Paint coating equipment and paint coating method for SPC floor production

Abstract

The invention discloses paint coating equipment and a paint coating method for SPC floor production, and belongs to the technical field of SPC floor production. The paint coating equipment for SPC floor production comprises a device support and a moving frame, a coating roller is installed in an upper supporting frame, the two ends of the moving frame are fixedly connected with moving blocks, and an electromagnetic valve and a humidity monitoring sensor are arranged at the lower end of an auxiliary cover. According to the paint coating equipment, the problems that the number of coating rollers adopted by existing paint coating equipment is large, the amount of paint on the surfaces of the coating rollers cannot be judged, and the uniform coating effect is affected are solved, and the coating rollers move to drive a moving frame and an auxiliary cover outside the moving frame to move synchronously; the electromagnetic valve and the humidity monitoring sensor in the auxiliary cover detect the humidity of the coating roller and supplement coating paint at any time, the paint amount on the surface of the coating roller is kept all the time, and the surface of the SPC floor to be machined is evenly coated.

Description

Technical Field

[0001] The present invention relates to the technical field of SPC floor production, and in particular to paint coating equipment and a coating method for SPC floor production. Background Art

[0002] In order to improve the effect of SPC floor after installation, more and more floor manufacturers have begun to use the paint process to apply paint with a color close to the floor color film on the polymer floor paint surface through the coating gun head to improve the display effect of SPC floor after installation.

[0003] A Chinese patent with announcement number CN215354414U discloses a paint coating device used in floor production, including a lower workbench, an upper workbench, a coating component and a drying component. The patent can process base plates of different thicknesses through a telescopic cylinder. Through the coordination between the first coating roller, the second coating roller, the third coating roller, the fourth coating roller, the first belt, the second belt, the first motor and the second motor, the paint coating amount can be accurately controlled compared to the general manual coating on the market.

[0004] In actual use, the paint coating equipment of the above patent uses a large number of coating rollers, and the amount of paint on the surface of the coating rollers cannot be judged, which affects the uniformity of the coating effect. Summary of the Invention

[0005] The object of the present invention is to provide a paint coating device and a coating method for SPC floor production, which solves the problem that the paint coating device proposed in the above background technology uses a large number of coating rollers during actual use, and the amount of paint on the surface of the coating roller cannot be judged, which affects the uniformity of the coating effect.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a paint coating device for SPC floor production, comprising a device bracket and a movable frame, the movable frame being arranged above the device bracket, an upper support frame being installed at the upper end of the device bracket, a coating roller being installed inside the upper support frame, moving blocks being installed at both ends of the coating roller, the moving blocks being embedded in the upper support frame and slidably connected to the upper support frame, both ends of the movable frame being fixedly connected to the moving blocks, and an auxiliary cover being installed at the lower end of the movable frame, a paint tank being provided above the auxiliary cover, and a solenoid valve and a humidity monitoring sensor being provided at the lower end of the auxiliary cover, the solenoid valve and humidity monitoring sensor inside the auxiliary cover detecting the humidity of the coating roller, and replenishing the coating paint at any time, always maintaining the amount of paint on the surface of the coating roller, so that the coating roller can evenly coat the surface of the SPC floor to be processed during the movement of the surface of the SPC floor to be processed.

[0007] Preferably, electric cylinders are installed on both sides of the device bracket, the upper end of the electric cylinder is fixedly connected to the lower end of the upper support bracket, and a sliding rod is provided at the lower end of the upper support bracket, and the sliding rod extends into the interior of the device bracket and is slidably connected to the device bracket, the device bracket is connected to the liftable upper support bracket, and the upper support bracket, the movable bracket and the coating roller are driven to rise and fall synchronously by the electric cylinder, and the appropriate height is adjusted to adapt to the thickness of the SPC floor to be processed according to the product type of the SPC floor to be processed, the upper end of the upper support bracket is welded with a guide frame, and the movable frame is slidably connected to the upper support bracket through the guide frame.

