A double-sided spraying device for metal color stone tiles

Abstract

The present invention discloses a double-sided spraying device for metal colored stone tiles, which relates to the technical field of spraying. The device comprises a spray box, wherein the lower portion of one side of the spray box is provided with an inlet for placing the colored stone tiles, the lower portion of one side of the spray box is provided with an outlet for removing the colored stone tiles, the spray box is provided with a box door, and a conveyor symmetrically distributed along the spray box is installed in the spray box. A material pipe for inputting paint is fixedly connected in the spray box, the material pipe opening arranged downwardly and tilted is located on the upper side of the material pipe, the material pipe opening is configured as a one-way nozzle, and a spray gun is rotatably connected to the lower side of the material pipe. The present invention cleverly cooperates with a guide frame and a spray gun, so that when the spray gun is started, the inlet of the spray gun is automatically opened, and the outlet of the spray gun automatically sprays the lower surface of the colored stone tile upward. When the spray gun is turned off, the outlet of the spray gun automatically points downward, so that residual paint remaining at the outlet of the spray gun drips downward, thereby avoiding the occurrence of "spotting" and further improving the appearance quality of the product.

Description

Technical Field

[0001] The invention relates to the technical field of spraying, in particular to a double-sided spraying device for metal colored stone tiles. Background Art

[0002] When spraying the surface of the metal colored stone tile, usually two or more spray gun systems are used to spray the paint on the front and back of the colored stone tile at the same time to ensure consistent coating thickness and strong adhesion.

[0003] In the process of double-sided spray primer of metal colored stone tiles, automatic continuous spraying is usually achieved by utilizing the gap between two conveying devices, and the spray gun is operated at an angle. Since the atomizing nozzle design of the spray gun usually includes a mechanism to prevent liquid backflow and has excellent sealing performance, it can maintain internal pressure stability in the non-working state to prevent external air and dust from entering or internal liquid leakage. Therefore, when spraying is stopped, residual paint is easily attached to the outlet end of the spray gun; and when the spray gun is started again, these irregular paint particles will be sprayed onto the next metal colored stone tile, forming "dot material". The dot material phenomenon not only affects the appearance quality of the tile plate, but also causes uneven coating thickness, thereby reducing the weather resistance and corrosion resistance of the product, and significantly affecting product quality. Summary of the Invention

[0004] In order to overcome the shortcoming that material spots are easily generated during spraying, the present invention provides a double-sided spraying device for metal colored stone tiles.

[0005] The coating spraying device of claim 1, wherein the coating spraying box has an inlet for placing the coating tiles at the lower portion of one side of the coating box and an outlet for removing the coating tiles from the coating box. The coating spraying box is provided with a box door, and a conveyor symmetrically distributed along the coating spraying box is installed in the coating spraying box. A material pipe for inputting coating is fixedly connected in the coating spraying box, and a downwardly inclined material pipe mouth is located on the upper side of the material pipe, and the material pipe mouth is provided with a one-way nozzle. A spray gun is rotatably connected to the lower side of the material pipe. When the outlet of the spray gun is tilted downward, residual coating remaining at the outlet of the spray gun drips downward. A first supporting frame is fixedly connected to the coating spraying box, and the first supporting frame is rotatably connected to the spray gun. A photoelectric sensor is fixedly connected to one side of the coating spraying box, and the photoelectric sensor is electrically connected to the spray gun through a control module. A guide frame for pushing and pulling the spray gun for forward and reverse rotation is slidably connected to one side of the coating spraying box near the inlet of the spray gun. The guide frame blocks the inlet of the spray gun, and a first spring symmetrically distributed along the guide frame is fixedly connected between the guide frame and the material pipe.

[0006] Optionally, the material pipe mouth sprays the paint onto the upper surface of the colored stone tile, and when the outlet of the spray gun is tilted upward, the paint is sprayed onto the upper surface of the colored stone tile.

[0007] Optionally, the spray gun is provided with a guide groove, and the guide frame is slidably connected to the guide groove of the spray gun.

[0008] Optionally, it also includes a spiral steel frame, which is fixed to the conveyor shaft near the outlet of the spray box. The material pipe is slidably connected to a scraper for scraping off residual paint from the material pipe mouth and the spray gun outlet. The scraper is in contact with the steel frame, and at least one second spring is fixed between the scraper and the material pipe. The steel frame rotates to push the scraper to slide toward the side of the compressed second spring.

[0009] Optionally, the scraping portion of the scraper is arranged to be distributed up and down and to be L-shaped.

