WO2010069265A1 - Procédé et dispositif d'agrandissement double face - Google Patents

Procédé et dispositif d'agrandissement double face Download PDF

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Publication number
WO2010069265A1
WO2010069265A1 PCT/CN2009/075691 CN2009075691W WO2010069265A1 WO 2010069265 A1 WO2010069265 A1 WO 2010069265A1 CN 2009075691 W CN2009075691 W CN 2009075691W WO 2010069265 A1 WO2010069265 A1 WO 2010069265A1
Authority
WO
WIPO (PCT)
Prior art keywords
exposure
paper
pinch roller
photographic paper
sided printing
Prior art date
Application number
PCT/CN2009/075691
Other languages
English (en)
Chinese (zh)
Inventor
侯锋
Original Assignee
Hou Feng
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 Hou Feng filed Critical Hou Feng
Publication of WO2010069265A1 publication Critical patent/WO2010069265A1/fr

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera

Definitions

  • Double-sided printing method and device Double-sided printing method and device
  • This invention relates to a printer for copying photographs, and more particularly to a double-exposure printing method and a printing apparatus therefor. Background technique
  • Photographic papers used for traditional photo printing are single-sided photographic papers that can only be exposed on one side.
  • the photo paper is exposed to one side and placed in a picture frame or a book to be viewed on one side, which affects the use of photographic paper.
  • a photographic paper which can be double-sidedly sensitized has been proposed.
  • the invention patent of the Chinese Patent Publication No. CN2807300 can form an image on both the front and back sides of the photographic paper, thereby greatly improving the use efficiency of the photographic paper and reducing the cost.
  • Double-sided photosensitive photographic paper requires double-sided exposure, so the conventional printing device suitable for single-sided photographic paper is no longer suitable.
  • Chinese patent CN2807300 also proposes a double-sided exposure laser printer equipped with two laser exposers symmetrically mounted. When the double-sided photographic paper passes between two laser exposers, each laser exposer is respectively Exposure is performed on both sides of the paper.
  • the setup of the two laser exposures undoubtedly increases the cost of the equipment.
  • the re-equipping of the printer for double-sided printing will make the original single-sided printing equipment unusable, resulting in great waste. Summary of the invention
  • the present invention provides a double-sided printing method and apparatus that requires only one exposure device and that makes full use of the original single-sided printing apparatus.
  • One aspect of the present invention provides a two-sided printing method comprising the following steps. First, the photographic paper is brought into an exposure stage and the first surface is exposed to the exposer for the first exposure; then, the photographic paper is transferred from the exposure station to a turning mechanism; when the photographic paper is detected When the front end reaches the turning mechanism, the turning mechanism is turned over so that the second surface of the photographic paper faces the exposer; then, the photographic paper is transferred from the turning mechanism to the exposure Taiwan, for the second exposure.
  • the flipping mechanism is flipped 180 degrees in a clockwise or counterclockwise direction such that the second surface of the photographic paper faces the exposer.
  • the method further comprises: exposing the photographic paper The light table is sent out through the turning mechanism.
  • the step of transferring the photographic paper from the exposure station to a flipping mechanism comprises: bulging the photographic paper between the exposure station and the turning mechanism.
  • the invention provides a double-sided printing apparatus comprising a paper input mechanism, an exposure station, a paper conveying mechanism, an exposure device, and a turning mechanism.
  • the photo paper input mechanism is used to input photo paper for exposure.
  • the exposure stage is disposed after the photographic paper input mechanism for accommodating the photographic paper for exposure.
  • the paper transport mechanism has a conveyor belt that passes around the exposure station for transporting the paper into and out of the exposure station.
  • the exposer projects a beam of light to expose the first surface of the photographic paper on the exposure stage.
  • the flipping mechanism includes a pair of flip pinch rolls, a detector, and a flip drive mechanism. A pair of flip pinch rolls are disposed behind the exposure stage for pinching the paper into or away from the exposure stage.
