• 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 invention relates to a transfer device (1) for films from a film dispenser (2) to a film welding device (3) with sealing strips (5) which can be folded over at the edge into a film-laying area (4) for producing cuts for cuts with a slicing machine with a swivel arm (6) and a suction attachment (7) articulated at the free end thereof for gripping the film sections from the film dispenser (2) by means of suction cups (8) and for ejecting the film blanks after swiveling over the depositing area (4) Welding device (3). The swivel arm (6) can be pivoted beyond the discharge position into a pressing position for holding down the foils until the sweat bars (5) are folded over. The suction attachment (7) is held against rotation relative to the pivoting arm (6) during the pressing movement between the discharge position and the pressing position.
    公开号:AT517473A4
    申请号:T50626/2015
    申请日:2015-07-16
    公开日:2017-02-15
    发明作者:DKFM Kuchler Fritz
    申请人:DKFM Kuchler Fritz；
    IPC主号:
    专利说明:

    The invention relates to a transfer device for films from a film dispenser to a film welding device with edge foldable to a Folienablegebereich welding strips for the production of packages for cold cuts with a slicing machine, with a swing arm and a free end of the same hinged suction attachment for grasping the film blanks from the film dispenser by means of suction cups and for the ejection of the foil blanks after swirling over the depositing area of the welding device.
    Such a transfer device is described for example in AT 12357 Ul. In operation, the sequence of steps is as follows: From the film dispenser, a film of suitable size is picked up by the transfer device and dropped over the film-laying area of a film welding device. The film welding device is arranged in the depositing area of a cut-to-size cutting machine and from this, cuts of sausage, for example, are placed on the laid-up film. This is followed by the transfer of another film section through the transfer device, whereupon the lower and upper films are welded together by the foldable sealing strips. It is also possible to arrange several layers of cold cuts and intermediate layers of films alternately.
    The use of a swivel arm for the transfer of the films has been found to be advantageous for reasons of space, since so the overall arrangement of the components can be realized on a small footprint. For pivoting the suction attachment on the swivel arm there is a coupling between the axis of rotation of the swivel arm and the axis of rotation of the suction attachment. This means that every movement of the swivel arm also leads to a rotation of the suction attachment. In practice, this leads to several problems in the area of film ejection. If the foil shedding takes place too close to the depositing area of the welding device, it may, with already existing cold cuts, cause the foil to slip past the cold cuts due to the rotation of the suction cap and not be deposited exactly. Another problem with already existing cold cuts, especially if this is slightly thicker, is that the topmost deposited foil protrudes so far with their edges that they can no longer be detected exactly by the foldable welding bars and welding therefore not or only incomplete takes place.
    The object of the present invention is to improve the arrangement in that the transfer device accurately places the film regardless of the shape and thickness of the cut and ensures that the edges of the films can be grasped by the foldable sealing strips in every situation. The arrangement should continue to have a very space-saving footprint and the manufacturing cost of the transfer device should be kept low.
    This object is achieved in that the swivel arm on the AbwurfStellung above the optionally groove-like recessed Ablegebereichs out in a Andrückstellung for holding down the slides until the folding of the welding strips is pivotally and that the suction attachment in the pressing movement between Abwurfstellung and Andrückstellung rotationally fixed relative to the pivot arm is held. By using the suction attachment for pressing the uppermost film section through the transfer device, it can be ensured that the thickness and shape of the cut no longer significantly affect the position of the edges of the film and the foldable sealing strips can thus reliably capture the film at any time. In order to avoid that the constant pivoting of the suction attachment the film laps past the cold cuts, it is necessary that the rotation of the suction attachment is blocked in relation to the pivot arm in the last portion of the movement, whereby the suction attachment is guided as perpendicular as possible to the depositing area of the welding device. A slightly trough-like recessed storage area stabilizes and centers the discarded base film on which the cold cuts are deposited and supports the goal of congruent welding of the film to packaging of a cold cuts.
    It is a further feature of the invention that the acted upon by the angular movement of the pivot arm transmission for continuous rotation of the suction attachment is kinematically connected to a holder for the suction attachment via a driver, which transmits the torque against the force of a spring, in particular coil spring to the holder , Thus, the manufacturing cost of the pivot arm are kept low, the axis of rotation of the pivot arm is kinematically coupled to the axis of rotation of the suction attachment. This requires only a single drive for the swivel arm, the suction attachment is passively rotated. A particularly favorable type of coupling is achieved by a circulating belt, which connects the axis of rotation of the pivot arm with the axis of rotation of the suction attachment. At the axis of rotation of the swivel arm is doing a stationary in relation to the housing of the transfer gear, which is looped around by one end of the belt. At the axis of rotation of the suction attachment is a driver, which is looped from the other end of the belt. This driver is connected via a spring, preferably a coil spring with the holder for the suction attachment. Against the force of the spring thus a certain rotation of the holder relative to the driver is possible. In the movement section between AbwurfStellung and Andrückstellung so the acted upon via the belt on the driver torque can be absorbed by the spring and the holder of the suction attachment relative to the pivot arm are held against rotation.
