KR20220088963A - Production method of Soft molded Object use be Soft molding Cavity - Google Patents

Abstract

The present invention relates to a molding mold capable of molding a soft product such as silicone and a molding method through the same, and more particularly, it is possible to produce a practically usable soft molded product necessary for experiments, samples, and research purposes within a short time. In a molding mold of a soft propensity material and a method for manufacturing a soft molded product using the same,
An injection hole 110 is provided on one upper side, a cavity 101 capable of injecting a liquid soft molding F1 is provided at the center end, and a plurality of coupling element insertion holes 120 are spaced apart from each other on one side of the inner circumferential surface. A soft molded product for forming one mold unit 10 by combining the molded part 100 and the different mold parts 100 having a cavity 101 ′ of a shape corresponding to the mold part 100 . Forming a molded product 3D file by configuring the molding cavity, the concavo-convex portions 130 are provided to be spaced apart from the outer peripheral surface of the cavity 101, and a chamfer 150 can be further provided at the tip of the outer peripheral surface of the mold part 100 (S100), cavity creation step (S110), mold element composition step (S120), CAM data conversion step (S130), mold production step (S140), mold unit creation step (S150), soft molding compounding step (S160), A soft molded product is manufactured through the liquid soft molding insert step (S170), the bulge insert step (S180), and the mold part separation step (S190).
Therefore, it is possible to produce samples for actual use that can be used for experiments or research purposes within a short period of development, and there is an effect of obtaining a mold that can make a soft molded product with a complex shape without specialized equipment.

Description

Method of molding a soft molded product using a molding cavity of the soft molding {Production method of Soft molded Object use be Soft molding Cavity}

The present invention relates to a molding mold capable of molding a soft product such as silicone and a molding method through the same, and more particularly, it is possible to produce a practically usable soft molded product necessary for experiments, samples, and research purposes within a short time. It relates to a molding mold of a soft tendency material and a method for manufacturing a soft molded product using the same.

As 3D printers become popular, the development time for various items made of polymer materials, such as jigs, is being reduced. In addition, the results of the development are also being leveled upwards, so research, design, and development-based companies are increasing at home and abroad.

A variety of materials can be used for 3D printers, but hard polymers such as ABS and PLA are popularly used, and materials such as PP and TPU are used as soft materials. is being done

In particular, in the case of silicone, it is divided into a condensation type and an addition type according to the synthesis and curing method. In particular, the addition type method, which is a method of curing silicone by mixing two liquid silicones with different properties without using a curing agent, discharges harmful substances, etc. Because it does not lose weight, it is characterized by being widely used to make various products that themselves must come into contact with the human body, such as soap molds, menstrual cups, ice molds, and robots, or that can come into contact with or flow into human skin or organs. An object made of material has the advantage of being ready to use.

On the other hand, the production of products using 3D printers is conventionally limited to the production of prototypes, and in order to make products that can be used like actual products, it is characteristic that the product has to be molded for a long time. It is mainly used for the purpose of checking whether there is a defect in the design part or if there are any points to be improved, or for making display models or sculptures. On the contrary, because of these characteristics, editing or improvement of products can be made quickly, and since there are characteristics that can make products by using them as a frame of products that can create real products, liquids with similar properties and properties, including silicone, described above. It can be used as a mold that can be produced by putting soft moldings.

On the other hand, for a mold capable of producing a plurality of specific products by using liquid silicone, reference may be made to the manufacturing method of a lipstick silicone mold using a mold for molding a lipstick silicone mold published in Korean Patent Publication No. 10-2038326.

This document relates to a method for manufacturing a lipstick silicone mold using a mold for forming a lipstick silicone mold. Specifically, the structure is simplified by configuring a two-stage structure in which an upper mold and a lower mold are arranged up and down, and a plurality of parts are provided in the upper mold. It is described that there is a feature that can improve workability and productivity compared to the conventional four-stage mold by forming four forming core pins in a line and forming a plurality of forming cavities in a line in the lower mold corresponding to this.

On the other hand, in order to produce a silicone product as described above, in order to prevent deterioration of the quality of the finished product due to the generation of air bubbles that may occur in the process of mixing the silicone, a mold containing silicone is placed in a vacuum casting machine and the inside is heated to release the silicone. It is processed by the 'vacuum molding' technique that allows it to be heated in a short time. For the technology related to the above-described vacuum molding technique, you can refer to the mold of the vacuum casting machine published as Korean Utility Publication No. 20-0288769.

When a silicone product is manufactured through the conventional vacuum molding technique, silicone defoaming occurs naturally, while the problem of not filling all of the silicone in the mold in the mold by air bubbles can be solved, so it can be used universally, but The technique has a problem in that the unit cost is high and the equipment called a vacuum molding machine must be equipped, so that consumers who wish to manufacture must bear a lot of cost and produce the product.

1. Republic of Korea Patent Publication No. 10-2038326. 2. Republic of Korea Registered Utility Model Publication No. 20-0288769. 3. Republic of Korea Registered Utility Model Publication No. 20-0376230. 4. Chinese Laid-Open Patent Publication No. CN 107650312A.

