Hot melt adhesive coating and laminating machine
By using the snap-fit assembly of the elliptical and L-shaped blocks and the heating wire assembly of the heating box, the problem of the cover plate loosening under vibration or external impact in hot melt adhesive coating equipment is solved, achieving stability and precision in adhesive coating, and suitable for coating needs of various materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-03-31
AI Technical Summary
Existing hot melt adhesive coating and bonding equipment is prone to having its cover plate loosened or detached under vibration or external impact, affecting the normal operation of the equipment.
The cover plate is fixed by a buckle assembly of elliptical blocks and L-shaped blocks. Combined with a heating box and heating wire assembly, it ensures uniform melting and smooth dispensing of hot melt adhesive. The application position is precisely controlled by a drive motor that drives pulleys and belts.
This ensures the cover plate remains secure during operation, and the hot melt adhesive is applied evenly and over a wide range, suitable for materials of different specifications, thus improving the stability of the equipment and the quality of the adhesive application.
Smart Images

Figure CN224057868U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot melt adhesive coating and bonding technology, and in particular to a hot melt adhesive coating and bonding machine. Background Technology
[0002] Hot melt adhesive coating and bonding machine is an industrial device that integrates mechanical transmission, thermal control and intelligent sensing technology to uniformly coat hot melt adhesive on the surface of various materials and achieve a firm bond between the materials.
[0003] The hot melt adhesive coating and bonding equipment currently used fixes the cover plate to the structure by sliding it directly into the structure. When the cover plate slides accurately into the structure, it can fit tightly with the structure, forming a good sealing effect. This effectively prevents the hot melt adhesive from overflowing during heating or coating, and also prevents external impurities from entering the structure where the hot melt adhesive is placed, thus affecting the quality of the hot melt adhesive.
[0004] Although the method of fixing the cover plate to the structure by sliding it directly into the structure is simple and has good sealing performance, the sliding fixation mainly relies on the friction and fitting precision between the cover plate and the structure to maintain the fixed state. For some hot melt adhesive coating and bonding equipment that will generate large vibrations or external impacts during operation, the cover plate may become loose or even fall off, thus affecting the normal operation of the equipment. Therefore, a hot melt adhesive coating and bonding machine is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a hot melt adhesive coating and bonding machine, which aims to improve the problem that the existing technology cannot effectively achieve a firm connection with the cover plate.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A hot melt adhesive coating and bonding machine includes a baffle, a connecting plate, and a housing. Lifting components are provided at both ends of the connecting plate, a cover plate is provided at the end of the housing, and snap-fit components are provided at both ends of the cover plate. A heating component is provided at the bottom of the housing, a left-right moving component is provided on the side of the connecting plate, and a conveying component is provided on the inner side of the baffle.
[0008] The buckle assembly includes an L-shaped block, the end of which is rotatably connected to the inner side of the cover plate. Two fixing blocks are fixedly connected to the side of the housing. A connecting rod is slidably connected to the inner side of each fixing block. An elliptical locking block and a pull ring are fixedly connected to the two ends of the two connecting rods respectively. The two elliptical locking blocks are respectively located on the inner side of the other end of the L-shaped block.
[0009] As a further description of the above technical solution:
[0010] The heating assembly includes a heating box, which is fixedly connected to the bottom side of the housing. Two heating wire assemblies are provided at both ends of the heating box. A glue dispensing tube is fixedly connected to the inner side of the housing and the heating box. Multiple heating wire assemblies are arranged outside the glue dispensing tube. A hot melt glue rod is arranged inside the glue dispensing tube.
[0011] As a further description of the above technical solution:
[0012] The left and right moving component includes two pulleys, which are rotatably connected to both ends of the connecting plate. Each of the two pulleys is fitted with a belt. A drive motor is fixedly connected to the end of the connecting plate. One of the pulleys is fixedly connected to the output end of the drive motor. A limit block is fixedly connected to the outside of the housing. A limit block is fixedly connected to the side of the heating box. Both the limit block and the limit block are slidably connected to the inside of the connecting plate.
[0013] As a further description of the above technical solution:
[0014] The lifting assembly includes a lifting shell, which is fixedly connected to the side of the baffle. A toothed block plate is slidably connected to the inner side of the lifting shell, and a gear is rotatably connected to the inner side of the lifting shell. The gear meshes with the toothed block plate. A third drive motor is fixedly connected to the outer side of the lifting shell, and the gear is fixedly connected to the output end of the third drive motor.
[0015] As a further description of the above technical solution:
[0016] The conveying assembly includes two pulleys, which are rotatably connected to the baffle. A conveyor belt is fitted on the outer side of each pulley. A drive motor is fixedly connected to the outer side of the baffle, and one of the pulleys is fixedly connected to the output end of the drive motor.
