Deviation rectifying device for digital color printing

Abstract

The utility model belongs to the technical field of digital color printing equipment, and particularly relates to a deviation rectifying device for digital color printing, which comprises sleeve units, a plurality of sleeve units are spliced to form a complete sleeve, a movable groove is arranged between every two adjacent sleeve units, and an extension plate is arranged on the surface of each sleeve unit and positioned on one side of the movable groove. A set of inclined first sliding grooves are formed in the two sides, close to each other, of the two opposite extending plates, a clamping jaw is movably connected into each movable groove, a set of sliding pins are arranged on the two sides of each clamping jaw, and each set of sliding pins is slidably connected with the corresponding first sliding grooves and can stretch out and draw back at the same time to adjust the clamping diameter. Therefore, the clamping and mounting requirements of feeding rollers with different diameters can be met, it is guaranteed that the feeding rollers can be effectively prevented from being in an eccentric state, the range of an abutting-pulling area formed by the abutting-pulling pieces is made to change in a self-adaptive mode along with the diameter of the feeding rollers, then a raw material belt can be stably abutted, and the service life of the raw material belt is prolonged. And the problem that the color printing raw material belt is stuck is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of digital color printing equipment, in particular to a deviation correction device for digital color printing. Background Art

[0002] The guide belt digital color printer has broken through the bottleneck of digital printing technology and achieved the true meaning of printing from one sheet, without the need for plate making, and completing full-color images in one go. The extremely low printing cost and high-quality printing effect are more economical and convenient than traditional printing systems. The minimal system investment, digital operation method and limited space occupation make the system have a greater market prospect. It is the best supplement to traditional printing and a replacement product for traditional printing presses. The guide belt is a key component of the entire digital color printer. Whether the guide belt is stable during operation determines the quality of printing. However, when the guide belt is driven by the roller, it often deviates or even gets stuck, seriously affecting the stability of the machine and reducing the machine's working efficiency.

[0003] Chinese patent application number CN212292196U discloses a web-correcting device for digital color printing, comprising vacuum-packed ink, a nozzle ink supply system, a printing assembly, a nozzle assembly, a tape guide frame, a first guide roller, and a second guide roller. A feed roller is fixedly connected below the first guide roller, and a web-correcting assembly is movably connected to the surface of the feed roller. A take-up roller is fixedly connected below the second guide roller, and a drying assembly is provided on top of the tape guide frame. Turning a knob drives a stud to push an annular clamping plate to squeeze and secure the feed roller, facilitating the adjustment and installation of feed rollers of different sizes and thicknesses. This prevents the color printing raw material tape from loosening during use due to length differences with the feed roller, which could cause the color printing raw material tape to become stuck. This improves the operating stability and efficiency of the color printing machine.

[0004] However, the above has the following shortcomings:

[0005] In actual processing scenarios, the above patent clamps the feed roller by screwing two studs separately and pushing two annular clamping plates. However, in this way, when the operator screws the two studs separately, the screwing distance is easily asymmetric, resulting in the axis of the feed roller and the axis of the positioning sleeve being offset after clamping, and eccentricity occurring when the feed roller rotates, affecting the stability of the feeding process.

[0006] The above patent can adapt to feed rollers of different diameters for clamping and fixing, but the above-mentioned pull-pull shell cannot change the diameter, resulting in that when installing a feed roller with a smaller diameter, the pull-pull shell is difficult to effectively resist the color printing raw material belt, thereby being unable to avoid the problem of the color printing raw material belt getting stuck. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the technical problem solved by the present invention is that, by arranging a plurality of synchronously moving clamping jaws, the clamping diameter can be adjusted telescopically at the same time, thereby being able to adapt to the clamping and installation requirements of feed rollers of different diameters, while ensuring that the feed roller can effectively avoid an eccentric state of the feed roller. In the process of adjusting the clamping jaws for clamping, the positions of the various screws change together, so that the various pull-pull pieces expand or gather, so that the range of the pull-pull area formed by the various pull-pull pieces adaptively changes with the diameter of the feed roller, thereby being able to stably resist the color printing raw material belt, and effectively avoiding the problem of the color printing raw material belt being stuck.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a correction device for digital color printing, comprising a sleeve unit, a plurality of the sleeve units are assembled to form a complete sleeve, a movable groove is provided between every two adjacent sleeve units, an extension plate is provided on the surface of each sleeve unit at one side of the movable groove, a group of first sliding grooves are provided on the two sides close to each other between the two opposite extension plates, a clamping jaw is movably connected in each of the movable grooves, a group of sliding pins are provided on both sides of each clamping jaw, and each group of the sliding pins is slidably connected to the corresponding first sliding groove.