The configuration of the present invention, its action, and the combination are to solve the above-described problems in the following way.

First, it is possible to produce practical samples that can be used for experiments or research purposes within a rapid development period.

Second, it is possible to obtain a mold that can make a soft molded product with a complex shape without specialized equipment,

The third is to obtain a method for molding a soft molded product using a molding cavity of a soft molded product capable of making a plurality of molded products through repeated use.

As shown in FIG. 1, the configuration of the present invention for solving the above-described problems is a mold part having a cavity 101 at the center end that can make a soft molded product by injecting a liquid soft molded product F1 ( 100) is provided. An injection hole 110 and a single or a plurality of overflows 200 are further provided on one upper side of the mold part 100, and a plurality of coupling element insertion holes 120 are provided on one inner peripheral surface of the mold part 100. These are provided to be spaced apart from each other, and the concave-convex portion 130 is further provided to be spaced apart from the outer circumferential surface of the cavity 101 .

In addition, a chamfer 150 is further provided at the distal end of the outer peripheral surface of the mold part 100 to facilitate insertion of the lever L or the like when the mold is removed.

The mold part 100 having the above shape is formed by combining the corresponding mold part 100 ′ having the cavity 101 ′ of the corresponding shape, as shown in FIG. 1A , to form a single mold unit 10 . When the mold unit 10 is separated into each mold part 100 and 100 ′, as shown in FIG. 2 , the soft molded product F1 is cured to make the molded product F2 appear. have.

At this time, when the concave-convex part 130 is cured in a state in which the liquid soft molding F1 is inserted into the cavity 101 and molding of the product is completed, mold sludge is generated on the outer peripheral surface of the soft molding F1. Cavity 101 by preventing the mold sludge from forming or allowing it to be easily removed even when mold sludge occurs, and at the same time, by allowing the coupling surface to be corrected when the respective mold parts 100 and 100 ′ are coupled to each other. It can play a role in sorting.

On the other hand, a single or a plurality of overflows 200 are further provided on one side of the upper portion spaced apart from the mold part 100 provided with the injection hole 110 to be connected to the upper one side of the cavity 101 . The overflow 200 allows the molded body to come out when all of the molded body is inserted into the cavity 101 and the soft molded article F1 in the liquid state is filled, so that the soft molded article in the liquid state ( F1) is also an element to know that all of the filling, and is an element that serves as a vent through which the air inside the cavity 101 can escape when the molded object is filled in the cavity 101.

The flow having such a role may be used as a form to inform that the molded body has been completely injected into the cavity 101 , and the flow used in this form is provided in the form shown in FIG. 4 . A single or a plurality of charging flows 210 are further provided on one side of the lower end of the mold part 100 so as to be connected to the lower one side of the cavity 101, which is when the molding is filled to the lowermost end of the cavity 101. In order to inform the builder of this, the present invention can solve the problem at hand by allowing a part of the molded body to flow out through the charging flow 210 .

The present invention to which the above configuration, action, and combination are applied can obtain the following effects.

First, it is possible to produce practical samples that can be used for experiments or research purposes within a rapid development period.

Second, it is possible to obtain a mold that can make a soft molded product with a complex shape without specialized equipment,

Third, it is possible to mold a soft molded product using a molding cavity of a soft molded product capable of making a plurality of molded products through repeated use.

