WO2015169850A1

WO2015169850A1 - Apparatus and method for the punctiform application of a liquid

Info

Publication number: WO2015169850A1
Application number: PCT/EP2015/059942
Authority: WO
Inventors: Norbert Drapela; Johannes Haas; Josef Haas; Stefan Jiraschek; Markus Breyer
Original assignee: Haas Food Equipment Gmbh
Priority date: 2014-05-07
Filing date: 2015-05-06
Publication date: 2015-11-12
Also published as: AT515760A1

Abstract

Apparatus and method for the punctiform application of a liquid (1) to a multiplicity of locations (2) on a baking mixture (3) during the process of producing a baked product, comprising a rotatable spray brush (4), having a main body (6) driven in a rotatable manner about an axis of rotation (5), and having bristles (7), which, in a basic position (8), project outwards from the main body (6) and, in particular, project outwards in the radial direction around the main body (6), also comprising a container (9), with a liquid (1) provided in the container (9), and further comprising a scraper body (10).

Description

Apparatus and method for punctiform application of a liquid

The invention relates to an apparatus and a method for punctiform application of a liquid to a plurality of locations on a baking mass during the manufacturing process for producing a baked product.

In the food industry, especially in the production of baked

Products, the technical problem is baked products in sections or punctiform with a liquid such as a paint to spray. In particular, there is a demand for products that should be provided at certain points with a point-like applied liquid. If necessary, these points should be distributed irregularly on the product and have different sizes, so that the spray pattern resulting from the application of the liquid gives the impression of a random pattern created. Preferably, the pattern resembles a tanning pattern, such as occurs during irregular roasting or baking.

The prior art, for example, refer to devices in which sprayed with paint spray guns on dough bands to produce a dot pattern. A disadvantage of paint spray guns is that the spray area can not be clearly delimited and defined. This leads to a strong contamination of the system

through the liquid. Furthermore, the spray pattern, so the pattern and in particular the random arrangement and the size of the bodies, is not optimal for spray guns.

The object of the invention is therefore to provide a device and a method which overcomes the disadvantages of the prior art. In particular, it is an object of the invention to provide an apparatus and a method which gives an optimal spray pattern or pattern of liquid distribution. Moreover, it is an object of the invention to provide an apparatus and a method which is efficient, in particular the liquid sprays targeted to the desired Sprühort, so that little or no liquid is wasted.

The object of the invention is particularly characterized by the features of

independent claims solved.

The invention particularly relates to a device for the punctiform application of a liquid to a plurality of locations on a baking mass during the

A manufacturing process for making a baked product comprising: a rotatable spray brush having a rotatably driven about an axis of rotation

Base body and with bristles which are in a basic position of the main body to the outside and in particular around the main body in the radial outward direction, a container with a liquid provided in the container and a stripper body, which is characterized in particular in that the spray brush is submerged in a submerged portion in the liquid, so that bristles are wetted by rotation of the spray brush successively with the liquid or are that the spray brush in a biasing section to the

Abstreifkörper is pressed so that liquid wetted bristles are brought by rotation of the spray brush successively on the stripping body from the basic position in an elastically biased biasing position or, and that a spray section is provided in the wetted with liquid, in advance of the stripping body biased bristles by rotation the spray brush are moved or are in a free space, so that the prestressed bristles are moved back one after another in the direction of its basic position or, whereby these bristles a

Accelerating experienced and provided for the bristles liquid in the spray section separates from the bristles and is sprayed to a Sprühort or is. Optionally, it is provided that the bristles extend from the main body to a brush radius, and that the smallest distance between the

The axis of rotation of the spray brush and the liquid and / or the surface of the liquid is less than the brush radius, so that the brush and in particular the free ends of the bristles in the immersion portion at least partially immersed in the liquid.

Optionally, it is provided that the bristles extend from the main body to a brush radius, and that the smallest distance between the

Rotary axis of the spray brush and the stripper body and / or the surface of the stripper body is less than the brush radius, so that the spray brush and in particular the free ends of the bristles in the biasing portion are at least partially biased against their direction of movement or become.

Optionally, it is provided that the liquid is a consumable liquid or a consumable dye.

If appropriate, it is provided that the spray brush is surrounded by a housing, that the housing has a spray opening, through which the liquid sprayed by the spray brush exits in the direction of the spray location.

