DK2743046T3

DK2743046T3 - Serving device for bread slices

Info

Publication number: DK2743046T3
Application number: DK13185664.3T
Authority: DK
Original assignee: Georg Hartmann Maschb Gmbh
Priority date: 2012-12-17
Filing date: 2013-09-24
Publication date: 2016-01-11
Also published as: HUE026286T2; EP2743046B1; EP2743046A1; RS54407B1; CY1117042T1; SMT201500326B; DE202012104910U1; ES2553795T3; PL2743046T3; PT2743046E; SI2743046T1; HRP20151277T1

Description

The invention relates to a portioning device for producing portions, consisting of a plurality of slices of a bread stick, behind a knife, separating the slices of bread, of a bread cutting device, wherein the portioning device has a star wheel with a plurality of receiving arms which are arranged at an identical angular pitch about a rotation axis and each form, in their end portion remote from the rotation axis, a receiving pocket for receiving the cut slices of bread, the slices of bread being held in a receiving position in said receiving pocket byway of holding means, and after a predetermined number of slices of bread is reached, the star wheel is rotated through the angular pitch in the direction of a transfer device.

Portioning devices of this type are used for example in systems for producing portioned sliced bread from bread sticks. Usually, the cut and portioned slices of bread are subsequently transferred to a packaging machine for packaging and sealing in film and paper bags. At present, these portioning devices are configured in such a way that the drive design does not ensure a constant feedthrough speed through the cutting device and through the portioning device. Further, the configuration of the portioning device requires holding means and/or receiving needles, on which the bread splices are skewered, so as to prevent the cut slices of bread from falling over or tilting and jumping in the portioning device. However, this leads to extremely undesirable damage to the slices of bread as they pass through the portioning device. Further, in general an operator first has to separate out the unusable end pieces and end slices at the start and end of each bread stick.

Patent specification DE 27 30 843 C2 discloses a device for producing slice portions in which, behind the cutting device, a receiving device for receiving slices of a sliced bread portion is arranged downstream. The receiving device is formed in the manner of a carousel comprising a plurality of stations, and the carousel comprises receiving arms having receiving pockets for receiving the cut slices of bread of a portion. Disadvantageously, additional receiving needles are required on the receiving pockets as holding means for holding the slices, on which the slices of bread are skewered and therefore damaged.

Laid-open publication DE 196 26 508 A1 discloses a method for portioning cut slices of bread which are transported upright, in which, behind the cutting device, a stop is advanced synchronously with the bread advancement, and the cut slices of bread lean upright against the stop. When a predetermined number of slices of bread is reached, an entrainer conveys the portion of upright slices of bread from the cutting device to a driven transport belt. Disadvantageously, additional separating means are required on the transport belt for separating successive portions of cut bread, interrupting a continuous process sequence.

The object of the invention is therefore to improve a portioning device of the aforementioned type in such a way that damage to the slices of bread of a portion is prevented and continuous cutting and portioning of a bread stick is made possible.

This object is achieved by the features of claim 1. Embodiments of the invention are disclosed in the dependent claims. A transport belt supplies bread sticks to a bread cutting device which comprises for example a rotating circular blade having a drive. The substantially vertically extending cutting plane of the rotating blade is directly upstream from the head portion of the transport belt. Furthermore, pressure holders are arranged in the region of the transport belt, and are pressed resiliently against the upper face and lower face of the bread sticks. The bread stick moves past the rotating blade in the feedthrough direction, so as to cut slices from the bread stick in that the blade is introduced into the bread stick. Simultaneously, the bread stick is advanced continuously without interruption by means of the clocked transport belt.

The star wheel of the portioning device is located directly behind the blade, and comprises a plurality of receiving arms which are arranged at an identical angular pitch about the rotation axis of the star wheel. The four receiving arms each form, in their end portion remote from the rotation axis, a receiving pocket for receiving the cut slices of bread. The rotation axis of the star wheel extends transverse to the advancement direction of the transport belt. The slices of bread are held in a receiving position by holding means. Once a predetermined number of slices of bread is reached, for example a portion comprising 9 slices of bread, it also being possible top produce portions having a different number of slices, the start wheel is rotated through the angle present between two adjacent receiving arms in the direction of a transfer device.

