Cloth feeding mechanism of digital printing machine

Abstract

The utility model relates to the technical field of digital printing machines, and discloses a cloth feeding mechanism of a digital printing machine, which is characterized in that a printing medium sequentially bypasses a cloth feeding roller group, a first tension roller group, a second tension roller, a third tension roller, a spreading roller, a fourth tension roller, a fifth tension roller, a sixth tension roller group and a cloth conveying roller and is conveyed to the lower part of a printing trolley for printing. Wherein the spreading roller enables a printing medium to be spread towards two sides during printing, the spreading roller is provided with a separation groove, through the arrangement of the separation groove, framing printing can be carried out, two, three and even four pieces of printing medium can be separated, the printing medium can be spread separately, and each piece of printing medium is separated by the separation groove, so that the printing efficiency is improved, and the printing efficiency is improved. Multiple sets of conveying and printing with different widths can be completed at a time, the device adapts to the widths of media with different widths, waste is reduced, the printing efficiency is improved, the production efficiency is improved, and respective printing is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of digital printing machines, in particular to a cloth loading mechanism of a digital printing machine. Background Art

[0002] Digital printing machines are a type of large-format printer, similar to plotters in the CAD field. They use water-based dispersed inks for printing on transfer paper or fabric, and are primarily used for printing and dyeing clothing fabrics.

[0003] For a digital printing machine with more than 100 print heads, the length of its corresponding cloth loading mechanism can be as long as more than 5 meters. If this digital printing machine is used to print a print medium with a span of 2 meters, it will undoubtedly cause waste. Utility Model Content

[0004] Based on the above, the purpose of the present invention is to provide a cloth loading mechanism for a digital printing machine, which can complete the printing of two groups of cloths at the same time, reduce waste and improve printing efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a cloth loading mechanism for a digital printing machine, comprising:

[0007] cloth rack;

[0008] An upper cloth roller assembly is rotatably arranged on the upper cloth frame;

[0009] a first tensioning roller group, rotatably disposed on the upper cloth frame and located at the rear side of the upper cloth roller group;

[0010] a second tensioning roller rotatably disposed on the upper cloth frame and located at the rear side of the first tensioning roller group;

[0011] a third tensioning roller, rotatably disposed on the upper cloth frame and located below the rear side of the second tensioning roller;

[0012] an expansion roller, rotatably disposed on the upper cloth frame and located behind the second tensioning roller;

[0013] a fourth tensioning roller, rotatably disposed on the upper cloth frame and located below the expansion roller;

[0014] a fifth tensioning roller, rotatably disposed on the upper cloth rack and located below the fourth tensioning roller;

[0015] a sixth tensioning roller group, rotatably disposed on the upper cloth frame and located above the fifth tensioning roller;

[0016] a cloth feed roller, rotatably disposed on the upper cloth frame and located above the sixth tensioning roller group;

[0017] Wherein, a plurality of staggered separation grooves are provided on the outer periphery of the middle of the expansion roller;

[0018] The upper cloth driving mechanism is arranged on the upper cloth frame, and the output end of the mechanism is connected to the expansion roller.

[0019] Preferably, a correction component is also provided on the upper cloth rack, and the correction component is located between the first tensioning roller group and the second tensioning roller. The correction component includes a correction beam and two groups of correction drive mechanisms. Two groups of correction belts are provided on the top of both sides of the correction beam. The output ends of the two groups of correction drive mechanisms are connected to the correction belts one-to-one. Correction electric eyes are also provided on both sides of the correction beam, and a correction auxiliary roller is also rotatably provided between the two groups of correction belts.

[0020] Preferably, the upper cloth roller group includes a first linkage frame, the first linkage frame is rotatably connected to the upper cloth frame, and upper cloth roller 1 and upper cloth roller 2 are rotatably provided on both sides of the first linkage frame.

[0021] Preferably, the first tensioning roller group includes a second linkage frame, the second linkage frame is rotatably connected to the upper cloth frame, and a first tensioning roller 1 and a first tensioning roller 2 are rotatably provided on both sides of the second linkage frame.

