EP2125371B1 - Tape marking machine - Google Patents
Tape marking machine Download PDFInfo
- Publication number
- EP2125371B1 EP2125371B1 EP08787824.5A EP08787824A EP2125371B1 EP 2125371 B1 EP2125371 B1 EP 2125371B1 EP 08787824 A EP08787824 A EP 08787824A EP 2125371 B1 EP2125371 B1 EP 2125371B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- marking
- tape
- machine
- ribbon
- braking surface
- 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.)
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
- B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
- B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
- B41F19/064—Presses of the reciprocating type
- B41F19/068—Presses of the reciprocating type motor-driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
-
- 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
- B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
-
- 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
- B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
- B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
- B41F17/18—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on curved surfaces of articles of varying cross-section, e.g. bottles, lamp glasses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
- B41J17/22—Supply arrangements for webs of impression-transfer material
- B41J17/24—Webs supplied from reels or spools attached to the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
- B41J17/28—Arrangements of guides for the impression-transfer material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/10—Mechanisms in which power is applied to web-roll spindle
- B65H18/103—Reel-to-reel type web winding and unwinding mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/30—Arrangements for accumulating surplus web
- B65H20/32—Arrangements for accumulating surplus web by making loops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
- B65H23/10—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on running web
- B65H23/14—Tensioning rollers applying braking forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2219/00—Printing presses using a heated printing foil
- B41P2219/40—Material or products to be decorated or printed
- B41P2219/43—Three-dimensional articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/35—Ropes, lines
- B65H2701/357—Marking strings, e.g. pre-inked lines
Definitions
- the present invention relates to a hot stamping machine, of the type comprising a marking member for pressing a tape against the peripheral surface of individual pieces for marking.
- the marking member In the case of marking with a punch movable in translation relative to the frame of the machine during marking, or a marking wheel, the marking member is pressing the tape against the peripheral surface of the part to be marked driven in rotation.
- the ribbon is then moved opposite the marking member, by uncoiling with respect to a fixed unwinding flange relative to the frame of the machine and rewinding on a rewinding flange also fixed relative to the frame of the machine. machine, an appropriate tension of the ribbon being obtained between these two flanges by means of a constant tension device, such as a spring drumming arm.
- a good ribbon tension is all the more important for a ribbon of small width, which is particularly sensitive to vibrations or other disturbances likely to change its position relative to the marking member.
- a constant tension device such as a drummer arm generates, because of its inertia, and when the ribbon is of small width and the high marking rate, a jerky advance of the ribbon opposite the marking member, with a variation of the ribbon tension.
- a variation in the tension of the ribbon may cause the appearance of marking defects on the parts.
- the ribbon rewinding flange When the ribbon rewinding flange is loaded with the mobile punch relative to the machine frame during marking, or when the marking is made with a marking punch fixed relative to the frame during marking, the ribbon is conventionally fixed facing the punch during marking, the part to be marked being moved in contact with the punch, so as to compress the ribbon between the punch and its peripheral surface.
- the tape then undergoes deformation stresses at the time of its rewinding which, for a small width of the tape and a high marking rate, are likely to degrade the tape.
- US-A-3,718,517 on which is based the preamble of claim 1, describes a hot stamping machine for marking at least partially cylindrical parts.
- the machine comprises a turntable provided with six mandrels, each intended to receive a part.
- the machine also comprises two marking heads, each marking head being movable in vertical and horizontal translation relative to the frame of the machine. For each marking head, marking is achieved by heating and compressing a respective tape between the marking head and the peripheral surface of a part to be marked.
- the machine further comprises unwinding means for each ribbon and a drive cylinder of the two ribbons.
- DE-U-94 20 707 discloses a hot stamping machine comprising a marking cylinder and a counter-cylinder, which delimit between them a marking space.
- the marking cylinder is equipped with a marking die for pressing, in the marking space, a tape against a strip of material to be marked.
- the running speed of the ribbon in the marking space is controlled by a rotary suction cylinder disposed upstream of the marking space. More specifically, the ribbon cooperates without sliding with the upstream rotary cylinder, whose rotation is controlled by a motor, and is pulled constantly by a pulling device disposed downstream of the marking space.
- the upstream rotary cylinder is able to reduce or increase the speed of travel of the ribbon in the marking space with respect to the pulling speed imposed by the downstream drawing device.
- Such control of the running speed of the ribbon by a motorized upstream rotary cylinder is effective when the ribbon scrolls continuously in the marking space, the scroll simply being accelerated or decelerated.
- the use of a motorized rotary cylinder upstream of the marking space is no longer suitable . Indeed, the ribbon should then be accelerated quickly from zero speed.
- the invention intends to remedy more particularly by proposing a marking machine with a fixed or mobile marking member, making it possible to obtain good reliability and good quality of marking, even for weak ribbon widths. and high marking rates.
- the subject of the invention is a hot stamping machine, of the type comprising a marking member intended to press a tape against the peripheral surface of individual pieces for their marking, the individual pieces being positioned successively in a post marking and marked by repetition of a marking sequence for each piece, the machine comprising means for unwinding the ribbon, and means for rewinding the ribbon.
- the rewinding means are intended to unwind a tape length sequentially at the end of each marking sequence for the next marking sequence.
- the machine comprises a ribbon suction box and a ribbon braking surface, the braking surface having a fixed orientation relative to the machine frame during each marking sequence, the ribbon from the means of unwinding successively passing into the suction box, along the braking surface and facing the marking member, so that a reserve ribbon is available in the suction box between the unwinding means and the braking surface, while the ribbon is stretched facing the marking member between the braking surface and the rewinding means.
- the marking machine 1 shown in Figures 1 to 4 , is intended for marking at least partially cylindrical parts 2, made of plastic material.
- the parts 2 may be cosmetic product packages.
- the machine 1 comprises a main frame 3, which supports an upper rail 4 substantially horizontal.
- a heating head 5 marking is slidably mounted relative to the rail 4.
- the marking head 5 is movable in translation relative to the frame 3, parallel to a longitudinal axis Y 4 of the rail 4, under the action of drive means not shown associated with a motor 40.
- the marking head 5 is equipped with a flat punch 6, made of metal or silicone, which defines patterns to be marked on the pieces 2.
- the marking of each piece 2 is achieved by heating and compressing a metallized ribbon 7 between the punch 6 and the outer peripheral surface 2A of the workpiece 2.
- the machine 1 comprises a plate 8 rotating in the direction of the arrow F 1 of the figure 1 around an axis X 8 substantially horizontal and perpendicular to the axis Y 4 .
- the plate 8 can rotate in the opposite direction to that shown on the figure 1 .
- the plate 8 is as described in the document EP-A-1,518,675 .
- the plate 8 is provided with six cylindrical mandrels 9 of circular section, intended to each receive a part 2. Each mandrel 9 is rotatably mounted on a support 10, about an axis X 9 substantially parallel to the axis X 8 .
- the mandrels 9 can occupy successively six separate positions.
- the upper position, occupied by the chuck noted 9A on the Figures 1 to 4 corresponds to a marking station of the part 2 mounted on the mandrel 9A.
- the station located on the left of the marking station, which is occupied by the mandrel noted 9B on the Figures 1 to 4 may correspond to a locating station of one or more particular points of the part 2 mounted on the mandrel 9B, for example by means of a not shown marker camera.
- the other stations may correspond to loading and unloading stations of parts 2 compared to mandrels 9.
- each mandrel 9 is supported by rails 11.
- the support 10 of this mandrel is able to slide vertically along the rails 11 relative to the plate 8 and the frame 3, as shown by the arrow F 2 of the figure 1 .
- each mandrel 9 is able, when it is at the marking station, to move the part 2 that it supports with respect to the frame 3, both in rotation about the axis Xg and in translation parallel to an axis vertical Z.
- the sliding of the support 10 relative to the rails 11 is not allowed and the support 10 is immobilized near the center of the plate 8.
- the figure 1 shows the arrangement of the constituent elements of the machine 1 prior to the marking of the part 2 carried by the mandrel 9A at the marking station.
- the ribbon 7 then extends opposite the punch 6, between a flange 12 unwinding the ribbon 7 and a flange 17 rewinding the ribbon 7.
- upstream and downstream refer to the meaning running the ribbon 7 on the machine 1, from the flange 12 to the flange 17.
- the unwinding flange 12 is associated with a motorized driving cylinder 13, disposed downstream of the flange 12 and able to actuate by its rotation the unwinding of the ribbon 7 relative to the flange 12, the ribbon 7 being pressed against the driving cylinder 13 by a
- the rewinding flange 17 is associated with a motorized driving cylinder 16 disposed upstream of the flange 17 and against which the ribbon 7 is pressed by means of a pressure roller 15, so that the rotation of the driving cylinder 16 actuates the rewinding of the ribbon 7 around the flange 17.
- the motors equipping the driving cylinders 13 and 16 are brushless type motors, adapted to be selectively controlled by a control unit not shown in FIG. the machine 1, depending on the desired unwinding and rewinding of the ribbon 7.
- the machine 1 comprises a suction box 18, arranged vertically above the unwinding means 12-14.
- the box suction device 18 is provided for sucking the tape 7 at the exit of the unwinding means 12-14, so that the ribbon 7 forms a bend inside the box 18.
- the machine 1 comprises a cylinder brake 19 defining a braking surface 19A disposed in the vicinity of the punch 6 and around which the ribbon 7 is partially wound at the outlet of the suction box 18.
