DE102011003932B4 - Device for conveying dough masses - Google Patents

Abstract

Device (1) for conveying dough masses (T) along a conveying path (a), comprising a conveying profile (4) with at least one conveyor belt (5) which runs around the conveying profile (4) and is movable by means of a first drive unit (7), wherein a first end of a first section (4.1) of the conveyor profile (4) protrudes with a predetermined dimension into a receiving element (2) in which the dough mass (T) is arranged, a lifting device (9) connected to the conveyor profile (4) and a sensor arrangement (10), by means of which a fill level (f) of the dough mass (T) in the receiving element (2) can be detected, the conveyor profile (4) depending on the detected fill level (f) by means of the lifting device (9) relative to the Receiving element (2) can be positioned.

Description

The invention relates to a device for conveying dough masses.

In order to achieve the largest possible baking volume, doughs, such as batters or Bisquitmassen, in a container, in particular a stopper kettle, by stirring or whipping, with a corresponding stirrer, z. As a whisk, enriched with air. For further processing of these now voluminous dough masses, these must then be used for further processing, for. B. with a skin pass, are filled into a reservoir of the finishing machine.

So far, this Umfüllvorgang done either manually with a scoop, which is very time consuming and causes a spill pollution in the adjacent region of the processing container, or by dumping the dough from the stop kettle into the processing vessel. This is very cumbersome from a boiler size of more than five liters of content and may need to be performed by two or more workers, since the filling height of the dough mass container is usually over 1500 millimeters, so that an ascending platform for at least two workers is necessary.

In addition, it is known to promote the dough masses by means of a pumping device for further processing machine. Previously known pumping devices, such as gear pumps or piston pumps, can promote the bulky dough masses by means of a delivery hose to the desired location. However, the conveying resistance on the conveying path, in particular in the delivery hose, is so great that the voluminous dough mass undergoes compression and the previously introduced when striking volume, especially air, lost and consequently only a relatively small baking volume is achieved when baking the dough mass, which an unacceptable quality defect.

The DE 35 87 021 T2 discloses an apparatus for making bakery products having an open container for receiving a raw material batter for the baked product which is rotary driven and partially immersed in said open container to adhesively supply the batter to the outer surface and a back roller adjacent thereto to said transfer roll is arranged to bake the batter transferred from said transfer roll to the outer heated surface, and a scraper to scrape the baked goods from said back roll, said baking roll forming a fixed, tubular body of magnetic material a longitudinal gap extending from one end to the other end, a field coil bobbin mounted on said fixed tubular body, and having an outer hollow cylindrical member made of a magnetic material which is rotatably and concentrically fixed on said one end, tubular body and is mounted adjacent to and outside of said exciter bobbin.

Furthermore, the disclosure DE 41 27 873 C2 a continuous kneading device for a mass to be kneaded, in particular for leaven, with a container enclosing a mass-loadable Knetraum and in an input area inlet openings for components of the mass to be kneaded and in the passage direction substantially on the opposite side an outlet opening for the having kneaded mass, and with a kneader, wherein container and kneader part is formed as a rotor and a part as a stator, the stator has kneading elements which cooperate with kneading elements of the rotor, and the rotor is driven. It is provided that the container surrounding the kneading space and the rotor axis are arranged vertically and the bearing of the rotor is arranged above the kneading space.

The invention is therefore based on the object to provide a comparison with the prior art improved device by means of a gentle promotion of dough masses in conjunction with an avoidance of volume losses of the dough masses, is possible.

The object is achieved by a device having the features of claim 1.

Advantageous embodiments of the invention are the subject of the dependent claims.

A device for conveying dough masses along a conveyor line comprises a conveyor profile with at least one conveyor belt, which circulates the conveyor profile and can be moved by means of a first drive unit. In this case, a first end of a first section of the conveyor profile protrudes with a predetermined degree in a receiving element, in which the dough material is arranged. Furthermore, the device comprises a lifting device connected to the conveying profile and a sensor arrangement, by means of which a filling level of the dough mass in the receiving element can be detected, wherein the conveying profile is positionable depending on the detected filling level by means of the lifting device relative to the receiving element.

By means of the device a gentle and largely compression-free promotion of the dough mass is possible, wherein the air contained in the dough mass, which serves in particular for loosening the dough and thus significantly determines the quality of the dough, is retained.

