A diaphragm coater of a double-layer oven
Patent Information
- Application Number
- CN202522351813.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-05
AI Technical Summary
[0003]上述现有技术方案存在以下缺陷:单层长机架带来大跨距与累积热应力,膜带易起皱、边浪,段间驱动不同步会放大张力波动并引入横向厚度条纹,为获得足够有效干燥长度,单层烘箱需较长风管与机台,占地大、热损失高、启停与换型升降温慢
[0019]1.通过第一烘箱组和第二烘箱组的设置,能够起到节省空间提高生产效率的效果;
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Figure CN224778514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating machine technology, and in particular to a diaphragm coating machine for a double-layer oven. Background Technology
[0002] With increasing demands for high safety and long lifespan in both power batteries and energy storage batteries, forming functional coatings on the surface of polyolefin-based separators has become the mainstream approach. A typical mass production process includes: base film unwinding → tensioning and web guiding → coating → segmented drying → cooling and setting → online inspection → rewinding. The drying process needs to efficiently remove water / organic solvents and achieve coating densification and stable adhesion without causing thermal shrinkage, wrinkles, or pore structure collapse.
[0003] The above-mentioned existing technical solutions have the following drawbacks: a single-layer long frame leads to a large span and accumulated thermal stress; the membrane belt is prone to wrinkling and edge waviness; asynchronous driving between sections will amplify tension fluctuations and introduce transverse thickness stripes; in order to obtain a sufficiently effective drying length, a single-layer oven requires a long air duct and machine, which occupies a large area, has high heat loss, and is slow to start, stop, and change the temperature. Utility Model Content
[0004] The purpose of this invention is to provide a diaphragm coating machine for a double-layer oven to solve the problems existing in the prior art.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A diaphragm coating machine for a double-layer oven includes a base. Multiple first columns are evenly arranged on the top of the base. A common mounting plate is fixedly installed on the top of each first column. Multiple second columns are evenly arranged on the top of the mounting plate. A common first oven group is fixedly installed on the top of each second column. A second oven group is fixedly installed on the top of the first oven group. The first and second oven groups are interconnected. Multiple first circular holes are provided on the top of the second oven group. A first circular annular protrusion is fixedly installed on the top of each first circular hole. The first circular annular protrusion is collinear with the axis of the first circular hole and communicates with the second oven group. A hot air furnace is fixedly installed on the right side of the top of the mounting plate. Multiple air ducts are fixedly installed on the left side of the hot air furnace. The other end of each air duct is fixedly installed with a first circular annular protrusion. Each air duct corresponds to a first circular annular protrusion. A ladder is fixedly installed on the left side of the mounting plate, facilitating maintenance of the first and second oven groups.
[0007] By adopting the above technical solution, a second drying oven group is fixedly installed on top of the first drying oven group through a reasonable support structure, forming a double-layer drying structure, which effectively saves equipment floor space and improves drying efficiency. The internal structure of the second drying oven group corresponds to that of the first drying oven group, and it is also equipped with multiple second drying ovens in the same number as the first drying ovens. Each second drying oven also has a conveyor roller with its axis arranged in the front-to-back direction rotatably installed at its bottom, so that the diaphragm can undergo different stages or different process requirements drying treatments in the upper and lower drying ovens respectively.
[0008] In a further embodiment, the first oven group consists of a plurality of first ovens, which are interconnected. A conveyor roller is fixedly installed at the bottom of the first oven, and a temperature sensor is fixedly installed at the top inner part of the first oven. The second oven group consists of a plurality of second ovens, which are interconnected. A conveyor roller is fixedly installed at the bottom of the second oven, and a temperature sensor is fixedly installed at the top inner part of the second oven.
[0009] By adopting the above technical solution, real-time and accurate monitoring of the internal temperature of each oven can be achieved, ensuring timely understanding of the temperature status of each independent processing space, and providing the most direct and reliable basis for subsequent temperature control.
[0010] In a further embodiment, an automatic alignment machine is fixedly installed on both the left and right sides of the first oven assembly. The automatic alignment machine is used to prevent the diaphragm from shifting laterally.
[0011] By adopting the above technical solution, stable power can be provided to ensure that the material is conveyed forward at a constant speed and tension, laying the foundation for the accuracy of subsequent processing and effectively preventing problems such as material deviation, wrinkles or uneven stretching during the transmission process.
[0012] In a further embodiment, the inlet of the first oven group is located at the left end of the first oven group, and the outlet of the first oven group is located at the right end of the first oven group; the inlet of the second oven group is located at the right end of the second oven group, and the outlet of the second oven group is located at the left end of the second oven group.
