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CN110901219A - Digital printing device - Google Patents

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Publication number
CN110901219A
CN110901219A CN201911203430.2A CN201911203430A CN110901219A CN 110901219 A CN110901219 A CN 110901219A CN 201911203430 A CN201911203430 A CN 201911203430A CN 110901219 A CN110901219 A CN 110901219A
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CN
China
Prior art keywords
unit
printing
glazing
coating film
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911203430.2A
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Chinese (zh)
Inventor
谢名优
赵希华
王培学
纪树滨
王培法
辛滨
李春花
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shantou Dongfeng Printing Co Ltd
Original Assignee
Shantou Dongfeng Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shantou Dongfeng Printing Co Ltd filed Critical Shantou Dongfeng Printing Co Ltd
Priority to CN201911203430.2A priority Critical patent/CN110901219A/en
Publication of CN110901219A publication Critical patent/CN110901219A/en
Pending legal-status Critical Current

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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
    • B41J3/54—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
    • B41J3/546—Combination of different types, e.g. using a thermal transfer head and an inkjet print head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
    • B41F16/0093—Attachments or auxiliary devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/045—Drying sheets, e.g. between two printing stations by radiation
    • B41F23/0453—Drying sheets, e.g. between two printing stations by radiation by ultraviolet dryers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/08—Print finishing devices, e.g. for glossing prints

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Ink Jet (AREA)

Abstract

本发明提供一种数字印刷装置，具有预涂膜由膜放卷装置供料，预涂膜经过喷印单元、上胶单元、复合单元、烘干装置、剥离单元后由膜收卷装置收卷；预涂膜在复合单元与承印物进行图案转移，承印物由放卷机构供料，承印物在剥离单元与预涂膜分离后经过上光单元及干燥装置，最后由收卷机构收卷；其中，预涂膜的行经路线上应当配置有第一编码器，复合单元一侧设有对位检测装置，上光单元一侧设有上光检测装置。本发明针对现有印刷工艺所存在的缺陷，提供一种综合性印刷装置及工艺流程，可以满足各种印刷工艺的需求，实现每种工艺的优缺点互补，保证产品质量，提高生产效率。

Figure 201911203430

The invention provides a digital printing device. The pre-coating film is supplied by a film unwinding device, and the pre-coating film is wound by the film winding device after passing through a spray printing unit, a gluing unit, a compounding unit, a drying device and a peeling unit. ;The pattern transfer of the pre-coating film and the substrate is carried out in the composite unit, the substrate is fed by the unwinding mechanism, the substrate is separated from the pre-coating film by the peeling unit and passes through the glazing unit and the drying device, and finally is wound by the winding mechanism; Wherein, a first encoder should be arranged on the traveling route of the pre-coating film, an alignment detection device should be arranged on one side of the composite unit, and a glazing detection device should be arranged on one side of the glazing unit. Aiming at the defects existing in the existing printing process, the invention provides a comprehensive printing device and process flow, which can meet the needs of various printing processes, realize the complementarity of advantages and disadvantages of each process, ensure product quality, and improve production efficiency.

