DE2909960A1 - Plastics drainage moulds for soft cheese - have sidewall and bottom slits joining outside surface channels - Google Patents

Abstract

Slitform drainage openings in the side walls and bottom together with straight vertical recesses forming drainage channels, in the outer side walls, are provided in moulds of synthetic material for the production of soft cheeses. The channels extend to the bottom of the side walls but not to their upper rims, whilst the drainage of the bottom surface is ensured by feet on which the moulds stand. The moulds are injection mouldings made of material which is highly resistant to heat, chemicals, shock and is physiologically harmless, such as polyacetal, reinforced polypropylene, polyamide, etc. In the upper zone of the moulds the elasticity of the material causes bulging so that the moulds pack tightly side by side. No curds are wasted outside the mould during draining and their stability of form ensures continued efficient usage.

Description

Drainage mold made of plastic for making cheese.

The invention relates to a plastic drainage mold for cheese production for use in dairies and cheese factories, especially for the production of soft cheese such as B. Quark, without the application of external pressure on the cheese mass.

In the production of quark there is a need to be as lossless as possible to produce. During the process, the thermal influence on the product is intended the mold's own temperature should be as low as possible.

The molds should be as tight as possible before being filled in the collecting trays adjoining each other, the drainage after the formation of the Quarks however should not be interrupted. The individual forms must be dimensionally identical be and remain so that the filling quantities are constant and identical.

It is also required that the molds have a long shelf life and especially against cleaning solutions at temperatures up to 90 OC and of course are resistant to the usual concentration of lactic acid.

The mechanical properties in practical use must be the Requirements such as dimensional stability, rigidity, impact resistance and elasticity fulfill.

It is also required that the mass be slightly shaped after the operation can be.

The technical status is to be described as follows.

Molds made of aluminum are used to make layered cheese or quark in use. These have openings in the form of slits in the bottom and on the Sidewalls. These shapes are slightly tapered towards the bottom, so that the whey can flow away in this gap. But this gap is before the formation of the curd is filled with milk. That is why this space is also a loss to be valued in cheese production. Just the mass that remains within the forms can be used and is bottled. The aluminum molds are through cleaning and also chemically attacked by contact with lactic acid. The shapes show Significant deformations after a short time in use, so that the Losses are still increased, the filling quantities then deviate from the target weight. In addition, the aluminum molds act as a result of the higher heat capacity Aluminum reduces the temperature of the incoming, tempered milk.

There are also plastic molds in use, particularly in the Production of Camenbert can also be used in a pressureless process. here However, most of the whey is removed before the ripening process, so that less drainage is possible. These shapes are simple round or square ones Containers whose walls are perforated by simple bores. These forms will not tightly fitting together. You could be used for making cottage cheese or layered cheese cannot be used.

The solution to the problem required a critical selection regarding of the suitable thermoplastic material. The requirements are met by some met a few thermoplastics, so that the production from polyacetal, reinforced polypropylene, special reinforced polyamides or reinforced modified polystyrene or other thermoplastics.

The dimensional accuracy and evenness of the drainage forms is ensured by the injection molding in an injection mold secured. The shelf life is through to influence the shortlist of the named materials to a moderate extent, however, compared to the easily deformable, inelastic drainage form made of aluminum given a considerably longer service life in advance.

The low-loss, almost loss-free production is due to the dimensional accuracy and the shape secured.

The thermal interaction of the drainage forms on the milk or Cheese mass is due to the heat capacity of the materials compared to aluminum recognizable. For aluminum it is 2.43 kJ / qrP.-and for polyacetal 1.75 / kJ / g.K.

The formability is made possible by the smooth, frictionless inner surface secured by the plastic drainage mold.

The design is shown in 4 illustrations. Fig.

1 shows the view of one side. The drainage form has a light one Trapezoidal shape, the side surfaces 1 are cambered towards the top. The drainage openings 2 are continuous down to the bottom through a drainage channel 3 connected. The feet 4 continue the drainage below the ground.

Fig. 2 shows the top view of the drainage mold.

Drainage slots 5 are arranged in the bottom surface. The top edge 6 shows the crowning of the drainage mold.

Fig. 3 shows section A-B in an enlargement.

with the drainage openings 2 and the connecting drainage channel 3. The The illustration only shows a section of one side wall.

Fig. 4 shows the section C-D in an enlargement.

He puts the supervision on a drainage opening 2 and a drainage channel 3 represents.

In the production of quark and layered cheese, the individual Drainage molds placed close together in tubs. The crowning is with light Press down to form a straight line so that the structure, as desired, under a light Tightly closing a loss-free filling of the compound with the milk or cheese mass permitted.

The manufacturing process is particularly economical.

In the injection molding process, you get more than 1 million from one tool same parts provided that the same material is always used will.

The economy is based on the fact that this injection molding tool only needs to be made once.

thereby the higher raw material price becomes higher after the production Number of pieces compensated at least in part. But the economy is special given by the fact that the loss of milk or quark or cheese mass is quite considerable is decreased; This alone gives rise to economic viability according to an approximate calculation certainly achieved after one year. Blank page

Claims (5)

Drainage mold made of plastic for making cheese. Claims. Drainage mold made of plastic for t & eeherete} 8eng, characterized in that slot-shaped drainage openings in the side walls and in the bottom surface as well Urge channels are arranged in the side surfaces. 2. Drainage mold made of plastic for cheese production according to claim 1, characterized in that the drainage channels as straight, vertical depressions, on the outside in the side walls down to the bottom, but not up to the top Edge running, are arranged. 3. Drainage mold made of plastic for cheese production according to claim 1 and 2, characterized in that the drainage under the bottom surface by feet on Bottom of the form is enabled. 4. Drainage mold made of plastic for cheese production according to the claims 1, 2 and 3, characterized in that a slight camber of the side walls in the upper area due to the elasticity of the plastic when sticking together of the forms results in a closed arrangement. 5. Drainage mold made of plastic for cheese production according to the claims 1, 2, 3 and 4, characterized in that the material used to manufacture the drainage forms In the injection molding process, a thermally highly resilient, chemically resistant, thermoplastic Plastic is used, which is impact-resistant and physiologically harmless.