hot melt adhesive metering nozzle for sealing the edges of composite film

Abstract

This utility model relates to the field of composite film processing technology, specifically a hot melt adhesive metering nozzle for edge sealing of composite films. It includes a coating machine and an adhesive application assembly. The adhesive application assembly includes a mounting frame, on one side of the top of which a servo motor is fixedly mounted. The drive end of the servo motor passes through the mounting frame and extends into its interior. An adjusting screw is fixedly mounted on the drive end of the servo motor. This hot melt adhesive metering nozzle for edge sealing of composite films automatically adjusts the nozzle plate height through the coordinated use of the coating machine, adhesive application assembly, mounting frame, nozzle plate, servo motor, adjusting screw, fixed frame, limit rod, connecting pipe, adhesive pump connector, and scale lines. Utilizing the servo motor and adjusting screw transmission, combined with the sliding relationship of the limit rod, it saves time and manpower compared to traditional manual operation, reducing costs. The scale lines on the limit rod can precisely control the height adjustment, ensuring accurate adhesive coating thickness.

Description

Technical Field

[0001] This utility model relates to the field of composite film processing technology, specifically a hot melt adhesive metering spray nozzle for edge sealing of composite films. Background Technology

[0002] In the production and processing of composite films, in order to ensure the sealing and durability of the composite film, its edges need to be sealed, which is usually done by coating machine.

[0003] Chinese Patent Publication No. CN216573809U discloses a coating machine with adjustable adhesive thickness. It includes a coating machine body with a transmission roller assembly internally connected to it, and a rewinding mechanism fixedly connected to one end of the coating machine body. This utility model's adjustable adhesive thickness coating machine, by adding a spray nozzle adjustment mechanism, allows for adjustment of the spray nozzle according to the required adhesive thickness of the substrate, significantly improving the applicability of the coating machine. Furthermore, by adding a directional open-type drying mechanism, it facilitates directional drying of the coated substrate inside the drying oven, greatly improving the drying efficiency and effectively preventing heat loss.

[0004] In practical applications, the related technologies involved in this device have certain shortcomings. The height adjustment of the movable nozzle plate is done manually with the aid of tools. This method is not only relatively complex and requires considerable manpower and time, but also makes it difficult to achieve precise control of the height adjustment, which can easily lead to deviations in adjustment accuracy and thus affect the accuracy of the adhesive coating thickness. This causes many inconveniences in actual use. Therefore, it is necessary to provide a hot melt adhesive metering spray nozzle for sealing the edge of the composite film to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a hot melt adhesive metering nozzle for sealing the edges of composite films, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A hot melt adhesive metering nozzle for edge sealing of composite films, comprising: A coating machine and an adhesive application assembly, wherein the adhesive application assembly includes a mounting frame, a servo motor is fixedly mounted on one side of the top of the mounting frame, the drive end of the servo motor passes through the mounting frame and extends into the interior of the mounting frame, an adjusting screw is fixedly mounted on the drive end of the servo motor, a fixed frame is sleeved on the outer wall of the adjusting screw, a nozzle plate is fixedly mounted on the bottom of the fixed frame, and a nozzle head is provided at the bottom of the nozzle plate; Limiting rods are fixedly installed on the front and rear sides of the top of the nozzle plate, and the top of the limiting rods passes through the mounting frame and extends to the top of the mounting frame. The top of the coating machine is provided with a mounting port that is compatible with the mounting frame.

[0007] Preferably, the top of the mounting bracket has grooves on both the front and rear sides, and the inner walls of the grooves have sliding grooves on both sides. A slider is slidably mounted on the sliding groove, and a positioning plate is fixedly mounted between the two sliders. The positioning plate is slidably inserted into the groove. A symmetrically distributed spring is fixedly mounted between the side of the positioning plate inside the groove and the inner wall of the groove. A symmetrically distributed positioning groove is provided on the inner wall of the mounting opening, and the positioning groove engages with the positioning plate.

[0008] Preferably, a handle is fixedly installed on the top of the positioning plate.

[0009] Preferably, the outer wall of the limiting rod is provided with scale lines.

[0010] Preferably, a glue pump connector is fixedly installed on the other side of the top of the mounting bracket, and a connecting pipe is fixedly connected between the glue pump connector and the nozzle plate.

[0011] Preferably, a stop is fixedly installed at the bottom end of the adjusting screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model utilizes a coating machine, adhesive application assembly, mounting bracket, nozzle plate, servo motor, adjusting screw, fixing bracket, limit rod, connecting pipe, adhesive pump connector, and scale lines to automatically adjust the nozzle plate height. By employing the servo motor and adjusting screw transmission, combined with the sliding relationship of the limit rod, it saves time and manpower compared to traditional manual operation, reducing costs. The scale lines on the limit rod precisely control the height adjustment, ensuring accurate adhesive coating thickness.

