High-speed constant-tension multicolor printing machine
By employing a combination design of a fixed frame, a sliding frame, a drive assembly, and a drive motor in a multicolor printing press, constant tension control of the printing film is achieved, solving the problem of unstable tension in the printing press and improving the overall aesthetics and quality of the printed products.
Patent Information
- Application Number
- CN202520404454.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing multicolor printing presses are unstable in handling the tension of the printing film, resulting in quality problems such as uneven color and misaligned patterns in the printed products.
The design employs a combination of a fixed frame, a sliding frame, a drive assembly, and a drive motor. By synchronously rotating the active and driven rollers in opposite directions, combined with the adjustment of the damping bearing and the lifting frame, constant tension control of the printing film is achieved.
Ensuring that the tension of the printing film remains constant during the printing process improves the appearance and quality of the printed products.
Smart Images
Figure CN223737331U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to printing technical field, especially a kind of high-speed constant tension multicolor printing machine. BACKGROUND
[0002] Multicolor printing machine is a kind of printing machinery specially designed for the multicolor continuous printing of various roll-shaped printing films, such as plastic film, paper, textile fabric, etc. In the production process of food packaging film, multicolor printing machine plays a crucial role, and it is an indispensable key equipment in the production process.
[0003] However, the existing multicolor printing machines on the market have certain deficiencies in handling the tension of printing films. These machines often have difficulty in achieving constant tension processing printing, which can lead to unstable tension during the printing process. Due to the fluctuation of tension, the final printed products may have some quality problems, such as uneven color, pattern misalignment, etc., which can affect the overall appearance and quality of the products. SUMMARY
[0004] To solve the above problems, the utility model provides a kind of high-speed constant tension multicolor printing machine.
[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of high-speed constant tension multicolor printing machine, including mounting plate and the multicolor printing machine body being set in the middle part of mounting plate, the fixed frame is set on the mounting plate and located in the side of multicolor printing machine body, three rotating rollers are horizontally rotatably arranged on the fixed frame, the three rotating rollers are arranged in a triangular shape, the mounting plate is set on the side away from fixed frame and is provided with mounting frame, the sliding frame is vertically slidably arranged on the mounting frame, the driving assembly for driving the sliding frame to slide is set on the mounting frame, the driving motor is horizontally rotatably arranged on the mounting frame, the output shaft of driving motor is connected with the roller shaft of driving roller, the linkage assembly is set on the fixed frame for synchronous reverse rotation of driving roller and driven roller.
[0006] By adopting the technical scheme, the fixing frame, the sliding frame, the driving assembly and the driving motor are arranged, the printing film is bypassed from below the rotating roller away from the multi-color printing machine body, then bypassed above the upper side of the rotating roller, then bypassed below the rotating roller close to the multi-color printing machine body, and then passed through the multi-color printing machine body. Then, the driving assembly drives the sliding frame and the driven roller to rise, and the printing film is passed through between the driving roller and the driven roller. Then, the driving assembly drives the sliding frame and the driven roller to descend, and the driven roller and the driving roller clamp the printing film. The driving motor then drives the driving roller to rotate, and under the action of the linkage assembly, the driving roller and the driven roller rotate in reverse synchronously, so as to move the printing film. When the printing film is printed in the multi-color printing machine body, the printing film is limited by the driving roller, the driven roller and the rotating roller on both sides, so that the tension of the printing film in the printing process can reach a constant state, and the overall appearance and quality of the printed product are ensured.
[0007] Further, the lifting frame is vertically slidably arranged in the fixing frame, the uppermost rotating roller is rotationally connected with the lifting frame, and the electric push rod is vertically arranged on the mounting plate, and the piston rod of the electric push rod is upwardly connected with the bottom of the lifting frame.
[0008] By adopting the technical scheme, the lifting frame and the electric push rod are arranged, the lifting frame is driven to rise and fall by the electric push rod, and the upper rotating roller is driven to move, so as to adjust the position of the upper rotating roller.
[0009] Further, the damping bearings are sleeved on the roller shafts at both ends of the rotating rollers, the inner ring of the damping bearing on the upper rotating roller is connected with the roller shaft of the rotating roller, and the outer ring is connected with the lifting frame, and the inner ring of the damping bearing on the lower rotating roller is connected with the roller shaft of the rotating roller, and the outer ring is connected with the fixing frame.
[0010] By adopting the technical scheme, the damping bearings are sleeved on the roller shafts at both ends of the rotating rollers, and the damping bearings provide smooth resistance during the rotation of the rotating rollers, so that the pulling effect of the three rotating rollers on the printing film is better, and the tension of the printing film in the printing process can further reach a constant state.
