EP0584542B1 - Méthode et dispositif pour imprimer des objets - Google Patents

Méthode et dispositif pour imprimer des objets Download PDF

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Publication number
EP0584542B1
EP0584542B1 EP93111835A EP93111835A EP0584542B1 EP 0584542 B1 EP0584542 B1 EP 0584542B1 EP 93111835 A EP93111835 A EP 93111835A EP 93111835 A EP93111835 A EP 93111835A EP 0584542 B1 EP0584542 B1 EP 0584542B1
Authority
EP
European Patent Office
Prior art keywords
movement
printing
transportation
radiating device
set forth
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.)
Expired - Lifetime
Application number
EP93111835A
Other languages
German (de)
English (en)
Other versions
EP0584542A1 (fr
Inventor
Ralf Helling
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.)
Werner Kammann Maschinenfabrik GmbH and Co KG
Original Assignee
Werner Kammann Maschinenfabrik GmbH and Co KG
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 Werner Kammann Maschinenfabrik GmbH and Co KG filed Critical Werner Kammann Maschinenfabrik GmbH and Co KG
Publication of EP0584542A1 publication Critical patent/EP0584542A1/fr
Application granted granted Critical
Publication of EP0584542B1 publication Critical patent/EP0584542B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B41F15/30—Supports for workpieces for articles with curved surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0872—Machines for printing on articles having essentially cylindrical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles

