KR101133401B1 - Mold for producing artificial marble - Google Patents

Abstract

The present invention relates to a mold for manufacturing artificial marble comprising a lower plate (2) having a molding space (23) and an upper marble (1) molded by pressing an artificial marble material filled in the molding space (23) using an external force. will be. The top plate 1 includes a first fabric forming a first layer 210, a first rubber sheet forming a second layer 212, a second fabric forming a third layer 214, and a fourth layer. A second rubber sheet comprising 216, between the first layer 210 and the second layer 212, between the second layer 212 and the third layer 214, and a third layer An adhesive layer 211 is formed between 214 and the fourth layer 216.

Artificial Marble, Fabric, Rubber Sheet, Adhesive

Description

Mold for manufacturing artificial marble {MOLD FOR PRODUCING ARTIFICIAL MARBLE}

The present invention relates to a mold for manufacturing artificial marble. In particular, the present invention relates to a mold for manufacturing artificial marble which can produce high quality artificial marble by minimizing deformation of the mold during manufacturing of artificial marble.

Conventional building wall materials have been used to cut stone into a certain shape and smoothly polish the surface thereof. However, due to various problems such as limited resources, environmental destruction, and transportation problems, artificial marble has recently been used a lot.

Artificial marble is blended with additives such as natural stone powder, minerals and / or resin chips, to bases such as acrylic resins, unsaturated polyester resins and / or epoxy resins, or cements, and additives such as pigments as necessary. It is an artificial composite that embodies the texture of natural stone.

Such artificial marble has a beautiful appearance and excellent workability, is lighter than natural marble, and has excellent strength and is widely used as various interior materials such as counter tables and building exterior walls.

Artificial marble is mainly manufactured by pressing the mold after filling the above-mentioned material in a constant mold.

The mold mainly consists of a bottom plate and a top plate, and the bottom plate and the top plate each have a multi-layer structure made of a combination of rubber and fabric.

This multi-layered form mainly consists of rubber layers and fabric layers, and the bonding of the rubber layers and fabric layers is made by stacking them and passing them between the pressurized rollers.

The mold is made of a predetermined size or more in order to increase the production yield, after making a marble of a predetermined size or more using a mold, and is used to cut it to a certain size.

However, when manufactured using the heat-pressing rollers as described above, the length of the width is limited, it is a situation to manufacture a mold by connecting the sheets produced in multiple layers to each other.

In this way, when the mold is manufactured by joining the sheets manufactured in multiple layers, not only the life thereof is reduced, but also the quality of the artificial marble that is easily deformed and manufactured may be degraded.

In addition, since the rubber layer and the fabric layers are attached only by thermal pressure without a separate adhesive, there is a case where the bonding between them occurs or is not ideally made.

That is, the artificial marble is filled in the space formed on the lower plate and the upper plate is pressed to obtain the artificial marble of a predetermined shape. In this case, when the thickness and bonding of each layer of the upper plate and the lower plate is not ideally made, deformation of the upper plate and the lower plate occurs, which makes it difficult to obtain high-quality artificial marble. In addition, there is a problem that the deformation occurs easily and the life is shortened.

Accordingly, an object of the present invention is to provide an artificial marble manufacturing template that can be made of artificial marble of high quality, so that the thickness and bonding of each layer of the top plate can be made ideally.

Still another object of the present invention is to provide a mold for preparing artificial marble, in particular, a press plate for manufacturing the top plate in a multi-layer manufacturing process, by adding an adhesive between the layers to increase the bonding reliability of each layer. .

Still another object of the present invention is to provide a mold for manufacturing artificial marble which can prevent deformation of a product by forming the upper plate by press press to form a body of sufficient size.

In one embodiment of the present invention in order to realize the object in the mold for manufacturing artificial marble comprising a lower plate having a molding space and the upper plate for pressing by pressing the external marble material filled in the molding space using an external force, The tops are

A first fabric forming a first layer;

A first rubber sheet member forming a second layer;

A second fabric forming a third layer; And

And a second rubber sheet forming a fourth layer, wherein an adhesive layer is formed between the first and second layers, between the third and fourth layers, and between the second and third layers. Provide a mold for making marble.

