Coating device for stone carving surface protective coating

Abstract

The utility model relates to the technical field of stone sculpture processing, in particular to a coating device for a stone sculpture surface protective coating, which comprises a spraying room and a plate trailer slidably arranged on a guide rail, an upper winding roller and a lower winding roller are rotatably arranged above and below an opening in the front end face of the spraying room respectively, a piece of rolling cloth is wound between the upper winding roller and the lower winding roller, and the rolling cloth is provided with a rectangular opening and a guide plate. A transverse plate with an operation round hole and an observation window is transversely arranged on the guide plate in a sliding mode, during operation, a worker observes from the outside through the observation window, and the two arms penetrate through the round hole to enter a spraying room to operate a spraying gun. According to the device, an arm can freely move up and down through winding and unwinding of the rolled cloth, left-right movement is achieved through sliding of the transverse plate, the operation space is greatly expanded, the spraying requirement of medium and large stone sculptures is easily met, operation fatigue is relieved through cooperation with a balancing weight, multiple sealing is achieved through combination with a guide piece, a pressing rod and an oversleeve, harmful gas is thoroughly isolated, and human health is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of stone carving processing technology, and in particular to a coating device for a protective coating on the surface of stone carvings. Background Technology

[0002] After stone carvings are completed, they typically require a protective coating, such as varnish or a protective agent, to enhance their surface gloss and extend their lifespan. Currently, existing technologies for coating medium to large-sized stone carvings face the following two main challenges:

[0003] Firstly, traditional spraying methods usually involve operators wearing protective gear and directly entering the spray booth to perform hand-held spraying. Although this method is flexible and has a large space, paint and coatings will release a large amount of toxic and harmful gases and paint mist particles during the spraying process. Even if protective clothing is worn, being in an environment with high concentrations of harmful gases for a long time will still cause serious damage to the health of the operators.

[0004] Secondly, to isolate the human body from the toxic spraying environment, some existing technologies have developed enclosed external spray booths, similar to control boxes with fixed glove holes. However, the front of these traditional spray booths is often a fixed rigid panel with only two fixed operating holes for the arm to extend into. Because the holes are fixed, the operator's arm movement is severely restricted, typically only covering a very small area circled by the arm's length. For medium to large-sized stone sculptures, due to their large horizontal and vertical spans, the fixed holes simply cannot meet the needs of large-area, wide-range, and horizontal spraying movements, resulting in extremely limited operating space and significant limitations.

[0005] Therefore, there is a lack of existing technologies for a stone carving coating device that can completely isolate operators from the toxic spraying environment and break through the limitations of fixed operating holes to achieve large-scale, free spraying. Utility Model Content

[0006] Therefore, in view of the above problems, this utility model proposes a coating device for protective coating on stone carving surface, which solves the above-mentioned background technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A coating device for a protective coating on the surface of stone carvings includes a spray booth, an entrance on the left side of the spray booth, a door panel for closing the entrance of the spray booth, a guide rail on the left side of the spray booth, a trolley slidably disposed on the top surface of the guide rail, an opening on the front face of the spray booth, an upper roller rotatably disposed on the spray booth and above the opening, a lower roller rotatably disposed on the spray booth and below the opening, a roll of cloth wound between the upper and lower rollers, guide plates disposed on the front face of the spray booth and on both sides of the roll of cloth, a rectangular opening at the bottom of the roll of cloth, a guide plate disposed on the roll of cloth at the rectangular opening, a plate opening disposed on the guide plate and connected to the rectangular opening, a horizontal plate slidably disposed on the guide plate, a circular hole disposed on the horizontal plate for a human arm to pass through, an observation window disposed in the middle of the horizontal plate, and a spray gun disposed inside the spray booth and near the circular hole.

[0009] Furthermore, the horizontal plate is provided with a sleeve at the position of the circular hole, and the cuff of the sleeve away from the horizontal plate is provided with a tightening strap for tightening the cuff.

[0010] Furthermore, the upper winding roller is provided with an upper synchronous pulley on one side of its lateral direction, the lower winding roller is provided with a lower synchronous pulley on one side of its lateral direction, a transmission belt is provided between the upper synchronous pulley and the lower synchronous pulley, and a counterweight is detachably connected to the top of the transmission belt.

[0011] Furthermore, the spray booth is provided with a pressure bar near the upper and lower rollers, and angle irons connected to the spray booth are provided on the left and right sides of the pressure bar.