    According to a further feature of the invention, it is provided that the holder for rotationally fixed positioning of the suction attachment when pressed by the pivot arm has a rotational stop relative to the pivot arm. This rotation stop can be realized in a simple manner, that a radially projecting from the bracket pin can be brought into operative contact with a projection on the rotating arm.
    A further feature of the invention is that the suction attachment, in addition to the suction cups and approximately in the plane of the suction cups, carries a frame for transmitting the contact pressure to the film package to be welded. In practice, so far four suction cups are used on the suction attachment, which are each arranged near the corners of the film sections. By arranging a frame which encloses substantially these four extensions of the suction attachment, the contact pressure on the edges of the film package can be uniformly transmitted and it will be avoided any unfolding of the film.
    Finally, it is a feature of the present invention that the suction cap and the foil welding device for different packaging sizes are interchangeably connected on the pivot arm and on the cutting machine. In order to be able to change quickly between different packaging sizes, it is advantageous if the welding device and the suction attachment can be exchanged quickly. The welding device is a modular component, which can be easily and quickly inserted into a designated position in the depositing area of the slicing machine. The suction attachment can be inserted into a corresponding recess in the holder of the suction attachment. As mentioned, the exact shaping of the package is favored by the positioning of the films in the film welder. In this sense, it is expedient if, in the case of a depositing area which is recessed in a groove-like manner, a welded-out packaging is designed to be like a trough-shaped ejector. It is maintained the slightly curved stabilizing shape of the discarded base film and ejection by means of an ejector according to AT 514 795 Bl results in a centering of the sliding out of the package to the center line.
    The invention will now be described in more detail with reference to the accompanying drawings, in which
    1 shows a schematic view of the movement sequence of the transfer device,
    2 shows a cross section through the holder for the suction attachment in the region of the rotation stop,
    Fig. 3 shows a cross section through the pivot arm in the region of the connection between the holder and driver and
    Fig. 4 shows a schematic plan view of a suction attachment and the free end of the swivel arm with holder.
    1 shows a transfer device 1 for films of a schematically illustrated film dispenser 2 to the storage area 4 of a film welding device 3. The film welding device 3 is arranged in the storage area of a slicing machine, not shown. The welding device 3 has at the edges of the storage area 4 foldable sealing strips 5, which weld together the edges of the superimposed films of a finished sliced packaging. Within a swivel arm 6 (FIG. 3), a gear 9 is provided, which is coupled via a belt 20 to a driver 11 which is located at the free end of the swivel arm 6. The driver 11 is coupled to a suction attachment 7 with suction cups 8 at the ends.
    The gear 9 is rigidly mounted relative to the housing of the film dispenser 2. As the gearbox 9, a pulley (toothed belt pulley) may be rotatably mounted, over which the belt 20, e.g. a toothed belt, is guided. If the swivel arm 6 is moved downwards from its rest position in the direction of the release position (see dashed positions in FIG. 1), then the belt 20 also rotates via the fixed gear 9 and consequently also the driver 11 with the suction attachment 7 coupled thereto.
    Thus, only one motor must be provided for rotating the pivoting arm 6, since the necessary rotation of the suction attachment takes place through the coupling between the transmission 9 and the driver 11.
    The lowest in Fig. 1 position shown in dashed lines of the suction attachment 7 shows the previous AbwurfStellung the film over the storage area 4 of the film welding device 3. In a thicker sliced package it comes to the aforementioned problems that on the one hand, the rotational movement of the suction attachment 7 passes by the cold cuts and so may lead to an inaccurate storage of the film or on the other hand, due to the thickness of the package, the film edges of the welding bars 5 can no longer be detected correctly.
    According to the invention, these problems are solved in that the swivel arm 6 is moved beyond the release position into a pressing position, the suction cups 8 of the suction attachment 7 pressing the film onto the storage area 4 of the film welding device 3. As a result, the edges of the film can always be reliably detected by the welding strips 4. In order to avoid the lateral movement and the uncontrolled passing of the film on the slicing package, it is provided that the suction attachment 7 is rotatably held in this last movement section relative to the pivot arm 6 and thus is guided almost vertically from above onto the slicing package.