The present object is achieved in that the portioning device according to the invention is expanded using special components, in such a way that the holding means are formed by the tines of a stationary chute, a separator and a counterholder, and also a holding-down means. These components serve to hold the slices of bread, which are transported upright, without damage, in particular the application of receiving needles, on which the slices of bread have to be skewered for holding, being omitted.

After being cut, the slices of bread are pressed against the separator and/or the counter-holder in the receiving position. In the process the slices of bread are guided at their underside on the tines of the chute and on the receiving arms, and at their top side by the holding-down means. The holding-down means comprises a vertically guided slider which is arranged above the receiving pocket in the receiving position. The holding-down means is pressed resiliently against the upper face of the slices of bread, in such a way that all of the slices of bread supplied upright in the receiving position are reliably held in the receiving pocket. In the receiving position, the chute is arranged parallel to the receiving pocket, in such a way that the slices of bread, which are supplied upright, are supported on the chute.

The receiving pocket located in the receiving position is assigned a separator or counter-holder, against which the cut slices of bread, which are transported upright, lean in such a way that the slices of bread are supported in the receiving pocket without damage. The distance from the bread cutting device increases stepwise with the advancement of the cut bread slices.

When the predetermined number of slices of bread of a portion is reached in the receiving pocket, the star wheel rotates through the angular pitch with respect to the transfer device, for example a packaging device. In the process, the slices of bread are held on the receiving arms and guided by a guide plate. The guide plate is formed in an arcuate manner in cross section and is arranged at a defined distance from the rotating receiving pockets above the star wheel. The portion slides along on the guide plate until the transfer to the transfer device, in such a way that the slices of bread are supported securely and without damage in the receiving pocket.

Particularly advantageously, to transport a finished portion of slices of bread to the transfer device, the next cut slices of bread for the next portion are simultaneously pushed into the next receiving pocket during the rotation of the portioning device.

The counter-holder consists of a horizontally guided slider, which is movable forwards in a stepwise manner with the cut slices of bread. In the receiving position, the slices of bread are initially pressed against the separator. As soon as a defined number of slices of bread are located in the receiving pocket, the counterholder is moved to the position of the separator and the separator is retracted into a position directly behind the bread cutting device.

The star wheel with the receiving pockets automatically moves away from the bread cutting device to cut the end pieces from the start and end of the bread sticks. The unusable end pieces which are cut off can therefore be thrown away into a waste container or automatically disposed of by way of a waste conveying device. After the end pieces and end slices are cut, the portioning device automatically moves the star wheel forwards back into the receiving position.

In a development of the invention, a sensor device or an electronic scanner of the cutting device detects the presence of the end pieces or end slices and controls the portioning device accordingly.

In the following, the invention is described by way of example by way of a preferred embodiment with reference to the drawings. Fig. 1 to 8 schematically show the individual phases of a method sequence using the portioning device according to the invention.

Fig. 1 shows the cycle start, Fig. 2 to 6 show the cycle progression, and Fig. 7 shows the cycle end for the portioning of cut slices 18 of bread, which are transported upright, using the portioning device 1.

In Fig. 1, the counter-holder 12 is retracted B into an idle position, the holding-down means 13 is moved downwards A almost to the level of the bread stick, and the separator 14 is moved upwards C directly behind the blade 3 of the cutting device 2 in the advancement direction E of the transport belt 5.

Fig. 2 shows how, after three cut slices 18 of bread, the counter-holder 12 is moved forwards B directly behind the separator 14 in the advancement direction E of the transport belt 5. As a result, the counter-holder 12 can now take over the task of supporting the cut slices 18 of bread from the separator 14.

Subsequently, the separator 14 is moved downwards C, as shown in Fig. 3, and moved horizontally C directly behind the blade 3 of the cutting device 2, remaining in the lower position as shown in Fig. 4. In the meantime, further slices 18 of bread of the bread stick 16 are cut and held in the receiving pocket 10, which is located in the receiving position G.

Fig. 5 shows the rotation F to the left when nine slices 18 of bread are reached in the portion 19 in the receiving pocket 10. In the process, the holding-down means 13 is moved upwards A, so as to clear the path for the rotation F of the star wheel 7. During this time, the portion 19 is supported both against the counter-holder 12 and against the guide plate 11. Simultaneously, the separator 14 is moved upwards C directly behind the blade 3 of the cutting device 2 in the advancement direction E of the transport belt 5, in such a way that the next cut slices 18 of bread of the next portion 19 can be supported on the separator 14.

