阅读说明：本技术 一种密度板模具加固与修补方法 (Method for reinforcing and repairing density board die ) 是由 许光阳 于 2019-11-07 设计创作，主要内容包括：本发明公开了一种密度板模具加固及其修补方法,其特征在于,在模具表面及四周侧面打磨并清理干净在涂刷配置的树脂胶,进入烘箱烘干,在取出打磨,清理干净在涂刷树脂胶,重复以上步骤8～10次；配置专用修补树脂胶,打磨修补的棱角,并清理干净,修补损坏棱角,进入烘箱,取出打磨即可,重复以上步骤直至模具棱角修补好。本发明的工艺先进合理,成本低,工艺操作简单,模具品质更可靠、稳定,减少维护频率与成本,使产品质量更稳定,增强了市场竞争力,产生了显著的经济效益。(The invention discloses a method for reinforcing and repairing a density board mold, which is characterized by comprising the following steps of polishing the surface and the peripheral side surfaces of the mold, cleaning resin glue which is coated and prepared, drying the resin glue in an oven, taking out the resin glue, polishing, cleaning the resin glue coated and coated, and repeating the steps for 8-10 times; and (3) preparing a special repairing resin adhesive, polishing the repaired edges and corners, cleaning up, repairing the damaged edges and corners, entering an oven, taking out and polishing, and repeating the above steps until the edges and corners of the mold are repaired. The invention has the advantages of advanced and reasonable process, low cost, simple process operation, more reliable and stable mould quality, reduced maintenance frequency and cost, more stable product quality, enhanced market competitiveness and obvious economic benefit.)

1. A method for reinforcing and repairing a density board die is characterized by comprising the following steps:

and (3) coating resin glue on the surface and the periphery of the mold:

step 1): polishing the surface and the peripheral side surfaces of the density board mold, polishing once by using 120# sand and polishing once by using 240# sand;

step 2): after polishing, blowing off dust on the surface and the peripheral side surface by using an air gun;

step 3): wiping and cleaning the surface and the peripheral side surfaces by using industrial alcohol;

step 4): blowing the surface and the peripheral side surfaces with an air gun until the surface is completely dried;

step 5): mixing resin adhesive, curing agent and accelerator according to the weight ratio of 1 kg: 7mL of: mixing the materials in a ratio of 6mL, and uniformly stirring;

step 6): uniformly brushing the substance prepared in the step 5) on the surface and the peripheral side surfaces of the mold;

step 7): putting the coated die into an oven;

step 8): repeating the step 1) to the step 7) for 8-10 times;

repairing the edges and corners of the die:

step 9): mixing 1kg of gypsum powder, resin adhesive, curing agent, accelerator and mold gel coat: 0.5 kg: 7mL of: 6mL of: mixing at a ratio of 0.15kg, and stirring;

step 10): polishing the damaged corner of the die once by using 120# sand skin and polishing the damaged corner once by using 240# sand skin

Step 11): cleaning up dust at the polished position;

step 12): coating the prepared substance in the step 9) on the damaged corner of the die for repairing;

step 13): putting the repaired mould into a drying oven;

step 14): and repeating the steps 10) -13) until the edges and corners of the mould are repaired.

2. The method for reinforcing and repairing the density plate mold according to claim 1, wherein the temperature of the oven in the step 8) and the step 13) is 45-55 ℃, and the temperature is kept for 2.5-3 hours.

Technical Field

The invention relates to a method for reinforcing and repairing a density board die, belongs to the technical field of dies, and is applied to the advertising signboard industry.

Background

At present, the application of an acrylic plastic suction process is more and more extensive, the acrylic plastic suction is formed by adopting a mold mechanical hot-press molding, the acrylic plastic suction has excellent wear resistance and stability, and is resistant to corrosion of various chemicals, so that the acrylic plastic suction is a novel environment-friendly material product and is loved by most people, the quality of the hot-press molded product is good, and the quality of the mold plays a crucial role. Most of acrylic plastic suction molds are made of density boards or wood materials, and the molds made of the density boards or the wood materials have the advantages of good productivity, high speed, low cost, low temperature resistance and the like. There are obvious advantages in time schedule. The defect density plate material mold has short service time, particularly the edges and corners of the mold are easy to damage, the surface of the mold is easy to crack and deform, and the blister product generates flaws such as impressions. In order to prolong the service life of the die, overcome the defects that the die is easy to deform and the edges and corners are easy to damage and reduce the manufacturing cost of the die, a novel method for maintaining the die is created, and the problems that the surface hardness of a density board or a wood die is low, the density board or the wood die is easy to deform and collide, the edges and corners are difficult to damage are solved, the service life of the die is prolonged, and the cost is saved.

