KR102240002B1 - Injection moding apparatus for eyeglass front having integrated nose support and eyeglass front having molded and integrated nose support - Google Patents

Abstract

The present invention relates to an injection molding apparatus for an eyeglass front having an integrated nose support, which performs, in molding an eyeglass front in which a nose support is integrally formed through injection molding, molding such that an inner wall surface of the nose support that is supported by contacting a nose area when worn is formed in a protruding shape, and accordingly, the formation of an ergonomic support state of the eyeglass front can be possible through the nose support. The present invention comprises: a front molding part including first and second moldings in which front molding grooves that form a front molding space are formed to face each other, wherein in the front molding space, a bridge forming part is communicatively formed between rim molding parts, and configured to mold a front body in which rim parts are integrally formed on opposite sides of a bridge part through a molten material injected into the front molding space; and nose support molding parts formed on the inside of the rim molding parts and configured to form nose support molding parts that are in communication with the rim molding parts.

Description

TECHNICAL FIELD The present invention relates to an injection molding apparatus for a spectacle front having an integrated nose support, and a spectacle front having an integrated nose support molded through the injection molding apparatus, and an eyeglass front having molded and integrated nose support.

The present invention relates to an injection mold device for a spectacle front having an integral nose support, and to a spectacle front having an integral nose support molded through the same, and more particularly, in molding a spectacle front having an integral nose support through injection molding. , Glasses having an integrated nose support that enables the formation of an ergonomic support state of the front of the glasses through the nose support by configuring the inner wall surface of the nose support supported by contacting the nose when worn to be formed into a protruding shape. It relates to an injection mold device for a front, and a spectacle front having an integral nose support molded through the same.

As is well known, the spectacle front has a rim on which lenses are fixed on both sides of the bridge, and the legs are hinged on both sides of the front to form a spectacle frame for mounting a pair of lenses on the face.

Such spectacle fronts have traditionally been made of metal or plastic, and in particular, in recent years, spectacle fronts made of plastics having excellent flexibility and light weight, which can be displayed in various shapes or colors, are predominantly.

In addition, between the bridge and the rim of the plastic glasses front, a nose support is formed to support the wearer's nose to position the glasses front in the correct position of the face. Traditionally, the bridge part and the rim are formed in the process of molding the glasses front through injection molding. The nose rest is formed to protrude between the rims.

In this way, when the nose support is integrally formed in the molding process of the glasses front, the glasses front and the nose support form a single material and a single body, so not only the speed and incidental costs according to production are reduced, but also the nose support is prevented from external force. As a result, the problem of being separated from the front of the glasses is solved.

However, due to the nature of injection molding, the nose support part integrally molded with the spectacles front faces the restriction of demolding, and the inner surface contacting the nose part forms a flat or curved surface rather than a protruding shape. It is difficult to form a stable support state of the part.

Accordingly, the conventional nose support integrally molded with the front of the glasses has a limitation in that it is difficult to secure a standardized support state of the front when worn, since it cannot be molded in a shape that considers the height or width of the wearer's nose.

In consideration of this, in the art, by separately molding the nose support and then fixing the separately formed nose support to the front of plastic glasses manufactured through injection molding or bonding, general problems due to the shape constraints of the nose support To solve the problem.

However, the method of forming a nose support in which the separately molded nose support is coupled to the front of the glasses as described above requires separate molding and press-fitting of the nose support, and an assembly process according to bonding, resulting in an increase in incidental costs for manufacturing. .

In addition, a problem in that the coupling structure formed between the spectacle front and the nose support is easily disassembled due to repeated wearing may occur, and if a dimensional tolerance between the spectacle front and the nose support occurs, a problem in that the assembly condition may be deteriorated.

KR 1020100122755 A KR 1020110011472 A KR 2020120002268 U

An object of the present invention was conceived to solve the above problems, in molding the front of the glasses in which the nose support is integrally formed through injection molding, the inner wall surface of the nose support portion that is supported by contacting the nose portion when worn is protruding. By configuring to be molded into, an injection mold device for a glasses front having an integral nose support capable of forming an ergonomic support state of the glasses front through the nose support, and a glasses front having an integral nose support molded through the nose support. It is in the offering.

