CN211251703U - Digital printing device - Google Patents
Digital printing device Download PDFInfo
- Publication number
- CN211251703U CN211251703U CN201922108649.6U CN201922108649U CN211251703U CN 211251703 U CN211251703 U CN 211251703U CN 201922108649 U CN201922108649 U CN 201922108649U CN 211251703 U CN211251703 U CN 211251703U
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- unit
- printing
- glazing
- film
- coating film
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- 238000007639 printing Methods 0.000 title claims abstract description 164
- 239000002131 composite material Substances 0.000 claims abstract description 52
- 238000000576 coating method Methods 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 39
- 238000001035 drying Methods 0.000 claims abstract description 34
- 239000007921 spray Substances 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000012546 transfer Methods 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 18
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 13
- 150000001875 compounds Chemical group 0.000 claims abstract description 10
- 238000013329 compounding Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 abstract description 41
- 238000000034 method Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000295 complement effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 17
- 238000005507 spraying Methods 0.000 description 13
- 238000013519 translation Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000000643 oven drying Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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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
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4075—Tape printers; Label printers
Abstract
The utility model provides a digital printing device, which is provided with a pre-coating film which is fed by a film unreeling device and is coiled by a film coiling device after passing through a spray printing unit, a gluing unit, a composite unit, a drying device and a stripping unit; the pre-coating film and the printing stock are subjected to pattern transfer in the composite unit, the printing stock is supplied by the unwinding mechanism, and the printing stock passes through the glazing unit and the drying device after being separated from the pre-coating film in the peeling unit and is finally wound by the winding mechanism; wherein, should dispose first encoder on the route of the membrane of precoating, compound unit one side and be equipped with the counterpoint detection device, glazing unit one side is equipped with glazing detection device. The utility model discloses to the defect that current printing technology exists, provide a comprehensive printing device and process flow, can satisfy the demand of various printing technology, realize that the advantage and the disadvantage of every kind of technology are complementary, guarantee product quality, improve production efficiency.
Description
Technical Field
The utility model relates to a digital printing technical field refers in particular to a digital printing device.
Background
With the development of big data and the progress of mobile terminals, variable two-dimensional codes become important means for commodity information storage and anti-counterfeiting, especially under an intelligent network, one-object-one-code is needed, the variable two-dimensional codes are used on cigarette packets and medicine boxes in large batch at present, and a foundation is provided for intelligent logistics and sales management and control, so that digital jet printing becomes a new printing mode and gradually appears in printing enterprises.
At present, with the development of society, personalized printing or small-batch and multi-variety printing pieces are more and more, the traditional printing modes such as offset printing, gravure printing, silk screen printing and the like are challenged due to the problems of long production conversion time, high plate making cost and the like, and the digital printing mode has the characteristic that each printing plate can be changed because a printing plate roller is not required to be manufactured, and is the best choice for the small-batch and multi-variety printing pieces. However, the digital printing method has a certain problem, which is mainly reflected in that the requirement on the printing stock is high, because the jet printing ink cannot adapt to the surfaces of all the printing stocks, and the jet nozzle for jet printing is very precise, and when the jet printing is carried out at a short distance from the printing stock and moves at a high speed, dust on the printing stock or the printing stock is easy to contact with the jet nozzle frequently, so that the normal jet printing cannot be realized.
Disclosure of Invention
The utility model aims to provide a to existing technical situation, adopt indirect formula and the digital printing device of a comprehensive new technology that combination formula formed.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a digital printing device is provided with a pre-coating film which is fed by a film unreeling device and is coiled by a film reeling device after passing through a jet printing unit, a gluing unit, a compounding unit, a drying device and a stripping unit; the pre-coating film and the printing stock are subjected to pattern transfer in the composite unit, the printing stock is supplied by the unwinding mechanism, and the printing stock passes through the glazing unit and the drying device after being separated from the pre-coating film in the peeling unit and is finally wound by the winding mechanism; wherein, should dispose first encoder on the route of the membrane of precoating, compound unit one side and be equipped with the counterpoint detection device, glazing unit one side is equipped with glazing detection device.
