WO2019037560A1 - Plate-forme d'impression pour équipement d'impression à jet d'encre - Google Patents

Plate-forme d'impression pour équipement d'impression à jet d'encre Download PDF

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Publication number
WO2019037560A1
WO2019037560A1 PCT/CN2018/095743 CN2018095743W WO2019037560A1 WO 2019037560 A1 WO2019037560 A1 WO 2019037560A1 CN 2018095743 W CN2018095743 W CN 2018095743W WO 2019037560 A1 WO2019037560 A1 WO 2019037560A1
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WO
WIPO (PCT)
Prior art keywords
platform
printing
printing platform
plane
concave
Prior art date
Application number
PCT/CN2018/095743
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English (en)
Chinese (zh)
Inventor
李支斌
Original Assignee
杭州专色数码科技有限公司
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
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Application filed by 杭州专色数码科技有限公司 filed Critical 杭州专色数码科技有限公司
Priority to ES18847818T priority Critical patent/ES2900498T3/es
Priority to EP18847818.4A priority patent/EP3575094B1/fr
Publication of WO2019037560A1 publication Critical patent/WO2019037560A1/fr

Links

Classifications

    • 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
    • B41J11/0085—Using suction for maintaining printing material flat
    • 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
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet

Definitions

  • the present invention relates to the field of printers, and more particularly to a media-supported printing and printing platform for an inkjet printing device.
  • inkjet printing can be printed on a variety of different media, such as various paper, polymer film media and film, all kinds of cloth, etc., is playing an increasingly important role.
  • Color inkjet has high requirements for color reproduction.
  • the printed medium controls the diffusion of ink droplets and absorbs ink by coating or treating the surface of the substrate.
  • the substrate will be deformed by the absorption of the ink, and local bulging will occur on the printing platform, which will affect the printing precision effect, and the heavy one will scratch. To the print head, causing expensive nozzle damage or scrapping of printed products.
  • the platform is arranged with a certain density of suction holes, which generates low pressure adsorption through the fan below the platform, as shown in Figure 1 and Figure 2.
  • the platform is equipped with some suction holes, and combined with some groove design to increase the suction area.
  • the groove design is generally based on the material selected for the platform. There are two types:
  • Injection molding plastic platform or casting mold metal platform generally can use some oblique or criss-crossing grooves to increase the suction area and increase the suction uniformity. As shown in Figure 3.
  • Extrusion profile platforms such as platforms for processing aluminum extrusion materials, may arrange some lateral grooves in the length direction of the extrusion.
  • the prior art defect since the water absorbing medium absorbs the ink, the substrate is caused to expand, and the medium is in the paper feeding direction (Y direction) due to the combination of the paper feeding wheel pushing and the winding direction of the paper feeding direction. Irregular vertical arching creates a drum that affects print quality. When the partial drum height is high, the print head is scratched and the screen is scrapped. The wrinkling and bulging in actual work is shown in Fig. 5 and Fig. 6. The position and height of the wrinkles are uncertain.
  • the present invention provides a printing platform structure capable of uniformly absorbing the bulging of the medium and significantly eliminating the upward arching of the medium. This completely prevents the media from squeezing and scratching the print head, and improves the image quality and printing results.
  • a printing platform is disposed between a paper feeding platform and a paper discharge platform, and a side of the printing platform contacting the printing medium is provided with a plurality of convex planes and a concave plane, the convex planes and The concave planes are staggered with each other along the X direction of the printing platform, and the convex plane and the concave plane straddle the Y direction of the printing platform; the lower concave plane is provided with an opening end (not prefabricated with a convexity) The structure of the plane height).
  • the printing platform located on the concave plane is provided with a suction hole.
  • the printing platform located on the convex plane is provided with a plurality of air suction holes.
  • the height difference H between the convex plane and the concave plane is greater than or equal to ⁇ E/(2N), ⁇ E is the length increased after the medium absorbs the ink, and N is the number of convex planes on the printing platform.
  • the height difference H between the convex plane and the concave plane is greater than or equal to 0.1 mm and less than or equal to 0.8 mm; and the lateral width of the concave plane is greater than 0.4 mm.
