Coating and curing apparatus for surface hardening treatment of solid PC sheets

Abstract

This utility model belongs to the field of PC solid board surface hardening treatment technology, and discloses a coating and curing device for PC solid board surface hardening treatment. It includes a frame with two sets of corresponding conveyor platforms mounted on it. A coating mechanism is located between the two conveyor platforms, and a recovery component is located below the coating mechanism. The air required by the air knife passes through the filter and adsorption component to remove dust particles from the air, preventing damage to the coating on the PC solid board surface. The exhaust gas generated during curing is also introduced into the filter and adsorption component to purify the exhaust gas, preventing impact on air quality and the health of workers. The recovery component recovers coating that is not adhered to the PC board to the greatest extent possible. Simultaneously, multiple layers of filters are installed in the collection tank to filter the recovered coating, removing any impurities and particles that may be mixed in, facilitating the recycling and reuse of the coating.

Description

Technical Field

[0001] This utility model belongs to the field of PC solid board surface hardening treatment technology, specifically a coating and curing device for PC solid board surface hardening treatment. Background Technology

[0002] PC solid sheet, also known as polycarbonate solid sheet or endurance sheet, is an engineering plastic sheet with polycarbonate as its main component. Surface hardening treatment of PC solid sheet is a technology that enhances the surface hardness and wear resistance of PC solid sheet through specific methods. It can improve wear resistance, enhance weather resistance, improve optical properties, and enhance chemical stability. After hardening treatment, the service life of PC solid sheet is extended, and it can better maintain the smoothness and aesthetics of its appearance, thus broadening its application range and enabling it to be used in occasions with higher requirements for surface hardness and wear resistance.

[0003] The photocuring process for solid PC sheets is based on the photochemical reaction of photocurable resin. During the coating process, a photocurable coating containing photoinitiators, reactive diluents, and other components is evenly coated onto the surface of the solid PC sheet. When exposed to ultraviolet (UV) light of a specific wavelength, the photoinitiator absorbs the light energy and generates active species such as free radicals or cations. These species initiate polymerization and cross-linking reactions of unsaturated double bonds or other active groups in the photocurable resin, thereby enabling the coating to cure rapidly in a short time and form a hard, wear-resistant, chemically resistant, and optically sound cured film on the surface of the solid PC sheet.

[0004] In existing technologies, the air knife of the coating curing device usually draws in air directly from the outside, which can easily cause air containing some dust particles to adhere to the coating, affecting the performance and appearance of the coating. Secondly, the curing process generates certain waste gas, which affects air quality and the health of workers.

[0005] Therefore, a coating curing device for surface hardening treatment of solid PC boards is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a coating and curing device for surface hardening treatment of solid PC boards, which has the advantages of purifying the air required by the air knife and the waste gas generated during curing.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a coating and curing device for surface hardening treatment of PC solid board, including a frame, on which two sets of conveying platforms are installed in a corresponding manner, a coating mechanism is arranged between the two conveying platforms, a recycling component is arranged below the coating mechanism, an air knife-assisted leveling component is arranged behind the coating mechanism, and a curing mechanism is arranged behind the air knife-assisted leveling component.

[0008] The air knife-assisted leveling component includes a mounting frame, an air duct installed inside the mounting frame, an air outlet on the air duct, an air pump connected to the air duct via a pipe, an ion generator connected to the inlet of the air pump via a pipe, a filter adsorption component connected to the inlet of the ion generator via a pipe, and a light curing mechanism connected to the inlet of the filter adsorption component via a pipe.

[0009] Preferably, the recycling component includes a return trough, the bottom of which is connected to a collection trough, and the inner wall of the collection trough is provided with multiple layers of filter screens.

[0010] Preferably, a return pump is connected to one side of the collection tank near the bottom via a pipe, the outlet of the return pump is connected to a return pipe, and the return pipe is connected to the paint storage tank of the coating mechanism.

[0011] Preferably, the paint storage tank is equipped with a paint stirring mechanism, the paint storage tank is connected to a metering pump via a pipeline, and the outlet of the metering pump is connected to the coating pipe of the coating mechanism via a pipeline.

[0012] Preferably, the paint storage tank is provided with a liquid level window and a filling port.

[0013] Preferably, the filter adsorption assembly includes a housing, inside which two symmetrically arranged meshes are disposed, and the space between the meshes is filled with adsorption filler.

