Opening and closing mechanism for multiple edge dies

Abstract

The invention relates to an opening and closing mechanism for multiple edge dies. The opening and closing mechanism comprises a bottom die plate, a bottom die fixed to the bottom die plate, the multiple edge dies and an upper die. Edge die locking rings are fixed to the top of the bottom die plate, an upper die plate is fixed to the top of the upper die, a first connecting rod is fixed to the topof each edge die, strip holes allowing the upper ends of the first connecting rods to penetrate through are formed in the upper die plate, a plurality of guide blocks are fixed to the upper die plate,third connecting rods are hinged to the upper ends of the first connecting rods through second connecting rods, an opening and closing control plate is hinged to the other ends of the third connecting rods, rolling bearings are installed at the ends of the second connecting rods in a rotating mode, and guide grooves are formed in the side walls of the guide blocks. The opening and closing mechanism greatly saves die cost. The number of the edge dies can be adjusted by oneself according to the structures of products without the limitation of a machine oil cylinder, the structure is light and handy, and the dimensions are more uniform; and the temperature field of the edge dies is more uniform, edge die cooling arrangement is relatively easy, and meanwhile casting trimming among the edge dies can be improved more easily. Finally, by means of the structure, the die opening height of the dies can be greatly reduced to save the die opening and closing time.

Description

technical field [0001] The invention relates to a polygonal mold opening and closing mechanism, which belongs to the technical field of mechanical molds. Background technique [0002] At present, the side molds of wheel hub molds on the market are mostly two-open and four-open mold structures. The side molds are connected to the oil cylinder of the casting equipment for opening and closing to achieve the purpose of demoulding. However, this structure has many disadvantages, which are summarized as follows: [0003] 1. The number of side molds is limited by the number of oil cylinders on the equipment, and it is necessary to manually connect the side molds and side mold oil cylinders. During the production process, the oil cylinders need to be opened and closed continuously, which increases energy consumption. [0004] 2. Because the side mold needs to be connected with the side mold oil cylinder and the opening and closing structure, the structure of the side mold is complic...

AI Technical Summary

Problems solved by technology

[0009] The invention provides a multilateral mold opening and closing mechanism, which solves the problem that the number of side molds of the current mold is limited by the number of oil cylinders, and the use of oil cylinders to control the opening and closing of the side molds results in complex structure, resulting in uneven temperature field of the side molds, difficulty in the cooling arrangement of the side molds, and easy deformation. And flash, the problem that increasing the opening and closing height affects the opening and closing time

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