the side of the latch, a threaded rod rotatably connected to the inside of the positioning seat via a bearing, a handle fixedly connected to the lower end of the threaded rod, an adjusting rod threadedly sleeved on the outer surface of the threaded rod inside the positioning seat, a connecting block fixedly connected to the side of the adjusting rod near the furnace door, a fixing rod fixedly connected to the upper end of the connecting block, the upper end of the fixing rod slidably inserted into the inside of the latch, a sealing groove opened inside the furnace door, and an air-filled sealing unit provided inside the sealing groove.

[0006] By adopting the above technical solution, the rotating handle drives the threaded rod to rotate and the adjusting rod to rise and fall, so that the fixing rod and the locking buckle can be quickly inserted or separated, replacing the traditional operation of tightening bolts one by one. This realizes the rapid opening and closing of the furnace door, which greatly reduces the downtime during each loading and unloading of workpieces. The air-filled sealing unit in the sealing groove inflates and fills the gap when closed, avoiding sealing failure caused by mechanical wear, and effectively preventing the intrusion of external air and the leakage of internal paint remover vapor.

[0007] As a preferred technical solution of this application, the inflatable sealing unit includes a sealing airbag and an air source control device. The sealing airbag is embedded in the inside of the sealing groove, and the air source control device is located on the outside of the paint stripping kiln body. The air source control device is connected to the sealing airbag through an air supply pipe.

[0008] By adopting the above technical solution, after the furnace door is closed, the gas source control device delivers air to the sealing airbag through the gas supply pipe, causing the sealing airbag to inflate and fill the gap between the furnace door and the paint stripping kiln body, ensuring the connection is sealed. When it is necessary to open the furnace door, the gas in the gas source control device can be discharged through the gas source control device.

[0009] As a preferred technical solution of this application, a controller is fixedly installed on the side wall of the paint stripping kiln body, and a pressure sensor is fixedly installed on the front side of the paint stripping kiln body. The pressure sensor is connected to the controller via a signal. A pressure sensing head is provided on the lower surface of the pressure sensor, and the bottom of the pressure sensing head abuts against the top of the fixing rod.

[0010] By adopting the above technical solution, the pressure sensor can detect the mechanical pressure applied by the fixed rod through the pressure sensing head only when the furnace door is in the safe locked state, and convert the physical pressure into an electrical signal and transmit it to the controller. Only after the controller receives the pressure signal can the paint stripping kiln body start and run normally, effectively ensuring the safety of the equipment and operators.

[0011] As a preferred technical solution of this application, the square tube structure of the adjusting rod is designed such that the outer wall of the side near the positioning seat is closely fitted with the inner wall of the positioning seat, and the number of the fixing rod and the latch are both three and correspond one-to-one, and the outer diameter of the fixing rod is the same as the inner diameter of the latch's lock hole.

[0012] By adopting the above technical solution, the outer wall of the adjusting rod and the inner wall of the positioning seat are closely fitted to form a surface contact guide, eliminating radial sway and ensuring that the adjusting rod can only move vertically along the axis of the threaded rod, ensuring the accuracy of movement, avoiding misalignment between the fixed rod and the lock, and ensuring the stability of the furnace door installation by setting multiple sets of locking structures.

[0013] As a preferred technical solution of this application, a support leg is fixedly installed at the bottom of the furnace door, and a movable wheel is provided at the bottom of the support leg.

[0014] By adopting the above technical solution, a supporting function is provided, and the presence of the casters makes it convenient for staff to rotate the furnace door.

[0015] As a preferred technical solution of this application, a sealing strip is fixedly connected to the inner wall of the door frame of the paint stripping kiln body, and the sealing strip is located between the paint stripping kiln body and the furnace door.

[0016] By adopting the above technical solution, the sealing performance of the connection is further improved by setting a sealing strip.

[0017] As a preferred technical solution of this application, the furnace door is provided with an observation window inside, the glass of the observation window is made of multi-layer laminated tempered glass, and the inner wall of the furnace door is coated with a high-temperature resistant coating.