[0011] Further, the mounting frame comprises two vertical plates which are arranged at intervals on the mounting plate, the roller shaft of the driving roller passes through the vertical plates and is rotationally connected with the vertical plates, two vertical columns are arranged at intervals on the top of the vertical plates, and a top plate is arranged on the top of the four vertical columns, the sliding frame comprises two sliding plates which are arranged at intervals, the roller shaft of the driven roller passes through the sliding plates and is rotationally connected with the sliding plates, two vertical sliding holes are arranged at intervals on the sliding plates, the sliding holes are slidably connected with the corresponding vertical columns, and the top of the two sliding plates is connected by a connecting plate.
[0012] Further, the driving assembly comprises a threaded rod vertically rotatably arranged on the connecting plate, the top plate is screw-coupled with the threaded rod through a threaded hole, and a rotating handle is arranged on the top of the threaded rod.
[0013] By adopting the above technical scheme, the threaded rod and the rotating handle are arranged, the rotating handle drives the threaded rod to rotate, the top plate is screw-coupled with the threaded rod through the threaded hole, the threaded rod can be vertically moved when the threaded rod rotates, thereby driving the sliding frame and the driven roller to be vertically moved.
[0014] Further, the linkage assembly comprises a driving pulley fixedly sleeved on the roller shaft of one driving roller, a driven gear is fixedly sleeved on the roller shaft of the driven roller adjacent to the driving pulley, a rotating shaft is horizontally rotatably arranged on the sliding plate adjacent to the driving pulley, a driving gear and a driven pulley are fixedly sleeved on the rotating shaft, the driving gear is engaged with the driven gear, a connecting seat is arranged on the vertical plate adjacent to the driving pulley, a fixed tube is horizontally arranged on the connecting plate, a sliding rod is slidably arranged in the fixed tube, an installation seat is arranged on the end of the sliding rod away from the connecting plate, a tension pulley is rotatably arranged on the installation seat, the tension pulley, the driving pulley and the driven pulley are connected through a transmission belt, and a compression spring is sleeved on the rod between the installation seat and the fixed tube of the sliding rod.
[0015] By adopting the above technical scheme, the driving pulley, the driven gear, the driving gear and the driven pulley are arranged, the driving roller drives the driving pulley to rotate, thereby driving the tension pulley and the driven pulley to rotate, and further driving the rotating shaft and the driving gear to rotate, the driving gear is engaged with the driven gear, the driven gear drives the driven roller to rotate when the driven roller rotates. When the sliding frame drives the driven roller to rise, the distance between the driving pulley and the driven pulley becomes larger, the position of the tension pulley and the installation seat is moved, and the sliding rod slides in the fixed tube to limit the moving direction of the tension pulley. When the position of the tension pulley and the installation seat is moved, the compression spring is compressed, and the compression spring pushes the installation seat and the tension pulley to reset under the elastic force when the sliding frame and the driven pulley reset.
[0016] Further, the driving gear and the driven gear are consistent in size, and the driving pulley and the driven pulley are consistent in size.
[0017] In conclusion, the utility model has the following beneficial effects: setting up fixed frame, sliding frame, drive assembly, drive motor, the printing film is bypassed from the rotating roller below of far away multicolor printing machine body, then passes through the upside of rotating roller, then bypasses the rotating roller below close to multicolor printing machine body, passes through multicolor printing machine body. Subsequently, drive assembly drives sliding frame and driven roller to rise, and the printing film is passed through driving roller and driven roller. Then, drive assembly makes sliding frame and driven roller descend, and driven roller, driving roller clamp printing film. Drive motor subsequently drives driving roller to rotate, under the action of linkage assembly, driving roller and driven roller synchronous reverse rotation, thereby moving printing film. When printing film is printed in multicolor printing machine body, the both sides of printing film are limited by driving roller, driven roller and rotating roller respectively, so that the tension of printing film in printing can reach constant state, guarantee the overall appearance and quality of printing product. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the whole structure schematic diagram of the utility model embodiment;
[0019] Figure 2 It is the structure schematic diagram of fixed frame and lifting frame of the utility model embodiment;
[0020] Figure 3 It is the structure schematic diagram of mounting frame and sliding frame of the utility model embodiment;
[0021] Figure 4 It is Figure 3 The enlarged view of A of it.
