KR101589444B1 - Insert injection molding apparatus with moving device - Google Patents

Insert injection molding apparatus with moving device Download PDF

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Publication number
KR101589444B1
KR101589444B1 KR1020150060742A KR20150060742A KR101589444B1 KR 101589444 B1 KR101589444 B1 KR 101589444B1 KR 1020150060742 A KR1020150060742 A KR 1020150060742A KR 20150060742 A KR20150060742 A KR 20150060742A KR 101589444 B1 KR101589444 B1 KR 101589444B1
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KR
South Korea
Prior art keywords
plate
mold
insert
insert member
lower mold
Prior art date
Application number
KR1020150060742A
Other languages
Korean (ko)
Inventor
임순오
Original Assignee
주식회사 수오테크
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Publication date
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Priority to KR1020150060742A priority Critical patent/KR101589444B1/en
Application granted granted Critical
Publication of KR101589444B1 publication Critical patent/KR101589444B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/42—Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to an insert injection molding apparatus with a moving means and, more specifically, to an insert injection molding apparatus with a moving means continuously feeding a strap-shaped insert member inside a mold where insert injection molding is performed, pushing up a lower mold where the insert member is mounted with a pushing plate to combine with an upper mold, and moving a molded article finishing injection molding in parallel with the moving means to be wound around a winding reel. According to the present invention, feed, discharge of the insert member, and opening and closing of the mold, etc. are performed in a certain time, so a certain amount of products are produced within the determined time, thereby reducing defect rate, and improving product quality.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an insert injection apparatus having a moving means,

[0001] The present invention relates to an insert injection apparatus having a moving means, and more particularly, to an insert injection apparatus having a moving means, and more particularly, to an insert injection apparatus having a moving means, And a moving means which is coupled to the metal mold and is wound on the take-up reel by moving the finished injection product in parallel to the moving means.

Injection is a molding method of a plastic product in which a resin in a molten state is injected into a mold having a cavity of a certain shape to produce a product having a desired shape.

Generally, the liquid resin is injected into the cavity through the injection port provided in the mold, and when the resin is cooled and solidified while the mold is closed, the product is taken out from the mold. 2. Description of the Related Art [0002] In recent years, an insert injection method has been widely used in which an electronic product such as a communication terminal is increasingly used, and a metal material in which an electronic circuit is formed and a resin material of a plastic body are combined.

In the insert injection, an insert member (mainly metal) is inserted and fixed in the mold, and resin is injected into the mold so that the insert member and the injection resin are coupled to each other. Especially, in the vertical injection apparatus in which the insertion of the insert member and the movement of the mold are performed in the vertical direction, the mold is sealed and opened and the articles are discharged according to the relative movement of the upper or lower mold.

In the conventional vertical injection apparatus, an ejecting pin is provided inside a mold, and a finished product is separated from a mold by using an ejecting pin protruding from the inside of the mold.

Also, the method of inserting the insert member into the metal mold is not continuously supplied, but the individual parts are seated one by one by the person or the transfer robot.

In this method, the molding time and preparation time of a product take a long time, and a lot of manpower is needed, which is disadvantageous in cost reduction and reduction of product defect rate.

KR 20-2009-0012612 U KR 10-1442116 B1 KR 10-2013-0062121 A

According to an aspect of the present invention, an insert member connected by a connecting strip is continuously supplied to an injection mold while being unwound from a supply reel, a lower plate is provided under the lower mold on which the insert member is mounted, An insert injection mechanism provided with a moving means for pushing up the plate by an ejecting pin provided at a lower portion of the plate and reciprocating in the vertical direction and causing the upper mold and the lower mold to closely contact each other by magnetic force or air- And an object of the present invention is to provide a device.

In addition, a moving means having a fixing pin protruding up and down on the surface is disposed on the side of the injection mold so as to move the finished injection product in parallel, and when the mold is opened, the connection member is pulled by the fixing pin, Which is provided with a moving means for winding the insert to be wound on the insert.

In order to solve the above-described problems, the present invention is devised to continuously feed an insert member (102) wound on a supply reel (210) so that the finished product (100) is wound on a take- The upper mold 230 has a cavity 233 through which molten resin is injected into the cavity 233 and has an open bottom and a fixing means 234 at the edge thereof. and; The insert member 102 placed on the upper surface of the upper mold 230 is pushed up into the cavity 233 and the upper surface of the insert member 102 is coupled to the fixing means 234 of the upper mold 230 A lower mold 240 on which a fixing means 245 is installed; A driving means 250 installed below the lower mold 240 to push up all or a part of the lower mold 240 in the direction of the upper mold 230; And moving means 260 for moving the article 100 parallel to the take-up reel 220 in parallel to the upper surface of the lower mold 240 after the insert injection is completed, 234, and 245 are electromagnets or adsorption cylinders.