Definitions

  • the invention relates to a method and a device for printing on objects according to the preamble of claim 1 and that of claim 6, respectively.
  • the printing ink applied After a printing process has been carried out, the printing ink applied must be dried as quickly as possible so that it adheres firmly to the object and is not smeared even when it comes into contact with other surfaces, even if several printed images are applied to the object in succession. for example to produce a multi-colored overall print image.
  • the procedure is such that using in one printing process a partial printing image, for example with a certain color, is applied to a screen printing stencil and an associated doctor blade, and further partial printing images, for example with different colors, are subsequently applied in succession.
  • the previously applied partial print image When applying a subsequent partial print image, the previously applied partial print image must be dry in order to prevent it from being smeared during the subsequent printing processes.
  • printing varnishes and printing inks are predominantly used, which polymerize or harden through exposure to UV rays and thereby become dry.
  • This drying method has proven to be particularly applicable in practice, in particular because the drying process can be carried out effectively in the course of a few seconds if appropriate radiation intensities are known to any person skilled in the art. Drying of the printing inks by means of UV rays takes place particularly in the case of objects made of plastic, e.g. B. bottles made of polyethylene or polyethylene terephthalate, but also for objects made of other materials, eg. B. glass or porcelain, application.
  • the arrangement is such that the drying device having a UV lamp is arranged in the screen printing machine, that is to say is part of the same.
  • a screen printing machine is normally provided with two or more treatment stations for the objects to be printed. The objects are printed in one of these treatment stations.
  • a drying station is then provided in the direction of transport of the objects behind the printing station, in which the printing ink just applied is dried by UV rays.
  • the arrangement is usually such that at least one holder is provided in each station, which supports the object during the dwell time in this station.
  • These brackets can also be between e.g. B.
  • two adjacent stations can be arranged so that they can also be used for the gradual transport of the objects in the machine.
  • An embodiment is also possible in which the objects are partly transported by means of the displaceable holders and partly by a special transport device.
  • the brackets are often arranged in such a way that they enable the objects to rotate about their longitudinal axis or about an axis parallel thereto during the respective treatment.
  • the treatment facilities are generally assigned to the respective treatment station and can only be moved to the extent that it is necessary to carry out the treatment in this station.
  • the drying station (s) are known to be stationary in known machines, with the result that, in addition to the time that the object has to remain in the treatment station for carrying out the drying treatment, there is also the time required to remove the object to transport a station located in its transport direction in front of the drying station into the drying station. This means that overall a considerable amount of time is required to carry out the drying.
  • the following must also be taken into account:
  • the known drying of paints and inks by the action of UV rays requires that the paints and paints used harden or polymerize under the action of UV rays.
  • the time of a working cycle of a printing machine is generally composed of the transport time for the objects and the downtime during which the objects are treated in the treatment stations.
  • the proportion of the transport time in this is greater than the proportion of the downtime.
  • the invention is based on the object of designing the method and device of the type described in the introduction in such a way that productivity is increased and / or the dwell time of an object in the device is reduced without the quality of the finished product suffering any losses.
  • the course of the method and the structure of the device should experience no or at least no significant complication. This object is achieved with the means specified in the characterizing part of claim 1 and that of claim 6.
  • the handling according to the invention of carrying out the drying of the printing ink applied in a previous printing station during a transport step which is required anyway has several advantages.
  • a section of the work cycle which is anyway necessary in terms of process and machine technology and is used for transporting the object is additionally made usable for treatment, so that in general either a transport step or a treatment station can be saved.
  • the treatment with the longest duration namely drying by means of UV rays, can also cover the portion of the working cycle ', which takes the longer time.
  • the arrangement is advantageously such that the UV lamp is located above the object to be irradiated.
  • this has the consequence that the rays only act on the upward-facing area of the object or the printed image thereon.
  • Disadvantages are not associated with this, however, since the object can easily be rotated about its longitudinal axis or an axis parallel to it during the drying process, so that even if the printed image extends over a larger circumferential area, possibly even over a range of 360 °, due to the rotational movements, the entire area of the printed image is exposed to UV rays.
  • the procedure will be such that the object and the UV lamp are moved synchronously during the drying process.
