Printing plate roller braking device
By designing gear linkage between the drive component and the connecting component, the deceleration and braking of the printing roller are achieved, which solves the problem that the rotation of the printing roller after printing affects the registration accuracy, improves printing accuracy and reduces impact and noise.
Patent Information
- Application Number
- CN202520061330.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-11
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-11
AI Technical Summary
After printing is completed, the printing roller may rotate slightly due to the rotational force generated by the rotation, which will cause a change in the relative position between the printing roller and the printing plate, affecting the registration accuracy.
A printing roller braking device including a drive component and a connecting component was designed. Through the mechanical linkage of gears and racks, the rotating blades and wear-resistant blocks can be closed in a ring on the printing roller shaft to achieve deceleration and braking, and adapt to changes in the rotation speed of the printing roller.
It effectively reduces the positional change of the printing roller during secondary printing, improves the registration accuracy, and reduces the impact and noise on the printing roller and shaft through point braking.
Smart Images
Figure CN223672051U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to printing equipment technical field relates to a printing plate roll brake device. BACKGROUND
[0002] The printing machine is a mechanical equipment for printing characters, images and the like on paper, cloth, plastic or other materials, and the printing plate roll is a structural part on the printing machine. The printing plate roll, also known as a steel roll, is generally used for plate making. The surface of the roll is plated with copper, and then a pattern is engraved by a gravure electronic engraving machine, and then a layer of chromium is plated. The plate roll has various types, including a hollow roll and a solid roll, a shaft roll and a non-shaft roll, etc.
[0003] In the printing process, the plate roll is driven to rotate by a driving structure on the printing machine. The plate roll is responsible for transferring ink or paint from an ink tray or ink pool to a printing plate. By rotating and contacting the printing plate, the ink or paint is evenly coated on the surface of the printing plate. After printing is completed, the plate roll may rotate slightly due to the rotational force generated by rotation. The slight rotation of the plate roll may cause the relative position between the plate roll and the printing plate to change during secondary printing, thereby affecting the overprint accuracy. Therefore, we improve it and propose a printing plate roll braking device. UTILITY MODEL CONTENTS
[0004] The technical problem to be solved by the utility model is that after printing is completed, the plate roll may rotate slightly due to the rotational force generated by rotation. The slight rotation of the plate roll may cause the relative position between the plate roll and the printing plate to change during secondary printing, thereby affecting the overprint accuracy.
[0005] The printing plate roll braking device comprises a mounting bracket box plate roll body, the plate roll body is rotationally connected to the inner side of the mounting bracket, a braking assembly is mounted on one side of the mounting bracket, a sliding groove is formed in one end of the plate roll body penetrating through the mounting bracket, a driving assembly is mounted at the sliding groove on the plate roll body, a connecting assembly is arranged on the mounting bracket, a wear-resistant layer is mounted on one end of the plate roll body penetrating through the mounting bracket, the braking assembly comprises two mounting plates, one end of the two mounting plates is bolted to one side of the mounting bracket, one support disc is mounted on the end of the two mounting plates away from the bracket, a gear ring is rotationally connected in the support disc, a fourth gear is mounted on the support disc, and the fourth gear is meshed and connected with the outer side of the gear ring.
[0006] A plurality of fifth gears are meshed and connected on the inner side of the gear ring, the plurality of fifth gears are annularly rotationally connected on the same support disc, a rotating vane is rotationally connected on the fifth gear, and a wear-resistant block is mounted on the rotating vane.
[0007] The driving assembly comprises a first gear, a sliding block is mounted on the first gear, the sliding block is slidably connected in a sliding groove on a main body of the plate roller, annular sliding grooves are formed in both ends of the first gear, a sliding frame is slidably connected in both of the annular sliding grooves, an electric push rod is mounted on the sliding frame, and one end of the electric push rod, away from the sliding frame, is mounted on a mounting bracket.
[0008] The connecting assembly comprises a connecting plate, one end of the connecting plate is mounted on the mounting bracket, a second gear is rotatably connected on the connecting plate, a sliding box is mounted on the connecting plate, a reset spring rod is mounted in the sliding box, a first rack is mounted on one end of the reset spring rod, the first rack is slidably connected in the sliding box, a third gear is meshingly connected on the first rack, and a connecting shaft is mounted on the third gear.
