Roller coating device

Abstract

The utility model discloses a roll coating device, which belongs to the technical field of roll coating equipment, and comprises a rack, a roll coating assembly and a conveying assembly, the roll coating assembly comprises a first coating roller and a second coating roller which are arranged up and down, and the first coating roller and the second coating roller are both rotatably connected with the rack; a single-side roller coating space is formed between the lower end of the second coating roller or the upper end of the first coating roller and the rack, and a double-side roller coating space is formed between the first coating roller and the second coating roller; the conveying assembly is used for conveying the workpieces to the single-face roll coating space or the double-face roll coating space, switching of single-face roll coating and double-face roll coating can be achieved, and limitation on plate conveying can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of roller coating equipment technology, and in particular to a roller coating device. Background Technology

[0002] Before brazing, the plate needs to be coated with flux. The function of flux is to remove oxides from the surface of the plate and the brazing filler metal, protect the plate and the filler metal, reduce oxidation during heating, and improve the wetting ability of the filler metal on the plate.

[0003] In related technologies, most roller coating equipment for boards can only achieve single-sided or double-sided coating, and cannot switch between single-sided and double-sided roller coating according to actual needs, which also imposes significant limitations on the conveying of boards. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a roller coating device that can switch between single-sided and double-sided roller coating, and can reduce the limitations on the conveying of the sheet material.

[0005] The roller coating apparatus according to an embodiment of the present invention includes: a frame; a roller coating assembly including a first coating roller and a second coating roller arranged vertically, both the first coating roller and the second coating roller being rotatably connected to the frame, a single-sided roller coating space being constructed between the lower end of the second coating roller or the upper end of the first coating roller and the frame, and a double-sided roller coating space being constructed between the first coating roller and the second coating roller; and a conveying assembly for conveying workpieces to the single-sided roller coating space or the double-sided roller coating space.

[0006] The roller coating apparatus according to the embodiments of this utility model has at least the following beneficial effects: the roller coating assembly includes a first coating roller and a second coating roller arranged vertically, and a single-sided roller coating space is constructed between the lower end of the second coating roller or the upper end of the first coating roller and the frame, while a double-sided roller coating space is constructed between the first coating roller and the second coating roller, that is, the single-sided roller coating space and the double-sided roller coating space are located at different heights. The conveying assembly is used to convey the workpiece to the single-sided roller coating space or the double-sided roller coating space. When single-sided roller coating of the workpiece is required, an automatic conveying mechanism can be used to allow the workpiece to automatically pass through the single-sided roller coating space. Through the contact between the workpiece and the first coating roller or the second coating roller, the flux is applied to the workpiece on one side, which can improve the efficiency of the coating process. Regarding the efficiency and effect of roller coating, when double-sided roller coating is required, the conveying assembly can assist in guiding the workpiece into the double-sided roller coating space, so that the two end faces of the sheet metal abut against the first coating roller and the second coating roller respectively, thereby achieving double-sided coating of the workpiece with flux. That is, the roller coating device allows users to freely choose to switch between single-sided and double-sided roller coating to meet different usage requirements. In single-sided roller coating, the single-sided roller coating of the workpiece can be achieved through the single-sided roller coating space formed by one of the first and second coating rollers and the machine frame. This eliminates the influence of the other of the first and second coating rollers on the workpiece conveying, reduces the limitations on sheet metal conveying, and helps to improve the roller coating efficiency and effect of the workpiece.

[0007] According to some embodiments of the present invention, the roller coating device further includes a lifting driver, which is connected to the first coating roller or the second coating roller to drive the first coating roller or the second coating roller to move up and down.

[0008] To ensure applicability to products of different specifications and to guarantee contact between the workpiece and the first coating roller and / or the second coating roller, the roller coating apparatus also includes a lifting drive connected to the first or second coating roller to drive the first or second coating roller to rise or fall, thereby adjusting the size of the single-sided or double-sided roller coating space to adapt the single-sided or double-sided roller coating space to products of different specifications.