The injection mold apparatus for a nose support integrated spectacle front according to the present invention,

It consists of a first mold and a second mold formed by facing the front molding grooves forming the front molding space formed by communicating with the rim molding part on both sides of the bridge molding part, and through the melt injected into the front molding space, both sides of the bridge part A front mold part for forming a front body in which the rim part is integrally formed; Consisting of including a nose support mold portion forming a nose support molded portion communicating with the rim molding portion inside the rim molding portion,

The nose support part mold part,

An advance and retreat path formed inside the rim forming part;

A movable core member disposed on both sides of the advancing and retreating path in an advancing and retreating structure, and advancing along the advancing and retreating path to form a noserest forming space in the inside of the rim forming part to communicate with the rim forming part to be left and right partitions; And

When the first mold and the second mold are in close contact with each other, the movable core member advances outward along the advancing and retreat path to form a nose support molding space inside the rim forming part, and when the first mold and the second mold are spaced apart, the movable core Including a movable unit that enters the member inward to form a demolding space in which the nose support molding space is expanded,

The movable core member,
A movable block arranged in an advancing and retreating structure in the mold having the advancing and retreating path formed in association with the movable unit to advance and retreat;
It is assembled with the movable block and is arranged in an advance and retreat structure in the advance and retreat path, and comprises a nose support forming core formed such that a nose support forming groove in the shape of an inner wall of the nose support is concave inwardly on the outer wall,

It characterized in that it is configured to be integrally molded to the front of the spectacles the required shape through the replacement installation of the nose support molding core.

More preferably, the movable unit includes an inclined guide groove formed in an inclined structure in each movable core member disposed in a forward and backward structure in the first mold; It is disposed in the second mold in close contact with the first mold, and comprises an inclined guide that interferes with the inclined guide groove of the movable core member in an inclined guide structure.

Further, in the second mold, when the second mold is in close contact with the first mold and the movable core member advances along the advancing and retreat path, the movable core member enters between the advanced movable core members to support the movable core member, and the movable core member is rim. It is formed by adding a support pin to be in close contact with the molded part.

On the other hand, the nose support unit-integrated spectacle front according to the present invention is characterized in that it is manufactured by the injection mold apparatus for the nose support unit-integrated spectacle front according to the present invention.

As described above, in the present invention, in the present invention, an open/closed type integrally formed between the first mold and the second mold forming the front molding space by being in close contact with each other, inside the rim molding part of the front molding space, and integrally forming a noserest having an inwardly protruding shape. By arranging the mold part of the nose support part, it is possible to overcome the limitation of the shape of the nose support due to demolding.

The nose support mold portion is configured such that the movable core member advances and retreats according to the opening and closing of the mold, so that the nose support portion formed in a shape protruding inwardly to the inside of the rim molding portion can be stably removed, and as a result, the height and width of the wearer's nose portion It has the peculiarity that it is possible to integrally mold the nose support part suitable for the body shape of the wearer including

In addition, through the replacement installation of the nose support forming core constituting the movable core member, it is possible to form the nose support portion protruding inward in various dimensions, so that the manufacturing cost of individually manufacturing the mold device according to the shape of the nose support portion is reduced. It is possible to solve the problem that is required excessively.

1 is a view showing the overall configuration of the integrated nose support portion of the glasses front molded through the injection mold device for the glasses front proposed as a preferred embodiment in the present invention,
2 is a view showing the overall configuration of the injection mold device for the front of the glasses proposed as a preferred embodiment in the present invention,
3 to 5 are operational state diagrams sequentially showing the molding process of the eyeglass front integrated with the nose support through the injection mold device for the eyeglass front proposed as a preferred embodiment in the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the injection mold device for the nose support integrated spectacle front proposed as a preferred embodiment in the present invention.

1 is a view showing the external configuration of an integrated spectacle front with a nose support formed through an injection mold device for a spectacle front proposed as a preferred embodiment in the present invention, and FIG. 2 is a spectacle proposed as a preferred embodiment in the present invention. It shows the overall configuration of the front injection mold device, and FIG. 3 shows the detailed configuration of the nose support mold part in the injection mold device for spectacles front proposed as a preferred embodiment in the present invention, and FIGS. 4 to 5 Is an operational state diagram sequentially showing the molding process of the eyeglass front with an integrated nose support through the injection mold device for the eyeglass front proposed as a preferred embodiment in the present invention.

