Patent ID: 6245199
Filing Date: 2001-06-12
Classification: D21J

Abstract:
An automatic pulp-forming mold-releasing machine at least comprising:a frame body having two parallel extending guide rails at top sides thereof, having two transport belt laterally and parallel extending along said guide rails at two sides of the central part thereof, two bearing blocks corresponding to said guide rails while a vent pipe is disposed in the middle of said bearing block in order to connect to the external;a lower mold disposed inside of said frame body, having protruding forming parts at upper and lower sides which include air vents on the surface thereof for drawing and supplying air, and the middle section thereof is laterally provided with a ventilation airway, the center of which includes a partition by which said ventilation airway is divided into an upper and a lower airways respectively connected to forming parts of the top and bottom sides, and said lower mold having a shaft respectively outwards laterally disposed at two sides of the center thereof while said two shafts are connected to said upper and lower ventilation airways, penetrate through respective bearings pre-arranged in bearing blocks, are connected to vent pipes, and are respectively connected to a rotation driving device so that said lower mold can be rotated on said shafts;a pulp container disposed under said lower mold and upwards and downwards liftable by means of a plurality of lifting devices at two sides thereof;two upper molds respectively located by two lifting devices on two slide holders which are placed slideable on said two guide rails, and said upper molds having concave forming parts at the bottom side, including air vents on the surface thereof for drawing and supplying air, and said upper molds driven by a lateral shifting device so that two slide holders can be slid on said guide rails while said upper molds is driven by a lifting device to bring said upper molds in a reciprocating lifting movement;characterized in that said pulp container is lifted to be adjacent to the bottom side of said lower mold while said shafts connected to said forming parts at bottom side begin to draw air so that the pulp can be absorbed and attached on the surface of said forming parts; thereafter, said upper mold is turned over at 180.degree. to let the face of said absorbed and attached pulp upwards while said forming parts of said upper mold are driven by said shifting device to press on said pulp; thereafter, when said pulp is dehydrated by pressing and formed, said upper mold begins to draw air to absorb said formed pulp which is carried by lateral shifting device to the upper side of said transport belt while said upper mold blows said formed pulp to fall on said transport belt so that the rapid and effective pulp-forming and mold-releasing action can be achieved by the reciprocating turning upside down of said lower mold in coordination with the reciprocating lateral shift of said upper mold.