An adjustable pressure blanket support structure

Abstract

The utility model discloses a kind of adjustable pressure formula rubber roller support structure, belong to the field of printing, including support seat, guide rail group, first roller support frame, second roller support frame and hydraulic cylinder assembly, the first roller support frame is used to connect the rubber roller, the second roller support frame is used to connect plate cylinder and impression cylinder;The guide rail group includes at least two groups of guide rails, at least two groups of the guide rail is vertically arranged on the both sides of the support seat respectively, the first roller support frame is slidably installed on the guide rail group, the first roller support frame is equipped with pivot assembly, the second roller support frame is fixedly connected to the support seat, the output end of the hydraulic cylinder assembly is connected with the first roller support frame, to drive the first roller support frame lifting to adjust the impression position of rubber roller.

Description

Technical Field

[0001] This utility model relates to the printing field, specifically to an adjustable pressure rubber roller support structure. Background Technology

[0002] As a crucial component for image transfer in printing equipment, the rubber roller's support structure plays a key role in print quality and equipment stability. In existing printing equipment, rubber rollers mostly employ fixed or manually adjustable support structures, typically changing roller position or adjusting printing pressure by replacing shims or adjusting screws. This type of structure suffers from slow response and poor accuracy, especially when printing on paper of varying thicknesses, often failing to adapt promptly, leading to unclear image transfer, paper indentations, or equipment wear. Furthermore, existing adjustable pressure structures generally lack effective guiding and limiting mechanisms, posing risks of skewness, impact, and overpressure during roller raising and lowering, affecting stable equipment operation and roller lifespan. Utility Model Content

[0003] One objective of this invention is to provide an adjustable pressure rubber roller support structure, using a high-precision adjustment device to precisely adjust the position of the rubber roller, thereby adjusting its printing pressure.

[0004] Specifically, this utility model discloses an adjustable pressure rubber roller support structure, including a support base, a guide rail assembly, a first roller support frame, a second roller support frame, and a hydraulic cylinder assembly. The first roller support frame is used to connect the rubber roller, and the second roller support frame is used to connect the printing plate cylinder and the impression cylinder. The guide rail assembly includes at least two sets of guide rails, which are respectively vertically arranged on both sides of the support base. The first roller support frame is slidably mounted on the guide rail assembly. The first roller support frame is provided with a rotating shaft assembly. The second roller support frame is fixedly connected to the support base. The output end of the hydraulic cylinder assembly is connected to the first roller support frame, thereby driving the first roller support frame to rise and fall to adjust the impression position of the rubber roller.

[0005] Furthermore, the second roller support includes two parallel plate-shaped members, the bottom ends of which are connected to the support base.

[0006] Furthermore, one long side of the plate-shaped member is close to the guide rail assembly, and the other long side of the plate-shaped member is far away from the guide rail assembly. The long side of the plate-shaped member close to the guide rail assembly is provided with a recess to provide reciprocating motion space for the first roller support frame.

[0007] Furthermore, the top of the guide rail assembly is also provided with a mounting base, the hydraulic cylinder assembly is fixed to the mounting base, the output shaft of the hydraulic cylinder assembly extends vertically downward and is connected to the first roller support frame through a connector.

[0008] Furthermore, the hydraulic cylinder assembly is mounted above any of the guide rails.

[0009] Furthermore, the guide rail is a linear guide rail, located on both sides of the support base and parallel to each other, and the two sides of the first roller support frame are respectively slidably engaged with the guide rail by sliders.

[0010] Furthermore, the rotating shaft assembly of the first roller support frame includes a first fixing mechanism and a second fixing mechanism for connecting the rotating shafts at both ends of the rubber roller, respectively. The first fixing mechanism and the second fixing mechanism each include a first fixing block and a second fixing block, wherein the first fixing block is fixedly connected to the slider, and the second fixing block is detachably connected to the first fixing block.

[0011] Furthermore, the first fixing block is provided with a U-shaped groove, the bottom of which is semi-cylindrical, and the two sides of the U-shaped groove of the first fixing block are tenon structures; the second fixing block is provided with a semi-cylindrical groove, and the second fixing block is provided with a structural groove that cooperates with the tenon structure of the first fixing block. Both the structural groove and the tenon structure are provided with structural holes for connection. The connector passes through the structural groove and the structural holes of the tenon structure to connect the first fixing block and the second fixing block.

