A paper square grid cluster and a method of making the same

Abstract

The application belongs to the technical field of silkworm breeding, and particularly relates to a paper square cluster and a preparation method thereof. The method is to use non-wood as a main raw material to prepare plant original pulp by using existing technology; 95% plant original pulp and 5% mulberry leaf pulp are stirred and mixed to form mixed pulp; the qualified mixed pulp is injected into a square cluster mold by using an extrusion mechanism, and then is extruded and formed, hot air dried, and finally demolded to obtain a finished product square cluster. The preparation method uses existing equipment to prepare the paper square cluster, saves cost, and realizes mechanized preparation of the square cluster.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of silkworm breeding, and particularly relates to a paper square frame and a preparation method thereof. BACKGROUND

[0002] The silkworm breeding industry has developed to today, and various silkworm breeding processes have been continuously improved, but silkworm breeding has not been industrialized, and one of the biggest bottlenecks is that the silkworm breeding process has not been mechanized. The main reason is that the square frame used for silkworm breeding is irregular and non-standard. The existing square frames include wooden square frames, paper square frames, plastic square frames and the like. The cocooning environment of different square frames is different, and the quality of the cocoon spun by silkworms is also different, so the selection of different frames has a great influence on the quality of the cocoon.

[0003] The wooden square frame cannot be widely applied due to high raw material and production cost, and will consume a large amount of wood resources.

[0004] The quality of the cocoon spun by silkworms using the plastic square frame is improved, but it is not conducive to silk reeling.

[0005] The quality of the cocoon spun by silkworms using the paper square frame is good, and the silk quality is also good, but the strength is low and the deformation is easy, which is not suitable for mechanized cocoon picking. SUMMARY

[0006] The purpose of the present application is to reduce resource consumption and production cost, and to mass-produce a paper square frame with low cost, high strength, and not easy to deform, which is suitable for mechanized cocoon picking.

[0007] The technical scheme for achieving the purpose of the present application is as follows:

[0008] A preparation method of a paper square frame, comprising the following steps:

[0009] (1) using non-wood as the main raw material to produce plant pulp by using existing technology;

[0010] (2) stirring and mixing 95% plant pulp and 5% mulberry leaf pulp to form mixed pulp, and adjusting the pH value and pulp concentration of the mixed pulp to be between 7.5-9 and between 2%-3%, respectively;

[0011] (3) metering and grouting, and injecting the qualified mixed pulp into the square frame mold by using an extrusion mechanism;

[0012] (4) extrusion molding, moving the square frame mold to the extrusion head of the extrusion mechanism, moving the extrusion head downward, extruding the mixed pulp in the square frame mold, and recycling the excess water through the mesh holes of the square frame mold into the water collecting tray;

[0013] (5) hot air drying, when the dryness of the mixed pulp in the square cluster mold reaches about 40%, the extrusion head moves up, and the square cluster mold together with the mixed pulp with certain strength in the mold is moved to the oven for hot air drying, and the hot air temperature is between 180 degrees and 220 degrees;

[0014] (6) demolding, when the dryness of the mixed pulp in the mold reaches 97%, the square cluster mold is moved to the position right below the demolding punch, and the punch moves down to punch out the mixed pulp in the square cluster mold, and the finished product square cluster is obtained.

[0015] Further, the non-wood raw material in step (1) is wheat straw, reed, bagasse, luffa, mulberry stem or waste paper, etc.

[0016] Further, the mulberry leaf pulp in step (2) is processed by blanching, cooling, coarse crushing and pulping, and all effective components of the mulberry leaf are fully retained. The mulberry leaf is commonly used for silkworm breeding, and has a single use, resulting in a large amount of resource waste. The mulberry leaf contains rich nutritional components and bioactive substances, and has good nutritional and health care and medicinal values. In the method of the present application, 5% of the mulberry leaf pulp is added to the mixed pulp, so that the prepared paper square cluster is beneficial to silkworm spinning and cocooning.

[0017] Further, the square cluster mold in step (3) is prepared according to actual production needs, and is a whole hole mold with certain specifications and shapes, and different molds can be replaced according to actual needs. The square cluster mold can be rectangular, square, rhombus, etc., and the holes in the mold can be rectangular, square, rhombus, triangle, circle, etc. The square cluster mold can be prepared by using the existing method.

[0018] Further, the extrusion forming in step (4) has a mold pressure of 0.5-0.8 Mpa.

