• 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 welding device (1) for welding two superimposed films or film sections with a base surface (2) arranged in particular as a depositing tray for a slicing machine and the base surface (2) on the sides bordering pliers-like folding strips (3, 7). with heating elements (4), which clamp the edges of the films or foil sections between the respective strips (3, 7) and the base surface (2) during the welding process and weld them together by the respective heating element (4), and wherein the strips (3, 7) are folded upwards in the initial position, whereby the base surface (2) for storing films and cold cuts from above is freely accessible. At least one lever arm (5) is arranged in or below the base surface (2) and can be pivoted about an axis of rotation (6) which is arranged parallel to the axes of rotation of two opposing strips (7) approximately in the middle of the base surface (2) is, after reaching the Betätigungsendstellung a on the base surface (2) located film is turned over on itself, whereby the now superimposed film sections by the strips (3,7) are welded to the remaining free edges.
    公开号:AT519234A4
    申请号:T51179/2016
    申请日:2016-12-23
    公开日:2018-05-15
    发明作者:Fritz Kuchler Dkfm
    申请人:Fritz Kuchler Dkfm；
    IPC主号:
    专利说明:

    The invention relates to a welding device for welding two superimposed films or film sections with a particular arranged as a tray for a slicing machine base surface and the base surface on the sides bordering pliers foldable strips with heating elements, which during welding the edges of the films or film sections between the respective Pinch strips and the base surface and welded together by the respective heating element, and wherein the strips are folded up in the starting position, whereby the base surface for storing films and cold cuts from above is freely accessible.
    Such a welding device is disclosed in AT 500725. The particular advantage of this type of welding device is that it can be integrated in a fully automatic slicing and packaging system for food, such as sausage or cheese products. The welding device forms a central element. On the base surface in such a system alternately foils are deposited by a film transfer device and slices of sausage or cheese from the sides of the cutting machine. The base surface can also simultaneously form the weighing pan of an integrated balance, whereby the weight of the cut product is determined. After a predetermined target weight is reached, the cut-to-cut machine stops and a final cover sheet is placed on the welder. The welding device is activated in a row and the edge-side strips fold to the base surface and welded by the heating elements, the film edges.
    In practice, it has been found that there is a need for different package sizes with very different amounts of cold cuts. So far, these requirements can be met only partially with the above-mentioned device. To the top, the size of the package is limited primarily by the film transfer device, which is equipped with film rolls of a certain width, for example, with a width of 21 cm. In order to realize different package sizes, different welding devices can be provided with different distances between the foldable strips. In practice, for example, there are welding devices which produce standard size packages of 21 x 21 cm. In order to switch to the production of large packs, the welding device must be exchanged, whereupon packs with a size of, for example, 21 × 26 cm can then be produced with the same film transfer device.
    When scaling down to smaller pack sizes, there is of course the option of placing less sliced meat between the lower and upper slides. However, this leads to a finished packaging with a high excess of foil edges, which is a hindrance on the one hand in handling the packaging and on the other hand is undesirable for marketing reasons. Too large a package leads to the customer to the impression of a Mogelpackung and also suggests a wasteful handling of packaging materials and resources.
    It is therefore an object of the present invention to provide a welding device, which makes it possible to produce smaller package sizes, without a permanent replacement of the welding equipment or other parts of the existing system is necessary, whereby the application possibilities and flexibility of such a fully automatic slicing and packaging plant is further increased.
    This object is achieved in that at least one lever arm is arranged in or below the base surface, which is about an axis of rotation, which is arranged parallel to the axes of rotation of two opposing strips approximately in the center of the base surface, beyond the plane of the base surface also swung , After reaching the Betätigungsendstellung located on the base surface film is turned over on itself, whereby the now superimposed film sections are welded by the strips on the remaining free edges. This makes it possible, in addition to the full-surface packaging sizes also produce half size packaging. In the process, therefore, when the target weight and the type of sausage are input at the input device of the slicing machine, the appropriate package size and the corresponding image are automatically selected by the system. In a small package, therefore, the cold cuts are placed in only one half of the bottom sheet located on the base surface. After the target weight is reached, the lever arm is actuated and the empty half of the lower foil is folded over the cold cuts. Subsequently, the two now superimposed film sections are welded together by means of the folding strips with the heating elements.
    According to a possible embodiment of the invention, it is provided that a plurality of lever arms are provided which are spaced apart normal to a rotational axis formed as a shaft, and that each lever arm is associated with a corresponding slot in the base surface through which the lever arms when actuated upwards are pivotable. This embodiment is preferred because it provides an easy-to-clean base surface on the welder while allowing for safe folding of the foil sections over the entire area.
