CN114750261A

CN114750261A - Method for manufacturing three-dimensional pattern type plaster mold

Info

Publication number: CN114750261A
Application number: CN202210379355.0A
Authority: CN
Inventors: 谢多体
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-07-15

Abstract

The application provides a manufacturing method of a three-dimensional pattern type plaster mold, and relates to the technical field of mold manufacturing. A method for manufacturing a three-dimensional pattern type plaster mold comprises the following steps: pouring and molding the female die by gypsum slurry, and then demolding to obtain a first intermediate die; carving patterns on the inner wall of the first intermediate die; placing a support inside the first middle die with the carved patterns; injecting the soft plastic cement slurry between the first middle die and the support, and demolding after molding to obtain a three-dimensional pattern type second middle die; and pouring gypsum slurry by using the second intermediate die, and demolding after molding to obtain the three-dimensional pattern gypsum die. The second intermediate mould with the three-dimensional patterns prepared by the manufacturing method can play the role of a master mould, and then the plaster mould with the three-dimensional patterns is obtained after the second intermediate mould is cast and molded by plaster slurry.

Description

Method for manufacturing three-dimensional pattern type plaster mold

Technical Field

The application relates to the technical field of mold manufacturing, in particular to a manufacturing method of a three-dimensional pattern type plaster mold.

Background

The plaster mold is the name of the mold in the plastic suction industry, before the plastic suction is made into a product, gypsum powder is generally added with water, the gypsum is solidified and molded in a semi-wet state, and the mold is obtained after demolding and drying. The wine jar, wine jar and flower pot are made by turning gypsum mould with mother mould, pressing with knife and rolling to obtain mud blank, printing some colored glaze on the mud blank, and firing to obtain planar pattern.

When the existing master model is used for turning over the plaster model, if the three-dimensional patterns are made on the master model and the plaster is poured, the master model and the plaster model are worn when the plaster model is removed, so that the plaster model can only have plane patterns after being pressed by knife pressing and rolling in the existing process, and cannot have the three-dimensional patterns.

Disclosure of Invention

The present application aims to provide a method for manufacturing a three-dimensional pattern type plaster mold, which can manufacture a plaster mold with a three-dimensional pattern.

The technical problem to be solved by the application is solved by adopting the following technical scheme.

A method for manufacturing a three-dimensional pattern type plaster mold comprises the following steps:

pouring and molding the female die by gypsum slurry, and then demoulding to obtain a first intermediate die;

carving patterns on the inner wall of the first middle die;

placing a support inside the first middle die with the carved patterns;

injecting soft plastic cement slurry between the first middle mold and the support, and demolding after molding to obtain a second middle mold with three-dimensional patterns;

and pouring gypsum slurry by using the second intermediate mould, and demoulding after forming to obtain the three-dimensional pattern gypsum mould.

Compared with the prior art, the embodiment of the application has at least the following advantages or beneficial effects:

the manufacturing method comprises the steps of firstly pouring and molding gypsum slurry on a female die to obtain a first intermediate die, carving any pattern on the first intermediate die, then placing a support on the inner side of the first intermediate die, injecting soft plastic slurry into the first intermediate die, and obtaining a second intermediate die with a three-dimensional pattern on the surface, wherein the second intermediate die is made of the soft plastic slurry, so that the surfaces of the first intermediate die and the second intermediate die are not abraded during demolding, the three-dimensional pattern is clear and visible, the soft plastic slurry is soft after molding, if the manufactured second intermediate die is large in size, the second intermediate die is easy to deform, and the support is arranged on the inner side of the second intermediate die, so that the problem of easy deformation can be solved, the manufacturing cost is also superior, and the support can be made of any hard and supportable material, the second intermediate mould with three-dimensional patterns can play the role of a master mould, and then the gypsum mould with three-dimensional patterns can be obtained after the second intermediate mould is cast and molded by gypsum slurry, and the second intermediate mould and the gypsum mould can not be worn in demoulding.

