Miniature hot melt adhesive coating equipment

Abstract

The utility model provides miniature hot melt adhesive coating equipment, which relates to the technical field of coating equipment and comprises a fixing frame, a coating box, an adhesive storage tank, an adjusting limit ring and an adjusting piston block, the adhesive storage tank is fixedly mounted on the top surface of the fixing frame, a heater is mounted on the inner wall of the adhesive storage tank, the coating box is fixedly mounted on the fixing frame, and the adjusting limit ring is mounted on the fixing frame. A glue conveying pipe is installed between an inner cavity of the coating box and an inner cavity of the glue storage tank in a communicating mode, an electromagnetic valve is installed on the glue conveying pipe, a plurality of micro coating glue outlets are evenly formed in one side of the bottom face of the coating box, mounting plates are symmetrically and fixedly installed on the fixing frame, and a supporting roller is installed between the two mounting plates; adjusting limiting rings are symmetrically connected to the supporting rollers in a sleeving mode. According to the hot melt adhesive coating device, coating operation can be carried out according to needs, the use is more flexible, the application range is wider, the hot melt adhesive is more uniformly coated on the surface of a base material by utilizing the coating scraper, the coating uniformity and the coating quality are improved, and the practicability is stronger.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a micro hot melt adhesive coating device. Background Technology

[0002] Hot melt adhesive is a type of plastic adhesive whose physical state changes with temperature within a certain temperature range, while its chemical properties remain unchanged. It is non-toxic and odorless, and is an environmentally friendly chemical product. It can bond dissimilar materials such as plastics, metals, wood, fabrics, and ceramics. In particular, hot melt adhesive coating equipment is often used in the fabric production process to uniformly coat the hot melt adhesive.

[0003] The prior art discloses a hot melt adhesive composite coating machine with application number CN202420630169.4. This utility model uses a coating roller to dip into the hot melt adhesive storage box to achieve the purpose of coating the substrate surface with hot melt adhesive. It uses a wear-resistant scraper and a smoothing block to remove excess hot melt adhesive on the coating roller. This hot melt adhesive coating method cannot be coated on demand, and the wear-resistant scraper can easily affect the coating quality and uniformity of the hot melt adhesive during use. Its practicality is relatively limited. In view of the shortcomings of this utility model, those skilled in the art have proposed a micro hot melt adhesive coating device.

[0004] To address this issue, a miniature hot melt adhesive coating device is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a micro hot melt adhesive coating device, comprising a fixed frame, a coating box, an adhesive storage tank, an adjusting limit ring, and an adjusting piston block. The adhesive storage tank is fixedly installed on the top surface of the fixed frame, and a heater is installed on the inner wall of the adhesive storage tank. The coating box is fixedly installed on the fixed frame, and an adhesive delivery pipe is installed connecting the inner cavity of the coating box and the inner cavity of the adhesive storage tank. A solenoid valve is installed on the adhesive delivery pipe. Several micro coating outlets are evenly installed on one side of the bottom surface of the coating box. Mounting plates are symmetrically fixedly installed on the fixed frame. Support rollers are installed between the mounting plates, and adjusting limit rings are symmetrically sleeved on the support rollers. Connecting sleeves are symmetrically fixedly installed on both sides of the coating box, and U-shaped connecting slide rods are sleeved inside the connecting sleeves. An adjusting piston block is fixedly installed at one end of the U-shaped connecting slide rod in the inner cavity of the coating box, and the other end of the U-shaped connecting slide rod is fixedly connected to the side wall of the adjusting limit ring. An adjusting bidirectional screw is installed between the two mounting plates, and screw sleeves are symmetrically fixedly installed on the two adjusting limit rings, and the screw sleeves cooperate with the adjusting bidirectional screw. A coating scraper is fixedly installed between the two mounting plates.

[0007] Furthermore, a mounting bracket is fixedly installed on the top surface of the fixed frame, and a pushing hydraulic cylinder is installed in the center of the top surface of the mounting bracket, and a pushing pressure plate is connected to the output end of the pushing hydraulic cylinder.

