DE202013000703U1 - Coating machine for chocolate masses - Google Patents

Abstract

Coating machine (1) for chocolate masses, wherein at a coating station (2) a grid belt (8) for receiving parts to be coated is passed and below the grid belt (8) designed as a trough mass container (14, 21) is arranged in the the excess mass is collected and recycled to the circuit, characterized in that the trough-shaped mass container (14) is divided into preferably two chambers and for the transport of Überziehmasse (9) in addition to the circulation pump (27) and a return pump (18) is provided ,

Description

The present invention relates to a coating machine for chocolate masses, wherein at a coating station, a grid belt for receiving parts to be coated is passed over and below the grid belt, a trough is arranged, in which the excess mass is collected and passed on to a tempering. For the function of the system, it is irrelevant whether the tempering device is installed directly in the coating machine or whether it is provided separately next to the coating machine. In this case, the supply takes place via corresponding supply lines. In the tempering the chocolate mass to be tempered is transferred by a cooling process with subsequent heating process in such a workable state that they usually with the help of the coating station, which is usually at least a veil box for the formation of a soffit curtain and a blower for removing excess mass of the Candy pieces exists, can be processed easily. So that the parts to be coated are always completely covered with chocolate mass, working with excess mass, the excess mass is collected in a possibly tempered drip pan. From here, at least part of the mass is in turn passed through the tempering station in order to permanently maintain the set temperature conditions of the mass in the coating station. There are also combined machines with two circuits for the tempered liquid mass known. A first cycle leads through the tempering machine and through a reservoir for tempered mass. A second circuit, in which a comparatively larger mass flow is moved, leads directly from the reservoir to the veil box.

Combined tempering and coating machines of the type in question are known. So z. B. in the DE-AS 12 73 312 a machine described in which the items to be coated, z. As chocolate bars, chocolates, biscuits, cake pieces, ice cream o. The like. Can be treated during their production with additional grit. In this case, there is a risk that parts of the material to be spread or the pieces of goods will come loose and get into the circulation of the liquid mass together with the excess mass. If these solid components get into the veil box, blockages of the outlet openings may occur, which means that trouble-free and clean coating is no longer possible. From various older patent applications pump assemblies for supplying the coating station with coating composition are known. So z. B. also in the DE 20 2012 008 388.0 a tempering and coating machine known in which the Überziehmasse with the aid of a driven by an electric motor circulating pump arrives at the coating station. Such pumps are often housed in easily accessible locations of the machine. At today's usual delivery pressures, it is necessary that the pump is carefully sealed in the region of the drive, in order to prevent leakage of coating composition. Here the most different types of seals are used.

A disadvantage of the solutions described in the prior art is that the storage of the pump shaft of the circulation pump for smooth operation must be lubricated regularly, resulting in interruptions of the working process. In addition, the shaft seal must be checked because no lubricant may enter the coating compound.

The invention has for its object to provide a circulation pump and an arrangement of the pump, in which contamination of the coating composition is prevented and in which no foreign lubricant is used.

This object is achieved in that the circulation pump is flanged directly to the ground trough and the lubrication is carried out by the coating mass itself. Here it is helpful that the circulation pump and pump drive are separated from each other. The drive is via a drive shaft, which is mounted in the side wall of the ground pan. This storage, which is located in the non-pressurized area of the ground pan, can be easily sealed. The bearing on the pump side is designed as a plain bearing, the clearance in the bearing is so large that coating compound can penetrate, so that the grease contained in the coating mass can lubricate the bearing. In order to achieve a uniform distribution of the coating material in the mass container, a partition wall can be provided in the mass container, so that any excess mass can run into the region for the return mass. From this area then the return mass by means of the return pump z. B. pumped into the mass container.

Also, the return pump is - as the circulation pump - sealingly attached to the side wall of the ground trough and is driven by the attached to the opposite wall of the ground trough motor by means of a drive shaft.

The invention will be explained and described with reference to a preferred embodiment. Show it:

1 a side view of a functional representation of a coating machine;

2 a stylized plan view of a ground well and the flanged thereto pumps accordingly 1 ,

