DE102007056124A1 - Cutter knife for e.g. sausage meat, has outward curved blade and inward curved rear blade with grinds that lie on same side of corrugated blade, where size of corrugated blade is reduced by bevel running on side of corrugated blade - Google Patents

Abstract

The knife (1) has a partial circular plane mounting section (2) placed around an axis (X-X) for mounting the knife. A corrugated blade (6) has an outward curved blade (7) and an inward curved rear blade (12), where thickness of the blades reduces towards outward. The blades (7, 12) have grinds (8, 9) that lie on same side (11) of the corrugated blade. The size of the corrugated blade is reduced by a bevel (15), which runs on another side of the corrugated blade. A transition region continuously crosses both side surfaces of the corrugated blade.

Description

The The invention first relates to a cutter knife certain Kind and additionally on at least one of these Kuttermesser comprehensive knife head.

Cutter knives are already known in many designs. Are known z. B. cutter knife with a semicircular planar mounting portion, an outer edge and an inner undercut, see for example patent specification CH 673 236 A5 , However, there are also cutter knives with fully circular, part-circular or other attachment portion. Moreover, it is known in the practice of cutter knives to reduce the thickness of the blade towards the tip.

Cutter knives are used for crushing and blending meat, sausage meat or sausage or the like foods, hereinafter referred to as mass, in a device, a so-called cutter, and are previously known in particular in the meat processing industry in various forms and designs. Usually several cutter knives are mounted axially next to one another and / or in the same plane over the circumference on a drive shaft for forming a so-called cutter head, cf. patent specification DE 37 32 237 C1 the applicant. There, the cutter knives mainly have the task to crush the mass contained in the cutter to a certain desired level and to mix. This machining process should be as fast as possible, but energy-saving, and carried out thoroughly, but without overheating the mass too much. The cutter knives must withstand considerable shear and bending forces during the working of the mass. Because a break during operation not only leads to a further downtime. In addition to the renewal of the knife are often damage with great effort to fix, which has caused the broken cutter blade on the cutter itself. Finally, a break, because of the risk of splintering, also leads to the uselessness of the entire mass in the cutter.

at the said cutter heads, z. B. from three to put eight knives together, the individual can side by side arranged cutter knife take on different tasks: In particular can the axially outside cutter knives The mass also feed the inside cutter knives. The cutter knife entering the cutter facing mass serve as a conveyor, so to speak, the other cutter knife, however as so-called jaw blades. How many and which of these cutter knives in the head of the knife are, above all, dependent of consistency, d. H. Hardness and toughness, the respective mass to be processed. Therefore, the Cutter knife of a knife head also geometrically different be educated.

outgoing from the varied demands made on a cutter knife the generic type are provided and the have been touched on above, the invention is the endeavor to show a geometric shape, in particular offers an optimum of breaking strength and economy.

For this the invention proposes a training for the license plate of claim 1 before.

The Invention thus consists in a cutter knife with at least one part-circular plan attachment section to a Axis is rotatably storable, which is a crescent-shaped blade includes an outer arcuate cutting edge and an inner arcuate undercut has and whose thickness decreases radially outwards, and the following features: the edge of the cutting edge and the Undercut are on the same side of the blade; and the Reducing the thickness of the blade is done by a slope, which runs on the second side of the blade.

The Invention therefore proposes both the edge of the cutting edge as well as the undercut on the same side of the blade and at the same time the usual bevel of the blade to arrange on the other side.

In order to the invention contradicts the conventional one Arrangement that is common practice today. The new Shape reminds in a cross-section to a half Propeller blades with a very small angle of attack. It has proved in practical experiments that in use the new shape of the cutter's knife the mass, especially meat, in the cutter both better fed and better crushed. The mass is promoted more in the sense of rotation, At the same time the cutter knife is against the inlet direction of the Mass better stabilized. Between the first and the following Cutter blades of a knife head, the mass is better compressed and fed to an effective fine comminution. The single one Cutter knife can not bend so much mass expiring, and overload breaks are prevented. The Blade can be made thinner in the top and offers less resistance when rotating in the mass. this leads to turn to a reduction in the required drive forces and to a saving of energy, eg. B. in the form of electricity savings.