[0012] Furthermore, the connector is a stud.

[0013] Furthermore, the guide rail is provided with a limiting sleeve, which is an elastic buffer. The elastic buffer is sleeved on the guide rail to absorb the inertial impact force during the operation of the hydraulic cylinder.

[0014] The elastic buffer is a helical compression spring or a rubber sleeve.

[0015] In this invention, by installing the rubber roller on a liftable first roller support frame and using a hydraulic cylinder assembly to drive it to slide up and down along the guide rail assembly, the contact pressure between the rubber roller and the printing plate cylinder and impression cylinder can be precisely adjusted according to different paper thicknesses, printing precision or ink properties, thereby effectively preventing blurry prints or paper wrinkles caused by uneven pressure, and improving printing quality and equipment compatibility.

[0016] In this invention, the guide rail assembly adopts a linear guide rail structure with parallel arrangement on both sides, combined with a slider sliding connection method, which makes the lifting and lowering movement of the first roller support frame more stable and smooth, reduces the vibration during roller operation, ensures uniform printing pressure distribution, and improves the overall machine's operational balance and service life.

[0017] In this invention, the first roller support frame adopts a detachable double-fixed-block structure, which allows for convenient and quick assembly and disassembly of the rotating shafts at both ends of the rubber roller. This structure eliminates the need for operators to disassemble the entire support assembly when replacing the rubber roller or performing maintenance, significantly shortening equipment maintenance time, improving work efficiency, and avoiding wear on support components caused by repeated disassembly and assembly.

[0018] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a three-dimensional schematic diagram of an adjustable pressure rubber roller support structure in one or more embodiments of the present utility model.

[0021] Figure 2 This is a right-side schematic view of an adjustable pressure rubber roller support structure in one or more embodiments of the present utility model.

[0022] Figure 3 This is a front view schematic diagram of an adjustable pressure rubber roller support structure in one or more embodiments of the present utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the first roller support frame in one or more embodiments of the present utility model.

[0024] In the picture:

[0025] 1-Hydraulic cylinder assembly; 2-Mounting base; 3-Support base; 4-Second roller support frame; 41-Recess; 5-Slider; 6-First roller support frame; 61-First fixing block; 611-Tongue; 612-U-shaped groove; 62-Second fixing block; 621-Structural groove; 622-Semi-cylindrical groove; 7-Guide rail assembly; 8-Column; 91-Printing plate cylinder; 92-Rubber cylinder; 93-Impression cylinder. Detailed Implementation

[0026] In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0027] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Please refer to Figures 1-4 This utility model discloses an adjustable pressure rubber roller support structure, including a support base 3, a guide rail assembly 7, a first roller support frame 6, a second roller support frame 4, and a hydraulic cylinder assembly 1. The first roller support frame 6 is used to connect the rubber roller 92, and the second roller support frame 4 is used to connect the printing plate roller 91 and the impression roller 93. The guide rail assembly 7 includes at least two sets of guide rails, which are respectively vertically arranged on both sides of the support base 3. The first roller support frame 6 is slidably installed on the guide rail assembly 7 and is provided with a rotating shaft assembly. The second roller support frame 4 is fixedly connected to the support base 3. The output end of the hydraulic cylinder assembly 1 is connected to the first roller support frame 6, thereby driving the first roller support frame 6 to rise and fall to adjust the impression position of the rubber roller 92. By mounting the rubber roller 92 on the liftable first roller support frame 6 and driving it to slide up and down along the guide rail assembly 7 using the hydraulic cylinder assembly 1, the contact pressure between the rubber roller 92 and the printing plate roller 91 and the impression roller 93 can be precisely adjusted according to different paper thicknesses, printing precision or ink properties, thereby effectively preventing blurry prints or paper wrinkles caused by uneven pressure, and improving printing quality and equipment compatibility.

[0029] According to one embodiment of this utility model, a first roller support frame 6 is slidably installed between guide rails 7 and is a movable unit for mounting a rubber roller 92. Slider blocks 5 are provided on both sides of the support frame, slidingly engaging with the guide rails on both sides, allowing the first roller support frame 6 to move up and down along the guide rails. Fixing mechanisms are provided at both ends of the support frame to connect the two end shafts of the rubber roller 92, ensuring the roller maintains a stable coaxial posture during lifting and lowering. The sliders 5 also have connecting parts for bearing the thrust of the hydraulic cylinder; the output end of the hydraulic cylinder assembly 1 is connected to these connecting parts, thereby driving the support frame to lift and lower.

