JP3151604U - Molding apparatus and molded product - Google Patents

Abstract

[PROBLEMS] To provide a molding apparatus, a molded product, and a model component provider for a molded product (model component provider) that does not affect the appearance of the molded product (model component) and does not generate unnecessary portions such as runners. To do. A movable mold body 102 includes a common mold 104, a male mold 106, a fixed base 107 for fixing the male mold 106, a moving side mounting plate 108 attached to a molding material injection device, and a fixed base 107. And a spacer 109 provided between the moving side mounting plate 108. Here, a molding space 202 a into which a molding material for molding the first support member 202 is injected between the common mold 104 and the male mold 106, and a molding material for molding the second support member 203. Is formed, and a molding space 204a into which a molding material for molding the first shaft member 204 is injected is formed. An empty chamber 110 is formed in the fixed base 107, and a movable push-out plate 111 is provided in the empty chamber 110. The pushing plate 111 is fixed to a pressing shaft 113 provided in an opening 112 formed in the fixing base 107. [Selection] Figure 1

Description

The present invention relates to a molding apparatus, a molding, and a model component provider for molding a molded product and a model component provider.

Conventionally, a method in which a synthetic resin material is injected and injected into a molding space of a molding die through a runner groove and a gate has been used to create a molded product such as a plastic model part (model part). Yes. By this molding method, a molded product in which a molded product is attached to the runner through a thin connection portion is molded. Such a molded article is sold as a plastic model kit by being packaged in a box as a model part provider, and provides model parts to purchasers.

A molded product (model component provider) molded by a conventional molding method cuts the molded product (model component) from the runner by cutting the thin connection part of the runner. ), A cut-out trace of the connecting portion is formed. The cut traces deteriorate the appearance of the molded product (model part) and are extremely obstructive when the molded products (model part) are attached to each other, so it was necessary to remove them by scraping them off with a file. The operation of removing the cut marks is difficult for young people and unfamiliar people, and there is a problem that the surface of the molded product (model part) is damaged and the commercial value of the model is reduced.

Therefore, as shown in FIG. 7A, as a method of forming a molded product (model component providing body) that eliminates the work of cutting off the connecting portion of the runner and the work of scraping off the remaining cut trace, Then, the runner 701 and the holding portion 702 are molded from the first synthetic resin material, and as shown in FIG. 7B, the holding portion is inserted in a later step so that the melting point is higher than that of the first synthetic resin material. A method has been proposed in which a molded product 703 is integrally formed of a second synthetic resin material having a low level (for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-1001916

However, the molded product (model component provider) 703 molded by the molding method of the above-described molded product (model component provider) is the holding unit of the molded product (model component) 703 molded in the subsequent process. Since the molded product (model part) can be easily removed from the holding part because it is not welded to 702, the trace of the hole in which the holding part is held remains in the molded product (model part). It was. In addition, the runner and the holding part become waste after removing the molded product (model part), causing environmental damage. Furthermore, it is necessary to perform the runner and the holding part in a place where the disposal can be performed, and the place where the work can be performed is limited.

Therefore, in the present invention, a molding device, a molded product, and a model component are provided for a molded product (model component provider) that does not affect the appearance of the molded product (model component) and does not generate unnecessary parts such as runners. Suggest body.

The molding apparatus according to the present invention includes at least a first molding space for molding a first molded product, a second molding space for molding a second molded product, a first molding space, and a second molding space. A molding material injection port for injecting a molding material, the first molding space and the second molding space each have a connecting portion, and the first molding space and the second molding space are The cross-sectional area of the joint portion between the first molding space and the second molding space is smaller than the cross-sectional area of other regions near the joint portion. ing.

The molding device of the present invention is provided on the first molding space, the first molding space for molding at least the first molded product, the second molding space for molding the second molded product, and the first molding space. A first runner groove for forming a runner communicating with the surface of the first molded product, a second runner groove provided in the second molding space and communicated with the second molded product surface, And a molding material injection port communicating with the second runner groove, and the first molding space and the second molding space are the first runner groove and the second runner groove, and the first runner groove and the second runner groove, respectively. The first molding space and the second molding space communicate with each other via a connection portion, and the cross-sectional area of the contact portion of the connection portion between the first molding space and the second molding space is a contact portion. It is smaller than the cross-sectional area of other areas in the vicinity.

