Ultrasonic coating device

Abstract

The utility model relates to the technical field of coating devices, and discloses an ultrasonic coating device. The device comprises a first transmission group, a first coating assembly, a first drying assembly, a second transmission group, a second coating assembly and a second drying assembly through which a base material sequentially passes, the second drying assembly is arranged below the first coating assembly, and the second coating assembly is arranged below the first drying assembly. The utility model solves the problems that the existing coating equipment is not uniform easily, the coating weight is difficult to adjust, the coating is thick, the binding force of a base material is poor, and the product quality is reduced. Besides, the problems that single-face coating is achieved at a time through coating equipment, and production efficiency is low are solved, the spraying thickness can be accurately mastered, the spraying thickness can be adjusted by being matched with the thickness of a base material, the ideal requirement is met, and the stability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating devices, in particular to an ultrasonic coating device. Background Art

[0002] Coating equipment refers to equipment that coats paste polymers, molten polymers or polymer solutions onto various roll substrates such as plastic substrates, paper, anodized aluminum, cloth and leather for gluing and composite processing. It is widely used in various fields and has broad development prospects.

[0003] The commonly used coating equipment is the anilox roller gluing coating equipment, which mainly uses an anilox roller for gluing. When using an anilox roller for coating, the coating amount is mainly related to the depth of the grooves of the anilox roller and the precision of the glue type; the deeper the groove depth of the anilox roller, the more glue is transferred from the grooves to the substrate; conversely, the shallower the groove depth of the anilox roller, the less glue is transferred to the substrate. In addition, the coating amount is also closely related to the viscosity of the glue. Too much or too little glue viscosity is not conducive to the normal transfer of glue. High glue viscosity is not easy to transfer, and too thin glue is easy to flow, making the glue uneven and prone to longitudinal or transverse water lines. Therefore, once the coating anilox roller and the type of glue are determined, it is difficult to adjust the coating amount, which is also the main reason why the application of anilox rollers is limited.

[0004] Therefore, the existing coating equipment is prone to unevenness, the coating amount is difficult to adjust, and the coating is thick, which will eventually lead to poor substrate bonding and reduce product quality. In addition, the coating equipment can only achieve single-sided coating at a time, and the production efficiency is low. Utility Model Content

[0005] In view of the above problems, the purpose of the present invention is to provide an ultrasonic coating device to solve the technical problems raised in the above background technology; to achieve the above purpose, the present invention provides the following technical solutions: an ultrasonic coating device, comprising: a first transmission group, a first coating component, a first drying component, a second transmission group, a second coating component and a second drying component through which a substrate passes in sequence, a second drying component is arranged below the first coating component, and a second coating component is arranged below the first drying component;

[0006] The first coating component and the second coating component have the same structure. The first coating component includes a first motor, a cam mechanism, a first slide rail, a first slider, an ultrasonic nozzle and a nozzle fixing frame. The cam mechanism is fixedly connected to the motor output shaft. The top of the cam mechanism is rotatably connected to the first slide rail. The first slide rail is slidably connected to the first slider. The first slider is arranged on one side of the bottom end of the nozzle fixing frame; second sliders are arranged on both sides of the nozzle fixing frame, and a plurality of ultrasonic nozzles are arranged at the bottom of the nozzle fixing frame. The second slider is slidably connected to the second slide rail, and the second slide rail is fixedly connected to the column rod.

[0007] Preferably, the nozzle fixing frame includes a bracket, a plurality of ultrasonic nozzles are fixedly connected to the bottom of the bracket, and second sliders fixedly connected to the bottom of the bracket are provided on both sides of the ultrasonic nozzles. One end of the bracket is fixedly connected to an L-shaped plate, and the bottom of the L-shaped plate is fixedly connected to a first slider, and the first slider is slidably connected to a first slide rail.

[0008] Preferably, a reinforcement column is provided at the top of the cam mechanism, and the reinforcement column is connected to the first slide rail bearing.

[0009] Preferably, the first transmission group includes a first transmission roller and a second transmission roller, the first transmission roller and the second transmission roller are arranged up and down, and the second transmission roller is arranged close to the first coating component; the second transmission group includes a third transmission roller and a fourth transmission roller, the third transmission roller and the fourth transmission roller are arranged up and down, the third transmission roller is arranged close to the first drying component, and the fourth transmission roller is arranged close to the second coating component.

[0010] Preferably, the first drying component and the second drying component have the same structure and both include a shell in which a wind knife group and a roller group are arranged. The gap between the wind knife group and the roller group is used to pass the substrate, and the wind knives in the wind knife group and the rollers in the roller group are arranged vertically correspondingly.