[0009] According to some embodiments of the present invention, the conveying assembly includes a linear driver and a support plate. The support plate is used to carry the workpiece, and the linear driver is connected to the frame and is used to drive the support plate in and out of the single-sided roller coating space.

[0010] To achieve automated feeding of the sheet metal and improve the efficiency and effect of roller coating, the roller coating device also includes a linear drive and a support plate. The linear drive is connected to the frame, while the support plate is used to support the workpiece. That is, the user can place the workpiece to be roller coated on the support plate. The linear drive is connected to the support plate to drive the support plate in and out of the single-sided roller coating space to achieve automated feeding of the sheet metal. This helps to reduce roller coating defects caused by human factors and improves the efficiency and effect of roller coating flux on the workpiece.

[0011] According to some embodiments of the present invention, the conveying assembly further includes a roller conveyor frame, which includes a first frame and a plurality of first conveying rollers arranged in a row. The plurality of first conveying rollers are rotatably connected to the first frame and together form a first conveying surface. The first conveying surface is used to convey the workpiece into the double-sided roller coating space.

[0012] Specifically, the conveying assembly also includes a roller conveyor frame, which includes a first frame and a plurality of first conveying rollers arranged in a row. The plurality of first conveying rollers are rotatably connected to the first frame and together form a first conveying surface. When double-sided roller coating is required on the workpiece, the user can place the workpiece on the first conveying surface so that the workpiece abuts against the plurality of first conveying rollers. Through the rotatable connection between the first conveying rollers and the first frame, the workpiece can be smoothly conveyed into the double-sided roller coating space. Through the abutment of the workpiece against the first coating roller and the second coating roller, the flux is applied to the workpiece on both sides. The setting of the roller conveyor frame can assist in conveying the workpiece to the double-sided roller coating space to improve the roller coating efficiency and roller coating effect.

[0013] According to some embodiments of the present invention, the conveying assembly further includes a carrier plate connected to the upper end of a linear driver, the linear driver being used to drive the carrier plate to move linearly back and forth, and the carrier plate being configured to be connected to a support plate and / or a roller conveyor frame.

[0014] The roller coating device also includes a carrier plate, which is connected to the upper end of a linear drive. The linear drive can drive the carrier plate to move linearly back and forth. The carrier plate is configured to be connected to a support plate and / or a roller conveyor frame. That is, according to the processing requirements of the workpiece, the user can choose to connect the support plate or the roller conveyor frame to the carrier plate to achieve single-sided or double-sided roller coating of the material.

[0015] According to some embodiments of this utility model, guide rods are respectively connected to both ends of the first frame along the length direction of the first conveying roller, and the guide rods are used to limit the lateral displacement of the workpiece; and / or,

[0016] The lower end of the frame is equipped with a slide rail, and the linear drive is slidably connected to the slide rail.

[0017] Optionally, guide rods are connected to both ends of the first frame along the length of the first conveying roller. When the workpiece is placed on the first conveying surface, the side of the workpiece can abut against the guide rod. By limiting the mutual positioning of the workpiece and the guide rod, the lateral displacement of the workpiece is restricted, which helps to ensure that the workpiece is conveyed in a straight line into the double-sided roller coating space, thereby improving the roller coating effect of the workpiece. Optionally, a slide rail is provided at the lower end of the frame. The linear drive is slidably connected to the slide rail. By guiding the linear drive through the slide rail, the straightness of the workpiece conveying can be improved, thereby improving the roller coating effect of the workpiece.

[0018] According to some embodiments of the present invention, the roller coating device further includes a circular belt conveyor located on one side of the double-sided roller coating space outlet. The circular belt conveyor includes a second frame, a plurality of second conveyor rollers, a plurality of circular belts, and a rotary driver. The plurality of second conveyor rollers are rotatably connected to the second frame and are arranged at intervals along the conveying direction of the workpiece. The plurality of circular belts are arranged at intervals along the length direction of the second conveyor rollers and are wound between the plurality of second conveyor rollers. The rotary driver is used to drive the second conveyor rollers to rotate.

