Abstract

An automatic forming machine for pulp molding product is disclosed. Through an innovative design to ensure stable rise and fall of the hot pressing lower mold, the hot forming zone is optimized. The invention has the following characteristics: On the bottom side of the hot pressing lower mold, a supporting arm is extended downward in each of the four directions. On the supporting arm, a sliding block is fixed. A penetrating hole slot is configured on a base plate at a lower position inside the working space of the hot forming zone at each of the positions corresponding to the supporting arms. The adjacent outer sides of the base plate corresponding to the supporting arms are respectively fixed with a supporting frame. The column surfaces of the supporting frame on the front and rear side are respectively connected with a supporting plate body. The supporting plate body is fixed with a guide rail. The sliding block on the supporting arm is sleeved on the guide rail, so that when the hot pressing lower mold rises or falls, the sliding block can rise or fall simultaneously along the guide rail, maintaining balanced rise and fall of the hot pressing lower mold. Thus, the hot pressing lower mold and the hot pressing upper mold can clamp correctly to enhance product quality.

IPC Classes  ?

• D21J 3/00 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds

Abstract

A forming structure for the internal snap ring of a pulp molded cup lid is disclosed. When manufacturing the pulp molded cup lid, the pulp suction mold sucks a pulp layer and sends it to a hot press upper mold for clamping and squeezing to shape the pulp layer into a primary blank, meanwhile producing an internal snap ring part on the primary blank. After subsequent hot pressing and shaping, the finished product of a pulp molded cup lid will have an integral internal snap ring structure. Comparing with the prior art, the present invention omits a second operation (processing), and the preparation of a mold for the second operation (processing). Therefore, the present invention can save manufacturing cost and time.

IPC Classes  ?

• B65D 43/06 - Removable lids or covers having a peripheral channel embracing the rim of the container
• D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds

Abstract

A paper pulp molded cup lid (1). The outer edge of the cup lid is provided with an annular cover edge extending downwards. The annular cover edge comprises an annular lower side wall (14) extending vertically downwards. One end of the annular lower side wall is connected to the cup lid by means of an arc-shaped sealing part (13), and the other end of the annular lower side wall is provided with a lower inclined annular side wall (15) which extends downwards and is arc-shaped. The inner side surface of the lower inclined annular side wall is provided with an arc-shaped concave surface (17). When two cup lids are stacked, a cambered concave surface of a lower inclined annular side wall of an upper cup lid is fitted to a cambered outer wall of a cambered sealing portion of a lower cup lid, such that cup lids are easily stacked in order, and are not prone to falling or moving radially.

IPC Classes  ?

• B65D 43/03 - Removable lids or covers nestable or stackable
• B65D 43/06 - Removable lids or covers having a peripheral channel embracing the rim of the container

Abstract

An automatic forming machine for a pulp molding product and a manufacturing method therefor. During manufacturing, a slurry suction mold immersed in a slurry box suctions a slurry to form a slurry layer, and then ascends to leave the slurry box to assemble with an upper hot pressing mold, which moves in from an external space, for extrusion to form a preform; then the slurry suction mold descends into the slurry box for a second round of slurry suction; the upper hot pressing mold suctions the preform and returns in a reverse direction to an original position; then a lower hot pressing mold ascends for assembling to hot press and shape the preform to form a pulp molding product, and the lower hot pressing mold suctions the pulp molding product and descends to the original position; and a material receiving mechanism then suctions the pulp molding product and leaves the lower hot pressing mold for separate collection. The automatic forming machine for a pulp molding product can perform, after slurry suction, rapid cold extrusion for dehydration and rapid hot-press forming, thereby increasing a manufacturing speed, shortening a production cycle, and reducing manufacturing cost.

IPC Classes  ?

• D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds
• D21J 1/04 - Pressing

Abstract

Provided is a mechanism for forming an inner inverted snap-fit ring of a paper-molded cup lid. During manufacturing of the paper-molded cup lid, when a sucked pulp layer is fed by a pulp suction mold into an upper hot press mold for extrusion by mold closing to extrude the pulp layer into a primary blank, a part for the inner inverted snap-fit ring is also formed on the primary blank by means of extruding, and after a subsequent hot press shaping operation, an inner inverted snap-fit ring structure is formed on a finished product of the paper-molded cup lid. A secondary operation and a mold for the secondary operation are not needed, so that manufacturing costs and the manufacturing time can be reduced.

IPC Classes  ?