[0030] According to one embodiment of this utility model, a second roller support frame 4 is fixedly connected to the middle region of the support base 3 for mounting the printing plate roller 91 and the impression roller 93. This support frame typically consists of two parallel plate-like pieces, the bottom of which is fixedly connected to the support base 3, forming a roller mounting space between the two plates. A recess 41 is provided on the side of the second roller support frame 4 near the guide rail assembly 7, providing a movement channel for the first roller support frame 6, ensuring that the rubber roller 92 does not interfere with other components during lifting and lowering.

[0031] According to one embodiment of this utility model, a mounting base 2 is provided above the guide rail assembly 7, and a column 8 is provided between the support base 3 and the mounting base 2 to help improve the stability of the overall structure. A hydraulic cylinder assembly 1 is installed above any guide rail in the guide rail assembly 7, with its fixed end connected to the mounting base 2 above the guide rail. Its output shaft extends vertically downwards and is connected to the first roller support frame 6 via a connector. Specifically, it can be connected to any slider 5. The extension and retraction of the hydraulic cylinder directly drives the first roller support frame 6 to rise and fall along the guide rail, thereby changing the contact position and pressure between the rubber roller 92, the printing plate roller 91, and the impression roller 93.

[0032] According to one embodiment of this utility model, to ensure the stability of the first roller support frame 6 during the lifting process, the guide rail assemblies 7 maintain strict parallelism, and the slider 5 components are arranged symmetrically to ensure that the support frame is subjected to uniform force during vertical movement, preventing tilting and jamming. The parallel guide rail synchronous guiding structure ensures that the force on both ends of the rubber roller 92 is consistent, thereby maintaining a constant printing pressure during the printing process and ensuring clear printing and accurate registration.

[0033] According to one embodiment of this utility model, the output direction of the hydraulic cylinder assembly 1 is consistent with the lifting direction of the support frame, resulting in a short and vertical force transmission path, which ensures stable and reliable pressure application and prevents lateral deviation. To further improve operational stability, a limiting sleeve and an elastic buffer (not shown in the accompanying drawings) are provided at the bottom end of the guide rail. The limiting sleeve limits the maximum lifting stroke of the support frame to prevent overtravel; the elastic buffer can be in the form of a helical compression spring or a rubber pad, absorbing inertial impact energy when the hydraulic cylinder approaches its end point, reducing mechanical impact, and protecting the guide rail and slider 5 from impact damage.

[0034] According to one embodiment of this utility model, the fixing mechanism of the first roller support frame 6 adopts a double fixing block structure, namely a combination of a first fixing block 61 and a second fixing block 62. The first fixing block 61 is fixedly connected to the end of the support frame and integrally assembled with the slider 5. It has a U-shaped groove 612, the bottom of which is semi-cylindrical for holding the rotating shaft of the rubber roller 92. The second fixing block 62 is detachably connected to the first fixing block 61. It has a semi-cylindrical groove 622 that matches the U-shaped groove 612. When the two are fitted together, they form a complete circular hole structure to clamp the roller shaft. The first fixing block 61 has tenon 611 structures on both sides of the U-shaped groove 612. The second fixing block 62 has a structural groove 621 that matches the tenon 611 structure of the first fixing block 61. Both the structural groove 621 and the tenon 611 structure have structural holes for connection. The two fixing blocks are positioned by the tenon 611 and the structural groove 621 and are connected by studs or pins. This makes the installation and removal of the rubber roller 92 simple and quick, and allows the roller to be replaced or repaired without disassembling the entire support frame.

[0035] According to one embodiment of this utility model, the working state of the hydraulic cylinder can be adjusted by the hydraulic control system during printing operations. When the piston rod of the hydraulic cylinder extends, it pushes the first roller support frame 6 upward, causing the rubber roller 92 to form imprinting contact with the printing plate cylinder 91 and the impression cylinder 93, thereby realizing the printing operation. When the hydraulic cylinder retracts, the support frame drives the rubber roller 92 downward, the rollers separate, and the equipment enters a non-printing state. Because the hydraulic system has adjustable pressure characteristics, the operator can change the contact force of the rubber roller 92 by adjusting the working pressure of the hydraulic system, thereby achieving flexible adjustment for different paper thicknesses or printing requirements.

