Painting canvas coating thickness adjusting device

Abstract

The utility model discloses a canvas coating thickness adjusting device, and relates to the technical field of canvas processing. The canvas coating thickness adjusting device comprises a base, and the upper end of the base is fixedly connected with a fixed frame; the coating scraping assembly comprises two first connecting shafts, the surfaces of the two first connecting shafts are rotationally connected with second connecting frames, the inner sides of the two second connecting frames are fixedly connected with four scraping plates, the surface of the first connecting shaft on the front side is sleeved with a first torsional spring, and the surface of the first connecting shaft on the front side is fixedly connected with a ratchet wheel; a second connecting shaft is rotationally connected to the front side of the fixed frame, a pawl is fixedly connected to the surface of the second connecting shaft, a second torsional spring sleeves the surface of the second connecting shaft, and through clamping of the pawl and a ratchet wheel and arrangement of a scraper and a first torsional spring, the thickness of a surface coating of the canvas is conveniently adjusted, and the practicability and convenience of the device are improved; the pigment is prevented from falling off or cracking, and the service life of the works is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of canvas processing technology, and in particular to a canvas coating thickness adjustment device. Background Technology

[0002] Oil painting canvas is a type of fabric specifically designed for oil painting, with a coating on a particular cloth substrate that prevents the penetration of oil, solvents, and water. This type of fabric is not only suitable for painting but is also commonly used for inkjet printing, photography, indoor and outdoor advertising, and light boxes. Oil painting canvases come in various materials, primarily including linen, pure cotton, synthetic fiber (polyester) fabric, and cotton-linen blends. Linen and cotton canvases are particularly popular in the field of hand-painted art.

[0003] A canvas coating device is a specialized device for applying a special coating to a canvas substrate. If painting is done directly on an untreated canvas, the pigment may seep into the canvas fibers, causing the colors to become muddy or the pigment to flow on the canvas surface, affecting the clarity and stability of the painting. Chinese utility model patent, authorization announcement number "CN218401660U", discloses a coating device comprising: a base plate; a pressing mechanism on the top of the base plate; a rotating mechanism on the top of the base plate, the rotating mechanism engaging with the pressing mechanism; the rotating mechanism driving the pressing mechanism to compress a waterproof membrane; a winding assembly connected to one side of the top of the base plate for winding the waterproof membrane; an unwinding assembly on the other side of the top of the base plate; a coating box connected to the top of the base plate; and a drying mechanism connected to the top of the base plate.

[0004] The above-mentioned technical solution uses two sliders to drive two pressure rollers to descend through two L-shaped plates, pressing the waterproof membrane into the coating box to complete the coating of both sides of the waterproof membrane. This allows the device to not only coat both sides of the waterproof membrane simultaneously, but also to press the waterproof membrane tightly during winding, thereby improving the working efficiency of the coating device. However, the above-mentioned technical solution still has certain defects. When coating both sides of the waterproof membrane, the immersion degree of the waterproof membrane, immersion time, viscosity of the coating, and distribution of the coating inside the coating tank all directly affect the final coating thickness, and thus affect the quality and service life of the waterproof membrane. Therefore, this utility model proposes a new solution. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a canvas coating thickness adjustment device that can solve the problem that when coating both sides of a waterproof membrane, the two pressure rollers descend and press the waterproof membrane into the coating box. Factors such as the degree of immersion of the waterproof membrane, the immersion time, the viscosity of the coating, and the distribution of the coating inside the coating tank will directly affect the final coating thickness, and thus affect the quality and service life of the waterproof membrane.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oil canvas coating thickness adjustment device, including a base, with a fixed frame fixedly connected to the upper end of the base;

[0007] A coating scraping assembly is disposed inside a fixed frame. The coating scraping assembly includes two first connecting shafts, both of which are rotatably connected inside the fixed frame. A second connecting frame is rotatably connected to the surface of each of the two first connecting shafts. Four scrapers are fixedly connected to the inner side of the two second connecting frames. A first torsion spring is sleeved on the surface of the front first connecting shaft. The two ends of the first torsion spring are fixedly connected to the surfaces of the first connecting shaft and the second connecting frame, respectively. A ratchet is fixedly connected to the surface of the front first connecting shaft.

[0008] A second connecting shaft is rotatably connected to the front side of the fixed frame. A pawl is fixedly connected to the surface of the second connecting shaft. The pawl engages with a ratchet. A second torsion spring is sleeved on the surface of the second connecting shaft. The two ends of the second torsion spring are fixedly connected to the fixed frame and the pawl, respectively.

