• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The vacuum table (1) for flat bed printer or flatbed cutting plotter comprises a table top (3) with a plurality of holes (5) penetrating the table top (3). The underlying distribution channels can be individually closed by valves manually or automatically or connected to an air source. In this case, all in the Y direction in a row lying holes (5) are exposed or closed. The valve used for this purpose is inserted into the distribution channels.
    公开号:CH713942A2
    申请号:CH00739/18
    申请日:2018-06-08
    公开日:2018-12-28
    发明作者:Bösch Nobert
    申请人:Swissqprint Ag；
    IPC主号:
    专利说明:

    Description: The invention relates to a table for a flat bed printer or a flatbed cutter according to the preamble of patent claim 1.
    Tables for flatbed printers and flatbed cutting plotters are known in various designs and serve the workpieces, such as paper, cardboard, plastics and cutters also leather, immovably hold on the table top. The known tables, usually with a table top made of metal such as aluminum, have a plurality of spaced apart holes, are arranged under which spaces and are in communication with the holes to pass through a vacuum source, which is connected to the rooms, air through the Suction holes and suck on a laid workpiece on the surface of the table and hold. In order to allow easy transport, positioning and detachment before and after machining the workpiece, compressed air can be blown into the spaces instead of a vacuum, thereby creating an air cushion under the workpieces, which facilitates moving and lifting off the table. When working on the known tables in most cases only a small part of the perforated surface of the table top is occupied with workpieces. Often, the workpieces are located only in the area of the operating side and cover there not the entire number of holes, but only a small part of it. The uncovered holes must then be painstakingly covered with foil or paper strips in order not to have to put the entire table under costly vacuum, so that the applied workpieces can also be held non-positively. This problem has long been known and it has been proposed various ways of partial shutdown of suction under the uncovered holes.
    In WO 2010/061 221 A1 a printer table is described as an example of the covering of holes, in which along at least one edge of the table more holes are mounted, which acted independently of the first holes for the suction or lifting of the workpieces with air are. These holes are used to hold a covering medium (paper, foil, etc.) in which surfaces are cut, within which now workpieces are placed on the table and held on this. Consequently, with this auxiliary mask not covered by the workpieces holes are covered and thereby limits the required amount of suction air. Although the amount of suction air is limited by this device, but the cost of preparing the printer before it can be put into work is immense. In particular, if not a larger number of non-area workpieces must be edited, because then again and again a new mask must be created. From US 2002/0 110 400 a printer with a vacuum plate is also known. In this vacuum plate are arranged under the arranged in the vacuum plate holes in X- and Y-extending cylindrical rods in which the rods penetrating holes are formed at regular intervals. The rods are rotatable from the outside and are located within a space that can be placed under oppression. If all drillings on the rods are aligned vertically, all holes are subjected to a vacuum. If one of the rods is turned out and thus the connection to the holes with the bar above or below it interrupted, partial areas of the printer plate can be freed from the vacuum. This device is extremely complicated and the loss of compressed air at the joints, both between the rods and the holes mounted there and the table top, is extremely large. A commercial application is almost impossible.
    From the further known JP H 01 206 644 a vacuum table top is known in which individual rows of holes extending in the Y direction can be separated by screwing in locking pins from the vacuum source. The operation of this vacuum plate is complicated and possible only by means of tools. A use on a table on which always different workpieces are to be processed is hardly possible commercially.
    An object of the present invention is to provide a table in which after placing the workpieces at least the side lying in the X direction of the placed workpieces and not covered by the workpieces holes can be closed. Another object of the present invention is to provide a table in which both the X and Y direction non-workpiece covered bores can be excluded from connection to a source of suction.
    This object is achieved by a table with the features of claim 1. Advantageous embodiments of the table are described in the dependent claims.
    It succeeds by attaching easy-to-use valves in the branches from the connection channel to the distribution channels on the operator side of the table, decouple each row of boreholes in the Y direction of the suction or compressed air flow or reconnect. The usually large uncovered area of the table remaining in the Y-direction behind the workpieces can then be covered in a conventional manner with one or more large-area masks. These do not have to be cut individually, because they can partially overlap.
