Printing plate roller locking device
By designing a printing plate roller anti-loosening device including a base, a bracket, a lower half-circular hoop, an upper half-circular hoop, a clamping mechanism, a restriction mechanism and an extrusion mechanism, the problem of loosening and maintenance of the printing plate roller is solved, and high-quality printing and efficient maintenance are achieved.
Patent Information
- Application Number
- CN202420846922.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The printing plate roller is prone to loosening during use, resulting in a decrease in the quality of the printed product. The traditional thread fastening method is cumbersome and time-consuming during maintenance or replacement.
A printing plate roller anti-loosening device is designed, including a base, a bracket, a lower half-circular hoop, an upper half-circular hoop, a clamping mechanism, a restricting mechanism and an extrusion mechanism. Through the cooperation of these mechanisms, the rotation shaft and the printing roller can be firmly connected to prevent loosening, and the rapid installation and removal of the upper half-circular hoop can be achieved.
It effectively prevents loosening of the printing plate roller, improves the quality of the printed materials, simplifies the maintenance and replacement process of the printing roller, saves operating time, and improves work efficiency.
Smart Images
Figure CN222844988U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-loosening devices, in particular to an anti-loosening device for a printing plate roller. Background Art
[0002] The printing plate roller is an important component of the printing press, used to transfer ink or pigment from the printing plate to the printing material. The printing plate roller is usually made of metal or rubber, with a smooth surface and appropriate hardness to ensure uniform transfer of ink and the quality of printing effect. The printing plate roller is prone to loosening during actual use, so a relaxation device is needed.
[0003] Traditional printing plate rollers are usually connected to the frame of a printing press by means of threads and nuts to ensure the stability and accuracy of the rollers. However, during long-term use, the printing plate rollers may become loose or fall off due to factors such as vibration, which can lead to a decrease in the quality of printed products and even damage to the printing press and potential safety hazards. Moreover, when the printing plate rollers are damaged and need to be repaired or replaced by threaded nuts, the operation is not only cumbersome but also time-consuming, reducing work efficiency. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a printing plate roller anti-loosening device.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A printing plate roller anti-loosening device comprises a base, wherein brackets are fixed at both symmetrical ends of the top of the base, lower semicircular hoops are fixed on the tops of the two brackets, upper semicircular hoops are arranged on the tops of the two lower semicircular hoops, and clamping mechanisms for clamping the upper semicircular hoops are arranged at both ends of the bottoms of the two upper semicircular hoops, a rotating shaft is rotatably connected to the top of the base, limiting mechanisms for limiting the rotating shaft are arranged at both ends of the rotating shaft, a printing roller is sleeved on the side wall of the rotating shaft, and squeezing mechanisms for squeezing the printing roller are arranged at both symmetrical ends of the rotating shaft. During use of the device, the rotating shaft can be firmly connected to the lower semicircular hoop and the upper semicircular hoop through the limiting mechanism and the squeezing mechanism to prevent loosening and improve the quality of printed products. The upper semicircular hoop can be quickly installed and disassembled through the clamping mechanism, which is convenient for repairing or replacing the printing roller, simple to operate, saves a lot of time, and improves work efficiency.
[0007] As a further solution of the utility model, the clamping mechanism includes a through hole and a rectangular block, the top of the lower semicircular hoop is provided with a through hole, the bottom of the upper semicircular hoop is fixed with a rectangular block, and the rectangular block is adapted to the through hole, the symmetrical two side walls of the rectangular block are provided with grooves, the inner side walls of the two grooves are rotatably connected with connecting rods, the side walls of the two connecting rods are sleeved with clamping blocks, the inner side walls of the two grooves are fixed with second springs, and one end of the two second springs is respectively fixed to the side walls of the two clamping blocks, when the rectangular block is inside the through hole, the two clamping blocks are squeezed and start to compress the two second springs respectively, so that the two second springs are in In the compressed state, the two connecting rods rotate, so that the two clamping blocks are pressed into the two grooves respectively. When the clamping blocks are no longer in contact with the through holes, the two second springs in the compressed state drive the two clamping blocks to rotate in the opposite direction. At this time, the tops of the two clamping blocks are in contact with the two ends of the bottoms of the two lower semicircular hoops respectively. At this time, the lower semicircular hoop and the upper semicircular hoop are tightly fixed. When the rotating shaft and the printing roller need to be replaced or repaired, the two clamping blocks are squeezed into the two grooves respectively, the lower semicircular hoop and the upper semicircular hoop can be separated, and the rotating shaft and the printing roller can be removed. The operation is convenient, much time is saved, and the work efficiency is improved.
