CN103707455A - Medical EVA inner bottle cap injection molding technology and die thereof - Google Patents
Medical EVA inner bottle cap injection molding technology and die thereof Download PDFInfo
- Publication number
- CN103707455A CN103707455A CN201210481986.XA CN201210481986A CN103707455A CN 103707455 A CN103707455 A CN 103707455A CN 201210481986 A CN201210481986 A CN 201210481986A CN 103707455 A CN103707455 A CN 103707455A
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- plate
- guide pillar
- injection
- bottle cap
- core
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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
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the plastic molding or connecting field, especially relates to a technology for making an integrated body through injection molding, and an apparatus thereof, and concretely relates to a medical EVA inner bottle cap injection molding technology and a die thereof. The injection molding technology is designed against the characteristics of the complex structure of an EVA inner bottle cover, high health standards of a medical apparatus, and high requirements of injection molding technologies and dies thereof, and the injection molding technology comprises the steps of die locking injection, separation of an aggregate from a sprue bush, main (branch) channel opening, separation of a plastic member from a cavity, and plastic member push. The injection molding die developed in the invention comprises a fixed die holder, a cavity plate, a member pushing plate, a core, a core fixing plate, a supporting plate, the sprue bush, a movable die holder, a push plate, a cooling water channel, a groove possessed guide pillar and a keyway possessed guide pillar. The adoption of point sprue injection in the invention is benefit for the die filling flow of an EVA melt; the selection of forced demolding based on the good elasticity of the EVA avoids the inner side core extraction and saves the die cost; and 32-cavity high-quality massive production of one die is realized.
Description
Technical field
The invention belongs to moulding or the connection area of plastics, especially use injection mo(u)lding to make technique and the device of one whole, relate to bottle cap injection molding process and mould in a kind of medical EVA.
Background technology
At present, a lot of infusion solutions liquids still adopt glass bottle packaging; The aluminum cap packaging that traditional glass bottle adopts natural rubber plug and is difficult for opening, there are many shortcomings, particularly natural rubber plug is easily aging, when poor air-tightness, acupuncture, easily fall bits, and additive in plug loses particulate matter molten and that buffings splits away off when medicine is taken out in puncture in liquid, can block microcirculation in human body, also can cause that thrombocytolysis is hemorrhage.Thereby the bottle cap that numerous producers adopt vial and ethene-vinyl acetate copolymer (EVA) to make is packed as medicine.
Chinese patent CN 201275857Y discloses a kind of injection mold for anti-theft bottle cap, adopt outside module and inner side module to depart from step by step mode, solved the breakage problem of knockout course tie point, make mould axially complete demoulding work, module forms and greatly dwindles, and has reduced the collision between die size and module; Chinese patent CN 201784138U discloses a kind of injection mould with inverted bottle covers, has solved the effectively problem of the demoulding of drinking bottle cap, and yield rate is high, economize on resources.Above-mentioned patented technology all adopts traditional injection moulding moulding process, and plastic Product Precision is lower, is difficult to be applied to the injection mo(u)lding of medical EVA bottle cap.
Infusion solutions glass cap consists of interior bottle cap and interior bottle cap, complex structure, and the sanitary standard of medical equipment is high, to injection molding process and mould, requires high.The present invention, in conjunction with interior Bottle cap structure feature, designs bottle cap injection molding process and mould equipment in EVA.
Summary of the invention
The object of the invention is to: for Bottle cap structure feature in medical EVA, propose bottle cap injection molding process and mould in a kind of medical EVA, realize the high-quality a large amount in 1 mould 32 chambeies and produce.
The object of the invention is to be achieved through the following technical solutions.
Bottle cap injection molding process in medical EVA of the present invention, comprises that matched moulds is injected, solidifying material is deviate from sprue bush, master's (propping up) runner is opened, plastic is deviate from die cavity, plastic is released; Technical process is as follows:
(1) matched moulds injection: mould matched moulds, injector by the viscous state EVA melt after plasticizing through injection, pressurize, cooled and solidified moulding;
(2) solidifying material is deviate from sprue bush: solidifying material disconnects with injection nozzle, and from sprue bush, separation is deviate from;
(3) leading (propping up) runner opens: for solidifying material deviates to fall to provide space;
(4) plastic is deviate from die cavity: by pulling force, the spot pouring mouth of solidifying material and plastic cut-out is separated, solidifying material is deviate from from the separation of master's (propping up) runner;
(5) plastic is released: plastic forces to depart from core, the collection of automatically falling.
Bottle cap injection molding process in medical EVA of the present invention, according to Bottle cap structure in EVA and material characteristics, adopts spot pouring mouth injection, is beneficial to the filling flow of EVA melt; Based on the good elasticity of EVA, select forced stripper mechanism, avoided interior side core-pulling, saved die cost.
