JP7029973B2 - Manufacturing method of gel-like member - Google Patents

Description

The present invention relates to a method for producing a gel-like member that cures a liquid gel material in a void composed of a plurality of mold members.

As a method for producing a gel-like member having a predetermined shape, a liquid gel material is filled in a void composed of two outer molds and a bottom mold, and then the liquid gel material is cured to produce a gel-like member. A casting method has been proposed (see Patent Document 1).

Japanese Unexamined Patent Publication No. 6-87130

Since the gel-like member has an adhesive function at the time of curing, it is difficult to remove the mold member (outer mold and bottom mold) from the gel-like member after curing by the technique described in Patent Document 1. Therefore, it takes a lot of time and effort to remove the mold member from the gel-like member after curing, and when a large load is applied to the gel-like member, the gel-like member may be torn.

In view of the above problems, an object of the present invention is to provide a method for manufacturing a gel-like member capable of easily removing the mold member from the gel-like member after casting.

In order to solve the above problems, in the present invention, when the second type member is arranged so as to face the first type member via the gap, the second type member is arranged along the surface of the first type member on the gap side. The first flexible member is provided, the second flexible member is provided along the surface of the second type member on the void side, and the spacer surrounding the void is provided, leaving the filling port. The assembling step provided between the flexible member and the second flexible member, the filling step of filling the voids with the liquid gel material before curing from the filling port after the assembling step, and the filling step of the filling step. After that, a curing step of curing the liquid gel material to form a gel-like member, and a removing step of removing the first-type member, the second-type member, and the spacer from the gel-like member after the curing step. And, in the assembly process, volatile between the first type member and the first flexible member, and between the second type member and the second flexible member. The first type member and the first flexible member are brought into close contact with each other via the organic solvent, and the second type member and the second flexible member are brought into close contact with each other through the organic solvent. It is characterized by being brought into close contact with each other.

In the present invention, the first flexible member is provided along the void side surface of the first type member, the second flexible member is provided along the void side surface of the second type member, and the filling port is provided. A spacer surrounding the void is provided between the first flexible member and the second flexible member, and the liquid gel material filled in the void is cured to form a gel-like member. Therefore, since the gel-like member does not come into contact with the first-type member and the second-type member, the first-type member and the second-type member can be easily removed from the gel-like member. The side surface of the gel-like member is in contact with the spacer, but since the contact area between the side surface of the gel-like member and the spacer is narrow, the spacer can be easily removed from the gel-like member. Further, the gel-like member is in contact with the first flexible member and the second flexible member over a wide area, but the first flexible member and the second flexible member can be peeled off while being bent. Therefore, the first flexible member and the second flexible member can be easily peeled off. Further, in the present invention, it is difficult for air to intervene between the first type member and the first flexible member, and it is difficult for air to intervene between the second type member and the second flexible member. Therefore, the shape of the surface on the void side of the first type member and the shape of the surface on the void side of the second type member are the surface on the void side of the first flexible member and the void of the second flexible member, respectively. It is accurately reflected on the side surface. Therefore, it is possible to manufacture a gel-like member having a shape defined by the shape of the surface of the first type member on the void side and the shape of the surface of the second type member on the void side.

In the present invention, the first flexible member and the second flexible member can each adopt a film-like aspect. According to this aspect, the shape of the gap-side surface of the first type member and the shape of the gap-side surface of the second type member are the shape of the gap-side surface of the first flexible member and the second. It is accurately reflected in the shape of the surface of the flexible member on the void side. Therefore, it is possible to manufacture a gel-like member having a shape defined by the shape of the surface of the first type member on the void side and the shape of the surface of the second type member on the void side.

In the present invention, the first type member and the second type member can each adopt an embodiment in which the surface on the void side is flat and the gel-like member is flat.

In the present invention, the spacer may employ at least an aspect in which the surface on the void side is made of fluororesin. According to such an embodiment, the spacer can be easily removed from the gel-like member in the mold release step.

In the present invention, in the assembly step, the first flexible member is projected from the end of the first type member and the spacer on the side where the filling port is located, and the second flexible member is made of the first flexible member. The type 2 member and the spacer are projected from the end on the side where the filling port is located, and in the filling step, the first flexible member and the second flexible member are formed on the side where the filling port is located. It is possible to adopt an embodiment in which the liquid gel material is supplied to the filling port from between and filled in the voids. According to such an embodiment, when the liquid gel material is filled from the filling port, the liquid gel material to be spilled can be received by the first flexible member and the second flexible member.

