• 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:
    Conveying device (24) for plate-shaped workpieces (26), having a horizontally arranged roller conveyor (28), which, seen in a conveying direction (30), successively a plurality of roller rows (32) having at least some driven rollers or roller rollers (34) wherein the rows of rollers (32) extend transversely to the conveying direction (30), are spaced from one another and define with their upper side a horizontal conveying plane (36), characterized in that the conveying device (24) comprises a lowering device (38) which comprises a plurality of Lowering elements (40) arranged in vertical and transversely to the conveying direction (30) extending planes (42) lying between at least some of the roller rows (32), wherein at least some of the Absenkelemente (40) independently between an upper position in which the upper side of a lowering element (40) is arranged in a feed plane (46) above the conveying plane (36) of the roller conveyor (28). is located, and a lower position in which the top of a lowering element (40) at most in the conveying plane (36) of the roller conveyor (28) is vertically movable.
    公开号:AT13066U1
    申请号:TGM722/2007U
    申请日:2007-11-29
    公开日:2013-05-15
    发明作者:
    申请人:Holzma Plattenaufteiltechnik；
    IPC主号:
    专利说明:

    Austrian Patent Office AT13 066U1 2013-05-15
    Description: The invention relates to a conveying device for plate-shaped workpieces according to the preamble of claim 1 as well as to a plate dividing system according to the preamble of the independent claim.
    From the market plate dividing systems are known with which large format plates can be divided into individual workpieces. They include a cross-saw, which the large-sized plates by means of a program pusher on which collets are present, fed. As seen in the conveying direction after the cross-saw the separated workpieces are pushed by the program pusher and held by this residual workpiece on a friction roller conveyor, where they are carried away. In such a friction roller conveyor, the roller comprises a rotating drive shaft and a ring element pushed onto the latter under a certain frictional engagement.
    Object of the present invention is to provide a conveyor, which allows a particularly reliable discharge of plate-shaped workpieces with high clock rates.
    This object is achieved by a conveying device with the features of claim 1, and with a panel-splitting with the features of the independent claim. Advantageous developments are specified in subclaims. In addition, the invention features important features in the following description and the drawing, these features may be important both alone and in combination for the invention, without being explicitly pointed out.
    The conveying device according to the invention has the advantage that in it the feeding of a workpiece and the discharge are decoupled. As a result of this decoupling, one workpiece can already be conveyed away from the roller conveyor, while another workpiece is already pushed back onto the lowering device. An important element of the invention which contributes to this advantage is the fact that at least some of the lowering elements are vertically movable independently of each other. As soon as a workpiece is set in motion by the roller conveyor, those lowering elements which are already free of the workpiece, that is no longer below the workpiece which has just been removed by the roller conveyor, can be raised again into the upper position, where they support the support next supplied workpiece are available. Ultimately, this will improve the clock rate of the conveyor.
    The invention makes it possible that the driven rollers of the roller conveyor are driven without slippage. When lowering the lowering elements such that the workpiece is lowered onto the roller conveyor, the driven rollers can stand still. Only when the workpiece rests on the roller conveyor, the rollers driven, whereby the workpiece is conveyed away. Above all, high-gloss-coated workpieces or particularly light workpieces can be reliably conveyed away, without any traces or even damage being caused by rollers rubbing against the surface of the workpiece.
    A further advantageous embodiment of the invention provides that the conveyor device comprises a control device is programmed to perform the following steps: (a) transporting a workpiece to be abzufördernden on the lowering device; (B) Lowering those lowering elements, which are located below the workpiece to be removed, in the lower position; (c) driving the rollers of the roller conveyor; (D) raising a lowering element in the upper position as soon as it is no longer below the workpiece to be abzufördernden. In this way, the operation of the conveyor is completely automated, which again allows an increase in the clock rate or the delivery capacity of the conveyor device according to the invention. This assumes, of course, that there is a device which independently recognizes or determines above which lowering elements a workpiece to be conveyed is arranged, or which lowering elements are already free from the workpiece being conveyed away. These can then be immediately re-controlled in 1/11 Austrian Patent Office AT 13 066 U1 2013-05-15 their upper position.