[0009] Furthermore, a seat plate is provided on one side of the sleeve unit, and a group of pull rods are provided on one side of the seat plate at the corresponding position of each clamping jaw. Each group of pull rods is slidingly connected to the clamping jaw. A fastening bolt is rotatably connected at the corresponding position of each sleeve unit in the seat plate, and each fastening bolt is threadedly connected to the corresponding sleeve unit.

[0010] Furthermore, each of the clamping jaws is slidably connected to a screw at one end close to the inner side of the sleeve unit, and a second sliding groove is provided on each base plate at a corresponding position of each screw. One end of each screw is slidably connected to the corresponding second sliding groove, and one end of each screw away from the base plate is fixedly connected to a pull-out plate, and the pull-out plates are staggered and slide relative to each other.

[0011] Furthermore, a thread is provided on the surface of each screw, and a first nut and a second nut are respectively threadedly connected at two sides of the base plate on each screw.

[0012] Furthermore, a connecting shaft is provided on the outer side of the seat plate, and the connecting shaft is concentrically arranged with the seat plate. The seat plate and the connecting shaft are fixedly connected by a first mounting nut. A plurality of ribs are evenly distributed on the outer side of one end of the connecting shaft close to the seat plate. A slot is provided on the seat plate at a corresponding position of each rib, and each rib is inserted into the corresponding slot at its end.

[0013] Furthermore, a toothed surface is provided on one end surface of each clamping jaw located on the inner side of the sleeve unit, and the sleeve units are fixedly connected by multiple sets of second mounting nuts.

[0014] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0015] By setting up multiple synchronously moving clamping jaws, the clamping diameter can be adjusted at the same time, thereby being able to adapt to the clamping and installation requirements of feed rollers of different diameters while ensuring that the feed roller can effectively avoid eccentricity.

[0016] In the process of adjusting the clamping jaws for clamping, the positions of the screws change together, causing the pull-pull pieces to expand or gather together, so that the range of the pull-pull area formed by each pull-pull piece changes adaptively with the diameter of the feed roller, thereby being able to stably resist the color printing raw material belt and effectively avoid the problem of the color printing raw material belt being stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0018] Figure 2 It is a side view of the present utility model.

[0019] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle.

[0020] Figure 4 for Figure 2 A three-dimensional cross-sectional view of the middle BB.

[0021] Figure 5 It is a schematic diagram of the internal structure of the utility model.

[0022] Figure 6 Schematic diagram of the structure of the clamping jaws.

[0023] Explanation of the reference numerals: sleeve unit 10; extension plate 11; first slide groove 12; clamping jaw 13; sliding pin 14; tooth surface 15; screw rod 16; first nut 17; second nut 18; pull tab 19; pull rod 20; seat plate 21; second slide groove 22; fastening bolt 23; slot 24; connecting shaft 25; rib plate 26; first mounting nut 27; second mounting nut 28; movable slot 29. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] like Figure 1-6 As shown, a correction device for digital color printing includes a sleeve unit 10. Multiple sleeve units 10 are spliced ​​together to form a complete sleeve. A movable groove 29 is provided between each adjacent sleeve. A clamping jaw 13 is movably connected in each movable groove 29. A tooth surface 15 is provided on one end surface of each clamping jaw 13 located on the inner side of the sleeve unit 10. A screw rod 16 is slidably connected to one end of each clamping jaw 13 located on the inner side of the sleeve unit 10. A pull-piece 19 is fixedly connected to one end of each screw 16 extending out of the sleeve unit 10.