[0018] By adopting the above technical solution, operators can monitor the working status inside the paint stripping kiln in real time without opening the furnace door through the observation window, which improves the safety and convenience of operation. The high-temperature resistant coating can reflect some heat, further improving the heat insulation effect of the furnace door.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, the rotating handle drives the threaded rod to rotate, thereby raising and lowering the adjusting rod. This allows the fixing rod and the locking buckle to be quickly engaged or disengaged, replacing the traditional operation of tightening bolts one by one. This enables the furnace door to be opened and closed quickly, greatly reducing downtime during each loading and unloading of workpieces. After the furnace door is closed, the gas source control device delivers air to the sealing airbag through the gas pipe, causing the sealing airbag to inflate and fill the gap between the furnace door and the paint stripping kiln body, ensuring the connection is sealed and preventing seal failure caused by mechanical wear. At the same time, it effectively prevents the intrusion of outside air and the leakage of internal paint stripper vapor. When it is necessary to open the furnace door, the gas in the gas source control device can be discharged through the gas source control device.

[0020] 2. In this utility model, the pressure sensor can only detect the mechanical pressure applied by the fixed rod through the pressure sensing head when the furnace door is in the safe locked state, and convert the physical pressure into an electrical signal and transmit it to the controller. Only after the controller receives the pressure signal can the paint stripping kiln body start and run normally, effectively ensuring the safety of the equipment and operators.

[0021] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the furnace door in the open state as per this application; Figure 3 This is a schematic diagram of the composition of the inflatable sealing unit of this application; Figure 4 This is a partial structural breakdown diagram of this application.

[0023] In the diagram: 1. Main body of the paint stripping kiln; 2. Mounting base; 3. Furnace door; 4. Lock; 5. Positioning seat; 6. Threaded rod; 7. Rotary handle; 8. Adjusting rod; 9. Connecting block; 10. Fixing rod; 11. Pressure sensor head; 12. Pressure sensor; 13. Controller; 14. Inflatable sealing unit; 1401. Sealing airbag; 1402. Gas supply pipe; 1403. Gas source control device; 15. Sealing groove; 16. High-temperature resistant coating; 17. Support leg; 18. Caster wheel; 19. Sealing strip; 20. Observation window. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 - Figure 4As shown in the figure, this embodiment provides a quick-release furnace door device for a paint stripping kiln, including a paint stripping kiln body 1. A mounting base 2 is fixedly installed on the front side of the paint stripping kiln body 1, and a furnace door 3 is rotatably connected to the mounting base 2. A latch 4 is fixedly connected to the outer wall of the furnace door 3 on the side away from the mounting base 2. A positioning seat 5 is fixedly installed on the front side of the paint stripping kiln body 1 on the side of the latch 4. A threaded rod 6 is rotatably connected to the inside of the positioning seat 5 through a bearing. A handle 7 is fixedly connected to the lower end of the threaded rod 6. An adjusting rod 8 is threadedly sleeved on the outer surface of the threaded rod 6 inside the positioning seat 5. A connecting block 9 is fixedly connected to the side of the adjusting rod 8 near the furnace door 3. A fixing rod is fixedly connected to the upper end of the connecting block 9. 10. The upper end of the fixing rod 10 is slidably inserted into the inside of the latch 4. The inside of the furnace door 3 is provided with a sealing groove 15. The inside of the sealing groove 15 is provided with an air-filled sealing unit 14. In use, by rotating the handle 7, the threaded rod 6 is driven to rotate, which drives the adjusting rod 8 to rise and fall, so that the fixing rod 10 and the latch 4 can be quickly inserted or separated. This replaces the traditional operation of tightening bolts one by one, realizing the rapid opening and closing of the furnace door 3, which greatly reduces the downtime when loading and unloading workpieces. When the sealing groove 15 is closed, the air-filled sealing unit 14 is inflated and expands to fill the gap, avoiding the sealing failure caused by mechanical wear. At the same time, it effectively prevents the intrusion of outside air and the leakage of paint remover vapor inside.