[0009] Preferably, all four scrapers are arc-shaped.

[0010] Preferably, a connecting block is fixedly connected to the surface of the first connecting shaft on the front side, a hydraulic rod is fixedly connected to the inside of the fixed frame, a first connecting frame is fixedly connected to the output end of the hydraulic rod, and two canvas pressure rollers are rotatably connected to the inner side of the first connecting frame.

[0011] Preferably, a first bracket is fixedly connected to the upper end of the base, and a first canvas guide roller is provided at the upper end of the base;

[0012] There are four first supports and two first canvas guide rollers, with each first canvas guide roller rotatably connected to its corresponding first support.

[0013] Preferably, an oil immersion tank is fixedly connected to the upper end of the base, and two second canvas guide rollers and a third canvas guide roller are rotatably connected to the upper end of the oil immersion tank.

[0014] Preferably, a second connecting bracket is fixedly connected to the upper end of the oil immersion tank, a first drive motor is fixedly connected to the surface of the front second connecting bracket, a fourth guide roller is fixedly connected to the output end of the first drive motor, and the fourth guide roller is rotatably connected to the two second connecting brackets.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. The canvas coating thickness adjustment device, through the engagement of the pawl and the ratchet, facilitates the limiting of the first connecting shaft, and the setting of the scraper and the first torsion spring facilitates the adjustment of the torsion angle of the first torsion spring according to the tension of the canvas, and the adjustment of the pressure when the scraper contacts the canvas surface, thus facilitating the adjustment of the coating thickness on the canvas surface, improving the practicality and convenience of the device. An appropriate coating thickness can increase the stability and durability of the painting, provide better adhesion and support, prevent paint from falling off or cracking, and extend the life of the artwork. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the canvas coating thickness adjustment device of this utility model.

[0018] Figure 2 This is a schematic diagram of the oil immersion tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the canvas pressure roller of this utility model;

[0020] Figure 4 This is a schematic diagram of the scraper of this utility model;

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

[0022] Reference numerals: 1. Base; 2. Immersion tank; 3. Fixed frame; 4. First support; 5. First canvas guide roller; 6. Second canvas guide roller; 7. Second connecting support; 8. First drive motor; 9. Fourth guide roller; 10. Third canvas guide roller; 11. Hydraulic rod; 12. First connecting frame; 13. Canvas pressure roller; 14. First connecting shaft; 15. Second connecting frame; 16. Scraper; 17. First torsion spring; 18. Ratchet; 19. Second connecting shaft; 20. Pawl; 21. Second torsion spring; 22. Connecting block. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Please see Figure 1-5 This utility model provides a technical solution: an oil canvas coating thickness adjustment device, including a base 1, a fixed frame 3 fixedly connected to the upper end of the base 1, a coating scraping component, the coating scraping component being disposed inside the fixed frame 3, the coating scraping component including two first connecting shafts 14, both first connecting shafts 14 being rotatably connected inside the fixed frame 3, the surfaces of both first connecting shafts 14 being rotatably connected to second connecting brackets 15, the inner sides of the two second connecting brackets 15 being fixedly connected to four scrapers 16, the surface of the front first connecting shaft 14 being sleeved with a first torsion spring 17, the two ends of the first torsion spring 17 being fixedly connected to the surfaces of the first connecting shaft 14 and the second connecting bracket 15 respectively, the surface of the front first connecting shaft 14 being fixedly connected to a ratchet 18, the front side of the fixed frame 3 being rotatably connected to a second connecting shaft 19, the surface of the second connecting shaft 19 being fixedly connected to a pawl 20, the pawl 20 engaging with the ratchet 18, the surface of the second connecting shaft 19 being sleeved with a second torsion spring 21, the two ends of the second torsion spring 21 being fixedly connected to the fixed frame 3 and the pawl 20 respectively.

[0028] All four scrapers 16 are arc-shaped.

[0029] A connecting block 22 is fixedly connected to the surface of the first connecting shaft 14 on the front side. A hydraulic rod 11 is fixedly connected inside the fixed frame 3. A first connecting frame 12 is fixedly connected to the output end of the hydraulic rod 11. Two canvas pressure rollers 13 are rotatably connected to the inner side of the first connecting frame 12.

[0030] The upper end of the base 1 is fixedly connected to a first bracket 4, and the upper end of the base 1 is provided with a first canvas guide roller 5. There are four first brackets 4 and two first canvas guide rollers 5. The two first canvas guide rollers 5 are rotatably connected to the corresponding first brackets 4.