    It is an advantageous feature of the present invention that the lever arms are designed substantially L-shaped, wherein they are attached to the shorter leg on the axis of rotation, and wherein the length of the shorter leg at least equal to the distance between the axis of rotation and top of the base surface and the shorter leg extends in the starting position on the side remote from the base surface side of the axis of rotation. This embodiment of the lever arm allows a particularly efficient folding of the film section and a complete 180 ° movement of the axis of rotation from the starting position with the lever arms below the base surface to the Betätigungsendstellung with the lever arms above the folded film section and the underlying sliced.
    Another feature of the invention is that the longer leg of the lever arms is at least partially angled or bent, so that the free ends of the longer legs are inclined in Betätigungsendstellung the base surface. This allows the free ends of the lever arms to press the edges of the folded film section towards the base surface, thereby compensating for the height of the cut and securely grasping the edges of the film sections by the hinged bars.
    It is also a feature of the present invention that the foldable strips disposed normal to the axis of rotation are each made in two parts, and that the two parts can each be actuated independently of one another or coupled to one another. This can be ensured with small pack sizes that only the necessary portion of the hinged strips is activated with the heating elements, whereas the portion of the strips, in which there are no more foil sections, remains in the rest position.
    Finally, it is a feature of the invention that the lever arm is formed as part of the base surface and thus can be pivoted up as part of the base surface. In this alternative embodiment, the base surface can be made without larger slots, since the lever arm forms a continuous flat surface as part of the base surface in the starting position, whereby the entire base surface is also particularly easy to clean.
    The invention will now be described in more detail with reference to the accompanying drawings, wherein
    Fig. 1 shows a sectional view of a schematically illustrated welding device according to the invention and
    Fig. 2 shows a plan view of the base surface of the welding device of Fig. 1.
    The welding device 1 shown very simplified in FIG. 1 has a housing 14 on which a base surface 2 is arranged. For clarity, only the invention relevant parts are shown, while, for example, other arranged in the housing 14 components, such as the control electronics and the drives for the individual movable
    Elements not shown. Furthermore, the base surface 2 can also be embodied at least partially as an element arranged separately from the housing 14 and form the weighing plate of a balance located below the welding device, which is likewise not shown in the figures.
    At the respective edge sides of the base surface are each hinged strips 3.7. In the figures, these strips are shown 3.7 in the initial position, in this position, the base surface 2 is freely accessible from above, so that films from a film transfer device and cold cuts of sausage or cheese from a slicing machine can be stored unhindered. The strips 3.7 also comprise heating elements 4, here in the form of a heating wire, which serve to weld foils or foil sections when the strips 3, 7 are folded against the base surface 2 after the foils and slices have been placed.
    As can be seen in Fig. 1, located below the base surface 2 in the housing 14 designed as a shaft axis of rotation 6, on which lever arms 5 are arranged. The lever arms are each formed substantially L-shaped, wherein the shorter leg 9 is connected at its free end to the axis of rotation. In the initial position, this leg 9 extends substantially down to the side facing away from the base surface 2 side of the rotation axis 6. The longer leg 10 of the lever arms is both in the starting position and in the final operating position approximately parallel to the base surface 2. The Betätigungsendstellung is shown in FIG. 1 indicated by the lever arm represented by dashed lines. At the free end 11 of the longer leg 10 of the respective lever arm 5 is a portion which is designed angled and is inclined in Betätigungsendstellung the base surface 2.
    As can be seen in Fig. 2, a plurality of slots 8 are provided in the base surface 2, through which the lever arms 5 can pass through upon actuation of the axis of rotation 6 upwards. In the production of a full-surface packaging, a lower film is first placed on the base surface 2, whereupon the cold cuts of sausage or cheese is stored. Optionally, further films can be stored as intermediate layers. At the end follows an upper film and the packaging is welded to the edge sides of the lower and upper film, and optionally the intermediate films, by folding over the strips 3, 7 and heating the heating elements 4. If now desired to unpack a smaller amount of cold cuts in a smaller package, so this is already when entering the target weight and the sausage or. Cheese variety recognized on the slicing machine and selected a corresponding deposit image, in which the cut open product on the lower film is deposited only in the area of the base surface 2 shown in Fig. 2 right without slots 8. After the goods are stored, the rotation axis 6 is rotated by about 180 ° of the system, whereby the lever arms 5 through the slots 8 come up and the free film section of the lower film on the second half of the lower film with the goods thereon folding. In Betätigungsendstellung the film sections are completely folded over each other and the lever arms 5 hold them in this position. The strips 3.7 fold over and weld the free edges of the film sections together. It is advantageous if the normal to the axis of rotation 6 of the lever arms 5 arranged welding strips 3 are designed to be split. As a result, only one part 13 of the strips 3 can be folded over when producing a small package with half the size, while both parts 12, 13 of the strips 3 are folded together when producing a full-surface package.