The positioning of the first end of the first section of the conveyor profile also allows the dough mass evenly distributed on the conveyor belt during the conveying process. The lifting device thereby positions the conveyor profile as a function of the detected level height so that the first end of the first section permanently immersed in the dough with a predetermined depth.

In addition, the conveying profile is preferably subdivided into the first subsection and a second subsection. In particular, the first section has the first end and a second end and the second section has a first end and a second end.

The first section has a linearly increasing profile from its first end to its second end, wherein the second section has a horizontal course from its first end to its second end. Alternatively, the second section may have a linearly decreasing profile.

The first section has a first deflecting element and a second deflecting element, wherein the first section is connected to the second section via the second deflecting element. The second section has the second deflecting element and a third deflecting element. The deflecting serve in particular as a carrier for the conveyor belt, which is clamped onto the deflecting elements. Furthermore, the deflecting serve as a drive unit for the conveyor belt. For example, the second deflecting element with the first drive unit, for. As an electric motor, connected, which controls the first deflecting element, so that it performs a rotational movement, resulting in that the conveyor belt is moved in its longitudinal direction. The movement of the conveyor belt then leads to a rotational movement of the further deflection elements, which enables energy-efficient operation of the device.

In order to ensure a uniform distribution of the dough mass on the conveyor belt at any time of the conveying operation, the lifting device preferably displaces the conveyor profile along an axis which runs parallel to a vertical axis of the device. Thus, the displacement of the conveyor profile along the axis proportional to the change in the level height of the dough mass in the receiving element, whereby the predetermined depth at which the conveyor profile dips into the dough, continuously to the filling level of the dough in the receiving element is adaptable.

The lifting device is preferably by means of a second drive unit, for example, a further electric motor, controllable.

Particularly preferably, the lifting device has a hollow-cylindrical spindle nut with an internal thread and a threaded spindle with an external thread directed counter to the internal thread. The spindle nut is rotatably connected to the threaded spindle and vertically slidably connected. In an alternative embodiment, the lifting device has a hydraulic cylinder, by means of which the conveying profile can be moved along the axis.

In order to be able to control the lifting device automatically, it is connected to the sensor arrangement, which comprises a holding element and at least one sensor.

In order to enable a non-contact detection of the filling level of the dough, the sensor is preferably an optical, conductive, capacitive or ultrasonic sensor.

In a preferred, alternative embodiment of the invention, instead of the dough masses, ceramic masses can be used.

Embodiments of the invention will be explained in more detail below with reference to a drawing.

It shows:

1 schematically a side view of a device for conveying dough masses.

Corresponding parts are provided in all figures with the same reference numerals.

1 schematically shows a device 1 for conveying dough masses T in side view.

The device 1 preferably represents a mass delivery system, which promotes a dough mass T along a conveying path a.

The dough mass T is located in a receiving element 2 , For example, a stopper kettle, which on a support device 2.1 arranged and transparent, wherein the dough mass T in the receiving element 2 has a level height f.

The receiving element 2 For example, is a stopper kettle whose volume is greater than 60 liters, which is used in particular for larger manufacturers of baked goods in the production of their stirring or Bisquitmassen. The support device 2.1 of the receiving element 2 is for example a special chassis, so that the receiving element 2 can be positioned to a corresponding processing position and the device 1 at the respective location in the receiving element 2 is submersible. Alternatively, the receiving element 2 be provided with wheels.

The dough mass T is produced in a process, not shown, by means of a stirring machine and then into the receiving element 2 filled.

To the dough mass T from the receiving element 2 out to a processing unit 3 which in particular represents a molding machine for shaping the dough mass T and a further receiving element 3.1 has to promote, is between the receiving element 2 and the processing unit 3 a subsidy profile 4 with a conveyor belt 5 arranged.

The processing unit 3 is further from a support device 3.2 and is, with respect to a vertical axis z of the device 1 , inside the device 1 higher than the receiving element 2 arranged.

The conveyor profile 4 is a supporting structure for the conveyor belt 5 formed and preferably made of a metal or a metallic alloy, such as. Steel.

