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EP0195378B1 - Dispositif d'impression - Google Patents

Dispositif d'impression Download PDF

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Publication number
EP0195378B1
EP0195378B1 EP86103444A EP86103444A EP0195378B1 EP 0195378 B1 EP0195378 B1 EP 0195378B1 EP 86103444 A EP86103444 A EP 86103444A EP 86103444 A EP86103444 A EP 86103444A EP 0195378 B1 EP0195378 B1 EP 0195378B1
Authority
EP
European Patent Office
Prior art keywords
printing
shaft
rotation
axis
unit according
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
EP86103444A
Other languages
German (de)
English (en)
Other versions
EP0195378A3 (en
EP0195378A2 (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
Priority claimed from DE19858508103 external-priority patent/DE8508103U1/de
Priority claimed from DE19858532754 external-priority patent/DE8532754U1/de
Application filed by Individual filed Critical Individual
Priority to AT86103444T priority Critical patent/ATE60282T1/de
Publication of EP0195378A2 publication Critical patent/EP0195378A2/fr
Publication of EP0195378A3 publication Critical patent/EP0195378A3/de
Application granted granted Critical
Publication of EP0195378B1 publication Critical patent/EP0195378B1/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
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/001—Pad printing apparatus or machines
    • 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.
  • Printing units for printing surfaces of printed material are known per se and are used, for example, in the manufacture of electrical add-on elements for printing type designations etc. onto these structural elements.
  • the invention is based on the object of demonstrating a printing unit which, with a relatively simple construction and with high output, permits flawless printing of printed matter.
  • a printing unit according to the invention is designed according to claim 1.
  • the printing unit according to the invention is characterized by a simple and reliably working construction and delivers flawless printed images which are not transferred directly from the printing forms to the surfaces of the printed material to be printed, but in an indirect printing process using the print transfer surfaces.
  • the second element is provided with a circular or annular depression, on the bottom of which the at least one printing form is provided.
  • This enables the printing unit to work properly even with a relatively large amount of excess printing ink, which (excess amount) ensures that the at least one printing form is properly colored, and after the printing form has been colored, excess printing ink is used by a scraper or a pulling device from the at least one area provided with a printing form is conveyed into an area on the outer or inner edge of the depression. This excess printing ink, which is conveyed outwards or inwards, is then used again for inking the printing form.
  • the first element consists of two individual elements which are arranged offset to one another in the direction of the first axis of rotation, at least one pressure transmission surface being provided on the sides of the two individual elements of the first element facing each other and the at least two pressure transmission surfaces facing one another in Direction of the first axis of rotation in opposite directions from the rest position, in which the mutually facing pressure transmission surfaces are at a greater distance from one another, can be moved into the working position, in which the mutually facing pressure transmission surfaces are at a smaller distance from one another, the second element at least on two surface areas facing away from each other has a printing form.
  • the two individual elements of the first element are preferably designed in the form of circular disks and have the at least two pressure transmission surfaces on the facing end faces.
  • the second element is also preferably in the form of a circular disk and has at least one printing form on each of the two end faces.
  • a plurality of pressure transmission surfaces are preferably provided on each individual element and a plurality of printing forms are provided on the two surface areas of the second element.
  • the printing unit according to FIGS. 1 to 4 has a machine frame or a machine frame which is formed by two plates 1 arranged with their surface sides in vertical planes and parallel and spaced apart from one another, which lie over two with their surface sides in horizontal planes and boards spaced one above the other are interconnected.
  • the two substantially rectangular plates 1 have on their lower side edge in FIG. 1 each in the region of the saui towards the right end an extension 1 'reaching down from this side edge.
  • the circuit boards 1 and thus the printing unit can be attached via angle pieces 3 to a work table or to a production line where the printed material 4, which in the illustrated embodiment is formed by electrical components, is to be imprinted.
  • the space formed between the two boards 1 is closed in the illustration chosen for FIG. 1 above and on the left and right side by a hood-like housing part 5 which also covers the outer sides of the boards 1.
  • a drive element 6 is fastened, which in the embodiment shown is formed by an angular gear mechanism, the driven shaft 7 of which is guided through the housing part 5 to the outside and can be connected either directly or via further coupling elements to a drive motor (electric motor), and whose output shaft 8 carries a toothed belt pulley 9.
  • a drive motor electric motor
  • the drive element 6 can also be a drive motor (electric motor), on the shaft of which the toothed belt pulley 9 is then attached.
  • a control disk 14 which, on its upper end face facing away from the stepping gear 10, has on its periphery a closed, ring-like edge 15 projecting beyond this end face, which runs concentrically to the axis of the shaft 11, and the height of which changes to form a control curve around the circumference of the control disk 14 such that the edge 15 has a region of maximum height and a region of minimum height which is 180 ° around the axis of the shaft 11 are offset from one another and merge into one another in such a way that the edge 15 in the bend has a height that changes according to a sine line.
  • the stepping gear 10 furthermore has an output shaft 16, the axis of which also lies in the vertical direction and which projects over the top and over the bottom of the stepping gear 10.
  • a gear 17 is fastened to the end of the shaft 16 projecting above the top of the stepping gear mechanism, which gear is connected to a gear 19 via an intermediate gear 18 rotatably mounted on the upper plate 2.