In the injection mold apparatus for an integrated nose support part glasses front according to the present invention, as shown in FIGS. 1 to 2, in the front molding space 130 formed between the first mold 110 and the second mold 120, a gate Through the injection-hardening of the molten material, the rims 12 are integrally formed on both sides of the bridge 11 to form the spectacle front 10.

The eyeglass front injection mold apparatus 1 has a front molding groove forming a front molding space 130 formed by communicating rim molding parts 132 on both sides of the bridge molding part 131 as shown in FIG. 2. A front body comprising a first mold 110 and a second mold 120 formed facing each other and having rims 12 formed on both sides of the bridge 11 through the melt injected into the front molding space 130 It includes a front part mold part 100 for molding.

According to the present embodiment, one of the first mold 110 and the second mold 120 is configured as a fixed mold, and the other mold is configured as a movable mold that is in close contact with the fixed mold.

In addition, these molds 110 and 120 are in close contact with each other to form a closed front molding space 130, and a melted material is injected and cured in the front molding space 130 to injection mold the spectacle front 10.

In addition, when the injection molding of the spectacle front 10 is completed, the movable mold is separated from the fixed mold to open the front molding space 130, thereby promoting the demolding of the injection molded spectacle front in the front molding space 130, which It is the same as the general one.

However, in this embodiment, in implementing the injection mold device 1 for the eyeglass front, the nose support communicating with the rim molding part 132 inside the rim molding part 132 forming the front molding space 130 By arranging the nose support part mold part 200 forming the molding part 133, as shown in FIG. 1, the nose support part of the shape protruding to the inside of the rim part 12 during the injection molding process of the glasses front 10 The integral molding of (13) is possible, and this is intended as the technical gist of the present invention.

The nose support part mold part 200 includes a forward and backward path 210 formed by cutting left and right inside the rim molding part 132 as shown in FIGS. 2 to 5; A nose support forming portion (which is disposed on both left and right sides of the advance and retreat path 210 in an advance and retreat structure, and advances along the advance and retreat path 210 and communicates with the rim forming part 132 on the inner side of the rim forming part 132 ( A movable core member 220 forming the left and right partitions 133; And when the first mold 110 and the second mold 120 are in close contact with each other and are closed, the movable core member 220 advances to the outside along the advancing and retreating path 210 to form a nose support inside the rim forming part 12. When a portion 133 is formed and the first mold 110 and the second mold 120 are opened apart from each other, the advanced movable core member 220 enters the inside to open the nose support molding portion 133. It includes a movable unit 230 for forming a demoulding space.

In this embodiment, the advance and retreat path 210 is formed by cutting left and right in the first mold 110 constituting the fixed mold, and a pair of movable core members 220 are arranged symmetrically to the left and right in the advance and retreat path 210. Meanwhile, a movable unit 230 for advancing and retreating the movable core member 220 disposed in the first mold 110 is disposed in the second mold 120 of the movable type.

Further, the movable core member 220 includes a movable block 221 disposed in an advancing and retreating structure in the mold 110 in which the advancing and retreating path 210 is formed as shown in FIG. It is assembled with the movable block 221 and disposed in a forward and backward structure in the forward and backward path 210, and includes a nose support forming core 222 formed such that a nose support forming groove 222a in the shape of an inner wall of the nose support portion is concave inwardly on the outer wall. do.

Here, the movable block 221 and the nose support molding core 222 may be configured as a single body, and this is also intended as the scope of the present invention.

In this embodiment, the movable block 221 and the nose support forming core 222 are separately manufactured and configured to form a unitary body through assembly of bolts, etc., thereby requiring replacement and installation of the nose support forming core 222. It has the peculiarity that it is possible to integrally form the noserest part 13 of the shape to be formed on the spectacle front 10.

That is, the present invention is a variety of nose support parts 13 according to the body shape of the wearer's nose through one mold device through the replacement installation of the nose support molding core 222 having the required shape of the nose support molding groove 222a. A common injection molding of the glasses front 10 having) is possible.