[0019] To assist in the conveying of workpieces after they pass through the double-sided roller coating space, the roller coating device also includes a circular belt conveyor mechanism located on one side of the exit of the double-sided roller coating space. The circular belt conveyor mechanism includes a second frame, multiple second conveyor rollers, multiple circular belts, and a rotary driver. The multiple second conveyor rollers are rotatably connected to the second frame and are arranged at intervals along the conveying direction of the workpiece. The multiple circular belts are arranged at intervals along the length direction of the second conveyor rollers and are wound between the multiple second conveyor rollers. The multiple circular belts can be used to carry the workpieces that have passed through the double-sided roller coating space. The rotary driver is connected to the second conveyor rollers to drive the second conveyor rollers to rotate, thereby driving the circular belts to rotate. Through the contact between the circular belts and the workpieces, the conveying of the workpieces after they have passed through the double-sided roller coating space is assisted.

[0020] According to some embodiments of the present invention, the roller coating device further includes a pump body and multiple cleaners, each cleaner corresponding to a circular belt. Each cleaner has a through hole and a water inlet communicating with the through hole. The circular belt passes through the through hole, and the pump body is connected to the water inlet.

[0021] Considering that the conveyor belt will be contaminated with flux from the workpiece surface, and that excessive flux buildup on the conveyor belt after prolonged use is detrimental to improving the accuracy of workpiece conveying and can easily cause scratches on the workpiece surface, this roller coating device also includes a pump body and multiple cleaners. The cleaners are set up one-to-one with the conveyor belt, and the conveyor belt passes through the through holes of the cleaners. The water inlet of the cleaner is connected to the pump body. Under the pressure change of the pump body, the liquid used for cleaning can be passed through the water inlet and into the through hole. By rinsing the conveyor belt with the liquid, the flux contaminated on the conveyor belt can be effectively removed.

[0022] According to some embodiments of the present invention, the roller coating device further includes a water receiving tray located below the cleaner, the water receiving tray being used to collect the liquid after cleaning the roller.

[0023] Specifically, in order to achieve resource recycling, the roller coating device also includes a water receiving tray located below the cleaner. The cleaning fluid used to clean the circular strip can flow out from the through hole and be collected in the water receiving tray, thereby realizing the recycling of water resources and helping to reduce or avoid the problem of cleaning fluid splashing in all directions.

[0024] According to some embodiments of the present invention, the roller coating device further includes a magnetic coupling, a rotary drive connected to the frame, a second frame detachably connected to the frame, and both the rotary drive and the second conveying roller can be connected to the magnetic coupling.

[0025] Specifically, considering that the roller conveyor is suitable for double-sided roller coating, but when single-sided roller coating is required, the second frame can easily obstruct the conveying of the workpiece. The second frame of this roller coating device is detachably connected to the frame. In order to simplify the assembly process of the roller conveyor, the roller coating device also includes a magnetic coupling. When the second frame is connected to the frame, the transmission connection between the rotary drive and the second conveyor roller can be realized through the magnetic coupling, which helps to simplify the assembly and disassembly of the roller conveyor and reduce the labor intensity of the user.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a schematic diagram of the structure of a roller coating device (equipped with a roller conveyor frame and a circular belt conveyor mechanism) according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of a roller coating device (with the roller conveyor frame and the circular belt conveyor mechanism removed) according to an embodiment of the present invention;

[0030] Figure 3 for Figure 1 Another perspective structural schematic diagram of the roller coating device shown in the image;

[0031] Figure 4 This is a schematic diagram of the conveying assembly of a roller coating device according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the circular belt conveyor mechanism of a roller coating device according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the cleaning device of a roller coating apparatus according to an embodiment of the present invention.

[0034] Icon labels:

[0035] 100. Frame; 110. Slide rail;

[0036] 200, Roller coating assembly; 210, First coating roller; 220, Second coating roller; 230, Single-sided roller coating space; 240, Double-sided roller coating space;

[0037] 300, Conveying assembly; 310, Linear drive; 320, Support plate; 330, Roller conveyor frame; 331, First conveying roller; 332, Guide rod; 340, Carrier plate;

[0038] 400. Lifting drive;

[0039] 500, Circular belt conveyor mechanism; 510, Second frame; 520, Second conveyor roller; 530, Circular belt; 540, Washer; 541, Through hole; 542, Water inlet; 550, Water receiving tray;

[0040] 600. Magnetic coupling. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. 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.

