Gluing device for PET (Polyethylene Terephthalate) base material

Abstract

The utility model relates to a gluing device, in particular to a PET (Polyethylene Terephthalate) base material gluing device. The PET base material gluing device comprises a base, a release roller, a connecting rod, a connecting ring, an L-shaped connecting block, a first hydraulic cylinder, a sliding block, a second hydraulic cylinder, a gluing roller, a tension sensor, a wind-up roller and the like, second hydraulic cylinders are arranged on the front side and the rear side in the base correspondingly, sliding blocks are connected to telescopic rods of the two second hydraulic cylinders correspondingly, a rotating motor is arranged on the rear side of the sliding block located on the front side, a gluing roller is connected to an output shaft of the rotating motor, a tension sensor is arranged on the outer side of the middle of the gluing roller, and first hydraulic cylinders are arranged on the right sides of the two sliding blocks correspondingly. The height of the glue spraying head can be adjusted according to the height change of the glue spreading roller while the height of the glue spreading roller is adjusted, so that the relative position between the glue spraying head and the glue spreading roller is kept optimal, the uniform and consistent coating thickness is realized, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to an adhesive coating device, and more particularly to an adhesive coating device for PET substrates. Background Technology

[0002] PET substrate refers to films or sheets made of polyethylene terephthalate (PET), widely used in packaging, electronics, printing, and other fields. Currently, during the production and processing of PET substrate, it needs to be coated with adhesive. To ensure the quality of the adhesive coating, the tension of the PET substrate is generally adjusted before coating to ensure its flatness and stability.

[0003] The existing device only adjusts the tension of the PET substrate by adjusting the height of the coating roller, without simultaneously adjusting the height of the spray nozzle. The relative position between the coating roller and the spray nozzle is fixed and cannot be flexibly adjusted according to actual needs, which can easily lead to inconsistent coating thickness and affect product quality. Utility Model Content

[0004] In order to overcome the shortcomings of existing devices that control the tension of PET substrate by adjusting the height of the coating roller, while the height of the spray nozzle is fixed and cannot be adjusted, resulting in uneven coating thickness and affecting product quality, this utility model can provide a PET substrate coating device.

[0005] The technical solution is as follows: A PET substrate coating device includes a base, a release roller, a connecting rod, a connecting ring, an L-shaped connecting block, a first hydraulic cylinder, a slider, a second hydraulic cylinder, a coating roller, a tension sensor, a take-up roller, a control panel, a servo motor, and a coating mechanism. The base has second hydraulic cylinders on both the front and rear sides. Sliders are connected to the telescopic rods of both second hydraulic cylinders. A rotary motor is located behind the front slider, and a coating roller is connected to the output shaft of the rotary motor. A tension sensor is located on the outer side of the center of the coating roller. A first hydraulic cylinder is located on the right side of both sliders, and an L-shaped connecting block is connected to the telescopic rod of each first hydraulic cylinder. A connecting rod is located on the top left side of the L-shaped connecting block, penetrating the slider. A connecting ring is located at the top of the connecting rod, and a coating mechanism is fitted inside the connecting ring. A release roller is rotatably connected to the right side of the base, and a take-up roller is rotatably connected to the left side of the base. A servo motor and a control panel are located on the rear side of the base. The output shaft of the servo motor is connected to the take-up roller. The first hydraulic cylinder, the second hydraulic cylinder, the tension sensor, and the servo motor are all electrically connected to the control panel.

[0006] Furthermore, the glue application mechanism includes a glue inlet pipe, a glue spray head, and a glue storage tank. The glue inlet pipe is sleeved inside the connecting ring, and the glue spray head is connected to the bottom of the glue inlet pipe. A glue storage tank is provided on the front side of the base, and the glue storage tank and the glue inlet pipe are connected by a hose. A guide groove is opened on the front side of the base.

[0007] Furthermore, it also includes a support roller, with a support roller provided on the inner side of the base.