  • the UV lamp which is arranged in the usual manner within a housing to avoid adverse effects on the environment and health damage to operators from UV rays, to move along a linear path.
  • the object although it is possible that the object is moved on a curved path during the drying process.
  • a synchronous movement between the object and the UV lamp would mean that the movement component of the object is adapted to the movement of the latter parallel to the movement path of the UV lamp.
  • the invention is particularly applicable when in succession several partial print images are applied to the object, which complement each other to form an overall print image. This is the case with multi-color printing, for example. After each partial print image has been applied, a drying process must be carried out here in order to be able to apply another partial printed image immediately thereafter. In this case, drying could take place during transport from one printing station to the next printing station.
  • the embodiment shown in the drawing is provided with two U-rails 10a, 10b which are open at the top and which run parallel to one another and are arranged in the direction of arrows 12, 14 so as to be displaceable between two end positions, of which the end position is shown in FIGS. 2 and 4 in which the two rails 10a, 10b are the smallest distance apart.
  • the movements in the direction of arrows 12 and 14 are brought about by drives 16a and 16b designed as cylinder-piston units.
  • the piston rods 18a, 18b are each connected to the rail 10a or 10b.
  • the cylinders 20a, 20b are attached to the machine frame 22.
  • other, for example mechanical, drive means for the two rails 10a, 10b are also possible.
  • bracket supports 24a, 24b are connected to drives, which are not shown in the drawing for reasons of clarity and the back and forth movements of the cause two bracket supports 24a, 24b in the direction of arrows 26, 28.
  • FIG. 4 shows that the bracket parts 32a, 32b; 33a, 33b are each mounted in pairs in such a way that the mounting parts of each pair lie opposite one another. These mounting parts are adapted in the usual way to the shape of the object.
  • the holding parts 32a, 33a, which receive the bottom end of the respective bottle 34, are each provided with a recess designed as a seat.
  • the holder parts 32b, 33b are designed in the manner of a spike so that they fit into the neck opening of the bottle to be held by a pair of holders 32a, 32b or 33a, 33b.
  • the mounting parts 32a, 32b; 33a, 33b are attached to the mounting brackets 24a and 24b, they take in both their back and forth movements in the direction of the arrows 26, 28 and also their back and forth movements caused by the rails 10a, 10b and perpendicular to them Part of direction of arrows 12, 14.
  • Another pair of mounting parts 36a, 36b is arranged approximately in the middle of the two rails 10a and 10b on them.
  • the two mounting parts 36a, 36b can be attached to the respectively associated rail 10a or 10b with the interposition of means allowing a pivoting movement of the mounting parts, which are described in EP-A1-0425967 in connection with the printing of objects which are elliptical in cross section.
  • EP-A1-0425967 in connection with the printing of objects which are elliptical in cross section.
  • the printing technology requirements to be observed depending on the shape of the object are known to any person skilled in the art.
  • the mounting parts 32a, 32b; 33a, 33b attached in such a way that they enable the object held by them to rotate about its longitudinal axis or about an axis parallel to it. This is generally achieved by a correspondingly rotatable mounting of the mounting parts on the mounting brackets 24a, 24b.
  • the holding parts 36a, 36b are assigned to the only printing station in the exemplary embodiment shown in the drawing, which has a screen printing stencil held by the usual frame 38 and a doctor blade 39 interacting therewith.
  • the screen frame 38 is carried by a screen carriage 68, which is provided with a drive, not shown in the drawing, in order to move the screen printing stencil back and forth in the usual way in the direction of the arrows 26, 28, the printing ink being released during one of the two movements the object to be decorated is applied.
  • the embodiment shown in the drawing is provided with a transport device 40 which is arranged essentially below the two rails 10a, 10b.
  • the transport device 40 has a carrier 41 which is mounted on the machine frame 22 so as to be pivotable essentially parallel to the two rails 10a, 10b via two swivel arms 42.
  • the carrier 41 which, as indicated by the arrows 44 in FIG. 2, can be pivoted back and forth in a vertical plane running parallel to the rails 10a, 10b, is provided with two transport brackets 46, 48, each of which is attached their upper free end one Has receptacle 50 and 51, the upper-side boundary surface is adapted to the shape of the object 34 to be transported.
  • the latter In order to ensure that the object 34 maintains its correct position on the respective receptacle during the transport movement, the latter is provided on its upper boundary surface on which the object rests with openings which can be connected to a negative pressure source, so that a negative pressure becomes effective with the result that the object is pressed against the receptacle 50 or 51 and is thus held in its position.
  • a negative pressure becomes effective with the result that the object is pressed against the receptacle 50 or 51 and is thus held in its position.
  • the device is provided with two treatment devices 54, 56 for the objects, of which the device 54 located in the transport direction 28 of the bottles 34 in front of the screen printing stencil and squeegee serves for flaming the surface of the bottles 34 to be printed, as shown in FIG many cases when printing objects made of thermoplastic plastic is necessary.