[0011] Preferably, the roller group includes a plurality of rollers, the number of the rollers is set in odd number and arranged in an arch shape, and the vertical height difference between the top ends of adjacent rollers does not exceed 1 mm.

[0012] An ultrasonic coating method comprising:

[0013] S1, the substrate is transported to the first coating assembly through the first transmission group, and the surface A of the substrate is sprayed;

[0014] S2, drying by a first drying component;

[0015] S3, the rear substrate is transported to the second coating assembly through the second transmission group, and the surface B of the substrate is sprayed;

[0016] S4, and finally drying by a second drying assembly.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model coating device uses an ultrasonic nozzle to perform swing-type double-sided spraying under the reciprocating action of the cam mechanism driven by the motor. The amount of spraying, the thickness of spraying, and the range of spraying can be adjusted. The mist spraying is more uniform and delicate, and the bonding force of the substrate is improved. By adjusting the amount of spraying, the spraying thickness can be accurately controlled, and the spraying thickness can be adjusted in accordance with the thickness of the substrate to achieve the ideal requirements and improve the stability of the equipment.

[0019] The L-shaped plate is used to reinforce the structural strength between the bracket and the first slider. The column is connected to the second slide rail to provide support for the coating device and ensure the reciprocating swing of the ultrasonic nozzle in the coating device; the motor speed is different, the thickness and uniformity of the spraying are also different, and the speed is adaptively adjusted according to actual needs; the reinforcement column is movably connected to the first slide rail bearing, and the rotating connection makes the swing operation of the nozzle fixing frame more stable and has a larger load capacity;

[0020] Because the air outlet of the wind knife is opposite to the roller, the rollers are arranged in an arch shape, which can completely disperse the wind blown by the wind knife. After the substrate is dried, the surface is still flat and smooth. If it is arranged horizontally, the substrate cannot be dispersed due to the concentrated wind force, which will form water ripples, and the substrate will be unevenly coated after drying. The one-to-one correspondence between the wind knife and the roller ensures that the wind can be evenly dispersed and dried. If the wind knife is offset and located between adjacent rollers, the substrate will bend into the gap between the adjacent rollers, which will cause the substrate to bend on the one hand, and uneven coating and difficulty in drying on the other hand. The thin coating on the roller will result in unqualified products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Figure 2 is a diagram of the coating components.

[0022] Figure 2 This is the overall structure diagram of the coating device.

[0023] Figure 3 This is a structural diagram of the first coating component.

[0024] 101. first motor; 102. cam mechanism; 103. first slider; 104. first slide rail; 105. L-shaped plate; 106. bracket; 107. reinforcement column; 108. column rod; 109. ultrasonic nozzle; 110. second slider; 111. second slide rail; 112. first transmission roller; 113. second transmission roller; 114. third transmission roller; 115. fourth transmission roller; 116. first shell; 117. second shell; 118. second motor; 119. first roller group; 120. first wind knife group; 121. second roller group; 122. second wind knife group. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0027] See also Figure 1-Figure 3 , an ultrasonic coating device, the substrate sequentially passes through a first transmission group, a first coating component, a first drying component, a second transmission group, a second coating component and a second drying component, the second drying component is arranged below the first coating component, and the second coating component is arranged below the first drying component;

[0028] The first coating assembly and the second coating assembly have the same structure. The first coating assembly includes a first motor 101, a cam mechanism 102, a first slide rail 104, a first slider 103 and a nozzle fixing frame. The cam mechanism 102 is fixedly connected to the output shaft of the first motor 101. The top of the cam mechanism 102 is rotatably connected to the first slide rail 104. The first slide rail 104 is slidably connected to the first slider 103. The first slider 103 is arranged on one side of the bottom end of the nozzle fixing frame. Second sliders 110 are arranged on both sides of the nozzle fixing frame. The second slider 110 is slidably connected to the second slide rail 111. A plurality of ultrasonic nozzles 109 are arranged at the bottom of the nozzle fixing frame. The second slide rail 111 is fixedly connected to the column 108. The column 108 is connected to the second slide rail 111 to provide support for the coating device and ensure the reciprocating swing of the ultrasonic nozzle 109 in the coating device. The motor speed is different, and the thickness and uniformity of the spraying are also different. According to actual needs, the speed is adaptively adjusted. The second coating assembly is provided with a second motor 118 that is the same as the first motor 101.