[0008] Furthermore, an adjusting hand crank is fixedly installed at one end of the adjusting bidirectional lead screw.

[0009] Furthermore, the two adjusting limit rings are symmetrically provided with clearance grooves.

[0010] Furthermore, a control panel is installed on the fixing frame, and the control panel is electrically connected to the pusher hydraulic cylinder, heater and solenoid valve.

[0011] Furthermore, the central axis of the support roller and the adjusting limit ring are on the same straight line.

[0012] Furthermore, the micro-coating nozzle is located on one side directly above the coating scraper.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. This utility model includes a fixed frame, a coating box, a glue storage tank, an adjusting limit ring, and an adjusting piston block. A mounting bracket is fixedly installed on the top surface of the fixed frame, and a pushing hydraulic cylinder is installed in the center of the top surface of the mounting bracket. A pushing pressure plate is connected to the output end of the pushing hydraulic cylinder. A glue storage tank is fixedly installed on the top surface of the fixed frame, and a heater is installed on the inner wall of the glue storage tank. By adding raw materials into the glue storage tank, the heater can heat them to a molten state. A coating box is fixedly installed on the fixed frame, and a glue delivery pipe is installed connecting the inner cavity of the coating box and the inner cavity of the glue storage tank. An electromagnetic valve is installed on the glue delivery pipe. The coating box has several micro-coating nozzles evenly installed on one side of its bottom surface. A mounting plate is symmetrically fixed on a fixed frame, with a support roller installed between the two mounting plates. Adjusting limit rings are symmetrically fitted onto the support rollers. Connecting sleeves are symmetrically fixed on both sides of the coating box, with U-shaped connecting rods fitted inside each sleeve. An adjusting piston block is fixedly installed at one end of the U-shaped connecting rod within the coating box cavity, and the other end of the U-shaped connecting rod is fixedly connected to the side wall of the adjusting limit rings. An adjusting bidirectional screw is installed between the two mounting plates, with an adjusting handle fixedly installed at one end of the adjusting bidirectional screw. The hand crank has two symmetrically fixed lead screw sleeves on its two adjusting limit rings, which cooperate with the adjusting bidirectional lead screw. A coating scraper is fixed between the two mounting plates. The two adjusting limit rings have symmetrical clearance grooves. In use, the user passes the substrate to be coated with hot melt adhesive between the support roller and the coating scraper. Then, according to the width of the substrate, the user can adjust the hand crank to rotate the adjusting bidirectional lead screw. As the adjusting bidirectional lead screw rotates, it causes the two adjusting limit rings to move relative to each other along the support roller until the two adjusting limit rings abut against both ends of the substrate. At this point, the adjusting piston... As the block moves with the adjusting limit ring, the total length of the available micro-coating nozzles corresponds to the width of the substrate, allowing for coating operations to be performed as needed. This makes the application more flexible and applicable to a wider range of situations. At this time, the user opens the solenoid valve and starts the pusher hydraulic cylinder through the control panel, which causes the pusher plate to introduce the hot melt adhesive in the glue storage tank into the inner cavity of the coating box through the glue delivery pipe, and finally discharge it onto the surface of the substrate through the available micro-coating nozzles. As the substrate moves forward along the support roller, the coating scraper can be used to coat the hot melt adhesive more evenly on the surface of the substrate, improving the coating uniformity and coating quality, and making it more practical.

[0015] 2. This utility model is equipped with a coating box and micro coating outlets. As described above, hot melt adhesive is evenly discharged onto the substrate surface through several micro coating outlets. The diameter of the micro coating outlets is small, which makes the molten adhesive discharge more uniform and delicate. The dispensing speed can be adjusted by the descent and pressing speed of the pusher plate. After the hot melt adhesive coating process is completed, the user can close the solenoid valve and then drive the adjusting double-sided screw to rotate by adjusting the hand crank. This will cause the two adjusting piston blocks to move relative to each other along the inner cavity of the coating box until the two adjusting piston blocks abut against each other, thus completely squeezing out the residual hot melt adhesive in the coating box. This prevents the residual hot melt adhesive from solidifying in the inner cavity of the coating box and affecting the next use. Cleaning and maintenance are more convenient, and the practicality is stronger. Attached Figure Description