[0012] Furthermore, the cart includes a support plate, movable wheels located at the four corners of the support plate, a placement plate located on the top surface of the movable wheels, horizontal blocks placed at intervals on the top surface of the placement plate, and stones located at the rear end of the horizontal blocks, wherein the stones are provided with multiple annular grooves arranged at intervals.

[0013] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0014] 1. This coating device for protective coating of stone carvings, by setting up a cloth roll with upper and lower rollers, combined with a guide plate and a horizontally sliding plate, allows the operator's arm to be extended into the spray booth from the outside to carry out spraying operations. The operator does not need to enter the spray booth, fundamentally avoiding the damage to the human body caused by long-term inhalation of toxic gases and paint particles. At the same time, the cloth roll is raised and lowered when moving up and down, and the horizontal plate slides on the guide plate when moving left and right, so that the movement of the human arm is unrestricted and the space is extremely large. It is not only flexible and free to operate, but also can easily meet the spraying needs of medium and large stone carvings, overcoming the shortcomings of the limited operating space of traditional spray booths.

[0015] 2. Since spraying large stone sculptures requires frequent adjustments to the spray gun height, the weight of the guide plate and horizontal plate can easily cause operator arm fatigue. This device uses a transmission belt between the upper and lower synchronous pulleys and a counterweight to counteract the weight of the guide plate and horizontal plate when they move upward by using the pulling force generated by the downward movement of the counterweight. This makes it easier and less strenuous for operators to raise their arms during long-term or high-level spraying operations, greatly improving work comfort and spraying stability.

[0016] 3. By setting guide plates on both sides of the roll and pressure bars at the top and bottom ends of the roll, the upper, lower, left and right edges of the roll are forced to slide tightly against the front face of the spray booth, preventing toxic gases from leaking out from all sides due to the winding gap. A sleeve with an elastic tightening strap is added to the round hole of the horizontal plate, so that the sleeve can automatically tighten and fit the operator's arm, completely sealing the gap between the arm and the round hole, and achieving all-round sealing protection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model from the left.

[0018] Figure 2 This is a front view schematic diagram of the structure of this utility model.

[0019] Figure 3 This is a front view schematic diagram of the spray booth structure of this utility model.

[0020] Figure 4 This is a front view schematic diagram of the roll fabric in use according to this utility model.

[0021] Figure 5 This is a schematic diagram of the flatbed cart structure of this utility model.

[0022] Numbering on the map:

[0023] 1. Spray booth; 101. Opening;

[0024] 2. Entrance; 3. Door panel; 4. Guide rail; 5. Cart;

[0025] 6. Upper winding roller; 7. Lower winding roller; 8. Fabric winding; 9. Guide plate; 10. Rectangular opening; 11. Guide plate; 12. Plate opening; 13. Horizontal plate; 14. Round hole; 15. Observation window; 16. Spray gun; 17. Sleeve sleeve; 18. Tightening belt; 19. Upper synchronous pulley; 20. Lower synchronous pulley; 21. Drive belt; 22. Counterweight; 23. Pressure bar; 24. Angle iron;

[0026] 501. Support plate; 502. Moving wheel; 503. Placement plate; 504. Horizontal block; 505. Stone; 506. Annular groove; 507. Protruding ring. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0028] refer to Figures 1 to 5 This embodiment provides a coating device for a protective coating on the surface of stone carvings, including a spray booth 1, an entrance 2 located on the left side of the spray booth 1, a door panel 3 for closing the entrance 2 of the spray booth 1, a guide rail 4 located on the left side of the spray booth 1, a trolley 5 slidably located on the top surface of the guide rail 4, an opening 101 located on the front face of the spray booth 1, an upper roller 6 rotatably located on the spray booth 1 and above the opening 101, a lower roller 7 rotatably located on the spray booth 1 and below the opening 101, a roll of cloth 8 wound between the upper roller 6 and the lower roller 7, and a roll of cloth 8 located on the front face of the spray booth 1 and above the roll of cloth 8. The system includes guide plates 9 on both sides, a rectangular opening 10 at the bottom of the roll 8, a guide plate 11 on the roll 8 located at the rectangular opening 10, a plate opening 12 on the guide plate 11 and connected to the rectangular opening 10, a horizontal plate 13 that slides laterally on the guide plate 11, a round hole 14 on the horizontal plate 13 for a human arm to pass through, an observation window 15 in the middle of the horizontal plate 13, and a spray gun 16 located inside the spray booth 1 and near the round hole 14. The guide rail 4 extends from the spray booth 1 to the outside flat ground. The observation window 15 is transparent glass, allowing observation of the interior of the spray booth 1.