[0008] Preferably, protective baffles are provided on both sides of the interior of the device bracket, the protective baffles are welded to the outside of the guide rods, the outside of the guide rods are slidably connected to the mounting frame, and the inside of the mounting frame is rotatably connected to the transmission roller through a bearing.

[0009] Preferably, an SPC floor to be processed is arranged above the transmission roller, and the lower end of the SPC floor to be processed is rollingly connected to the surface of the transmission roller. A material receiving box is arranged below the mounting frame, and the material receiving box is used to collect paint flowing out of the surface of the SPC floor to be processed. By adjusting the number of mounting frames and transmission rollers, the mounting frames are fixed under the corresponding positions of the SPC floor to be processed, so that the transmission work can be carried out through the transmission roller, and the overflowed paint is diverted through the gap between the mounting frame and the transmission roller and the device bracket, and collected through the material receiving box, so as to prevent the paint from being dispersed and affecting the production environment, and adapt to long-term work needs.

[0010] Preferably, an integrally formed positioning groove is provided inside the upper support frame, a threaded screw is installed inside the positioning groove, both ends of the threaded screw are rotatably connected to the upper support frame through bearings, a reduction motor is installed at one end of the upper support frame, and the motor shaft of the reduction motor passes through the upper support frame and is fixedly connected to the threaded screw through a coupling.

[0011] Preferably, the threaded screw passes through the moving block and is threadedly connected to the moving block, the moving block is slidably connected to the upper support frame through a positioning slide groove, a rotating shaft is installed between the moving block and the coating roller, the coating roller is rotatably connected to the moving block through the rotating shaft, the reduction motor drives the threaded screw to rotate, driving the moving block to move in the positioning slide groove, and the moving block simultaneously drives the moving frame and the coating roller to move in the upper support frame. The adjustment method is simple, which is convenient for continuous coating work and convenient for reciprocating repeated coating.

[0012] Preferably, the interior of the paint can is filled with high-pressure gas, the movable frame is fixedly connected to the paint can, and a material guide pipe is provided at the lower end of the paint can, a diverter box is installed at the lower end of the material guide pipe, and the diverter box is embedded in the interior of the auxiliary cover and fixedly connected to the auxiliary cover. By filling the paint can with high-pressure gas, the solenoid valve is opened, and the paint will quickly enter the diverter box, and by setting multiple solenoid valves for multi-directional discharge, paint is applied to multiple positions of the coating roller.

[0013] Preferably, a scraper plate is fixedly installed on the lower end of one side of the auxiliary cover, the scraper plate is abutted against the surface of the coating roller, the solenoid valve is sealed with the diversion box, the humidity monitoring sensor is abutted against the surface of the coating roller, and the humidity monitoring sensor and the solenoid valve are electrically connected through a PLC.

[0014] The coating method of the paint coating equipment for SPC floor production includes the following steps:

[0015] Step 1: According to the specifications of the SPC floor to be processed, adjust the number of mounting brackets so that the transmission rollers correspond to the moving position of the SPC floor to be processed;

[0016] Step 2: After pre-treating the SPC floor to be processed, place it on the mounting frame and the upper end of the transmission roller and enter the coating production line;

[0017] Step 3: Store the coating paint in a paint can, fill the paint can with high-pressure gas, detect the humidity of the coating roller through a humidity monitoring sensor, and switch the solenoid valve according to the humidity to accurately control the amount of paint transferred to the coating roller;

[0018] Step 4: The coating roller is pressed against the surface of the SPC floor to be processed. Its surface contacts the surface of the SPC floor to be processed at a uniform speed. Through the coating pressure between the coating roller and the SPC floor to be processed, the paint is evenly transferred to the surface of the SPC floor to be processed. During the coating process, the overflowed paint is collected by the receiving box;

[0019] Step 5: The coated SPC floor to be processed is smoothly sent out of the coating area through the transmission roller.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The paint coating equipment for producing SPC flooring of the present invention adopts a layered design. The movable frame is fixed on the upper end of the coating roller. The movement of the coating roller drives the movable frame and the auxiliary cover outside the movable frame to move synchronously. The solenoid valve and humidity monitoring sensor inside the auxiliary cover detect the humidity of the coating roller and replenish the coating paint at any time to always maintain the amount of paint on the surface of the coating roller. Therefore, the coating roller can evenly coat the surface of the SPC flooring to be processed during its movement.