[0017] As a further description of the above technical solution:
[0018] A spring push rod is fixedly connected to the inner side of the cover plate, and the end of the spring push rod is located on the side of the hot melt glue rod.
[0019] As a further description of the above technical solution:
[0020] A fixing block is fixedly connected to the inner side of the baffle, and the conveyor belt is slidably connected to the outer side of the fixing block.
[0021] As a further description of the above technical solution:
[0022] The bottom of the baffle is fixedly connected to multiple bases.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, the combination of the elliptical locking block and the L-shaped block securely fixes the cover plate, ensuring it will not loosen during operation and guaranteeing the stability and safety of the equipment. The heating wire assemblies at both ends of the heating box heat the dispensing tube, allowing the hot melt adhesive stick to be heated evenly and melt quickly. Furthermore, the heating box, fixed to the bottom of the housing, effectively maintains the liquid state of the hot melt adhesive, ensuring smooth dispensing and improving the quality and effect of the adhesive application.
[0025] 2. In this utility model, the drive motor 2 drives pulley 1 and belt to rotate, causing the connecting plate and related components to move left and right. This allows for adhesive application to different positions, expanding the coverage area and making it suitable for adhesive application to materials of different specifications and sizes. Limiting blocks 1 and 2 constrain the sliding of the connecting plate, ensuring the accuracy of the adhesive application position and improving the precision and consistency of the adhesive application. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a hot melt adhesive coating and bonding machine proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the structure of the baffle of a hot melt adhesive coating and bonding machine proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the adhesive dispensing pipe of a hot melt adhesive coating and bonding machine according to the present invention.
[0029] Figure 4 This is a schematic diagram of the housing of a hot melt adhesive coating and bonding machine according to the present invention;
[0030] Figure 5 This is a schematic diagram of the structure of an L-shaped block in a hot melt adhesive coating and bonding machine according to the present invention;
[0031] Figure 6 This is a schematic diagram of the toothed block plate of a hot melt adhesive coating and bonding machine proposed in this utility model.
[0032] Figure 7 This is a schematic diagram of the gear structure of a hot melt adhesive coating and bonding machine proposed in this utility model.
[0033] Legend:
[0034] 1. Baffle; 2. Conveyor belt; 3. Base; 4. Lifting shell; 5. Toothed block plate; 6. Drive motor one; 7. Connecting plate; 8. Belt; 9. Limiting block one; 10. Shell; 11. Pulley one; 12. Cover plate; 13. Spring push rod; 14. Pulley two; 15. Fixing block one; 16. Heating wire assembly; 17. Heating box; 18. Hot melt glue stick; 19. Glue dispensing tube; 20. L-shaped block; 21. Limiting block two; 22. Drive motor two; 23. Fixing block two; 24. Connecting rod; 25. Oval locking block; 26. Pull ring; 27. Drive motor three; 28. Gear. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0036] Reference Figure 1 , Figure 3 and Figure 5 The present invention provides an embodiment of a hot melt adhesive coating and bonding machine, comprising a baffle 1, a connecting plate 7 and a housing 10, characterized in that: both ends of the connecting plate 7 are provided with lifting components, the end of the housing 10 is provided with a cover plate 12, both ends of the cover plate 12 are provided with buckle components, the bottom of the housing 10 is provided with a heating component, the side of the connecting plate 7 is provided with a left and right moving component, and the inner side of the baffle 1 is provided with a conveying component.
[0037] The latching assembly includes an L-shaped block 20, the end of which is rotatably connected to the inner side of the cover plate 12. Two fixing blocks 23 are fixedly connected to the side of the housing 10. Connecting rods 24 are slidably connected to the inner sides of each fixing block 23. Elliptical locking blocks 25 and pull rings 26 are fixedly connected to the ends of the two connecting rods 24, respectively. The two elliptical locking blocks 25 are respectively located inside the other end of the L-shaped block 20. When it is necessary to open the cover plate 12 for maintenance, replacement of the hot melt adhesive rod 18, etc., pull the pull ring 26 to slide the connecting rod 24 inside the fixing block 23, causing the elliptical locking blocks 25 to move away from the other end of the L-shaped block 20. Then, rotating the L-shaped block 20 will open the cover plate 12. When maintenance is complete and the cover plate 12 needs to be closed, rotate the L-shaped block 20 back to its original position, release the pull ring 26, and the elliptical locking block 25, driven by the connecting rod 24, will re-lock into the inner side of the other end of the L-shaped block 20, thereby fixing the cover plate 12 and ensuring that the cover plate 12 will not be accidentally opened during equipment operation.