In this embodiment, a guide bracket 223 for fixing each movable block 221 in a left and right forward/retreat structure is disposed in the first mold 110 of the fixed type, so that the pair of movable blocks 221 are guide brackets. Through 223, the first mold 110 is arranged in a left and right forward and backward structure.

In addition, at the assembly end of each of the movable blocks 221, a movable block 221 and a separately manufactured nose support molding core 222 are assembled, and each of the nose support molding cores 222 is formed by a movable block 221. It advances and retreats from side to side along the advance and retreat path 210 to promote formation and opening of the nose support molding part.

Preferably, the movable unit 230 includes an inclined guide groove 231 formed in an inclined structure in each movable core member 220; It is disposed in the second mold 120 in close contact with the first mold 110, and includes an inclined guide pin 232 interfered with the inclined guide groove 231 of the movable core member 220 in an inclined guide structure.

More preferably, the movable core member 220 is inwardly pressed so that the movable core member 220 is elastically transferred and positioned in the inward direction of the advancing and retreating path 210 by an elastic force. Add.

Therefore, as shown in FIG. 4, when the inclined guide pin 232 enters the inclined guide groove 231 of the movable core member 220 in the process of approaching the first mold 110 and the second mold 120, it is movable. The core member 220 simultaneously advances outward along the advancing and retreating path 210, and at this time, the tanji spring 233 is compressed.

On the contrary, when the inclined guide pin 232 advances from the inclined guide groove 231 of the movable core member 220 while the first mold 110 and the second mold 120 are spaced apart as shown in FIG. 5, the movable core The member 220 simultaneously enters the inner side along the advance and retreat path 210, and the tanji spring 233 compressed in this process is extended and restored.

Further, in the second mold 120, when the second mold 120 is in close contact with the first mold 110 so that the movable core member 220 advances along the advancing and retreating path 210, the advanced movable core member ( A support pin 240 is added that enters between 220 and supports the movable core member 220 so that the advanced movable core member 220 is in close contact with the rim forming part 132.

At this time, an abutment surface 241 of an inclined surface is formed at an end of the support pin 240 that is in contact with the rear end of the movable core member 220, and the advancing and retreating structure in the advancing and retreating path 210 by the abutting surface 241 of the inclined surface The movable core member 220 disposed as a movable core member 220 is supported and restrained while abutting with a support pin 240 entering between the tails of the movable core member 220 in an inclined structure.

In the following, the molding process of the integrated nose support part spectacle front through the injection mold device for spectacle front proposed as a preferred embodiment in the present invention will be described in detail with reference to FIGS. 4 to 5.

In a state where the first first mold 110 and the second mold 120 are spaced apart from each other to open the front molding space, the movable second mold 120 is attached to the fixed first mold 110 as shown in FIG. 4. While in close contact, a closed front molding space 130 is formed through the front molding grooves 111 and 121 formed on the opposite surfaces.

In the process of closing the molds 110 and 120, the inclined guide 232 disposed in the second mold 120 is the inclined guide groove 231 of each movable core member 220 disposed in the first mold 110. ), while entering the movable core member 220 at the same time along the advancing and retreating path 210, the inside of each rim forming part 132 forming the front forming space 130 and the movable core member 220 Between the outer sides of the nose support forming part 133 is formed, respectively.

At this time, the fixing pin 240 formed on the second mold 120 of the movable type is supported while contacting the movable core member 220 advancing along the exit path 210 in an inclined structure through the contact surface 241 of the beveled surface. Thus, the nose support forming core 222 of the movable core member 220 is stably adhered to the inner side of the rim forming unit 132 to the outside of the rim forming unit 132 by the nose support forming core 222 in close contact. The nose support molding part 133 is sealed to be formed.

In this state, a melt is injected into the front molding space 130 through a gate, and the injected melt is not only the front molding space 130 including the bridge molding part 131 and the rim molding part 132. , It is cured by flowing into the nose support molding part 133 formed in communication with the rim molding part 132 by the nose support part mold part 200.

Therefore, between the first mold 110 and the second mold 120, a bridge portion 11 and a pair of rim portions 12, and a pair of nose support portions protruding from the inside of the rim portion 12 ( The spectacle front 10 having an integral nose support portion having 13) integrally formed therewith is injection-molded.