[0036] During actual operation, the sliding fit between the guide rail assembly 7 and the slider 5 ensures the smoothness of the support frame's lifting movement. The double guide rail structure eliminates the tilting deviation that may occur with unilateral guidance, keeping the rubber roller 92 in a parallel state at all times, thus avoiding localized over- or under-pressing. Through the combination of the limiting sleeve and the elastic buffer, the inertial impact force can be effectively absorbed when the support frame moves to its limit position, making the hydraulic drive process smoother and further extending the service life of the mechanism.

[0037] This utility model adopts a modular design. The guide rail assembly 7, hydraulic cylinder assembly 1, and roller support frame are all assembled on the support base 3 as independent structures, facilitating installation and disassembly. Since the components are fixed together by standard connectors, the rubber roller 92 can be replaced with only partial disassembly during equipment maintenance, greatly reducing downtime. The use of a double-fixed block bearing clamping structure allows operators to quickly complete roller loading and unloading operations while maintaining precise shaft positioning, avoiding positioning deviations caused by repeated adjustments.

[0038] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An adjustable pressure rubber roller support structure, characterized in that, The device includes a support base, a guide rail assembly, a first roller support frame, a second roller support frame, and a hydraulic cylinder assembly. The first roller support frame connects the rubber roller, and the second roller support frame connects the printing plate cylinder and the impression cylinder. The guide rail assembly includes at least two sets of guide rails, which are respectively vertically arranged on both sides of the support base. The first roller support frame is slidably mounted on the guide rail assembly and has a rotating shaft assembly. The second roller support frame is fixedly connected to the support base. The output end of the hydraulic cylinder assembly is connected to the first roller support frame, thereby driving the first roller support frame to rise and fall to adjust the impression position of the rubber roller.

2. The adjustable pressure rubber roller support structure as described in claim 1, characterized in that, The second roller support frame includes two parallel plate-shaped members, the bottom ends of which are connected to the support base.

3. The adjustable pressure rubber roller support structure according to claim 2, characterized in that, One long side of the plate-shaped member is close to the guide rail assembly, and the other long side of the plate-shaped member is away from the guide rail assembly. The long side of the plate-shaped member close to the guide rail assembly is provided with a recess to provide reciprocating motion space for the first roller support frame.

4. The adjustable pressure rubber roller support structure according to claim 1, characterized in that, The top of the guide rail assembly is also provided with a mounting base, the hydraulic cylinder assembly is fixed to the mounting base, the output shaft of the hydraulic cylinder assembly extends vertically downward and is connected to the first roller support frame through a connector.

5. The adjustable pressure rubber roller support structure according to claim 1 or 4, characterized in that, The hydraulic cylinder assembly is mounted above any of the guide rails.

6. The adjustable pressure rubber roller support structure as described in claim 1, characterized in that, The guide rail is a linear guide rail, which is located on both sides of the support base and is parallel to each other. The two sides of the first roller support frame are respectively slidably engaged with the guide rail by sliders.

7. The adjustable pressure rubber roller support structure as described in claim 6, characterized in that, The first roller support frame includes a first fixing mechanism and a second fixing mechanism for connecting the two ends of the rubber roller. The first fixing mechanism and the second fixing mechanism each include a first fixing block and a second fixing block, wherein the first fixing block is fixedly connected to the slider, and the second fixing block is detachably connected to the first fixing block.

8. The adjustable pressure rubber roller support structure as described in claim 7, characterized in that, The first fixing block has a U-shaped groove with a semi-cylindrical bottom and tenon structures on both sides of the U-shaped groove. The second fixing block has a semi-cylindrical groove and a structural groove that matches the tenon structure of the first fixing block. Both the structural groove and the tenon structure have structural holes for connection. The connector passes through the structural groove and the structural holes of the tenon structure to connect the first fixing block and the second fixing block.

9. The adjustable pressure rubber roller support structure as described in claim 8, characterized in that, The connector is a stud.

10. The adjustable pressure rubber roller support structure as described in claim 1, characterized in that, The guide rail is provided with a limiting sleeve, which is an elastic buffer. The elastic buffer is sleeved on the guide rail to absorb the inertial impact force during the operation of the hydraulic cylinder. The elastic buffer is a helical compression spring or a rubber sleeve.

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