A double-sided film coating device

Abstract

The utility model belongs to the field of film covering technology, and concretely relates to a double-sided film covering device. The double-sided film covering device does not need to perform secondary film covering operation on the other side of the base material after film covering, and can uniformly adhere plastic film or functional film layer to the front and back sides of the base material through the method of synchronous gluing and extrusion. One side of the upper end of the film covering box is provided with a first stepping motor, the lower end of the other side of the film covering box is provided with a second stepping motor, one side of the upper end inside the film covering box is provided with a first upper film covering roller, the lower end of the first upper film covering roller is provided with a first lower film covering roller, and the base material is arranged between the first upper film covering roller and the first lower film covering roller and between the second upper film covering roller and the second lower film covering roller; the hot air blowing assembly comprises an air duct, a quartz heating tube and an axial flow fan, the top of the air duct is provided with the quartz heating tube, and the inside of the air duct is provided with the axial flow fan capable of blowing the hot air generated by the quartz heating tube.

Description

Technical Field

[0001] This utility model belongs to the field of coating technology, specifically relating to a double-sided coating device. Background Technology

[0002] Lamination is a process of covering the surface of substrates such as boards and films with a layer of plastic film to enhance the durability, water resistance and aesthetics of the substrate. Currently, after single-sided lamination, a second lamination operation is required on the other side of the substrate using additional equipment, which leads to an extended production cycle.

[0003] However, existing laminating equipment has a simple structure, and after laminating one side, a second laminating operation is required on the other side of the substrate. It lacks a structure that can uniformly adhere plastic film or functional film layer to both sides of the substrate through simultaneous glue application and extrusion. It cannot perform double-sided lamination of soft film or hard film on the substrate, which prolongs the laminating processing time. Moreover, it does not have the function of using hot air to improve the curing speed of the lamination, resulting in low lamination efficiency. Therefore, we propose a double-sided laminating device. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned background technology, the purpose of this utility model is to provide a double-sided laminating device. The double-sided laminating device does not require a secondary laminating operation on the other side of the substrate after the first laminating. It can uniformly adhere plastic film or functional film layer to both sides of the substrate by means of simultaneous glue application and extrusion. It can perform double-sided laminating of soft film and hard film on the substrate. The laminating appearance is good, without delamination or curling, effectively shortening the laminating processing time. Moreover, it has the function of using hot air blowing to improve the curing speed of the laminating, thereby effectively improving the laminating efficiency.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0006] A double-sided laminating device includes a laminating box, a first upper laminating roller, a first lower laminating roller, a second upper laminating roller, and a second lower laminating roller. A first stepper motor is installed at the upper end of one side of the laminating box, and a second stepper motor is installed at the lower end of the other side of the laminating box. A first upper laminating roller is installed on one side of the upper end inside the laminating box, and a first lower laminating roller is provided at the lower end of the first upper laminating roller. A second upper laminating roller is installed on the other side of the upper end inside the laminating box, and a second lower laminating roller is provided at the lower end of the second upper laminating roller. A substrate is provided between the first upper laminating roller and the first lower laminating roller, and between the second upper laminating roller and the second lower laminating roller.

[0007] The bottom of the laminating box is equipped with a hot air blowing assembly, which includes an air duct, a quartz heating tube and an axial fan. The top of the air duct is equipped with a quartz heating tube, and the inside of the air duct is equipped with an axial fan that can blow the hot air generated by the quartz heating tube.

[0008] By adopting the above technical solution, this novel double-sided laminating device eliminates the need for a secondary laminating operation on the other side of the substrate after the initial lamination. It can uniformly adhere plastic film or functional film layers to both sides of the substrate through simultaneous adhesive application and extrusion. It can perform double-sided lamination of the substrate with both soft and hard films, resulting in a good lamination appearance without delamination or curling. This effectively shortens the lamination processing time and also has the function of using hot air blowing to increase the curing speed of the lamination, thereby effectively improving the lamination efficiency.

[0009] Based on the above scheme and as a preferred scheme: one end of the No. 1 upper coating roller is connected to the output end of the No. 1 stepper motor, the outer side of the No. 1 upper coating roller is provided with a No. 1 driving gear, the outer side of the No. 2 upper coating roller is provided with a No. 1 driven gear, and a No. 1 transmission belt is sleeved on the outer side between the No. 1 driving gear and the No. 1 driven gear.

[0010] By adopting the above technical solution, the No. 1 stepper motor can drive the No. 1 upper coating roller to rotate clockwise. Through the cooperation of the No. 1 transmission belt, the rotational force can be transmitted to the No. 1 driven gear at one end of the No. 2 upper coating roller, so that the No. 2 upper coating roller can rotate synchronously.

