EP0095762A2 - Dispositif d'impression - Google Patents

Dispositif d'impression Download PDF

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Publication number
EP0095762A2
EP0095762A2 EP83105293A EP83105293A EP0095762A2 EP 0095762 A2 EP0095762 A2 EP 0095762A2 EP 83105293 A EP83105293 A EP 83105293A EP 83105293 A EP83105293 A EP 83105293A EP 0095762 A2 EP0095762 A2 EP 0095762A2
Authority
EP
European Patent Office
Prior art keywords
printing
printed
unit according
cylinder
printing unit
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.)
Granted
Application number
EP83105293A
Other languages
German (de)
English (en)
Other versions
EP0095762A3 (en
EP0095762B1 (fr
Inventor
Georg Sillner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT83105293T priority Critical patent/ATE36274T1/de
Publication of EP0095762A2 publication Critical patent/EP0095762A2/fr
Publication of EP0095762A3 publication Critical patent/EP0095762A3/de
Application granted granted Critical
Publication of EP0095762B1 publication Critical patent/EP0095762B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/006—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/36—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on tablets, pills, or like small articles

Definitions

  • the invention relates to a printing unit for applying an imprint to a surface of printed material lying in a printing plane, with a device for dispensing printing ink onto a printing surface in a distribution corresponding to the imprint.
  • the invention has for its object to show a printing unit, which is characterized by a particularly simple sequence of movements of the individual elements and thus by a particularly simple construction, and which allows clear and legible imprints even with a high print sequence.
  • a printing unit of the type described at the outset is designed according to the invention in such a way that the printing area is a self-contained, rotatingly driven area, and that at least the respective partial area of the printing area opposite the printing material and the printing material are approximately perpendicular to the surface of the printing material can be moved back and forth relative to one another between two positions such that in a first of these positions the printing surface and / or the surface of the printed material lie outside the printing plane and in a second of these positions within the printing plane.
  • the "printing surface” in the sense of the invention is either a surface provided with at least one printing form, in which case the printing areas of the printing form provided with this ink by the device for applying printing ink then apply the desired printing directly to the surface of the printed material, or else "Printing area” in the sense of the invention is an auxiliary area or printing transfer area without printing form, the device for dispensing printing ink having at least one printing form, the printing areas of which are provided with printing ink and then delivering this printing ink to the print transfer area in the distribution corresponding to the desired print. The latter then creates an imprint on the surface of the printed material, as is the case, for example, with an indirect gravure printing process.
  • the printing surface is a circumferentially driven surface
  • the movement required for receiving the printing ink, on the one hand, and for producing the print, on the other hand results in a particularly simple movement sequence and thus a relatively simple construction for the printing unit as a whole .
  • the respective subarea of the printing surface opposite the printing material and the printing material approximately perpendicular to the surface of the printing material in the manner mentioned above between the two Positions can be moved back and forth, the first position being a preparatory position preceding the actual printing process and printing in the second position, a clear, indistinct print image is also ensured.
  • the supply or discharge of the printed material into or out of the area of the printing plane is preferably clocked, i.e. with an intermediate idle time for the printed material, the then closed printing surface also being driven in a clocked manner so that the circumferential movement of the printing surface is interrupted whenever the subarea of the printing surface lying opposite the printing material and the printed material for applying the print from the first position in the second position to be moved towards each other and the movement of the printed material is interrupted.
  • the pressure surface is formed by a surface, preferably by the peripheral surface of a ring or cylinder.
  • a surface preferably by the peripheral surface of a ring or cylinder.
  • a preferably also self-contained and rotating driven “carrier surface” which has at least one printing form and which is formed, for example, by a surface of a forme cylinder .
  • the arrangement is then such that the pressure surface serving as the pressure transmission surface with a The further subarea is opposite the support surface and is at a distance from this support surface, the support surface and the subarea of the pressure transmission surface opposite the support surface (in addition to the circumferential movement of the support surface and the pressure transmission surface) being movable relative to one another in such a way that the printing form can be moved against the pressure transmission surface Plant can come.