  • the gearwheel 19 is seated on a shaft 20 which also runs in the vertical direction with its axis and which is rotatably mounted in the upper and lower plate 2 and at the same time is also axially displaceable.
  • the shaft 20 is provided with a collar or with a section 21 with an enlarged cross-section, against which the upper end of a compression spring 22 which surrounds the shaft 20 rests, the lower end of which rests against one on the shaft 20 supports in the longitudinal direction of this shaft displaceably arranged sleeve 23, which in turn bears with its underside facing away from section 21 against the upper side of lower plate 2 or against a bearing element provided there.
  • the shaft 20 is for an axial movement upwards, i.e. biased in the direction of arrow A of FIG. 1.
  • a plate-like or circular disk-like element 24 is fastened, which in the area of its circumferential surface in the illustrated embodiment has four essentially circular-shaped elements 25 made of elastic material, e.g. made of rubber or elastic plastic.
  • the elements 25, each having the same radial distance from the axis of the shaft 20 and with their cylinder axis parallel to the axis of the shaft 20, are offset by 90 ° in each case about the axis of the shaft 20 and are each of the same length over the lower, ie face of the element 24 facing away from the lower circuit board 2 and form the pressure transmission surfaces at their lower, convexly curved surface 25 '.
  • a roller 26 bears against the upper end of the shaft 20 projecting above the upper circuit board 2 and is mounted on one end of a double-armed lever 28 by means of a bearing pin 27 so as to be rotatable about an axis running perpendicular to the circuit boards 1.
  • the lever 28, which is pivotally attached to these boards approximately in its central region with the aid of a hinge pin 29, the axis of which likewise runs perpendicular to the surface sides of the boards 1, has a further roller 30 at its other end, which is there with the help an axis 31, is also rotatably mounted about a spatial axis running perpendicular to the surface sides of the circuit boards 1 and bears against the upper side of the edge 15 forming the control curve.
  • a second circular disk-like element 32 is fastened, which is provided on the circumference on its end surface facing the lower circuit board 2 with a self-contained edge 33 which extends over the front surface facing the lower board 2 protrudes.
  • the element 32 is cup-shaped or plate-like.
  • a disk 34 provided with a central opening, which, in the embodiment shown, is provided with several different printing forms 35a, 35b and 35c at least on its surface side facing the lower plate 2 (FIG 4), which are each formed by line-shaped or punctiform depressions in this surface side.
  • the different printing forms 35a, 35b and 35c are each provided four times, in such a way that the printing forms of the same type are offset from one another by 90 ° about the axis of shaft 16, ie in the illustrated embodiments the printing forms 35a, 35b and 35c are each arranged in four groups around the axis of the shaft 16, with a printing form 35a followed by a printing form 35b and a printing form 35c following this in each group, offset by 30 ° in each case.
  • the element 32 and the flat disk 34 provided with the printing forms are clamped between a collar 36 and a clamping plate 38 held at the lower end of the shaft 16 by means of a screw 37.
  • a pin 39 projects beyond the lower end face of the collar 36 facing away from the lower plate 2 and extends through an adjustment 40a, 40b or 40c provided on the plate 34 into a bore 41 in the element 32.
  • the number of adjusting bores 40a-40c corresponds to the number of different printing forms 35a-35c, the adjusting bores being offset from one another at the same angular distances from one another about the axis of the shaft 16 that the (angular distance) the different printing forms 35a-35c have in a group from one another .
  • centering pin 39 By inserting the centering pin 39 into a centering hole 40a-40c, it is therefore possible to select for the printing process only those printing forms which are assigned to this centering hole and are of the same type, so that it is also possible to use the same 4 according to the selection made in each case To provide disc 34 with different printing.
  • the two elements 24 and 32 are further arranged with respect to one another such that these elements overlap with a partial area, the element 24 being arranged above the element 32 such that the elements 24 and 32 are in the vertical direction overlap in a partial area, in which partial area the movement path, on which the elements 25 rotate when the shaft 20 rotates, lies directly above the movement path on which the printing forms 35a-35c, which are each arranged with the same radial distance from the axis of the shaft 16, rotate the shaft 16 revolve.
  • a device 42 for applying printing ink is provided on the element 32, which device is essentially formed by a squeegee or by a scraper 43 which from above into the annular space between the collar 36 and the edge 33, and its lower edge bears against the surface side of the disk 34 provided with the printing forms 35a-35c and facing the lower plate 2.
  • the part of the scraper 43 protruding into the annular space is formed by a curved wall 44 with its surface sides running essentially in the vertical direction, which is arranged in such a way that in FIG.
  • This printing ink is then distributed with the lower scraper edge of the scraper 43 or the wall 44 in such a way that the printing ink, after the disk 34 has moved past the scraper 43, mainly at least on the annular surface area on which the printing forms 35a-35c are arranged only in the punctiform or linear depressions forming these printing forms.
  • the scraper 43 is held at one end of a horizontal holding arm 45, which is fastened at its other end to one of the two boards 1 via a holding rod 46.
  • a pulling device 47 is provided which is fastened to the other board 1 by means of a holding arm 48 and a holding rod 49 which extends obliquely upwards.