[0022] 2. The device bracket of the present invention is connected to the liftable upper support frame, and the upper support frame, the movable frame and the coating roller are driven to rise and fall synchronously by the electric cylinder. According to the product type of the SPC floor to be processed, the appropriate height is adjusted to adapt to the thickness of the SPC floor to be processed, and by adjusting the number of the mounting frame and the transmission roller, the mounting frame is fixed under the corresponding position of the SPC floor to be processed, so that the transmission roller can be used for transmission work. The overflowed paint is diverted through the gap between the mounting frame, the transmission roller and the device bracket, and the material is collected through the receiving box to prevent the paint from scattering and affecting the production environment, and is suitable for long-term work. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an axonometric view of the present invention from the front;

[0024] Figure 2 An axonometric view of the present invention from the side;

[0025] Figure 3 For the present invention Figure 2 A partial enlarged view of area A in the middle;

[0026] Figure 4 An axonometric view of the bracket of the device of the present invention from above;

[0027] Figure 5 This is an axonometric view of the movable frame and coating roller of the present invention as viewed from above;

[0028] Figure 6 It is a schematic structural diagram of the movable frame and coating roller of the present invention from a side view.

[0029] In the figure: 1. Device bracket; 101. Electric cylinder; 102. Protective baffle; 103. Mounting frame; 104. Drive roller; 105. Guide rod; 2. Upper support frame; 201. Positioning slide; 202. Lead screw; 203. Guide frame; 204. Reducer motor; 3. Moving frame; 301. Paint can; 302. Auxiliary cover; 303. Material guide pipe; 304. Diverter box; 305. Scraper; 306. Solenoid valve; 307. Humidity monitoring sensor; 4. Coating roller; 401. Rotating shaft; 402. Moving block; 5. Material receiving box; 6. SPC floor to be processed. DETAILED DESCRIPTION

[0030] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] Example 1:

[0032] In order to solve the problem that the existing paint coating equipment uses too many coating rollers in actual use, the amount of paint on the coating roller surface cannot be judged, which affects the uniformity of coating, please refer to Figure 1 、 Figure 5-Figure 6 , this embodiment provides the following technical solutions:

[0033] The paint coating equipment for SPC floor production in this embodiment includes a device bracket 1 and a movable frame 3. The movable frame 3 is arranged above the device bracket 1. The upper end of the device bracket 1 is installed with an upper support frame 2. A coating roller 4 is installed inside the upper support frame 2. Both ends of the coating roller 4 are installed with moving blocks 402. The moving blocks 402 are embedded in the upper support frame 2 and are slidably connected to the upper support frame 2. The paint coating equipment adopts a layered design, and the movable frame 3 is fixed to the upper end of the coating roller 4. The movement of the coating roller 4 drives the movable frame 3 and the auxiliary cover 302 outside the movable frame 3 to move synchronously. Both ends of the movable frame 3 are fixedly connected to the moving block 402, and the lower end of the movable frame 3 is installed with an auxiliary cover 302. A paint tank 301 is provided above the auxiliary cover 302, and a solenoid valve 306 and a humidity monitoring sensor 307 are provided at the lower end of the auxiliary cover 302.

