A double-sided asynchronous coating and drying apparatus

Abstract

The utility model provides a kind of double-sided asynchronous coating drying equipment, including two equipment base plate, the equipment base plate is L-shaped, the equipment base plate between two sides is equipped with the horizontal rack connecting rod of horizontal rack, transmission shaft is rotatably connected between the equipment base plate, the transmission shaft position symmetry is set in two sides, the transmission drum is fixedly connected with transmission shaft outer end face in two sides, transmission belt is wound between the transmission drum in two sides.The scheme can adjust rotating speed respectively for the double-sided liquid coating characteristics by the independent servo drive design of upper and lower rollers, effectively solve the substrate tensile deformation problem caused by traditional synchronous drive, improve coating thickness uniformity, the scheme forms air float layer by the built-in air guide groove of guide frame plate, so that substrate passes through drying channel in non-contact state after coating, eliminate the surface scratch risk caused by mechanical friction, especially suitable for the processing of ultra-thin substrate.

Description

Technical Field

[0001] This utility model relates to the field of coating and drying technology, specifically to a double-sided asynchronous coating and drying device. Background Technology

[0002] The application of double-sided coating equipment has significantly improved production efficiency, but traditional technologies still have key drawbacks. For example, the control of the substrate travel direction relies on a fixed-height die head layout, which is difficult to adapt to the dynamic adjustment requirements of substrates with different thicknesses; although the air-float steering device achieves non-contact transmission, the fixed arrangement of the adsorption mechanism leads to uneven tension distribution in the width direction of the substrate, which can easily cause wrinkles or curling defects.

[0003] Meanwhile, the defects in synchronous control directly lead to process stability issues. Traditional equipment adopts a single-parameter adjustment mode, where the coating speed is tied to the drying temperature, making asynchronous control impossible. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a double-sided asynchronous coating and drying device, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-sided asynchronous coating and drying device, comprising two equipment base plates, the equipment base plates being L-shaped, a crossbar connecting rod being installed and connected between the two equipment base plates, a transmission shaft being rotatably connected between the two equipment base plates, the two transmission shafts being symmetrically positioned, a transmission drum being fixedly connected to the outer end face of the two transmission shafts, a transmission belt being wound between the two transmission drums, the transmission belt serving the function of transmission, two bearing seats being fixedly provided on one side of the two equipment base plates close to each other, a roller shaft being rotatably connected between the bearing seats of the two equipment base plates, the roller shafts being vertically distributed on both sides, a coating roller being fixedly installed on the outer end face of the roller shaft, the coating rollers on both sides serving the function of transmission coating and coating work.

[0008] Preferably, a transmission motor is fixedly installed on one side of the equipment base plate, and the transmission motor is poweredly connected to the transmission shaft on one side.

[0009] Preferably, two servo motors are fixedly installed on one side of the equipment base plate, and the two servo motors are distributed vertically, with the servo motors on both sides being poweredly connected to the roller shaft respectively.

[0010] Preferably, two inclined guide plates are provided between the equipment base plates on both sides and on the side above the conveyor belt, and an inclined coating guide groove is formed between the guide plates on both sides.

[0011] Preferably, the guide frames on both sides are provided with open through-through air guide slots, and an array of coating dryers are fixedly provided on one side of the guide frame.

[0012] Preferably, two drying controllers are fixedly provided on one side of the equipment base plate on both sides, and the drying controllers on both sides control and drive the coating dryer to start.

[0013] Preferably, a crossbeam is fixed between the base plates on both sides of the equipment and above the conveyor belt, and a number of coolers are installed between the top ends of the crossbeam, which serve to cool and dry the equipment.

[0014] Preferably, an arc-shaped guide strip is installed between one end of the crossbar and the guide plate.

[0015] (III) Beneficial Effects

[0016] This invention provides a double-sided asynchronous coating and drying device. It has the following beneficial effects:

[0017] 1. This solution adopts an independent servo drive design for the upper and lower rollers, which can adjust the rotation speed according to the characteristics of the double-sided coating liquid, effectively solving the problem of substrate stretching and deformation caused by traditional synchronous drive, and improving the uniformity of coating thickness.

