• 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:

    公开号:DK200700090U1
    申请号:DK200700090U
    申请日:2007-03-09
    公开日:2007-04-13
    发明作者:Nissen Richard
    申请人:Nissen Richard；
    IPC主号:
    专利说明:

    DK 2007 00090 U3
    VAKUUMHQLDEUDSTYR
    The prior art
    The invention relates to a vacuum holding equipment for lifting and / or transporting sheet-shaped items such as cardboard sheets, plywood sheets and the like, which equipment comprises a roller or cylinder, the outside of which is wrapped, perforated for passage of air which is extracted from the interior of the roller to form a vacuum. for holding the workpiece in contact with the plant.
    The use of vacuum for retaining sheet-shaped blanks is well known in the art and is used everywhere where single sheet handling is required in connection with production and transport thereof from a position, such as a stack, to a machining or depositing position.
    Various types of vacuum rollers or cylinders are known. Especially in the printing industry, where it is commonly used to use vacuum lifting equipment to lift the top sheet from a stack using a vacuuming equipment.
    From DE 2754370 A1 an example of such an equipment is known in the form of a cylinder with openings evenly distributed throughout the housing. In order to ensure that there is only passage through the openings which are adjacent to the workpiece, valve bodies are mounted in all openings. This is a very vulnerable and uncertain way of limiting the vacuum loss, as the many valve bodies are easily leaking, reducing the vacuum and thus the holding power.
    Purpose of production
    The purpose of the production is to improve vacuum holding equipment so that a high lifting force is obtained at the lowest possible vacuum consumption, and this is achieved according to the production by that the suction through the scoop is limited to the area which forms the contact surface between the roller, the cylinder and the workpiece.
    2 DK 2007 00090 U3 In this surprisingly simple way, the vacuum is utilized optimally, and a secure and stable holding power with the lowest possible energy consumption is ensured.
    By providing, as defined in claim 2, a suction duct, a vacuum duct which opens next to the point of contact, and providing it with a valve, a simple valve will be able to control the vacuum flow through the casing. This ensures that vacuum is consumed only when there is contact with a workpiece surface to produce the holding effect.
    By forming the valve with a movable valve body, as defined in claim 3, this will be sucked against the cooperating valve seat and block the atmospheric air.
    As provided in claim 4, to provide the valve with a minor leakage, upon closing there will be a limited air passage through the valve to ensure that vacuum immediately arises upon contact with a workpiece surface.
    As directed in claim 5, controlling the valve body by means of a closed resilient container will, depending on the ambient air pressure of the container, be opened or closed for passage by actuation of the valve body.
    By providing a resilient porous coating as claimed in claim 6, good contact with the workpiece will be obtained, although this may have an irregular surface.
    Finally, as claimed in claim 7, it is advantageous to provide the coating with prominent uniformly high resilient ribs, thereby ensuring good contact with the workpiece.
    3 DK 2007 00090 U3
    The drawing
    Embodiments of the equipment according to the invention will now be described in more detail with reference to the drawing, in which: FIG. 1 shows an example of lifting items from a stack; FIG. 2 is an end view of the stack and a vacuum cylinder; FIG. 3 is a sectional view of a vacuum cylinder with two examples of valves in the vacuum duct; FIG. 4 shows an example of the surface with ribs and air gaps; FIG. 4A shows the profile shape of a rib, and FIG. 5 shows a sectional view of a cylinder with two further examples of valves.
    Description of the Examples
    The production will be described in the following in connection with the use for raising sheets, such as veneer sheets and the like from a stack.
    In FIG. 1 is a schematic representation of a stack of plate-shaped workpieces 1 stacked on a pallet placed on a lifting device such that the stack can be raised to abut against a series of vacuum holding cylinders 3 placed above the stack as shown.
    These cylinders 3 are connected to a vacuum source so that the top plate will be sucked to the cylinders 3 upon contacting them.
    If it is a matter of feeding a system with plates individually, all the cylinders above the stack will be able to move away and possibly via a support of a 4 DK 2007 00090 U3 series of brush cylinders 4 to a position not shown.
    Such a transport of a plate can take place by deposition on a roller track with swivel cylinders 5.
    In FIG. 2 shows the stack with the plate stack 1 and a vacuum cylinder 3 seen from the end.
    It is noted that the cylinder 3 is mounted in pin 4 at the sides of a hydraulic or pneumatic pad or hose 5, so that there is some vertical movement of the individual cylinders 3 so that their position can be adjusted according to the workpiece.
    In FIG. 3 is a sectional view of a cylinder 3.
    Inside the cylinder is a tubular aperture 14 which controls air inflow through the exterior of the cylinder.
    An aperture 15 is shown in which passage can be controlled by turning the aperture 14, and the tube is provided with cooperating partitions to form sections which can operate individually. This allows the vacuum cylinder to be adapted to the width of the blanks.
    A duct 10 leads from the suction duct through the tube 14 to a valve comprising a seat 12 with small passageways 13 for security against locking of the valve body 11 to the seat so that it can be moved more easily from the seat 12.
    The duct 10 opens out against the openings 6A in the shell 14, which is adjacent to the abutment area of the blank 1 when the parts are in contact with each other.
    In FIG. 3, an embodiment is shown below where the valve body 11 is in the form of a ball so that it can abut the seat 12 with passages 13.
    5 DK 2007 00090 U3
    Other forms of valve bodies may be conceived, the purpose of the valve being to activate, move, the body at an increased air flow when contact with the surface of the underlying workpiece is not present. This saves unnecessary consumption of vacuum.
    The valve body 11 is sucked into abutment against the seat 12 when no blank 1 is on the openings 6A, and the valve body is therefore sucked into a shut-off so that the air passage through the duct 10 is partially interrupted.