Optionally, it is provided that the container is connected to the container so that liquid sprayed onto the housing wall is collected in the container.

Optionally, it is provided that at the Sprühort a conveying device for

Carriage a baked or unbaked baking mass is provided, wherein the liquid is sprayed on the baking mass or is.

Optionally, it is provided that at the Sprühort a conveying device for

Carriage a baked or unbaked baking mass is provided, wherein the liquid is sprayed on the baking mass or is, wherein the

Conveying device of the back ring of a ring baking machine or wherein the

Conveying device is the winding device of a ring baking machine. Optionally, the invention relates to a method for punctiform application of a liquid to a plurality of locations on a baking mass during the

A manufacturing process for producing a baked product, comprising the steps of: a rotatable spray brush having a body rotationally driven about a rotation axis and bristles radially outward of the body immersed in the immersion portion so that bristles are successively rotated by rotation of the spray brush at least partially wetted with the liquid; the spray brush is pressed in a biasing portion of a stripper body so that wetted bristles are brought by rotation of the brush successively on the stripping body from a basic position to an elastically biased biasing position; wetted with liquid, on

Pre-tensioned bristles are turned into one by turning the brush

Spraying section moves, where biased bristles successively move back toward the home position, so that these bristles experience an acceleration and the fluid provided on the bristles separates from the bristles and is sprayed to a Sprühort.

The axis of rotation of the spray brush and the liquid and / or the surface of the liquid is less than the brush radius, so that the brush and in particular the free ends of the bristles in a submerged portion at least partially in the liquid

plunge.

Rotary axis of the spray brush and the stripper body and / or the surface of the stripper body is less than the brush radius, so that the brush and in particular the free ends of the bristles are biased in a biasing portion at least partially against their direction of movement.

Optionally, it is provided that the liquid is a consumable liquid or a consumable dye. Optionally, it is provided that the spray brush is surrounded by a housing, and that the housing has a spray opening through which the of the

Spray brush sprayed liquid is discharged towards the spray location.

Optionally, it is provided that at the Sprühort a conveying device for

Carriage a baked or unbaked baking mass is provided, wherein the liquid is sprayed onto the baking mass.

Optionally, it is provided that at the Sprühort a conveying device for

Carriage a baked or unbaked baking mass is provided, wherein the liquid is sprayed onto the baking mass, wherein the conveying device is the baking ring of a ring baking machine or wherein the conveying device

Winding device of a ring baking machine is.

The device according to the invention particularly relates to a device in which a liquid, preferably a dye, is sprayed onto a baking compound during the manufacturing process. The baking mass can be present, for example, as an unbaked baking mass, for example as a dough strip. If necessary, the

Baking mass to be sprayed in the baked state.

Optionally, the liquid may be a liquid, consumable dye,

Flavoring agents, agents for altering surfaces or other substances.

An exemplary pattern includes locations that are separate from each other and that are independently spaced apart on the baking mass.

According to a further embodiment, the density of the locations may be increased, so that the locations partially adjoin one another or the sprayed-on liquid of individual locations extends into one another. Optionally, the spots have an irregular shape and liquid density or color density. Preferably, the points are distributed irregularly and have an irregular shape, so that there is a random spray pattern. Optionally, the locations are circular or oval. Optionally, the shape of the points corresponds to the shape that leaves the drops emitted by the device upon impact with the baking mass.

In all embodiments, these locations have, for example, a diameter of 0.1 to 4 mm. Preferably, these sites have a size of 1 to 3 mm in diameter.

Preference is given by the device according to the invention and / or by the

inventive method sprayed a dough sheet, which is transported on a baking ring or on a winding device. These endless dough bands are applied and baked, for example, on the outer sides of a heated baking drum. Subsequently, the endless dough sheet is removed at a take-off point in the hot, deformable state and possibly wound up, so that roll-shaped wafer products are formed. The spraying can be done during the baking process on the baking drum. Optionally, the spraying can also take place during the winding process. In such a device formed hollow sticks or rolled waffle products are made, which is an irregular

Have dot pattern.

Optionally, however, the method according to the invention and / or the device according to the invention is also used in other baking processes, such as, for example, in rolled sugar packets, biscuits, poured bags, flat wafers, hollow wafers or other baked products.

In a further consequence, the invention will be further described with reference to a figure.

