Laminating machine capable of automatically adjusting laminating thickness

Abstract

The utility model discloses a laminator capable of automatically adjusting lamination thickness, which comprises a laminator main body, a glue storage bin and a heating plate, the glue storage bin is arranged on one side in the laminator main body, the heating plate is mounted in the glue storage bin, and glue is contained in the glue storage bin; the gluing machine further comprises a gluing mechanism arranged on one side in the gluing machine body. According to the gluing device, glue is attached to the glue uniformizing mechanism to glue materials passing through the space between the limiting roller and the glue uniformizing mechanism, after the glue in the heating plate is adhered to the gluing roller, the gluing roller makes contact with the glue uniformizing roller in the rotating process so that the glue on the gluing roller can be more evenly distributed, and the glue on the gluing roller can be evenly distributed through contact with the gluing roller. The glue uniformizing roller can eliminate the possible problems of uneven thickness, bubbles or impurities and the like of glue on the gluing roller, so that the final gluing effect is smoother and more uniform, and the gluing thickness can be effectively controlled through the contact of the glue uniformizing roller and the gluing roller.

Description

Technical Field

[0001] This utility model relates to the field of gluing machine technology, and in particular to a gluing machine that automatically adjusts the gluing thickness. Background Technology

[0002] Laminating machines, also known as sealing machines, are an indispensable part of the offset printing industry. This entry details the development history, working principle, machine types, and common problems encountered during use of laminating machines, helping relevant companies and personnel to fully understand this machine. The lamination process involves bonding the items to be sealed within a plastic film coated with hot melt adhesive using a laminating machine. Because the process is carried out under certain pressure and high temperature, and uses high-quality polyester film and hot melt adhesive with good transparency;

[0003] A thickness-adjustable gluing machine, disclosed in announcement number CN215589944U, comprises a fixed inner roller fixed within a frame, a movable inner roller movably connected within the frame, a fixed gluing roller surrounding the fixed inner roller, one end of which is fixed with a fixed gear, and a movable gluing roller surrounding the movable inner roller, one end of which is fixed with a movable gear. A lifting bracket is fixed to the movable inner roller, and the output end of a lifting drive mechanism is connected to the lifting bracket. A drive gear is fixed to the output shaft of a gluing motor, and a transmission gear meshes with the fixed gear. A synchronous belt is wound around the drive gear, one end of which is wound around the movable gear. A translation drive mechanism is also provided within the frame, and its output end is connected to a translation bracket. A limit wheel is rotatably connected within the translation bracket, and the synchronous belt is also wound around the limit wheel. This invention can reliably clamp and glu objects with different thicknesses, and the limit wheel ensures that the synchronous belt is taut.

[0004] The existing technology described above can only adjust the distance between the movable and fixed glue rollers to meet different glue application requirements. However, during the glue application process, the amount of glue on the rollers is difficult to adjust, making it impossible to effectively spread the glue and resulting in difficulty in adjusting the glue thickness. Furthermore, it leads to poor glue uniformity, meaning that some areas may have excessively thick glue while others have insufficient glue, which affects the glue application efficiency and quality of the material. Therefore, corresponding improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a glue coating machine that automatically adjusts the glue coating thickness, so as to solve the problems mentioned in the background art, where the glue coating thickness is inconvenient to adjust and the glue coating uniformity is poor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic glue thickness adjustment glue machine, comprising a glue machine body, a glue storage tank, and a heating plate, wherein a glue storage tank is provided on one side inside the glue machine body, and a heating plate is installed inside the glue storage tank, and the glue storage tank contains glue.

[0007] It also includes: a glue coating mechanism is provided on one side of the body of the glue coating machine, a glue spreading mechanism is provided on one side of the glue coating mechanism, upright plates are fixed on both sides of the top of the body of the glue coating machine, and a top plate is fixed on the top of the upright plates, and a limit mechanism is provided at the bottom of the top plate.

[0008] Preferably, the glue application mechanism includes a rotary motor fixed to the outside of the glue applicator body, and the output shaft of the rotary motor is connected to a rotary spindle. A glue application roller is sleeved on the outside of the rotary spindle. A first belt assembly is sleeved on one end of the rotary spindle, and a driven shaft is connected to one end of the first belt assembly. A second belt assembly is sleeved on the outside of the driven shaft, and a linkage shaft is connected to one end of the second belt assembly. Conveyor rollers are sleeved on the outside of both the driven shaft and the linkage shaft.