[0008] As a further solution of the utility model, the limiting mechanism includes a second card slot and a first card slot, the inner side wall of the lower semicircular hoop is provided with a first card slot, the inner side wall of the upper semicircular hoop is provided with a second card slot, one end of the rotating shaft is sleeved with a third connecting block, and the third connecting block is adapted to both the second card slot and the first card slot, the third connecting block is respectively connected to the second card slot and the first card slot, when the lower semicircular hoop and the upper semicircular hoop are tightly fixed, the third connecting block is restricted from moving left and right, thereby preventing the rotating shaft from loosening and improving the quality of the printed product.
[0009] As a further solution of the utility model, the extrusion mechanism includes a first connecting block and a second connecting block, one end of the rotating shaft is rotatably connected to the first connecting block, the side wall of the rotating shaft is sleeved with a first spring, and the side wall of the rotating shaft is sleeved with a second connecting block, one end of the first spring is fixed to the side wall of the first connecting block, and the other end of the first spring is fixed to the side wall of the second connecting block. When the device is installed, the two second connecting blocks respectively squeeze the two first springs, so that the two first springs are in a compressed state. Under the reaction of the first spring in the compressed state, the two first connecting blocks are driven to squeeze the two ends of the printing roller respectively, thereby further preventing the rotating shaft from loosening.
[0010] The beneficial effects of the utility model are:
[0011] 1. During use of the device, the limiting mechanism and the squeezing mechanism can firmly connect the rotating shaft to the lower semicircular hoop and the upper semicircular hoop to prevent loosening and improve the quality of printed products.
[0012] 2. The upper semicircular hoop can be quickly installed and disassembled through the clamping mechanism, which is convenient for repairing or replacing the printing roller. The operation is simple, saves a lot of time and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a structural schematic diagram of a printing plate roller anti-loosening device proposed by the utility model;
[0014] Figure 2 This is an exploded schematic diagram of a rotating shaft, a printing roller, a first connecting block, a second connecting block and a first spring of a printing plate roller anti-loosening device proposed by the utility model;
[0015] Figure 3 It is an exploded schematic diagram of a lower semicircular hoop, an upper semicircular hoop, a second clamping groove and a first clamping groove of a printing plate roller anti-loosening device proposed by the utility model;
[0016] Figure 4 The utility model provides a schematic cross-sectional diagram of a rectangular block and a groove of a printing plate roller anti-loosening device.
[0017] In the figure: 1, base; 2, bracket; 3, lower semicircular hoop; 4, upper semicircular hoop; 5, rotating shaft; 6, printing roller; 7, first connecting block; 8, second connecting block; 9, first spring; 10, third connecting block; 11, second slot; 12, first slot; 13, through hole; 14, rectangular block; 15, groove; 16, connecting rod; 17, second spring; 18, block. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0019] Reference Figure 1-Figure 4The top of the two lower semicircular hoops 3 are provided with upper semicircular hoops 4, and the bottom two ends of the two upper semicircular hoops 4 are provided with clamping mechanisms for clamping the upper semicircular hoops 4. A rotating shaft 5 is rotatably connected to the top of the base 1, and both ends of the rotating shaft 5 are provided with limiting mechanisms for limiting the rotating shaft 5. A printing roller 6 is sleeved on the side wall of the rotating shaft 5, and extrusion mechanisms for squeezing the printing roller 6 are symmetrically provided at both ends of the rotating shaft 5. During use, the rotating shaft 5 can be firmly connected to the lower semicircular hoop 3 and the upper semicircular hoop 4 through the limiting mechanism and the squeezing mechanism to prevent loosening and improve the quality of printed products. The upper semicircular hoop 4 can be quickly installed and disassembled through the clamping mechanism, which is convenient for repairing or replacing the printing roller 6. The operation is simple, much time is saved, and work efficiency is improved.
