bag opening mechanism

Abstract

The invention discloses a bag opening mechanism. The bag opening mechanism comprises a frame, a lower conveying roller component, a driving piece and a floating core ball. The lower conveying roller component comprises a first lower conveying roller, a second lower conveying roller and a lower conveying roller mounting plate. The lower conveying roller mounting plate is fixed on the frame; and the first lower conveying roller and the second lower conveying roller are mounted on the lower conveying roller mounting plate, and support the floating core ball. The floating core ball is connected with a connecting rod; and one end, far from the floating core ball, of the connecting rod is connected with a copying tool. The driving piece drives the first lower conveying roller and the second lower conveying roller to rotate. The bag opening mechanism cannot generate the abnormal condition of unsuccessful bag opening caused by smaller thickness of a drum film and bad electrostatic absorption bonding of the drum film, so that the drum film with the thickness smaller than 0.015 mm can be opened, the bag opening success rate reaches 100%, and the bag opening success rate is high. In addition, the bag opening mechanism is excellent in operation stability, quick in bag opening and high in bag opening efficiency.

Description

technical field [0001] The invention belongs to the technical field of bag opening, and relates to a bag opening mechanism. Background technique [0002] At present, the bag opening of the roll film is usually carried out by using a bag opening mechanism. The bag opening mechanism in the prior art generally includes two suction cups, a vacuuming device and a suction cup driving device. The two suction cups are installed on the suction cup driving device and located on both sides of the roll film, and the vacuuming device is connected with the suction cups. When the bag is opened, the suction cup driving device drives the two suction cups close to the roll film, so that the opening of the suction cup is attached to the roll film, and then the vacuum device works, the suction cup sucks the roll film, and then the suction cup drive device drives the two suction cups to move away from each other. Open the roll film to realize the bag opening of the roll film. But this bag open...

AI Technical Summary

Problems solved by technology

But this bag opening mechanism often has some disadvantages: 1. This bag opening mechanism is generally suitable for roll films with thicker film thickness, that is, bags with thicker wall thickness, and for roll films with thinner film thickness, due to The electrostatic adsorption and adhesion of the roll film is very severe, and the success rate of opening the bag is low, resulting in poor operation stability of the equipment. Especially for the roll film with a film thickness <0.015mm, the bag opening mechanism in the prior art is basically unable to complete the opening process. Therefore, it is necessary to use a roll film with a relatively thick film thickness, which increases the amount of materials used, increases the production cost of the enterprise, and causes waste of resources and environmental pollution; 2. The efficiency of opening the bag is low, which is not conducive to the development of the enterprise

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