[0008] Furthermore, it also includes a pressure roller, a mounting bracket, a guide rod, and a compression spring. The pressure roller is located on the inner side of the base and is positioned directly above the support roller. The mounting bracket is located on the inner side of the base, and a guide rod is connected between the upper and lower sides of the mounting bracket. The guide rod passes through a fixed shaft inside the pressure roller, and a compression spring is located on the outer side of the guide rod, between the mounting bracket and the fixed shaft.

[0009] Furthermore, it also includes a recycling tank and a water pump. The recycling tank is located on the top of the base and is directly below the coating roller. A water pump is located on the right side of the recycling tank. The water pump is electrically connected to the control panel. The water pump's suction end is located inside the recycling tank. A connecting pipe is provided on the water pump's delivery end, and the water pump is connected to the glue storage tank through the connecting pipe.

[0010] Furthermore, it also includes a cylinder and a sleeve. The cylinder is located inside the front side of the base, and the sleeve is connected to the extension rod of the cylinder.

[0011] Furthermore, it also includes a fixing plate, which is located on the front side of the slider at the rear, and the bottom of the fixing plate is connected to the tension sensor.

[0012] Furthermore, it also includes a guide plate. The base is equipped with a guide plate, and the two sliders have grooves on the side near the inner wall of the base. The grooves fit into the guide plate.

[0013] Beneficial effects: 1. The design of the first hydraulic cylinder, the second hydraulic cylinder, the slider and the connecting ring of this utility model can adjust the height of the spray head according to the height change of the coating roller while adjusting the height of the coating roller, so as to ensure that the distance between the spray head and the coating roller is kept optimal, achieve a uniform coating thickness and ensure product quality.

[0014] 2. The design of the support roller, pressing roller, guide rod and compression spring of this utility model is such that the pressing roller, under its own weight and the action of the compression spring, cooperates with the support roller to apply uniform pressure to the PET substrate, so that the PET substrate remains flat when passing through the support roller. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional view of the base of this utility model.

[0017] Figure 3 This is a schematic diagram of the adhesive inlet pipe and adhesive roller of this utility model.

[0018] Figure 4This is a schematic diagram of the connecting ring, connecting rod, and L-shaped connecting block of this utility model.

[0019] Figure 5 This is a schematic diagram of the mounting bracket, guide rod, and compression spring of this utility model.

[0020] Figure 6 This is a structural diagram of the back of the present invention.

[0021] The meanings of the reference numerals in the diagram are as follows: 1-Base, 2-Release roller, 3-Pressure roller, 301-Fixed shaft, 4-Support roller, 5-Mounting bracket, 501-Guide rod, 502-Compression spring, 6-Glue inlet pipe, 601-Connecting ring, 602-Glue spray head, 603-Connecting rod, 604-L-shaped connecting block, 605-First hydraulic cylinder, 7-Slider, 701-Groove, 8-Second hydraulic cylinder, 9-Guide plate, 10-Glue application roller, 11-Tension sensor, 12-Take-up roller, 13-Guide groove, 14-Glue storage tank, 15-Water pump, 16-Recovery tank, 17-Cylinder, 18-Sleeve, 19-Control panel, 20-Servo motor, 21-Fixed plate, 22-Connecting 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. 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.

