Printing roller tensioning structure for printing machine

Abstract

The utility model relates to the technical field of printing machine devices, and discloses a printing roller tensioning structure for a printing machine, which comprises a base, the outer wall of the base is fixedly connected with a supporting rod, the outer wall of the supporting rod is fixedly connected with a supporting plate, the lower surface of the supporting plate is fixedly connected with a connecting plate, and the outer wall of the connecting plate is fixedly connected with a motor. And the output end of the motor is fixedly connected with a connecting shaft, the connecting shaft is rotationally connected to the interior of the connecting plate, the outer wall of the connecting shaft is fixedly connected with first bevel teeth, and the interior of the connecting plate is rotationally connected with a first threaded rod. The motor is started to drive the connecting shaft to rotate, the connecting shaft drives the first bevel gear and the third bevel gear to rotate, the first bevel gear drives the second bevel gear and the first threaded rod to rotate so as to drive the first sliding block to slide, the third bevel gear drives the fourth bevel gear and the second threaded rod to rotate so as to drive the second sliding block to slide, and then the conveying roller is driven to ascend and descend. Therefore, the tensioning effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of printing machine device technology, and in particular to a printing roller tensioning structure for a printing machine. Background Technology

[0002] The printing roller tensioning structure of a printing press is a key component ensuring proper contact between the printing roller and the printing plate (or printed material). This structure typically includes a tensioning device and an adjusting device to control the tension and position of the printing roller, ensuring good results and quality during the printing process. A precisely designed tensioning structure can adapt to different printing needs and material properties. Common components include pressure regulating devices, tension rollers, and tension bars, which work together to maintain the printing roller at the appropriate tension, achieving high-quality printing results.

[0003] In existing technology, most printing rollers or conveyor rollers of printing machines are fixed on the printing machine and cannot move. They can only print and transport the fabric or printed material in a fixed position and cannot be adjusted. This can cause the fabric to become loose during the printing process, resulting in printing failure and affecting the printing effect.

[0004] The existing technology has a fixed printing roller structure that cannot adjust the angle according to the slack of the fabric or other printed material to keep the fabric taut. When the fabric slacks during the printing process, it will lead to incomplete printing, thus affecting the printing effect. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a printing roller tensioning structure for a printing machine, which aims to improve the automatic tensioning adjustment effect of existing structures such as printing rollers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a printing roller tensioning structure for a printing machine, comprising a base, a support rod fixedly connected to the outer wall of the base, a support plate fixedly connected to the outer wall of the support rod, a connecting plate fixedly connected to the lower surface of the support plate, a motor fixedly connected to the outer wall of the connecting plate, a connecting shaft fixedly connected to the output end of the motor, the connecting shaft rotatably connected inside the connecting plate, a first bevel tooth fixedly connected to the outer wall of the connecting shaft, a first threaded rod rotatably connected inside the connecting plate, a second bevel tooth fixedly connected to the upper surface of the first threaded rod, the second bevel tooth meshing with the first bevel tooth, a first slider threadedly connected to the outer wall of the first threaded rod, the first slider slidably connected inside the support rod, the connecting plate being disposed at both ends of the lower surface of the support plate, a third bevel tooth fixedly connected to the outer wall of the connecting shaft, a second slider slidably connected inside the support rod, a conveyor roller rotatably connected inside the second slider, and a transmission assembly disposed inside the connecting plate for assisting in the lifting and lowering adjustment of the second slider.

[0007] Furthermore, the transmission assembly includes a second threaded rod, which is rotatably connected inside the connecting plate. A fourth bevel tooth is fixedly connected to the upper surface of the second threaded rod, and the fourth bevel tooth meshes with the third bevel tooth. The second threaded rod is threadedly connected inside the second slider.

[0008] Furthermore, a fixing plate is fixedly connected to the outer wall of the support rod, and a telescopic rod is fixedly connected to the outer wall of the support rod. A limit block is fixedly connected to the output end of the telescopic rod, and the limit block is slidably connected inside the fixing plate.

[0009] Furthermore, a limiting roller is fixedly connected inside the limiting block, a first sliding plate is slidably connected inside the limiting roller, a first cylinder is fixedly connected to the outer wall of the first sliding plate, and a second sliding plate is fixedly connected to the output end of the first cylinder.