  • the concave plane at the paper feed end is closed, and the concave plane gradually increases in width along the paper discharge direction of the printing platform.
  • the printing platform is further provided with a length of a convex plane a, which starts from the paper feeding end, and the convex plane a is staggered with the convex plane of the printer platform.
  • a plurality of grooves or other auxiliary suction structures are formed on the convex plane and the concave plane of the printing platform.
  • the height of the highest portion of the paper discharge platform is less than the height of the convex plane of the printing platform or less than the height of the concave plane.
  • a guiding section B segment and a C segment are added between the paper feeding platform and the printing platform, and a guiding segment E segment is added between the paper discharging platform and the printing platform, and the height of the highest point of the BCE segment is smaller than printing.
  • the height of the concave plane of the platform is smaller than printing.
  • the printing platforms can be spliced to each other.
  • printing platform refers to a platform with a partial width corresponding to the width (Y direction) of the printing head, that is, the real-time spraying of the printing head when the printer is in operation.
  • the platform part corresponding to the ink.
  • main printing platform in the industry.
  • auxiliary paper feed platform at the front end of the printing platform (near the paper feed shaft); and an auxiliary paper output platform at the rear end of the printing platform (near the winding portion).
  • All of the raised planes extend longitudinally throughout the width of the platform (Y-direction), and all of the concave planes extend longitudinally throughout the width of the platform (Y-direction).
  • the concave plane there should be no transverse or (X-direction) ribs or other structures in the concave plane to affect the overall concave absorption and longitudinal motion of the medium. If the suction effect is enhanced, the arranged rib structure needs to be lower than the convex plane. Since the inkjet is generally multi-PASS superimposed, the amount of ink is gradually increased toward the rear end (the paper exit end), so the paper exit end of the concave plane cannot be raised high, and the front end (near the paper feed end) is more ink. Low, it is possible to arrange the structure such as “ribs” moderately, which can be flush with the plane of the protrusion. The paper exit end of the concave plane is penetrated, and there is no high-rise structure.
  • the overall sinking design of the auxiliary paper discharge platform combined with the rear end constitutes the gist of the present invention. This is also the fundamental point of the present invention in the processing principle and design of the printing medium bulging different from other manufacturers.
  • All of the concave planes must have sufficient width to facilitate the media to sag under the aid of suction and to absorb the amount of expansion of the medium.
  • the lateral width of each concave plane should be greater than 5 mm.
  • the height difference between the convex plane and the concave plane is small.
  • it is generally between 0.1 mm and 0.8 mm.
  • the height difference can be moderately large, and the maximum is generally no more than 4 mm.
  • a large overall expansion absorption is achieved by distributing a sufficient number of raised and depressed planes throughout the platform.
  • the overall absorption amount is sufficient for the use, the height difference between the convex plane and the concave plane is minimized to ensure that the printing effect is not affected.
  • suction holes or other suction structures are mainly arranged in the concave planar area.
  • a certain number of suction holes are also arranged on the convex plane, and may not be arranged in the convex plane.
  • the platform is more suitable for plastic mold making or metal casting mold segmentation production. Machining methods can also be used, but the relative cost is relatively high. It is also possible to use other auxiliary means such as a pasting method to manufacture the convex plane.
  • the height of the highest part of the rear end discharge platform should be lower than the height of the convex plane, at least close to the concave plane.
  • the portion of the rear end of the paper exit platform can also be vacated for a free distribution of the arched portion of the medium.
  • ⁇ E the size of ⁇ E depends on a number of factors such as the dielectric substrate and coating characteristics, the amount of ink printed, the printing speed, and the residence time. But generally can be based on actual working conditions test.
  • the structural design of the new printing platform is shown in Figure 9.
  • the projections and depressions of the platform are evenly distributed across the platform in accordance with the width of A and B.
  • the height of the bump is H.