  • the device 56 which lies behind the printing station in the transport direction 26, essentially consists of a UV lamp 58 which is arranged within a housing 60 which is open at the bottom or transparent to UV rays. Otherwise, the housing 60 is impermeable to UV rays.
  • Both the flame device 54 and the drying device 56 are connected via coupling rods 64 and 66 to the slide 68 carrying the stencil frame 38, so that both devices 54 and 58 are moved back and forth synchronously with the screen printing stencil. Both devices 54 and 56 can be guided on the machine frame. For the sake of clarity, these tours are not shown.
  • the bottles which are fed via a conveyor 70 connected upstream of the printing machine, when they are in position 34a, individually received by the bracket parts pair 32a, 32b.
  • the two mounting brackets 24a, 24b are moved within the respective associated U-rail 10a or 10b into the left end position shown in FIG. 1, in which the two mounting parts 32a, 32b are aligned with the bottle in position 34a.
  • the two rails 10a, 10b and thus also the mounting parts are at their greatest distance from one another.
  • the bottle is then gripped by both holder parts 32a, 32b.
  • the rail 10a is moved in the direction of arrow 12 and the rail 10b in the direction of arrow 14.
  • the holding parts 36a, 36b capture a bottle located in the printing station and carried by the receptacle 50 of the transport device and the holding parts 33a, 33b an already printed bottle located in position 34c in the transport direction 26 behind the printing station the recording 51 is worn.
  • the bottle carried by the holder parts 32a, 32b is transported from the position 34a to the position 34a '.
  • the bottle carried by the two holder parts 33a, 33b is transported from position 34c to position 34c '.
  • the bottle located there is printed in the printing station, the movement of the bottle which may be necessary being carried out independently of the displacement of the two bottles 34a and 34c, since the holding parts 36a, 36b assigned to the printing station are not are carried by the bracket beams 24a and 24b.
  • the empty transport device 40 is pivoted from the position according to FIG. 1 into its left end position according to FIG. 3, in which the receptacle swings 50 of the transport holder 46 is located below the bottle in position 34a ', and the receptacle 51 assumes a corresponding position to the bottle in position 34b in the printing station.
  • the bottle held by the holder parts 32a, 32b in the position 34a and the bottle held by the holder parts 33a, 33b in the position 34c ' can thus be released by moving the rails 10a, 10b apart and taken over by the receptacle 50 and 51, respectively.
  • the bottle released at position 34c 'at the end of the drying step by moving the two U-rails 10a, 10b apart from the holding parts 33a, 33b falls onto a conveyor belt 75 located underneath, which transports the printed bottles out of the machine.
  • the treatment device 56 can also be provided with a plurality of radiators which are arranged, for example, next to one another in the housing 60.
  • the two treatment devices 54 and 56 are also moved back into the starting position according to FIG. 1 by being carried along by the sieve slide 68 via the two coupling rods 64 and 66 when the sieve carriage 68 moves in the direction of arrow 28.
  • the bracket parts 32a, 32b; 33a, 33b are rotatably attached to the respective holder carrier 24a or 24b in such a way that the bottle received by the holder parts can be rotated about its longitudinal axis or an axis parallel to it.
  • the drive for this rotational movement can be effected in a simple manner in that, for example, the two mounting parts 32a, 33a are provided with a shaft which, on the outside, that is to say on the side facing away from the respective bottle, carries a gearwheel that is stationary on the frame of the screen printing machine attached rack combs.
  • the rotational movement may be necessary if the bottle is to be flamed over its entire circumference or to be exposed to the effects of UV rays.
  • the number of rotations to be carried out by the object can be determined by selecting the diameter of, for example, the gear wheel driving the at least one holding part. Another possibility is to provide an additional, controllable motor for these rotational movements, which drives the at least one holding part.
  • the movable arrangement of the UV lamp makes it possible to dry the printed object in each case during a transport step. This does not make the device more complicated since the transport devices must be provided anyway.
  • the arrangement of the UV lamp in such a way that it can be moved with the object to be transported results in the result that the drying device is not arranged in a stationary manner but in a movable manner. The measures required for this do not require significant expenses. This applies in particular if the Drive for the drying station can be derived from an existing drive.
  • the objects to be printed using the method and the device according to the invention are not continuous, web-shaped material, but individual objects, such as bottles, glasses or other articles, which may rotate or pivot during the printing process and possibly also during the drying process will.
  • the individual objects can also be flat or flat or limited objects which do not need to be rotated or pivoted during the printing process and / or the drying process.
  • the objects are transported individually, in many cases the extent of an object in the transport direction is shorter than the distance by which the UV lamp is moved during the drying step.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (14)

