WO2017018712A2 - Appareil de moulage par injection - Google Patents

Appareil de moulage par injection Download PDF

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Publication number
WO2017018712A2
WO2017018712A2 PCT/KR2016/007887 KR2016007887W WO2017018712A2 WO 2017018712 A2 WO2017018712 A2 WO 2017018712A2 KR 2016007887 W KR2016007887 W KR 2016007887W WO 2017018712 A2 WO2017018712 A2 WO 2017018712A2
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WO
WIPO (PCT)
Prior art keywords
gate
plate
injection
runner
product
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Application number
PCT/KR2016/007887
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English (en)
Korean (ko)
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WO2017018712A3 (fr
Inventor
박용준
Original Assignee
㈜건우정공
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Publication date
Application filed by ㈜건우정공 filed Critical ㈜건우정공
Publication of WO2017018712A2 publication Critical patent/WO2017018712A2/fr
Publication of WO2017018712A3 publication Critical patent/WO2017018712A3/fr

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  • the present invention relates to an injection mold apparatus, and more particularly, to an injection mold apparatus for enabling simultaneous manufacture of related products.
  • the plastic injection process is a final product is made through a step consisting of raw material drying process, injection machine raw material input process, injection molding process, molded product take-out process, post-processing and packaging process.
  • Such injection mold apparatus is mainly composed of two-stage molds and three-stage molds.
  • the two-stage mold apparatus is disclosed in Korean Utility Model Publication No. 20-1998-0042735 (published on September 25, 1998), Korean Utility Model Publication No. 20-2000-0001351 (published on January 25, 2000), Korean Patent Publication No. 10- 2015-0035608, published April 4, 2015.
  • This two-stage mold allows separate injection molded products and runners.
  • the conventional two-stage mold apparatus has a problem that the injection molded product is unbalanced because the length, the cross-sectional area of the gate, or the arrangement of the runners are not uniformly designed. This has the disadvantage of not injection molding several products having a relationship with each other through one mold device at the same time.
  • the conventional two-stage mold apparatus has the following problem.
  • the three-stage mold is a mold apparatus of a type suitable for producing small parts that require a large amount of production, products that require precision, products that should not be exposed to the outside, or large products that cannot easily flow resin. to be.
  • Such a three-stage mold is capable of automatic injection, which allows continuous production of injection molding products, thereby enabling mass production.
  • This three-stage mold is disclosed in Utility Model Publication No. 20-1989-0008614 (published on May 29, 1989) Publication No. 10-2006-0107001 (published October 13, 2006).
  • the conventional three-stage mold apparatus has a problem that the injection molded product is unbalanced because the length of the gate, the cross-sectional area, or the arrangement of the runners are not uniformly designed.
  • the conventional three-stage mold apparatus has a disadvantage that it is not possible to simultaneously injection molding several products having a relationship with each other through one mold apparatus.
  • the conventional three-stage mold apparatus has low dimensional accuracy.
  • the sprue was formed long, and the tunnel and side gates were introduced into the secondary sprue and runner, resulting in a lot of material waste during injection molding.
  • the present invention improves the problems of the conventional two-stage or three-stage mold apparatus, and provides an injection mold apparatus for implementing a multi-stage pin point gate in the three-stage mold apparatus.
  • the present invention for implementing an injection mold apparatus as described above is to shorten the cycle time (Cycle Time) of the injection molding during mass production of the product through the injection molding which is the advantage of the three-stage mold while simultaneously injection molding the products having a correlation with each other To increase production efficiency.
  • the present invention for implementing the injection mold apparatus as described above is to improve the separation efficiency of the product and the runner which is the advantage of the two-stage mold, it is possible to meet the advantages of the conventional two-stage mold and three-stage mold at the same time.
  • the injection mold apparatus of the present invention for achieving the above object comprises: a fixed side mold portion into which a resin for injection molding of a product is injected, and a movable side mold portion to be joined or separated from the fixed side mold portion according to driving of a driving unit;