[0016] Figure 1 A front view of a miniature hot melt adhesive coating device provided by this utility model;

[0017] Figure 2 A top view of the coating adjustment box of a miniature hot melt adhesive coating device provided by this utility model;

[0018] Figure 3 Provided by this utility model Figure 1 Enlarged view of point A;

[0019] Figure 4 Provided by this utility model Figure 1 Enlarged view of point B;

[0020] Figure 5 A three-dimensional view of the adjustment limit ring of a miniature hot melt adhesive coating device provided by this utility model.

[0021] Legend:

[0022] 1. Fixed frame; 2. Adjusting bidirectional lead screw; 3. Support roller; 4. Adjusting limit ring; 5. Mounting plate; 6. Adjusting hand crank; 7. U-shaped connecting slide bar; 8. Coating box; 9. Glue delivery pipe; 10. Glue storage tank; 11. Mounting frame; 12. Pushing pressure plate; 13. Pushing hydraulic cylinder; 14. Heater; 15. Solenoid valve; 16. Adjusting piston block; 17. Connecting sleeve; 18. Micro coating outlet; 19. Coating scraper; 20. Lead screw sleeve; 21. Clearance chute. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a micro hot melt adhesive coating device, comprising: a fixed frame 1, a coating box 8, an adhesive storage tank 10, an adjusting limit ring 4, and an adjusting piston block 16. The adhesive storage tank 10 is fixedly installed on the top surface of the fixed frame 1, and a heater 14 is installed on the inner wall of the adhesive storage tank 10. The coating box 8 is fixedly installed on the fixed frame 1, and an adhesive delivery pipe 9 is installed between the inner cavity of the coating box 8 and the inner cavity of the adhesive storage tank 10. A solenoid valve 15 is installed on the adhesive delivery pipe 9. Several micro-coating outlets 18 are evenly installed on one side of the bottom surface of the coating box 8. Mounting plates 5 are symmetrically fixedly installed on the fixed frame 1. A support roller 3 is installed between the two mounting plates 5, and an adjusting limit ring 4 is symmetrically sleeved on the support roller 3. A connecting sleeve 17 is symmetrically fixedly installed on both sides of the coating box 8, and a U-shaped connecting rod 7 is sleeved inside the connecting sleeve 17. An adjusting piston block 16 is fixedly installed at one end of the U-shaped connecting rod 7 in the inner cavity of the coating box 8, and the other end of the U-shaped connecting rod 7 is fixedly connected to the side wall of the adjusting limit ring 4. An adjusting bidirectional screw 2 is installed between the two mounting plates 5, and a screw sleeve 20 is symmetrically fixedly installed on the two adjusting limit rings 4, and the screw sleeve 20 cooperates with the adjusting bidirectional screw 2. A coating scraper 19 is fixedly installed between the two mounting plates 5.

[0025] Specifically, coating operations can be performed as needed, making it more flexible and applicable to a wider range of applications. Furthermore, the coating scraper 19 ensures that the hot melt adhesive is applied more evenly to the substrate surface, improving coating uniformity and quality, and enhancing its practicality.

[0026] In one embodiment, a mounting frame 11 is fixedly installed on the top surface of the fixed frame 1, and a pushing hydraulic cylinder 13 is installed in the center of the top surface of the mounting frame 11, and a pushing pressure plate 12 is connected to the output end of the pushing hydraulic cylinder 13.

[0027] Specifically, such as Figure 1 As shown: the dispensing speed can be adjusted by the downward pressing speed of the pusher plate 12.

[0028] In one embodiment, an adjusting hand crank 6 is fixedly installed at one end of the adjusting bidirectional lead screw 2.

[0029] Specifically, such as Figure 1 As shown: The user can easily adjust the left and right sides of the bidirectional lead screw 2.