Further, in the molded product of the present invention, at least two or more molded products are connected at the connection portion, and the cross-sectional area at the contact point of the connection portion is formed smaller than the cross-sectional area of other regions near the contact point. An injection mark for injecting the molding material is formed on at least one surface of the molded product.

Further, the molded product of the present invention includes a rod-shaped first support member provided with a first opening, and a rod-shaped second support provided with a first protrusion meshing with the first opening. A rod-shaped first shaft member provided with a member and a second convex portion that meshes with the first opening, a concave portion formed on the side surface, and a rod-shaped second shaft provided with a fixing portion that meshes with the concave portion And an injection mark of the molding material is formed on at least one surface of the first support member, the second support member, the first shaft member, and the second shaft member, The first support member, the second support member, the first shaft member, and the second shaft member are joined, and the cross-sectional area at the contact point of the joint portion is in other regions near the joint portion. It is formed smaller than the cross-sectional area.

In the molded product of the present invention, the second opening is formed on the surface of the first support member, the third opening is formed on the surface of the second support member, and the end of the first shaft member is formed. It is preferable that a protrusion that meshes with the first opening and the second opening is formed in the part. Further, a plurality of the recesses are provided on the side surface of the first shaft member, and the plurality of recesses are substantially the same shape and size, and a plurality of fixings that mesh with the plurality of recesses on the side surface of the second shaft member It is preferable that a portion is provided.

The model component provider of the present invention includes at least a first model component and a second model component, and the first model component has a hemispherical portion, and the hemispherical portion is The second model component is connected to the surface of the second model component by substantially point contact.

The model component provider of the present invention includes at least a first model component and a second model component, and each of the first model component and the second model component has a hemispherical portion. The hemispherical parts are connected by substantially point contact.

Moreover, it is preferable that the model component provider of the present invention is formed by injection molding using a pin gate.

By using the molding apparatus of the present invention, it is possible to mold a molded product that does not affect the appearance and does not generate unnecessary portions. Moreover, according to the molded product and model component provider of the present invention, it is possible to reduce the influence on the appearance due to the cutting of the molded product (model component) and to reduce unnecessary portions such as runners.

(Embodiment 1)
A schematic view of a cross section of the molding apparatus of the present embodiment is shown in FIG. As shown in FIG. 1, the molding apparatus according to the present embodiment includes a movable mold main body 102 attached to the moving side of an injection apparatus for injecting a molding material, and a fixed mold main body 103 attached to the fixed side of the injection apparatus. Have. Grooves into which the molding material flows are formed in the movable mold body 102 and the fixed mold body 103, respectively.

Here, the external appearance of the molded product (model component providing body) 201 of the present embodiment will be described with reference to FIG. As shown in FIG. 2, a molded product (model component provider) 201 is a molded product (model component), and includes a first support member 202, a second support member 203, and a first support member. A shaft member 204 and a second shaft member 205 are provided. Each member (model part) has a hemispherical connecting portion (hemispherical portion) 206. The members (model parts) are brought into point contact with each other so that the connecting portion (hemispherical portion) can be manually separated from the surface of another member, or the connecting portions (hemispherical portion) 206 are connected to each other. The contact points 207 are connected by making point contact so that they can be separated by hand.

In addition, the molded product (model component provider) shown in FIG. 2 has, for example, an injection port when it is removed from the mold so as not to provide a runner between the molded material injection port for injecting the molding material and the molded product. Molding method (pin-gate method) in which the sprue runner between the molded object and the molded product is separated, or a method of injecting molding material directly into the molded product using a hot runner mold that does not discharge the sprue runner Can do. The molded product (model component provider) shown in FIG. 2 is molded by injection molding using a pin gate, and an injection trace (gate trace) 208 is formed on the surface. A molding method using a hot runner mold is preferable because no waste is generated.