[0022] Preferably, the sixth tensioning roller group includes a third linkage frame, the third linkage frame is rotatably connected to the upper cloth frame, and the sixth tensioning roller 1 and the sixth tensioning roller 2 are rotatably provided on both sides of the third linkage frame.

[0023] Preferably, the fifth tensioning roller is configured to be able to move up and down.

[0024] The beneficial effects of the utility model are:

[0025] The utility model provides a cloth feeding mechanism for a digital printing machine. The printing medium is sequentially passed through a cloth feeding roller group, a first tensioning roller group, a second tensioning roller, a third tensioning roller, an expansion roller, a fourth tensioning roller, a fifth tensioning roller, a sixth tensioning roller group, and a cloth feed roller, and is transported to the bottom of a printing carriage for printing. The expansion roller enables the printing medium to be expanded to both sides during printing, and a separation groove is provided on the expansion roller. By providing the separation groove, separate printing can be performed. The printing medium can be expanded individually, and each piece of the medium is separated by the separation groove. Multiple groups of different widths can be transported and printed at one time, reducing waste, improving printing efficiency, and ensuring that the printing of each piece is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 A structural diagram of a cloth loading mechanism of a digital printing machine is provided for an embodiment of the present utility model;

[0028] Figure 2 The embodiment of the utility model provides a top view of a cloth loading mechanism of a digital printing machine and a diagram of medium transportation;

[0029] Figure 3 for Figure 2 The cross-sectional view along the A-A1 direction and the medium are surround views.

[0030] In the picture:

[0031] 1. Medium; 2. Upper cloth frame; 20. Cloth feed roller; 21. Upper cloth roller group; 211. First linkage frame; 212. Upper cloth roller 1; 213. Upper cloth roller 2; 22. First tensioning roller group; 221. Second linkage frame; 222. First tensioning roller 1; 223. First tensioning roller 2; 23. Deviation correction component; 231. Deviation correction drive mechanism; 232. Deviation correction beam; 233. Deviation correction belt; 234. Deviation correction auxiliary roller; 235. Deviation correction electric eye; 24. Second tensioning roller; 25. Third tensioning roller; 26. Expanding roller; 261. Separation slot; 262. Upper cloth drive mechanism; 27. Fourth tensioning roller; 28. Fifth tensioning roller; 29. ​​Sixth tensioning roller group; 291. Third linkage frame; 292. Sixth tensioning roller 1; 293. Sixth tensioning roller 2. DETAILED DESCRIPTION

[0032] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0033] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0036] like Figures 1 to 3As shown, the embodiment of the present invention provides a cloth feeding mechanism of a digital printing machine, comprising: an upper cloth frame 2; an upper cloth roller group 21, which is rotatably arranged on the upper cloth frame 2, and the upper cloth roller group 21 includes a first linkage frame 211, which is rotatably connected to the upper cloth frame 2, and an upper cloth roller 1 212 and an upper cloth roller 2 213 are rotatably arranged on both sides of the first linkage frame 211. It should be noted that the first linkage frame 211 can be driven to rotate by a driving mechanism; a first tensioning roller group 22, which is rotatably arranged on the upper cloth frame 2 and is located behind the upper cloth roller group 21. On the other side, the first tensioning roller group 22 includes a second linkage frame 221, and the second linkage frame 221 is rotatably connected to the upper cloth frame 2. The first tensioning roller 1 222 and the second tensioning roller 24 2 are rotatably arranged on both sides of the second linkage frame 221. It should be noted that the second linkage frame 221 can be driven to rotate by a driving mechanism; the second tensioning roller 24 is rotatably arranged on the upper cloth frame 2 and is located at the rear side of the first tensioning roller group 22; the third tensioning roller 25 is rotatably arranged on the upper cloth frame 2 and is located below the rear side of the second tensioning roller 24; the expansion roller 2 6, is rotatably arranged on the upper cloth frame 2 and is located at the rear side of the second tensioning roller 24; the fourth tensioning roller 27 is rotatably arranged on the upper cloth frame 2 and is located below the expansion roller 26; the fifth tensioning roller 28 is rotatably arranged on the upper cloth frame 2 and is located below the fourth tensioning roller 27; the sixth tensioning roller group 29 is rotatably arranged on the upper cloth frame 2 and is located above the fifth tensioning roller 28, the sixth tensioning roller group 29 includes a third linkage frame 291, the third linkage frame 291 is rotatably connected to the upper cloth frame 2, and the two ends of the third linkage frame 291 are connected. The side is rotatably provided with a sixth tensioning roller 1 292 and a sixth tensioning roller 2 293. It should be noted that the third linkage frame 291 can be driven and connected by a driving mechanism; the cloth feed roller 20 is rotatably provided on the upper cloth frame 2 and is located above the sixth tensioning roller group 29; wherein, a plurality of staggered separation grooves 261 are provided on the outer periphery of the middle of the expansion roller 26; the upper cloth driving mechanism 262 is provided on the upper cloth frame 2, and its output end is connected to the expansion roller 26. The upper cloth driving mechanism 262 is a driving motor and a reducer, and its output end is coaxially connected to the expansion roller 26.

