A double-sided coating primer machine

Abstract

The utility model discloses a double-sided coating primer, including a frame, a clamping and pressing traction mechanism, a first coating closed material box, a first coating gravure roller, a second coating closed material box, a second coating gravure roller, a reversing roller and a roller assembly; the clamping and pressing traction mechanism is arranged at the bottom of the frame, the first coating closed material box is connected to the first coating gravure roller, and the first coating closed material box is arranged in a vertical direction, the second coating closed material box is connected to the second coating gravure roller, and the second coating closed material box is arranged in a vertical direction, the reversing roller is arranged above the second coating closed material box, and the substrate passes through the clamping and pressing traction mechanism, the first coating gravure roller, the second coating gravure roller and the reversing roller in sequence when the substrate is walking. The utility model arranges the first coating and the second coating closed material boxes vertically to form a new substrate primer path, which is convenient for cleaning and maintenance of the primer machine, can improve production efficiency, and reduce production management costs.

Description

Technical Field

[0001] This utility model relates to the field of coating technology, specifically to a double-sided coating primer machine. Background Technology

[0002] The main function of a double-sided simultaneous primer coater is to form a uniform and firm coating on both sides of the substrate, filling in the tiny unevenness on the substrate surface to form a flat and smooth base surface, which is used to protect the substrate surface and improve the adhesion and durability of subsequent coatings, providing a good foundation for subsequent coating operations.

[0003] The structural layout of the enclosed cartridges in a double-sided simultaneous primer coating machine directly affects the efficiency and quality of the primer coating. Actual production trials have shown that vertical placement of the enclosed cartridges results in the most ideal coating quality. Conventional double-sided simultaneous primer coating machines have an enclosed cartridge for the first coat placed vertically and the enclosed cartridge for the second coat placed at an angle. These two different placement methods lead to poor primer coating results on both sides of the substrate, and also make installation, debugging, and maintenance of the machine inconvenient, hindering the observation of the coating process and impacting production efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a double-sided coating primer machine, in which the first and second coating closed material boxes are arranged vertically to form a new substrate primer path. The new primer path is easy to install and debug, and also easy to clean and maintain the primer machine, which can improve production efficiency and reduce production management costs.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A double-sided coating primer machine includes a frame and a clamping and traction mechanism, a first-coat closed material box, a first-coat gravure roller, a second-coat closed material box, a second-coat gravure roller, a reversing roller, and a roller conveyor assembly mounted on the frame. The clamping and traction mechanism is located at the bottom of the frame. The first-coat closed material box is connected to the first-coat gravure roller and is arranged vertically. The first-coat closed material box and the first-coat gravure roller are located above the clamping and traction mechanism. The second-coat closed material box is connected to the second-coat gravure roller and is arranged vertically. The second-coat closed material box and the second-coat gravure roller are located above the first-coat closed material box. The reversing roller is located above the second-coat closed material box. When the substrate is conveyed, it passes through the clamping and traction mechanism, the first-coat gravure roller, the second-coat gravure roller, and the reversing roller in sequence. The roller conveyor assembly is used to support the conveyor belt carrying the substrate.

[0007] As a further improvement to the above technical solution, a proximity roller is provided on the frame, which is used to drive the substrate into contact with the first coating gravure roller.

[0008] As a further improvement to the above technical solution, the reversing roller is an air-floating roller.

[0009] As a further improvement to the above technical solution, the roller assembly includes a first roller and a second roller, the first roller being disposed between the clamping and traction mechanism and the first coating gravure roller, and the second roller being disposed between the first coating gravure roller and the second coating roller.

[0010] As a further improvement to the above technical solution, the second passing roller is used to adjust the film wrap angle of the second coating gravure roller. The second passing roller includes a roller body and adjustment components disposed at both ends of the roller body. The adjustment components include a fixed seat, a movable seat, a guide structure and a drive structure. The fixed seat is installed on the frame. The movable seat is slidably connected to the fixed seat through the guide structure. The drive structure is used to drive the movable seat to move.

[0011] As a further improvement to the above technical solution, the driving structure includes a screw rotatably connected to a fixed base, and the movable base is provided with a threaded through hole, the screw being connected to the threaded through hole.

[0012] As a further improvement to the above technical solution, the two-coat closed material box includes a material box, a main shaft, a material box moving assembly, and a material tube. The material tube is connected to the material box and is used to transport the coating slurry to the material box. The material box is installed on the main shaft. A material box moving assembly is provided at both ends of the main shaft. The material box moving assembly is used to move the material box closer to or away from the two-coat gravure roller.