In the scheme, the flexographic printing units are additionally arranged between the film unreeling device and the spray printing units, and the number of the corresponding flexographic printing units can be configured as required, so that the requirements of packaging production on spot color printing and field printing are met.
Furthermore, the jet printing unit consists of a plurality of nozzles and is provided with a second encoder and a UV dryer.
Furthermore, the shower nozzle is arranged into a plurality of rows, every row of shower nozzle all links with the linkage of second encoder and counterpoint detection device's signal, every row of shower nozzle all disposes a set of UV desicator, can spout different colours or the same colour of seal according to spouting every shower nozzle of seal colour, counterpoint detection device's detected signal is used for the time that begins to spout seal in step, and the frequency of seal is spouted in the control of second encoder, and the UV desicator can dry fast after spouting the seal and accomplishing.
Furthermore, the gluing unit comprises a local glue spraying device and a coating device, and the coating device acts on the composite surface of the pre-coated film or the printing stock to meet the positioning glue spraying transfer or the gluing transfer of water-based glue and full-page glue.
Furthermore, the glazing unit comprises a local glazing device and a full-plate glazing device, and the glazing detection device is linked with the local glazing device to meet local positioning glazing or full-plate glazing.
Preferably, the first encoder is connected with a composite roller in the composite unit, the alignment detection device is combined to detect a color code of a pattern on a printing stock, and the required pulse number is obtained by combining the distance between a spray head needing overprinting and the composite roller, so that the positioning transfer of the pattern is realized.
The utility model has the advantages that: the utility model adopts digital printing as a process foundation, digital printing pictures and texts are carried by pre-coating film materials, and then a comprehensive process flow capable of applying the digital printing pictures and texts on various printing stocks is formed by a composite transfer process, so that the process flow is suitable for the requirements of various printing stock materials; because the thickness of the precoated film is even compared with other printing stocks, the precoated film is dry, static and clean, and has less dust, thereby being beneficial to optimizing the environment near the spray head, reducing the ink drop point error caused by the change of the distance between the spray head and the surface of the printing stock, reducing the damage of the dust to the spray head, and improving the stability of the spray printing system. By carrying digital printing pictures and texts through the pre-coating film, the picture and text printing is realized on other types of printing stocks through a composite transfer process, which is beneficial to the optimal selection of the printing ink of the jet printing system and reduces the design complexity of the ink jet system.
The utility model discloses an equipment can select full version on the spot printing, full version pattern transfer, local printing pattern transfer, full version glazing, local location processes such as glazing as required, has the diversity selection, and guarantees the uniformity of printing position, the accurate nature that the pattern location shifted, spout the smoothness nature of seal process and the stability of whole operation process.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
referring to fig. 1, a schematic structural diagram of a preferred embodiment of the present invention is shown, the present invention relates to a digital printing apparatus, which includes a pre-coating film 2 supplied by a film unwinding device 1, the pre-coating film 2 being wound by a film winding device 13 after passing through a spray printing unit, a gluing unit, a compounding unit 18, a drying device 11, and a peeling unit 12; the pre-coating film 2 and the printing stock 8 are subjected to pattern transfer in the compounding unit 18, the printing stock 8 is supplied by the unwinding mechanism 9, and the printing stock 8 passes through the glazing unit and the drying device 15 after being separated from the pre-coating film 2 in the peeling unit 12 and is finally wound by the winding mechanism 17.
Wherein, the membrane 2 of precoating is for having the PET film of precoating transfer layer and printing adaptation layer, should dispose first encoder 10 on the route of the line of precoating membrane 2, and first encoder 10 is connected with the compound roller among the compound unit 18, compound unit 18 one side is equipped with counterpoint detection device 7, can detect the pattern color mark on the stock, specifically, counterpoint detection device 7 and compound unit 18 the distance between the compound roller, must be greater than the distance between the compound roller of jet printing unit to compound unit 18, just so can guarantee that the pattern on the stock 8 is detected the back, the jet printing unit carries out the shape and the position of corresponding pattern according to the instruction and spouts the seal.