[0037] In the embodiment of the present utility model, Figure 3As shown, the printed medium 1 passes through the upper cloth roller 1 212, the upper cloth roller 2 213, the first tensioning roller 2 223, the first tensioning roller 2 223, the second tensioning roller 24, the third tensioning roller 25, the expansion roller 26, the fourth tensioning roller 27, the fifth tensioning roller 28, the sixth tensioning roller 1 292, the sixth tensioning roller 2 293 and the cloth feed roller 20 in sequence, and is finally sent out from the cloth feed roller 20 to the printing carriage for printing. Among them, when the printing medium 1 passes by the upper cloth roller 1 212 and the upper cloth roller 2 213, the driving mechanism can drive the first linkage frame 211 to rotate to comb and tension the upper cloth. When the printing medium 1 passes by the first tensioning roller 1 222 and the first tensioning roller 2 223, the driving mechanism can drive the second linkage frame 221 to rotate, so that the positions of the first tensioning roller 1 222 and the first tensioning roller 2 223 are changed to comb and tension the cloth. Before sending out the cloth, similarly, when the printing medium 1 passes by the sixth tensioning roller 1 292 and the sixth tensioning roller 2 293, the driving mechanism can drive the third linkage frame 221 to rotate. The movable frame 291 rotates to comb and tension the printing medium 1 before feeding; further, the expansion roller 26 enables the printing medium 1 to expand to both sides during printing, and a separation groove is provided on the expansion roller. By setting the separation groove, it is possible to perform split printing, which can be divided into two, three, or even four sections. In this embodiment, it is two sections. The printing media can expand separately, and each section of the media is separated by the separation groove. It is possible to complete the transportation and printing of multiple groups of different widths at one time, adapt to the width of different media, reduce waste, improve printing efficiency, and the individual printing is not affected.

[0038] In some embodiments, as Figures 1 to 3 As shown, the upper cloth rack 2 is also provided with a correction component 23, and the correction component 23 is located between the first tensioning roller group 22 and the second tensioning roller 24. The correction component 23 includes a correction beam 232 and two groups of correction drive mechanisms 231. Two groups of correction belts 233 are provided on the top of both sides of the correction beam 232. The output ends of the two groups of correction drive mechanisms 231 are connected to the correction belts 233 one-to-one. Correction electric eyes 235 are also provided on both sides of the correction beam 232. A correction auxiliary roller 234 is also rotatably provided between the two groups of correction belts 233. In order to prevent the printing medium 1 from being deviated during transportation, a deflection correction electric eye 235 is set, and the printing medium 1 is kept between two groups of deflection correction electric eyes 235. Once the printing medium 1 is deviated, when the deflection correction electric eye 235 senses that the printing medium 1 is deviated, the corresponding deflection correction drive mechanism 231 will be started to drive the deflection correction belt 233 to move. The deflection correction belt 233 drives the printing medium 1 to move, thereby achieving the deflection correction function. When the deflection correction is in the correct position and the deflection correction electric eye 235 is not in the sensing state, the deflection correction drive mechanism will work.