1 is an exploded view showing the combination with the basic configuration constituting the molding cavity mold of the soft molding (F1) for the present invention in the combination of the shape and configuration of the present invention.
Figure 1a is a perspective view showing a shape in which the molding preparation of the soft molded product is completed by combining a plurality of mold parts 100 and 100' in a preferred embodiment of the present invention.
1b is a partial shape diagram showing a shape in which a separation groove 109 is further provided at one end of the outer circumferential surface of the mold part 100 in a preferred embodiment of the present invention.
Figure 2 is an embodiment showing the shape in which the molded product (F2) is injected by removing the mold part 100 on the front side in a preferred embodiment of the present invention.
Figure 2a is a partial cross-sectional view showing the combination of the shape and the configuration of the coupling element insertion hole 120 in the combination of the shape and configuration of the present invention.
3 is a partial cross-sectional view showing the combination of the shape and the configuration of the injection port 110 and the overflow 200 in the combination of the shape and configuration of the present invention.
Figure 3a is an embodiment showing the shape of inserting the liquid soft molding (F1) by inserting the injector in the bulge (115) of the injection port 110 in a preferred embodiment of the present invention.
Figure 4 is a partial cross-sectional view showing the combination of the shape and the configuration of the charging flow 210 in the combination of the shape and configuration of the present invention.
Figure 4a is an embodiment showing the shape of installing a stopper 290 for preventing the outflow of the soft molding from the charging flow 210 in a preferred embodiment of the present invention.
Figure 4b is a partial view showing the coupling between the shape and configuration of the stopper 290 in a preferred embodiment of the present invention.
5 is a partial cross-sectional view showing a shape formed by connecting the branch flow 221 to the branch 220 in combination of the shape and configuration of the present invention.
Figure 5a is an embodiment showing the shape of installing the stopper 290 for preventing the outflow of the soft molding from the branch flow 221 in a preferred embodiment of the present invention.
Figure 5b is an embodiment of the present invention, in a preferred embodiment of the present invention, the branch flow 221 is not formed in the branch portion 220 is filled with the soft molding (F1) is an embodiment showing a shape in which the bubble (U) is generated.
6 is a partially enlarged cross-sectional view showing in detail the formation of the blade step 131 and the blade groove 132, the partition wall 135 and the example of the combination in the combination of the shape and configuration of the present invention.
7 is an exemplary diagram illustrating a shape outputted through a 3D printer by forming an overhang 105 on the outer circumferential surface of the mold part 100 according to a preferred embodiment of the present invention.
Figure 7a is an embodiment showing a state in which the support (S) is formed when outputting the mold part 100 in which the overhang 105 is not formed through a 3D printer in a preferred embodiment of the present invention.
Figure 7b is an embodiment showing a state in which the support (S) is not formed when the mold part 100 in which the overhang 105 is not formed is output through a 3D printer in a preferred embodiment of the present invention; .
8 is a flow chart showing the entire sequence of a method for forming a soft molded product using a mold unit 10 capable of molding the soft molded product F1 according to a preferred embodiment of the present invention.
9 is an exemplary view showing a method of forming the cavity 101 through the formed 3D file formation according to a preferred embodiment of the present invention.
Figure 9a is an embodiment showing an embodiment of forming the cavity 101 through a 3D file with the block (B1) as a body in a preferred embodiment of the present invention.
10 is an embodiment showing a shape in which the soft molding F1 is filled in the bulge 115 formed in the injection hole 110 of the mold unit in which the injection of the soft molding F1 is completed in a preferred embodiment of the present invention do.
11 is an embodiment showing the shape of taking out the molded product F2 by removing the mold part 100 after separating the mold unit 10 in accordance with a preferred embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms and meanings used are terms selected in consideration of the functions, actions, and configurations in the embodiment with reference to the drawings, and interpretation may vary depending on the intention or precedent of the user and the implementer. When specifically defined in the present specification, it follows the definition, but if there is no specific definition, it should be interpreted as the meaning commonly used by those skilled in the art, and some symbols in the drawings explaining the configuration and operation combination of an embodiment of the present invention may be omitted, but in general, the location of parts, etc., can be interpreted within the scope of the present invention based on the configuration and operation examples described below to achieve the present invention.

In addition, in attaching reference to the drawings corresponding to the contents to be described, in order to provide concise and clear delivery of the contents corresponding to the specific paragraphs to be described, each symbol described in the drawings has been described as a group consisting of a plurality of elements. , Among these, the mold unit 10, the concave-convex part 130, the mold part 100, the coupling element insertion hole 120, the injection hole 110, and the stopper part 290 to be specified below are several in some drawings. It can be seen as abbreviated description of the appendages of one large component.

In the configuration according to the present invention, as shown in FIG. 1 , the mold part 100 having a cavity 101 at the center end for making a soft molded product by injecting a liquid soft molded product F1 is provided. An injection hole 110 and a single or a plurality of overflows 200 are further provided on one upper side of the mold part 100, and a plurality of coupling element insertion holes 120 are provided on one inner peripheral surface of the mold part 100. These are provided to be spaced apart from each other, and the concave-convex portion 130 is further provided to be spaced apart from the outer circumferential surface of the cavity 101 .

In addition, a chamfer 150 is further provided at the distal end of the outer peripheral surface of the mold part 100 to facilitate insertion of the lever L or the like when the mold is removed.

The mold part 100 having the above shape is formed by combining the corresponding mold part 100 ′ having the cavity 101 ′ of the corresponding shape, as shown in FIG. 1A , to form a single mold unit 10 . When the mold unit 10 is separated into each mold part 100 and 100 ′, as shown in FIG. 2 , the soft molded product F1 is cured to make the molded product F2 appear. have.

At this time, when the concave-convex part 130 is cured in a state in which the liquid soft molding F1 is inserted into the cavity 101 and molding of the product is completed, mold sludge is generated on the outer peripheral surface of the soft molding F1. Cavity 101 by preventing the mold sludge from forming or allowing it to be easily removed even when mold sludge occurs, and at the same time, by allowing the coupling surface to be corrected when the respective mold parts 100 and 100 ′ are coupled to each other. It can play a role in sorting.

On the other hand, as shown in FIG. 1B , a separation groove 109 may be further provided at one end of the inner circumferential surface of the mold part 100, and the separation groove 109 is a lever (L), etc. It is possible to make it easier to remove the mold part 100 (100 ′) by putting it.