[0010] Furthermore, the second slide plate is slidably connected inside the limiting roller, and a second cylinder is fixedly connected to the outer wall of the second slide plate, with the output end of the second cylinder fixedly connected to the outer wall of the first slide plate.

[0011] Furthermore, a feeding roller is rotatably connected inside the base, and a printing roller is rotatably connected inside the base.

[0012] Furthermore, an ink roller is rotatably connected inside the base, and an ink supply box is fixedly connected to the outer wall of the base.

[0013] Furthermore, the support rods are respectively disposed on both sides of the outer wall of the base, and the fixing plates are respectively disposed on the outer walls of the two support rods.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the starting motor drives the connecting shaft to rotate, the connecting shaft drives the first bevel tooth and the third bevel tooth to rotate, the first bevel tooth drives the second bevel tooth and the first threaded rod to rotate, thereby causing the first slider to slide inside the support rod, the third bevel tooth drives the fourth bevel tooth and the second threaded rod to rotate, thereby causing the second slider to slide inside the support rod, and then driving the conveyor roller to rise and fall, thereby achieving the tensioning effect through the rise and fall of the conveyor roller.

[0016] 2. In this utility model, the activation of two telescopic rods drives two limiting blocks to slide inside the two fixed plates, thereby driving the limiting roller to slide. At the same time, the activation of the first cylinder and the second cylinder drives the first sliding plate and the second sliding plate to slide inside the limiting roller. The distance between the first sliding plate and the second sliding plate can be adjusted according to the width of the fabric, thereby achieving the limiting of the fabric. The movement of the limiting roller also plays an auxiliary role in tensioning. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a printing roller tensioning structure for a printing machine proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the support rod structure of the printing roller tensioning structure for a printing machine proposed in this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 This is a schematic diagram of a limiting roller structure for a printing roller tensioning structure of a printing machine proposed in this utility model.

[0022] Legend:

[0023] 1. Base; 2. Support rod; 3. Support plate; 4. Connecting plate; 5. Motor; 6. Connecting shaft; 7. First bevel gear; 8. Second bevel gear; 9. First threaded rod; 10. First slider; 11. Third bevel gear; 12. Fourth bevel gear; 13. Second threaded rod; 14. Second slider; 15. Conveyor roller; 16. Fixing plate; 17. Telescopic rod; 18. Limiting block; 19. Limiting roller; 20. First sliding plate; 21. First cylinder; 22. Second sliding plate; 23. Second cylinder; 24. Feeding roller; 25. Printing roller; 26. Ink roller; 27. Ink supply box. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a printing roller tensioning structure for a printing machine, comprising a base 1, a support rod 2 fixedly connected to the outer wall of the base 1, a support plate 3 fixedly connected to the outer wall of the support rod 2, a connecting plate 4 fixedly connected to the lower surface of the support plate 3, a motor 5 fixedly connected to the outer wall of the connecting plate 4, a connecting shaft 6 fixedly connected to the output end of the motor 5, the connecting shaft 6 being rotatably connected inside the connecting plate 4, a first bevel tooth 7 fixedly connected to the outer wall of the connecting shaft 6, a first threaded rod 9 rotatably connected inside the connecting plate 4, a second bevel tooth 8 fixedly connected to the upper surface of the first threaded rod 9, the second bevel tooth 8 meshing with the first bevel tooth 7, and a first slider threadedly connected to the outer wall of the first threaded rod 9. 10. The first slider 10 is slidably connected inside the support rod 2. The connecting plate 4 is set at both ends of the lower surface of the support plate 3. The outer wall of the connecting shaft 6 is fixedly connected with the third bevel tooth 11. The second slider 14 is slidably connected inside the support rod 2. The conveying roller 15 is rotatably connected inside the second slider 14. The connecting plate 4 is provided with a transmission assembly. The transmission assembly is used to assist the lifting and adjusting of the second slider 14. The transmission assembly includes a second threaded rod 13. The second threaded rod 13 is rotatably connected inside the connecting plate 4. The upper surface of the second threaded rod 13 is fixedly connected with the fourth bevel tooth 12. The fourth bevel tooth 12 meshes with the third bevel tooth 11. The second threaded rod 13 is threadedly connected inside the second slider 14.

