DE10124244A1 - Slaughterhouse butchery hydraulic shear blade has extension to angled flange on second blade - Google Patents

Abstract

A hydraulic cutting shear (10) dismembers an animal cadaver and has two blades (11, 12) linked to a cylinder (20) with a piston (21) and a handle (30, 32) -operated hydraulic drive (2), hanging from supporting cables (50). The first blade (11) is linked to an extension (13) via a pivot (10). The extension (13) has a flange around the second cutting blade (12) extending one third of its length. The hydraulic drive hinged drive is applied at right angles to the flange. The first blade (11) has a mass balance for the supporting cable applied near to the centre of gravity allowing horizontal or vertical blade presentation. The hydraulic cylinder (20) is supported by a fork (14) in a cylinder (22) bearing which extends from the extension (13).

Description

Scissors for carcass dismantling with pivoting around a scissors joint scissor legs connected with a cylinder and bar a piston of a hydraulic system that can be controlled by hand Drive are correspondingly effectively articulated, and if necessary. with a suspension cable suspension and operating handles.

Known scissors of this type have the scissors joint also extended scissor thighs to which a joint square a hydraulic piston opening or closing acts. The elongated shape of the scissors with their drive can be used practically only for horizontal cuts; she usually only serves to separate the spine and therefore points accordingly short shaving legs of a maximum of 30 cm in length.

It is an object of the invention, the scissors mentioned to develop in such a way that they are easy to use receives a further applicability and thereby also for vertical Chest decomposition is suitable.

The solution is that the first scissor leg over the Scissor joint is also connected to an angular process that the second leg of the scissors to about 1/3 of its length engages, and that in each case on the angled process and at about 1/3 the length of the second scissor arm of the hydraulic drive perpendicular to this is articulated and a counterweight to the first scissor leg for a heavy  point-specific suspension cable suspension both horizontally and forms vertically upward scissors position.

Advantageous embodiments are in the subclaims specified.

The scissor legs are about 70-90 cm with good usability long, due to the short design due to the relocation of the Hydraulic drive on the side of a scissor leg one Cut across an entire rib section with or without shorter shear knife is possible with a single repositioning, whereby the operator can work standing up. It can be a horizontal incision, a spine separation and after a vertical rib separation when the scissors are pivoted through 90 ° cut. One at the previously known disassembly The usual saw cut through the ribs is no longer required. this has also the great advantage that there is no loss of saw cut on the ribs piece arises and this is not contaminated with sawdust becomes.

The safe scissor guide with slightly angled arms and without a change in the different scissor orientations by a handle oriented towards the shear legs at the rear of the hydraulic cylinder and one on the left sideways handle, the near or in the cylinder or Piston articulation is arranged, achieved.

The suspension close to the center of gravity on the suspension cable is advisable a right side on the movably driven shear leg in the Center of gravity arranged support bracket on which the wire rope can slide along when pivoting the scissors, so always attacks just above the center of gravity.  

The hydraulic cylinder is advantageously close to the piston outlet side swiveling in a fork in both fork arms stored. The fork arms are multiple on the angular extension screwed. The piston rod of the hydraulic drive only points a relatively short straight extension on which the Storage fork of the second scissor leg is from Bearing pin is penetrated.

The hydraulic cylinder is double-acting and therefore with one Closing and an opening line via reversing valves ver prevented. The reversing valves are operated pneumatically. The Pneumatic control takes place via a series-connected safety device Safety and reversing valves, which are activated with release handles Handles are to be operated.

Instead of manual guidance and operation, one can also be used Provide robot operation and a robot arm on the angular extension screw on, the screw connection of the hydraulic cylinder Storage fork can be used.

The scissor legs are useful in a known meadow inserted cutting blades, the back and on the Scissor tip are included. The scissor tips over the slightly concave shear edges protrude with Deflector bevels so that the legs at the end of a Closing process are smoothly performed and the Shear edges do not overlap and damage suffer.

