DE4301787C1 - Cutter for meat mincers - Google Patents

Abstract

The invention relates to a cutter for meat mincers which are equipped with sets of cutters having one or more parts. In order to achieve mincing which meets quality requirements and therefore precise cutting off of the material which has entered the bores of the perforated disks and to ensure that the perforated disks are overlapped as little as possible, the cutter 3 according to the invention has one or more suspended cutters 1 in the space 6 between two cutter beams 4. The said cutters 1 are fastened to the outer ring 2 and their line of action passes through the central point of the cutter 3. <IMAGE>

Description

The invention relates to a knife for meat grinders, those with simple or multi-part cutting sets are equipped and that of the screw conveyor of the Processing material supplied to the respective meat grinder comminute, according to the preamble of claim 1.

The known cutting sets consist of a Perforated disc and a rotating knife, the so-called simple cutting set, or from several between fixed perforated discs running knives, the multi-part cutting set, the numerous cutter bars with push surfaces point.  

Many designs and designs of knives are well known and common and interact with the perforated disks a significant influence the overall cutting behavior of the respective meat wolfes and the quality of the workmanship.

A cutting set is known from DE-OS 32 15 950, whose knives are called cross knives, with and without Outer ring provided and used. The knife shown in this publication has six cutter bars, the outside by a ring and internally connected to the hub and is between the fixed perforated disks arranged.

DE-OS 24 51 389 describes a meat grinder, the Knives circulate within protective rings, their axial Length is a few hundredths of a millimeter larger than the axial length of the knife in between.

It is also described that the revolving knife exert an exclusive cutting effect and in no way Grind on the perforated discs or apply pressure to them issue.

This is achieved because over between the perforated discs Spacers in the form of rings or others Elements, a distance is set that just a few is a hundredth of a millimeter larger than the thickness of the knife. This measure is intended to sharpen the knives unnecessary and their lifespan can be increased.

Practical operation proves, however, that the described benefits do not occur, there are accumulations or baking of the material to be processed comes on the perforated discs, what the cutting effect and especially the cutting quality belittles.

So was in DD Patent Specification No. 266230 Knife with outer ring described, which all around and is interchangeably arranged in the outer ring  slides in appropriate guides and the knife and the outer ring have the same width dimensions and in the operating state with positive and non-positive the perforated disks should be connected.

The guides are designed as fixed or loose guides formed on the circumference of the knife and on the inside knives of the outer ring are provided. You can be designed as an annular groove and circumferential bead, wherein alternatively, the ring groove and the circumferential bead on the Knife wings or can be arranged on the outer ring. The loose guide consists of a ring groove circumferential snap ring.

The interchangeability is achieved by loosening the cutting edges from the knife blades or by removing a ver binding part, which is provided on the outer ring, guaranteed.

This construction variant is intended to achieve since both parts, outer ring and circumferential knife blades, reground together in the assembled state be that a continuous cutting and shredding processing of the goods to be processed takes place.

But even this version does not exactly ensure that taking into account the very differentiated practical Conditions, required quality parameters.

It is an object of the invention to provide a knife for meat to develop wolves, both in simple and in more partial cutting sets can be used, the Knife bar design and arrangement of the force initiation of the processed goods, if maxi painter free flow areas, draining, executed are.

The object is achieved according to the invention by the features highlighted in claim 1.  

Appropriate embodiment of the invention are the subject of subclaims.

The invention is in the drawing for example illustrated and in detail below described with reference to the drawing.

Show it

Fig. 1 shows the view of a four-bladed knife

Fig. 2 shows the view of a three-bladed knife

Fig. 3 shows a knife with several knife edges

Fig. 4 side view of a knife with knife edges arranged on one and both sides.

The basic principle of the invention is illustrated in the individual figures by the arrangement of hanging knives 1 , which are arranged on the outer ring 2 of each knife 3 and are directed towards the center of the knife.