[0029] The spray gun 16 is connected to an external storage tank (not shown in the figure). After completion, the stone carving to be sprayed is placed on the trolley 5. Then, the door panel 3 of the spray booth 1 is opened, and the trolley 5 with the stone carving is pushed into the spray booth 1 and positioned behind the horizontal plate 13. Then, the door panel 3 is closed. The left and right arms of the human body are passed through the round holes 14 at the position of the horizontal plate 13, respectively. The human arms will pass through the plate opening 12 of the guide plate 11 and the rectangular opening 10 of the roll cloth 8, and can contact the spray gun 16 inside the spray booth 1. The right hand is used to grasp the spray gun 16. During the spraying of medium and large stone carvings, the angle and position of the spray gun 16 can be adjusted at any time through the observation window 15.

[0030] When lateral movement is required, the arm can be moved directly to the left because the horizontal plate 13 is slidably connected to the guide plate 11. Guided by the guide plate 11, the arm holding the spray gun 16 can be moved to the left, thereby adjusting the lateral distance of the spray gun 16. When upward movement is required, the arm can be moved directly upward. The roll of cloth 8 with a spare part will be rolled up by the upper roll roller 6. When moving downward, the upper roll roller 6 unrolls and the lower roll roller 7 rolls up. The roll of cloth 8, the guide plate 11 and the horizontal plate 13 will not restrict the movement of the human arm, and the position of the spray gun 16 can be freely adjusted. The roll of cloth 8 always covers the opening 101 of the spray booth 1, which can avoid damage to the body caused by long-term exposure to the spray booth 1. Compared with the existing spray booth, the human arm has more space to move, and a larger area of ​​stone carving can be sprayed.

[0031] The guide plate 9 is fixedly connected to the spray booth 1 on the side away from the roll cloth 8. The guide plate 9 is spaced apart from the spray booth 1 on the side closer to the roll cloth 8. The roll cloth 8 slides up and down between the spray booth 1 and the guide plate 9. The guide plate 9 can make the roll cloth 8 stick tightly to the wall of the spray booth 1, preventing the gap between the left and right sides of the roll cloth 8 and the spray booth 1 from being too large, so that toxic gases can leak out from between the roll cloth 8 and the spray booth 1.

[0032] The horizontal plate 13 is provided with a sleeve 17 at the position of the round hole 14. The cuff of the sleeve 17 away from the horizontal plate 13 is provided with a tightening strap 18 for tightening the cuff. The tightening strap 18 is an elastic band used to fit one side to fit the human arm. When in use, the human arm passes through the sleeve 17, and the tightening strap 18 at the cuff of the sleeve 17 will tighten and fit the human arm, so as to prevent the arm from not fitting completely with the round hole 14 on the horizontal plate 13, which would cause air to leak out from the gap between the round hole 14 and the arm.

[0033] The upper winding roller 6 has an upper synchronous pulley 19 on one side of its lateral direction, and the lower winding roller 7 has a lower synchronous pulley 20 on one side of its lateral direction. A transmission belt 21 is provided between the upper synchronous pulley 19 and the lower synchronous pulley 20. A counterweight block 22 is detachably connected to the top of the transmission belt 21. A spiral spring (not shown) for automatically winding the upper winding roller 6 can be provided inside the upper winding roller 6. The principle and structure of the spiral spring are existing conventional technologies and will not be described in detail here.

[0034] Since the guide plate 11 and the horizontal plate 13 have a certain weight, if the stone carving is large, it is necessary to hold the guide plate 11 and the horizontal plate 13 at a high position for a long time to spray paint with the spray gun 16. This results in the need to support the weight of the guide plate 11 and the horizontal plate 13 for a long time. By setting the counterweight 22, when the spray gun 16 is moved up, it will drive the cloth roll 8 to move up. After the cloth roll 8 moves up, it will drive the guide plate 11 and the horizontal plate 13 to move up. Then, the upper roller 6 will roll up the cloth roll 8. The upper synchronous wheel 19 on one side of the upper roller 6 will rotate synchronously. The counterweight 22 on the transmission belt 21 between the upper synchronous wheel 19 and the lower synchronous wheel 20 will move down to counterweight, so as to avoid the problem of arm strain caused by the need to support the weight of the guide plate 11 and the horizontal plate 13 for a long time during painting.