[0009] Preferably, both the first belt assembly and the second belt assembly include a driving pulley, a driven pulley, and a drive belt. The driving pulley is respectively sleeved on the rotating main shaft and the driven shaft, and the driven pulley is respectively sleeved on the driven shaft and the linkage shaft.

[0010] Preferably, the limiting mechanism includes an adjusting screw threadedly connected to the inside of the top plate, with a handle fixed at one end of the adjusting screw and a lifting frame threadedly connected to the other end of the adjusting screw. The lifting frame has a U-shaped cross-section, and a limiting roller is rotatably connected inside the lifting frame via a connecting shaft.

[0011] Preferably, both sides of the lifting frame are fixed with sliders, and one side of each slider extends into a sliding groove. The sliding groove is provided on one side of the upright plate. The lifting frame is slidably connected to the upright plate. Both sides of the top of the lifting frame are fixed with telescopic guide rods, and one end of each telescopic guide rod is connected to the bottom end of the top plate.

[0012] Preferably, the glue-spreading mechanism includes a docking block fixed to the inner wall of the glue storage tank, and the docking block is provided with an installation groove inside. A slot is provided on one side of the installation groove, and a plug-in block is engaged inside the installation groove. A locking block is fixed on one side of the plug-in block and the locking block is engaged in the slot. A pressure plate is movably connected to the other side of the plug-in block, and a compression spring is connected between the pressure plate and the plug-in block.

[0013] Preferably, one end of the plug block is fixed with a strip plate, and one side of the strip plate is rotatably connected to a glue-spreading roller via a support plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the glue coating machine with automatic glue thickness adjustment not only has the function of glue thickness adjustment, but also has a detachable glue roller and a function of fixing the glue coating parts;

[0015] The adhesive is applied to the material passing between the limiting roller and the adhesive spreading mechanism by applying adhesive to the material on the spreading roller. After the adhesive on the applying roller is adhered to the adhesive in the heating plate, the applying roller contacts the spreading roller during rotation, so as to distribute the adhesive on the applying roller more evenly. Through contact with the applying roller, the spreading roller can eliminate problems such as uneven thickness, air bubbles or impurities that may exist on the applying roller, so as to make the final coating effect smoother and more uniform. In addition, the contact between the spreading roller and the applying roller can also effectively control the coating thickness. By having a certain gap between the spreading roller and the applying roller, the coating thickness can be adjusted to meet the coating thickness requirements of different products or processes.

[0016] Press the pressure plate to compress the compression spring, then lift the plug block upwards to disengage the locking block from the slot. This allows you to pull out the strip and remove the plug block from the mounting slot, enabling easy disassembly of the strip and the glue-spreading roller. When the glue-spreading roller is worn, aged, or damaged, it is not necessary to disassemble the entire glue-spreading equipment. You can simply remove the glue-spreading roller separately and replace it with a new one. This greatly saves maintenance time and costs, improves equipment maintenance efficiency, prevents glue residue, and helps optimize glue-spreading quality.

[0017] By rotating the adjusting screw, which is threaded to the top plate, the lifting frame is pushed downwards, causing it to slide down along the vertical plate. This allows for adjustment of the height of the limiting roller, which in turn adjusts the gap between the limiting roller and the gluing roller. This enables longitudinal limiting of materials of different thicknesses, ensuring the stability and uniformity of the material gluing process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0020] Figure 2 This is a side view of the structure of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the main body of the gluing machine of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the glue-spreading mechanism of this utility model;

[0023] Figure 5 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0024] The following are the annotations in the figure: 1. Main body of the gluing machine; 101. Glue storage bin; 2. Heating plate; 3. Rotary motor; 4. Rotary main shaft; 5. First belt assembly; 6. Second belt assembly; 7. Glue roller; 8. Glue spreading mechanism; 801. Strip plate; 802. Glue spreading roller; 803. Insertion block; 804. Connecting block; 805. Mounting groove; 806. Slot; 807. Pressure plate; 808. Compression spring; 809. Locking block; 9. Vertical plate; 10. Top plate; 11. Limiting mechanism; 1101. Adjusting screw; 1102. Lifting frame; 1103. Limiting roller; 1104. Telescopic guide rod; 12. Driven shaft; 13. Linkage shaft; 14. Conveying roller. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Please see Figures 1-5 The present invention provides the following technical solution: Example