Furthermore, another manufacturing method of the application is that firstly a pattern is glued on the surface of the master model, then the master model is cast and molded by gypsum slurry, and then demoulding is carried out to obtain a first intermediate mould, because the pattern and the master model are only glued, and glue with poor gluing property is selected as a gluing layer, the pattern can be better separated, so that the pattern can be separated along with the first intermediate mould during demoulding, and after the pattern attached to the inner wall of the first intermediate mould is taken out, the inner wall of the first intermediate mould is concave to form the pattern, and after the same steps, gypsum mould with three-dimensional patterns can be obtained, and further the surface of a mud blank can also have three-dimensional patterns; and after the gypsum slurry is directly cast and molded on the female die, carving patterns on the obtained first intermediate die to form the positions with the different curves and the same works.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a female mold in an embodiment of the present application;

FIG. 2 is a schematic view of the inner wall pattern of the first intermediate mold in an embodiment of the present application;

FIG. 3 is a schematic view of a three-dimensional pattern on a second intermediate mold in the embodiment of the present application;

FIG. 4 is another schematic view of a solid pattern on a second intermediate mold in the embodiment of the present application;

FIG. 5 is a schematic view of a three-dimensional flower type gypsum mold of the embodiment of the present application;

FIG. 6 shows a clay body product with three-dimensional patterns manufactured by using the three-dimensional pattern type gypsum mold pressing of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to specific examples.

The embodiment of the application provides a manufacturing method of a three-dimensional pattern type plaster mold, which comprises the following steps:

pouring and molding the female die by gypsum slurry, and then demolding to obtain a first intermediate die;

carving patterns on the inner wall of the first middle die;

placing a support inside the first intermediate mold;

injecting the soft plastic cement slurry into the first middle die, and demolding after molding to obtain a three-dimensional pattern type second middle die;

and pouring and molding the second intermediate mould by gypsum slurry, and demoulding to obtain the three-dimensional pattern gypsum mould.

In the above embodiment, after the master mold is cast and molded by gypsum slurry, a first intermediate mold is obtained, any pattern can be carved on the first intermediate mold, and then after a support is placed on the inner side of the first intermediate mold, soft plastic slurry is injected into the first intermediate mold, so that the surface of the obtained second intermediate mold has a three-dimensional pattern, since the second intermediate mold is made of the soft plastic slurry, the surface of the first intermediate mold and the surface of the second intermediate mold are not abraded during demolding, the three-dimensional pattern is clearly visible, and after the soft plastic slurry is molded, the material is soft, if the manufactured second intermediate mold has a large size, the second intermediate mold is easy to deform, and the problem of easy deformation can be solved by arranging the support on the inner side of the second intermediate mold, the production cost is also advantageous, and the support can be made of any hard and supportable material, the second intermediate mould with three-dimensional patterns can play the role of a master mould, and then the gypsum mould with three-dimensional patterns can be obtained after the second intermediate mould is cast and molded by gypsum slurry.

The other implementation mode of the method is that a pattern is firstly glued on the surface of a female die, then the female die is cast and molded by gypsum slurry, and then the die is removed, so that a first intermediate die is obtained, the pattern and the female die are only glued, and glue with poor gluing property is selected for a gluing layer, so that the pattern can be better separated, the pattern can be separated along with the first intermediate die during the die removal, the pattern attached to the inner wall of the first intermediate die is taken out, the inner wall of the first intermediate die is concave to form the pattern, and the gypsum die with the three-dimensional pattern can be obtained after the same steps are carried out subsequently, so that the surface of a mud blank can also have the three-dimensional pattern; and after the gypsum slurry is directly cast and molded on the female die, carving patterns on the obtained first intermediate die to form the positions with the different curves and the same works.

In some embodiments of the present application, the method further includes a smoothing step, specifically: and before the mother die is poured with gypsum slurry, the mother die is subjected to smoothing treatment. After the female die is subjected to smoothing treatment, the surface of the first intermediate die copied by the female die is smoother, and the die can be removed more quickly during die removal.

