DE2155175A1 - BREAD SLICING MACHINE - Google Patents

Description

Bread Slicer The invention relates to a bread slicer with ascending and descending knife frames and a device for performing in rows the loaves of bread through the knife frame.

It is known to cut loaves of bread into slices before packing. Either a ribbon knife or a reciprocating cutting knife is used for this. Cutting with a band cutting machine is well suited for loaves of bread with a ratio soft crust. hard crusts, however, distract the Flemish knives, so that no straight ones Cut is achieved. The much more compact reciprocating bread cutter has fairly short knives that don't bend easily because of the guides fttr the knives can be adapted more closely than with the tape cutter, which in principle resembles the well-known wood band saw. However, there is a risk that the knife get too hot if the guides fit too tightly. Disher was done whenever possible Always a flandschneider used because its working speed is extraordinary high iat. On the other hand, however, it is necessary to have a reciprocating bread cutter to be used as soon as hard crusts are to be cut. Many attempts have already been made been made to the performance of a reciprocating bread cutter to improve, e.g. by changing the geometric shape of the knife, the arrangement and training of the teeth as well as by increasing the cutting cycles per minute up to the limit of what is permissible. Furthermore, expensive edible oils are applied to the knives been. But none of these attempts were successful.

A reciprocating cutter consists of a number of parallel ones spaced knives in a reciprocating frame through which the loaves to be cut with their long side first and adjacent to each other by means of a suitable conveyor. The invention starts from the fact from that the poor performance of the known reciprocating tailors on the short knife stroke is to be returned, with the sections of the knife still within of the loaves passed through the knife frame remain, with the result that these Knife sections pile up pieces of bread that hinder the cutting work and the throughput limit the loaves considerably by the cutter.

The object of the invention is therefore to provide a bread cutter with back and forth to improve conventional cutting knives.

In order to achieve this object, the invention is based on a bread slicer with a reciprocating frame made up of a number of spaced apart Has knives and a device for guiding the loaves of bread through the row is provided by the frame and which is characterized in that the Frame makes a long enough stroke to prevent a portion of a Knife remains inside the loaf to be cut, A common one Bread cutter with a short knife stroke achieves an output of 25 to 30 loaves of bread per minute.

An increase in the inward and outward movement of the knives under less Shortening the length of the tube did not lead to any improvement.

However, if the Ilub is enlarged according to the invention, then the Output can be increased to 60 loaves of bread per minute.

It was found that in order to achieve a high consistent Average cutting speed of the knife without excessive acceleration, the has reached its maximum value in the dead center positions, it is also unsuitable reduce the number of strokes per minute.

Another advantage is that all knife sections step out of the drot loaves during a stay and treat them with edible oil can be.

With the conventional bread slicers, however, they are not The middle sections of the knife protruding from the loaves of bread are inaccessible to oil.

An embodiment of the invention is based on the drawings described in more detail. The figures show: FIG. 1 a section along the central plane and FIG. 2 shows a section along the line II-II in FIG. 1.

As can be seen from the drawing, the rotlaibe 10 are on a horizontal plate II with one long side in front and adjacent to one another by means of lateral conveyor belts 12 moved by a cutting device, while a floor conveyor belt 13 puts the loaves on the plate ii.

The cutting device consists of two up and down Knife frame 14, 14A with vertical knives 15, 15A that are two bread slices apart are arranged. The frames are arranged one behind the other, with the knives of the one frame is in the middle of the gaps between the knives of the other frame are located. The frames have an extension of 20 cm and are guided by means of guides 16, 16A moved up and down in opposite directions. These lift guides are driven by sliding blocks 17, i7A, the crank pins carried by crank disks 19 18, 18A are stored. The crankshafts 19 are in turn seated on a drive shaft 20. In the support plate 11 slots 21 are provided for the passage of the knife.

Two frames are therefore used to denote the going up and down Knives to neutralize the thrust exerted on the loaves of bread, thus causing a displacement the bread is prevented and-to the acceleration in the dead center positions of the frame to balance

Claims (2)

Patent claims 1. Bread slicer with rising and falling knife breathing with a number of spaced apart ones extending in the direction of movement of the frame Knives as well as with a device for row by row through the loaves of bread the knife frame, characterized in that the knife frame (i4, 14A) has a so great Ilub says that no section of a knife is during the cutting process (15, 15a) remains completely within the loaves of bread to be cut. 2. Machine according to claim i, characterized in that two opposite movable knife frames (14, 14A) are provided, each of which at a distance of carries two knives arranged as thick as a slice and took the knife (is) of one (14) in the middle of the gaps between the knives (15A) of the other frame (14A) are located and both frames perform the same b, and that the conveyor for passing the loaves of bread through the lengthways and close together Knife frame is formed.