A tinplate sheet double-sided coating device

Abstract

The utility model discloses a kind of tinplate double-sided coating devices, the device includes base, vertical part, drive assembly, spraying assembly and auxiliary transmission roller etc., vertical part is set brush layer and is provided with arc slot, drive assembly and arc slot form guide groove by engagement, spraying assembly realizes double-sided synchronous spraying by distribution plate and spray head. It is driven tinplate transmission by the friction force of first, second brush roller in drive assembly, cooperate arc guide groove and limit deviation, auxiliary transmission roller guarantees transmission stable, solves the problems, such as traditional device process complex, coating uneven, transmission unstable. The device can realize double-sided synchronous spraying, improve coating efficiency and uniformity, ensure that double-sided coating thickness is consistent, applicable to industrialization production demand.

Description

Technical Field

[0001] This utility model relates to the field of tinplate sheet coating technology, and in particular to a double-sided tinplate sheet coating device. Background Technology

[0002] In the production and processing of tinplate sheets, double-sided coating is crucial for improving their corrosion resistance, aesthetics, and functionality. However, traditional double-sided coating equipment often uses a single-sided step-by-step coating method, which is complex and prone to inconsistent coating precision due to flipping. At the same time, spraying or roller coating structures make it difficult for the coating to adhere evenly to the surface of the moving sheet, often resulting in defects such as uneven coating thickness. In addition, the traditional equipment's transmission system relies on a single roller group drive, and the tinplate sheet is prone to warping or shifting during transmission due to uneven force. In particular, the lack of an arc-shaped guide structure causes the sheet to deviate from the predetermined path. Furthermore, the equipment has a complex structure, high maintenance costs, insufficient automation, and insufficient adaptability to different sheet specifications, making it difficult to meet the needs of high-efficiency coating in industrial production. Utility Model Content

[0003] The purpose of this invention is to provide a double-sided coating device for tinplate sheets, which solves the above-mentioned problems.

[0004] This utility model is achieved through the following technical solution:

[0005] A double-sided coating device for tinplate sheets includes a base, a vertical part installed on the side of the base, an arc-shaped groove opened on the side of the vertical part facing the base, a drive component that can fit with the arc-shaped groove is set at the base next to the vertical part, a horizontal plate parallel to the base is fixedly connected above the arc-shaped groove of the vertical part, an auxiliary drive roller and a spraying component are also set on the upper surface of the base, and an auxiliary drive roller is also installed on the lower surface of the horizontal plate.

[0006] Furthermore,

[0007] The vertical section has an arc-shaped groove in the middle, and a brush layer is provided on the surface of the arc-shaped groove.

[0008] Furthermore,

[0009] The drive assembly includes a first bracket, a first brush roller, a second brush roller, and a drive motor. The first bracket is vertically mounted on both sides of the base. The first brush roller is set between the upper ends of the first bracket and connected to the drive motor on the outer side of one side of the first bracket. The second brush roller is movably set below the first brush roller between the first brackets.

[0010] Furthermore,

[0011] The central axis of the first brush roller coincides with the central axis of the arc-shaped groove, and the first brush roller is partially located inside the arc-shaped groove. There is a gap between the first brush roller and the brush layer provided on the surface of the arc-shaped groove, forming a guide groove.

[0012] Furthermore,

[0013] The center of the side of the second brush roller and the center of the side of the first brush roller are on the same straight line, and the gap between the second brush roller and the first brush roller is aligned with the lower end of the guide groove.

[0014] Furthermore,

[0015] The spraying assembly includes a second bracket, a bottom sprayer, a first distribution plate, a nozzle, a bracket cross plate, an upper sprayer, and a second distribution plate. The second bracket is vertically mounted on both sides of the base. The bottom sprayer is located on the upper surface of the base where the second bracket is mounted. The first distribution plate is positioned above the bottom sprayer and below the gap formed by the first and second brush rollers, between the second brackets. The first distribution plate and the bottom sprayer are connected by a connecting pipe. A bracket cross plate parallel to the base is positioned on the top of the second bracket. The upper sprayer is positioned above the bracket cross plate. The second distribution plate is positioned below the bracket cross plate and above the gap between the second and first brush rollers, between the second brackets. The second distribution plate and the upper sprayer are connected by a connecting pipe passing through the bracket cross plate. Nozzles are mounted on the opposite surfaces of the second and first distribution plates.