Fig. 1 shows a schematically illustrated embodiment of a device according to the invention, which is particularly suitable for carrying out the method according to the invention. The device comprises a spray brush 4. This spray brush 4 is rotatably arranged about a rotation axis 5. The axis of rotation 5 runs in the present Projecting representation. The spray brush 4 has bristles 7, which are provided on a base body 6. The bristles are preferably fixedly connected to the base body 6. Preferably, the bristles are arranged around the base body 6, so that the shape of a round brush results. Optionally, however, the bristles are only partially, sectorally or irregularly on the base body. 6

intended. Preferably, the bristles 7 protrude radially from the main body 6 to the outside or protrude the bristles 7 in the radial direction, for example, slightly deviating from the radial axis of the main body 6 to the outside. The bristles 7 and / or their free ends 20 are preferably arranged so that they can move elastically so that they can be brought from a relaxed basic position into a prestressed position. This is done, for example, by pressing the spray brush on a stripper body 10. By this force acting on one or more bristles, they are biased. If the back pressure due to the stripper body is eliminated, the bristles preferably move automatically back to the direction of their basic position. This happens in particular by the elastic biasing force.

The spray brush, and in particular the axis of rotation 5, are arranged such that bristles 7 dip into the liquid 1 or into the surface 19 of the liquid 1 in a submerged portion 11. By rotation of the spray brush 4 and in particular by movement of the bristles 7 along the direction of movement 21 bristles are successively immersed in the liquid 1 and preferably at least partially wetted with liquid 1. In particular, the spray brush 4 or the bristles 7 have a brush radius 17. This brush radius 17 substantially corresponds to the farthest distance of the extension of the bristles from the axis of rotation 5. Furthermore, the axis of rotation 5 has a distance 18 to the surface 19 of the liquid 1. Of the

Brush radius is preferably greater than the distance 18, so that the bristles in

Immerse immersion section 1 1 in the liquid 1.

By further rotation of the bristles 7 and the spray brush 4, the wetted with liquid bristles 7 7 further direction stripping 10 moves. The stripping body 10 is for example a web, a beam or a plate. The surface of this

Abstreifköpers 10 has the axis of rotation 5 at a distance 26. This distance 26 is smaller than the brush radius 17. As a result, the bristles in one

Preload section pressed by rotation of the spray brush to the stripper body 10. As a result, the bristles in the biasing portion 12 against her

Direction of movement 21 pushed backwards and thereby biased.

The bristles are moved further by rotation of the spray brush 4 and finally reach a spray section 14. In this spray section 14, a free space 15 is arranged. The stripping body 10 is not arranged in the free space 15 or in the spray section 14 or outside the influence of the bristles, whereby the bristles are accelerated by the elastic bias in the direction of movement 21. Due to the elastic arrangement, however, these are braked again. In particular, by this acceleration and braking, the liquid provided on the bristles 1 separates from the bristles 7 and is sprayed from there to a Sprühort 16. Further, if necessary, the liquid in the spray area also separates from the bristles by the centrifugal force of the rotating spray brush.

The bristles 7 are located outside of the pretensioning area and outside of the spraying section 14 in a basic position 8. In this basic position 8, the bristles are relaxed and accordingly not pretensioned. In the biasing portion 12, the bristles are brought from the home position 8 in a biasing position 13. When leaving the biasing portion 12 and leaving the stripping body 10, the bristles are moved in the spray section 14 toward the basic position. Due to the inertia of the bristles, these are moved beyond this basic position 8 and, if appropriate, return to the basic position 8 after a short oscillating movement. In particular, by this acceleration of the bristles 7 in the spray section liquid droplets separate in a desired manner from the brush and are sprayed subsequently to the spray location 16.

Preferably, the free ends 20 of the bristles 7 are continuously or intermittently immersed in the liquid 1, then biased and then relaxed again in the spray section.

The liquid is preferably located in a container 9. This may be, for example, trough-shaped, so that the spray brush 4 can dip from above into the liquid 1 or immersed. The device preferably has a housing 22. This housing 22 surrounds the spray brush. The housing 22 has at least one Spray opening 23 on. This spray opening is designed such that the sprayed liquid can be conveyed from the spray brush to the desired spray location 16. By varying the size, shape and position of the spray opening 23, the shape, location and size of the spray location 16 can be influenced and / or defined.