  • the pulling device 47 consists of a cutting blade 50, which in the simplest case is formed by a razor blade and which is arranged with its surface sides obliquely to the upper side of the disk 34 in such a way that the cutting blade 45 points to the top of the disk 34 Includes angle, which opens in the direction of rotation (arrow C) of the element 32.
  • the cutting blade 50 which is held by a holding block 51 and by screws (not shown) on the holding arm 48 by clamping, lies with its, in relation to the direction of rotation (arrow C) of the element 32, the front cutting edge 52 against that with the printing formes 35a-35c provided area of Top of the disc 34 on.
  • the mode of operation of the printing unit can be described as follows:
  • the printed material 4 or the individual components are fed to the printing unit in a clocked manner via a conveying device 53, this conveying device being driven synchronously with the drive of the printing unit.
  • both elements 24 and 32 are rotated in the same direction and at the same speed, as indicated by the arrows C and D.
  • the stepper gear 10 is designed so that during a full rotation of the shaft 11, the elements 24 and 32 perform a movement step of 90 ° with a preceding or subsequent standstill phase, in such a way that whenever the shaft 20 is out of its upper Position is lowered by a certain amount in the direction of arrow B, the two elements 24 and 32 stand still and one element 25 is directly opposite a printing form 35a or 35c and another element 25 is a surface of the printed material 4.
  • the shaft 11 is rotated further and the shaft 20 is further lowered (when the elements 24 and 32 are stationary)
  • one element 25 comes into contact with its underside for taking up a printed image with a printing form and the other element 25 with its underside for transmitting the printed image on the printed material 4 with the surface of this printed material to the system.
  • the shaft 20 then moves upward in the direction of arrow A. From a certain. Position, i.e. for example, when the underside of the elements 25 is level higher than the upper edge of the edge 33, the elements 24 and 32 are each rotated further by one switching step (angular step of 90 °). Subsequently, the shaft 20 is lowered again so that a print record can again be taken up by an element 25 and a print image can be transferred from an element 25 to a new, not yet printed printed material 4.
  • the printing unit according to FIGS. 5 and 6 differs from the printing unit according to FIGS. 1 to 4 only in that an essentially circular disk-shaped turntable 54 is provided instead of the conveying device 53.
  • the turntable 54 is fastened to a shaft 55 which is arranged parallel to and at a distance from the shaft 20 and which is mounted on the boards 2 and on a stationary auxiliary board 56 provided under the turntable 54, which is connected, for example, to the lower board 2 via spacer elements is rotatably supported that a portion of the element 24 and a portion of the circular disk-shaped turntable 54 overlap.
  • the shaft 55 carries a gearwheel 57 which is connected to the gearwheel 19 via an intermediate gearwheel 58 mounted on the upper circuit board 2, so that the turntable 54 is driven in rotation and clocked synchronously with the drive of the printing unit.
  • the turntable 54 On its upper side facing the elements 25, the turntable 54 is provided with groove-like recesses 59 which extend radially to the axis of the shaft 55 and are open to the upper side and to the edge 54 'of the turntable.
  • the number of recesses 59 which are arranged at uniform angular intervals around the axis of shaft 55, is equal to the number of elements 25.
  • a lever-like clamping jaw 60 can be pivoted at one end with the aid of a hinge pin 61 lying parallel to the axis of shaft 55 mounted, the pivot pin 61 of the shaft 55 being closer than the free end of the clamping jaw 60 which extends approximately to the circumferential surface 54 '.
  • a compression spring 62 prestresses each clamping jaw 60 so that when the spring 62 is relaxed, one of its jaws is radial to the shaft 55 extending longitudinal sides, namely with the longitudinal side serving as the holding surface 63 is directly adjacent to an extension 64 which has each recess 59 in the region of the peripheral surface 54 '.
  • each clamping jaw 60 has an upwardly projecting pin 65 which lags the associated extension 64 in the direction of rotation of the turntable 54 (arrow E).
  • each stop element 67 designed as a lever, parallel to the axis of the shaft 55 lying hinge pin 68 is pivotally mounted at one end.
  • the other end of each stop element 67 is finger-like with a reduced cross-section and has a nose-like projection 69 facing the shaft 55, which forms an inclined contact surface for the pins 65 on one side.
  • Each stop element 67 is prestressed by a compression spring such that the finger-like end 67 'with the projection 69 lies in the movement space of the pins 65.
  • the two stop elements 67 are further arranged so that their projections 69 lie on a connecting line which is approximately perpendicular to the line L which intersects the axes of the shafts 16, 20 and 55.
  • the conveyor devices 70 and 71 are conventional conveyor devices, for example linear conveyors (e.g. vibration conveyors), in which the components 4 are guided in a guide rail. Additional devices, not shown, such as air outlet nozzles or mechanical elements for moving the components 4 are preferably provided for introducing the components 4 from the conveying direction 70 into the respectively available extension 64 or for bringing the components 4 out of the extension 64 onto the conveying device 71 .
  • 101 is the work table with its upper side lying in a horizontal plane of an otherwise not shown machine frame or machine frame.
  • the printing unit 102 the drive elements of which are accommodated in a housing 103, is fastened where, for example, the printed material is to be imprinted at the end of a production line.