[0013] As a further improvement to the above technical solution, the material box moving assembly includes a linear guide rail and a cylinder. The slide rail in the linear guide rail is fixedly installed on the frame, the slider in the linear guide rail is connected to the end of the main shaft, and the cylinder is used to drive the main shaft to slide along the linear guide rail.

[0014] As a further improvement to the above technical solution, a handle is provided on the back side of the material box.

[0015] As a further improvement to the above technical solution, a receiving box is provided below the material box.

[0016] The beneficial effects of this invention are as follows: By changing the placement of the two enclosed material boxes in the double-sided simultaneous primer coating machine, and placing the second-coat enclosed material box vertically, the consistency of the double-sided primer coating on the substrate is enhanced, and the primer coating quality is improved. Simultaneously, a new substrate primer coating path is formed. This new path lowers the position of the second-coat enclosed material box, which then enters the drying oven via a reversing roller. This facilitates installation and debugging, as well as cleaning and maintenance of the mechanism. The opening and closing of the enclosed material box is also more convenient, which is beneficial for production, saves time and labor, improves production efficiency, and reduces production management costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the layout of a double-sided coating primer machine according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the second roller in a double-sided coating primer machine according to this utility model;

[0020] Figure 3 yes Figure 2 A schematic diagram of the structure of the adjustment component;

[0021] Figure 4 This is a schematic diagram of the structure of the enclosed material box for the second coating in a double-sided coating primer machine according to this utility model;

[0022] Figure 5 yes Figure 4 A schematic diagram of the moving component of the middle material box.

[0023] Reference numerals: 1. Frame; 2. Clamping and traction mechanism; 3. First pass roller; 4. First coating gravure roller; 5. First coating enclosed material box; 6. Approach roller; 7. Second pass roller; 71. Roller body; 72. Adjustment component; 721. Fixing plate; 722. First fixing block; 723. Second fixing block; 724. Moving seat; 725. Screw; 726. Guide rod; 727. Knob; 728. Connecting seat; 8. Second coating gravure roller; 9. Second coating enclosed material box; 91. Material box; 92. Material tube; 93. Main shaft; 94. Material box moving component; 941. Slide rail; 942. Slider; 943. Mounting seat; 944. Cylinder; 945. Cylinder mounting plate; 95. Receiving box; 96. Handle; 10. Reversing roller. Detailed Implementation

[0024] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / installations can use accessories such as screws and bolts, or can be directly connected by welding, bonding, etc. The various technical features in this utility model can be combined interactively without contradicting each other.

[0025] Reference Figure 1 This utility model provides a double-sided coating primer machine, including a frame 1 and a clamping and traction mechanism 2, a first-coat sealed material box 5, a first-coat gravure roller 4, a second-coat sealed material box 9, a second-coat gravure roller 8, a reversing roller 10, and a roller passing assembly mounted on the frame 1; the first-coat sealed material box 5 is connected to the first-coat gravure roller 4, and the first-coat sealed material box 5 is arranged vertically, the first-coat sealed material box 5 is used to provide coating slurry to the first-coat gravure roller 4, the first-coat gravure roller 4... Roller 4 is partially immersed in the first coating sealing box 5, transferring the slurry in the first coating sealing box 5 to one side of the substrate; the second coating sealing box 9 is connected to the second coating gravure roller 8, and the second coating sealing box 9 is arranged in a vertical direction. The second coating sealing box 9 is used to provide coating slurry to the second coating gravure roller 8. The second coating gravure roller 8 is partially immersed in the second coating sealing box 9, transferring the slurry in the second coating sealing box 9 to the other side of the substrate, thereby completing the double-sided coating of the substrate.

[0026] The clamping and traction mechanism 2 is located at the inner bottom of the frame 1. This clamping and traction mechanism 2 is existing technology, and its specific structure will not be described in this utility model. The first-coat sealed material box 5 and the first-coat gravure roller 4 are located above the clamping and traction mechanism 2. The second-coat sealed material box 9 and the second-coat gravure roller 8 are located above the first-coat sealed material box 5. The reversing roller 10 is located above the second-coat sealed material box 9. The roller passing assembly includes a first passing roller 3 and a second passing roller 7. The first passing roller 3 is located between the clamping and traction mechanism 2 and the first-coat gravure roller 4, and the second passing roller 7 is located between the first-coat gravure roller 4 and the second-coat roller.

