Adhesive dispensing equipment for hot melt adhesive
By using an automatic clamping assembly with a chain and slide rail structure and a motor-driven cleaning assembly, the problems of cumbersome operation and unstable fixation in existing hot melt adhesive dispensing equipment when dealing with different workpieces are solved. This achieves stable clamping of workpieces and automatic cleaning of the dispensing nozzle, improving dispensing accuracy and efficiency.
Patent Information
- Application Number
- CN202520763182.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-07
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Existing hot melt adhesive dispensing equipment requires frequent manual adjustment of the fixture position when dealing with workpieces of different sizes and shapes. This operation is cumbersome and can easily lead to the workpiece not being firmly fixed, affecting dispensing accuracy and efficiency.
The system employs a chain and slide rail structure with an automatic clamping assembly. The design of pull rings and springs enables automatic clamping of the workpiece. Combined with a motor-driven cleaning assembly, the system uses a wiping pad to automatically clean the dispensing nozzle, ensuring dispensing accuracy and efficiency.
It achieves stable fixation of workpieces of different sizes and shapes, avoids displacement during the dispensing process, ensures dispensing accuracy and equipment cleanliness, and improves production efficiency.
Smart Images
Figure CN224087185U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a point gumming equipment technical field especially relates to a kind of for hot melt adhesive point gumming equipment. BACKGROUND
[0002] In modern industrial production, hot melt adhesive dispensing equipment is widely used in electronics, packaging, automotive, furniture and many other fields. With the development trend of product refinement and diversification, higher requirements are placed on the precision and efficiency of hot melt adhesive dispensing. To ensure stable and accurate dispensing process, reliable tooling equipment is needed to fix the workpiece, ensuring accurate dispensing position and improving product quality and production efficiency.
[0003] The existing hot melt adhesive dispensing equipment relies on gear pumps or plunger pumps to extract hot melt adhesive from the glue tank and deliver it to the dispensing head through the pipeline. The dispensing head part generally uses air pressure to control the extrusion amount of the adhesive, and adjusts the air pressure to control the flow and speed of the dispensing. The overall operation of the equipment is driven by the motor and related transmission mechanism, which realizes the movement and positioning of the dispensing head above the workpiece to complete dispensing operations of different shapes and positions. When fixing the workpiece, traditional mechanical clamps or simple magnetic attraction methods are often used. When using mechanical clamps, they are usually fixed by manually tightening bolts or nuts and directly pressing the workpiece with the clamping surface of the clamp.
[0004] The existing hot melt adhesive dispensing equipment often needs to manually adjust the position of the clamp and replace different specifications of the clamp block when facing different sizes and shapes of workpieces. The operation process is tedious and time-consuming, which not only affects production efficiency, but also easily leads to unstable workpiece fixation due to human operation errors, resulting in displacement during dispensing, ultimately causing dispensing position deviation and affecting product quality. Therefore, a hot melt adhesive dispensing equipment is proposed to solve the above problems. SUMMARY
[0005] To make up for the above shortcomings, the utility model provides a hot melt adhesive dispensing equipment to improve the problem that when facing different sizes and shapes of workpieces, manual adjustment of the position of the clamp and replacement of different specifications of the clamp block are needed, and the workpiece is easily fixed unstable due to operation errors, resulting in displacement during dispensing.
[0006] To achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A hot melt adhesive dispensing device includes a workbench, a bracket fixedly connected to the side wall of the workbench, a chain provided on the upper surface of the bracket, a slide rail fixedly connected to the side wall of the chain, a dispensing nozzle slidably connected to one side wall of the slide rail, a placement platform provided on the upper surface of the workbench, a clamping assembly provided inside the placement platform, and a cleaning assembly provided at the bottom of the slide rail.
[0008] The clamping assembly includes a fixed plate and a clamping block. A rotating plate is rotatably connected inside the placement platform. A connecting plate is rotatably connected to the side wall of the rotating plate. One end of the connecting plate is rotatably connected to the lower surface of the fixed plate. The clamping block is fixedly connected to the upper surface of the fixed plate. A pull ring is fixedly connected to the lower surface of the fixed plate on one side. A slider is fixedly connected to the side wall of the fixed plate. A fixed block is fixedly connected inside the placement platform. A spring is provided on the side wall of the fixed block.