    In a particularly advantageous embodiment of the invention can be separated from the pressure or suction air source by the use of valves on one of the two lateral edges of the table each one or more extending in the X direction rows of holes. The actuation of the valves takes place after the workpieces to be machined and thus the uncovered rows of holes between the workpieces are visible at the touch of a button manually or when using controlled valves electrically, pneumatically or hydraulically. By tilting buttons rotatable shut-off elements, which are arranged in a bore in or over the connecting channel can be manufactured and assembled inexpensively. The keys are always in line with the holes, so that after placing the workpieces all uncovered holes are easily visible by pressing the key lying in each line and can be closed. The valves may be constructed of metal, plastic or combination of metal or plastic parts. They can be operated with minimal effort and can e.g. by stroking with one finger all together are reopened to turn off when placing new differently shaped workpieces in turn, the corresponding rows of holes. In the particularly advantageous embodiment of the table not only the front side, but also at least one of the side edges valves are arranged. The valves arranged there are not mounted in the connecting channel, but arranged in a below the perforated table top, substantially identical to the formed above intermediate plate. In the intermediate plate extending in the X direction switching lever, the intermediate plate penetrating and pivoting about each of the holes provided therein penetrating slots are arranged. These make it possible to shut off or open one or more rows of holes extending in the X-direction from the compressed or suction air. Consequently, all holes not covered by workpieces can be separated from or connected to air streams.
    Based on two illustrated embodiments, the invention will be explained in more detail. Show it:
    1 is a perspective view of the front edge of a table for flatbed printer or flatbed cutting plotter,
    2 is an exploded view of the elements of the table according to FIG. 1,
    2.1 is an exploded view of the elements of the table according to FIG. 1 with a connecting channel with integrated valve block, FIG.
    Fig. 3 is an enlarged perspective view cut open front corner of the table; Valve in suction or pressure position,
    Fig. 3.1 is an enlarged perspective view cut open front corner of the table; Valve in suction or pressure position according to FIG. 2.1,
    Fig. 4 is an enlarged perspective view cut open front corner of the table; Valve closed,
    Fig. 4.1 is an enlarged perspective view cut open front corner of the table; Valve closed according to FIG. 2.1,
    5 is a perspective view of the valve body from the front,
    6 is a perspective view of the valve body from the rear,
    7 is an exploded view of the elements of a table with valves at the front and at the side edge,
    8 is a perspective view of the table according to FIG. 7,
    9 is a perspective view of the table according to FIG. 7 with partially cutaway front corner, FIG.
    10 is an enlarged detail at the front edge of the table,
    Fig. 11 is an enlarged detail on the side edge of the table and
    Fig. 12 key 35 in a fixed position in the connecting channel 13 with fixing edge 54th
    Fig. 13 is an enlarged perspective view of a button with optical markings.
    For better clarity, in the figures, only the table 1 with the table top 3 without the tools, that is the portal with the printable heads or the cutting heads and the frame, which carries the table 1, shown. The table top 3 is as in the conventional tables 1 made of metal, for example, consisting of an aluminum plate, and there are a plurality of perpendicular to the surface of the table top 3 through these holes 5 in the X direction and in the Y direction extending rows available. The holes 5 open under the table top 3 in distribution channels 7, which are formed for example by a corrugated sheet-like plate 9 with arcuate or trapezoidal "mountains" and "valleys" (see Fig. 2). The plate 9 is connected to the underside of the table top 3 and the valleys of the plate 9 are below the holes 5. They form the distribution channels 7 and thus connect each a number of holes 5, which is arranged in the Y direction.
    At the leading edge 11 of the table 1, i. the side on which the operator usually stands, a number of valves 15 corresponding to the number of rows of bores 5 extending in the Y direction are inserted in a connecting channel 13. The connecting channel 13 may comprise a rectangular profile tube, e.g. made of aluminum, which is each closed by a lid 17 at the front and which is connected at its bottom via a feed pipe 19 with a suction source or a compressed air source.