The present invention also provides bottle cap injection in a kind of medical EVA, comprises cover half seat, cavity plate, push piece plate, core, core fixing plate, support plate, sprue bush, dynamic model seat, push pedal, cooling water channel, with groove guide pillar, band keyway guide pillar; Described sprue bush is built in described cover half seat; On described support plate, with counterbore, be equipped with described with groove guide pillar, described cover half seat, cavity plate, push piece plate and described with groove guide pillar matched in clearance, and can move along described with groove guide pillar; Described band keyway guide pillar is assemblied in cover half seat counterbore, described cavity plate, push piece plate, core fixing plate, support plate, dynamic model seat and described band keyway guide pillar matched in clearance, and can move along described band keyway guide pillar; Maximal clearance between described cavity plate and described cover half seat should guarantee that solidifying material can free falling; The final gap of described push piece plate and described cavity plate should guarantee that plastic departs from described core can free falling; Described core is fixed by described core fixing plate and described support plate, and described push piece plate, under push pedal drives, can, along the translation of core axis, carry out forced stripper mechanism.
In described medical EVA, bottle cap injection also comprises centring ring, spring, sunk screw, for connecting described sprue bush and cover half seat; Described sprue bush hollow, with injection nozzle contact portion be arc surface, described spring is oppressed described sprue bush and described injection nozzle close contact, while guaranteeing injection moulding without overflowing.
In described medical EVA, bottle cap injection also comprises alignment pin, spring, holding screw, described holding screw is packaged in described cavity plate by described alignment pin, described spring is oppressed described alignment pin, with described with groove guide pillar close contact, on described with groove guide pillar, have a groove, described with groove guide pillar drives described cavity plate to move to right by groove and described alignment pin.
In described medical EVA, bottle cap injection also comprises distance screws, and described distance screws screws in described cavity plate, and inserts in the described keyway with keyway guide pillar, limits the maximal clearance between described cavity plate and described cover half seat.
In described medical EVA, bottle cap injection also comprises ejector pin retaining plate, push rod, holding screw, described holding screw connects as one ejector pin retaining plate and push pedal, push pedal is fixed on by described ejector pin retaining plate in described push rod one end, and the other end drives push piece plate, realizes forced stripper mechanism.
Bottle cap injection in described medical EVA, the travel range of described push pedal is limited by described dynamic model seat.
In described medical EVA, bottle cap injection also comprises cooling water channel and soft copper plug, and described core is inserted in described soft copper plug one end, and the other end gos deep into cooling water channel, the heat of described core is conducted to cooling water and lower the temperature.
In described medical EVA, bottle cap injection adopts 1 mould 32 chambeies.
The invention has the beneficial effects as follows: adopt the spot pouring mouth injection of EVA melt filling flow, guaranteed plastic good looking appearance, be beneficial to the filling flow of EVA melt; Forced demoulding mechanism is simple and reliable, has avoided interior side core-pulling, has saved die cost; Die joint selection and design of Cooling System are reasonable, have improved finished product rate; In mould, extensively adopt standard component, saved research and development manufacturing expense, shortened life cycle of the product, adopted 1 mould 32 chambeies, improved production efficiency.Through production practices, prove, the mould assembling action of opening of this mould meets designing requirement completely, and plastic part quality is stable, is suitable for producing in enormous quantities.
Accompanying drawing explanation
Fig. 1 is mould matched moulds injection process chart of the present invention;
Fig. 2 is that mold cavity of the present invention distributes and cooling schematic diagram;
Fig. 3 is that the solidifying material of mould of the present invention is deviate from sprue bush process chart;
Fig. 4 is that mould master of the present invention (propping up) runner is opened process chart;
Fig. 5 is that mould plastic of the present invention is deviate from die cavity process chart;
Fig. 6 is that mould plastic of the present invention is released process chart;
The product cutaway view of Fig. 7 for adopting the present invention to produce;
The product top cross-sectional view of Fig. 8 for adopting the present invention to produce.