- the braking surface 19A formed by the braking cylinder 19 is fixed in rotation relative to the frame 3 of the machine 1 during each marking sequence.
- the machine 1 also comprises five 20-24 cylindrical strippers, the ribbon 7 passing around the strippers 20 and 21 between the suction box 18 and the brake cylinder 19, and around the strippers 22, 23 and 24 between the brake cylinder 19 and the rewinding means 15-17.
- the brake cylinder 19, the strippers 23 and 24 and the rewinding means 15-17 are embarked with the marking head 5, that is to say are moved in translation parallel to the axis longitudinal Y 4 of the rail 4 at the same time as the marking head 5, under the action of the drive means associated with the motor 40.
- the suction box 18 is substantially parallelepipedic and delimited by a bottom wall 181, from which extend two side walls 183 opposite and two front and rear walls 185 opposite.
- a fan 182 is provided to create a vacuum inside the box 18, so as to produce a suction effect of the ribbon 7 towards the inside of the box 18.
- the ribbon 7 enters the box 18 through a opening 184 of the box 18, opposite to the bottom wall 181.
- Two strippers 186 arranged in the vicinity of the opening 184, are intended to confine the ribbon 7 sucked inside the box 18 against the two side walls 183 opposite.
- the ribbon 7 is not taut, just enough to withstand its own weight between the elements 12-14, on the one hand, and the braking surface 19A , on the other hand.
- the tension of the ribbon 7 between the elements 12-14 and the surface 19A is called the proper tension of the ribbon 7.
- the suction box 18 also has an internal wall, not visible in the figures, which is parallel to the front and rear walls 185 and slidably movable inside the box 18, parallel to these walls 185.
- the depth of the suction box 18 available for the ribbon 7 can thus be modulated according to the width of the ribbon 7 used, so as to guarantee its confinement between the side walls 183, the front wall 185 and the inner wall of the ribbon. suction box 18.
- the positioning of the ribbon 7 inside the suction box 18 is thus perfectly determined, which is particularly advantageous in the case of a ribbon 7 of small width, easily movable under the effect vibrations or other disturbances occurring on the machine 1.
- the wall portions of the suction box 18 intended to be in contact with the ribbon 7 are made of aluminum.
- these wall portions may be made of any other material unlikely to be electrified due to friction with the ribbon 7.
- the box 18 may be made of a transparent material, such as polycarbonate or plexiglass coated internally with Teflon or aluminum at the walls of contact with the ribbon 7.
- the suction box 18 is also equipped with a detection cell 188, intended to detect the presence of the ribbon 7 in its field of vision.
- the cell 188 is disposed at a side opening 189 of the box 18, a glass wall of the cell 188 closing the opening 189.
- the signal from the cell 188 is advantageously transmitted to the brushless motor associated with the driving cylinder 13 , so that the unwinding of the ribbon 7 is stopped when the cell 188 detects the presence of the ribbon 7.
- the dimensions of the box 18 and the positioning of the cell 188 are adapted so as to guarantee a sufficient reserve of tape 7 inside the box 18 for each marking sequence.
- the detection cell 188 may be replaced by a distance measuring cell disposed at the bottom wall 181 of the box 18. Such a cell is then also connected to the brushless motor associated with the driving cylinder 13, of such so that a sufficient reserve of ribbon 7 is available inside the box 18 for each marking sequence.
- the cell 188 may also be associated with a second detection cell with a minimum length of ribbon 7 inside the box 18, connected to the brushless motor equipping the drive cylinder 13 so that the unwinding of the ribbon 7 is actuated. when this second cell no longer detects the presence of the ribbon 7. A minimum length of ribbon 7 can thus be maintained inside the suction box 18.
- the brushless motor equipping the drive cylinder 13 tape unwinding 7 may be replaced by an asynchronous motor associated with a control unit adapted to process the information from the detection cell 188 and regulate the output speed of the asynchronous motor based on this information.
- the motorization of the uncoiling means can also be directly associated with the unwinding plate 12, the rotation speed at the motor output being adapted according to the information from the sensor cell and the unwinding state of the sensor. ribbon 7 with respect to the flange 12. In this latter variant, the presence of the drive roller 13 and the pressure roller 14 is no longer necessary.
- the brake cylinder 19 visible on a larger scale on the Figures 5 and 6 , comprises a tubular casing 191, centered on an axis X 19 and in which is housed a hollow body 193 of substantially complementary shape to that of the casing 191.
- a first end 191A of the casing 191 is provided with a nozzle connection to a source of depression, such as, by way of non-limiting examples, a Venturi pipe, a vacuum source or a fan, this end opening into the interior of the hollow body 193.
- the second end 191B of the casing 191, opposite the end 191A, is closed by a corresponding end portion 193B of the body 193 fitted into the casing 191.
- a depression can be created inside the body 193.
- the casing 191 is provided with through orifices 192 on a portion 19A of its outer peripheral surface forming the braking surface of the cylinder 19, corresponding through apertures 194 being also provided in the body 193.
- the orifices 194 are formed in two flats 195 of the body 193, which extend over an angular sector of apex angle substantially equal to that defined by the braking surface 19A.
- the orifices 194 When the orifices 194 are disposed vertically above the orifices 192, the latter communicate with the interior of the body 193.
- the ribbon 7 wound partially around the casing 191 of the cylinder 19 is retained against the surface 19A due to the suction generated at the openings 192.
- the body 193 In order to modulate the suction force exerted by the braking surface 19A on the ribbon 7, the body 193 is able to rotate inside the casing 191 about the X axis 19 . It is thus possible to angularly offset the orifices 194 of the body 193 relative to the suction orifices 192 of the ribbon 7 to vary the flow of air through the orifices 192. In addition, it is possible to rotate the envelope 191 relative to the frame 3 of the machine 1 around the X axis 19 , so as to change the orientation of the braking surface 19A relative to the frame, for example in the context of an adjustment between two marking sequences . The interaction between the braking surface 19A and the ribbon 7 can thus be modified according to the marking characteristics, and in particular the profile of the parts to be marked.
- the ribbon 7 can be tensioned in an adjustable manner, and without undesirable effects of inertia, between the surface 19A and the rewinding means 15. 17, regardless of the unwinding state of the ribbon 7 upstream of the surface 19A.
- the combination of the suction box 18, disposed at the output of the motorized unwinding means 12-14, and the braking surface 19A thus makes it possible to supply a supply of ribbon 7 with a low voltage upstream of the braking surface 19A, while maintaining a ribbon tension 7 satisfactory for marking downstream of the braking surface 19A.
- the punch 6 carried by the marking head 5 is moved in translation relative to the frame 3, parallel to the longitudinal axis Y 4 of the rail 4 and towards the workpiece 2 to mark, as shown by the arrow F 3 to figures 2 and 3 .
- the brake cylinder 19, the strippers 23 and 24 and the rewinding means 15-17, which are integral in translation with the marking head 5, are then also moved parallel to the axis Y 4 .
- the ribbon 7 is thus unwound out of the suction box 18 and scrolled relative to the frame 3 in the direction of the arrow F 4 of the figure 3 , with a speed equal to the translational speed of the punch 6 relative to the frame 3.
- the part 2 is rotated about the axis X 9 of the mandrel 9A, in the direction of the arrow F 5 of the figure 3 .
- the punch 6 comes into contact with the workpiece 2
- the ribbon 7 is pressed, while being heated, against the outer peripheral surface 2A of the part 2 driven in rotation, which allows the marking of the workpiece 2.
- a sliver of ribbon is advantageously provided, at beginning of the marking, by a return of the brushless motor associated with the rewinding means 15-17.
- the punch 6 is on the left of the piece 2, as visible on the figure 4 .
- the mandrel 9A which turns on itself about the axis X 9 , is then moved vertically towards the center of the plate 8, by sliding its support 10 along the rails 11 in the direction of the arrow F 6 of the figure 4 .
- the plate 8 is pivoted in the direction of the arrow F 1 of the figure 1 , the synchronization of the movements of the mandrel 9A and the plate 8 being obtained by means of a control unit not shown.
- the marking head 5 provided with the punch 6, the braking cylinder 19, the rewinding means 15-17 and the strippers 23 and 24 are then also moved to their initial position, by a translation parallel to the Y axis 4 in the direction of arrow F 7 of the figure 4 .
- the used ribbon 7 is rewound around the rewinding flange 17, while a ribbon length is unwound with respect to the flange 12 and set aside for another marking sequence, by actuating the engine associated with the cylinder 13.
- the heated strip 7 tends to adhere with respect to the surface 2A of the part 2 carried by the mandrel 9A.
- the ribbon 7 thus undergoes a slight pull in the direction of movement of the workpiece.
- This traction of the ribbon 7 at the end of the marking generates a disruptive sliver of tape 7 between the braking surface 19A and the rewinding means 15-17.
- This ribbon disordering slack 7 is resumed during the rewinding of the tape 7 consecutive marking.
- this slack disordering slack 7 can also be resumed by momentarily deactivating the suction of the braking surface 19A, so that the disturbing slack is swallowed in the suction box 18.
- the turntable 8 has, by its rotation in the direction of the arrow F 1 of the figure 1 positioned the mandrel 9B at the marking station.
- the marking of the part 2 carried by the mandrel 9B is obtained by repeating the previously described steps for the marking of the part 2 carried by the mandrel 9A.