[0026] By changing the clamping radius of each clamping claw 13, different feed rollers can be clamped and fixed, and the extended length of the screw 16 can be adjusted so that each pull-out piece 19 rests on the color printing raw material belt, thereby avoiding the problem of the raw material belt being stuck.

[0027] like Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, an extension plate 11 is fixedly connected to the outer surface of each sleeve unit 10 at one side of each movable groove 29, and a group of first sliding grooves 12 are opened between every two adjacent extension plates 11. Sliding pins 14 are provided on both sides of each clamping jaw 13, and each sliding pin 14 is slidingly connected to the corresponding first sliding groove 12. A seat plate 21 is provided at the end of the sleeve unit 10 away from the pull-plate 19, and a plurality of groups of pull rods 20 are provided on one side of the seat plate 21 at the corresponding position of each clamping jaw 13. Each group of pull rods 20 is slidingly connected to the corresponding clamping jaw 13. A fastening bolt 23 is rotatably connected to the seat plate 21 at the corresponding position of each sleeve unit 10, and each fastening bolt 23 is threadedly connected to the corresponding sleeve unit 10.

[0028] By setting the seat plate 21 and the pull rod 20, the distance between the seat plate 21 and the sleeve unit 10 can be adjusted, and the sliding pin 14 can slide in the first slide groove 12 to adjust the clamping diameter of the clamping jaw 13, so as to adapt to the clamping and installation requirements of feed rollers of different diameters. The clamping diameter can be adjusted and locked by screwing the fastening bolt 23.

[0029] like Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, a second sliding groove 22 is provided on the seat plate 21 at the corresponding position of each screw 16, and each second sliding groove 22 is slidingly connected to the corresponding screw 16. A thread is provided on the screw 16, and each screw 16 is threadedly connected with a first nut 17 and a second nut 18 at both sides of the seat plate 21, and the respective pull-pieces 19 are staggered and slide relative to each other.

[0030] Since the clamping jaws 13 can adjust the clamping diameter, the spacing between each screw 16 can be changed accordingly. Since the pull-pull pieces 19 slide against each other, the range of the pull-pull area formed between the pull-pull pieces 19 can be changed accordingly. Therefore, when clamping the feed roller with a smaller diameter, the color printing raw material belt can also be supported. By adjusting the first nut 17 and the second nut 18 by the screw body, the outward extension distance of the screw 16 can be adjusted and locked to ensure that the pull-pull piece 19 can stably and accurately support the color printing raw material belt.

[0031] like Figure 2 、 Figure 4 and Figure 5 As shown, each sleeve unit 10 is fixedly connected by multiple sets of second mounting nuts 28, a connecting shaft 25 is provided on the outer side of the seat disc 21, the connecting shaft 25 is concentrically arranged with the seat disc 21, the seat disc 21 and the connecting shaft 25 are fixedly connected by a first mounting nut 27, a plurality of ribs 26 are evenly distributed on the outer side of one end of the connecting shaft 25 close to the seat disc 21, a slot 24 is opened on the seat disc 21 at the corresponding position of each rib 26, and each rib 26 is inserted into the corresponding slot 24 at its end.

[0032] The connection shaft 25 facilitates installation of the device in a color printing device, and the rib plate 26 improves structural strength and ensures practical service life.

[0033] In this embodiment, initially, the operator installs the device at the corresponding position of the color printing equipment. At this time, there is a long distance between the base plate 21 and the sleeve unit 10, and the distances between the clamping jaws 13 and the pull-pull pieces 19 are long.

[0034] When the feed roller needs to be installed, the operator inserts the end of the feed roller into the sleeve composed of multiple sleeve units 10. Then, the operator tightens each fastening bolt 23 to make the seat plate 21 approach the sleeve unit 10, and the pull rod 20 will push the clamping jaw 13 to slide in the first slide groove 12. Since the pull rod 20 is slidably connected to the clamping jaw 13, the normal movement of the clamping jaw 13 will not be affected during the oblique sliding of the clamping jaw 13 along the first slide groove 12.