[0011] Based on the above scheme and as a preferred scheme: one end of the No. 1 lower coating roller is connected to the output end of the No. 2 stepper motor, the No. 2 driving gear is provided on the outer side of one end of the No. 1 lower coating roller, the No. 2 driven gear is provided on the outer side of the No. 2 lower coating roller, and the No. 2 transmission belt is sleeved on the outer side between the No. 2 driving gear and the No. 2 driven gear.

[0012] By adopting the above technical solution, the No. 2 stepper motor can drive the No. 1 lower coating roller to rotate clockwise. With the cooperation of the No. 2 transmission belt, the rotational force can be transmitted to the No. 2 driven gear at one end of the No. 2 lower coating roller, so that the No. 2 lower coating roller can rotate synchronously.

[0013] Based on the above solution and as a preferred embodiment of the above solution: the hot air blowing assembly also includes fastening bolts, which can detachably connect the air duct to the bottom of the film-coating box.

[0014] Based on the above scheme and as a preferred option: the film-coating box has substrate inlets and outlets on both sides, and the inner side of the substrate inlets and outlets is provided with a sealing strip.

[0015] Based on the above scheme and as a preferred option: a pressure relief valve is installed on the top of the laminating box, and bases are provided at both ends of the bottom of the laminating box.

[0016] Based on the above scheme and as a preferred option, the bottom of the film-coated box is provided with a ventilation opening.

[0017] Based on the above scheme and as a preferred option: the other ends of the No. 1 upper coating roller, the No. 1 lower coating roller, the No. 2 upper coating roller, and the No. 2 lower coating roller are all connected to the inner wall of the coating box via bearings.

[0018] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0019] This utility model discloses a double-sided laminating device. Through the cooperation of an upper laminating roller, a lower laminating roller, an upper laminating roller, and a lower laminating roller, the substrate can be driven to move from left to right. The friction and extrusion formed between the upper laminating roller, the lower laminating roller, and the substrate can evenly adhere the plastic film or functional film layer to both sides of the substrate, thereby achieving the purpose of double-sided laminating of the substrate with soft film or hard film.

[0020] The quartz heating tube of this invention generates high temperature when energized. Through an axial fan, the high temperature can be blown into the interior of the coating chamber through the ventilation port, allowing the high temperature to come into contact with the surface of the substrate. The curing speed of the coating can be increased by blowing hot air. In addition, the infrared radiation generated by the quartz heating tube itself can directly heat the surface of the substrate, which can further accelerate the curing speed of the coating. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the coating roller structure of this utility model;

[0023] Figure 3 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the hot air blowing component of this utility model.

[0025] Reference numerals: 1. Coating box; 2. Stepper motor 1; 3. Upper coating roller 1; 4. Lower coating roller 1; 5. Stepper motor 2; 6. Upper coating roller 2; 7. Lower coating roller 2; 8. Hot air blowing assembly; 801. Air duct; 802. Quartz heating tube; 803. Axial flow fan; 804. Fastening bolt; 9. Drive gear 1; 10. Substrate; 11. Driven gear 1; 12. Drive gear 2; 13. Driven gear 2; 14. Drive belt 2; 15. Pressure relief valve; 16. Ventilation port; 17. Base; 18. Bearing; 20. Substrate inlet / outlet; 21. Sealing strip; 22. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments;

[0027] This utility model discloses a double-sided laminating device, comprising a laminating box 1, an upper laminating roller 3, a lower laminating roller 4, an upper laminating roller 6, and a lower laminating roller 7. A stepper motor 2 is installed at the upper end of one side of the laminating box 1, and a stepper motor 5 is installed at the lower end of the other side of the laminating box 1. An upper laminating roller 3 is installed on one side of the upper end inside the laminating box 1, and a lower laminating roller 4 is provided at the lower end of the upper laminating roller 3. An upper laminating roller 6 is installed on the other side of the upper end inside the laminating box 1, and a lower laminating roller 7 is provided at the lower end of the upper laminating roller 6. A substrate 10 is provided between the upper laminating roller 3 and the lower laminating roller 4, and between the upper laminating roller 6 and the lower laminating roller 7.

[0028] The bottom of the coating box 1 is equipped with a hot air blowing assembly 8, which includes an air duct 801, a quartz heating tube 802 and an axial fan 803. The top of the air duct 801 is equipped with a quartz heating tube 802, and the inside of the air duct 801 is equipped with an axial fan 803 that can blow the hot air generated by the quartz heating tube 802.

