B29C45/332

A COMPRESSION MOULDING METHOD AND APPARATUS
20230405888 · 2023-12-21 ·

A method for forming an object comprises the steps of: providing a mould comprising a first and a second mould part opposite to each other, a part selected from between the first mould part and the second mould part comprising a plurality of sectors for shaping a lateral portion of the object, the sectors delimiting a variable-volume forming region of the mould; positioning a dosed amount of mouldable material between the first and second mould parts while the mould is in an open position; displacing the first mould part and the second mould part towards each other in a moulding direction, to define between the first mould part and the second mould part a closed forming chamber bringing into contact respective abutment surfaces of the first mould part and the second mould part, the abutment surfaces extending transversely to the moulding direction.

MULTI-MOLD BLOCK DRIVE DEVICE AND INJECTION MOLDING MACHINE HAVING THE MULTI-MOLD BLOCK DRIVE DEVICE
20230405894 · 2023-12-21 ·

A multi-mold block drive device includes a guide seat having a plurality of spaced-apart guide holes extending through inner and outer peripheral surfaces thereof, a plurality of speed reduction drive units each including a speed reducer driven by a servo motor and having an eccentric shaft, and a plurality of mold locking units each connected between one of the guide holes and a corresponding speed reduction drive unit. Each mold locking unit includes a pivot shaft, a linkage disposed between the pivot shaft and the corresponding guide hole, and a guide rod pivoted to the linkage. The linkage includes a crank driven by the eccentric shaft, a first link arm pivoted between the crank and the pivot shaft, and a second link arm pivoted between the crank and the guide rod. An injection molding machine having the multi-mold block drive device is also disclosed.

INJECTION MOULD FOR PRODUCING COMPLEX MOULDED PARTS FROM PLASTIC
20210046682 · 2021-02-18 · ·

An injection mould having a first mould half (17) and a second mould half (18) which can be displaced relative to the first in a first direction (z). At least one of the mould halves has a slider arrangement (1) for forming a mould cavity (15). The slider arrangement (1) includes at least two sliders (2) which are moveable relative to one another between a closed and an open position and which are arranged so as to be displaceable with respect to a component (3), adjacent to the sliders (2), of the associated mould halves (17, 18) by means of first and second guide means (6, 7) respectively. A slider drive (4) is used to displace the sliders (2) between the open position and the closed position.

COLD RUNNER BLOCK
20210053263 · 2021-02-25 · ·

The invention relates to a cold runner block in a vertically operating injection molding machine for processing elastomer materials with an upper fixed molding platen and a molding platen arranged thereunder which is movable relative to the fixed molding platen, between which a molding tool having a plurality of mold cavities is arranged and wherein the cold runner block is arranged between the fixed molding platen and the molding tool, the cold runner block containing a distribution plate having the cold runners and containing a nozzle plate with nozzles each assigned to one of the plurality of mold cavities, which is characterized in that the distribution plate formed from a plurality of distribution strips (10-40) is arranged on a retaining plate (2), which can be fastened to the fixed, feed-side molding platen in such a way that each distribution strip (10-40) is connected by means of two bolts (3) to the retaining plate (2) in that the head (5) of each bolt (3) facing away from the distribution strip (10-40) forms a retaining element which is T-shaped in section, the retaining element being displaceably guided in the direction transverse to the distribution strip's longitudinal axis in guide rails (50) which are formed in the retaining plate (2) and are designed in section to complement the bolt head (5).

FAUCET MAIN BODY STRUCTURE AND INJECTION MOLDING MOLD AND MOLDING METHOD FOR THE SAME
20210054948 · 2021-02-25 · ·

A faucet main body structure, an injection molding mold and a molding method are provided. A main body inner core is fixed in the injection molding mold by a new fixing method, ensuring that no additional positioning structure is required to be provided on the outer surface of the main body inner core, so that in the case that the main body inner core is subjected to over-molding, a main body injection-molded layer of the main body injection-molded part is enabled to closely attached to the main body inner core without causing gaps therebetween, which ensures that the faucet main body structure is not susceptible to water seepage, and prolongs the service life of the product.

Device for demolding parts and mold including the device

A device for demolding parts includes a slider for housing a figure insert for the molding of a negative of the part to be molded. The slider is associated with a push rod, which can move the slider to an ejection position of a part to be molded. The device also includes a gas cylinder for driving the displacement of the push rod. The device eliminates an inclined guide and a safety wedge, saving a great deal of work and focusing all the machining only on a punch plate.

Mold conveying guide device and injection molding machine
10857710 · 2020-12-08 · ·

There is provided a mold conveying guide device for use in replacement of a mold by conveying the mold into and out of a mold fixing position in an injection molding machine. A connecting arm is attached to the mold and projects in a direction in which the mold is conveyed into the mold fixing position. A guide roller is rotatably supported at a tip end portion of the connecting arm. The guide roller is configured to rotate while being in contact with a mold attaching surface of at least one of a fixed platen and a movable platen, and configured to guide the mold such that the mold can come close to or move away from the at least one of the fixed platen and the movable platen.

SLIDE PIECE DRIVING MECHANISM
20200324449 · 2020-10-15 ·

A slide piece driving mechanism includes a side surface guiding portion, a shaft portion, and stopper releasing means. The side surface guiding portion is disposed at a movable side mold to guide a side surface of a slide piece to be slidably movable. The shaft portion of a stopper is disposed at the side surface guiding portion. When the slide piece reaches an upper end position, the shaft portion engages with a stopper hole of the slide piece to prevent the slide piece from falling from the upper end position due to own weight. The stopper releasing means releases the engagement of the shaft portion of the stopper with the stopper hole to allow the slide piece from falling from the upper end position due to its own weight.

PLASTIC FAUCET BODY AND A DIE FOR MOLDING THE SAME
20200318749 · 2020-10-08 ·

The invention discloses a plastic faucet body and a molding tool thereof. The faucet body includes a left water inlet pipe (1) and a right water inlet pipe (2), wherein a left valve seat installation recess (11) is formed in the left water inlet pipe (1) and a right valve seat installation recess (21) is formed in the right water inlet pipe (2). A connecting cross-beam (3) is disposed between the left water inlet pipe (1) and the right water inlet pipe (2), wherein the connecting cross-beam (3) is provided with a water outlet (31) and a middle water channel is formed within the connecting cross-beam (3). The middle water channel includes a left water inlet channel (32) and a right water inlet channel (33), wherein the left water inlet pipe (1) and the water outlet (31) are connected with the left water inlet channel (32), and the right water inlet pipe (2) and the water outlet (31) are connected with the right water inlet channel (33), and the left water inlet channel (32) and the right water inlet channel are arc-shaped or U-shaped. The invention also discloses a molding tool of the plastic faucet. The faucet has good sealing performance and the plastic faucet body is integrally molded, such that the manufacturing process is simplified and the cost is reduced and the production efficiency is improved.

PLASTIC FAUCET BODY AND A DIE FOR MOLDING THE SAME

A plastic faucet body and a die for molding the same are disclosed in present invention. The plastic faucet body comprises a left water inlet pipe (1) and a right water inlet pipe (2), wherein a connecting cross-beam (3) is disposed between the left water inlet pipe (1) and the right water inlet pipe (2), the left water inlet pipe (1) and the right water inlet pipe (2) are embedded with a threaded copper pipe (4), respectively, the copper pipes (4) are formed integrally with the plastic faucet body by means of a single stage process and are in communication with the corresponding left water inlet pipe (1) and the right water inlet pipe (2), respectively.