A calender for oil painting canvas smoothness processing
By using a flexible pressure strip and conductive strip structure, the problems of small contact area of the calender rollers and static electricity effects were solved, resulting in better calendering effect and static electricity elimination, thus improving the processing quality of the canvas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TIANYICHEN ART MATERIALS CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-08-04
AI Technical Summary
When calendering canvas, the contact area between the pressure roller and the canvas is small, which affects the calendering effect, and static electricity also affects the performance.
It adopts a flexible pressure strip and conductive strip structure. The flexible pressure strip is supported by a support plate, and the conductive strip contacts the canvas through conductive bristles to eliminate static electricity, improve the contact area and the static elimination effect.
It increases the calendering area, improves the calendering effect, eliminates the influence of static electricity on processing, and enhances the performance.
Smart Images
Figure CN224591198U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calendering technology, specifically a calendering machine for processing the smoothness of oil canvas. Background Technology
[0002] A canvas calender is a mechanical device specifically designed to improve the smoothness, density, and gloss of the canvas surface. It uses pressure, temperature, and mechanical action to make the canvas surface smoother, improve the adhesion of the coating, and enhance the painting effect.
[0003] Existing calendering machines typically calender canvases by pressing them with pressure rollers. However, the small contact area between the pressure rollers and the canvas during pressing affects the surface smoothness, resulting in poor calendering. Furthermore, static electricity on the canvas can negatively impact the calendering mechanism, further hindering its effectiveness.
[0004] Therefore, a calendering machine for processing the smoothness of oil canvas is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a calendering machine for processing the smoothness of oil canvas, which can solve the problem that the small contact area between the calendering mechanism and the oil canvas affects the calendering effect.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a calender for processing the smoothness of canvas, comprising a base, two first upright plates symmetrically mounted on the top of the base, and a plurality of sets of rotating rollers rotatably connected between the two first upright plates, each set of rotating rollers being connected by a flexible pressure belt.
[0007] Each of the flexible pressure strips is provided with a support plate inside. The adjacent surfaces of the two support plates are in contact with the side of the flexible pressure strip, and the two support plates are connected to the first upright plate through an adjustment mechanism.
[0008] Two second upright plates are symmetrically installed at one end of the top of the base. The top of each of the two second upright plates is provided with a groove. A fixing seat is installed inside each groove. Each fixing seat is provided with a strip groove at both the top and bottom ends, and several mounting grooves are provided at the ends of the strip grooves.
[0009] Two sets of conductive strips are provided between the two fixed seats. Both ends of each set of conductive strips extend into the corresponding mounting groove, and conductive bristles are installed at the adjacent ends of each set of conductive strips. The ends of the conductive bristles are in contact with the surface of the canvas.
[0010] A conductive sheet is installed on the inner wall of the mounting groove. The inner wall of the conductive sheet is in contact with the end of the conductive strip, and the conductive sheet is also connected to an external grounding mechanism through a ground wire.
[0011] Preferably, one end of one of the rotating rollers in each group penetrates the side wall of the first upright plate, and the end of the rotating roller is connected to a second drive motor, which is fixed to the side wall of the first upright plate.
[0012] Preferably, both ends of the two first upright plates are rotatably connected to a first guide roller.
[0013] Preferably, a gap is provided between the proximal ends of the two flexible pressure strips, through which the canvas passes.
[0014] Preferably, the adjustment mechanism includes connecting blocks symmetrically installed at both ends of each support plate, and each of the first upright plates has a through groove on its side, with one end of each connecting block extending into the corresponding through groove;
[0015] Each of the through slots is rotatably connected to a bidirectional lead screw. Two connecting blocks on the same side are threaded onto the corresponding bidirectional lead screw. The top of each bidirectional lead screw extends above the first upright plate. The top of each bidirectional lead screw is connected to a first drive motor, which is fixed to the top of the first upright plate.
[0016] Preferably, a heating groove is provided on the top of the support plate, and a heating resistance wire is installed inside the heating groove;
[0017] Furthermore, a cover plate is provided on the top of the support plate, which covers the opening of the heating groove, and the edge of the cover plate is fastened to the top of the support plate by bolts.
[0018] Preferably, guide blocks are symmetrically installed on both sides of each support plate, and strip guide grooves are opened on the adjacent surfaces of the two first upright plates. One end of each guide block extends into the corresponding strip guide groove, and each guide block is slidably connected to the strip guide groove.