[0031] The upper end of the base 1 is fixedly connected to the oil immersion tank 2, and the upper end of the oil immersion tank 2 is rotatably connected to two second canvas guide rollers 6 and a third canvas guide roller 10.

[0032] The upper end of the oil immersion tank 2 is fixedly connected to a second connecting bracket 7, and the surface of the front second connecting bracket 7 is fixedly connected to a first drive motor 8. The output end of the first drive motor 8 is fixedly connected to a fourth guide roller 9, and the fourth guide roller 9 is rotatably connected to the two second connecting brackets 7.

[0033] When using the device, first place the canvas to be coated on the surface of the first canvas guide roller 5 on the left, and wrap it around the surfaces of the corresponding second canvas guide roller 6, fourth guide roller 9 and third canvas guide roller 10, and then guide it out from the surface of the first canvas guide roller 5 on the right, and place the canvas at the lower end of the canvas pressure roller 13 and wrap it around the surface of the corresponding scraper 16.

[0034] When coating the canvas surface, the hydraulic rod 11 is activated, causing the first connecting frame 12 to descend. The first connecting frame 12 then causes the canvas pressure roller 13 to descend, immersing the canvas in the immersion tank 2. The first drive motor 8 is activated, causing the fourth guide roller 9 to rotate, which in turn moves the canvas. Because the canvas surface has a certain tension during coating, the movement of the canvas over the scraper 16 scrapes the coating. Furthermore, the surface tension of the scraper 16 causes it to rotate around the first connecting shaft 14. A ratchet 18 is fixedly connected to the surface of 14, and a pawl 20 limits the ratchet 18. The pawl 20 is also limited by a second torsion spring 21, so that the pawl 20 is in close contact with the ratchet 18, and the ratchet 18 can only rotate clockwise. The force applied by the canvas to the scraper 16 causes the scraper 16 to rotate counterclockwise around the first connecting shaft 14, so that the first connecting shaft 14 and the second connecting frame 15 rotate relative to each other, causing the first torsion spring 17 to twist. Under the action of the first torsion spring 17, the scraper 16 applies a force to the canvas surface that is opposite to the surface tension of the canvas, so that the scraper 16 fits better against the surface of the canvas and scrapes the coating on the canvas surface.

[0035] When it is necessary to change the thickness of the coating on the canvas surface, the connecting block 22 is rotated clockwise, causing the connecting block 22 to drive the first connecting shaft 14 and the ratchet 18 to rotate. This causes the ratchet 18 to move the pawl 20. The first connecting shaft 14 and the second connecting frame 15 are connected by rotation, and a first torsion spring 17 is connected between the first connecting shaft 14 and the second connecting frame 15. During the rotation of the first connecting shaft 14, the scraper 16 is subjected to the surface tension of the canvas, causing relative rotation between the first connecting shaft 14 and the second connecting frame 15. Under the elastic force of the spring 17, the second connecting frame 15 and the scraper 16 rotate clockwise, which increases the contact force between the scraper 16 and the canvas surface. This allows the scraper 16 to remove excess canvas coating when scraping the canvas surface, thus reducing the thickness of the canvas surface coating. Similarly, by moving the pawl 20 and rotating the connecting block 22 counterclockwise, the first connecting shaft 14 rotates counterclockwise, reducing the torsion angle of the first torsion spring 17. This reduces the pressure applied by the scraper 16 to the canvas surface, thus increasing the thickness of the canvas surface coating.

[0036] Because the canvas has a certain tension during the coating process, the descent of the first connecting frame 12 and the canvas pressure roller 13 is controlled by the hydraulic rod 11. This facilitates the adjustment of the pressure applied by the canvas pressure roller 13 to the canvas surface, thus adjusting the canvas tension. Similarly, it can also adjust the length and tension of the canvas between the second canvas guide roller 6 and the third canvas guide roller 10. The first connecting shaft 14 is limited by the ratchet 18 and the pawl 20, causing the scraper 16 to rotate under the action of the first torsion spring 17 and the canvas tension. This allows for adjustment of the torsion angle of the first torsion spring 17 as needed, thus adjusting the pressure of the scraper 16 in contact with the canvas surface. This also changes the coating thickness on the canvas surface, making it easy to adjust the coating thickness. When it is necessary to increase the coating thickness on the canvas surface, the pressure of the canvas pressure roller 13 on the canvas is reduced, causing the scraper 16 to rotate counterclockwise under the action of the first torsion spring 17, reducing the pressure of the scraper 16 on the canvas and facilitating the increase of the coating thickness on the canvas surface.