    As can be clearly seen in Fig. 1, the length of the shorter leg 9 of the lever arms 5 is to be chosen so that it corresponds at least to the distance between the axis of rotation 6 and the top of the base surface 2, so that a safe folding over the film sections and a full 180 ° Rotation of the axis of rotation 6 is possible. In order to compensate for a corresponding height of the goods located on the base surface 2, the shorter leg 9 of the lever arms 5 can also be made slightly longer. It is then particularly advantageous that the sections are inclined at the free ends 11 of the longer legs 10 of the lever arms 5 in Betätigungsendstellung the base surface 2, so that the free edge portions of the upper film portion when folding the strips 3.7 can be detected safely. As an alternative to an inclined section at the free ends 11, the entire longer leg 10 can also be made concave towards the base surface.
    The versatility and flexibility of a fully automatic slicing and packaging system for food is significantly increased by means of the welding device 1 according to the invention, since now even very small pack sizes can be realized without modification of the system, the user continues only on the input of sausage or. Cheese type and target weight controls the plant and the appropriate packaging size can be automatically selected by the plant.
    权利要求:
    Claims (6)
    [1]
    Claims:
    1. Welding device (1) for welding two superimposed films or film sections with a particular tray as a tray for a slicing machine arranged base surface (2) and the base surface (2) on the sides surrounding pincers foldable strips (3,7) with heating elements (4), which clamp the edges of the films or foil sections between the respective strips (3, 7) and the base surface (2) during the welding process and weld them together by the respective heating element (4), and wherein the strips (3, 7) are in initial position folded upwards, whereby the base surface (2) for storing films and cold cuts freely accessible from above, characterized in that in or below the base surface (2) at least one lever arm (5) is arranged, which via an axis of rotation (6), which is arranged parallel to the axes of rotation of two opposing strips (7) approximately in the middle of the base surface (2), over the plane e of the base surface (2) is also pivotable, after reaching the Betätigungsendstellung a on the base surface (2) located film is folded over itself, whereby the now superimposed film sections by the strips (3,7) at the remaining free edges welded are.
    [2]
    2. Welding device (1) according to claim 1, characterized in that a plurality of lever arms (5) are provided which are spaced apart normal to a shaft formed as a rotation axis (6) are arranged, and that each lever arm (5) has a corresponding slot (8 ) is assigned in the base surface (2) through which the lever arms (5) are pivoted upwardly when actuated.
    [3]
    3. Welding device (1) according to claim 2, characterized in that the lever arms (5) are designed substantially L-shaped, wherein they are attached to the shorter leg (9) on the axis of rotation (6), and wherein the length of shorter leg (9) at least the distance between the rotation axis (6) and top of the base surface (2) corresponds and the shorter leg (9) in the starting position on the side remote from the base surface (2) side of the axis of rotation (6).
    [4]
    4. Welding device (1) according to claim 3, characterized in that the longer leg (10) of the lever arms (5) is at least partially angled or bent, so that the free ends (11) of the longer leg (10) in Betätigungsendstellung the Base surface (2) are inclined.
    [5]
    5. Welding device (1) according to one of claims 1 to 4, characterized in that the normal to the axis of rotation (6) arranged foldable strips (3) are each made in two parts, and that the two parts (12,13) each independently or coupled together are actuated.
    [6]
    6. welding device (1) according to claim 1 or 5, characterized in that the lever arm (5) is formed as part of the base surface (2) and thus as part of the base surface (2) is swung up.
    类似技术:
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    同族专利:
    公开号 | 公开日
    AT519234B1|2018-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4125997C1|1991-08-06|1992-10-15|Hans 4000 Duesseldorf De Lissner|Closing mechanism for open bags - has auxiliary folding implement with folding blade a one lever end, swivelable against support bearing|
    DE10153480A1|2000-11-09|2002-05-29|Fritz Kuchler|Cold meat slicing machine has rectangular slicing frame with central rail with welding wires to form two package halves, and knife to separate these|
    EP1571091A1|2004-03-05|2005-09-07|Fritz Kuchler|Welding device|
    DE202016103859U1|2015-07-16|2016-08-01|Fritz Kuchler|Arrangement of a film dispenser|EP3730279A1|2019-04-26|2020-10-28|S.A.M. Innovations GmbH & Co KG|Welding device and method for welding at least two overlapping sheets|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA51179/2016A|AT519234B1|2016-12-23|2016-12-23|welding equipment|ATA51179/2016A| AT519234B1|2016-12-23|2016-12-23|welding equipment|
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