  • a conventional injection mold apparatus comprising: an insert molding block having a plurality of molding grooves are provided between the fixed side mold portion and the movable side mold portion to simultaneously injection mold a plurality of products having assembly relations with each other, and the insert
  • the molding support block supporting the molding block is configured to be lifted and lowered, and the spurs and flow paths are formed in the fixed side mold part to supply resin for injection molding of the product to the insert molding block, and through the flow path.
  • the fixed-side mold portion, the first and second top fixing plates clamped to the injection machine, the upper plate coupled between the first and second top fixing plates, and a heating block located in the upper plate to heat the resin It is configured to include.
  • the movable side mold part may further include a fixing plate, a leg part coupled to the fixing plate, a support plate supported by the leg part, and the fixing plate and the leg part from the fixed side mold part when the driving part is driven. It is coupled to the eject guide pin for lifting up and down to form or separate the support plate, the plate and plate support plate which is provided in the space formed between the fixing plate and the leg portion and the support plate to be raised and lowered from the driving of the drive unit, and the plate support plate It comprises a plurality of mill pins for extracting the injection-molded products from the molded support block, and the return plate for returning the mill plate and the plate support plate and the mill pin to the original position using the spring force of the return spring.
  • the runner lock pin constituting the multi-stage is formed in the same or different lengths corresponding to the molding groove provided in the insert molding block.
  • the stripper plate is configured to be connected to the rod of the operating part fixed to the second upper fixing plate to enable the lifting and lowering.
  • the drive unit and the operating unit is a hydraulic cylinder.
  • the insert molding block is formed to form a gate hole communicating with the forming groove, the gate hole is configured to insert the gate pin formed on the stripper plate.
  • the gate pin may include a pin point gate, a side gate, a tunnel gate, a direct gate, a fan gate, an edge gate, One or more of a ring gate, a flash gate, a tab gate, a diaphragm gate, and a cashew gate.
  • the molding grooves formed in the insert molding block are separately formed or connected to the plurality of molding grooves by the cavity runner and / or the cavity gate.
  • the gate hole is formed in the upper end of the forming groove
  • the cavity runner and the cavity gate is formed in the lower end of the forming groove.
  • the present invention implements a multi-stage pin point gate in a three-stage mold apparatus, thereby mass-producing a product through injection molding, which is an advantage of three-stage molds, while simultaneously injection-molding products having a relationship with each other. By shortening the cycle time of injection molding, the production efficiency is increased.
  • the present invention can simultaneously meet the advantages of the conventional two-stage mold and three-stage mold while increasing the separation efficiency of the product and the runner, which is the advantage of the two-stage mold.
  • the present invention is to increase the dimensional accuracy for the product to be injection molded, it is possible to reduce the material waste during injection molding for the product.
  • the present invention freely adjusts the size of the runner, as well as select the gate pin of various forms (eg pin point, side, tunnel, direct, fan, edge, ring, flash, tab, diaphragm, cashew, etc.) You can do it.
  • the present invention is to reduce the quality deviation for each product when the flexible condition control (Flexible Condition Control) and quality reproducibility, that is, injection molding the same product again after the first injection molding for the product.
  • flexible condition control Flexible Condition Control
  • quality reproducibility that is, injection molding the same product again after the first injection molding for the product.
  • the present invention is to enable the injection molding of fusion and high-quality products, and to expect the effect of reducing the manufacturing and production costs.
  • FIG. 1 is a schematic cross-sectional view showing the structure of an injection mold apparatus according to an embodiment of the present invention.
  • Figure 2 is a schematic cross-sectional view showing a state in which the movable mold side of the injection mold apparatus is lowered in an embodiment of the present invention.
  • Figure 3 is a schematic cross-sectional view showing a moving state of the stripper plate in an embodiment of the present invention.
  • Figure 4 is a schematic cross-sectional view showing a state in which the product is withdrawn from the insert molding block in the embodiment of the present invention.
  • Figure 5 is a schematic cross-sectional view showing a state in which the product is extracted by the pin from the molded support block in the embodiment of the present invention.
