Durable environment-friendly chromium-plated plate roller

Abstract

The durable environment-friendly chromium-plated plate roller comprises a roller body and center shafts installed on the two sides of the roller body, the ends, close to the roller body, of the center shafts are fixedly connected with outer protection plates, the sides, close to the roller body, of the outer protection plates are fixedly provided with positioning plates, and connecting assemblies are installed between the positioning plates and the outer protection plates. Assembling grooves are formed in the left and right ends of the roller body; the connecting assembly comprises a guide frame fixedly connected to the outer side of the positioning plate, and a plurality of linkage rods are slidably connected into the guide frame. The utility model has the beneficial effects that: through the design, not only is the mounting and the dismounting convenient, but also the single-point stress of the traditional key slot is converted into surface contact load distribution by utilizing a plurality of groups of locking blocks after the mounting and the fixing, so that the local plastic deformation and the microcrack propagation are effectively inhibited, the abrasion at the joint is effectively reduced, the printing effect is ensured, and the printing quality is improved. And meanwhile, the environment-friendly property and the fatigue resistance are achieved, and the printing precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of chrome-plated printing roller technology, specifically to a durable and environmentally friendly chrome-plated printing roller. Background Technology

[0002] Chrome-plated printing rollers are industrial components with a chrome layer applied to the surface of a metal roller through electroplating. They are suitable for various film production lines, paper production lines, large-scale printing equipment, and laminating equipment. These components are widely used in flexographic printing machines, coating equipment, and plastic embossing production lines, and are also core supporting components in machinery and equipment in the paper, textile, and leather industries.

[0003] In the prior art, in order to reduce production costs, the chrome-plated printing roller is hollow, and the central shaft is generally detachable from the roller body. By setting keyways at both ends of the central shaft, the central shaft is connected to both ends of the roller body through the keyways. Torque is transmitted through the key, and bolts are used to tighten and prevent axial displacement. Since the roller body needs to be disassembled frequently, the keyways are prone to plastic deformation under long-term stress, which aggravates the wear gap and ultimately leads to transmission vibration and eccentricity error. As a result, the printing of the chrome-plated printing roller is inaccurate, affecting the printing effect. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention designs a durable and environmentally friendly chrome-plated printing roller, which solves the technical problem of frequent disassembly of the chrome-plated printing roller leading to increased wear clearance at the connection with the central shaft, ultimately resulting in transmission vibration and eccentricity errors. This causes printing errors on the chrome-plated printing roller, affecting the printing effect.

[0005] This utility model provides the following technical solution: a durable and environmentally friendly chrome-plated roller, comprising: a roller body and a central shaft installed on both sides of the roller body, an outer protective plate fixedly connected to one end of the central shaft near the roller body, a positioning plate fixedly installed on one side of the outer protective plate near the roller body, a connecting component installed between the positioning plate and the outer protective plate, and assembly grooves opened at both ends of the roller body.

[0006] The connecting assembly includes a guide frame fixedly connected to the outside of the positioning plate. Multiple sets of linkage rods are slidably connected inside the guide frame. Each set of linkage rods has a locking block fixedly connected to one end on the outside of the guide frame. Locking slots are provided on the circumferential wall of the assembly slot at positions corresponding to the multiple sets of locking blocks. A transmission gear is rotatably connected to the outside of the guide frame. A drive gear is rotatably connected to the top of the guide frame, and the drive gear meshes with the transmission gear. The opposite ends of the multiple sets of linkage rods are slidably connected to the inside of the transmission gear through guide columns. An operating shaft is fixedly connected to the center of the drive gear.

[0007] As a preferred embodiment of this utility model, the interior of the outer protective plate is fixedly connected to the positioning plate by multiple sets of mounting bolts, and movable grooves are provided between the outer protective plate and the positioning plate and on the outside of the multiple sets of locking blocks.

[0008] As a preferred embodiment of this utility model, multiple sets of guide posts are slidably connected to the outer side of the guide frame through sliding grooves, and multiple sets of guide posts are slidably connected to the inside of the transmission gear through guide grooves.

[0009] As a preferred embodiment of this utility model, an operating handle is fixedly installed at one end of the operating shaft located on the outer side of the outer protective plate. A fixed sleeve is fixedly connected to the outer side of the outer protective plate and located on the outer side of the operating shaft. The operating shaft is rotatably connected to the outer protective plate and the fixed sleeve. A locking bolt is threaded inside the fixed sleeve, and a locking hole is provided on the outer side of the operating shaft at a position corresponding to the locking bolt.

