Agricultural microporous plastic film puncher

Abstract

An agricultural microporous plastic film puncher is suitable to match with the existing film blowing molding production equipment for use and aims not to increase any power. The puncher comprises a needle roll, a pad roll, gears and a bracket. The needle roll comprises a needle roll surface, a round frame plate and a needle roll rotating shaft; the needle roll surface is provided with steel needles thereon and the width of the needle roll surface is a little more than punching breadth; two ends of the surface of the needle roll are fixed on the round frame plate at two sides; the round frame plate is fixed on the needle roll rotating shaft, two ends of which are arranged on the bracket through a bearing seat; the pad roll comprises a pad roll surface, a round frame plate and a pad roll rotating shaft; small holes are drilled on the pad roll surface and the positions of the small holes correspond to the positions of the steel needles on the needle roll; the corresponding positions of the needle roll rotating shaft and the pad roll rotating shaft at the same side are respectively provided with a gear, and the two gears are mutually meshed; and the mounting distance between the two rotating shafts is proximately equal to the sum of the diameters of the needle roll and the pad roll.

Description

technical field [0001] The invention relates to an agricultural microporous mulch puncher. Background technique [0002] Planting crops under mulch has become very common. However, after the mulch covers the farmland, although the storage capacity of soil moisture is enhanced, it also hinders the direct infiltration of rainfall; the airtightness of the film also hinders the gas exchange at the interface between the farmland soil and the atmosphere. According to the measurement, after plastic film mulching, crop rhizosphere CO 2 The concentration can reach 2.6%-5.5%, which is 3-5 times that under open field cultivation conditions. Poor soil aeration is one of the reasons for the "premature aging" of crop cover. For this reason, it is necessary to improve agricultural mulch; for example, Wen Xiangzhen of Shanxi Agricultural University et al. used nail boards to manually punch holes to make porous mulch (Chinese Vegetables, 1993, 4: 18-20), which proved that the porous film c...

AI Technical Summary

Problems solved by technology

However, the manual punching method is time-consuming and laborious, and the efficiency is extremely low, which is far from meeting the needs of large-scale covering cultivation of crops.

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