In some embodiments of the present application, the surface of the master tool is coated with a release wax or a release agent during the smoothing process. After the surface of the master die is coated with the demolding wax or the demolding agent, the contact surface between the master die and the first intermediate die can be smoother, and the rapid demolding is facilitated.

In some embodiments of the present application, the support is made of a hard material. The support is made of hard materials, so that the second middle die which is soft in material and easy to deform can be supported, and the production cost can be saved.

In some embodiments of the present application, the soft plastic slurry is a silicone slurry. The silica gel slurry does not contain toxic and harmful substances, the second intermediate die is manufactured by using the silica gel slurry, the chemical property of the second intermediate die is stable, the service life of the second intermediate die can be longer than that of other materials after the second intermediate die is formed, the flexibility of the second intermediate die is higher, the touch feeling is comfortable, the second intermediate die is easy to clean, and the second intermediate die can be recovered to be clean only by being washed with clear water.

In some embodiments of the present application, the method further comprises a step of evacuating, specifically: and vacuumizing the silica gel slurry and then injecting the silica gel slurry into the first intermediate mold. After the vacuumizing is carried out, the second middle mold can be made to be smoother and bubble-free, if the bubbles exist, the toughness of the second middle mold is poor, the second middle mold is not durable enough, and if the second middle mold is not vacuumized, the bubbles are naturally discharged through the silica gel slurry, the forming time can be prolonged, and the production is not facilitated.

In some embodiments of the present application, a curing agent is added to the silica gel slurry, and the mixture is uniformly mixed and stirred before being injected into the first intermediate mold. The curing agent is added, so that the time for the silica gel slurry to solidify can be shortened, the forming time of the second intermediate die is further shortened, and certain advantages are achieved for production.

In some embodiments of the present application, the weight ratio of the silica gel slurry to the curing agent is 100: (2-4).

In some embodiments of the present application, the second intermediate mold is released after being left at 25 to 30 ℃ for 10 to 15 hours. After 10-15h, the silica gel slurry can be solidified and formed, so that the demolding is convenient.

In some embodiments of the present application, the second intermediate mold is removed and then dried in the shade for 24-28 hours. The second intermediate mold is used for copying the three-dimensional pattern type gypsum mold after being demoulded and dried in the shade for a period of time, so that the service life of the second intermediate mold can be prolonged.

The features and properties of the present application are described in further detail below with reference to examples.

Example 1

coating a layer of release agent on the surface of the female die for smoothing, pouring and molding the female die by gypsum slurry, and then demolding to obtain a first intermediate die, wherein the female die is shown in figure 1;

engraving patterns on the inner wall of the first intermediate die, as shown in fig. 2;

placing a support on the inner side of the first middle mold, wherein the support is made of cement;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the mixture between the first intermediate mold and a support, standing at 28 ℃ for 12 hours, and demolding to obtain a three-dimensional pattern type second intermediate mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 3;

and (3) drying the second intermediate mould in the shade for 26h, pouring gypsum slurry by using the second intermediate mould, forming, and demoulding to obtain the three-dimensional pattern type gypsum mould, wherein the three-dimensional pattern type gypsum mould is shown in figure 5.

Then, the gypsum mold with the three-dimensional patterns is pressed into a mud blank by the existing process through knife pressing and rolling, and the surface of the mud blank has the three-dimensional patterns, as shown in fig. 6.

Example 2

coating a layer of demolding wax on the surface of the female die for smoothing, pouring and molding the female die by gypsum slurry, and demolding to obtain a first intermediate die;

carving patterns on the inner wall of the first middle die;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first intermediate mold and a support, placing the silica gel slurry at 25 ℃ for 10 times, and demolding to obtain a three-dimensional pattern type second intermediate mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 2;

and drying the second intermediate mold in the shade for 24 hours, pouring gypsum slurry by using the second intermediate mold, forming, and demolding to obtain the three-dimensional pattern type gypsum mold.