[0013] 2. This utility model utilizes the combined use of an installation port, positioning groove, spring, recess, handle, slide, and slider to form a quick-release structure, making the assembly and disassembly of the adhesive coating assembly on the coating machine extremely convenient. Operation can be completed quickly by pulling the handle. The slider limit ensures stable movement of the positioning plate, and the spring assists in the positioning plate's reset. This not only improves assembly and disassembly efficiency but also facilitates subsequent maintenance of the adhesive coating assembly, making it highly practical. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom view of the adhesive coating component in this utility model. Figure 3 This is a partial cross-sectional view of the adhesive coating component in this utility model; Figure 4This is a schematic diagram of the connection structure between the adjusting screw and the fixing frame in this utility model.

[0015] In the diagram: 1. Coating machine; 2. Glue application assembly; 3. Mounting bracket; 4. Mounting port; 5. Positioning groove; 6. Nozzle plate; 7. Servo motor; 8. Adjusting screw; 9. Fixing bracket; 10. Limiting rod; 11. Connecting pipe; 12. Glue pump connector; 13. Spring; 14. Groove; 15. Handle; 16. Scale line; 17. Positioning plate; 18. Stop block; 19. Slide groove; 20. Slider. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-4 One embodiment provided by this utility model: A hot melt adhesive metering nozzle for edge sealing of composite films, comprising: The coating machine 1 and the adhesive application assembly 2 are included. The adhesive application assembly 2 includes a mounting frame 3. A servo motor 7 is fixedly installed on one side of the top of the mounting frame 3. The drive end of the servo motor 7 passes through the mounting frame 3 and extends into the interior of the mounting frame 3. An adjusting screw 8 is fixedly installed on the drive end of the servo motor 7. A fixing frame 9 is sleeved on the outer wall of the adjusting screw 8. A nozzle plate 6 is fixedly installed at the bottom of the fixing frame 9. A nozzle is provided at the bottom of the nozzle plate 6. Limiting rods 10 are fixedly installed on the front and rear sides of the top of the nozzle plate 6. The top of the limiting rods 10 passes through the mounting frame 3 and extends to the top of the mounting frame 3. The top of the coating machine 1 is provided with a mounting port 4 that is compatible with the mounting bracket 3.

[0018] The mounting bracket 3 has grooves 14 on both the front and rear sides of its top. The inner walls of the grooves 14 have sliding grooves 19 on both sides. Sliding blocks 20 are slidably mounted on the sliding grooves 19. A positioning plate 17 is fixedly mounted between the two sliding blocks 20. The positioning plate 17 is slidably inserted into the groove 14. A symmetrically distributed spring 13 is fixedly mounted between the side of the positioning plate 17 located inside the groove 14 and the inner wall of the groove 14. The inner wall of the mounting port 4 has symmetrically distributed positioning grooves 5. The positioning grooves 5 are engaged with the positioning plate 17, which facilitates the installation and replacement of the adhesive application component 2 and makes the operation simple.

[0019] In one embodiment, a handle 15 is fixedly installed on the top of the positioning plate 17, which facilitates the pulling of the positioning plate 17 to disassemble and assemble the adhesive application component 2. Several anti-slip rings are provided on the outer wall of the handle 15 to increase friction, prevent slippage during operation, and improve ease of use and safety.

[0020] In one preferred embodiment, the outer wall of the limiting rod 10 is provided with a scale line 16 to facilitate precise adjustment of the height of the nozzle plate 6 and ensure accurate coating thickness. The mounting frame 3 is provided with sliding holes corresponding to the position and number of the limiting rod 10, and the mounting frame 3 is slidably connected to the limiting rod 10 through the sliding holes to ensure stable vertical movement of the nozzle plate 6.

[0021] In one embodiment, a glue pump connector 12 is fixedly installed on the other side of the top of the mounting bracket 3. A connecting pipe 11 is fixedly connected between the glue pump connector 12 and the nozzle plate 6. Installing the glue pump connector 12 facilitates the delivery of hot melt glue by external glue dispensing equipment. The connecting pipe 11 of the elastic telescopic hose can extend and retract with the height of the nozzle plate 6 to ensure glue delivery without affecting the adjustment.

[0022] In one preferred embodiment, a stop 18 is fixedly installed at the bottom end of the adjusting screw 8 to prevent the fixed frame 9 from moving excessively. The fixed frame 9 has a threaded hole that matches the adjusting screw 8, and the fixed frame 9 is threadedly connected to the adjusting screw 8 through the threaded hole, so that a stable position adjustment function can be achieved by using thread transmission.

