Printing press cylinder with conditioning structure

Abstract

The utility model discloses a printing machine roller with adjusting structure relates to printing roller related technical field, including installation frame, fixed roller is rotatably installed in the installation frame, and the installation frame is swingly installed with the adjusting roller in, and the outer wall sliding installation of installation frame has the adjusting frame of the roller axle rotation connection with adjusting roller. The utility model discloses the bolt that sets up and adjusts the rack cooperation, can conveniently adjust the interval of fixed roller and adjusting roller, and adapts to different thickness paper, and the transmission mechanism can drive two roller synchronous rotation with the help of single motor, reduces energy consumption, and meets the energy -conserving environmental protection demand, and simultaneously adjusting mechanism passes through adjusting gear, rack and tooth groove linkage, makes the adjusting block with adjusting rack synchronous sliding, drives the adjusting wheel to be tight transmission belt, avoids transmission slack, guarantees power steady transmission, improves the adjusting flexibility of printing machine roller, operating stability and energy saving, and is applicable to diversified printing scene.

Description

Technical Field

[0001] This utility model relates to the technical field of printing rollers, specifically a printing press roller with an adjustable structure. Background Technology

[0002] In the printing industry, printing press rollers are core components, and the accuracy of their spacing adjustment directly affects the stability of paper feeding and printing quality. For papers of different thicknesses and materials, the roller spacing needs to be adjusted to adapt to the paper characteristics in order to avoid problems such as paper jams and blurry printing. With the diversification of printing processes, the requirements for the flexibility and efficiency of roller adjustment are becoming increasingly stringent. Roller structures with adjustable functions have become the key to improving printing adaptability and are driving the upgrading of printing equipment towards intelligence and multi-functionality.

[0003] Existing printing press rollers with adjustable structures, such as the printing press roller with Chinese Patent Publication No. CN218366895U, include a main body housing a device, a first printing press roller housed inside the main body housing a second printing press roller housed at the bottom of the first printing press roller, and a drive motor housed on one side of the second printing press roller. This printing press roller, through the arrangement of the first printing press roller, the second printing press roller, an adjusting hydraulic cylinder, and a hydraulic cylinder drive shaft, causes the motor drive shaft to drive the first and second printing press rollers to rotate. The first and second printing press rollers drive the roller fixing shaft, and a rotating disk connected to the fixing shaft rotates inside the fixed shaft rotating drum. When it is necessary to adjust the gap between the first and second printing press rollers, the rotating drum fixing shaft drives the second printing press roller to move up and down, thereby adjusting the size of the gap between the first and second printing press rollers, thus realizing the adjustment function of the printing press roller.

[0004] The operation of the printing press rollers mentioned above relies on the coordinated work of various electrical components such as drive motors and adjusting hydraulic cylinders. The continuous driving of the rollers by the motors and the frequent extension and retraction of the hydraulic cylinders consume a lot of electrical energy. This problem of excessive energy consumption is particularly prominent under long-term batch printing or frequent adjustment conditions, which is not in line with the industry's trend of energy conservation and environmental protection. Therefore, it is urgent to improve the existing printing press rollers. Summary of the Invention

[0005] Therefore, the purpose of this utility model is to provide a printing press roller with an adjustable structure to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a printing press roller with an adjustable structure, comprising a mounting frame, a fixed roller rotatably mounted inside the mounting frame, an adjustable roller movably mounted inside the mounting frame, and an adjusting frame slidably mounted on the outer wall of the mounting frame and rotatably connected to the roller shaft of the adjustable roller, and a stud threadedly connected to the adjusting frame is rotatably mounted on the top of the mounting frame.

[0007] The mounting frame is provided with a transmission mechanism on its outer side, which is used to synchronously drive the roller shafts of the adjusting roller and the fixed roller to rotate synchronously. The transmission mechanism is connected to a motor installed on the outer wall of the adjusting frame. The outer wall of the mounting frame is provided with an adjusting mechanism that cooperates with the transmission mechanism and the adjusting frame. The adjusting mechanism includes an adjusting block that is slidably installed on the outer wall of the mounting frame. The outer wall of the adjusting block is rotatably connected to the adjusting wheel in the transmission mechanism, which is used to tighten the transmission belt in the transmission mechanism. The adjusting block will slide synchronously with the lifting and lowering of the adjusting frame.

