Automatic gluing device for double-sided film coating

Abstract

The utility model discloses an automatic gluing device for double-sided film coating, and relates to the technical field of film coating processing. The gluing device comprises a gluing box, an unwinding assembly, a glue storage box, conveying assemblies and a spraying pipe, the glue storage box is arranged on the rear side of the gluing box, the two sets of symmetrically-distributed conveying assemblies are arranged in the gluing box in the overlook view angle, and traction rollers which are symmetrically distributed up and down are rotationally connected to the positions, at one ends of the conveying assemblies, in the gluing box; compression rollers which are symmetrically distributed up and down are rotationally connected into the gluing box at the other end of the conveying assembly; square spray pipes are arranged above and below the two groups of conveying assemblies, branch pipes which are distributed at equal intervals are fixed in the spray pipes, and spray heads which are distributed at equal intervals are fixed on the periphery of each branch pipe in the direction towards the conveying assemblies. Through the arrangement of the gluing box, the spray pipe, the spray head, the glue pump, the glue storage box, the conveying assembly, the traction roller and the compression roller, the problems that materials are wasted and coating is not uniform due to roller gluing, and conveying of film coating materials cannot be shielded during double-sided gluing are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of film coating processing, in particular to a double-sided film coating automatic glue coating device. Background Art

[0002] Lamination, also known as "laminate", "mount glue", "film", etc., refers to the use of transparent plastic film to be laminated to the surface of printed matter through heat pressing to protect and increase the gloss. Lamination has been widely used for surface binding and protection of book covers, albums, commemorative albums, postcards, product manuals, calendars and maps. Common laminated packaging products include cartons, paper boxes, handbags, fertilizer bags, seed bags, self-adhesive labels, etc. However, not all lamination operations only require heat pressing. Some lamination operations also require gluing operations and then lamination pressing. However, there are still the following disadvantages in the actual gluing operation:

[0003] First, when laminating materials (such as fertilizer bags, cartons, paperboards, etc.), roller coating is usually used for gluing. This method requires a large amount of glue, and it is easy to cause uneven distribution of glue after roller coating, which may cause bumps or loose adhesion in the subsequent laminating process. In addition, the roller coating method uses a large amount of glue and is costly, so it is necessary to improve the gluing method to ensure uniform gluing and save glue as much as possible;

[0004] When laminating materials, double-sided lamination is sometimes required. If lamination is performed on one side only, the lamination time will be increased. If lamination is performed on both sides at the same time, the materials must be coated with glue and there must be no obstruction during lamination, which places certain limitations on the transportation of laminating materials. Utility Model Content

[0005] The utility model aims to provide an automatic double-sided film coating device, which solves the problems of waste of materials and uneven coating of roller coating liquid and the lack of obstruction in the transportation of the coating material during double-sided coating by arranging a coating box, a spray pipe, a nozzle, a glue pump, a glue storage box, a conveying assembly, a traction roller and a pressure roller.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses an automatic double-sided film coating device, comprising a coating box, an unwinding assembly, a glue storage box, a conveying assembly and a spray pipe, wherein a glue storage box is arranged at the rear side of the coating box, and two groups of symmetrically distributed conveying assemblies are arranged inside the coating box in a top view, and a traction roller symmetrically distributed up and down is rotatably connected in the coating box at one end of the conveying assembly, and a pressing roller symmetrically distributed up and down is rotatably connected in the coating box at the other end of the conveying assembly;

[0008] The conveying assembly includes a base plate and two rows of rollers rotatably connected to the side of the base plate, and the rollers are located on a side of the base plate close to the center of the glue coating box;

[0009] A U-shaped nozzle is arranged above and below the two groups of conveying components, and equidistantly distributed branch pipes are fixed inside the nozzle, and equidistantly distributed nozzles are fixed on the outer periphery of each branch pipe toward the conveying component.

[0010] Furthermore, both ends of the glue coating box are opened, and the material is conveyed in the direction of the traction roller and the pressure roller.

[0011] Furthermore, unwinding assemblies are provided at the upper and lower ends of the glue coating box, and the unwinding assemblies include two bearing seats and a reel rotatably connected to the bearing seats, and a through groove is opened in the glue coating box between the two bearing seats, and the two bearing seats are fixedly connected to the glue coating box.