  • the printed material is formed by electrical components 104, which are strapped in a quasi-radial form and are held on a belt 105 which, with its longitudinal extent, is perpendicular to the plane of the drawing in FIG. 7.
  • the belt 105 is upright, i.e.
  • two circular disk-like elements 108 and 109 are provided in such a way that the two facing end faces 110 and 111 of these elements are at a distance from one another but parallel to one another, the axes of the elements 108 and 109 passing through the respective center point being coaxially with one another and in the horizontal direction, ie run in the direction parallel to the top of the work table 101 and in the direction perpendicular to the direction of movement of the belt 105.
  • the element 108 is secured against rotation at an end projecting from the housing 103 of a hollow shaft 112 which is rotatably mounted in the interior of the housing 103 or on a circuit board 113 and is displaceable in the axial direction, which (circuit board) connects the interior of the housing to the Elements 108 and 109 facing side completes.
  • the element 109 which is at a greater distance from the circuit board 113, is held against rotation at the end of a shaft 114, which with this end also protrudes beyond the housing 103 and is rotatable and axially in the housing 103 or in the hollow shaft 112 is slidably mounted.
  • the axes of the hollow shaft 112 and the shaft 114 are coaxially with one another and coaxially with the axes of the elements 108 and 109 and thus also extend in the horizontal direction.
  • the hollow shaft 112 and the shaft 114 and thus also the elements 108 and 109 seated on these shafts are driven in a rotating and clocked manner in such a way that after each rotation step, ie during each standstill phase following a rotation step, the hollow shaft 112 and thus also the element 108 from a rest position at a smaller distance from the circuit board 113 according to the arrow A 'into a working position at a greater distance from the latter The board moves and then moves back again, this stroke taking place in the direction of the axis of the hollow shaft 112.
  • the element 109 is first moved according to the arrow B 'from a rest position with a greater distance from the circuit board 113 into a working position with a smaller distance from this circuit board and then moved back into the rest position against the arrow B'.
  • This stroke of the element 109 which corresponds in size to the stroke of the element 108, also takes place in the direction of the axis of the hollow shaft 112 or the shaft 114.
  • the elements 108 have the same diameter and rotate synchronously and with the same direction of rotation and 109 is provided in the interior of the housing 103 a step mechanism which is driven by a drive motor, not shown, which either transports the belt 105 either via the same step mechanism or via a further step mechanism, so that the belt is also moved in steps 105 and thus the components 104 takes place synchronously with the rotational movement of the elements 108 and 109.
  • a gear arrangement also not shown and having at least one control curve, is also provided in the interior of the housing 103, this gear arrangement also being designed such that the stroke movements of the elements 108 and 109 take place synchronously or simultaneously in the opposite direction.
  • pressure elements 115 and 116 which are formed in a substantially circular cylindrical manner and are provided at the same radial distance from the axis of the shaft, are provided at uniform angular intervals around the axes of these elements 114 or hollow shaft 112 are arranged and made of elastic material, for example made of rubber or elastic plastic.
  • the elements 115 and 116 which lie with their cylinder axes parallel to the axis of the shaft 114 or hollow shaft 112, are fastened at one end or on one end face to the end face 110 or 111 of the associated element 108 or 109.
  • the pressure elements are convexly curved and form the pressure transmission surfaces 115 ′ or 116 ′ there, all pressure transmission surfaces 115 ′ being the same distance from the end face 110 and all pressure transmission surfaces 116 ′ being the same distance from the end face 111 exhibit.
  • the pressure elements 115 and 116 in the illustrated embodiment are arranged such that in the direction of the axis of the shaft 114 or hollow shaft 112, each pressure element 115 on the element 108 is directly opposite a pressure element 116 on the element 109, which also means that the number of pressure elements 115 is equal to the number of printing elements 116.
  • a shaft 117 is rotatably mounted in the housing 103 or in the plate 113, the axis of which lies parallel to the axis of the shaft 114.
  • the shaft 117 carries a circular-disk-shaped element 118, which is provided on its two vertical end faces running perpendicular to the axis of the shaft 117 each with an annular recess open to the respective end face, the respective bottom surface 119 and 120 is parallel to the end faces 110 and 111 of the elements 108 and 109 and is provided in the region of the circumference with printing forms 121, which are each formed by line-shaped or dot-shaped depressions on these floor surfaces.
  • the printing forms 121 on each bottom surface 119 and 120 are each arranged at equal angular distances around the axis of the shaft 117 and are also each at the same radial distance from this axis, with each printing form 121 on the bottom surface 119 having a printing form 121 on the bottom surface 120 is directly opposite in the direction of the axis of the shaft 117. All printing forms 121 on each bottom surface 119 and 120 are of identical design, the printing forms 121 on the bottom surface 119 can be different from the printing forms 121 on the bottom surface 120, i.e.
  • the printing forms 121 on the bottom surface 119 are used, for example, for printing technical data on one side of the cuboid-shaped component bodies 104 'and the printing forms 121 on the bottom surface 120 for printing a manufacturer's note on the other opposite side of the component bodies 104'.
  • the thickness of the element 118 in the area of the printing form 121, i.e. the distance of the bottom surfaces 119 and 120 is approximately equal to the thickness of the component body 104 'in the direction of the axis of the shaft 114, i.e. approximately equal to the distance between the two surfaces of the component body 104 'to be printed.