[0037] Finally, the fourth guide roller 9 rotates and moves the canvas, which is then conveyed out by the third canvas guide roller 10 and the first canvas guide roller 5 on the right side of the device, facilitating subsequent processing of the canvas.

[0038] Furthermore, the engagement of the pawl 20 with the ratchet 18 facilitates the limiting of the first connecting shaft 14. The arrangement of the scraper 16 and the first torsion spring 17 allows for adjustment of the torsion angle of the first torsion spring 17 according to the tension of the canvas, and also allows for adjustment of the pressure when the scraper 16 contacts the canvas surface. This facilitates adjustment of the thickness of the coating on the canvas surface, enhancing the practicality and convenience of the device. An appropriate coating thickness can increase the stability and durability of the painting, providing better adhesion and support, preventing paint from falling off or cracking, and extending the life of the artwork.

[0039] By adjusting the descent of the canvas pressure roller 13, the contact pressure between the canvas pressure roller 13 and the canvas can be adjusted, as can the tension on the canvas surface. Furthermore, the arrangement of the first connecting shaft 14, the second connecting frame 15, the scraper 16, and the first torsion spring 17 facilitates the adjustment of the torsion angle of the first torsion spring 17, the scraping force between the scraper 16 and the canvas, and the thickness of the canvas coating, further enhancing the practicality and convenience of the device.

[0040] Structural Description: Base 1: Serves as the basic support structure for the entire device, providing installation locations for other components;

[0041] Oil immersion tank 2: Fixed to the upper end of base 1, used to hold the paint required for coating the canvas, so that the canvas can be immersed in it for coating operation;

[0042] Fixed frame 3: A frame structure fixed to the upper end of the base 1, providing installation and support for coating scraping components, etc.

[0043] First bracket 4: Fixed to the upper end of base 1, there are four of them, used to support the first canvas guide roller 5 and ensure its stable rotation;

[0044] First canvas guide roller 5: There are two of them, which are rotatably connected to the corresponding first bracket 4 to guide the conveying direction of the canvas, so that the canvas can smoothly enter and leave the device;

[0045] Second canvas guide roller 6: Rotatably connected to the upper end of the immersion tank 2, assisting in the conveying of the canvas at the immersion tank 2, and guiding the canvas into the immersion tank for coating;

[0046] Second connecting bracket 7: fixed at the upper end of oil immersion tank 2, used to support the fourth guide roller 9 and ensure its stable rotation;

[0047] First drive motor 8: Fixed on the surface of the second connecting bracket 7 on the front side, its output end is connected to the fourth guide roller 9, providing power for the rotation of the fourth guide roller 9, thereby driving the canvas to move;

[0048] The fourth guide roller 9 is rotatably connected to the two second connecting brackets 7 and rotates under the drive of the first drive motor 8, driving the canvas to move within the device;

[0049] The third canvas guide roller 10 is rotatably connected to the upper end of the immersion tank 2 and cooperates with the second canvas guide roller 6 to guide the conveying path of the canvas.

[0050] Hydraulic rod 11: Fixed inside the fixed frame 3, its output end is connected to the first connecting frame 12, and the lifting and lowering of the first connecting frame 12 and the canvas pressure roller 13 are controlled by telescopic movement, thereby adjusting the pressure and tension on the canvas;

[0051] First connecting frame 12: It is fixedly connected to the output end of hydraulic rod 11, and has two canvas pressure rollers 13 rotatably connected on the inner side. Under the drive of hydraulic rod 11, the canvas pressure rollers 13 apply pressure to the canvas.

[0052] Canvas pressure roller 13: Rotatably connected to the inside of the first connecting frame 12, and under the control of the hydraulic rod 11, it applies pressure to the canvas, adjusts the tension of the canvas, and thus affects the coating thickness.

[0053] First connecting shaft 14: Rotatably connected inside the fixed frame 3, it is the axis of rotation of the second connecting frame 15 and scraper 16, and rotation is limited by the cooperation of ratchet 18 and pawl 20.

[0054] The second connecting frame 15 is rotatably connected to the surface of the first connecting shaft 14, and four scrapers 16 are fixedly connected to its inner side, which drives the scrapers 16 to rotate around the first connecting shaft 14.