[0043] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0044] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0045] Reference Figures 1 to 6 As shown, one embodiment of the roller coating apparatus of this utility model is suitable for single-sided or double-sided roller coating of workpieces such as sheet metal. The coating material can be flux, thereby realizing single-sided or double-sided roller coating of the workpiece with flux. The workpiece can be sheet metal, and it is suitable for production and manufacturing in the automotive field. Specifically, the roller coating apparatus includes: a frame 100, a roller coating assembly 200, and a conveying assembly 300.

[0046] Reference Figure 1 , Figure 2 and Figure 3 As shown, the frame 100 provides support for the roller coating assembly 200 and the conveying assembly 300. The roller coating assembly 200 includes a first coating roller 210 and a second coating roller 220 arranged vertically. The first coating roller 210 and the second coating roller 220 are parallel to each other and arranged vertically at intervals. Both the first coating roller 210 and the second coating roller 220 are rotatably connected to the frame 100.

[0047] Reference Figure 1 , Figure 2 and Figure 3 As shown, a single-sided coating space 230 is constructed between the lower end of the second coating roller 220 and the frame 100, and a double-sided coating space 240 is constructed between the first coating roller 210 and the second coating roller 220; that is, the single-sided coating space 230 and the double-sided coating space 240 are located at different heights, with the single-sided coating space 230 located below the double-sided coating space 240.

[0048] Reference Figure 1 , Figure 2 and Figure 3 As shown, the conveying assembly 300 is used to move the workpiece into the single-sided roller coating space 230. When the workpiece needs to be coated on one side, it can be used with the automatic conveying mechanism to make the workpiece automatically pass through the single-sided roller coating space 230. Through the contact between the workpiece and the second coating roller 220, the flux is coated on one side of the workpiece, which can improve the roller coating efficiency and effect.

[0049] Reference Figure 1 , Figure 2 and Figure 3 As shown, the conveying assembly 300 is used to move the workpiece into the double-sided roller coating space 240. When double-sided roller coating is required, the conveying assembly 300 can assist in moving the workpiece into the double-sided roller coating space 240, so that the two end faces of the plate abut against the first coating roller 210 and the second coating roller 220 respectively, thereby realizing the double-sided coating of the workpiece with flux.

[0050] Reference Figure 1 , Figure 2 and Figure 3 As shown, the roller coating device allows users to freely switch between single-sided and double-sided roller coating to meet the needs of different workpieces. In single-sided roller coating, the single-sided roller coating space 230 formed by the second coating roller 220 and the frame 100 can realize single-sided roller coating of the workpiece, which can eliminate the influence of the first coating roller 210 on the workpiece conveying and improve the roller coating efficiency and effect of the workpiece.

[0051] It should be understood that in some other embodiments, a single-sided coating space 230 is constructed between the upper end of the first coating roller 210 and the frame 100, and a double-sided coating space 240 is constructed between the first coating roller 210 and the second coating roller 220; that is, the single-sided coating space 230 and the double-sided coating space 240 are located at different heights, with the single-sided coating space 230 located above the double-sided coating space 240.

[0052] When single-sided roller coating is required, an automatic conveying mechanism can be used to allow the workpiece to automatically pass through the single-sided roller coating space 230. Through the contact between the workpiece and the first coating roller 210, the flux can be applied to the workpiece on one side, which can improve the roller coating efficiency and effect. It can also eliminate the influence of the second coating roller 220 on the workpiece conveying, which is conducive to improving the roller coating efficiency and effect of the workpiece.

[0053] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that in this embodiment, in order to meet the applicability of products of different specifications and ensure the contact between the workpiece and the first coating roller 210 or the second coating roller 220, the roller coating device also includes a lifting driver 400, which is connected to the first coating roller 210 or the second coating roller 220 to drive the first coating roller 210 or the second coating roller 220 to rise and fall.

