Sealing door of replacement chamber of roller bed furnace

Abstract

The utility model relates to the technical field of kilns, and discloses a roller bed furnace replacement chamber sealing door which comprises a door frame, a door plate, a lifting mechanism and a blocking mechanism. According to the roller furnace replacement chamber sealing door, the door plate hinged to the door frame through the connecting rod is designed, the lifting mechanism is matched with the blocking mechanism, the door plate does not make contact with the to-be-sealed opening of the replacement chamber in the switching process of the door opening position and the door closing position, the door plate moves towards the to-be-sealed opening after reaching the door closing position, and pressing sealing is achieved; therefore, the sealing performance of the replacement chamber cavity is guaranteed when the sealing door is closed, sliding friction is avoided in the lifting process of the door plate, metal powder cannot be generated to interfere with product components, and the use requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of kiln technology, and in particular to a sealing door for the replacement chamber of a roller kiln. Background Technology

[0002] The production process of lithium battery materials typically involves placing the materials in saggers and then sintering them in a kiln. Because these materials have stringent requirements for the concentration of the process atmosphere within the kiln, gas replacement chambers are usually located at both ends of the kiln to ensure a sufficient process atmosphere. Existing replacement chambers are equipped with multiple sealed doors, which divide the chamber into multiple cavities, each capable of creating different temperature and atmospheric environments.

[0003] However, most current sealing doors are of the slide valve structure. During repeated opening and closing, the door panel slides and rubs against the door frame, which can easily cause a decrease in the sealing performance of the cavity. In addition, metal powder is generated during the friction process. If the metal powder falls into the crucible, it will interfere with the material composition and affect the product quality. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a sealing door for the replacement chamber of a roller furnace, improve the structure and opening and closing form of the sealing door, ensure sealing performance, and reduce sliding friction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing door for a roller furnace replacement chamber includes a door frame, a door panel, a lifting mechanism, and a blocking mechanism, wherein:

[0007] The door frame is located on one side of the opening to be sealed in the replacement chamber;

[0008] The door panel stands upright between the door frame and the opening to be sealed. The door panel and the door frame are hinged together by a connecting rod. Under normal conditions, the door panel is pressed against the door frame by gravity and forms a gap with the opening to be sealed.

[0009] The lifting mechanism is used to drive the door frame to rise or fall relative to the opening to be sealed, thereby driving the door panel to alternately switch between the open and closed positions. When the door panel is in the open position, it completely avoids the opening to be sealed, and when the door panel is in the closed position, it faces the opening to be sealed.

[0010] The blocking mechanism is used to limit the downward travel of the door panel when it is in the closed position, so that when the door frame descends again relative to the door panel, the door panel is pushed toward the opening to be sealed.

[0011] As an alternative, the blocking mechanism includes a rotating rod, a drive cylinder, and baffles. A radial swing arm is provided on the rotating rod, and the output rod of the drive cylinder is hinged to the radial swing arm. Several baffles are distributed at intervals along the axial direction of the rotating rod, and the baffles are used to support the bottom of the door panel.

[0012] As an alternative, the baffle is equipped with rollers, and the bottom of the door panel is equipped with a base plate that engages with the rollers in rolling contact.

[0013] As an alternative, the lifting mechanism includes a geared motor, a worm, a worm wheel, and a lifting screw. The output shaft of the geared motor is connected to the worm, and the worm meshes with the worm wheel for transmission. The lifting screw passes through the worm wheel and is threaded into the worm wheel. The door frame is fixedly connected to the lifting screw.

[0014] As an optional solution, two lifting screws are provided, which lift synchronously, and the ends of the two lifting screws are respectively fixed to the top of the door frame by bolts.

[0015] As an alternative, lifting guide rails are provided on both sides of the door frame, and guide wheels that roll along the lifting guide rails are provided on the door frame.

[0016] As an alternative, multiple links are provided, and these links are arranged in an array on the surface of the door panel.

[0017] The beneficial effects of this utility model are:

[0018] Compared with existing technologies, the roller furnace replacement chamber sealing door is designed with a door panel that is hinged to the door frame via a connecting rod. Through the cooperation of a lifting mechanism and a blocking mechanism, the door panel does not come into contact with the opening to be sealed in the replacement chamber during the switching between the open and closed positions. After reaching the closed position, it moves towards the opening to be sealed to achieve a tight seal. This ensures the airtightness of the replacement chamber cavity when the sealing door is closed, and also eliminates sliding friction of the door panel during the lifting process, preventing the generation of metal powder that could interfere with the product composition, thus meeting the usage requirements. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the sealing door of the roller furnace replacement chamber provided in this embodiment of the utility model;

[0020] Figure 2 This is a structural disassembly diagram of the sealing door of the roller furnace replacement chamber provided in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the open state of the door panel of the sealing door of the roller furnace replacement chamber provided in this embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the door panel of the roller furnace replacement chamber sealing door in the raised state provided in this embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the door panel of the roller furnace replacement chamber sealing door being blocked in an embodiment of the present invention;

[0024] Figure 6This is a schematic diagram of the door panel of the roller furnace replacement chamber sealing door in the pressed and sealed state provided in this embodiment of the utility model.