The first layer and the second layer are bonded with the adhesive therebetween by a first heat press operation, and the pressure of the first heat press operation may be 110-140 Kgf / cm ² .

In the state in which the first layer and the second layer are adhered, the adhesion of the third layer and the fourth layer and the adhesion of the second layer and the third layer are performed by a secondary heat press operation with an adhesive therebetween. The pressure of the second press operation may be 150-170 Kgf / cm ² .

The thickness of the rubber sheet forming the second and fourth layers may be 1.6-1.8 cm.

The adhesive may be made of N.N'-CM-PHENYLENE DIMALEIMIDE.

A fluorine or silicon coating layer may be further formed on the fourth layer.

According to another embodiment of the present invention, in the mold for manufacturing artificial marble comprising a lower plate having a molding space and an upper marble formed by pressing the artificial marble material filled in the molding space using an external force, the lower plate is

A first fabric forming a first layer;

A first rubber sheet member forming a second layer;

A second fabric forming a third layer;

A base made of a second rubber sheet forming a fourth layer;

A flange frame formed at an edge of the fourth layer, between the first and second layers, between the third and fourth layers, between the second and third layers, and between the fourth and french frames It provides a mold for manufacturing artificial marble, characterized in that the adhesive layer is formed.

According to the present invention, each layer is ideally arranged and the bonding of each layer is made reliably, so that deformation is minimized even if the mold is pressed during the manufacture of artificial marble. As a result, a high quality artificial marble is obtained and the reproducibility of the artificial marble having a consistent quality is improved.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a perspective view showing a mold for manufacturing artificial marble applied to the present invention, Figure 2 is a cross-sectional view of the upper plate shown in Figure 1 cut in the II-II 'direction. The drawings may be exaggerated than actual, and the thickness of each layer may also be exaggerated for clarity.

Referring to FIG. 1, the mold for manufacturing artificial marble includes a top plate 1 and a bottom plate 2, and the bottom plate 2 has a structure in which an artificial marble forming space 23 is formed.

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The top plate 1 of the artificial marble mold to which the present invention is applied consists of a multilayer structure. For example, as shown in FIG. 2, a first layer 210 made of fabric, a second layer 212 formed of rubber on the first layer 210, and the second layer 212. A third layer 214 formed on the fabric, and a fourth layer 216 made of rubber and formed on the third layer 214, and a coating layer formed on the fourth layer 216 of the rubber. Is made of a fifth layer 218.

The fabric of the first layer 210 may be any natural or human tissue. The fabric of the first layer 210 serves as a fixing member to prevent deformation of the second layer 212 made of rubber. Do it. In addition, the rubber of the second layer 212 is preferably made of, for example, ethylene-propylene terpolymer (hereinafter referred to as "EP rubber"), but is not necessarily limited thereto.

 And the fabric of the third layer 214 may be similarly natural or artificial. The fabric of this third layer 214 serves as a fixing member to prevent the rubber of the second layer 212 and the fourth layer 216 from being deformed.

The fifth layer 218, which is the coating layer, is made of a fluorosilicone coating, which helps to smooth the surface of marble in manufacturing artificial marble and to increase the life of the mold.

Here, an adhesive layer (b) may be formed between the fabric layers, that is, the first and third layers 210 and 214 and the rubber layers, that is, the second and fourth layers 212 and 216 according to one embodiment of the present invention. 211), the adhesive layer 211 serves to increase the bonding reliability between the rubber and the fabric to lower the defective rate during manufacturing. These adhesive layers use a so-called cam look adhesive. For example, the adhesive layers 211 are layers formed by an adhesive made of N.N'-CM-PHENYLENE DIMALEIMIDE, and the adhesive may use an adhesive having the product name "CILBOND80E" of Chemical Innovation Limited, based in the United Kingdom. .

Hereinafter, an example is given and demonstrated about the method of manufacturing the upper board of the artificial marble manufacturing mold which consists of the above.