[0010] Optionally, it also includes an L-shaped guide plate, which is slidably connected to the spray box, the scraper slidingly contacts the L-shaped guide plate, at least one third spring is fixed between the L-shaped guide plate and the spray box, and a card plate for blocking the entrance of the spray box is slidably connected to the side of the spray box close to the entrance, and the L-shaped guide plate is used to push the card plate to slide up and down.

[0011] Optionally, the clamping plate is provided with at least one oblique hole, and the clamping plate is slidably connected to the L-shaped guide plate through the oblique hole.

[0012] Optionally, a second support frame is also included, which is fixed to the side of the spray box near the entrance. The second support frame is rotatably connected to a conveyor belt assembly. The conveyor belt assembly is used to limit the top of the colored stone tile during the spraying process and help push the colored stone tile to move toward the side of the spray gun. A pulley assembly is connected between the conveyor belt assembly and the adjacent conveyor.

[0013] Optionally, two baffles are further included, which are fixed in the spray box. The upper baffle is used to prevent paint from splashing onto the conveyor belt assembly and the pulley assembly, and the lower baffle is used to prevent paint from splashing onto the conveyor on the right.

[0014] Optionally, the baffle is provided with a material guide trough, which is used to collect the paint on the baffle and guide the paint toward one side.

[0015] The present invention has the following advantages: through the ingenious cooperation between the guide frame and the spray gun, when the spray gun starts to start, the inlet of the spray gun is automatically opened, and the outlet of the spray gun automatically sprays the lower surface of the colored stone tile upward; when the spray gun is turned off, the outlet of the spray gun automatically points downward, so that the residual paint remaining at the outlet of the spray gun drips downward, avoiding the occurrence of the "pointing material" phenomenon and further improving the appearance quality of the product.

[0016] The present invention utilizes a unique combination design of a guide frame and a first spring, which can automatically reset after spraying is completed, effectively preventing paint mixed with external debris from flowing back into the paint supply source, thereby preventing the supply source from being contaminated.

[0017] The present invention uses a photoelectric sensor to accurately control the time points of starting and stopping spraying, and cooperates with an automated conveying device to ensure that each metal colored stone tile can obtain a uniform coating thickness, thereby improving product quality.

[0018] When the conveyor is opened, the conveyor shaft drives the steel frame to rotate and pushes the scraper to slide. When the conveyor is closed, the second spring resets and drives the scraper to slide in the opposite direction, so that the scraper scrapes off the residual paint once when the conveyor is opened and closed, preventing the residual paint that has not dripped downward from stubbornly adhering to and clogging the material pipe opening and the spray gun outlet.

[0019] The present invention ensures that the colored stone tiles can be placed only after the residual paint is scraped off once after the conveyor is turned on through the guiding cooperation of the clamping plate and the L-shaped guide plate, so as to avoid premature placement, which leads to premature conveying of the colored stone tiles and causes the material pipe and the spray gun to start spraying before scraping when the conveyor is turned on. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the conveyor, material pipe, spray gun and other components of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the conveyor, material pipe, spray gun and first support frame of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the material tube, guide frame, first spring and other components of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the spray gun, the guide frame and the first spring separated from each other according to the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the steel frame, scraper frame, second spring and other components of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the L-shaped guide plate, the third spring, the clamping plate and other components of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the scraper, L-shaped guide plate, third spring and clamping plate of the present invention.

[0028] Figure 9 It is a three-dimensional structural schematic diagram of components such as the conveyor belt assembly and the pulley assembly of the present invention.

[0029] Figure 10 It is a schematic diagram of the three-dimensional structure of the conveyor belt assembly, baffle and other components of the present invention.

[0030] The meaning of the reference numbers in the figure: 1: spray box, 101: colored stone tile, 2: box door, 3: conveyor, 4: material pipe, 5: spray gun, 6: first support frame, 7: photoelectric sensor, 8: guide frame, 9: first spring, 10: steel frame, 11: scraper frame, 12: second spring, 13: L-shaped guide plate, 14: third spring, 15: clamping plate, 16: second support frame, 17: conveyor belt assembly, 18: pulley assembly, 19: baffle, 191: material guide trough. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear herein are based solely on the accompanying drawings and are not intended to limit the present invention.