  • the detector is used to detect whether the front end of the photographic paper reaches the flip pinch roller.
  • the turning drive mechanism is connected to the flip pinch roller for driving the pair of flip pinch rolls to rotate after the detector detects that the front end of the paper reaches the flip pinch roll, so that the pair of flip paper pinch rolls the photo paper
  • the second surface faces the exposer.
  • the driving mechanism includes a driving motor, a first gear and a second gear, the first gear is disposed on an output shaft of the driving motor, and the second gear is configured by the first Gear drive, wherein the pair of pinch rollers are disposed on a sleeve driven by the second gear.
  • the inverted pinch roller has a separate pinch drive mechanism.
  • the paper conveying mechanism further includes: a second pinch roller disposed on a side of the exposure table adjacent to the paper input mechanism, configured to input the paper input mechanism The conveyed photographic paper is introduced into the exposure stage; and a third pinch roller disposed on a side of the exposure table adjacent to the turning mechanism for introducing the photographic paper from the exposure station into the flipping Pinch roller.
  • the double-sided printing apparatus further includes a transmission mechanism for transmitting power of the third pinch roller to the reverse pinch roller.
  • the double-sided printing apparatus further includes an adsorption mechanism disposed under the exposure stage to cause the paper to be in close contact with the conveyor.
  • an adsorption mechanism is further provided, which is disposed under the exposure stage to bring the paper to the conveyor belt.
  • the adsorption mechanism is a centrifugal fan.
  • the double-sided printing device of the present invention requires only one exposure device, and double-sided printing can be realized by appropriately setting the turning mechanism; 2.
  • the double-sided printing device of the invention can be additionally provided with a turning mechanism on the original single-sided printing device, so that the original single-sided printing device can be fully utilized without reconfiguring the device;
  • Figure 1 is a schematic view showing the structure of a double-sided printing apparatus according to an embodiment of the present invention.
  • FIGS 2A and 2B are perspective views of inverting mechanisms of different angles according to an embodiment of the present invention.
  • Figures 3A-3H show the flipping process in the A direction of Figure 2A.
  • 4A-4H are the flipping process viewed in the B direction of Fig. 2A.
  • Fig. 5 is a view showing the structure of a double-sided printing apparatus according to another embodiment of the present invention.
  • FIGS 6A and 6B are perspective views showing inverting mechanisms of different angles according to another embodiment of the present invention.
  • Figures 7A-7E show the flipping process in the A direction of Figure 6A.
  • Figures 8A-8E show the flipping process in the B direction of Figure 6A.
  • Figure 9 illustrates a two-sided printing method in accordance with an embodiment of the present invention.
  • the double-sided printing apparatus 100 is for exposing double-sided photographic paper, and the two-sided exposure of the photographic paper is completed in two steps.
  • the structure of the device will be specifically described below.
  • the double-sided printing apparatus 100 includes a body 101 on which a paper input mechanism 110, an exposure stage 120, an exposure unit 130, a paper conveying mechanism 140, and a turning mechanism 150 are provided.
  • the paper input mechanism 110 is used to input an photographic paper for exposure (not shown), which includes a first pinch roller 111 and a paper cutter 112, wherein the paper cutter 112 is located behind the first pinch roller 111 so as to input The paper is cut to the required size.
  • the first pinch roller 111 is driven by a motor 113.
  • the paper cutter 112 is driven by an electric motor 114.
  • the photo paper input mechanism 110 is followed by an exposure stage 120, and the exposure photo paper enters the exposure stage 120 by means of the paper conveying mechanism 140.
  • the paper conveying mechanism 140 includes a conveyor belt 141 and a second pinch roller 142 and a third pinch roller 143. Wherein the second pinch roller 142 is disposed on the side of the exposure table 120 (left side in the figure) and phase Between the paper input mechanisms 110, a third pinch roller 143 is disposed between the other side of the exposure table 120 (right side in the drawing) and the turning mechanism 150.
  • the conveyor belt 141 sequentially passes through the second pinch roller 142 and the exposure table. 120 and a third pinch roller 143.