    The valves 15 are inserted in the first example in a valve block 21 in there mounted in the Y direction cylindrical guide holes 23. The valve block 21 rests tightly on the connecting channel 13 and is connected to a second recess 27 on the valve 15 via a first recess 25 formed in the connecting channel 13 on the upper side of the connecting channel 13 (see also FIGS. 5 and 6). The valve 15 comprises a cylindrical tubular portion 29 which is rotatably supported in the cylindrical guide bore 23 with a small clearance and in which the second recess 27 is mounted, and further comprises an operating portion 31 which is connected to the tubular portion 29. The actuating portion 31 has, for example, a V-shaped cross-section and is arranged in alignment with the axis A of the tubular portion 29 (Figures 5 and 6). If the actuating region or the V-shaped button 35, as shown in Fig. 3, pivoted counterclockwise on the valve block 21 fitting, the second recess 27 of the tubular portion 29 is above the first recess 25 on the valve block 21 to lie. It can thus be sucked through the supply pipe 19 through the two recesses 25 and 27 from the feed pipe 19, which is under oppression. The intake of air through the holes 5 in the table top 3. When the operator pivots the button 35 clockwise so that the right wing rests on the surface of the vacuum tube 13 or strikes, the second recess 27 from the shell 37 of the tubular portion Covered 29 and it can no longer be sucked air through the holes 5 (see Fig. 4).
    The V-shaped keys, whose two legs are directed upward, can be easily and with minimal effort by finger pressure from the «on» position in the «to» position to pivot (see Fig. 1).
    In a second embodiment of the connecting channel 13 of the patched in the first embodiment, the connecting channel 13 valve block 21 is integrated into the connecting channel 13. Consequently, as can be seen in FIG. 3.1, the valves 15 are guided directly in the connection channel 13. This eliminates the first recess 25 in the connecting channel 13 and the air can be performed directly through the second recess 27 on the valve 15.
    From Figures 12, 13 it can be seen that at the end faces of the valves 15 and the button 35 marks, e.g. "+" Or "-" or the colors "red" and "green" may be attached, which allow the operator to see if the connections of the holes 5 to the suction means are open or closed. Furthermore, on the V-shaped button 35 in its apex, a detent 53 may be formed, which serves to key 35 fixed by snapping on the fixing edge 54 on the connecting channel 13 in the intended working position and that the button 35 in one or the other Position is securely locked.
    In Fig. 1, two workpieces 49 are shown on the surface of the table top 3 in a hatched view. These cover the lying under the workpiece 49, so covered holes 5 ', but not the other holes 5. So that no air is sucked through the uncovered, so exposed bores 5 or blown when blowing, are, starting from the left, the first three buttons 35a, 35b and 35c turned clockwise. By flipping all holes 5 are closed by the valves 15 in the Y-direction row. The same applies to the key 35d between the two workpieces 49. If the machining of the two workpieces 49, e.g. printing, completed, the vacuum source is turned off and the workpieces 49 can be lifted. To facilitate the lifting can be supplied through the feed pipe 19 temporarily compressed air. In turn, if equal sized workpieces 49 must be placed on the table top 3 at the same location, the valves 15 remain in the set manner left. If, however, a workpiece 49, which is larger or smaller, is placed, in turn the holes 5 not covered by the workpiece 49 are closed after placement. This can be done in a simple manner by first bringing the operator all the keys 35 in the open position (Fig. 3), ie in the suction position, by moving his finger as on the keyboard of a piano from right to left. Thereafter, the workpieces 49 are placed and again all rows of holes 5 in the Y direction, which are not covered by the workpiece 49, individually closed by tilting the keys 35. The distribution channel 13 and the valve block 21 can of course form a unit, instead of two elements to be, as shown in Fig. 2a, 3a, 4a.