[0032] Example 1: A double-sided spraying device for metal colored stone tiles, such as Figure 1-Figure 5 As shown, it includes a spray box 1, an entrance for placing colored stone tiles 101 is opened at the lower right side of the spray box 1, an outlet for removing colored stone tiles 101 is opened at the lower left side of the spray box 1, a box door 2 is installed on the front side of the spray box 1, and a conveyor 3 symmetrically distributed along the left and right sides of the spray box 1 is installed in the spray box 1. A material pipe 4 for inputting paint is fixedly connected to the spray box 1, and the material pipe 4 opening inclined toward the lower right is located on the upper side of the material pipe 4. The material pipe 4 opening sprays the paint onto the upper surface of the colored stone tile 101. The material pipe 4 opening is set as a one-way nozzle, and the rear end of the material pipe 4 extends into the paint supply source. The front lower side of the material pipe 4 is rotatably connected to a spray gun 5. When the outlet of the spray gun 5 is tilted toward the upper right, the paint is sprayed onto the upper surface of the colored stone tile 101, and the outlet of the spray gun 5 faces the lower right. When tilted, the residual paint remaining at the outlet of the spray gun 5 drips downward, and a first support frame 6 is fixedly connected to the lower front part of the spray box 1, and the first support frame 6 is rotatably connected to the front end of the spray gun 5. A photoelectric sensor 7 is fixedly connected to the middle right side of the spray box 1, and the photoelectric sensor 7 is used to detect the position of the colored stone tile 101. The photoelectric sensor 7 is electrically connected to the pump element of the spray gun 5 through the control module. A guide frame 8 is slidably connected to the side of the material pipe 4 near the inlet of the spray gun 5 along the front and rear directions. A guide groove is opened on the rear side of the spray gun 5, and the guide frame 8 is slidably connected to the guide groove of the spray gun 5. The guide frame 8 slides back and forth to push and pull the spray gun 5 forward and reverse. The guide frame 8 blocks the inlet of the spray gun 5, and a first spring 9 symmetrically distributed along the guide frame 8 is fixed between the guide frame 8 and the material pipe 4.

[0033] When using this device for spraying, push the colored stone tile 101 to the left from the entrance at the lower right side of the spray box 1 and place it on the conveyor 3 on the right, and start the conveyor 3, so that the colored stone tile 101 is conveyed to the left. When the photoelectric sensor 7 detects that the left end of the colored stone tile 101 begins to separate from the conveyor 3 on the right, the photoelectric sensor 7 sends an electrical signal, the control module receives the electrical signal, and controls the spray gun 5 to start. The pump element of the spray gun 5 draws the paint into the material pipe 4, and a part of the paint entering the material pipe 4 is sprayed downward to the upper surface of the colored stone tile 101 through the material pipe 4 mouth, and the other part of the paint entering the material pipe 4 squeezes the guide frame 8 to slide to the side of the compressed first spring 9, so that the guide frame 8 no longer blocks the entrance of the spray gun 5. At the same time, the guide frame 8 acts on the guide groove, causing the spray gun 5 to rotate a certain angle until the outlet is facing upward. In this way, the other part of the paint in the material pipe 4 passes through the entrance of the spray gun 5. The paint enters the spray gun 5 through the outlet and is then sprayed onto the lower surface of the colored stone tile 101 through the outlet of the spray gun 5. When the photoelectric sensor 7 detects that the right end of the colored stone tile 101 begins to separate from the conveyor 3 on the right, the photoelectric sensor 7 sends an electrical signal, the control module receives the electrical signal, and controls the pump element of the spray gun 5 to shut down. At this time, the guide frame 8 is no longer squeezed by the paint, and the first spring 9 resets to drive the guide frame 8 to slide back and reset, so that the guide frame 8 blocks the entrance of the spray gun 5 again, preventing the paint mixed with external impurities from flowing back into the paint supply source to prevent contamination of the supply source. At the same time, the guide frame 8 acts on the guide groove to cause the spray gun 5 to rotate in the opposite direction until the outlet is facing downward. In this way, the residual paint remaining at the outlet of the spray gun 5 drips downward to prevent the residual paint from remaining at the outlet of the spray gun 5 and being sprayed onto the next metal colored stone tile 101 to form a "point material". When spraying stops, the conveyor 3 is closed.

[0034] Example 2: Based on Example 1, Figure 6 and Figure 7 As shown, it also includes a steel frame 10, which is fixed to the conveyor 3 shaft on the left side. The steel frame 10 is arranged in a spiral shape, and the material pipe 4 is slidably connected to a scraper 11. The scraper 11 contacts the steel frame 10. The scraping part of the scraper 11 is arranged to be distributed up and down, and is arranged in an L shape. The scraping parts on the upper and lower sides of the scraper 11 are respectively used to scrape off the residual paint at the outlet of the material pipe 4 and the outlet of the spray gun 5. Two upper and lower second springs 12 are fixed between the scraper 11 and the material pipe 4. The steel frame 10 rotates to push the scraper 11 to slide toward the side where the second spring 12 is compressed.