[0012] Furthermore, a side of the base plate away from the roller is rotatably connected to a screw rod, and an end of the screw rod away from the base plate penetrates through the side wall of the glue coating box and extends out and is fixed with a hand wheel, and the screw rod is threadedly connected to the side wall of the glue coating box.

[0013] Furthermore, a glue pump is fixed to one side of the glue storage box close to the glue coating box, a glue pumping tube is fixed to the liquid extraction end of the glue pump and is connected to the inside of the glue storage box, and a Y-shaped glue outlet tube is fixed to the liquid outlet end of the glue pump.

[0014] Furthermore, a connecting pipe is fixedly passed through the outer periphery of each nozzle, and one end of the connecting pipe away from the nozzle passes through the side wall of the glue coating box and extends out, and the two ends of the glue outlet pipe away from the glue pump are respectively passed through and fixed to the connecting pipes outside the two nozzles.

[0015] Furthermore, the traction roller and the pressure roller are of equal size, and the spray pipe is located in the inner cavity of the glue coating box.

[0016] The utility model has the following beneficial effects:

[0017] The utility model solves the problem of wasteful material and uneven coating of roller glue liquid by arranging a glue coating box, a spray pipe, a spray head, a glue pump and a glue storage box; the glue liquid is stored in the glue storage box, and the glue pump works in conjunction with the glue liquid, and the glue liquid is extracted by a glue extraction hose, and then output through a glue outlet hose, enters the spray pipe through a connecting pipe, and then enters a branch pipe and is finally sprayed out by the spray head, thereby achieving uniform glue spraying operation, and performing double-sided glue spraying on the material between the two spray pipes, which saves more glue liquid and saves costs than roller-type glue coating, and the glue spraying method makes the glue liquid coverage more uniform.

[0018] The utility model solves the problem that there cannot be any obstruction in the conveying of the coated material during double-sided gluing by arranging a conveying component, a traction roller and a pressure roller. Firstly, the uncoated material is clamped and conveyed between the two traction rollers, and both the traction roller and the pressure roller can be connected to an external driving device. Then, the two edges of the material are guided to the two conveying components, and the edges of the material are clamped and conveyed by the conveying components, so that a large area in the middle is leaked out, which is convenient for subsequent gluing operations. Finally, after the gluing is completed, double-sided lamination is started, and finally the material is pressed by the two pressure rollers and then guided out, thereby completing the integrated gluing and laminating operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0020] Figure 1 It is a three-dimensional diagram of a double-sided laminating automatic gluing device;

[0021] Figure 2 for Figure 1 Another structural diagram from another perspective;

[0022] Figure 3 It is the structural diagram of the glue coating box after the cutaway view;

[0023] Figure 4 for Figure 3 The structural diagram after the unwinding assembly is removed;

[0024] Figure 5 is a structural diagram of the conveying component;

[0025] Figure 6 This is the structural diagram of the nozzle.

[0026] Reference numerals:

[0027] 1. Glue coating box; 101. Through slot; 2. Unwinding assembly; 201. Bearing seat; 202. Reel; 3. Glue storage box; 4. Glue pump; 401. Glue extraction hose; 402. Glue outlet hose; 5. Pressing roller; 6. Conveying assembly; 601. Base plate; 602. Roller; 603. Screw; 6031. Hand wheel; 7. Traction roller; 8. Spray pipe; 801. Branch pipe; 8011. Spray head; 802. Connecting pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-6As shown, the utility model is an automatic double-sided film coating device, comprising a coating box 1, an unwinding assembly 2, a glue storage box 3, a conveying assembly 6 and a nozzle 8. The glue storage box 3 is arranged at the rear side of the coating box 1. Two groups of symmetrically distributed conveying assemblies 6 are arranged inside the coating box 1 in a top view. The coating box 1 at one end of the conveying assembly 6 is rotatably connected to a traction roller 7 symmetrically distributed up and down, and the coating box 1 at the other end of the conveying assembly 6 is rotatably connected to a pressing roller 5 symmetrically distributed up and down;

[0030] The glue storage box 3 is used to store the glue required for gluing. The inside of the glue box 1 is used as the main place for gluing. The traction roller 7 and the pressure roller 5 can be connected to an external driving device (such as a motor). The material to be glued is first conveyed between the traction rollers 7 and moves toward the inside of the glue box 1. Then, the side edges of the glue-coated substrate are clamped and conveyed by two conveying components 6, and the large area that needs to be glued is leaked out, and then the glue is coated. After gluing, it is coated with a film, and finally it is pressed and flattened by two pressure rollers 5 and then output;

[0031] The conveying assembly 6 includes a base plate 601 and two rows of rollers 602 rotatably connected to the side of the base plate 601. The rollers 602 are located on one side of the base plate 601 close to the center of the glue coating box 1.

