DE2149156A1 - Method and device for wrapping pieces of meat - Google Patents

Description

concerning proceedings and Device for wrapping pieces of meat

The invention relates generally to methods and devices for wrapping or packaging pieces of meat and more particularly relates to novel and improved methods of enveloping quarters and devices with a device for supporting a piece of meat close to a holder for a rotatably mounted Supply roll of plastic film. According to the invention, it enables the rotatable support for the piece of meat or TierkSrperviertel, the packaged goods directly to be arranged along the edges of the plastic film and to bring it to the plant on the film, whereupon the packaged good can be rotated to pull film material from the supply roll and the piece of meat with a wrap to provide.

Until now, the bodies or body parts of freshly slaughtered animals have been wrapped in gauze, which is pinned to hold the fat in place. The wrapped carcass is immersed in a saline solution while still at body temperature and then cooled for up to 48 hours. According to more recent experience, it has proven to be sufficient to provide a period of 12 hours for the

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to bring about the necessary heat exchange and the desired solidification of the meat. When the chilled carcass has been removed from the cooling device, the used gauze is removed, then washed and the new one To be put to use. The carcass is then cut into four parts. So far it's made hygienic Reasons common to cover the quarters of the animal carcasses with blankets, which are primarily used to keep insects away; these Sacks or bags can be made of fluted kraft paper or polyethylene. When using paper bags there is the disadvantage that air can reach the meat unhindered, so that water evaporates from the meat, which leads to a shrinkage and weight loss of the carcasses, in addition, the exposed cut surfaces the carcasses or quarters are dark in color, so that an expensive subsequent cutting is necessary, before the meat is sold. A disadvantage of polyethylene bags is that polyethylene does not breathes. If the temperature of the packs produced in the manner described repeats, changes, accumulates evaporated and re-condensed moisture on the carcasses, and this causes the surface to become a gets slimy texture; Experts speak here

"from the fact that the flesh has" suffocated. "This phenomenon too leads to weight loss and the generation of waste, since the pieces of meat are trimmed again in this case as well Need to become.

The invention is based on the object of improving this and of a device for wrapping pieces of animal carcass to create which is of simple and robust construction and which can be manufactured at low cost leaves. According to the invention it has been found that certain types of polyvinyl chloride films can be used for the stated purpose are available, especially one under the statute

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protected name "Eesinite" in the form of a film that allows oxygen to pass through to a large extent, so that the cut surfaces of this material wrapped parts of the animal body retain their fresh appearance, with a moisture or vapor permeability is maintained, which is sufficiently low to prevent drainage or moisture loss.

The object of the invention is achieved in that an animal body part thereby completely in a gapless piece of a such film is wrapped that the carcass piece on a rotatable support along a supply roll of the Film material is arranged, and that the film is then brought to bear on the piece of meat, whereupon the piece of meat ck is rotated to cause the film material to be withdrawn from the supply roll, leaving the piece of meat is completely wrapped in the film material. This simple procedure ensures that it is covered by the film visible surface of the meat retains its light red color and the fat retains a very white color. If you are for it ensures that the carcass piece z. B. be hung on a raised rail with the help of a trolley can, which is provided with a support hook which comprises a rotatable part, and if you have a supply roll of the Wrapping material made of plastic arranged immediately next to the car so that the role around a vertical Axis can rotate, it is possible in a very simple manner, the entire part of the carcass or any part of it to be provided with a cover. Up until now it has been impossible to mix pieces of meat in the way you want with one To wrap a film made of polyvinyl chloride, because the properties of the film which are desirable for other reasons, i. H. his Softness, its slackness and its stickiness impede the desired handling of the meat pieces and the film,

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so that it is difficult to find a suitable device for wrapping to create pieces of meat. The invention suggests now provides a simple method and apparatus which enable the advantages of polyvinyl chloride films to be taken advantage of and to properly cover carcass pieces so that an improved Procedures for handling IT meat pieces are available stands.

