Compacting method for improving cutting width precision of plastic materials, and device for implementing compacting method

Abstract

The invention discloses a compacting method for improving cutting width precision of plastic materials, and device for implementing the compacting method. The compacting method includes connecting an upper conveyer belt to an electric cylinder which is driven by a motor, arranging a pressure sensor and a height sensor on the electric cylinder, connecting the pressure sensor, the height sensor and the motor to a control system, and allowing a lower conveyer belt and the upper conveyer belt to form a certain inclined angle and conveying material forwardly at certain speed for gradual compacting. The height of the upper conveyer belt is regulated by the electric cylinder, and the material is cut by blades from top to bottom under a certain frequency. The compacting method and the device for implementing the compacting method have the advantages that density and layer height of the material in a cutting area can be controlled stably, the cut material is well loose, uniformity of cutting width is improved greatly, loss of raw materials can be reduced, and economic benefit can be increased.

Description

technical field [0001] The invention relates to a compaction method, in particular to a compaction method for improving the cutting width precision of plastic materials, and also relates to a device for realizing the method. Background technique [0002] The cutting of materials will always be involved in various processes, such as sliced ​​Chinese herbal medicines, shredded tobacco, etc. It is very important to obtain a uniform cutting width, because the materials are cut too finely, and will be cut in the subsequent process. It will affect the purity of the product, even the loss of raw materials and reduce the processing efficiency, which is not expected, and the material with too large cutting width is mixed in the cutting object, and the cutting effect cannot be achieved. [0003] There are many kinds of cutting methods and equipment. According to the layout of the modern industrial assembly line, continuous cutting is carried out, and the output requirements are relati...

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Problems solved by technology

[0004] Since the material to be cut has a certain material layer thickness, whether the actual width of the material to be cut is close to the theoretical width depends on whether the conveying speed of the upper, middle and lower layers of the material layer is consistent, and is also related to the compression performance of the material. The conveying speed mainly depends on the ratio of the speed of the upper and lower conveyor belts, and the compression performance of the material depends on the compaction device. If the material is pressed too tightly, on the one hand, the output speed of the material is lower than the design speed, resulting in a too thin cutting width. The loosening effect of the material after release is not good, and the width of the material expands after the pressure is released, which cannot reach the designed cutting width

If the material is not compacted, the material is easily taken out by the blade during cutting, and the cutting effect cannot be achieved

[0005] Since the volume of the cut material cannot be basically the same all the time, when the compacting device is selected, if the compacting device is kept inactive, the compressed density of the material will change with the change of the material volume, and the deformation of the material will fluctuate greatly. , is not conducive to the stability of the cutting width, and the use of pneumatic technology to control the lifting of the compaction device, because the compressed air itself has a large compressibility, there is a certain time lag, and the sensitivity is not high, resulting in poor positioning accuracy of the cylinder, especially In the way of fixed air pressure or fixed output of the cylinder, the height and compaction density of the material layer will also fluctuate with the amount of incoming material, which is not conducive to the stability of the cutting width of the material

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