    Particularly advantageous is that development in which the control device in step (c) drives the rollers of the roller conveyor according to a predetermined speed profile. Such a can be realized for example by a frequency converter. As a result, traces of rubbing on the workpiece surface rollers are even more reliably avoided.
    In a further development, it is proposed that the control device is connected to a slip detection device and accelerates the rollers of the roller conveyor so that a certain slip is not exceeded. Such a slip detection device operates similar to an ABS in a motor vehicle and provides particularly reliable that a workpiece as soon as possible is conveyed away from the roller conveyor, so that the lowering of the lowering can be brought back to its upper position as soon as possible, in which they are available for picking up the next workpiece.
    The conveying device according to the invention may comprise a horizontal feed table, wherein in the upper position of a lowering element whose upper side lies in the plane of the feed table. Such a feed table can bridge the area between a saw line and the beginning of the roller conveyor and the lowering device in a simple manner, for example, in a panel-dividing installation, in particular in a panel-type cross-saw.
    In this context, it is particularly advantageous if the conveyor device comprises a remnant workpiece transport device which can transport a lying at least partially on the feed table residual workpiece from the feed to the lowering device. This is based on the consideration that, especially with a panel splitter, the program slider can not move beyond the saw line. The remainder workpiece transport device proposed according to the invention ensures that the " last " Workpiece can be reliably transported to the lowering device or roller conveyor.
    A structurally simple realization of such a residual workpiece transport device comprises at least one vacuum gripper, which can be arranged above the feed table and the roller conveyor and the lowering device.
    In many cutting operations remains at the end of a splitting operation leftover residue that is not to be removed, but in which it is simply waste. Such can be disposed of in a simple manner, if the feed table includes a waste flap or is designed as a waste flap.
    A certain lateral guidance of a workpiece during that phase in which it is pushed onto the lowering device is ensured when the upper side of at least one lowering element is formed by at least one preferably non-driven roller. Alternatively or additionally, the top of at least one lowering element but also include a brush element, which is inexpensive to implement.
    Hereinafter, an embodiment of the invention will be explained with reference to the accompanying drawings.
    In the drawing, Figures 1 to 9 show a schematic side view of a plate cross saw with a conveyor at different times during operation of the plate cross saw.
    A Plattenaufteilanlage in the form of a plate cross-saw is designated in the figures 1 to 9 in total with 10, wherein the figures are highly schematic and not all elements and areas of the plate cross-saw 10 show.
    The plate cross-saw 10 includes a sawing device whose sawing direction is perpendicular to the sheet planes of Figures 1 to 9. A sawing line of the sawing device is indicated in the figures 1 to 9 by a dot-dash line with the reference numeral 12. In the 2/11 Austrian Patent Office AT 13 066 U1 2013-05-15
    Figures substantially to the left of the saw line 12, a support table 14 is arranged, on which rest one or more large-sized plates 16 which are to be divided successively during operation of the plate-cross saw 10 of the sawing device. For this purpose, the plates 16 are gripped at their end remote from the saw line 12 end of collets 18 which are attached to a program pusher 20.
    Right of the saw line 12 is followed by the feed table 14, a feed table 22, which is designed as a waste flap. The exact function will be discussed in more detail below. The feed table 22 belongs to a conveying device 24, by means of which a workpiece 26 separated from a plate 16 can be conveyed away (in the functional sequence explained below, successively separated workpieces are referred to by the indices a, b and c).
    To the conveyor device 24 further includes a horizontally arranged roller conveyor 28. In a conveying direction, which is indicated in the figures by an arrow 30, the roller conveyor 28 has a plurality of rows of rollers 32, of which in the figures for reasons of representation, however only the first three are provided with reference numerals. Each row of rollers 32 extends transversely to the conveying direction 30, that is perpendicular to the plane of the figures, and each roller row 32 has a directly, that can be driven without slippage roller roller 34 having on its surface a Aufschießschlauch of PVC (not shown) to the To increase grip between roller roller 34 and workpiece 26 and to better protect a sensitive surface on the workpiece 26. Again, for reasons of illustration, only the roller rollers 34 of the first three rows of rollers 32 seen in the conveying direction 30 are provided with reference numerals. It can be seen that the roller rows 32 are spaced apart in the conveying direction 30, and that they define a horizontal conveying plane 36 with their upper side.
