CN216330934U - Double-sided printing device - Google Patents
Double-sided printing device Download PDFInfo
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- CN216330934U CN216330934U CN202122706907.8U CN202122706907U CN216330934U CN 216330934 U CN216330934 U CN 216330934U CN 202122706907 U CN202122706907 U CN 202122706907U CN 216330934 U CN216330934 U CN 216330934U
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- printing
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- drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/60—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
Abstract
The utility model discloses a double-sided printing device, comprising: the unwinding unit is used for unwinding the printing paper roll and detecting the paper stock; a winding unit for collecting printed paper and maintaining paper path tension; the deviation rectifying unit is used for rectifying deviation of paper before entering the printing area; a printing unit for printing contents on a substrate sheet; a drying unit for drying the printed paper; a drawing unit for ensuring the surface tension of the paper in the printing zone; the unreeling unit is arranged at the inlet end of the printing unit, the reeling unit is arranged at the outlet end of the printing unit, and the printing unit is internally provided with a deviation rectifying unit, a drying unit and a traction unit. The effect is as follows: the printing machine has the advantages that the accuracy of paper feeding is guaranteed, the optimal printing state of paper and the accuracy of printing positioning are guaranteed, the paper is dried immediately after printing, the paper is prevented from being broken in a high-speed paper feeding state, and the front side printing and the back side printing are corrected, pulled and dried respectively and independently, so that mutual interference is avoided.
Description
Technical Field
The utility model relates to the technical field of ink-jet printing, in particular to a double-sided printing device applied to an industrial ink-jet printer.
Background
The ink jet printing is an emerging printing mode, the application of which is gradually moving from office printing to industrial printing, and is different from the problems of traditional offset printing in the aspects of plate making cost, operation difficulty, environmental pollution and the like, the ink jet printing is deeply favored by the characteristics of intelligence, easiness in operation, no plate making, environmental protection printing and the like, but different from office printing, the positioning requirement of industrial printing on printing content is higher, the ink jet printing is plateless, the positioning accuracy of jet printing can be ensured only by adjusting paper, in addition, the ink jet printing is generally non-contact water-based ink jet printing, so that the ink has certain impact force after entering the paper, the paper is deformed, secondary errors can be caused, the printing quality is influenced, of course, the ink is also the problem of single-sided printing, the generated errors are larger if double-sided printing is needed, and the printing quality is poorer, therefore, how to solve the printing positioning of the inkjet printing, especially the double-sided inkjet printing, is a technical problem that needs to be solved urgently by the person skilled in the art.
SUMMERY OF THE UTILITY MODEL
Accordingly, the present invention is directed to a duplex printing apparatus that solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the utility model provides the following technical scheme:
according to a first aspect of the present invention, a duplex printing apparatus includes:
the unwinding unit is used for unwinding the printing paper roll and detecting the paper stock;
a winding unit for collecting printed paper and maintaining paper path tension;
the deviation rectifying unit is used for rectifying deviation of paper before entering the printing area;
a printing unit for printing contents on a substrate sheet;
a drying unit for drying the printed paper;
a drawing unit for ensuring the surface tension of the paper in the printing zone;
the unreeling unit is arranged at the inlet end of the printing unit, the reeling unit is arranged at the outlet end of the printing unit, and the printing unit is internally provided with the deviation rectifying unit, the drying unit and the traction unit;
the correction unit comprises a front correction module for correcting the paper entering the front printing area and a back correction module for correcting the paper entering the back printing area;
the printing unit comprises a front side printing module for printing front side contents of paper and a back side printing module for printing back side contents of the paper;
the drying unit comprises a front drying module for drying the front content of the paper and a back drying module for drying the back content of the paper;
the traction unit comprises a front traction module for ensuring the paper surface tension of the front printing section and a back traction module for ensuring the paper surface tension of the back printing section;
the front traction module comprises a first front traction roller, a second front traction roller and a front tension detection assembly;
the reverse side traction module comprises a first reverse side traction roller, a second reverse side traction roller and a reverse side tension detection assembly.
Furthermore, the front traction module is located between the front deviation rectifying module and the front printing module, and the back traction module is located between the back deviation rectifying module and the back printing module.