[0019] Each of the support plates has openings at both ends, and a second guide roller is rotatably connected inside each opening. The side of each second guide roller abuts against the side of the flexible pressure belt.
[0020] Preferably, each of the fixed bases has a pair of fixed blocks installed at its upper and lower ends, and an L-shaped locking block is provided between each pair of fixed blocks. One end of each L-shaped locking block is rotatably connected to the fixed block via a rotating shaft, and the other end of each L-shaped locking block extends into the strip groove, and the end of the L-shaped locking block abuts against the side of the conductive strip.
[0021] Two pairs of limiting rollers are symmetrically installed between the two second vertical plates. The fixing seat is located between the two pairs of limiting rollers, and there is a gap between each pair of limiting rollers. The canvas passes through the gap.
[0022] Preferably, each of the L-shaped card blocks has at least one magnetic block installed on one side. When one end of the L-shaped card block is located in the strip groove, the side of the magnetic block is attracted and fixed to the side wall of the strip groove.
[0023] Preferably, a control cabinet is installed on the top of the base, and the controller inside the control cabinet is connected to the first drive motor, the second drive motor and the heating resistance wire respectively through wires.
[0024] Compared with the prior art, this utility model provides a calendering machine for processing the smoothness of oil canvas, which has the following beneficial effects:
[0025] 1. The support plate can support the flexible pressure plate, allowing the flexible pressure plate to perform calendering on the canvas. The large contact area between the flexible pressure plate and the canvas improves the calendering effect.
[0026] 2. By installing two sets of conductive strips on the fixed base, the conductive bristles on the conductive strips can fully contact both sides of the canvas, thereby effectively removing static electricity from the canvas, avoiding the impact of static electricity on the calendering process, and improving the performance. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;
[0028] Figure 2 This is a side sectional view of the structure of this utility model;
[0029] Figure 3 This is a schematic diagram of the support plate structure of this utility model;
[0030] Figure 4 This is a schematic diagram of the structure of the fixing base and conductive strip of this utility model;
[0031] Figure 5 This is a side view of the structure of the fixing base and conductive strip of this utility model.
[0032] In the diagram: 1. Base; 2. First upright plate; 3. Rotating roller; 4. Bidirectional lead screw; 5. Flexible pressure belt; 6. First drive motor; 7. Through slot; 8. Second drive motor; 9. First guide roller; 10. Fixed seat; 11. Second upright plate; 12. Conductive strip; 13. Limiting roller; 14. Groove; 15. Control cabinet; 16. Strip guide groove; 17. Mounting groove; 18. Conductive bristles; 19. Cover plate; 20. Heating resistance wire; 21. Support plate; 22. Guide block; 23. Connecting block; 24. Heating groove; 25. Opening groove; 26. Second guide roller; 27. L-shaped locking block; 28. Fixing block; 29. Magnetic block; 30. Ground wire; 31. Strip groove; 32. Conductive sheet; 33. Rotating shaft. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Example:
[0035] Please see Figure 1 - Figure 5 In this embodiment, a calender for processing the smoothness of canvas includes a base 1, a control cabinet 15 is installed on the top of the base 1, and a controller is provided inside the control cabinet 15. The controller is either a control motherboard or a PLC logic controller, and the controller is connected to an external power supply through wires. During use, the external power supply can supply power to the controller so that the controller can work normally.
[0036] It should be noted that the controller can be Siemens S7-200, S7-300, S7-1200, or other brands of controllers.
[0037] like Figure 1 and Figure 2 As shown, two first upright plates 2 are symmetrically installed on the top of the base 1. Several sets of rotating rollers 3 are rotatably connected between the two first upright plates 2. Each set of rotating rollers 3 is connected to each other by a flexible pressure belt 5. One end of one of the rotating rollers 3 in each set penetrates through the side wall of the first upright plate 2 and is connected to a second drive motor 8. The second drive motor 8 is fixed on the side wall of the first upright plate 2 and is connected to a controller through a wire. The second drive motor 8 can drive the corresponding rotating roller 3 to rotate, thereby controlling the movement of the corresponding flexible pressure belt 5.
[0038] It should be noted that, as Figure 1and Figure 2 As shown, both ends of the two first upright plates 2 are rotatably connected to first guide rollers 9, which can guide the canvas so that the canvas can move smoothly.
