Rotatable hot melt adhesive laminator

Abstract

The utility model discloses a rotatable hot melt adhesive laminator, which relates to the technical field of hot melt adhesive laminators and comprises a machine body and a support arm, a lower roller is arranged at the top of the machine body, fixing plates are arranged on two sides of the bottom of the support arm, and an upper roller corresponding to the lower roller is mounted between the fixing plates; the laminator further comprises a driving device arranged on the laminator body, the driving device comprises a hand wheel and a steering gear, the steering gear is connected with the upper roller, and the hand wheel is rotated to drive the upper roller to swing upwards to be away from the lower roller. The driving device is arranged to drive the upper roller to swing upwards to be away from the lower roller, so that the upper roller is prevented from being damaged by waste heat of the lower roller; and the protective cover is arranged to protect the box body and the connecting seat, and meanwhile, the whole laminator is more attractive.

Description

Technical Field

[0001] This utility model relates to the technical field of hot melt adhesive applicator, and more specifically to a rotatable hot melt adhesive applicator. Background Technology

[0002] A hot melt adhesive coating machine is a specialized device for applying hot melt adhesive to various materials. It is widely used in multiple industries, including packaging, electronics, metals, toys, and furniture. Its main function is to evenly apply the required amount of adhesive to the material surface to achieve a good bonding effect.

[0003] Hot melt adhesive applicator includes a lower roller and an upper roller. The gap between the upper and lower rollers is used for material to pass through. The lower roller is responsible for rolling the material. The upper roller is generally made of rubber. When the hot melt adhesive applicator stops, the lower roller still has residual heat. However, the existing upper roller cannot swing. Over time, this causes the upper roller to deform and affect its use. Therefore, it is necessary to improve the structure. Utility Model Content

[0004] The purpose of this utility model is to provide a rotatable hot melt adhesive applicator in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A rotatable hot melt adhesive applicator includes a machine body and a support arm. A lower roller is provided on the top of the machine body, and fixed plates are provided on both sides of the bottom of the support arm. An upper roller corresponding to the lower roller is installed between the fixed plates.

[0007] The laminating machine also includes a drive unit on the machine body. The drive unit includes a handwheel and a steering mechanism. The steering mechanism is connected to the upper roller. By rotating the handwheel, the upper roller is driven to swing upward away from the lower roller.

[0008] The steering mechanism includes a housing, a driving helical gear, and a driven helical gear. The driving and driven helical gears are meshed together. A drive shaft is mounted on the driving helical gear, with both ends connected to bearings in the housing. The top end of the drive shaft extends outward from the housing and connects to the handwheel. A driven shaft is mounted on the driven helical gear, with both ends connected to bearings in the housing. The diameter of the driving helical gear is half the diameter of the driven helical gear. This ratio between the diameters of the driving and driven helical gears makes handwheel operation more effortless and stable.

[0009] The body is provided with a vertical plate, the steering gear is installed on one side of the vertical plate through a connecting seat, and a first connecting plate is provided on the side of the vertical plate away from the connecting seat. The driven shaft passes through the connecting seat and the vertical plate and is fixedly connected to the first connecting plate. The first connecting plate is connected to the support arm through a second connecting plate.

[0010] The connecting seat includes a connecting sleeve, with a mounting portion extending from the outer wall of one end of the connecting sleeve. The mounting portion is screwed to the housing. A connecting bearing is installed on the inner wall of the connecting sleeve. The driven shaft passes through the connecting sleeve and connects to the connecting bearing. The connecting sleeve is screwed to the vertical plate. The mounting portion has mounting screw holes at its four corners for connection to the housing, and the connecting sleeve has four connecting screw holes at the end away from the mounting portion for connection to the vertical plate.

[0011] The first connecting plate has fixing holes for fixing the driven shaft; the first connecting plate has first screw holes at its four corners, and the second connecting plate has second screw holes at its four corners corresponding to the first screw holes; the second connecting plate has four fixing screw holes in its center. The first connecting plate and the second connecting plate are screwed together through the first screw holes and the second screw holes, and the second connecting plate is screwed together with the support arm through the fixing screw holes.

[0012] The machine body is equipped with a protective cover to cover the housing and connecting base. The protective cover protects the housing and connecting base while also making the overall gluing machine more aesthetically pleasing.