[0010] As a preferred embodiment of this utility model, the base material of the roller body is either high carbon steel or alloy steel, and the surface of the roller body is provided with a composite chromium plating layer.

[0011] As a preferred embodiment of this utility model, the surface of the composite chromium plating layer is treated with ultra-mirror polishing, the composite chromium plating layer is prepared by trivalent chromium electroplating process, and the surface of the composite chromium plating layer is coated with a nano-lubricating coating.

[0012] As a preferred embodiment of this utility model, a positioning groove is provided at the center of the assembly groove, and a positioning block is fixedly connected to the inner side of the positioning plate at a position corresponding to the positioning groove, and the positioning block fits into the interior of the positioning groove.

[0013] The beneficial effects of this utility model are:

[0014] 1. In this utility model, through the cooperative design of the roller body, central shaft, outer protective plate, positioning plate, connecting components and assembly groove, when installing the central shaft and roller body, after aligning the positioning block on the inner side of the positioning plate with the positioning groove, the positioning plate is inserted into the inside of the assembly groove. Then, the operating shaft is rotated to drive the drive gear to rotate. Under the transmission of the transmission gear, multiple sets of guide columns slide synchronously inside the transmission gear, thereby synchronously driving multiple sets of linkage rods to extend out inside the guide frame until multiple sets of locking blocks are inserted into the locking groove, thus installing and fixing the central shaft and roller body. When disassembling the central shaft and roller body, it is only necessary to reverse the operating shaft to synchronously drive multiple sets of locking blocks to retract and release the fixation. This not only facilitates installation and disassembly, but also, after installation and fixation, the multiple sets of locking blocks transform the traditional keyway single-point force distribution into surface contact load distribution, effectively suppressing local plastic deformation and micro-crack propagation, thereby effectively reducing wear at the connection and ensuring the printing effect.

[0015] 2. In this utility model, through the design of the roller body, the roller body made of high carbon steel / alloy steel substrate provides high strength support, the composite chromium plating layer adopts trivalent chromium electroplating process to form a micro-cracked chromium layer, which has both environmental protection and fatigue resistance, the surface ultra-mirror polishing treatment ensures printing accuracy, and the superimposed nano lubricating coating further reduces the coefficient of friction, further improving printing accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the assembly groove structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the outer protective plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the guide frame structure of this utility model;

[0021] In the diagram: 1. Roller body; 2. Central shaft; 3. Outer protective plate; 4. Positioning plate; 5. Connecting assembly; 501. Guide frame; 502. Linkage rod; 503. Locking block; 504. Locking groove; 505. Transmission gear; 506. Drive gear; 507. Guide column; 508. Operating shaft; 509. Mounting bolt; 510. Movable groove; 511. Slide groove; 512. Guide groove; 513. Operating handle; 514. Fixed sleeve; 515. Locking bolt; 6. Assembly groove; 601. Positioning groove. Detailed Implementation

[0022] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Example:

[0024] like Figures 1 to 5 As shown, a durable and environmentally friendly chrome-plated roller includes: a roller body 1 and a central shaft 2 installed on both sides of the roller body 1. An outer protective plate 3 is fixedly connected to one end of the central shaft 2 near the roller body 1. A positioning plate 4 is fixedly installed on one side of the outer protective plate 3 near the roller body 1. A connecting component 5 is installed between the positioning plate 4 and the outer protective plate 3. Assembly grooves 6 are provided at both the left and right ends of the roller body 1.