[0035] When the conveyor 3 is opened, the conveyor 3 shaft drives the steel frame 10 to rotate, thereby pushing the scraper 11 to slide toward the side of the compressed second spring 12, so that the L-shaped scraping parts on the upper and lower sides of the scraper 11 respectively scrape off the residual paint at the material pipe 4 and the spray gun 5 outlet. When the conveyor 3 is closed, the second spring 12 resets and drives the scraper 11 to slide in the opposite direction to reset, thereby scraping off the residual paint at the material pipe 4 and the spray gun 5 outlet again. During the reset process, the scraper 11 drives the steel frame 10 to reverse, and the steel frame 10 drives the conveyor 3 shaft thereon to rotate. In this way, the scraper 11 scrapes off the residual paint once each when the conveyor 3 is opened and closed, to prevent the residual paint that has not dripped downwards from stubbornly adhering to and clogging the material pipe 4 and the spray gun 5 outlet.

[0036] like Figure 7 and Figure 8 As shown, it also includes an L-shaped guide plate 13, which is slidably connected to the spray box 1 in the front and rear directions, and the scraper 11 slides backward to contact the L-shaped guide plate 13. Two left and right third springs 14 are fixed between the L-shaped guide plate 13 and the spray box 1. The right side of the spray box 1 is slidably connected to a card plate 15, which is used to block the entrance of the spray box 1. The card plate 15 has two front and rear inclined holes. The card plate 15 is slidably connected to the right side of the L-shaped guide plate 13 through the inclined holes. The L-shaped guide plate 13 slides back and forth to push the card plate 15 to slide up and down.

[0037] Initially, the card plate 15 blocks the entrance at the lower right side of the spray box 1, making it impossible to place the colored stone tile 101 on the conveyor 3 on the right side. When the conveyor 3 is opened, the L-shaped scraping parts on the upper and lower sides of the scraper 11 respectively scrape off the residual paint from the material pipe 4 and the spray gun 5 outlet. The scraper 11 first slides into contact with the L-shaped guide plate 13, and then pushes the L-shaped guide plate 13 to slide toward the side of the compressed third spring 14. The L-shaped guide plate 13 acts on the inclined hole of the card plate 15, causing the card plate 15 to move upward until it no longer blocks the spray gun. The entrance at the lower right side of the paint box 1 can be used to place the colored stone tile 101. In this way, it is ensured that the residual paint is scraped off once after the conveyor 3 is opened before the colored stone tile 101 can be placed, so as to avoid premature placement, which will cause the colored stone tile 101 to be conveyed prematurely, thereby causing the material pipe 4 and the spray gun 5 to start spraying before scraping when the conveyor 3 is opened. When the conveyor 3 is closed, the third spring 14 is reset to drive the scraper 11 to slide in the opposite direction and reset, so that the clamping plate 15 moves downward to block the entrance at the lower right side of the spray box 1 again.

[0038] Example 3: Based on Example 2, Figure 9As shown, it also includes a second support frame 16, the second support frame 16 is fixedly connected to the right side of the spray box 1, and the second support frame 16 is rotatably connected to a conveyor belt assembly 17. The conveyor belt assembly 17 is used to limit the top of the colored stone tile 101 during the spraying process and help the colored stone tile 101 move toward the side of the spray gun 5. A pulley assembly 18 is connected between the conveyor belt assembly 17 and the conveyor 3 on the right side. The conveyor 3 on the right side drives the conveyor belt assembly 17 through the pulley assembly 18, thereby helping the colored stone tile 101 to be transmitted to the left.

[0039] like Figure 10 As shown, it also includes two upper and lower baffles 19, the baffle 19 is fixedly connected to the spray box 1, the upper baffle 19 is used to prevent the paint from splashing onto the conveyor belt assembly 17 and the pulley assembly 18, and the lower baffle 19 is used to prevent the paint from splashing onto the conveyor 3 on the right side. The baffle 19 has a guide groove 191, which is used to collect the paint on the baffle 19 and guide the paint to one side.