[0039] It should be noted that, as Figure 2 As shown, there is a gap between the near ends of the two flexible pressure belts 5. The canvas passes through this gap. When the canvas passes between the flexible pressure belts 5, it can be calendered by the flexible pressure belts 5. The calendering area is large, which improves the use effect.
[0040] like Figure 2 and Figure 3 As shown, each flexible pressing belt 5 is provided with a support plate 21 inside. The adjacent surfaces of the two support plates 21 are in contact with the side of the flexible pressing belt 5. The support plates 21 can support the flexible pressing belt 5, so that the flexible pressing belt 5 can be in close contact with the canvas when the canvas is calendered.
[0041] like Figure 1 and Figure 2 As shown, both support plates 21 are connected to the first upright plate 2 via an adjustment mechanism. The adjustment mechanism includes connecting blocks 23 symmetrically installed at both ends of each support plate 21. Each side of the first upright plate 2 has a through groove 7. One end of each connecting block 23 extends into the corresponding through groove 7. A bidirectional lead screw 4 is rotatably connected inside each through groove 7. The two connecting blocks 23 on the same side are threaded onto the corresponding bidirectional lead screw 4. The top of each bidirectional lead screw 4 extends above the first upright plate 2, and the top of each bidirectional lead screw 4 is connected to a first drive motor 6. The first drive motor 6 is fixed to the top of the first upright plate 2. Both first drive motors 6 are connected to a controller via wires. In actual use, the first drive motor 6 can drive the bidirectional lead screw 4 to rotate, thereby controlling the relative movement of the two connecting blocks 23 on the same side, which in turn drives the two support plates 21 to move relative to each other. The distance between the two support plates 21 can be adjusted as needed.
[0042] It should be noted that, as Figure 2 and Figure 3 As shown, guide blocks 22 are symmetrically installed on both sides of each support plate 21. Strip guide grooves 16 are opened on the adjacent surfaces of the two first upright plates 2. One end of each guide block 22 extends into the corresponding strip guide groove 16, and each guide block 22 is slidably connected to the strip guide groove 16. Through the cooperation of the guide block 22 and the strip guide groove 16, the support plate 21 can be limited, so that the support plate 21 remains stable.
[0043] like Figure 2 and Figure 3As shown, each support plate 21 has an opening slot 25 at both ends, and a second guide roller 26 is rotatably connected inside each opening slot 25. The side of each second guide roller 26 abuts against the side of the flexible pressure belt 5. The flexible pressure belt 5 can be supported and guided by the second guide roller 26, so that the flexible pressure belt 5 will not be scratched by the edge of the support plate 21 when it moves relative to the support plate 21.
[0044] like Figure 3 As shown, a heating groove 24 is provided on the top of the support plate 21. A heating resistance wire 20 is installed inside the heating groove 24. The wires of the heating resistance wire 20 pass through the through groove 7 and are connected to the controller. During use, the controller can control the heating resistance wire 20 to work. The heating resistance wire 20 can heat the support plate 21, and the heat is transferred to the surface of the flexible pressure strip 5, which can then heat the canvas and improve the calendering effect.
[0045] like Figure 3 As shown, a cover plate 19 is provided on the top of the support plate 21. The cover plate 19 covers the opening of the heating tank 24, and the edge of the cover plate 19 is fastened to the top of the support plate 21 by bolts. The cover plate 19 can block the opening of the heating tank 24 and protect the heating resistance wire 20 inside the heating tank 24.
[0046] like Figure 1 and Figure 4 As shown, two second upright plates 11 are symmetrically installed at one end of the top of the base 1. The top of each of the two second upright plates 11 is provided with a groove 14. A fixing seat 10 is installed inside each groove 14. Each fixing seat 10 has a strip groove 31 at both the top and bottom ends, and several mounting slots 17 are provided at the ends of the strip groove 31. Two sets of conductive strips 12 are provided between the two fixing seats 10. Both ends of each set of conductive strips 12 extend into the corresponding mounting slots 17, and conductive bristles 18 are installed at the near ends of each set of conductive strips 12. The ends of the conductive bristles 18 are in contact with the surface of the canvas. The conductive strips 12 are made of copper-plated stainless steel, so the conductive strips 12 have good conductivity. The conductive bristles 18 are made of stainless steel microfilaments or copper-plated polyester and other materials with conductive and wear-resistant properties. In actual use, the canvas will pass through the conductive bristles 18. At this time, the static electricity on the canvas will be conducted into the conductive strips 12 along the conductive bristles 18.