[0029] In use, the cooperation of the No. 1 upper coating roller 3, the No. 1 lower coating roller 4, the No. 2 upper coating roller 6, and the No. 2 lower coating roller 7 can drive the substrate 10 to move from left to right. The friction and extrusion formed between the No. 1 upper coating roller 3, the No. 2 upper coating roller 6, the No. 1 lower coating roller 4, and the No. 2 lower coating roller 7 and the substrate 10 can evenly adhere the plastic film or functional film layer to both sides of the substrate 10, so as to achieve the purpose of double-sided lamination of the substrate 10 with soft film and hard film.

[0030] When the quartz heating tube 802 is powered on, it generates high temperature. The high temperature can be blown into the interior of the coating box 1 through the vent 17 by the axial fan 803, so that the high temperature can come into contact with the surface of the substrate 10. The curing speed of the coating can be increased by blowing hot air. In addition, the infrared radiation generated by the quartz heating tube 802 itself can directly heat the surface of the substrate 10, which can further accelerate the curing speed of the coating.

[0031] To improve the efficiency of lamination by simultaneously applying adhesive and extruding plastic films or functional films onto both sides of a substrate, and by using hot air to accelerate the curing process, a method is employed. Figure 1-4 As shown.

[0032] For example, such as Figure 2 As shown, one end of the first upper coating roller 3 is connected to the output end of the first stepper motor 2. The outer side of one end of the first upper coating roller 3 is provided with a first driving gear 9, and the outer side of the second upper coating roller 6 is provided with a first driven gear 11. A first transmission belt 12 is sleeved on the outer side between the first driving gear 9 and the first driven gear 11.

[0033] In use, the first stepper motor 2 can drive the first upper coating roller 3 to rotate clockwise. Through the cooperation of the first transmission belt 12, the rotational force can be transmitted to the first driven gear 11 at one end of the second upper coating roller 6, so that the second upper coating roller 6 can rotate synchronously.

[0034] For example, such as Figure 2 As shown, one end of the first lower film coating roller 4 is connected to the output end of the second stepper motor 5. The second driving gear 13 is provided on the outer side of one end of the first lower film coating roller 4, and the second driven gear 14 is provided on the outer side of the second lower film coating roller 7. The second transmission belt 15 is sleeved on the outer side between the second driving gear 13 and the second driven gear 14.

[0035] In use, the second stepper motor 5 can drive the first lower coating roller 4 to rotate clockwise. Through the cooperation of the second transmission belt 15, the rotational force can be transmitted to the second driven gear 14 at one end of the second lower coating roller 7, so that the second lower coating roller 7 can rotate synchronously.

[0036] For example, such as Figure 4 As shown, the hot air blowing assembly 8 also includes a fastening bolt 804, which can detachably connect the air duct 801 to the bottom of the film-coating box 1.

[0037] During use, this connection method facilitates the inspection or replacement of components inside the air duct 801 by personnel.

[0038] For example, such as Figure 1 , Figure 3 As shown, both sides of the film-coating box 1 are provided with substrate inlets and outlets 21, and the inner side of the substrate inlets and outlets 21 is provided with sealing strips 22.

[0039] During use, the substrate inlet / outlet 21 facilitates the entry and exit of the substrate 10 into and out of the coating box 1. The sealing strip 22 is located between the substrate inlet / outlet 21 and the substrate 10 to provide a sealing effect and effectively prevent heat leakage.

[0040] For example, such as Figure 1 , Figure 4 As shown, a pressure relief valve 16 is installed on the top of the laminating box 1, and a base 18 is provided at both ends of the bottom of the laminating box 1.

[0041] When in use, if the pressure inside the coating box 1 exceeds the set value, the pressure relief valve 16 can release the excess pressure to ensure that the coating device operates within a safe pressure range and avoid failures such as damage to seals, pipe rupture, and roller deformation.

[0042] For example, such as Figure 4 As shown, the bottom of the film-coated box 1 has a ventilation opening 17.

[0043] When in use, the vent 17 facilitates the entry of hot air into the interior of the film-coated box 1.

[0044] For example, such as Figure 2 As shown, the other ends of the No. 1 upper coating roller 3, the No. 1 lower coating roller 4, the No. 2 upper coating roller 6, and the No. 2 lower coating roller 7 are all connected to the inner wall of the coating box 1 through bearings 20.

[0045] In use, the bearing 20 enables the other ends of the No. 1 upper coating roller 3, the No. 1 lower coating roller 4, the No. 2 upper coating roller 6, and the No. 2 lower coating roller 7 to rotate smoothly when connected to the inner wall of the coating box 1 via the bearing 20.