[0035] Subsequently, each clamping jaw 13 slides synchronously along the inclined first slide groove 12 to stably clamp the feed roller, and the locking is completed by tightening each fastening bolt 23. At this time, since the moving distance of each clamping jaw 13 is completely consistent, the axis center of the feed roller during clamping is completely consistent with the axis center of the sleeve composed of each sleeve unit 10, ensuring the clamping accuracy of the feed roller.

[0036] In the process of adjusting the clamping jaws 13, the positions of the screws 16 change accordingly, so that the pull-pull pieces 19 expand or gather together, so that the range of the pull-pull area formed by each pull-pull piece 19 changes adaptively with the diameter of the feed roller, and thus can stably resist the color printing raw material belt, effectively avoiding the problem of the color printing raw material belt being stuck.

[0037] Subsequently, the operator screws each first nut 17 and the second nut 18 to adjust the extension distance of the screw 16. After all the pull-pieces 19 are stably and accurately against the color printing raw material belt, the operator tightens each first nut 17 and the second nut 18 to lock the position of the screw 16 and the pull-piece 19.

[0038] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0039] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, the elements defined by the phrase "comprising a..." do not preclude the presence of additional identical elements in the product or system comprising the elements.

[0040] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A correction device for digital color printing, characterized in that: The invention comprises a sleeve unit (10), wherein a plurality of the sleeve units (10) are assembled to form a complete sleeve, a movable groove (29) is provided between each two adjacent sleeve units (10), an extension plate (11) is provided on the surface of each sleeve unit (10) at one side of the movable groove (29), a group of inclined first sliding grooves (12) are provided on the two sides close to each other between the two opposite extension plates (11), a clamping jaw (13) is movably connected in each movable groove (29), a group of sliding pins (14) are provided on both sides of each clamping jaw (13), and each group of sliding pins (14) is slidably connected to the corresponding first sliding groove (12).

2. The digital color printing correction device according to claim 1, characterized in that: A seat plate (21) is provided on one side of the sleeve unit (10), and a group of pull rods (20) are provided on one side of the seat plate (21) at the corresponding position of each clamping jaw (13). Each group of the pull rods (20) is slidably connected to the clamping jaw (13). A fastening bolt (23) is rotatably connected at the corresponding position of each sleeve unit (10) in the seat plate (21), and each fastening bolt (23) is threadedly connected to the corresponding sleeve unit (10).

3. The digital color printing correction device according to claim 2, characterized in that: A screw rod (16) is slidably connected to one end of each clamping jaw (13) close to the inner side of the sleeve unit (10), and a second sliding groove (22) is provided on each seat plate (21) at a position corresponding to each screw rod (16). One end of each screw rod (16) is slidably connected to the corresponding second sliding groove (22), and one end of each screw rod (16) away from the seat plate (21) is fixedly connected to a pull-out piece (19), and each pull-out piece (19) slides relative to each other in an interlaced manner.

4. The digital color printing correction device according to claim 3, characterized in that: The surface of each screw rod (16) is provided with a thread, and each screw rod (16) is threadedly connected with a first nut (17) and a second nut (18) at both sides of the seat plate (21).

5. The digital color printing correction device according to claim 2, characterized in that: A connecting shaft (25) is provided on the outer side of the seat disc (21), and the connecting shaft (25) is concentrically arranged with the seat disc (21). The seat disc (21) and the connecting shaft (25) are fixedly connected via a first mounting nut (27). A plurality of ribs (26) are evenly distributed on the outer side of one end of the connecting shaft (25) close to the seat disc (21). A slot (24) is provided on the seat disc (21) at a position corresponding to each rib (26), and an end of each rib (26) is inserted into the corresponding slot (24).

6. The digital color printing correction device according to claim 1, characterized in that: Each of the clamping jaws (13) is provided with a tooth surface (15) on one end surface located inside the sleeve unit (10), and the sleeve units (10) are fixedly connected via a plurality of sets of second mounting nuts (28).

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