[0018] 2. This solution forms an air flotation layer by building air guide grooves in the guide frame plate, allowing the coated substrate to pass through the drying channel in a non-contact state, eliminating the risk of surface scratches caused by mechanical friction, and is especially suitable for processing ultra-thin substrates. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a bottom view of the structure of this utility model;

[0022] Figure 4 This is a front view structural diagram of the present utility model;

[0023] Figure 5 This utility model Figure 4 A schematic diagram of the cross-sectional structure along the AA direction.

[0024] In the diagram: 101, Equipment base plate; 102, Drying controller; 103, Servo motor; 104, Coating roller; 105, Bearing housing; 106, Guide frame plate; 107, Coating dryer; 108, Crossbar; 109, Cooler; 110, Transmission shaft; 111, Transmission drum; 112, Conveyor belt; 113, Transmission motor; 114, Roll shaft; 115, Air guide trough; 116, Arc-shaped strip; 117, Crossbar connecting rod; 118, Coating guide trough. Detailed Implementation

[0025] This utility model embodiment provides a double-sided asynchronous coating and drying device, such as... Figure 1-5 As shown, the device includes two L-shaped base plates 101. A crossbar connecting rod 117 is installed between the two base plates 101. A transmission shaft 110 is rotatably connected between the two base plates 101. The two transmission shafts 110 are symmetrically positioned. A transmission drum 111 is fixedly connected to the outer end face of the two transmission shafts 110. A transmission belt 112 is wound between the two transmission drums 111. The transmission belt 112 serves the function of transmission. Two bearing seats 105 are fixedly installed on one side of the two base plates 101. A roller shaft 114 is rotatably connected between the bearing seats 105 of the two base plates 101. The roller shafts 114 are vertically distributed on both sides. A coating roller 104 is fixedly installed on the outer end face of the roller shaft 114. The coating rollers 104 on both sides serve the functions of transmission coating and coating work.

[0026] Furthermore, a transmission motor 113 is fixedly installed on one side of the equipment base plate 101, and the transmission motor 113 is poweredly connected to the transmission shaft 110 on one side.

[0027] It is worth further explaining that when the transmission motor 113 starts, it can drive the transmission drum 111 to rotate through the power connection, thereby driving the transmission belt 112 to move.

[0028] Furthermore, two servo motors 103 are fixedly installed on one side of the equipment base plate 101. The two servo motors 103 are distributed vertically, and the servo motors 103 on both sides are respectively connected to the roller shaft 114.

[0029] It is worth further explaining that the servo motor 103 drives the roller shaft 114 to rotate separately, and at the same time, the rotational speed of the roller shaft 114 is fed back through the bearing seats 105 installed on both sides.

[0030] Furthermore, two inclined guide plates 106 are provided between the equipment base plates 101 on both sides and on the side above the conveyor belt 112, forming an inclined coating guide groove 118 between the guide plates 106 on both sides.

[0031] Furthermore, each of the two guide plates 106 is provided with an open through-through air guide groove 115, and an array of coating dryers 107 are fixedly provided on one side of the guide plate 106.

[0032] It should be further explained that the coating dryers 107 on both sides open towards the coating guide groove 118. The coating dryers 107 have the effect of drying and heat dissipation, and the output air force has the effect of air flotation support.

[0033] It is worth further explaining that after the coated fabric passes between the coating rollers 104 on both sides, it passes through the coating guide groove 118 and finally moves to the top of the conveyor belt 112 for transmission. When the fabric after the double-sided coating is completed passes between the coating guide grooves 118, the coating dryer 107 dries and cools the fabric on both sides. Then the fabric is further transported by the conveyor belt 112.

[0034] Furthermore, two drying controllers 102 are fixedly installed on one side of the equipment base plate 101 on both sides. The drying controllers 102 on both sides control and drive the coating dryer 107 to start.

[0035] Furthermore, a crossbeam 108 is fixed between the equipment base plates 101 on both sides and above the conveyor belt 112. Several coolers 109 are installed between the top ends of the crossbeam 108, and the coolers 109 have the effect of cooling and drying.

[0036] Furthermore, an arc-shaped guide strip 116 is installed between one end of the crossbar 108 and the guide plate 106.

[0037] The usage method of this solution is as follows:

[0038] S1. First, the base fabric is introduced from the upstream equipment and smoothly transported to the coating station by the conveyor belt 112 driven by the two side transmission shafts 110. The transmission motor 113 maintains the constant speed of the substrate through closed-loop control, eliminating speed fluctuations caused by traditional mechanical transmission.