Advantageous configurations are shown in FIGS. 1 to 4:

Fig. 1 shows a side view of the scissors with cut drive;

Fig. 2 shows an enlarged detail of Fig. 1;

Fig. 3 shows an embodiment of a robot arm;

FIG. 4 shows an end view of FIG. 3.

Fig. 1 and 2 show a pair of scissors 1, the two scissor arms (11, 12) are pivotally connected with a scissors linkage (10). One of the scissor arms ( 11 ) is partially connected to the other scissor arm ( 12 ) with an angular extension ( 13 ). Is at the angle extension (13) with a bearing fork (14) is a hydraulic cylinder (20) of a hydraulic drive (2) close to the piston rod extension passage in a cylinder bearing (22) pivotally supported, so that the drive (2) are each approximately perpendicular to the driven scissor ( 12 ) stands.

The piston with the piston rod ( 21 ) has a relatively short piston rod extension ( 24 ) which ends in a piston rod bearing ( 23 ) which passes through the second scissor arm ( 12 ) at about 1/3 of its length. In this way, the drive force acts very directly on the scissor arm driven by the piston and this and the scissor joint ( 10 ) are only moderately loaded.

The hydraulic drive ( 2 ) and the angular extension ( 13 ) represent a counterweight to the first scissor arm ( 11 ) with regard to a suspension on a support cable ( 50 ) close to the center of gravity. A support bracket ( 51 ) of approximately 15 cm bracket width on the side above the driven one is advantageous Scissor legs ( 12 ) are arranged near the articulation ( 23 ) of the piston rod into which the support cable ( 50 ) is suspended with an end eye ( 52 ).

At the free end of the hydraulic cylinder ( 20 ), a first handle ( 30 ) is attached in a direction approximately parallel to the cylinder ( 20 ) on a side extension ( 36 ) oriented towards the tip of the scissors, which can be gripped with the right hand, which also holds the trigger handle ( 31 ) of the pneumatic scissors control. A second handle for the left hand is located behind the image plane at the other end of the cylinder on the side of the scissors ( 1 ). A safety release handle is also installed there.

The scissor legs ( 11 , 12 ) are equipped with replaceable shear blades ( 15 , 16 ), which are enclosed in particular on the back and in the tip area. The leg tips ( 17 , 18 ) each protrude a few centimeters beyond the shear edges and are provided with mutually directed deflector bevels ( 19 ). The scissor legs ( 11 , 12 ) and the shear blades ( 15 , 16 ) are each slightly concave towards the scissor opening so that the material to be cut does not squeeze out when the scissors close.

On the hydraulic cylinder ( 20 ) there is a closing line ( 34 ) and an opening line ( 36 ) in the rear or front area, as also shown in FIG. 3. At the approach ( 36 ) you can see the compressed air connections of the pneumatic valve ( 33 ). From there, the compressed air line coming from the other handle is guided in a known manner to open and close control on a hydraulic control block, which is not shown.

Fig. 3 shows the connection of a robot arm ( 4 ), which on the one hand is attached to the screw of the bearing fork ( 14 ) of the cylinder bearing ( 22 ) and on the other hand leads to a robot flange ( 40 ). A hydraulic control block ( 41 ) with the supply and discharge lines and the control lines ( 34 , 35 ) is located on the robot arm ( 4 ).

Fig. 4 shows an end view of the scissors ( 1 ) seen approximately in the direction of extension of the hydraulic cylinder ( 20 ). With the bearing fork ( 14 ) it is mounted with the cylinder bearing ( 22 ) on the angular extension ( 13 ). The piston rod bearing ( 23 ) engages around the movably connected scissor arm ( 12 ), which is connected to the other scissor arm ( 11 ) in the scissor joint ( 10 ).

The robot flange ( 40 ) belongs to the embodiment in FIG. 3 and the handle ( 32 ) shown here in dash-dotted lines upward to the left hand of the actuator in the embodiment in FIG. 2, where it is invisible at the bottom of the picture. For a horizontal cut, the scissors are positioned transversely, as shown, and the handle ( 32 ) is oriented downwards and the support bracket, not shown here, is oriented upwards.