In the present invention, in the assembly process, the first flexible member is projected from the first mold member on the entire circumference of the first mold member, and the second flexible member is projected from the first mold member on the entire circumference of the second mold member. A mode of projecting from the second type member at the circumference can be adopted. According to such an embodiment, the first mold member can be removed while holding the portion of the first flexible member protruding from the first mold member, and the second flexible member protrudes from the second mold member. The second type member can be removed while holding the portion.

In the present invention, the spacer includes a bottom plate portion located below in the filling step, and a first side plate portion extending in one direction intersecting the extending direction from one end of the extending direction of the bottom plate portion. The bottom plate portion has a second side plate portion extending in the one direction from the other end in the extending direction and facing the first side plate portion in the extending direction, and the first side plate portion has the same. It is possible to adopt an embodiment in which the filling port is between the end portion on the side opposite to the bottom plate portion and the end portion on the side opposite to the bottom plate portion of the second side plate portion. According to such an embodiment, a wide filling port can be secured. Further, since the contact area between the side surface of the gel-like member and the spacer can be made narrower, the spacer can be easily removed from the gel-like member. In this case, after the filling step and before the curing step, the end portion between the first mold member and the second mold member on the side opposite to the bottom plate portion of the first side plate portion and the said. An embodiment in which the upper plate is arranged between the second side plate portion and the end portion on the opposite side to the bottom plate portion can be adopted. According to such an aspect, when the curing step is performed, the distance between the first type member and the second type member can be maintained at an appropriate value over the entire circumference, and the first flexible member and the second flexible member can be maintained. It is possible to suppress the bending of the sex member.

In the present invention, an embodiment of heating the liquid gel material can be adopted. According to such an embodiment, there is an advantage that the curing of the liquid gel material can be promoted.

In the present invention, when the gel-like member is stored in a state of being sandwiched between the first flexible member and the second flexible member after the mold release step, and the gel-like member is used. In addition, an embodiment of peeling the first flexible member and the second flexible member from the gel-like member can be used. According to such an embodiment, the gel-like member can be stored in a stable state.

In the present invention, the first flexible member is provided along the void side surface of the first type member, the second flexible member is provided along the void side surface of the second type member, and the filling port is provided. A spacer surrounding the void is provided between the first flexible member and the second flexible member, and the liquid gel material filled in the void is cured to form a gel-like member. Therefore, since the gel-like member does not come into contact with the first-type member and the second-type member, the first-type member and the second-type member can be easily removed from the gel-like member. The side surface of the gel-like member is in contact with the spacer, but since the contact area between the side surface of the gel-like member and the spacer is narrow, the spacer can be easily removed from the gel-like member. Further, the gel-like member is in contact with the first flexible member and the second flexible member over a wide area, but the first flexible member and the second flexible member can be peeled off while being bent. Therefore, the first flexible member and the second flexible member can be easily peeled off. Further, in the present invention, it is difficult for air to intervene between the first type member and the first flexible member, and it is difficult for air to intervene between the second type member and the second flexible member. Therefore, the shape of the surface on the void side of the first type member and the shape of the surface on the void side of the second type member are the surface on the void side of the first flexible member and the void of the second flexible member, respectively. Accurately anti-side surface
It will be reflected. Therefore, it is possible to manufacture a gel-like member having a shape defined by the shape of the surface of the first type member on the void side and the shape of the surface of the second type member on the void side.

It is explanatory drawing of the gel-like member to which this invention was applied. It is explanatory drawing of the manufacturing apparatus of the gel-like member shown in FIG. It is explanatory drawing which shows the method of manufacturing a gel-like damper by the manufacturing apparatus shown in FIG.

Hereinafter, embodiments of the present invention will be described.