[0025] In the attached image:

[0026] 1. Door frame; 11. Guide wheel; 2. Door panel; 21. Base plate; 3. Lifting mechanism; 31. Gear motor; 32. Lifting screw; 33. Lifting guide rail; 4. Blocking mechanism; 41. Rotating rod; 42. Drive cylinder; 43. Baffle; 44. Radial swing arm; 45. Roller; 5. Sealing opening; 6. Connecting rod. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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.

[0031] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0032] Please see Figures 1 to 6 As shown, this embodiment provides a sealing door for the replacement chamber of a roller furnace, including a door frame 1, a door panel 2, a lifting mechanism 3, and a blocking mechanism 4, wherein:

[0033] Door frame 1 is located on one side of the opening 5 to be sealed in the replacement chamber;

[0034] The door panel 2 is erected between the door frame 1 and the opening to be sealed 5. The door panel 2 and the door frame 1 are hinged by the connecting rod 6. In its natural state, the door panel 2 is pressed against the door frame 1 by gravity and forms a gap with the opening to be sealed 5.

[0035] The lifting mechanism 3 is used to drive the door frame 1 to rise or fall relative to the opening to be sealed 5, thereby driving the door panel 2 to alternately switch to the open position and the closed position. When the door panel 2 is in the open position, it completely avoids the opening to be sealed 5. When the door panel 2 is in the closed position, it faces the opening to be sealed 5.

[0036] The blocking mechanism 4 is used to limit the downward travel of the door panel 2 when it is in the closed position, so that when the door frame 1 descends again relative to the door panel 2, the door panel 2 is pushed toward the sealing opening 5.

[0037] Therefore, a door panel 2 was designed to be hinged to the door frame 1 via a connecting rod 6. Through the cooperation of the lifting mechanism 3 and the blocking mechanism 4, the door panel 2 does not come into contact with the sealing port 5 of the replacement chamber during the switching between the open and closed positions. After reaching the closed position, it moves towards the sealing port 5 to achieve a tight seal. This ensures the sealing of the replacement chamber cavity when the door is closed and also prevents the door panel 2 from sliding and rubbing during the lifting process, thus avoiding the generation of metal powder that could interfere with the product composition and meeting the usage requirements.

[0038] Optionally, the blocking mechanism 4 includes a rotating rod 41, a driving cylinder 42, and baffles 43. A radial swing arm 44 is provided on the rotating rod 41, and the output rod of the driving cylinder 42 is hinged to the radial swing arm 44. Several baffles 43 are distributed at intervals along the axial direction of the rotating rod 41, and the baffles 43 are used to support the bottom of the door panel 2.

[0039] Therefore, by driving the extension and retraction of the cylinder 42, the radial swing arm 44 is driven, and the radial swing arm 44 drives the rotating rod 41 to rotate, thereby controlling the baffle 43 to limit or avoid the lower end of the door panel 2.

[0040] Furthermore, a roller 45 is provided on the baffle 43, and a bottom plate 21 is provided at the bottom of the door panel 2 to cooperate with the roller 45 in rolling contact.

[0041] Since there is still contact damage between the baffle 43 and the bottom of the door panel 2 when the door panel 2 moves toward the sealing opening 5, the wear can be greatly reduced by the rolling contact between the roller 45 and the bottom plate 21, and the lateral movement of the door panel 2 can be made smoother.

[0042] Optionally, the lifting mechanism 3 includes a reduction motor 31, a worm, a worm wheel, and a lifting screw 32. The output shaft of the reduction motor 31 is connected to the worm, and the worm meshes with the worm wheel for transmission. The lifting screw 32 passes through the worm wheel and is threadedly engaged with the worm wheel. The door frame 1 is fixedly connected to the lifting screw 32.

[0043] Therefore, the worm gear is driven to rotate by the geared motor 31, and the worm wheel rotates accordingly. The relative rotational motion is converted into the movement of the lifting screw by the cooperation of the worm wheel and the lifting screw, thereby driving the door frame 1 to move up and down, thus meeting the driving requirements of the door frame 1.

[0044] Furthermore, there are two lifting screws 32, which lift synchronously, and the ends of the two lifting screws 32 are respectively fixed to the top of the door frame 1 by bolts.

[0045] This improves the stability and positional accuracy of the door frame 1 during lifting and lowering, ensuring that the door frame 1 will not tilt or deviate during frequent lifting and lowering, thereby ensuring the accurate movement of the door panel 2.

[0046] Optionally, lifting guide rails 33 are provided on both sides of the door frame 1, and guide wheels 11 are provided on the door frame 1 to roll along the lifting guide rails 33.

[0047] Therefore, by limiting the displacement of the door frame 1 through the lifting guide rail 33, the positional accuracy during the lifting process is ensured, and the guide wheel 11 can reduce the sliding friction between the door frame 1 and the lifting guide rail 33 during the lifting process, ensuring that the door frame 1 can lift smoothly.

