TWI535551B - Molds for making thin layers and their molding methods - Google Patents

Description

Mold for manufacturing thin layer and molding method thereof

The present invention relates to a mold and a molding method, and more particularly to a mold for manufacturing a thin layer and a molding method thereof.

The existing method for manufacturing a thin layer perforated film is to use a heated material to be placed on a mold so that the material can pass through the shape of the mold and fit the negative pressure unit under the mold, so that the material can be deformed along with the mold. The structure required.

Furthermore, in order to make the product structure more changeable, a mold with a two-layer structure was developed, and each layer has its own unique structure, and the two layers of the structure are used to match each other. The pore film changes a variety of structures.

However, the existing method of manufacturing a double-layer or even a multi-layer mold, in addition to directly forming the structural level of the mold in an integrally formed manner, is also separately manufactured after being separately manufactured, but all of them face a common cost. The problem is that since the mold is mostly made of metal or alloy, when the product structure design is to be changed, the mold must be re-opened, which is a heavy burden for the producer.

Accordingly, it is an object of the present invention to provide a mold for making a thin layer. Thus, the present invention provides a mold for manufacturing a thin layer for forming a base layer into a thin layer, comprising a plurality of molding dies stacked one on another, each molding die having a plurality of perforations, at least one of which is formed Mainly made of a flexible non-metallic material, the base layer is placed on a molding die of the outermost layer, and can be forced to form the thin layer with respect to the molding die.

Preferably, the molding die comprises a first molding die and a second molding die.

The first molding die includes a plurality of first perforations, and the second molding die includes a plurality of second perforations, and the base layer is placed on the second molding die.

Preferably, the mold further comprises a stack of a third forming die disposed between the first forming die and the second forming die, the third forming die comprising a plurality of third perforations.

Preferably, the first molding die has an inner side and an outer side, and an inner side of the first molding die is adjacent to a negative pressure unit, and the second molding die is located outside the first molding die.

Preferably, the material of the second molding die is made of plastic, non-woven fabric, non-woven fabric containing metal fibers, cloth or paper.

Preferably, the second molding die is a soft mesh.

Preferably, the mold for making a thin layer is used in combination with a drum.

Another object of the present invention is to provide a molding method for producing a thin layer.

Thus, a molding method for manufacturing a thin layer of the present invention is to fix a second molding die having flexibility and including a plurality of second perforations to a first molding die including a plurality of first perforations, A base layer is attached to the second molding die to form a thin layer.

Preferably, the material of the second molding die is made of plastic, non-woven fabric, non-woven fabric containing metal fibers, cloth or paper.

Preferably, the second molding die is a soft mesh.

The effect of the present invention is that the second molding die has a flexible and replaceable property to cooperate with the first molding die as a mold for forming a thin layer, so when a new pattern needs to be replaced, the second replacement is required. Molding, without the need to redesign the entire mold as is conventional, will be more convenient and practical in application.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1 and FIG. 2, a first preferred embodiment of a mold for manufacturing a thin layer according to the present invention comprises a first molding die 2 and a second molding die 3. The first molding die 2 generally comes. It can be made of metal or plastic material. In this embodiment, it is described by a nickel alloy mesh plate. The first molding die 2 has an inner side 22 and an outer side 23, and includes a plurality of first through holes 21, thereby forming Mesh structure.

The second molding die 3 is a flexible body and is detachably stacked on the outer side 23 of the first molding die 2, and the second molding die 3 includes a plurality of second perforations 31, thereby forming a mesh structure. In the embodiment, the second molding die 3 is a soft and flexible screen mesh, but in use, it may be a polymer, a non-woven fabric, a metal fiber-containing non-woven fabric, a cloth or paper, etc., which is soft and can be used. Flexible material construction.

Furthermore, the second molding die 3 is bonded to the outer side 23 of the first molding die 2 by its flexible characteristics, and the specific fixing manner can be performed in any suitable manner and conveniently separated by the first molding die. For example, adhesion, pressing, assisting through other fixed components, etc., can be implemented.

Referring to Fig. 3, in the actual application, the first molding die 2 is formed into a plate shape or a cylindrical shape depending on the use of the machine table. In the present embodiment, the first molding die 2 is illustrated as a cylindrical shape. Wherein, the first molding die 2 is coupled to a roller 5, and a negative pressure unit 4 is disposed on the inner side 21 (or the roller 5) of the first molding die 2 (for example, a suction fan or the like to achieve equal efficiency) The apparatus) is thereby provided with a negative pressure by means of evacuating the first and second molding dies 2 and 3 which are stacked.

The thin layer 12 of the present invention is formed by attaching a heated base layer 11 to one side of the second molding die 3, specifically, when the base layer 11 is heated and softened by a heating unit 6, Through the negative pressure generated by the negative pressure unit 4, the base layer 11 located above the molding die is associated with the molding die and the perforation recesses thereof to form a thin layer 12, in other words, the base layer 11 not only corresponds to the first layer The two molding dies 3 and the second perforations 31 are formed in a recess, and are further recessed by the corresponding first molding dies 2 and the first perforations 21 of the second perforations 31 of the second molding die 3. It should be particularly noted that, since the second molding die 3 is in direct contact with the base layer 11, the mesh structure of the second molding die 3 correspondingly formed on the thin layer 12 is compared with the first molding die. The mesh structure of 2 is obvious. On the other hand, if the thickness of the thin layer 12 is large and it is difficult to form a hole through the negative pressure method, a water needle device 7 can be added to impact the water column to assist the thin layer 12 to form a hole. . In the present embodiment, the material of the base layer 11 may be polyethylene, but it may also be polypropylene, composite material or non-woven fabric.

