Paper making and fiber liberation – Apparatus – Foraminous forming mold for discrete articles
Reexamination Certificate
1999-09-23
2001-06-12
Silverman, Stanley S. (Department: 1731)
Paper making and fiber liberation
Apparatus
Foraminous forming mold for discrete articles
C162S382000, C162S387000, C162S391000, C425S085000
Reexamination Certificate
active
06245199
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an automatic pulp-forming mold-releasing machine, and more particularly, to a machine having a double-sided turnable lower mold to press and to release mold in coordination with two upper molds while the formed pulp is placed on the pre-arranged transport belt in order to reach the goal of rapid and automatic production.
2. Description of the Prior Art
As shown in
FIG. 1
, the conventional pulp-forming mold-releasing machine is provided with a pulp container
51
fixed in the frame body
5
and containing pulp raw material. An vertically liftable upper mold
52
driven by an upper mold driving device
521
is disposed over the pulp container
51
and includes a plurality of protruding forming parts
522
at the bottom side thereof having a plurality of air vents on the surface thereof through which the suction or the pushing force is created when the air flows in and flows out. A laterally movable table
531
is disposed between the pulp container
51
and the upper mold
52
and includes a plurality of mold seats
53
at one side thereof which are moved with the mold seats
53
to the descending route of the upper mold
52
. The upper mold
52
contains a vertically liftable die casting
54
driven by a die casting driving device
541
and disposed at one side thereof. The die casting
54
includes air-passing vents on the surface thereof.
The whole operation is performed as follows: The upper mold
52
is driven by the upper mold driving device
521
to descend into the pulp container
51
while a vacuum suction is created in the air vents on the surface of the forming parts
522
to absorb pulp of certain amount. Thereafter, the upper mold driving device
521
drives the upper mold
52
to ascend while the movable table
531
is laterally so shifted that the mold seat
53
is located under the upper mold
52
, and the air vents on the surface of the forming parts begins to blow air so that the slightly formed pulp on the surface thereof falls into the mold seat
53
, and then the movable table returns to the original position so that the mold seat
53
is shifted under the die casting
54
. Driven by the die casting driving device
541
, the die casting
54
descends to press on the mold seat
53
so that the pulp therein is dehydrated and formed. Thereafter, the air vents on the surface of the die casting
54
draw air so that the formed and dehydrated pulp is absorbed to rise with the die casting
54
. At this time, the movable table
531
is laterally shifted to the lower side of the upper mold
52
again (the upper mold
52
absorbs pulp of certain amount by means of the forming parts
522
again) in order for the mold seat
53
to receive the pulp supplied by the upper mold
52
. Meanwhile, the air vents on the surface begin to blow air so that the formed and dehydrated pulp falls on another side of the movable table
531
and is transported with the return of the movable table
531
to the next working procedure (e.g. wind drying etc.) for further processing.
Though the above-mentioned construction can reach the basic automatic processing, the whole operation procedure is too complex. Additionally, each processing step will take certain time to create a best production effect. Accordingly, the production efficiency is too low to meet the economic requirement and the whole production procedure is seriously influenced.
SUMMARY OF THE INVENTION
It is a main object of the present invention to provide an automatic pulp-forming mold-releasing machine comprising a lower mold disposed inside of a frame body, capable of reciprocatingly turning upside down and having protruding forming parts at top and bottom sides thereof which include air vents on the surface thereof capable of drawing and blowing air, and two synchronically reciprocatingly laterally shifting slide holders disposed at the top of the frame body and having lifting devices to drive the upper molds to move upwards and downwards, and air-drawing and air-blowing vents provided inside of the upper molds, and a liftable pulp container disposed under the lower mold of the frame body, characterized in that the pulp is absorbed to the forming parts at the bottom side of the lower mold; thereafter, it turns upside down to the top side, after dehydrated by the down-pressing of the upper mold, the formed pulp is absorbed upwards and lifted to be separate from the mold while the upper mold is laterally slid by the slide holder in position so that the mold-releasing formed pump falls on the transport belt in order to achieve a rapid, effective and automatic pulp-forming mold-releasing effect.
REFERENCES:
patent: 2234979 (1941-03-01), Randall et al.
patent: 2494743 (1950-01-01), Chaplin
patent: 5971169 (1999-10-01), Bodary et al.
patent: 6048440 (2000-04-01), Baker
Bacon & Thomas PLLC
Hug Eric
Silverman Stanley S.
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