31results about How to "Improve injection molding quality" patented technology

The invention provides an injection mold used for injection molding of a workpiece. The injection mold comprises an upper mold body, a lower mold body, a plastic inflow mechanism and a jacking material. The upper mold body comprises an upper mold base and an upper mold core arranged on the upper mold base. The lower mold body comprises a lower mold base and a lower mold core arranged on the lower mold base. The upper mold core and the lower mold core are matched to form a mold cavity. The plastic inflow mechanism comprises a wedge-shaped block, a plastic inflow sliding block and an angle pin. The wedge-shaped block is fixed to the upper mold base, the plastic inflow sliding block is arranged on the lower mold core in a sliding mode and matched with the inclined face of the wedge-shaped block, a plastic inlet is formed in the end, facing the mold cavity, of the plastic inflow sliding block, and therefore the plastic inflow sliding block can inject melted plastic into the mold cavity. The angle pin movably penetrates through the wedge-shaped block and the plastic inflow sliding block, the upper mold base can drive the wedge-shaped block and the angle pin to move away from the lower mold base together, the plastic inflow sliding block moves away from the mold cavity under the effect of the angle pin, and the jacking mechanism is movably arranged in the lower mold body and used for jacking the formed workpiece out of the mold cavity. The appearance quality of the workpiece obtained after injection molding is effectively improved through the injection mold.

The invention discloses a puncture core rod and a puncture device comprising the same. The puncture core rod comprises a tip end and at least two rod bodies, wherein the at least two rod bodies comprise a first rod body and a second rod body; the first rod body is provided with a first end and a second end; the second rod body is provided with a third end and a fourth end; the first end of the first rod body is connected with the tip end, and is integrally molded with the tip end; the second end of the first rod body is fixedly connected with the third end of the second rod body; a plurality of first connection structures are arranged at the second end; a plurality of second connection structures matched with the first connection structures are arranged at the third end; the third end of the second rod body is in fusion connection with the second end of the first rod body through an injection molding manner. Through the adoption of a sectional structure, during an injection molding production process of the puncture core rod, a sufficiently long location space can be reserved for a molding rod; the offset of the molding rod is avoided, so that the puncture core rod has high injection molding quality.

The present invention discloses an ultrasonic auxiliary micro injection forming die. The die comprises a fixed die and a moving die, wherein the fixed die comprises a fixed die fixed plate, and a fixed die template is connected with the fixed die fixed plate. The moving die comprises a moving die template which is connected with a moving die insert in the middle, a moving die fixed plate is fixedly connected with the moving die template arranged above through a baffle plate. A push plate supporting device is arranged in the middle of the moving die fixed plate, and a support is fixedly arranged between the push plate and the moving die template through a pillar support. A spring is arranged between the push plate and the moving die template, and an energy transducer is connected with an ultrasonic generator. Every set of piezoelectric ceramics is connected, in a manner of being compressed, with the bottom surface of the support through double ended screws, the top end of every double ended screw is in threaded connection with the lower part of a horn, and the top part of every horn is connected with a moving die core. By adopting the device, not only the fluidity and filling performance of polymer melt can be improved, but the physical property of micro injection molded parts can also be enhanced.

The invention discloses a puncture core rod and a puncture device comprising the same. The puncture core rod comprises a tip end and at least two rod bodies, wherein the at least two rod bodies comprise a first rod body and a second rod body; the first rod body is provided with a first end and a second end; the second rod body is provided with a third end and a fourth end; the first end of the first rod body is connected with the tip end, and is integrally molded with the tip end; the second end of the first rod body is fixedly connected with the third end of the second rod body; a plurality of first connection structures are arranged at the second end; a plurality of second connection structures matched with the first connection structures are arranged at the third end; the third end of the second rod body is in fusion connection with the second end of the first rod body through an injection molding manner. Through the adoption of a sectional structure, during an injection molding production process of the puncture core rod, a sufficiently long location space can be reserved for a molding rod; the offset of the molding rod is avoided, so that the puncture core rod has high injection molding quality.