[0009] As a further description of the above technical solution:
[0010] The cleaning assembly includes a mounting plate and a wiping pad. The mounting plate has Velcro closures inside, and the wiping pad is attached to the inside of the mounting plate via the Velcro closures.
[0011] As a further description of the above technical solution:
[0012] The clamping block sidewall is slidably connected to the inside of the placement platform, the pull ring sidewall is slidably connected to the inside of the placement platform, the slider sidewall is slidably connected to the inside of the placement platform, one end of the spring is fixedly connected to the sidewall of the fixing block, and the other end of the spring is fixedly connected to the sidewall of the slider.
[0013] As a further description of the above technical solution:
[0014] A fixing frame is fixedly connected to the lower surface of the slide rail, a second slide rail is fixedly connected to the lower surface of the fixing frame, and a second slider is fixedly connected to the upper surface of the mounting plate. The second slider is slidably connected to the side wall of the mounting plate.
[0015] As a further description of the above technical solution:
[0016] A motor is fixedly connected to the lower surface of the fixed frame, and a crank is fixedly connected to the output end of the motor;
[0017] As a further description of the above technical solution:
[0018] A rocker arm is rotatably connected to the side wall of the crank, and a sliding block is rotatably connected to one end of the rocker arm;
[0019] As a further description of the above technical solution:
[0020] A connecting rod is fixedly connected to the lower surface of the fixed frame, and the sliding block is slidably connected to the side wall of the connecting rod.
[0021] As a further description of the above technical solution:
[0022] The sliding block sidewall is fixedly connected to the mounting plate sidewall.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, pulling the pull ring causes one side of the fixed plate to slide, which in turn causes the connecting plate to rotate. This rotation of the rotating plate then causes the other side of the connecting plate to rotate, pushing the other side of the fixed plate to slide. Subsequently, the elastic force generated by the spring contracts, causing the clamping blocks on both sides to clamp the workpiece, achieving a fixing effect. This solves the problem that some hot melt adhesive dispensing equipment requires frequent manual adjustment of the fixture position and replacement of clamping blocks of different specifications when dealing with workpieces of different sizes and shapes. The operation process is cumbersome and time-consuming, and the workpiece is prone to displacement during dispensing due to operational errors. The above structure improves the stability of the workpiece.
[0025] 2. In this utility model, the crank is driven by the motor to rotate, which causes the rocker arm to rotate and push the sliding block to slide, thereby pushing the mounting plate to slide. At the same time, the second slider slides on the second slide rail, thereby driving the wiping pad to wipe the nozzle of the dispensing nozzle, achieving the effect of automatic cleaning of the dispensing nozzle, ensuring the cleanliness of the dispensing nozzle and maintaining the dispensing accuracy. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a hot melt adhesive dispensing device proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the internal structure of a placement platform for a hot melt adhesive dispensing device according to the present invention.
[0028] Figure 3 This is a schematic diagram of the structure of a fixing frame for a hot melt adhesive dispensing equipment proposed in this utility model;
[0029] Figure 4 This is a schematic diagram of the structure of a mounting plate for a hot melt adhesive dispensing device proposed in this utility model.