Disclosure of Invention

The invention aims to solve the problems of prolonging the service life of a density plate die, repairing the defects of edges and corners of the die and the like, and ensuring more stable product quality.

In order to solve the problems, the technical scheme of the invention is to provide a method for reinforcing and repairing a density plate mold, which is characterized in that resin glue is coated on the surface and the peripheral side surfaces of the mold, and a mixture is prepared by repairing edges and corners.

Firstly, resin glue is coated on the surface and the periphery of a mould:

step 1): polishing the surface and the peripheral side surfaces of the density board mold, wherein the surface and the peripheral side surfaces are polished by using No. 120 sand and No. 240 sand;

step 2): after polishing, blowing off dust on the surface and the peripheral side surface by using an air gun;

step 3): wiping the surface and the peripheral side surfaces with industrial alcohol;

step 4): and (5) completely drying the alcohol after 3-5 minutes by blowing the air gun to the surface and the peripheral side surfaces.

Step 5): 1kg of resin adhesive, curing agent: 7mL, accelerator: 6mL of three proportioning materials are uniformly stirred;

step 6): uniformly brushing the substance prepared in the step 5 on the surface and the peripheral side surfaces of the mold;

step 7): putting the coated die into an oven;

preferably, the step 8 mold is placed in an oven, the oven temperature: keeping the temperature for 2.5 to 3 hours at the temperature of between 45 and 55 ℃;

step 8) after the mold is taken out, polishing the surface and the peripheral side surfaces of the mold once by using No. 120 sand skin, and polishing once by using No. 240 sand skin;

step 9): after polishing, blowing off dust on the surface and the peripheral side surface by using an air gun;

step 10): wiping the surface and the peripheral side surfaces with industrial alcohol;

step 11): and (5) completely drying the alcohol after 3-5 minutes by blowing the air gun to the surface and the peripheral side surfaces.

Step 12) uniformly coating the substance prepared in the step 5 on the surface and the peripheral side surfaces of the mold, and repeating the steps for 7-9 times according to the method;

method for repairing edges and corners of mold

Step 1): firstly, gypsum powder: 1kg of resin adhesive, 0.5kg of curing agent: 7mL, accelerator: 6mL, mold gel coat (orange): 0.15kg of five mixture ratio substances are evenly stirred;

step 2): polishing the damaged corner of the die once by using 120# sand skin and polishing the damaged corner once by using 240# sand skin

Step 3): cleaning up dust at the polished position;

step 4): repairing the substance prepared in the step 1 at the damaged part of the corner of the mould;

step 5): putting the repaired mould into an oven;

preferably, the step 5 mold is placed into an oven: oven temperature: keeping the temperature for 3-4 hours at the temperature of 45-55 ℃;

step 6): after the mould is taken out, the repairing part is firstly polished by using No. 120 sand skin, and then the repairing part is polished by using No. 240 sand skin;

step 7): if the first repair is not good, the steps are the same after the second repair.

By adopting the density plate surface treatment process provided by the invention, the problems of low surface hardness, easy deformation, easy collision and difficult damage of edges and corners of the surface of the die are solved, and the problem of unstable product quality is also solved.

Compared with the prior art, the invention has the beneficial effects that:

1. the surface hardness of the density plate is low, and the density plate is uniformly coated on the die through the prepared substances, so that the hardness and the smoothness of the die are increased, the service life of the die is prolonged, and the demolding of the product is more convenient.

2. The edges of the density board are easy to damage in the plastic suction process, and the service life of the die is prolonged by enhancing the hardness and the repairing method.

3. By adding the coating for preparing the substance, the deformation and the collision are effectively avoided, and the quality of the die is firmer.

The invention has the advantages of advanced and reasonable process, low cost, simple process operation, more reliable and stable mould quality, reduced maintenance frequency and cost, more stable product quality, enhanced market competitiveness and obvious economic benefit.

Drawings

FIG. 1 is a top view of a density plate mold of an example.

Detailed Description

In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.