  1. Procédé pour réaliser des impressions par sérigraphie sur des objets (34) et pour sécher ceux-ci, en les faisant passer dans au moins un poste d'impression d'une machine de sérigraphie utilisant un pochoir de sérigraphie auquel est associée une raclette (39) afin de déposer au moins une image encrée sur chaque objet, après quoi on sèche l'image encrée ainsi déposée sur l'objet en utilisant le rayonnement d'au moins une source de rayons UV (58), caractérisé en ce qu'on effectue le séchage de l'image encrée déposée sur chaque objet en opérant pendant une phase du mouvement d'avance imposé à l'objet après l'opération d'impression, pour le déplacer d'un endroit à un autre, et en ce que le système de séchage qui comporte au moins une source de rayons UV (58) accompagne le mouvement de l'objet à traiter, au moins sur une partie du déplacement de celui-ci, de manière à mettre au moins une partie de l'objet dans la zone d'influence des rayons UV.
  2. Procédé selon la revendication 1, caractérisé en ce que les mouvements de l'objet (34) et de la source de rayons UV (58) s'effectuent en synchronisme.
  3. Procédé selon la revendication 1, caractérisé en ce que pendant le déplacement de l'objet, au cours duquel il se trouve soumis à l'effet des rayons UV, on fait pivoter l'objet autour de son axe longitudinal ou autour d'un axe parallèle.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'objet suit un trajet rectiligne pendant son séchage aux rayons UV.
  5. Procédé selon la revendication 1, caractérisé en ce qu'on dépose successivement sur chacun des objets au moins deux images encrées, et en ce qu'on soumet chaque objet aux effets d'au moins une source de rayons UV au cours d'un mouvement d'avance de l'objet, après chaque opération d'impression, en déplaçant la source de rayons UV avec l'objet dans le sens de l'avance de celui-ci, de manière à mettre l'objet dans la zone d'influence des rayons UV.
  6. Dispositif pour réaliser des impressions sur des objets (34) à l'aide d'au moins un pochoir de sérigraphie et d'une raclette (39) associée au pochoir, avec au moins un système transporteur (24a, 24b;40) pour faire avancer chaque objet (34) à travers au moins une partie du dispositif, ainsi qu'un système de séchage (56) pourvu d'au moins une source de rayons UV (58) pour sécher au moins une image encrée déposée sur l'objet au moyen du pochoir et de sa raclette, caractérisé en ce que la source de rayons UV (58) est mobile pour pouvoir être déplacée pendant un déplacement de l'objet (34) qui porte au moins une image encrée, et dans le sens du mouvement de cet objet, de telle manière qu'au moins la partie de l'objet (34) qui porte l'image encrée se trouve dans la zone d'influence de la source de rayons UV (58) pendant le déplacement de l'objet.
  7. Dispositif selon la revendication 6, caractérisé en ce que pendant la phase de séchage la source de rayons UV (58) se déplace en synchronisme avec l'objet (34).
  8. Dispositif selon la revendication 6, caractérisé en ce qu'après l'arrivée de la source de rayons UV (58) dans sa position extrême à la fin de son mouvement où s'effectue le séchage, on la ramème en sens inverse jusqu'à sa position de départ.
  9. Dispositif selon la revendication 6, caractérisé en ce qu'il comporte plusieurs postes d'impression que traversent successivement les objets à traiter, au moins une source de rayons UV étant associée à au moins une partie de ces postes d'impression et disposée en aval de ceux-ci dans le sens du mouvement d'avance des objets, cette source de rayons UV étant adaptée à se déplacer pendant au moins une partie du trajet d'un objet sortant d'un poste d'impression et dans le même sens que cet objet, de telle manière que cet objet se trouve dans la zone d'influence de la source de rayons UV.
  10. Dispositif selon la revendication 6, caractérisé en ce qu'au moins l'un des organes de maintien (33a,33b) qui portent l'objet (34) pendant l'opération de séchage est réalisé de manière à permettre un pivotement de l'objet (34) autour de son axe longitudinal ou autour d'un axe parallèle.
  11. Dispositif selon la revendication 6, caractérisé en ce que la source de rayons UV (58) est portée par une monture mobile (60) qui est reliée à la monture (68) du pochoir de sérigraphie et/ou à un système transporteur (24a,24b) assurant le mouvement d'avance de l'objet (34) pendant l'opération de séchage, pour accompagner le mouvement de cette monture et/ou de ce système transporteur.
  12. Dispositif selon la revendication 6, caractérisé en ce que la source de rayons UV (58) est contenue dans un boîtier (60) qui est perméable aux rayons UV à l'endroit de sa face située en regard de l'objet à traiter (34).
  13. Dispositif selon la revendication 6, caractérisé en ce qu'il comporte un système transporteur supplémentaire (40), pour prendre l'objet dans la position où il se trouve à la fin de l'opération d'impression et pour amener cet objet dans la position de départ du trajet où il est exposé aux rayons UV.
  14. Dispositif selon la revendication 6, caractérisé en ce que le système transporteur supplémentaire (40) sert également pour le mouvement d'avance de l'objet (34) jusqu'au poste d'impression.
EP93111835A 1992-08-25 1993-07-24 Méthode et dispositif pour imprimer des objets Expired - Lifetime EP0584542B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4228142A DE4228142A1 (de) 1992-08-25 1992-08-25 Verfahren und Vorrichtung zum Bedrucken von Objekten
DE4228142 1992-08-25