[0025] In this embodiment, the connecting assembly 5 includes a guide frame 501 fixedly connected to the outside of the positioning plate 4. Multiple sets of linkage rods 502 are slidably connected inside the guide frame 501. Locking blocks 503 are fixedly connected to one end of each linkage rod 502 located outside the guide frame 501. Locking slots 504 are provided on the circumferential wall of the assembly groove 6 at positions corresponding to the locking blocks 503. A transmission gear 505 is rotatably connected to the outside of the guide frame 501. A drive gear 506 is rotatably connected to the top of the guide frame 501, and the drive gear 506 meshes with the transmission gear 505. The opposite ends of the multiple linkage rods 502 are slidably connected to the inside of the transmission gear 505 via guide posts 507. An operating shaft 508 is fixedly connected to the center of the drive gear 506. When installing the central shaft 2 and the roller body 1, the positioning plate 4 is first aligned with the assembly... Insert the slot 6, then rotate the operating shaft 508 to drive the drive gear 506 to rotate. Under the transmission of the transmission gear 505, multiple sets of guide columns 507 slide synchronously inside the transmission gear 505, thereby synchronously driving multiple sets of linkage rods 502 to extend inside the guide frame 501 until multiple sets of locking blocks 503 are inserted into the locking groove 504. This allows for the installation and fixation between the central shaft 2 and the roller body 1. When disassembling the central shaft 2 and the roller body 1, simply reverse the operating shaft 508 to synchronously drive the multiple sets of locking blocks 503 to retract and release the fixation. This not only facilitates installation and disassembly, but also, after installation and fixation, the multiple sets of locking blocks 503 transform the traditional single-point force of the keyway into a surface contact load distribution, effectively suppressing local plastic deformation and micro-crack propagation, thereby effectively reducing wear at the connection and ensuring the printing effect.

[0026] In this embodiment, the outer protective plate 3 is fixedly connected to the positioning plate 4 by multiple sets of mounting bolts 509. Movable grooves 510 are provided between the outer protective plate 3 and the positioning plate 4 and on the outside of the multiple sets of locking blocks 503. The outer protective plate 3 is installed and fixed on the outside of the positioning plate 4 by multiple sets of mounting bolts 509. This not only connects the central shaft 2 and the positioning plate 4, but also protects the inner connecting component 5. When the multiple sets of locking blocks 503 are operated to extend and retract to install and fix the central shaft 2 and the roller body 1, the multiple sets of locking blocks 503 move stably inside the movable grooves 510.

[0027] In this embodiment, multiple sets of guide posts 507 are slidably connected to the outer side of the guide frame 501 through the slide groove 511, and multiple sets of guide posts 507 are slidably connected to the inside of the transmission gear 505 through the guide groove 512. When the drive gear 506 is rotated by the operating shaft 508, the transmission gear 505 is rotated, and the guide post 507 is guided to slide inside the guide groove 512. At the same time, the guide post 507 slides inside the slide groove 511, thereby synchronously driving multiple sets of linkage rods 502 to extend and retract inside the guide frame 501, thereby moving the locking block 503.

[0028] In this embodiment, an operating handle 513 is fixedly installed at one end of the operating shaft 508 located outside the outer protective plate 3. A fixing sleeve 514 is fixedly connected to the outside of the outer protective plate 3 and outside the operating shaft 508. The operating shaft 508 is rotatably connected to the outer protective plate 3 and the fixing sleeve 514. A locking bolt 515 is threaded inside the fixing sleeve 514. A locking hole is provided on the outside of the operating shaft 508 at a position corresponding to the locking bolt 515. The operating handle 513 is fixed to the outside of the operating shaft 508 by screws. The operating handle 513 facilitates the rotation of the operating shaft 508. After the central shaft 2 and the roller body 1 are installed and fixed, the locking hole on the outside of the operating shaft 508 is rotated to the bottom end of the locking bolt 515. Then, the locking bolt 515 is rotated and screwed into the locking hole, thereby fixing the operating shaft 508 to prevent it from rotating, thus ensuring the firmness of the installation and fixing between the central shaft 2 and the roller body 1.

[0029] In this embodiment, the base material of the roller body 1 is either high-carbon steel or alloy steel. The surface of the roller body 1 is provided with a composite chromium plating layer. The surface of the composite chromium plating layer is treated with ultra-mirror polishing. The composite chromium plating layer is prepared by a trivalent chromium electroplating process. The surface of the composite chromium plating layer is coated with a nano-lubricating coating. The roller body 1 made of high-carbon steel / alloy steel base material provides high-strength support. The composite chromium plating layer is formed by a trivalent chromium electroplating process to form a micro-cracked chromium layer, which is both environmentally friendly and fatigue-resistant. The ultra-mirror polishing treatment ensures printing accuracy. The superimposed nano-lubricating coating further reduces the coefficient of friction and further improves printing accuracy.

[0030] In this embodiment, a positioning groove 601 is provided at the center of the assembly groove 6. A positioning block is fixedly connected to the inner side of the positioning plate 4 at a position corresponding to the positioning groove 601, and the positioning block fits into the interior of the positioning groove 601. When installing the central shaft 2 and the roller body 1, the positioning block on the inner side of the positioning plate 4 is aligned with the positioning groove 601, and then the positioning plate 4 is inserted into the interior of the assembly groove 6. The modular installation method further improves the convenience of installation and disassembly.