[0032] The two rows of rollers 602 correspond to the upper and lower surfaces of the edge of the glue-coated substrate, clamp and convey the edge of the glue-coated material, and try not to block the glue-coated surface, so that the subsequent glue coating is more uniform and sufficient. The edge is often required to be cut off in the subsequent processing, so even if it is not coated with glue, it does not affect the use;

[0033] A U-shaped nozzle 8 is disposed above and below the two groups of conveying components 6, and equidistantly distributed branch pipes 801 are fixed inside the nozzle 8, and equidistantly distributed nozzles 8011 are fixed on the outer periphery of each branch pipe 801 in the direction toward the conveying component 6;

[0034] The glue liquid enters the nozzle 8, then enters the branch pipe 801, and is finally sprayed onto the surface of the substrate through the nozzle 8011, thereby realizing a spray-type glue coating process, which consumes less glue and provides a more uniform coating.

[0035] Both ends of the glue coating box 1 are open, and the material is conveyed in the direction of the traction roller 7 and the pressure roller 5, so that the substrate can be easily put into the glue coating box 1 for glue coating.

[0036] The upper and lower ends of the glue coating box 1 are both provided with an unwinding assembly 2, the unwinding assembly 2 includes two bearing seats 201 and a reel 202 rotatably connected to the bearing seats 201, and a through slot 101 is provided in the glue coating box 1 between the two bearing seats 201, and the two bearing seats 201 are fixedly connected to the glue coating box 1;

[0037] The unwinding assembly 2 is used to reel in and out the plastic film. The plastic film is placed outside the reel 202. After unwinding, the reel 202 rotates, and the plastic film passes through the through slot 101 and enters the glue coating box 1, covers the glued substrate, and is then pressed by the pressing roller 5 and led out.

[0038] The side of the substrate 601 away from the roller 602 is rotatably connected to a screw rod 603, and the end of the screw rod 603 away from the substrate 601 passes through the side wall of the glue coating box 1 and extends out and is fixed with a hand wheel 6031, and the screw rod 603 is threadedly connected to the side wall of the glue coating box 1; by rotating the screw 603, the amount of proximity of the substrate 601 to the glue coating box 1 can be controlled, thereby controlling the distance between the two substrates 601, so that when the subsequent roller 602 presses the substrate, it can be used to adapt to the width of the corresponding substrate.

[0039] A glue pump 4 is fixed to one side of the glue storage box 3 close to the glue coating box 1. A glue pumping tube 401 is fixed to the liquid extraction end of the glue pump 4 and is connected to the inside of the glue storage box 3. A Y-shaped glue outlet tube 402 is fixed to the liquid outlet end of the glue pump 4.

[0040] A connecting pipe 802 is also fixedly passed through the outer periphery of each nozzle 8, and one end of the connecting pipe 802 away from the nozzle 8 passes through the side wall of the glue coating box 1 and extends out, and the two ends of the glue outlet pipe 402 away from the glue pump 4 are respectively connected and fixed to the connecting pipes 802 outside the two nozzles 8;

[0041] The glue storage box 3 is used to store the glue liquid, and the glue pump 4 works together to extract the glue liquid through the glue extraction hose 401, and then output it through the other two ends of the glue outlet hose 402. After being connected by two connecting pipes 802, it enters the two nozzles 8, and then enters the branch pipe 801 and is finally sprayed out by the nozzle 8011.

[0042] The pulling roller 7 and the pressing roller 5 are of equal size, and the spray pipe 8 is located in the inner cavity of the glue coating box 1.