[0027] As the substrate is conveyed, it sequentially passes through the clamping and traction mechanism 2, the first pass roller 3, the first coating gravure roller 4, the second pass roller 7, the second coating gravure roller 8, and the reversing roller 10. After completing the previous process, the substrate is pulled to the double-sided coating primer machine by the clamping and traction mechanism 2. After passing through the clamping and traction mechanism 2, the substrate forms a new tension section. The first pass roller 3 supports the substrate and changes its direction of travel. The substrate travels to the first coating gravure roller 4. Under the action of the approach roller 6, the substrate comes close to the first coating gravure roller 4. The first coating gravure roller 4 is partially immersed in the first coating closed material box 5, transferring the slurry in the first coating closed material box 5 to one side of the substrate. Then the substrate continues to travel, and the direction of travel is changed by the second pass roller 7. The substrate travels to the second coating gravure roller 8. The second coating gravure roller 8 is partially immersed in the second coating closed material box 9, transferring the slurry in the second coating closed material box 9 to the other side (uncoated side) of the substrate. The substrate that has completed the double-sided primer coating is reversed by the reversing roller 10 and enters the next process (oven baking).

[0028] In existing technologies, the conventional structural layout of double-sided coating primer machines places the second-coat enclosed material box 9 at an angle. This angled placement increases the overall height of the installation position, hindering operation and disassembly by workers, severely impacting daily maintenance, and significantly reducing coating production efficiency. This is unsuitable for factories aiming for high-efficiency primer production. Therefore, after the second coating, the material passes through the reversing roller 10 before entering the drying oven. At this point, the second coating position can be lower, facilitating installation, cleaning, inspection, maintenance, and observation.

[0029] In addition, it was found in actual production tests that the vertical placement of the sealed material box is the most ideal state for coating quality. Therefore, in this utility model, the first coating sealed material box 5 and the second coating sealed material box 9 are placed vertically to further improve the coating quality and improve the primer coating quality and efficiency of the double-sided simultaneous primer coating machine.

[0030] In actual production, when cleaning and maintaining the closed material box, it is necessary to push and move the closed material box horizontally and then flip it up so that the opening is not blocked by the gravure roller. By placing the closed material box vertically, the closed material box can achieve the action of horizontal movement and flipping with the use of a short-stroke cylinder 944, which effectively reduces the structural space layout and improves the economic efficiency of the product.

[0031] In this embodiment, refer to Figure 4 The second-coat sealed material box 9 includes a material box 91, a main shaft 93, a material box moving assembly 94, and a material tube 92. The material tube 92 is connected to the material box 91 and is used to transport the coating slurry into the material box 91. The material box 91 is mounted on the main shaft 93. A material box moving assembly 94 is provided at both ends of the main shaft 93. The material box moving assembly 94 is used to move the material box 91 closer to or further away from the second-coat gravure roller 8, so as to achieve a series of operations such as sealing contact between the material box 91 and the second-coat gravure roller 8 to achieve coating, and disassembly, cleaning, and maintenance after the material box 91 is separated from the second-coat gravure roller 8.

[0032] Specifically, refer to Figure 5 The material box moving assembly 94 includes a linear guide rail and a cylinder 944. The slide rail 941 in the linear guide rail is fixedly installed on the frame 1. The slider 942 in the linear guide rail is connected to the end of the main shaft 93 through a mounting base 943. The cylinder 944 is fixedly connected to the frame 1 through a cylinder mounting plate 945. The extended end of the cylinder 944 is connected to the mounting base 943. Under the action of the linear guide rail, when the cylinder 944 extends or retracts, it drives the mounting base 943 to move, which in turn drives the main shaft 93 to move, and thus drives the material box 91 to move. This adjusts the distance between the material box 91 and the second-coat gravure roller 8, so as to achieve sealed contact between the material box 91 and the second-coat gravure roller 8 and the coating material, as well as disassembly, cleaning and maintenance after separation.

[0033] Furthermore, a handle 96 is provided on the back side of the material box 91 to facilitate the operation of the material box 91. The handle 96 is located on the back side of the material box 91 to avoid interference between the material box 91 and the film conveyor when the material box 91 is placed vertically. A receiving box 95 is provided below the material box 91 to facilitate the collection of the slurry cleaned from the material box 91 during cleaning and maintenance.

[0034] In this embodiment, the second roller 7 is also used to adjust the film wrap angle of the second-coating gravure roller 8, as shown in the reference. Figure 2 and Figure 3 The second roller 7 includes a roller body 71 and adjustment components 72 disposed at both ends of the roller body 71. The adjustment components 72 include a fixed seat, a movable seat 724, a guide structure, and a drive structure. The fixed seat is mounted on the frame 1. The movable seat 724 is slidably connected to the fixed seat in the vertical direction through the guide structure. The end of the roller body 71 is fixedly connected to the movable seat 724 through a connecting seat 728. The drive structure is used to drive the movable seat 724 to move. When the movable seat 724 moves, it drives the roller body 71 to make a linear movement in the vertical direction, thereby adjusting the height of the roller body 71 to adjust the film wrap angle of the second coating gravure roller 8.