[0034] In fact, the interior of the paint tank 301 is filled with high-pressure gas, the movable frame 3 is fixedly connected to the paint tank 301, and a material guide pipe 303 is provided at the lower end of the paint tank 301, and a diverter box 304 is installed at the lower end of the material guide pipe 303. The diverter box 304 is embedded in the interior of the auxiliary cover 302 and is fixedly connected to the auxiliary cover 302. By filling the paint tank 301 with high-pressure gas, the solenoid valve 306 is opened, and the paint will quickly enter the diverter box 304, and by setting multiple solenoid valves 306 for multi-directional discharge, paint is applied to multiple positions of the coating roller 4.

[0035] Among them, a scraper plate 305 is fixedly installed on the lower end of one side of the auxiliary cover 302, and the scraper plate 305 is in contact with the surface of the coating roller 4. During the rotation of the coating roller 4, the scraper plate 305 contacts the scraper plate 305 to flatten the surface of the coating roller 4, thereby improving the coating effect of the coating roller 4. During continuous operation, the coating effect is better, the solenoid valve 306 is sealed and connected to the diversion box 304, and the humidity monitoring sensor 307 is in contact with the surface of the coating roller 4, and the humidity monitoring sensor 307 and the solenoid valve 306 are electrically connected through the PLC. The solenoid valve 306 and the humidity monitoring sensor 307 inside the auxiliary cover 302 detect the humidity of the coating roller 4 and replenish the coating paint at any time to keep the amount of paint on the surface of the coating roller 4, so that the coating roller 4 can evenly coat the surface of the SPC floor 6 to be processed during its movement on the surface of the SPC floor 6 to be processed.

[0036] Specifically, the paint coating equipment adopts a layered design, with the mobile frame 3 fixed on the upper end of the coating roller 4. The movement of the coating roller 4 drives the mobile frame 3 and the auxiliary cover 302 outside the mobile frame 3 to move synchronously. The solenoid valve 306 and the humidity monitoring sensor 307 inside the auxiliary cover 302 detect the humidity of the coating roller 4 and replenish the coating paint at any time to maintain the amount of paint on the surface of the coating roller 4. In this way, the coating roller 4 can evenly coat the surface of the SPC floor 6 to be processed during its movement.

[0037] Example 2:

[0038] In order to solve the problem that the existing paint coating equipment has poor adjustment effect on the coating roller during actual use, resulting in low efficiency of continuous coating, please refer to Figures 1-4 , this embodiment provides the following technical solutions:

[0039] The paint coating equipment for SPC floor production in this embodiment includes a device bracket 1 and a movable frame 3. The movable frame 3 is arranged above the device bracket 1. The upper end of the device bracket 1 is installed with an upper support frame 2. A coating roller 4 is installed inside the upper support frame 2. Both ends of the coating roller 4 are installed with movable blocks 402. The movable blocks 402 are embedded in the upper support frame 2 and are slidably connected to the upper support frame 2. The paint coating equipment adopts a layered design, and the movable frame 3 is fixed to the upper end of the coating roller 4. The movement of the coating roller 4 drives the movable frame 3 and the auxiliary cover 302 outside the movable frame 3 to move synchronously. Both ends of the movable frame 3 are fixedly connected to the movable block 402.

[0040] Among them, electric cylinders 101 are installed on both sides of the device bracket 1, the upper end of the electric cylinder 101 is fixedly connected to the lower end of the upper support frame 2, and a sliding rod is provided at the lower end of the upper support frame 2, and the sliding rod extends into the interior of the device bracket 1 and is slidably connected to the device bracket 1. The device bracket 1 is connected to the liftable upper support frame 2, and the upper support frame 2, the movable frame 3 and the coating roller 4 are driven to rise and fall synchronously by the electric cylinder 101. According to the product type of the SPC floor 6 to be processed, the appropriate height is adjusted to adapt to the thickness of the SPC floor 6 to be processed. The upper end of the upper support frame 2 is welded with a guide frame 203, and the movable frame 3 is slidably connected to the upper support frame 2 through the guide frame 203.