[0030] Legend:
[0031] 1. Workbench; 2. Support; 3. Chain; 4. Slide rail one; 5. Dispensing nozzle; 6. Placement platform; 7. Rotating plate; 8. Connecting plate; 9. Fixing plate; 10. Clamping block; 11. Pull ring; 12. Slider one; 13. Fixing block; 14. Spring; 15. Fixing frame; 16. Connecting rod; 17. Sliding block; 18. Motor; 19. Crank; 20. Rocker arm; 21. Slide rail two; 22. Mounting plate; 23. Wiping pad; 24. Velcro; 25. Slider two. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1-2 This utility model provides an embodiment of a hot melt adhesive dispensing device, comprising a workbench 1, a support 2 fixedly connected to the side wall of the workbench 1, a chain 3 disposed on the upper surface of the support 2, a slide rail 4 fixedly connected to the side wall of the chain 3, a dispensing nozzle 5 slidably connected to the side wall of the slide rail 4, a placement platform 6 disposed on the upper surface of the workbench 1, a clamping assembly disposed inside the placement platform 6, and a cleaning assembly disposed at the bottom of the slide rail 4; the clamping assembly includes a fixed plate 9 and a clamping block 10, a rotating plate 7 rotatably connected inside the placement platform 6, a connecting plate 8 rotatably connected to the side wall of the rotating plate 7, one end of the connecting plate 8 rotatably connected to the lower surface of the fixed plate 9, the clamping block 10 fixedly connected to the upper surface of the fixed plate 9, and a pull ring 11 fixedly connected to the lower surface of one side of the fixed plate 9. Ring 11 is used to pull one side of the fixed plate 9, causing it to rotate one side of the connecting plate 8, thereby driving the other side of the connecting plate 8 to drive the other side of the fixed plate 9, achieving the clamping effect of the clamping blocks 10 on both sides. A slider 12 is fixedly connected to the side wall of the fixed plate 9. A fixed block 13 is fixedly connected inside the placement platform 6. A spring 14 is provided on the side wall of the fixed block 13. The side wall of the clamping block 10 is slidably connected inside the placement platform 6. The side wall of the pull ring 11 is slidably connected inside the placement platform 6. The side wall of the slider 12 is slidably connected inside the placement platform 6, which plays the role of assisting the fixed plate 9 to slide smoothly and also prevents the fixed plate 9 from shifting during the sliding process. One end of the spring 14 is fixedly connected to the side wall of the fixed block 13, and the other end of the spring 14 is fixedly connected to the side wall of the slider 12.
[0034] When the equipment is in operation, the chain 3 can stably drive the slide rail 4 to move. The slide rail 4 serves as the carrier for the horizontal movement of the dispensing nozzle 5. Its movement allows the dispensing nozzle 5 to change its horizontal position. The dispensing nozzle 5 is slidably connected to the side wall of the slide rail 4. This connection method gives the dispensing nozzle 5 the ability to slide freely along the slide rail 4, thereby enabling more precise adjustment of the dispensing position. The chain 3 and the slide rail 4 work together to move the dispensing nozzle 5 to the position on the workpiece where dispensing is required, providing positional assurance for hot melt adhesive dispensing operations. When fixing the workpiece, when the operator pulls the pull ring 11, it causes the fixing plate 9 to slide inside the placement table 6. The sliding of the fixing plate 9 changes its relative position to the connecting plate 8. Since one end of the connecting plate 8 is rotatably connected to the fixing plate 9, the other end... Since the fixed plate 9 is rotatably connected to the rotating plate 7, the sliding of the fixed plate 9 will cause the connecting plate 8 to rotate, which in turn will drive the rotating plate 7 to rotate inside the placement platform 6. When the rotating plate 7 rotates, the connecting plate 8 on this side will also rotate, which will push the fixed plate 9 on the other side to slide. At the same time, the slider 12 slides inside the placement platform 6. The spring 14 set on the side wall of the fixed block 13 is stretched during the sliding of the fixed plate 9 and stores elastic potential energy. When the pull ring 11 is released, the spring 14 begins to release the stored elastic potential energy, and the resulting elastic force contracts, causing the two fixed plates 9 to slide towards each other. At this time, the clamping block 10 fixed on the upper surface of the fixed plate 9 moves closer with the movement of the fixed plate 9 and finally clamps the workpiece, achieving the effect of fixing the workpiece. This effectively ensures that the workpiece will not be displaced during the dispensing process and provides a stable working foundation for precise dispensing.