[0008] By adopting the above technical solution, since the adjustment frame adjusts the distance between the rollers through the studs, and the transmission mechanism is driven by a single motor to rotate the two rollers synchronously, and the adjustment mechanism drives the adjustment wheel to tighten the transmission belt, it can adapt to different paper thicknesses, reduce energy consumption, and ensure stable power.

[0009] Furthermore, the adjustment frame is designed in an inverted U-shape, and both ends of the adjustment frame are rotatably connected to the ends of the roller shafts of the adjustment roller.

[0010] By adopting the above technical solution, the weight of the bearing roller can be balanced, and the roller shaft can be prevented from tilting during adjustment.

[0011] Furthermore, the outer wall of the mounting frame is provided with an adjustment groove corresponding to the roller shaft of the adjustment roller, and a telescopic rod fixedly connected to the adjustment frame is installed on the top of the mounting frame.

[0012] By adopting the above technical solution, the adjustment groove provides the roller shaft with a space for movement, avoiding interference during adjustment; the telescopic rod assists the vertical lifting and lowering of the adjustment frame to prevent deviation, making the roller spacing adjustment more precise and the operation smoother.

[0013] Furthermore, the transmission mechanism includes a transmission wheel 1 installed at both the motor end and the roller shaft end of the adjusting roller, a transmission wheel 2 installed at the roller shaft end of the adjusting roller, a transmission wheel 3 rotatably installed on the outer wall of the mounting frame, and an adjusting wheel installed on the outer wall of the adjusting block. It also includes two sets of transmission gears installed on the outer wall of the transmission wheel 3 and at the roller shaft end of the fixed roller, which mesh with each other. The two sets of transmission wheels 1 are connected to each other and the transmission wheel 2 is connected to the transmission wheel 3 and the adjusting wheel via transmission belts.

[0014] By adopting the above technical solution, the transmission mechanism is linked with the transmission wheel and gear, so that a single motor can drive the adjusting roller and the fixed roller to rotate synchronously, reducing the use of electrical components and reducing energy consumption.

[0015] Furthermore, the adjustment mechanism also includes an adjustment gear rotatably mounted on the outer wall of the mounting frame and a rack fixedly mounted on the outer wall of the adjustment frame, as well as a toothed groove formed on the outer wall of the adjustment block. The rack is located on one side of the adjustment gear and meshes with the adjustment gear, while the toothed groove is located below the adjustment gear and meshes with the adjustment gear.

[0016] By adopting the above technical solution, the adjusting block slides synchronously with the adjusting frame, driving the adjusting wheel to tighten the transmission belt, avoiding the movement of the adjusting roller that would cause the transmission to loosen, and ensuring stable power transmission.

[0017] Furthermore, the position of the adjusting block is offset from the position of the rack, and the adjusting gear consists of two interconnected gears, wherein the gear closer to the mounting frame meshes with the rack, and the other gear meshes with the tooth groove.

[0018] By adopting the above technical solution, motion interference is prevented and the coordinated movement of the adjusting frame and the adjusting block is ensured.

[0019] Furthermore, the distance between the adjusting block and the outer wall of the roller is greater than the upward movement distance of the adjusting frame, and the lengths of both the adjusting block and the rack are greater than the upward movement distance of the adjusting frame.

[0020] By adopting the above technical solution, it is ensured that the adjusting wheel can effectively tension the transmission belt within the maximum adjustment range.

[0021] In summary, the present invention has the following main advantages:

[0022] This invention allows for convenient adjustment of the distance between the fixed roller and the adjusting roller through the combination of a stud and an adjusting frame, adapting to different paper thicknesses. The transmission mechanism uses a single motor to drive the two rollers to rotate synchronously, reducing energy consumption and meeting energy-saving and environmental protection requirements. At the same time, the adjusting mechanism, through the linkage of adjusting gears, racks, and toothed grooves, allows the adjusting block to slide synchronously with the adjusting frame, driving the adjusting wheel to tighten the transmission belt, preventing transmission slack, ensuring stable power transmission, and improving the adjustment flexibility, operational stability, and energy efficiency of the printing press rollers, making it suitable for diverse printing scenarios. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the disassembled components of this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of the present invention;

[0026] Figure 4This is a structural diagram of the disassembled components of this utility model, including the adjusting roller, the fixed roller, and the adjusting frame.