LIST OF REFERENCE NUMBERS

1

scissors

2

hydraulic drive

4

robot arm

10

scissor joint

11

first leg

12

second leg

13

Angular process too

11

14

bearing fork

15

Foil to

11

16

Foil to

12

17

Thigh tips too

11

18

Thigh tips too

12

19

Abweisschrägen

20

cylinder

21

Piston with piston rod

22

cylinder bearings

23

Piston rod bearing

24

Piston rod extension

30

first handle

31

release handle

32

side handle

33

pneumatic valve

34

Hydraulic closing line

35

Hydraulic opening line

36

approach

40

robot flange

41

control block

50

supporting cable

51

support bracket

52

Supporting-connecting eyelet

Claims (12)

1. Scissors for carcass cutting with scissor legs ( 11 , 12 ) pivotably connected to a scissors joint ( 10 ) which are connected to a cylinder ( 20 ) and a piston ( 21 ) of a particularly manually controllable hydraulic drive ( 2 ) in a correspondingly effective articulated manner, and if necessary. with a suspension cable suspension ( 50 ) and operating handles ( 30 , 32 ), characterized in that the first scissor arm ( 11 ) via the scissor joint ( 10 ) is also connected to an angular extension ( 13 ) which the second scissor arm ( 12 ) grips about 1/3 of its length, and that each on the angular extension ( 13 ) and at about 1/3 the length of the second scissor arm ( 12 ) of the hydraulic drive ( 2 ) is articulated approximately perpendicular to this and a counterweight to forms first scissors legs ( 11 ) for a suspension cable suspension close to the center of gravity ( 50 ) both in the horizontally and vertically upward scissor position. 2. Scissors according to claim 1, characterized in that the hydraulic cylinder ( 20 ) is mounted in a bearing fork ( 14 ) in a cylinder bearing ( 22 ) which is attached to the angular extension ( 13 ), and that the piston rod ( 21 ) on one fork-shaped piston rod bearing ( 23 ) is mounted on the second scissor arm ( 12 ). 3. Scissors according to one of the preceding claims, characterized in that at the free end of the hydraulic cylinder ( 20 ) with a lateral extension ( 36 ) a first handle ( 30 ) is arranged approximately parallel to the hydraulic cylinder ( 20 ), on which a control handle ( 31 ) is arranged. 4. Scissors according to one of the preceding claims, characterized in that a second handle ( 32 ) with a control handle is attached laterally close to the center of gravity perpendicular to the scissor extension. 5. Scissors according to claim 3 and 4, characterized in that the control handles ( 31 ) act on pneumatic valves ( 33 ) which are connected to a hydraulic control block ( 41 ), each controlled a closing or opening line ( 34th , 35 ) with the hydraulic cylinder ( 20 ). 6. Scissors according to one of the preceding claims, characterized in that the support cable ( 50 ) with an eyelet ( 52 ) on a support bracket ( 51 ) is slidably mounted, which spans the center of gravity laterally of the scissors ( 1 ). 7. Scissors according to claim 6, characterized in that the support bracket ( 51 ) on the other hand is arranged opposite the side handle ( 32 ). 8. Scissors according to one of the preceding claims, characterized in that a robotic arm ( 4 ) is screwed onto the angular extension ( 13 ). 9. Scissors according to one of the preceding claims, characterized in that the scissor legs ( 11 , 12 ) are approximately 70-90 cm long. 10. Scissors according to one of the preceding claims, characterized in that in the scissor legs ( 11 , 12 ) shear blades ( 15 , 16 ) are inserted, which are enclosed by the legs tips ( 17 , 18 ). 11. Scissors according to claim 10, characterized in that the leg tips ( 17 , 18 ) protrude beyond the edges of the shear blade and bear directed deflector bevels ( 19 ). 12. Scissors according to one of the preceding claims, characterized in that the scissor legs ( 11 , 12 ) and the scissor blades ( 15 , 16 ) are concave towards each other.