[0022] In the drawing: 10, mounting plate;11, multicolor printing machine body;20, fixed frame;21, lifting frame;22, electric push rod;30, rotating roller;31, damping bearing;40, mounting frame;401, vertical plate;402, stand;403, top plate;41, driving roller;42, fixed seat;43, drive motor;50, sliding frame;501, sliding plate;502, connecting plate;51, driven roller;60, drive assembly;61, threaded rod;62, rotating handle;70, linkage assembly;71, driving pulley;72, driven gear;73, rotating shaft;74, driving gear;75, driven pulley;76, connecting seat;761, fixed tube;762, sliding rod;763, compression spring;77, mounting seat;78, tension pulley;79, transmission belt. DETAILED DESCRIPTION
[0023] Clearly, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of the present application.
[0024] As shown in Figures 1-4 The present application discloses a high-speed constant tension multi-color printer, which comprises a mounting plate 10, a multi-color printer body 11, a fixed frame 20, a sliding frame 50, a driving assembly 60, the multi-color printer body 11 is arranged at the middle of the top surface of the mounting plate 10, the fixed frame 20 is arranged on the mounting plate 10 at one side of the multi-color printer body 11, three rotating rollers 30 are horizontally arranged on the fixed frame 20, and the three rotating rollers 30 are arranged in a triangular shape. The printing film is wound from below the rotating roller 30 away from the multi-color printer body 11, then passes above the upper side of the rotating roller 30, and then is wound below the rotating roller 30 close to the multi-color printer body 11, and then passes through the multi-color printer body 11. The mounting plate 10 is provided with a mounting bracket 40 away from the fixed frame 20, the sliding frame 50 is vertically arranged on the mounting bracket 40, and the driving assembly 60 is arranged on the mounting bracket 40 and used for driving the sliding frame 50 to slide. A driving roller 41 is horizontally arranged on the mounting bracket 40, a driven roller 51 is horizontally arranged on the sliding frame 50, and the axes of the driving roller 41, the driven roller 51 and the rotating roller 30 are parallel to each other. The driving assembly 60 drives the sliding frame 50 and the driven roller 51 to rise, and then the printing film passing through the multi-color printer body 11 passes between the driving roller 41 and the driven roller 51. Then, the driving assembly 60 drives the sliding frame 50 and the driven roller 51 to descend, and the driven roller 51 and the driving roller 41 clamp the printing film. A fixing seat 42 is arranged on the mounting bracket 40, a driving motor 43 is horizontally arranged on the fixing seat 42, the output shaft of the driving motor 43 is connected with the roller shaft of the driving roller 41, a linkage assembly 70 is arranged on the fixed frame 20 and used for synchronously and reversely rotating the driving roller 41 and the driven roller 51, the driving motor 43 drives the driving roller 41 to rotate, and the driving roller 41 and the driven roller 51 synchronously and reversely rotate under the action of the linkage assembly 70, so as to move the printing film. When the printing film is printed in the multi-color printer body 11, the printing film is limited by the driving roller 41, the driven roller 51 and the rotating roller 30 on both sides, so that the tension of the printing film in the printing process can reach a constant state, and the overall appearance and quality of the printed product are ensured.
[0025] Specifically, the mounting frame 40 comprises two stand plates 401 which are arranged at intervals on the mounting plate 10, the roller shaft of the driving roller 41 penetrates through the stand plates 401 and is rotatably connected with the stand plates 401, so as to ensure smooth rotation of the driving roller 41. The top of each stand plate 401 is arranged with two vertical stand columns 402, and the top of the four stand columns 402 is arranged with a top plate 403. The sliding frame 50 comprises two slide plates 501 which are arranged at intervals, and two vertical slide holes are arranged at intervals on the slide plate 501 and are slidably connected with the corresponding stand columns 402. The top of the two slide plates 501 is connected through a connecting plate 502, so that the two slide plates 501 and the connecting plate 502 can be lifted synchronously. The roller shaft of the driven roller 51 penetrates through the slide plate 501 and is rotatably connected with the slide plate 501, so as to ensure smooth rotation of the driven roller 51. The driving assembly 60 comprises a threaded rod 61 which is arranged vertically on the connecting plate 502, the top plate 403 is screw-connected with the threaded rod 61 through a threaded hole, the top of the threaded rod 61 is arranged with a rotating handle 62, and rotating the rotating handle 62 drives the threaded rod 61 to rotate. Since the top plate 403 is screw-connected with the threaded rod 61 through the threaded hole, the threaded rod 61 can move vertically relative to the top plate 403 when the threaded rod 61 rotates, so as to drive the sliding frame 50 and the driven roller 51 to move vertically.
