Method for moving mold of plant fiber molding machine up and down and line rail type up and down mold moving device

Abstract

The invention relates to a method and a device for making a plant fiber product with paper pulp by means of molding. According to the technical scheme, a method for moving a mold of a plant fiber molding machine up and down comprises the following steps: 1) while a plant fiber molding product is manufactured, fixing a vertical moving mold which can make up and down straight line movement at one end of a sliding column, or fixing the vertical moving mold at one end of the sliding column through a mold mounting plate, and driving the vertical moving mold to make up and down straight line movement through the sliding column which is positioned on an upper rack and is capable of sliding vertically up and down relative to the upper rack; and 2) connecting the sliding column with a weight balance block through a weight balance connecting line or a chain mounted on a fixed pulley in a span manner, rotationally positioning the fixed pulley or a sprocket on the upper rack, and tracking the weight balance block of the sliding column through the weight balance connecting line or the chain. The method and the device are high in guiding precision, short in forming cycle, stable in operation, high in output, and capable of eliminating hydraulic oil pollution of wet blanks.

Description

technical field [0001] The present invention relates to a method and device for making plant fiber (abbreviated as plant fiber; hereinafter the same) products including pulp by molding; it is suitable for making disposable planar or non-planar plant fiber molded products, especially suitable for making one-time Non-planar paper products; such as plant fiber tableware, plant fiber trays, plant fiber industrial products shockproof pads and packaging trays or boxes, disposable non-planar plant fiber decorative three-dimensional wall panels (or plant fiber three-dimensional wallpaper or pulp molded three-dimensional wallpaper), exquisite small-angle plant fiber industrial packaging tray and box products, flat and three-dimensional products made of starch and plant fiber mixture by molding, or starch and plant fiber mixture as raw material by molding Foamed planar and three-dimensional products produced by molding methods, as well as all disposable plant fiber molded products, are ...

AI Technical Summary

Problems solved by technology

[0004] 1. The up and down movement of the vertical moving mold 2.1 is driven by an oil cylinder or an air cylinder or a gas-hydraulic booster cylinder. There will be internal leakage in the hydraulic pressurized cylinder, causing the vertical movable mold 2.1 to slide out of control, and the wear of the piston sealing ring is inevitable during the working process, so this has brought great trouble to the production. can't solve

[0005] 2. The up and down movement of the vertical movable mold 2.1 is driven by an oil cylinder, air cylinder or gas-hydraulic pressurized cylinder, and the frictional resistance is relatively large. When the vertical movable mold 2.1 moves up and down at a very slow speed for mold closing, the movement often shakes. Products prone to cracks

[0006] 3. The up and down movement of the vertical movable mold 2.1 is very poorly guided and the guiding accuracy is not high. When the vertical movable mold 2.1 is clamped with the corresponding matching mold, the mold clamping error is very large each time, which often causes the wet billet to be scratched , or the wet billet cannot be transferred to the wet billet transfer mold to achieve normal transfer

[0007] 4. The up and down movement of the vertical moving mold 2.1 cannot accelerate smoothly when fast movement is required, and the up and down movement distance of the wet billet transfer mold is often very long, which greatly affects the output

[0008] 5. Use an oil cylinder or a gas-hydraulic pressurized cylinder to push the vertical movable mold 2.1 to move up and down. When oil leaks, it will pollute the slurry, wet billet and dried products in the suction filter forming device, and then pollute the entire slurry system, becoming a great danger

[0009] 6. Vertical moving mold 2.1 When the upper and lower molds are clamped, the relative distance between the upper mold and the lower mold cannot be controlled due to stroke overshoot. For example, when the wet blank transfer mold transfers the wet blank to the hot pressing mold, due to The relative distance between the wet billet transfer die and the hot-pressing mold cannot be controlled due to overshooting. When the wet billet is moved, the fibers around the wet billet are splashed outside the cavity of the hot-pressing die, resulting in a large number of burrs, which splash onto the hot-pressing die. The fibers on the surface become coke and pollute the hot pressing mold because they cannot be removed in time

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