    In the embodiment of the invention according to FIG. 7 to 11 comes between the perforated table top 3 and the corrugated plate 9 in addition to lie an intermediate plate 39. The intermediate plate 39 has the same dimensions as the table top 3 and it is congruently perforated by holes 5, which, when the table top 3 and the intermediate plate 39 are stacked, are aligned. Consequently, when the two plates 3, 39 are stacked and connected to each other, all holes 5 in the table top 3 are in turn connected to the channels 7 formed by the corrugated plate 9.
    In order to be able to turn on and off rows of bores 5 in the X direction from the vacuum or the compressed air from the vacuum or pressure source, are in the intermediate plate 39 under the X-direction extending or lying rows of Holes 5 slots 41 recessed. The slots 41 are located between the surface of the intermediate plate 39 and parallel to this. In the cylindrical slots 41 cylindrical rods 43 are inserted. In the rods 43 39 holes 45 are recessed at the same distance as in the table top 3 and the intermediate plate.
    At the outside of the intermediate plate 39 coming to the end of the perforated rods 43 is ever a switching lever 47, which may be formed analogous to the V-shaped key 35, molded. If the rods 43, as shown on the rod 43 in FIG. 7, are provided with vertically extending boreholes 45, air can be sucked in from the environment through the table top 3, the intermediate plate 39 and the rods 43, or vice versa can be delivered to them (switching lever 47a In Fig. 8, when the rods 43 are rotated, the air flow in the associated rows of holes 5 is interrupted (change-over lever 47b). The switching lever 47 may have the same shape as the V-shaped keys 35 on the actuating portion 31 of the valves 15, with which the extending in the Y direction bores 5 can be closed. Alternatively, the rods 43 could be designed to be axially displaceable in order to open or close the bores 5 in order to interrupt the connections from the distribution channels 7 (no illustration).
    With the embodiment of the invention according to the figures 7 to 11, it is now possible, the remote from the operator, extending in the X direction uncovered rows of holes, without aufzulegende masks, etc. also to close. In order to do this, as in the first embodiment according to FIGS. 1 to 7, the holes 5 arranged in the Y direction are closed and then the uncovered bores 5 'arranged in the X direction are likewise closed by the switching levers 47 (FIG. Fig. 8. the switching lever 47a, 47b, 47c and the last four switching lever 47d to 47g). The second embodiment makes it possible to separate all uncovered holes 5 from the suction or compressed air source. This makes it possible to hold with a very small amount of vacuum over the table 1 distributed workpieces 49 or lift off after completion of processing by compressed air from the table top 3.
    The rods 43 can close or open the holes 5 for the air flow either by rotation or by an axial displacement.
    Of course, extending in the X direction means for interrupting the connection between the distribution channels 7 and the holes 5 in the table top 3 may also be provided in combination with the formation of the connecting channel 13 according to Figures 2a, 3a and 4a.
    Alternatively to the manually operated valves 15 and the manually operated rods 43, the actuation thereof can also be carried out by appropriately trained automatically operated valves such as solenoid valves, which at the touch of a button or by the control "on" or "enable" (no figure ).
    权利要求:
    Claims (9)
    [1]
    1. A table for a flatbed printer or a flatbed cutting plotter, comprising a table top (3) with a plurality of spaced in rows in the X and Y direction, the table top (3) penetrating holes (5) above from under the table top ( 3) extending distribution channels (7), which are connected to a vacuum and / or with a compressed air source, characterized in that the distribution channels (7) are interruptibly connected to a connecting channel (13) and that in the region of the branch points from the connecting channel (13 ) are arranged to the distribution channels (7) valves (15) for opening and closing the air flow.
    [2]
    2. Table according to claim 1, characterized in that in the region of the branch points on the connecting channel (13) to the distribution channels (7), the valves (15) for opening and closing the air flow are individually actuated.
    [3]
    3. Table according to claim 2, characterized in that the valves (15) manually or automatically via actuators (35) on the connecting channel (13) are actuated.
    [4]
    4. Table according to claim 3, characterized in that the actuating elements (35) as a toggle switch or tiltable buttons (35) are formed.