  • the shaft 117 which is rotatably but axially non-displaceably, is also driven in a rotating and clocked manner, namely in synchronism with the drive of the elements 108 and 190, the element 118 preferably being driven in the same direction as the drive of the elements 108 and 109 , ie all elements have the same direction of rotation.
  • Element 118 has the same diameter as elements 108 and 109.
  • shaft 117 is in the housing 103 mounted in such a way and the element 118 fastened to this shaft in such a way that it extends with a partial area into the space between the elements 108 and 109, in such a way that a printing element 115 forms a printing form 121 in each phase of the elements 108, 109 and 118 at a standstill on the bottom surface 119 and a pressure element 116, a printing form 121 on the bottom surface 120 in the direction of the axes of the shaft 117 is directly opposite.
  • the distance that the axes of the shafts 114 and 112 have from the axis of the shaft 117 is equal to the sum of the radial distance of the printing forms 121 from the axis of the shaft 117 and the radial distance of the printing elements 115 and 116 from the axis of the shaft 114.
  • Two devices 122 and 123 for coloring the printing forms 121 with printing ink are also provided on the element 118.
  • these devices which are designed to feed the printing ink and are designed in a squeegee manner, it is achieved that the printing forms 121 which pass through the device 118 when the element 118 rotates are provided with printing ink only in the region of the linear or dot-shaped depressions forming these printing forms.
  • the angular distance that the pressure elements 115 and 116 have on the elements 108 and 109 from one another corresponds in each case to one rotation step of these elements.
  • the distance between the printing forms 121 on each bottom surface 119 and 120 corresponds to a turning step of the element 118.
  • the number of printing forms 121 on the bottom surfaces 119 and 120, the number of printing elements 115 and 116 on the elements 108 and 109 are otherwise in the The size of the turning steps of these elements is adjusted so that in each standstill phase of these elements not only a printing form 121 is opposite each printing element 115 and 116, but the component body 104 'of a component is located between two other printing elements 115 and 116.
  • FIGS. 9 to 11 show in detail a printing unit, which is designed essentially in the same way as the printing unit according to FIGS. 7 and 8, and differs from the printing unit in FIGS. 7 and 8 only in that an element instead of the element 118 118 'is used with flat end faces, on each of which a disk 34 having the printing plates 35 is provided, each disk 34 being designed and fastened in the manner described in the embodiment according to FIGS. 1 to 4.
  • a further circuit board 113 ′ is provided in the interior of the housing 103 parallel to and at a distance from the circuit board 113.
  • the drive motor 124 (electric motor) with a gear 125 for driving the printing unit is provided on the upper edge of both boards.
  • a rhyme disk 127 sits on the output shaft 126 of the transmission, which is connected via a toothed belt 128 to a belt pulley 129, which sits on the input shaft 130 of a stepping transmission 131.
  • control disk 132 On the shaft 130 there is also a control disk 132 with a self-contained annular groove 133, which forms two control cams 134 and 135 on their mutually facing lateral surfaces, each of which is designed similarly to the control curve formed by the edge 15 and in one about the axis of the shaft 130 extending portion each have a greater distance and in a different portion a smaller distance from the board 113 '.
  • two further boards 140 and 140 ' are provided in parallel and at a distance from one another, their surface sides being perpendicular to the surface sides of the boards 113 and 113' and being connected to these boards.
  • a hinge pin 141 is supported at both ends, the axis of which lies in an axial direction perpendicular to the axis of the hollow shaft 112 or shaft 114.
  • two double-armed levers 142 and 143 are each pivotably mounted approximately in the middle.
  • the two levers carry rollers 144 and 145 at their upper ends, each of which can be rotated about an axis parallel to the axis of the pivot pin 141.
  • the roller 144 of the lever 142 lies against the control cam 134 and the roller 145 of the lever 143 against the control cam 135.
  • a disk 146 is provided which has a larger outer diameter than the shaft 114.
  • a sleeve 147 forming a slide bearing is seated inside the housing 103.
  • the lower end of the lever 142 lies with a slide body 148 attached to this end against the end face of the elements 108 and 109 facing the Disc 146 on.
  • a sliding body 149 fastened to the lower end of the lever 143 bears with its side facing the elements 108 and 109 against the sleeve 147.
  • guide elements are provided which, while allowing the elements 108 and 109 to move in the direction of the arrows A 'or B' or in the opposite direction, prevent the elements 108 and 109 from moving relative to one another by the Can rotate axis of shaft 114.
  • These guide elements each consist of a bolt 150 which is held with a thread in a threaded bore in the element 109, with its axis parallel to the axis of the shaft 114 lies and extends with one end into a bore 151 of the element 108.
  • a sliding sleeve 152 is secured against rotation on the bolt 150 and slides with its outer surface on the wall of the bore 151.
  • the elements 108 and 109 are also coupled to one another via the bolts 150 such that when the hollow shaft 112 is rotated, the element 109 seated on the shaft 114 is also rotated via the element 108 fastened on this hollow shaft.
  • a plurality of compression springs 153 are provided, which push the elements 108 and 109 apart into their respective rest positions.