[0054] Reference Figure 1 , Figure 2 and Figure 3 As shown, the lifting driver 400 is connected to the first coating roller 210 or the second coating roller 220 to drive the first coating roller 210 or the second coating roller 220 to lift and lower, thereby adjusting the size of the single-sided roller coating space 230 or the double-sided roller coating space 240 so that the single-sided roller coating space 230 or the double-sided roller coating space 240 can be adapted to products of different specifications.

[0055] Reference Figure 1 , Figure 2 and Figure 3As shown, specifically, the lifting drive 400 includes a first drive and a second drive. Both the first drive and the second drive are connected to the frame 100, and the first drive and the second drive are respectively connected to the first coating roller 210 and the second coating roller 220 to drive the first coating roller 210 and the second coating roller 220 to lift and lower independently, thereby controlling the size of the single-sided roller coating space 230 and the double-sided roller coating space 240, and helping to increase the adjustment range of the single-sided roller coating space 230 and the double-sided roller coating space 240.

[0056] Reference Figure 1 , Figure 2 and Figure 3 As shown, it should be noted that the lifting driver 400 can be a linear drive mechanism such as an electric push rod, a pneumatic push rod, a hydraulic push rod, a lead screw slider mechanism, or a crank connecting rod mechanism.

[0057] Reference Figure 1 , Figure 2 and Figure 4 As shown, it can be understood that in order to achieve automatic conveying of the sheet material and improve the efficiency and effect of the roll coating, the conveying assembly 300 includes a linear driver 310 and a support plate 320. The support plate 320 is used to carry the workpiece, and the linear driver 310 is connected to the frame 100. The linear driver 310 is used to drive the support plate 320 in and out of the single-sided roll coating space 230.

[0058] Reference Figure 1 , Figure 2 and Figure 4 As shown, the user can place the workpiece to be coated on the support plate 320. The linear driver 310 is connected to the support plate 320 to drive the support plate 320 in and out of the single-sided coating space 230, so as to realize the automatic conveying of the board. This helps to reduce coating defects caused by human factors and improves the efficiency and effect of coating flux on the workpiece.

[0059] Reference Figure 1 , Figure 2 and Figure 4 As shown, specifically, the support plate 320 can be customized according to the style of the workpiece. The support plate 320 can be provided with a positioning groove. By fitting the workpiece into the positioning groove, the support plate 320 and the workpiece can be positioned and connected.

[0060] Reference Figure 1 , Figure 2 and Figure 4 As shown, it should be noted that the linear actuator 310 can be an electric linear actuator, a pneumatic linear actuator, a hydraulic linear actuator, a lead screw and slider mechanism, a crank and connecting rod mechanism, or other linear drive mechanisms.

[0061] Reference Figure 1 , Figure 2 and Figure 4As shown, the conveying assembly 300 also includes a carrier plate 340, which is connected to the upper end of the linear driver 310. The linear driver 310 drives the carrier plate 340 to move linearly reciprocally. The carrier plate 340 is provided with a first positioning hole, and the support plate 320 is provided with a first positioning post. By engaging the first positioning post with the first positioning hole, the support plate 320 and the carrier plate 340 can be detachably connected, and the carrier plate 340 can serve as a support base for the support plate 320.

[0062] Reference Figure 1 , Figure 2 and Figure 4 As shown, when the user needs to replace different workpieces, the support plate 320 can be remade, and different support plates 320 and carrier plates 340 can be assembled by disassembling and combining the support plate 320 and the carrier plate 340, thereby improving the applicability to different types of workpieces.

[0063] Reference Figure 1 , Figure 2 and Figure 4 As shown, specifically, the linear actuator 310 includes a sliding block and a linear drive component. The lower end of the frame 100 is provided with a slide rail 110. The sliding block is slidably connected to the slide rail 110. The carrier plate 340 is connected to the upper end of the sliding block. The linear drive component is connected to the sliding block to drive the sliding block to move linearly back and forth along the slide rail 110. The slide rail 110 passes through the single-sided roller coating space 230. Under the driving action of the linear drive component, the carrier plate 340 can support the workpiece and pass through the single-sided roller coating space 230.