[0023] A PET substrate coating device, such as Figures 1-6As shown, the system includes a base 1, a release roller 2, a connecting rod 603, a connecting ring 601, an L-shaped connecting block 604, a first hydraulic cylinder 605, a slider 7, a second hydraulic cylinder 8, a glue-applying roller 10, a tension sensor 11, a take-up roller 12, a control panel 19, a servo motor 20, and a glue-applying mechanism. The base 1 has second hydraulic cylinders 8 on both its front and rear sides. Slider 7 is connected to the telescopic rods of both second hydraulic cylinders 8. A rotary motor is located behind the front slider 7, and the output shaft of the rotary motor is connected to the glue-applying roller 10. The rear side of the glue-applying roller 10 is rotatably connected to the front side of the rear slider 7. A tension sensor 11 is located on the outer side of the middle of the glue-applying roller 10. The outer side of the tension sensor 11 is sealed with a thin film to isolate the tension sensor 11 from the glue and ensure that it does not affect the smoothness of the glue-applying roller 10. The two sliders... 7. A first hydraulic cylinder 605 is provided on the right side. An L-shaped connecting block 604 is connected to the telescopic rod of the first hydraulic cylinder 605. A connecting rod 603 is provided on the top left side of the L-shaped connecting block 604. The connecting rod 603 passes through the slider 7. A connecting ring 601 is provided on the top of the connecting rod 603. A glue applicator is fitted inside the connecting ring 601. A release roller 2 is rotatably connected to the right side inside the base 1. A take-up roller 12 is rotatably connected to the left side inside the base 1. The front and rear sides of the release roller 2 and the front side of the take-up roller 12 are all connected to the inner wall of the base 1 through a rotary joint. A servo motor 20 and a control panel 19 are provided on the rear side of the base 1. The output shaft of the servo motor 20 is connected to the rear side of the take-up roller 12. The first hydraulic cylinder 605, the second hydraulic cylinder 8, the tension sensor 11 and the servo motor 20 are all electrically connected to the control panel 19.

[0024] like Figure 1 and Figure 3 As shown, the glue application mechanism includes a glue inlet pipe 6, a glue spray head 602, and a glue storage tank 14. The glue inlet pipe 6 is fitted inside the connecting ring 601. The glue spray head 602 is connected to the bottom of the glue inlet pipe 6 and is located above the right side of the glue application roller 10. The glue storage tank 14 is located on the front side of the base 1. The glue storage tank 14 has a built-in centrifugal pump, which is electrically connected to the control panel 19. The glue storage tank 14 and the glue inlet pipe 6 are connected by a hose. A guide groove 13 is opened on the front side of the base 1. The guide groove 13 allows the hose to move with the glue inlet pipe 6 when it moves up and down.

[0025] like Figure 2 and Figure 5 As shown, it also includes a support roller 4. The support roller 4 is provided on the inner side of the base 1. The support roller 4 can provide additional support to maintain the stability of the PET substrate.

[0026] like Figure 5As shown, it also includes a pressure roller 3, a mounting frame 5, a guide rod 501, and a compression spring 502. The pressure roller 3 is provided on the inner side of the base 1 and is located directly above the support roller. The mounting frame 5 is provided on the inner side of the base 1. The guide rod 501 is connected between the upper and lower sides of the mounting frame 5. The guide rod 501 passes through the fixed shaft 301 inside the pressure roller 3. The compression spring 502 is provided on the outer side of the guide rod 501 and is located between the mounting frame 5 and the fixed shaft 301. Under the action of its own weight and the compression spring 502, the pressure roller 3 can apply a certain pressure to the PET substrate, so that the PET substrate remains flat when passing through the support roller 4.

[0027] like Figure 2 As shown, it also includes a recycling tank 16 and a water pump 15. The recycling tank 16 is located on the top of the base 1 and is directly below the glue coating roller 10. The water pump 15 is located on the right side of the recycling tank 16. The water pump 15 is electrically connected to the control panel 19. The water suction end of the water pump 15 is located in the recycling tank 16. The water delivery end of the water pump 15 is provided with a connecting pipe 22, and the water pump 15 is connected to the glue storage tank 14 through the connecting pipe 22. The recycling tank 16 is used to collect excess glue and pump it back to the glue storage tank 14 through the water pump 15, so as to realize the recycling of glue and reduce waste.