[0009] One end of the connecting shaft, away from the third gear, is connected with a fourth gear, and the first rack is meshingly connected with the bottom of the second gear.
[0010] The mounting bracket is provided with a mounting rod at the bottom, and a mounting hole is formed in the mounting rod.
[0011] Compared with the prior art, the beneficial effects of the present application are that, through the cooperation of the driving assembly and the connecting assembly, the rotating blades and the wear-resistant blocks on the brake assembly can be accurately annularly closed on the wear-resistant layer of the one-end shaft of the plate roller body, effective deceleration braking is realized, and the problem that the plate roller may be slightly rotated due to the rotating force generated by rotation after printing is completed, thereby affecting the secondary printing precision, is solved.
[0012] Through the cooperation of the driving assembly and the connecting assembly, the brake assembly can adapt to the change of the rotating speed of the plate roller body, the faster the rotation, the faster the rotating blades and the wear-resistant blocks on the brake assembly are closed and opened, the adaptability enables the system to maintain effective braking effect at different printing speeds, through the cooperation of the driving assembly and the connecting assembly, the wear-resistant blocks on the brake assembly repeatedly brake the shaft on the plate roller body, the braking mode is more gentle than continuous braking, and the impact on the plate roller body and the shaft is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0014] Figure 1 It is the overall structural schematic view of the present application.
[0015] Figure 2 is the structural schematic diagram of the connecting plate of the utility model.
[0016] Figure 3 is the schematic diagram of the first gear section of the utility model.
[0017] Figure 4 is the structural schematic diagram of the sliding groove of the utility model.
[0018] Figure 5 is the structural schematic diagram of the connecting assembly of the utility model.
[0019] Figure 6 is the structural schematic diagram of the brake assembly of the utility model.
[0020] Figure 7 is the structural schematic diagram of the brake assembly separation of the utility model.
[0021] In the drawing: 1, mounting support; 2, version roller body; 3, first gear; 4, annular sliding groove; 5, sliding frame; 6, electric push rod; 7, connecting plate; 8, second gear; 9, sliding box; 10, reset spring rod; 11, first rack; 12, third gear; 14, connecting shaft; 15, mounting plate; 16, support disc; 17, gear ring; 18, fourth gear; 19, fifth gear; 20, rotating vane; 21, wear block; 22, wear layer; 23, sliding block; 24, sliding groove; 25, mounting rod; 26, mounting hole. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples.The specific examples described here are only used to explain the utility model, and are not used to limit the utility model.
[0023] In order to make the person in the art better understand the utility model scheme, the following will be clearly and completely described to the technical scheme in the embodiment of the utility model by combining with the drawings.
[0024] It should be noted that, in the case of no conflict, the examples in the utility model and the features and technical schemes in the examples can be combined with each other.
[0025] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0026] Example 1
[0027] As Figures 1-7The utility model discloses a printing plate roller brake device, including mounting support 1 and plate roller body 2, plate roller body 2 is connected in the inside of mounting support 1 rotation, one side of mounting support 1 is equipped with brake assembly, and one end of plate roller body 2 is equipped with sliding slot 24 through mounting support 1, and drive assembly is installed on the sliding slot 24 of plate roller body 2, and be provided with connecting assembly on mounting support 1, through the cooperation of drive assembly and connecting assembly, make the accurate annular closure of rotating blade 20 and wear -resistant block 21 on brake assembly on wear -resistant layer 22 of plate roller body 2 one end axle, realize effective deceleration brake, solve when printing is completed, and plate roller can be slightly rotated due to the rotary force of rotation, and then influence secondary printing accuracy problem,
[0028] The wear-resistant layer 22 is mounted on one end of the plate roller body 2 penetrating the mounting bracket 1. The brake assembly comprises two mounting plates 15, one end of the two mounting plates 15 is bolted to one side of the mounting bracket 1, and the same support disc 16 is mounted on the end of the two mounting plates 15 away from the bracket. The gear ring 17 is rotatably connected in the support disc 16. The fourth gear 18 is mounted on the support disc 16 and is meshingly connected with the outer side of the gear ring 17. The plurality of fifth gears 19 are meshingly connected to the inner side of the gear ring 17 and are annularly rotatably connected to the same support disc 16. The rotating vane 20 is rotatably connected to the fifth gear 19. The wear-resistant block 21 is mounted on the rotating vane 20. The drive assembly comprises the first gear 3. The sliding block 23 is mounted on the first gear 3. The sliding block 23 is slidingly connected in the sliding groove 24 on the plate