摘要:
An injection molding device, includes a first mold which has an injection material channel and a second mold defining a first cavity in which a first product part can be injection-molded. The first mold can be moved in a direction different from the mold opening direction. In this manner, especially two-component products can be produced, the first mold together with the first product part being moved to a third mold section with which a second cavity for injection of another injection material is defined.
摘要:
A rotary plate is rotatably supported with respect to a stationary base using an R-guide, and the weight of the rotary plate and a mold mounted to the rotary plate is also supported by the R-guide in addition to a bearing. Therefore, a moment and a vertical downward load acting on the bearing of the rotary plate can be reduced. A block of the R-guide is fixed with respect to the rotary plate side through a disc spring. Therefore, while the rotary plate is rotating, the elastic force of the disc spring causes the rotary plate to separate from the stationary base by a space, which reduces the rotational resistance of the rotary plate. During mold clamping, respective pressure-receiving surfaces of the rotary plate and the stationary base contact each other against the elastic force of the disc spring, which enables reliable transfer of a mold clamping load to the stationary base.
摘要:
An in mold decoration process includes inserting a film with decorations into a first mold tool cavity side. The first mold tool cavity side is then engaged with a first mold tool core side, and the film in the first mold tool cavity side undergoes a high-pressure heat forming procedure. After the forming procedure, the film is formed with a cavity and maintained in the first mold tool cavity side. The first mold tool cavity side is then disengaged from the first mold tool core side and engaged with a second mold tool core side, and the film undergoes an injection molding procedure. The cavity is injected with a molten resin. After the molding procedure, the molten resin becomes a plastic component bound to the film to form a semi-finished product. The semi-finished product is then ejected out of the first mold tool cavity side and trimmed to form a finished product.
摘要:
A molding die and a method for molding a molded article including a foam layer made up of faces extended in a plurality of directions are provided, by which all of the faces can grow up to a predetermined expansion ratio or more. To this end, a molding die 1 includes a stationary die including a main die 2 and a slide die 3 movable relative to the main die 2, and a movable die 4. The slide die 3 partially faces a cavity C and can move in a direction (Y direction) different from a die clamping/die opening direction (X direction). When a foam layer a2 made up of a face a21 orthogonal to the die clamping/die opening direction and a face a22 other than the face a21 grows in the cavity C, at least the slide die 3 moves in Y direction, whereby both of the faces a21 and a22 of the foam layer a2 can grow to satisfy a predetermined expansion ratio.
摘要:
A method for forming an enclosure for enclosing internal electronic components of an electronic device is provided, which comprises: performing a first injection molding process, the first injection molding process forming at least a first wall of the enclosure; allowing the at least a first wall of the enclosure to solidify; thereafter performing a second injection molding process, the second injection molding process forming at least a second wall of the enclosure, the at least a second wall of the enclosure fusing with the at least a first wall of the enclosure during the second injection molding process, the at least second wall of the enclosure forming at least one different side of the enclosure than the at least first wall of the enclosure; and allowing the at least a second wall of the enclosure to solidify, the at least a second wall of the enclosure being integrally formed with the at least a first wall of the enclosure to thereby form a single-piece multi-walled enclosure.
摘要:
This invention relates to methods and apparatus for making articles made of polyester, preferably polyethylene terephthalate (PET), having coated directly to at least one of the surfaces thereof one or more layers of thermoplastic material with good gas-barrier characteristics. In one preferred method and apparatus, preforms are injection molded, barrier-coated immediately thereafter, and remain on a mold portion for a time to speed cooling of the completed preform. Preferably the barrier-coated articles take the form of preforms coated by at least one layer of barrier material and the containers are blow-molded therefrom. Such barrier-coated containers are preferably of the type to hold beverages such as soft drinks, beer or juice. The preferred barrier materials have a lower permeability to oxygen and carbon dioxide than PET as well as key physical properties similar to PET. The materials and methods provide that the barrier layers have good adherence to PET, even during and after the blow molding process to form containers from preforms. Preferred barrier coating materials include poly(hydroxyamino ethers).
摘要:
The present invention relates to a panel-shaped molded product having a laminated structure which is produced from a resin and used for side doors, back doors, hoods, roofs, etc., and exhibits a more excellent finishing accuracy without occurrence of bleed-out along an inner periphery of a frame part and fine distortions on a design part. The panel-shaped molded product of the present invention is a molded product having a laminated structure which is obtained by injection-molding the frame part (2) on one surface of the plate-shaped design part (1) wherein an inner peripheral portion (4) of the frame part (2) is closely attached to the design part, and has a thickness changing region where a thickness of the frame part is reduced toward the side of a center of the frame part such that a ratio between a width of the thickness changing region and the thickness of the frame part (2), and a ratio between a width of the thickness changing region and a width of the frame part (2) are respectively adjusted to satisfy specific relationships.
摘要:
The invention relates to an enclosure, particularly a housing for a mobile telephone, comprised of a first enclosure base body and of a second enclosure base body with a seal made of a sealing material. This seal is joined in a fixed manner to the first enclosure base body and sealingly rests against a second edge of the second enclosure base body. The seal is made of an elastically deformable sealing material. The invention also relates to a method for producing a housing part for a mobile telephone provided with an elastic seal according to the two-color injection molding method.
摘要:
A spike mold structure includes a first male mold base having a plurality of male molds and at least one firing pin, and a female mold base having a first fixing board, a second fixing board, a plurality of outer female molds and inner female mold. The second fixing board has at least one sliding rod, and the sliding rod has an actuating block. One surface of the first fixing board has a plurality of convex blocks. A plurality of concave slots are located at the surface of the sliding rod. The thimbles push the actuating block to make the sliding rod slidingly move so that the first fixing board and second fixing board are closely embedded or have a gap. Therefore, there is a displacement between the outer and the inner female mold. The spike mold structure is used to mold a bi-colored spike having increased strength.
摘要:
The invention provides a vertical injection molding machine capable of periodically feeding lubricant to sliding portions of the turntable to maintain a substantially constant turntable slide resistance and also capable of determining the position of the repeatedly revolving turntable. During operation of a vertical injection molding machine 1, lubricant is periodically fed from a pump 30 to slide portions S of the revolving turntable 14 so as to maintain the slide resistance of the sliding portions S substantially constant. Further, a motor control means 51 resets the count of pulses output from an encoder 29 at a timing at which the number of revolutions of a servomotor 25 and the number of revolutions of the turntable 14 are integers, so that it is possible to prevent pulse errors from accumulating even when the turntable 14 is revolved many times in the same direction.