Furthermore, a printing area is arranged between the first front traction roller and the second front traction roller, and the surface tension of paper in the front printing area is ensured through two tractions; the front tension detection assembly is used for detecting the tension of the surface of the paper entering the front printing area so as to adjust the traction force of the first front traction roller and the second front traction roller and maintain the tension of the front printing area in a constant area.
Furthermore, a printing interval is arranged between the first reverse side traction roller and the second reverse side traction roller, and the surface tension of paper in the reverse side printing interval is ensured through two tractions; the reverse side tension detection assembly is used for detecting the tension of the surface of the paper entering the reverse side printing interval so as to adjust the traction force of the first reverse side traction roller and the second reverse side traction roller and maintain the tension of the reverse side printing interval in a constant interval.
Further, the first front traction roller is driven by a stepping motor, and the second front traction roller is driven by a stepping motor.
Further, the first reverse side traction roller is driven by a stepping motor, and the second reverse side traction roller is driven by a stepping motor.
Furthermore, the front deviation rectifying module is arranged on one side, close to the unreeling unit, in the printing unit, and the back deviation rectifying module is arranged on one side, close to the reeling unit, in the printing unit.
Furthermore, the front printing module is located above the front deviation rectifying module, and the back printing module is located above the back deviation rectifying module.
Furthermore, the front drying module and the back drying module are both arranged between the front deviation rectifying module and the back deviation rectifying module, the front drying module is arranged close to the front deviation rectifying module, and the back drying module is arranged close to the back deviation rectifying module.
Further, still include the guide axis, the guide axis is a plurality of, the guide axis is used for guiding the paper way and moves towards.
The utility model has the following advantages: according to the double-sided printing device, the deviation rectifying unit is arranged, so that the accuracy of paper feeding is ensured; the optimal printing state of the paper and the accuracy of printing positioning are ensured by arranging the traction unit; by arranging the drying unit, the paper is dried immediately after printing, so that the paper is prevented from being broken in a high-speed paper feeding state.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a structural diagram of a duplex printing apparatus according to some embodiments of the present invention.
In the figure: 1. unreeling unit, 2, rolling unit, 3, the unit of rectifying, 4, printing unit, 5, drying unit, 6, traction unit, 31, the module of rectifying on the front, 32, the module of rectifying on the back, 41, the module of printing on the front, 42, the module of printing on the back, 51, the module of drying on the front, 52, the module of drying on the back, 61, the module of pulling on the front, 62, the module of pulling on the back, 611, first front carry over pinch rolls, 612, the second front carry over pinch rolls, 613, the tension detection subassembly on the front, 621, first back carry over pinch rolls, 622, the second back carry over pinch rolls, 623, the tension detection subassembly on the back.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a duplex printing apparatus in an embodiment of a first aspect of the present invention includes:
an unwinding unit 1 for unwinding a printing paper roll and detecting the paper stock;
a winding unit 2 for collecting printed paper and maintaining paper path tension;
a deviation rectifying unit 3 for rectifying deviation of the paper before entering the printing area;
a printing unit 4 for printing contents on a substrate sheet;
a drying unit 5 for drying the printed paper;
a drawing unit 6 for ensuring the paper surface tension in the printing section;
the unreeling unit 1 is arranged at the inlet end of the printing unit 4, the reeling unit 2 is arranged at the outlet end of the printing unit 4, and the deviation rectifying unit 3, the drying unit 5 and the traction unit 6 are arranged in the printing unit 4;
the deviation rectifying unit 3 comprises a front deviation rectifying module 31 for rectifying deviation of paper entering the front printing area and a back deviation rectifying module 32 for rectifying deviation of paper entering the back printing area;
the printing unit 4 comprises a front side printing module 41 for printing front side contents of paper and a back side printing module 42 for printing back side contents of paper;
the drying unit 5 comprises a front side drying module 51 for drying the front side content of the paper and a back side drying module 52 for drying the back side content of the paper;
the traction unit 6 comprises a front traction module 61 for ensuring the paper surface tension of a front printing section and a back traction module 62 for ensuring the paper surface tension of a back printing section;
the face-side pull module 61 includes a first face-side pull roll 611, a second face-side pull roll 612, and a face-side tension sensing assembly 613;
the reverse side pull module 62 includes a first reverse side pull roll 621, a second reverse side pull roll 622, and a reverse side tension sensing assembly 623.