[0013] By adopting the above technical solution, operators can perform feeding and discharging operations at both ends of the oven, avoiding mutual interference that may occur when operating on the same side, and reserving a more reasonable working space for operation.
[0014] In a further embodiment, the inlet of the first oven group and the outlet of the second oven group are vertically aligned, and the outlet of the first oven group and the inlet of the second oven group are vertically aligned.
[0015] By adopting the above technical solution, the material transfer path between the two sets of drying ovens can be greatly shortened. This saves floor space in the production workshop, makes the equipment layout more compact, and improves space utilization.
[0016] In a further embodiment, a first coating machine is fixedly installed at the top left end of the base, and a second coating machine is fixedly installed at the top right end of the base. The first and second coating machines are used to coat the diaphragm. An unwinding machine is fixedly installed at the top center of the base. The unwinding machine is used to smoothly unwind the roll material to be processed. A winding machine is fixedly installed on the left side of the base. The winding machine is used to wind the processed material into a roll.
[0017] By adopting the above technical solution, the winding machine is used to wind the processed materials into rolls, which can effectively save storage space and allow the materials to be placed in an orderly manner in a limited space; it facilitates subsequent transportation and handling, and reduces the risk of damage to the materials during the transfer process; at the same time, the rolled materials are conducive to the continuous operation of subsequent processing steps, improving production efficiency; it can also avoid problems such as wrinkles and contamination of materials during storage, ensuring the stability of material quality.
[0018] In summary, this utility model has the following beneficial effects:
[0019] 1. By setting up the first and second drying oven groups, space can be saved and production efficiency can be improved;
[0020] 2. By setting up an automatic alignment machine, it is possible to avoid the amplification of tension fluctuations and the introduction of transverse thickness stripes caused by asynchronous driving between membrane segments;
[0021] 3. By setting up the hot air furnace, air ducts, and temperature sensors, more precise temperature control can be achieved. Attached Figure Description
[0022] Figure 1 This is an overall schematic diagram of the present invention, used to illustrate the connection relationship between the first drying oven group and the second drying oven group.
[0023] In the diagram, 1. Base; 2. First column; 3. Mounting plate; 4. Second column; 5. First drying oven assembly; 6. Second drying oven assembly; 7. First circular protrusion; 8. Hot air furnace; 9. Air duct; 10. Ladder; 11. First drying oven; 12. Conveyor roller; 13. Temperature sensor; 14. Second drying oven; 15. Automatic alignment machine; 16. First coating machine; 17. Second coating machine; 18. Unwinding machine; 19. Rewinding machine. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to the accompanying drawings.
[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.
[0026] Example 1:
[0027] like Figure 1 As shown, a diaphragm coating machine for a double-layer oven includes a base 1. Multiple first columns 2 are evenly arranged on the top of the base 1. A mounting plate 3 is fixedly installed on the top of each first column 2. Multiple second columns 4 are evenly arranged on the top of the mounting plate 3. A first oven group 5 is fixedly installed on the top of each second column 4. A second oven group 6 is fixedly installed on the top of the first oven group 5. The first oven group 5 and the second oven group 6 are interconnected. Multiple first circular holes are provided on the top of the second oven group 6. Each hole has a first circular protrusion 7 fixedly installed on its top. The first circular protrusion 7 is collinear with the axis of the first circular hole and is connected to the second oven group 6. A hot air furnace 8 is fixedly installed on the top right side of the mounting plate 3. Multiple air ducts 9 are fixedly installed on the left side of the hot air furnace 8. The other end of the air duct 9 is fixedly installed with the first circular protrusion 7. The air duct 9 corresponds one-to-one with the first circular protrusion 7. A ladder 10 is fixedly installed on the left side of the mounting plate 3. The ladder 10 facilitates the maintenance of the first oven group 5 and the second oven group 6.
[0028] The first oven group 5 consists of multiple first ovens 11, which are interconnected. A conveyor roller 12 is fixedly installed at the bottom of the first oven 11, and a temperature sensor 13 is fixedly installed at the top inside the first oven 11. The second oven group 6 consists of multiple second ovens 14, which are interconnected. A conveyor roller 12 is fixedly installed at the bottom of the second oven 14, and a temperature sensor 13 is fixedly installed at the top inside the second oven 14.
[0029] Automatic alignment machines 15 are fixedly installed on both the left and right sides of the first oven group 5. The automatic alignment machines 15 are used to prevent the diaphragm from shifting laterally. The feed inlet of the first oven group 5 is located at the left end of the first oven group 5, and the discharge outlet of the first oven group 5 is located at the right end of the first oven group 5. The feed inlet of the second oven group 6 is located at the right end of the second oven group 6, and the discharge outlet of the second oven group 6 is located at the left end of the second oven group 6. The feed inlet of the first oven group 5 and the discharge outlet of the second oven group 6 are vertically aligned. The discharge outlet of the first oven group 5 and the feed inlet of the second oven group 6 are vertically aligned.