The The aforementioned advantages are further promoted by that the first side of the blade is at right angles to the axis extends and that the bevel on the second side of the Blade runs so that the adjacent to the cutting edge, front Thickness of the blade is equal to or greater than that in the undercut passing, rear thickness of the blade. Such a cutter knife is very effective as a so-called conveyor meter used.

A Variant of the invention provides that the first side of the blade extends at right angles to said axis and that the Slanted on the second side of the blade so goes that the front thickness adjoining the cutting edge the blade is smaller than the one in the undercut, rear thickness of the blade. Such a cutter knife becomes very effective used as a so-called snow blade.

If the slope at least almost radially or at least straight runs, is for the production of a simple surface grinder needed.

If the slope of the middle curve of the sickle shape follows must in the production of a correspondingly controlled grinding machine be used.

Especially in the processing of meatloaf and the like can to the outer end of the arc of the cutting itself connect an emulsifying edge with a blunt angle.

After all can the benefits of the invention in particular dimensions be exploited when a knife head, where two or more Cutter knives are arranged on a common drive shaft, at least one cutter knife as above-defined conveyor knife or accumulation blade is formed.

Especially It is advantageous if at least one cutter knife in the cutter head as a conveyor knife and at least one cutter knife as a jaw knife formed according to the aforementioned embodiment is.

Further particular advantages, features and details of the invention are for the expert also the following description of Embodiments of the invention can be removed. The invention is not bound to the shown attachment of the cutter knife, although it may also preferably be used to to arrange two knives in the same plane of a knife head.

1 shows a cutter knife in side view, about the scale 1: 2.

2 shows the cutter knife after 1 in the view from the right.

3 shows the cutter knife after 1 , rotated 180 degrees around the vertical axis.

4 shows the section IV-IV in 1 but to illustrate the invention with significantly increased thickness.

5 shows a section through another cutter knife, corresponding to the section VV in 1 which coincides with the section IV-IV.

The cutter knife 1 comprises a semicircular clamping section 2 with a central bore 3 about the rotation axis XX and two centering holes 4 for attachment to not shown centering bolts, as well as through holes 5 , From the clamping section 2 is a crescent-shaped knife blade 6 on whose outside a part-arc-shaped cutting edge 7 with a wide inner wate 8th and a narrow outer wate 9 , To the outer end of the cutting edge 7 closes with an obtuse angle α a relatively blunt emulsifying edge 10 at. On the same visible first page 11 the knife blade 6 is a relatively blunt, arcuate undercut 12 appropriate.

The cutter knife 1 extends in principle at right angles to the axis of rotation XX. The first page 11 the knife blade 6 is in the same level as the one in 1 visible side of the clamping section 2 , chuck 2 and the beginning of the knife blade 6 have the same thickness D, see. 2 , On the second page 13 , compare 3 , is off the line 14 the knife blade 6 with a bevel 15 provided, through which the thickness D to the free end of the knife blade 6 towards, more precisely: at the beginning of the emulsifying edge 10 , reduced to the thickness D1, compare 2 , The inclination of the bevel 15 runs either at least approximately radially to the axis XX, ie parallel to the in 1 drawn diameter line DD, or follows at least about the middle curve 16 the sickle shape, the in 3 as imaginary midline dot-dashed and in 1 double dash-dotted line is drawn.

In 1 is at S a section through the knife blade 6 drawn. If the inclination of the bevel 15 the middle curve 16 follows, then the two sides run 11 and 13 between the cutting edge 7 and the undercut 12 , across the slope of the bevel 15 seen, preferably in parallel.

4 shows the section IV-IV in 1 but in a particular embodiment, the bevel 15 ' , For this purpose, only to illustrate the invention instead of the scale D to scale compare 2 , a significantly increased thickness D 'located. The bevel 15 ' is here so to the side 11 inclined to give a front thickness Dv greater than the rear thickness Dh of the knife blade 6 , The terms "front" and "rear" here refer to the direction of rotation or the cross section of the knife blade 6 , This form is used in a so-called flow meter, in which, however, the ratio Dv = Dh can apply.