According to the method for manufacturing the artificial marble according to the present invention, first, a first fabric constituting the first layer 210 and a second fabric constituting the third layer 214 are prepared first. Next, the adhesive is applied to the fabric to a certain thickness using a sprayer to dry the adhesive. In this case, the adhesive is applied only to one surface of the first fabric, and the adhesive is applied to both surfaces of the second fabric.

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In this case, the adhesive is an adhesive made of N.N'-CM-PHENYLENE DIMALEIMIDE, and the adhesive may use an adhesive having the product name "CILBOND80E" of Chemical Innovation Limited, Inc., based in the United Kingdom. However, the present invention is not necessarily limited thereto.

Subsequently, a first press operation is performed to bond the rubber constituting the second layer 212 on one side of the fabric of the first layer 210 to which the camlock adhesive is applied. In this case, the second layer 212 is made of a constant thickness, for example, 1.5-1.9cm, preferably 1.7cm, through the calendering operation of the rubber plate material and the rubber plate material is coated with the camlock adhesive The first layer 210 is placed on one side of the fabric and then bonded by hot pressing. At this time, the pressure of the press operation is 110-140Kgf / cm ² , preferably 130Kgf / cm ^{2 or} so.

Subsequently, a secondary press operation is performed to attach the fabric constituting the third layer 214 and the rubber sheet constituting the fourth layer 216.

That is, in this case, the thickness of the rubber sheet material is constant through calendering, for example, about 1.5-1.9 cm, preferably about 1.7 cm, and then for the fabric for the third layer 214 and the fourth layer 216. A rubber sheet is placed on the rubber sheet of the second layer 212.

Subsequently, the laminated structure is pressed through a thermopressing press to firmly attach the third layer 214 and the fourth layer 216 on the second layer 212. At this time, the pressure of the press work is 150-170Kgf / cm ² , preferably 160Kgf / cm ^{2 or} so.

Subsequently, the fifth layer 218 is formed by applying fluorine silicon over the entire surface of the mold made as described above. That is, fluorine silicon is coated on the rubber sheet of the fourth layer 216 to a predetermined thickness. This structure is then heated in an oven for 30 minutes to complete the manufacture of the top plate.

3 is a cross-sectional view showing the lower plate.

That is, the lower plate 2 is formed of a base 21 having a multilayer structure and a flange frame 22 formed on the base 21 to define the molding space 23.

The base 21 of the artificial marble mold to which the present invention is applied consists of a multilayer structure. For example, as shown in FIG. 3, the first layer 110 made of fabric, the second layer 112 formed of rubber on the first layer 110, and the second layer
A third layer 114 formed of fabric and formed on (112), a fourth layer 116 of rubber formed on the third layer 114, and a fourth layer 116 of rubber. It consists of a fifth layer 118, which is a coating layer.
The fabric of the first layer 110 may be any natural or human tissue. The fabric of the first layer 110 serves as a fixing member to prevent deformation of the second layer 112 made of rubber. Do it. In addition, the rubber of the second layer 112 is preferably made of, for example, ethylene-propylene terpolymer (hereinafter referred to as "EP rubber"), but is not necessarily limited thereto.

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 And the fabric of the third layer 114 can be either natural or artificial fabric as well. The fabric of this third layer 114 serves as a fastening member to prevent the rubber of the second layer 112 and the fourth layer 116 from being deformed.

The fifth layer 118, which is the coating layer, is made of a fluorosilicone coating, which helps to smooth the surface of marble in manufacturing artificial marble and to increase the life of the mold.

Here, the adhesive layer 111 between the fabric layers, that is, the first and third layers 110 and 114 and the rubber layers, that is, the second and fourth layers 112 and 116 according to an embodiment of the present invention. ) Are positioned, the adhesive layer 111 serves to increase the bonding reliability between the rubber and the fabric to lower the defective rate at the time of manufacture. This adhesive layer 111 uses what is called a cam look adhesive. For example, the adhesive layers 111 are formed by an adhesive made of N.N'-CM-PHENYLENE DIMALEIMIDE, and the adhesive may use an adhesive having a product name "CILBOND80E" of Chemical Innovation Limited, based in the United Kingdom.