[0041] In addition, protective baffles 102 are provided on both sides of the interior of the device bracket 1, and the protective baffles 102 are welded to the outside of the guide rod 105, and the outside of the guide rod 105 is slidably connected to the mounting frame 103, and the inside of the mounting frame 103 is rotatably connected to the transmission roller 104 through the bearing.

[0042] It should be noted that, the SPC floor 6 to be processed is arranged above the transmission roller 104, and the lower end of the SPC floor 6 to be processed is rollingly connected to the surface of the transmission roller 104. A material receiving box 5 is provided below the mounting frame 103. The material receiving box 5 is used to collect paint flowing out of the surface of the SPC floor 6 to be processed. By adjusting the number of mounting frames 103 and transmission rollers 104, the mounting frames 103 are fixed at the corresponding positions of the SPC floor 6 to be processed, so that the transmission work can be carried out through the transmission roller 104. The overflowed paint is diverted through the gap between the mounting frame 103, the transmission roller 104 and the device bracket 1, and the material is collected through the material receiving box 5 to prevent the paint from dispersing and affecting the production environment, and adapt to long-term work.

[0043] Furthermore, the interior of the upper support frame 2 is provided with an integrally formed positioning slot 201, and the interior of the positioning slot 201 is provided with a threaded screw 202, and both ends of the threaded screw 202 are rotatably connected to the upper support frame 2 through bearings, and one end of the upper support frame 2 is provided with a reduction motor 204, and the motor shaft of the reduction motor 204 passes through the upper support frame 2 and is fixedly connected to the threaded screw 202 through a coupling, and the threaded screw 202 passes through the moving block 402 and is threadedly connected to the moving block 402, and the moving block 402 is slidably connected to the upper support frame 2 through the positioning slot 201, and a rotating shaft 401 is installed between the moving block 402 and the coating roller 4, and the coating roller 4 is rotatably connected to the moving block 402 through the rotating shaft 401, and the reduction motor 204 drives the threaded screw 202 to rotate, driving the moving block 402 to move in the positioning slot 201, and the moving block 402 simultaneously drives the moving frame 3 and the coating roller 4 to move in the upper support frame 2, and the adjustment method is simple, which is convenient for continuous coating work and convenient for reciprocating repeated coating.

[0044] Specifically, the device bracket 1 is connected to the liftable upper support frame 2, and the upper support frame 2, the movable frame 3 and the coating roller 4 are driven to rise and fall synchronously by the electric cylinder 101. According to the product type of the SPC floor 6 to be processed, the appropriate height is adjusted to adapt to the thickness of the SPC floor 6 to be processed. The reduction motor 204 drives the threaded screw 202 to rotate, driving the movable block 402 to move in the positioning slide 201, and the movable block 402 simultaneously drives the movable frame 3 and the coating roller 4 to move in the upper support frame 2. The adjustment method is simple, which is convenient for continuous coating work and convenient for reciprocating repeated coating. By adjusting the number of the mounting frame 103 and the transmission roller 104, the mounting frame 103 is fixed under the corresponding position of the SPC floor 6 to be processed, so that the transmission work can be carried out through the transmission roller 104. The overflowed paint is diverted through the gap between the mounting frame 103, the transmission roller 104 and the device bracket 1, and the material is collected through the receiving box 5 to prevent the paint from dispersing and affecting the production environment, and adapting to long-term work.

[0045] See also Figures 1-6 The coating method of the paint coating equipment for SPC floor production includes the following steps:

[0046] Step 1: According to the specifications of the SPC floor 6 to be processed, the number of mounting brackets 103 is adjusted so that the transmission rollers 104 correspond to the moving positions of the SPC floor 6 to be processed;

[0047] Step 2: After pre-treating the SPC floor 6 to be processed, place it on the upper end of the mounting frame 103 and the transmission roller 104 and enter the coating production line;