(Structure of gel-like member 1)
FIG. 1 is an explanatory diagram of a gel-like member 1 to which the present invention is applied. The gel-like member 1 shown in FIG. 1 is, for example, a quadrangular flat plate made of a silicone gel or the like, and is used as a damper member or the like that absorbs vibration. The gel-like member 1 is manufactured by casting the liquid gel material 10. Here, as the liquid gel material 10, a material having normal temperature curability or heat curability can be used. In this embodiment, the liquid gel material 10 is an addition type two-component type.

(Structure of Manufacturing Device 2 of Gel-like Member 1)
FIG. 2 is an explanatory diagram of the manufacturing apparatus 2 for the gel-like member 1. FIG. 3 is an explanatory diagram showing a method of manufacturing the gel-like member 1 by the manufacturing apparatus 2 shown in FIG. The manufacturing apparatus 2 shown in FIG. 2 has a structure in which a first mold member 31, a first flexible member 41, a spacer 5, a second flexible member 42, and a second mold member 32 are arranged in this order. is doing.

In the present embodiment, the first type member 31 and the second type member 32 are made of a glass plate or the like and have a plate shape. The first flexible member 41 and the second flexible member 42 are made of a plastic film, a metal film, a laminated film of a metal film and a plastic film, and the like, and are in the form of a film. In the present embodiment, the first flexible member 41 and the second flexible member 42 are made of a plastic film such as polyproprene or polyethylene terephthalate having a melting point higher than the temperature at which the liquid gel material 10 is heat-cured. The spacer 5 has a bottom plate portion 50 located below in the filling step ST2 described later with reference to FIG. 3, and one end 50 of the bottom plate portion 50 in the extending direction X.
A first side plate portion 51 extending in one direction Y intersecting the extending direction X from 1 and extending in one direction Y from the other end 502 of the extending direction X of the bottom plate portion 50 to the first side plate portion 51. It has a second side plate portion 52 facing in the extending direction X. The filling port 55 is between the end portion 510 on the side opposite to the bottom plate portion 50 of the first side plate portion 51 and the end portion 520 on the side opposite to the bottom plate portion 50 of the second side plate portion 52. In this embodiment, the upper plate 54 is also used to assist the spacer 5.

In order to manufacture the gel-like member 1 using the manufacturing apparatus 2 configured as described above, in the assembly step ST1 shown in FIG. 3, the second mold member 32 faces the first mold member 31 via the gap 20. To place. In this state, the surfaces 310 and 320 on the gap 20 side of the first type member 31 and the second type member 32 are planar, respectively. Further, when the second mold member 32 is arranged so as to face the first mold member 31 via the gap 20, the first flexible member 41 is aligned with the surface 310 on the gap 20 side of the first mold member 31. The second flexible member 42 is provided along the surface 320 on the gap 20 side of the second type member 32. Further, a spacer 5 is provided between the first flexible member 41 and the second flexible member 42. As a result, the spacer 5 is in a state of surrounding the void 20 leaving the filling port 55. Such a state is maintained by tightening the first type member 31 and the second type member 32 from both sides by a restraining member (not shown) or the like.

In the present embodiment, at least the surface of the spacer 5 on the void 20 side is made of a fluororesin such as tetrafluoroethylene resin. In this embodiment, the spacer 5 is entirely made of fluororesin. However, the spacer 5 may have a surface or the entire surface on the void 20 side made of a resin such as polyacetal resin or a metal material such as iron or aluminum.

In the present embodiment, the surface 310 on the gap 20 side of the first type member 31 and the surface 320 on the gap 20 side of the second type member 32 are each made flat by polishing or the like. Further, the first flexible member 41 and the second flexible member 42 are each in the form of a film. Therefore, the shape of the surface 310 on the gap 20 side of the first type member 31 and the shape of the surface 320 on the gap 20 side of the second type member 32 are the shapes of the surface of the first flexible member 41 on the gap 20 side, respectively. , And the shape of the surface of the second flexible member 42 on the void 20 side is accurately reflected.