[0023] The working principle of this utility model is as follows: All electrical components mentioned herein are connected to an external main controller and 220V AC mains power. The main controller can be a computer or other conventionally known control device. Parts not mentioned in this device are the same as or can be implemented using existing technology. During use, when the height of the nozzle plate 6 needs to be adjusted, the control servo motor 7 is activated. Its drive end rotates the adjusting screw 8. Based on the threaded transmission principle between the adjusting screw 8 and the fixed frame 9, and utilizing the sliding relationship between the nozzle plate 6 and the mounting frame 3 via the limiting rod 10, the nozzle plate 6 can move vertically stably, thereby achieving automatic height adjustment. Compared to traditional manual operation using tools, this automatic adjustment method significantly saves time and manpower, effectively reducing labor and time costs. Furthermore, by setting a scale line 16 on the limiting rod 10, the height adjustment of the nozzle plate 6 can be precisely controlled, ensuring the accuracy of the colloid coating thickness. After determining the height of the nozzle plate 6, the glue pump connector 12 is connected to the glue injection equipment in advance. The glue injection equipment injects hot melt glue into the connecting pipe 11 through the glue pump connector 12, and then transports it to the inside of the nozzle plate 6 through the connecting pipe 11. Finally, it is sprayed out through the nozzle at the bottom of the nozzle plate 6 to perform glue application on the edge of the composite film conveyed inside the coating machine 1.

[0024] When assembling or disassembling the adhesive coating assembly 2 at the mounting port 4 of the coating machine 1, the handle 15 can be directly manipulated to slide the positioning plate 17 into the groove 14. During this process, the movement of the positioning plate 17 causes the slider 20 to slide on the slide groove 19. The limiting effect of the slider 20 on the positioning plate 17 ensures the stability of the positioning plate 17's movement within the groove 14. As the positioning plate 17 moves into the groove 14, it applies a compressive force to the spring 13. At the same time, the part of the positioning plate 17 that was originally engaged in the positioning groove 5 will disengage from the positioning groove 5. At this point, the fixing effect of the mounting bracket 3 at the mounting port 4 becomes ineffective, and the operator can directly lift the entire adhesive coating assembly 2 upwards using the handle 15, thereby completing the assembly or disassembly of the adhesive coating assembly 2 on the coating machine 1. Because the adhesive coating assembly 2 is equipped with a quick-release structure, it greatly facilitates the rapid assembly or disassembly of the adhesive coating assembly 2 on the coating machine 1, providing convenience for the subsequent maintenance of the adhesive coating assembly 2 and demonstrating high practicality.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hot melt adhesive metering nozzle for sealing the edges of a composite film, characterized in that... The system includes a coating machine and an adhesive application assembly. The adhesive application assembly includes a mounting frame. A servo motor is fixedly mounted on one side of the top of the mounting frame. The drive end of the servo motor passes through the mounting frame and extends into its interior. An adjusting screw is fixedly mounted on the drive end of the servo motor. A fixing frame is fitted onto the outer wall of the adjusting screw. A nozzle plate is fixedly mounted on the bottom of the fixing frame. A nozzle head is provided at the bottom of the nozzle plate. Limiting rods are fixedly mounted on the front and rear sides of the top of the nozzle plate. The top of the limiting rods passes through the mounting frame and extends above the top of the mounting frame. The top of the coating machine is provided with a mounting port that matches the mounting frame.

2. The hot melt adhesive metering nozzle for edge sealing of a composite film according to claim 1, characterized in that: The mounting bracket has grooves on both the front and rear sides of its top. Sliding grooves are formed on both sides of the inner wall of the grooves. Sliding blocks are slidably mounted on the sliding grooves. A positioning plate is fixedly mounted between two sliding blocks. The positioning plate is slidably inserted into the groove. Symmetrically distributed springs are fixedly mounted between the side of the positioning plate inside the groove and the inner wall of the groove. Symmetrically distributed positioning slots are formed on the inner wall of the mounting opening. The positioning slots are engaged with the positioning plate.

3. The hot melt adhesive metering nozzle for edge sealing of a composite film according to claim 2, characterized in that: A handle is fixedly installed on the top of the positioning plate.

4. The hot melt adhesive metering nozzle for edge sealing of a composite film according to claim 1, characterized in that: The outer wall of the limiting rod is provided with scale lines.

5. The hot melt adhesive metering nozzle for edge sealing of a composite film according to claim 1, characterized in that: A glue pump connector is fixedly installed on the other side of the top of the mounting bracket, and a connecting pipe is fixedly connected between the glue pump connector and the nozzle plate.

6. The hot melt adhesive metering nozzle for edge sealing of a composite film according to claim 1, characterized in that: A stop block is fixedly installed at the bottom end of the adjusting screw.

Images