Polyurethane hot melt adhesive film coating equipment

Abstract

The utility model discloses polyurethane hot melt adhesive film coating equipment which comprises a processing table, supporting rods are fixedly arranged at the four corners of the lower end of the processing table, a fixing frame is fixedly arranged at the upper end of the processing table, a sliding groove is formed in the upper portion of the fixing frame, the sliding groove is of a penetrating structure, a lead screw is arranged in the sliding groove, and the lead screw is connected with the fixing frame. The two sides of the lead screw are rotationally connected with the inner wall of the sliding groove, the lead screw is sleeved with a moving seat, the moving seat and the sliding groove are in sliding limiting, the lower end of the moving seat extends to the outer portion of the sliding groove, a discharging assembly is fixedly arranged at the lower end of the moving seat, and mounting lug plates are fixedly arranged on the two sides of the outer portion of the discharging assembly; and a coating roller is arranged in the mounting lug plate and rotationally connected with the mounting lug plate, and the structure solves the problems that the coating quality of the glue solution is not good enough, and a base material is difficult to fix.

Description

Technical Field

[0001] This utility model relates to the field of adhesive coating technology, specifically to a polyurethane hot melt adhesive film coating device. Background Technology

[0002] Polyurethane hot melt adhesive film coating equipment is a professional device used to uniformly coat moisture-curing reactive polyurethane hot melt adhesive onto the surface of various substrates. The equipment typically consists of a heating system, an adhesive supply system, a coating head, a control system, and auxiliary devices. The heating system uses heat transfer oil circulation or pressure plate heating technology. The adhesive supply system is equipped with a gear pump or screw pump, which delivers the adhesive to the coating head through a heated throat. When the equipment is running, the adhesive is uniformly transferred to the substrate surface through precision rollers or wire mesh openings to form an adhesive film layer with controllable thickness.

[0003] For example, Chinese patent CN217369010U, entitled "A Coating Equipment for Polyurethane Hot Melt Adhesive Processing," includes a workbench. A support is fixedly connected to the top of the workbench. A glue tank is movably connected inside the support. A glue inlet cap is movably connected to the top of the glue tank. A glue outlet is opened inside the glue tank. An electric heating element is fixedly connected to the outer surface of the glue tank. A coating mechanism is movably connected to the bottom of the support. The coating mechanism includes a longitudinal rod. A longitudinal rod is fixedly connected to the bottom of the support. A connecting rod is movably connected to the bottom of the longitudinal rod. A drive motor is fixedly connected to the outer surface of the connecting rod. A lead screw is fixedly connected to the outer surface of the connecting rod. A slider is movably connected to the outer surface of the lead screw. A telescopic rod is fixedly connected to the bottom of the slider.

[0004] While the existing technologies can achieve adhesive coating, in practical use, the coating quality is not good enough. The adhesive is usually applied to the substrate surface by self-leveling and brushing, which makes it difficult to coat the substrate surface evenly, thus reducing the coating quality. On the other hand, it is difficult to fix the substrate. When the brush is rotated on the substrate surface, it will cause the substrate to shift, which will affect the adhesive coating. Therefore, it does not meet the current requirements. In this regard, we propose a polyurethane hot melt adhesive film coating equipment. Utility Model Content

[0005] The purpose of this invention is to provide a polyurethane hot melt adhesive film coating device to solve the problems mentioned in the background art, such as the poor coating quality of the adhesive liquid and the difficulty in fixing the substrate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a polyurethane hot melt adhesive film coating device, comprising a processing table, with support rods fixedly installed at the four corners of the lower end of the processing table, a fixed frame fixedly installed at the upper end of the processing table, a sliding groove provided inside the upper part of the fixed frame, the sliding groove having a through structure, a lead screw installed inside the sliding groove, both sides of the lead screw being rotatably connected to the inner wall of the sliding groove, a movable seat sleeved outside the lead screw, the movable seat slidingly limiting the sliding groove, and the lower end of the movable seat extending to the outside of the sliding groove, a discharge component fixedly installed at the lower end of the movable seat, mounting ear plates fixedly installed on both sides of the outer side of the discharge component, a coating roller installed inside the mounting ear plate, the coating roller being rotatably connected to the mounting ear plate.