[0019] The traditional square cluster for silkworm breeding is made of solid materials (such as paper, wood, plastic, metal, etc.), and the method of the present application provides a preparation method for obtaining a paper square cluster for silkworm breeding. 95% of plant raw pulp is mixed with 5% of mulberry leaf pulp to form mixed pulp, and then the mixed pulp is extruded, dried and demolded by using an extrusion mechanism to obtain a finished product square cluster. The feasibility of the manufacturing process is proved by the examples of the present application, and the prepared square cluster has high strength and is not easy to deform, and is suitable for mechanized cocoon picking. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 The flow chart for preparing the paper square cluster of the present application;

[0021] Fig. 2 The working process schematic diagram of the spiral feeding and extruding mechanism for preparing the paper square cluster in the example;

[0022] In the figure, 1. Screw feeding and extruding mechanism 2. Square cluster mold 3. Extruding head 4. Water receiving tray 5. Oven 6. Demolding punch 7. Finished square cluster. DETAILED DESCRIPTION

[0023] The present application will be further described in detail below with reference to the accompanying drawings and examples, but is not limited to the present application. EMBODIMENT

[0024] REFERENCE Figs. 1-2 A method for preparing a paper square cluster, comprising the following steps:

[0025] (1) Using non-wood (wheat straw, reed, bagasse, luffa, mulberry or waste paper, etc.) as the main raw material, a pulp is prepared by using existing technology;

[0026] (2) 95% of the plant pulp is mixed with 5% of mulberry leaf pulp to form a mixed pulp, and the pH value and pulp concentration of the mixed pulp are adjusted so that the pH value is between 7.5-9 and the pulp concentration is between 2%-3%;

[0027] (3) Measuring and feeding the pulp, and using the screw feeding and extruding mechanism 1 to inject the qualified mixed pulp into the square cluster mold 2;

[0028] (4) Extruding and forming, moving the square cluster mold 2 directly below the extruding head 3, moving the extruding head 3 downward, the pressure in the mold is 0.5-0.8 Mpa, extruding the mixed pulp in the square cluster mold 2, and the excess water falls into the water receiving tray 4 through the mesh of the square cluster mold 2 for recycling;

[0029] (5) Hot air drying, when the dryness of the mixed pulp in the square cluster mold 2 reaches about 40%, moving the extruding head 3 upward, moving the square cluster mold 1 together with the mixed pulp with certain strength in the mold into the oven 5 for hot air drying, and the hot air temperature is between 180 degrees to 220 degrees;

[0030] (6) Demolding, when the dryness of the mixed pulp in the mold reaches 97%, moving the square cluster mold 2 directly below the demolding punch 6, moving the punch 6 downward to punch out the mixed pulp in the square cluster mold 2, and the finished square cluster 7 is obtained.

[0031] In step (1), the pulp is prepared by using existing technology with non-wood as the main raw material. The pulping process mainly uses chemical method with non-wood such as wheat straw, reed, bagasse, luffa, mulberry or waste paper as the main raw material, and the process mainly includes soda pulping, kraft pulping and sulfite pulping.

[0032] In step (3), the square cluster mold can be rectangular, square, rhombus, etc., and the holes in the mold can be rectangular, square, rhombus, triangle, circle, etc. The square cluster mold can be prepared by using existing method.

[0033] The existing paper square frame cluster usually adopts full wood pulp kraft paper board as an outer frame, and high-quality yellow board paper is added and bonded for special treatment, and the strength is low and easy to deform, and it is not suitable for mechanized cocoon picking. The paper square frame cluster prepared by the preparation method of the application has high strength and is not easy to deform, and is suitable for mechanized cocoon picking.

Claims

1. A method of making a paper grid cluster, characterized by, It comprises the following steps: (1) using non-wood as the main raw material to make plant pulp, non-wood raw material is wheat straw, reed, bagasse, luffa, mulberry or waste paper; (2) 95% plant pulp is mixed with 5% mulberry leaf pulp to form mixed pulp, the pH value and pulp concentration of the mixed pulp are adjusted to make the pH value between 7.5-9 and the pulp concentration between 2%-3%; (3) metering and pouring, using extrusion mechanism to inject qualified mixed pulp into square grid cluster mold; (4) extrusion molding, moving the square grid cluster mold to the extrusion head of the extrusion mechanism, the extrusion head moves down to extrude the mixed pulp in the square grid cluster mold, the excess water falls into the water collecting tray through the mesh of the square grid cluster mold and is recycled; (5) hot air drying, when the dryness of the mixed pulp in the square grid cluster mold reaches about 40%, the extrusion head moves up, the square grid cluster mold with the mixed pulp with certain strength in the mold is moved to the oven for hot air drying, the hot air temperature is between 180-220 degrees; (6) demolding, when the dryness of the mixed pulp in the mold reaches 97%, the square grid cluster mold is moved to the demolding punch, the punch moves down to punch out the mixed pulp in the square grid cluster mold, and the finished product square grid cluster is obtained.

2. The method of claim 1, wherein: The mulberry leaf pulp in step (2) is processed by blanching, cooling, coarse crushing and pulping.

3. The method of claim 1, wherein: The square grid cluster mold in step (3) is prepared according to actual production needs, which is a whole hole mold with certain specifications and shape.

4. The method of claim 1, wherein: The extrusion molding in step (4) has a mold pressure of 0.5-0.8 Mpa.

5. Paper square grid cluster prepared by the preparation method of any one of claims 1-4.

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