Example 3

coating a layer of demolding wax on the surface of the female die for smoothing, pouring and molding gypsum slurry on the female die, and demolding to obtain a first intermediate die;

carving patterns on the inner wall of the first middle die;

placing a support on the inner side of the first middle die, wherein the support is made of an iron material;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first intermediate mold and a support, standing the silica gel slurry at 30 ℃ for 15 hours, and demolding to obtain the stereoscopic pattern type second intermediate mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 4;

and drying the second intermediate mould in the shade for 28 hours, pouring gypsum slurry by using the second intermediate mould, forming, and demoulding to obtain the three-dimensional pattern type gypsum mould.

Example 4

coating a layer of release agent on the surface of the female die for smoothing, pouring and molding gypsum slurry on the female die, and then demolding to obtain a first intermediate die;

carving patterns on the inner wall of the first middle die;

placing a support on the inner side of the first middle die, wherein the support is made of gypsum;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first middle mold and a support, standing at 26 ℃ for 11 hours, and demolding to obtain a three-dimensional pattern type second middle mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 2.5;

and drying the second intermediate mold in the shade for 25h, pouring gypsum slurry by using the second intermediate mold, forming, and demolding to obtain the three-dimensional pattern type gypsum mold.

Example 5

carving patterns on the inner wall of the first middle die;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first middle mold and a support, standing at 27 ℃ for 12 hours, and demolding to obtain a three-dimensional pattern type second middle mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 2.2;

and drying the second intermediate mould in the shade for 26 hours, pouring gypsum slurry by using the second intermediate mould, forming, and demoulding to obtain the three-dimensional pattern type gypsum mould.

Example 6

carving patterns on the inner wall of the first middle die;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first middle mold and a support, standing at 28 ℃ for 11 hours, and demolding to obtain a three-dimensional pattern type second middle mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 3.5;

and drying the second intermediate mould in the shade for 27 hours, pouring gypsum slurry by using the second intermediate mould, forming, and demoulding to obtain the three-dimensional pattern type gypsum mould.

Example 7

carving patterns on the inner wall of the first middle die;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first middle mold and a support, standing at 29 ℃ for 14 hours, and demolding to obtain a three-dimensional pattern type second middle mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 3.8 of the total weight of the mixture;

Example 8

carving patterns on the inner wall of the first middle die;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first middle mold and a support, standing at 29 ℃ for 14 hours, and demolding to obtain a three-dimensional pattern type second middle mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 3.2;

and drying the second intermediate mold in the shade for 27h, pouring gypsum slurry by using the second intermediate mold, forming, and demolding to obtain the three-dimensional pattern type gypsum mold.

Example 9

carving patterns on the inner wall of the first middle die;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first intermediate mold and a support, standing at 26 ℃ for 14 hours, and demolding to obtain a three-dimensional pattern type second intermediate mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 2.3;

Example 10

carving patterns on the inner wall of the first middle die;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first intermediate mold and a support, standing at 28 ℃ for 14 hours, and demolding to obtain a three-dimensional pattern type second intermediate mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 3.5;

Example 11

coating a layer of release agent on the surface of the female die for smoothing, gluing a pattern on the surface of the female die, pouring and molding the female die by gypsum slurry, and then demolding to obtain a first intermediate die;

taking out the patterns on the first middle die, and then recessing the patterns on the inner wall of the first middle die;

placing a support on the inner side of the first middle mould with the concave pattern, wherein the support is made of cement;

adding a curing agent into the silica gel slurry, mixing and stirring uniformly, vacuumizing the silica gel slurry, injecting the silica gel slurry between the first intermediate mold and a support, standing the silica gel slurry at 26 ℃ for 15 hours, and demolding to obtain the stereoscopic pattern type second intermediate mold, wherein the weight ratio of the silica gel slurry to the curing agent is 100: 3;

and drying the second intermediate mold in the shade for 26 hours, pouring gypsum slurry by using the second intermediate mold, forming, and demolding to obtain the three-dimensional pattern type gypsum mold.

