DE102011011654A1 - Cutting machine for cutting tin bread in bread industry, has holding-and stacking device holding and stacking sectioned bread slices using side piece that is displaced at time of cutting slices, and adjusted under predetermined angle - Google Patents

Abstract

The machine has a supply path supplying bread loaves (2) and running under a certain angle in relation to a horizontal line, where the angle is predetermined by partition of stack planes (10) in a drum (9). A rotary knife (4) is supported by a pivotable rocker (6), which allows the knife to laterally engage at the loaves under right angle to the supply path. A holding-and stacking device holds and stacks sectioned bread slices (7) using a side piece (14) that is displaced at the time of cutting of the slices. The holding-and stacking device is adjusted under the predetermined angle.

Description

The invention relates to an industrial bread slicer, as known from the AT 363 412 has become known and how it is used vorwigend for box bread. Machines of this kind have come to a state after an uninterrupted runtime of almost thirty years, in which they must be adapted to modern demands on working speed and accuracy. These known machines consist of an exactly horizontally mounted feed path for the loaf of bread to be cut, on which the loaf of bread has been advanced by means of the loaf of bread from above and below holding and advancing endless chains carrying spikes piercing the loaf of bread, a cutter Stacking device for the cut slices and a pivoting device for the stacks of cut slices of bread. The pivoting device used for the stack of cut slices of bread consists of a rotatable drum, which collects the vertically standing supplied bread slices in bags, and is rotated after each inclusion of a certain number of slices in the bag in a position in which all slices of the in The bag collected stack lying horizontally and can be passed in this position for packaging on a transporting conveyor belt.

The invention avoids the disadvantages of the prior art and provides a simpler, faster working bread slicer for the bread industry with the characteristics that the feed path for the loaves is at a certain, acute angle to the horizontal, by the division of the stacking levels in the Drum is given that the rotating blade is supported by a pivoting rocker, which allows the knife attack the side of the loaf at a right angle to the feed path.

In this bread slicer, the feed path for the loaves to be cut is not horizontal, but oblique, the sliced loaf slips so with the aid of gravity in the cutting device, namely at an angle which is given by the division of the storage levels of the storage pockets in the swivel drum ,

In the prior art, the swivel drum had four stacking pockets for bread slice stacks, in the embodiment of the invention it will have five or six. This eliminates holding devices on the swivel drum for holding the last slice of bread of a stack, which was previously necessary in a pivoting of the bread slice stack from the vertical position of the bread slices in their horizontal position.

The advancement of the loaves of bread and the setting of the bread slices thickness is achieved by adjusting the feed rate of the lying on the loaf with spiked conveyor chains.

By placing the rotating knife on the loaf, the loaf of bread is slightly deformed, the lateral impact of the rotating knife causes the deformation to occur upwards and downwards, the loaf of bread is pressed more firmly against the conveyor chains, the cut is therefore smoother and cleaner.

To determine the weight of each individual stack of slices of bread, a conveyor belt with a belt weighing the weight on the conveyor belt is arranged immediately behind the pivotable drum-shaped device. This is followed by the leading to the packaging conveyor belt.

This immediately behind the transfer device of the swivel drum on a conveyor belt (for transporting the bread slices) arranged balance is control technology coupled with the control device for adjusting the transport speed of the attacking on the loaves conveyor chains. Thus, the adjustment of the strength of each cut in the future from the loaf of bread slices. This serves to obtain uniform slices of uniform weight as well as to achieve a uniform and accurate weight of the packaged slices of slices of bread. Thus, the scale with its control technology coupling optimizes the weight of each slice of bread and at the same time every bread slice stack.

Thus, this machine achieved in their simple structure uniform dimensions and uniform weight of the bread slices at a uniform stack height and low loss of overweight of the stack and the uniform weight of each stack.

The cutting device in this device is a rotating knife, which is mounted on a rocker in the form of a pivotable carrier, which is pivotable from one side of the feed path to the other side and back.

In order to be able to remove a finished slice of bread slices at the high speed of cutting and to be able to pivot the swivel drum, it is expedient that the control device inserts a short break in which the feed of the loaf and the Messerverschwenkung is interrupted and the rotation of the swivel drum is made, one to swing new empty receiving bag in the path of the cut slices of bread.