[0046] When this utility model is in use, the personnel push the substrate 10 to be coated into the interior of the coating box 1 through the substrate inlet and outlet 21, so that the substrate 10 can be located between the first upper coating roller 3 and the first lower coating roller 4 and between the second upper coating roller 6 and the second lower coating roller 7.

[0047] Furthermore, stepper motor 2 can drive upper coating roller 3 to rotate clockwise, while stepper motor 5 can drive lower coating roller 4 to rotate clockwise. With the cooperation of transmission belt 12, upper coating roller 6 can rotate synchronously with upper coating roller 3. With the cooperation of transmission belt 15, lower coating roller 7 can rotate synchronously with lower coating roller 4. The friction generated between upper coating roller 3, upper coating roller 6, lower coating roller 4 and lower coating roller 7 and substrate 10 can drive substrate 10 to move from left to right.

[0048] Furthermore, the friction and extrusion formed between the No. 1 upper coating roller 3, the No. 2 upper coating roller 6, the No. 1 lower coating roller 4 and the No. 2 lower coating roller 7 and the substrate 10 can evenly adhere the plastic film or functional film layer to both sides of the substrate 10, thereby achieving the purpose of double-sided coating of the substrate 10 with soft film and hard film.

[0049] Furthermore, the quartz heating tube 802 generates high temperature after being powered on. The high temperature can be blown into the interior of the coating box 1 through the vent 17 by the axial fan 803, so that the high temperature can come into contact with the surface of the substrate 10. The curing speed of the coating can be increased by blowing hot air. Moreover, the infrared radiation generated by the quartz heating tube 802 itself can directly heat the surface of the substrate 10, which can further accelerate the curing speed of the coating.

[0050] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In this utility model, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection.

[0052] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A double-sided coating device, characterized in that, It includes a laminating box, a No. 1 upper laminating roller, a No. 1 lower laminating roller, a No. 2 upper laminating roller, and a No. 2 lower laminating roller. A No. 1 stepper motor is installed at the upper end of one side of the laminating box, and a No. 2 stepper motor is installed at the lower end of the other side of the laminating box. A No. 1 upper laminating roller is installed on one side of the upper end of the laminating box, and a No. 1 lower laminating roller is installed at the lower end of the No. 2 upper laminating roller. A substrate is provided between the No. 1 upper laminating roller and the No. 1 lower laminating roller, and between the No. 2 upper laminating roller and the No. 2 lower laminating roller. The bottom of the laminating box is equipped with a hot air blowing assembly, which includes an air duct, a quartz heating tube and an axial fan. The top of the air duct is equipped with a quartz heating tube, and the inside of the air duct is equipped with an axial fan that can blow the hot air generated by the quartz heating tube.

2. A double-sided coating device according to claim 1, characterized in that, One end of the No. 1 upper coating roller is connected to the output end of the No. 1 stepper motor. The No. 1 driving gear is provided on the outer side of one end of the No. 1 upper coating roller, and the No. 1 driven gear is provided on the outer side of the No. 2 upper coating roller. The No. 1 transmission belt is sleeved on the outer side between the No. 1 driving gear and the No. 1 driven gear.

3. A double-sided coating device according to claim 1, characterized in that, One end of the No. 1 lower coating roller is connected to the output end of the No. 2 stepper motor. The No. 2 driving gear is provided on the outer side of one end of the No. 1 lower coating roller, and the No. 2 driven gear is provided on the outer side of the No. 2 lower coating roller. The No. 2 transmission belt is sleeved on the outer side between the No. 2 driving gear and the No. 2 driven gear.

4. A double-sided coating device according to claim 1, characterized in that, The hot air blowing assembly also includes fastening bolts that allow for a detachable connection between the air duct and the bottom of the coating box.

5. A double-sided coating device according to claim 1, characterized in that, The laminating box has substrate inlets and outlets on both sides, and sealing strips are provided on the inside of the substrate inlets and outlets.

6. A double-sided coating device according to claim 1, characterized in that, The top of the laminating box is equipped with a pressure relief valve, and both ends of the bottom of the laminating box are equipped with bases.

7. A double-sided coating device according to claim 1, characterized in that, The bottom of the laminating box has ventilation openings.

8. A double-sided coating device according to claim 1, characterized in that, The other ends of the No. 1 upper coating roller, the No. 1 lower coating roller, the No. 2 upper coating roller, and the No. 2 lower coating roller are all connected to the inner wall of the coating box via bearings.

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