[0030] In one embodiment, two adjusting limit rings 4 are symmetrically provided with clearance grooves 21.

[0031] Specifically, such as Figure 3 and 5 As shown: The relief groove 21 is used to ensure that the coating scraper 19 does not affect the movement of the adjusting limit ring 4.

[0032] In one embodiment, a control panel is mounted on the mounting frame 1, and the control panel is electrically connected to the pusher hydraulic cylinder 13, the heater 14, and the solenoid valve 15.

[0033] Specifically: The control circuit of the control panel can be implemented by simple programming by those skilled in the art. It is common knowledge in the field. It is only used and not modified. Therefore, the control method and circuit connection will not be described in detail. The control panel is connected to an external power source through wires for convenient power supply.

[0034] In one embodiment, the central axis of the support roller 3 and the adjusting limit ring 4 are on the same straight line.

[0035] In one embodiment, the micro coating nozzle 18 is located on the side directly above the coating scraper 19.

[0036] Working principle:

[0037] This utility model includes a fixed frame 1, a coating box 8, a glue storage tank 10, an adjusting limit ring 4, and an adjusting piston block 16. A mounting frame 11 is fixedly installed on the top surface of the fixed frame 1, and a pushing hydraulic cylinder 13 is installed at the center of the top surface of the mounting frame 11. A pushing pressure plate 12 is connected to the output end of the pushing hydraulic cylinder 13. The glue storage tank 10 is fixedly installed on the top surface of the fixed frame 1, and a heater 14 is installed on the inner wall of the glue storage tank 10. By adding raw materials into the glue storage tank 10, the heater 14 can heat them to a molten state. The coating box 8 is fixedly installed on the fixed frame 1, and a glue delivery pipe 9 is installed between the inner cavity of the coating box 8 and the inner cavity of the glue storage tank 10. A solenoid valve 15 is installed on the glue delivery pipe 9. The bottom surface of the coating box 8 is... A plurality of micro-coating nozzles 18 are evenly installed. Mounting plates 5 are symmetrically fixedly mounted on a fixed frame 1. Support rollers 3 are installed between two mounting plates 5, and adjusting limit rings 4 are symmetrically sleeved on the support rollers 3. Connecting sleeves 17 are symmetrically fixedly mounted on both sides of the coating box 8, and U-shaped connecting rods 7 are sleeved inside the connecting sleeves 17. An adjusting piston block 16 is fixedly mounted at one end of the U-shaped connecting rod 7 within the coating box 8, and the other end of the U-shaped connecting rod 7 is fixedly connected to the side wall of the adjusting limit ring 4. An adjusting bidirectional screw 2 is installed between the two mounting plates 5, and an adjusting hand crank 6 is fixedly mounted at one end of the adjusting bidirectional screw 2. Screw sleeves 20 are symmetrically fixedly mounted on the two adjusting limit rings 4, and the screw sleeves 20 are connected to the adjusting... The bidirectional lead screw 2 is used in conjunction with the two mounting plates 5, and a coating scraper 19 is fixedly installed between them. Two adjusting limit rings 4 are symmetrically provided with clearance grooves 21. In use, the user can pass the substrate to be coated with hot melt adhesive through the support roller 3 and the coating scraper 19. Then, according to the width of the substrate, the user can adjust the hand crank 6 to drive the bidirectional lead screw 2 to rotate. As the bidirectional lead screw 2 rotates, it drives the two adjusting limit rings 4 to move relative to each other along the support roller 3 until the two adjusting limit rings 4 abut against both ends of the substrate. At this time, the adjusting piston block 16 moves with the adjusting limit rings 4, so that the total length of the usable micro-coating nozzle 18 corresponds to the width of the substrate, allowing for coating operations as needed. This makes the application more flexible and has a wider range of applications. In this case, the user opens the solenoid valve 15 and starts the pusher hydraulic cylinder 13 via the control panel. This causes the pusher plate 12 to guide the hot melt adhesive in the glue storage tank 10 into the inner cavity of the coating box 8 through the glue delivery pipe 9. Finally, the adhesive is discharged onto the substrate surface through the usable micro coating outlet 18. As the substrate moves forward along the