Drying box for coating machine
Through the design of the ‘V’ shape drying box and exhaust system, the problem of evaporation retention in the drying box of the coater is solved, and the efficient drying and environmental protection performance are improved to ensure drying uniformity.
Patent Information
- Application Number
- CN202421679393.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-16
AI Technical Summary
In the drying box for existing coating machines, the evaporated water vapor and coating are prone to retention, resulting in poor drying efficiency and effect, and excessive humidity affects the drying process.
The ‘V’-shaped drying box structure is adopted, combined with the exhaust box and the exhaust fan, to form negative pressure and symmetric hot air flow, extend the drying path and quickly bring out steam and paint, and use oil-absorbing cotton to absorb the paint in the hot air to reduce air pollution.
It improves drying efficiency and effect, prevents paint from retention, improves environmental protection performance, ensures moderate humidity in the drying box, and enhances drying uniformity.
Smart Images
Figure CN223056027U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drying ovens, and particularly relates to a drying oven for a coating machine. Background Art
[0002] The coating machine is mainly used for the surface coating process production of substrates such as films and papers. It coats a roll of substrate with a specific functional glue, coating, ink, etc., and after drying, it is cut into pieces or wound up. The coating drying process is a key link in the coating process. The purpose is to evaporate the solvent in the slurry or coating coated on the substrate through hot air or other means, and dry the solute, so as to form a qualified electrode material with pores and consolidate it on the surface of the substrate.
[0003] In order to ensure the smooth progress of the coating drying process, it is usually necessary to control the environmental temperature and humidity to ensure that the temperature of the drying oven is moderate and the internal temperature is uniform. Specifically, at the beginning of drying, the evaporation mainly occurs on the surface of the coating. As the drying process progresses, the evaporation zone gradually expands to the inside of the coating and the base paper. At the same time, heat is transferred to the inside of the coating and the base paper through the boundary layer until no more free steam rises from the inside of the coating and the base paper to the surface and evaporates into the air. However, for the existing drying ovens for coating machines on the market at present, the feeding ports and discharging ports are generally at the same horizontal height. This structural method, although convenient for the drying and conveying of the coating base paper, the water vapor evaporated and the coating materials such as glue, coating, or ink evaporated during the drying process are likely to stay in the drying oven, resulting in too high humidity in the drying oven, affecting the drying efficiency and drying effect. In view of this, this application proposes a drying oven for a coating machine. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a drying oven for a coating machine, which adopts a drying box body with a "V" - shaped structure, extends the drying path of the base paper within a limited length space, and at the same time has high drying efficiency and good drying effect.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A drying oven for a coating machine, including a drying box body, the drying box body is set as a "V" - shaped structure, the bottom of the bending part of the drying box body is communicated with an exhaust box, the inner top walls at both ends of the drying box body are installed with a first guiding roller, the inner top wall at the bending part of the drying box body is installed with a second guiding roller, heating nets are arranged at both openings of the drying box body, and an exhaust fan is installed in the exhaust box.
[0006] Preferably, a partition board is horizontally fixed inside the opening end of the drying box body, the heating net is installed between the partition board and the inner bottom wall of the opening end of the drying box body, and the partition board is located at a position slightly above the middle of the first guiding roller.
[0007] Preferably, two layers of protective nets are arranged in the exhaust air box, and the exhaust fan is installed between the two layers of protective nets.
[0008] Preferably, air guide plates are horizontally fixed on both inner side walls of the exhaust air box. The two air guide plates are distributed in a staggered manner. A plurality of support plates are fixed on the opposite surfaces of the two air guide plates. The support plates are inclined towards one side, and oil-absorbing cotton is arranged on the downward inclined surfaces of the support plates.
[0009] Preferably, a triangular fixing plate is fixed on the inclined lower surface of the drying box body, and a support column is vertically fixed at the bottom of the triangular fixing plate.
[0010] Preferably, a movable cover plate is arranged on the inclined upper surface of the drying box body. The bottom end of the movable cover plate is hinged to the drying box body. A convex plate that abuts against the outer wall of the drying box is arranged at the top end of the movable cover plate. A threaded column is fixed near the convex plate. A pressing plate is movably sleeved on the threaded column, and a nut for pushing against the pressing plate is threadedly sleeved on the threaded column.