  • the third pinch roller 143 is driven, for example, by a motor 144, and the second pinch roller 142 is a driven roller.
  • the conveying direction of these conveyor belts and pinch rolls can be either positive (left to right) or reverse (right to left).
  • the second pinch roller 142 guides it into the transfer belt 141 and conveys it to the exposure stage 120 for exposure.
  • an adsorption mechanism 170 is also disposed under the exposure stage 120 to closely adhere the paper to the conveyor belt 141, thereby preventing the exposure imaging effect from being affected by the pleats of the paper.
  • the adsorption mechanism 170 is, for example, a centrifugal fan.
  • the exposure stage 120 is used to accommodate photographic paper for exposure.
  • the exposer 130 above the exposure stage 120 projects a light beam, and exposes an exposed side (lighting surface) of the photographic paper on the exposure stage 120, that is, the first surface, to form a desired image potential on the surface of the photographic paper. Shadow.
  • the exposed photographic paper is guided by the third pinch roller 143 and sent out to the exposure stage 120.
  • the turning mechanism 150 includes a pair of reverse pinch rollers 151, a detector 152 (Fig. 3A), and a flip drive mechanism 153, which are all disposed on the body 101.
  • a pair of reverse pinch rolls 151 are disposed after the 120 exposure stage and adjacent to the third pinch rolls 143.
  • the detector 152 is provided on the output side of the reverse pinch roller 151 for detecting whether or not the leading end of the photographic paper fed by the reverse pinch roller 151 has reached.
  • the distance between the third pinch roller 143 and the reverse pinch roller 151 can be appropriately set so that when the leading end of the paper reaches the point, the rear end that is not pinched by the reverse pinch roller 151 becomes a free end, and is no longer The three pinch rollers are clamped.
  • the paper in order to reduce the distance between the third pinch roller 143 and the reverse pinch roller 151, the paper may be passed between the third pinch roller 143 and the reverse pinch roller 151 when the paper is conveyed.
  • the bulging is achieved by making the conveying speed of the reverse pinch roller 151 smaller than the conveying speed of the third pinch roller 143.
  • the turning drive mechanism 153 includes a drive motor 153a, a first gear 153b, a transition gear 153c, and a second gear 153d.
  • the first gear 153b is a pinion gear, and is disposed on the output shaft of the driving motor 153a.
  • the second gear 153d is a large gear, and is driven by the first gear 153b via the transition gear 153c.
  • the pair of reverse pinch rollers 151 are disposed on the sleeve 1510. on.
  • the gear ratio of the first gear 153b and the second gear 153d may be 1:2, and when the first gear rotates one turn, the second gear 153d rotates half a turn (ie, 180 degrees), The driving sleeve 1510 and the reverse pinch roller 151 are rotated by 180 degrees.
  • the reverse pinch roller 151 is further provided with a separate pinch drive mechanism 154 including a drive motor 154a, a third gear 154b, two transition gears 154c, 154d, and a fourth gear 154e.
  • the output shaft of the drive motor 154a is sequentially driven by the third gear 154b, the two transition gears 154c, 154d, and the fourth gear 154e to drive one of the reverse pinch rollers to rotate, thereby pinching the paper.
  • the third pinch roller 143 feeds the photo paper 201 which is exposed on the first surface (the A side in the figure) to the exposure table 120, enters the flip pinch roller 151, and flips the pinch feed.
  • Roller 151 continues to drive photographic paper 201 away from exposure station 120.
  • the driving motor 154a of the pinch drive mechanism stops driving one of the flip pinch rollers.
  • the 151 is rotated to stop the pinch.
  • the drive motor 153a of the flip drive mechanism rotates the pair of flip pinch rolls 151 by 180 degrees to reach the position shown in Fig. 3C.
  • the direction of rotation can be either clockwise or counterclockwise.
  • the pinch drive mechanism 154 restarts the operation, and the reverse pinch roller 151 is driven to introduce the paper 201 toward the exposure table.
  • the introduction flow is as shown in Figs. 3D-3F and 4D-4F.
  • the flip pinch roller 151 can be rotated 180 degrees to return to the original position, as shown in Figs. 3E and 3F.
  • the reverse pinch roller 151 is no longer turned over, but the photographic paper 201 is directly fed to the next flow.
  • Fig. 5 is a view showing the structure of a double-sided printing apparatus according to another embodiment of the present invention.