  • the size of A and B needs to be determined according to the thickness and rigidity of the medium, the water absorption characteristics of the dielectric coating, the strength of the suction, and the pulling force of the paper. In practice, it can be tested by working conditions. In general, A can be smaller. B needs to be of sufficient size to overcome the rigidity of the medium and smoothly sag under the combined action of suction and winding tension.
  • the size of H can be calculated from the number of protrusions N and the total ⁇ E over the entire width of the platform:
  • the principle of the present invention is based on the bulging deformation of the in-situ absorption medium, so that the concave planes at the paper exit end in the Y direction are all open-ended, which is the point of distinction. That is, the concave plane does not have other structures at the exit end, and at the same time, the further sinking design of the paper discharge platform can be combined, so that the expansion amount of the medium is sufficiently lowered to be close to the lower concave plane to obtain the absorption.
  • the invention breaks through the conventional reconfiguration of the platform, controls the problem of media bulging, and does not affect the overall printing accuracy, thereby ensuring the printing medium in various ink quantities and water-absorbing media. Long-term stable work.
  • the invention has been designed and produced for the products, and is used in batches for industrial customers, and has achieved remarkable results.
  • 1 is a three-dimensional effect diagram of a printing platform portion of a conventional printing apparatus.
  • FIG. 2 is a three-dimensional wire block diagram of a printing platform portion of a conventional printing apparatus.
  • Figure 3 is a print device platform with a grooved design on the market.
  • Figure 4 is a printing device platform with a suction basin on the market.
  • Figure 5 is a photograph of a swell of the printing platform.
  • Figure 6 is a photograph of a swell of another printing platform.
  • Figure 7 is a three-dimensional rendering of the platform of the inventive concept.
  • Fig. 8 is a schematic view showing the analysis of the bulging profile of the printing platform on the market.
  • Figure 9 is a schematic view showing the principle of the platform structure of the present invention.
  • Figure 10 is a schematic diagram showing the effect analysis of the platform structure of the present invention.
  • Figure 11 is a photograph of a practical application test of the present invention.
  • Figure 12 is a three-dimensional design of the front and rear auxiliary platform of the present invention (Embodiment 1).
  • Fig. 13 is a view of the essential points and working states of the front and rear auxiliary platforms of the present invention (Embodiment 1).
  • Figure 14 is an advanced design (Embodiment 2) of the present invention.
  • Figure 15 is a schematic view of Embodiment 3 of the present invention.
  • Figure 16 is a schematic view of Embodiment 4 of the present invention.
  • Figure 17 is a schematic view of Embodiment 5 of the present invention.
  • Figure 18 is a schematic view of Embodiment 6 of the present invention.
  • Figure 19 is a schematic view of Embodiment 7 of the present invention.
  • Figure 20 is a schematic view of Embodiment 8 of the present invention.
  • FIG. 1 to 6 show the case of a printer in the prior art
  • Fig. 1 is a three-dimensional effect view of a printing platform portion of a conventional printing device.
  • 2 is a three-dimensional wire block diagram of a printing platform portion of a conventional printing apparatus.
  • Figure 3 is a print device platform with a grooved design on the market.
  • Figure 4 is a printing device platform with a suction basin on the market.
  • Figure 5 is a photograph of a swell of the printing platform.
  • Figure 6 is a photograph of a swell of another printing platform.
  • a printing platform structure comprising a vertical convex plane with a certain width, uniformly distributed in the X direction of the entire platform (ie, the printing width direction); and a concave plane of a certain width, and the convex plane are alternately arranged. Moreover, a plurality of suction holes are arranged in the concave plane, and a certain number of suction holes or convex surfaces are also arranged on the convex plane. As shown in Figure 7.
  • FIG. 7 is a schematic view showing the structure of the present invention.
  • the printing platform structure of the present invention comprises a printing platform between the paper feeding platform and the paper discharge platform, and the printing platform 1 is provided with a plurality of sides in contact with the printing medium.
  • a convex plane 2 and a concave plane 3 which are staggered with each other along the length direction of the printing platform 1, and the convex plane and the concave plane straddle the Y direction of the printing platform 1 ( Along the paper exit direction of the printing platform).
  • the lower concave plane 3 is provided with an opening, that is, the lower concave plane does not have other structures that are raised at the outlet end.