[0007] Preferably, a liquid collection tank is provided at the center of the processing table, the inner wall of the liquid collection tank is inclined, and a first hydraulic telescopic device is fixedly provided on both sides and the front and rear ends of the upper end of the liquid collection tank. The first hydraulic telescopic devices are symmetrically arranged, and a coating table is fixedly provided at the upper end of the telescopic end of the first hydraulic telescopic device.

[0008] Preferably, a servo motor is fixedly installed above the outer side of the fixing frame, and the output shaft of the servo motor extends into the interior of the slide groove and is fixedly connected to the lead screw.

[0009] Preferably, a second hydraulic telescopic device is fixedly installed on both sides inside the coating table, the telescopic end of the second hydraulic telescopic device extends to the outside of the coating table, and a clamping plate is fixedly installed on one side of the telescopic end of the second hydraulic telescopic device.

[0010] Preferably, a rubber pad is fixedly provided on the side of the clamping plate near the coating table.

[0011] Preferably, a drain pipe is fixedly installed at the center of the lower end of the processing table, the drain pipe is connected to the collection tank, a base is fixedly installed between the support rods, and a collection box is installed at the upper end of the base, the collection box is positioned corresponding to the drain pipe.

[0012] Preferably, a telescopic pipe is fixedly installed at the rear end of the external part of the discharge component, and the telescopic pipe is connected to the pipe inside the discharge component.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model can uniformly coat the adhesive by means of a coating roller and a first hydraulic telescopic device. When coating the adhesive, the substrate has been fixed. First, the first hydraulic telescopic device is turned on so that the telescopic end of the first hydraulic telescopic device is extended. The coating table is moved to a suitable height by the extension of the telescopic end of the first hydraulic telescopic device. At this time, the servo motor is turned on and the lead screw is driven to rotate. The lead screw drives the moving seat to move inside the slide. At the same time, the discharge component and the mounting ear plate fixedly connected to the moving seat move together until the discharge component is moved to a suitable position. At this time, the adhesive enters the discharge component through the telescopic tube and flows to the surface of the substrate. At this time, the servo motor is turned on again so that the servo motor drives the discharge component and the coating roller to move together. The adhesive is uniformly coated on the surface of the substrate by the coating roller. At this time, the energizing direction of the servo motor is changed so that the coating roller moves back and forth on the surface of the substrate, thereby improving the coating quality of the adhesive.

[0015] (2) This utility model can fix the substrate on the coating table by means of the second hydraulic telescopic device and the clamping plate. Before applying the adhesive, the substrate is placed on the coating table. At this time, the operator bends the redundant parts on both sides of the substrate so that the two sides of the substrate contact the side wall of the coating table. Then the second hydraulic telescopic device is opened so that the telescopic end of the second hydraulic telescopic device retracts. The telescopic end of the second hydraulic telescopic device drives the clamping plate to move until the clamping plate is moved to the appropriate position. At this time, the rubber pad on the clamping plate contacts the substrate and causes compression, thus fixing the substrate and preventing the substrate from shifting position during coating, thereby improving the stability of substrate coating.

[0016] (3) This utility model can collect dripping waste glue in a centralized manner through a liquid collection tank and a collection box. When the glue is coated, the excess glue will drip from both sides of the substrate and fall into the liquid collection tank under the action of the coating roller. The glue flows down the slope of the liquid collection tank to the bottom of the tank. At this time, the glue is discharged from the liquid collection tank through the drain pipe and flows into the collection box until the coating operation of the substrate is completed. At this time, the operator uses tools to treat the glue in the collection box to avoid the dripping glue from polluting the operating environment, thereby improving the cleanliness of the coating environment. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a front view of the internal structure of this utility model;

[0019] Figure 3 This is a side view of the internal structure of this utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle.