The alignment detection device 7 can adopt a camera, the image is shot and transmitted to the system through the alignment detection device 7, the system analyzes the shape, the position and the size of the pattern, the installation position of the alignment detection device 7 and the tangent line of the composite roller of the composite unit 18 are fixed and invariable, therefore, the system only needs to generate corresponding pattern information needing overprinting according to the size of the pattern to the spray printing unit, when the alignment detection device 7 detects the pattern, the first encoder 10 starts to calculate the pulse number, the first group of nozzles of the spray printing unit are M pulses away from the tangent line of the composite roller, because N is more than or equal to M, as the pattern is usually overlapped by multiple colors, and the size of the pattern on the printing stock 8 is different, the spray printing can be completed by different nozzles in the spray printing unit in sequence, therefore, the system refers to the pulse number calculated by the first encoder 10 according to the overprinting information such as the shape and the position of, and the spray heads at corresponding positions in the spray printing units are controlled to carry out independent or linked spray printing, so that the patterns can be accurately aligned and superposed with the patterns on the printing stock 8 after the pattern spray printing is finished, and the pattern positioning transfer is realized.
A glazing detection device 14 is arranged on one side of the glazing unit and can detect the local glazing position, and the flexographic printing units 3 are additionally arranged between the film unreeling device 1 and the jet printing unit, so that the number of the corresponding flexographic printing units 3 can be configured according to requirements, and the method is mainly used for printing on the spot.
The film unwinding device 1 is provided with the translation frame 101, so that the film unwinding device 1 can transversely move left and right, different film rolls can be centered, and the consistency of the transverse position of the pre-coated film 2 is ensured.
The jet printing unit is composed of a plurality of nozzles 4 and is provided with a second encoder 41 and a UV dryer 43. The nozzles 4 are arranged in a plurality of rows, each row of nozzles 4 is linked with signals of a second encoder 41 and an alignment detection device 7, each row of nozzles 4 is provided with a group of UV driers 43, each nozzle can jet different colors or the same color according to the jet printing color, the system can delay N-M pulse as the time of jet printing of a first color nozzle by the relation between the position and a distance N of a composite point and a distance M between a jet printing unit and the composite point according to the signals of the alignment detection device 7, the spacing between the rest color nozzles is fixed, the jet printing timing sequence is determined by the distance represented by each pulse of the second encoder 41 and the fixed spacing between the second encoder 41 and the first color, the jet printing graphics and text of the color nozzles are aligned by taking the principle of jet printing graphics of the color nozzles of the second row as an example, the spacing between the first row of nozzles and the second row of nozzles is set to be L, the distance represented by each pulse of the second encoder 41 is set to be d, the delay pulse number of the second row of jet printing is set to be L/d, the UV dryer 43 can rapidly dry after the inkjet printing is completed.
The gluing unit comprises a local glue spraying device 5 and a coating device 6, the coating device 6 acts on the composite surface of the pre-coated film 2 or the printing stock 8, a material ejecting cylinder is arranged on a guide roller of the pre-coated film 2 and the printing stock 8 close to the coating device 6, when the pre-coated film 2 needs full-plate coating gluing according to the coating process requirement, the material ejecting cylinder of the pre-coated film 2 ejects the film to be matched and connected with the coating device 6, the material ejecting cylinder of the printing stock 8 does not act, and vice versa, and the random switching of positioning glue spraying transfer or water-based glue and full-plate glue gluing transfer can be met.
The glazing unit comprises a local glazing device 19 and a full-plate glazing device 16, a glazing detection device 14 is linked with the local glazing device 19, a lifting ink box is arranged below the full-plate glazing device 16, and when full-plate glazing is needed, the ink box is lifted to a position to be in contact with a printing stock 8, so that switching of local positioning glazing or full-plate glazing is met.