[0027] To address the issue of inconvenient glue thickness adjustment in existing laminating machines, the following technical solution is proposed. Please refer to the following for details. Figure 1 , Figure 3 , Figure 4 , Figure 5A glue-applying machine with automatically adjustable glue thickness includes a glue-applying machine body 1, a glue storage tank 101, and a heating plate 2. The glue storage tank 101 is located inside one side of the glue-applying machine body 1, and the heating plate 2 is installed inside the glue storage tank 101, which contains glue. The machine also includes a glue-applying mechanism located inside one side of the glue-applying machine body 1. The glue-applying mechanism includes a rotary motor 3 fixed to the outside of the glue-applying machine body 1, and a rotary main shaft 4 connected to the output shaft of the rotary motor 3. A glue-applying roller 7 is sleeved on the outside of the rotary main shaft 4. A first belt assembly 5 is sleeved on one end of the rotary main shaft 4, and a driven shaft 12 is connected to one end of the first belt assembly 5. A second belt assembly 6 is sleeved on the outside of the driven shaft 12, and a linkage shaft 13 is connected to one end of the second belt assembly 6. Conveyor rollers 14 are sleeved on the outside of both the driven shaft 12 and the linkage shaft 13. The first belt assembly 5 and the second belt assembly 6... Each component 6 includes a drive wheel, a driven wheel, and a drive belt. The drive wheel is respectively sleeved on the rotating main shaft 4 and the driven shaft 12. The driven wheel is respectively sleeved on the driven shaft 12 and the linkage shaft 13. A glue-spreading mechanism 8 is provided on one side of the glue-applying mechanism. The glue-spreading mechanism 8 includes a docking block 804 fixed on the inner wall of the glue storage tank 101. The docking block 804 has an installation groove 805 inside. A slot 806 is provided on one side of the installation groove 805. An insertion block 803 is inserted into the installation groove 805. A locking block 809 is fixed on one side of the insertion block 803. The locking block 809 is locked in the slot 806. A pressure plate 807 is movably connected to the other side of the insertion block 803. A compression spring 808 is connected between the pressure plate 807 and the insertion block 803. A strip plate 801 is fixed to one end of the insertion block 803. A glue-spreading roller 802 is rotatably connected to one side of the strip plate 801 through a support plate.

[0028] In this embodiment, an appropriate amount of glue is injected into the glue storage hopper 101, and the glue is heated and melted using the heating plate 2. Then, the rotary motor 3 drives the rotating main shaft 4 and the glue-applying roller 7 to rotate, causing the glue-applying roller 7 to come into contact with the glue. During this process, the first belt assembly 5 and the second belt assembly 6 work together to rotate the driven shaft 12 and the linkage shaft 13, which in turn drives the conveyor roller 14 to move synchronously, thus laterally conveying the material placed on the conveyor roller 14. When the glue-applying roller 7 comes into contact with the material, the material is glued. During the rotation of the glue-applying roller 7, it comes into contact with the evenly distributed glue roller 802 to distribute the glue on the glue-applying roller 7 more evenly. The contact between the glue-spreading roller 802 and the glue-spreading roller 7 eliminates problems such as uneven glue thickness, air bubbles, or impurities that may exist on the glue-spreading roller 7, resulting in a smoother and more uniform final glue coating effect. It can also adjust the glue thickness accordingly. Later, pressing the pressure plate 807 compresses the compression spring 808, causing the locking block 809 to disengage from the slot 806 and the insertion block 803 to disengage from the mounting slot 805, thus facilitating the disassembly of the strip plate 801 and the glue-spreading roller 802. When the glue-spreading roller 802 is worn, aged, or damaged, it is not necessary to disassemble the entire glue coating equipment. Only the glue-spreading roller 802 needs to be removed and replaced with a new one, which also prevents glue residue and helps optimize the glue coating quality. Example

[0029] This embodiment differs from Embodiment 1 in that it utilizes the limiting mechanism 11 to limit materials of different thicknesses during the gluing process, thereby enhancing the stability of the material gluing. Therefore, the following technical solution is disclosed; please refer to the details. Figure 1 , Figure 2 The main body 1 of the gluing machine has two vertical plates 9 fixed on both sides of the top, and a top plate 10 fixed on the top of the vertical plates 9. A limit mechanism 11 is provided at the bottom of the top plate 10. The limit mechanism 11 includes an adjusting screw 1101 threadedly connected to the inside of the top plate 10. One end of the adjusting screw 1101 is fixed with a handle. The other end of the adjusting screw 1101 is threadedly connected to a lifting frame 1102. The lifting frame 1102 has a U-shaped cross section. A limit roller 1103 is rotatably connected inside the lifting frame 1102 through a connecting shaft. Slider blocks are fixed on both sides of the lifting frame 1102. One side of each slider extends into a slide groove. The slide groove is provided on one side of the vertical plate 9. The lifting frame 1102 is slidably connected to the vertical plate 9. Telescopic guide rods 1104 are fixed on both sides of the top of the lifting frame 1102. One end of each telescopic guide rod 1104 is connected to the bottom of the top plate 10.