[0064] Reference Figure 1 , Figure 2 and Figure 4 As shown, a slide rail 110 is provided at the lower end of the frame 100. The linear driver 310 is slidably connected to the slide rail 110. By guiding the linear driver 310 through the slide rail 110, the straightness of the workpiece conveying can be improved, thereby improving the roller coating effect of the workpiece.

[0065] Reference Figure 1 , Figure 2 and Figure 4 As shown, it is understandable that, considering the position of the double-sided roller coating space 240 is higher than that of the single-sided roller coating space 230, and that the first coating roller 210 and the second coating roller 220 would obstruct the automatic conveying of the workpiece, in order to assist in the conveying of the workpiece to the double-sided roller coating space 240, the roller coating device also includes a roller conveyor frame 330. The roller conveyor frame 330 includes a first frame and a plurality of first conveyor rollers 331 arranged in a row. The plurality of first conveyor rollers 331 are rotatably connected to the first frame and together form a first conveying surface, which is used to convey the workpiece to the double-sided roller coating space 240.

[0066] Reference Figure 1, Figure 2 and Figure 4 As shown, the user can place the workpiece on the first conveying surface so that the workpiece abuts against multiple first conveying rollers 331. Through the rotational connection between the first conveying rollers 331 and the first frame, the workpiece can be smoothly conveyed into the double-sided roller coating space 240. Through the contact between the workpiece and the first coating roller 210 and the second coating roller 220, the flux is applied to the workpiece on both sides. The setting of the roller conveyor frame 330 can assist in conveying the workpiece to the double-sided roller coating space 240, so as to improve the roller coating efficiency and roller coating effect of the workpiece.

[0067] Reference Figure 1 , Figure 2 and Figure 4 As shown, it can be understood that the upper end of the carrier plate 340 is provided with a second positioning hole, and the lower end of the first frame is provided with a second positioning post. By connecting the second positioning post with the second positioning hole, the roller conveyor frame 330 and the carrier plate 340 can be detachably connected. That is, according to the processing requirements of the workpiece, the user can choose to connect the roller conveyor frame 330 to achieve double-sided roller coating of the board.

[0068] Reference Figure 1 , Figure 2 and Figure 4 As shown, it can be understood that guide rods 332 are connected to both ends of the first frame along the length of the first conveying roller 331. When the workpiece is placed on the first conveying surface, the side of the workpiece can abut against the guide rod 332. By limiting the mutual positioning of the workpiece and the guide rod 332, the lateral displacement of the workpiece is restricted, which helps to ensure that the workpiece is conveyed in a straight line into the double-sided roller coating space 240, thereby improving the roller coating effect of the workpiece.

[0069] Reference Figure 1 , Figure 5 and Figure 6 As shown, it can be understood that, in order to assist the conveying of the workpiece after it passes through the double-sided roller coating space 240, the roller coating device also includes a circular belt conveyor mechanism 500 located on the exit side of the double-sided roller coating space 240. The circular belt conveyor mechanism 500 includes a second frame 510, a plurality of second conveyor rollers 520, a plurality of circular belts 530 and a rotary driver. The plurality of second conveyor rollers 520 are rotatably connected to the second frame 510 and are arranged at intervals along the conveying direction of the workpiece. The plurality of circular belts 530 are arranged at intervals along the length direction of the second conveyor rollers 520 and are wound between the plurality of second conveyor rollers 520. The rotary driver is used to drive the second conveyor rollers 520 to rotate.

[0070] Reference Figure 1 , Figure 5 and Figure 6As shown, the upper surfaces of multiple circular belts 530 together constitute the second conveying surface. The height of the second conveying surface is adapted to the height of the first conveying surface, so as to receive the workpieces that pass through the double-sided roller coating space 240, thereby assisting in the conveying of the workpieces.