[0027] In the diagram: 1. Mounting frame; 2. Adjusting roller; 3. Fixed roller; 4. Roller shaft; 40. Adjusting groove; 41. Motor; 42. Transmission wheel one; 43. Transmission wheel two; 44. Transmission wheel three; 45. Adjusting wheel; 46. Transmission gear; 5. Adjusting frame; 51. Telescopic rod; 6. Stud; 7. Handle; 8. Adjusting block; 9. Adjusting gear; 10. Rack; 11. Gear groove. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of this utility model will be described below based on its overall structure.

[0030] A printing press roller with an adjustable structure, such as Figure 1 - Figure 4 As shown, it includes a mounting frame 1, a fixed roller 3, and an adjusting roller 2;

[0031] The mounting frame 1 has a fixed roller 3 rotatably mounted inside the mounting frame 1, and an adjusting roller 2 movably mounted inside the mounting frame 1. An adjusting frame 5 is slidably mounted on the outer wall of the mounting frame 1. The adjusting frame 5 is rotatably connected to the roller shaft 4 of the adjusting roller 2. A stud 6 is rotatably mounted on the top of the mounting frame 1. The stud 6 is threadedly connected to the adjusting frame 5. By rotating the stud 6, the adjusting frame 5 can be raised and lowered, thereby adjusting the distance between the adjusting roller 2 and the fixed roller 3 to accommodate paper of different thicknesses.

[0032] In this embodiment, a transmission mechanism is provided on the outside of the mounting frame 1. The transmission mechanism is used to synchronously drive the roller shaft 4 of the adjusting roller 2 and the fixed roller 3 to rotate synchronously. The transmission mechanism is connected to the motor 41 installed on the outer wall of the adjusting frame 5. The motor 41 provides power to the transmission mechanism.

[0033] In this embodiment, the outer wall of the mounting frame 1 is provided with an adjustment mechanism that cooperates with the transmission mechanism and the adjustment frame 5. The adjustment mechanism includes an adjustment block 8 that is slidably installed on the outer wall of the mounting frame 1. The outer wall of the adjustment block 8 is rotatably connected to the adjustment wheel 45 in the transmission mechanism, which is used to tighten the transmission belt in the transmission mechanism. The adjustment block 8 will slide synchronously with the lifting and lowering of the adjustment frame 5 to ensure that the transmission belt is always in a taut state.

[0034] In this embodiment, the adjustment frame 5 is designed in an inverted U-shape, and both ends of the adjustment frame 5 are rotatably connected to the ends of the roller shaft 4 of the adjustment roller 2. The inverted U-shape design can stably support the adjustment roller 2 and ensure its stability during rotation.

[0035] In this embodiment, the outer wall of the mounting frame 1 is provided with an adjustment groove 40 corresponding to the roller shaft 4 of the adjustment roller 2. The adjustment groove 40 provides space for the movement of the roller shaft 4, and avoids interference between the adjustment roller 2 and the mounting frame 1 when the roller 2 is raised or lowered.

[0036] Meanwhile, a telescopic rod 51, which is fixedly connected to the adjustment frame 5, is installed on the top of the mounting frame 1. The telescopic rod 51 is used to assist the adjustment frame 5 in maintaining stable lifting and lowering, and to prevent the adjustment frame 5 from deviating during the sliding process.

[0037] The transmission mechanism in this embodiment includes a first transmission wheel 42, a second transmission wheel 43, a third transmission wheel 44, an adjusting wheel 45, and a transmission gear 46;

[0038] Among them, the transmission wheel 42 is installed at the end of the motor 41 and the end of the roller shaft 4 of the adjusting roller 2. The two sets of transmission wheels 42 are connected by a transmission belt to transmit the power of the motor 41 to the roller shaft 4 of the adjusting roller 2.

[0039] Secondly, transmission wheel 43 is installed at the end of the roller shaft 4 of the adjusting roller 2, transmission wheel 44 is rotatably installed on the outer wall of the mounting frame 1, and adjusting wheel 45 is installed on the outer wall of the adjusting block 8. Transmission wheel 43 is connected to transmission wheel 44 and adjusting wheel 45 by a transmission belt.

[0040] The transmission gears 46 are installed on the outer wall of the transmission wheel 3 44 and at the end of the roller shaft 4 of the fixed roller 3. The two sets of transmission gears 46 mesh with each other to transmit power from the transmission wheel 3 44 to the roller shaft 4 of the fixed roller 3, so as to realize the synchronous rotation of the adjusting roller 2 and the fixed roller 3.