[0014] Preferably, both the coating mechanism and the curing mechanism are equipped with control panels on their tops.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model sets up an air knife-assisted leveling component. The air required by the air knife will pass through the filter adsorption component, thereby removing dust particles in the air and avoiding affecting the coating on the surface of the PC solid board. The exhaust gas generated during light curing will also be introduced into the filter adsorption component, thereby purifying the exhaust gas and avoiding affecting the air quality and the health of the staff.

[0017] 2. This utility model maximizes the recovery of paint that is not attached to the PC board by setting up a recycling component. At the same time, multiple layers of filter screens are set in the collection tank to filter the recovered paint and remove any impurities and particles that may be mixed in, so as to facilitate the recycling and reuse of the paint. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the recycling component of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the air knife-assisted leveling component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the paint storage tank of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the filter adsorption component of this utility model.

[0023] In the picture:

[0024] 1. Frame; 2. Conveyor platform;

[0025] 3. Coating system; 31. Paint storage tank; 32. Metering pump;

[0026] 4. Recycling components; 41. Return tank; 42. Collection tank; 43. Filter screen; 44. Return pump; 45. Return pipe;

[0027] 5. Air knife auxiliary leveling assembly; 51. Mounting bracket; 52. Air duct; 53. Air outlet;

[0028] 54. Air pump; 55. Ion generator;

[0029] 56. Filter adsorption assembly; 561. Housing; 562. Spacing mesh; 563. Adsorption packing material;

[0030] 6. Curing mechanism; 7. Coating mixing mechanism; 8. Control panel. Detailed Implementation

[0031] 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.

[0032] like Figures 1 to 5 As shown, this utility model provides a coating and curing device for surface hardening treatment of PC solid board, including a frame 1, two sets of conveying platforms 2 arranged in a front-to-back manner are installed on the frame 1, a coating mechanism 3 is arranged between the two conveying platforms 2, a recycling component 4 is arranged below the coating mechanism 3, an air knife-assisted leveling component 5 is arranged behind the coating mechanism 3, and a curing mechanism 6 is arranged behind the air knife-assisted leveling component 5.

[0033] The air knife-assisted leveling component 5 includes a mounting bracket 51. An air duct 52 is installed inside the mounting bracket 51. An air outlet 53 is provided on the air duct 52. The air duct 52 is connected to an air pump 54 through a pipe. The inlet of the air pump 54 is connected to an ion generator 55 through a pipe to eliminate static electricity and prevent the adsorption of dust particles. The inlet of the ion generator 55 is connected to a filter adsorption component 56 through a pipe. The inlet of the filter adsorption component 56 is connected to the curing mechanism 6 through a pipe. The air required by the air knife will pass through the filter adsorption component 56, thereby removing dust particles in the air and preventing them from affecting the coating on the surface of the PC solid board. The exhaust gas generated during curing will also be introduced into the filter adsorption component 56, thereby purifying the exhaust gas and preventing it from affecting air quality and the health of workers.

[0034] Specifically, the recycling component 4 includes a return tank 41, the bottom of which is connected to a collection tank 42. The inner wall of the collection tank 42 is provided with multiple layers of filter screens 43. The recycling component 4 recovers the paint that is not attached to the PC board to the greatest extent. At the same time, the collection tank 42 is provided with multiple layers of filter screens 43 to filter the recovered paint and remove any impurities and particles that may be mixed in, so as to facilitate the recycling and reuse of the paint.

[0035] Furthermore, a return pump 44 is connected to one side of the collection tank 42 near the bottom via a pipe. The outlet of the return pump 44 is connected to a return pipe 45, which is connected to the paint storage tank 31 of the coating mechanism 3, so that the filtered paint is returned to the paint storage tank 31.

[0036] Furthermore, a paint mixing mechanism 7 is installed on the paint storage tank 31. The paint mixing mechanism 7 keeps the paint in a uniform state during storage to prevent sedimentation and stratification. The paint storage tank 31 is connected to a metering pump 32 through a pipe, and the outlet of the metering pump 32 is connected to the coating pipe of the coating mechanism 3 through a pipe.

[0037] It is worth noting that the paint storage tank 31 is equipped with a liquid level window and a filling port. The liquid level window makes it easy to observe the liquid level of the paint inside the paint storage tank 31, and the filling port makes it easy to add paint.

[0038] It is worth noting that the filter adsorption component 56 includes a housing 561, inside which two symmetrically arranged partitions 562 are provided, and the space between the partitions 562 is filled with adsorption filler 563. The adsorption filler 563 can be activated carbon, which adsorbs organic pollutants in the photopolymerization waste gas on its surface, thereby achieving the purpose of purifying the waste gas.