[0026] Specifically, the starter motor 5 drives the connecting shaft 6 to rotate. During the rotation of the connecting shaft 6, the first bevel gear 7 rotates, which in turn drives the second bevel gear 8 to rotate, thereby driving the first threaded rod 9 to rotate. This, in turn, causes the first slider 10 to slide up and down inside the support rod 2. During the rotation of the connecting shaft 6, the third bevel gear 11 also rotates, which in turn drives the fourth bevel gear 12 to rotate. The fourth bevel gear 12 drives the second threaded rod 13 to rotate, thereby causing the second slider 14 to slide up and down inside the support rod 2. Furthermore, the lifting and lowering of the first slider 10 and the second slider 14 drives the lifting and lowering adjustment of the conveyor roller 15. By adjusting the lifting and lowering of the conveyor roller 15, the fabric can be tensioned at different angles, thereby achieving the effect of automatic tension adjustment.

[0027] Reference Figure 1 , Figure 2 and Figure 5 A fixed plate 16 is fixedly connected to the outer wall of the support rod 2. A telescopic rod 17 is fixedly connected to the outer wall of the support rod 2. A limiting block 18 is fixedly connected to the output end of the telescopic rod 17. The limiting block 18 is slidably connected inside the fixed plate 16. A limiting roller 19 is fixedly connected inside the limiting block 18. A first sliding plate 20 is slidably connected inside the limiting roller 19. A first cylinder 21 is fixedly connected to the outer wall of the first sliding plate 20. A second sliding plate 22 is fixedly connected to the output end of the first cylinder 21. The second sliding plate 22 is slidably connected inside the limiting roller 19. A second cylinder 23 is fixedly connected to the outer wall of the second sliding plate 22. The output end of the second cylinder 23 is fixedly connected to the outer wall of the first sliding plate 20.

[0028] Specifically, activating the two telescopic rods 17 causes the two limiting blocks 18 to slide inside the two fixed plates 16, thereby causing the limiting rollers 19 to move back and forth. During the movement of the limiting rollers 19, the first sliding plate 20 and the second sliding plate 22 also move. The fabric passes through the gap between the first cylinder 21, the second cylinder 23 and the limiting rollers 19. Thus, the movement of the limiting rollers 19 also helps to tension the fabric. Activating the first cylinder 21 and the second cylinder 23 can simultaneously drive the first sliding plate 20 and the second sliding plate 22 to move closer or further apart, thereby adjusting the distance according to the width of the fabric to achieve the effect of limiting the fabric and thus assisting in tension adjustment.

[0029] Reference Figure 1 The base 1 is rotatably connected to a feeding roller 24, a printing roller 25, and an ink roller 26. The base 1 is fixedly connected to an ink supply box 27 on its outer wall. Support rods 2 are respectively set on both sides of the outer wall of the base 1, and fixing plates 16 are respectively set on the outer walls of the support rods 2 on both sides.

[0030] Specifically, the fabric is fed by the feeding roller 24 and conveyed by the conveying roller 15 and the limiting roller 19. The ink supply box 27 supplies ink to the ink roller 26, and the ink used for printing is transferred to the surface of the ink roller 26. The ink roller 26 prints the ink on the surface of the printing roller 25, and then the printing roller 25 prints the fabric. The two support rods 2 play a supporting and fixing role, and the two fixing plates 16 also play a supporting, fixing and limiting role.

