Cap pre-screwing swing arm structure

Abstract

The invention relates to a cap pre-screwing swing arm structure. The problems that an existing cap-screwing mechanism can screw a cap obliquely or damage the cap easily, the rejection rate is high and the packaging quality is poor are mainly solved. The cap pre-screwing swing arm structure is characterized in that an upper guide mounting plate (5), a lower guide mounting plate (6), a push plate (7) and a swing sleeve (8) are included; the push plate (7) is mounted between the upper guide mounting plate (5) and the lower guide mounting plate (6) and can slide along a guide rod (9); a swing arm shaft (11) sequentially penetrates through a guide sleeve (10) and the swing sleeve (8), and the swing arm shaft (11) and the push plate (7) are driven by a cam mechanism to make up-down reciprocating motion. By means of the cap pre-screwing swing arm structure, cap slanting and cap breaking can be effectively prevented, when the cap is placed, a die head is accurate in positioning and can rotate in advance, thread dislocation and cap slanting cannot happen to the cap, the cap can be screwed into a bottle opening smoothly, and thus the rate of finished products and the packaging quality are improved.

Description

technical field [0001] The invention relates to a packaging machine, which is a device for realizing pre-screwing caps on an automatic filling machine, and in particular to a pre-spinning cap swing arm structure. Background technique [0002] In daily life, bottled products are relatively common. With the development of packaging machinery, automatic filling machines are usually used for continuous filling and capping operations in mass production of bottled products. At present, the common capping mechanism has the method of directly capping or scraping the cap. First, the cap is pressed on the bottle mouth, and then the cap is screwed. Often, the cap is biased and the inner thread of the cap is misaligned with the outer thread of the bottle mouth. This will cause the cap to be twisted or forcibly screwed during the capping process to damage the cap, resulting in a high reject rate and poor packaging quality. Contents of the invention [0003] In order to overcome the de...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing capping mechanism, the cap is easily twisted or damaged, the scrap rate is high and the packaging quality is poor, the present invention provides a pre-screwing cap swing arm structure, which can effectively prevent crooked caps And breaking the cap, when the cap is placed, the mold head is positioned accurately and rotated in advance, so that the cap will not be misaligned or crooked, and can be smoothly screwed into the bottle mouth, improving the yield and packaging quality

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