CN111016512A

CN111016512A - Forming method of polyurethane soft foamed rubber sculpture

Info

Publication number: CN111016512A
Application number: CN201911365869.5A
Authority: CN
Inventors: 张鹏; 李鑫鑫; 张本虎
Original assignee: Yangzhou Harbin Science And Technology Robot Research Institute Co ltd
Current assignee: Yangzhou Harbin Science And Technology Robot Research Institute Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-04-17

Abstract

The invention discloses a method for forming a polyurethane soft foam rubber sculpture, which comprises the following steps: 1. preparing a modeling framework based on drawing requirements; 2. arranging polyurethane soft foaming rubber adhesive joints; 3. fine trimming and surface treatment; 4. coloring to obtain the final product. The invention overcomes the defects that the existing wood carving is difficult and expensive in material, the copper carving needs to be provided with a plurality of professional workers, the working procedure is complicated, the cost is high, and the like; the problems of poor environment protection, poor elasticity, poor flexibility and the like of sculpture materials are solved, and the beneficial effects of enriching the sculpture technology and the modeling art technology and reducing the cost are achieved.

Description

Forming method of polyurethane soft foamed rubber sculpture

Technical Field

The invention belongs to the field of sculpture design and manufacture, and particularly relates to a forming method of a polyurethane soft foam rubber sculpture.

Background

Sculpture refers to the creation of visual and tangible artistic images with certain space by using various plastic materials (such as gypsum, resin, clay, etc.) or carved and engravable hard materials (such as wood, stone, metal, jade blocks, agate, aluminum, glass fiber reinforced plastic, sandstone, copper, etc.), so as to reflect the social life, express the aesthetic feeling of artists, and express the artistic ideal of aesthetic feeling, aesthetic feeling and aesthetic feeling. The carveable material is reduced through carving and engraving, and the plastic achieves the purpose of artistic creation through stacking the plastic material.

The existing sculptures can be divided into stone carving, wood carving, copper carving, jade carving, glass fiber reinforced plastic sculpture, ice carving, bone carving, tooth carving, lacquer carving, clay sculpture and the like; the carving and shaping are carried out on carving and shaping materials such as stone, wood, jade, resin, ice and snow, bones, ivory, soil and the like. The following three comparative representative sculptures have the following characteristics:

the copper carving is mainly used for expressing the beauty of modeling, texture and ornamentation, is mainly used for expressing mysterious religious themes with deterrence, and is suitable for sculpturing due to the reasons of texture, plasticity, specification uncertainty, rich color texture and the like of copper materials. However, the copper carving is generally made through several important processes such as metal smelting, forging, carving, gold plating, polishing, reddening, etc. The above procedures are relatively complicated, and the process is also very sophisticated.

And secondly, wood carving, which is divided into round carving, root carving and hollow carving, and is delicate and perfect. However, wood carving is important and expensive in terms of wood selection, and requires manual drying, natural drying, or simple manual drying of the material, and requires tools such as a variety of specialized gravers.

The glass fiber reinforced plastic carving is a composite material which is composed of synthetic resin as a base material and glass fiber and products thereof as reinforcing materials. Has the characteristics of light weight, corrosion resistance and relatively low cost. However, the glass fiber reinforced plastic product cannot be exposed to the sun and wind excessively, and is deformed, fragile and easy to crack for more than five years.

Disclosure of Invention

The invention aims to provide a method for forming a polyurethane soft foam rubber sculpture, which overcomes the defects that the existing wood carving is difficult and expensive in material, copper carving needs to be provided with a plurality of professional workers, the working procedures are complicated, the cost is high, and the like; the problems of poor environment protection, poor elasticity, poor flexibility and the like of sculpture materials are solved, and the beneficial effects of enriching the sculpture technology and the modeling art technology and reducing the cost are achieved.

A method for forming a polyurethane soft foam rubber sculpture comprises the following steps:

1. preparing a modeling framework based on drawing requirements;

2. arranging polyurethane soft foaming rubber adhesive joints;

3. finishing and surface treatment

4. Coloring to obtain the final product.

Preferably, the framework material in step 1 is angle iron, square tube and stainless steel.

Preferably, step 2 comprises the steps of:

(1) manufacturing a polyurethane soft foaming rubber block, and cutting the polyurethane soft foaming rubber into blocks of 15cm by 10cm by using a sponge knife;

(2) cutting the middle of the cut polyurethane soft foamed rubber block to a position which is half the thickness of the polyurethane soft foamed rubber;

(3) coating an adhesive on the surface of the cut opening, and wrapping the framework material in the polyurethane soft foamed rubber block through the opening to form a polyurethane soft foamed rubber adhesive joint;

(4) according to the skeleton modeling, the soft polyurethane foaming rubber layer covers the soft polyurethane foaming rubber adhesive joints, and the number of joints and the size of gaps between the soft polyurethane foaming rubber adhesive joints are strictly controlled.

Preferably, step 3 comprises the steps of:

(1) according to the modeling requirement, the outer surface of the integral polyurethane soft foamed rubber is trimmed, and the detail characteristics are depicted;

(2) the outer surface is coated with a layer of glass cement and covered with one or more layers of gauze.