The subject of the invention is thus a device suitable for wrapping pieces of animal carcass with an ^ direction for hanging up a carcass piece by means of a Support such that the carcass piece can be rotated and means for supporting a Supply roll of a plastic film in the immediate vicinity of the piece of animal carcass to be wrapped and in one of these Position that the free end of the film can be brought into abutment against the carcass piece, whereupon the carcass piece is rotated to remove more film material from the supply roll and the carcass piece at the same time to be provided with a cover.

The invention also relates to a construction a station for wrapping pieces of carcass with an fc bearing block for a supply roll of film material, the one Supported supply roll made of a plastic film so that its axis is perpendicular, also with a movable one Arm, which carries a cutting element and is mounted on the bearing block so that the cutting element along an arc can be moved around the axis of the supply roll, as well as with a support element that runs along a running rail or The like is movable and comprises a rotatable part which is used to hang a carcass piece so that his Longitudinal axis extends parallel to the axis of the supply roll so that the carcass piece is in the immediate vicinity of the supply roll

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roll can be arranged so that the free edge of the film material be brought to bear on a piece of animal body after which it is possible to completely encase the piece of carcass.

The invention also relates to an improved method for wrapping or wrapping the bodies of freshly slaughtered animals Animal, which includes measures to move an animal carcass on a rotatable component in the immediate vicinity of a supply roll hang up a plastic film in order to bring the free edge of the film into contact with the carcass piece, and then to rotate the carcass piece so that film material is withdrawn from the supply roll. Furthermore is subject the invention an improved wrapping method, which comprises measures to provide pieces of carcass with a casing made of a polyvinyl chloride material, which in comparison has better breathability and moisture retention properties compared to the materials commonly used up to now, and not that This material is characterized only by its slackness and stickiness, but also by its softness has a strong tendency to adhere to the piece of meat after contacting a piece of meat, and wherein the piece of meat to be wrapped is supported in the vicinity of the supply roll so that it can be rotated to complete to be wrapped with the film material after it has been brought into contact with the film material once.

The invention and advantageous details of the invention are described below with reference to schematic drawings explained in more detail using an exemplary embodiment.

• Fig. 1 shows in perspective part of the front of a device according to the invention for wrapping animal bodies pieces,

Fig. 2 is a perspective view of an animal

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quarter of the body that is completely covered with a covering has been provided with an improved packaging film made of polyvinyl chloride.

3 to 6 show in perspective how a piece of carcass according to the invention with a casing is provided.

Referring to FIG. 1, the device according to the invention for wrapping a whole animal body or part thereof comprises a generally support and Positionierein- f direction 10 and generally designated by 12 means for dispensing a plastic overwrap film. An animal body 14 or a part of an animal body is placed on a hook 16, a carrier device designated as a whole by 18. The support device 18 is rotatably mounted on an element 20 which is suspended from a bracket 22 which is provided with rollers 24 which run on a guide rail. The rotatable support device 18 comprises a disk-shaped handle 28 which an operator can grasp with his hands in order to rotate the handle together with the lower hook part 16 below the rotatable element 20.

. When an animal body 14 according to the invention

If the method is to be provided with a cover, it is moved along the guide rail 26 and brought into a position in which it is located immediately next to the device 12 for dispensing the wrapping material. In which In the embodiment described here, the dispensing device comprises a carrier 30 which is arranged at the wrapping station is and a block assembly designated as a whole by 32 carries, the fasteners 3 ^ standing for two arranged block parts 36 and 38 comprises. Furthermore are storage means provided to a supply roll 40 from a plastic

to support fabric film 42 rotatably about a vertical axis;

! these storage means comprise two

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stood separate. Bearing blocks 44 and 46, in which the supply roll 4-0 is rotatably mounted. In addition, these bear bearing blocks a generally U-shaped, designated as a whole with 48 Arm, which is on the upper bearing block 44 about an axis 50 ■ is rotatably mounted. The arm 48 carries a cutting element in it In the form of a hot wire 54, which via a cable 56 is an electrical Electricity can be supplied.