The lower mold 240 includes a first plate 241, a second plate 242, a third plate 243 and a plate 244 which are vertically movably installed from below and the insert member 102 And the article 100 is mounted on the upper surface of the plate 244 and the fixing means 245 is installed on the upper edge of the plate 244. [

The driving means 250 includes an ejecting pin 251 contacting the bottom surface of the third plate 243 or the plate 244; And a driving cylinder 252 connected to the ejecting pins 251 at the ends of the axes disposed up and down and moving the ejecting pins 251 in the vertical direction.

The moving means 260 is in the form of a flat plate and has two grooves formed in a straight line in the traveling direction of the article 100; Is inserted into a pinhole (104a) formed in a connecting strip (104) connecting the insert member (102) by moving up and down by a moving means, And a fixing pin 263 that moves in parallel within the groove to move the article 100 in parallel.

According to the present invention, since the supply and discharge of the insert member and the opening and closing of the mold are performed within a predetermined time, it is possible to produce a certain amount of product for a predetermined period of time, have.

In addition, since the supply and winding of the insert member and the discharge of the product are all performed by an automated machine, the labor cost and the production cost can be reduced, thereby enhancing the price competitiveness of the product.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the structure of a printing article produced by the injection apparatus of the present invention. Fig.
2 is a conceptual view showing a schematic configuration of an injection apparatus;
Fig. 3 is an exploded perspective view showing a combined relationship between the mold and the moving means; Fig.
4 is a sectional view showing a detailed structure of a mold;
5 is a cross-sectional view illustrating a state in which the lower mold is coupled to the upper mold while the third mil plate is lifted.
6 is a sectional view showing a state in which the third plate is separated from the lower mold while descending.
7 is a cross-sectional view showing a state in which a lower mold is lowered and a finished product is discharged.
8 is a perspective view showing a state in which the article is conveyed in a state in which the article is placed on the moving means.

Hereinafter, an " insert injection apparatus equipped with a moving means "(hereinafter referred to as an " injection apparatus ") according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing the structure of a print product manufactured by the injection apparatus of the present invention. FIG.

The field of use of the injection apparatus 200 of the present invention is an antenna built in a communication terminal, an LED module used in an LED illumination device, and a PCB circuit device of an electronic product. However, it can be applied to any field where the insert injection process is applied.

As shown in Fig. 1, the article of manufacture 100 produced by insert injection has an insert member 102 made of metal and a resin member 102 formed to surround part or all of the surface of the insert member 102 106). First, resin injects the molten resin in a state where the insert member 102 is seated in the inside of the mold, so that the resin covers part or all of the insert member 102.

Two connecting straps 104 are arranged in parallel on the right and left sides of the insert member 102. A plurality of insert members 102 are connected between the two connecting straps 104 on the left and right sides. The connecting strip 104 serves to fix the insert member 102 and to move the insert member 102 from the supply reel 210 to the take-up reel 220. To this end, a pin hole 104a is formed in the connecting strip 104 at regular intervals. A separate pin is inserted into the pinhole 104a to pull the connecting strip 104 in a certain direction.

The connecting strip 104 is moved in a state where the insert members 102 are fixed in parallel at regular intervals between the two connecting strips 104 disposed on the left and right sides and when the insert member 102 is inserted into the mold, When the injection is performed, the article 100 with the resin member 106 bonded to the surface of the insert member 102 is discharged. The finished injection product 100 is wound on a take-up reel 220 and released as a final product.

FIG. 2 is a conceptual diagram showing a schematic configuration of an injection apparatus, FIG. 3 is an exploded perspective view showing a combination of a mold and a moving means, and FIG. 4 is a sectional view showing a detailed structure of a mold.

The injection apparatus 200 used in the present invention mainly includes a supply reel 210 for continuously supplying the insert member 102, a take-up reel 220 for continuously winding and storing the finished injection product, and a cavity A lower mold 240 for inserting and fixing the insert member 102 into an opening formed in a lower portion of the upper mold 230 and a lower mold 240 for moving the upper mold 240 up and down And a moving means 260 for moving the article 100 after the insert injection is completed to the take-up reel 220 in parallel.

The feed reel 210 and the take-up reel 220 may be provided with a separate rotating device so that the insert member 102 is seated at the correct position while rotating and stopping at a predetermined speed. Since the feed reel 210 and the take-up reel 220 have a function of unwinding or winding the material to be injection-molded, it is desirable to control the operation and rotation speed to be the same.