The spraying location 16 is in the present embodiment in the area or on a baking mass 3. The baking mass 3 is arranged, for example, as an endless dough band along a conveying device 25. The conveying device 25 conveys the baking compound 3, in particular in the form of a strip of dough, continuously or intermittently through the spraying location 16. As a result, the liquid 1 is applied to the desired areas of the

Baking mass 3 applied. In particular, the liquid is applied to the baking mass 3 at a plurality of locations 2. The points 2 are preferably distributed irregularly and optionally have different sizes and shapes. This may result in the image of a randomly distributed liquid.

Furthermore, the housing 22 has a housing wall 24. That liquid, which does not escape through the spray opening 23 but rebounds on the housing wall 24, is preferably conducted along the housing wall 24 or in the housing 22 back to the container 9, so that this liquid can also be reused.

The present illustration of FIG. 1 is a schematic view. Optionally, the shape of the bristles may differ in the basic position and / or in the biasing position of the illustrated shape. In particular, the bristles in the

Be substantially rigid, wherein the compound of these rigid bristles may be formed elastically with the body. If necessary, the

Spray opening be made larger or smaller than in the present illustration.

The conveyor 25 may be, for example, the back ring of a ring baking machine or the winding device of a ring baking machine. Optionally, however, the conveying device is also designed as a rectilinear conveying device, such as, for example, as a conveyor belt, as a belt conveyor, as a moving baking plate or as a moving baking tray. For example, the spraying location could also be a baking compound provided on a baking plate or baking tongs. Optionally, a refill opening for refilling the liquid is provided in the container 9, so that liquid can be refilled even when the device is running, without the device must be stopped.

The base body 6 preferably has an axis or a shaft. For example, a rotary drive acts on the shaft, which rotates the main body and thus the spray brush in the indicated direction of rotation. Optionally, a further bearing point is provided to support the axis or the shaft of the base body 6.

Optionally, the spray brush has a certain width, which in the present illustration runs essentially along a projecting straight line. As a result, a wide spray location or a wide spray area can be formed. For example, this width may correspond to the width of a back ring. On the back ring, for example, several baking masses or several strip-shaped dough bands are baked side by side. The device may for this purpose have a plurality of spray openings, in which one or more spray brushes 4 spray the liquid 1 onto the baking masses.

LIST OF REFERENCE NUMBERS

1 . liquid

2nd place

3. Baking mass

4. Spray brush

5. axis of rotation

6. basic body

7. Bristles

8. Basic position

9. container

10. stripper body

1 1. Immersion section

12. bias section

13. Pretension position

4. Spray section

15. Free space

16. Spray location

17. Brush radius

18. distance liquid

19. Surface of the liquid

20. free end of the bristle

21. Direction of movement of the bristles

22. Housing

23. Spray opening

24. Housing wall

25. Conveying device

26. Distance stripping body

Claims

claims

1 . Apparatus for punctiform application of a liquid (1) to a plurality of places (2) on a baking mass (3) during the production process for producing a baked product comprising:

- A rotatable spray brush (4) with a rotatable about an axis of rotation (5) driven base body (6) and with bristles (7) in a basic position (8) of the base body (6) are outwardly and in particular around the body (6) are outward in the radial direction,

a container (9) with a liquid (1) provided in the container (9)

- And a stripper body (10), wherein the spray brush (4) in one

Immersion section (1 1) immersed in the liquid (1), so that bristles (7) are wetted by rotation of the spray brush (4) successively with the liquid (1) or, wherein the spray brush (4) in a biasing section (12) is pressed to the stripping body (10), so that liquid (1) wetted bristles (7) by rotation of the spray brush (4) successively on the stripping body (10) from the basic position (8) are brought into an elastically biased biasing position (13) or, and wherein a spraying section (14) is provided in which bristles (7) wetted with liquid (1) and prestressed in advance on the stripper body (10) are or are moved by rotation of the spray brush (4) into a free space (15) in that the prestressed bristles (7) are or are subsequently moved back in the direction of their basic position (8), whereby these bristles (7) experience an acceleration and the liquid (1) provided on the bristles (7) in the spray section (14) from the bristles (7) separates and is sprayed to a Sprühort (16) or is, characterized

characterized in that a conveying device (25) for conveying a baked or unbaked baking mass (3) is provided at the spraying location (16), that the liquid (1) is sprayed onto the baking mass or that the conveying device (25) is the baking ring of a ring baking machine or that the conveying device (25) is the winding device of a ring baking machine and that the baking mass (3) of the conveying device (25) in the form of a

Teigbandes continuously or intermittently through the Sprühort (16) is promoted.