In this case, the conveyor profile extends 4 essentially over the entire conveying path a, the conveying profile 4 the course of the conveyor line a follows in such a way that it follows or predetermines each course change of the conveyor line a accordingly. A conveying direction of the conveying path a is marked with an arrow.

Preferably, there is the conveyor profile 4 from several sections, in particular a first and second section 4.1 . 4.2 ,

The first section 4.1 has a linearly increasing profile from its first end to its second end, wherein the first end of the first section 4.1 the receiving element 2 facing and the second end of the first section 4.1 the receiving element 2 turned away.

The conveying profile protrudes here 4 with the first end of the first section 4.1 with a predetermined amount in the receiving element 2 into it, leaving the first end of the first section 4.1 at least in part, in particular with a predetermined depth, dips into the dough mass T. The second end of the first section 4.1 is at a first height h1 above the processing unit 3 arranged.

Furthermore, the first end of the first section has 4.1 a first deflecting element 6.1 on, which with the predetermined depth in the dough mass T in the receiving element 2 dips.

The second end of the first section 4.1 has a second deflecting element 6.2 on which it with the second section 4.2 connected is.

The second section 4.2 has a horizontal course from its first end to its second end, the first end of the second section 4.2 the processing unit 3 turned away and the second end of the second section 4.2 the processing unit 3 is facing. The second section 4.2 thus extends over a width of the processing unit 3 in that the second end of the subsection 4.2 approximately in the middle and at the first height h1 above the other receiving element 3.1 the processing unit 3 is arranged.

Alternatively, the second subsection 4.2 a linearly decreasing course from its first end to its second end.

The first end of the second subsection 4.2 has the second deflecting element 6.2 and the second end of the second subsection 4.2 a third deflecting element 6.3 on, wherein the second end of the second section 4.2 with the third deflecting element 6.3 with the first height h1 above the processing unit 3 is arranged.

The deflecting elements 6.1 . 6.2 . 6.3 are preferably rotatably mounted, for example, these represent rotationally symmetric rollers, and have one with respect to a longitudinal diameter of the conveyor profile 4 larger longitudinal diameter.

In a preferred embodiment, the deflection elements 6.1 . 6.2 . 6.3 made of the same material as the conveyor profile 4 and provided with an adhesive coating to protect against frictional forces occurring.

The deflecting elements 6.1 . 6.2 . 6.3 are each with the conveyor profile 4 bolted, welded or otherwise rigidly or hingedly connected.

At least one of the deflecting elements 6.1 . 6.2 . 6.3 is via a first drive unit 7 controllable, which for example in the form of a Electric motor is formed and preferably releasably connected to the corresponding deflection 6.1 . 6.2 . 6.3 connected is. In the present embodiment, the first drive unit 7 with the second deflecting element 6.2 connected.

The first drive unit 7 controls the second deflecting element 6.2 so that this performs a rotational movement, so that one on the conveyor profile 4 arranged conveyor belt 5 is moved in the conveying direction, resulting in a rotational movement of the first and third deflecting element 6.1 . 6.3 leads, which allows in a profitable way, an energy-efficient promotion of the dough mass T.

The conveyor belt 5 is on the deflection elements 6.1 . 6.2 . 6.3 arranged, in particular, the conveyor belt 5 on the conveyor profile 4 spanned all around.

This is the conveyor belt 5 in a flow line, which from the first end of the first section 4.1 to the second end of the second subsection 4.2 runs and the dough T from the receiving element 2 out into the other receiving element 3.1 the processing unit 3 promotes, as well as a return strand, which from the second end of the second section 4.2 to the first end of the first subsection 4.1 on a side opposite the flow line side on the conveyor profile 4 goes back, dividable.

To streamline the return strand of the conveyor belt 5 has the conveyor profile 4 a below the first deflecting element 6.1 arranged fourth deflecting element 6.4 on which the conveyor belt 5 is spanned.

In addition, the conveyor belt 5 one with a diameter of the deflecting elements 6.1 . 6.2 . 6.3 corresponding diameter.

Alternatively, several conveyor belts 5 , which run parallel to each other, on the deflecting elements 6.1 . 6.2 . 6.3 be clamped, resulting in an increase in the performance of the device 1 leads.