The mold parts 100 and 100 ′ engage each other through the concave-convex portion 130 to engage and couple the coupling surfaces, and then through the coupling element insertion hole 120 to maintain the coupling through mechanical coupling elements such as screws or rivets. can At this time, the coupling element insertion hole 120 has a hexagonal through-hole 121 at its front end as shown in FIG. 2A , and the hexagonal through-hole 121 at the front end of the side corresponding to the front end of the hexagonal through-hole 121 . ) is provided with a cylindrical through hole 122 that forms a diameter smaller than the diameter. The hexagonal through-hole 121 is a hole into which a nut can be inserted, and after inserting the nut into the front end of the coupling element insertion hole 120, a bolt is inserted into the coupling element insertion hole 120' of the opposite mold part 100'. is inserted so that they can be combined with each other. At this time, in the cylindrical through-hole 122, a gap is formed in which the bolt and the nut can be coupled in a state in which the bolt and the nut are inserted into the coupling element insertion hole 120 by the formed distance, and the coupling interval between the bolt and the nut thus formed is If the length of the cylindrical through hole in the coupling element insertion hole 120 is well set at the design stage, the bolt inserted into the coupling element insertion hole 120` of the opposite mold part 100` is coupled to the nut even if only the tip end is coupled to the nut. Since the mold part 100 and 100 ′ can become the mold unit 10 by maintaining the coupling, the time required for coupling can be shortened.

The mold unit 10 combined with the above elements can insert a molded body forming the liquid molded product F1 through the injection hole 110 provided at the upper end. At this time, in inserting the molded body, as shown in FIG. 3 , a bulge 115 is further provided on the upper portion of the injection hole 110 , and presser feet 119 are further provided on both side ends of the bulge 115 . The presser foot 119 is also an element that can be used as a temporary handle in the process of molding the product by the installer performing the construction, and inserts the molded body by inserting the injector I into the bulge 115 as shown in FIG. 3A . It is an element that allows the injection port 110 to be fixed with a finger so that the injection port 110 is not detached while maintaining the coupling with the injector (I).

On the other hand, a single or a plurality of overflows 200 are further provided on one side of the upper portion spaced apart from the mold part 100 provided with the injection hole 110 to be connected to the upper one side of the cavity 101 . The overflow 200 allows the molded body to come out when all of the molded body is inserted into the cavity 101 and the soft molded article F1 in the liquid state is filled, so that the soft molded article in the liquid state ( F1) is also an element to know that all of the filling, and is an element that serves as a vent through which the air inside the cavity 101 can escape when the molded object is filled in the cavity 101.

The flow having such a role may be used as a form to inform that the molded body has been completely injected into the cavity 101 , and the flow used in this form is provided in the form shown in FIG. 4 . A single or a plurality of charging flows 210 are further provided on one side of the lower end of the mold part 100 so as to be connected to the lower one side of the cavity 101, which is when the molding is filled to the lowermost end of the cavity 101. In order to notify the installer of this, a part of the molded body may flow out through the charging flow 210 .

On the other hand, in order to prevent the formation of a non-molded surface on the soft molded product F1 in the liquid state by flowing out of the molded body through the charging flow 210, one end of the charging flow 210 has a diameter of the charging flow 210. A stopper insertion hole 211 of a larger diameter is further provided, and the tip of the charging flow 210 can be blocked by inserting the stopper portion 290 into the stopper insertion hole 211 as shown in FIG. 4A. have.

On the other hand, the charging flow 210 configured as described above should be formed only in one mold part 100 or may be formed together in the opposite mold part 100 ′.

The stopper 290 is provided with a flow stopper 291 at the front end as shown in FIG. 4b, and a plurality of fitting protrusions 292 on the front side of the stopper 290 provided with the flow stopper 291. ) is further provided. The fitting protrusion 292 is adjacent to the inner circumferential surface of the stopper insertion hole 211 and the flow stopper 291 blocks the front of the charging flow 210 from the fluid pressure generated due to the outflow of the molded body. There are features that can keep you connected. Meanwhile, a grip 295 may be further added to the rear surface of the stopper 290 provided with the flow stopper 291 . This is an element provided so that the installer can hold the stopper 290 well, and after confirming that the molded object is inserted to the end of the cavity 101 through the charging flow 210, the charging flow 210 through the stopper 290 ) so that it can be easily blocked.

As described above, the overflow 200 and the charging flow 210 are used as a means to inform that the molded body is all inserted into the cavity 101 to form the soft molded product F1 As long as the combination between the embodiment and the configuration is achieved On the other hand, it can also be used to suppress the generation of air bubbles when the molded body is all inserted into a specific site, and it will be described in more detail through the bar shown in FIG. 5 .