In Fig. 1 a knife 3 with four knife bar 4 and provided on the cutter bar 4 is cutting knife 5 shown.

Between two cutter bars 4 , the hanging knife 1 are provided in the space 6 , which are attached to the outer ring 2 of the knife 3 .

The hanging knives 1 also have blades 7 which are formed directly on the knives 1 , or, as individual parts, can be fastened to the hanging knives 1 .

The arrangement and design of a knife 3 with three knife bars 4 is shown in FIG. 2. In this embodiment, too, the hanging knives 1 are provided between the individual knife bars 4 in the spaces 6 .

They can be arranged in the spaces 6 both symmetrically and asymmetrically.

The length of the hanging knives 1 can also be varied.

The number and length of the hanging knives 1 depend on the intended use of a knife 3 . This is essentially determined by the material to be processed, the design of the respective meat grinder, in particular by the design of the cutting set, and by the general working conditions.

Thus, the knives 3 can be designed with various types of hanging knives 1 , which vary according to the invention in terms of their number, length and design and can be combined with one another.

Fig. 3 shows an arrangement and combination of two hanging knives 1 provided in the space 6 , which are also made different in length.

The hanging knives 1 , but also the knife bars 4 , can also be designed so that they have knife blades 7 on one or both sides or in combination.

The design of the hanging knives 1 with knife blades 7 provided on one and both sides is shown in FIG. 4.

Taking into account the technological process at It can be said that over 80% of that of the working screw of a meat grinder Processing goods on the outside of the perforated disc is pressed, which makes this surface area the task to achieve a higher throughput.

It must also be noted that there must also be a certain free area on the perforated disks, which is not covered again by the arrangement of knives 3 with several or many knife bars 4 , because knife bars 4 extending from the center of the knife 3 hide a considerable one Part of the holes in the perforated disc and therefore have a higher degree of coverage.

The technological flight is positively influenced by the arrangement of the hanging knives 1 on the outer ring 2 of the respective knife 3 by continuously cutting off the material to be processed on the respective perforated disk.

Thus, the tool effect of the holes of the perforated disks and the knives 1 and 4 with their knife blades 7 and 5 is immediately met, since the material to be processed which has penetrated into the holes of the perforated disk is immediately removed by the subsequent knife blade 7 ; 5 is cut off. Only then can subsequent processing material penetrate again and be cut off.

With the execution of meat according to the invention wolf knives on the so-called plug formation counteracting or eliminating the perforated disks, since it has been shown in practical operation that the Working worm feed over the raw material, to be minced Meat, is no longer removed and thus the If not, they can form plugs on the perforated disks previously the effect of the holes in the perforated disc as a work stuff enters and the meat is cut off.

So it becomes clear in practical operation on a perforated disc with 2 mm holes that 10 to 12 holes are covered by such plugs, which prevents unhindered passage of the meat, the surface pressure on the meat is constantly reduced and so the depth of penetration of the meat into the Holes is reduced ver.

The arrangement of the hanging knives 1 , in variation of their number and knife length for the goods to be processed in each case, has a positive effect on the production quality, on the energy consumption and on the reduction in the crushing of raw materials.

The increase in the Efficiency of the respective perforated disc in relation the throughput, which is estimated at approx. 30% can.

Claims (3)

1. Knife for meat grinders with simple or multi-part cutting sets, the knife bar provided with knife blades and firmly connected to the outer ring and the hub of the knife, forming a space, characterized in that in this space ( 6 ) hanging knife ( 1 ), fixed to the outer ring ( 2 ) and aligned to the center of the knife. 2. Knife for meat grinders, according to claim 1, characterized in that the hanging knives ( 1 ) have one and / or both sides knife blades ( 7 ) which are both fixed and interchangeable. 3. Knife for meat grinders, according to claim 1 and 2, characterized in that between the knife bar ( 4 ) one or more hanging knives ( 1 ) of the same or different lengths are arranged.