Publications (2)

Publication Number Publication Date
EP0584542A1 EP0584542A1 (fr) 1994-03-02
EP0584542B1 true EP0584542B1 (fr) 1997-02-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93111835A Expired - Lifetime EP0584542B1 (fr) 1992-08-25 1993-07-24 Méthode et dispositif pour imprimer des objets

Country Status (3)

Country Link
EP (1) EP0584542B1 (fr)
JP (1) JPH06182966A (fr)
DE (2) DE4228142A1 (fr)

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CN107738500A (zh) * 2017-11-08 2018-02-27 李建南 一种丝网印刷机

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DE10225198B4 (de) * 2002-06-06 2007-07-12 Polytype S.A. Verfahren und Vorrichtung zum Drucken eines mehrfarbigen Bildes
DE102005059109A1 (de) * 2005-12-08 2007-06-14 Atlantic Zeiser Gmbh Verfahren zur Herstellung einer Plastikkarte mit erhabenen Informationen und eine entsprechende Vorrichtung
JP5391768B2 (ja) * 2009-03-24 2014-01-15 凸版印刷株式会社 印刷装置及び印刷方法
CN102555561B (zh) * 2011-12-26 2013-03-06 湖北中信京华彩印股份有限公司 一种改进型凹印机用于印刷烟包雪花图的方法
DE102013217668A1 (de) * 2013-09-04 2015-03-05 Krones Ag Verfahren zur Aushärtung von Drucktinte auf einem Druckbereich von Behältern
PL424029A1 (pl) * 2017-12-22 2019-07-01 D.R.E. Spółka Z Ograniczoną Odpowiedzialnością Sposób powlekania drzwi i ościeżnicy
JP2022072404A (ja) * 2020-10-29 2022-05-17 株式会社Ｓｃｒｅｅｎホールディングス 印刷装置、および、印刷方法
IT202100004037A1 (it) * 2021-02-22 2022-08-22 Pack Innovation S R L Processo per la finitura di stampa di flaconi con particolare effetto lucido
CN113071195B (zh) * 2021-04-12 2022-06-14 广州互通气动机器工程有限公司 一种用于陶瓷真空管端面涂覆的丝网印刷设备

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DE807202C (de) * 1951-04-12 Ludwig Dipl.-Ing. Hoffmann Verfahren und Vorrichtung zum Trocknen poröser Stoffbahnen, insbesondere beim Bedrucken von Faserstoffbahnen und Geweben
IT1133926B (it) * 1980-10-16 1986-07-24 Argon Service Srl Procedimento di asciugatura dei fogli,delle bobine,e degli altri prodotti della stampa serigrafia e genere e forno per la realizzazione di detto processo
US4712474A (en) * 1985-11-04 1987-12-15 American Screen Printing Equipment Company Automatic article handling and screen printing apparatus
DE3936157C2 (de) * 1989-10-31 1999-03-18 Kammann Maschf Werner Verfahren und Vorrichtung zum Bedrucken von Objekten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107738500A (zh) * 2017-11-08 2018-02-27 李建南 一种丝网印刷机
CN107738500B (zh) * 2017-11-08 2019-10-08 南理工泰兴智能制造研究院有限公司 一种丝网印刷机

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Publication number Publication date
DE4228142A1 (de) 1994-03-03
EP0584542A1 (fr) 1994-03-02
JPH06182966A (ja) 1994-07-05
DE59305479D1 (de) 1997-03-27

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