239results about How to "Small body" patented technology

A bistable switching method and a latching relay using the same are provided. The latching relay includes a rotor shaft, a cylindrical permanent magnet, a first permeability material, a second permeability material, a coil, a hitting device and a contact unit. The method includes the following steps. While the coil is applied first direction currents, the rotor shaft rotates and to make the contact unit from the open state to the closed state or the contact unit keeps the closed state. After the first direction currents are turned off, the contact unit still remains in the closed state. Otherwise, while the coil is applied second direction currents, the rotor shaft rotates and to make the contact unit from the closed state to the open state or the contact unit keeps the open state. After the second direction currents are turned off, the contact unit still remains in the open state.

The inventiondiscloses an externalinclined core pulling device of an injection mold. The externalinclined core pulling device comprises an inclined core pulling rod (1),an inclinedsliding foot (2), a horizontal sliding block (3), a longitudinal sliding block (4) and a sliding seat (5). According to the device, the inclined core pulling rod is connected ontotheinclined sliding foot; the inclined sliding foot is fastened onthe left inclined surface of the horizontal sliding block in a sliding manner; the horizontal sliding block is fastened on and connected with the sliding seat in a slidingmanner; the lower part of the longitudinal sliding block is fastenedon the right inclined surface of the horizontal sliding block in asliding manner; the upper part of the longitudinal sliding block is fixedly connected with theouter wall of a fixed mold loading plate; thesliding seat is fixedly connected with a movable mold loading plate; theinclined core pulling rod slides in an inclined manner and penetrates through themovable mold loading plate and a core; an inclined hole core is raised out of the upper surface of the core. During work, a mold is used for mold disassembling, the longitudinal sliding block pulls the horizontal sliding block to move rightward; the horizontal sliding block pulls theinclined sliding foot andtheinclined core pulling rod to move rightwards and downwardsso as to pull the inclined hole core out of a product in an inclined manner. According to the technical scheme, for the injection moldto be subjected to inclined core pulling, the aims that the shape of the mold is reducedand the comprehensive cost is reduced can be achieved.

The invention discloses a straightly-jacking and obliquely-drawing device for an injection mould. The device comprises an obliquely-drawing core block (1), an obliquely pulling block (2), a straightly-jacking core block (3), a limiting rod (4) and a spring (5). The obliquely-drawing core block is provided with a buckle head A and a buckle groove A; the obliquely pulling block is provided with a buckle head B and a buckle groove B; an oblique slideway is formed in a straightly-jacking mould core of the straightly-jacking core block; the obliquely-drawing core block slides into the oblique slideway , and the obliquely pulling block is positioned right below the obliquely-drawing core block and is connected with the buckle groove B by the buckle head A in a sliding and buckling manner and with the buckle groove A by the buckle head B in a sliding and buckling manner; the obliquely-drawing core block, the obliquely pulling block and the straightly-jacking core block are positioned in a mounting groove hole of a movable mould core, the obliquely pulling block and the movable mould core are fixedly connected, and the straightly-jacking core block and the movable mould core are connected in a sliding manner; when the core is drawn, the straightly-jacking core block directly jacks upwards a product to demould, and at the same time, under the action of the buckle head A, the buckle groove A, the buckle head B and the buckle groove B, the obliquely-drawing core block is rightwards, downwards and obliquely drawn from the product, and the obliquely-drawing core block is released from the obliquely pulling block; after the obliquely-drawing core block stops, the straightly-jacking core block continuously jacks and pushes the product to be released from the movable mould core; through the adoption of the technical schemes of straightly-jacking and obliquely-drawing, the injection mould required to be obliquely drawn achieves the purposes of body shrinkage and cost reduction.

The invention discloses a core pulling device of a cylindrical core with backoff structures uniformly distributed on a cylindrical surface. The device includes a core column (1), A sliding blocks (2), and B sliding blocks (3). According to the invention, six A sliding blocks, six B sliding blocks, and one core column are adopted to fit to form a cylindrical fit core with uniformly distributed backoff structures. The A sliding blocks and the B sliding blocks are connected and are in staggered arrangement around the core column at intervals. By the technical scheme of staggering the A sliding blocks and the B sliding blocks at intervals and lead them to concentric contraction, the problems of complicated structure, large body and high cost existing in the prior art are overcome, so that the injection mold of the cylindrical core with backoff structures uniformly distributed on the cylindrical surface can achieve the purposes of structure simplification, body decrease and cost reduction.