[0041] In this embodiment, the adjustment mechanism further includes an adjustment gear 9, a rack 10, and a toothed groove 11;

[0042] Among them, the adjusting gear 9 is rotatably mounted on the outer wall of the mounting frame 1, the rack 10 is fixedly mounted on the outer wall of the adjusting frame 5, and the tooth groove 11 is opened on the outer wall of the adjusting block 8;

[0043] Meanwhile, rack 10 is located on one side of adjusting gear 9 and meshes with adjusting gear 9, and tooth groove 11 is located below adjusting gear 9 and meshes with adjusting gear 9; adjusting gear 9 consists of two interconnected gears, of which the gear closer to mounting frame 1 meshes with rack 10, and the other gear meshes with tooth groove 11. Through the transmission of adjusting gear 9, synchronous movement of adjusting frame 5 and adjusting block 8 can be achieved.

[0044] In this embodiment, the position of the adjusting block 8 is offset from the position of the rack 10 to avoid interference between the two during movement;

[0045] The distance between the adjusting block 8 and the outer wall of the roller 4 is greater than the upward movement distance of the adjusting frame 5, and the lengths of both the adjusting block 8 and the rack 10 are greater than the upward movement distance of the adjusting frame 5, ensuring that the adjusting mechanism and the transmission mechanism can work stably within the adjustment range of the adjusting frame 5.

[0046] It should be noted that in this embodiment, the first transmission wheel 42, the second transmission wheel 43, the third transmission wheel 44 and the adjusting wheel 45 can be pulleys, and the corresponding transmission belt is a belt. However, the first transmission wheel 42, the second transmission wheel 43, the third transmission wheel 44 and the adjusting wheel 45 can also be sprockets, and the corresponding transmission belt is a chain. In this embodiment, there is no direct limitation on this.

[0047] Meanwhile, the actual transmission ratio between gear 9 and rack 10 and tooth groove 11 can also be determined according to actual usage requirements, and is not completely limited in this embodiment.

[0048] The working principle of this utility model is as follows: Before the printing operation, it is necessary to ensure that the distance between the adjusting roller 2 and the fixed roller 3 is adapted to the thickness of the paper to be printed. After the adjustment is completed, the motor 41 installed on the outer wall of the adjusting frame 5 is started. The output end of the motor 41 drives the transmission wheel 42 at its end to rotate. Since the two sets of transmission wheels 42 are connected by a transmission belt, the power of the motor 41 will be transmitted to the roller shaft 4 of the adjusting roller 2, driving the adjusting roller 2 to rotate. At the same time, the transmission wheel 43 at the end of the roller shaft 4 of the adjusting roller 2 transmits the power to the transmission wheel 44 rotatably installed on the outer wall of the mounting frame 1 through the transmission belt. Since the transmission gear 46 on the outer wall of the transmission wheel 44 meshes with the transmission gear 46 at the end of the roller shaft 4 of the fixed roller 3, the fixed roller 3 and the adjusting roller 2 are driven to rotate synchronously, providing power for paper feeding.

[0049] When it is necessary to adjust the roller spacing according to the paper thickness, firstly, turn the handle 7 at the end of the stud 6. Since the stud 6 is threadedly connected to the adjusting frame 5, it will drive the adjusting frame 5 to slide up and down along the outer wall of the mounting frame 1. At the same time, the adjusting groove 40 on the outer wall of the mounting frame 1 provides the roller shaft 4 of the adjusting roller 2 with room to move. One end of the telescopic rod 51 is connected to the top of the mounting frame 1, and the other end is fixed to the adjusting frame 5 to help the adjusting frame 5 maintain stable lifting and lowering. Since the adjusting frame 5 is in an inverted U shape, and its two ends are rotatably connected to the ends of the roller shaft 4 of the adjusting roller 2, the lifting and lowering of the adjusting frame 5 will drive the adjusting roller 2 to move synchronously, changing the spacing between it and the fixed roller 3.

