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Double-side high-smoothness pulp molding product shaping system and shaping method

A technology of pulp molding and forming methods, which is applied in the direction of textiles and papermaking, can solve the problems of long process time and achieve the effect of improving production cycle and production cycle

Pending Publication Date: 2019-05-03
永发(江苏)模塑包装科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the paper-plastic molding equipment currently on the market includes suction moulds, extrusion moulds, hot-pressing upper dies, hot-pressing lower dies, transfer dies and unloading fixtures, hot-pressing upper dies and hot-pressing lower dies. The final wet embryo is hot-pressed in this step to set the shape and remove moisture, but because the current technology is to set an air-absorbing structure on the hot-pressed lower die, three moving process stations on the lower plate are used, especially in the working process. The process time of bit 2 link is the longest

Method used

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  • Double-side high-smoothness pulp molding product shaping system and shaping method
  • Double-side high-smoothness pulp molding product shaping system and shaping method

Examples

Experimental program
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Effect test

Embodiment 1

[0044] A double-sided high-smoothness pulp molding product forming system provided in this embodiment, see figure 1 As shown, according to the sequence of preparation of pulp molded products, it includes: suction mold 2 forms a wet embryo after sucking pulp from the pulp tank 1; After the embryo is reversed upwards, the wet embryo is extruded with the extrusion die 3 for the first time; the hot pressing upper die 4 can move up and down in the vertical direction; the hot pressing lower die 5 can move left and right in the horizontal direction. When the lower mold 5 corresponds up and down, the wet embryo is hot-pressed; the hot-pressing upper mold 4 is provided with an air suction structure, and the hot-pressing lower mold 5 is provided with an air-blowing structure; the hot-pressing lower mold 5 and placed under the hot-pressing The new transfer mold 8 on the downstream side of the mold 5 is fixed on the horizontal slide plate, and the formed molded product in the new transfer...

Embodiment 2

[0051] This embodiment provides a molding method of pulp molding, see Figure 9 shown, including the following steps:

[0052] After the pulp suction die 2 sucks the pulp from the pulp tank 1, it turns over, squeezes with the extrusion die 3 on it, and turns over again after extrusion. At this time, the hot pressing lower die 5 moves to the left to the pulp suction die 2 Below, the slurry suction mold 2 places the wet embryo in the hot-pressing lower mold 5. At this time, the station 1 is formed, and the hot-pressing lower mold 5 moves to the right to the position corresponding to the hot-pressing upper mold 4 to form a station 2. At this time, the hot-pressing upper die 4 moves vertically downward, squeezes the wet embryo with the hot-pressing lower die 5 and heats it to shape. There is a blowing structure, therefore, the molded product formed here is on the hot-pressing upper mold 4, and then the hot-pressing lower mold 5 and the unloading clamp move to the left together, a...

Embodiment 3

[0057] This embodiment provides a method for forming a double-sided high-smooth pulp molded product, comprising the following steps,

[0058] S1. Adsorb the slurry on the surface of the corresponding upper and lower slurry suction molds to obtain the original double-layer blank;

[0059] S2. The hot-pressing lower die moves to the left, and the above-mentioned wet blanks of the positive cavity and the wet blanks of the negative cavity are placed in the lower hot-pressing die according to the rough surface, and the upper hot-pressing die moves downward to extrude and heat. The temperature is 80°C, heating for 5 minutes; at the same time, after the heating is completed, the hot-pressing upper mold and the hot-pressing lower mold are separated, and the molded products are absorbed and transferred by the hot-pressing upper mold;

[0060] S3. The hot-pressing lower mold and the unloading fixture move to the left together, and return to station 1. At this time, the hot-pressing uppe...

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Abstract

The invention discloses a double-side high-smoothness pulp molding product shaping system, which successively includes a pulp sucking mold comprising, successively according to the order of preparation of the pulp molding product, a front side cavity and a back side cavity of the pulp molding product; a hot-pressing mold includes, corresponding to the pulp sucking mold, a hot-pressing upper die and a hot-pressing lower die, wherein the contact surfaces between the hot-pressing upper die and hot-pressing lower die and a to-be-pressed green body are high-gloss surfaces; the hot-pressing upper die can be moved up and down in the vertical direction, while the hot-pressing lower die can be moved left and right in the horizontal direction. When the hot-pressing lower die is moved to a position vertically corresponding to the hot-pressing upper die, the hot-pressing treatment is carried out. The shaping system can be used for manufacturing the double-side high-smoothness pulp molding productwith uniform thickness. The invention also provides a shaping method, which can be used for producing the pulp molding product having uniform thickness, having high smoothness totally and being free of rough surface by using the shaping system. The method is simple in operation, reduces operation time of the equipment during shaping and increases the cycle period of the equipment for manufacturingthe pulp molding product.

Description

technical field [0001] The invention relates to the technical field of molding production, in particular to a molding system and method for a double-sided high-smooth pulp molding product. Background technique [0002] Pulp molding is also called "three-dimensional papermaking technology". Different from traditional papermaking, it uses plant fiber pulp (bamboo pulp, wood pulp, sugarcane pulp, reed, straw, etc.) A process in which pulp fibers are dehydrated and compression molded into pulp products through a certain pressure and temperature on the mold. At present, the traditional pulp molding technology, due to the limitations of technology, equipment, raw materials and other aspects, the products are of extensive structure. However, with the upgrading of the industrial chain, consumers' concept of product appearance and functional requirements is also gradually improving, and the development towards a more refined direction is bound to bring certain impetus to the industry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J5/00
Inventor 费国忠许涛陈意梅陈松林邵长山缪应秋杨冠军杨跃明陈忠扬
Owner 永发(江苏)模塑包装科技有限公司
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