  • the terms "comprise” or “having” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.
  • FIG. 1 is a cross-sectional schematic view showing the structure of an injection mold apparatus according to an embodiment of the present invention
  • Figure 2 is a cross-sectional schematic view showing a state in which the movable mold side of the injection mold apparatus is lowered in an embodiment of the present invention
  • Figure 3 4 is a cross-sectional schematic view showing a moving state of the stripper plate as an embodiment of the invention
  • Figure 4 is a schematic cross-sectional view showing a state that the product is drawn out from the insert molding block in the embodiment of the present invention
  • Figure 5 is molded in an embodiment of the present invention
  • the injection mold apparatus includes, in addition to the fixed side mold part 100 and the movable side mold part 200, an insert molding block 10 and a molding support.
  • Block 20 runner plate (Runner Plate) 30, the stripper plate (Stripper Plate) 40 is further included.
  • the fixed side mold part 100 is a molten resin for injection molding of a plurality of products (c1, c1 ', c2, c2', c3, c3 ', c4) is injected, the clamping mounting
  • the upper and lower plates 101 and 102, the upper and lower plates 103 coupled between the first and second upper and lower plates 101 and 102, and the resin are positioned in the upper and lower plates 103 to fix the resin.
  • It is configured to include a heating block 104 for heating to maintain at a temperature.
  • the movable side mold part 200 is to be joined to or separated from the fixed side mold part 100 according to the driving of a driving part (not shown), and the fixing plate 201 and the legs coupled to the fixing plate 201.
  • ringryeok is placed by comprising: a return pin 208 to return to its original position.
  • the driving unit is a hydraulic cylinder for raising and lowering the eject guide pin 204.
  • the insert molding block 10 is supported by a separate guide block (not shown) between the fixed side mold part 100 and the movable side mold part 200, and configured to move up and down,
  • a plurality of molding grooves 11 are provided to simultaneously injection molding a plurality of products (c1, c1 ', c2, c2', c3, c3 ', c4) having assembly relations with each other.
  • the molding groove 11 is formed in the insert molding block 10 according to the injection molding conditions of the products having a relationship with each other, and constitute the same groove in a pair of multi-stage or different shape of the molding groove, respectively Or it may be configured in the same way.
  • the insert molding block 10 is formed with a gate hole 12 in communication with the forming groove (11).
  • the forming grooves 11 are separately configured or connected to the cavity runner (R) and / or cavity gate (G) provided at the bottom of the plurality of forming grooves (11).
  • the cavity runner (R) is configured to be connected to the runner lock pin 33 having a length extending to the molded support block 20.
  • the molding support block 20 is configured to support the insert molding block 10.
  • the insert molding block 10 and the molding support block 20 are positioned on the supporting plate 203 included in the movable side mold part 200 to be linked to the lifting and lowering of the supporting plate 203.
  • the insert molding block 10 is configured to be assembled or separated from the molding support block 20 while the lifting and lowering is performed by the guide block (not shown).
  • the runner plate 30 is formed in the heating block 104 provided between the first and second upper fixing plates 101 and 102, which are the fixed side mold part 100, to the insert molding block 10.
  • the insert molding block 10 is maintained in a connected state.
  • the runner plate 30 is separated from the insert molding block 10 when the injection molded products c1, c1 ', c2, c2', c3, c3 'and c4 are taken out.
  • the puller 31 and the flow path 32 are formed, as well as a plurality of runner lock pins 33.
  • the resin flowing through the sprue 31 and the flow path 32 is used for injection molding the products c1, c1 ', c2, c2', c3, c3 ', and c4 by the heating block 104. After heating to maintain a constant temperature, it is injected into the molding groove 11 of the insert molding block 10 through the flow path in the runner lock pin 33.
  • the runner lock pin 33 is configured to penetrate the second upper fixing plate 102 and penetrate the stripper plate 40, and the length of the runner lock pin 33 is provided in the insert molding block 10. Corresponding to the forming groove 11 is formed to be the same or different.
  • the stripper plate 40 guides the resin supplied through the flow path 32 and the runner lock pin 33 of the runner plate 30 to the insert molding block 10, and the insert molding block 10.
  • the injection molded product (c1, c1 ', c2, c2', c3, c3 ', c4) from the lower end of the runner plate 10 is configured to be coupled to be configured to be lifted. Therefore, the stripper plate 40 has a plurality of runners 41 and a plurality of gate pins 42 formed thereon.