  • the double-sided printing apparatus 200 of the present embodiment includes a body 101 on which a paper input mechanism 110, an exposure stage 120, an exposure unit 130, a paper conveying mechanism 140, an adsorption mechanism 170, and a turning mechanism 250 are disposed.
  • the turning mechanism 250 includes a pair of inverted pinch rollers 151, a detector 152 (Fig. 7A), and a flip drive mechanism 153.
  • One pair of flip pinch rollers 151 is disposed on the exposure table After 120 and adjacent to the third pinch roller 143.
  • a drive gear 251a is coaxially disposed on the reverse pinch roller 151.
  • the detector 152 is provided on the output side of the reverse pinch roller 151 for detecting whether or not the leading end of the photographic paper fed by the reverse pinch roller 151 has reached.
  • the distance between the third pinch roller 143 and the reverse pinch roller 151 can be appropriately set so that when the leading end of the paper reaches the point, the rear end that is not pinched by the reverse pinch roller 151 becomes a free end, and is no longer The three pinch rollers are clamped.
  • the paper in order to reduce the distance between the third pinch roller 143 and the reverse pinch roller 151, the paper may be passed between the third pinch roller 143 and the reverse pinch roller 151 when the paper is conveyed.
  • the bulging is achieved by making the conveying speed of the reverse pinch roller 151 smaller than the conveying speed of the third pinch roller 143.
  • the difference between this embodiment and the previous embodiment is that instead of using a separate driving mechanism, the driving mechanism is shared with the paper conveying mechanism 140, specifically, as shown in FIG. 5 and FIG. 6A, in the third folder.
  • the feed roller 143 is coaxially provided with a gear 254a and is conveyed via a transmission gear 254b to a drive gear 251a of one of the reverse pinch rollers 151.
  • the third pinch roller 143 feeds the photographic paper 201 which has been exposed on the first surface (the A side as shown in the figure) to the exposure table 120, enters the flip pinch roller 151, and flips the pinch.
  • Roller 151 continues to drive photographic paper 201 away from exposure station 120.
  • the driving motor 154a of the pinch drive mechanism stops driving one of the flipping pins.
  • the roller 151 is rotated to stop the pinch.
  • the drive motor 153a of the flip drive mechanism drives the pair of reverse pinch rollers 151 to rotate 180 degrees.
  • the pinch drive mechanism 154 restarts the operation, and the reverse pinch roller 151 is driven to introduce the paper 201 toward the exposure table.
  • the introduction flow is as shown in Figs. 7C-7D and 8C-8D.
  • the pair of reverse pinch rollers 151 are rotated 180 degrees to return to the original position. Then, it is again led to the reverse pinch roller 151 via the third pinch roller 143.
  • an exemplary double-sided printing method of the present invention can be summarized by the double-sided printing apparatus described above, and the flow thereof is as shown in FIG. 9. Referring to FIGS. 3A-3H and FIGS. 4A-4H, the method is as follows. Includes the following steps:
  • Step 301 the photographic paper 201 is introduced into the exposure table 120 and the first surface is exposed to the exposure device 130 for the first exposure;
  • Step 302 the photographic paper 201 is conveyed by the pair of pinch rolls 143 of the exposure table 120 to the turning mechanism 150, specifically, to the flip pinch roll 151;
  • Step 303 when the detector 152 detects that the front end of the photographic paper reaches the reverse pinch roller 151, the flip drive mechanism 153 rotates the reverse pinch roller 151 to cause the second surface of the photographic paper 201 to face the exposer 130;
  • the pinch roller 151 can be rotated 180 degrees clockwise or 180 degrees counterclockwise.
  • Step 304 the photographic paper 201 is sent back to the exposure table 120 by the turning mechanism 150 to perform the second exposure;
  • Step 305 the photographic paper 201 is sent out from the exposure station 120 via the turning mechanism 150.
  • the double-sided printing device requires only one exposure device, and the double-sided printing can be realized by appropriately setting the turning mechanism.
  • the double-sided printing device can be additionally provided with a selection mechanism and a turning mechanism on the original single-sided printing device, so that the original single-sided printing device can be fully utilized without reconfiguring the device; Simply flip the front end of the photo paper and the flipping process is quick and easy.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Registering Or Overturning Sheets (AREA)