    In FIG. 3, a flat valve body 11 is shown at the top while it has a ball-shaped bottom.
    In FIG. 5 shows an alternative design of the valve structure. Here, the moving device is constituted by closed flexible chambers 16 which, depending on the ambient air pressure, control the valve body 11.
    When a blank 1 blocks the air passage, the pressure drops and the containers 16 expand so that the valve body 11 is lifted free of the seat 12.
    In the lower example of FIG. 5, the valve body is constituted by a rocker body 17 which opens and closes passage 15 to the vacuum source.
    In all the examples of valve devices shown, small passages 13 are formed in the valve seat 12, and in the embodiment shown in FIG. 5 shows a tilting valve body 17 a channel 18 through the body, all of which ensures that the valve body is not locked to the seat but can be moved when contact with a workpiece is established and the vacuum passage must be established.
    The cylinder sleeve 14 is as indicated in FIG. 3 provided with openings 6A throughout the scope of the envelope, which openings provide passage for the vacuum.
    6 DK 2007 00090 U3
    In the example shown, the surface is covered by a layer of cellular rubber 15, the structure of which is such that the air can pass from outside and through the layer via airways 6 and further through the shroud 14 to the vacuum duct 10.
    In order to ensure the best possible contact with the workpiece 1, a rib pattern may be further formed, as indicated in FIG. 4, which pattern is formed as an outer layer 7. This rib pattern can be adapted to the extent of the blanks, and where there is a division into sections, there must be no connection transitions in the pattern. Other patterns may be conceived, such as a "herringbone pattern" or the like on sloping patterns.
    Between the ribs 9 whose profile is indicated in FIG. 4A, there are apertures 8 for the air inflow.
    This rib pattern ensures that non-planar surfaces of the workpiece can adhere to the cylinder, as the ribs, by their flexible design, will be able to adapt to the surface of the workpiece 1.
    The equipment according to the production hereby ensures that no unnecessary consumption of vacuum takes place, and since the equipment is simple and robust, the reliability is great,
    权利要求:
    Claims (7)
    [1]
    1. Vacuum holding equipment for lifting and / or transporting sheet-shaped items such as cardboard sheaves, plywood sheets and the like, comprising a roller or cylinder, the outside of which is wrapped, perforated for passage of air which is extracted from the interior of the roller to form a vacuum to retaining the workpiece during contact and contact with it, which vacuum holding equipment is new in that the suction through the scoop (7, 9,14,15) is limited to the area which forms the contact surface between the roller, the cylinder (3) and the workpiece (1) .
    [2]
    Vacuum holding device according to claim 1, which is new in that the constraint is constituted by a vacuum duct (10) provided with a valve (11, 12, 13) for blocking the air passage when there is no direct contact with the workpiece (1). ).
    [3]
    Vacuum holding equipment according to claims 1 and 2, which is new in that the valve comprises a valve body (11) which can be drawn from the vacuum to a valve seat (12) in the vacuum duct (10).
    [4]
    Vacuum holding equipment according to claim 3, which is new in that a leak (13) is formed in the form of a restricted air passage between the valve body (11) and the valve seat (12).
    [5]
    Vacuum holding equipment according to claims 1 and 2, which is new in that the valve body (11) rests on an air-filled resilient body (16), which in vacuum expands to open for passage through the vacuum duct (10).
    [6]
    Vacuum holding equipment according to claim 1, which is new in that the outer surface of the shell (14) is provided with a porous resilient coating (15),
    [7]
    Vacuum holding equipment according to claims 1 and 5, which is new in that the coating (17) is provided with evenly distributed flexible rib projections (9) with equal rib height.
    类似技术:
    公开号 | 公开日 | 专利标题
    US20120274011A1|2012-11-01|Vacuum-gripper
    JP2010515863A|2010-05-13|Ejector device having ventilation function
    CN101447406B|2013-07-24|Loadlock designs and methods for using same
    CN2892771Y|2007-04-25|Exhaust suction disc
    US9157538B2|2015-10-13|Method of operating a valve
    TWI553767B|2016-10-11|Vacuum treatment apparatus
    KR20160078280A|2016-07-04|Non-contact transferring device and non-contact suction plate
    JP2007142267A5|2008-12-18|
    DK200700090U3|2007-06-08|Vacuum Hold Equipment
    US20060180040A1|2006-08-17|Apparatus for carrying or guiding a printing material sheet
    AU2006299312A1|2007-04-12|A vacuum holding- device
    US8905538B2|2014-12-09|Vacuum relief
    US20080174652A1|2008-07-24|Print media support system and method
    US3582144A|1971-06-01|Valve for air conveyor
    WO2006024295A1|2006-03-09|A vacuum holding device
    JPH06126676A|1994-05-10|Suction holder and suction lifting device
    KR20100009856A|2010-01-29|Positioning device
    JP6086476B2|2017-03-01|Substrate floating device
    EP2236252B1|2012-10-31|Device for gripping an object by suction
    US3698755A|1972-10-17|Vacuum head magnetic valve construction for pallet loader
    CN109476432B|2021-10-08|Media transport with suction holes
    JP2004338311A5|2005-08-04|
    JP2013129037A|2013-07-04|Suction conveyance method and plate material suction conveyance device
    USD426615S|2000-06-13|Supply and exhaust block for manifold solenoid valve
    JP2794364B2|1998-09-03|Air levitation method and device
    同族专利:
    公开号 | 公开日
    DK200700090U3|2007-06-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA200401300|2004-08-28|
    DK200700090U|DK200700090U3|2004-08-28|2007-03-09|Vacuum Hold Equipment|DK200700090U| DK200700090U3|2004-08-28|2007-03-09|Vacuum Hold Equipment|
    [返回顶部]