  • the printing platform 1 on the concave plane is provided with a suction hole 11; the height difference H between the convex plane 2 and the concave plane 3 is greater than or equal to ⁇ E/(2N), and ⁇ E is increased after the medium absorbs ink.
  • the length, N is the number of convex planes in the width of the entire X direction of the printing platform, as shown in FIG.
  • the height difference H between the convex plane and the concave plane is greater than or equal to 0.1 mm and less than or equal to 0.8 mm; and the X-direction of the concave plane is greater than 4 mm.
  • the projections and depressions of the printing platform of the present invention are laterally uniform across the platform in accordance with the width of A and B.
  • ⁇ E is digested and absorbed by a plurality of uniformly distributed unevenness amounts.
  • H the appropriate size of H
  • the platform has no visual impact on the printing effect.
  • FIG. 11 the actual measurement after the implementation of the principle of the platform can be seen that it is no longer the uncontrollable state of the protrusions in FIG. 5 and FIG.
  • the medium in Figure 11 has been able to fully conform to the surface of the printing platform without special abnormal protrusions. This state can greatly improve the print quality and solve the problem of scratching the print head, so that the device can work stably for a long time under complicated working conditions.
  • a guiding section B segment and a C segment are added between the paper feeding platform and the printing platform, and a guiding segment E segment is added between the paper discharging platform and the printing platform, and the guiding segment BCE segment is added.
  • the highest point is less than the height of the concave plane of the printing platform.
  • the height of the highest part of the paper discharge platform may be smaller than the height of the convex plane of the printing platform (the height of the highest part of the paper discharge platform may also be smaller than the height of the concave plane), and the medium is pulled up as shown in the figure. Under the combined action of the suction suction, it will fully adsorb to the concave plane, so as to effectively absorb the expansion amount of the digestive medium.
  • the printing platform 1 on the convex plane 2 is provided with a plurality of air suction holes.
  • some grooves 12 or other small holes may be further assisted.
  • the design of the concave plane, as shown in Figure 14, is based on the principle that the suction plane is larger than the convex plane.
  • the shape of the convex plane on the printing platform 1 is matched with the shape of the concave plane.
  • the convex plane 2 and the concave plane 3 on the printing platform 1 may have a mutual matching shape. If it can be rectangular, triangular, wavy or other suitable shape; the concave plane shown in Figure 16 is closed at the paper feed end, and its width gradually increases along the width direction of the printer, that is, the paper exit direction, reaching out The concave plane at the end of the paper is completely open.
  • a convex plane a is further disposed between the convex planes of the printing platform 1, and the convex plane 1 starts at the paper feeding end and terminates at a certain position on the printing platform.
  • the plane a is interlaced with the raised planes across the width of the printing platform.
  • FIG. 20 is only a splicing between the printing platforms of the convex planes having different shapes of the present invention. It is not limited to that shown in FIG.
  • the PASS gradually increases the amount of ink absorbed, so the depressed area can be narrower at the beginning, and gradually widened in the Y direction (the direction of the paper exit, that is, near the winding paper), as shown in the figure.
  • the concave area is narrow and wide at the front, and gradually increases, but they are all released.
  • the front recessed area is closed, where the initial print area is completely flush with the raised plane; the rear end is completely released at the exit portion, here the end print position.
  • This approach may be appropriate for printing Y to a wider multi-header machine.
  • Deformed platform treatment including various tread configurations, by way of example and not limitation.
  • the convex plane is reduced to the way of becoming a rib, as shown in FIG. This kind of situation is more suitable for media with higher tension and higher hardness, which can relatively diffuse the curvature of some ribs.
  • the printing platform of the present invention has the characteristics that the longitudinal direction (Y direction) can be spliced, and can be used for a printing apparatus in which more nozzles are integrated. As shown in Figure 20. All of the embodiments have a horizontal (X-direction) infinite splicing property. Stitching generally refers to the case where the printing platform is manufactured by plastic mold or metal casting mold. If the overall profile is processed, there may be little or no splicing.