[0020] Reference Figure 3 and Figure 4 In a preferred embodiment, the clamping mechanism includes a through hole 13 and a rectangular block 14, the through hole 13 is opened on the top of the lower semicircular hoop 3, and the rectangular block 14 is fixed on the bottom of the upper semicircular hoop 4, and the rectangular block 14 is adapted to the through hole 13, and grooves 15 are opened on the symmetrical side walls of the rectangular block 14, and the inner walls of the two grooves 15 are rotatably connected with connecting rods 16, and the side walls of the two connecting rods 16 are sleeved with clamping blocks 18, and the inner walls of the two grooves 15 are fixed with second springs 17, and one end of the two second springs 17 is respectively fixed to the side walls of the two clamping blocks 18, when the rectangular block 14 is inside the through hole 13, the two clamping blocks 18 are squeezed and start to compress the two second springs 17 respectively, so that the two second springs 17 are in In the compressed state, the two connecting rods 16 rotate, so that the two clamping blocks 18 are pressed into the two grooves 15 respectively. When the clamping blocks 18 are no longer in contact with the through holes 13, the two second springs 17 in the compressed state drive the two clamping blocks 18 to rotate in the opposite direction. At this time, the tops of the two clamping blocks 18 are in contact with the two bottom ends of the two lower semicircular hoops 3 respectively. At this time, the lower semicircular hoop 3 and the upper semicircular hoop 4 are tightly fixed. When the rotating shaft 5 and the printing roller 6 need to be replaced or repaired, the two clamping blocks 18 are squeezed into the two grooves 15 respectively, the lower semicircular hoop 3 and the upper semicircular hoop 4 can be separated, and the rotating shaft 5 and the printing roller 6 can be removed. The operation is convenient, much time is saved, and the work efficiency is improved.
[0021] Reference Figure 2 and Figure 3In a preferred embodiment, the limiting mechanism includes a second card slot 11 and a first card slot 12, the inner wall of the lower semicircular hoop 3 is provided with a first card slot 12, the inner wall of the upper semicircular hoop 4 is provided with a second card slot 11, and one end of the rotating shaft 5 is sleeved with a third connecting block 10, and the third connecting block 10 is adapted to both the second card slot 11 and the first card slot 12, and the third connecting block 10 is respectively connected to the second card slot 11 and the first card slot 12. When the lower semicircular hoop 3 and the upper semicircular hoop 4 are tightly fixed, the third connecting block 10 is restricted from moving left and right, thereby preventing the rotating shaft 5 from loosening and improving the quality of the printed matter.
[0022] Reference Figure 1 and Figure 2 In a preferred embodiment, the extrusion mechanism includes a first connecting block 7 and a second connecting block 8, one end of the rotating shaft 5 is rotatably connected to the first connecting block 7, the side wall of the rotating shaft 5 is sleeved with a first spring 9, the side wall of the rotating shaft 5 is sleeved with a second connecting block 8, one end of the first spring 9 is fixed to the side wall of the first connecting block 7, and the other end of the first spring 9 is fixed to the side wall of the second connecting block 8. When the device is installed, the two second connecting blocks 8 respectively squeeze the two first springs 9, so that the two first springs 9 are in a compressed state. Under the reaction of the first spring 9 in the compressed state, the two first connecting blocks 7 are driven to squeeze the two ends of the printing roller 6 respectively, further preventing the rotating shaft 5 from loosening.