The mold is composed of the upper mold 230 and the lower mold 240. Since the upper mold 230 and the lower mold 240 are used in the vertical injection type apparatus, the upper mold 230 and the lower mold 240 are disposed on the upper side and the lower side respectively, The upper mold 230 and the lower mold 240 are coupled to each other to maintain the closed state.

In the present invention, it is assumed that the upper mold 230 is kept fixed and the lower mold 240 is moved up and down to supply and discharge the insert member 102 and discharge the article 100.

One or more resin injection ports 231 and 232 for injecting molten resin into the upper mold 230 may be provided and the resin injection ports 231 and 232 may be formed in the cavity 233 ). The resin injected from the outside flows into the cavity 233, meets with the insert member 102, and is shaped into the same shape as the space of the cavity 233.

In the present invention applied to the vertical injection apparatus, the bottom surface of the upper mold 230 is opened so that the cavity 233 is exposed to the outside. The lower mold 240 is coupled to the lower exposed surface of the cavity 233 to seal the entire mold.

A fixing means 234 is provided at the bottom edge of the upper mold 230. The fixing means 234 is constituted by an electromagnet or an adsorption cylinder and serves to hold the lower mold 240 contacting the bottom surface of the upper mold 230 so as not to be separated during the molding process.

In the case of using an electromagnet, it is preferable to attach an electromagnet of an opposite polarity to a corresponding position of the lower mold 240 to increase the coupling force.

The lower mold 240 is disposed below the upper mold 230 and serves to push the insert member 102 seated on the upper surface into the cavity 233 of the upper mold 230. Further, it is possible to move the article 100, which has been combined with the resin body 106, to the take-up reel 220 by using the moving means 260.

The lower mold 240 has a structure in which four components are stacked in order from the bottom to the inside of the body in which a certain space is formed.

A first plate 241 is provided at the bottom of the lower mold 240 and a second plate 242, a third plate 243 and a plate 244 are sequentially installed thereon. The first plate 241, the second plate 242, the third plate 243, and the plate 244 are all configured to move up and down. The plate and plate 244 can move together or separately, but when the bottom plate is moved up, the plate above it will move together.

The three plates are configured to move the uppermost plate 244 up and down and the plate 244 is coupled to the bottom opening of the upper mold 230 with the insert member 102 seated. When the plate 244 is coupled to the bottom surface of the upper mold 230, the entire injection mold is closed and the insert injection molding process proceeds. Therefore, the shape and size of the plate 244 are made equal to the shape and size of the bottom opening of the upper mold 230.

Since the three plates and the plate 244 should not be displaced while moving in the vertical direction, a rail or a guide for maintaining the orientation may be provided.

A driving means 250 is provided below the lower mold 240. The driving means 250 pushes up all or a part of the lower mold 240 or a plate or plate 244 to be engaged with the upper mold 230 So as to generate a force. An ejecting pin 251 may be installed on the driving cylinder 252 having an axis up and down to allow the ejecting pin 251 to selectively push up the plate or the plate 244.

When the ejecting pin 251 pushes up the first push plate 241, the second push plate 242, the third push plate 243 and the plate 244 on the push plate 251 are all raised. However, only the third push plate 243 In the case of pushing, only the plate 244 will move together.

A fixing means 245 is provided at a portion of the lower mold 240 facing the bottom edge of the upper mold 230 from the upper surface thereof. In the present invention, the fixing means 245 is provided on the upper surface of the plate 244 among the constituent elements of the lower mold 240.

The fixing means 245 of the lower mold 240 corresponds to the fixing means 234 of the upper mold 230 and is composed of an electromagnet or an adsorption cylinder. If either one is an adsorption cylinder, an adsorption plate may be used elsewhere.

The moving means 260 is installed on the side surface of the lower mold 240 so as to move in the direction of the take-up reel 220 while pulling the finished article 100 with the injection molded member on its surface. To this end, it is preferable that the upper surface of the moving means 260 is located at the same height as the upper surface of the lower mold 240.

The structure of the moving means 260 and the moving method of the article 100 will be described later.

The process of injecting inserts and moving articles using the injection apparatus 200 having such a structure will be described in more detail.

FIG. 5 is a cross-sectional view showing a state in which the lower mold is coupled to the upper mold while the third lower plate is lifted, FIG. 6 is a sectional view showing a state in which the third lower plate is separated from the lower mold, Fig. 8 is a perspective view showing a state in which the article is conveyed while the article is placed on the moving means. Fig.

