Moso bamboo tube efficient bamboo outer skin removing device based on water jet flows

Abstract

The invention discloses a moso bamboo tube efficient bamboo outer skin removing device based on water jet flows. The bamboo outer skin removing device comprises a water jet flow generating unit, a positioning and supporting unit and a clamping rotation propelling unit; the water jet flow generating unit is used for forming the water jet flows (110) which is used for cutting bamboo outer skin (201), the jetting direction of the water jet flows (110) is tangent to the inner wall side of the bamboo outer skin (201) and is close to the cylindrical surface of the outer wall side of middle part of bamboo culm wall (203); the positioning and supporting unit is used for supporting and positioning bamboo tube (200) and providing a channel for advancing the bamboo tube (200); and the clamping rotation propelling unit is used for clamping and positioning the end part of the bamboo tube (200) and propelling the bamboo tube (200) along the axial direction of the bamboo tube (200) to advance, so that the water jet flows (110) can continuously cut the bamboo outer skin (201). According to the bamboo outer skin removing device, the high-performance cutting characteristic of the water jet flows isutilized, the processing efficiency of the bamboo outer skin removal of the bamboo tube is improved, the surface roughness is reduced, and the problems of processing precision and stability are solved.

Description

technical field [0001] The invention relates to the technical field of processing biomass materials, in particular to a novel green cutting processing device, in particular to a water jet-based high-efficiency removal of bamboo greens from moso bamboo tubes. Background technique [0002] Moso bamboo is the bamboo species with the most extensive planting area and the greatest utilization value in my country. Its harvesting cycle is short and its output is high. It has broad application prospects in wood-based panels, construction, furniture, medicine and health industries. important renewable resource. The bamboo tube of moso bamboo is respectively bamboo green, bamboo flesh and bamboo yellow from outside to inside along the radial direction. Among them, the vascular bundles of the bamboo green part are dense and hard, which is difficult to soften, spray and glue, so it needs to be cut off first in the forming process of bamboo wood-based panels. [0003] Removing bamboo gre...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, bamboo green is mainly removed by manual scraping and peeling with a wire brush or by planing. The former has high labor costs and low scraping efficiency, and the latter is generally suitable for bamboo strips.

In addition, there are also methods such as turning, grinding, and floating cutting to remove bamboo green. Cutting often leads to severe tool / abrasive wear or clogging, and rough machined surfaces. In particular, the parameters used in cutting often cannot be too large. Large cutting parameters can easily cause axial embrittlement

Literature (Liu Hongzheng, Wang Xinzhou, Li Yanjun. Crack-free flattening production technology of bamboo tubes [J]. Forestry Industry, 2018, v.45; No.273(05):41-45) and literature (CN201610804312.7, a bamboo tube to remove The processing method of bamboo green and bamboo yellow) has reported the method of floating cutting for the production of bamboo tubes without cracks and flattening. The combined floating tool used can realize the removal of bamboo green materials with a processing rate of 5-10m / min. The floating cutting process greatly It improves the work efficiency of traditional cutting and overcomes the influence of moso bamboo bending and irregular shape on processing, but there are shortcomings such as serious tearing of surface bamboo fibers, rough processing surface and large tool loss.

In addition, there are literatures (Xu Zhaojun. Research on laser treatment of bamboo green surface [J]. Wood processing machinery, 2017 (05): 16-18.) to study the use of laser to remove bamboo green, which has high efficiency and low cost, such as when the laser moves When the speed is 0.15m / min, the thickness of the cut bamboo green is 45μm, which is still difficult to meet the requirements of large-scale industrial application

The adaptive bamboo green remover reported in the literature (CN201820432532.6, self-adaptive bamboo green remover) also belongs to mechanical cutting processing, and there are also problems such as limited processing efficiency and rough processing surface.

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