[0011] Preferably, a rubber ball is connected near the bottom end of the movable cover plate. A spacer plate is vertically fixed on the outer top wall at the bent part of the drying box body. Rubber sleeves that are suitably sleeved with the rubber ball are arranged on the tops of both sides of the spacer plate.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] Through the setting of the "V"-shaped drying box body of the present utility model, the original paper after coating passes through from the top of the first guide roller at one end of the drying box body and then bypasses the lower part of the second guide roller, and passes out from above the first guide roller at the other end of the drying box body. Thus, the original paper follows the drying box body and is transmitted in a "V" shape. During this process, the exhaust fan in the exhaust air box is started to generate negative pressure in the drying box body. The outside air enters the drying box body after being heated by the heating net at both ends of the drying box body. Thus, a symmetrical hot air flow is formed between both ends of the drying box body and the bottom end in the middle of the drying box body. In a limited length space, the drying path of the original paper is extended. At the same time, the hot air blows parallel to the coating surface of the original paper from top to bottom, and can quickly take out the steam generated by drying and heating and the coating materials such as evaporated glue, coating or ink, etc. It not only improves the drying efficiency, but also can prevent the phenomenon that the evaporated glue, coating or ink and other coating materials stay in the drying box body and affect the coating effect, thereby improving the drying effect. In addition, when the hot air is discharged from the exhaust air box, it passes through between a pair of air guide plates and a plurality of support plates. While extending the hot air path, the oil-absorbing cotton is used to adsorb and remove as much as possible the evaporated glue, coating or ink and other coating materials entrained in the hot air, reducing the pollution to the air and improving the environmental protection performance.
[0014] Of course, it is not necessary for any product implementing the present utility model to achieve all the above advantages simultaneously. Description of the Drawings
[0015] Figure 1 is the overall structural schematic diagram of the present utility model;
[0016] Figure 2 is the internal structural schematic diagram of the drying box body of the present utility model;
[0017] Figure 3 is the end structural schematic diagram of the drying box body of the present utility model;
[0018] Figure 4 is the bending part structural schematic diagram of the drying box body of the present utility model;
[0019] Figure 5 is the structural schematic diagram of the air guide plate of the present utility model.
[0020] In the figure: 1. Drying box body; 2. Exhaust air box; 3. Movable cover plate; 4. Triangular fixing plate; 5. Support column; 6. Spacer plate; 7. First guide roller; 8. Second guide roller; 9. Partition plate; 10. Heating mesh; 11. Convex plate; 12. Threaded column; 13. Pressing plate; 14. Nut; 15. Rubber ball; 16. Rubber sleeve; 17. Air guide plate; 18. Exhaust fan; 19. Protective net; 20. Support plate; 21. Oil-absorbing cotton. Specific embodiments
[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. The following will introduce each embodiment of the present utility model in detail with reference to the drawings.
[0022] Embodiment
[0023] Please refer to Figures 1 to 5, the present utility model preferably provides a technical solution: a drying oven for a coater, including a drying box body 1. The drying box body 1 is set in a "V" - shaped structure. The bottom of the bent part of the drying box body 1 is communicated with an exhaust air box 2. On the inner top walls at both ends of the drying box body 1, a first guiding roller 7 is installed. On the inner top wall at the bent part of the drying box body 1, a second guiding roller 8 is installed. Heating nets 10 are arranged at both open ends of the drying box body 1. An exhaust fan 18 is installed in the exhaust air box 2. Through this special structural form, the base paper passes through from above the first guiding roller 7 at one end of the drying box body 1, then bypasses below the second guiding roller 8, and passes out from above the first guiding roller 7 at the other end of the drying box body 1. The coated surface of the base paper faces downwards. Thus, the base paper follows the "V" - shaped transmission of the drying box body 1. Start the exhaust fan 18 in the exhaust air box 2 to generate negative pressure in the drying box body 1. The outside air enters the drying box body 1 after being heated by the heating nets 10 at both ends of the drying box body 1. Thus, a symmetrical hot air flow is formed from both ends of the drying box body 1 to the bottom end in the middle of the drying box body 1. In a limited length space, the drying path of the base paper is extended. At the same time, the hot air blows parallel to the coated surface of the base paper from top to bottom, which can quickly take out the steam generated by drying and heating, as well as the evaporated glue, coating, ink and other coating materials, not only improving the drying efficiency, but also preventing the phenomenon that the evaporated glue, coating, ink and other coating materials stay in the drying box body 1 and affect the coating effect, and improving the drying effect.