[0048] Step 3: Store the coating paint in the paint tank 301, fill the paint tank 301 with high-pressure gas, detect the humidity of the coating roller 4 through the humidity monitoring sensor 307, and accurately control the amount of paint transferred to the coating roller 4 according to the humidity switch solenoid valve 306, so as to always maintain the amount of paint on the surface of the coating roller 4, so that the coating roller 4 can evenly coat the surface of the SPC floor 6 to be processed during its movement;

[0049] Step 4: The coating roller 4 is pressed against the surface of the SPC floor 6 to be processed, and its surface contacts the surface of the SPC floor 6 to be processed which passes at a uniform speed. Through the coating pressure between the coating roller 4 and the SPC floor 6 to be processed, the paint is evenly transferred to the surface of the SPC floor 6 to be processed. During the coating process, the overflowed paint is collected by the receiving box 5 to prevent the paint from being scattered and affecting the production environment, so as to adapt to long-term work.

[0050] Step 5: The coated SPC floor 6 to be processed is smoothly sent out of the coating area through the transmission roller 104.

[0051] Working principle: When in use, according to the specifications of the SPC floor 6 to be processed that needs coating treatment, the number of mounting frames 103 is adjusted so that the transmission roller 104 corresponds to the moving position of the SPC floor 6 to be processed. By adjusting the number of mounting frames 103 and transmission rollers 104, the mounting frames 103 are fixed under the corresponding position of the SPC floor 6 to be processed. After the SPC floor 6 to be processed is pre-treated, it is placed on the upper end of the mounting frames 103 and transmission rollers 104 and enters the coating production line. The reduction motor 204 drives the threaded screw 202 to rotate, driving the moving block 402 to move in the positioning slide 201. The moving block 402 simultaneously drives the moving frame 3 and the coating roller 4 to move in the upper support frame 2. The solenoid valve 306 and the humidity monitoring sensor 307 inside the auxiliary cover 302 detect the humidity of the coating roller 4 and The coating paint is replenished at any time, and the amount of paint on the surface of the coating roller 4 is always maintained, so that the coating roller 4 can evenly coat the surface of the SPC floor 6 to be processed during the movement of the surface of the SPC floor 6 to be processed. The coating roller 4 is pressed on the surface of the SPC floor 6 to be processed, and its surface is in contact with the surface of the SPC floor 6 to be processed passing at a uniform speed. The paint is evenly transferred to the surface of the SPC floor 6 to be processed through the coating pressure between the coating roller 4 and the SPC floor 6 to be processed. The overflowed paint is diverted through the gap between the mounting frame 103 and the transmission roller 104 and the device bracket 1, and the material is collected through the receiving box 5 to prevent the paint from dispersing and affecting the production environment. It is suitable for long-term work, and the SPC floor 6 to be processed after coating is smoothly sent out of the coating area through the transmission roller 104.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0053] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A paint coating device for SPC floor production, comprising a device support (1) and a mobile frame (3), characterized in that: The movable frame (3) is arranged above the device support (1); an upper support frame (2) is installed at the upper end of the device support (1); a coating roller (4) is installed inside the upper support frame (2); both ends of the coating roller (4) are installed with movable blocks (402); the movable blocks (402) are embedded in the upper support frame (2) and are slidably connected to the upper support frame (2); both ends of the movable frame (3) are fixedly connected to the movable blocks (402); an auxiliary cover (302) is installed at the lower end of the movable frame (3); a paint can (301) is arranged above the auxiliary cover (302); and a solenoid valve (306) and a humidity monitoring sensor (307) are arranged at the lower end of the auxiliary cover (302).

2. The paint coating equipment for SPC floor production according to claim 1, characterized in that: Electric cylinders (101) are installed on both sides of the device bracket (1), the upper end of the electric cylinder (101) is fixedly connected to the lower end of the upper support frame (2), and a sliding rod is provided at the lower end of the upper support frame (2), and the sliding rod extends into the interior of the device bracket (1) and is slidably connected to the device bracket (1), the upper end of the upper support frame (2) is welded to a guide frame (203), and the movable frame (3) is slidably connected to the upper support frame (2) through the guide frame (203).