[0030] A first coating machine 16 is fixedly installed at the top left end of the base 1, and a second coating machine 17 is fixedly installed at the top right end of the base 1. The first coating machine 16 and the second coating machine 17 are used to coat the diaphragm. An unwinding machine 18 is fixedly installed at the top center of the base 1. The unwinding machine 18 is used to smoothly unwind the roll material to be processed. A winding machine 19 is fixedly installed on the left side of the base 1. The winding machine 19 is used to wind the processed material into a roll.
[0031] Specific implementation process: The hot air furnace 8 is turned on, and the first drying oven group 5 and the second drying oven group 6 are preheated through the air duct 9. The diaphragm to be processed is placed on the unwinding machine 18, coated by the first coating machine 16, and then corrected by the automatic correction machine 15 on the left. It then enters the drying oven through the feed port of the first drying oven group 5. The conveying roller 12 at the bottom of the drying oven conveys the diaphragm out of the discharge port of the first drying oven group 5 and enters the second coating machine 17 again. After the second coating is completed, it is corrected by the automatic correction machine 15 on the right and enters the second drying oven group 6. The conveyor 12 at the bottom of the drying oven conveys the diaphragm out of the discharge port of the second drying oven group 6. The diaphragm output from the discharge port is then wound into a roll by the winding machine 19.
[0032] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.
[0033] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A diaphragm coating machine for a double-layer oven, comprising a base (1), characterized in that: The base (1) has a plurality of first columns (2) evenly arranged on its top. The same mounting plate (3) is fixedly installed on the top of the first columns (2). The mounting plate (3) has a plurality of second columns (4) evenly arranged on its top. The same first oven group (5) is fixedly installed on the top of the second columns (4). The first oven group (5) has a second oven group (6) fixedly installed on its top. The first oven group (5) and the second oven group (6) are interconnected. The top of the second oven group (6) has a plurality of first circular holes. The top of each of the first circular holes is fixedly installed with a first annular protrusion. The first annular protrusion (7) is collinear with the axis of the first circular hole. The first annular protrusion (7) is connected to the second oven group (6). A hot air furnace (8) is fixedly installed on the top right side of the mounting plate (3). Multiple air ducts (9) are fixedly installed on the left side of the hot air furnace (8). The other end of the air duct (9) is fixedly installed with the first annular protrusion (7). The air ducts (9) correspond one-to-one with the first annular protrusion (7). A ladder (10) is fixedly installed on the left side of the mounting plate (3). The ladder (10) facilitates the maintenance of the first oven group (5) and the second oven group (6).
2. The diaphragm coating machine for a double-layer oven according to claim 1, characterized in that: The first oven group (5) consists of multiple first ovens (11), which are interconnected. A conveyor roller (12) is fixedly installed at the bottom of the first oven (11), and a temperature sensor (13) is fixedly installed at the top inside the first oven (11). The second oven group (6) consists of multiple second ovens (14), which are interconnected. A conveyor roller (12) is fixedly installed at the bottom of the second oven (14), and a temperature sensor (13) is fixedly installed at the top inside the second oven (14).
3. The diaphragm coating machine for a double-layer oven according to claim 1, characterized in that: Automatic alignment machines (15) are fixedly installed on both the left and right sides of the first oven group (5). The automatic alignment machines (15) are used to prevent the diaphragm from shifting laterally.
4. The diaphragm coating machine for a double-layer oven according to claim 1, characterized in that: The feed inlet of the first oven group (5) is located at the left end of the first oven group (5), the discharge outlet of the first oven group (5) is located at the right end of the first oven group (5), the feed inlet of the second oven group (6) is located at the right end of the second oven group (6), and the discharge outlet of the second oven group (6) is located at the left end of the second oven group (6).
5. A diaphragm coating machine for a double-layer oven according to claim 4, characterized in that: The inlet of the first oven group (5) is aligned vertically with the outlet of the second oven group (6), and the outlet of the first oven group (5) is aligned vertically with the inlet of the second oven group (6).
6. The diaphragm coating machine for a double-layer oven according to claim 1, characterized in that: A first coating machine (16) is fixedly installed on the top left end of the base (1), and a second coating machine (17) is fixedly installed on the top right end of the base (1). The first coating machine (16) and the second coating machine (17) are used to coat the diaphragm. An unwinding machine (18) is fixedly installed at the top center of the base (1). The unwinding machine (18) is used to smoothly unwind the roll material to be processed. A winding machine (19) is fixedly installed on the left side of the base (1). The winding machine (19) is used to wind the processed material into a roll.