  • the printing points of the at least one printing form are formed by depressions
  • the device for applying printing ink having a doctor blade sliding on the carrier surface or on the at least one printing form, so that the printing ink is exclusively in to introduce the depressions of the at least one printing form.
  • the carrier surface e.g. forme cylinder
  • the pressure transmission surface for example a corresponding auxiliary cylinder having this surface
  • a predetermined amount for example angular amount
  • the print transmission area with its further partial area is then pressed against the carrier surface, so that in each standstill phase a print image (in the form of an ink distribution corresponding to the print) is transferred to the print transmission surface.
  • the numeral 1 denotes the upper plate of a machine table, which is otherwise not shown in detail.
  • the plate 1 has a horizontal, flat surface side 2, to which the printing unit 3 is fastened and on which electrical, belted components 4 are gliding past the printing unit 3.
  • “Taped components” are understood to mean those electrical components which have the free ends of their connecting wires on a common belt, e.g. made of paper or cardboard.
  • the components 4 sliding on the surface 2 of the plate 1 are clocked in the direction of arrow A, i.e. guided past the printing unit 3 with an interrupted movement.
  • the printing unit 3 consists essentially of an upright plate 5 fastened to the plate 1, the surface of which is perpendicular to the surface side 2 of the plate 1, and a forme cylinder 6 and an auxiliary cylinder 7, both cylinders being perpendicular to each other the surface sides of the board extending axis on this Board are rotatably mounted.
  • the forme cylinder 6 and the auxiliary cylinder 7 are arranged on the front side of the circuit board 5 visible in FIG. 1, the forme cylinder 6 being fastened to the shaft 8 of a motor 9 and the auxiliary cylinder 7 to the shaft 10 of a motor 11.
  • the two motors 9 and 11 are held on the rear side of the circuit board 5, which is not visible in FIG. 1.
  • the arrangement is such that the connecting line between the shafts 8 and 10 runs perpendicular to the surface side 2 of the plate 1 and the shaft 8 carrying the forme cylinder 6 lies above the shaft 10 which supports the auxiliary cylinder 7, ie the shaft 8 has a larger one Distance from the surface side 2 as the shaft 10.
  • the arrangement is also such that the forme cylinder 6, which is formed in the form of a circular cylinder on its circumferential surface 12, is in each rotational position with a part of its circumferential surface opposite a part of the circumferential surface 13 of the auxiliary cylinder 7, which is also in the form of a circular cylinder, but does not touch the two circumferential surfaces 12 and 13, but have a certain distance d from each other, ie the distance D, which the two shafts 8 and 10 have from one another, is greater by the amount of the distance d than the sum of half the outer diameter of the forme cylinder 6 and the auxiliary cylinder 7.
  • the arrangement is such that in each rotational position of the auxiliary cylinder 7, with a partial area of its peripheral surface 13, it lies opposite the pressure plane 14 indicated by a broken line in FIG. 1, but is at a distance d from this pressure plane 14.
  • the pressure plane 14 is defined by the top side 4 'of the electrical components 4, ie the shaft 10 is at a distance from the surface side 2 of the plate 1 which is (distance) larger by the amount d than the sum of half the outer diameter of the auxiliary cylinder 7 and the height h of the electrical components 4.
  • the forme cylinder 6, which is preferably made of metal, bears several similar printing forms on its peripheral surface 12, the printing areas of which are formed by depressions and which are each provided on the peripheral surface 12 at equal angular intervals.
  • the printing forms can be applied to the peripheral surface 12 of the forme cylinder 6, for example, using a photo-etching method.
  • the form cylinder 6 is driven in a clocked manner by the motor 9 in such a way that, after each rotation step of the form cylinder 6, a printing form is located opposite the peripheral surface 13 of the auxiliary cylinder 7.
  • the auxiliary cylinder 7 consists essentially of a disk 15 fastened to the shaft 10 with a circular circumferential surface and of a ring 16 made of elastic material, for example of rubber or elastic plastic, which on one surface side, ie in the embodiment shown facing the board 5 Surface side of the disc 15 is fixed, in such a way that the circular ring having a rectangular cross section is concentric with the axis of the shaft 10 and the outer peripheral surface of the ring forming the peripheral surface 13 of the auxiliary cylinder is approximately flush with the peripheral surface of the disc 15 or else protrudes slightly over the peripheral surface of the disc 15.
  • the ring 16 is held, for example, on the disk 15 with pins (not shown in more detail), these pins being offset relative to one another by a very specific angular amount about the axis of the shaft 10.