Abstract

L'invention porte sur un procédé d'agrandissement double face qui comprend les étapes suivantes : tout d'abord, un papier photo est entré dans une table d'exposition (120) sa première surface faisant face à une unité d'exposition (130) pour être exposée pour la première fois; le papier photo est ensuite transféré à un mécanisme de renversement (150) à partir de la table d'exposition (120); lorsqu'un côté avant du papier photo arrivé au niveau du mécanisme de renversement (150) est détecté, le mécanisme de renversement (150) est renversé pour amener la seconde surface du papier photo à faire face à l'unité d'exposition (130); après cette étape, le papier photo est transféré à la table d'exposition (120) à partir du mécanisme de renversement (150) pour être exposé pour la seconde fois. Un dispositif d'agrandissement double face comporte un mécanisme d'entrée de papier photo (110), une table d'exposition (120), une unité d'exposition (130), un mécanisme de transfert de papier photo (140) et un mécanisme de renversement (150) qui comprend une paire de rouleaux pinceurs de renversement (151), un détecteur (152) et un dispositif d'entraînement de mécanisme de renversement (153).
PCT/CN2009/075691 2008-12-19 2009-12-18 Procédé et dispositif d'agrandissement double face WO2010069265A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810207354.8 2008-12-19
CN 200810207354 CN101750863B (zh) 2008-12-19 2008-12-19 双面扩印方法和装置

Publications (1)

Publication Number Publication Date
WO2010069265A1 true WO2010069265A1 (fr) 2010-06-24

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PCT/CN2009/075691 WO2010069265A1 (fr) 2008-12-19 2009-12-18 Procédé et dispositif d'agrandissement double face

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CN (1) CN101750863B (fr)
WO (1) WO2010069265A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109254490A (zh) * 2018-11-01 2019-01-22 郑州易邦微光电科技有限公司 双面激光扩印机一次曝光装置及双面激光扩印机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08137015A (ja) * 1994-11-08 1996-05-31 Konica Corp 写真焼き付け装置
US6356337B1 (en) * 2000-03-08 2002-03-12 Anvik Corporation Two-sided substrate imaging using single-approach projection optics
CN2920920Y (zh) * 2006-07-11 2007-07-11 中国印钞造币总公司 自动翻转机

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08137015A (ja) * 1994-11-08 1996-05-31 Konica Corp 写真焼き付け装置
US6356337B1 (en) * 2000-03-08 2002-03-12 Anvik Corporation Two-sided substrate imaging using single-approach projection optics
CN2920920Y (zh) * 2006-07-11 2007-07-11 中国印钞造币总公司 自动翻转机

Also Published As

Publication number Publication date
CN101750863A (zh) 2010-06-23
CN101750863B (zh) 2013-03-20

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