[0030] In this embodiment, rotating the adjusting screw 1101, which is threadedly connected to the top plate 10, pushes the lifting frame 1102 downward, causing the sliders on both sides of the lifting frame 1102 to slide in the grooves on the vertical plate 9. This provides a limiting guide for the descent of the lifting frame 1102, improving its stability. Adjusting the height of the limiting roller 1103 adjusts the gap between the limiting roller 1103 and the gluing roller 7, allowing for longitudinal limiting of materials of different thicknesses. This ensures the stability of the material gluing process, prevents the material from tilting, and improves the uniformity of the gluing.

Claims

1. A glue-applying machine with automatic adjustment of glue thickness, comprising a glue-applying machine body (1), a glue storage tank (101), and a heating plate (2), wherein a glue storage tank (101) is provided on one side inside the glue-applying machine body (1), and a heating plate (2) is installed inside the glue storage tank (101), and the glue storage tank (101) contains glue. Its features are, Also includes: The glue applicator body (1) is provided with a glue coating mechanism on one side, and a glue spreading mechanism (8) is provided on one side of the glue coating mechanism. The glue applicator body (1) is fixed with upright plates (9) on both sides of the top, and a top plate (10) is fixed at the top of the upright plates (9). A limit mechanism (11) is provided at the bottom of the top plate (10).

2. The glue-coating machine with automatic glue thickness adjustment according to claim 1, characterized in that: The gluing mechanism includes a rotary motor (3) fixed to the outside of the glue applicator body (1), and the output shaft of the rotary motor (3) is connected to a rotary spindle (4). A glue roller (7) is sleeved on the outside of the rotary spindle (4). A first belt assembly (5) is sleeved on one end of the rotary spindle (4), and a driven shaft (12) is connected on one end of the first belt assembly (5). A second belt assembly (6) is sleeved on the outside of the driven shaft (12), and a linkage shaft (13) is connected on one end of the second belt assembly (6). Conveyor rollers (14) are sleeved on the outside of both the driven shaft (12) and the linkage shaft (13).

3. The glue-coating machine with automatic glue thickness adjustment according to claim 2, characterized in that: The first belt assembly (5) and the second belt assembly (6) each include a drive wheel, a driven wheel and a drive belt. The drive wheel is respectively sleeved on the rotating main shaft (4) and the driven shaft (12), and the driven wheel is respectively sleeved on the driven shaft (12) and the linkage shaft (13).

4. The glue-coating machine with automatic glue thickness adjustment according to claim 1, characterized in that: The limiting mechanism (11) includes an adjusting screw (1101) threadedly connected to the inside of the top plate (10), and one end of the adjusting screw (1101) is fixed with a handle. The other end of the adjusting screw (1101) is threadedly connected to a lifting frame (1102), and the lifting frame (1102) has a U-shaped cross section. The lifting frame (1102) is rotatably connected to a limiting roller (1103) through a connecting shaft inside.

5. A laminating machine for automatically adjusting the thickness of the adhesive coating according to claim 4, characterized in that: Both sides of the lifting frame (1102) are fixed with sliders, and one side of each slider extends into a sliding groove. The sliding groove is set on one side of the upright plate (9). The lifting frame (1102) is slidably connected to the upright plate (9). Both sides of the top of the lifting frame (1102) are fixed with telescopic guide rods (1104), and one end of each telescopic guide rod (1104) is connected to the bottom end of the top plate (10).

6. A laminating machine for automatically adjusting the thickness of the adhesive as described in claim 1, characterized in that: The glue spreading mechanism (8) includes a docking block (804) fixed on the inner wall of the glue storage tank (101), and the docking block (804) is provided with an installation groove (805). A slot (806) is provided on one side of the installation groove (805). A plug-in block (803) is snapped into the installation groove (805), and a locking block (809) is fixed on one side of the plug-in block (803). The locking block (809) is snapped into the slot (806). A pressure plate (807) is movably connected to the other side of the plug-in block (803), and a compression spring (808) is connected between the pressure plate (807) and the plug-in block (803).

7. A laminating machine for automatically adjusting the thickness of the adhesive coating according to claim 6, characterized in that: One end of the plug block (803) is fixed with a strip plate (801), and a glue roller (802) is rotatably connected to one side of the strip plate (801) via a support plate.

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