support roller 3, the coating scraper 19 can be used to coat the hot melt adhesive more evenly on the substrate surface, improving coating uniformity and coating quality, and enhancing practicality. In addition, this utility model is equipped with a coating box 8 and micro coating outlets 18. As mentioned above, the hot melt adhesive is evenly discharged onto the substrate surface through several micro coating outlets 18. The diameter of the micro coating outlets 18 is very small, which makes the molten adhesive discharge more uniform and delicate.The dispensing speed can be adjusted by the descent and pressing speed of the pusher plate 12. After the hot melt adhesive coating process is completed, the user can close the solenoid valve 15 and then rotate the adjusting double-sided screw 2 by adjusting the hand crank 6. This will cause the two adjusting piston blocks 16 to move relative to each other along the inner cavity of the coating box 8 until the two adjusting piston blocks 16 abut against each other, thus completely squeezing out the residual hot melt adhesive in the coating box 8. This prevents the residual hot melt adhesive from solidifying in the inner cavity of the coating box 8 and affecting the next use, making cleaning and maintenance more convenient and improving practicality.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A micro hot melt adhesive coating device, comprising a fixing frame (1), a coating box (8), an adhesive storage tank (10), an adjusting limiting ring (4), and an adjusting piston block (16), characterized in that, A glue storage tank (10) is fixedly installed on the top surface of the fixed frame (1), and a heater (14) is installed on the inner wall of the glue storage tank (10). A coating box (8) is fixedly installed on the fixed frame (1), and a glue delivery pipe (9) is installed between the inner cavity of the coating box (8) and the inner cavity of the glue storage tank (10). A solenoid valve (15) is installed on the glue delivery pipe (9). Several micro coating outlets (18) are evenly installed on one side of the bottom surface of the coating box (8). Mounting plates (5) are symmetrically fixedly installed on the fixed frame (1). A support roller (3) is installed between two mounting plates (5), and an adjusting limit ring (4) is symmetrically sleeved on the support roller (3). The coating box (8) is symmetrically fixedly installed with connecting sleeves (17) on both sides, and a U-shaped connecting rod (7) is sleeved inside the connecting sleeve (17). An adjusting piston block (16) is fixedly installed at one end of the U-shaped connecting rod (7) in the inner cavity of the coating box (8), and the other end of the U-shaped connecting rod (7) is fixedly connected to the side wall of the adjusting limit ring (4). An adjusting bidirectional screw (2) is installed between the two mounting plates (5). Screw sleeves (20) are symmetrically fixedly installed on the two adjusting limit rings (4), and the screw sleeves (20) cooperate with the adjusting bidirectional screw (2). A coating scraper (19) is fixedly installed between the two mounting plates (5).

2. The micro hot melt adhesive coating equipment according to claim 1, characterized in that: The mounting frame (1) is fixedly mounted on the top surface of the fixed frame (1), and a pusher hydraulic cylinder (13) is mounted in the center of the top surface of the mounting frame (11), and a pusher pressure plate (12) is connected to the output end of the pusher hydraulic cylinder (13).

3. The micro hot melt adhesive coating equipment according to claim 1, characterized in that: One end of the adjusting bidirectional lead screw (2) is fixedly equipped with an adjusting hand crank (6).

4. The micro hot melt adhesive coating equipment according to claim 1, characterized in that: The two adjusting limit rings (4) are symmetrically provided with clearance grooves (21).

5. The micro hot melt adhesive coating equipment according to claim 1, characterized in that: The control panel is installed on the fixed frame (1), and the control panel is electrically connected to the pusher hydraulic cylinder (13), heater (14) and solenoid valve (15).

6. The micro hot melt adhesive coating equipment according to claim 1, characterized in that: The central axis of the support roller (3) and the adjusting limit ring (4) are on the same straight line.

7. The micro hot melt adhesive coating equipment according to claim 1, characterized in that: The micro coating nozzle (18) is located on one side directly above the coating scraper (19).

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