roller body. The two annular sliding grooves 4 are formed at the two ends of the first gear 3. The same sliding frame 5 is slidingly connected in the two annular sliding grooves 4. The electric push rod 6 is mounted on the sliding frame 5. The end of the electric push rod 6 away from the sliding frame 5 is mounted on the mounting bracket 1. The connecting assembly comprises the connecting plate 7. One end of the connecting plate 7 is mounted on the mounting bracket 1. The second gear 8 is rotatably connected to the connecting plate 7. Since the sliding frame 5 is arranged in the shape of “Y” and the top end of the sliding frame 5 is slidingly connected with the two annular sliding grooves 4 on the first gear 3, when the first gear 3 rotates, the electric push rod 6 can push the sliding block 23 on the first gear 3 to slide in the sliding groove 24 on the plate roller body 2 through the sliding frame 5, so that when the plate roller body 2 is not printed, the first gear 3 is disengaged from the second gear 8, the first gear 3 is idled, the sliding box is mounted on the connecting plate 7. The reset spring rod 10 is mounted in the sliding box. One end of the reset spring rod 10 is provided with the first rack 11. The first rack 11 is slidingly connected in the sliding box 9. The third gear 12 is meshingly connected to the first rack 11. The connecting shaft 14 is mounted on the third gear 12. The end of the connecting shaft 14 away from the third gear 12 is connected with the fourth gear 18. The first rack 11 is meshingly connected with the bottom of the second gear 8. The mounting rod 25 is mounted at the bottom of the mounting bracket 1. The mounting hole 26 is formed in the mounting rod 25. The device can be fixed as a whole by mounting the external bolt in the mounting hole 26 of the mounting rod 25.
[0029] During operation, when the printing of the printing roller body 2 is completed, the electric push rod 6 pushes the sliding frame 5 to move, causing the sliding frame 5 to drive the first gear 3 to slide on the shaft of the printing roller body 2. Since the sliding frame 5 is set in a "Y" shape, and the inner side of the top of the sliding frame 5 is slidably connected to the two annular grooves 4 on the first gear 3, when the first gear 3 rotates, the electric push rod 6 can push the sliding block 23 on the first gear 3 to slide in the sliding groove 24 on the printing roller body 2 through the sliding frame 5, causing the first gear 3 to slide to a position flush with the second gear 8. The tooth grooves and teeth on the first gear 3 are set to one-tenth, and then when the first gear 3 reaches the position of the second gear 8, it drives the second gear 8 to rotate half a turn. The bottom of the second gear 8 The first rack 11, which is meshed with it, is translated. The first rack 11 slides within the sliding box 9, thus pressing the return spring rod 10. This translation causes the third gear 12, which is meshed with it at the other end, to rotate half a turn clockwise. The third gear 12 then rotates the connecting shaft 14, which in turn rotates the fourth gear 18 on the support plate 16. The fourth gear 18 then rotates the gear ring 17 on the brake assembly on the support plate 16. The gear ring 17 rotates the fifth gear 19, which is meshed with it on its inner side. The fifth gear 19 then drives each rotating blade 20 and wear-resistant block 21 to rotate around their respective central axes along a predetermined trajectory, thus achieving synchronous offset. The entire assembly is then combined. This achieves a change in the inner diameter. This mechanical linkage allows all rotating blades 20 and wear-resistant blocks 21 to open and close synchronously, and precisely controls the size of the central hole of the support plate 16. This causes the rotating blades 20 and wear-resistant blocks 21 on the braking assembly to form a ring-like closed loop on the wear-resistant layer 22 of one end shaft of the roller body 2, thus decelerating and braking the rotation of the roller body 2. The first gear 3 is driven to rotate through the roller body 2. At this time, the sliding box 9 on the connecting assembly is engaged with the teeth on the first gear 3 and the grooves on the second gear 8. The return spring rod 10 uses its elasticity to drive the first rack 11 to reset within the sliding box 9, simultaneously driving the third gear 12 to rotate half a turn in the opposite direction, causing the third gear 12 to rotate through the connecting assembly... The rotating blades 20 and wear-resistant blocks 21 on the shaft 14 drive the braking assembly to open, so that the wear-resistant blocks 21 no longer make ring contact with the wear-resistant layer 22 on the printing roller body 2. When the printing roller body 2 rotates slightly after printing, it drives the second gear 8 and the third gear 12 on the connecting assembly to rotate through the first gear 3 installed on the printing roller body 2. The third gear 12 drives the rotating blades 20 and wear-resistant blocks 21 on the braking assembly to reciprocate to close and open. The faster the printing roller body 2 rotates, the faster the rotating blades 20 and wear-resistant blocks 21 on the braking assembly close and open, so that the wear-resistant blocks 21 repeatedly apply point braking to the shaft on the printing roller body 2. The point braking effect also helps to reduce noise and vibration during the braking process.