In the foregoing embodiment, it should be noted that the working principle of the present embodiment is as follows: firstly, correcting the deviation of paper entering a printing interval to ensure printing positioning; then, the paper is ensured to be flat by controlling the paper tension in the printing interval; in addition, after printing, ink drying is carried out immediately to prevent the paper from breaking in the traction process; and similarly, before the paper printed on the front side enters the printing section on the back side, the paper is subjected to deviation correction, then the tension of the printing section is controlled by traction to ensure that the printed paper is flat, and finally the paper is dried and then wound.
The technical effects achieved by the above embodiment are as follows: according to the double-sided printing device, the deviation rectifying unit 3 is arranged, so that the accuracy of paper feeding is guaranteed; the optimal printing state of the paper and the accuracy of printing positioning are ensured by arranging the traction unit 6; by arranging the drying unit 5, the paper is dried immediately after printing, so that the paper is prevented from being broken in a high-speed paper feeding state.
Alternatively, as shown in FIG. 1, in some embodiments, the front side tractor module 61 is located between the front side deskew module 31 and the front side print module 41, and the back side tractor module 62 is located between the back side deskew module 32 and the back side print module 42.
Alternatively, as shown in fig. 1, in some embodiments, a printing zone is between the first front-side drawing roller 611 and the second front-side drawing roller 612, and the paper surface tension of the front-side printing zone is ensured by two draws; the front tension detecting assembly 613 is used for detecting the tension of the surface of the paper entering the front printing zone to adjust the magnitude of the traction of the first front traction roller 611 and the second front traction roller 612, so that the tension of the front printing zone is maintained in a constant zone.
Alternatively, as shown in fig. 1, in some embodiments, a printing zone is formed between the first reverse drawing roller 621 and the second reverse drawing roller 622, and the paper surface tension of the reverse printing zone is ensured by two draws; the reverse tension detecting unit 623 is configured to detect a tension of the surface of the paper entering the reverse printing zone, so as to adjust the magnitudes of the traction forces of the first reverse traction roller 621 and the second reverse traction roller 622, so that the tension of the reverse printing zone is maintained in a constant zone.
The beneficial effects of the above alternative embodiment are: the paper in the front side/back side printing interval is matched with two tractions to detect the tension to ensure the tension of the paper surface, thereby ensuring the best printing state of the paper and the accuracy of printing positioning.
Alternatively, as shown in fig. 1, in some embodiments, first front side pull roll 611 is driven by a stepper motor and second front side pull roll 612 is driven by a stepper motor.
In the above optional embodiment, it should be noted that, in the working process, the first front traction roller 611 and the second front traction roller 612 are driven by the stepping motor to pull the paper in the printing section to move and form a certain paper tension, in order to prevent the printing effect from being affected by inaccurate printing positioning due to tearing or undersize of the paper caused by too large tension in the printing section, the front tension detecting component 613 feeds the paper tension entering the front printing section back to the control system in real time, and the control system adjusts the rotation speed of the stepping motor driving the first front traction roller 611 and the second front traction roller 612 according to a preset printing paper tension parameter, so as to increase or decrease the paper tension in the printing section.
Alternatively, as shown in fig. 1, in some embodiments, the first reverse side pull roll 621 is driven by a stepper motor and the second reverse side pull roll 622 is driven by a stepper motor.
In the above optional embodiment, it should be noted that, in the working process, the first reverse side traction roller 621 and the second reverse side traction roller 622 are driven by the stepping motor to pull the paper in the printing interval to move and form a certain paper tension, in order to prevent the printing effect from being affected by inaccurate printing positioning due to tearing or undersize of the paper caused by too large tension in the printing interval, the reverse side tension detecting component 623 feeds back the paper tension entering the reverse side printing interval to the control system in real time, and the control system adjusts the rotation speed of the stepping motor driving the first reverse side traction roller 621 and the second reverse side traction roller 622 according to a preset printing paper tension parameter of the system, so as to increase or decrease the paper tension in the printing interval.
