A needle guard grip device may include a body extending from a first end to a second end along a central longitudinal axis of the body. The body may include a plurality of ribs extending perpendicularly to the central longitudinal axis. The plurality of ribs may include a first set of longitudinally spaced ribs disposed on a first side of the central longitudinal axis, and a second set of longitudinally spaced ribs disposed on a second side of the central longitudinal axis that is opposite of the first side. Moving along the central longitudinal axis, ribs of the first set of longitudinally spaced ribs may alternate with ribs of the second set of longitudinally spaced ribs.

A mold device includes a primary mold and a secondary mold. The primary mold includes a cavity mold and a primary core mold. The primary mold is configured to inject a first resin material into a first cavity to mold a primary molded product, the first cavity being formed by clamping the cavity mold and the primary core mold. The secondary mold includes the cavity mold and a secondary core mold. The secondary mold is configured to inject a second resin material into a second cavity to stack mold a secondary molded product on a peripheral edge of the primary molded product. The second cavity is formed by clamping the cavity mold and the secondary core mold. The cavity mold is configured to hold the primary molded product. The cavity mold includes a primary molded product holding portion configured to project into and retract from the first cavity, on a parting line of the primary mold. The secondary core mold includes a slide portion configured to project into and retract from the second cavity on a parting line of the secondary mold. The slide portion having a shape that complements the primary molded product holding portion. At the time of mold opening in primary molding, the primary molded product holding portion protrudes into the first cavity locks an end surface of the primary molded product to hold the primary molded product in the cavity mold. At the time of mold clamping in secondary molding, the primary molded product holding portion retracts from the second cavity and the slide portion slides relative to the primary molded product holding portion to protrude into the second cavity, to define the second cavity.

For in mold spraying, a double-inclined mixing nozzle is connected obliquely and fixedly with a side surface of a third half-mold through a lateral sealing structure and connected with a side surface of a first half-mold in an inclined and sealing manner, side faces of a first half-mold and the third half-mold are respectively provided with installation inclined surfaces. A lateral sealing structure includes a mounting plate and a sealing member. The sealing member is sleeved on the double-inclined mixing nozzle and is in transition fit with the double-inclined mixing nozzle and the mounting plate respectively. A butt sealing groove provided on the installation inclined surface of the first half-mold and is in sealing fit with the mounting plate.

A rotary injection mold for an elastic housing of a neckband headset includes an upper mold core and a lower mold core, the lower mold core is provided with a main installation cavity and a control end installation cavity, the main installation cavity is installed with a rotary mold core having two half-ring molding channels. When the upper mold core and the lower mold core are closed, a primary injection cavity is formed, for molding a supporting member supporting a neckband; a secondary injection cavity is formed, for molding a strip member wrapping the neckband. The control end installation cavity is provided with two control end injection molds for molding a control end elastic casing, and the control end injection cavities are hermetically communicated with the secondary injection cavity. By the invention, an integrated elastic housing is molded to wrap the neckband headset, to improve the manufacturing efficiency.

Proposed is an apparatus and method for manufacturing automotive interior materials. The apparatus includes a first mold unit provided with a first molding surface and a gate disposed on the first molding surface, wherein a skin is set on the first molding surface. The apparatus further includes a second mold unit provided with a second molding surface facing the first molding surface, and configured to provide an opening exposing an edge of an edge portion of the set skin along a periphery between the first molding surface and the second molding surface when the second mold unit is combined with the first mold unit, and a sealing block provided with a tip portion disposed along the opening when the first mold unit and the second mold unit are combined.

The disclosure relates to a plastic faucet body and a molding tool. The faucet body includes a left water inlet pipe and a right water inlet pipe, wherein a left valve seat installation recess is formed in the left water inlet pipe and a right valve seat installation recess is formed in the right water inlet pipe. A connecting cross-beam is disposed between the left water inlet pipe and the right water inlet pipe, wherein the connecting cross-beam is provided with a water outlet and a middle water channel is formed within the connecting cross-beam. The middle water channel includes a left water inlet channel and a right water inlet channel, wherein the left water inlet pipe and the water outlet are connected with the left water inlet channel, and the right water inlet pipe and the water outlet are connected with the right water inlet channel, and the left water inlet channel and the right water inlet channel are arc-shaped or U-shaped.

Apparatuses and methods for attaching a hydrogel film to a product. The hydrogel film may be produced by injecting a monomer solution into a mold, polymerizing the monomer solution in the mold to produce a hydrogel sheet, and cutting the hydrogel sheet to produce one or more hydrogel films. The process may include attaching a hydrogel film of the one or more hydrogel films to a product. Attaching the hydrogel sheet to the product may include applying an adhesive onto the product, placing a first edge of the hydrogel film in the adhesive on the product, and placing a second edge of the hydrogel film in the adhesive on the product.

An injection molding apparatus and a method of injection molding are disclosed. The injection molding apparatus includes a mold sub-platen assembly having a first sub-platen that is attachable to a stationary side portion of a mold base which is mountable to a stationary platen of an injection molding machine. The mold sub-platen assembly also includes a second sub-platen that is attachable to a moving side portion of the mold base that is mountable to a moving platen of the injection molding machine. The method includes attaching a set of guide pins to a mold sub-platen at locations that correspond to guide openings in a mold and installing the mold on the mold sub-platen such that the guide pins extend through guide openings in the first half of the mold and into guide openings in a second half of the mold.

The present disclosure relates to a method of manufacturing a model car body, including preparing a steel mold comprising a core plate with an inner core, a top plate and at least two side plates; attaching at least one pre-fabricated plastic block to a side of the inner core of the core plate; combining the core plate, the top plate and the at least two side plates with each other, wherein a cavity is formed among the top plate, the side plates, the inner core of the core plate and the at least one pre-fabricated plastic block; injecting melted plastic material into the cavity, wherein the melted plastic material is filled with the cavity and the at least one pre-fabricated plastic block is encased by the melted plastic material; solidifying the melted plastic so as to form the model car body, wherein the at least one pre-fabricated plastic block is integrated with the plastic model car body; separating the core plate, the top plate and the at least two side plates from each other; and releasing the model car body with the at least one pre-fabricated plastic block from the mold.

Embodiments of the invention provide a self-sufficient sequential locking device and an injection molding tool. The self-sufficient sequential locking device comprises an elongate body having two ends which are provided with first and second inner engagement elements respectively; first and second outer engagement elements selectably engageable with the first and second inner engagement elements respectively for alternatively establishing a first or a second connection by rotation of the elongate body between a first position in which the first connection is secured and the second connection is simultaneously releasable, and a second position in which the second connection is secured and the first connection is simultaneously releasable, and first and second locking element respectively cooperable with the first and second inner engagement element for securing the first connection when the elongate body is in the first position or the second connection when the elongate body is in the second position.