[0016] Furthermore,

[0017] The first and second distribution plates have connecting holes for connecting pipes on the opposite side where the nozzles are installed, and the first and second distribution plates have flow channels for connecting each nozzle.

[0018] Furthermore,

[0019] The auxiliary drive rollers are mounted on the base surface and the lower surface of the transverse plate respectively via mounting brackets perpendicular to the base. The center of the cross-section of the auxiliary drive roller mounted on the base surface is on the same horizontal line as the center of the cross-section of the second brush roller, and the height of the mounting bracket is higher than that of the auxiliary drive roller. The upper end of the auxiliary drive roller mounted on the lower surface of the transverse plate is aligned with the upper outlet of the guide groove.

[0020] The beneficial effects of this utility model are:

[0021] 1. Improved transmission stability and coating uniformity: The tinplate sheet is driven by the friction between the first and second brush rollers in the drive assembly. Combined with the guide groove formed by the arc groove and the brush layer, not only is automatic transmission of the sheet material achieved, but the brush layer can also be used to assist in the application of coating during the transmission process, making the coating more uniform. At the same time, the arc trajectory restricts the deviation of the sheet material and ensures the stability of the coating trajectory.

[0022] 2. Double-sided synchronous spraying improves efficiency and consistency: The spraying assembly uses a bottom sprayer and an upper sprayer to distribute the paint to the upper and lower nozzles via the first and second distribution plates. Double-sided synchronous spraying is achieved during the tinplate transfer process, avoiding the complexity and flipping deviation of the traditional single-sided step-by-step coating process. This improves coating efficiency while ensuring uniform coating thickness on both sides.

[0023] 3. Auxiliary transmission structure ensures smooth transmission: The auxiliary transmission rollers on the base surface and the lower surface of the transverse plate are aligned with the second brush roller and the guide groove outlet, respectively, to assist in supporting and guiding the plate and prevent warping or offset during transmission. Together with the drive component and guide groove, they form a complete transmission path to ensure the smooth movement of the tinplate sheet and further improve the coating quality. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0027] The attached diagram shows the markings and corresponding component names:

[0028] 1-Base, 2-Vertical section, 20-Arc groove, 21-Brush layer, 3-Drive assembly, 30-First bracket, 31-First brush roller, 32-Second brush roller, 33-Drive motor, 4-Guide groove, 5-Spraying assembly, 50-Second bracket, 51-Bottom sprayer, 52-First distribution plate, 53-Spray nozzle, 54-Bracket horizontal plate, 55-Upper sprayer, 56-Second distribution plate, 57-Connecting pipe, 6-Horizontal plate, 7-Auxiliary transmission roller, 70-Mounting bracket, 8-Tinplate sheet. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0030] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are 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.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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. Example

[0032] See Figures 1 to 2 :

[0033] A double-sided coating device for tinplate sheets includes a base 1. A vertical part 2 is installed on the side of the base 1. An arc-shaped groove 20 is opened on the side of the vertical part 2 facing the base 1. A drive component 3 that can fit with the arc-shaped groove 20 is set at the base 1 next to the vertical part 2. A horizontal plate 6 parallel to the base 1 is fixedly connected above the arc-shaped groove 20 of the vertical part 2. An auxiliary drive roller 7 and a spraying component 5 are also set on the upper surface of the base 1. An auxiliary drive roller 7 is also installed on the lower surface of the horizontal plate 6.

[0034] Furthermore,

[0035] The vertical part 2 has an arc-shaped groove 20 in the middle, and a brush layer 21 is provided on the surface of the arc-shaped groove 20.

[0036] The arc-shaped groove 20 provides an arc-shaped guide path for the transmission of the tinplate sheet 8, which allows the tinplate sheet 8 to move stably along the arc-shaped trajectory during transmission; the brush layer 21 on the surface can assist in applying paint when the tinplate sheet 8 passes through, making the paint distribution more uniform. The brush layer 21 can be fixed by pasting or bolting.