This cutting device is equipped with two separate drives, one for the pendulum movement of the rocker and a second for the rotation of the blade, so that at the moment of changing a stack in which the continuous cutting operation must be interrupted briefly, the rotation of the blade is not interrupted becomes.

It is expedient if, in addition to this cutting device for slicing bread slices, which also cuts the end knot, a second cutting device with the same or similar pivoting angle for cutting the Anfangssknustes subsequently sliced bread loaf is arranged. These knobs are to be discharged from the path of the slices of bread as waste, which can be done by the rotational movement of the rotating knife. - The discharge of the clipped knots can also be done so that by interrupting the swinging movement of the first knife-bearing rocker at the moment in which the first knife is in the way of slices, the second knife-carrying rocker is set in motion, the Anfangssknust the subsequent loaf of bread cuts and ejects, whereupon the rocker carrying the second knife is returned to its rest position and the rocker carrying the first knife is put back into work.

Furthermore, it is expedient that the storage pockets or levels in the drum-shaped stacking device, on which the cut slices are stored in an inclined position, wearing a synchronous with the pendulum movement of the rotary blade carrying the swing arm back to slice thickness retracting holder. This ensures that the cut slices of bread do not fall over, but form a sloping stack.

In this cutting machine, it is pretentious if all the parts moving for the work process are equipped with their own drive motor whose activity is synchronously controlled by a control system.

The manually adjustable to a certain operating frequency control system controls all parts of this Brotschneldevorrichtung synchronously, and interrupts the movement of the rotating blade bearing rocker for each cutting cycle when the desired number of slices of bread reaches a stack and its removal takes place.

About the connection of the balance with the control unit, the determined by the balance weight of each slice of bread in the control device is automatically used for adjusting the bread slice thickness of the subsequent slice of bread slices.

The number of slices of bread and the target weight of the bread slice stacks are separately adjustable on the control unit.

The essence of the invention is explained below with reference to an embodiment shown in the drawing. The drawing shows a schematic side view of the bread slicing machine according to the invention.

A feed track 1 for roast beef 2 brings with the help of on the loaf of bread above and below attacking endless chains 3 the loaf of bread 2 in front of the rotating knife 4 that with his engine 5 from a swingarm 6 is worn, which in its reciprocating motion, the cutting edge of the rotating knife laterally dive into the loaf and thereby and thereby a slice of bread 7 from the loaf of bread 2 cuts. After cutting the loaf of bread 2 becomes the rotating knife 4 withdrawn to the starting position, from there to start the cutting of a next slice of bread. The feed track 1 is inclined relative to the horizontal plane, in the illustrated embodiment by 30 °.

The from the loaf of bread 2 sliced bread slices 7 fall as a result of gravity attacking them and under pressure from the slices of bread cut off subsequently 7 in the collection of cut slices of bread 7 and their formation of stacks 8th of bread slices 7 Serving drum 9 , This is through levels 10 divided on which angle-shaped slide 11 in time with the slicing of bread slices 7 towards the center 12 the drum 9 are verschiebar. The angle-shaped slides 11 have a parallel to the levels in the drum 9 slidable leg 13 and one as a support for the bread stack 8th serving thighs 14 ,

Is a bread slice pile 8th formed with the intended number of slices of bread, the drum is rotated (in the illustrated embodiment by 60 °), wherein the slices of bread 7 of the pile 8th get into a horizontal position and the whole stack 8th vertically on the thigh serving as a breadstuff 14 stands.

The takeover of the vertically standing pile of bread 8th on a not shown packaging system leading also not shown conveyor belt by means of a height and in the transport direction movable transport system 15 , which consists of several mutually parallel V-belts, which are lowered under the legs 14 is driven and raised there to a height, in the bread slice pile 8th lying on her from the breadstuff 14 is lifted off. Then the level of the upper run of the V-belts is lowered to the level of the conveyor belt leading to the packaging installation.

For the Knustentfernung is still a second rotating knife 16 intended. This is also by a separate engine 17 powered and by a the the engine 17 carrying swingarm 18 pivotable. With simultaneous activity of both rotating knives 4 . 16 The final knot of the already sliced and the initial knot of the next loaf of bread 2 removed from the working street.

The balance required for the control device, not shown, z. B. in the transport device 15 be integrated or in a downstream conveyor belt.