Here, the structure of the molding apparatus will be described with reference to FIG. FIG. 1 is a schematic cross-sectional view of the molding apparatus at a position for molding a molded product along the broken line connecting points A and B in FIG. A molding apparatus 101 according to the present embodiment includes a movable mold body 102 and a fixed mold body 103 as shown in FIG.

The movable mold body 102 includes a common mold 104, a male mold 106, a fixed base 107 that fixes the male mold 106, a moving side mounting plate 108 that is attached to the molding material injection device, and a fixed base 107 and a moving side mounting. And a spacer 109 provided between the plate 108. Here, a molding space 202 a into which a molding material for molding the first support member 202 is injected between the common mold 104 and the male mold 106, and a molding material for molding the second support member 203. Are formed, and a molding space 204a into which a molding material for molding the first shaft member 204 is injected is formed.

A vacant chamber 110 is formed in the fixed base 107, and a movable pushing plate 111 is provided in the vacant chamber 110. The extrusion plate 111 is fixed to a pressing shaft 113 provided in an opening 112 formed in the fixed base 107. Further, the push-out plate 111 is provided with a knockout pin 114 that penetrates the male mold 106. Here, by moving the extrusion plate 111, the tip of the knockout pin 114 forms a molded product (model part, first support member 202, second support member 203, first shaft member 204, etc.). It is formed so as to protrude into the molding spaces 202a, 203a, 204a. By pushing up the molded product (model component provider) with the knockout pin 114, the molded product (model component provider) can be easily removed from the mold.

The fixed mold main body 103 includes a fixed mounting plate 115 that is attached to the molding material injection apparatus, and a female mold 116. The fixed mounting plate 115 is provided with a molding material injection port 117, and the molding material injected from the molding material injection port 117 is poured into the molding spaces 202a, 203a, and 204a in the female mold 116 and the common mold 104. Runner grooves 118 are formed.

In the molding apparatus shown in FIG. 1, a molding material is poured into the runner groove 118 and molding spaces 202a, 203a, and 204a to form a molded product (model component provider), and then a female mold 116, a common mold 104, and a male mold are formed. When the molds 106 are separated from each other and the pressing plate 116 is pressed to move the extrusion plate 111, the knockout pin 113 provided on the extrusion plate 111 adheres to the male mold 106 constituting the movable mold body 102 ( A model component provider) can be extruded, and a molded product (model component provider) can be easily taken out.

Moreover, the cross-sectional schematic diagram of the shaping | molding apparatus in the broken-line part which connects the point C and the point D is shown in FIG. In FIG. 3, a molding space 202a for molding a molded product (model part) 202 and a molding space 203a for molding a molded product (model part) 203 are shown. Here, the molding space 202a and the molding space 203a each have a connecting portion 206a. A connecting portion (hemispherical portion) 206 is formed on the molded products (model parts) 202 and 203 by the connecting portion 206a. In addition, the molding space 202a and the molding space 203a communicate with each other via a connection portion 206a. Further, the joint portion 207a where the connection portions 206a are joined to each other has a smaller cross-sectional area than the other portions. More specifically, the connecting portions 206a are substantially in point contact with each other, and the joint portion 207a is a contact portion. As a result, the molded part (model part) 202 and the molded part (model part) 203 are joined to each other so that the joint part is formed thinner than the other part and can be separated by hand. It can be connected by contact. In FIG. 3, the other parts are the same as those shown in FIG.

By using the molding apparatus 101 of the present embodiment, a molded product (model component provider) 201 as shown in FIG. 2 can be created. In the molded product (model component provider) 201 shown in FIG. 2, each member (model component) is connected via a connection portion (hemispherical portion) 206, and the connection portion 206 is hand-held at a contact 207. It is joined to such an extent that it can be separated with. (In other words, they are connected by substantially point contact so that they can be separated by hand.) Therefore, each member (model part) is separated to be disassembled as shown in FIG. be able to. FIG. 4B is a view of the member (model part) shown in FIG.