[0047] like Figure 1 and Figure 2 As shown, two pairs of limiting rollers 13 are symmetrically installed between the two second vertical plates 11. The fixed seat 10 is located between the two pairs of limiting rollers 13, and there is a gap between each pair of limiting rollers 13. The canvas passes through the gap, and the limiting rollers 13 can limit the canvas so that the canvas will not shake when it comes into contact with the conductive brush 18. In this way, the conductive brush 18 can make full contact with the canvas.
[0048] like Figure 4 and Figure 5 As shown, a conductive sheet 32 is installed on the inner wall of the mounting groove 17. The inner wall of the conductive sheet 32 is in contact with the end of the conductive strip 12, and the conductive sheet 32 is also connected to the external grounding mechanism through the ground wire 30. When the conductive brush 18 removes static electricity from the canvas, the static electricity will be transmitted to the conductive sheet 32 through the conductive strip 12, and finally transmitted to the grounding structure through the ground wire 30, thus completing the removal of static electricity from the canvas surface.
[0049] like Figure 4 and Figure 5 As shown, each fixed base 10 has a pair of fixed blocks 28 installed at both the upper and lower ends. Each pair of fixed blocks 28 is provided with an L-shaped locking block 27. One end of the L-shaped locking block 27 is rotatably connected to the fixed block 28 through a rotating shaft 33. The other end of each L-shaped locking block 27 extends into the strip groove 31. The end of the L-shaped locking block 27 abuts against the side of the conductive strip 12. The conductive strip 12 can be fixed in the mounting groove 17 by means of the L-shaped locking block 27, which is convenient for fixing.
[0050] like Figure 5 As shown, each L-shaped card block 27 has at least one magnetic block 29 installed on one side. When one end of the L-shaped card block 27 is located in the strip groove 31, the side of the magnetic block 29 is attracted and fixed to the side wall of the strip groove 31. The magnetic block 29 can attract and fix one end of the L-shaped card block 27 to the inside of the strip groove 31, so that the L-shaped card block 27 fixes the conductive strip 12. The fixing is convenient and the end of the L-shaped card block 27 will not separate from the side of the conductive strip 12.
[0051] The working principle of the above embodiments is as follows:
[0052] In use, the operator places both ends of the conductive strip 12 into the corresponding mounting slots 17, so that both ends of the conductive strip 12 contact the conductive sheet 32. Then, the operator rotates the L-shaped locking block 27, turning one end of the L-shaped locking block 27 into the strip groove 31, so that the end of the L-shaped locking block 27 abuts against the side of the conductive strip 12, fixing the conductive strip 12. Then, the fixing base 10 is installed in the groove 14. Then, the canvas is passed through the conductive bristles 18. In this way, when the canvas moves, the static electricity on the canvas can be transferred through the conductive bristles 18 to the conductive sheet 32 via the conductive strip 12, and finally to the grounding device through the ground wire 30, thus completing the static electricity elimination.
[0053] Before processing, the operator can control the first drive motor 6 to work. The first drive motor 6 drives the bidirectional lead screw 4 to rotate. During the rotation, the bidirectional lead screw 4 will control the two connecting blocks 23 to move relative to each other, thereby causing the support plate 21 to move relative to each other. When the support plate 21 moves, it will push the side of the flexible pressure belt 5 to move, thereby adjusting the distance between the close surfaces of the two flexible pressure belts 5.
[0054] During processing, the workers move the canvas through the conductive brush 18 and then between two flexible pressure belts 5. The canvas is then calendered by the flexible pressure belts 5. After processing, the canvas is wound up by the winding mechanism.
[0055] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.
[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A calendering machine for processing the smoothness of oil painting canvas, characterized in that: Includes a base (1), on which two first upright plates (2) are symmetrically installed. Several sets of rotating rollers (3) are rotatably connected between the two first upright plates (2), and each set of rotating rollers (3) is connected by a flexible pressure belt (5). Each of the flexible pressure strips (5) is provided with a support plate (21). The adjacent surfaces of the two support plates (21) are in contact with the side of the flexible pressure strip (5), and the two support plates (21) are connected to the first upright plate (2) through an adjustment mechanism. Two second upright plates (11) are symmetrically installed at one end of the top of the base (1). The top of each of the two second upright plates (11) is provided with a groove (14). A fixing seat (10) is installed inside each groove (14). Each fixing seat (10) has a strip groove (31) at both the upper and lower ends, and several mounting grooves (17) are provided at the ends of the strip groove (31). Two sets of conductive strips (12) are provided between the two fixed seats (10). Both ends of each set of conductive strips (12) extend into the corresponding mounting groove (17), and conductive bristles (18) are installed at the near ends of each set of conductive strips (12). The ends of the conductive bristles (18) are in contact with the surface of the canvas. A conductive sheet (32) is installed on the inner wall of the mounting groove (17). The inner wall of the conductive sheet (32) is in contact with the end of the conductive strip (12), and the conductive sheet (32) is also connected to an external grounding mechanism through a ground wire (30).