Optionally, as shown in fig. 1, in some embodiments, the front surface deviation rectifying module 31 is disposed at a side of the printing unit 4 close to the unwinding unit 1, and the back surface deviation rectifying module 32 is disposed at a side of the printing unit 4 close to the winding unit 2.
The beneficial effects of the above alternative embodiment are: the paper entering the front side/back side printing interval is subjected to deviation correction, so that the accuracy of paper feeding is ensured.
Alternatively, as shown in fig. 1, in some embodiments, the front side printing module 41 is located above the front side rectification module 31, and the back side printing module 42 is located above the back side rectification module 32.
Optionally, as shown in fig. 1, in some embodiments, the front drying module 51 and the back drying module 52 are both disposed between the front deviation rectifying module 31 and the back deviation rectifying module 32, the front drying module 51 is disposed near the front deviation rectifying module 31, and the back drying module 52 is disposed near the back deviation rectifying module 32.
The beneficial effects of the above alternative embodiment are: the paper printed on the front side is dried immediately, so that the printing quality is guaranteed, the influence on the reverse side during printing is avoided, the paper printed on the reverse side is dried immediately, the printing quality is guaranteed, and the paper is dried immediately after printing, so that the paper is prevented from being broken in a high-speed paper feeding state.
Optionally, as shown in fig. 1, in some embodiments, the printing apparatus further includes a plurality of guide shafts, and the guide shafts are used for guiding the paper path, and it should be particularly noted that the guide shafts in the front/back printing section also have a function of supporting the printing paper so that the paper feeding direction is perpendicular to the printing direction of the printing unit.
In the working process, paper is firstly input to the front correction module 31 through the unwinding unit 1, and then sequentially passes through the front tension detection assembly 613, the first front traction roller 611 and the second front traction roller 612, a plurality of guide shafts are arranged between the first front traction roller 611 and the second front traction roller 612, and the front printing module 41 is positioned above the plurality of guide shafts between the first front traction roller 611 and the second front traction roller 612; then, the back side printing module 42 is wound to the back side deviation rectifying module 32 after passing through the front side drying module 51, and then enters the back side drying module 52 after sequentially passing through the back side tension detecting assembly 623, the first back side traction roller 621 and the second back side traction roller 622, a plurality of guide shafts are arranged between the first back side traction roller 621 and the second back side traction roller 622, and the back side printing module 42 is positioned above the plurality of guide shafts between the first back side traction roller 621 and the second back side traction roller 622; the sheet output via the reverse side drying module 52 is output via the take-up unit 2.
The control system is used for controlling the work of each functional module, and the control circuit adopted by the control system for controlling each unit is a mature circuit connection relation in the prior art.
As can be seen from the above embodiments, the present device has the following advantages:
1. the paper entering the front side/back side printing interval is subjected to deviation correction, so that the accuracy of paper feeding is ensured;
2. the paper in the front side/back side printing interval is matched with two tractions to detect the tension to ensure the tension of the paper surface, thereby ensuring the optimal printing state of the paper and the accuracy of printing positioning;
3. the paper printed on the front side is dried immediately, so that the printing quality is guaranteed, the influence on the reverse side printing is avoided, the paper printed on the reverse side is dried immediately, the printing quality is guaranteed, and the paper is dried immediately after printing, so that the paper is prevented from being broken in a high-speed paper feeding state;
4. the printing of the front side and the reverse side is carried out in the correction, the traction and the drying respectively and independently, thereby avoiding mutual interference.
Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.