[0028] like Figure 2 As shown, it also includes a cylinder 17 and a sleeve 18. The base 1 is equipped with a cylinder 17, and the sleeve 18 is connected to the telescopic rod of the cylinder 17. The rotary joint is replaced with a cylinder 17 and a sleeve 18. The cylinder 17 is started, the telescopic rod is extended, and the sleeve 18 is inserted into the connecting shaft of the release roller 2, so that the release roller 2 is fixed on the base 1 while allowing the release roller 2 to rotate. When disassembly is required, the telescopic rod of the cylinder 17 can be retracted.

[0029] like Figure 3 As shown, it also includes a fixing plate 21. The fixing plate 21 is located on the front side of the slider 7 located on the rear side. The bottom of the fixing plate 21 is connected to the tension sensor 11. Even if the glue roller 10 rotates, the tension sensor 11 will not rotate with it. This keeps the tension sensor 11 in a stable position and avoids measurement errors caused by rotation.

[0030] like Figure 3 As shown, it also includes a guide plate 9. The base 1 is provided with a guide plate 9. The two sliders 7 have grooves 701 on the side near the inner wall of the base 1. The grooves 701 fit with the guide plate 9. The guide plate 9 enables the sliders 7 to move stably inside the base 1 and prevents them from deviating.

[0031] Start the right cylinder 17 via control panel 19. The right cylinder 17 moves the sleeve 18 out of the connecting shaft of the release roller 2 by retracting the telescopic rod. Remove the release roller 2, put the PET substrate roller into the release roller 2, and put the release roller 2 back in. Start the cylinder 17 to extend the telescopic rod and reinsert the sleeve 18 into the connecting shaft of the release roller 2 to fix the release roller 2. Then lift the pressure roller 3 and pass one end of the PET substrate between the pressure roller 3 and the support roller 4. Lower the pressure roller 3. Under the action of gravity and compression spring 502, the pressure roller 3 can apply a certain pressure to the PET substrate to ensure that the PET substrate remains flat when passing through the support roller 4. Finally, pass the PET substrate through the bottom of the coating roller 10 and connect it to the take-up roller 12. At this time, the tension sensor 11 monitors the tension of the PET substrate in real time and feeds the data back to the control panel 19. The control panel 19 controls the extension and retraction of the telescopic rod of the second hydraulic cylinder 8 to adjust the position of the slider 7, thereby adjusting the height of the coating roller 10 to ensure that the PET substrate maintains constant tension during the coating process and avoids slack or overstretching. The second hydraulic cylinder 8 is then turned off, and the first hydraulic cylinder 605 is started through the control panel 19 according to the height of the coating roller 10. The first hydraulic cylinder 605 adjusts the height of the spray nozzle 602 by driving the connecting ring 601 to move up and down. After adjusting the heights of the coating roller 10 and the spray nozzle 602 synchronously, the first hydraulic cylinder 605 is shut down via the control panel 19, and the servo motor 20, rotary motor, and centrifugal pump are started. The servo motor 20 drives the take-up roller 12 to rotate counterclockwise to pull the PET substrate out of the release roller 2. The centrifugal pump extracts the glue from the glue storage tank 14 and delivers it to the spray nozzle 602 through the glue inlet pipe 6. The spray nozzle 602 sprays the glue evenly onto the surface of the coating roller 10. At the same time, the rotary motor drives the coating roller 10 to rotate clockwise so that the glue is evenly applied and transferred to the PET substrate. After coating and rewinding one PET substrate roller is completed, the servo motor 20, rotary motor, and centrifugal pump are shut down. The left cylinder 17 is started via the control panel 19 to remove the take-up roller 12 and take out the coated PET substrate roller. Finally, the take-up roller 12 is put back down and fixed by the sleeve 18 to prepare for the next production cycle.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A PET substrate coating device, comprising a base (1), a release roller (2), a take-up roller (12), and a servo motor (20), wherein the release roller (2) is rotatably connected to the right side inside the base (1), the take-up roller (12) is rotatably connected to the left side inside the base (1), and the servo motor (20) is provided on the rear side of the base (1), wherein the output shaft of the servo motor (20) is connected to the take-up roller (12), characterized in that, It also includes a connecting rod (603), a connecting ring (601), an L-shaped connecting block (604), a first hydraulic cylinder (605), a slider (7), a second hydraulic cylinder (8), a glue-applying roller (10), a tension sensor (11), a take-up roller (12), a control panel (19), and a glue-applying mechanism. The base (1) is equipped with second hydraulic cylinders (8) on both the front and rear sides. The telescopic rods of the two second hydraulic cylinders (8) are connected to sliders (7). A rotary motor is located behind the slider (7) at the front. The output shaft of the rotary motor is connected to the glue-applying roller (10). A tension sensor (11) is located on the outer side of the middle part of the glue-applying roller (10). Both sliders (7) are equipped with a first hydraulic cylinder (605) on the right side. The telescopic rod of the first hydraulic cylinder (605) is connected to an L-shaped connecting block (604). The top left side of the L-shaped connecting block (604) is equipped with a connecting rod (603). The connecting rod (603) passes through the slider (7). The top of the connecting rod (603) is equipped with a connecting ring (601). The connecting ring (601) is fitted with a glue applicator. The base (1) is equipped with a control panel (19) on the rear side. The first hydraulic cylinder (605), the second hydraulic cylinder (8), the tension sensor (11), and the servo motor (20) are all electrically connected to the control panel (19).