  • the auxiliary cylinder 7 is driven in a clocked manner by the motor 11, in such a way that with each rotary step the auxiliary cylinder 7 is rotated by an angular amount about the axis of the shaft 10, which (angular amount) is equal to the angular amount by which the forme cylinder 6 at one Is rotated.
  • the angular amount by which the auxiliary cylinder 7 is rotated in each rotation step is chosen so that a certain one Part of the circumferential surface 13, which is immediately opposite a printing form on three circumferential surface 12, is directly opposite the printing plane 14 or the upper side 4 'of a component 4 after several rotation steps.
  • the forme cylinder 6 is moved in the direction of arrow B, ie clockwise in the illustration chosen for FIG. 1, and the auxiliary cylinder 7 in the direction of arrow C, ie counterclockwise, by motors 9 and 11 clocked driven.
  • the above-mentioned pins for holding the ring 16 on the disk 15 are arranged offset so that each time after the rotary movement has taken place and after the auxiliary cylinder 7 has been stopped again, these pins are located outside or to the side of the partial area of the peripheral surface 13, the (partial area) a printing form on the peripheral surface 12 of the forme cylinder 6 or a component 4 on the printing plane 14 is opposite.
  • the circuit board 5 forms the front of a housing which is closed laterally by two side walls 17 and backwards by a rear wall 18.
  • the housing accommodating the motors 9 and 11 is also closed on its top and bottom.
  • a device 19 for applying printing ink is attached to a side wall 17.
  • This device consists of a storage space 21 for printing ink formed in a first block 20 and a doctor blade or wiper device 23, which is guided radially to the forme cylinder 6 in a second block 22.
  • the latter is essentially formed by a displaceable block made of plastic which with an arcuate curved surface pressed against the peripheral surface 12 of the forme cylinder 6, due to a compression spring 24.
  • Pads forming wiper device 23 have a paint channel 25 which opens at one end on the surface of device 23 bearing against circumferential surface 12 and the other end of which is connected to space 21 via a pipe 26 '.
  • the one forming the doctor blade or wiper device Block 23 also has two guide plates 26, each of which slidably abuts a surface side of the forme cylinder 6.
  • Another motor 27 is fastened to the board 5 via the motors 9 and 11, the shaft 28 of which runs perpendicular to the surface sides of the board 5 and carries an eccentric 29.
  • This eccentric engages in a slot 30 of a slide 31 which is designed as an elongated plate and with its longitudinal extension in the direction of the connecting line of the axes of the shafts 8, 10 and 28, i.e. perpendicular to the surface strip 2 of the plate 1.
  • the slide 31 bears with a surface side directly against the front of the circuit board 5 and extends with its lower end into the vicinity of the lower part of the peripheral surface 13 of the auxiliary cylinder 7, this slide in the area of the forme cylinder 6 and the auxiliary cylinder 7 between them Cylinders and the board 5 is arranged.
  • the slider 31 is guided by a plurality of guide elements 32 on the board in the direction of its longitudinal extent for a reciprocating movement (corresponding to the double arrow E). Since the slot 30 lies transversely to the longitudinal extent of the slide 31, it is moved up and down in the direction of the double arrow E by the eccentric 29 provided on the shaft 28 of the motor 27.
  • two blocks 33 and 34 are fastened, which extend laterally into the space enclosed by the ring 16 and of which the block 33 is above the shaft 10 and the block 34 below the shaft 10.
  • both blocks 33 and 34 are offset from one another by 180 ° with respect to the axis of shaft 10 and on the connecting line between shafts 8 and 10.
  • Each block 34 is by means of a screw 35 and a threaded bore Clamping plate 36 is adjustably attached to a slider 37 extending in the direction of arrow E on slide 31.
  • the screws 35 of the blocks 33 and 34 are accessible through openings 38 in the disk 15.
  • the setting of the blocks 33 and 34, each having a rectangular cross section, is such that these blocks do not touch the inner surface of the ring 16 when the slide 31 is in its central position (rest position), ie the eccentric 29 in the region of one end of the Slot 30 is located, for example, in the area of the right end of this slot in FIG. 1.
  • the motor 27 is driven synchronously with the motors 9 and 11 in such a manner that the shaft 28 executes a full revolution from its rest position shown in FIG. 1 when the cylinders 6 and 7 are just in the rest position after a rotary movement by one rotary step .
  • the shaft 28 rotates in the direction of the arrow F
  • the slider 31 is initially moved downwards with each work cycle, as a result of which the lower block 34 presses the ring 16 radially outward against the upper side 4 'of a building element 4 which is ready. Subsequently, the slide 31 moves upward, whereby the ring 16 is pressed radially outward against a printing plate of the forme cylinder 6 by the upper block 33.
