DD264138A1 - DIVIDING MACHINE WITH PART CHAMBER AND EXHAUST PISTON - Google Patents

Abstract

The invention relates to a Teigteilmaschine with sub-chambers and ejection piston, consisting of a Teigvorratsbehaelter, discharge aids, which are arranged below the Teigvorratsbehaelters and a Zufuehrkanal, which are associated with a slide and a loading and Entlüftungsventil. The aim of the invention is to increase the throughput of such devices with careful processing and maintaining the dosing accuracy. The invention is based on the object, by o. G., By low pressure and extended loading time o. To reach the goal. This object is achieved in that a pressure chamber between the slide (6) and the metering drum (9) is arranged and connected to a spring-loaded pressure compensation chamber. Fig. 1

Description

Dough dividing machine with partial chamber and ejection piston Anwendungsgebist the invention

The invention relates to a Teigteilmaschine with sub-chambers and ejection piston, consisting of a Teigvorratsbehälter, discharge aids, which are arranged below the Teigvorratsbehälters and a feed channel, which is associated with a slide and a re- and vent valve »

Characteristic of the known technical solutions

Dough dividing machines of the type described here are characterized by high dosing accuracy. The necessary dough pressure for filling the measuring chambers is produced by rhythmically moving plungers. The duration of the filling depends on the throughput per dosing series and amounts to a maximum of 30 % of the duration of a work cycle. In order to press the dough in this short period of pressure into the volumetric flask, a considerable pressure is necessary. The required pressing pressure is further enhanced by the fact that the dough is compressible and does not follow Newton's pure printing laws. In particular, the wheat dough undergoes an irreversible dough damage, which causes the decrease of the specific pastry volume and other, visible in the baking process, adverse effects.

In order to avoid this disadvantage, it has been proposed in DE-PS 11 75 176 to perform the pressure piston spring-loaded # This can be counteracted ei.ar sudden top load and said dough damage. However, the necessary pressures that are unavoidable for the required productivity of modern machines can not be realized by this arrangement.

In DE-OS 29 15 348 a compression space is proposed. The compression chamber is upstream of the measuring chamber, By its funnel-shaped configuration, a uniform pressure on the dough section is exercised, the no harm «lent impact Jer has described above shape, inevitable inclusions of air, as they arise from the moving plunger, but also here to a

Inhomogeneity of the dough piece,

By DE-PS 34 C5 977 this should be avoided. The measuring chambers here is associated with acting as a predosing chamber delivery chamber «This has a gap connection to the atmosphere, so that the air to be displaced during the pressing process can escape.

The disadvantage is that it can not be avoided that dough penetrates into the gap, this added and thus impaired the function.

All the solutions mentioned have the disadvantage that inevitable irreversible dough damage occurs when high productivity is to be achieved. But high throughput requires a lot of pressure

Object of the invention

The aim of the invention is to increase the throughput of such devices with careful processing and maintaining the dosing accuracy,

Essence of the invention

The invention is based on the object, by low pressing pressure and extended loading time the o, g. To reach the goal. This object is achieved in that a pressure chamber between the slide (6) and the metering drum (9) is arranged and connected to a spring-loaded pressure compensation chamber.

This solution has the advantage that high pressures are avoided, it can come to no dough damage. The system is still ^ ore productive, what is achieved in particular in that the metering drum miv a constant peripheral speed läu * t d ^<charging duration to ca, 50% of the working cycle can be extended and the required injection pressure is considerably below the values of a rhythmic metering ,

AusfC.jrungsbeispiel

The invention will now be explained in more detail with reference to an exemplary embodiment, the accompanying drawings have the following meaning:

FIG. 1: schematic representation of the dough dividing machine during dough refilling

Figure 2: Teigteilmaschine with open slide

As can be seen from FIG. 1, the dough dividing machine according to the invention consists of a dough storage container 1 to which a discharge aid 2 is assigned. Below the discharge aid 2 is a feed channel 7, in which a feed element, here a pressure piston 3, is guided. The supply passage 7 is closed by a slide, uer located at the exit of the feed channel. 7 There is also a ventilation valve 12 is arranged. The Schiebsr 6 is followed by a pressure chamber 4, which is connected to a foderbelastetan Druekausgleichsraum 5. A metering drum 9 with arranged in rows Toilkammern 13 is mounted below the pressure chamber 4. In the sub-chambers 13 are ejection piston 8,

For the operation of the dough dividing machine according to the invention, the operation will be described with reference to FIG. 1 in conjunction] with Fig. 2.

From the dough storage container 1, a dough piece IO is discharged by means of Austraghilfe 2 _f when the pressure piston 3 has reached its rear ummpunktpunkt. The dough piece 10 is pressed into the supply channel 7 from the pressure piston 3. The trapped in Zuführkenal 7 air can escape via the controlled venting and venting valve IC. If the operating pressure (ca, 0.2 tr.Pa) is sufficient in the feed channel 7, the controlled slide 6 opens and the dough can flow into the pressure chamber 4. The bottom uer pressure chamber 4 forms a continuously rotating metering drum 9 "This metering drum 9 is fitted longitudinally and transversely with sub-chambers 13. If a series of subchambers 13 reaches the area of action of the pressure chamber 4, then the dough which is under a constant pressure penetrates into the subchambers 13.

An adjustable, not shown stop limited according to the desired piece mass the penetration depth "Outside the sphere of action of the pressure chamber 4 causes a likewise not shown stop the ejection process by the ejection piston 8, the pressure piston 3 is a constant thrust. The Teigmengb flowing from the plunger 3 into the pressure chamber 4 entsprichc the amount of dough, which was taken through the dough portion Xl wire. During the press-in of dough by the pressure piston 3, the pressure compensation chamber 5 is filled with dough. If the pressure piston has reached the front deflection point, the slide 6 separates the feed channel 7 from the pressure roller 3r 4. During the refilling of the refill, the quantity of dough required for dosing is removed from the pressure compensation chamber 5 at a low pressure drop (approx. 10 %) . During the return stroke of the pressure piston 3, a ventilation of the feed channel 7 takes place through the ventilation valve 12, so that the pressure difference on the slide 6 can be kept as low as possible.

Claims (1)

Patentansprucn Dough dividing machine with partial chambers and ejection piston consisting of a ι: β , a Teigvorrs tsbehälter. Discharge that ,, are angnordnet below the Teigvorratsbehälters , a feed channel, the one <Feeder, , a slider and , a ventilation valve are assigned, characterized in that «A pressure chamber (4)., Between the slide (6) and the continuous rotating dosing drum (9) is arranged and connected to • a fedsrbelasteten pressure compensation chamber (5), H ι tr ((j) 1 Jcίι