[0037] Furthermore,

[0038] The drive assembly 3 includes a first bracket 30, a first brush roller 31, a second brush roller 32, and a drive motor 33. The first bracket 30 is vertically mounted on both sides of the base 1. The first brush roller 31 is arranged between the upper ends of the first bracket 30 and connected to the drive motor 33 on the outer side of one side of the first bracket 30. The second brush roller 32 is movably arranged below the first brush roller 31 between the first brackets 30.

[0039] The drive motor 33 drives the first brush roller 31 to rotate. The gap formed by the first brush roller 31 and the second brush roller 32 serves as the entrance for the tinplate sheet 8. When the tinplate sheet 8 passes through the gap, the friction of the two brush rollers drives it to move towards the lower part of the guide groove 4, thereby realizing the automatic transmission of the tinplate sheet 8 and providing stable conveying power for subsequent coating.

[0040] In one embodiment, a first bracket 30 is vertically mounted on both sides of the base 1, a first brush roller 31 is mounted between the upper ends of the first bracket 30, a drive motor 33 is fixed on the outer side of one side of the first bracket 30 and connected to the first brush roller 31, and a second brush roller 32 is set below the first brush roller 31 between the first brackets 30 by a movable connection such as a bearing.

[0041] Furthermore,

[0042] The central axis of the first brush roller 31 coincides with the central axis of the arc groove 20, and part of the first brush roller 31 is located inside the arc groove 20. There is a gap between the first brush roller 31 and the brush layer 21 provided on the surface of the arc groove 20, forming a guide groove 4.

[0043] The guide groove 4 formed by the first brush roller 31 and the arc-shaped groove 20 brush layer 21 has its lower end aligned with the gap between the two brush rollers, ensuring that the tinplate sheet 8 can accurately enter the lower part of the guide groove 4 after passing through the gap. The arc-shaped trajectory of the guide groove 4 can limit the offset of the tinplate sheet 8, allowing it to move along a predetermined path and providing a stable transfer track for double-sided coating.

[0044] Furthermore,

[0045] The center of the side of the second brush roller 32 and the center of the side of the first brush roller 31 are on the same straight line, and the gap between the second brush roller 32 and the first brush roller 31 is aligned with the lower end of the guide groove 4.

[0046] The two brush rollers have their sides aligned with each other and their gap is aligned with the bottom end of the guide groove 4. This allows the tinplate sheet 8 to seamlessly enter the bottom of the guide groove 4 after passing through the gap, avoiding jamming or offset during transmission. This ensures that the tinplate sheet 8 moves continuously along the path of "gap → bottom of guide groove 4", improving the smoothness of the coating process.

[0047] Furthermore,

[0048] The spraying assembly 5 includes a second bracket 50, a bottom sprayer 51, a first distribution plate 52, a nozzle 53, a bracket crossbar 54, an upper sprayer 55, and a second distribution plate 56. The second bracket 50 is vertically mounted on both sides of the base 1. The bottom sprayer 51 is disposed on the upper surface of the base 1 where the second bracket 50 is mounted. The first distribution plate 52 is disposed above the bottom sprayer 51 and below the gap formed by the first brush roller 31 and the second brush roller 32, between the second bracket 50 and the first distribution plate 52. Machine 51 is connected by connecting pipe 57. A support plate 54 parallel to the base 1 is provided on the top of the second support 50. An upper spraying machine 55 is provided above the support plate 54. A second distribution plate 56 is provided between the second supports 50 below the support plate 54 and above the gap between the second brush roller 32 and the first brush roller 31. The second distribution plate 56 and the upper spraying machine 55 are connected by connecting pipe 57 passing through the support plate 54. Spray nozzles 53 are installed on the opposite surfaces of the second distribution plate 56 and the first distribution plate 52.