  • motors 9, 11 and 27 are connected to an electrical control device, not shown. It goes without saying that instead of these motors, a mechanical gear mechanism which drives the shafts 8, 9 and 28 can also be provided, which is then driven by a single drive motor.
  • the surface of the forme cylinder that has the printing forms is its peripheral surface and / or that the pressure transmission surface of the auxiliary cylinder is formed by its peripheral surface.
  • Other areas, e.g. Surface areas of end faces of the forme cylinder and / or auxiliary cylinder can be used for this function.
  • Fig. 4 shows a schematic representation of an embodiment of a printing unit according to the invention with a forme cylinder 39 which is driven step by step on a circuit board 40 about a horizontal axis 41.
  • a large number of printing forms 42 are provided on the circumferential surface of the forme cylinder 39, three printing forms in each case lying in a common row parallel to the axis 41 in the embodiment shown.
  • Several such rows are provided distributed uniformly around the circumference of the forme cylinder 39.
  • two rollers 44 are rotatably mounted on a slide 43 which is displaceably guided on the board 40 in the vertical direction (direction of the double arrow G), the two axes of these rollers lying in the horizontal direction and perpendicular to the axis 41.
  • At least one roller is driven synchronously with the forme cylinder 39.
  • An endless band-shaped element 45 is guided over the two rollers, which forms the pressure transmission surface of this embodiment with its outer surface and consists, for example, of rubber or another material suitable for the transfer of printing ink.
  • the respective upper partial length of the band-shaped element 54 lies directly opposite the circumferential surface of the forme cylinder 39, while the lower partial length of this element lies opposite the printing plane 14, which in this embodiment also coincides with the surface of the components 4 to be printed, which is on the surface side 2 of the plate 1 are guided.
  • the printing areas of the printing formes 42 are provided with printing inks when the forme cylinder 39 rotates.
  • the movements of the forme cylinder 39 and element 45 are briefly interrupted and the carriage 43 is raised, so that an ink application corresponding to the three printing forms 42 is applied to the outer surface of the element 45 is produced.
  • the forme cylinder 39 and the element 45 are moved further, namely the latter until the partial length of the element 45 provided with an ink application is above the printing plane 14.
  • the carriage 43 is lowered onto three available components 4 for transferring the printing ink application (print image). With each printing process, several components 4 are thus printed simultaneously.
  • the drive of the forme cylinder 39 and the band-shaped element 45 is chosen taking into account the diameter of the forme cylinder and the length of the band-shaped element 45 so that each new ink application to the element 45 takes place exactly where Such an order had already been placed in a previous work step.
  • a flat guide for the respective upper and the respective lower length of the element 45 is provided on the slide 43.
  • contact surface 46 is provided. If the element 45 is made of elastic material, these contact surfaces 46 can also be formed by blocks which - corresponding to the blocks 33 and 34 - are moved up and down, so that the need for a slide 34 is eliminated.
  • the embodiment according to FIG. 4 corresponds to the embodiment according to FIGS. 1 to 3 insofar as the printing according to FIG. 4 takes place in an indirect gravure printing process
  • the embodiment according to FIG. 5 differs from the embodiment according to FIG 4 essentially in that the forme cylinder 39 has been omitted and the printing formes are provided directly on the outer surface of the band-shaped element 45.
  • the printing ink is applied here by a device 47 which is arranged over the respective upper length of the element 45 and has, for example, the shape of an ink pad.
  • the device 47 can also be formed by a rotating ink roller, which is provided with a certain amount of printing ink during each revolution.
  • FIG. 6 shows an embodiment in which the components 4 are also printed in a direct printing process. And which essentially corresponds to the embodiment according to FIG. 5, but with the difference that instead of the band-shaped element 45 a cylinder 48 is used, the peripheral surface 49 of which has the printing forms.
  • This cylinder 48 is driven to rotate on the carriage 43 in a clocked manner about a horizontal axis and is moved back and forth between the device 47 and the pressure plane 14 in the direction of the double arrow G by means of the carriage 43.
  • the carriage 43 can be dispensed with or the axis of the cylinder 48 can be mounted directly on the circuit board 40, with blocks that can be moved back and forth in the direction of the double arrow G corresponding to the blocks 33 and 34, the individual printing forms for applying printing ink to their printing points are brought into contact with the device 47 and for transferring the printing image to the components 4 with their surface.