[0071] Understandably, in order to ensure the synchronous rotation of multiple second conveyor rollers 520, the second conveyor rollers 520 are provided with pulleys at their ends along their length. The roller coating device also includes a transmission belt, which is wound between multiple pulleys. The rotary drive can be a rotary motor. When the rotary motor drives one of the second conveyor rollers 520 to rotate, the pulleys abut against the transmission belt, thereby synchronously driving multiple second conveyor rollers 520 to rotate, so as to realize the rotation drive of multiple circular belts 530.

[0072] Reference Figure 1 , Figure 5 and Figure 6 As shown, it is understandable that in order to make the second conveying surface formed by multiple circular belts 530 more stable, the circular belt conveying mechanism 500 also includes support bars. The length direction of the support bars is consistent with the direction in which the workpiece passes through the double-sided roller coating space 240. Multiple support bars are arranged at intervals along the length direction of the second conveying roller 520. All support bars are connected to the second frame 510. Each support bar corresponds to a circular belt 530. The upper end of the support bar is provided with a groove, and part of the circular belt 530 is embedded in the groove. The support bars can support the circular belt 530, thereby avoiding the problem of decreased conveying accuracy caused by the circular belt 530 bending downward under pressure.

[0073] Reference Figure 1 , Figure 5 and Figure 6 As shown, it is understandable that, considering that the conveyor belt 530 will be contaminated with flux from the workpiece surface, after prolonged use, too much flux will accumulate on the conveyor belt 530, which is not conducive to improving the accuracy of workpiece conveying and is prone to scratching the workpiece surface. Therefore, the roller coating device also includes a pump body and multiple cleaners 540. The cleaners 540 are arranged one-to-one with the conveyor belt 530. The cleaners 540 are provided with through holes 541 and water inlets 542 that communicate with the through holes 541. The conveyor belt 530 passes through the through holes 541, and the pump body is connected to the water inlets 542.

[0074] Reference Figure 1 , Figure 5 and Figure 6 As shown, the circular strip 530 passes through the through hole 541 of the cleaner 540. The water inlet 542 of the cleaner 540 is connected to the pump body. Under the pressure change of the pump body, the liquid used for cleaning can pass through the water inlet 542 and into the through hole 541. Through the flushing of the liquid, the flux adhering to the circular strip 530 can be effectively removed.

[0075] It should be understood that in some other embodiments, the two sides facing away from the cleaner 540 are respectively provided with a water inlet 542 and a water outlet. The water outlet is opposite to the water inlet 542 and communicates with the through hole 541. The pump body can guide the cleaning liquid to the water inlet 542 through a hose, so that the cleaning liquid washes the circular belt 530. The cleaned liquid can flow out from the water outlet, which can play the role of water discharge and pressure relief.

[0076] Reference Figure 1 , Figure 5 and Figure 6 As shown, it is understood that in this embodiment, specifically, in order to achieve resource recycling, the roller coating device also includes a water receiving tray 550 located below the cleaner 540. The cleaning liquid used to clean the circular belt 530 can flow out from the through hole 541 and be collected in the water receiving tray 550, thereby achieving water resource recycling and helping to reduce or avoid the problem of cleaning liquid splashing around.

[0077] Reference Figure 1 , Figure 5 and Figure 6 As shown, it is understood that, specifically, considering that the roller conveyor 330 is suitable for double-sided roller coating, and when single-sided roller coating is required, the second frame 510 may obstruct the conveying of the workpiece. Therefore, the roller coating device also includes a magnetic coupling 600, a rotary drive connected to the frame 100, a second frame 510 detachably connected to the frame 100, and both the rotary drive and the second conveyor roller 520 can be connected to the magnetic coupling 600.

[0078] Reference Figure 1 , Figure 5 and Figure 6 As shown, in order to simplify the assembly process of the roller conveyor frame 330, the roller coating device also includes a magnetic coupling 600. When the second frame 510 is connected to the frame 100, the magnetic coupling 600 can realize the transmission connection between the rotary drive and the second conveying roller 520, which helps to simplify the assembly and disassembly of the roller conveyor frame 330 and reduce the labor intensity of the user.

[0079] The Magnetic Coupling 600 transmits torque through a magnetic field, eliminating the need for physical contact. This non-contact transmission method avoids the failures caused by mechanical wear in traditional couplings, thus extending the service life of the equipment. At the same time, the absence of mechanical contact also reduces vibration and noise.