[0043] The specific working principle of the utility model is as follows: first, the screw 603 is rotated to control the substrate 601 to be close to the glue coating box 1, thereby controlling the distance between the two substrates 601, thereby adapting to the width of the corresponding substrate, so that the roller 602 can accurately press the edge of the substrate, and then the traction roller 7 and the pressure roller 5 are connected to the external driving device to rotate, and the substrate to be coated with glue is first conveyed between the traction rollers 7 (the substrate conveying direction is Figure 1), moves toward the inside of the glue coating box 1, and then the side edges of the glue-coated substrate are clamped and conveyed by the rollers 602 in the two conveying components 6, leaking out the large area that needs to be coated with glue. When it is transported to between the nozzles 8, the glue pump 4 works, extracts the glue through the glue extraction hose 401, and then outputs it through the other two ends of the glue outlet hose 402. After being connected by two connecting pipes 802, it enters the two nozzles 8, and then enters the branch pipe 801, and is finally sprayed onto the upper and lower surfaces of the substrate by the nozzle 8011, so as to achieve uniform glue spraying treatment; then, the plastic film in the two unwinding components 2 is pulled, and the reel 202 rotates after unwinding, and the plastic film passes through the through slot 101 into the glue coating box 1, covers the glue-coated substrate, and is finally pressed by the pressing roller 5 and led out to complete the glue coating operation.

[0044] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A double-sided film laminating automatic glue coating device, comprising a glue coating box (1), a reeling assembly (2), a glue storage box (3), a conveying assembly (6) and a nozzle (8), characterized in that: A glue storage box (3) is arranged at the rear side of the glue coating box (1), and two groups of symmetrically distributed conveying components (6) are arranged inside the glue coating box (1) when viewed from a top view. A traction roller (7) symmetrically distributed up and down is rotatably connected to the glue coating box (1) at one end of the conveying component (6), and a pressing roller (5) symmetrically distributed up and down is rotatably connected to the glue coating box (1) at the other end of the conveying component (6); The conveying assembly (6) comprises a base plate (601) and two rows of rollers (602) rotatably connected to the side of the base plate (601), wherein the rollers (602) are located on a side of the base plate (601) close to the center of the glue coating box (1); A U-shaped nozzle (8) is provided above and below the two groups of conveying components (6), and equally spaced branch pipes (801) are fixed inside the nozzle (8), and equally spaced nozzles (8011) are fixed on the outer circumference of each branch pipe (801) in the direction toward the conveying component (6).

2. The double-sided film laminating automatic gluing device according to claim 1, characterized in that: Both ends of the glue coating box (1) are open, and the material is conveyed in the direction of the traction roller (7) and the pressure roller (5).

3. The double-sided film laminating automatic gluing device according to claim 1, characterized in that: The upper and lower ends of the glue coating box (1) are both provided with an unwinding assembly (2), the unwinding assembly (2) comprising two bearing seats (201) and a reel (202) rotatably connected to the bearing seats (201), and a through slot (101) is provided in the glue coating box (1) between the two bearing seats (201), and the two bearing seats (201) are fixedly connected to the glue coating box (1).

4. The double-sided film laminating automatic gluing device according to claim 1, characterized in that: A screw rod (603) is rotatably connected to a side of the base plate (601) away from the roller (602), and an end of the screw rod (603) away from the base plate (601) penetrates through the side wall of the glue coating box (1) and is fixed with a hand wheel (6031), and the screw rod (603) is threadedly connected to the side wall of the glue coating box (1).

5. The double-sided film laminating automatic gluing device according to claim 1, characterized in that: A glue pump (4) is fixed to a side of the glue storage box (3) close to the glue coating box (1); a glue extraction tube (401) is fixed to a liquid extraction end of the glue pump (4) and is connected to the inside of the glue storage box (3); and a Y-shaped glue outlet tube (402) is fixed to a liquid outlet end of the glue pump (4).

6. The double-sided film laminating automatic gluing device according to claim 5, characterized in that: A connecting tube (802) is also fixedly passed through the outer periphery of each of the nozzles (8), and one end of the connecting tube (802) away from the nozzle (8) passes through the side wall of the glue coating box (1) and extends out, and the two ends of the glue outlet pipe (402) away from the glue pump (4) are respectively connected and fixed to the connecting tubes (802) outside the two nozzles (8).

7. The double-sided film laminating automatic gluing device according to claim 1, characterized in that: The pulling roller (7) and the pressing roller (5) are of equal size, and the spray pipe (8) is located in the inner cavity of the glue coating box (1).

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