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  • Handling Of Sheets (AREA)
  • Ink Jet (AREA)

Abstract

L'invention concerne une plate-forme d'impression (1), située entre une plateforme d'alimentation en papier et une plateforme de décharge de papier (e). La surface de la plate-forme d'impression (1) en contact avec un support d'impression est pourvue d'une pluralité de plans convexes (2) et de plans concaves vers le bas (3) qui sont décalés dans la direction X de la plate-forme d'impression (1) et s'étendent dans la direction Y de la plate-forme d'impression (1). Les extrémités de décharge de papier des plans concaves vers le bas (3) sont disposées de manière à s'ouvrir.
PCT/CN2018/095743 2017-08-25 2018-07-16 Plate-forme d'impression pour équipement d'impression à jet d'encre WO2019037560A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES18847818T ES2900498T3 (es) 2017-08-25 2018-07-16 Plataforma de impresión para equipo de impresión de inyección de tinta
EP18847818.4A EP3575094B1 (fr) 2017-08-25 2018-07-16 Plate-forme d'impression pour équipement d'impression à jet d'encre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710747038.9A CN107364242B (zh) 2017-08-25 2017-08-25 一种喷墨打印设备的打印平台
CN201710747038.9 2017-08-25

Publications (1)

Publication Number Publication Date
WO2019037560A1 true WO2019037560A1 (fr) 2019-02-28

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ID=60310440

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Application Number Title Priority Date Filing Date
PCT/CN2018/095743 WO2019037560A1 (fr) 2017-08-25 2018-07-16 Plate-forme d'impression pour équipement d'impression à jet d'encre

Country Status (4)

Country Link
EP (1) EP3575094B1 (fr)
CN (1) CN107364242B (fr)
ES (1) ES2900498T3 (fr)
WO (1) WO2019037560A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110654025A (zh) * 2019-10-17 2020-01-07 长春市莱宝科技有限公司 3d打印机构建平台用防止打印模型首层形变的加固装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107364242B (zh) * 2017-08-25 2020-05-08 杭州专色数码科技有限公司 一种喷墨打印设备的打印平台
CN113619295B (zh) * 2021-07-20 2023-12-15 郑州新世纪数码科技股份有限公司 一种打印机的打印介质展平装置及打印机

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Publication number Priority date Publication date Assignee Title
US6270215B1 (en) * 1998-01-21 2001-08-07 Mutch Industries Ltd. Inkjet printer
EP1182041A1 (fr) * 2000-08-24 2002-02-27 Hewlett-Packard Company, A Delaware Corporation Imprimante à jet d'encre
CN1526568A (zh) * 2003-03-07 2004-09-08 ������������ʽ���� 介质传送装置和记录设备
CN107364242A (zh) * 2017-08-25 2017-11-21 杭州专色数码科技有限公司 一种喷墨打印设备的打印平台
CN207736984U (zh) * 2017-08-25 2018-08-17 杭州专色数码科技有限公司 一种喷墨打印设备的打印平台

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JP3432052B2 (ja) * 1994-09-02 2003-07-28 キヤノン株式会社 インクジェット記録装置
JPH1035186A (ja) * 1996-07-19 1998-02-10 Mutoh Ind Ltd 自動製図機
JP4040746B2 (ja) * 1998-04-17 2008-01-30 武藤工業株式会社 インクジェットプロッタ・プリンタ
JP5543564B2 (ja) * 2011-12-27 2014-07-09 富士フイルム株式会社 インクジェット記録装置

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Publication number Priority date Publication date Assignee Title
US6270215B1 (en) * 1998-01-21 2001-08-07 Mutch Industries Ltd. Inkjet printer
EP1182041A1 (fr) * 2000-08-24 2002-02-27 Hewlett-Packard Company, A Delaware Corporation Imprimante à jet d'encre
CN1526568A (zh) * 2003-03-07 2004-09-08 ������������ʽ���� 介质传送装置和记录设备
CN107364242A (zh) * 2017-08-25 2017-11-21 杭州专色数码科技有限公司 一种喷墨打印设备的打印平台
CN207736984U (zh) * 2017-08-25 2018-08-17 杭州专色数码科技有限公司 一种喷墨打印设备的打印平台

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Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110654025A (zh) * 2019-10-17 2020-01-07 长春市莱宝科技有限公司 3d打印机构建平台用防止打印模型首层形变的加固装置

Also Published As

Publication number Publication date
EP3575094B1 (fr) 2021-09-08
ES2900498T3 (es) 2022-03-17
CN107364242B (zh) 2020-05-08
EP3575094A4 (fr) 2020-02-19
CN107364242A (zh) 2017-11-21
EP3575094A1 (fr) 2019-12-04

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