[0080] The magnetic coupling 600 requires no lubrication, reducing the workload of equipment maintenance. At the same time, due to its simple structure, the maintenance cost is relatively low, making the magnetic coupling 600 more cost-effective in situations requiring frequent maintenance or replacement.

[0081] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A roller coating apparatus, characterized in that, include: Rack (100); The roller coating assembly (200) includes a first coating roller (210) and a second coating roller (220) arranged vertically. Both the first coating roller (210) and the second coating roller (220) are rotatably connected to the frame (100). A single-sided roller coating space (230) is constructed between the lower end of the second coating roller (220) or the upper end of the first coating roller (210) and the frame (100). A double-sided roller coating space (240) is constructed between the first coating roller (210) and the second coating roller (220). A conveying assembly (300) is used to convey a workpiece to the single-sided roller coating space (230) or the double-sided roller coating space (240).

2. The roller coating apparatus according to claim 1, characterized in that: It also includes a lifting drive (400) connected to the first coating roller (210) or the second coating roller (220) to drive the first coating roller (210) or the second coating roller (220) to rise or fall.

3. The roller coating apparatus according to claim 1, characterized in that: The conveying assembly (300) includes a linear driver (310) and a support plate (320), the support plate (320) being used to carry the workpiece, the linear driver (310) being connected to the frame (100), and the linear driver (310) being used to drive the support plate (320) in and out of the single-sided roller coating space (230).

4. The roller coating apparatus according to claim 3, characterized in that: The conveying assembly (300) further includes a roller conveyor frame (330), which includes a first frame and a plurality of first conveying rollers (331) arranged in a row. The plurality of first conveying rollers (331) are rotatably connected to the first frame and together form a first conveying surface. The first conveying surface is used to convey the workpiece to the double-sided roller coating space (240).

5. The roller coating apparatus according to claim 4, characterized in that: The conveying assembly (300) further includes a carrier plate (340) connected to the upper end of the linear driver (310), the linear driver (310) driving the carrier plate (340) to move linearly back and forth, the carrier plate (340) being configured to be connected to the support plate (320) and / or the roller conveyor frame (330).

6. The roller coating apparatus according to claim 4, characterized in that: Guide rods (332) are connected to both ends of the first frame along the length of the first conveying roller (331), and the guide rods (332) are used to limit the lateral displacement of the workpiece; and / or, The lower end of the frame (100) is provided with a slide rail (110), and the linear drive (310) is slidably connected to the slide rail (110).

7. The roller coating apparatus according to claim 1, characterized in that: It also includes a circular belt conveyor (500) located on the exit side of the double-sided roller coating space (240). The circular belt conveyor (500) includes a second frame (510), a plurality of second conveyor rollers (520), a plurality of circular belts (530) and a rotary driver. The plurality of second conveyor rollers (520) are rotatably connected to the second frame (510) and are arranged at intervals along the conveying direction of the workpiece. The plurality of circular belts (530) are arranged at intervals along the length direction of the second conveyor rollers (520). The circular belts (530) are wound between the plurality of second conveyor rollers (520). The rotary driver is used to drive the second conveyor rollers (520) to rotate.

8. The roller coating apparatus according to claim 7, characterized in that: It also includes a pump body and multiple cleaners (540), each cleaner (540) corresponding to the circular belt (530). Each cleaner (540) has a through hole (541) and a water inlet (542) communicating with the through hole (541). The circular belt (530) passes through the through hole (541), and the pump body is connected to the water inlet (542).

9. The roller coating apparatus according to claim 8, characterized in that: It also includes a water tray (550) located below the cleaner (540), the water tray (550) being used to collect the liquid after cleaning the circular belt (530).

10. The roller coating apparatus according to claim 7, characterized in that: It also includes a magnetic coupling (600), the rotary drive is connected to the frame (100), the second frame (510) is detachably connected to the frame (100), and both the rotary drive and the second conveying roller (520) can be connected to the magnetic coupling (600).

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