[0024] As a preferred implementation manner of this embodiment, a partition plate 9 is horizontally fixed inside the open end of the drying box body 1. The heating net 10 is installed between the partition plate 9 and the inner bottom wall of the open end of the drying box body 1. The partition plate 9 is located at a position slightly above the middle of the first guiding roller 7. The partition plate 9 is used to partition the open end of the drying box body 1 to ensure that the hot air blows from below the base paper. Two layers of protective nets 19 are arranged in the exhaust air box 2. The exhaust fan 18 is installed between the two layers of protective nets 19 to protect the exhaust fan 18.
[0025] As a preferred implementation manner of this embodiment, air guiding plates 17 are horizontally fixed on both inner side walls of the exhaust air box 2. The two air guiding plates 17 are distributed in a staggered manner. On the opposite sides of the two air guiding plates 17, a plurality of support plates 20 are fixed. The support plates 20 are inclined towards one side. Absorbent cotton 21 is arranged on the downward inclined surface of the support plates 20. Through this structural form, when the hot air discharges from the exhaust air box 2, it passes through between a pair of air guiding plates 17 and a plurality of support plates 20. While extending the hot air path, the absorbent cotton 21 is used to adsorb and remove as much as possible the evaporated glue, coating, ink and other coating materials entrained in the hot air, reducing the pollution to the air.
[0026] As a preferred embodiment of this embodiment, a triangular fixing plate 4 is fixed on the lower inclined surface of the drying box body 1, and a support column 5 is vertically fixed at the bottom of the triangular fixing plate 4 for supporting and installing the drying box body 1. An activity cover plate 3 is arranged on the upper inclined surface of the drying box body 1. The bottom end of the activity cover plate 3 is hinged to the drying box body 1. A convex plate 11 abutting against the outer wall of the drying box body 1 is arranged at the top end of the activity cover plate 3. A threaded column 12 is fixed near the convex plate 11. A pressing plate 13 is movably sleeved on the threaded column 12, and a nut 14 for pushing against the pressing plate 13 is threadedly sleeved on the threaded column 12. When the pressing plate 13 is aligned with the convex plate 11 and then the nut 14 is screwed to push the pressing plate 13 to abut against the convex plate 11, the activity cover plate 3 can be tightly abutted and closed. When the nut 14 is loosened and the pressing plate 13 is rotated to be misaligned with the convex plate 11, the activity cover plate 3 can be opened for the internal dispensing operation of the drying box body 1. A rubber ball 15 is connected near the bottom end of the activity cover plate 3. A spacer plate 6 is vertically fixed on the outer top wall at the bent part of the drying box body 1. Rubber sleeves 16 which are adaptively sleeved with the rubber ball 15 are arranged at the tops of both sides of the spacer plate 6. After the activity cover plate 3 is opened, the activity cover plate 3 is rotated to make the rubber ball 15 embedded in the rubber sleeve 16, so as to assist in positioning the activity cover plate 3 and facilitate the operation.
