SU592607A1 - Mould for making hollow long articles - Google Patents

Description

one

This invention relates to the field of plastics processing into products.

The known casting mold for the manufacture of long hollow articles, containing movable and fixed plates with half-molds, forming a mark and a device for removing the product from the shape 1. A disadvantage of the known form is the dullness of its design due to the implementation of a system of levers and a collision plate. Also known is an injection mold for the manufacture of long hollow articles, containing fixed and movable semi-matrix plates, a joint that interacts with the base plate and a forming mark, the shank of which is fixed on the pull rod 2. In a known form, a plate with a forming sign is used to push the product moved along guides, a copier along which the roller moves, connected with a slide-ejector, connected to the compressed air supply system. The content of a significant number of elements complicates the design of the form and, in addition, the use of compressed air leads to additional energy consumption.

In order to simplify the design, the proposed mold is provided with a horizontal rack mounted on a fixed plate and interacting with it.

two vertical toothed racks mounted on t ge.

FIG. 1 image at the moment of moving the movable plate from the stationary; on

FIG. 2 - removal of the product from the forming mark and removing it from the mold; in fig. 3 - form in isometry.

The casting mold contains a base plate 1, a fixed plate 2 with fixed

on them, respectively, semi-matrix 3 and 4, forming the sign 5, the shank of which is fixed on the 6th stage, interacting with guide 7, which is located on the movable plate 1. On the fixed plate 2

The horizontal rail 8 is rigidly fixed, and in the movable plate 1 two vertical rail 9 interacting with the horizontal rail 8 are spaced, which in the upper part are connected by a tie 6.

The form works as follows. After the material is filled with the design nests and the required shutter speed, the form is opened, while the plate 2, together with the horizontal rail 8, remains stationary and

Claims (2)

The vertical slats 9, which are in engagement with the rail 8, do not move t 6 and the forming sign 5 upwards. By this, due to the movement of the gingo by the guide 7, the sign 5 is extended from the product, which is retained in the half-matrix 3 by the product collar. When the product is out of engagement with the semi-matrix, it falls into the connector under the action of its own weight. When the form is closed, the whole process occurs in the reverse order, i.e. the sign moves in a vertical plane, lowers into the forming cavity of the half-matrix and the form is ready for the next cycle. The use of this invention improves the performance and reliability of the mold. Formula of the Injection Molding mold for the manufacture of hollow long articles, containing fixed and movable semi-matrix plates, a joint, interacting with a guide movable plate, and a forming sign, the shank of which is fixed on a rod, which it is fitted with a horizontal toothed rack fixed to the fixed plate and two vertical toothed racks mounted on it to interact with it. Sources of information taken into account in the examination 1. USSR author's certificate number 157775 cl. In 29F 1/02, 1962. 2. USSR author's certificate №279027 cl. In 29C 5/00, 1969. .; Jf4 4 N X product