The flange frame 22 is formed on the base 21, and the flange frame 22 is also made of EP rubber, and after being molded in a mold having a corresponding shape, the adhesive layer 111 is formed on the base 21. ) Are joined together.

Hereinafter, the manufacturing method of the lower plate in the mold for manufacturing artificial marble having the above structure will be described with reference to one embodiment.

According to the exemplary embodiment of the present invention, first, the base 21 is manufactured, and then the flange frame 22 is molded and bonded to each other using an adhesive.

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According to the manufacturing method of the lower plate base 21 of the artificial marble manufacturing mold according to the present invention, first prepare a first fabric constituting the first layer 110 and a second fabric constituting the third layer 114 layer first. . Next, the adhesive is applied to the fabric to a certain thickness using a sprayer to dry the adhesive. In this case, the adhesive is applied only to one surface of the first fabric, and the adhesive is applied to both surfaces of the second fabric.

In this case, the adhesive is an adhesive made of N.N'-CM-PHENYLENE DIMALEIMIDE, and the adhesive may use an adhesive having the product name "CILBOND80E" of Chemical Innovation Limited, Inc., based in the United Kingdom. However, the present invention is not necessarily limited thereto.

Subsequently, a first press operation is performed to bond the rubber constituting the second layer 112 onto one side of the fabric of the first layer 110 to which the camlock adhesive is applied. In this case, the second layer 112 is made of a rubber sheet material through a calendering operation to a constant thickness, for example, 1.5-1.9 cm, preferably 1.7 cm, and the rubber plate member is coated with the camlock adhesive. The first layer 110 is placed on one side of the fabric and then bonded by hot pressing. At this time, the pressure of the press operation is 110-140Kgf / cm ² , preferably 130Kgf / cm ^{2 or} so.

Subsequently, a secondary press operation is performed to attach the fabric constituting the third layer 114 and the rubber sheet constituting the fourth layer 116.

That is, in this case as well, the thickness of the rubber sheet is constant through calendering, for example, about 1.5-1.9 cm, preferably about 1.7 cm, and then for the fabric for the third layer 114 and the fourth layer 116. The rubber sheet member is placed on the rubber sheet member of the second layer 112.

Subsequently, the laminated structure is pressed through the heat press operation to firmly attach the third layer 114 and the fourth layer 116 on the second layer 112. At this time, the pressure of the press work is 150-170Kgf / cm ² , preferably 160Kgf / cm ^{2 or} so.

Next, the flange frame 22 is attached to the upper surface of the base 21 manufactured as described above.

To this end, after arranging the upper edge of the base 21 with sandpaper, the edges arranged with sandpaper are cleaned three times using a cleaning solution, for example, toluene.

Next, the camlock adhesive is applied twice to the edge of the base 21 and then dried.

Next, after arranging the bottom surface of the flange frame 22 formed in the mold with sandpaper, it is wiped with a cleaning agent, dried after applying a camlock adhesive.

Subsequently, the flange frame 22 is positioned at the edge of the base 21, and then placed in a mold and molded for 30 minutes.

After molding, fluorine silicon is applied over the entire surface of the base 21 and the flange frame 22 to form the fifth layer 118 (see FIG. 3). That is, fluorine silicon is applied to a predetermined thickness on the middle of the upper surface of the rubber plate of the fourth layer 116 of the base 21 and the upper surface and one side of the flange frame 22. This structure is then heated in an oven for 30 minutes to complete the manufacture of the bottom plate.

As described above, the artificial marble manufacturing mold according to the present invention is not manufactured by a multi-layer structure through a roll press operation, it is possible to produce a multilayer structure having a sufficient width because it is manufactured by a press press method, thereby forming a multi-layer structure This can be formed integrally. Therefore, there is an advantage that the deformation of the artificial marble is minimized and the quality of the product can be kept constant.

