FI66520C - ANORDNING FOER STYCKNING AV SLAKTKREATUR - Google Patents

Description

I-, -J.l r_, „„ AD PUBLICATION r, c 0 n W (11) utlAccningsskript 66520 C MS) = y3nnstly 12 11 1934

Seddelat ^ ^ (51) KvJlu / bK.CL3 A 22 B 5/20

FINLAND — FINLAND <*> 8mkB

(M) tahiwHMM — ΑιίΐΜΐιι »» Κ 05.08.80 (FI) · (23) ANwpaM — GiM (| i «cadaf 05.08.80 (41) TalkithrikMai - MhrlcoffwtKg 11.02.81

Patent and refinery patent »nil nitm fmil | irnr-- \

Patent- odi rafietretyraleen '' Aw5kaw uk§i od »mUtaHtn pebBcerei 31.07.84 (32) (33) (31) tuolkew Befrt prtorlcec 10.08.79 Norway-Norway (NO) 792603 (71) Elkem a / s, Middelthuns gate 27 , Oslo 3, Norwegian-Norwegian (NO) (72) Leif Skaiaa, Drdbak, Norwegian-Norwegian (NO) (74) Oy Kolster Ab (54) Slaughter cutting machine - Anordning för styckning av slaktkreatur

The invention relates to a carcass cutting device in which the carcass is cut by means of a knife which is given an upward and downward movement by means of an impact hammer or the like.

When cutting a carcass, it is common for the carcass to be hung from its hind legs and cut along the spinal cord from top to bottom. An ax or saw can also be used in this work. Manual cutting with an ax is time consuming and heavy work and the use of a saw, including a chainsaw such as a circular or band saw, simplifies the work and requires less time, but it causes the formation of an unpleasant bone chip which further spreads to the meat.

It is also known to use an impact knife or ax, but they do not provide a clean cutting surface and do not split the skull. The carcass must also be open (split) past the pelvis in order for the device to be used.

The carcase is usually cut immediately after slaughter to allow inspection of the spine, nucleus and brain to detect any abscesses or the like and the cutting surface must be as clean and flat as possible to facilitate inspection. It is therefore desirable to control impurities, bone chips, nuclear materials and the like in adjacent parts. Therefore, it is desirable to provide a device that cuts the entire carcass, including the end, so that the line of incision runs along the core of the spine. As mentioned above, it is also desirable to obtain a smooth, clean cutting surface free of bone chips and other contaminants while eliminating the heavy work of manual cutting.

This is achieved by a device according to the invention, characterized in that the hammer is mounted at one end of the knife opposite the handles so that the carcass is between the hammer and the handles. With the device according to the invention, the carcass is split, i.e. cut in half along the spine with an impact knife guided in from the abdomen so that the knife is guided in two ways: A) by a counterpart on the dorsal side following the spine from the outside and from the abdomen by a guide on the other side of the spine, B) by a spike into the core canal.

When cutting of the carcass begins, method A is used down to the hip bone, followed by method B down to the shoulder. Method A is again used on the shoulder and end.

If there are deformations in the spine for which method B cannot be used, method A is used throughout the cutting operation.

In method A, the guide can be moved horizontally by means of an air cylinder, an air cylinder whose pressure is adjusted so that the cylinder acts like a spring. The counterpart may be at least one slide rail or one or more wheels that are spring-loaded and self-orientate on the spine according to the shape of the back. The spike is formed like a bifurcated fork and is positioned so that there is one branch on each side of the knife and thus the knife acts between these arms. The spike is inserted into the spinal cord by means of an air cylinder when the carcass is opened past the pelvis. There are no sharp bends in the spine from the pelvic bone to the shoulder and a spine can follow the spine. At the shoulders, there is a bend in the spine that prevents the spike and the spike is then pulled out, and the control according to method A is used again. The impact hammer acting on the knife is placed on the back of the carcass, giving a very short distance from the power source to the knife's impact point. The speed of the hammer and the cylinder are controlled by means of valves in the handles, while the cutting device itself is raised to the starting point by means of a suspension device. Using a stroke length of 100 mm and about 3500 strokes per minute, a cutting speed of about 200 to 225 pigs per hour is achieved.

An embodiment of the invention is shown schematically in the accompanying drawing, in which Fig. 1 shows a longitudinal section of the cutting device, Fig. 2 shows a section along the line A-A in Fig. 1, Fig. 3 shows a section along the line B-B in Fig. 1, Fig. 4 shows how the carcass is held in place by means of control devices and Fig. 5 shows a section taken along the line C-C in Fig. 1.

In the figures, the number 1 indicates the knife itself, the number 2 an oscillator, i.e. an impact hammer, with an impact part 2a which gives the knife its upward and downward movement. The number 3 is an abutment that follows the spine from the dorsal side and assists in guiding the knife along the spine, which is indicated by the number 4 in Figure 4. The bone marrow is 5 and the musculature is indicated by the number 6. The abutment 3 is supported by a knife frame 7 which also guides the knife against the oscillator 2 and the impact part 2a act. The control device, shown in the drawings as two wheels 8 and an axle 8a, runs on the inner side of the spine, as shown in Fig. 4. As mentioned, slide rails can also be used. The wheels are moved forwards and backwards by means of a pressure-regulated air cylinder 9 which acts like a spring. Number 10 is the cylinder arm. The bearing of the knife is indicated by a number. The speed of the hammer is controlled by a valve 12 in the handle 13, while the knife is controlled by a valve 14 in the handle 15. The control pressure is controlled by a regulator and a pressure gauge and part of the control thus has a flexible effect. Number 18 is a pneumatic cylinder that moves the spike 19 up and down. The dashed lines in Figure 5 indicate the lower position of the peak. The spike is controlled by a valve 20 in the handle 15.

As shown in Figure 4, the spike 19 guides the knife along the spine, while the knife is guided by other known devices.

4,66520

The knife can be supported on an elevator device, which can be of any known type, for example a pneumatic cylinder or an electric pulley, which can then be actuated by means of a pushbutton 16 in the frame. The chopping knife is hung on a hook positioned so that the knife is in balance.

The machine is small and convenient and can be used as a hand machine in small slaughterhouses.

In large slaughterhouses, it can be used as an accessory or it can be placed on a stand and fully automated, for example by means of photocells or valves.

The device according to the invention has a power source, as said, placed on the back of the carcass so that it comes as close to the point of impact, namely the spine, as possible when the user is standing on the abdomen of the carcass. This gives the machine a good run and reduces wear and vibration. The control devices can move so that they can be adjusted or possibly zoomed out with respect to the anatomy, hip bone and head of the carcass. The number of strokes per minute must be at least 600. When high speeds, 3500 strokes and more are used, many small carving knife movements are obtained and thus the cutting surface becomes substantially smooth and clean.

Claims (4)

5,66520 A butcher's cutting device, in which the carcass is cut up by means of a knife (1) which is given upward and downward movement by means of an is-hammer or the like (2), characterized in that the hammer is mounted at one end of the knife opposite the handles (13, 15). ) with the carcase between the hammer and the handles. Device according to claim 1, characterized by a knife guide device comprising a stop (3) and a knife guide, both of which are part of the knife frame (7), and two wheels (8) running on their own side of the spine (4) and resiliently supported horizontally by means of a pneumatic cylinder or the like (9). Device according to claim 1, characterized in that the knife guide device comprises a slide rail or the like. Device according to claim 1, 2 or 3, characterized by a bifurcated spike (19) which is guided into the spinal canal (5) and which thus helps to guide the knife with respect to the carcass.