Long roller sintering furnace

Abstract

The utility model relates to the technical field of sintering furnaces, and discloses a long roller sintering furnace which comprises an upper furnace body, a lower furnace body, a supporting wheel set, a power assembly and the like. According to the furnace, the furnace body comprises the upper furnace body and the lower furnace body which are arranged in a split mode, and due to the split type furnace body design, installation, debugging and long roller placement are convenient. The size of the heating cavity in the furnace body is larger than that of the roller body of the long roller, so that a gap can exist between the long roller and the inner wall of the furnace body when the long roller is located in the furnace body, a certain allowance is reserved in the axial direction after the long roller is installed, and the situation that the long roller is bent due to limiting after the long roller is heated and stretched is avoided. The supporting wheel set is arranged for supporting the long roller, and the power assembly is arranged for driving the supporting wheel set to rotate so that the long roller can be in the rotating state all the time in the three stages of heating, heat preservation and cooling of the furnace body, and it is guaranteed that the long roller cannot deform due to gravity in the whole sintering process while the long roller is heated evenly.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering furnaces, in particular to a long roller sintering furnace. Background Art

[0002] Liquid crystal substrate glass is a core component of liquid crystal displays (LCDs). During its production, the pulling roller is a crucial component on the production line, responsible for pulling and controlling the movement of the glass substrate. Using a resistance furnace to dehumidify the pulling roller during manufacturing improves its quality and processing efficiency, thereby meeting production requirements.

[0003] Firing and dehumidifying the pulling roller involves heating the roller at high temperatures to remove moisture and impurities from its surface. This process helps improve the roller's surface quality and durability. The roller's surface is cleaner and smoother after firing and dehumidification, facilitating smoother machining, reducing potential problems and complexity, and improving efficiency.

[0004] However, some traction rollers with larger lengths are prone to bending and deformation during the firing process, which will have a negative impact on the glass substrate during the process of traction and control of the movement of the glass substrate, seriously affecting the production quality of the glass substrate.

[0005] Contents of this utility model

[0006] The technical problem solved by the utility model is how to avoid deformation of the long roller during the sintering process.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A long roller sintering furnace, comprising:

[0009] Upper furnace body;

[0010] A lower furnace body, wherein a placement opening for cooperating with the upper furnace body is opened on one side of the lower furnace body, and the upper furnace body and the lower furnace body enclose a closed heating chamber, the length of the heating chamber is greater than the length of the traction roller, and a thermal element for heating is provided in the heating chamber;

[0011] Support wheel groups, each of the support wheel groups includes two rollers arranged at intervals, and the rollers are rotatably arranged on the outer wall of the lower furnace body;

[0012] A power assembly is used to drive two rollers in the same group to rotate in the same direction.

[0013] In one solution of the present invention: a lifting ring is fixedly provided on the upper furnace body.

[0014] In one solution of the present invention, an exhaust hole is provided on the upper furnace body, and a plug is filled in the exhaust hole.

[0015] In one solution of the present invention, a plurality of positioning pins are fixedly provided on one end of the lower furnace body for cooperating with the upper furnace body, and positioning holes for cooperating with the positioning pins are opened on the upper furnace body.

[0016] In one embodiment of the present invention, the thermal element includes a plurality of heating wires, and the heating wires are arranged on the bottom wall and both side walls in the length direction of the lower furnace body.

[0017] In one solution of the present invention: a positioning shaft is fixedly provided on the lower furnace body, the roller is sleeved on the positioning shaft, and a bearing is provided between the two.

[0018] In one embodiment of the present invention, the power assembly includes a power source and a driving wheel arranged on the output shaft of the power source, a driven sprocket is coaxially arranged on the roller, and the driving wheel and the driven sprocket are connected via a chain transmission.

[0019] In one embodiment of the present invention, the power assembly further comprises a transmission wheel set, which comprises at least two coaxially arranged transmission wheels, one transmission wheel being connected to the driving wheel via a chain transmission, and the other transmission wheel being connected to two driven sprockets via a chain transmission.

[0020] Beneficial effects of the utility model:

[0021] In the present application, the furnace body includes an upper furnace body and a lower furnace body that are separately arranged. The split furnace body design facilitates installation, debugging, and placement of long rollers. The size of the heating chamber in the furnace body is larger than the size of the roller body of the long roller, so that there can be a gap between the long roller and the inner wall of the furnace body when the long roller is in the furnace body. After the long roller is installed, a certain axial margin is left to avoid the long roller being bent due to the position limit after being heated and stretched. A support wheel group is provided to support the long roller, and a power component is provided to drive the support wheel group to rotate so that the long roller is always in a rotating state during the three stages of heating, heat preservation, and cooling of the furnace body, so that the long roller is heated evenly while ensuring that the long roller will not be deformed due to gravity during the entire sintering process.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0025] Figure 2 It is a schematic structural diagram of the utility model from a top view;

[0026] Figure 3 It is a schematic structural diagram of the utility model from the side;

[0027] Figure 4 It is a schematic diagram of the structure of the utility model from the front;

[0028] Figure 5 It is a structural diagram of the docking portion of the utility model.

