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Equipment and method for solving pulp hanging on the back side of pulp forming products

A back, equipment technology, used in textiles and paper, etc.

Active Publication Date: 2022-04-29
WING FAT (HENAN) MOLDED FIBER TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies existing in the above-mentioned background, the present invention provides an optimized pulp molding equipment and method, which improves part of the link structure, solves the problem of orange peel on the product surface, and saves the time for finished products and cost

Method used

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  • Equipment and method for solving pulp hanging on the back side of pulp forming products
  • Equipment and method for solving pulp hanging on the back side of pulp forming products
  • Equipment and method for solving pulp hanging on the back side of pulp forming products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of pulp molding product of this embodiment solves the equipment for hanging pulp on the back, and according to the sequence of preparation of pulp molding products, it includes: a pulp suction mold 2 forms a wet embryo after sucking pulp from the pulp tank 1; an extrusion mold 3 is arranged on Slurry suction mold 2 corresponds to the upper side. After the slurry suction mold takes the wet embryo upwards and reverses it, it will squeeze the wet embryo with the extrusion mold 3 for the first time; the hot pressing upper mold 4 can move up and down in the vertical direction; the hot pressing lower mold 5 can Move left and right along the horizontal direction, and when moving to correspond up and down with the hot pressing lower die 5, carry out hot pressing treatment to the wet embryo.

[0039] Wherein, suction mold 2, refer to Figure 4As shown, it includes a suction cavity, which is connected with a vacuum pump through a solenoid valve. It is in a vacuum state whe...

Embodiment 2

[0043] A kind of pulp forming product of this embodiment solves the equipment for hanging pulp on the back, see Image 6 As shown, it includes slurry suction, extrusion, hot pressing, transfer, after the slurry suction mold sucks slurry from the pulp tank 1, it turns over, squeezes with the extrusion mold 3 arranged on it, and turns over again after extrusion, at this time , the hot-pressing lower die 5 moves to the left below the slurry-suction die 2, and the slurry-absorbing die 2 places the wet embryo in the hot-pressing lower die 5. At this time, station 1 is formed, and the hot-pressing lower die 5 moves to the right The position corresponding to the hot-pressing upper die 4 forms a station 2. At this time, the hot-pressing upper die 4 moves vertically downwards, and the hot-pressing lower die 5 squeezes the wet embryo and heats it to shape. Because the hot-pressing upper die 4 There is an air suction structure inside, and an air blowing structure is provided inside the h...

Embodiment 3

[0046] In order to ensure that the water content of the wet embryo after slurry suction is 70% to 80%, in addition to the above-mentioned examples 1 and 2, the surface of the wet embryo is evenly sprayed with water mist. The spray pressure is 0.1MPa; the spray intensity is 0.3L / min m 2 .

[0047] The surface of the molded product obtained in Example 3 is smooth, without orange peel phenomenon, and has good flatness.

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Abstract

The invention discloses a kind of equipment for solving the problem of pulping on the back side of pulp molding products. There are air blowing and air suction structures in the slurry suction mold; there is an air suction structure in the extrusion mold; The holes are opposite. The invention also discloses a method for solving the problem of pulp hanging on the back side of pulp forming products. When sucking pulp, the pulp suction mold starts the suction mode, and the air pressure is 0.65MPa, and takes 10s; when extrusion mold closing, the pulp suction mold starts the blowing mode , the air pressure is 0.65MPa, at this time, the extrusion die is in suction mode, the air pressure is 0.65MPa, and it takes 15s. Both sides of the molded product prepared by the above-mentioned equipment and method are uniform and smooth, with high flatness, and the phenomenon of orange peel or powder dropping is avoided.

Description

technical field [0001] The invention relates to the technical field of molding preparation, in particular to a method for solving the problem of back pulping of pulp molding products. Background technique [0002] In recent years, with the increasing demand for manufacturing products, especially outer packaging manufacturing products, the appearance and quality of molded products have been greatly improved from the surface, but behind it is high cost and high pollute. In order to improve the yield rate of finished products, enterprises have invested a lot in the improvement and processing of molds. In order to obtain molded products with smooth surfaces, they have added unenvironmentally friendly substances to raw materials or laminated films on the surface of finished products. [0003] In the pulp molding production process with plant fiber as the main raw material, the pulp suction mold is lowered below the pulp level of the pulp storage tank, and the vacuum negative pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21J5/00
CPCD21J5/00
Inventor 徐昆刘福娇薛小俊陈俊忠
Owner WING FAT (HENAN) MOLDED FIBER TECH DEV CO LTD