In summary, the present application provides a method for manufacturing a three-dimensional pattern gypsum mold, the method comprises pouring gypsum slurry on a master mold to form a first intermediate mold, forming any pattern on the first intermediate mold, placing a support on the inner side of the first intermediate mold, injecting soft plastic slurry into the first intermediate mold, forming a second intermediate mold having a three-dimensional pattern on the surface thereof, wherein the second intermediate mold is made of soft plastic slurry, so that the first intermediate mold and the second intermediate mold are not worn during demolding, the three-dimensional pattern is clearly visible, the soft plastic slurry is soft after molding, the second intermediate mold is easy to deform if the second intermediate mold is large in size, and the support is disposed on the inner side of the second intermediate mold, thereby solving the problem of easy deformation, and having advantages in terms of production cost, the support can be made of any hard material which can be supported, the second intermediate mould with the three-dimensional patterns can play the role of a master mould, and the gypsum mould with the three-dimensional patterns can be obtained after the second intermediate mould is cast and molded by gypsum slurry.

Furthermore, the application also provides a manufacturing method of the three-dimensional pattern gypsum mold, which comprises the steps of firstly gluing a pattern on the surface of a female mold, pouring and molding the female mold by gypsum slurry, and then demolding to obtain a first intermediate mold, wherein the pattern is better separated along with the first intermediate mold due to the fact that the pattern and the female mold are only glued and the glue layer is made of glue with poor adhesiveness, and the inner wall of the first intermediate mold is concave to form the pattern immediately after the pattern attached to the inner wall of the first intermediate mold is taken out during demolding, and then the gypsum mold with the three-dimensional pattern can be obtained in the same way after the same steps are carried out subsequently, so that the surface of a mud blank can also have the three-dimensional pattern; and after the gypsum slurry is directly cast and molded on the female die, carving patterns on the obtained first intermediate die to form the positions with the different curves and the same works.

The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Claims

1. A method for manufacturing a three-dimensional pattern type plaster mold is characterized by comprising the following steps:

engraving patterns on the inner wall of the first intermediate die;

placing a support inside the first middle die with the carved pattern;

injecting soft plastic cement slurry between the first middle die and the support, and demolding after molding to obtain a three-dimensional pattern type second middle die;

and pouring gypsum slurry by using the second intermediate mould, and demoulding after forming to obtain the three-dimensional pattern type gypsum mould.

2. The method for manufacturing the three-dimensional pattern gypsum mold according to claim 1, further comprising a smoothing and flattening step, specifically: and before the gypsum slurry is poured on the female die, the female die is subjected to smoothing treatment.

3. The method of manufacturing a three-dimensional pattern gypsum mold according to claim 2, wherein the surface of the master mold is coated with a release wax or a release agent during the smoothing treatment.

4. The method of manufacturing the solid pattern gypsum mold according to claim 1, wherein the support is made of a hard material.

5. The method of claim 1, wherein the soft plastic cement slurry is a silica gel slurry.

6. The method for manufacturing the three-dimensional pattern gypsum mold according to claim 5, further comprising a vacuum-pumping step, specifically: and vacuumizing the silica gel slurry and then injecting the silica gel slurry into the first middle die.

7. The method for manufacturing the three-dimensional pattern gypsum mold according to claim 5, wherein a curing agent is added to the silica gel slurry, and the mixture is uniformly mixed and stirred and then injected into the first intermediate mold.

8. The method of manufacturing a textured plaster mold according to claim 7, wherein the weight ratio of the silica gel slurry to the curing agent is 100: (2-4).

9. The method for manufacturing the three-dimensional pattern gypsum mold according to claim 1, wherein the second intermediate mold is released after being left at 25-30 ℃ for 10-15 hours.

10. The method for manufacturing the three-dimensional pattern gypsum mold according to claim 1, wherein the second intermediate mold is released and then dried in the shade for 24-28 hours.