RU2481190C2 - Weight-reducing method of making cap hook - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to moulding enlarged cap with hook to capping beverage in PET bottles. Proposed method comprises moulding said hood in injection mould by allowing moulding elements 3 from left and right sides of said hook.

EFFECT: cost savings, decreased weight of cap 1 and possibility of moulding horizontal baffle 2.

4 cl, 8 dwg

Description

The claimed technical solution is intended to enable the production of a special enlarged lid with a hook for a PET bottle using a mold and to save material on the hook and lid. It relates to molds for making Pat bottle caps for the food industry.

The presented technical solution is designed to ensure the industrial manufacture of a new patented lid for containers Pat Figure 1 according to the patent of the Russian Federation No. 2238895 dated 10.27.2004. Its essence is to ensure using a mold in place between the lid and the hook Figure 5 , the passage of the molds so that they fill a “space under the hook” 1 of FIG. 5, thereby reducing the consumption of raw materials for the production of the lid and hook. In addition, due to the new method of forming the hook, it becomes possible to make the “horizontal partition” 2 of Fig. 3 at the hook; 4, which gives the finished and more aesthetic appearance to the hook.

The known solution, according to the patent of the Russian Federation No. 2238895 dated 10.27.2004, does not consider the method of organizing the fastening of the hook to the enlarged lid, but only describes the need for a hook on the enlarged lid.

There is another technical solution for the formation of a hook on the lid, which consists in the fact that the forming molds pass from above, vertically to the hook, and therefore, under the hook, in the place of its attachment to the lid, “space under the hook” appears 1 Fig. 5, into which vertically sliding molds cannot penetrate, and as a result, this place is filled with the material from which the lid is made, and as a result, the material is overused.

The technical result to which this invention is directed is to minimize the weight of the lid material by using a special method of forming the hook on the lid, subject to the uniform thinness of the entire product, as well as the ability to form a horizontal partition on the hook, which makes the hook look harmonious and complete , which significantly increases its aesthetic perception for the consumer

This result is achieved due to the fact that such a hook formation in the mold was applied, in which the forming elements of the mold 3 of Figure 2, since they move horizontally and clasp the lid along the profile, easily pass into place under the hook and lid completely filling it with yourself. Under this condition, the finished cover with a hook is obtained already without the material filled "space under the hook" 1 Figure 5. Thus, the lid and hook are already connected by a more “economical connecting part” 4 of FIG. 6, and in the place between the hook and the lid already becomes “less than the amount of material under the hook and the lid” 5 of FIG. 6, and the thinness of the entire product is observed. In addition, this method allows you to make a "horizontal partition" 2 on the upper part of the hook Figure 4. Also, this method allows you to form on the enlarged cover "horizontal ribs" 6 Fig.7. The material from which the lid is made is polyethylene or propylene, which has the property of shrinkage after casting, but with this method of forming a hook on the lid, the overall thinness of the entire product is fully observed.

Thus, due to the passage of the forming elements of the mold 3, not through the hook, but from its sides, the formation of the hook with the “horizontal partition” 2 of FIG. 3 and with the missing cover material in the “space under the hook” 1 of FIG. 5 is ensured. .

Achievable technical result, which is aimed at "A method of manufacturing a hook on a lid for a PET bottle that reduces its weight", is to reduce material consumption, reduce the weight of the lid and the possibility of forming a "horizontal partition" in the upper part of the hook 2.

Figure 1 shows the cover according to the patent of the Russian Federation No. 2238895 dated 10.27.2004.

Figure 2 shows the forming element of the mold 3.

Figure 3 shows the cover with a "horizontal partition" 2, side view.

Figure 4 shows the cover with a "horizontal partition" 2, a top view.

Figure 5 shows the cover with a "space under the hook" 1.

6 shows a lid with an “economical connecting part” 4 and “less material under the hook and lid” 5.

In Fig.7 shows a cover with "horizontal stiffeners" 6 and "horizontal partition" 2.

On Fig shows a cover with a hook with a "horizontal partition", front view.

Claims (4)

1. A method of forming a hook on an enlarged lid for drinks in a PET container, characterized in that the hook is formed by passing the forming elements of the mold on the sides of the hook. 2. The method according to claim 1, characterized in that it allows you to form a "horizontal partition" on the hook. 3. The method according to claim 1, characterized in that it allows the formation of "horizontal ribs" on the lid. 4. The method according to claim 1, characterized in that it allows to reduce the amount of material in place between the hook and the lid.

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