- the guidance of the ribbon 7 on the machine 1 according to this first embodiment of the invention makes it possible to mark each part 2 with good reliability and good marking quality, even for a width of the ribbon 7 low, in particular between about 8 mm and 25 mm, and a high marking rate, for example greater than 3000 pieces per hour, in particular greater than 6000 pieces per hour, produced with a single marking head.
- the combination of the suction box 18, disposed at the output of the motorized unwinding means 12-14, and the braking surface 19A makes it possible to guarantee a satisfactory tension of the strip 7 opposite the punch 6, adapted to its function.
- the tension of the ribbon 7 is satisfactory for marking when it allows height guidance and lateral guidance of the ribbon.
- the marking machine 201 complies with this second embodiment comprises a heating head 205 marking, fixed relative to a frame 203 of the machine 201.
- a marking wheel 206 silicone is rotatably mounted on the marking head 205, about an axis X 206 substantially horizontal and perpendicular to the plane of the figure 7 .
- the wheel 206 bears reliefs to mark on parts at least partially cylindrical 202, the marking of each piece 202 being made by heating and compression of a metallized strip 207 between the wheel 206 and the outer peripheral surface 202A of the part 202.
- the machine 201 comprises a turntable 208, similar to the plate 8 of the first embodiment and designed to rotate between two marking sequences around an axis X 208 substantially parallel to the axis X 206 .
- the plate 208 is provided with six cylindrical mandrels 209 of circular section, intended to each receive a part 202.
- Each mandrel 209 is rotatably mounted on a support 210, about a substantially parallel axis X 209 to the X axes 206 and X 208 , each support 210 being supported by rails 211.
- a mandrel 209 is only allowed when the mandrel 209 is in the vicinity of a marking station, which is occupied by the chuck 209A on the figure 7 .
- a mandrel 209 is able to move the part 202 which it carries relative to the frame 203, both in rotation about the axis X 209 and in translation parallel to a vertical axis Z.
- the figure 7 shows the arrangement of the constituent elements of the machine 201 prior to the marking of the part 202 carried by the mandrel 209A at the marking station.
- the wheel 206 is then disposed vertically above this part 202, the ribbon 207 extending between the wheel 206 and the part 202, from motorized means for unwinding the ribbon 207, comprising a flange 212 unwinding, a driving cylinder 213 and a pressure roller 214, to motorized tape rewinding means 207, comprising a rewinding flange 217, a driving cylinder 216 and a pressure roller 215, similarly to the first embodiment.
- the machine 201 also includes a suction box 218, disposed vertically above the unwinding means 212-214, and a brake cylinder 219 defining a braking surface 219A disposed in the vicinity of the wheel 206 and around which the ribbon 207 is wound partially in the outlet of the suction box 218.
- the braking surface 219A formed by the braking cylinder 219 is fixed in rotation relative to the frame 203 of the machine during each sequence of marking.
- the course of the tape 207 is also guided by unreferenced strippers, the set of means 212-219 for managing the ribbon 207 being fixed relative to the frame 203 of the machine 201.
- the combination of the suction box 218, disposed at the output of the motorized unwinding means 212-214, and the braking surface 219A is intended to provide a supply of tape 207 without any voltage other than its own voltage upstream of the braking surface 219A while maintaining a ribbon tension 207 satisfactory for marking downstream of the braking surface 219A.
- the suction box 218 and the braking surface 219A do not introduce any undesirable inertia effect.
- Ribbon scrolling 207 results from the unwinding of the tape 207 out of the suction box 208 and the rewinding of the tape by the rewinding means 215-217.
- a supply of ribbon without tension other than its own tension is maintained in the suction box 218 for each marking sequence, similarly to the first embodiment.
- the ribbon 207, interposed between the wheel 206 and the part 202, is pressed, while being heated, between the peripheral surface of the wheel 206 and the peripheral surface 202A of the part 202 driven in rotation, which allows the marking of the room 202.
- a sliver of ribbon is advantageously provided, at the beginning of the marking, by generating a delay in the draw of the ribbon 207 or a temporary stopping of the ribbon draw 207 by the rewinding means 215-217, with the aid of an appropriate engine control associated with the means 215-217.
- the mandrel 209A which rotates about itself about the axis X 209 , is moved vertically towards the center of the plate 208, by sliding its support 210 along the rails 211, which distances the part 202 of the wheel 206.
- the plate 208 is also pivoted, the synchronization of the movements of the mandrel 209A and the plate 208 being obtained by means of a not shown control unit.
- the heated ribbon 207 tends to adhere with respect to the surface 202A of the workpiece 202.
- the tape 207 thus undergoes a slight pull in the direction of movement of the workpiece.
- This traction of the tape 207 at the end of the marking generates a ribbon disruptive slime 207 between the braking surface 219A and the rewinding means 215-217.
- This disruptive tape slack 207 is resumed by momentarily deactivating the suction of the braking surface 219A, so that the disturbing slack is swallowed in the suction box 218.
- the turntable 208 has, by its rotation, positioned another mandrel 209 at the marking station.
- a marking machine thus makes it possible to mark parts with good reliability and good quality of marking, even for a small width of the tape used and a high marking rate.
- the suction box disposed at the output of motorized unwinding means, and the braking surface.
- the reserve of ribbon with a low voltage formed inside the suction box makes it possible to overcome the inertia proper to the unwinding means and to obtain a scroll with a substantially constant tension of the ribbon opposite the marking member, while the braking surface is necessary to ensure a satisfactory tension of the ribbon portion passing next to the marking member.
- This ribbon tension is obtained without undesirable inertia effects, unlike the tension that would be obtained with a constant tension device, such as a spring-loaded mixing arm.
- a marking machine comprising a suction box disposed at the output of motorized unwinding means and a braking surface
- the supply of ribbon in the suction box has a relatively low first voltage
- the ribbon has a second voltage higher than the first voltage between the braking surface and the rewinding means, this second voltage being satisfactory for marking parts.
- the suction box and the braking surface do not introduce any undesirable inertia effect.
- a hot stamping machine comprising a suction box disposed at the output of motorized unwinding means and a braking surface, can be applied to the marking of non-circular cross section pieces, the profile and the kinematics of supporting mandrels of such parts being adapted accordingly.
- a marking machine according to the invention can also be implemented with individual chucks, which are not integrated on a turntable as described above and ensure proper movement of parts to mark.
- the kinematics imparted to the elements of the marking machine may be different from that described and shown.
- the punch in the case of a flat punch, the punch can be fixed in translation relative to the frame of the machine during marking, the piece to be marked then being moved both in rotation and in translation relative to the punch during marking.
- the combination of the suction box and the braking surface is then used to reduce the deformation stresses experienced by the ribbon during its rapid rewinding, in the case of high marking rates.
- the movement of contacting the marking member with a part to be marked can be supported by the marking member, and not by the support chuck of the piece.
- the marking member 6 or 206 can thus be provided to move vertically, the vertical movement of the mandrels 9 or 209 then no longer necessary.
- the various elements 12-19 management of the ribbon can be embedded or not with the punch, independently from each other or simultaneously. It can thus be envisaged that only the braking surface is embarked with the punch in the first embodiment, while the rewinding means 15-17 are fixed relative to the frame of the machine. Conversely, it is possible to embark only the rewinding means 15-17 with the punch, the braking surface being kept fixed.
- the unwinding means 12-14 and the suction box 18 can also be embarked with the punch when the braking surface is itself embarked.
- Scrolling tape next to the punch is adapted to each configuration, by appropriate programming of the means of unwinding and rewinding ribbon.
- the tape running sequence during a marking sequence with a plane punch is, for a machine configuration marking in which the unwinding means 12-14 and rewinding 15-17 of the tape are fixed relative to the frame of the machine, the same as that described in the second embodiment involving the marking wheel 206.
- the relative position of the ribbon guiding elements shown in the first and second embodiments may also be modified, the suction box may for example be arranged horizontally relative to the uncoiling means, or below these means of unwinding.
- the braking surface of the ribbon formed by the braking cylinder in the examples described, may also be of any shape other than a portion of a cylinder, in particular a plane.
- this braking surface can be integrated inside the suction box, being formed for example by a wall of the suction box. Such an arrangement is more compact and reduces the size of the marking machine.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Labeling Devices (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Making Paper Articles (AREA)
- Duplication Or Marking (AREA)
- Treatment Of Fiber Materials (AREA)
Description
La présente invention a trait à une machine de marquage à chaud, du type comprenant un organe de marquage destiné à presser un ruban contre la surface périphérique de pièces individuelles pour leur marquage.The present invention relates to a hot stamping machine, of the type comprising a marking member for pressing a tape against the peripheral surface of individual pieces for marking.
Dans le domaine du marquage, il est connu de réaliser des motifs décoratifs sur une pièce en matériau plastique, par exemple des liserés métallisés, au moyen d'une machine de marquage dans laquelle un ruban est pressé entre un organe de marquage chauffé comportant les motifs à réaliser sur la pièce et la surface périphérique de cette pièce. Lorsque les motifs à réaliser sont fins, la largeur du ruban utilisé pour le marquage est choisie la plus faible possible, afin de limiter la surface de ruban à mettre au rebut après chaque marquage et ainsi de réduire le coût associé au marquage. Or, la prise en charge d'un ruban de faible largeur sur une machine de marquage est délicate.In the field of marking, it is known to produce decorative patterns on a piece of plastic material, for example metallised borders, by means of a marking machine in which a ribbon is pressed between a heated marking member having the patterns to be made on the piece and the peripheral surface of this piece. When the patterns to be made are thin, the width of the ribbon used for the marking is chosen as low as possible, in order to limit the area of tape to be discarded after each marking and thus reduce the cost associated with marking. However, the management of a ribbon of small width on a marking machine is delicate.