[0021] In the diagram: 1. Processing table; 2. Support rod; 3. Base; 4. Collection box; 5. Liquid collection tank; 6. First hydraulic telescopic device; 7. Coating table; 8. Clamping plate; 9. Rubber pad; 10. Fixing frame; 11. Servo motor; 12. Slide groove; 13. Lead screw; 14. Moving seat; 15. Telescopic tube; 16. Mounting ear plate; 17. Coating roller; 18. Discharge assembly; 19. Second hydraulic telescopic device; 20. Drain pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 An embodiment of this utility model is provided: a polyurethane hot melt adhesive film coating equipment, including a processing table 1, support rods 2 are fixedly installed at the four corners of the lower end of the processing table 1, a fixed frame 10 is fixedly installed at the upper end of the processing table 1, and a telescopic tube 15 is fixedly installed at the rear end of the external part of the discharge component 18, and the telescopic tube 15 is connected to the pipe inside the discharge component 18.

[0024] Please see Figure 1 , Figure 2 and Figure 3 The upper part of the fixed frame 10 has a sliding groove 12, which is a through structure. A lead screw 13 is installed inside the sliding groove 12, with both sides of the lead screw 13 rotatably connected to the inner wall of the sliding groove 12. A movable seat 14 is sleeved on the outside of the lead screw 13, and the movable seat 14 slides and limits the sliding of the sliding groove 12. The lower end of the movable seat 14 extends to the outside of the sliding groove 12. A discharge assembly 18 is fixedly installed at the lower end of the movable seat 14. Mounting ear plates 16 are fixedly installed on both sides of the discharge assembly 18. A coating roller 17 is installed inside the mounting ear plate 16, and the coating roller 17 is rotatably connected to the mounting ear plate 16. A liquid collection tank 5 is provided at the center of the workbench 1. The inner wall of the liquid collection tank 5 is inclined. First hydraulic telescopic devices 6 are fixedly provided on both sides and front and rear ends of the upper end of the liquid collection tank 5. The first hydraulic telescopic devices 6 are symmetrically arranged. A coating table 7 is fixedly provided at the upper end of the telescopic end of the first hydraulic telescopic device 6. A servo motor 11 is fixedly provided above the outer side of the fixed frame 10. The output shaft of the servo motor 11 extends into the interior of the slide 12 and is fixedly connected to the lead screw 13, so as to facilitate the uniform coating of the adhesive by the coating roller 17. At the same time, the first hydraulic telescopic device 6 can adjust the coating table 7 to a suitable height.

[0025] Please see Figure 1 , Figure 2and Figure 4 A second hydraulic telescopic device 19 is fixedly installed on both sides inside the coating table 7. The telescopic end of the second hydraulic telescopic device 19 extends to the outside of the coating table 7. A clamping plate 8 is fixedly installed on one side of the telescopic end of the second hydraulic telescopic device 19. A rubber pad 9 is fixedly installed on the side of the clamping plate 8 near the coating table 7. The rubber pad 9 is treated with anti-static agents to facilitate the fixing of the substrate by the clamping plate 8.

[0026] Please see Figure 2 and Figure 3 A drain pipe 20 is fixedly installed at the center of the lower end of the processing table 1. The drain pipe 20 is connected to the collection tank 5. A base 3 is fixedly installed between the support rods 2. A collection box 4 is installed at the upper end of the base 3. The collection box 4 is positioned corresponding to the drain pipe 20, so that the dripping waste glue can be collected through the collection box 4.