[0026] In this embodiment, as Figure 3 As shown, the air-filled sealing unit 14 includes a sealing airbag 1401 and an air source control device 1403. The sealing airbag 1401 is embedded in the sealing groove 15. The air source control device 1403 is located on the outside of the paint stripping kiln body 1. The air source control device 1403 is connected to the sealing airbag 1401 through the air supply pipe 1402. In use, after the furnace door 3 is closed, the air source control device 1403 delivers air to the sealing airbag 1401 through the air supply pipe 1402, causing the sealing airbag 1401 to inflate and fill the gap between the furnace door 3 and the paint stripping kiln body 1, ensuring the connection is sealed. When it is necessary to open the furnace door 3, the gas in the air source control device 1403 can be discharged through the air source control device 1403.

[0027] In this embodiment, as Figure 1As shown, a controller 13 is fixedly installed on the side wall of the paint stripping kiln body 1, and a pressure sensor 12 is fixedly installed on the front side of the paint stripping kiln body 1. The pressure sensor 12 is connected to the controller 13. A pressure sensing head 11 is provided on the lower surface of the pressure sensor 12. The bottom of the pressure sensing head 11 abuts against the top of the fixing rod 10. In use, the pressure sensor 12 can only detect the mechanical pressure applied by the fixing rod 10 through the pressure sensing head 11 when the furnace door 3 is in the safe locked state, and convert the physical pressure into an electrical signal and transmit it to the controller 13. The controller 13 can only start and run normally after receiving the pressure signal, effectively ensuring the safety of the equipment and operators.

[0028] In this embodiment, as Figure 1 and 4 As shown, the adjusting rod 8 has a square tube structure design. Its outer wall near the positioning seat 5 is tightly fitted with the inner wall of the positioning seat 5. There are three fixing rods 10 and three locking buckles 4, which are set one-to-one. The outer diameter of the fixing rod 10 is the same as the inner diameter of the locking hole of the locking buckle 4. In use, the outer wall of the adjusting rod 8 is tightly fitted with the inner wall of the positioning seat 5 to form a surface contact guide, eliminating radial shaking and ensuring that the adjusting rod 8 can only move vertically along the axis of the threaded rod 6, ensuring the accuracy of movement and avoiding the misalignment of the fixing rod 10 and the locking buckle 4. By setting multiple sets of locking structures, the installation stability of the furnace door 3 is ensured.

[0029] In this embodiment, as Figure 3 As shown, a support leg 17 is fixedly installed at the bottom of the furnace door 3. The bottom of the support leg 17 is provided with a movable wheel 18, which plays a supporting role during use, and the presence of the movable wheel 18 makes it convenient for the staff to rotate the furnace door 3.

[0030] In this embodiment, as Figure 1 and 2 As shown, a sealing strip 19 is fixedly connected to the inner wall of the door frame of the paint stripping kiln body 1. The sealing strip 19 is located between the paint stripping kiln body 1 and the furnace door 3. During use, the sealing strip 19 is used to further improve the connection sealing performance.

[0031] In this embodiment, as Figure 1 and 3 As shown, the interior of the furnace door 3 is equipped with an observation window 20. The glass of the observation window 20 is made of multi-layer laminated tempered glass. The inner wall of the furnace door 3 is coated with a high-temperature resistant coating 16. During use, the operator can monitor the working status inside the paint stripping kiln body 1 in real time through the observation window 20 without opening the furnace door 3, which improves the safety and convenience of operation. The high-temperature resistant coating 16 can reflect some heat, further improving the heat insulation effect of the furnace door 3.