In the cavity 101, a branch of a form in which a single or a plurality of one or more of the side surfaces specified alternatively from the main body of the cavity 101 to be originally formed are extended and the end thereof extends independently to the upper side of the cavity 101 When the portion 220 is further formed, the liquid soft molding F1 should extend to the top of the branch portion 220 and fill the branch portion 220 . However, as shown in FIG. 5B , there is a problem in that a non-formed surface may be formed by the bubbles U remaining at the top of the branch 220, so the soft molding due to the formation of the bubbles U ( The mold part 100 provided with the branch part 220 to prevent the non-molding surface from being formed in F1), while allowing the liquid soft molded material F1 to be filled to the end of the branch part 220. A branch flow 221 connected to the branch 220 should be further provided on an outer part of the .

On the other hand, the branch flow 221 is also filled with all the molded bodies in the branch 220 to form the soft molded product F1 and then to block it to prevent the molded body from leaking more than necessary. Similarly, a stopper insertion hole 211 ′ may be further provided at the tip of the branch flow 221 to block the branch flow 221 through the stopper 290 .

6 is a partially enlarged cross-sectional view illustrating the configuration and shape of the concave-convex portion 130 and detailed elements by combination thereof. A parting line is generated on the outer peripheral surface of the soft molded product F1 due to the coupling and detachment of the mold part 100 inevitably in the hardened soft molded product F1, and mold sludge is formed on the outer peripheral surface of the parting line for additional processing In order to prevent this from occurring, the concave-convex portion 130 provided to be spaced apart from the outer circumferential surface of the cavity 101 of the mold portion 100 is formed in a shape selected from either the blade step 131 or the blade groove 132 .

In the mold part 100 ′, which is matched with the mold part 100 , the concave-convex part 130 of the mold part 100 is selectively formed on the blade step 131 or the blade groove 132 , which corresponds to the corresponding element. is provided as an option.

On the other hand, when the mold part 100 is outputted through a 3D printer, an output tolerance of 0.05 mm to 0.3 mm occurs when a conventional 3D printer uses a nozzle having a lamination thickness of 0.4 mm. The blade step 131 and the blade groove 132 should be formed with a certain tolerance for coupling.

Therefore, the blade groove 132, which is formed to have a relatively large size compared to the blade step 131 due to the step, is spaced apart from one end of the inner peripheral surface of the blade groove 132 toward the cavity 101 and the outer peripheral surface of the cavity 101. A partition wall 135 is formed at the interval, and the partition wall 135 is preferably limited to have a dimension of 0.3 mm to 0.7 mm, so that a dense and clean parting line can be displayed.

However, when the blade step 131 and the blade groove 132 are formed with a step difference, a part of the liquid soft molding F1 enters into the gap due to the step, and then a mold on the outer peripheral surface of the hardened soft molding F1 Sludge is formed. Therefore, in order to prevent this, the blade step 131 is designed in an oval shape protruding in the up and down directions, so that the upper and lower adjacent surfaces of the blade groove 132 are not stepped in such a way that the uppermost end of the blade step 131 is By allowing the blade groove 132 to be completely in close contact, mold sludge may not be formed on the outer circumferential surface of the soft molding F1 or it may be easily detached.

The mold part 100 made of the above configuration and its combination can further shorten the manufacturing time through output when outputted through a 3D printer. As shown in FIG. 7 , the overhang 105 can be formed by a predetermined distance on the edge of the outer peripheral surface of a part or the whole of the mold part 100, and the 'predetermined distance' is the overhang 105. It is sufficient if the distance to the extent that the mold part 100 does not interfere with the minimum outer wall thickness required to form the cavity 101 when forming the cavity 101 .

When outputting through a 3D printer, overhang in outputting through a 3D printer can create a product without creating a support (S) on the upper surface of the bed (B) of the 3D printer. means angle. On the other hand, the support (S) is separated from the bed (B) of the 3D printer and spaced apart from the bed (B) so that a specific forming surface formed with a long hole can be smoothly output when an object is output through a 3D printer. It means a kind of reinforcing bar that prints together as much as the specified distance, and the more the support (S) is formed, the time required for printing and the amount of raw material used increase. In some cases, the outer wall is not completely sealed and there is a gap through which fluid can flow inside, which can cause problems when manufacturing products required for engineering.

In this way, the overhang 105 generated in the mold part 100 means a surface that protrudes out of the outer peripheral surface of the mold part 100 and 100 ′. The mold part 100 in which the overhang 105 is not formed may have a shape as shown in FIG. 7A . If the overhang 105 is not formed as shown in FIG. 7A , as shown in FIG. 7B , the support S has to be generated, but the output is in a normal plane, so the printing time and raw materials used may be consumed a lot. Therefore, as shown in FIG. 7, the mold part 100 is output with a 3D printer by applying the overhang 105 to the outer peripheral surface of the mold part 100, which does not necessarily have to be created from the bottom in the stage of instrument design. When it is done, it is possible to reduce the output time required for the output, and to form a self-reinforcing surface, insert the lever (L) into the separation groove 109 or the chamfer 150 as shown in FIG. When the parts 100 and 100 ′ are separated from each other, the mold parts 100 and 100 ′ can be separated and reused without damaging each other.