Here, the opening 301 provided in the first member 202 and the convex 302 provided in the second member 203 are provided so as to be able to mesh and be fixed. Further, the projection 303 provided on the first support member 204 is provided so as to be able to mesh with and be fixed to the opening 304 provided on the opening 301. Further, the fixing portions 305 to 307 provided on the second shaft member 205 are provided so as to be able to be engaged with and fixed to the concave portions 308 to 310 provided on the back surface of the first shaft member 206, respectively. Here, since the fixing portions 305 to 307 are approximately the same size and shape, and the recesses 308 to 310 are approximately the same size and shape, the fixing portions 305 to 307 mesh with any of the recess portions 308 to 310. Is possible.

A model 501 shown in FIG. 5A can be created by meshing the members (model parts) shown in FIG. The model 501 can be used as a pedestal for a display of a doll body as shown in FIG. 5A by fixing the doll body 503 to a convex portion 502 provided on the second shaft member 205. . That is, the first support member 202, the second support member 203, and the first shaft member 204, which are model parts for the model 501, are formed by the molded product (model part provider) 201. The second shaft member 205 is provided to the purchaser. The first support member 202, the second support member 203, the first shaft member 204, and the second shaft member 205 are formed of a hemispherical connection portion (semispherical portion) 206 of another member. Models that are connected to each other by approximately point contact with the surface to such an extent that they can be separated by hand, or by making the contact portions (hemispherical portions) 206 substantially point contact to the extent that they can be separated by hand at the contact points 207. Since it is provided to the customer in the form of a component supplier, an unnecessary runner or the like does not occur after the assembly of the model 501 unlike the conventional model component provider.

Here, since the fixed portions 305 to 307 are approximately the same size and shape, and the recesses 308 to 310 are approximately the same size and shape, the first shaft member 204 and the second shaft member 205 can be expanded and contracted. It has become. For example, as shown in FIG. 6A, the shaft member 400 is provided in a position where the fixing portion 305 and the concave portion 309 are engaged with each other, compared to a case where the fixing portion 305 and the concave portion 308 are provided in a engaging position. It is possible to extend the length.

In the second shaft member 205, a convex portion 502 is provided on a surface that is not parallel to the surface perpendicular to the long side direction of the shaft member 205 but has an arbitrary angle. That is, the long side direction axis of the convex portion 502 and the long side direction axis of the shaft member 205 are not parallel but are provided at positions where they intersect.

Here, since the fixing portions 305 to 307 can be engaged with the concave portions 308 to 310 in either the front or back direction, when the second shaft member 205 is fixed to the first shaft member 204, the orientation shown in FIG. By fixing in the opposite direction, as shown in FIG. 6B, the angle of the long side direction axis of the convex portion 502 with respect to the long side direction axis of the second shaft member 205 can be changed. Therefore, the angle of the doll body when the doll body is fixed to the convex portion 502 can be easily changed.

In addition, as shown in FIG. 4, the molded product of the present embodiment has an opening 311 formed in the first support member 202, an opening 312 formed in the second support member 203, and the first shaft. Protrusions 313 to 316 that mesh with the openings 311 and 312 are formed at the end of the member 204. Thereby, the first support member 202 and the second support member 203 are arranged side by side so that the openings 311 and 312 are on the upper side, and the second shaft member 205 is fixed to the first shaft member 204, By engaging the projections 315 and 316 of the first shaft member 204 with the openings 311 and 312, each member can be stored compactly as shown in FIG. Further, as shown in FIG. 4B, the back surfaces of the support members 202 and 203 are concave, and a plurality of holding members 317 having parts holding portions are provided on the concave surfaces. As a result, even when fine parts are stored in the recesses of the support members 202 and 203, they can be fixedly held by the holding member 317.