[0027] During use, the coated base paper passes through from above the first guide roller 7 at one end of the drying box body 1 and then bypasses below the second guide roller 8, and passes out from above the first guide roller 7 at the other end of the drying box body 1. The coated surface of the base paper faces downward. Thus, the base paper follows the drying box body 1 and is transmitted in a "V" shape. During this process, the exhaust fan 18 in the exhaust air box 2 is started to generate negative pressure in the drying box body 1. The outside air enters the drying box body 1 after being heated by the heating mesh 10 at both ends of the drying box body 1. Thus, a symmetrical hot air flow is formed between both ends of the drying box body 1 and the bottom end in the middle of the drying box body 1. In a limited length space, the drying path of the base paper is extended. At the same time, the hot air blows parallel to the coated surface of the base paper from top to bottom, and can quickly take out the steam generated by drying and heating and the coating materials such as evaporated glue, coating or ink from the drying box body 1. This not only improves the drying efficiency, but also prevents the phenomenon that the evaporated glue, coating or ink and other coating materials stay in the drying box body 1 and affect the coating effect, thereby improving the drying effect. When the hot air is discharged from the exhaust air box 2, it passes through between a pair of air guide plates 17 and multiple support plates 20. While extending the hot air path, the oil absorption cotton 21 is used to adsorb and remove as much as possible the evaporated glue, coating or ink and other coating materials entrained in the hot air, reduce the pollution to the air and improve the environmental protection performance.
[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. Among them, there are various ways of detachable installation. For example, it can be by means of cooperation between plugging and buckling, or by means of bolt connection, etc.
[0029] The above combines the embodiments and the drawings to clearly and completely describe the concept, specific structure and technical effects of the present utility model, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model. In addition, all the connection / linkage relationships mentioned in the text do not refer only to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation.
[0030] The specific description of the present utility model in the above embodiments is only used to further illustrate the present utility model and cannot be understood as a limitation on the protection scope of the present utility model. Any non-essential improvements and adjustments made by those skilled in the art according to the content of the above utility model shall fall within the protection scope of the present utility model.
Claims
1. A drying oven for a coating machine, comprising a drying box body (1), characterized in that: The drying box body (1) is arranged in a "V" - shaped structure. The bottom of the bending part of the drying box body (1) is communicated with an exhaust air box (2). On the inner top walls at both ends of the drying box body (1), a first guide roller (7) is installed. On the inner top wall at the bending part of the drying box body (1), a second guide roller (8) is installed. Heating grids (10) are arranged at both openings of the drying box body (1). An exhaust fan (18) is installed in the exhaust air box (2).
2. The drying oven for a coating machine according to claim 1, wherein: A partition plate (9) is horizontally fixed inside the open end of the drying box body (1). The heating grid (10) is installed between the partition plate (9) and the inner bottom wall of the open end of the drying box body (1). The partition plate (9) is located at a position slightly above the middle of the first guide roller (7).
3. A drying oven for a coating machine according to claim 1, characterized in that: Two layers of protective nets (19) are arranged in the exhaust air box (2). The exhaust fan (18) is installed between the two layers of protective nets (19).
4. The drying oven for a coating machine according to claim 1, characterized in that: On the inner side walls of both sides of the exhaust air box (2), air guiding plates (17) are horizontally fixed. The two air guiding plates (17) are distributed in a staggered manner. On the opposite sides of the two air guiding plates (17), a plurality of support plates (20) are fixed. The support plates (20) are inclined towards one side. Absorbent cotton (21) is arranged on the downward inclined surface of the support plates (20).
5. The drying oven for a coating machine according to claim 1, characterized in that: A triangular fixing plate (4) is fixed on the lower inclined surface of the drying box body (1). A support column (5) is vertically fixed at the bottom of the triangular fixing plate (4).
6. The drying oven for a coater according to claim 1, characterized in that: An activity cover plate (3) is arranged on the upper inclined surface of the drying box body (1). The bottom end of the activity cover plate (3) is hinged to the drying box body (1). A convex plate (11) which abuts against the outer wall of the drying box body (1) is arranged at the top end of the activity cover plate (3). A threaded column (12) is fixed near the convex plate (11). A pressing plate (13) is movably sleeved on the threaded column (12). A nut (14) for pushing against the pressing plate (13) is threadedly sleeved on the threaded column (12).
7. The drying oven for a coater according to claim 6, wherein: A rubber ball (15) is connected near the bottom end of the activity cover plate (3). A spacer plate (6) is vertically fixed on the outer top wall at the bending part of the drying box body (1). Rubber sleeves (16) which are adaptively sleeved with the rubber ball (15) are arranged at the tops of both sides of the spacer plate (6).