[0023] Working principle of this embodiment: During use of this device, when installing the rotating shaft 5 and the printing roller 6, the third connecting block 10 is pre-engaged on the side wall of the first slot 12, and the upper semicircular hoop 4 is placed on the top of the lower semicircular hoop 3. At this time, the lower semicircular hoop 3 and the upper semicircular hoop 4 are in an overlapping state, so that the second slot 11, the first slot 12 and the third connecting block 10 are tightly fitted to prevent the rotating shaft 5 from loosening. At this time, the two second connecting blocks 8 respectively squeeze the two first springs 9, so that the two first springs 9 are in a compressed state. Under the reaction of the compressed first springs 9, the two first connecting blocks 7 are driven to squeeze the two ends of the printing roller 6 respectively, further preventing the rotating shaft 5 from loosening and improving the quality of the printed product. When the lower semicircular hoop 3 and the upper semicircular hoop 4 are tightly fitted, the two rectangular blocks 14 respectively enter the two through holes 13, and the rectangular blocks 1 When the two clamping blocks 18 are inside the through hole 13, they are squeezed and start to compress the two second springs 17 respectively, so that the two second springs 17 are in a compressed state. At this time, the two connecting rods 16 rotate, so that the two clamping blocks 18 are pressed into the two grooves 15 respectively. When the clamping blocks 18 are no longer in contact with the through hole 13, under the reaction of the two compressed second springs 17, the two clamping blocks 18 are driven to rotate in the opposite direction. At this time, the tops of the two clamping blocks 18 are in contact with the two bottom ends of the two lower semicircular hoops 3 respectively. At this time, the lower semicircular hoop 3 and the upper semicircular hoop 4 are tightly fixed. When the rotating shaft 5 and the printing roller 6 need to be replaced or repaired, the two clamping blocks 18 are squeezed into the two grooves 15 respectively, the lower semicircular hoop 3 and the upper semicircular hoop 4 can be separated, and the rotating shaft 5 and the printing roller 6 can be removed. The operation is convenient, saving much time and improving work efficiency.
[0024] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0027] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A printing plate roller anti-loosening device, comprising a base (1), characterized in that: The base (1) is symmetrically fixed with brackets (2) at both ends of the top, the two brackets (2) are fixed with lower semicircular hoops (3) at the top, the two lower semicircular hoops (3) are provided with upper semicircular hoops (4) at the top, the two upper semicircular hoops (4) are provided with clamping mechanisms for clamping the upper semicircular hoops (4) at both ends of the bottom, the base (1) is rotatably connected with a rotating shaft (5), the two ends of the rotating shaft (5) are provided with limiting mechanisms for limiting the rotating shaft (5), the side wall of the rotating shaft (5) is sleeved with a printing roller (6), and the two symmetrical ends of the rotating shaft (5) are provided with squeezing mechanisms for squeezing the printing roller (6).
2. The printing plate roller anti-loosening device according to claim 1, characterized in that: The clamping mechanism comprises a through hole (13) and a rectangular block (14); the through hole (13) is opened on the top of the lower semicircular hoop (3); the rectangular block (14) is fixed on the bottom of the upper semicircular hoop (4); and the rectangular block (14) and the through hole (13) are adapted to each other.
3. The printing plate roller anti-loosening device according to claim 2, characterized in that: The rectangular block (14) is provided with grooves (15) on both symmetrical side walls, the inner walls of the two grooves (15) are rotatably connected with connecting rods (16), the side walls of the two connecting rods (16) are sleeved with clamping blocks (18), the inner walls of the two grooves (15) are fixed with second springs (17), and one end of the two second springs (17) is respectively fixed to the side walls of the two clamping blocks (18).
4. The printing plate roller anti-loosening device according to claim 1, characterized in that: The limiting mechanism comprises a second clamping groove (11) and a first clamping groove (12); the inner wall of the lower semicircular hoop (3) is provided with the first clamping groove (12); the inner wall of the upper semicircular hoop (4) is provided with the second clamping groove (11); one end of the rotating shaft (5) is sleeved with a third connecting block (10), and the third connecting block (10) is adapted to both the second clamping groove (11) and the first clamping groove (12).
5. The printing plate roller anti-loosening device according to claim 1, characterized in that: The extrusion mechanism comprises a first connecting block (7) and a second connecting block (8); one end of the rotating shaft (5) is rotatably connected to the first connecting block (7); a first spring (9) is sleeved on the side wall of the rotating shaft (5); the second connecting block (8) is sleeved on the side wall of the rotating shaft (5); one end of the first spring (9) is fixed to the side wall of the first connecting block (7); and the other end of the first spring (9) is fixed to the side wall of the second connecting block (8).