2. The PET substrate coating apparatus according to claim 1, characterized in that, The glue application mechanism includes a glue inlet pipe (6), a glue spray head (602), and a glue storage tank (14). The glue inlet pipe (6) is fitted inside the connecting ring (601). The glue spray head (602) is connected to the bottom of the glue inlet pipe (6). The glue storage tank (14) is provided on the front side of the base (1). The glue storage tank (14) and the glue inlet pipe (6) are connected by a hose. A guide groove (13) is opened on the front side of the base (1).

3. The PET substrate coating apparatus according to claim 2, characterized in that, It also includes a support roller (4), and the support roller (4) is provided on the inner side of the base (1).

4. The PET substrate coating apparatus according to claim 3, characterized in that, It also includes a pressure roller (3), a mounting bracket (5), a guide rod (501), and a compression spring (502). The pressure roller (3) is provided on the inner side of the base (1). The pressure roller (3) is located directly above the support roller (4). The mounting bracket (5) is provided on the inner side of the base (1). The guide rod (501) is connected between the upper and lower sides of the mounting bracket (5). The guide rod (501) passes through the fixed shaft (301) inside the pressure roller (3). The compression spring (502) is provided on the outer side of the guide rod (501). The compression spring (502) is located between the mounting bracket (5) and the fixed shaft (301).

5. A PET substrate coating apparatus according to claim 4, characterized in that, It also includes a recycling tank (16) and a water pump (15). The recycling tank (16) is located on the top of the base (1) and is located directly below the glue coating roller (10). The water pump (15) is located on the right side of the recycling tank (16). The water pump (15) is electrically connected to the control panel (19). The water suction end of the water pump (15) is located in the recycling tank (16). The water delivery end of the water pump (15) is provided with a connecting pipe (22), and the water pump (15) is connected to the glue storage tank (14) through the connecting pipe (22).

6. The PET substrate coating apparatus according to claim 5, characterized in that, It also includes a cylinder (17) and a sleeve (18). The cylinder (17) is provided inside the front side of the base (1), and the sleeve (18) is connected to the telescopic rod of the cylinder (17).

7. A PET substrate coating apparatus according to claim 6, characterized in that, It also includes a fixing plate (21), which is located on the front side of the slider (7) on the rear side. The bottom of the fixing plate (21) is connected to the tension sensor (11).

8. The PET substrate coating apparatus according to claim 7, characterized in that, It also includes a guide plate (9), and the base (1) is provided with a guide plate (9). The two sliders (7) have grooves (701) on the side near the inner wall of the base (1), and the grooves (701) fit with the guide plate (9).

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