    [5]
    5. Table according to one of claims 1 to 4, characterized in that the valves (15) have a tubular portion (29) which is connected to the actuating portion (31), wherein the jacket (37) of the tubular portion (29) a recess (27) and facing away from the actuating portion (31) end of the tubular portion (29) is open and with a distribution channel (7) is connected and that the recess (27) in the tubular portion (29) with the connecting channel (13 ) connected is.
    [6]
    6. Table according to claim 5, characterized in that tubular portion (29) of the valve (15) in a guide bore (23) in a valve block (21) or in the connecting channel (13) is inserted and rotatably mounted therein and that the guide bore ( 23) in the distribution channel (7) opens.
    [7]
    7. Table according to claim 1, characterized in that at one of the front edge (11) extending at right angles to the side edges of the table (1) further means for interrupting the flow of air through extending in the X direction rows of holes (5) the connecting channels (13) are formed.
    [8]
    8. Table according to claim 7, characterized in that below the table top (3) an intermediate plate (39) is arranged, the holes (5) with identical hole arrangements as in the table top (3) and that the bores (5) in the Aligned intermediate plate (39) with the holes (5) in the table top (3) that in the intermediate table plate (39) extending in the X direction, the bores (5) in the intermediate plate (39) intersecting cylindrical slots (41) are formed , in which with boreholes (45) provided rods (43) are mounted, with which the flow of air from the bores (5) in the table top (3) to the distribution channels (7) can be interrupted.
    [9]
    9. Table according to claim 8, characterized in that the rods (43) in the oblong holes (41) are rotatable or axially displaceable in order to close or open the flow of air and that for actuating the rods (43) on a or two opposite edges of the table (1) actuating elements such as switching lever (47) are arranged.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE2127160C3|1984-12-20|Device for cutting sheets or plates
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    DE1774982A1|1973-08-23|PNEUMATIC PUNCH STRIP DETECTOR
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    DE3811466A1|1989-10-19|ARRANGEMENT FOR COVERING A MULTIPLE COLORS ON A MATERIAL ON A SCREEN PRINTING MACHINE IN ORDER TO FORM A MULTICOLOR PRINTED PATTERN ON THE MATERIAL
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    DE3718925C2|1990-10-11|
    DE10028579B4|2005-08-25|Machine table for a processing machine
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    EP1902854B1|2012-11-14|Device and method for print finishing
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    DE3614076A1|1986-11-06|DEVICE FOR THE CORRECT ARRANGEMENT OF A PART TO BE SEWNED IN A SEWING MACHINE, IN PARTICULAR IN A ZIPPER TAKING MACHINE
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    同族专利:
    公开号 | 公开日
    CH713920A1|2018-12-28|
    EP3645292A1|2020-05-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4131267A|1978-06-02|1978-12-26|Disco Kabushiki Kaisha|Apparatus for holding workpiece by suction|
    US4468017A|1982-05-07|1984-08-28|The Gerber Scientific Instrument Company|Vacuum zone control valve|
    JPH0666382B2|1988-02-13|1994-08-24|株式会社新川|Substrate adsorption structure|
    JPH04171149A|1990-10-31|1992-06-18|Nippon Seiki Co Ltd|Adsorbing position converting device of suction table|
    US6543948B2|2001-02-09|2003-04-08|Hewlett-Packard Company|Printer with vacuum platen having selectable active area|
    JP5201642B2|2011-07-19|2013-06-05|株式会社日本製鋼所|Adsorption device and processing device|
    JP6478396B2|2015-03-06|2019-03-06|株式会社ミマキエンジニアリング|inkjet printer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00835/17A|CH713920A1|2017-06-26|2017-06-26|Table for a flatbed printer or a flatbed cutter.|PCT/EP2018/066210| WO2019002016A1|2017-06-26|2018-06-19|Table for a flatbet printer or a flatbet cutting plotter|
    EP18732745.7A| EP3645292A1|2017-06-26|2018-06-19|Table for a flatbet printer or a flatbet cutting plotter|
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