DE6902506U - ROUND KNIFE FOR DISC CUTTING MACHINES - Google Patents

Description

"Circular knives for disc cutting machines"

The innovation concerns a circular knife for disc cutting machines with a coaxially arranged gear, such as bread slicers.

In known disk cutting machines, the prefabricated gear _5, which meshes with a frame-mounted, drivable gear for driving the circular knife, riveted to circular knives.

Such a production is relatively time consuming and expensive.

The aim of the innovation is now for a circular knife of the type described above to simplify production and to reduce manufacturing costs. The solution to this problem is essentially characterized by that the circular knife is a disc made of injection-molded, pressed and / or cast material with a molded gear has, and the disc also on the "circumference at least one carrying pre-made cutting blade.

Buxch eliminates these measures, the "previously required, separate Serstellimg the gear and its time consuming attachment sä Randmessex · Zndeia are compared to "known Aus—

guide shapes cut the material costs because the circular knife now consists for the most part of inexpensive injection-molded, pressed and / or cast materials.

Furthermore, the features! Inflation ₅ that a plurality of successively arranged in the circumferential direction of the cutting blades are provided in the afore characterized subject to the disk, whereby preferably also the disk are made with molded gear made of plastic, and the cutting blades are made from steel.

As a result, the cutting blades are almost completely waste-free Steel band to be cut off.

In addition, for most of the circular knife, the Risk of corrosion in contrast to known embodiments, in which corrosion even when using rust-inhibiting Steels are never excluded, because the proportion of chromium, taking into account the hardness and cutting ability of the steel räjad "icke! uSu therefore also the Eostbeetbarkeit is limited.

Its advantageous and inventive embodiment of the above The object is characterized by the cutting blades drifting away from the disc and into corresponding recesses positively engaging fingers.

A preferred and inventive variant is characterized for this in that in the above-described object, the cutting blades inwardly open recesses with undercut Flanks, have and the fingers of the disc designed to conform thereto are, so that positive connections between the both in the circumferential direction and in the radial direction Disc and the cutting blades that have a high "*?

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ensure that the dog knife is safe.

Another advantageous and inventive embodiment of the subject matter described above is that the disc and the cutting blades change their position in the axial direction with respect to one another have locking devices, preferably such that the disc on the circumference at least between the fingers in Flanks arranged at an angle to each other ends and the flanks in grooves designed to conform to the latter in the disc engage facing sides of the cutting blades.

It has been found to be particularly advantageous if the cutting blades in the above-described subject are renewed according to the invention have the shape of circular ring segments.

Another advantageous and inventive feature of the above The object is characterized in that the

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Type of tongue and groove interlock positively so that also a change in the position of the cutting blades with respect to one another with certainty is excluded =

A preferred and inventive development of the above The object is characterized in that the prefabricated cutting blades are injection-molded onto the disc, with the cutting blades from the syringe ± n the injection mold inserted and thus form a file of the injection mold, from which a simple Spritzfoxm. results and additional .works for attaching the cutting blades to the disc omitted.

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In addition, "preferred and inventive features are identified of the above-described subject in that the in the recesses the fingers engaging the cutting blades strive radially, further tapering outwards and in a head end and the recesses in the cutting blades are designed to conform thereto.

Embodiments of the innovation are shown in the drawing and are described in more detail below. It shows

1 shows a circular knife of a household slicer in the front view,

Fig. 2 also in section Δ-Β of Fig.

FIG. 3 shows a variant in the same view as FIG. 2.

The circular diameter "is composed of six successively arranged cutting blades 1 of rosthemmenöein steel, which are injection-molded to a disc 2 made of plastic having saetes ice ireiieiici'feigenes gear the third tone of the disc 2 rib material own finger A- terminating in heads 5 and engage over their entire length in corresponding, frontally open Ausselsiamges 6 of the steel blades Λ .

Between the fingers 4- / 5, the disc 2 has grooves running in a longitudinal direction? To the. Sfeussstanden der SchnseiökliageH i list; Js-sreils a d & i? Close-edged cutting blades have a shaped spring · 9 "and the other cutting kisses a corresponding 3? nxc ΊΟ. Bas sharpening the

takes place between the injection molding

Scnneidküj'gen i, the latter being both glairusn and iron cut ...

Fig. 3 shows a reversal of a lay change in axial Direction between the cutting blades i and the disc 2 preventing, form-fitting 8 locks.

Claims (8)

Protection claims: Λ. .Round knife for disk cutting machines with a coaxially arranged gear wheel, characterized in that a disk (2) made of injection, press izad / or cast material has a molded gear wheel (3) and the disk (2) has at least one prefabricated cutting blade on the circumference (1) carries. 2. Round knife according to claim 1, characterized in that on the disc (2) several cutting blades (1) arranged one behind the other in the circumferential direction are provided. 3. Circular knife according to one or both of the preceding claims characterized by a disc (2) with molded gear (9) made of plastic and cutting blades (1) on steel. 4. Round knife according to one or more of the preceding claims, characterized by the cutting blade (1) strutting out from the disc (2) and into corresponding recesses positively engaging pingers (4). 5. Round knife according to one or more of the preceding claims, characterized in that the cutting blades (1) inwardly open recesses (6) with undercut Have flanks and the fingers (4) of the disc (2) conform are trained to do so. 6. Round knife according to one or more of the preceding claims, characterized in that the disc (2) and the Cutting blades (1) changes in position relative to one another in the axial direction have blocking devices. 7. Round knife according to one or more of the preceding claims, characterized in that the disc (2) ends on the circumference at least between the fingers (4-) in flanks which are arranged at an angle and which are arranged in a conformal manner to the latter formed grooves in the disc (2) facing Sides of the? Engage the cutting blades (1). 8. Round knife according to one or more of the preceding claims, characterized in that the cutting blades (1) have the shape of circular ring segments. 9 »Circular knife according to one or more of the preceding claims, characterized in that the cutting blades (1) in the circumferential direction or almost to the latter in the manner of a groove and spring interlock positively. 10 'circular knife according to one or more of the preceding claims, characterized in that the prefabricated Cutting blades (1) are molded onto the disc (2). 11 * Sund knife according to one or more of the preceding claims, characterized in that the fingers (4) engaging in the recesses (6) of the cutting blades (1) are radial strive, further tapering outwards and in one End head (5) and the recesses (6) in the cutting blades (1) are designed to conform thereto. ^ η _Λ * » λ #» Patent attorney α A ο ⁵ J ίι