Preferably, the conveyor belt 5 from a plastic, such as polyurethane, which is characterized by its good mechanical properties, such as a high tensile strength, especially. In addition, polyurethane is suitable to promote the dough mass T largely lossless along the conveyor line a, since the dough mass T has viscous properties and thus on the conveyor belt 5 liable.

To the conveyor belt 5 at its return strand of the dough mass T free, so that these in the processing unit 3 is at the second end of the second subsection 4.2 at one of the processing unit 3 facing side a doctor blade 8th on the conveyor profile 4 arranged over the outer surface of the return strand of the conveyor belt 5 protrudes.

The scraper blade can 8th using screw and nut combination or other appropriate fasteners on the conveyor profile 4 be attached.

The scraper blade 8th can be a curved shape, with the inner surface in one direction on the conveyor belt 5 curved, have a flat rectangular shape or a correspondingly different shape.

In a preferred embodiment, the doctor blade is 8th made of polyurethane.

By means of the scraper blade 8th is it possible to use the conveyor belt 5 To free the dough mass T as much as possible, allowing an increase in the performance and life of the conveyor belt 5 is possible.

To an optimal amount of dough T and a uniform distribution of these on the conveyor belt 5 ensuring is the conveyor profile 4 with the first deflecting element 6.1 at least partially in the receiving element 2 arranged, in particular with a predetermined dimension in the receiving element 2 protruding so that the conveying profile 4 with the first deflecting element 6.1 dips into the dough mass T at the predetermined depth.

Since the filling height f of the dough mass T in the receiving element 2 represents a variable size, which changes during the promotion of the dough mass T, in particular reduced, is the conveying profile 4 particularly preferably vertically displaceable, so that the conveying profile 4 with the first deflecting element 6.1 permanently with the predetermined depth in the dough 2 dips.

This is the funding profile 4 with a lifting device 9 connected, which the conveyor profile 4 along an axis z1 parallel to a vertical axis z of the device 1 runs, shifts.

The lifting device 9 is to between the receiving element 2 and the processing unit 3 arranged.

Furthermore, the lifting device is used 9 in addition, the subsidy profile 2 support and hold in position.

The lifting device 9 is on a support device 9.1 arranged and in particular designed as a telescopic lifting system.

For this purpose, the lifting device, for example, a hollow cylindrical spindle nut 9.2 with an internal thread and a threaded spindle 9.3 with an external thread directed towards the internal thread, wherein the spindle nut 9.2 with the threaded spindle 9.3 rotatably and vertically slidably connected.

The lifting device 9 is by means of a second drive unit 9.4 , For example, an electric motor, controllable, which is a rotation of the threaded spindle 9.3 generated, causing a rectified, vertical displacement of the spindle nut 9.2 along the axis z occurs. The direction of rotation of the threaded spindle 9.3 determines the direction of the vertical displacement of the spindle nut 9.2 ,

In the present embodiment, the spindle nut 9.2 moved vertically downwards. The size of the vertical displacement of the spindle nut 9.2 is proportional to the change in the level height f of the dough T in the receiving element 2 , The first height h1 of the second subsection 4.2 of the funding profile 4 changes also proportionally to the level height f.

Alternatively, the lifting device 9 also have a hydraulic cylinder.

So that the second drive unit 9.4 the lifting device 9 can be operated automatically, the level height f of the dough mass T in the receiving element 2 be reliably detected.

For this purpose, the lifting device 9 at a receiving element 2 facing side a sensor arrangement 10 on which a holding element 10.1 and a sensor 10.2 having.

The holding element 10.1 is preferably web-shaped and is vertical, ie at an angle of 90 °, of the lifting device 9 off, leaving the retaining element 10.1 over a certain width of the receiving element 2 extends and is arranged at a second height h2 above this.

At the free end of the retaining element 10.1 is the sensor 10.2 arranged, which particularly preferably the filling level height f of the dough mass T in the receiving element 2 continuously recorded.

The sensor 10.2 can be designed as an optical, conductive, capacitive or ultrasonic sensor.

The from the sensor 10.2 detected level height f is continuously transmitted to a control unit, not shown, in the form of an electrical signal, which is the second drive unit 9.4 as a function of the detected level height f drives, so that the conveyor profile 4 with the conveyor belt 5 relative to the receiving element 2 is shifted so that the first end of the first section 4.1 permanently immersed in the dough mass T with the predetermined depth until the filling height f reaches a value close to zero, ie until the receiving element 2 is emptied.