Dans le cas d'un marquage avec un poinçon mobile en translation par rapport au bâti de la machine au cours du marquage, ou une roue de marquage, l'organe de marquage vient presser le ruban contre la surface périphérique de la pièce à marquer entraînée en rotation. De manière classique, le ruban est alors déplacé en regard de l'organe de marquage, par débobinage par rapport à un flasque de débobinage fixe par rapport au bâti de la machine et rembobinage sur un flasque de rembobinage également fixe par rapport au bâti de la machine, une tension appropriée du ruban étant obtenue entre ces deux flasques au moyen d'un dispositif de tension constante, tel qu'un bras batteur à ressort. Une bonne tension du ruban est d'autant plus importante pour un ruban de faible largeur, qui est particulièrement sensible aux vibrations ou autres perturbations susceptibles de modifier sa position par rapport à l'organe de marquage. Or, un dispositif de tension constante tel qu'un bras batteur génère, du fait de son inertie, et lorsque le ruban est de faible largeur et la cadence de marquage élevée, une avance saccadée du ruban en regard de l'organe de marquage, avec une variation de la tension du ruban. Une telle variation de la tension du ruban peut entraîner l'apparition de défauts de marquage sur les pièces.In the case of marking with a punch movable in translation relative to the frame of the machine during marking, or a marking wheel, the marking member is pressing the tape against the peripheral surface of the part to be marked driven in rotation. In a conventional manner, the ribbon is then moved opposite the marking member, by uncoiling with respect to a fixed unwinding flange relative to the frame of the machine and rewinding on a rewinding flange also fixed relative to the frame of the machine. machine, an appropriate tension of the ribbon being obtained between these two flanges by means of a constant tension device, such as a spring drumming arm. A good ribbon tension is all the more important for a ribbon of small width, which is particularly sensitive to vibrations or other disturbances likely to change its position relative to the marking member. However, a constant tension device such as a drummer arm generates, because of its inertia, and when the ribbon is of small width and the high marking rate, a jerky advance of the ribbon opposite the marking member, with a variation of the ribbon tension. Such a variation in the tension of the ribbon may cause the appearance of marking defects on the parts.
Lorsque le flasque de rembobinage du ruban est embarqué avec le poinçon mobile par rapport au bâti de la machine au cours du marquage, ou lorsque le marquage est réalisé avec un poinçon de marquage fixe par rapport au bâti au cours du marquage, le ruban est classiquement fixe en regard du poinçon lors du marquage, la pièce à marquer étant déplacée au contact du poinçon, de manière à comprimer le ruban entre le poinçon et sa surface périphérique. Le ruban subit alors des contraintes en déformation au moment de son rembobinage qui, pour une largeur faible du ruban et une cadence élevée de marquage, sont susceptibles de dégrader le ruban.When the ribbon rewinding flange is loaded with the mobile punch relative to the machine frame during marking, or when the marking is made with a marking punch fixed relative to the frame during marking, the ribbon is conventionally fixed facing the punch during marking, the part to be marked being moved in contact with the punch, so as to compress the ribbon between the punch and its peripheral surface. The tape then undergoes deformation stresses at the time of its rewinding which, for a small width of the tape and a high marking rate, are likely to degrade the tape.
Par ailleurs,
C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant une machine de marquage à organe de marquage fixe ou mobile, permettant d'obtenir une bonne fiabilité et une bonne qualité du marquage, même pour des largeurs de ruban faibles et des cadences de marquage élevées.It is these drawbacks that the invention intends to remedy more particularly by proposing a marking machine with a fixed or mobile marking member, making it possible to obtain good reliability and good quality of marking, even for weak ribbon widths. and high marking rates.
A cet effet, l'invention a pour objet une machine de marquage à chaud, du type comprenant un organe de marquage destiné à presser un ruban contre la surface périphérique de pièces individuelles pour leur marquage, les pièces individuelles étant positionnées successivement dans un poste de marquage et marquées par répétition d'une séquence de marquage pour chaque pièce, la machine comprenant des moyens de débobinage du ruban, et des moyens de rembobinage du ruban. Conformément à l'invention, les moyens de rembobinage sont destinés à débobiner une longueur de ruban de manière séquentielle à la fin de chaque séquence de marquage en vue de la séquence de marquage suivante. En outre, la machine comprend une boîte d'aspiration du ruban et une surface de freinage du ruban, la surface de freinage ayant une orientation fixe par rapport au bâti de la machine au cours de chaque séquence de marquage, le ruban issu des moyens de débobinage passant successivement dans la boîte d'aspiration, le long de la surface de freinage et en regard de l'organe de marquage, de telle sorte qu'une réserve de ruban est disponible dans la boîte d'aspiration entre les moyens de débobinage et la surface de freinage, alors que le ruban est tendu en regard de l'organe de marquage entre la surface de freinage et les moyens de rembobinage.For this purpose, the subject of the invention is a hot stamping machine, of the type comprising a marking member intended to press a tape against the peripheral surface of individual pieces for their marking, the individual pieces being positioned successively in a post marking and marked by repetition of a marking sequence for each piece, the machine comprising means for unwinding the ribbon, and means for rewinding the ribbon. According to the invention, the rewinding means are intended to unwind a tape length sequentially at the end of each marking sequence for the next marking sequence. In addition, the machine comprises a ribbon suction box and a ribbon braking surface, the braking surface having a fixed orientation relative to the machine frame during each marking sequence, the ribbon from the means of unwinding successively passing into the suction box, along the braking surface and facing the marking member, so that a reserve ribbon is available in the suction box between the unwinding means and the braking surface, while the ribbon is stretched facing the marking member between the braking surface and the rewinding means.
Selon d'autres caractéristiques avantageuses de l'invention, prises isolément ou selon toutes les combinaisons techniquement possibles :
- la surface de freinage est une surface percée d'orifices d'aspiration du ruban ;
- la surface de freinage est formée par un cylindre de freinage autour duquel le ruban s'enroule partiellement ;
- le cylindre de freinage comporte une enveloppe externe formant la surface de freinage et un corps interne creux, logé dans l'enveloppe et relié à une source de dépression, l'enveloppe étant percée d'orifices d'aspiration du ruban au niveau de la surface de freinage, propres à communiquer avec l'intérieur du corps creux à travers des orifices correspondants du corps, les orifices du corps étant aptes à être décalés angulairement par rapport aux orifices de l'enveloppe, de manière à moduler l'effort d'aspiration exercé par la surface de freinage sur le ruban ;
- les moyens de débobinage sont motorisés, la machine comprenant des moyens de détection de la longueur de ruban disponible entre les moyens de débobinage et la surface de freinage, ces moyens de détection étant reliés à la motorisation des moyens de débobinage de manière à moduler la longueur de ruban précitée ;
- la boîte d'aspiration comporte des moyens de confinement du ruban contre des parois intérieures de la boîte d'aspiration ;
- l'organe de marquage est fixe en translation par rapport au bâti de la machine au cours du marquage d'une pièce, la machine comprenant des moyens de déplacement de la pièce par rapport à l'organe de marquage, qui la déplacent au moins en rotation autour d'un axe au cours du marquage ;
- l'organe de marquage est mobile en translation parallèlement à un axe par rapport au bâti de la machine au cours du marquage d'une pièce, la machine comprenant des moyens de déplacement de la pièce par rapport à l'organe de marquage, qui la déplacent uniquement en rotation autour d'un axe au cours du marquage ;
- la surface de freinage a un mouvement de translation par rapport au bâti de la machine identique à celui de l'organe de marquage au cours du marquage d'une pièce ;
- les moyens de rembobinage ont un mouvement de translation par rapport au bâti de la machine identique à celui de l'organe de marquage au cours du marquage d'une pièce ;
- l'organe de marquage est un poinçon plan ou une roue de marquage.
- the braking surface is a surface pierced with suction openings of the ribbon;
- the braking surface is formed by a braking cylinder around which the ribbon is partially wound;
- the brake cylinder comprises an outer casing forming the braking surface and a hollow internal body, housed in the casing and connected to a vacuum source, the casing being pierced with suction openings of the ribbon at the surface; braking, adapted to communicate with the interior of the hollow body through the corresponding orifices of the body, the orifices of the body being able to be offset angularly relative to the orifices of the envelope, so as to modulate the suction force exerted by the braking surface on the ribbon;
- the unwinding means are motorized, the machine comprising means for detecting the length of ribbon available between the unwinding means and the braking surface, these detection means being connected to the motorization of the uncoiling means so as to modulate the length aforementioned ribbon;
- the suction box comprises means for confining the ribbon against the inner walls of the suction box;
- the marking member is fixed in translation relative to the frame of the machine during the marking of a workpiece, the machine comprising means for moving the workpiece relative to the marking member, which move at least rotation about an axis during marking;
- the marking member is movable in translation parallel to an axis relative to the frame of the machine during the marking of a workpiece, the machine comprising means for moving the workpiece relative to the marking member, which the move only in rotation about an axis during marking;
- the braking surface has a translation movement relative to the frame of the machine identical to that of the marking member during the marking of a workpiece;
- the rewinding means have a translation movement relative to the frame of the machine identical to that of the marking member during the marking of a workpiece;
- the marking member is a flat punch or a marking wheel.