Landscapes

  • Printing Methods (AREA)
  • Ink Jet (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Rotary Presses (AREA)
EP83105293A 1982-05-28 1983-05-28 Dispositif d'impression Expired EP0095762B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83105293T ATE36274T1 (de) 1982-05-28 1983-05-28 Druckwerk.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19828215627U DE8215627U1 (de) 1982-05-28 1982-05-28 Druckwerk
DE8215627U 1982-05-28

Publications (3)

Publication Number Publication Date
EP0095762A2 true EP0095762A2 (fr) 1983-12-07
EP0095762A3 EP0095762A3 (en) 1985-07-31
EP0095762B1 EP0095762B1 (fr) 1988-08-10

Family

ID=6740588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105293A Expired EP0095762B1 (fr) 1982-05-28 1983-05-28 Dispositif d'impression

Country Status (3)

Country Link
EP (1) EP0095762B1 (fr)
AT (1) ATE36274T1 (fr)
DE (1) DE8215627U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294428A (en) * 1994-10-27 1996-05-01 Csb Moulds Ltd Marking apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1558989A (fr) * 1967-12-06 1969-03-07
DE2727043A1 (de) * 1976-06-16 1977-12-29 Fuji Photo Film Co Ltd Vorrichtung zum drucken von markierungen auf stahlplatten
DE2653069A1 (de) * 1976-11-23 1978-05-24 Metronic Geraetebau Druckvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1558989A (fr) * 1967-12-06 1969-03-07
DE2727043A1 (de) * 1976-06-16 1977-12-29 Fuji Photo Film Co Ltd Vorrichtung zum drucken von markierungen auf stahlplatten
DE2653069A1 (de) * 1976-11-23 1978-05-24 Metronic Geraetebau Druckvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294428A (en) * 1994-10-27 1996-05-01 Csb Moulds Ltd Marking apparatus

Also Published As

Publication number Publication date
ATE36274T1 (de) 1988-08-15
EP0095762A3 (en) 1985-07-31
EP0095762B1 (fr) 1988-08-10
DE8215627U1 (de) 1982-11-18

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