[0035] Reference Figures 3-4 The cleaning components include a mounting plate 22 and a wiping pad 23. The wiping pad 23 is made of non-woven fabric, which has good water absorption and adsorption properties. It can effectively adsorb hot melt adhesive through the gaps between its fibers, and will not scratch the surface of the dispensing nozzle 5 during wiping, ensuring the integrity of the nozzle and the accuracy of subsequent dispensing. The mounting plate 22 has Velcro 24 inside, and the wiping pad 23 is attached to the inside of the mounting plate 22 through the Velcro 24. A fixing bracket 15 is fixedly connected to the lower surface of the slide rail 1 4, and a slide rail 21 is fixedly connected to the lower surface of the fixing bracket 15. A slider 25 is fixedly connected to the upper surface of the mounting plate 22. A motor 18 is fixedly connected to the lower surface of the mounting plate 22 and the mounting bracket 15. A crank 19 is fixedly connected to the output end of the motor 18. A rocker arm 20 is rotatably connected to the side wall of the crank 19. A sliding block 17 is rotatably connected to one end of the rocker arm 20. A connecting rod 16 is fixedly connected to the lower surface of the mounting bracket 15. The connecting rod 16 provides a track for the sliding block 17, ensuring that the sliding block 17 can only reciprocate along its axial direction, avoiding deviation, and ensuring the accuracy and stability of the cleaning action. The sliding block 17 is slidably connected to the side wall of the connecting rod 16, and the side wall of the sliding block 17 is fixedly connected to the side wall of the mounting plate 22.
[0036] When the dispensing nozzle 5 finishes dispensing and needs cleaning, the motor 18 is started, which in turn drives the crank 19 connected to it to rotate. The crank 19 makes a circular motion under the drive of the motor 18. This oscillation is further transmitted and converted through the rocker arm 20. One end of the rocker arm 20 is rotatably connected to the crank 19, and the other end is connected to the sliding block 17, converting the oscillation of the crank 19 into the reciprocating linear sliding of the sliding block 17 on the connecting rod 16. The second slider 25, which is fixedly connected to the upper surface of the mounting plate 22, is slidably connected to the side wall of the second slide rail 21. The second slide rail 21 limits the direction of movement of the mounting plate 22, which can only reciprocate along its length. Since the side wall of the sliding block 17 is fixedly connected to the side wall of the mounting plate 22, the reciprocating sliding of the sliding block 17 on the connecting rod 16 will drive the mounting plate 22 to reciprocate synchronously along the second slide rail 21 through a rigid connection. The wiping pad 23 passes through... The Velcro 24 is attached to the inside of the mounting plate 22. The Velcro 24 consists of a hook side and a loop side. When the two sides are attached together, they can generate a strong adhesive force, ensuring that the wiping pad 23 is firmly fixed to the mounting plate 22 and will not fall off during the reciprocating sliding of the mounting plate 22. The reciprocating sliding of the mounting plate 22 causes the wiping pad 23 to come into contact with the dispensing nozzle 5 and wipe it. When the wiping pad 23 comes into contact with the dispensing nozzle 5, it can effectively absorb and remove the residual hot melt adhesive on the dispensing nozzle 5, thereby cleaning the dispensing nozzle 5 and ensuring the accuracy and smoothness of its subsequent dispensing. After the wiping pad 23 has been used for a period of time, due to its absorption and wiping effect, a lot of hot melt adhesive will remain on the surface, affecting the cleaning effect. At this time, by tearing off the Velcro 24, the used wiping pad 23 can be easily removed and replaced with a new wiping pad 23 to continue to provide a guarantee for the cleaning of the dispensing nozzle 5.
[0037] Working Principle: When using this equipment, chain 3 drives slide rail 4 to move, thereby changing the horizontal position of dispensing nozzle 5. Dispensing nozzle 5 is slidably connected to the side wall of slide rail 4, allowing it to slide along slide rail 4 for precise adjustment of the dispensing position. The chain 3 and slide rail 4 work together to move dispensing nozzle 5 to the desired position on the workpiece for hot melt adhesive dispensing. When fixing the workpiece, firstly, pulling ring 11 causes fixing plate 9 to slide inside the placement table 6. The sliding of fixing plate 9 causes connecting plate 8 to rotate, which in turn causes rotating plate 7 to rotate inside the placement table 6. Connecting plate 8 is also rotatably connected to the other side of rotating plate 7. The rotation of rotating plate 7 causes connecting plate 8 on this side to rotate, pushing fixing plate 9 on the other side to slide. Simultaneously, slider 12, fixedly connected to the side wall of fixing plate 9, slides inside the placement table 6, stretching spring 14 on the side wall of fixing block 13. When pulling ring 11 is released, spring 14... The elastic contraction of the workpiece causes the two fixed plates 9 to slide towards each other, thus clamping the workpiece with the clamping block 10 fixed on the upper surface of the fixed plate 9, achieving the effect of fixing the workpiece and ensuring that the workpiece will not move during the dispensing process. When the dispensing nozzle 5 finishes dispensing and needs to be cleaned, the motor 18 is started, which drives the crank 19 to rotate. The rotation of the crank 19 is converted into the reciprocating sliding of the sliding block 17 on the connecting rod 16 through the rocker arm 20. The slider 25 fixedly connected to the upper surface of the mounting plate 22 is slidably connected to the slide rail 2. The side wall of the mounting plate 21 is fixedly connected to the side wall of the sliding block 17. Therefore, the reciprocating sliding of the sliding block 17 will drive the mounting plate 22 to reciprocate along the slide rail 21. The wiping pad 23 is attached to the inside of the mounting plate 22 by the Velcro 24. The reciprocating sliding of the mounting plate 22 causes the wiping pad 23 to contact the dispensing nozzle 5 and wipe it, thereby cleaning the hot melt adhesive remaining on the dispensing nozzle 5. After the wiping pad 23 has been used for a period of time, it can be easily replaced by tearing off the Velcro 24.