[0048] Optionally, multiple links 6 are provided, and the multiple links 6 are arranged in an array on the surface of the door panel 2.

[0049] This ensures that the door panel 2 can only move slightly relative to the door frame 1, that the door panel 2 remains upright during movement, and that the door panel 2 can distribute pressure evenly when opening and closing, thus avoiding deformation or damage caused by uneven force and ensuring a tight seal when closed.

[0050] The specific process of opening and closing the sealing door of the roller furnace replacement chamber:

[0051] 1) The lifting mechanism 3 drives the door frame 1, causing the door panel 2 to descend to its lowest position, ensuring the sealing opening 5 is completely unobstructed, and the door panel 2 reaches the open position, such as... Figure 3 As shown, the blocking mechanism 4 is inactive at this time;

[0052] 2) The lifting mechanism 3 drives the door frame 1, which in turn drives the door panel 2 to gradually rise until the door panel 2 reaches the closed position, such as... Figure 4 As shown, the blocking mechanism 4 still does not function during the process, and the door panel 2 and the opening to be sealed 5 maintain a certain gap.

[0053] 3) The baffle 43 of the blocking mechanism 4 abuts against the bottom of the door panel 2, limiting the downward travel of the door panel 2, such as... Figure 5 As shown, ensure that door panel 2 is facing the sealing opening 5;

[0054] 4) The lifting mechanism 3 drives the door frame 1 to move downwards by a certain displacement. At this time, due to the restricted downward travel of the door panel 2 and the presence of the connecting rod 6, the door panel 2 can only move away from the door frame 1 and towards the sealing opening 5. Finally, the door panel 2 and the sealing opening 5 are tightly fitted together, achieving a reliable seal. Figure 6 As shown.

[0055] As can be seen from the above process, there is little sliding contact between the door panel 2 and the door frame 1, and between the door panel 2 and the opening to be sealed 5. Compared with the insert-type sealing door, this greatly reduces friction damage and ensures the sealing effect.

[0056] In addition, in this embodiment, the door panel 2 opens downward relative to the opening to be sealed 5. It can also be implemented if it opens upward, only by adjusting the action of the lifting mechanism 3 accordingly.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A sealed door for the replacement chamber of a roller furnace, characterized in that, It includes a door frame (1), a door panel (2), a lifting mechanism (3), and a blocking mechanism (4), wherein: The door frame (1) is located on one side of the opening (5) to be sealed in the replacement chamber; The door panel (2) is erected between the door frame (1) and the opening to be sealed (5). The door panel (2) and the door frame (1) are hinged together by a connecting rod (6). In its natural state, the door panel (2) is pressed against the door frame (1) by gravity and forms a gap with the opening to be sealed (5). The lifting mechanism (3) is used to drive the door frame (1) to rise or fall relative to the opening to be sealed (5), thereby driving the door panel (2) to alternately switch to the open position and the closed position. When the door panel (2) is in the open position, it completely avoids the opening to be sealed (5). When the door panel (2) is in the closed position, it faces the opening to be sealed (5). The blocking mechanism (4) is used to limit the downward travel of the door panel (2) in the closed position, so that when the door frame (1) descends again relative to the door panel (2), the door panel (2) is pushed towards the opening to be sealed (5).

2. The sealing door of the roller furnace replacement chamber according to claim 1, characterized in that, The blocking mechanism (4) includes a rotating rod (41), a driving cylinder (42), and baffles (43). A radial swing arm (44) is provided on the rotating rod (41). The output rod of the driving cylinder (42) is hinged to the radial swing arm (44). Several baffles (43) are distributed at intervals along the axial direction of the rotating rod (41). The baffles (43) are used to support the bottom of the door panel (2).

3. The sealing door of the roller furnace replacement chamber according to claim 2, characterized in that, The baffle (43) is provided with rollers (45), and the bottom of the door panel (2) is provided with a bottom plate (21) that is in rolling contact with the rollers (45).

4. The sealing door of the roller furnace replacement chamber according to claim 1, characterized in that, The lifting mechanism (3) includes a reduction motor (31), a worm, a worm wheel, and a lifting screw (32). The output shaft of the reduction motor (31) is connected to the worm. The worm meshes with the worm wheel for transmission. The lifting screw (32) passes through the worm wheel and is threadedly engaged with the worm wheel. The door frame (1) is fixedly connected to the lifting screw (32).

5. The sealing door of the roller furnace replacement chamber according to claim 4, characterized in that, There are two lifting screws (32), which lift synchronously, and the ends of the two lifting screws (32) are respectively fixed to the top of the door frame (1) by bolts.

6. The sealing door of the roller furnace replacement chamber according to claim 1, characterized in that, The door frame (1) is provided with lifting guide rails (33) on both sides, and the door frame (1) is provided with guide wheels (11) that roll along the lifting guide rails (33).

7. The sealing door of the roller furnace replacement chamber according to claim 1, characterized in that, Multiple connecting rods (6) are provided, and the multiple connecting rods (6) are arranged in an array on the surface of the door panel (2).

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