  • the stripper plate 40 is connected to the rod 51 of the operation unit 50 fixed to the second upper fixing plate 102, and configured to move up and down by the operation unit 50.
  • the gate pin 42 is inserted into the gate hole 12 in communication with the forming cavity (11).
  • the actuating section 50 is a hydraulic cylinder, but is not necessarily limited to this, and if the usual elements for raising and lowering the stripper plate 40 (e.g. motor type, ball cylinder, rack and pinion, etc.) Any one of the elements can be applied alternatively.
  • the gate pin 42 and / or the cavity gate G may be a known pin point gate, side gate, tunnel gate, direct gate, or fan gate. Any one of a fan gate, an edge gate, a ring gate, a flash gate, a tab gate, a diaphragm gate, and a cashew gate This is to be applied to the stripper plate 40 according to the characteristics of the product (C) to be injection molded.
  • the runner 41 has a through hole (not shown) through which the runner lock pin 33 can pass, similarly to a through hole formed in the stripper plate 40.
  • FIG. 1 the product (c1, c1 ', c2, c2') in the injection mold apparatus.
  • a movable side mold part 200 including a fixing plate 201, a leg part 202, and a backing plate 203 through an ejection guide pin 204 by driving the driving part to mold the parts c3, c3 'and c4. And elevate the mold to the stationary mold part 100.
  • the insert molding block 10 and the molding support block 20 having the molding grooves 11 formed between the stationary mold part 100 and the movable mold part 200 are in close contact with each other. Maintains the closed state for injection molding of the products (c1, c1 ', c2, c2', c3, c3 ', c4).
  • the molten resin is supplied through the sprue 31 of the runner plate 30 positioned in the fixed side mold part 100.
  • the runner plate 30 is installed in the heating block 104, so that the resin supplied through the sprue 31 of the runner plate 30 is runner lock pin of the multi-stage through the flow path 32 ( 33 is heated to a constant temperature when the branch supply is made, the heated resin is runner 41 and the gate pin 42 formed in the stripper plate 40, the cavity runner (R) and / or cavity gate ( It is injected into the forming grooves 11 formed in the insert molding block 10 through G).
  • the gate pin 42 and the cavity gate G are known pin point gates, side gates, tunnel gates, direct gates, and fan gates. Any one of a fan gate, an edge gate, a ring gate, a flash gate, a tab gate, a diaphragm gate, and a cashew gate In this case, the insert molding block 10 having the gate hole 12 corresponding to the gate pin 42 applied as described above is used.
  • the injection mold apparatus as described above, the runner 41 and the gate pin 42 of the stripper plate 40, and the products to be injection molded (c1, c1 ', c2, c2', By selectively injecting the molten resin simultaneously into the upper and lower ends of the forming groove 11 through the cavity runner R and / or the cavity gate G according to c3, c3 'and c4, they have a bonding relationship with each other.
  • Products (c1, c1 ', c2, c2', c3, c3 ', c4) consisting of the parts can be injection molded at the same time through one injection mold apparatus.
  • the fixing plate 201 is returned from the return movement of the ejection guide pin 204.
  • the insert molding block 10 and the molding support block 20 are first lowered.
  • the insert molding block 10 is separated from the stripper plate 40, the gate pin 42 of the stripper plate 40 is a gate hole formed in the insert molding block 10
  • the runner lock pin 33 extended from the runner plate 30 to the lower end of the insert molding block 10 in the runner plate 30 is separated from the cavity runner R.
  • a gate pin 42 separates the injection molded products (c1, c1 ', c2, c2', c3, c3 ', c4) into the molding groove 11 in the insert molding block 10, the insert molding block ( 10) will be held.
  • the products c1, c1 ', c2, c2', c3, c3 ', and c4 may be separated from the forming grooves 11 in the forming block 10 and placed on the forming support block 20.
  • the return spring 209 of the return pin 208 is compressed and the products c1, c1 ', c2, c2', c3, c3 ', c4.
  • the plate support plate 206 as well as the plate 205 and the pin 207 can be returned to their original position by the spring force of the return spring 209.
  • the injection mold apparatus of the present invention simultaneously improves the separation efficiency of the two-stage mold and the runner, while simultaneously satisfying the advantages of the two-stage mold and the three-stage mold, and simultaneously inject-molding products having a correlation with each other, the three-stage
  • mass-producing products through injection molding which is an advantage of molds
  • the cycle time of injection molding can be shortened and the production efficiency of products can be increased, and injection molding of fusion and advanced products is possible.

