Residual film pickup device

Abstract

The present invention relates to a residual film pickup device. The residual film pickup device is characterized by being composed of a chain harrow frame, a film pickup mechanism, an impurity- removing turning plate and depth wheels, the film pickup mechanism is arranged in the chain harrow frame, a film removing mechanism is arranged below an upper part of the chain harrow frame, an impurity removing device is arranged on the chain harrow frame, and the depth wheels are arranged in front of a lower part of the chain harrow frame. Compared with the prior art, a rake tooth structure integratestechnical advantages of film pricking and film holding-up, soil entering time is short when films are picked, conveying is carried on a chain harrow frame supporting plate when the films are held up,interaction force between film picking teeth and soil can be reduced, and a film clamping phenomenon is reduced. The residual film pickup device greatly reduces impurity content of recovered residualfilms, improves film picking efficiency, reduces phenomena of film clamping and winding, and provides guarantee for improving operation efficiency.

Description

technical field [0001] The invention relates to a device for recovering residual film in farmland, in particular to an elastic tooth chain rake type residual film picking device. Background technique [0002] Agricultural plastic film mulching technology has a significant effect on increasing crop yields, but the difficulty of plastic film recycling has caused serious pollution problems, which has gradually become an important factor restricting the sustainable development of agriculture. Residual film recycling in some areas relies on manual picking, which has high recycling costs, high labor intensity, and low efficiency. In addition, there are many types of domestic residual film recycling machines, but the machines have single functions and low adaptability. Existing residual film recovery machines have a variety of structures for picking up film devices, mainly including cuddling, rolling and screening. The collection type mostly uses multiple rows of film rakes. This ...

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Problems solved by technology

The collection type mostly uses multiple rows of film rakes. This model has a simple structure and strong adaptability, but it is easy to tear the plastic film during the recycling process. It is common for the plastic film and impurities to accumulate in front of the film film teeth, which increases the overall power consumption. It is difficult to remove the film, which affects the overall work efficiency

The rolling type mostly uses the roller and the nail teeth to weld to form a film picking device. The continuous picking up of the surface film and the shallow film can be achieved by relying on the interaction between the film picking roller and the soil when the film picking roller advances. However, the film picking effect is affected by the density and arrangement of the nail teeth. The teeth are easily entangled and difficult to remove after the film is taken out, which affects the stability and reliability of the whole machine

The sieving type needs to shovel the mulch and the soil at the same time, and use a multi-layer sieve to separate the mulch from the soil. This structure has an outstanding effect on the recovery of the residual film before sowing, but the power consumption of the whole machine is relatively high

In addition, the automation level of various film wrappers is low, and the failure rate is high, resulting in low work efficiency

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