Les caractéristiques et avantages de l'invention apparaîtront dans la description qui va suivre de deux modes de réalisation d'une machine de marquage selon l'invention, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés dans lesquels :
- la
figure 1 est une vue de face d'une machine de marquage conforme à un premier mode de réalisation de l'invention, entre deux séquences de marquage ; - la
figure 2 est une vue analogue à lafigure 1 , lors d'une première étape d'une séquence de marquage ; - la
figure 3 est une vue analogue à lafigure 1 , lors d'une deuxième étape d'une séquence de marquage ; - la
figure 4 est une vue analogue à lafigure 1 , lors d'une troisième étape d'une séquence de marquage ; - la
figure 5 est une coupe à plus grande échelle d'un cylindre de freinage de la machine de marquage représentée sur lesfigures 1 à 4 ; - la
figure 6 est une vue en perspective éclatée du cylindre de freinage de lafigure 5 ; et - la
figure 7 est une vue analogue à lafigure 1 pour une machine de marquage conforme à un deuxième mode de réalisation de l'invention.
- the
figure 1 is a front view of a marking machine according to a first embodiment of the invention, between two marking sequences; - the
figure 2 is a view similar to thefigure 1 during a first step of a marking sequence; - the
figure 3 is a view similar to thefigure 1 in a second step of a labeling sequence; - the
figure 4 is a view similar to thefigure 1 in a third step of a labeling sequence; - the
figure 5 is a larger-scale section of a brake cylinder of the marking machine shown on theFigures 1 to 4 ; - the
figure 6 is an exploded perspective view of the brake cylinder of thefigure 5 ; and - the
figure 7 is a view similar to thefigure 1 for a marking machine according to a second embodiment of the invention.
La machine de marquage 1, représentée aux
La machine 1 comprend un plateau 8 tournant dans le sens de la flèche F1 de la
Du fait de la rotation du plateau 8, les mandrins 9 peuvent occuper successivement six postes distincts. Le poste supérieur, occupé par le mandrin noté 9A sur les
Le support 10 de chaque mandrin 9 est supporté par des rails 11. Lorsqu'un mandrin 9 arrive au voisinage du poste de marquage, qui est occupé par le mandrin 9A sur les
La
Le flasque de débobinage 12 est associé à un cylindre entraîneur 13 motorisé, disposé en aval du flasque 12 et propre à actionner par sa rotation le débobinage du ruban 7 par rapport au flasque 12, le ruban 7 étant plaqué contre le cylindre entraîneur 13 par un galet presseur 14. De manière similaire, le flasque de rembobinage 17 est associé à un cylindre entraîneur 16 motorisé, disposé en amont du flasque 17 et contre lequel le ruban 7 est plaqué au moyen d'un galet presseur 15, de sorte que la rotation du cylindre entraîneur 16 actionne le rembobinage du ruban 7 autour du flasque 17. De manière avantageuse, les moteurs équipant les cylindres entraîneurs 13 et 16 sont des moteurs de type brushless, propres à être commandés de manière sélective par une unité de commande non représentée de la machine 1, en fonction du débobinage et du rembobinage souhaités du ruban 7.The unwinding
La machine 1 comprend une boîte d'aspiration 18, disposée verticalement au-dessus des moyens de débobinage 12-14. La boîte d'aspiration 18 est prévue pour aspirer le ruban 7 à la sortie des moyens de débobinage 12-14, de telle sorte que le ruban 7 forme un coude à l'intérieur de la boîte 18. De plus, la machine 1 comprend un cylindre de freinage 19 définissant une surface de freinage 19A, disposé au voisinage du poinçon 6 et autour duquel le ruban 7 s'enroule partiellement à la sortie de la boîte d'aspiration 18. La surface de freinage 19A formée par le cylindre de freinage 19 est fixe en rotation par rapport au bâti 3 de la machine 1 au cours de chaque séquence de marquage. La machine 1 comprend également cinq décolleurs 20-24 cylindriques, le ruban 7 passant autour des décolleurs 20 et 21 entre la boîte d'aspiration 18 et le cylindre de freinage 19, et autour des décolleurs 22, 23 et 24 entre le cylindre de freinage 19 et les moyens de rembobinage 15-17. Dans ce mode de réalisation, le cylindre de freinage 19, les décolleurs 23 et 24 et les moyens de rembobinage 15-17 sont embarqués avec la tête de marquage 5, c'est-à-dire sont déplacés en translation parallèlement à l'axe longitudinal Y4 du rail 4 en même temps que la tête de marquage 5, sous l'action des moyens d'entraînement associés au moteur 40.The
La boîte d'aspiration 18 est sensiblement parallélépipédique et délimitée par une paroi de fond 181, à partir de laquelle s'étendent deux parois latérales 183 en regard et deux parois avant et arrière 185 en regard. Un ventilateur 182 est prévu pour créer une dépression à l'intérieur de la boîte 18, de manière à produire un effet d'aspiration du ruban 7 vers l'intérieur de la boîte 18. Le ruban 7 pénètre dans la boîte 18 à travers une ouverture 184 inférieure de la boîte 18, opposée à la paroi de fond 181. Deux décolleurs 186, agencés au voisinage de l'ouverture 184, sont destinés à confiner le ruban 7 aspiré à l'intérieur de la boîte 18 contre les deux parois latérales 183 en regard. Entre les moyens de débobinage 12-14 et la surface de freinage 19A, le ruban 7 est peu tendu, de façon juste suffisante pour résister à son propre poids entre les éléments 12-14, d'une part, et la surface de freinage 19A, d'autre part. Dans ce qui suit, la tension du ruban 7 entre les éléments 12-14 et la surface 19A est dénommée tension propre du ruban 7.The
De manière avantageuse, la boîte d'aspiration 18 comporte également une paroi interne, non visible sur les figures, qui est parallèle aux parois avant et arrière 185 et déplaçable en coulissement à l'intérieur de la boîte 18, parallèlement à ces parois 185. La profondeur de la boîte d'aspiration 18 disponible pour le ruban 7 peut ainsi être modulée en fonction de la largeur du ruban 7 utilisé, de manière à garantir son confinement entre les parois latérales 183, la paroi avant 185 et la paroi interne de la boîte d'aspiration 18. Le positionnement du ruban 7 à l'intérieur de la boîte d'aspiration 18 est ainsi parfaitement déterminé, ce qui est particulièrement avantageux dans le cas d'un ruban 7 de faible largeur, facilement déplaçable sous l'effet de vibrations ou d'autres perturbations intervenant sur la machine 1.Advantageously, the
Dans ce mode de réalisation, les portions de parois de la boîte d'aspiration 18 prévues pour être en contact avec le ruban 7 sont constituées en aluminium. En variante, ces portions de parois peuvent être constituées en tout autre matériau peu susceptible d'être électrisé du fait de frottements avec le ruban 7. A titre d'exemple, la boîte 18 peut être constituée en un matériau transparent, tel que du polycarbonate ou du plexiglas, revêtu intérieurement de téflon ou d'aluminium au niveau des parois de contact avec le ruban 7. Un défilement satisfaisant du ruban 7 à l'intérieur de la boîte d'aspiration 18 est ainsi assuré, grâce à l'effet d'aspiration dû au ventilateur 182, sans risque de perturbations liées à l'apparition de charges électrostatiques à l'interface entre les parois de la boîte 18 et le ruban 7.In this embodiment, the wall portions of the
La boîte d'aspiration 18 est également équipée d'une cellule de détection 188, destinée à détecter la présence du ruban 7 dans son champ de vision. Telle que représentée sur les
En variante, la cellule de détection 188 peut être remplacée par une cellule de mesure de distance disposée au niveau de la paroi de fond 181 de la boîte 18. Une telle cellule est alors également reliée au moteur brushless associé au cylindre entraîneur 13, de telle sorte qu'une réserve suffisante de ruban 7 est disponible à l'intérieur de la boîte 18 pour chaque séquence de marquage. La cellule 188 peut également être associée à une deuxième cellule de détection d'une longueur minimale de ruban 7 à l'intérieur de la boîte 18, reliée au moteur brushless équipant le cylindre entraîneur 13 de telle sorte que le débobinage du ruban 7 est actionné lorsque cette deuxième cellule ne détecte plus la présence du ruban 7. Une longueur minimale de ruban 7 peut ainsi être maintenue à l'intérieur de la boîte d'aspiration 18. Selon une autre variante, le moteur brushless équipant le cylindre 13 d'entraînement du débobinage du ruban 7 peut être remplacé par un moteur asynchrone associé à une unité de commande propre à traiter les informations issues de la cellule de détection 188 et à réguler la vitesse de rotation en sortie du moteur asynchrone en fonction de ces informations. Dans une autre variante, la motorisation des moyens de débobinage peut également être associée directement au flasque de débobinage 12, la vitesse de rotation en sortie de moteur étant adaptée en fonction des informations issues de la cellule de détection et de l'état de débobinage du ruban 7 par rapport au flasque 12. Dans cette dernière variante, la présence du cylindre entraîneur 13 et du cylindre presseur 14 n'est plus nécessaire.In a variant, the
Le cylindre de freinage 19, visible à plus grande échelle sur les
En vue de moduler l'effort d'aspiration exercé par la surface de freinage 19A sur le ruban 7, le corps 193 est apte à tourner à l'intérieur de l'enveloppe 191 autour de l'axe X19. Il est ainsi possible de décaler angulairement les orifices 194 du corps 193 par rapport aux orifices 192 d'aspiration du ruban 7 pour faire varier le flux d'air à travers les orifices 192. En outre, il est possible de faire tourner l'enveloppe 191 par rapport au bâti 3 de la machine 1 autour de l'axe X19, de manière à changer l'orientation de la surface de freinage 19A par rapport au bâti, par exemple dans le cadre d'un réglage entre deux séquences de marquage. L'interaction entre la surface de freinage 19A et le ruban 7 peut ainsi être modifiée en fonction des caractéristiques de marquage, et notamment du profil des pièces à marquer.In order to modulate the suction force exerted by the
Grâce au freinage résultant de l'aspiration du ruban 7 au niveau de la surface 19A du cylindre 19, le ruban 7 peut être tendu de manière réglable, et sans effets d'inertie indésirables, entre la surface 19A et les moyens de rembobinage 15-17, quel que soit l'état de débobinage du ruban 7 en amont de la surface 19A. La combinaison de la boîte d'aspiration 18, disposée en sortie des moyens de débobinage 12-14 motorisés, et de la surface de freinage 19A permet donc de fournir une réserve de ruban 7 avec une faible tension en amont de la surface de freinage 19A, tout en maintenant une tension du ruban 7 satisfaisante pour le marquage en aval de la surface de freinage 19A.Thanks to the braking resulting from the suction of the
Une séquence de marquage d'une pièce 2 sur la machine 1, illustrée pour la pièce 2 portée par le mandrin 9A sur les
- Tout d'abord, le
support 10 du mandrin 9A coulisse le long des rails 11, dans le sens de la flèche F2 de lafigure 1 , de manière à atteindre la position visible sur lafigure 2 . Dans cette position,le poinçon 6 se trouve sur la droite de la pièce 2 portée par le mandrin 9A, la hauteur relative de la pièce 2 et du poinçon 6 étant adaptée de telle sorte que le poinçon 6, par un mouvement de translation en direction de la pièce 2 parallèlement à l'axe Y4, est apte à venir en contact avec lasurface périphérique externe 2A de cette pièce 2 à marquer.