Here, the first flexible member 41, the spacer 5, and the second flexible member 42 have the same size. Further, the first flexible member 41 and the second flexible member 42 are larger in size than the first flexible member 41 and the second flexible member 42. Therefore, the first flexible member 41 has a protruding portion 410 protruding from the end portion 311, 510, 520 on the side where the filling port 55 of the first mold member 31 and the spacer 5 is located, and the second flexible member 41 is flexible. The sex member 42 has a protruding portion 420 protruding from the end portion 321, 510, 520 on the side where the filling port 55 of the second type member 32 and the spacer 5 is located. In this embodiment, the first flexible member 41 is projected from the first mold member 31 on the entire circumference of the first mold member 31, and the second flexible member 42 is projected from the first mold member 31 on the entire circumference of the second mold member 32. It is projected from the member 32. Therefore, the first flexible member 41 and the second flexible member 42 have protrusions 410 and 420 all around the first mold member 31 and the second mold member 32.

In this embodiment, when the first flexible member 41 is provided along the surface 310 on the gap 20 side of the first type member 31, isopropyl is provided between the first type member 31 and the first flexible member 41. A volatile organic solvent (not shown) such as alcohol, 2-butanol, or 1-propanol is interposed to bring the first type member 31 and the first flexible member 41 into close contact with each other via the organic solvent. Further, an organic solvent (not shown) is interposed between the second type member 32 and the second flexible member 42, and the second type member 32 and the second flexible member 42 are interposed via the organic solvent. Make it in close contact. That is, since the surface 310 on the gap 20 side of the first type member 31 and the surface 320 on the gap 20 side of the second type member 32 are flat surfaces, the first type member 31 and the first flexibility When an organic solvent is thinly interposed between the member 41 and between the second type member 32 and the second flexible member 42, the surface tension of the organic solvent causes the first type member 31 and the first flexible member to be flexible. The member 41 is in close contact with the member 41 via an organic solvent, and the second type member 32 and the second flexible member 42 are in close contact with each other via an organic solvent. Therefore, it is difficult for air to intervene between the first mold member 31 and the first flexible member 41, and between the second mold member 32 and the second flexible member 42. Therefore, the shape of the surface of the first type member 31 on the gap 20 side and the shape of the surface of the second type member 32 on the gap 20 side are the shapes of the surface of the first flexible member 41 on the gap 20 side, respectively. And it is accurately reflected in the shape of the surface of the second flexible member 42 on the gap 20 side.

Next, in the filling step ST2, the liquid gel material 10 before curing is filled in the voids 20 from the filling port 55. In this embodiment, the liquid gel material 10 is supplied to the filling port 55 from between the protrusion 410 and the protrusion 420 on the side where the filling port 55 is located, and the gap 20 is filled with the liquid gel material 10. Therefore, when the liquid gel material 10 is filled from the filling port 55, the liquid gel material 10 to be spilled can be received by the protrusions 410 and 420 of the first flexible member 41 and the second flexible member 42. ..

Next, in the curing step ST3, the liquid gel material 10 is cured to form a gel-like member 1. At that time, the liquid gel material 10 may be heated. In either case, the organic solvent evaporates and escapes between the first mold member 31 and the first flexible member 41, and between the second mold member 32 and the second flexible member 42. In this embodiment, since the organic solvent is a volatile liquid, it is organic between the first type member 31 and the first flexible member 41, and between the second type member 32 and the second flexible member 42. Solvent does not easily remain. Further, if the organic solvent is the above-mentioned alcohols or the like, problems such as swelling of the first flexible member 41 and the second flexible member 42 are unlikely to occur.

In this embodiment, after the filling step ST2 and before the curing step ST3, the end portion between the first mold member 31 and the second mold member 32 on the side opposite to the bottom plate portion 50 of the first side plate portion 51. The upper plate 54 is arranged between the 510 and the end portion 520 on the opposite side of the bottom plate portion 50 of the second side plate portion 52, and the filling port 55 is closed. Therefore, when the curing step ST3 is performed, the distance between the first mold member 31 and the second mold member 32 can be maintained at an appropriate value over the entire circumference, and the first flexible member 41 and the second flexible member 41 can be flexed. It is possible to suppress the bending of the sex member 42.

Next, in the mold release step ST4, the first mold member 31, the second mold member 32, the upper plate 54, and the spacer 5 are removed from the gel-like member 1. In the present embodiment, the first flexible member 41 and the second flexible member 42 have protrusions 410 and 420 all around the first mold member 31 and the second mold member 32. Therefore, the first type member 31 can be removed while holding the protruding portion 410, and the second type member 32 can be removed while holding the protruding portion 420.