When the path for the counter-holder 12 and holding-down means 13 is cleared, the counter-holder moves B directly behind the separator 14 counter to the advancement direction E of the transport belt B, and the holding-down means 13 moves downwards A, as is shown in Fig. 6.

Fig. 7 shows how the portion 19 is provided in the upper receiving pocket 10 of the star wheel 7 for transfer to a transfer device 20, and simultaneously the cut slices 18 of bread of the next portion 19 are held by the receiving pocket 10 located in the receiving position G.

In the process, the star wheel 7 dips into the transfer device 1. The star wheel 7 comprises three tines, on which the slices 18 of bread of the portion 19 are located and between which the transfer device 20 is positioned. When the star wheel 7 continues to rotate, the portion 19 slides onto the transfer device 20 and is transported away.

Fig. 8 shows the cutting of the end pieces 17 from the start and end of the bread sticks 16. For this purpose, the portioning device 1 automatically moves D the star wheel 7, having the receiving pocket 10 located in the receiving position G, away from the cutting device. The unusable end pieces 17 which are cut off can therefore be thrown away and disposed of. After the end pieces 17 are cut, the portioning device 1 horizontally advances D the star wheel 7 again, in such a way that the receiving pocket 10, G, is located directly behind the head portion 6 of the transport belt 5 again.

Reference numerals 1 Portioning device 2 bread cutting device 3 Blade 4 Pressure holder 5 Transport belt 6 Head portion 7 Star wheel 8 Receiving arm 9 Rotation axis 10 Receiving pocket 11 Guide plate 12 Counter-holder 13 Holding-down means 14 Separator 15 Chute 16 Bread stick 17 End piece 18 Slice of bread 19 Portion 20 Transfer device A Movement of 13 B Movement of 12 C Movement of 14 D Movement of 7, 10, 15 E Advancement of 16, 18 F Rotation of 7 G Receiving position of 10

Claims

A portion device (1) for making portions (19) consisting of several bread slices (18) from a bread bar (16), behind a knife (3) separating the bread slices (18) and forming part of a bread cutting apparatus ( 2), wherein the portioning device (1) comprises a star wheel (17) having a plurality of receiving arms (8) disposed at equal angles about a axis of rotation (9), and their end portions (9) facing away from the axis of rotation (9) each form a recording pocket (10). ) for receiving the cut bread slices (18) and holding the bread slices (18) in a recording position (G) with holding means, and after obtaining a predetermined number of bread slices (18), the star wheel (7) is rotated angularly in the direction of a dispensing device (20), characterized in that the retaining means are formed by means of the teeth of a stationary slat (15), a separating device (14) and a counter-holder (12) and a retainer (13), and the bread slices (18) are pressed after cutting. the shooting position (G) against s the wedge device (14) and the retainer (12), respectively, thereby passing on the underside of the teeth of the slice (15) and the receiving arms (8) and on the upper side of the retainer (13), and that during the rotation of the star wheel (7), the bread slices (18) 20) is retained on the receiving arms (8) and guided by a guide plate (11).

Portion device (1) according to claim 1, characterized in that the down holder (13) has a vertically guided slider which is placed above the recording pocket (10) in the recording position (G).

Portion device (1) according to claim 1, characterized in that the guide plate (11), in cross-section, is arcuate and is spaced at a certain distance from the rotating receiving pocket (10).

Portion device (1) according to claim 1, characterized in that during the rotation of the portion device (1), the next cut discs (19) are pushed simultaneously into the next receiving pocket (10) on the star wheel (7).

Portion device (1) according to claim 1, characterized in that the counter holder (12) consists of a horizontally guided slider which is incrementally movable with the cut bread slices (18) so that its distance from the bread cutting apparatus (2) is increased.

Portion device (1) according to claim 1, characterized in that, in the take-up position (G), the bread slices (18) are first pressed against the separating device (14) and as soon as a certain number of bread slices (18) are in the pick-up pocket (10). ), the retainer (12) moves to the position of the separator (14) and the separator (14) withdraws.

Portion device (1) according to claim 1, characterized in that the star wheel (7) is formed into four receiving pockets (10).

Portion device (1) according to claim 1, characterized in that the star wheel (7) with the receiving pockets (10) automatically moves away from the bread cutting device (2) for cutting off non-usable end pieces (17) of the bread bar (16) and automatically on the new to the bread slicer (2).