    The non-rotatable coupling between the pivot arm 6 and suction attachment 7 is achieved in that, as shown in Fig. 2, on the holder 10 for the suction attachment 7, a rotational stop 13 is provided. This rotational stop is achieved, for example, in that a projection 15 is provided on the pivoting arm 6, which cooperates with a pin 14 which is arranged on the holder 10. Upon reaching the release position of the pin 14 abuts the projection 15 of the pivot arm 6, whereby the holder 10 and thus also the suction attachment 7 is no longer rotated in a continuation of the pivot arm 6 in the direction of pressing.
    However, since the coupling between the driver 11 and the transmission 10 also necessarily requires a rotation of the driver 11 in the last movement section, a spring 12 is provided for coupling between the driver 11 and the holder 10, as shown in FIG. The coil spring shown is connected at one end to the driver 11 and at the other end to the bracket 10 and is stretched in the last movement section, whereby the rotationally fixed support between the suction attachment 7 and pivot arm 6 is made possible.
    Fig. 4 shows a possible embodiment of a suction attachment 7, which has a frame 16 in the plane of the suction cups 8, which ensures a uniform contact pressure along the edges of the film. The suction attachment 7 is made replaceable in this embodiment. For this purpose, it is simply inserted by means of a plug-in extension 18 in a corresponding receptacle 17 in the holder 10. On plug-in extension 18 also seals 19 are provided, which ensure the function of the vacuum lines in the suction attachment 7. It can thus be exchanged suction cups 7 for different pack sizes in a simple and fast way. Together with the replacement of the suction attachment 7, the welding device 3, which is arranged in the depositing area of a slicing machine (not shown), can be exchanged in accordance with the respective package size.
    In Fig. 1, a groove-like depression of the depositing area 4 'is shown by dashed lines. A discarded from the suction attachment 7 film is thus stored centering and is dimensionally stabilized. A possible hinged ejector for the finished packaging then also has a gutter shape that favors the centering sliding of the swung-ejector.
    权利要求:
    Claims (6)
    [1]
    Claims:
    1. Transfer device (1) for films from a film dispenser (2) to a film welding device (3) with edges to a Folienablegebereich (4) foldable welding strips (5) for the production of packaging for cold cuts with a slicing machine, with a swivel arm (6) and a suction attachment (7) articulated at the free end thereof for gripping the film blanks from the film dispenser (2) by means of suction cups (8) and for ejecting the film blanks after swiveling over the depositing area (4) of the welding device (3), characterized in that Swing arm (6) on the AbwurfStellung above the possibly groove-like recessed Ablegebereichs in a Andrückstellung for holding down the slides until the folding of the welding strips (5) is pivotable and that the suction attachment (7) in the contact movement between Abwurfstellung and Andrückstellung rotationally fixed relative to the pivot arm (6) is held.
    [2]
    2. Transfer device according to claim 1, characterized in that by the angular movement of the pivot arm (6) acted upon transmission (9) for continuous rotation of the suction attachment (7) with a holder (10) for the suction attachment (7) via a driver (11 ) is kinematically connected, which transmits the torque against the force of a spring (12), in particular spiral spring to the holder (10).
    [3]
    3. Transfer device according to claim 2, characterized in that the holder (10) for rotationally fixed positioning of the suction attachment (7) during the pressing movement by the pivot arm (6) has a rotational stop (13) relative to the pivot arm (6).
    [4]
    4. Transfer device according to one of claims 1 to 3, characterized in that the suction attachment (7) in addition to the suction cups (8) and approximately in the plane of the suction cups carries a frame (16) for transmitting the contact pressure to the film package to be welded.
    [5]
    5. Transfer device according to one of claims 1 to 4, characterized in that the suction attachment (7) and the film welding device (3) are exchangeably connected for different packaging sizes on the pivot arm (6) or on a slicing machine.
    [6]
    6. Transfer device according to one of claim 1, characterized in that in a trough-like recessed storage area a welded packaging under cross-pivoting ejector is formed like a channel.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE202016103863U1|2016-08-03|
    AT517473B1|2017-02-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT12357U1|2010-09-09|2012-04-15|Kuchler Fritz|ARRANGEMENT OF A FOIL DISPENSER, A FILM WELDING DEVICE AND A TRANSFER DEVICE|
    AT514795B1|2013-10-10|2015-04-15|Kuchler Fritz|Discharge device for a cold cuts|AT16158U1|2017-08-01|2019-02-15|Dkfm Fritz Kuchler|suction head|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50626/2015A|AT517473B1|2015-07-16|2015-07-16|Transfer device for films from a film dispenser to a film welding device|ATA50626/2015A| AT517473B1|2015-07-16|2015-07-16|Transfer device for films from a film dispenser to a film welding device|
    DE202016103863.4U| DE202016103863U1|2015-07-16|2016-07-15|Transfer device for films|
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