[0039] S2. The substrate fabric enters between the upper and lower symmetrically arranged coating rollers 104. Two servo motors 103 independently drive the upper and lower roller shafts 114 to achieve the following control.

[0040] Asynchronous speed adjustment: Based on the substrate thickness and coating process requirements, such as the difference in viscosity between the two sides of the coating liquid, the servo motor 103 sets different speeds for the upper and lower coating rollers 104 to avoid substrate stretching and deformation caused by traditional single drive.

[0041] S3. The substrate with double-sided coating is fed into the inclined coating guide groove 118.

[0042] The air guide 115 sprays uniform airflow to both sides of the substrate to form an air-floating support layer, allowing the substrate to pass through the guide channel in a non-contact state and eliminating mechanical friction damage.

[0043] The inclined guide plate 106, together with the arc strip 116, forms a continuous curvature path, so that the airflow adsorption force on the substrate width direction is distributed in a gradient, which counteracts the edge tension concentration generated by the traditional fixed air flotation device.

[0044] S4. The temperature of the two-sided coating dryer 107 is independently regulated by the corresponding drying controller 102, realizing decoupled control of coating speed and drying parameters.

[0045] The substrate receives directional hot air simultaneously on both sides, and the air guide 115 ensures that the heat is evenly diffused across the entire width of the substrate.

[0046] S5. The dried substrate is conveyed to the cooling station via conveyor belt 112. The cooler 109 on the crossbar 108 independently adjusts the air cooling intensity according to the thermal shrinkage characteristics of the substrate to achieve curing and shaping.

[0047] Finally, the substrate is output by conveyor belt 112 to the winding device, completing the entire process.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-sided asynchronous coating and drying device, characterized in that: The device includes two L-shaped base plates (101). A crossbar (117) is installed and connected between the two base plates (101). A transmission shaft (110) is rotatably connected between the two base plates (101). The two transmission shafts (110) are symmetrically positioned, and a transmission drum (111) is fixedly connected to the outer end face of the two transmission shafts (110). A transmission belt (112) is wound between the two transmission drums (111). The conveyor belt (112) serves as a transmission device. Two bearing seats (105) are fixedly provided on one side of the equipment base plates (101) on both sides. Roller shafts (114) are rotatably connected between the bearing seats (105) on both sides of the equipment base plates (101). The roller shafts (114) on both sides are distributed vertically. Coating rollers (104) are fixedly installed on the outer end face of the roller shafts (114). The coating rollers (104) on both sides serve as a transmission and coating device.

2. The double-sided asynchronous coating and drying equipment according to claim 1, characterized in that: A transmission motor (113) is fixedly installed on one side of the equipment base plate (101), and the transmission motor (113) is poweredly connected to the transmission shaft (110) on one side.

3. The double-sided asynchronous coating and drying equipment according to claim 1, characterized in that: Two servo motors (103) are fixedly installed on one side of the equipment base plate (101). The two servo motors (103) are positioned vertically, and the servo motors (103) on both sides are poweredly connected to the roller shaft (114).

4. The double-sided asynchronous coating and drying equipment according to claim 1, characterized in that: Two inclined guide plates (106) are provided between the equipment base plates (101) on both sides and on the side above the conveyor belt (112), and an inclined coating guide groove (118) is formed between the guide plates (106) on both sides.

5. The double-sided asynchronous coating and drying equipment according to claim 4, characterized in that: The guide plates (106) on both sides are respectively provided with open through air guide slots (115), and an array of coating dryers (107) are fixedly provided on one side of the guide plates (106).

6. The double-sided asynchronous coating and drying equipment according to claim 5, characterized in that: Two drying controllers (102) are fixedly installed on one side of the equipment base plate (101) on both sides. The drying controllers (102) on both sides control and drive the coating dryer (107) to start.

7. A double-sided asynchronous coating and drying device according to claim 6, characterized in that: A crossbeam (108) is fixed between the equipment base plates (101) on both sides and above the conveyor belt (112). Several coolers (109) are installed between the top ends of the crossbeam (108), and the coolers (109) have the effect of cooling and drying.

8. A double-sided asynchronous coating and drying device according to claim 7, characterized in that: An arc-shaped guide strip (116) is installed between one end of the crossbar (108) and the guide plate (106).

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