[0031] Working principle: When tension adjustment of the printing machine is required, the fabric is first conveyed through the feeding roller 24, the conveyor roller 15, and the limiting roller 19. During the conveying process, the fabric may become loose and unable to be straightened. At this time, the starting motor 5 drives the connecting shaft 6 to rotate. During the rotation of the connecting shaft 6, the first bevel tooth 7 and the third bevel tooth 11 rotate, which in turn drives the second bevel tooth 8 and the fourth bevel tooth 12 to rotate, further driving the first threaded rod 9 and the second threaded rod 13 to rotate. This causes the first slider 10 and the second slider 14 to slide inside the support rod 2. During the sliding process, the conveyor roller 15 also slides up and down. The sliding of the conveyor roller 15 can straighten the fabric, thereby achieving the effect of automatic tension adjustment. Then, by starting the telescopic mechanism... Rod 17 drives the limiting block 18 to slide inside the fixed plate 16. The limiting block 18 drives the limiting roller 19 to slide back and forth, thereby driving the first slide plate 20 and the second slide plate 22 to slide back and forth together. This further drives the first cylinder 21 and the second cylinder 23 to slide. The fabric is conveyed through the gap between the first cylinder 21 and the second cylinder 23 and the limiting roller 19. Thus, the sliding of the limiting roller 19 also has a tensioning effect on the fabric. At the same time, activating the first cylinder 21 and the second cylinder 23 can drive the first slide plate 20 and the second slide plate 22 to move closer or further apart. The distance between the first slide plate 20 and the second slide plate 22 can be adjusted according to the width of the fabric to limit the fabric between the first slide plate 20 and the second slide plate 22, thereby achieving an auxiliary tensioning effect.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A printing roller tensioning structure for a printing machine, comprising a base (1), characterized in that: A support rod (2) is fixedly connected to the outer wall of the base (1). A support plate (3) is fixedly connected to the outer wall of the support rod (2). A connecting plate (4) is fixedly connected to the lower surface of the support plate (3). A motor (5) is fixedly connected to the outer wall of the connecting plate (4). A connecting shaft (6) is fixedly connected to the output end of the motor (5). The connecting shaft (6) is rotatably connected to the inside of the connecting plate (4). A first bevel tooth (7) is fixedly connected to the outer wall of the connecting shaft (6). A first threaded rod (9) is rotatably connected to the inside of the connecting plate (4). A second bevel tooth (8) is fixedly connected to the upper surface of the first threaded rod (9). The second bevel tooth (8) meshes with the first bevel tooth (7). The outer wall of the first threaded rod (9) is threaded with a first slider (10). The first slider (10) is slidably connected inside the support rod (2). The connecting plate (4) is set at both ends of the lower surface of the support plate (3). The outer wall of the connecting shaft (6) is fixedly connected with a third bevel tooth (11). The second slider (14) is slidably connected inside the support rod (2). The second slider (14) is rotatably connected to a conveyor roller (15). The connecting plate (4) is provided with a transmission assembly. The transmission assembly is used to assist the second slider (14) in lifting and adjusting.

2. The printing roller tensioning structure for a printing machine according to claim 1, characterized in that: The transmission assembly includes a second threaded rod (13), which is rotatably connected to the inside of the connecting plate (4). A fourth bevel tooth (12) is fixedly connected to the upper surface of the second threaded rod (13), which meshes with the third bevel tooth (11). The second threaded rod (13) is threadedly connected to the inside of the second slider (14).

3. The printing roller tensioning structure for a printing machine according to claim 1, characterized in that: A fixing plate (16) is fixedly connected to the outer wall of the support rod (2), and a telescopic rod (17) is fixedly connected to the outer wall of the support rod (2). A limit block (18) is fixedly connected to the output end of the telescopic rod (17), and the limit block (18) is slidably connected inside the fixing plate (16).

4. The printing roller tensioning structure for a printing machine according to claim 3, characterized in that: The limiting block (18) is fixedly connected to a limiting roller (19), and the limiting roller (19) is slidably connected to a first sliding plate (20). The outer wall of the first sliding plate (20) is fixedly connected to a first cylinder (21), and the output end of the first cylinder (21) is fixedly connected to a second sliding plate (22).

5. The printing roller tensioning structure for a printing machine according to claim 4, characterized in that: The second slide plate (22) is slidably connected inside the limiting roller (19), and the outer wall of the second slide plate (22) is fixedly connected to the second cylinder (23), and the output end of the second cylinder (23) is fixedly connected to the outer wall of the first slide plate (20).

6. The printing roller tensioning structure for a printing machine according to claim 1, characterized in that: The base (1) is rotatably connected to a feeding roller (24), and the base (1) is rotatably connected to a printing roller (25).

7. The printing roller tensioning structure for a printing machine according to claim 1, characterized in that: The base (1) is rotatably connected to an ink roller (26), and the outer wall of the base (1) is fixedly connected to an ink supply box (27).

8. The printing roller tensioning structure for a printing machine according to claim 3, characterized in that: The support rods (2) are respectively set on both sides of the outer wall of the base (1), and the fixing plates (16) are respectively set on the outer walls of the support rods (2) on both sides.

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