At this time, the nose support molding part 133 is injection-molded into a shape protruding inward by a nose support molding groove 222a formed by concave inward to the outer wall of the nose support molding core 122, Can support ergonomically.

When the closing of the mold and injection molding of the front of the glasses are completed, the second mold 120 of the movable type is separated from the first mold 110 of the fixed type to open the front molding space 130 as shown in FIG. 5.

In this process, the fixing pins 140 disposed on the second mold 120 are discharged between the movable core members 220 and release the restraints of the advanced movable core members 220, while the movable core member 220 The inclined guide 232 formed with the inclined guide structure is also discharged from the inclined guide groove 231 while guiding and moving the movable core member 220 inward.

In this way, when the movable core member 220, which advances along the advance and retreat path 210 to form the nose support forming part 132, advances inward along the exit path 210, within the nose support forming part 132 The nose support 13 integrally formed with the glasses front 10 eliminates physical interference with the movable core member 220, and as a result, enables stable demoulding without physical interference with the movable core member 220 during the demolding process. .

Accordingly, in the present invention, in integrally forming the nose support portion 13 having a protruding shape on the inside of the rim portion 12 of the eyeglass front 10, the movable core member ( 220) through the mold part of the nose support part, it is possible to solve the problem that the nose support part is physically interfered with the demolding process, thereby causing a restriction on the demolding.

1. Injection mold device for glasses front
100. Front mold part 110. First mold
111. Front forming groove
120. 2nd mold 121. Front forming groove
130. Front molding space
131. Bridge forming part 132. Rim forming part
133. Nose support molded part
200. Nose support part, mold part 210. Progress and retreat
220. Movable core member
221. Movable block 221a. An inclined plane
222. Nose support molding core 222a. Nose support forming groove
223. Guide bracket
230. Moving unit 231. Inclined guide groove
232. Inclined guide 233. Tangi spring
240. Support pin 241. Beveled contact surface
10. Glasses front 11. Bridge part
12. Limb 13. Nose support

Claims (5)

It consists of a first mold and a second mold formed by facing the front molding grooves forming the front molding space formed by communicating with the rim molding part on both sides of the bridge molding part, and to both sides of the bridge part through the melt injected into the front molding space. A front mold portion for forming a front body in which the rim portion is integrally formed; Consisting of including a nose support mold part forming a nose support molding part communicating with the rim molding part inside the rim molding part,
The nose support part mold part,
An advance and retreat path formed inside the rim forming part;
A movable core member that is disposed on both left and right sides of the advance and retreat path in an advance and retreat structure, and advances along the advance and retreat path to form a nose support forming space in the inside of the rim forming part to communicate with the rim forming part to be left and right partitions; And
When the first mold and the second mold are in close contact with each other, the movable core member advances outward along the advance and retreat path to form a nose support molding space inside the rim forming part,
When the first mold and the second mold are spaced apart from each other, including a movable unit that enters the movable core member inward to form a demoulding space in which the nose support molding space is expanded,
The movable core member,
A movable block arranged in an advancing and retreating structure in the mold having the advancing and retreating path formed in association with the moving unit to advance and retreat;
It is assembled with the movable block and is arranged in an advance and retreat structure in the advance and retreat path, and comprises a nose support forming core formed such that a nose support forming groove in the shape of an inner wall of the nose support is concave inwardly,
An injection mold apparatus for a glasses front with an integrated nose support, characterized in that the nose support having a required shape through the replacement installation of the nose support molding core is configured to be integrally molded to the front of the glasses. delete The apparatus of claim 1, wherein the movable unit comprises: an inclined guide groove formed in an inclined structure in each movable core member arranged in a forward/retreat structure in the first mold;
An injection mold apparatus for a glasses front integrated with a nose support, comprising: an inclined guide disposed in a second mold in close contact with the first mold and interfering with an inclined guide groove of the movable core member in an inclined guide structure. The method of claim 1, wherein when the second mold is in close contact with the first mold and the movable core member advances along the advancing and retreat path, the second mold enters between the advanced movable core members to support the tail of the movable core member. , An injection mold apparatus for eyeglass front with integrated nose support, characterized in that a support pin is added to allow the movable core members advancing along the advance and retreat to be in close contact with the rim molding part. delete

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