• D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds
• B65D 47/06 - Closures with discharging devices other than pumps with pouring spouts or tubesClosures with discharging devices other than pumps with discharge nozzles or passages
• B65D 43/06 - Removable lids or covers having a peripheral channel embracing the rim of the container

Abstract

An automatic molding machine for pulp-molded products. The automatic molding machine is used for improving the stability of the ascending and descending of a hot-pressing lower mold (43) in a hot-press shaping region. Supporting arm bodies (431) respectively extend downwards from surrounding bottom faces of the hot-pressing lower mold (43); a sliding block (432) is fixedly provided on each supporting arm body (431); a passage hole slot (441) is provided, at a position which corresponds to the supporting arm body (431), on a base plate (44) below the interior of an action space of the hot-press shaping region; a supporting frame (45) is locked on the base plate (44) and corresponds to an adjacent outer side of the supporting arm body (431), which is divided into two sides; a supporting plate body (451) is connected to either a front cylindrical surface or a rear cylindrical surface of the supporting frame (45); a guide rail (46) is locked on the supporting plate body (451); and the sliding block (432), which is on the supporting arm body (431), penetrates and sleeves the guide rail (46), so that when the hot-pressing lower mold (43) ascends and descends, the sliding block (432) synchronously ascends and descends along the guide rail (46), so as to maintain balanced ascending and descending of the hot-pressing lower mold (43), so that the hot-pressing lower mold and a hot-pressing upper mold are correctly jointed together, so as to improve the product quality.

IPC Classes  ?

• D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds

Abstract

An automatic forming machine for a paper-plastic product and a manufacturing method therefor. During manufacturing, a slurry suction mold (20) immersed in a slurry box (10) suctions a slurry to form a slurry layer, and then ascends to leave the slurry box (10) to assemble with an upper hot pressing mold (30, 50), which moves in from an external space, for extrusion to form a preform; then the slurry suction mold (20) descends into the slurry box (10) for a second round of slurry suction; the upper hot pressing mold (30, 50) suctions the preform and returns in a reverse direction to an original position; then a lower hot pressing mold (40, 60) ascends for assembling to hot press and shape the preform to form a paper-plastic product, and the lower hot pressing mold (40, 60) suctions the paper-plastic product and descends to the original position; and a material receiving mechanism (70, 80) then suctions the paper-plastic product and leaves the lower hot pressing mold (40, 60) for separate collection. The automatic forming machine for a paper-plastic product can perform, after slurry suction, rapid cold extrusion for dehydration and rapid hot-press forming, thereby increasing a manufacturing speed, shortening a production cycle, and reducing manufacturing cost.

IPC Classes  ?

• D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds

Abstract

A manufacturing mold and a manufacturing method for forming a concave arc on a paper-plastic cup cover, and a finished product. The claimed manufacturing method is implemented by means of the designed manufacturing mold, and comprises using a paper-plastic cup cover (1) on which no concave arc (14) has been formed to form a finished product in which the paper-plastic cup cover (1) has a concave arc (14). The manufacturing mold is mainly internally provided with a rubber ring (62), and during processing, the rubber ring (62) is driven to abut against a side surface of the paper-plastic cup cover (1) on which no concave arc (14) has been formed, so that an area having a concave arc (14) is rapidly created on the paper-plastic cup cover (1).

IPC Classes  ?

• D21J 3/00 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds

Abstract

A mould for an anti-scalding paper-plastic container, comprising a slurry suction mould, a hot press upper mould, and a hot press lower mould, the slurry suction mode being used for being immersed in a slurry box and undergoing a slurry suction action such that a slurry layer is adsorbed onto the slurry suction mould, the slurry layer first being extruded and dehumidified by a separate cold press mould to form a primary blank, and then being transferred by being carried by the hot press upper mould; then the hot press upper mould and hot press lower mould are closed to extrude the primary blank in order to shape the entire shape into the desired size, the primary blank also being dried into a paper-plastic container by means of the hot press action of closing the hot press upper mould and the hot press lower mould.

IPC Classes  ?

• B65D 3/28 - Other details of walls
• B31B 50/59 - Shaping sheet material under pressure
• D21J 3/00 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
• A47G 23/04 - Containers with means for keeping food cool or hot

Abstract

An anti-scald paper-plastic container (2) manufactured by using a paper-plastic product manufacturing technology, comprising a body (21) wound in a circle and a bottom sheet (22) connected at the bottom; the body (21) and the bottom sheet (22) define a containing space (23), a plurality of vertically arranged anti-scald protruding edges (211) which protrude outward from the body (21) are formed on at least two symmetrical surface bodies on the outer surface of the body (21); the shared top of the body (21) and the anti-scald protruding edges (211) is formed into a solid top edge (25); at least three supporting legs (24) are integrally formed on the bottom surface of the body (21) in an equally surrounding manner, the supporting legs (24) are formed by means of wide and thick bodies, an inner space (240) is formed inside each supporting leg (24), the inner space (240) is in communication with the containing space (23), ventilation spaces (241) in communication with the outside are formed outside the side edges of the supporting legs (24), and the inner edges of the supporting legs (24) are connected to each other and are slightly recessed to form the bottom sheet (22).

IPC Classes  ?

• A47G 19/22 - Drinking vessels or saucers used for table service
• A47G 19/02 - Plates, dishes or the like

Abstract

Disclosed is a paper-plastic cup lid (1). The paper-plastic cup lid has a covering flange (17) that can reliably cover a restricted opening flange of a cup body and is provided with a cup top face (15) with an offset position. A drinking rim (20) is provided on a high flat stage (14) so as to realize the functions of preventing a liquid inside the cup body from overflowing, facilitating moving around while carrying a stacked takeout paper cup, and slowing the flowing of a drink at the drinking rim.

IPC Classes  ?

• B65D 41/04 - Threaded or like caps or cap-like covers secured by rotation