[0049] The bottom sprayer 51 and the upper sprayer 55 convey the paint to the nozzle 53 through the first distribution plate 52 and the second distribution plate 56. As the tinplate sheet 8 passes through the gap between the two brush rollers and enters the lower part of the guide groove 4, the upper and lower nozzles 53 simultaneously spray the tinplate sheet 8 on both sides, ensuring that the paint adheres evenly during the movement and improving the efficiency and consistency of double-sided coating.

[0050] Furthermore,

[0051] The first distribution plate 52 and the second distribution plate 56 have connecting holes for connecting pipes 57 on the opposite side where the nozzles 53 are installed, and the first distribution plate 52 and the second distribution plate 56 have flow channels for connecting each nozzle 53.

[0052] The connecting pipe 57 and the flow channel allow the paint to enter the distribution plate from the sprayer through the connecting pipe 57, and then be evenly distributed to each nozzle 53 through the internal flow channel. This ensures that the nozzle 53 can spray an equal amount of paint through the sprayer when the tinplate sheet 8 passes through the gap between the two brush rollers and enters the lower part of the guide groove 4, thus avoiding differences in coating quality due to uneven paint distribution.

[0053] Furthermore,

[0054] The auxiliary drive roller 7 is mounted on the surface of the base 1 and the lower surface of the transverse plate 6 respectively by a mounting bracket 70 perpendicular to the base 1. The center of the cross section of the auxiliary drive roller 7 mounted on the surface of the base 1 is on the same horizontal line as the center of the cross section of the second brush roller 32, and the height of the mounting bracket 70 is higher than that of the auxiliary drive roller 7. The upper end of the auxiliary drive roller 7 mounted on the lower surface of the transverse plate 6 is aligned with the upper outlet of the guide groove 4.

[0055] The auxiliary transmission roller 7 on the surface of the base 1 is horizontally aligned with the center of the second brush roller 32, which can assist in supporting and conveying the tinplate 8 when it passes through the gap between the two brush rollers; the auxiliary transmission roller 7 on the lower surface of the transverse plate 6 is aligned with the upper outlet of the guide groove 4, which can guide the tinplate 8 to smoothly enter the guide groove 4. The two work together to ensure that the tinplate 8 remains stable during the transmission process from the gap to the lower part of the guide groove 4, preventing warping or deviation.

[0056] The method of using this utility model is as follows:

[0057] In use, the tinplate sheet 8 is first inserted into the gap between the first brush roller 31 and the second brush roller 32 of the drive assembly 3. The drive motor 33 drives the first brush roller 31 to rotate, and the friction between the two brush rollers and the tinplate sheet 8 drives it to move towards the lower part of the guide groove 4. During this process, the bottom sprayer 51 and the upper sprayer 55 respectively transport the paint to the first distribution plate 52 and the second distribution plate 56 through the connecting pipe 57. After being diverted by the internal flow channel, the paint is simultaneously sprayed onto the upper and lower surfaces of the tinplate sheet 8 by the nozzles 53 on opposite sides. When the tinplate sheet 8 enters the guide groove 4 formed by the first brush roller 31 and the brush layer 21 of the arc groove 20, the arc trajectory restricts its deviation, and the brush layer 21 assists in the application, making the paint distribution more uniform. The auxiliary transmission roller 7 on the surface of the base 1 is horizontally aligned with the center of the second brush roller 32 to assist in the transmission of the tinplate sheet 8. The auxiliary transmission roller 7 on the lower surface of the transverse plate 6 is aligned with the upper outlet of the guide groove 4 to guide it smoothly into the guide groove 4. Finally, the tinplate sheet 8 moves smoothly along the path of "gap → guide groove 4 → auxiliary transmission roller 7" to complete the double-sided coating.

[0058] This utility model achieves automatic transmission of tinplate sheet 8 through the friction of drive component 3, realizes double-sided synchronous spraying through the distribution plate and nozzle 53 structure of spraying component 5, ensures stable coating trajectory through the cooperation of arc guide groove 4 and brush layer 21, and maintains the smoothness of the transmission process with the help of auxiliary transmission roller 7, thereby efficiently completing the double-sided uniform coating of tinplate sheet 8.

[0059] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

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