[0035] Specifically, the fixed base includes a fixed plate 721 and a first fixed block 722 and a second fixed block 723 fixedly connected to the fixed plate 721. The fixed plate 721 is fixedly installed to the frame 1. The guiding structure includes a guide rod 726, with both ends of the guide rod 726 fixedly connected to the first fixed block 722 and the second fixed block 723, respectively. The movable base 724 is slidably connected to the guide rod 726 via a linear bearing. The driving structure includes a screw 725 rotatably connected to the fixed base. The two ends of the screw 725 are rotatably connected to the first fixed block 722 and the second fixed block 723, respectively. The movable seat 724 is provided with a threaded through hole. The top end of the screw 725 passes through the first fixed block 722 and is connected to a knob 727. The knob 727 facilitates the operation of the rotation of the screw 725. The screw 725 is connected to the threaded through hole. Under the limit of the guide structure, when the screw 725 is rotated, the movable seat 724 moves up and down, thereby driving the roller body 71 to move up and down, realizing the adjustment of the height of the roller body 71.

[0036] In some embodiments, the screw 725 adopts a lead screw structure, and a ball nut is fixedly installed in the movable seat 724. The ball nut is installed on the lead screw, so that when the lead screw rotates, it drives the ball nut and the movable seat 724 to move up and down, thereby driving the roller 71 to move up and down.

[0037] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A double-sided coating primer, characterized in that: The machine comprises a frame and a clamping and pressing traction mechanism, a first-coating closed material box, a first-coating gravure roller, a second-coating closed material box, a second-coating gravure roller, a reversing roller and a roller assembly installed on the frame; the clamping and pressing traction mechanism is arranged at the bottom of the frame, the first-coating closed material box is connected with the first-coating gravure roller, and the first-coating closed material box is arranged in a vertical direction, the first-coating closed material box and the first-coating gravure roller are arranged above the clamping and pressing traction mechanism, the second-coating closed material box is connected with the second-coating gravure roller, and the second-coating closed material box is arranged in a vertical direction, the second-coating closed material box and the second-coating gravure roller are arranged above the first-coating closed material box, the reversing roller is arranged above the second-coating closed material box, and the substrate passes through the clamping and pressing traction mechanism, the first-coating gravure roller, the second-coating gravure roller and the reversing roller in sequence during tape walking, and the roller assembly is used to support the tape walking of the transmitted substrate.

2. A double-sided coating primer according to claim 1, characterized in that: The frame is provided with an approach roller, and the approach roller is used to drive the substrate to contact with the gravure coating roller.

3. A double-sided coating primer according to claim 1, characterized in that: The reversing roller is an air floating roller.

4. A double-sided coating primer according to claim 1, characterized in that: The roller assembly includes a first roller and a second roller. The first roller is arranged between the clamping and traction mechanism and a gravure coating roller, and the second roller is arranged between the gravure coating roller and the second coating roller.

5. A double-sided coating primer according to claim 4, characterized in that: The second roller is used to adjust the film wrap angle of the second coated gravure roller. The second roller includes a roller body and adjustment components arranged at both ends of the roller body. The adjustment components include a fixed seat, a movable seat, a guide structure and a driving structure. The fixed seat is installed on the frame. The movable seat is slidably connected to the fixed seat through a guide structure. The driving structure is used to drive the movable seat to move.

6. A double-sided coating primer according to claim 5, characterized in that: The driving structure comprises a screw rod rotatably connected to the fixed seat, the movable seat is provided with a threaded through hole, and the screw rod is connected to the threaded through hole.

7. A double-sided coating primer according to claim 1, characterized in that: The two-coating closed material box includes a material box, a main shaft, a material box moving component and a material pipe. The material pipe is connected to the material box. The material pipe is used to transport the coating slurry to the material box. The material box is installed on the main shaft. A material box moving component is provided at both ends of the main shaft. The material box moving component is used to drive the material box to approach or move away from the two-coating gravure roller.

8. A double-sided coating primer according to claim 7, characterized in that: The material box moving assembly includes a linear guide rail and a cylinder. The slide rail in the linear guide rail is fixedly installed on the frame. The slider in the linear guide rail is connected to the end of the main shaft. The cylinder is used to drive the main shaft to slide along the linear guide rail.

9. A double-sided coating primer according to claim 7, characterized in that: A handle is provided on the back side of the material box.

10. A double-sided coating primer according to claim 7, characterized in that: A material receiving box is arranged below the material box.

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