[0039] In some embodiments, as Figures 1 to 3As shown, the fifth tensioning roller 28 is configured to move up and down. Specifically, sliders can be provided on both sides of the fifth tensioning roller 28. The sliders are threaded together with a lead screw and a drive mechanism. The drive mechanism drives the lead screw to rotate, causing the sliders to move up and down, thereby allowing the fifth tensioning roller 28 to move up and down, thereby maintaining the print medium 1 in a tensioned state and ensuring printing accuracy.

[0040] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A cloth loading mechanism for a digital printing machine, characterized in that: include: Upper cloth rack(2); An upper cloth roller group (21) is rotatably arranged on the upper cloth frame (2); A first tensioning roller group (22) is rotatably mounted on the upper cloth rack (2) and is located at the rear side of the upper cloth roller group (21); A second tensioning roller (24) is rotatably mounted on the upper cloth rack (2) and is located at the rear side of the first tensioning roller group (22); a third tensioning roller (25) rotatably mounted on the upper cloth rack (2) and located below the rear side of the second tensioning roller (24); an expansion roller (26) rotatably disposed on the upper cloth frame (2) and located at the rear side of the second tensioning roller (24); a fourth tensioning roller (27) rotatably arranged on the upper cloth frame (2) and located below the expansion roller (26); a fifth tensioning roller (28) rotatably disposed on the upper cloth rack (2) and located below the fourth tensioning roller (27); a sixth tensioning roller group (29) rotatably arranged on the upper cloth rack (2) and located above the fifth tensioning roller (28); a cloth feed roller (20) rotatably arranged on the upper cloth rack (2) and located above the sixth tensioning roller group (29); Wherein, a plurality of staggered separation grooves (261) are provided on the outer periphery of the middle of the expansion roller (26); An upper cloth driving mechanism (262) is arranged on the upper cloth frame (2), and an output end thereof is connected to the expansion roller (26).

2. The cloth loading mechanism of the digital printing machine according to claim 1, characterized in that: The upper cloth rack (2) is also provided with a deviation correction component (23), the deviation correction component (23) is located between the first tensioning roller group (22) and the second tensioning roller (24), the deviation correction component (23) includes a deviation correction beam (232) and two groups of deviation correction driving mechanisms (231), two groups of deviation correction belts (233) are provided on the top of both sides of the deviation correction beam (232), the output ends of the two groups of the deviation correction driving mechanisms (231) are connected to the deviation correction belts (233) one-to-one, deviation correction electric eyes (235) are also provided on both sides of the deviation correction beam (232), and a deviation correction auxiliary roller (234) is also rotatably provided between the two groups of the deviation correction belts (233).

3. The cloth loading mechanism of a digital printing machine according to claim 1, characterized in that: The upper cloth roller group (21) comprises a first linkage frame (211), the first linkage frame (211) is rotatably connected to the upper cloth frame (2), and upper cloth roller 1 (212) and upper cloth roller 2 (213) are rotatably provided on both sides of the first linkage frame (211).

4. The cloth loading mechanism of a digital printing machine according to claim 1, characterized in that: The first tensioning roller group (22) comprises a second linkage frame (221), the second linkage frame (221) is rotatably connected to the upper cloth frame (2), and a first tensioning roller 1 (222) and a first tensioning roller 2 (223) are rotatably provided on both sides of the second linkage frame (221).

5. The cloth loading mechanism of a digital printing machine according to claim 1, characterized in that: The sixth tensioning roller group (29) includes a third linkage frame (291), the third linkage frame (291) is rotatably connected to the upper cloth frame (2), and a sixth tensioning roller 1 (292) and a sixth tensioning roller 2 (293) are rotatably provided on both sides of the third linkage frame (291).

6. The cloth loading mechanism of a digital printing machine according to claim 1, characterized in that: The fifth tension roller (28) is configured to be movable up and down.

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