3. The paint coating equipment for SPC floor production according to claim 1, characterized in that: Protective baffles (102) are provided on both sides of the interior of the device bracket (1); the protective baffles (102) are externally welded to guide rods (105); the exterior of the guide rods (105) is slidably connected to a mounting frame (103); the interior of the mounting frame (103) is rotatably connected to a transmission roller (104) via a bearing.

4. The paint coating equipment for SPC floor production according to claim 3, characterized in that: An SPC floor to be processed (6) is arranged above the transmission roller (104), and the lower end of the SPC floor to be processed (6) is rollingly connected to the surface of the transmission roller (104). A material receiving box (5) is arranged below the mounting frame (103), and the material receiving box (5) is used to collect paint flowing out of the surface of the SPC floor to be processed (6).

5. The paint coating equipment for SPC floor production according to claim 1, characterized in that: An integrally formed positioning slot (201) is provided inside the upper support frame (2), a threaded screw (202) is installed inside the positioning slot (201), both ends of the threaded screw (202) are rotatably connected to the upper support frame (2) via bearings, a reduction motor (204) is installed at one end of the upper support frame (2), and a motor shaft of the reduction motor (204) passes through the upper support frame (2) and is fixedly connected to the threaded screw (202) via a coupling.

6. The paint coating equipment for SPC floor production according to claim 5, characterized in that: The threaded lead screw (202) passes through the moving block (402) and is threadedly connected to the moving block (402); the moving block (402) is slidably connected to the upper support frame (2) via a positioning slot (201); a rotating shaft (401) is installed between the moving block (402) and the coating roller (4); the coating roller (4) is rotatably connected to the moving block (402) via the rotating shaft (401).

7. The paint coating equipment for SPC floor production according to claim 4, characterized in that: The interior of the paint can (301) is filled with high-pressure gas, the movable frame (3) is fixedly connected to the paint can (301), and a material guide pipe (303) is provided at the lower end of the paint can (301), a diverter box (304) is installed at the lower end of the material guide pipe (303), and the diverter box (304) is embedded in the interior of the auxiliary cover (302) and fixedly connected to the auxiliary cover (302).

8. The paint coating equipment for SPC floor production according to claim 7, characterized in that: A scraper plate (305) is fixedly mounted on the lower end of one side of the auxiliary cover (302), the scraper plate (305) is in contact with the surface of the coating roller (4), the solenoid valve (306) is sealed with the diversion box (304), the humidity monitoring sensor (307) is in contact with the surface of the coating roller (4), and the humidity monitoring sensor (307) and the solenoid valve (306) are electrically connected via a PLC.

9. A paint coating method for SPC floor production, implemented based on the paint coating equipment for SPC floor production according to claim 8, characterized in that: The steps include: Step 1: According to the specifications of the SPC floor (6) to be processed and coated, the number of mounting brackets (103) is adjusted so that the transmission roller (104) moves in correspondence with the position of the SPC floor (6) to be processed; Step 2: After pre-processing the SPC floor (6), place it on the upper end of the mounting frame (103) and the transmission roller (104) and enter the coating production line; Step 3: The coating paint is stored in a paint tank (301), high-pressure gas is filled into the paint tank (301), the humidity of the coating roller (4) is detected by a humidity monitoring sensor (307), and the amount of paint transferred to the coating roller (4) is accurately controlled according to the humidity switch solenoid valve (306); Step 4: The coating roller (4) is pressed against the surface of the SPC floor (6) to be processed, and its surface contacts the surface of the SPC floor (6) to be processed which passes at a uniform speed. The paint is evenly transferred to the surface of the SPC floor (6) to be processed through the coating pressure between the coating roller (4) and the SPC floor (6). During the coating process, the overflowed paint is collected by the collecting box (5); Step 5: The SPC floor (6) to be processed after coating is smoothly sent out of the coating area through the transmission roller (104).

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