On the other hand, the preferred angle of formation of the overhang 105 is preferably an angle of 25˚ to 75˚ from the vertical (90˚) of the bed (B), but in general, the best overhang is 45˚. A machining surface of (105) may appear.

The present invention, which is made of the above configuration and combination and its action, is made by sequentially operating the sequence of one embodiment as follows.

The order of one implementation to be described below covers not only the simple actions of the operator or user, but also the method of performing through artificial intelligence, a machine, or a program.

First, a molding 3D file forming step (S100) of forming a 3D file of a shape requiring molding should be performed.

Forming a 3D file of a molding refers to the step of converting a file of a molding desired to be formed into 3D. In addition to human actions, the 3D file (P) is created through an automated program or mechanical device such as a 3D scanner. The creation method is also overlooked. When the 3D file (P) is saved, the file extension must be in a format that can be edited when viewed through a design or design tool. After the operator 3D the product desired to be molded, a cavity creation step (S110) that can be converted into a cavity 101 that can extract an injection molded product according to the shape of the file based on the 3D file is carried out (S110) .

The creation of the cavity 101, as shown in FIG. 9, after reading the 3D file (P) formed in 3D through the design program, the 3D file (P) can cover the entire surface corresponding to half or one side. A block generation step (S115) of forming a block B1 formed in a circular or polygonal shape is performed. Using the block B1 as the main body, as shown in Fig. 9a, the adjacent surface where the block B1 and the 3D file P are adjacent to each other is cut through the 3D file P through the 3D file P. By performing the operation of creating a surface corresponding to the 3D file (P) by generating When the molded product 3D file forming step (S100), the practitioner can obtain the desired cavity 101 in a short time without repeating the process used when creating the 3D file from the beginning again.

Thereafter, the mold element composition step S120 of forming the mold element in the block B1 in which the cavity 101 is created is performed.

In the composition of the mold, the mold element includes the overflow 200, the charging flow 210, the concave-convex portion 130, the chamfer 150, and the coupling element insertion hole 120 as described above. 100) refers to the elements necessary to form 100', and refers to the operation of finally forming the mold part 100 (100') by forming the elements in the block (B1).

After the mold element composition step (S120) is completed, the 3D file (P) of the mold part 100 (100 ′) is extracted and then the CAM data conversion step (S130) of converting it into CAM data is performed, and then the mold manufacturing step (S140) ) is carried out.

At this time, CAM data means a step that can be converted into a file capable of automated numerical control processing, and CAM (Computer Aided Manufacturing) of CAM data means computer application processing.

The CAM data conversion is a command so that a machine tool capable of cutting-based processing such as a machining center, CNC milling, CNC lathe, and high-speed engraver or a molding machine capable of generation-based processing such as a 3D printer can produce any shape. It is limited to converting through a program that can form 'G-code' as the step of generating 'G-code'.

On the other hand, in order to perform the step of converting the mold part 100 ( 100 ') into CAM data so that it can be output through the 3D printer, the overhang 105 is applied to the mold element generated in the mold element composition step ( S120 ). It is a preferred embodiment to include more.

Thereafter, the mold manufacturing step (S140) of manufacturing the mold part 100 (100') through a machine tool or molding machine suitable for using the G code of the CAM data according to the machine based on it is performed.

The mold unit creation step (S150) of creating the mold unit 10 by inserting coupling elements such as bolts or rivets through the coupling element insertion hole 120 in each mold unit 100 and 100 ′ manufactured thereafter is carried out

On the other hand, among the soft moldings F1 injected into the generated mold unit 10, especially in the case of silicon, since there is a case where coalescence occurs in the cavity 101, the mold parts 100 and 100' are separated from each other. In some cases, smooth separation is not achieved. ), it is a preferred embodiment to proceed with the mold unit creation step (S150).

Thereafter, the soft molding compounding step (S160) of preparing the soft molding F1 to be injected into the mold unit 10 is performed.

The liquid soft molding (F1) is an operation that allows the operator or user to obtain a satisfactory result by synthesizing the main agent and the curing agent in the liquid state to cure in the cavity 101 of the mold unit 10. A toner may be added when synthesizing with a curing agent.

On the other hand, in the synthesized liquid soft molding (F1), a smooth quality result can be obtained only by removing bubbles or bubbles generated while synthesizing the main material and the curing agent, and the cured soft molding of beautiful quality ( Since it is possible to obtain F1), it is a preferred embodiment to proceed with the molding degassing step (S165) capable of removing air bubbles in the liquid soft molding F1. At this time, the defoaming method used in the molding defoaming step (S165) is a defoaming method using a vacuum defoaming machine, and there is a defoaming method in which the liquid soft molding (F1) is placed in a drum or cup and rotated to the side for a certain period of time. By dropping the soft molded product (F1) of There is a defoaming method that can be used, so that one of the methods described above can be used selectively or a method of mixing all of them can be used.

The liquid soft molding F1 synthesized through the soft molding compounding step (S160) is inserted through the injection hole 110 of the mold unit 10, and the liquid soft molding inserting step (S170) is performed.