    Furthermore, the conveying device 24 comprises a lowering device 38. This has a plurality of lowering elements 40, of which, for reasons of presentation, again only the first three lowering elements, as seen in the conveying direction 30, are marked with reference numerals. The lowering elements 40 are formed as transversely to the conveying direction 30, so perpendicular to the plane of the figures extending transverse rails having on its upper side non-driven rollers (not shown). Alternatively or additionally, brush elements can also be used. In each case between two adjacent rows of rollers 32, a cross rail 40 in a vertical and extending transversely to the conveying direction plane 42 is arranged, which, however, is drawn only in Figure 1. Each Absenkelement 40 has a pneumatic actuator 44, with which it independent of the other Absenkelementen 40 from an upper position in which the top of the Absenkelements 40 lies in a feed plane 46, in a lower position in which the top of the Absenkelements 40 scarce below the conveying plane 36 of the roller conveyor 28, and can be moved back vertically. Again, for presentation purposes, the feed plane 46 is indicated only in Figure 1 by a dash-dotted line. It can be seen there that the feed plane 46 is above the conveying plane 36.
    The plate cross saw 10 and the conveyor 24 include a control device 48 which controls the operation of the plate cross saw 10 and the conveyor 24. The controller 48 includes a memory on which is stored a computer program which is programmed to enable a significant amount of automatic operation of the disk saw 10.
    In the figures 6 to 9, a remnant workpiece transport device 50 is also shown, but only in Figure 6 completely provided with reference numerals. In the present case, this comprises a carriage 52 which is movably mounted on a rail 54 extending parallel to the conveying direction 30. Arranged on the carriage at an arm 56 extending counter to the conveying direction 30 is a row of vacuum grippers 58 extending transversely to the conveying direction 30, ie perpendicular to the plane of the sheets of FIGS. 6 to 9. The vacuum grippers 58 are vertically movable. It can be seen from FIGS. 6 to 9 that the entire remainder of the piece of work remains
    Transport device 50 above an adjacent to the feed table 22 region of the roller conveyor 28 and the lowering device 38 and above the feed table 22 can be arranged. The remaining workpiece transport device 50 is also actuated by the control device 48.
    The operation of the plate cross-saw 10 will now be explained in more detail with successive reference to Figures 1 to 9. In FIG. 1, a first workpiece 26 a has been separated from the overall plate 16 by the sawing device in the region of the saw line 12. The severed workpiece 26a lies partly on the support table 14, partly on the feed table 22 arranged behind the saw line 12 as viewed in the conveying direction 30. The lowering elements 40 closest to the feed table 22 are in their upper position. The roller rollers 34 of the roller conveyor 28 stand still.
    As can be seen from Figure 2, the program pusher 20 now pushes the plate 16 further in the conveying direction 30, whereby the separated workpiece 26a in the conveying direction 30 is pushed onto the lowering elements 40 located in the upper position. This movement is indicated by an arrow 60 in FIG.
    Due to the cutting plan stored in the control device 48 and the known advance by the program pusher 20, the control device 48 knows above which lowering elements 40 the separated workpiece 26a is located. In one embodiment, not shown, each lowering element additionally or alternatively associated with a detection device which detects whether above the respective lowering element a workpiece is or not. The pneumatic actuators 44 of the three lowering elements 40, which are located below the workpiece 26a in FIG. 2, are now controlled by the control device 48 such that the three lowering elements 40 move from their upper position (feed plane 46) to their lower position (just below the conveying plane 36) are moved vertically. As a result, the workpiece 26a comes to lie on the roller rollers 34 of the roller conveyor 28. The lowering elements 40 arranged to the right of the workpiece 26a in FIGS. 2 and 3 are also moved to their lower position. In contrast, the lowering elements 40 present in FIGS. 2 and 3 to the left of the workpiece 26a remain in their upper position (feed plane 46).