[0026] When the linkage assembly 70 is set, the driving pulley 71 is fixedly sleeved on the roller shaft of one of the driving rollers 41, the driven gear 72 is fixedly sleeved on the roller shaft of the driven roller 51 adjacent to the driving pulley 71, the rotating shaft 73 is horizontally arranged on the sliding plate 501 adjacent to the driving pulley 71, the driving gear 74 and the driven pulley 75 are fixedly sleeved on the rotating shaft 73, so that the driven pulley 75 drives the rotating shaft 73 and the driving gear 74 to rotate when the driven pulley 75 rotates. The driving gear 74 is engaged with the driven gear 72, so that the driven gear 72 drives the driven roller 51 to rotate. The driving gear 74 and the driven gear 72 are consistent in size, and the driving pulley 71 and the driven pulley 75 are consistent in size. The connecting seat 76 is arranged on the vertical plate 401 adjacent to the driving pulley 71, the fixed tube 761 is horizontally arranged on the connecting plate 502, the sliding rod 762 is slidingly arranged in the fixed tube 761, the mounting seat 77 is arranged on one end of the sliding rod 762 away from the connecting plate 502, the tension pulley 78 is rotatably arranged on the mounting seat 77, and the tension pulley 78, the driving pulley 71 and the driven pulley 75 are connected through the transmission belt 79. The driving roller 41 drives the driving pulley 71 to rotate, thereby driving the tension pulley 78 and the driven pulley 75 to rotate. The compression spring 763 is sleeved on the rod between the mounting seat 77 and the fixed tube 761, one end of the compression spring 763 is connected with the mounting seat 77, and the other end of the compression spring 763 is connected with the fixed tube 761. When the sliding frame 50 drives the driven roller 51 to rise, the distance between the driving pulley 71 and the driven pulley 75 becomes larger, so that the position of the tension pulley 78 and the mounting seat 77 moves, the sliding rod 762 slides in the fixed tube 761, and the movement direction of the tension pulley 78 is limited. When the position of the tension pulley 78 and the mounting seat 77 moves, the compression spring 763 is compressed, and when the sliding frame 50 and the driven pulley 75 reset, the compression spring 763 pushes the mounting seat 77 and the tension pulley 78 to reset under the action of the elastic force.
[0027] Specifically, the lifting frame 21 is vertically slidingly arranged in the fixed frame 20, the uppermost rotating roller 30 is rotatably connected with the lifting frame 21, the electric push rod 22 is vertically arranged on the mounting plate 10, the piston rod of the electric push rod 22 is upwardly connected with the bottom of the lifting frame 21, the lifting frame 21 is lifted by the electric push rod 22, thereby driving the upper rotating roller 30 to move, so as to adjust the position of the upper rotating roller 30. The damping bearing 31 is sleeved on the roller shaft of each of the rotating rollers 30, the inner ring of the damping bearing 31 on the upper rotating roller 30 is connected with the roller shaft of the rotating roller 30, and the outer ring is connected with the lifting frame 21, the inner ring of the damping bearing 31 on the lower rotating roller 30 is connected with the roller shaft of the rotating roller 30, and the outer ring is connected with the fixed frame 20. The damping bearing 31 provides stable resistance during the rotation of the rotating roller 30, so that the three rotating rollers 30 have better pulling effect on the printing film, and further ensure that the tension of the printing film in printing can reach a constant state.
[0028] The use principle of the high-speed constant tension multi-color printer in the embodiment is as follows: first, the rotating handle 62 is rotated to drive the threaded rod 61 to rotate, and the sliding frame 50 and the driven roller 51 are lifted, so that the distance between the driving pulley 71 and the driven pulley 75 is increased, and then the position of the tension pulley 78 and the mounting seat 77 is moved, the sliding rod 762 slides in the fixed tube 761, and the compression spring 763 is compressed. Subsequently, the printing film is wound from below the rotating roller 30 away from the multi-color printer body 11, then passes above the rotating roller 30, and then is wound below the rotating roller 30 close to the multi-color printer body 11, passes through the multi-color printer body 11, and then passes through the driving roller 41 and the driven roller 51. Then, the rotating handle 62 is rotated to drive the threaded rod 61 to rotate, so that the sliding frame 50 and the driven roller 51 are lowered, the compression spring 763 is pushed to reset the mounting seat 77 and the tension pulley 78 under the action of the elastic force, and the driven roller 51 and the driving roller 41 clamp the printing film. Then, the driving motor 43 is started to drive the driving roller 41 to rotate, the driving roller 41 is rotated to drive the driving pulley 71 to rotate, so as to drive the tension pulley 78, the driven pulley 75, the rotating shaft 73, the driving gear 74 and the driven roller 51 to rotate, so as to move the printing film. The multi-color printer body 11 continuously prints the printing film passing through it.