After the animal carcass to be wrapped is arranged directly next to the dispensing device 12 at the wrapping station has been, the free end of the wrapping material 42 is pressed against the carcass to bring it to the carcass associate. An operator then grasps the disc-shaped handle or plate 28 with his hands to encircle the carcass or to rotate the piece of meat, so that further film material is thereby withdrawn from the supply roll that the Animal carcass exerts a pulling force on the film; the carcass becomes progressively complete with the film material wrapped as shown in Figs. To When the piece of meat is completely enveloped, the plastic film 42 is severed; for this purpose the arm 48 6 pivoted in the direction of the arrow so that the hot wire 5 ^ - moves through the plane of the plastic film 42, to cut the film. A special feature of the invention is that it proposes a device which makes it possible to handle a polyvinyl chloride film 42 around an animal carcass or a piece of meat with a to encase improved material without any difficulties arising as they normally would would be expected when using a slack packaging material. As mentioned, there is a For this purpose, a particularly suitable material is available, namely that under the legally protected designation "Resinite" film sold by Borden Chemical Company. A

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such film is capable of reducing the costly shrinkage loss by 75% or more. The savings achieved in this way correspond in terms of value to a multiple of the costs of the film material and the wage costs incurred when using it. This film material has a high permeability to oxygen so that the cut surfaces of the wrapped pieces of meat keep their fresh appearance, and the permeability of the film material to moisture or steam is sufficiently low to prevent dehydration, which leads to weight loss. The exposed

^ the surfaces of the pieces of meat retain their bright red color. Colour, and the fat retains a very white appearance. In the case of carcasses or pieces of meat that have not been wrapped the exposed cut surfaces take on a dark color so the meat must be cut again before it can be sold. The improved wrapping material adheres well to meat even at low temperatures, it is not easily damaged, and during transportation there are no holes in the material, so that the meat is kept in a clean state and maintains its quality remain. Furthermore, there is no need to work with heat in this material in order to close the casing tightly, and since it is firmly attached to the flesh, it remains

P constantly in contact with the entire surface of the packaged goods. Furthermore, this packaging material proves to be particularly useful for use in cases where with low temperatures and high humidity are to be expected, and if the carcasses have been stored for a long period of time or should be frozen, because the plastic film does not become brittle at normal freezing temperatures. After all, because of the low cost of the movie file, it is economical to use the material only once at a time.

The dispensing device 12 enables a novel

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simple method to use to rear the footage around or lying around front quarters or other pieces of carcass while such pieces are on the hook 16 are hung. Here, the film material is from the The supply roll is pulled off and placed around the piece of meat, to which it is firmly attached. By rotating the piece of meat it is possible to make the footage generally helical around the piece of meat until the piece of meat is complete is enveloped. After the film has been cut with the help of the hot wire 5 ^, the free end of the separated piece of film set by inserting it to ensure a maximum shot of the packaged goods. Examples of one suitable for the purposes of the invention film packaging materials are disclosed in U.S. Patent Specification 3 479 3O8.

Claims;

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Claims (1)