[0035] The spray booth 1 is provided with a pressure rod 23 near the upper roller 6 and the lower roller 7. Angle irons 24 connected to the spray booth 1 are provided on the left and right sides of the pressure rod 23.

[0036] The pressure bar 23 is closer to the spray booth 1, and the roll of cloth 8 slides between the pressure bar 23 and the spray booth 1. Since the upper roller 6 and the lower roller 7 have a certain distance from the wall of the spray booth 1 in order to roll up the roll of cloth 8, by installing the pressure bar 23, the upper and lower ends of the roll of cloth 8 can be close to the spray booth 1, preventing the gap between the upper and lower sides of the roll of cloth 8 and the spray booth 1 from being too large, and preventing toxic gases from leaking out from between the roll of cloth 8 and the spray booth 1.

[0037] The cart 5 includes a support plate 501, movable wheels 502 located at the four corners of the support plate 501, a placement plate 503 located on the top surface of the movable wheels 502, horizontal blocks 504 located on the top surface of the placement plate 503 and placed at intervals, and stones 505 located at the rear end of the horizontal blocks 504. The stones 505 are provided with a plurality of annular grooves 506 arranged at intervals.

[0038] The adjacent surfaces of the movable wheel 502 have protruding rings 507 that are locked in the inner wall between the guide rails 4. When the cart 5 moves, the protruding rings 507 on the movable wheel 502 can prevent the cart 5 from shifting position. When the stone carving is painted, the bottom surface of the stone carving can contact the horizontal block 504, and the top surface of the stone carving can contact the annular groove 506 on the stone block 505 to form a stable triangular structure. Then the cart 5 is pushed into the spray booth 1. The cart 5 can hold stone carvings of different sizes and shapes, has wide adaptability, and does not require the use of clamps.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A coating device for applying a protective coating to the surface of stone carvings, characterized in that, Includes a spray booth (1), an entrance (2) located on the left side of the spray booth (1), a door panel (3) for closing the entrance (2) of the spray booth (1), a guide rail (4) located on the left side of the spray booth (1), a trolley (5) slidably located on the top surface of the guide rail (4), an opening (101) located on the front face of the spray booth (1), an upper roller (6) rotatably located on the spray booth (1) and above the opening (101), a lower roller (7) rotatably located on the spray booth (1) and below the opening (101), and a roll of cloth (8) wound between the upper roller (6) and the lower roller (7). The spray booth (1) has a guide plate (9) on the front end and on both sides of the roll of cloth (8), a rectangular opening (10) at the bottom of the roll of cloth (8), a guide plate (11) on the roll of cloth (8) at the rectangular opening (10), a plate opening (12) on the guide plate (11) and connected to the rectangular opening (10), a horizontal plate (13) on the guide plate (11) that slides laterally, a round hole (14) on the horizontal plate (13) for a human arm to pass through, an observation window (15) in the middle of the horizontal plate (13), and a spray gun (16) inside the spray booth (1) and near the round hole (14).

2. The coating device for a protective coating on the surface of stone carvings according to claim 1, characterized in that: The horizontal plate (13) is provided with a sleeve (17) at the position of the round hole (14), and the cuff of the sleeve (17) away from the horizontal plate (13) is provided with a tightening strap (18) for tightening the cuff.

3. The coating device for a protective coating on the surface of stone carvings according to claim 2, characterized in that: The upper roller (6) has an upper synchronous pulley (19) on one side of its lateral direction, and the lower roller (7) has a lower synchronous pulley (20) on one side of its lateral direction. A transmission belt (21) is provided between the upper synchronous pulley (19) and the lower synchronous pulley (20), and a counterweight (22) is detachably connected to the top of the transmission belt (21).

4. The coating device for a protective coating on the surface of stone carvings according to claim 3, characterized in that: The spray booth (1) is provided with a pressure bar (23) near the upper roller (6) and lower roller (7), and angle irons (24) connected to the spray booth (1) are provided on the left and right sides of the pressure bar (23).

5. A coating device for a protective coating on a stone carving surface according to claim 4, characterized in that: The cart (5) includes a support plate (501), movable wheels (502) located at the four corners of the support plate (501), a placement plate (503) located on the top surface of the movable wheels (502), horizontal blocks (504) located on the top surface of the placement plate (503) and spaced apart, and a stone block (505) located at the rear end of the horizontal block (504). The stone block (505) is provided with a plurality of spaced annular grooves (506).

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