[0029] The nozzle fixing frame includes a bracket 106, a plurality of ultrasonic nozzles 109 are fixedly connected to the bottom of the bracket 106, and second sliders 110 are fixedly connected to the bottom of the bracket 106 on both sides of the ultrasonic nozzles 109. One end of the bracket 106 is fixedly connected to the L-shaped plate 105, and the bottom of the L-shaped plate 105 is fixedly connected to the first slider 103, and the first slider 103 is slidably connected to the first slide rail 104. The L-shaped plate 105 is provided to strengthen the structural strength between the bracket 106 and the first slider 103.

[0030] A reinforcing column 107 is provided at the top of the cam mechanism 102, and the reinforcing column 107 is connected to the bearing of the first slide rail 104; the reinforcing column 107 is movably connected to the bearing of the first slide rail 104, and the rotating connection makes the swinging operation of the nozzle fixing frame more stable and has a larger load capacity.

[0031] The first drying component has the same structure as the second drying component. The first drying component includes a first shell 116, a first air knife group 120, a first roller group 119, a second shell 117, a second air knife group 122, and a second roller group 121. The first shell 116 is provided with a first air knife group 120 and a first roller group 119. The gap between the first air knife group 120 and the first roller group 119 is used to pass the substrate, and the air knives in the first air knife group 120 and the rollers in the first roller group 119 are arranged vertically correspondingly.

[0032] The first roller group 119 includes a plurality of rollers, the number of which is odd and arranged in an arch shape, and the vertical height difference between the tops of adjacent rollers does not exceed 1 mm. Since the air outlet of the first wind knife group 120 is arranged opposite to the first roller group 119, all rollers in the first roller group 119 are arranged in an arch shape, which can completely disperse the wind blown by the wind knife, and the surface of the substrate to be dried remains flat and smooth after drying; if it is arranged in a horizontal direction, the substrate to be dried cannot be dispersed due to the concentrated wind force, thereby forming water ripples, and the substrate is unevenly coated after drying; if it is arranged in an inverted arch shape, the middle area of ​​the substrate cannot be dried, or the coating in the middle area of ​​the substrate becomes thicker, etc.

[0033] The wind knives and rollers in the first wind knife group 120 and the first roller group 119 are arranged in a one-to-one correspondence to ensure that the wind can disperse and dry the substrate evenly. If the wind knife is set at an offset position and is located between adjacent rollers, the substrate at that location will bend into the gap between the adjacent rollers, which will cause the substrate to bend on the one hand and cause uneven coating and difficulty in drying on the other hand. The coating on the roller will be thin, resulting in unqualified products.

[0034] Working principle: The ultrasonic coating device dries the substrate in the following order: the substrate is transported to the first coating component through the first transmission group, and the A side of the substrate is sprayed, then dried by the first drying component, and then the substrate is transported to the second coating component through the second transmission group, and the B side of the substrate is sprayed, and finally dried by the second drying component.

[0035] The utility model coating device uses an ultrasonic nozzle 109 to perform swing-type double-sided spraying under the reciprocating action of the motor-driven cam mechanism 102, and both sides of the substrate can be coated; the amount of spraying, the thickness of spraying, and the range of spraying can be adjusted, and the mist spraying is more uniform and delicate, which improves the bonding force of the substrate. By adjusting the amount of spraying, the spraying thickness can be accurately controlled, and the spraying thickness can be adjusted in accordance with the thickness of the substrate to achieve the ideal requirements and improve the stability of the equipment.

[0036] The first transmission group includes a first transmission roller 112 and a second transmission roller 113, which are arranged up and down, and the second transmission roller 113 is arranged close to the first coating assembly; the second transmission group includes a third transmission roller 114 and a fourth transmission roller 115, which are arranged up and down, and the third transmission roller 114 is arranged close to the first drying assembly, and the fourth transmission roller 115 is arranged close to the second coating assembly. The rotation direction of the first transmission group and the second transmission group is described as follows: the first transmission roller 112 and the second transmission roller 113 rotate clockwise, and the third transmission roller 114 and the fourth transmission roller 115 rotate counterclockwise. The substrate transmission passes through the first transmission roller 112, the second transmission roller 113, the third transmission roller 114 and the fourth transmission roller 115 in the order of rotation.

[0037] The diameter of each transmission roller can be adjusted in the range of φ75mm-φ300mm. The first transmission roller 112 and the second transmission roller 113 are vertically arranged on the right side of the first coating assembly; the axis center distance between the first transmission roller 112 and the second transmission roller 113 can be adjusted in the range of 200mm-900mm.

[0038] The third transmission roller 114 and the fourth transmission roller 115 are vertically arranged on the left side of the second coating assembly, and the axial center distance between the third transmission roller 114 and the fourth transmission roller 115 can be adjusted in the range of 200mm-900mm. The axial center distance between the first transmission roller 112 and the third transmission roller 114 can be adjusted in the range of 400mm-20000mm.