There is a method of inserting a liquid soft molding (F1) using a mechanical method or inserting it into a manual piston, mixing these two methods or using one of the two methods, but the method of injection is not critically limited. The above-described method can be interpreted as an example to the last, but must be limited to a method using a compression type injector (inlet). After the inserted liquid soft molding F1 starts to flow out through the charging flow 210, the operation can be stopped when the soft molding F1 starts to flow out even in the overflow 200.

Thereafter, a bulge insertion step (S180) of injecting an excess amount of the liquid soft molding F1 into the bulge 115 of the injection port 110 is performed.

The bulge insertion step (S180) may refer to the bar shown in FIG. 10, wherein the bulge 115 serves to insert the injector (injection port), but the liquid soft molding F1 may be filled to some extent. It is an element that is made to be possible.

Previously, as the liquid soft molding F1 was cured, there was a problem in that a non-extruded surface was generated on the surface of the injection-molded product from shrinkage that occurred during curing when the product was completed, thereby reducing the completeness of the product.

Therefore, in order to prevent this, when the soft molding F1 is cured and contracted by further filling the bulge 115 with the extra soft molding F1, the extra soft molding F1 is further introduced into the cavity 101. Non-emission surfaces can be avoided by allowing them to enter and cure together.

After that, the mold part separation step (S190) of taking out the hardened soft molding F1 from the inside of the cavity 101 of the mold unit 10 is performed.

In order to separate the mold part 100 from the mold unit 10, the lever L is inserted into the chamfer 150 or the separation groove 109 of the mold part 100, and the mold part 100 (100') After being separated from each other and naturally separated from the cavity 101 on one side, the extra soft molding F1 and the body inserted in the bulge 115 are cut and removed.

After that, the molded product F2 can be finally completed by removing the mold part 100 remaining in the hardened soft molding F1 and then removing the mold sludge remaining in the completely separated soft molding F1. .

The method of injection-manufacturing the soft molding F1 in the manner described above can produce a real-use sample that can be implemented within a fast development time, and even if the professional equipment required for molding is not satisfied, the mold part 100 ( 100`) can be manufactured with a CNC machine or 3D printer, and it has the characteristic of being able to make soft molded products with complex shapes. In addition, since it can be used repeatedly, it has the characteristic that it can satisfy the requirements for non-professionals who have not mastered the molding technology to create contents or the art toy industry.

As mentioned above, although the present invention has been mainly described with reference to the embodiments of the configuration, operation and effect of the present invention with reference to the drawings, it is not necessarily limited thereto, and obvious modifications and configurations and actions that can be derived from the embodiments described in the present invention. It should be described in the claims and should be construed as such.

B : Bed B1 : Block
F1 : Soft molding F2 : Molded product
I : Injector L : Lever
P : 3D file S : Support
U: bubble
10: mold unit 100, 100`: mold part
101, 101`: Cavity 105, 105`: Overhang
109: groove for separation 110: inlet
115: bulge 119: presser foot
120, 120`: coupling element insertion hole 121: hexagonal through hole
122: cylindrical through hole 130: uneven portion
131: blade step 132: blade groove
135: bulkhead 150: chamfer
200: overflow 210: charging flow
211, 211`: plug insertion hole 220: branch part
221: branch flow 290: stopper
291: flow stopper 292: protrusion for fitting
295: grip
S100: Molded product 3D file formation step
S110: cavity creation step
S115: block generation step
S120: Mold element composition step
S130: CAM data conversion step
S140: Mold making stage
S150: Mold unit creation step
S155: release agent application step
S160: Soft molding compounding step
S165: molded product defoaming step
S170: liquid soft molding inserting step
S180: Bulge Insertion Step
S190: Mold part separation step

Claims (14)