[0040] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications may be made to the present invention without departing from the principles and spirit of the invention as defined in the claims. Therefore, the detailed description of the disclosed embodiments is intended to be illustrative only and not to limit the present invention, which is to be defined by the claims.

Claims

1. A double-sided spraying device for metal colored stone tiles, comprising a spray box (1), an inlet for placing colored stone tiles (101) is opened at the lower portion of one side of the spray box (1), an outlet for removing colored stone tiles (101) is opened at the lower portion of one side of the spray box (1), the spray box (1) is equipped with a box door (2), and conveyors (3) symmetrically distributed along the spray box (1) are installed in the spray box (1), wherein: A material pipe for inputting paint is fixedly connected in the spray box (1), and a material pipe opening tilted downward is located on the upper material pipe. The material pipe opening is set as a one-way nozzle. The lower material pipe is rotatably connected to a spray gun (5). When the outlet of the spray gun (5) tilts downward, the residual paint remaining at the outlet of the spray gun (5) drips downward. The spray box (1) is fixedly connected to a first support frame (6). The first support frame (6) is rotatably connected to the spray gun (5). A photoelectric sensor (7) is fixedly connected to one side of the spray box (1). The photoelectric sensor (7) is electrically connected to the spray gun (5) through a control module. A guide frame (8) for pushing and pulling the spray gun (5) for forward and reverse rotation is slidably connected to the side of the material pipe near the inlet of the spray gun (5). The guide frame (8) blocks the inlet of the spray gun (5). A first spring (9) symmetrically distributed along the guide frame (8) is fixedly connected between the guide frame (8) and the material pipe. It also includes a spiral steel frame (10), the steel frame (10) is fixed to the conveyor (3) shaft near the outlet of the spray box (1), the material pipe is slidably connected to a scraper (11) for scraping off residual paint at the material pipe mouth and the outlet of the spray gun (5), the scraper (11) is in contact with the steel frame (10), and at least one second spring (12) is fixed between the scraper (11) and the material pipe, and the steel frame (10) rotates to push the scraper (11) to slide toward the side of the compressed second spring (12); The invention also includes an L-shaped guide plate (13), the L-shaped guide plate (13) is slidably connected to the inside of the spray box (1), the scraper (11) slidably contacts the L-shaped guide plate (13), at least one third spring (14) is fixedly connected between the L-shaped guide plate (13) and the spray box (1), and a card plate (15) for blocking the entrance of the spray box (1) is slidably connected to the side of the spray box (1) close to the entrance, and the L-shaped guide plate (13) is used to push the card plate (15) to slide up and down.

2. A double-sided spraying device for metal colored stone tiles according to claim 1, characterized in that: The nozzle sprays the paint onto the upper surface of the colored stone tile (101), and when the outlet of the spray gun (5) is tilted upward, the paint is sprayed onto the lower surface of the colored stone tile (101).

3. A double-sided spraying device for metal colored stone tiles according to claim 2, characterized in that: The spray gun (5) is provided with a guide groove, and the guide frame (8) is slidably connected to the guide groove of the spray gun (5).

4. A double-sided spraying device for metal colored stone tiles according to claim 3, characterized in that: The scraping portion of the scraper (11) is arranged to be distributed up and down and to be L-shaped.

5. A double-sided spraying device for metal colored stone tiles according to claim 4, characterized in that: The clamping plate (15) is provided with at least one oblique hole, and the clamping plate (15) is slidably connected to the L-shaped guide plate (13) through the oblique hole.

6. A double-sided spraying device for metal colored stone tiles according to claim 5, characterized in that: The invention also includes a second support frame (16), which is fixed to a side of the spray box (1) near the entrance. A conveyor belt assembly (17) is rotatably connected to the second support frame (16). The conveyor belt assembly (17) is used to limit the top of the colored stone tile (101) during the spraying process and to help the colored stone tile (101) move toward the side of the spray gun (5). A pulley assembly (18) is connected between the conveyor belt assembly (17) and the adjacent conveyor (3).

7. A double-sided spraying device for metal colored stone tiles according to claim 6, characterized in that: The apparatus further comprises two baffles (19), which are fixedly connected to the spray box (1). The upper baffle (19) is used to prevent paint from splashing onto the conveyor belt assembly (17) and the pulley assembly (18), and the lower baffle (19) is used to prevent paint from splashing onto the conveyor (3) on the right side.

8. A double-sided spraying device for metal colored stone tiles according to claim 7, characterized in that: The baffle (19) is provided with a guide trough (191), which is used to collect the paint on the baffle (19) and guide the paint toward one side.

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