ίΝ BO 8 MÜNOHE - 10 - SCHWEIGEHSTRASSE S TELITON (0811) ββ 20 Sl TELEI 9 84: 070 TKLBOBAHMK: PROTKOTPATENX ■ 1-39 920 PATENT CLAIMS l. \ A method for wrapping animal carcasses or pieces of meat using a supply roll of plastic film which is rotatably mounted near a support for the meat piece and from which film material can be pulled off, characterized in that the meat piece is arranged along the supply roll, that the free end of the plastic film is brought into abutment against the piece of meat, and that the piece of meat is then rotated to pull film material from the supply roll and wrap it around the piece of meat. 2. The method according to claim 1, characterized in that the part enveloping the piece of meat of the plastic film is separated from the supply roll, and that the end of the separated part around the ends of the Piece of meat is placed around the piece of meat with to provide a tight cover. 5. The method according to claim 1, characterized in that the supply roll around a vertical Axis is rotatably mounted, and that the piece of meat is arranged so that it is generally parallel to the axis of the Supply roll extends and assumes a position in which the free end of the plastic film can be brought to bear against the piece of meat. 4. The method according to any one of claims 1 to 4 ·, characterized marked that <© * "a plastic film is used which comprises a vinyl resin selected from the group comprising polyvinyl chloride, furthermore polyvinyl acetate, Mixtures of polyvinyl chloride and polyvinyl acetate, which contain a larger proportion of polyvinyl chloride 209815/1132 ORIGINAL INSPECTED - li - hold, as well as copolymers of vinyl chloride with a mixed monomer selected from the group consisting of vinyl acetate and C., "-Alcohol esters of alpha-unsaturated aliphatic acids having 5 to 5 carbon atoms per molecule, which contain a major proportion of vinyl chloride and an essentially non-volatile plasticizing component for the synthetic resin as well as a smaller proportion of the fogging preventive and anti-tacky substance, this substance being a combination of two materials, namely, first, a partial ester of a water-soluble polyhydric alcohol having 2 to 6 carbon atoms with a aliphatic monocarboxylic acid and secondly a polyalkoxylated derivative of a partial ester of a water-soluble one polyhydric alcohol having 2 to 6 carbon atoms with an aliphatic monocarboxylic acid in which the alkoxy groups in each case Contain 2 to 3 carbon atoms, the number of Alkoxy groups about 3 to 30 per molecule of the alkoxylated Partial ester, the proportion of plasticizing agent about 20 to about 60 parts by weight per 100 parts by weight of the polymeric vinyl material, and where the total amount the partial ester is at least 4 parts by weight when 40 or more parts by weight of the plasticizer be used. 5. Device for wrapping parts of animal bodies or Pieces of meat, in particular according to the method according to one of Claims 1 to 4, characterized in that that the device comprises a delivery device (12), that this delivery device comprises storage means (44, 46) in which a supply roll (40) of a plastic film (42) is rotatably mounted, so that the plastic film from the supply roll can be withdrawn while the supply roll rotates that means (10) is provided to to support a piece of meat (14) in the vicinity of the supply roll, so that the support device has a component (16) 209815/1132 i * 1 - 12 - which is rotatable so that the piece of meat can be rotated together with it, and that the piece of meat so is arranged that the free end of the plastic film can be brought to bear on the piece of meat, whereupon the piece of meat can be rotated around the plastic film from the supply roll and causing the piece of meat to be wrapped in the plastic film. 6. Apparatus according to claim 5 »characterized in that the support means in which a supply roll (40) of the plastic film (42) is rotatably mounted, an upper bearing (44) and a lower bearing (46) which are separated by a perpendicular distance. 7. Apparatus according to claim 5 or 6, characterized in that the support device for the piece of meat (14) comprises a support piece (22), which is movable along a guide machine (26). 8. Device, in particular according to one of the claims 5 to 7 »characterized in that the device comprises a support structure (32) on which one Supply roll (40) of a plastic film (42) is rotatably mounted in such a way that the free end of the plastic film extends in the lateral direction, furthermore cutting means (54) assigned to the support device for severing a selected length of the plastic film and means (10) for supporting one Piece of meat (14) with a hook part (16) to which a piece of meat can be attached and which is opposite a ' stationary! part of the support device is rotatable that the piece of meat is the length of the free end of the plastic film can be arranged so that the free end of the plastic film can be brought to bear on the piece of meat can, and that the piece of meat can be rotated to the 209815/1132 Remove the plastic film from the supply roll. 9 · Device according to claim 8, characterized in that g e k e η η, that the device comprises a guide rail (26), and that the stationary part of the support device comprises a support piece (22) which is provided with wheels and can be moved along the guide rail. 10. Apparatus according to claim 9 »characterized in that there is an elongated guide rail (26) extends to a point which is immediately adjacent to the supply roll (40) that the fixed part the support device comprises a support piece (22) which is provided with wheels running on the guide rail, and in that the support means (32) for the supply roll have cutting means (54 ·) for severing the plastic film assigned· 11. The device according to claim 10, characterized in that the cutting means comprise a rotatably mounted, U-shaped arm (48) which has a central handle portion which extends substantially parallel to the axis of the supply roll (40), and a cutting element ( 54) »which is supported by the arm, extends essentially parallel to the axis of the supply roll and, with the aid of the arm, can be moved transversely to the path of the plastic film
Polyvinyl el which is withdrawn from the supply roll in order to cut through the plastic film comprising loride. 209815/1132 original inspected