[0055] Scraper 16: It is arc-shaped, there are four in total, and it is fixed inside the second connecting frame 15. It scrapes the coating on the surface of the canvas, removes excess paint, and adjusts the coating thickness.

[0056] First torsion spring 17: sleeved on the surface of the first connecting shaft 14 on the front side, with both ends fixed to the surfaces of the first connecting shaft 14 and the second connecting frame 15 respectively, providing the scraper 16 with a force that is opposite to the surface tension of the canvas, so that the scraper 16 can better fit the canvas surface.

[0057] Ratchet 18: Fixed to the surface of the first connecting shaft 14 on the front side, cooperating with the pawl 20, restricting the first connecting shaft 14 to rotate only clockwise. By rotating the ratchet 18, the torsion angle of the first torsion spring 17 can be adjusted, thereby changing the pressure of the scraper 16 on the canvas.

[0058] Second connecting shaft 19: Rotatably connected to the front side of fixed frame 3, providing rotational support for pawl 20;

[0059] Pawl 20: Fixed to the surface of the second connecting shaft 19, engaging with the ratchet 18, and closely adhering to the ratchet 18 under the action of the second torsion spring 21, thereby limiting the ratchet 18 and the first connecting shaft 14;

[0060] The second torsion spring 21 is sleeved on the surface of the second connecting shaft 19, and its two ends are fixedly connected to the fixed frame 3 and the pawl 20 respectively, so that the pawl 20 is kept in the snap-fit ​​state with the ratchet 18.

[0061] Connecting block 22: Fixed to the surface of the first connecting shaft 14 on the front side. Rotating the connecting block 22 can drive the first connecting shaft 14 and the ratchet 18 to rotate, thereby adjusting the pressure of the scraper 16 in contact with the canvas surface and changing the coating thickness. The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model.

Claims

1. An oil painting canvas coating thickness adjusting device, characterized by: Includes a base (1), and a fixed frame (3) is fixedly connected to the upper end of the base (1); The coating scraping assembly is located inside the fixed frame (3). The coating scraping assembly includes two first connecting shafts (14), both of which are rotatably connected inside the fixed frame (3). The surfaces of the two first connecting shafts (14) are rotatably connected to second connecting frames (15). Four scrapers (16) are fixedly connected to the inner sides of the two second connecting frames (15). A first torsion spring (17) is sleeved on the surface of the front first connecting shaft (14). The two ends of the first torsion spring (17) are fixedly connected to the surfaces of the first connecting shaft (14) and the second connecting frame (15) respectively. A ratchet (18) is fixedly connected to the surface of the front first connecting shaft (14). The front side of the fixed frame (3) is rotatably connected to a second connecting shaft (19), and a pawl (20) is fixedly connected to the surface of the second connecting shaft (19). The pawl (20) is engaged with the ratchet (18), and a second torsion spring (21) is sleeved on the surface of the second connecting shaft (19). The two ends of the second torsion spring (21) are fixedly connected to the fixed frame (3) and the pawl (20) respectively.

2. The oil painting canvas coating thickness adjusting device according to claim 1, characterized in that: All four scrapers (16) are arc-shaped.

3. The canvas coating thickness adjustment device according to claim 1, characterized in that: A connecting block (22) is fixedly connected to the surface of the first connecting shaft (14) on the front side, a hydraulic rod (11) is fixedly connected inside the fixed frame (3), a first connecting frame (12) is fixedly connected to the output end of the hydraulic rod (11), and two canvas pressure rollers (13) are rotatably connected to the inner side of the first connecting frame (12).

4. The oil painting canvas coating thickness adjusting device according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to the first bracket (4), and the upper end of the base (1) is provided with the first canvas guide roller (5). There are four first supports (4) and two first canvas guide rollers (5). The two first canvas guide rollers (5) are rotatably connected to the corresponding first supports (4).

5. The oil painting canvas coating thickness adjusting device according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to an oil immersion tank (2), and the upper end of the oil immersion tank (2) is rotatably connected to two second canvas guide rollers (6) and a third canvas guide roller (10).

6. The oil painting canvas coating thickness adjusting device according to claim 5, characterized in that: The upper end of the immersion tank (2) is fixedly connected to a second connecting bracket (7), and the surface of the front second connecting bracket (7) is fixedly connected to a first drive motor (8). The output end of the first drive motor (8) is fixedly connected to a fourth guide roller (9), and the fourth guide roller (9) is rotatably connected to the two second connecting brackets (7).

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