- First, the
support 10 of themandrel 9A slides along therails 11, in the direction of the arrow F 2 of thefigure 1 , so as to reach the position visible on thefigure 2 . In this position, thepunch 6 is on the right of thepart 2 carried by themandrel 9A, the relative height of thepart 2 and thepunch 6 being adapted so that thepunch 6, by a translation movement in the direction of thepart 2 parallel to the axis Y 4 , is adapted to come into contact with the outerperipheral surface 2A of thispart 2 to be marked.
Lorsque le mandrin 9A a positionné la pièce 2 dans cette position, le poinçon 6 porté par la tête de marquage 5 est déplacé en translation par rapport au bâti 3, parallèlement à l'axe longitudinal Y4 du rail 4 et en direction de la pièce 2 à marquer, comme montré par la flèche F3 aux
Simultanément au mouvement de translation du poinçon 6 dans le sens de la flèche F3 et au défilement du ruban 7 dans le sens de la flèche F4, la pièce 2 est entraînée en rotation autour de l'axe X9 du mandrin 9A, dans le sens de la flèche F5 de la
Afin de favoriser le refroidissement du ruban 7 en sortie de la pièce 2 au cours du marquage, un mou de ruban est avantageusement fourni, au commencement du marquage, par un retour arrière du moteur brushless associé aux moyens de rembobinage 15-17.In order to promote the cooling of the
A la fin du marquage, le poinçon 6 se trouve sur la gauche de la pièce 2, comme visible sur la
La tête de marquage 5 munie du poinçon 6, le cylindre de freinage 19, les moyens de rembobinage 15-17 et les décolleurs 23 et 24 sont alors également déplacés vers leur position initiale, par une translation parallèlement à l'axe Y4 dans le sens de la flèche F7 de la
Le ruban 7 chauffé tend à adhérer par rapport à la surface 2A de la pièce 2 portée par le mandrin 9A. Lors du déplacement de la pièce 2 à la fin du marquage, qui résulte des mouvements combinés du mandrin 9A et du plateau 8, le ruban 7 subit ainsi une légère traction dans la direction de déplacement de la pièce. Cette traction du ruban 7 à la fin du marquage génère un mou perturbateur de ruban 7 entre la surface de freinage 19A et les moyens de rembobinage 15-17. Ce mou perturbateur de ruban 7 est repris lors du rembobinage du ruban 7 consécutif au marquage. En complément, ce mou perturbateur de ruban 7 peut également être repris en désactivant momentanément l'aspiration de la surface de freinage 19A, de sorte que le mou perturbateur est ravalé dans la boîte d'aspiration 18.The
A la fin de la séquence de marquage, le plateau tournant 8 a, par sa rotation dans le sens de la flèche F1 de la
Comme il ressort des étapes décrites ci-dessus d'une séquence de marquage d'une pièce 2, le guidage du ruban 7 sur la machine 1 conforme à ce premier mode de réalisation de l'invention permet de réaliser le marquage de chaque pièce 2 avec une bonne fiabilité et une bonne qualité de marquage, même pour une largeur du ruban 7 faible, notamment comprise entre environ 8 mm et 25 mm, et une cadence de marquage élevée, par exemple supérieure à 3000 pièces par heure, en particulier supérieure à 6000 pièces par heure, produites avec une seule tête de marquage. En effet, la combinaison de la boîte d'aspiration 18, disposée en sortie des moyens de débobinage 12-14 motorisés, et de la surface de freinage 19A permet de garantir une tension satisfaisante du ruban 7 en regard du poinçon 6, adaptée à sa fonction. La tension du ruban 7 est satisfaisante pour le marquage lorsqu'elle permet un guidage en hauteur et un guidage latéral du ruban. Ainsi, on s'affranchit des risques de déviation du ruban ou de formation de vagues au niveau du ruban, qui nuiraient à la qualité du marquage. De telles vagues de ruban sont notamment susceptibles d'intervenir dans le cas du marquage de pièces de dépouille conique. En outre, le risque d'un défilement saccadé du ruban 7, avec une variation de sa tension, du fait de l'inertie des moyens de débobinage 12-14 est éliminé, grâce à la réserve de ruban 7 avec faible tension formée à l'intérieur de la boîte d'aspiration 18 et au freinage du ruban 7 par la surface de freinage 19A, la boîte d'aspiration 18 et la surface de freinage 19A n'introduisant aucun effet d'inertie indésirable. Le défilement du ruban 7 se fait ainsi avec une tension sensiblement constante du ruban, ce qui garantit un marquage qualitatif des pièces 2.As can be seen from the steps described above of a marking sequence of a
Dans le deuxième mode de réalisation représenté sur la
La machine 201 comprend un plateau tournant 208, analogue au plateau 8 du premier mode de réalisation et prévu pour tourner entre deux séquences de marquage autour d'un axe X208 sensiblement parallèle à l'axe X206. Comme dans le premier mode de réalisation, le plateau 208 est pourvu de six mandrins 209 cylindriques à section circulaire, destinés à recevoir chacun une pièce 202. Chaque mandrin 209 est monté rotatif sur un support 210, autour d'un axe X209 sensiblement parallèle aux axes X206 et X208, chaque support 210 étant supporté par des rails 211. Le coulissement d'un mandrin 209 le long des rails 211 n'est permis que lorsque ce mandrin 209 est au voisinage d'un poste de marquage, qui est occupé par le mandrin 209A sur la
La
Une séquence de marquage d'une pièce 202 sur la machine 201 conforme à ce deuxième mode de réalisation comprend des étapes dans lesquelles :
- Tout d'abord, la roue 206, qui est animée d'un mouvement de rotation autour de son axe X206 entre deux séquences de marquage en vue de son chauffage, est accélérée jusqu'à la vitesse de marquage. La pièce 202 portée par le mandrin 209A, qui est au poste de marquage, est entraînée en rotation par le mandrin 209A autour de l'axe X209, à la vitesse de marquage et avec un sens de rotation opposé à celui de la roue 206. En parallèle, le
support 210 du mandrin 209A coulisse verticalement vers le haut le long des rails 211, en direction de la roue 206.
- First, the
wheel 206, which is rotated about its axis X 206 between two marking sequences for heating, is accelerated to the marking speed. Thepart 202 carried by the mandrel 209A, which is at the marking station, is rotated by the mandrel 209A about the X axis 209 , at the marking speed and with a direction of rotation opposite to that of thewheel 206 In parallel, thesupport 210 of the mandrel 209A slides vertically upwards along therails 211, towards thewheel 206.