When an object to be formed (insert member) released from the supply reel 210 is positioned on the plate 244 of the lower mold 240, the automatic positioner (not shown) is adjusted to be in the correct position through rotation or parallel movement . Then, the ejecting pin 251 of the driving means 250 is lifted up and pushes up the third plate 243, which causes the plate 244 to rise together. The plate 244 is coupled to the bottom surface of the upper mold 230 in a state where the insert member 102 is seated and thereby the mold member is closed so that the insert member 102 is inserted into the cavity 233. [

At this time, the two fixing means 234 and 245 positioned on the lower side are in contact with each other and generate a coupling force between the upper mold 230 and the plate 244. In the case of an electromagnet, a polarity in which attracting force is generated by the supply of electric current is generated, and in the case of an adsorption cylinder, the attracting plate is closely adhered by the attraction force.

When the distance between the upper mold 230 and the lower mold 240 is short, the ejecting pin 251 hits the third plate 243 from below for a short time to cause the third plate 243 to move upward It might be.

Next, as shown in FIG. 6, the ejecting pin 251 descends and the third plate 243 comes down together. In this state, the plate 244 is still fixed to the bottom surface of the upper mold 230 because the fastening force of the fixing means 234 and 245 is maintained. Injection of the molten resin into the cavity 233 is performed. In the interior of the cavity 233, a resin body 106 is coupled to the insert member 102 to produce the article of manufacture 100.

Next, as shown in FIG. 7, the binding force of the fixing means 234 and 245 is released when the molding of the article 100 is completed. This causes the plate 244 to move downward and return to the inside of the lower mold 240 again. A finished article 100 is placed on the surface of the plate 244 and the moving means 260 is moved to move the article 100 in the direction of the take-up reel 220. The article of manufacture 100 is wound on a take-up reel 220 and released as a final product.

The next insert member 102 connected by the connecting strip 104 is placed on the top surface of the plate 244 while the moving means 260 pulls the delivery item 100. [ Then, the production of the article (100) is successively performed while repeating the first process.

8, the moving means 260 includes a relatively flat plate-shaped seating plate 261 on which the article of manufacture 100 is placed, a drive shaft 262 extending horizontally on one side of the seating plate 261, And a fixing pin 263 protruding downward or downward from the surface of the seating plate 261. A means for moving the fixing pin 263 up and down, a means for moving the fixing pin 263 in the horizontal direction, and a means for rotating or parallelly moving the driving shaft 262 are further provided on the bottom surface of the seating plate 261 Which is not a core feature of the present invention, and a detailed description thereof will be omitted.

In the seating plate 261, two grooves are formed in a straight line in the traveling direction of the article 100, and a fixing pin 263 is provided below each groove. The fixing pin 263 may be moved up and down by the moving means under the seat plate 261 to move in parallel along the groove. The fixing pin 263 is formed in the same shape and size as the pinhole 104a formed in the connecting strip 104 and can be inserted into the pinhole 104a.

When the finished injection product 100 is placed on the seating plate 261 of the moving means 260, the fixing pin 263 is put on the pinhole 104a while the fixing pin 263 is lifted from below. When the fixing pin 263 is moved in parallel with the pinhole 104a being engaged with the fixing pin 263, the printing product 100 moves together. Usually, the same number of fixing pins 263 as the number of the projected articles 100 to be injected at one time is provided, thereby making the number of the articles 100 parallel to the injection molding equal.

When the delivery item 100 is moved by a predetermined distance, the fixing pin 263 returns to its original position in a state where it is moved down below the groove. Then, it is inserted into the connecting strip 104 of the newly manufactured article 100 and moved repeatedly by the same distance.

The articles 100 moved in parallel by the moving means 260 are wound on a take-up reel 220 and stored.

In this manner, the process of continuous insert injection, discharge of the product 100, and winding and holding on the take-up reel 220 are performed.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

100: article of manufacture 102: insert member
104: connecting strip 104a: pin hole
106: resin body 200: injection device
210: supply reel 220: take-up reel
230: upper mold 231, 232: resin injection port
233: cavity 234, 245: fixing means
240: Lower mold 241: First plate
242: second plate 243: third plate
244: Plate 250: Driving means
251: ejecting pin 252: driving cylinder
260: moving means 261: seating plate
262: drive shaft 263:

Claims (4)