[0029] The reference numerals in the figure are: 1, upper furnace body; 2, lower furnace body; 3, power source; 4, roller; 5, driven sprocket; 6, driving wheel group; 7, lifting ring; 8, cushion layer; 9, docking part. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0033] See also Figure 1-5The utility model is a long roller sintering furnace, comprising an upper furnace body 1, a lower furnace body 2, a supporting wheel group and a power component, etc. Among them, a placement opening for cooperating with the upper furnace body 1 is opened on one side of the lower furnace body 2. The placement opening can be opened at the upper end of the lower furnace body 2 so that the furnace body can be arranged up and down. The placement opening can also be opened on the side of the lower furnace body 2 so that the lower furnace body 2 and the upper furnace body 1 are arranged horizontally and cooperate. In the present application, the placement opening is opened at the upper end of the lower furnace body 2. The upper furnace body 1 and the lower furnace body 2 are enclosed to form a closed heating chamber, and a heat element for heating and heating the space in the heating chamber is provided in the heating chamber; the heat element may include a plurality of heating wires, and the heating wires are provided on the bottom wall of the lower furnace body 2 and on both side walls in the length direction (axis / length direction of the long roller). The length of the heating chamber is greater than that of the traction roller, so that there can be a gap between the long roller and the inner wall of the furnace body when the long roller is in the furnace body. After the long roller is installed, a certain axial margin is left to avoid the situation where the long roller is limited after being heated and stretched, causing the long roller to be bent.

[0034] See also Figure 1-4 In one embodiment of the present invention, a corresponding support wheel group is provided at each end of the lower furnace body 2, and the support wheel groups at both ends are used to support the shaft of the long roller and drive the long roller to always be in a rotating state. Specifically, in the support wheel groups at both ends of the long roller shaft, one end is the driving end, which cooperates with the power source 3, and the other end can be the driven end, and both ends play a supporting role together. Each of the support wheel groups includes two rollers 4 arranged in parallel and spaced apart, and the rollers 4 are rotatably arranged on the outer wall of the lower furnace body 2; specifically, a positioning shaft is fixedly provided on the lower furnace body 2 to ensure the stability of the rollers 4, and the rollers 4 are sleeved on the positioning shaft, and a bearing is provided between the two to reduce the resistance of the rollers 4 to rotation. The two groups of support wheel groups located at both ends of the lower furnace body 2 can support the two ends of the long roller shaft so that the long roller remains in a horizontal state.

[0035] See also Figure 1-4 In one embodiment of the present invention, the power assembly is used to drive two rollers 4 in the same group to rotate in the same direction. The axis of the long shaft is located on the two rollers 4 in the same group, in contact with the two rollers 4, and the long roller is driven to rotate by the same-direction rotation of the two rollers 4. The power assembly may include multiple power sources 3 and drive corresponding rollers 4 respectively. In this application, as an example, the power assembly includes a power source 3 and a driving wheel arranged on the output shaft of the power source 3, and a driven sprocket 5 ( Figure 1 、 2 , 3 is not shown, please refer to Figure 4), the driving wheel and the driven sprocket 5 are connected by a chain (not shown in the figure). The power source 3 may include an electric motor or a gear reduction box. When in use, the driving wheel is driven by the power source 3, and then the corresponding driven sprocket 5 is driven to rotate and the roller 4 is driven to rotate by the driving wheel. The driven sprocket 5 and the roller 4 can be arranged in the same body and concentrically to ensure that the long roller shaft is stably stressed on the roller 4. The power assembly may also include a transmission wheel group 6, which can be rotatably arranged on the lower furnace body 2. The transmission wheel group 6 includes at least two coaxially arranged transmission wheels, one transmission wheel and the driving wheel are connected by a chain (not shown in the figure), and the other transmission wheel and the two driven sprockets 5 are connected by a chain. Chain transmission can also be replaced by belt transmission or the like. In the present application, a relatively more stable sprocket transmission is preferred to ensure that the roller 4 used to support the long roller shaft can rotate stably.