[0038] 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 adhesive dispensing device, comprising a worktable (1), characterized in that: The workbench (1) is fixedly connected to a support (2) on its side wall. A chain (3) is provided on the upper surface of the support (2). A slide rail (4) is fixedly connected to the side wall of the chain (3). A glue nozzle (5) is slidably connected to the side wall of the slide rail (4). A placement platform (6) is provided on the upper surface of the workbench (1). A clamping assembly is provided inside the placement platform (6). A cleaning assembly is provided at the bottom of the slide rail (4). The clamping assembly includes a fixed plate (9) and a clamping block (10). A rotating plate (7) is rotatably connected inside the placement platform (6). A connecting plate (8) is rotatably connected to the side wall of the rotating plate (7). One end of the connecting plate (8) is rotatably connected to the lower surface of the fixed plate (9). The clamping block (10) is fixedly connected to the upper surface of the fixed plate (9). A pull ring (11) is fixedly connected to the lower surface of one side of the fixed plate (9). A slider (12) is fixedly connected to the side wall of the fixed plate (9). A fixed block (13) is fixedly connected inside the placement platform (6). A spring (14) is provided on the side wall of the fixed block (13).
2. The hot melt adhesive dispensing equipment according to claim 1, characterized in that: The cleaning assembly includes a mounting plate (22) and a wiping pad (23). The mounting plate (22) has a Velcro strap (24) inside, and the wiping pad (23) is attached to the inside of the mounting plate (22) by the Velcro strap (24).
3. The hot melt adhesive dispensing equipment according to claim 1, characterized in that: The side wall of the clamping block (10) is slidably connected to the inside of the placement platform (6), the side wall of the pull ring (11) is slidably connected to the inside of the placement platform (6), the side wall of the slider one (12) is slidably connected to the inside of the placement platform (6), one end of the spring (14) is fixedly connected to the side wall of the fixing block (13), and the other end of the spring (14) is fixedly connected to the side wall of the slider one (12).
4. The hot melt adhesive dispensing equipment according to claim 2, characterized in that: A fixing frame (15) is fixedly connected to the lower surface of the slide rail (4), a slide rail (21) is fixedly connected to the lower surface of the fixing frame (15), a slider (25) is fixedly connected to the upper surface of the mounting plate (22), and the slider (25) is slidably connected to the side wall of the mounting plate (22).
5. A hot melt adhesive dispensing device according to claim 4, characterized in that: A motor (18) is fixedly connected to the lower surface of the fixed frame (15), and a crank (19) is fixedly connected to the output end of the motor (18).
6. A hot melt adhesive dispensing device according to claim 5, characterized in that: A rocker arm (20) is rotatably connected to the side wall of the crank (19), and a sliding block (17) is rotatably connected to one end of the rocker arm (20).
7. A hot melt adhesive dispensing device according to claim 6, characterized in that: A connecting rod (16) is fixedly connected to the lower surface of the fixed frame (15), and the sliding block (17) is slidably connected to the side wall of the connecting rod (16).
8. A hot melt adhesive dispensing device according to claim 7, characterized in that: The sliding block (17) is fixedly connected to the side wall of the mounting plate (22).