[0038] Reference Figure 1 , Figure 3 and Figure 4The heating assembly includes a heating box 17, which is fixedly connected to the bottom side of the housing 10. Two heating wire assemblies 16 are provided at both ends of the heating box 17. A dispensing tube 19 is fixedly connected to the inside of the housing 10 and the heating box 17. Multiple heating wire assemblies 16 are disposed outside the dispensing tube 19, and a hot melt adhesive rod 18 is disposed inside the dispensing tube 19. The heating wire assemblies 16 at both ends of the heating box 17 start working, generating heat. The multiple heating wire assemblies 16, located outside the dispensing tube 19, transfer heat to the hot melt adhesive rod 18 located inside the dispensing tube 19, causing the hot melt adhesive rod 18 to melt. A spring push rod 13 is fixedly connected to the inside of the cover plate 12, with the end of the spring push rod 13 disposed on the side of the hot melt adhesive rod 18. The end of the spring push rod 13 abuts against the side of the hot melt glue stick 18, applying a certain pressure to the hot melt glue stick 18 so that the hot melt glue stick 18 can better contact the glue outlet tube 19 during the melting process, ensuring that the hot melt glue flows out smoothly from the glue outlet tube 19.
[0039] Reference Figure 1 and Figure 4 The left-right movement component includes two pulleys 11, which are rotatably connected to both ends of the connecting plate 7. A belt 8 is fitted around the outer side of each pulley 11. A drive motor 22 is fixedly connected to the end of the connecting plate 7, with one pulley 11 fixedly connected to the output end of the drive motor 22. A limit block 9 is fixedly connected to the outer side of the housing 10, and a limit block 21 is fixedly connected to the side of the heating chamber 17. Both limit blocks 9 and 21 are slidably connected to the inner side of the connecting plate 7. When the drive motor 22 starts, it drives the pulleys 11 to rotate. The rotation of one pulley 11 drives the other pulley 11 to rotate synchronously via the belt 8. The limit block 9 on the outer side of the housing 10 and the limit block 21 on the side of the heating chamber 17 are slidably connected to the inner side of the connecting plate 7. When the belt 8 rotates, it drives the connecting plate 7 and connected components such as the housing 10 and the heating chamber 17 to move in the left-right direction. By controlling the forward and reverse rotation and the running time of the drive motor 22, the left and right positions of the adhesive can be precisely adjusted to achieve adhesive application for materials of different widths.
[0040] Reference Figure 1 , Figure 6 and Figure 7The lifting assembly includes a lifting housing 4, which is fixedly connected to the side of the baffle 1. A toothed block plate 5 is slidably connected to the inner side of the lifting housing 4, and a gear 28 is rotatably connected to the inner side of the lifting housing 4, meshing with the toothed block plate 5. A drive motor 27 is fixedly connected to the outer side of the lifting housing 4, and the gear 28 is fixedly connected to the output end of the drive motor 27. When the drive motor 27 is started, it drives the gear 28 to rotate. Since the gear 28 and the toothed block plate 5 are meshed, the rotation of the gear 28 causes the toothed block plate 5 to slide up and down inside the lifting housing 4. The lifting housing 4 is fixed to the side of the baffle 1, and the toothed block plate 5 is connected to the connecting plate 7. Therefore, the up and down sliding of the toothed block plate 5 will drive the connecting plate 7 and the entire assembly connected to the connecting plate 7 to rise and fall together.
[0041] Reference Figure 1 and Figure 2 The conveying assembly includes two pulleys 14, each rotatably connected to a baffle 1. A conveyor belt 2 is fitted around the outer side of each pulley 14. A drive motor 6 is fixedly connected to the outer side of the baffle 1, with one pulley 14 fixedly connected to the output end of the drive motor 6. When the drive motor 6 starts, its output end drives the pulley 14 to rotate. Since the conveyor belt 2 is fitted around the outer side of the two pulleys 14, the rotation of one pulley 14 drives the other pulley 14 to rotate synchronously via the conveyor belt 2, thus starting the conveyor belt 2. The material to be glued is placed on the conveyor belt 2 and conveyed to the gluing area as the conveyor belt 2 rotates. A fixing block 15 is fixedly connected to the inner side of the baffle 1, and the conveyor belt 2 is slidably connected to the outer side of the fixing block 15. The fixing block 15 serves to limit and support the conveyor belt 2, ensuring stable operation and preventing deviation. Multiple bases 3 are fixedly connected to the bottom of the baffle 1.
[0042] Working principle: First, start the drive motor 6 to drive one of the pulleys 14 to rotate, which in turn drives the other pulley 14 to rotate through the conveyor belt 2, thereby making the conveyor belt 2 run and transporting the material to be glued from the feed port to the glued bonding area.