[0032] The working principle of this utility model is as follows: When using the quick-release furnace door device for paint stripping kilns according to this application, after the operator closes the furnace door 3, the operator drives the threaded rod 6 to rotate by rotating the handle 7, which in turn drives the adjusting rod 8 to rise, causing the fixed rod 10 to move upward and slide into the lock 4. When the pressure sensor 12 detects the mechanical pressure applied by the fixed rod 10 through the pressure sensing head 11, the operator can stop rotating the handle 7. At this time, the furnace door 3 is in a safe locked state. Then, the air source control device 1403 is activated to supply air into the sealing airbag 1401, causing the sealing airbag 1401 to inflate and fill the gap between the furnace door 3 and the paint stripping kiln body 1, thereby ensuring the connection is sealed. After that, the paint stripping kiln body 1 can be started to perform paint stripping work. After the work is completed, the gas in the air source control device 1403 is discharged through the air source control device 1403, and then the handle 7 is rotated in the opposite direction to open the furnace door 3.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A quick-release furnace door device for a paint stripping kiln, comprising a paint stripping kiln body (1), characterized in that, The front side of the paint stripping kiln body (1) is fixedly installed with a mounting base (2) and a furnace door (3) is rotatably connected to the mounting base (2). A latch (4) is fixedly connected to the outer wall of the furnace door (3) away from the mounting base (2). A positioning seat (5) is fixedly installed on the front side of the paint stripping kiln body (1) on the side of the latch (4). A threaded rod (6) is rotatably connected to the inside of the positioning seat (5) through a bearing. A throttle (7) is fixedly connected to the lower end of the threaded rod (6). An adjusting rod (8) is threadedly sleeved on the outer surface of the threaded rod (6) inside the positioning seat (5). A connecting block (9) is fixedly connected to the side of the adjusting rod (8) near the furnace door (3). A fixing rod (10) is fixedly connected to the upper end of the connecting block (9). The upper end of the fixing rod (10) is slidably inserted into the inside of the latch (4). A sealing groove (15) is opened inside the furnace door (3). An air-filled sealing unit (14) is provided inside the sealing groove (15).

2. The quick-release furnace door device for a paint stripping kiln according to claim 1, characterized in that, The inflatable sealing unit (14) includes a sealing airbag (1401) and an air source control device (1403). The sealing airbag (1401) is embedded in the inside of the sealing groove (15). The air source control device (1403) is located on the outside of the paint stripping kiln body (1). The air source control device (1403) is connected to the sealing airbag (1401) through the air supply pipe (1402).

3. A quick-release furnace door device for a paint stripping kiln according to claim 1, characterized in that, A controller (13) is fixedly installed on the side wall of the paint stripping kiln body (1), and a pressure sensor (12) is fixedly installed on the front side of the paint stripping kiln body (1). The pressure sensor (12) is connected to the controller (13) by signal. A pressure sensing head (11) is provided on the lower surface of the pressure sensor (12), and the bottom of the pressure sensing head (11) abuts against the top of the fixing rod (10).

4. A quick-release furnace door device for a paint stripping kiln according to claim 1, characterized in that, The adjusting rod (8) has a square tube structure design, and its outer wall near the positioning seat (5) is closely fitted with the inner wall of the positioning seat (5). The number of the fixing rod (10) and the latch (4) are three in each case and correspond one to one. The outer diameter of the fixing rod (10) is the same as the inner diameter of the lock hole of the latch (4).

5. A quick-release furnace door device for a paint stripping kiln according to claim 1, characterized in that, The bottom of the furnace door (3) is fixedly installed with a support leg (17), and the bottom of the support leg (17) is provided with a moving wheel (18).

6. A quick-release furnace door device for a paint stripping kiln according to claim 1, characterized in that, A sealing strip (19) is fixedly connected to the inner wall of the door frame of the paint stripping kiln body (1), and the sealing strip (19) is located between the paint stripping kiln body (1) and the furnace door (3).

7. A quick-release furnace door device for a paint stripping kiln according to claim 1, characterized in that, The furnace door (3) is provided with an observation window (20) inside. The glass of the observation window (20) is made of multi-layer laminated tempered glass. The inner wall of the furnace door (3) is coated with a high-temperature resistant coating (16).

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