An insert injection apparatus having a function of feeding a finished article (100) wound on a take-up reel (220) when the insert member (102) wound on the feed reel (210)
An upper mold 230 having a cavity 233 through which the molten resin is injected into the cavity 233 and a lower surface of the cavity 233 is opened and fixing means 234 is installed at an edge thereof;
The insert member 102 placed on the upper surface of the upper mold 230 is pushed up into the cavity 233 and the upper surface of the insert member 102 is coupled to the fixing means 234 of the upper mold 230 The second plate 242, the third plate 243 and the plate 244 are installed so as to be vertically movable from the bottom to the bottom, and the insert 245, The member 102 and the article of manufacture 100 are seated on the upper surface of the plate 244 and the fixing means 245 comprises a lower mold 240 installed on the upper edge of the plate 244;
A driving means 250 installed below the lower mold 240 to push up all or a part of the lower mold 240 in the direction of the upper mold 230;
And a moving means 260 for completing the insert injection and moving the article 100 parallel to the take-up reel 220 in parallel with the upper surface of the lower mold 240,
Characterized in that the fixing means (234, 245) are composed of electromagnets and are selectively coupled to each other according to the supply of electric current. delete The method according to claim 1,
The drive means (250)
An ejecting pin 251 contacting the bottom surface of the third plate 243 or the plate 244;
And driving cylinders (252) connected to the ejecting pins (251) at the ends of the axes disposed up and down and moving the ejecting pins (251) in the vertical direction. delete
KR1020150060742A 2015-04-29 2015-04-29 Insert injection molding apparatus with moving device KR101589444B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110962391A (en) * 2019-12-30 2020-04-07 东莞市嘉宏机电科技有限公司 Ejection mechanism of bidirectional combined die
CN114872277A (en) * 2022-03-30 2022-08-09 郯城县泓邦塑柄有限公司 Injection mold for outer layer of blank piece and preparation method thereof
CN116423748A (en) * 2023-05-09 2023-07-14 温州意华接插件股份有限公司 Horizontal injection molding machine for producing and manufacturing flat needle material strips

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Publication number Priority date Publication date Assignee Title
JPH0356545B2 (en) * 1983-08-12 1991-08-28
KR100756287B1 (en) * 2006-10-27 2007-09-06 김대수 Method and insert injection molding machine for manufacturing dual socket housing
KR100832743B1 (en) * 2007-11-30 2008-05-27 주식회사 신양엔지니어링 Assembly pin of taking out insert nusts for case of mobile phone and jig thereof
KR20090074448A (en) * 2008-01-02 2009-07-07 주식회사 케이스랩 A manufacturing method of cover for portable electronic device
KR20090012612U (en) 2008-06-05 2009-12-09 (주)신영프레시젼 Vertical injection molding for injection molded articles with metal elements
KR20130062121A (en) 2011-12-02 2013-06-12 엘지전자 주식회사 Mehtod of injection and molding in rotary type vertical injection molding machine and rotary type vertical injection molding machine thereof
KR101442116B1 (en) 2013-05-09 2014-09-23 (주)원일유압 ejector for vertical insert injectoin molding machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0356545B2 (en) * 1983-08-12 1991-08-28
KR100756287B1 (en) * 2006-10-27 2007-09-06 김대수 Method and insert injection molding machine for manufacturing dual socket housing
KR100832743B1 (en) * 2007-11-30 2008-05-27 주식회사 신양엔지니어링 Assembly pin of taking out insert nusts for case of mobile phone and jig thereof
KR20090074448A (en) * 2008-01-02 2009-07-07 주식회사 케이스랩 A manufacturing method of cover for portable electronic device
KR20090012612U (en) 2008-06-05 2009-12-09 (주)신영프레시젼 Vertical injection molding for injection molded articles with metal elements
KR20130062121A (en) 2011-12-02 2013-06-12 엘지전자 주식회사 Mehtod of injection and molding in rotary type vertical injection molding machine and rotary type vertical injection molding machine thereof
KR101442116B1 (en) 2013-05-09 2014-09-23 (주)원일유압 ejector for vertical insert injectoin molding machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110962391A (en) * 2019-12-30 2020-04-07 东莞市嘉宏机电科技有限公司 Ejection mechanism of bidirectional combined die
CN114872277A (en) * 2022-03-30 2022-08-09 郯城县泓邦塑柄有限公司 Injection mold for outer layer of blank piece and preparation method thereof
CN114872277B (en) * 2022-03-30 2023-11-14 郯城县泓邦塑柄有限公司 Injection mold for outer layer of blank and preparation method thereof
CN116423748A (en) * 2023-05-09 2023-07-14 温州意华接插件股份有限公司 Horizontal injection molding machine for producing and manufacturing flat needle material strips

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