The manually adjustable to a certain operating frequency control system controls all parts of this Brotschneldevorrichtung synchronously, and interrupts the movement of the rotating blade bearing rocker for each cutting cycle when the desired number of slices of bread reaches a stack and its removal takes place.

About the connection of the balance with the controller, the determined by the balance weight of each slice of bread in the control device selbstätig used for setting the bread slice thickness of the subsequent slice of bread slices.

The number of slices of bread and the target weight of the bread slice stacks are separately adjustable on the control unit.

LIST OF REFERENCE NUMBERS

1

feed

2

loaf

3

endose chain

4

rotating knife

5

drive motor

6

wing

7

bread slices

8th

Pile of bread slices

9

drum

10

level

11

angular slider

12

Drum center

13

leg

14

Thighs as a breadstuff

15

transport system

16

rotating knife

17

engine

18

wing

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• AT 363412 [0001]

Claims (15)

An industrial bread slicer comprising a feed path with an endless chain feed device for the loaf to be sliced, a cutter equipped with a rotating knife, a sliced slice stacker in a pivoting device for the slices of sliced slices from their position when sliced into the horizontal position for further transport to the packaging machine, wherein the pivoting device consists of a rotatable drum, which is divided by axially parallel stacking levels in receiving pockets, in which devices for receiving and stacking the sliced bread slices are installed, characterized in that the feed path for the loaves under a certain, predetermined by the division of the stacking levels in the drum angle with respect to the horizontal, that the rotating blade is supported by a pivotable rocker, the measuring he can attack laterally on the loaf loaf at a right angle to the feed, that the likewise adjustable at the predetermined, by the division of the stacking levels in the drum angle to the horizontal adjustable devices for receiving and stacking the sliced bread slices with a time of cutting the Slices of slidable support are fitted. Bread slicer according to claim 1, characterized in that the number of receiving pockets of sliced bread slices in the drum is five, six or seven. A bread slicer according to claim 1, characterized in that the cutting device is a rotary knife carried by a rocker which pivots the cutting edge of the knife from one side of the feed path to the other side and back. Bread slicer according to claim 1, characterized in that the endless chains for advancing the loaf of bread to be cut are provided with spikes engaging in them. Bread slicer according to claim 1, characterized in that the barbs of the endless chains penetrate into the top and bottom of the loaf of bread to be cut. Bread slicer according to claims 1-5, characterized, that a control device is provided, which determines the rhythm of the reciprocating motion of the rocker carrying the rotating blade, which specifies the feed rate of the loaf to be cut by specifying the speed of the endless spiked chains existing feed device for the loaf of bread to be cut and which triggers the rotation of the sliced bread slices receiving drum after reaching a predetermined number of slices of bread Bread slicer according to claim 6, characterized in that the control device is controlled by the target specification of the number of slices per stack and target specification of the weight of each stack and by the determined on a scale downstream of the drum actual weight of the individual stack of slices , Rotary cutting machine according to Claims 1 and 5, characterized in that the control device controlled by the scale of the slice of bread slice acts on the movement of the chains acting on the loaf of bread to be cut. Bread slicer according to Claims 1 and 5, characterized in that the control device controlled by the scale of the slice of bread slices acts on a device with which the axial position of the rotating knife is adjustable on its drive shaft. Bread slicer according to claims 1 and 5, characterized in that the pivoting movement of the rocker carrying the rotating blade and the movement of the bread slice support in the respective active device for picking up and stacking the sliced bread slices in the drum are synchronously controlled by the control device. Bread slicer according to claim 1, characterized, in that the devices for picking up and stacking the sliced bread slices in the drum are made with a bottom consisting of several rods and that at the transfer station a liftable and lowerable, consisting of several parallel bands conveyor is arranged, the bands engage in the spaces between the bars. Bread slicer according to claim 1, characterized in that, in addition to the cutting device for slicing the slices of bread, there is arranged a second cutting device with the same or similar swivel angle for cutting off the bread of the following bread. Bread slicer according to claim 12, characterized in that both cutting devices operate simultaneously. Bread slicer according to Claims 1 and 5, characterized in that the control device controlled by the scale of the slice of bread slices acts on a device with which the axial position of the rotating knife is adjustable on its drive shaft. Bread slicer according to claim 1, characterized in that all moving parts for the work are equipped with its own drive motor whose activities are controlled synchronously by the control system.

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