In addition, since the contact layer is formed by using a separate adhesive between the rubber layer and the fabric layer, the bonding reliability of each layer is improved, which has the advantage that the defect rate can be significantly reduced when manufacturing the mold.

Therefore, it can be effectively applied in the artificial marble manufacturing field of the present invention.

1 is a perspective view showing a mold for manufacturing artificial marble applied to the present invention.

FIG. 2 is a cross-sectional view taken along the II-II 'direction of the upper plate shown in FIG. 1.

3 is a cross-sectional view of the lower plate shown in FIG. 1 taken along the line II ′.

Claims (12)

In the mold for manufacturing artificial marble, comprising: a lower plate (2) having a molding space (23) and an upper marble (1) for pressing and molding the artificial marble material filled in the molding space (23) using an external force. (1) is A first fabric constituting the first layer 210; A first rubber sheet member forming a second layer 212; A second fabric forming a third layer (214); And A second rubber sheet forming a fourth layer 216, between the first layer 210 and the second layer 212, between the third layer 214 and the fourth layer 216, and the second layer A mold for manufacturing artificial marble, characterized in that an adhesive layer 211 is formed between the 212 and the third layer 214, respectively. The method of claim 1, wherein the first layer 210 and the second layer 212 are bonded with an adhesive therebetween by a first heat press operation, the pressure of the first heat press operation is 110-140Kgf. Mold for manufacturing artificial marble, characterized in that / cm ² . The method according to claim 2, wherein the adhesion of the third layer and the fourth layer 214 and the second layer 212, with the first layer 210 and the second layer 212 bonded thereto, Bonding of the third layer (214) is made by a secondary heat press operation with an adhesive therebetween, the pressure of the secondary press work is a mold for manufacturing artificial marble, characterized in that 150-170Kgf / cm ² . The mold for manufacturing artificial marble according to claim 1, wherein the thickness of the rubber sheet forming the second layer (212) and the fourth layer (216) is 1.6-1.8 cm. The mold for manufacturing artificial marble according to claim 1, wherein the adhesive layer (211) is made of N.N'-CM-PHENYLENE DIMALEIMIDE. The mold for manufacturing artificial marble according to claim 1, wherein a fluorine or silicon coating layer (218) is further formed on the fourth layer (216). In the mold for manufacturing artificial marble, which comprises a lower plate 2 having a molding space 23 and an upper marble 1 formed by pressing the artificial marble material filled in the molding space 23 using an external force, the lower plate (2) is A first fabric forming a first layer (110); A first rubber sheet member constituting the second layer 112; A second fabric forming a third layer 114; A base 21 made of a second rubber sheet forming the fourth layer 116; A flange frame 22 formed at an edge of the fourth layer 116 of the base 21, and between the first layer 110 and the second layer 112, a third layer 114 and An adhesive layer 111 is formed between the fourth layer 116, between the second layer 112 and the third layer 114, and between the fourth layer 116 and the flange frame 22. Mold for manufacturing artificial marble. The method according to claim 7, wherein the first layer 110 and the second layer 112 are bonded with an adhesive therebetween by a first heat press operation, the pressure of the first heat press operation is 110-140Kgf. Mold for manufacturing artificial marble, characterized in that / cm ² . The method of claim 8, wherein the adhesion of the third layer 114 and the fourth layer 116 and the second layer 112 with the first layer 110 and the second layer 112 bonded thereto. Bonding of the third layer (114) is made by a secondary heat press operation with an adhesive therebetween, the pressure of the secondary press work is a mold for manufacturing artificial marble, characterized in that 150-170Kgf / cm ² . The mold for manufacturing artificial marble according to claim 7, wherein the thickness of the rubber sheet forming the second layer (112) and the fourth layer (116) is 1.6-1.8 cm. The mold for manufacturing artificial marble according to claim 7, wherein the adhesive layer (111) is made of N.N'-CM-PHENYLENE DIMALEIMIDE. The fluorine or silicon coating layer 118 is further formed on the fourth layer 116 of the base 21 and the flange frame 22 provided at the edge of the fourth layer 116. Mold for manufacturing artificial marble, characterized in that.

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