[0043] Then, the hot melt glue stick 18 is placed in the housing 10 and aligned with the dispensing tube 19. The L-shaped block 20 is rotated to engage with the elliptical locking block 25, and the pull ring 26 is pulled to lock the elliptical locking block 25 into the L-shaped block 20, thus fixing the cover plate 12. The heating wire assemblies 16 at both ends of the heating box 17 heat the dispensing tube 19, causing the hot melt glue stick 18 inside the dispensing tube 19 to melt. The heating box 17 is fixed to the bottom of the housing 10, and the heat is transferred to the housing 10 and the dispensing tube 19 to maintain the liquid state of the hot melt glue for smooth dispensing. The spring push rod 13 in the cover plate 12 exerts a certain pushing force on the hot melt glue stick 18, allowing it to better contact the dispensing tube 19 during the melting process, ensuring smooth dispensing.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hot melt glue coating and tacking machine comprising a baffle (1), a connecting plate (7) and a housing (10), characterized in that: The connecting plate (7) is provided with lifting assemblies at both ends, the shell (10) is provided with a cover plate (12) at one end, the cover plate (12) is provided with buckle assemblies at both ends, the bottom of the shell (10) is provided with a heating assembly, the side of the connecting plate (7) is provided with left and right moving assemblies, and the inner side of the baffle (1) is provided with a conveying assembly. The buckle assembly comprises an L-shaped block (20), the L-shaped block (20) is rotatably connected to the inner side of the cover plate (12), two fixed blocks two (23) are fixedly connected to the side of the shell (10), connecting rods (24) are slidably connected to the inner sides of the two fixed blocks two (23), elliptical clamping blocks (25) and pull rings (26) are fixedly connected to the two ends of the two connecting rods (24) respectively, and the two elliptical clamping blocks (25) are arranged on the inner sides of the other ends of the L-shaped blocks (20) respectively.
2. The hot melt adhesive coating and bonding machine of claim 1, wherein: The heating assembly comprises a heating box (17), the heating box (17) is fixedly connected to the bottom side of the shell (10), two heating wire assemblies (16) are arranged at the two ends of the heating box (17), an adhesive outlet pipe (19) is fixedly connected to the inner sides of the shell (10) and the heating box (17), a plurality of heating wire assemblies (16) are arranged outside the adhesive outlet pipe (19), and a hot melt adhesive stick (18) is arranged on the inner side of the adhesive outlet pipe (19).
3. The hot melt adhesive coating and bonding machine of claim 2, wherein: The left and right moving assemblies comprise two belt pulleys one (11), the two belt pulleys one (11) are rotatably connected to the two ends of the connecting plate (7), the outer sides of the two belt pulleys one (11) are sleeved with belts (8), a driving motor two (22) is fixedly connected to the end of the connecting plate (7), one of the belt pulleys one (11) is fixedly connected to the output end of the driving motor two (22), a limiting block one (9) is fixedly connected to the outer side of the shell (10), a limiting block two (21) is fixedly connected to the side of the heating box (17), and the limiting block one (9) and the limiting block two (21) are slidably connected to the inner side of the connecting plate (7).
4. The hot melt adhesive coating and bonding machine of claim 1, wherein: The lifting assembly comprises a lifting shell (4), the lifting shell (4) is fixedly connected to the side of the baffle (1), a tooth block plate (5) is slidably connected to the inner side of the lifting shell (4), a gear (28) is rotatably connected to the inner side of the lifting shell (4), the gear (28) is in meshing connection with the tooth block plate (5), a driving motor three (27) is fixedly connected to the outer side of the lifting shell (4), and the gear (28) is fixedly connected to the output end of the driving motor three (27).
5. The hot melt adhesive coating and bonding machine of claim 1, wherein: The conveying assembly comprises two belt pulleys two (14), the two belt pulleys two (14) are rotatably connected to the baffle (1), the outer sides of the two belt pulleys two (14) are sleeved with conveying belts (2), a driving motor one (6) is fixedly connected to the outer side of the baffle (1), and one of the belt pulleys two (14) is fixedly connected to the output end of the driving motor one (6).
6. The hot melt adhesive coating and bonding machine of claim 2, wherein: The inner side of the cover plate (12) is fixedly connected with a spring push rod (13), and the end of the spring push rod (13) is arranged on the side of the hot melt adhesive stick (18).
7. The hot melt adhesive coating and bonding machine of claim 5, wherein: The fixed block one (15) is fixedly connected to the inner side of the baffle (1), and the conveying belt (2) is slidably connected to the outer side of the fixed block one (15).
8. The hot melt adhesive coating and bonding machine of claim 1, wherein: The baffle (1) is fixedly connected with a plurality of bases (3) at the bottom.