[0031] Implementation plan: When installing the central shaft 2 and the roller body 1, align the positioning block inside the positioning plate 4 with the positioning groove 601, insert the positioning plate 4 into the assembly groove 6, and then rotate the operating shaft 508 to drive the drive gear 506 to rotate. Under the transmission of the transmission gear 505, multiple sets of guide columns 507 slide synchronously inside the transmission gear 505, thereby synchronously driving multiple sets of linkage rods 502 to extend out inside the guide frame 501 until multiple sets of locking blocks 503 are inserted into the locking groove 504, thus fixing the central shaft 2 and the roller body 1. When disassembling the central shaft 2 and the roller body 1, simply reverse the operating shaft 508 to synchronously drive the multiple sets of locking blocks 503 to retract. In addition to fixation, the roller body 1, made of high-carbon steel / alloy steel substrate, provides high-strength support. The composite chromium plating layer uses trivalent chromium electroplating process to form a micro-cracked chromium layer, which is both environmentally friendly and fatigue-resistant. The ultra-mirror polishing treatment of the surface ensures printing accuracy, and the superimposed nano-lubricating coating further reduces the coefficient of friction, further improving printing accuracy. The entire operation process is simple and convenient. This utility model is designed to facilitate installation and disassembly. After installation and fixation, multiple sets of locking blocks 503 transform the traditional single-point force of the keyway into a surface contact load distribution, effectively suppressing local plastic deformation and micro-crack propagation, thereby effectively reducing wear at the connection and ensuring the printing effect. At the same time, it is both environmentally friendly and fatigue-resistant, improving printing accuracy.

[0032] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A durable, environmentally friendly chrome plated plate roll, characterized by, The utility model relates to a kind of roll body and the center shaft installed in the both sides of roll body, the center shaft is fixedly connected with outer guard plate close to one end of roll body, outer guard plate is fixedly installed with positioning plate close to one side of roll body, connecting assembly is installed between positioning plate and outer guard plate, and assembly slot is set up in the left and right ends of roll body. Connecting assembly includes guiding frame fixedly connected to the outer side of positioning plate, a plurality of linkage rods are slidably connected inside the guiding frame, one end of the plurality of linkage rods located outside the guiding frame is fixedly connected with locking block, locking slot is set up in the circumferential wall of assembly slot at the position corresponding to the plurality of locking blocks, transmission gear is rotatably connected to the outside of guiding frame, driving gear is rotatably connected to the top end of guiding frame, and the driving gear is engaged with the transmission gear, one end of the plurality of linkage rods opposite is slidably connected with the inside of transmission gear through guide column, and operation shaft is fixedly connected at the center of driving gear. The inside of outer guard plate is fixedly connected with positioning plate by a plurality of mounting bolts, and movable slot is set up between outer guard plate and positioning plate and located outside the plurality of locking blocks.

2. The environment-friendly and durable chrome plated roll according to claim 1, wherein, A plurality of guide columns are slidably connected with the outside of guiding frame through sliding groove, and a plurality of guide columns are slidably connected with the inside of transmission gear through guide slot.

3. The durable and environmentally friendly chrome-plating roller according to claim 1, characterized in that, One end of operation shaft located outside outer guard plate is fixedly installed with operating handle, and outer guard plate is fixedly connected with fixed sleeve outside and located outside operation shaft, and operation shaft is rotatably connected with outer guard plate and fixed sleeve, locking bolt is threadedly connected in the inside of fixed sleeve, and locking hole is set up in the position corresponding to locking bolt outside operation shaft.

4. The durable, environmentally friendly chrome plated roll of claim 1, wherein, The base material of roll body is one of high-carbon steel or alloy steel, and the surface of roll body is provided with composite chromium plating layer.

5. The durable, environmentally friendly chrome plated roll of claim 1, wherein, The surface of composite chromium plating layer is subjected to super-mirror polishing treatment, the composite chromium plating layer is prepared by trivalent chromium plating process, and the surface of composite chromium plating layer is coated with nano-lubricating coating.

6. The durable, environmentally friendly chrome plated roll as claimed in claim 5, wherein, Positioning groove is set up in the center of assembly slot, positioning block is fixedly connected with positioning groove corresponding to the inside of positioning plate, and positioning block is matched with the inside of positioning groove.

7. The durable, environmentally friendly chrome plated roll of claim 1, wherein, ​

Images