Lorsque la pièce 202 portée par le mandrin 209A vient au contact de roue 206, le moteur associé au cylindre entraîneur 216 est actionné de manière à obtenir un tirage du ruban 207 et son défilement par rapport au bâti 203, à une vitesse appropriée pour le marquage. Le défilement du ruban 207 résulte du dévidement du ruban 207 hors de la boîte d'aspiration 208 et du rembobinage du ruban par les moyens de rembobinage 215-217. Conformément à l'invention, une réserve de ruban sans tension autre que sa tension propre est maintenue dans la boîte d'aspiration 218 pour chaque séquence de marquage, de manière analogue au premier mode de réalisation. Le ruban 207, intercalé entre la roue 206 et la pièce 202, est pressé, tout en étant chauffé, entre la surface périphérique de la roue 206 et la surface périphérique 202A de la pièce 202 entraînées en rotation, ce qui permet le marquage de la pièce 202.When the
Afin de favoriser le refroidissement du ruban 207 en sortie de la pièce 202 au cours du marquage, un mou de ruban est avantageusement fourni, au commencement du marquage, en générant un retard au tirage du ruban 207 ou un arrêt temporaire du tirage du ruban 207 par les moyens de rembobinage 215-217, à l'aide d'une commande appropriée du moteur associé aux moyens 215-217.In order to promote the cooling of the
A la fin du marquage, le mandrin 209A, qui tourne sur lui-même autour de l'axe X209, est déplacé verticalement vers le centre du plateau 208, par coulissement de son support 210 le long des rails 211, ce qui éloigne la pièce 202 de la roue 206. Lors du déplacement vertical du mandrin 209A, le plateau 208 est également pivoté, la synchronisation des mouvements du mandrin 209A et du plateau 208 étant obtenue au moyen d'une unité de pilotage non représentée.At the end of the marking, the mandrel 209A, which rotates about itself about the axis X 209 , is moved vertically towards the center of the
Comme dans le premier mode de réalisation, le ruban 207 chauffé tend à adhérer par rapport à la surface 202A de la pièce 202. Lors du déplacement de la pièce 202 à la fin du marquage, qui résulte des mouvements combinés du mandrin 209A et du plateau 208, le ruban 207 subit ainsi une légère traction dans la direction de déplacement de la pièce. Cette traction du ruban 207 à la fin du marquage génère un mou perturbateur de ruban 207 entre la surface de freinage 219A et les moyens de rembobinage 215-217. Ce mou perturbateur de ruban 207 est repris en désactivant momentanément l'aspiration de la surface de freinage 219A, de sorte que le mou perturbateur est ravalé dans la boîte d'aspiration 218.As in the first embodiment, the
A la fin de la séquence de marquage, le plateau tournant 208 a, par sa rotation, positionné un autre mandrin 209 au poste de marquage.At the end of the marking sequence, the
Quel que soit le mode de réalisation, une machine de marquage conforme à l'invention permet donc de réaliser le marquage de pièces avec une bonne fiabilité et une bonne qualité du marquage, même pour une largeur faible du ruban utilisé et une cadence de marquage élevée, grâce à la combinaison de la boîte d'aspiration, disposée à la sortie de moyens de débobinage motorisés, et de la surface de freinage. La réserve de ruban avec une faible tension formée à l'intérieur de la boîte d'aspiration permet en effet de s'affranchir de l'inertie propre aux moyens de débobinage et d'obtenir un défilement avec une tension sensiblement constante du ruban en regard de l'organe de marquage, alors que la surface de freinage est nécessaire pour assurer une tension satisfaisante de la portion de ruban passant en regard de l'organe de marquage. Cette tension du ruban est obtenue sans effets d'inertie indésirables, contrairement à la tension qui serait obtenue avec un dispositif de tension constante, tel qu'un bras batteur à ressort.Whatever the embodiment, a marking machine according to the invention thus makes it possible to mark parts with good reliability and good quality of marking, even for a small width of the tape used and a high marking rate. , thanks to the combination of the suction box, disposed at the output of motorized unwinding means, and the braking surface. The reserve of ribbon with a low voltage formed inside the suction box makes it possible to overcome the inertia proper to the unwinding means and to obtain a scroll with a substantially constant tension of the ribbon opposite the marking member, while the braking surface is necessary to ensure a satisfactory tension of the ribbon portion passing next to the marking member. This ribbon tension is obtained without undesirable inertia effects, unlike the tension that would be obtained with a constant tension device, such as a spring-loaded mixing arm.
En d'autres termes, sur une machine de marquage conforme à l'invention, comprenant une boîte d'aspiration disposée à la sortie de moyens de débobinage motorisés et une surface de freinage, la réserve de ruban dans la boîte d'aspiration présente une première tension relativement faible, alors que le ruban présente une deuxième tension plus élevée que la première tension entre la surface de freinage et les moyens de rembobinage, cette deuxième tension étant satisfaisante pour le marquage de pièces. En outre, la boîte d'aspiration et la surface de freinage n'introduisent aucun effet d'inertie indésirable.In other words, on a marking machine according to the invention, comprising a suction box disposed at the output of motorized unwinding means and a braking surface, the supply of ribbon in the suction box has a relatively low first voltage, while the ribbon has a second voltage higher than the first voltage between the braking surface and the rewinding means, this second voltage being satisfactory for marking parts. In addition, the suction box and the braking surface do not introduce any undesirable inertia effect.
L'invention n'est pas limitée aux exemples décrits et représentés. En particulier, une machine de marquage à chaud conforme à l'invention, comprenant une boîte d'aspiration disposée en sortie de moyens de débobinage motorisés et une surface de freinage, peut être appliquée au marquage de pièces à section transversale non circulaire, le profil et la cinématique de mandrins de support de telles pièces étant adaptés en conséquence. Une machine de marquage conforme à l'invention peut également être mise en oeuvre avec des mandrins individuels, qui ne sont pas intégrés sur un plateau tournant tel que décrit précédemment et assurent un déplacement approprié de pièces à marquer.The invention is not limited to the examples described and shown. In particular, a hot stamping machine according to the invention, comprising a suction box disposed at the output of motorized unwinding means and a braking surface, can be applied to the marking of non-circular cross section pieces, the profile and the kinematics of supporting mandrels of such parts being adapted accordingly. A marking machine according to the invention can also be implemented with individual chucks, which are not integrated on a turntable as described above and ensure proper movement of parts to mark.
De plus, la cinématique conférée aux éléments de la machine de marquage peut être différente de celle décrite et représentée. En particulier, dans le cas d'un poinçon plan, le poinçon peut être fixe en translation par rapport au bâti de la machine au cours du marquage, la pièce à marquer étant alors déplacée à la fois en rotation et en translation par rapport au poinçon au cours du marquage. La combinaison de la boîte d'aspiration et de la surface de freinage est alors utilisée pour réduire les contraintes en déformation subies par le ruban lors de son rembobinage rapide, dans le cas de cadences élevées de marquage. En outre, le mouvement de mise en contact de l'organe de marquage avec une pièce à marquer peut être pris en charge par l'organe de marquage, et non par le mandrin de support de la pièce. Dans les modes de réalisation décrits, l'organe de marquage 6 ou 206 peut ainsi être prévu pour se déplacer verticalement, le mouvement vertical des mandrins 9 ou 209 n'étant alors plus nécessaire.In addition, the kinematics imparted to the elements of the marking machine may be different from that described and shown. In particular, in the case of a flat punch, the punch can be fixed in translation relative to the frame of the machine during marking, the piece to be marked then being moved both in rotation and in translation relative to the punch during marking. The combination of the suction box and the braking surface is then used to reduce the deformation stresses experienced by the ribbon during its rapid rewinding, in the case of high marking rates. In addition, the movement of contacting the marking member with a part to be marked can be supported by the marking member, and not by the support chuck of the piece. In the embodiments described, the marking
Par ailleurs, lorsque le poinçon plan est mobile en translation par rapport au bâti de la machine au cours du marquage comme dans le premier mode de réalisation, les différents éléments 12-19 de gestion du ruban peuvent être embarqués ou non avec le poinçon, indépendamment les uns des autres ou simultanément. On peut ainsi envisager que seule la surface de freinage est embarquée avec le poinçon dans le premier mode de réalisation, alors que les moyens de rembobinage 15-17 sont fixes par rapport au bâti de la machine. Inversement, on peut embarquer uniquement les moyens de rembobinage 15-17 avec le poinçon, la surface de freinage étant gardée fixe. Les moyens de débobinage 12-14 et la boîte d'aspiration 18 peuvent également être embarqués avec le poinçon lorsque la surface de freinage est elle-même embarquée. Le défilement du ruban en regard du poinçon est adapté à chaque configuration, par une programmation appropriée des moyens de débobinage et de rembobinage du ruban. En particulier, la séquence de défilement du ruban au cours d'une séquence de marquage avec un poinçon plan, est, pour une configuration de la machine de marquage dans laquelle les moyens de débobinage 12-14 et de rembobinage 15-17 du ruban sont fixes par rapport au bâti de la machine, la même que celui décrit dans le deuxième mode de réalisation mettant en jeu la roue de marquage 206.Furthermore, when the plane punch is movable in translation relative to the frame of the machine during the marking as in the first embodiment, the various elements 12-19 management of the ribbon can be embedded or not with the punch, independently from each other or simultaneously. It can thus be envisaged that only the braking surface is embarked with the punch in the first embodiment, while the rewinding means 15-17 are fixed relative to the frame of the machine. Conversely, it is possible to embark only the rewinding means 15-17 with the punch, the braking surface being kept fixed. The unwinding means 12-14 and the
La position relative des éléments de guidage du ruban montrée dans les premier et deuxième modes de réalisation peut également être modifiée, la boîte d'aspiration pouvant par exemple être disposée horizontalement par rapport aux moyens de débobinage, ou encore au-dessous de ces moyens de débobinage. La surface de freinage du ruban, formée par le cylindre de freinage dans les exemples décrits, peut également être de toute forme autre qu'une portion de cylindre, notamment plane. De plus, cette surface de freinage peut être intégrée à l'intérieur de la boîte aspirante, en étant formée par exemple par une paroi de la boîte aspirante. Un tel agencement est plus compact et permet de réduire l'encombrement de la machine de marquage.The relative position of the ribbon guiding elements shown in the first and second embodiments may also be modified, the suction box may for example be arranged horizontally relative to the uncoiling means, or below these means of unwinding. The braking surface of the ribbon, formed by the braking cylinder in the examples described, may also be of any shape other than a portion of a cylinder, in particular a plane. In addition, this braking surface can be integrated inside the suction box, being formed for example by a wall of the suction box. Such an arrangement is more compact and reduces the size of the marking machine.