2. A calendering machine for processing the smoothness of oil canvas according to claim 1, characterized in that: One of the rotating rollers (3) in each group has its end penetrating through the side wall of the first upright plate (2), and the end of the rotating roller (3) is connected to the second drive motor (8), which is fixed on the side wall of the first upright plate (2).
3. A calendering machine for processing the smoothness of oil canvas according to claim 1, characterized in that: Both ends of the two first vertical plates (2) are rotatably connected to first guide rollers (9).
4. A calendering machine for processing the smoothness of oil canvas according to claim 1, characterized in that: A gap is provided between the proximal ends of the two flexible pressure strips (5), through which the canvas passes.
5. A calendering machine for processing the smoothness of oil canvas according to claim 2, characterized in that: The adjustment mechanism includes connecting blocks (23) symmetrically installed at both ends of each support plate (21). Each first upright plate (2) has a through groove (7) on its side, and one end of each connecting block (23) extends into the corresponding through groove (7). Each of the through slots (7) is rotatably connected to a bidirectional lead screw (4). Two connecting blocks (23) on the same side are threaded onto the corresponding bidirectional lead screw (4). The top of each bidirectional lead screw (4) extends above the first upright plate (2). The top of each bidirectional lead screw (4) is connected to a first drive motor (6), which is fixed to the top of the first upright plate (2).
6. A calendering machine for processing the smoothness of oil canvas according to claim 5, characterized in that: The top of the support plate (21) is provided with a heating groove (24), and a heating resistance wire (20) is installed inside the heating groove (24); Furthermore, a cover plate (19) is provided on the top of the support plate (21), the cover plate (19) covers the opening of the heating groove (24), and the edge of the cover plate (19) is fastened to the top of the support plate (21) by bolts.
7. A calendering machine for processing the smoothness of oil canvas according to claim 6, characterized in that: Each of the support plates (21) is also symmetrically equipped with guide blocks (22) on both sides. The adjacent surfaces of the two first upright plates (2) are provided with strip guide grooves (16). One end of each guide block (22) extends into the corresponding strip guide groove (16), and each guide block (22) is slidably connected to the strip guide groove (16). Each of the support plates (21) has an opening slot (25) at both ends, and a second guide roller (26) is rotatably connected inside each opening slot (25). The side of each second guide roller (26) abuts against the side of the flexible pressure belt (5).
8. A calendering machine for processing the smoothness of oil canvas according to claim 1, characterized in that: Each of the fixed bases (10) has a pair of fixed blocks (28) installed at its upper and lower ends. Each pair of fixed blocks (28) is provided with an L-shaped locking block (27). One end of the L-shaped locking block (27) is rotatably connected to the fixed block (28) through a rotating shaft (33). The other end of each L-shaped locking block (27) extends into the strip groove (31). The end of the L-shaped locking block (27) abuts against the side of the conductive strip (12). Two pairs of limiting rollers (13) are symmetrically installed between the two second vertical plates (11). The fixed seat (10) is located between the two pairs of limiting rollers (13), and there is a gap between each pair of limiting rollers (13), through which the canvas passes.
9. A calendering machine for processing the smoothness of oil canvas according to claim 8, characterized in that: Each of the L-shaped card blocks (27) has at least one magnetic block (29) installed on one side. When one end of the L-shaped card block (27) is located in the strip groove (31), the side of the magnetic block (29) is attracted and fixed to the side wall of the strip groove (31).
10. A calendering machine for processing the smoothness of oil canvas according to claim 6, characterized in that: A control cabinet (15) is installed on the top of the base (1). The controller inside the control cabinet (15) is connected to the first drive motor (6), the second drive motor (8) and the heating resistance wire (20) respectively through wires.