Plastic article or earthenware shaping or treating: apparatus – Sets of press couples comprising registering female mold...
Patent
1990-09-13
1992-10-27
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Sets of press couples comprising registering female mold...
99462, 425236, 425335, 425373, B29C 4308
Patent
active
051587858
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to an apparatus for kneading of portioned dough pieces. The apparatus has a frame in which a drum is bearingly supported which continuously rotates around a horizontal axis, and which is provided on its periphery with receiving openings for the dough pieces. A kneading tool is bearingly supported on a carrier member which preferably is disposed above the drum, which kneading tool is provided with a recess which during the kneading process executes a circular movement relative to the neighboring receiving opening and in addition to this movement is taken along with the peripheral movement of the drum during the kneading process.
2. Description of the Prior Art
In a known apparatus disclosed in U.S. Pat. No. 1,960,367, the kneading tool is a plate carried by the carrier member which is formed as a swivel arm. The carrier member is swivelable around the axis of the drum and is swivelled together with the continuous movement of the drum from a starting position to an end position, the kneading process being effected during the swivel motion. As soon as the end position is reached, the swivel arm is led back again to its starting position under the action of a spring. Such an apparatus has the advantage that a relatively large amount of time is at the disposal for the kneading process so that the kneading result is sufficient. However, there is the disadvantage that the carrier member is primarily by impact returned to its starting position, with the result that disturbing machine noise is created, and impact-like stresses imparted to the machine may result in early wear or breakage of the elements. A further disadvantage is that a portion of the driving power of the machine is needed to tension the spring which after release returns the swivel arm back to its starting position, which means that a portion of the power expenditure is needlessly lost.
SUMMARY OF THE INVENTION
An object of the invention is to provide an improved apparatus wherein the known disadvantages of the prior art devices are avoided and the kneading result is maintained or even increased whereby the duration of life of the apparatus is substantially increased and machine noise is decreased when compared with the known prior art construction.
According to the present invention, the kneading tool is a band provided with a plurality of recesses, which band is driven for revolution in a direction of rotation of the drum so that one of its recesses is always disposed opposite to a receiving opening of the drum. The band is led over at least two deflecting points disposed on the carrier member and spaced apart from each other in a peripheral direction of the drum, preferably over guide pulleys, and is driven to a circular kneading motion of its recess relative to the receiving opening of the drum. The carrier member is slidably retained in the frame in a direction perpendicular to the running direction of the band. By the revolution motion of the band, a new recess of the band is presented for each subsequent receiving opening of the drum for effecting the kneading process without the requirement that the band has to be returned to its starting position as is necessary with the carrier of the prior art construction.
The respective effective recess of the band runs together with its cooperating receiving opening of the drum and executes relative to the receiving opening a circular motion necessary for the kneading process. The recess remains effective substantially until the band is guided over the subsequent deflecting point (as seen in a direction of rotation of the drum) and thereby the band with its recess is removed from the circumference of the drum. It is necessary to make the carrier member shiftable in a direction perpendicular to the axis of the drum or to the direction of movement of the band in order to allow the circular motion of the band.
According to the present invention, the circular motion could be achieved by making the carrier member of the band sh
REFERENCES:
patent: 1960367 (1934-05-01), Bellingroth
patent: 2812729 (1957-11-01), Bahlsen
patent: 2961735 (1960-11-01), Mohring
patent: 3689280 (1972-09-01), Werner
patent: 4768942 (1988-09-01), Sola
Chiesa Richard L.
VanOphem Remy J.
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