Claims (11)
- Hot marking machine (1; 201), of the type comprising- a marking member (6; 206) intended to press a tape (7; 207) against the peripheral surface (2A; 202A) of individual components (2; 202) in order to mark them, the individual components (2; 202) being positioned in succession in a marking station and marked by repeating a marking sequence on each component (2; 202), the machine (1; 201) comprising- tape unwinding means (12-14; 212-214) and- tape rewinding means (15-17; 215-217),characterized in that- the unwinding means (12-14; 214) are intended to unwind a length of tape (7; 207) in sequence after the end of each marking sequence ready for the next marking sequence,- the machine further comprises a tape suction box (18; 218) and a tape braking surface (19A; 219A),- the braking surface (19A; 219A) is of an orientation that is fixed with respect to the frame (3; 203) of the machine (1; 201) during each marking sequence,- the tape (7; 207) from the unwinding means (12-14; 212-214) passes in succession through the suction box (18; 218), along the braking surface (19A; 219A) and past the marking member (6; 206) so that a reserve of tape (7; 207) is available in the suction box (18; 218) between the unwinding means (12-14; 212-214) and the braking surface (19A; 219A), whereas the tape (7; 207) is taut past the marking member (6; 206) between the braking surface (19A; 219A) and the rewinding means (15-17; 215-217).
- Marking machine according to Claim 1, characterized in that the braking surface (19A; 219A) is a surface pierced with suction orifices (192) for sucking the tape (7; 207).
- Marking machine according to either one of Claims 1 and 2, characterized in that the braking surface (19A; 219A) is formed by a braking cylinder (19; 219) around which the tape (7; 207) is partially wrapped.
- Marking machine according to Claim 3, characterized in that the braking cylinder (19; 219) comprises an external envelope (191) forming the braking surface (19A; 219A) and a hollow internal body (193) housed inside the envelope (191) and connected to a vacuum source, the envelope (191) being pierced with suction orifices (192) for sucking the tape (7; 207) at the braking surface (19A; 219A), these being able to communicate with the inside of the hollow body (193) through corresponding orifices (194) in the body (193), the orifices (194) in the body (193) being able to be offset angularly with respect to the orifices (192) in the envelope (191) so as to modify the suction force applied by the braking surface (19A; 219A) to the tape (7; 207).
- Marking machine according to any one of the preceding claims, characterized in that the unwinding means (12-14; 212-214) are motorized, the machine (1; 201) comprising means (188) of detecting the length of tape (7; 207) available between the unwinding means (12-14; 212-214) and the braking surface (19A; 219A), these detection means (188) being connected to the drive mechanism that motorizes the unwinding means (12-14; 212-214) so as to modify said length of tape (7; 207).
- Marking machine according to any one of the preceding claims, characterized in that the suction box (18; 218) comprises means (186) of containing the tape (7; 207) against the interior walls (183, 185) of the suction box.
- Marking machine according to any one of the preceding claims, characterized in that the marking member (6; 206) is fixed in terms of translation with respect to the frame (3; 203) of the machine (1; 201) during the marking of a component (2; 202), the machine (1; 201) comprising means (9; 209) of moving the component (2; 202) with respect to the marking member (6; 206), which move it at least in terms of rotation about an axis (X9; X209) during marking.
- Marking machine according to any one of Claims 1 to 6, characterized in that the marking member (6) is able to move in translation parallel to an axis (Y4) with respect to the frame (3) of the machine (1) during the marking of a component (2), the machine (1) comprising means (9) of moving the component (2) with respect to the marking member (6), which move it solely in terms of rotation about an axis (X9) during marking.
- Marking machine according to Claim 8, characterized in that the braking surface (19A) has a translational movement with respect to the frame (3) of the machine (1) which is identical to that of the marking member (6) when a component (2) is being marked.
- Marking machine according to either one of Claims 8 and 9, characterized in that the rewinding means (15-17) have a translational movement with respect to the frame (3) of the machine (1) which is identical to that of the marking member (6) when a component (2) is being marked.
- Marking machine according to any one of the preceding claims, characterized in that the marking member is a plane punch (6) or a marking wheel (206).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL08787824T PL2125371T3 (en) | 2007-03-21 | 2008-03-20 | Tape marking machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR0702056A FR2913914B1 (en) | 2007-03-21 | 2007-03-21 | RIBBON MARKING MACHINE |
PCT/FR2008/000377 WO2008142225A2 (en) | 2007-03-21 | 2008-03-20 | Tape marking machine |
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EP2125371A2 EP2125371A2 (en) | 2009-12-02 |
EP2125371B1 true EP2125371B1 (en) | 2018-03-07 |
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EP08787824.5A Active EP2125371B1 (en) | 2007-03-21 | 2008-03-20 | Tape marking machine |
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US (1) | US8074568B2 (en) |
EP (1) | EP2125371B1 (en) |
BR (1) | BRPI0808902B1 (en) |
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MX (1) | MX2009010093A (en) |
PL (1) | PL2125371T3 (en) |
WO (1) | WO2008142225A2 (en) |
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DE666432C (en) * | 1934-11-10 | 1938-10-19 | Erhard Sattmann | Device for labeling stick-shaped workpieces, for example pencils |
US3718517A (en) * | 1970-02-19 | 1973-02-27 | T Berg | Method and apparatus for decorating articles |
US4207998A (en) * | 1977-05-16 | 1980-06-17 | Bachofen & Meier, Maschinenfabrik | Vacuum roller |
DE69410343T2 (en) * | 1993-04-08 | 1998-12-03 | Eastman Kodak Co., Rochester, N.Y. | Device for transporting and punching a band-shaped material |
DE9420707U1 (en) * | 1994-12-24 | 1995-02-16 | Steuer, Armin, 71111 Waldenbuch | Embossing rotary machine |
EP0858888B2 (en) * | 1997-02-13 | 2007-03-07 | Maschinenfabrik Gietz Ag | Flat-bed blocking press |
DE19842585A1 (en) * | 1998-09-17 | 2000-03-23 | Armin Steuer | Storage device and its use |
DE19843533A1 (en) * | 1998-09-23 | 2000-03-30 | Armin Steuer | Method and device for disposal of web material |
DE10009162A1 (en) * | 2000-02-26 | 2001-08-30 | Armin Steuer | Continuous film embossing machine includes film transport arrangement to give a vertical film path in the region of the embossing cylinders |
CA2499715A1 (en) * | 2001-07-23 | 2003-01-23 | Mitsubishi Heavy Industries, Ltd. | Sheet-fed press and intermediate cylinder for sheet-fed press |
DE10163762A1 (en) * | 2001-12-27 | 2003-07-17 | Hauni Maschinenbau Ag | Wristwatch is provided with cooling air channels on its reverse side, so that a larger watch face can be employed and user discomfort in hot conditions or during exercise is reduced |
FR2860180B1 (en) | 2003-09-26 | 2005-12-23 | Dubuit Mach | PRINTING MACHINE |
EP1593503B1 (en) * | 2004-05-04 | 2013-06-26 | Maschinenfabrik Gietz Ag | Foil guiding device for a flat foil printing machine |
-
2007
- 2007-03-21 FR FR0702056A patent/FR2913914B1/en active Active
-
2008
- 2008-03-20 EP EP08787824.5A patent/EP2125371B1/en active Active
- 2008-03-20 WO PCT/FR2008/000377 patent/WO2008142225A2/en active Application Filing
- 2008-03-20 PL PL08787824T patent/PL2125371T3/en unknown
- 2008-03-20 BR BRPI0808902A patent/BRPI0808902B1/en active IP Right Grant
- 2008-03-20 MX MX2009010093A patent/MX2009010093A/en active IP Right Grant
-
2009
- 2009-03-20 US US12/076,657 patent/US8074568B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
PL2125371T3 (en) | 2018-08-31 |
FR2913914A1 (en) | 2008-09-26 |
WO2008142225A3 (en) | 2009-02-19 |
US8074568B2 (en) | 2011-12-13 |
US20090178581A1 (en) | 2009-07-16 |
MX2009010093A (en) | 2009-10-19 |
BRPI0808902B1 (en) | 2018-12-04 |
BRPI0808902A2 (en) | 2014-08-19 |
EP2125371A2 (en) | 2009-12-02 |
BRPI0808902A8 (en) | 2017-01-24 |
WO2008142225A2 (en) | 2008-11-27 |
FR2913914B1 (en) | 2012-09-07 |
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