  • the translation of the stepping gear 131 and the control cams 134 and 135 are designed so that after each rotation step of the shaft 117 and the shafts 112 and 114 during the standstill phase following this rotation step, the levers 142 and 143 by the control cams 134 and 135 from a rest position in a working position, ie the lever 142 in the direction of arrow D 'and the lever 143 against this direction pivoted about the hinge pin 141 and then pivoted back into the rest position, so that the elements 108 and 109 in each standstill phase from the rest position a working stroke Execute in direction A 'or B' and back to the rest position.
  • the stepping transmission 133 is preferably designed such that when the shaft 130 rotates fully, the shaft 117 carries out four rotary steps, each with a subsequent standstill phase.
  • FIG. 11 shows in detail the device for inking the printing forms 35a-35c on the disks 34.
  • This device again consists of the two elements 122 and 123.
  • the elements 122 and 123 are each following Wiping devices 154 and 155 are provided, each consisting of a block 158 fixed to the element 122 or 123 and a block 158 held on this block with the aid of guide pins 157 in the direction perpendicular to the end faces of the element 118 ', which carries a knife-like scraper 159, which rests resiliently against the surface side of the disk 34 in question provided with the printing formes 35a-35c, specifically because of the compression spring 160 acting between the blocks 156 and 158.
  • FIG. 11 shows in detail the device for inking the printing forms 35a-35c on the disks 34.
  • This device again consists of the two elements 122 and 123.
  • the elements 122 and 123 are each following Wiping devices 154 and 155 are provided, each consisting of a block 158
  • the two are each of cutting blades formed scraper based on the direction of rotation of the element 118 'arranged so that this scraper with the respective Iligen surface of the ring 34 form an acute angle, which opens in the direction of rotation of the element 118 '(arrow C').
  • the wipers 159 and also the wipers 50 according to FIGS. 1 to 4 in such a way that this wiper forms an acute angle with the surface side of the disk 34, which angle is opposite to the direction of rotation of the element 118 'or Element 32 opens.
  • each standstill phase of the elements 108, 109 and 118 two printed images are transferred from the colored printing areas 121 to the printing transfer areas 115 'and 116' at the same time.
  • the print transmission surfaces 115 'and 116' provided with these print images then, after one or more rotation steps of the elements 108 and 109, reach the area where a component body 104 'is located between these elements, so that the print images then (in a standstill phase) can be printed on the surface sides of a ready component body 104 '.
  • a braking device for a shaft as is shown in FIG. 5 with the braking device 72 for the shaft 20 is indicated.
  • This braking device avoids inaccuracies that could result from the play of the driving gears 17 to 19, since a constant, braking torque is constantly exerted on the shaft 20.

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  • Printing Methods (AREA)

Claims (15)

1. Dispositif d'impression pour imprimer en surcharge une surface de produit imprimé (4), située dans un plan d'impression, comportant un premier élément (24, 108, 109) commandé par impulsions et monté en rotation autour d'un premier axe rotatif (20, 112, 114) d'un bâti de machine (1,2), ledit élément (24,108,109) présentant, au moins sur une zone de surface, une surface de transfert d'impression (25', 115', 116'), un deuxième élément (32, 118) également commandé par impulsions et monté en rotation autour d'un deuxième axe de rotation (16, 117) du bâti de machine, parallèle au premier axe de rotation, ce deuxième élément (32, 118) comportant au moins un bloc d'impression (35a, 35b, 35c, 121) sur au moins une zone de surface (34, 119, 120) tournée vers le premier élément (24, 108, 109), ainsi qu'un dispositif (42, 122, 123) pour appliquer de l'encre d'impression sur au moins un bloc d'impression (35a, 35b, 35c, 121), dans lequel au moins un des deux éléments peut effectuer, par rapport à l'autre élément, un mouvement de va-et-vient entre deux positions, de manière à ce qu'au moins une surface de transfert d'impression (25', 115', 116') s'applique contre au moins un bloc d'impression (35a, 35b, 35c, 121) dans une première position (position de travail) et présente un intervalle par rapport au bloc d'impression dans une seconde position (position de repos) et, en outre, au moins un bloc d'impression (35a, 35b, 35c, 121) et au moins une surface de transfert d'impression (25', 115', 116') sont disposés dans un plan perpendiculaire aux axes de rotation (16, 20; 114, 117), et les éléments (24, 32; 108, 109, 118) sont mobiles, les uns par rapport aux autres, dans la direction des axes rotatifs (20, 16; 114, 117).
2. Dispositif d'impression selon la revendication 1, caractérisé en ce que le nombre de surfaces de transfert d'impression (25'; 115', 116') d'au moins un côté de surface du premier élément est égal au nombre de blocs d'impression (35a, 35b, 35c; 121) du côté du deuxième élément, tourné vers ce côté de surface, ou est un multiple entier de celui-ci, et/ou que le nombre de blocs d'impression (35a, 35b, 35c; 121) d'au moins un côté de surface du deuxième élément est égal au nombre de surfaces de transfert d'impression (25'; 115', 116') du côté du premier élément, tourné vers ce côté de surface, ou un entier de celui-ci.