The drying device 11 may be UV lamp drying, infrared hot air drying or oven drying.
The drying device 15 comprises UV lamp drying and oven drying, and is switched according to the process requirements, if the glazing ink is UV gloss oil, the UV lamp drying is adopted, and if the water-based full-plate water-based glazing is adopted, the oven drying is adopted.
Example 1:
Example 2:
Example 3:
Example 4:
Example 5:
Of course, the above illustration is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so all equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A digital printing apparatus, characterized by: the device is characterized in that a pre-coating film (2) is fed by a film unreeling device (1), and the pre-coating film (2) is coiled by a film coiling device (13) after passing through a jet printing unit, a gluing unit, a compounding unit (18), a drying device (11) and a stripping unit (12); the pre-coating film (2) and the printing stock (8) are subjected to pattern transfer in the composite unit (18), the printing stock (8) is fed by the unwinding mechanism (9), and the printing stock (8) passes through the glazing unit and the drying device (15) after being separated from the pre-coating film (2) in the peeling unit (12), and is finally wound by the winding mechanism (17); wherein, a first encoder (10) should be arranged on the travelling route of the pre-coating film (2), a contraposition detection device (7) is arranged on one side of the composite unit (18), and a glazing detection device (14) is arranged on one side of the glazing unit.
2. A digital printing apparatus as claimed in claim 1, wherein: and a flexographic printing unit (3) is additionally arranged between the film unreeling device (1) and the jet printing unit.
3. A digital printing apparatus according to claim 1 or 2, wherein: the jet printing unit consists of a plurality of nozzles (4) and is provided with a second encoder (41) and a UV dryer (43).
4. A digital printing apparatus as claimed in claim 3, wherein: the spray heads (4) are arranged in a plurality of rows, each row of spray heads (4) is linked with the second encoder (41) and signals of the alignment detection device (7), and each row of spray heads (4) is provided with a group of UV driers (43).
5. A digital printing apparatus according to claim 1 or 2, wherein: the gluing unit comprises a local gluing device (5) and a coating device (6), and the coating device (6) acts on the compound surface of the pre-coating film (2) or the printing stock (8).
6. A digital printing apparatus according to claim 1 or 2, wherein: the glazing unit comprises a local glazing device (19) and a full-page glazing device (16), and the glazing detection device (14) is linked with the local glazing device (19).
7. A digital printing apparatus as claimed in claim 1, wherein: the first encoder (10) is connected to a compounding roller in a compounding unit (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922108649.6U CN211251703U (en) | 2019-11-29 | 2019-11-29 | Digital printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922108649.6U CN211251703U (en) | 2019-11-29 | 2019-11-29 | Digital printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211251703U true CN211251703U (en) | 2020-08-14 |
Family
ID=71984579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922108649.6U Active CN211251703U (en) | 2019-11-29 | 2019-11-29 | Digital printing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211251703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901219A (en) * | 2019-11-29 | 2020-03-24 | 汕头东风印刷股份有限公司 | Digital printing device |
-
2019
- 2019-11-29 CN CN201922108649.6U patent/CN211251703U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901219A (en) * | 2019-11-29 | 2020-03-24 | 汕头东风印刷股份有限公司 | Digital printing device |
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| CP01 | Change in the name or title of a patent holder |
Address after: 515000 block A-F, 4a2-2, 2m4, 13-02, Jinyuan Industrial City, Chaoshan Road, Shantou City, Guangdong Province Patentee after: Guangdong Dongfeng New Materials Group Co.,Ltd. Address before: 515000 block A-F, 4a2-2, 2m4, 13-02, Jinyuan Industrial City, Chaoshan Road, Shantou City, Guangdong Province Patentee before: SHANTOU DONGFENG PRINTING Co.,Ltd. |