    Once the workpiece 26a rests on the roller conveyor 28, the control device 48 controls a drive, not shown, of the roller rollers 34 of the roller conveyor 28 so that the roller rollers 34 are driven according to a predetermined speed profile, whereby the workpiece 26a is moved in the conveying direction 30 (Arrow 62 in Figure 3). Meanwhile gripped by the collets 18 on the program pusher 20 plate 16 in the saw line 12 is sawed again in the desired manner and a new workpiece 26 b separated.
    Instead of a predetermined speed profile could also be provided that the controller 48 is connected to a slip detection device, which, similar to an ABS of a motor vehicle, detects whether the roller rollers 34 with respect to the abzufördernden workpiece 26a exceed a certain slip or not. Thereby, a maximum acceleration of the workpiece 26a is made possible without the roller rollers 34 leaving undesirable traces on the surface of the workpiece 26a due to excessive slippage.
    As is apparent from Figure 4, the pneumatic actuator 44 of a lowering element 40 is controlled by the control device 48 so that the lowering element 40 moves back to its upper position as soon as the corresponding lowering no longer below the in the conveying direction 30 accordingly Arrow 62 moving away first workpiece 26a is located. Thus, while the first workpiece 26a is being conveyed away from the roller conveyor 28, the program pusher 20 can again move the plate 16 and thus the second workpiece 26b in the conveying direction 30 (arrow 64 in FIGS. 4 and 5). As soon as the program pusher 20 has completed its feed movement and the second workpiece 26b is completely in the area of the lowering device 38 and the roller conveyor 28, too
    权利要求:
    Claims (12)
    [1]
    Austrian Patent Office AT13 066U1 2013-05-15 det, and the second workpiece 26b is lowered onto the roller conveyor 28 and conveyed away from this, as was explained above in connection with Figures 3 and 4 for the first workpiece 26a. Due to the principle, the program pusher 20 seen with the collets 18 in the conveying direction 30 can not move across the saw line 12 away. Therefore, when the last workpiece 26c (" residual workpiece ") has been sawed off by the sawing device, as shown in Fig. 6, the program pusher 20 moves backward (arrow 66 in Fig. 6) to grip a new large-size disk and the Feed sawing line 12. In order to be able to move the remaining workpiece 26c to the roller conveyor 28 and the lowering device 38, the remainder workpiece transport device 50 is now used: As can be seen from FIG. 6, the carriage 52 is first moved counter to the conveying direction 30 during the last sawing cut, and the vacuum grippers 58 are lowered so that they can engage the surface of the remainder workpiece 26c, as shown in FIG. Then, the carriage 52, controlled by the control device 48, moves in the conveying direction 30 (arrow 68 in FIG. 7) until the remaining workpiece 26c lies completely in the area of the roller conveyor 28 and the lowering device 38. If so, the vacuum grippers 58 release the remainder of the workpiece 26c and are raised (Figure 8) and lowered the lowering members 40 to their lower position so that the remainder of the workpiece 26c can be removed, as in connection with the first workpiece 26a (Figures 3 and 4) has been explained (arrow 70 in Figure 9). It is understood that, in the sense of a close kinematic reversal, the lowering device can also be stationary, and the roller conveyor can have independently liftable rows of rollers. Claims 1. A conveyor device (24) for plate-shaped workpieces (26), comprising a horizontally arranged roller conveyor (28) which, seen in a conveying direction (30), successively comprises a plurality of roller rows (32) with at least some driven rollers or roller rollers (34 ), wherein the roller rows (32) extend transversely to the conveying direction (30), are spaced from each other and define with their top a horizontal conveying plane (36), wherein the conveying device (24) comprises a lowering device (38), which comprises a plurality of Absenkelementen (40) which are arranged in vertical and transversely to the conveying direction (30) extending planes (42) between at least some of the roller rows (32), characterized in that in a vertical plane (42) each have a lowering element (40) is arranged, and at least some of the Absenkelemente (40) independently of each other between an upper position in which the upper side of an A Bsenkelements (40) in a feed plane (46) above the conveying plane (36) of the roller conveyor (28), and a lower position, in which the upper side of a lowering element (40) at most in the conveying plane (36) of the roller conveyor (28) , are vertically movable.