Figure 201911203430

Description

Digital printing device
Technical Field
The invention relates to the technical field of digital printing, 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 invention aims to provide a digital printing device which is formed by indirect and combined type and integrates a new process aiming at the prior technical situation.
In order to achieve the purpose, the invention 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 invention has the beneficial effects that: the invention 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 requirements of various printing stock materials are met; 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 equipment can select the processes of full-plate on-site printing, full-plate pattern transfer, local printing pattern transfer, full-plate glazing, local positioning glazing and the like according to needs, has diversified selections, and ensures the consistency of printing positions, the accuracy of pattern positioning transfer, the smoothness of a jet printing process and the stability of the 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, in which the present invention is a digital printing apparatus, a pre-coating film 2 is fed from a film unwinding device 1, and the pre-coating film 2 is wound by a film winding device 13 after passing through a jet 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:
membrane 2 of precoating steadily expandes through membrane unwinding device 1, and translation about the adjustment is precoated membrane 2 lateral position centering according to the width of precoating membrane 2 to membrane unwinding device 1, and membrane 2 of precoating is through spouting the seal unit, and the seal is spouted to the shower nozzle of each row, and the second encoder 41 control corresponds spouting the seal frequency of shower nozzle, and the membrane 2 of precoating can directly carry out the UV drying after spouting the seal through every row of shower nozzle. For local pattern transfer, the glue spraying device 5 is used for spraying local UV glue on the pattern, the precoated film after glue spraying enters a composite roller of a composite unit 18 to be compounded with a printing stock 8, in the process, the printing stock 8 needs to utilize an alignment detection device 7 to detect the pattern or color code on the printing stock, a coaxial first encoder 10 on a composite roller shaft head is utilized to count the pulse number required by the distance between the spray printing unit needing overprinting and the composite roller and calculate the time for starting spray printing of a nozzle unit, so that the pattern on the precoated film 2 can be aligned with the pattern on the printing stock 8 at the composite roller to achieve the positioning composite transfer effect, then the composite roll of the precoated film 2 and the printing stock 8 enters a drying device 11, the drying device 11 only needs to start a UV lamp source to cure the pattern on the printing stock 8, so that the printed pattern on the precoated film 2 is transferred onto the printing stock 8, then directly enters a stripping unit 12 for stripping, and the pre-coated film 2 after stripping enters a film winding device 13 for winding; and after the printed material 8 with patterns is detected by the pattern position of the glazing detection device 14, local glazing is carried out by the local glazing device 19, then the printed material is dried by the drying device 15 by turning on the UV lamp, and finally the rolling is completed by the rolling mechanism 17.
Example 2:
membrane 2 of precoating steadily expandes through membrane unwinding device 1, and translation about the adjustment is precoated membrane 2 lateral position centering according to the width of precoating membrane 2 to membrane unwinding device 1, and membrane 2 of precoating is through spouting the seal unit, and the seal is spouted to the shower nozzle of each row, and the second encoder 41 control corresponds spouting the seal frequency of shower nozzle, and the membrane 2 of precoating can directly carry out the UV drying after spouting the seal through every row of shower nozzle. For full pattern transfer, full water-based gluing is carried out on a pre-coating film 2 by a coating device 6, the pre-coating film 2 after being glued enters a composite roller of a composite unit 18 to be compounded with a printing stock 8, in the process, the printing stock 8 needs to utilize an alignment detection device 7 to detect patterns or color codes on the printing stock, a coaxial first encoder 10 on a shaft head of the composite roller is utilized to count the number of pulses required by the distance between a spray printing unit needing overprinting and the composite roller and calculate the time of starting spray printing by a nozzle unit, so that the patterns on the pre-coating film 2 can be aligned with the patterns on the printing stock 8 at the composite roller to achieve a composite transfer effect, then the composite roll of the pre-coating film 2 and the printing stock 8 enters a drying device 11, the drying device 11 needs to open a hot air oven to cure the patterns on the printing stock 8, so that the printing patterns on the pre-coating film 2 are, then directly enters a stripping unit 12 for stripping, and the pre-coated film 2 after stripping enters a film winding device 13 for winding; and the printing stock 8 with patterns is directly subjected to full-plate glazing through a full-plate glazing device 16, is dried by opening an oven through a drying device 15, and is finally wound in a winding mechanism 17.
Example 3:
membrane 2 of precoating steadily expandes through membrane unwinding device 1, membrane unwinding device 1 is according to the width of the membrane 2 of precoating, carry out horizontal translation about through translation frame 101, the adjustment is precoated 2 horizontal position pairs of membrane, the membrane 2 of precoating is through flexographic printing unit 3, carry out printing on the spot, then the membrane 2 of precoating is through spouting the seal unit, the shower nozzle of each row spouts the seal, the control of second encoder 41 corresponds the spout seal frequency of shower nozzle, the membrane 2 of precoating can directly carry out the UV drying after spouting the seal through every row of shower nozzle. For full pattern transfer, full water-based gluing is carried out on a pre-coating film 2 by a coating device 6, the pre-coating film 2 after being glued enters a composite roller of a composite unit 18 to be compounded with a printing stock 8, in the process, the printing stock 8 needs to utilize an alignment detection device 7 to detect patterns or color codes on the printing stock, a coaxial first encoder 10 on a shaft head of the composite roller is utilized to count the number of pulses required by the distance between a spray printing unit needing overprinting and the composite roller and calculate the time of starting spray printing by a nozzle unit, so that the patterns on the pre-coating film 2 can be aligned with the patterns on the printing stock 8 at the composite roller to achieve a composite transfer effect, then the composite roll of the pre-coating film 2 and the printing stock 8 enters a drying device 11, the drying device 11 needs to open a hot air oven to cure the patterns on the printing stock 8, so that the printing patterns on the pre-coating film 2 are, then directly enters a stripping unit 12 for stripping, and the pre-coated film 2 after stripping enters a film winding device 13 for winding; and the printing stock 8 with patterns is directly subjected to full-plate glazing through a full-plate glazing device 16, is dried by opening an oven through a drying device 15, and is finally wound in a winding mechanism 17.
Example 4:
membrane 2 of precoating steadily expandes through membrane unwinding device 1, membrane unwinding device 1 is according to the width of the membrane 2 of precoating, carry out horizontal translation about through translation frame 101, the adjustment is precoated 2 horizontal position pairs of membrane, 2 membrane of precoating is through flexographic printing unit 3, carry out full version printing on the spot, then 2 membrane of precoating is through spouting the seal unit, the shower nozzle of each row spouts the seal, the spout seal frequency of the corresponding shower nozzle of second encoder 41 control, 2 membrane of precoating can directly carry out the UV drying after spouting the seal through every row of shower nozzle. For local pattern transfer, the glue spraying device 5 is used for spraying local UV glue on the pattern, the precoated film after glue spraying enters a composite roller of a composite unit 18 to be compounded with a printing stock 8, in the process, the printing stock 8 needs to utilize an alignment detection device 7 to detect the pattern or color code on the printing stock, a coaxial first encoder 10 on a composite roller shaft head is utilized to count the pulse number required by the distance between the spray printing unit needing overprinting and the composite roller and calculate the time for starting spray printing of a nozzle unit, so that the pattern on the precoated film 2 can be aligned with the pattern on the printing stock 8 at the composite roller to achieve the positioning composite transfer effect, then the composite roll of the precoated film 2 and the printing stock 8 enters a drying device 11, the drying device 11 only needs to start a UV lamp source to cure the pattern on the printing stock 8, so that the printed pattern on the precoated film 2 is transferred onto the printing stock 8, then directly enters a stripping unit 12 for stripping, and the pre-coated film 2 after stripping enters a film winding device 13 for winding; and the printing stock 8 with patterns is directly subjected to full-plate glazing through a full-plate glazing device 16, is dried by opening an oven through a drying device 15, and is finally wound in a winding mechanism 17.
Example 5:
membrane 2 of precoating steadily expandes through membrane unwinding device 1, and translation about the adjustment is precoated membrane 2 lateral position centering according to the width of precoating membrane 2 to membrane unwinding device 1, and membrane 2 of precoating is through spouting the seal unit, and the seal is spouted to the shower nozzle of each row, and the second encoder 41 control corresponds spouting the seal frequency of shower nozzle, and the membrane 2 of precoating can directly carry out the UV drying after spouting the seal through every row of shower nozzle. For local pattern transfer, the glue spraying device 5 is used for spraying local UV glue on the pattern, the precoated film after glue spraying enters a composite roller of a composite unit 18 to be compounded with a printing stock 8, in the process, the printing stock 8 needs to utilize an alignment detection device 7 to detect the pattern or color code on the printing stock, a coaxial first encoder 10 on a composite roller shaft head is utilized to count the pulse number required by the distance between the spray printing unit needing overprinting and the composite roller and calculate the time for starting spray printing of a nozzle unit, so that the pattern on the precoated film 2 can be aligned with the pattern on the printing stock 8 at the composite roller to achieve the positioning composite transfer effect, then the composite roll of the precoated film 2 and the printing stock 8 enters a drying device 11, the drying device 11 only needs to start a UV lamp source to cure the pattern on the printing stock 8, so that the printed pattern on the precoated film 2 is transferred onto the printing stock 8, then directly enters a stripping unit 12 for stripping, and the pre-coated film 2 after stripping enters a film winding device 13 for winding; and if the printing stock 8 with the pattern needs to be glazed in a full plate, directly glazing the full plate through the full plate glazing device 16, drying the printing stock by opening the oven through the drying device 15, and finally finishing rolling in the rolling mechanism 17.
It should be understood that the above-mentioned drawings are merely illustrative of the preferred embodiments of the present invention, and that the scope of the invention is not limited thereto.

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).
CN201911203430.2A 2019-11-29 2019-11-29 Digital printing device Pending CN110901219A (en)

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CN201911203430.2A CN110901219A (en) 2019-11-29 2019-11-29 Digital printing device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118906635A (en) * 2024-10-12 2024-11-08 广东东弘数码新材料有限公司 Transfer printing equipment and printing process method

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