3. Dispositif d'impression selon la revendication 1 ou 2, caractérisé en ce que les surfaces de transfert d'impression (25'; 115', 116') sont réparties autour du premier axe de rotation avec des écarts angulaires toujours identiques et/ou que les blocs d'impression (35a, 35b, 35c; 121) sont disposés autour du deuxième axe de rotation (16, 117) avec des écarts angulaires toujours identiques.
4. Dispositif d'impression selon l'une des revendications 1 à 3, caractérisé en ce qu'au moins deux groupes de blocs d'impression (35a, 35b, 35c) différents sont prévus sur le deuxième élément, les blocs d'impression de chaque groupe étant mutuellement décalés d'un premier écart angulaire toujours identique autour du deuxième axe de rotation et les blocs d'impression de chaque groupe étant décalés d'un deuxième écart angulaire par rapport aux blocs d'impression d'un autre groupe, et que le deuxième élément (32) peut être fixé sur un arbre (16), formant le deuxième axe de rotation, dans diverses positions correspondant au deuxième écart angulaire.
5. Dispositif d'impression selon l'une des revendications 1 à 4, caractérisé en ce que les surfaces de transfert d'impression (25'; 115', 116') sont formées par les extrémités libres de saillies (25; 115, 116), de préférence en matériau élastique, lesquelles saillies dépassent la surface du premier élément (24; 108,109) qui est tournée vers le deuxième élément (24; 108,109).
6. Dispositif d'impression selon l'une des revendications 1 à 5, caractérisé en ce que le deuxième élément (32) présente, sur son côté de surface tourné vers le premier élément (24), un renfoncement circulaire ou en forme d'anneau de cercle, ouvert en direction du premier élément (24) et fermé en direction de la périphérie, au fond duquel sont prévus les blocs d'impression (35a, 35b, 35c), et dans lequel une racle (43) du dispositif (42), formée par exemple d'une paroi (44) arquée, pénètre de préférence dans le renfoncement pour appliquer l'encre d'impression et s'appuie sur le fond du renfoncement par son bord de raclage.
7. Dispositif d'impression selon la revendication 6, caractérisé en ce qu'il est prévu à l'arrière de la racle (43), dans le sens de rotation du deuxième élément (32), un dispositif d'enlèvement (47) pénétrant dans le renfoncement et comportant une lame (52) située au fond du renfoncement, ladite lame (52) étant orientée, de préférence, de manière oblique par rapport au sens de rotation (C) du deuxième élément (32) et à distance de la périphérie intérieure et/ou extérieure (36, 33) du renfoncement.
8. Dispositif d'impression selon l'une des revendications 1 à 7, caractérisé en ce que le premier élément (24; 108, 109) est fixé sur au moins un arbre (20; 112, 114) qui est monté en rotation et peut se déplacer axialement dans le bâti de machine (1, 2, 103) et peut effectuer un mouvement de va-et-vient dans la direction axiale au moyen d'une came de commande (15; 134, 135) qui est prévue sur un arbre (11; 136) tournant en continu.
9. Dispositif d'impression selon l'une des revendications 1 à 8, caractérisé en ce que le premier élément (24; 108, 109) ainsi que le deuxième élément (32, 118) sont fixés sur des arbres (20, 16; 112, 114, 117) à entraînement lié, un de ces arbres étant l'arbre de lancement d'un mécanisme pas à pas (10; 131), la came de commande (15; 134, 135) étant prévue de préférence sur l'arbre d'entrée du mécanisme pas à pas (10,131).
10. Dispositif d'impression selon l'une des revendications 1 à 9, caractérisé en ce que le premier élément est constitué de deux éléments individuels (108, 109) qui sont désaxés l'un par rapport à l'autre en direction du premier axe de rotation (112, 114), qu'au moins une surface de transfert d'impression (115', 116') est prévue respectivement sur les côtés (110,111 se faisant face, des deux éléments individuels (108, 109) du premier élément, que les surfaces de transfert d'impression (115', 116'), se faisant face et qui sont au moins deux, peuvent être déplacées, dans le sens inverse au sens de rotation du premier axe de rotation (112, 114), de la position de repos, dans laquelle lesdites surfaces de transfert d'impression (115', 116') se faisant face présentent entre elles un espace relativement important, à la position de travail, dans laquelle les surfaces de transfert d'impression (115', 116') présentent entre elles un espace relativement faible, que le deuxième élément (118) comporte au moins un bloc d'impression (121) respectivement sur deux zones de surface (119, 120) opposées, que la trajectoire des deux zones de surface (119, 120) du deuxième élément (118), comportant chacune au moins un bloc d'impression (121), s'étend dans une section partielle située entre les trajectoires des surfaces de transfert d'impression (115', 116'), qui sont au moins deux, et que deux plans d'impression sont formés entre les trajectoires des surfaces de transfert d'impression (115', 116'), dispositif dans lequel le premier élément individuel (108) du premier élément est fixé de préférence sur un arbre creux (112) et le deuxième élément individuel (109) du premier élément sur un arbre (114) qui pénètre au moins partiellement dans l'arbre creux (112), et l'arbre creux (112) est monté en rotation et de manière à pouvoir se déplacer axialement sur le bâti de machine (103, 113) et l'arbre (114) du deuxième élément individuel (109) est monté en rotation et de manière à pouvoir se déplacer axialement dans cet arbre creux et/ou sur le bâti de machine, et/ou le deuxième élément (118) est fixé de préférence sur un arbre (117) qui est monté en rotation dans le bâti de machine (103, 113), mais ne peut pas se déplacer axialement.