[0013] An arc-shaped through hole is provided at the adjacent position of the protective cover and the vertical plate. One end of the roller of the upper roller extends into the protective cover through the arc-shaped through hole and is connected to a weight-increasing wheel. By setting the weight-increasing wheel, the overall weight of the upper roller is increased, making the material pass through the upper roller more smoothly.

[0014] The protective cover has magnets inside its sidewalls, which are used to hold and fix the weight-adding rollers. When the upper roller swings upward, the weight-adding rollers gradually approach the magnets. When the weight-adding rollers come into contact with the magnets, they are held and fixed by the magnets. The magnets are used to fix the weight-adding rollers.

[0015] When using this invention, rotating the handwheel causes the upper roller to swing away from the lower roller, making operation simple and extending the service life of the equipment.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention uses a drive device to swing the upper roller upwards away from the lower roller, thus preventing the residual heat from the lower roller from damaging the upper roller. A protective cover is also provided to protect the housing and connecting seat, while making the overall gluing machine more aesthetically pleasing. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a partial perspective view of the present invention;

[0020] Figure 3 This is a schematic diagram of the steering gear;

[0021] Figure 4 This is a structural diagram of the connector;

[0022] Figure 5 This is a structural diagram of the first connecting plate and the second connecting plate;

[0023] Figure 6 This is a schematic diagram of a structure in which magnets are installed on the inner wall of the protective cover.

[0024] Reference numerals: 1. Machine body; 2. Support arm; 3. Lower roller; 4. Fixing plate; 5. Upper roller; 6. Handwheel; 7. Housing; 8. Drive helical gear; 9. Driven helical gear; 10. Drive shaft; 11. Handwheel; 12. Driven shaft; 13. Vertical plate; 14. First connecting plate; 15. Second connecting plate; 16. Connecting sleeve; 17. Mounting part; 18. Connecting bearing; 19. Mounting screw hole; 20. Connecting screw hole; 21. Fixing hole; 22. First screw hole; 23. Second screw hole; 24. Fixing screw hole; 25. Protective cover; 26. Arc-shaped through hole; 27. Weight-adding wheel; 28. Magnet; 29. ​​Connecting seat. 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figures 1 to 6 As shown, this embodiment provides a rotatable hot melt adhesive applicator, including a machine body 1 and a support arm 2. The top of the machine body 1 is provided with a lower roller 3, and the bottom sides of the support arm 2 are provided with fixing plates 4. An upper roller 5 corresponding to the lower roller 3 is installed between the fixing plates 4.

[0029] The gluing machine also includes a drive unit on the machine body 1. The drive unit includes a handwheel 11 and a steering mechanism. The steering mechanism is connected to the upper roller 5. By rotating the handwheel 11, the upper roller 5 is driven to swing upward away from the lower roller 3.

[0030] The steering mechanism includes a housing 7, a driving helical gear 8, and a driven helical gear 9. The driving helical gear 8 and the driven helical gear 9 are meshed together. A driving shaft 10 is mounted on the driving helical gear 8, with both ends connected to bearings in the housing 7. The top end of the driving shaft 10 extends outward from the housing 7 and connects to the handwheel 11. A driven shaft 12 is mounted on the driven helical gear 9, with both ends connected to bearings in the housing 7. The diameter of the driving helical gear 8 is half the diameter of the driven helical gear 9. By setting the diameter ratio between the driving helical gear 8 and the driven helical gear, the operation of the handwheel 11 becomes more effortless and stable.

[0031] The body 1 is provided with a vertical plate 13. The steering gear is installed on one side of the vertical plate 13 via a connecting seat 29. A first connecting plate 14 is provided on the side of the vertical plate 13 away from the connecting seat 29. The driven shaft 12 passes through the connecting seat 29 and the vertical plate 13 and is fixedly connected to the first connecting plate 14. The first connecting plate 14 is connected to the support arm 2 via a second connecting plate 15.

[0032] The connecting seat 29 includes a connecting sleeve 16. An installation portion 17 extends from the outer wall of one end of the connecting sleeve 16 and is screwed to the housing 7. A connecting bearing 18 is installed on the inner wall of the connecting sleeve 16. The driven shaft 12 passes through the connecting sleeve 16 and connects to the connecting bearing 18. The connecting sleeve 16 is screwed to the vertical plate 13. The four corners of the installation portion 17 have mounting screw holes 19 for connection to the housing 7, and the end of the connecting sleeve 16 away from the installation portion 17 has four connecting screw holes 20 for connection to the vertical plate 13.