Thus, it is possible that in promoting the dough mass T these each with the same amount on the conveyor belt 5 which ensures a uniform distribution of the dough mass T on the conveyor belt 5 is ensured.

In addition, by means of the device 1 a gentle and largely compression-free promotion of the dough mass T possible, which contains the air contained in the dough mass T, which is used in particular for loosening the dough mass T and thus significantly determines the quality of the dough mass T obtained.

Alternatively to the promotion of the dough mass T, the device 1 also be used for other materials. For example, the device 1 Find application in the ceramic industry, in which, for example, porous ceramic is processed.

LIST OF REFERENCE NUMBERS

1

contraption

2

receiving element

2.1

support device

3

processing unit

3.1

another receiving element

3.2

support device

4

transportation profile

4.1

first section

4.2

second subsection

5

conveyor belts

6.1

first deflecting element

6.2

second deflecting element

6.3

third deflecting element

6.4

fourth deflecting element

7

first drive unit

8th

scraper blade

9

lifting device

9.1

support device

9.2

spindle nut

9.3

screw

9.4

second drive unit

10

sensor arrangement

10.1

retaining element

10.2

sensor

a

conveyor line

f

filling level

h1

first height

h2

second height

z

vertical axis

z1

axis

T

dough

Claims (12)

Contraption ( 1 ) for conveying dough masses (T) along a conveying path (a), comprising a conveying profile ( 4 ) with at least one conveyor belt ( 5 ), which the production profile ( 4 ) and by means of a first drive unit ( 7 ) is movable, wherein a first end of a first section ( 4.1 ) of the funding profile ( 4 ) with a predetermined dimension in a receiving element ( 2 ), in which the dough mass (T) is arranged, one with the conveyor profile ( 4 ) associated lifting device ( 9 ) and a sensor arrangement ( 10 ), by means of which a filling level (f) of the dough mass (T) in the receiving element ( 2 ), whereby the production profile ( 4 ) as a function of the detected fill level (f) by means of the lifting device ( 9 ) relative to the receiving element ( 2 ) is positionable. Contraption ( 1 ) according to claim 1, characterized in that the conveyor profile ( 4 ) in the first part ( 4.1 ) and a second subsection ( 4.2 ) is divisible. Contraption ( 1 ) according to claim 1 or 2, characterized in that the first subsection ( 4.1 ) has a linearly increasing course. Contraption ( 1 ) according to one of claims 1 to 3, characterized in that the second subsection ( 4.2 ) has a horizontal course. Device according to one of claims 2 to 4, characterized in that the first subsection ( 4.1 ) a first deflecting element ( 6.1 ) and a second deflecting element ( 6.2 ) and the second subsection the second deflection element ( 6.2 ) and a third deflecting element ( 6.3 ), wherein the first subsection ( 4.1 ) with the second subsection ( 4.2 ) via the second deflecting element ( 6.2 ) connected is. Contraption ( 1 ) according to claim 1, characterized in that the conveyor profile ( 4 ) by means of the lifting device ( 9 ) along an axis (z1) parallel to a vertical axis (z) of the device (z) 1 ), is displaceable. Contraption ( 1 ) according to one of the preceding claims, characterized in that the lifting device ( 9 ) by means of a second drive unit ( 9.4 ) is controllable. Contraption ( 1 ) according to one of the preceding claims, characterized in that the lifting device ( 9 ) a hollow cylindrical spindle nut ( 9.2 ) with an internal thread and a threaded spindle ( 9.3 ) having an external thread facing the internal thread. Contraption ( 1 ) according to claim 8, characterized in that the spindle nut ( 9.2 ) with the threaded spindle ( 9.3 ) rotatably and vertically slidably connected. Contraption ( 1 ) according to claim 1, characterized in that the sensor arrangement ( 10 ) a holding element ( 10.1 ) and at least one sensor ( 10.2 ). Contraption ( 1 ) according to claim 10, characterized in that the sensor ( 10.2 ) is an optical, conductive, capacitive or ultrasonic sensor. Contraption ( 1 ) according to one of the preceding claims, characterized in that ceramic masses can be used instead of the dough masses (T).

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