After the foregoing operation is completed, the formed thin layer 12 can be removed from the mold, and in the process of removing, the formed thin layer 12 can be blown together with a drying unit 8, thereby The thin layer 12 is cooled and is more easily detached from the second molding die 3.

It should be noted that although the first embodiment and the second molding die 2, 3 are the same size in FIG. 3, in practical applications, the second molding die 3 may also be as shown in FIG. The total area of the second molding die 3 is made smaller than the total area of the first molding die 2, that is, only the second molding die 3 is attached to the first molding die 2, or alternatively, on the first molding die 2. A plurality of second molding dies 3 may be attached.

Referring to FIG. 5, a second preferred embodiment of a mold for manufacturing a thin layer according to the present invention is different from the foregoing embodiment in that, in addition to the first molding die 2 and the second molding die 3, a new one is added. The third molding die 32. In the present embodiment, the third molding die 32 is stacked between the first molding die 2 and the second molding die 3, and the third molding die 32 also includes a plurality of third perforations 33, thereby forming a mesh structure. Furthermore, the third molding die 32 and the second molding die 3 are the same as a flexible body, and may be, for example, a screen mesh or a flexible body containing metal fibers, thereby being attached to the first Between the molding die 2 and the second molding die 3.

The molding of the thin layer 12 is carried out in the same manner as the double-layer molding die disclosed in the foregoing embodiment, and thus will not be described herein.

It should be noted that, although the position where the molding dies are disposed on each other is disclosed in the embodiment, the position between the third molding die 32 and the second molding die 3 may be regarded as the actual use state. Interchange, and the size of the two is not limited to be equal to the first molding die 2.

In addition, in the first or second preferred embodiment, the base layer 11 is not limited to a single material, and may be formed by laminating two different materials, but all of them must have holes to achieve negative pressure forming, for example. In the operation, the non-woven fabric and the web may be superposed on each other. In operation, the two materials of the base layer 11 are firstly stacked, and then the two materials are fixed by heating or gluing to form a two-layer structure, and then the above-mentioned production. The method performs the forming of the thin layer 12.

In summary, the present invention is formed by laminating the second molding die 3 on the first molding die 2 as a mold for forming the thin layer 12, which is easier to replace than the conventional all-metal hard mesh plate. Furthermore, since the second molding die 3 is actually a soft mesh (such as a polymer or a non-woven fabric), it is not only flexible and replaceable, but also easy to manufacture and cost-effective, and also easy to make a thin layer. 12 change different styles during molding.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

11. . . Grassroots

12. . . Thin layer

2. . . First molding die

twenty one. . . First perforation

twenty two. . . Inside

twenty three. . . Outside

3. . . Second molding die

31. . . Second perforation

32. . . Third molding die

33. . . Third perforation

4. . . Negative pressure unit

5. . . roller

6. . . Heating unit

7. . . Water needle device

8. . . Drying unit

9. . . Separation auxiliary unit

Figure 1 is a perspective view showing a first preferred embodiment of the mold for manufacturing a thin layer of the present invention;

Figure 2 is an exploded view of the first preferred embodiment;

Figure 3 is a flow chart showing a preferred embodiment of the molding method for producing a thin layer of the present invention;

4 is a schematic view of a process manufacturing, illustrating another embodiment of the molding method of the present invention;

Figure 5 is a side elevational view of a second preferred embodiment of the present invention.

2. . . First molding die

twenty one. . . First perforation

twenty two. . . Inside

twenty three. . . Outside

3. . . Second molding die

31. . . Second perforation

Claims (10)

A mold for manufacturing a thin layer for forming a base layer into a thin layer, the mold comprising: a plurality of molding molds stacked on each other, each molding mold having a plurality of perforations, wherein at least one molding mold is mainly Made of a flexible non-metallic material, the base layer is placed on a molding die of an outermost layer, and is capable of forming a thin layer with respect to the molding die, wherein the molding die includes a first a molding die and a plurality of second molding dies, wherein a total area of each of the second molding dies is smaller than a total area of the first molding dies, and the second molding dies are respectively stacked on the first molding die, and the The base layer is placed on the second forming dies. The mold for manufacturing a thin layer according to claim 1, wherein the first molding die has a plurality of first perforations, and each of the second molding dies has a plurality of second perforations. The mold for manufacturing a thin layer according to claim 2, wherein the mold further comprises a third molding die disposed between the first molding die and the second molding die, the The three forming mold has a plurality of third perforations. The mold for manufacturing a thin layer according to claim 2, wherein the first molding die has an inner side and an outer side, and an inner side of the first molding die is adjacent to a negative pressure unit, and the second molding The dies are respectively located outside the first forming dies. The mold for manufacturing a thin layer according to the second aspect of the patent application, wherein the material of the second molding die is plastic, non-woven fabric, and gold-containing. Made of non-woven fabric, cloth or paper. A mold for manufacturing a thin layer according to the invention of claim 2, wherein each of the second molding dies is a soft web. The mold for manufacturing a thin layer according to any one of claims 1 to 6 is used in combination with a drum. A molding method for manufacturing a thin layer, wherein at least one second molding die having flexibility and including a plurality of second perforations is superposed and fixed on a first molding die including a plurality of first perforations, and a a base layer is attached to the second molding die to form a thin layer, wherein a total area of the second molding die is smaller than a total area of the first molding die, and a plurality of the first molding die are stacked on the first molding die The second molding die. The molding method for manufacturing a thin layer according to the invention of claim 8, wherein the second molding die is made of plastic, non-woven fabric, metal fiber-containing nonwoven fabric, cloth or paper. A molding method for producing a thin layer according to the invention of claim 8, wherein the second molding die is a soft mesh.