[0039] It is worth mentioning that both the coating mechanism 3 and the curing mechanism 6 are equipped with control panels 8 on their tops, which are used to control and adjust the coating mechanism 3 and the curing mechanism 6.

[0040] The metering pump 32, the reflux pump 44, and the air pump 54 are existing technologies and will not be described in detail. In addition, this utility model also includes a power supply, a controller, and a switch, which are not the main technical points of this patent and will not be described in detail.

[0041] Working principle and process: The solid PC sheet is placed at the front end of the conveyor platform 2. The conveyor platform 2 transports the solid PC sheet to the coating mechanism 3. The paint is discharged from the paint storage tank 31, passes through the metering pump 32 and the coating pipe, and is then discharged through the nozzle, thus coating the surface of the solid PC sheet. The unadhered paint falls into the return tank 41 of the recovery component 4, and then into the collection tank 42. The filter screen 43 in the collection tank 42 can filter impurities and particles mixed in with the paint. The return pump 44 is started to guide the filtered paint into the paint storage tank 31. Under the conveying of the conveyor platform 2, the solid PC sheet is transported to the air knife-assisted leveling component 5. The air pump 54 is started, and the airflow passes through the air duct 52 and is discharged from the air outlet 53. The uniform airflow blown out by the air knife acts on the coating surface, causing the coating to flow quickly and evenly under the combined action of gravity and surface tension, effectively eliminating flow marks and bubbles, and significantly improving the smoothness of the coating. Then, the PC solid board is transported to the curing mechanism 6, where the coating is cured under the action of ultraviolet lamp. The waste gas generated during the curing process is introduced into the filter adsorption component 56, purified by the adsorption filler 563, and then introduced into the ion generator 55. The purified air is introduced into the air pump 54 along with the ions to avoid dust particles in the air from affecting the coating on the surface of the PC solid board.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] 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 curtain coating and light curing device for the surface hardening treatment of PC solid plates, comprising a frame (1), characterized in that: Two sets of conveyor platforms (2) are installed on the frame (1) and are arranged in a front-to-back manner. A coating mechanism (3) is arranged between the two conveyor platforms (2). A recycling component (4) is arranged below the coating mechanism (3). An air knife-assisted leveling component (5) is arranged on the rear side of the coating mechanism (3). A light curing mechanism (6) is arranged on the rear side of the air knife-assisted leveling component (5). The air knife-assisted leveling component (5) includes a mounting bracket (51), an air duct (52) is installed inside the mounting bracket (51), an air outlet (53) is provided on the air duct (52), an air pump (54) is connected to the air duct (52) through a pipe, an ion generator (55) is connected to the inlet of the air pump (54) through a pipe, a filter adsorption component (56) is connected to the inlet of the ion generator (55) through a pipe, and a light curing mechanism (6) is connected to the inlet of the filter adsorption component (56) through a pipe.

2. The PC solid plate surface hardening treatment with showering and light curing device according to claim 1, characterized in that: The recycling component (4) includes a return tank (41), the bottom of which is connected to a collection tank (42), and the inner wall of the collection tank (42) is provided with multiple layers of filter screens (43).

3. The PC solid plate surface hardening treatment with showering and light curing device according to claim 2, characterized in that: A return pump (44) is connected to one side of the collection tank (42) near the bottom via a pipe. The outlet of the return pump (44) is connected to a return pipe (45), and the return pipe (45) is connected to the paint storage tank (31) of the coating mechanism (3).

4. The coating and curing apparatus for surface hardening treatment of solid PC boards according to claim 3, characterized in that: The paint storage tank (31) is equipped with a paint stirring mechanism (7), and the paint storage tank (31) is connected to a metering pump (32) through a pipe. The outlet of the metering pump (32) is connected to the coating pipe of the coating mechanism (3) through a pipe.

5. The coating and curing apparatus for surface hardening treatment of solid PC boards according to claim 3, characterized in that: The paint storage tank (31) is equipped with a liquid level window and a filling port.

6. The coating and curing apparatus for surface hardening treatment of solid PC boards according to claim 1, characterized in that: The filter adsorption assembly (56) includes a housing (561), inside which two symmetrically arranged partitions (562) are provided, and the space between the partitions (562) is filled with adsorption filler (563).

7. The coating and curing apparatus for surface hardening treatment of solid PC boards according to claim 1, characterized in that: Both the coating mechanism (3) and the curing mechanism (6) are equipped with control panels (8) on their tops.

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