By using the molding apparatus of the present embodiment, it is possible to mold a molded product (model component provider) joined to a strength that allows a plurality of molded products (model components) to be separated by hand. There is no need to provide an extra runner portion in the molded product (model component provider). Further, in the molded product (model component provider) of the present embodiment, the molded products (model components) make the connection portions (hemispherical portions) substantially point-contact with the surfaces of other members, or the connection portions. Since the hemispherical parts are connected by making point contact with each other, the molded product (model part) can be separated by hand at the time of model assembly, and there will be an extra runner part after model assembly. There is no. Therefore, no special tools are required and no waste is generated, so the place where the molded product (model part) is assembled as a model is not limited, and an environmentally friendly molded product (model part provider) is formed. Is possible.

The figure for demonstrating the structure of the shaping | molding apparatus of this invention. The figure for demonstrating the structure of the shaping | molding apparatus of this invention. The figure for demonstrating the structure of the partition member of this invention. The figure for demonstrating the usage form of the partition member of this invention. The figure for demonstrating the structure of the shaping | molding apparatus of this invention. The figure for demonstrating the structure of the partition member of this invention. The figure for demonstrating the structure of the partition member of this invention.

101 Molding apparatus 102 Moving mold 103 Fixed mold 104 Common mold

Claims (9)

A first molding space for molding at least the first molded product; a second molding space for molding the second molded product;
A molding material injection port for injecting a molding material into the first molding space and the second molding space;
The first molding space and the second molding space each have a connection portion, and the first molding space and the second molding space communicate with each other via the connection portion, A molding apparatus in which a cross-sectional area of a joint portion between the connection portions of the first molding space and the second molding space is smaller than a cross-sectional area of another region in the vicinity of the joint portion. A first molding space for molding at least the first molded product; a second molding space for molding the second molded product;
A first runner groove provided on the first molding space for molding a runner communicating with the surface of the first molded product, and the second molding provided on the second molding space. A second runner groove communicating with the product surface;
A molding material injection port communicating with the first runner groove and the second runner groove;
The first molding space and the second molding space include the first runner groove and the second runner groove, and a connection portion that connects the first molding space and the second molding space. Communicated via
A molding apparatus in which a cross-sectional area of a contact portion of the connection portion between the first molding space and the second molding space is smaller than a cross-sectional area of another region in the vicinity of the contact portion. At least two or more molded products are connected at the connection portion, and the cross-sectional area at the contact point of the connection portion is formed smaller than the cross-sectional area of other regions near the contact point,
A molded article in which an injection mark for injecting a molding material is formed on at least one surface of the molded article. A rod-shaped first support member provided with a first opening;
A rod-shaped second support member provided with a first convex portion meshing with the first opening;
A rod-shaped first shaft member provided with a second convex portion meshing with the first opening, and having a concave portion formed on a side surface;
A rod-shaped second shaft member provided with a fixing portion that meshes with the recess,
An injection mark of a molding material is formed on at least one surface of the first support member, the second support member, the first shaft member, and the second shaft member,
The first support member, the second support member, the first shaft member, and the second shaft member are joined together, and a cross-sectional area at a contact point of the joint portion is the joint portion. A molded product that is smaller than the cross-sectional area of other regions in the vicinity. In claim 4,
A second opening is formed on the surface of the first support member;
A third opening is formed on the surface of the second support member;
A molded article in which a protrusion that meshes with the first opening and the second opening is formed at an end of the first shaft member. In claim 4 or claim 5,
A plurality of the recesses are provided on a side surface of the first shaft member, and the plurality of recesses are substantially the same shape and size, respectively.
A molded product in which a plurality of the fixing portions that mesh with the plurality of recesses are provided on a side surface of the second shaft member. A model component provider including at least a first model component and a second model component,
The first model component has a hemispherical portion, and the hemispherical portion is connected to the surface of the second model component by substantially point contact. A model component provider including at least a first model component and a second model component,
The first model component and the second model component each have a hemispherical portion, and the hemispherical portions are connected to each other by substantially point contact.   9. The model component provider according to claim 7, wherein the model component provider is molded by injection molding using a pin gate.