    [2]
    2. conveying device (24) according to claim 1, characterized in that the driven rollers or roller rollers (34) of the roller conveyor (28) are driven without slippage.
    [3]
    3. A conveyor (24) according to any one of claims 1 or 2, characterized in that it comprises a control device (48) which is programmed to carry out the following steps: (a) transporting a abgezufördernden workpiece (26) on the lowering device (38 ); (b) lowering those lowering members (40) located below the workpiece (26) to be removed to the lower position; (c) driving the rollers or roller rollers (34) of the roller conveyor (28); (D) lifting a lowering element (40) in the upper position when it is no longer below the workpiece to be abzufördernden (26). 5/11 Austrian Patent Office AT 13 066U1 2013-05-15
    [4]
    4. conveying device (24) according to claim 3, characterized in that the control device (48) is programmed so that in step (c) the rollers or roller rollers (34) of the roller conveyor (28) are driven according to a predetermined speed profile.
    [5]
    5. Conveying device according to claim 3, characterized in that the control device is connected to a slip detection device and the control device is programmed so that the rollers of the roller conveyor are accelerated so that a certain slip is not exceeded.
    [6]
    6. conveying device (24) according to any one of the preceding claims, characterized in that it comprises a horizontal feed table (22) whose upper side lies in the feed plane (46).
    [7]
    7. conveying device (24) according to claim 6, characterized in that it comprises a residual workpiece transport device (50), which at least partially on the feed table (22) lying residual workpiece (26) can be removed from the feed to the lowering device (38).
    [8]
    8. conveying device (24) according to claim 7, characterized in that the residual workpiece transport device (50) comprises at least one vacuum gripper (58) which can be arranged above the feed table (22) and the roller conveyor (28) and the lowering device (38) ,
    [9]
    9. conveying device (24) according to one of claims 6 to 8, characterized in that the feed table (22) comprises a waste flap or is designed as a waste flap.
    [10]
    10. conveying device (24) according to one of the preceding claims, characterized in that the upper side of at least one lowering element (40) is formed by at least one preferably non-driven roller.
    [11]
    11. Conveying device (24) according to one of the preceding claims, characterized in that the upper side of at least one lowering element (40) comprises a brush element.
    [12]
    12. Plattenaufteilanlage (10), in particular Plattenquersäge, characterized in that it comprises a conveying device (24) according to one of the preceding claims. For this 5 sheets drawings 6/11
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4233082A1|1992-10-01|1994-04-07|Erwin Jenkner|Roller table, especially for the angular transfer of plate-shaped materials|
    DE9318578U1|1993-12-04|1994-02-10|Holzma Maschinenbau Gmbh|Rotary device for plates or plate stacks, in particular for a sorting and stacking system for plate blanks on a sizing machine|
    AT408879B|1999-05-10|2002-03-25|Holzma Maschb Gmbh|DEVICE FOR LATERALLY MOVING PLATE-SHAPED WORKPIECES|DE102015106034A1|2015-04-20|2016-10-20|Interroll Holding Ag|Installation method for setting up conveying devices|
    WO2016177906A1|2015-05-07|2016-11-10|Interroll Holding Ag|Control unit for a conveyor with hardware detection|
    US10301118B2|2014-10-30|2019-05-28|Interroll Holding Ag|Conveyor device for conveyor installations, a modular system, and a method for producing such a conveyor device|
    DE102015208321A1|2015-05-05|2016-11-24|Holzma Plattenaufteiltechnik Gmbh|Board processing plant|
    法律状态:
    2018-01-15| MK07| Expiry|Effective date: 20171130 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE200720016420|DE202007016420U1|2007-11-22|2007-11-22|Conveying device for plate-shaped workpieces|
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