In the final step ST5, the first flexible member 41 and the second flexible member 42 are peeled off from the gel-like member 1. At that time, the first flexible member 41 and the second flexible member 42 are peeled off from the gel-like member 1 while bending the first flexible member 41 and the second flexible member 42.

In this embodiment, when the gel-like member 1 is stored in a state of being sandwiched between the first flexible member 41 and the second flexible member 42 after the mold release step ST4, and the gel-like member 1 is used. In the final step ST5, the first flexible member 41 and the second flexible member 42 are peeled off from the gel-like member 1. Therefore, the gel-like member 1 can be stored in a stable state.

(Main effect of this form)
As described above, in the present embodiment, when the gel-like member 1 is manufactured by casting, the first flexible member 41 is provided along the surface 310 on the gap 20 side of the first mold member 31, and the second is provided. The second flexible member 42 is provided along the surface 320 on the gap 20 side of the mold member 32. Further, a spacer 5 is provided between the first flexible member 41 and the second flexible member 42 so as to surround the void 20 while leaving the filling port 55, and the liquid gel material 10 filled in the void 20 is provided. Is cured to form a gel-like member 1. Therefore, the gel-like member 1 does not come into contact with the first mold member 31 and the second mold member 32.
Even when the gel-like member 1 has high adsorptivity, the first-type member 31 and the second-type member 32 can be easily removed from the gel-like member 1. Further, since the gel-like member 1 does not come into contact with the first-type member 31 and the second-type member 32, when the first-type member 31 and the second-type member 32 are removed from the gel-like member 1, the gel-like member 1 becomes the first. It does not remain in the type 1 member 31 and the type 2 member 32. Therefore, it can be used for the next casting without cleaning the first mold member 31 and the second mold member 32.

Further, although the side surface 11 of the gel-like member 1 is in contact with the spacer 5, the contact area between the side surface 11 of the gel-like member 1 and the spacer 5 is narrow, so that the spacer 5 can be easily removed from the gel-like member 1. can. In particular, in the present embodiment, since at least the surface of the spacer 5 on the void 20 side is made of fluororesin, the spacer 5 can be easily removed from the gel-like member 1. Moreover, since the entire area between the end portion 510 of the first side plate portion 51 and the end portion 520 of the second side plate portion 52 is the filling port 55, the end portions 510 and the second side plate portion of the first side plate portion 51 are formed. Unlike the case where the upper plate portion parallel to the bottom plate portion 50 is provided between the end portion 520 of 52, the contact area between the side surface 11 of the gel-like member 1 and the spacer 5 is narrow. Therefore, the spacer 5 can be easily removed from the gel-like member 1.

Further, the gel-like member 1 is in contact with the first flexible member 41 and the second flexible member 42 over a wide area, but as described in the final step ST5 shown in FIG. 3, the first flexible member 1 is flexible. The member 41 and the second flexible member 42 can be peeled off while being bent. Therefore, even when the gel-like member 1 has an adsorptive property, the first flexible member 41 and the second flexible member 42 can be easily peeled off, and the gel-like member 1 is chipped. Can be suppressed.

Further, since the first flexible member 41 and the second flexible member 42 are in the form of a film, the shape of the surface 310 on the gap 20 side of the first mold member 31 and the shape of the gap 20 side of the second mold member 32. The shape of the surface 320 is accurately reflected on the surface of the first flexible member 41 on the gap 20 side and the surface of the second flexible member 42 on the gap 20 side, respectively. Therefore, the gel-like member 1 having a defined shape and thickness can be manufactured by the surface 310 on the gap 20 side of the first type member 31 and the surface 320 on the gap 20 side of the second type member 32.

(Other embodiments)
In the above embodiment, in the spacer 5, the first side plate portion 51 and the second side plate portion 52 are integrally connected to the bottom plate portion 50, but in the assembly process ST1, the first side plate portion 51 and the second side plate portion 51 are integrally connected. A mode may be used in which the portion 52 is coupled to the bottom plate portion 50. According to this aspect, in the mold release step ST4, the first side plate portion 51, the second side plate portion 52, and the bottom plate portion 50 can be separately removed from the gel-like member 1, so that the first side plate portion 51 and the second side plate portion 51 can be removed separately. The portion 52 and the bottom plate portion 50 can be easily removed from the gel-like member 1.