[0033] The first connecting plate 14 has fixing holes 21 for fixing the driven shaft 12. The first connecting plate 14 has four first screw holes 22 at its four corners, and the second connecting plate 15 has four second screw holes 23 at its four corners corresponding to the first screw holes 22. The second connecting plate 15 has four fixing screw holes 24 in its center. The first connecting plate 14 and the second connecting plate 15 are screwed together through the first screw holes 22 and the second screw holes 23. The second connecting plate 15 is screwed together with the support arm 2 through the fixing screw holes 24.

[0034] The machine body 1 is equipped with a protective cover 25, which is used to cover the housing 7 and the connecting seat 29. The protective cover 25 protects the housing 7 and the connecting seat 29, and at the same time makes the overall gluing machine more aesthetically pleasing.

[0035] An arc-shaped through hole 26 is provided at the adjacent position of the protective cover 25 and the vertical plate 13. One end of the roller of the upper roller 5 extends into the protective cover 25 through the arc-shaped through hole 26 and is connected to a weight-increasing wheel 27. By setting the weight-increasing wheel 27, the overall weight of the upper roller 5 is increased, making the material pass through the upper roller 5 more smoothly.

[0036] The protective cover 25 has a magnet 28 inside its side wall, which is used to hold and fix the weight-adding roller 27. When the upper roller 5 swings upward, the weight-adding roller 27 gradually approaches the magnet 28. When the weight-adding roller 27 comes into contact with the magnet 28, it is held and fixed by the magnet 28. The magnet 28 is used to fix the weight-adding roller 27.

[0037] When using this invention, rotating the handwheel 11 causes the upper roller 5 to swing away from the lower roller 3, making operation simple and extending the service life of the equipment.

Claims

1. A rotatable hot melt adhesive applicator, comprising a machine body and a support arm, wherein a lower roller is provided at the top of the machine body, and fixed plates are provided on both sides of the bottom of the support arm, and an upper roller corresponding to the lower roller is installed between the fixed plates; characterized in that: The laminating machine also includes a drive unit on the machine body. The drive unit includes a handwheel and a steering mechanism. The steering mechanism is connected to the upper roller. By rotating the handwheel, the upper roller is driven to swing upward away from the lower roller.

2. The rotatable hot melt adhesive applicator according to claim 1, characterized in that, The steering gear includes a housing, a driving helical gear, and a driven helical gear. The driving helical gear and the driven helical gear are meshed together. The driving helical gear is provided with a driving shaft. Both ends of the driving shaft are connected to the bearings of the housing. The top end of the driving shaft extends outward from the housing and is connected to a handwheel. The driven helical gear is provided with a driven shaft. Both ends of the driven shaft are connected to the bearings of the housing.

3. The rotatable hot melt adhesive applicator according to claim 2, characterized in that, The body is provided with a vertical plate, the steering gear is installed on one side of the vertical plate through a connecting seat, and a first connecting plate is provided on the side of the vertical plate away from the connecting seat. The driven shaft passes through the connecting seat and the vertical plate and is fixedly connected to the first connecting plate. The first connecting plate is connected to the support arm through a second connecting plate.

4. The rotatable hot melt adhesive applicator according to claim 3, characterized in that, The connecting seat includes a connecting sleeve, with an installation part extending from the outer wall of one end of the connecting sleeve. The installation part is screwed to the housing. A connecting bearing is installed on the inner wall of the connecting sleeve. When the driven shaft passes through the connecting sleeve, it is connected to the connecting bearing. The connecting sleeve is screwed to the vertical plate.

5. The rotatable hot melt adhesive applicator according to claim 4, characterized in that, The first connecting plate is provided with fixing holes for fixing the driven shaft; the first connecting plate is provided with first screw holes at four corners, the second connecting plate is provided with second screw holes at four corners corresponding to the first screw holes, and the second connecting plate is provided with four fixing screw holes in the middle.

6. The rotatable hot melt adhesive applicator according to claim 4, characterized in that, The machine body is equipped with a protective cover, which is used to cover the housing and the connecting base.

7. The rotatable hot melt adhesive applicator according to claim 6, characterized in that, An arc-shaped through hole is provided at the adjacent position of the protective cover and the vertical plate. One end of the roller of the upper roller extends into the protective cover through the arc-shaped through hole and is connected to a weight-adding wheel.

8. The rotatable hot melt adhesive applicator according to claim 7, characterized in that, The protective cover has magnets on its sidewalls, which are used to hold and fix the weight-adding wheels.

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