[0030] Through cooperation of the driving assembly and the connecting assembly, the brake assembly can adapt to change of the rotating speed of the plate roller body 2, the faster the rotating speed is, the faster the rotating vane 20 and the wear-resistant block 21 on the brake assembly close and open, the adaptability enables the system to keep effective brake effect at different printing speeds, through cooperation of the driving assembly and the connecting assembly, the wear-resistant block 21 on the brake assembly repeatedly points the shaft on the plate roller body 2, the brake mode is more gentle than continuous brake, and impact on the plate roller body 2 and the shaft is reduced.
[0031] The preferred embodiments disclosed above are only used for helping to describe the utility model. The preferred embodiments do not describe all the details, and also do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.
Claims
1. A plate cylinder braking device for printing, characterized by: The utility model provides a printing plate roller, including installation support (1) box edition roller body (2), edition roller body (2) is rotatably connected in the inside of installation support (1), one side of installation support (1) is equipped with brake assembly, edition roller body (2) is passed through the one end of installation support (1) and is equipped with sliding slot (24), edition roller body (2) on sliding slot (24) is equipped with drive assembly, installation support (1) is provided with connecting assembly, edition roller body (2) is passed through the one end of installation support (1) and is equipped with wear -resisting layer (22), brake assembly includes two mounting plates (15), one end of two mounting plates (15) is bolted to the one side of installation support (1), and one support disc (16) is installed to the one end of two mounting plates (15) away from press support, the inside rotation is connected gear ring (17) in support disc (16), fourth gear (18) is installed on support disc (16), and fourth gear (18) is engagedly connected with the outside of gear ring (17).
2. A printing plate roller braking device according to claim 1, characterized in that: The inside of gear ring (17) is engagedly connected with a plurality of fifth gears (19), a plurality of fifth gears (19) are annularly rotatably connected on the same support disc (16), a rotating vane (20) is rotatably connected on the fifth gear (19), and a wear block (21) is installed on the rotating vane (20).
3. The plate cylinder braking device according to claim 1, characterized in that: The drive assembly includes a first gear (3), a sliding block (23) is installed on the first gear (3), the sliding block (23) is slidably connected in the sliding slot (24) on the edition roller body, annular sliding grooves (4) are formed at both ends of the first gear (3), and the same sliding frame (5) is slidably connected in the two annular sliding grooves (4). An electric push rod (6) is installed on the sliding frame (5), and the electric push rod (6) is installed on the installation support (1) away from the sliding frame (5).
4. The plate cylinder braking device according to claim 1, characterized in that: The connecting assembly includes a connecting plate (7), one end of the connecting plate (7) is installed on the installation support (1), a second gear (8) is rotatably connected on the connecting plate (7), a sliding box is installed on the connecting plate (7), a reset spring rod (10) is installed in the sliding box, a first rack (11) is installed at one end of the reset spring rod (10), the first rack (11) is slidably connected in the sliding box (9), a third gear (12) is engagedly connected on the first rack (11), and a connecting shaft (14) is installed on the third gear (12).
5. A printing plate roller braking device according to claim 4, wherein: One end of the connecting shaft (14) away from the third gear (12) is connected with the fourth gear (18), and the first rack (11) is engagedly connected with the bottom of the second gear (8).
6. A printing plate roller braking device according to claim 1, wherein: An installation rod (25) is installed at the bottom of the installation support (1), and a mounting hole (26) is formed in the installation rod (25).