[0036] See also Figure 1-4 In one embodiment of the present utility model, a plurality of lifting rings 7 are fixedly provided on the upper furnace body 1. The lifting rings 7 are provided on the upper furnace body to facilitate the lifting operation of the vehicle, driving the upper furnace body 1 to move up and down. A plurality of positioning pins can be fixedly provided on one end of the lower furnace body 2 for cooperating with the upper furnace body 1, and a positioning hole for cooperating with the positioning pin is provided on the upper furnace body 1. By providing the positioning pins and the positioning holes to cooperate with each other, it is ensured that the upper furnace body 1 can be installed and matched in place during each lifting and installation process to cooperate with the lower furnace body 2 to ensure the sealing of the entire furnace body and the sealing of the sintering furnace during the sintering process. A plurality of exhaust holes can be provided on the upper furnace body 1, and the exhaust holes are filled with plugs. The plugs can be high-temperature resistant cotton. The exhaust holes can be used to discharge water vapor during the sintering temperature rise stage. During the heat preservation stage, high-temperature resistant cotton can be used as a plug to seal the exhaust holes to reduce the temperature loss of the furnace body.

[0037] See also Figure 5 In one embodiment of the present invention, a cushion layer 8 can be provided at the position where the lower furnace body 2 and the upper furnace body 1 cooperate to ensure the sealing after the two are docked. The cushion layer 8 can be made of high-temperature resistant cotton material or other flexible heat-resistant material. A docking portion 9 can be provided at the position where the lower furnace body 2 and the upper furnace body 1 are docked. The docking portion 9 can play a positioning role. The cushion layer 8 at the step surface position of the docking portion 9 can be tilted (such as Figure 5 ), which makes it easier to connect and ensure the sealing performance by extrusion deformation after connection.

[0038] The working principle of this utility model:

[0039] First, the upper furnace body 1 is hoisted and raised by a crane, and then the long roller to be processed is placed in the sintering furnace. The long roller shaft is set to rotate on the supporting wheel group. Specifically, an arc-shaped notch can be opened at the position where the upper furnace body 1 and the lower furnace body 2 are connected. After the connection, a through hole is formed for the long roller shaft to extend out. Alternatively, a notch in the upper and lower directions can be opened on the side wall of the lower furnace body 2, and then a filling block is set. The lower end of the filling block is provided with an arc structure that connects with the lower end of the notch to form a through hole for the long roller shaft to extend out. The filling block can be fixedly connected to the upper furnace body 1 to facilitate up and down movement. After the long roller is placed, the roller 4 is driven to rotate by the power component. The two rollers 4 in the same group rotate in the same direction and then drive the long roller shaft on it to rotate, so that the long roller is always in a rotating state during the three stages of heating, heat preservation and cooling of the furnace body, so that the long roller is heated evenly while ensuring that the long roller will not be deformed due to gravity during the entire sintering process.

[0040] The above describes an embodiment of the present invention in detail. However, the above description is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A long roller sintering furnace, characterized in that: include: Upper furnace body (1); A lower furnace body (2), one side of the lower furnace body (2) is provided with a placement opening for cooperating with the upper furnace body (1), the upper furnace body (1) and the lower furnace body (2) enclose a closed heating chamber, the length of the heating chamber is greater than the length of the traction roller, and a thermal element for heating is provided in the heating chamber; A supporting wheel group, each of the supporting wheel groups comprises two rollers (4) arranged at intervals, and the rollers (4) are rotatably arranged on the outer wall of the lower furnace body (2); A power assembly is provided, wherein the power assembly is used to drive two rollers (4) in the same group to rotate synchronously in the same direction.

2. The long roller sintering furnace according to claim 1, characterized in that: A lifting ring (7) is fixedly provided on the upper furnace body (1).

3. The long roller sintering furnace according to claim 1, characterized in that: An exhaust hole is provided on the upper furnace body (1), and a plug is filled in the exhaust hole.

4. The long roller sintering furnace according to claim 1, characterized in that: A plurality of positioning pins are fixedly provided on one end of the lower furnace body (2) for cooperating with the upper furnace body (1), and positioning holes for cooperating with the positioning pins are provided on the upper furnace body (1).

5. The long roller sintering furnace according to claim 1, characterized in that: The thermal element comprises a plurality of heating wires, and the heating wires are arranged on the bottom wall and two side walls in the length direction of the lower furnace body (2).

6. The long roller sintering furnace according to claim 1, characterized in that: A positioning shaft is fixedly provided on the lower furnace body (2), and the roller (4) is sleeved on the positioning shaft, with a bearing provided between the two.

7. The long roller sintering furnace according to claim 6, characterized in that: The power assembly comprises a power source (3) and a driving wheel arranged on the output shaft of the power source (3); a driven sprocket (5) is coaxially arranged on the roller (4); and the driving wheel and the driven sprocket (5) are connected via a chain transmission.

8. The long roller sintering furnace according to claim 7, characterized in that: The power assembly further comprises a transmission wheel set (6), wherein the transmission wheel set (6) comprises at least two transmission wheels arranged coaxially, one transmission wheel being connected to the driving wheel via a chain transmission, and the other transmission wheel being connected to the two driven sprockets (5) via a chain transmission.

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