In the 1 illustrated coating machine ( 1 ) shows in a schematic side view like the grid belt ( 8th ) within a coating station ( 2 ) to be led. Inside the machine frame, which stands on feet ( 17 ), the deflection or drive rollers ( 4 ) for the drive and the guidance of the grid belt ( 8th ). As can be seen, the grid belt runs ( 8th ) in this example clockwise, ie the products to be coated are from left to right through the grid belt ( 8th ) emotional. At the right end of the upper run of the grid belt ( 8th ), the products coated with the coating composition are taken over by a further conveyor belt (not shown here) and transported to cool or harden by a cooling duct, likewise not shown here. Since the coating process is a continuous process, ie the products to be coated are applied to the grid belt at the left end of the coating machine ( 8th ), it must be ensured that the products to be coated are clean and smooth on the 8th ) can be stored. For this it is necessary that the on the surface of the grid belt ( 8th ) has been removed from the products to be coated expired coating composition thereof. For this purpose, a grid tape ( 8th ) supporting vibrating station ( 16 ) intended. The parts of the coating mass which are dissolved by the shaking process fall back into the mass container via a chute ( 14 ) and again with the in this mass container ( 14 ) tempered mass ( 15 ) mixed. Via the suction line ( 33 ), the coating composition ( 15 ) from a circulation pump ( 10 ) at the measuring station ( 5 ) over to a three-way valve ( 22 ), from where the tempered mass ( 15 ) either through a line to the ground station ( 4 ) or through the line ( 35 ) to the coating station ( 2 ) is transported. The on the pipeline ( 11 ) fixed measuring station ( 5 ) has the task of determining the temperature within the mass ( 15 ). In the mass container ( 14 ) is a partition ( 20 ) provided the mass container ( 14 ) transverse to the longitudinal direction of the coating machine ( 1 ) Splits. From the tempering tank ( 21 ) is the chocolate mass through the connecting pipe ( 33 ) of the circulation pump ( 10 ) supplied to the Überziehmasse ( 9 ) through the pipeline ( 11 ) of the measuring station ( 5 ) and the 3-way valve ( 22 ). From the 3-way valve ( 22 ), the Überziehmasse ( 9 ) either to the ground station ( 4 ) or through the line ( 35 ) to the coating station ( 2 ) or forwarded to both. If too much coating compound should run into the tempering tank, it can then move the partition ( 20 ) and pass into the return trough. The mass in this return trough ( 15 ) is then removed by means of the return pump ( 18 ) through the connecting tube ( 29 ) to a - not shown - tank promoted. 2 Shows in a plan view the arrangement of the circulation pump ( 27 ) on the tempering trough ( 21 ) and the return pump ( 18 ) on the mass container ( 14 ). The construction according to the invention is chosen such that a lubricant necessary for the proper operation of the pumps is neither introduced into the mass container ( 14 ) still in the Temperierwanne ( 21 ) can get. Both pump housings ( 28 and 19 ) are on the side walls of mass containers ( 14 ) and tempering trough ( 21 ) flanged sealingly. The bearing of the drive shafts ( 25 and 30 ) is pump-side designed as a plain bearing, the bearing clearance was slightly increased so that the Überziehmasse ( 9 ) can penetrate into the bearing gap due to the delivery pressure and so lubricates the bearing with the Überziehmasse. By this type of lubrication is an impurity of Überziehmasse ( 9 ) excluded by foreign lubricant. For maintenance reasons drive and pump were arranged separately. The connection is made by the drive shafts ( 25 . 30 ). This solution also has the advantage that the storage of the drive unit ( 23 . 24 ) can be sealed by a simple Simmerring, since the area of the drive is not pressurized.

LIST OF REFERENCE NUMBERS

1

Enrober

2

Covering station

3

blower station

4

ground station

5

measuring device

6

control panel

7

Bodenabstreichwalze

8th

mesh belt

9

Stall mass

10

circulating pump

11

pipeline

12

screening

13

pollution

14

bulk container

15

Dimensions

16

vibrating station

17

stands

18

Recirculation pump

19

pump housing

20

partition wall

21

thermostatic trough

22

3-way valve

23

Drive for return pump

24

Drive for circulation pump

25

Drive shaft for circulation pump

26

27

circulating pump

28

Circulation pump housing

29

connecting pipe

30

Drive shaft for return pump

31

Recirculation mass

32

connecting pipe

33

connecting line

34

pipeline

35

management

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

• DE 1273312 [0002]
• DE 202012008388 [0002]

Claims (5)

Coating machine ( 1 ) for chocolate masses, wherein at a coating station ( 2 ) a grid belt ( 8th ) is guided past for receiving parts to be coated and below the grid belt ( 8th ) a pan designed as a mass container ( 14 . 21 ) is arranged, in which the excess mass is collected and recycled to the circuit, characterized in that the trough-shaped mass container ( 14 ) is divided into preferably two chambers and for the transport of Überziehmasse ( 9 ) next to the circulation pump ( 27 ) also a return pump ( 18 ) is provided. Coating machine ( 1 ) for chocolate masses according to claim 1, characterized in that the circulating pump ( 27 ) from a separate drive from the pump ( 24 ) is driven. Coating machine ( 1 ) for chocolate masses according to claim 1, characterized in that the return pump ( 18 ) from a separate drive from the pump ( 23 ) is driven. Coating machine ( 1 ) for chocolate masses, wherein at a coating station ( 2 ) a grid belt ( 8th ) is guided past for receiving parts to be coated and below the grid belt ( 8th ) a pan designed as a mass container ( 14 . 21 ) is arranged, in which the excess mass is collected and recycled to the circuit, characterized in that the circulation pump ( 27 ) and their drive ( 24 ) are formed as a unit. Coating machine ( 1 ) for chocolate masses, wherein at a coating station ( 2 ) a grid belt ( 8th ) is guided past for receiving parts to be coated and below the grid belt ( 8th ) a pan designed as a mass container ( 14 . 21 ) is arranged, in which the excess mass is collected and recycled to the circuit, characterized in that the return pump ( 18 ) and their drive ( 23 ) are formed as a unit.

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