SU759322A1 - Casting mould for producing polymer articles witj inner intermittent thread - Google Patents

Description

The invention relates to the Processing of thermoplastics, in particular, to injection molds for the production of products with threaded holes in the injection molding machine. five

Known injection mold for the manufacture of polymer products with interrupted internal thread, containing a stationary half-form with a lithium plate, a movable half-form with a 'θ plate pushing and signs, including elements for the design of threaded and bezrezbovyh plots YV known form when removing the product from the sign The plots approach the center, and sticking of the product on one of the elements is possible.

The purpose of the invention is to increase the reliability of the form. 20

This goal is achieved by the fact that in the injection mold for the manufacture of polymer products with interrupted internal thread containing a fixed mold with a lithium plate, a movable mold with a pushing plate and signs, including elements for the design of threaded and bezrezbovyh, elements for the design of threaded sections 30

2

made in the form of taps, and their shanks - with a copy groove, the elements for the design of threadless sections are installed in a fixed gate plate, and fingers included in the copy grooves are placed in the push plate.

FIG. 1 shows the injection mold, section; in fig. 2 - position of the mark before and after withdrawal from the product.

The casting form contains a fixed half-form with a gating plate 1, a movable half-form including a base 2 connected with a base plate 3, a pushing plate 4, signs including elements 5, making out threaded sections, and elements 6, making out threaded sections. The elements 6 are installed in the fixed plate 1. The shanks 7 of the elements 5 are each made with a copy groove 8 for the fingers 9, placed in the pushing plate 4, which interacts with the pusher 10. The product is removed by the removal plate 11.

Injection form works as follows.

After the material is injected into the Form, its connector is produced, the moving half-coupling moves away from the fixed floor

Forms, and signs 6 Out of products. When moving the movable half-plate 4, the pushes bump into the pusher 10 and stop, and the base 2 and the supporting 3 plates continue to move. During movement of the base with marks 5, fingers 9, which are included in the groove groove ”8 of the shank 7, turn marks, made in the form of taps for thread design, to an angle of 60®. The stop 12, fixed in the plate of removal, reaching the plate of pushing 4, rests against it and removes products from signs 5. After removal of the product the form is closed and the cycle repeats.

The use of threaded marks in the form of taps, making out 'intermittent internal thread, ensures reliable operation of the mold.

Claims (1)

Claim Drinking form for the manufacture of polymeric products with internal pre 759322 four a jerk, threaded, containing a fixed half-form with .litnikovy plate, a movable half-form with a plate of pushes' and signs, including elements for the design of threaded and non-threaded E plots, about a ya ya and I am the fact that, in order to improve the reliability of the form, the elements for the design of the threaded sections are made in the form of taps, and the shanks of their 10 ® “one-dimensional groove, the elements for the design * of the threadless sections are set to the fixed gating plate, and in the plate of the pushing placed fingers included in the copy grooves. 15