[0050] As the adjusting frame 5 rises and falls, the rack 10 on its outer wall drives the adjusting gear 9 to rotate. Since the adjusting gear 9 consists of two interconnected gears, and the other gear meshes with the tooth groove 11 on the outer wall of the adjusting block 8, it drives the adjusting block 8 to slide along the outer wall of the mounting frame 1. Because the adjusting block 8 and the rack 10 are misaligned, interference can be avoided. Since the adjusting block 8 is rotatably connected to the adjusting wheel 45, the sliding of the adjusting block 8 will drive the adjusting wheel 45 to move synchronously, always applying tension to the transmission belt and preventing the transmission belt from loosening due to the movement of the adjusting roller 2.

[0051] After adjustment, since the lengths of the adjusting block 8 and the rack 10 are both greater than the upward movement distance of the adjusting frame 5, the transmission belt is always taut within the adjustment range, and the roller 4 can rotate stably.

[0052] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A printing press roller with an adjustable structure, characterized in that, The system includes a mounting frame (1), in which a fixed roller (3) is rotatably mounted, and an adjusting roller (2) is movably mounted. An adjusting frame (5) is slidably mounted on the outer wall of the mounting frame (1) and rotatably connected to the roller shaft (4) of the adjusting roller (2). A stud (6) is rotatably mounted on the top of the mounting frame (1) and threadedly connected to the adjusting frame (5). The mounting frame (1) is provided with a transmission mechanism on the outside, which is used to synchronously drive the roller shaft (4) of the adjusting roller (2) and the fixed roller (3) to rotate synchronously. The transmission mechanism is connected to the motor (41) installed on the outer wall of the adjusting frame (5). The outer wall of the mounting frame (1) is provided with an adjusting mechanism that cooperates with the transmission mechanism and the adjusting frame (5). The adjusting mechanism includes an adjusting block (8) that is slidably installed on the outer wall of the mounting frame (1). The outer wall of the adjusting block (8) is rotatably connected to the adjusting wheel (45) in the transmission mechanism, which is used to tighten the transmission belt in the transmission mechanism. The adjusting block (8) will slide synchronously with the lifting and lowering of the adjusting frame (5).

2. A printing press roller with an adjustable structure according to claim 1, characterized in that: The adjustment frame (5) is designed in an inverted U-shape, and both ends of the adjustment frame (5) are rotatably connected to the ends of the roller shaft (4) of the adjustment roller (2).

3. A printing press roller with an adjustable structure according to claim 1, characterized in that: The outer wall of the mounting frame (1) is provided with an adjustment groove (40) corresponding to the roller shaft (4) of the adjustment roller (2), and a telescopic rod (51) fixedly connected to the adjustment frame (5) is installed on the top of the mounting frame (1).

4. A printing press roller with an adjustable structure according to claim 1, characterized in that: The transmission mechanism includes a first transmission wheel (42) installed at the end of the motor (41) and the end of the roller shaft (4) of the adjusting roller (2), a second transmission wheel (43) installed at the end of the roller shaft (4) of the adjusting roller (2), a third transmission wheel (44) rotatably installed on the outer wall of the mounting frame (1) and an adjusting wheel (45) installed on the outer wall of the adjusting block (8), and two sets of transmission gears (46) installed on the outer wall of the third transmission wheel (44) and the end of the roller shaft (4) of the fixed roller (3) and meshing with each other. The two sets of first transmission wheels (42) are connected to each other, as are the second transmission wheel (43) and the third transmission wheel (44) and the adjusting wheel (45) by transmission belts.

5. A printing press roller with an adjustable structure according to claim 1, characterized in that: The adjustment mechanism also includes an adjustment gear (9) rotatably mounted on the outer wall of the mounting frame (1) and a rack (10) fixedly mounted on the outer wall of the adjustment frame (5), as well as a toothed groove (11) opened on the outer wall of the adjustment block (8). The rack (10) is located on one side of the adjustment gear (9) and meshes with the adjustment gear (9), while the toothed groove (11) is located below the adjustment gear (9) and meshes with the adjustment gear (9).

6. A printing press roller with an adjustable structure according to claim 5, characterized in that: The position of the adjusting block (8) is offset from the position of the rack (10). The adjusting gear (9) consists of two interconnected gears, wherein the gear closer to the mounting frame (1) meshes with the rack (10), and the other gear meshes with the tooth groove (11).

7. A printing press roller with an adjustable structure according to claim 5, characterized in that: The distance between the adjusting block (8) and the outer wall of the roller (4) is greater than the upward movement distance of the adjusting frame (5), and the lengths of the adjusting block (8) and the rack (10) are both greater than the upward movement distance of the adjusting frame (5).

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