11. Dispositif d'impression selon la revendication 10, caractérisé en ce que le deuxième élément (118) est réalisé en forme de disque circulaire et comporte au moins un bloc d'impression (121) sur chacun des côtés frontaux (118, 120) orientés perpendiculairement au deuxième axe de rotation (117).
12. Dispositif d'impression selon la revendication 10 ou 11, caractérisé en ce qu'au moins un élément individuel (108,109) du premier élément est réalisé en forme de disque circulaire et comporte au moins une surface de transfert d'impression (115', 116') sur son côté frontal (110, 111) tourné vers l'autre élément individuel et orienté perpendiculairement au premier axe de rotation (112,114).
13. Dispositif d'impression selon l'une des revendications 10 à 12, caractérisé en ce que, dans la direction du premier axe de rotation (112, 114), au moins une surface de transfert d'impression (115') d'un élément individuel (108) fait directement face à au moins une surface de transfert d'impression (116') de l'autre élément individuel (109) du premier élément, et que les blocs d'impression (121), qui sont au moins deux, situés sur les deux zones de surface (119, 120) du deuxième élément (118) sont prévus de manière à coïncider avec le deuxième élément (118) en direction du deuxième axe de rotation.
14. Dispositif d'impression selon l'une des revendications 10 à 13, caractérisé en ce que le nombre de surfaces de transfert d'impression (115') du premier élément individuel (108) est égal au nombre de surfaces de transfert d'impression (116') de l'autre élément individuel (109) et/ou que le nombre de blocs d'impression (121) d'une zone de surface (119) du deuxième élément (118) est égal au nombre de blocs d'impression (121) de l'autre zone de surface (120) du deuxième élément (118).
15. Dispositif d'impression selon l'une des revendications 10 à 14, caractérisé en ce que le dispositif d'application d'encre d'impression est formé de dispositifs individuels (122, 123), dont chacun est prévu de manière stationnaire sur une zone de surface (119, 120) du deuxième élément (118).
EP86103444A 1985-03-19 1986-03-14 Dispositif d'impression Expired - Lifetime EP0195378B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86103444T ATE60282T1 (de) 1985-03-19 1986-03-14 Druckwerk.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8508103U 1985-03-19
DE19858508103 DE8508103U1 (de) 1985-03-19 1985-03-19 Druckwerk
DE8532754U 1985-11-21
DE19858532754 DE8532754U1 (de) 1985-11-21 1985-11-21 Druckwerk

Publications (3)

Publication Number Publication Date
EP0195378A2 EP0195378A2 (fr) 1986-09-24
EP0195378A3 EP0195378A3 (en) 1988-05-04
EP0195378B1 true EP0195378B1 (fr) 1991-01-23

Family

ID=25950284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103444A Expired - Lifetime EP0195378B1 (fr) 1985-03-19 1986-03-14 Dispositif d'impression

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Country Link
US (1) US4738198A (fr)
EP (1) EP0195378B1 (fr)
DE (1) DE3677031D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4928587A (en) * 1988-02-26 1990-05-29 Motorola Inc. Programmable pad printer
ES2075994T3 (es) * 1991-11-25 1995-10-16 Georg Binnen Maquina de imprimir en policromia mediante tampones.
US5392706A (en) * 1992-07-30 1995-02-28 Markem Corporation Pad transfer printing method
BE1008238A6 (nl) * 1994-05-02 1996-02-20 Printing International Naamloz Tampondrukmachine.
US5832835A (en) * 1996-07-12 1998-11-10 Markem Corporation Soft doctoring cup
FR2871100B1 (fr) * 2004-06-03 2006-09-22 Essilor Int Procede et dispositif de marquage d'une lentille ophtalmique
DE102008046487A1 (de) * 2008-09-09 2010-03-11 Itw Morlock Gmbh Tampondruckmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060031A (en) * 1969-08-02 1977-11-29 Wilfried Philipp Printing method and apparatus for performing the printing method
US3688695A (en) * 1970-02-25 1972-09-05 Murray Curvex Printing Ltd Method of offset printing or decorating an article with thermoplastic color
US3742843A (en) * 1970-12-17 1973-07-03 Koninkl Sphinx Ceramique Nv Apparatus for simultaneously decorating both sides of a three dimensional article
FR2206705A5 (fr) * 1972-11-10 1974-06-07 Braud & Faucheux
JPS56866A (en) * 1979-06-15 1981-01-07 Matsushita Electric Ind Co Ltd Electrically conductive paint
DE3335230A1 (de) * 1983-09-29 1985-04-11 Wilfried 7014 Kornwestheim Philipp Tampondruckmaschine
DE8331500U1 (de) * 1983-11-03 1984-02-02 TAMPOflex GmbH, 7257 Ditzingen Klischee fuer einen klischeehalter einer tampondruckmaschine

Also Published As

Publication number Publication date
US4738198A (en) 1988-04-19
EP0195378A3 (en) 1988-05-04
EP0195378A2 (fr) 1986-09-24
DE3677031D1 (de) 1991-02-28

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