In the above embodiment, the first flexible member 41 and the second flexible member 42 are separate members, but the first flexible member 41 and the second flexible member 42 are connected to each other. It may be an integral member, and in this case, the first flexible member 41 and the second flexible member 42 are formed by folding the integral member.

1 ... Gel-like member, 2 ... Manufacturing equipment, 5 ... Spacer, 10 ... Liquid gel material, 11 ... Side surface, 20 ... Void, 31 ... First type member, 32 ... Second type member, 41 ... First flexibility Member, 42 ... Second flexible member, 50 ... Bottom plate, 51 ... First side plate, 52 ... Second side plate, 54 ... Top plate, 55 ... Filling port, 310, 320 ... Surface, 311, 321, 510, 520 ... end, 410, 420 ... protruding part, ST1 ... assembly process, ST2 ... filling process, ST3 ... curing process, ST4 ... mold removal process, ST5 ... final process

Claims (10)

When arranging the second type member so as to face the first type member via the gap, the first flexible member is provided along the surface of the first type member on the gap side, and the second type member is provided. A second flexible member is provided along the surface of the mold member on the void side, and a spacer surrounding the void is provided with the first flexible member and the second flexible member, leaving a filling port. The assembly process provided between
After the assembly step, a filling step of filling the voids with the liquid gel material before curing from the filling port,
After the filling step, a curing step of curing the liquid gel material to form a gel-like member,
After the curing step, a mold release step of removing the first mold member, the second mold member, and the spacer from the gel-like member.
Have,
In the assembly step, a volatile organic solvent is interposed between the first mold member and the first flexible member, and between the second mold member and the second flexible member. The first type member and the first flexible member are brought into close contact with each other via the organic solvent, and the second type member and the second flexible member are brought into close contact with each other via the organic solvent. A method for manufacturing a gel-like member. The method for producing a gel-like member according to claim 1, wherein the first flexible member and the second flexible member are each in the form of a film. The first type member and the second type member each have a flat surface on the void side.
The method for manufacturing a gel-like member according to claim 1 or 2, wherein the gel-like member has a flat plate shape. The method for producing a gel-like member according to any one of claims 1 to 3 , wherein the spacer has at least a surface on the void side made of a fluororesin. In the assembly step, the first flexible member is projected from the end of the first type member and the spacer on the side where the filling port is located, and the second flexible member is made of the second type member and the second type member. Protruding from the end of the spacer on the side where the filling port is located,
In the filling step, the liquid gel material is supplied to the filling port from between the first flexible member and the second flexible member on the side where the filling port is located, and the void is filled. The method for producing a gel-like member according to any one of claims 1 to 4 , wherein the gel-like member is produced. In the assembly step, the first flexible member is projected from the first mold member on the entire circumference of the first mold member, and the second flexible member is projected from the first mold member on the entire circumference of the second mold member. The method for manufacturing a gel-like member according to any one of claims 1 to 5 , wherein the gel-like member is projected from the type 2 member. The spacer includes a bottom plate portion located below in the filling step, a first side plate portion extending in one direction intersecting the extending direction from one end of the extending direction of the bottom plate portion, and the bottom plate portion. It has a second side plate portion extending in the one direction from the other end in the extending direction and facing the first side plate portion in the extending direction.
A claim characterized in that the filling port is between an end portion of the first side plate portion opposite to the bottom plate portion and an end portion of the second side plate portion opposite to the bottom plate portion. Item 6. The method for manufacturing a gel-like member according to any one of Items 1 to 6 . After the filling step and before the curing step, the end portion of the first side plate portion between the first mold member and the second mold member opposite to the bottom plate portion and the second side plate portion. The method for manufacturing a gel-like member according to claim 7 , wherein the upper plate is arranged between the portion and the end portion on the side opposite to the bottom plate portion. The method for producing a gel-like member according to any one of claims 1 to 8 , wherein in the curing step, the liquid gel material is heated. After the mold release step, the gel-like member is stored in a state of being sandwiched between the first flexible member and the second flexible member.
The invention according to any one of claims 1 to 9 , wherein when the gel-like member is used, the first flexible member and the second flexible member are peeled off from the gel-like member. A method for manufacturing a gel-like member.

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