[0039] Second slide rails 111 are respectively provided at both ends of the nozzle fixing frame, and a column rod 108 is provided under the second slide rail 111 to increase the stability and support strength of the fixing frame and also to cooperate with the swing of the nozzle fixing frame. The swing range of the second slide rail 111 is 0mm-100mm.

[0040] During the swinging of the nozzle fixing frame, multiple ultrasonic nozzles 109 are sprayed. The number of ultrasonic nozzles 109 ranges from 1 to N. Each of them is independent and has an independent control line. The spraying range and spraying height can be adjusted. The spraying height can be adjusted in the range of 20 mm to 100 mm. The spraying thickness can also be adjusted. The thinnest wet film thickness can reach 0.3 μm. The ultrasonic nozzles (109) are independently controlled, and the metering value of any ultrasonic nozzle (109) spraying can be controlled separately.

[0041] The first drying component and the second drying component are used for drying. After spraying, the air knife group is used for drying to make the glue dry quickly, improve the bonding strength of the substrate, and facilitate subsequent processing. The length of the first drying component and the second drying component can be adjusted in the range of 100mm-18000mm, and the first roller group 119 and the second roller group 121 are respectively arranged therein. The multiple rollers are arranged in an arch shape, which is conducive to stretching the substrate, making the substrate more closely attached and having a better drying effect.

[0042] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

Claims

1. An ultrasonic coating device, characterized in that: include: The substrate sequentially passes through a first transmission group, a first coating assembly, a first drying assembly, a second transmission group, a second coating assembly, and a second drying assembly, wherein a second drying assembly is disposed below the first coating assembly, and a second coating assembly is disposed below the first drying assembly; The first coating component and the second coating component have the same structure. The first coating component comprises a first motor (101), a cam mechanism (102), a first slide rail (104), a first slider (103), an ultrasonic nozzle (109) and a nozzle fixing frame. The cam mechanism (102) is fixedly connected to the output shaft of the first motor (101). The top end of the cam mechanism (102) is rotatably connected to the first slide rail (104). The first slide rail (104) is slidably connected to the first slider (103). The first slider (103) is arranged on one side of the bottom end of the nozzle fixing frame. Second sliders (110) are arranged on both sides of the nozzle fixing frame. A plurality of ultrasonic nozzles (109) are arranged at the bottom of the nozzle fixing frame. The second slider (110) is slidably connected to the second slide rail (111). The second slide rail (111) is fixedly connected to the column rod (108).

2. The ultrasonic coating device according to claim 1, characterized in that: The nozzle fixing frame comprises a bracket (106), a plurality of ultrasonic nozzles (109) are fixedly connected to the bottom of the bracket (106), and second sliders (110) are fixedly connected to the bottom of the bracket (106) on both sides of the ultrasonic nozzles (109). One end of the bracket (106) is fixedly connected to an L-shaped plate (105), and the bottom of the L-shaped plate (105) is fixedly connected to a first slider (103), and the first slider (103) is slidably connected to a first slide rail (104).

3. The ultrasonic coating device according to claim 2, characterized in that: A reinforcing column (107) is provided at the top end of the cam mechanism (102), and the reinforcing column (107) is connected to the bearing of the first slide rail (104).

4. The ultrasonic coating device according to claim 1, characterized in that: The first transmission group comprises a first transmission roller (112) and a second transmission roller (113), the first transmission roller (112) and the second transmission roller (113) are arranged vertically, and the second transmission roller (113) is arranged close to the first coating component; the second transmission group comprises a third transmission roller (114) and a fourth transmission roller (115), the third transmission roller (114) and the fourth transmission roller (115) are arranged vertically, the third transmission roller (114) is arranged close to the first drying component, and the fourth transmission roller (115) is arranged close to the second coating component.

5. The ultrasonic coating device according to claim 1, characterized in that: The first drying component and the second drying component have the same structure and both include a shell, in which a wind knife group and a roller group are arranged. The gap between the wind knife group and the roller group is used to pass the substrate, and the wind knives in the wind knife group and the rollers in the roller group are arranged vertically correspondingly.

6. The ultrasonic coating device according to claim 5, characterized in that: The roller group includes a plurality of rollers, the number of which is odd and arranged in an arch shape, and the vertical height difference between the top ends of adjacent rollers does not exceed 1 mm.

7. The ultrasonic coating device according to claim 1, characterized in that: The ultrasonic nozzles (109) are independently controlled, and the metering value of the spraying of any ultrasonic nozzle (109) can be individually controlled.

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