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

Abstract

La présente invention concerne un appareil de moulage par injection, et l'invention forme un orifice d'entrée capillaire à plusieurs étages dans un appareil de moulage à trois étages. En conséquence, les des produits présentant des relations mutuelles sont moulés par injection simultanément, et le temps de cycle pour le moulage par injection pendant la production en masse de produits est raccourci par le moulage par injection, ce qui constitue l'avantage d'un moule à trois étages, de manière à améliorer le rendement de production d'un produit, et l'efficacité de séparation d'un produit à partir d'un canal d'injection est élevée, ce qui constitue l'avantage d'un moule à deux étages. De ce fait les avantages des moules existants à deux étages et à trois étages sont simultanément obtenus de sorte à accroître la précision dimensionnelle d'un produit moulé par injection, cependant que les déchets de matériaux au cours du moulage par injection de produits sont réduits, la taille d'un canal d'injection peut être ajustée librement, et un assortiment de configurations d'orifice d'entrée peut être sélectionné. L'invention permet d'assurer le contrôle de la flexibilité et la reproductibilité de la qualité - c'est-à-dire que la différence de la qualité de produit entre un produit qui est moulé par injection en premier et le même produit qui est moulé par injection par la suite, peut être réduite. L'invention permet en outre de combiner et de mouler par injection des produits de haute qualité tout en assurant la réduction des coûts de fabrication et de production.
PCT/KR2016/007887 2015-07-30 2016-07-20 Appareil de moulage par injection WO2017018712A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0108234 2015-07-30
KR1020150108234A KR20170014590A (ko) 2015-07-30 2015-07-30 사출 금형장치

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WO2017018712A2 true WO2017018712A2 (fr) 2017-02-02
WO2017018712A3 WO2017018712A3 (fr) 2017-03-30

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JP (1) JP2017030358A (fr)
KR (1) KR20170014590A (fr)
WO (1) WO2017018712A2 (fr)

Cited By (4)

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CN109466025A (zh) * 2017-09-08 2019-03-15 上海未来伙伴机器人有限公司 一种注塑模具
CN114801060A (zh) * 2022-04-19 2022-07-29 安徽思科赛德电子科技有限公司 一种嵌件注塑端子的智能化拆卸设备
CN116526998A (zh) * 2023-05-22 2023-08-01 金华市创捷电子有限公司 一种石英晶体谐振器的制造设备及其制造工艺
WO2023143466A1 (fr) * 2022-01-30 2023-08-03 Smiss Technology Co., Ltd. Ensemble de chauffage, atomiseur, procédé de fabrication d'ensemble de chauffage et procédé d'assemblage d'atomiseur

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KR101774198B1 (ko) * 2017-04-17 2017-09-05 사단법인 캠틱종합기술원 밸브 노즐을 이용하여 인서트물의 양면 사출을 일체적으로 수행하는 핫러너 사출 장치

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Publication number Priority date Publication date Assignee Title
CN109466025A (zh) * 2017-09-08 2019-03-15 上海未来伙伴机器人有限公司 一种注塑模具
WO2023143466A1 (fr) * 2022-01-30 2023-08-03 Smiss Technology Co., Ltd. Ensemble de chauffage, atomiseur, procédé de fabrication d'ensemble de chauffage et procédé d'assemblage d'atomiseur
CN114801060A (zh) * 2022-04-19 2022-07-29 安徽思科赛德电子科技有限公司 一种嵌件注塑端子的智能化拆卸设备
CN116526998A (zh) * 2023-05-22 2023-08-01 金华市创捷电子有限公司 一种石英晶体谐振器的制造设备及其制造工艺
CN116526998B (zh) * 2023-05-22 2024-03-26 金华市创捷电子有限公司 一种石英晶体谐振器的制造设备及其制造工艺

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JP2017030358A (ja) 2017-02-09
WO2017018712A3 (fr) 2017-03-30
KR20170014590A (ko) 2017-02-08

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