[0029] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the technical field, some improvements and decorations without departing from the principles of the present application are also considered to be within the protection scope of the present application.
Claims
1. A high-speed constant tension multi-color printer comprising a mounting plate (10) and a multi-color printer body (11) disposed in the middle of the mounting plate (10), characterized in that: The mounting plate (10) is provided with a fixed frame (20) on one side of the body (11) of the multi-color printing machine, three rotating rollers (30) are horizontally arranged on the fixed frame (20), the mounting plate (10) is provided with a mounting frame (40) away from the fixed frame (20), a sliding frame (50) is vertically arranged on the mounting frame (40), a driving assembly (60) is arranged on the mounting frame (40) to drive the sliding of the sliding frame (50), a driving roller (41) is horizontally arranged on the mounting frame (40), a driven roller (51) is horizontally arranged on the sliding frame (50), a fixed seat (42) is arranged on the mounting frame (40), a driving motor (43) is horizontally arranged on the fixed seat (42), the output shaft of the driving motor (43) is connected with the roller shaft of the driving roller (41), and a linkage assembly (70) is arranged on the fixed frame (20) to synchronously and reversely rotate the driving roller (41) and the driven roller (51).
2. A high speed constant tension multi-color printer according to claim 1, wherein: A lifting frame (21) is vertically arranged in the fixed frame (20), the uppermost rotating roller (30) is rotationally connected with the lifting frame (21), and an electric push rod (22) is vertically arranged on the mounting plate (10), the piston rod of the electric push rod (22) is upwardly connected with the bottom of the lifting frame (21).
3. A high speed constant tension multi-color printer according to claim 2, wherein: Damping bearings (31) are arranged on the roller shafts at both ends of the rotating roller (30), the inner ring of the damping bearing (31) on the upper rotating roller (30) is connected with the roller shaft of the rotating roller (30), and the outer ring is connected with the lifting frame (21), and the inner ring of the damping bearing (31) on the lower rotating roller (30) is connected with the roller shaft of the rotating roller (30), and the outer ring is connected with the fixed frame (20).
4. A high speed constant tension multi-color printer according to claim 1, wherein: The mounting frame (40) comprises two stand plates (401) which are arranged at intervals on the mounting plate (10), the roller shaft of the driving roller (41) penetrates through the stand plate (401) and is rotationally connected with the stand plate (401), two vertical stand columns (402) are arranged at intervals on the top of the stand plate (401), and a top plate (403) is arranged on the top of the four stand columns (402), the sliding frame (50) comprises two sliding plates (501) which are arranged at intervals, the roller shaft of the driven roller (51) penetrates through the sliding plate (501) and is rotationally connected with the sliding plate (501), two vertical sliding holes are arranged at intervals on the sliding plate (501), the sliding holes are slidably connected with the corresponding stand columns (402), and the top of the two sliding plates (501) is connected through a connecting plate (502).
5. A high speed constant tension multi-color printer according to claim 4, wherein: The driving assembly (60) comprises a threaded rod (61) which is vertically arranged on the connecting plate (502), the top plate (403) is screw-connected with the threaded rod (61) through a threaded hole, and a rotating handle (62) is arranged on the top of the threaded rod (61).
6. A high speed constant tension multi-color printer according to claim 4, wherein: The linkage assembly (70) comprises a driving pulley (71) fixedly sleeved on the roller shaft of one of the driving rollers (41), a driven gear (72) fixedly sleeved on the roller shaft of the driven roller (51) adjacent to the driving pulley (71), a rotating shaft (73) horizontally arranged and rotatable on the slide plate (501) adjacent to the driving pulley (71), a driving gear (74) and a driven pulley (75) fixedly sleeved on the rotating shaft (73), the driving gear (74) engaged with the driven gear (72), a connecting seat (76) arranged on the vertical plate (401) adjacent to the driving pulley (71), a fixed tube (761) horizontally arranged on the connecting plate (502), a sliding rod (762) slidingly arranged in the fixed tube (761), a mounting seat (77) arranged on the end of the sliding rod (762) away from the connecting plate (502), a tension pulley (78) rotatably arranged on the mounting seat (77), the tension pulley (78), the driving pulley (71) and the driven pulley (75) connected through a transmission belt (79), and a compression spring (763) sleeved on the rod between the mounting seat (77) and the fixed tube (761).
7. A high speed constant tension multi-color printer according to claim 6, wherein: The driving gear (74) and the driven gear (72) are of the same size, and the driving pulley (71) and the driven pulley (75) are of the same size.