Preferably, step 4 comprises the steps of:

(1) adding acid glass cement into a container, pouring gasoline, and adjusting to be pasty, wherein the ratio of the acid glass cement to the gasoline is 1: 2;

(2) adding a coloring agent in a proper proportion according to actual needs, and uniformly mixing;

(4) and (4) coloring the outer surface in the step (3).

The invention has the beneficial effects that: the polyurethane soft foaming rubber sculpture has the advantages of strong designability of materials, easy adhesion and molding, quick molding, convenient transportation, low cost, high fire-proof grade, no toxicity, environmental protection and regeneration, is different from the traditional sculpture, has soft surface, is suitable for various recreation places, and has high safety. The invention does not need to open the mould, has short construction time, does not lose the shape for the second time when the mould is reversed, has excellent ageing resistance and longer placing time than the ordinary glass fiber reinforced plastic sculpture outdoors.

Detailed Description

The present invention is further illustrated by the following specific examples.

Example 1

The embodiment discloses a method for forming a carpal tunnel sculpture, which comprises the following steps:

1. welding skeleton

(1) Determining a modeling framework of the carpal tunnel;

(2) because the carpal dragon sculpture can rust when placed in water for a long time and the mechanical structure needs to be protected, solid round steel stainless steel with the diameter of 6mm is selected as an encrypted structure;

(3) cutting and welding, namely selecting solid round steel with the diameter of 6mm, cutting the solid round steel into a proper length according to the shape, and welding an encrypted structure;

4) and checking the drawing, correcting the framework and ensuring that the shape is unchanged.

2. Making soft foamed polyurethane rubber adhesive contacts

(2) cutting the middle of the cut polyurethane soft foaming rubber block to a position of half of the thickness of the polyurethane soft foaming rubber;

(3) connecting round steel, smearing adhesive on the scribed position, and then wrapping the round steel in the scribed opening, wherein in order to shorten the solidification time, the round steel can be subjected to heating treatment to be quickly solidified;

(4) the soft polyurethane foaming rubber blocks are distributed, the neck of the carpal tunnel is slender, so that three circles of points are formed on the neck, the body is distributed according to turning points of the trend of the modeling, and the tail is conical; and (3) coating glass cement on the bonded polyurethane soft foamed rubber block, and then bonding. Preferably, a 2mm thick layer of soft foam polyurethane rubber is selected. Because the surface of the polyurethane soft foaming rubber is cellular, the strength and the flexibility of the product are enhanced by scraping and pasting gauze or elastic cloth with glass cement.

3. Modifying the body and deeply refining

After the whole polyurethane soft foaming rubber is laid, the defects and the leakage are checked and repaired according to the requirements of the body, the thickness is not increased enough when the body is fluctuated, and the thick place is trimmed by a self-made tool or scissors until the whole shape is completely molded according to a drawing. And then surface treatment is carried out. The wrist dragon sculpture has a plurality of grains on the body, and the following preparation method of the grains is as follows:

① the tool for making lines is electric soldering iron with different sizes, the heat generated by electrifying the tool can just scald the sponge to make the surface of the sponge have pit marks, and then the sponge is excessively modified to form the concave-convex lines on the body surface of the carpal tunnel.

②, for the surface required to be smooth, the surface is firstly polished and smoothed and then ironed by an electric iron.

(2) When the glass cement (preferably acid glass cement) is scraped, attention needs to be paid to joints, the joints between the polyurethane soft foam rubber layers are firstly repaired by the glass cement, and then gauze or elastic cloth is pasted on the polyurethane soft foam rubber layers coated with the glass cement. Meanwhile, the gauze or the elastic cloth is ensured to be attached and flat, and a layer of glass cement is coated after the glass cement is solidified.

4. Coloring

After the surface of the elastic cloth is coated with the glass cement with the ground color, the elastic cloth is ready to be colored according to the effect picture.

The method comprises the following specific steps:

(1) pouring the acidic glass cement into a container, then pouring gasoline, wherein the ratio of the glass cement to the gasoline is 1:2, and then mixing into paste;

(2) adding oil painting pigments in different proportions according to the effect;

(3) and (4) selecting a hand to color and spread a rough bottom color, and adopting a pen and a brush to color the detail to finally obtain a finished product.

Claims

1. A method for forming a polyurethane soft foam rubber sculpture is characterized by comprising the following steps:

1. preparing a modeling framework based on drawing requirements;

2. arranging polyurethane soft foaming rubber adhesive joints;

3. finishing and surface treatment

4. Coloring to obtain the final product.

2. The molding method according to claim 1, wherein the framework material in step 1 is selected from the group consisting of angle iron, square tube and stainless steel.

3. The molding method according to claim 1, wherein the step 2 comprises the steps of:

4. The molding method according to claim 1, wherein the step 3 comprises the steps of:

5. The molding method according to claim 1, wherein the step 4 comprises the steps of:

(4) and (4) coloring the outer surface in the step (3).