An injection hole 110 is provided on one upper side, a cavity 101 capable of injecting a liquid soft molding F1 is provided at the center end, and a plurality of coupling element insertion holes 120 are spaced apart from each other on one side of the inner circumferential surface. The molded part 100 and
In the molding cavity of a soft molding forming one mold unit 10 by combining the mold part 100 with the corresponding mold part 100' provided with the cavity 101' of the corresponding shape,
Concave-convex portions 130 are provided on the outer peripheral surface of the cavity 101 to be spaced apart,
The molding cavity of the soft molding, characterized in that the chamfer (150) is further provided at the distal end of the outer peripheral surface of the mold part (100).
The method of claim 1,
A molding cavity of a soft molding, characterized in that a plurality of overflows 200 are further provided on one upper side of the mold part 100 .
The method of claim 1,
A molding cavity for a soft molded product, characterized in that a groove for separation (109) is further provided at one end of the inner peripheral surface of the mold part (100).
The method of claim 1,
A bulge 115 is further provided on the upper portion of the inlet 110,
The molding cavity of the soft molding, characterized in that the presser foot (119) is further provided at both side ends of the bulge (115).
The method of claim 1,
A single or a plurality of charging flows 210 are further provided on one side of the lower end of the mold part 100,
A stopper insertion hole 211 having a larger diameter than that of the charging flow 210 is further provided at one end of the charging flow 210,
The molded cavity of the soft molded product, characterized in that the stopper portion (290) can be inserted into the stopper insertion hole (211).
The method of claim 1,
The front end of the coupling element insertion hole 120 is provided with a hexagonal through hole 121,
The molding cavity of the soft molding, characterized in that the cylindrical through-hole (122) forming a diameter smaller than the diameter of the hexagonal through-hole (121) is further provided at the tip of the side corresponding to the front end of the hexagonal through-hole (121).
The method of claim 1,
The front end of the coupling element insertion hole 120 is provided with a hexagonal through hole 121,
The molding cavity of the soft molding, characterized in that the cylindrical through-hole (122) forming a diameter smaller than the diameter of the hexagonal through-hole (121) is further provided at the tip of the side corresponding to the front end of the hexagonal through-hole (121).
The method of claim 1,
A branch portion 220 of a form in which a single or a plurality of one or a plurality of selectively specified one side is extended from the main body of the cavity 101 and the end thereof extends independently to the upper side of the cavity 101 is further formed,
A branch flow 221 connected to the branch 220 is further provided on an outer part of the mold part 100 provided with the branch 220,
The molding cavity of the soft molded product, characterized in that it can further include a stopper insertion hole (211 ′) at the tip of the branch flow (221).
The method of claim 1,
Concave-convex portion 130 is made of a shape that is selected from one of the blade step 131 or the blade groove 132,
In the mold part 100 ′ that is matched with the mold part 100 , the concavo-convex part 130 of the mold part 100 corresponds to either the blade step 131 or the blade groove 132 , which is selectively formed. Optionally formed as an element,
The blade step 131 is formed in an elliptical shape protruding in the upper and lower directions,
Molding cavity of a soft molded product, characterized in that the partition wall 135 is further formed at a gap between one end of the inner peripheral surface of the blade groove 132 toward the cavity 101 and the outer peripheral surface of the cavity 101 .
The method of claim 1,
The molding cavity of the soft molded product, characterized in that the overhang (105) is further formed on the edge of the outer peripheral surface of a part or the whole of the mold part (100).
An injection hole 110 is provided on one upper side, a cavity 101 capable of injecting a liquid soft molding F1 is provided at the center end, and a plurality of coupling element insertion holes 120 are spaced apart from each other on one side of the inner circumferential surface. The molded part 100 and
Molding of a soft molded article through the molding cavity of the soft molded product forming one mold unit 10 by combining the mold part 100 with the corresponding mold part 100 ′ provided with the cavity 101 ′ of the shape corresponding to the mold part 100 . In the method,
A molded product 3D file forming step (S100) of forming a 3D file of a shape requiring molding;
A cavity creation step (S110) that can be converted into a cavity 101 that can extract an injection molded product corresponding to the shape of the 3D file (S110);
Then, a mold element composition step (S120) of forming a mold element in the block (B1) in which the cavity 101 is created,
A CAM data conversion step (S130) of extracting the 3D file (P) of the mold unit 100 (100 ′) and converting it into CAM data;
A mold manufacturing step (S140) of manufacturing the mold part 100 (100`) through a machine tool or a molding machine suitable for using the G code of the CAM data;
A mold unit creation step (S150) of generating the mold unit 10 by inserting the coupling element through the coupling element insertion hole 120 of each of the manufactured mold parts 100 and 100 ′;
A soft molding compounding step (S160) of preparing to inject the soft molding (F1) into the mold unit 10 (S160);
A liquid soft molding inserting step (S170) of inserting the liquid soft molding (F1) through the injection port 110 of the mold unit 10 (S170);
A bulge insertion step (S180) of injecting an extra amount of the liquid soft molding F1 also into the bulge 115 of the injection port 110,
A method of molding a soft molded article using a molded cavity of a soft molded product, characterized in that the mold part separation step (S190) of taking out the hardened soft molded product F1 from the inside of the cavity 101 of the mold unit 10 is sequentially performed.
12. The method of claim 11,
In the cavity creation step (S110),
The creation of the cavity 101 is a block formed in a circle or polygon so that the 3D file (P) formed in 3D can be read through a design program, and the 3D file (P) can cover the entire surface corresponding to half or one side. A method for molding a soft molded product using a molding cavity of a soft molded product, characterized in that the block generating step (S115) for forming (B1) is performed.
12. The method of claim 11,
In the mold unit creation step (S150),
Before performing the mold unit generating step (S150), the molded cavity of the soft molding, characterized in that the mold release agent application step (S155) of applying the release agent to the cavity 101 of the mold part 100 (100') is further performed. A method of forming a soft molded product using
12. The method of claim 11,
In the soft molding compounding step (S160),
A method for molding a soft molded product using a molding cavity of a soft molded product, characterized in that the molding degassing step (S165) capable of removing air bubbles in the liquid soft molding (F1) proceeds together.

Images