2. Device according to claim 1, characterized in that the bristles (7) extend from the main body (6) to a brush radius (17), and that the smallest distance (18) between the axis of rotation (5) of the spray brush (4 ) and the liquid (1) and / or the surface of the liquid (19) is less than the brush radius (17), so that the brush and in particular the free ends of the bristles (7) in the immersion portion at least partially immersed in the liquid (1) ,

3. Apparatus according to claim 1 or 2, characterized in that the

Bristles (7) from the base body (6) to a brush radius (17)

extend, and that the smallest distance (26) between the axis of rotation (5) of the spray brush (4) and the stripper body (10) and / or the surface of the stripper body (10) is less than the brush radius (17), so that the

Spray brush (4) and in particular the free ends of the bristles (7) in

Biasing section are biased at least partially against their direction of movement (21) or become.

4. Device according to one of claims 1 to 3, characterized in that the liquid (1) is an edible liquid (1) or an edible

Dye is.

5. Device according to one of claims 1 to 4, characterized in that the spray brush (4) by a housing (22) is surrounded, that the housing (22) has a spray opening (23) through which the spray of the brush (4 ) sprayed liquid (1) towards the spray location (16) emerges.

6. The device according to claim 5, characterized in that the housing (22) of the container (9) is connected, so that to the housing wall (24) sprayed liquid (1) in the container (9) is collected.

7. Device according to one of claims 1 to 6, characterized in that at the spray location (16) a conveying device (25) for conveying a baked or unbaked baking mass (3) is provided, wherein the baking mass the liquid (1) is sprayed or is.

Method for punctiform application of a liquid to a plurality of locations on a baking mass during the production process for producing a baked product comprising the following steps:

- A rotatable spray brush with a rotatable about an axis of rotation

driven body and with bristles that are radially outwardly of the body to the outside is immersed in a dipping portion in the liquid so that bristles are wetted by rotation of the spray brush successively at least partially with the liquid,

the spray brush is pressed against a stripper body in a biasing section, so that bristles wetted with liquid guide are brought successively from the basic position into an elastically prestressed pretensioning position by rotation of the brush,

wetted with Flüssigleit, biased on the stripper bristles are moved by rotation of the brush in a spray section, where biased bristles move back one after the other in the direction of basic position, so that these bristles undergo acceleration and the fluid provided on the bristles separates from the bristles and a Spraying location is sprayed, characterized

- That the baking material is conveyed by the conveyor device in the form of a dough strip continuously or intermittently through the Sprühort

- And that the baked or unbaked baking mass at the Sprühort of a back ring as a ring baking machine or as a winding device

Ringback machine trained conveying device is conveyed.

A method according to claim 8, characterized in that the bristles extend from the main body to a brush radius, and that the smallest distance between the axis of rotation of the spray brush and the liquid and / or the surface of the liquid is less than the brush radius, so that the brush and in particular the free ends of the bristles in one

Immerse immersion section at least partially in the liquid.

10. The method according to claim 8 or 9, characterized in that the bristles extend from the base body to a brush radius, and that the smallest distance between the axis of rotation of the spray brush and the

Abstreifkörper and / or the surface of the stripper body is less than the brush radius, so that the brush and in particular the free ends of the bristles are biased in a biasing portion at least partially against their direction of movement.

1 1. Method according to one of claims 8 to 10, characterized in that the liquid is a consumable liquid or a consumable dye.

12. The method according to any one of claims 8 to 1 1, characterized in that the spray brush is surrounded by a housing, and that the housing has a spray opening through which the liquid sprayed by the spray brush is discharged in the direction Sprühort.

13. The method according to claim 12, characterized in that is connected to the housing of the container, so sprayed to the housing wall

Liquid is collected in the container.

14. The method according to any one of claims 8 to 13, characterized in that at the spray location, a conveying device for conveying a baked or unbaked baking mass is provided, wherein on the baking mass

Liquid is sprayed on.