5 shows a section through another cutter knife, corresponding to the section IV-IV in 1 , The bevel 15 '' is here so to the side 11 inclined to give a front thickness Dv 'which is smaller than the rear thickness Dh' of the knife blade 6 , This form is used in a so-called collision knife.

The The aforementioned flow meter and jaw blades can in a known manner to a cutter head comprising several cutter knives be summarized. In such a knife head can Cutter blades both axially in the same plane and in axial be arranged at different levels.

especially the 4 and 5 make it clear that with the help of bevels 15 . 15 ' and 15 '' the cutter knife 1 a shape that resembles or at least resembles a propeller. By varying the angle of attack of this quasi propeller shape, the properties of the cutter knife 1 be further optimized in the context of the invention, in particular to adapt to the properties of different masses to be processed. Accordingly, different cutter knives or entire cutterheads for the processing of very specific masses can either be already prepared or specially made.

1

Meatmincer

2

chuck

3

drilling

4

centering

5

Through Hole

6

knife blade

7

cutting edge

8th

wate

9

wate

10

Emulgierkante

11

first page

12

undercut

13

second page

14

line

15

bevel

15 '

bevel

15 ''

bevel

16

middle Curve

D

thickness

D '

thickness

D1

reduced thickness

ie

rear thickness

ie '

rear thickness

dv

front thickness

dv '

front thickness

S

cut

D D

Diameter line

X X

axis of rotation

α

angle

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - CH 673236 A5 [0002]
• - DE 3732237 C1 [0003]

Claims (8)

Cutter knife ( 1 ), which is provided with an at least partially circular, planar attachment section ( 2 ) is rotatably storable about an axis (XX) and that a sickle-shaped blade ( 6 ) comprising an outer arcuate cutting edge ( 7 ) and an inner, arcuate undercut ( 12 ) and whose thickness (D) decreases radially outward, characterized by the following features: a) the wate ( 8th . 9 ) of the cutting edge ( 7 ) and the undercut ( 12 ) are on the same first page ( 11 ) of the blade ( 6 ); b) the reduction of the thickness (D) of the blade ( 6 ) is carried out by a slope ( 15 ), on the second page ( 13 ) of the blade ( 6 ) runs. Cutter knife ( 1 ) according to claim 1, characterized in that the first page ( 11 ) of the blade ( 6 ) extends at right angles to the axis (XX) and that the slope ( 15 ) on the second page ( 13 ) of the blade ( 6 ) so that the to the cutting edge ( 7 ) adjoining, front thickness (Dv) of the blade ( 6 ) is equal to or greater than that in the undercut ( 12 ) passing, rear thickness (Dh) of the blade ( 6 ). Cutter knife ( 1 ) according to claim 1, characterized in that the first page ( 11 ) of the blade ( 6 ) extends at right angles to the axis (XX) and that the slope ( 15 ) on the second page ( 13 ) of the blade ( 6 ) so that the to the cutting edge ( 7 ) adjoining, front thickness (Dv ') of the blade ( 6 ) is smaller than the one in the undercut ( 12 ) passing, rear thickness (Dh ') of the blade ( 6 ). Cutter knife ( 1 ) according to one of claims 1 to 3, characterized in that the slope ( 15 ) extends at least almost radially. Cutter knife ( 1 ) according to one of claims 1 to 3, characterized in that the slope ( 15 ) of the middle curve ( 16 ) follows the sickle shape. Cutter knife ( 1 ) according to one of claims 1 to 5, characterized in that at the outer end of the arc of the cutting edge ( 7 ) with an obtuse angle (α) an emulsifying edge ( 10 ). Knife head, in which two or more cutter knives ( 1 ) are arranged on a common drive shaft, characterized in that at least one cutter knife ( 1 ) is designed according to one of claims 1 to 6. Cutter head according to claim 7, characterized in that at least one cutter knife each ( 1 ) is arranged according to claim 2 and claim 3.