Claims (10)
1. A duplex printing apparatus, comprising:
the unwinding unit (1) is used for unwinding the printing paper roll and detecting the paper stock;
a winding unit (2) for collecting printed paper and maintaining paper path tension;
a deviation rectifying unit (3) for rectifying deviation of the paper before entering the printing area;
a printing unit (4) for printing the content on the substrate sheet;
a drying unit (5) for drying the printed paper;
a drawing unit (6) for ensuring the paper surface tension in the printing zone;
the unreeling unit (1) is arranged at the inlet end of the printing unit (4), the reeling unit (2) is arranged at the outlet end of the printing unit (4), and the deviation rectifying unit (3), the drying unit (5) and the traction unit (6) are arranged in the printing unit (4);
the deviation rectifying unit (3) comprises a front deviation rectifying module (31) for rectifying deviation of paper entering the front printing area and a back deviation rectifying module (32) for rectifying deviation of paper entering the back printing area;
the printing unit (4) comprises a front side printing module (41) for printing front side contents of paper and a back side printing module (42) for printing back side contents of paper;
the drying unit (5) comprises a front side drying module (51) for drying the front side content of the paper and a back side drying module (52) for drying the back side content of the paper;
the traction unit (6) comprises a front traction module (61) used for ensuring the paper surface tension of a front printing section and a back traction module (62) used for ensuring the paper surface tension of a back printing section;
the face-side pull module (61) comprises a first face-side pull roll (611), a second face-side pull roll (612), and a face-side tension sensing assembly (613);
the reverse side traction module (62) comprises a first reverse side traction roller (621), a second reverse side traction roller (622) and a reverse side tension detection assembly (623).
2. A duplex printing apparatus according to claim 1, wherein the front side tractor module (61) is located between the front side deviation rectifying module (31) and the front side printing module (41), and the back side tractor module (62) is located between the back side deviation rectifying module (32) and the back side printing module (42).
3. A duplex printing apparatus according to claim 2, wherein a printing zone is provided between said first front side drawing roller (611) and said second front side drawing roller (612), and a paper surface tension of the front side printing zone is ensured by two draws; the front tension detection assembly (613) is used for detecting the tension of the surface of the paper entering the front printing section so as to adjust the traction force of the first front traction roller (611) and the second front traction roller (612) and maintain the tension of the front printing section in a constant section.
4. A duplex printing apparatus according to claim 3, wherein a printing zone is provided between said first reverse drawing roller (621) and said second reverse drawing roller (622), and a paper surface tension in the reverse printing zone is ensured by two draws; the reverse tension detection assembly (623) is used for detecting the tension of the surface of the paper entering the reverse printing interval so as to adjust the traction force of the first reverse traction roller (621) and the second reverse traction roller (622) and maintain the tension of the reverse printing interval in a constant interval.
5. A duplex printing apparatus according to claim 4, wherein the first front side pull roll (611) is driven by a stepper motor and the second front side pull roll (612) is driven by a stepper motor.
6. A duplex printing apparatus according to claim 5, wherein the first reverse side drawing roller (621) is driven by a stepping motor, and the second reverse side drawing roller (622) is driven by a stepping motor.
7. A duplex printing apparatus according to claim 6, wherein the front side skew correction module (31) is disposed at a side of the printing unit (4) close to the unwinding unit (1), and the back side skew correction module (32) is disposed at a side of the printing unit (4) close to the winding unit (2).
8. A duplex printing apparatus according to claim 7, wherein the front side printing module (41) is located above the front side rectification module (31), and the back side printing module (42) is located above the back side rectification module (32).
9. A duplex printing apparatus according to claim 8, wherein the front side drying module (51) and the back side drying module (52) are both disposed between the front side deviation rectifying module (31) and the back side deviation rectifying module (32), the front side drying module (51) is disposed near the front side deviation rectifying module (31), and the back side drying module (52) is disposed near the back side deviation rectifying module (32).
10. The duplex printing apparatus according to claim 9, further comprising a plurality of guide shafts for guiding the paper path direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122706907.8U CN216330934U (en) | 2021-11-05 | 2021-11-05 | Double-sided printing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122706907.8U CN216330934U (en) | 2021-11-05 | 2021-11-05 | Double-sided printing device |
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| CN216330934U true CN216330934U (en) | 2022-04-19 |
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| CN202122706907.8U Active CN216330934U (en) | 2021-11-05 | 2021-11-05 | Double-sided printing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027091A1 (en) * | 2022-08-02 | 2024-02-08 | 广州精陶机电设备有限公司 | Ink-jet printing system having external drying function |
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2021
- 2021-11-05 CN CN202122706907.8U patent/CN216330934U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027091A1 (en) * | 2022-08-02 | 2024-02-08 | 广州精陶机电设备有限公司 | Ink-jet printing system having external drying function |
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