[0027] Working principle: During use, the operator bends the redundant parts on both sides of the film substrate so that the two sides of the substrate contact the side wall of the coating table 7. Then, the second hydraulic telescopic device 19 is activated, causing the telescopic end of the second hydraulic telescopic device 19 to retract. The extension and retraction of the telescopic end of the second hydraulic telescopic device 19 drives the clamping plate 8 to move until the clamping plate 8 is moved to the appropriate position. At this time, the rubber pad 9 on the clamping plate 8 contacts the substrate and causes compression. When applying the adhesive, the first hydraulic telescopic device 6 is activated first, causing the telescopic end of the first hydraulic telescopic device 6 to extend. The extension of the telescopic end of the first hydraulic telescopic device 6 moves the coating table 7 to the appropriate height. At this time, the servo motor 11 is activated, which drives the lead screw 13 to rotate. The lead screw 13 drives the moving seat 14 to move inside the slide groove 12, and at the same time, it moves with the moving seat 14. 4. The fixedly connected discharge assembly 18 and mounting ear plate 16 move together until the discharge assembly 18 is moved to a suitable position. At this time, the adhesive enters the discharge assembly 18 through the telescopic tube 15 and flows to the surface of the substrate. Then, the servo motor 11 is turned on again, so that the servo motor 11 drives the discharge assembly 18 and the coating roller 17 to move together. The coating roller 17 evenly coats the adhesive on the surface of the substrate. At this time, the power direction of the servo motor 11 is changed, so that the coating roller 17 moves back and forth on the surface of the substrate. At the same time, under the action of the coating roller 17, the excess adhesive will drip from both sides of the substrate and fall into the collection tank 5. The adhesive flows down the slope of the collection tank 5 to the bottom of the tank. At this time, the adhesive is discharged from the collection tank 5 through the drain pipe 20 and flows into the collection box 4 until the coating operation of the substrate is completed. At this time, the operator uses tools to process the adhesive in the collection box 4.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A polyurethane hot melt adhesive film coating device, comprising a processing table (1), wherein support rods (2) are fixedly installed at the four corners of the lower end of the processing table (1), characterized in that: A fixed frame (10) is fixedly installed at the upper end of the processing table (1). A sliding groove (12) is provided inside the fixed frame (10). The sliding groove (12) has a through structure. A lead screw (13) is provided inside the sliding groove (12). Both sides of the lead screw (13) are rotatably connected to the inner wall of the sliding groove (12). A movable seat (14) is sleeved on the outside of the lead screw (13). The movable seat (14) slides and limits the sliding groove (12). The lower end of the movable seat (14) extends to the outside of the sliding groove (12). A discharge assembly (18) is fixedly installed at the lower end of the movable seat (14). Mounting ear plates (16) are fixedly installed on both sides of the outside of the discharge assembly (18). A coating roller (17) is provided inside the mounting ear plate (16). The coating roller (17) is rotatably connected to the mounting ear plate (16).

2. The polyurethane hot melt adhesive film coating equipment according to claim 1, characterized in that: A liquid collection tank (5) is provided at the center of the processing table (1). The inner wall of the liquid collection tank (5) is inclined. A first hydraulic telescopic device (6) is fixedly provided on both sides and the front and rear ends of the upper end of the liquid collection tank (5). The first hydraulic telescopic device (6) is symmetrically arranged. A coating table (7) is fixedly provided at the upper end of the telescopic end of the first hydraulic telescopic device (6).

3. The polyurethane hot melt adhesive film coating equipment according to claim 2, characterized in that: A servo motor (11) is fixedly installed on the upper side of the outer side of the fixed frame (10). The output shaft of the servo motor (11) extends into the interior of the slide groove (12) and is fixedly connected to the lead screw (13).

4. The polyurethane hot melt adhesive film coating equipment according to claim 3, characterized in that: The coating table (7) is equipped with two fixed second hydraulic telescopic devices (19) on both sides inside. The telescopic end of the second hydraulic telescopic device (19) extends to the outside of the coating table (7). A clamping plate (8) is fixedly installed on one side of the telescopic end of the second hydraulic telescopic device (19).

5. The polyurethane hot melt adhesive film coating equipment according to claim 4, characterized in that: A rubber pad (9) is fixedly installed on the side of the clamping plate (8) near the coating table (7).

6. The polyurethane hot melt adhesive film coating equipment according to claim 5, characterized in that: A drain pipe (20) is fixedly installed at the center of the lower end of the processing table (1). The drain pipe (20) is connected to the collection tank (5). A base (3) is fixedly installed between the support rods (2). A collection box (4) is installed at the upper end of the base (3). The collection box (4) corresponds to the position of the drain pipe (20).

7. The polyurethane hot melt adhesive film coating equipment according to claim 6, characterized in that: A telescopic pipe (15) is fixedly installed at the rear end of the discharge assembly (18), and the telescopic pipe (15) is connected to the pipe inside the discharge assembly (18).

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