Wherein: 1-cover half seat, 2-distance screws, 3-push piece plate, 4-core fixing plate, 5-support plate, the solidifying material of 6-, 7-sunk screw, 8-centring ring; 9-sprue bush, 10-spring, 11-plastic, 12-soft copper plug, 13-alignment pin, 14-spring, 15-holding screw, 16-dynamic model seat, 17-with groove guide pillar, 18-ejector pin retaining plate, 19-push rod, 20-holding screw, 21-push pedal, 22-cooling water channel, 23-core, 24-cavity plate, 25-band keyway guide pillar, 26-injection moulding die cavity, 27-branch flow passage, 28-sprue.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
A bottle cap injection in medical EVA, referring to accompanying drawing 1, sprue bush 9 is built in cover half seat 1; Centring ring 8 is fixed on cover half seat 1 by sunk screw 7, and injection nozzle is carried out injection moulding through centring ring 8 interstitial holes; Sprue bush 11 hollows, contact with arc surface with described injection nozzle, spring 10 compressing sprue bush 9 and described injection nozzle close contacts, while guaranteeing injection moulding without overflowing; Centring ring 8 can prevent that sprue bush 9 from exposing and dropping out under the effect of spring 8.On support plate 5, with counterbore, be equipped with groove guide pillar 17, cover half seat 1, cavity plate 24, push piece plate 3 and with groove guide pillar 17 matched in clearance, and can move along with groove guide pillar 17; Holding screw 15 is packaged in cavity plate 24 by alignment pin 13, and spring 14, by alignment pin 13 compressings, with groove guide pillar 17 close contacts, has a groove on groove guide pillar 17, by described groove and alignment pin 13, drives cavity plate 24 to move to right; The determining positions of with groove guide pillar 17 the above groove the maximal clearance between cavity plate 24 and cover half seat 1, described gap should guarantee that solidifying material 6 can free falling.Band keyway guide pillar 25 is assemblied in cover half seat 1 counterbore, cavity plate 24, push piece plate 3, core fixing plate 4, support plate 5, dynamic model seat 16 and band keyway guide pillar 25 matched in clearance, and can move along band keyway guide pillar 25; Distance screws 2 screws in cavity plate 24, and inserts in the keyway with keyway guide pillar 25, relies on the maximal clearance between described keyway length restriction cavity plate 24 and cover half seat 1.Core 23 is fixing by core fixing plate 4 and support plate 5, holding screw 20 connects as one ejector pin retaining plate 18 and push pedal 21, push pedal 21 is fixed on by ejector pin retaining plate 18 in push rod 19 one end, and the other end drives push piece plate 3 along core 23 axis translations, realizes forced stripper mechanism; Push piece plate 3 should guarantee that with the final gap of cavity plate 24 plastic 11 departs from core 23, and can free falling.There is flange in dynamic model seat 16 outsides, for limiting the travel range of push pedal 21.Each core 23 all inserts soft copper plug 12, and the other end of soft copper plug 12 gos deep into cooling water channel 22, utilizes the characteristic that soft copper heat transfer coefficient is high that core 23 heats are conducted to cooling water channel 22, by circulating water, is lowered the temperature.Referring to accompanying drawing 2, the present invention adopts 1 mould 32 cavity configurations, moulds liquid and is injected to each die cavity 26 through sprue 28, branch flow passage 27, and production efficiency is higher; Have 2 cooling water channels 22, lay respectively at the outside inner side of die cavity and the outside of inner side die cavity, can effective cooling die cavity, can guarantee that again running gate system temperature does not reduce; Article 2, the entrance and exit of cooling water channel converges, and is connected to form circulation cooling circuit with mould outer flexible tube.
Bottle cap injection molding process process in a kind of medical EVA, referring to accompanying drawing 1, matched moulds injection: male and female mold matched moulds, injection nozzle overcomes the active force of spring 10, make sprue bush 9 and cover half seat 1, cavity plate 24, cavity plate 3, core 23 form confined space, the viscous state EVA melt after plasticizing is through injection, pressurize, cooled and solidified moulding.
Referring to accompanying drawing 3, solidifying material 6 is deviate from sprue bush 9: injection nozzle moves to right, and under the effect of spring 10, sprue bush 9 moves to right to centring ring 8, and injection nozzle disconnects with solidifying material 6.
Referring to accompanying drawing 4, main (propping up) runner is opened: push pedal 21 moves to right, outboard flanges by dynamic model seat 16 drives dynamic model seat 16, ejector pin retaining plate 18, push rod 19, support plate 5, core fixing plate 4, push piece plate 3, cavity plate 24, core 23, soft copper plug 12, cooling water channel 22 to move to right, deviate to coagulate material 6, the recycling of automatically falling of solidifying material 6.
Referring to accompanying drawing 5, plastic 11 is deviate from die cavity: push pedal 21 continues to move to right, the right-hand member keyway that distance screws 2 arrives with keyway guide pillar 25, cavity plate 24 power that is hampered stops moving to right, alignment pin 13 exits the groove of with groove guide pillar 17, and ejector pin retaining plate 18, push rod 19, support plate 5, core fixing plate 4, push piece plate 3, core 23, soft copper plug 12, cooling water channel 22 continue to move to right, the contraction during due to melt cooling, plastic 11 packs tightly on core 23, under it drives, deviates from cavity plate 24.
Referring to accompanying drawing 6, deviate from plastic 11: push pedal 21 moves to left, drive ejector pin retaining plate 18, push rod 19, the relative core 23 of push piece plate 3 to move to left, make plastic 11 force to depart from core 23.
So far mould has completed an injection cycle, and the product cutaway view that employing the present invention produces is referring to accompanying drawing 7, and product top cross-sectional view is referring to accompanying drawing 8.Dynamic model seat 16 moves to left subsequently, injection nozzle moves to right reset, carries out next injection cycle.
Claims (8)
1. a bottle cap injection molding process in medical EVA, is characterized in that: comprise that matched moulds is injected, solidifying material is deviate from sprue bush, master's (propping up) runner is opened, plastic is deviate from die cavity, plastic is released; Technical process is as follows:
(1) matched moulds injection: mould matched moulds, injector by the viscous state EVA melt after plasticizing through injection, pressurize, cooled and solidified moulding;
(2) solidifying material is deviate from sprue bush: solidifying material disconnects with injection nozzle, and from sprue bush, separation is deviate from;
(3) leading (propping up) runner opens: for solidifying material deviates to fall to provide space;
(4) plastic is deviate from die cavity: by pulling force, the spot pouring mouth of solidifying material and plastic cut-out is separated, solidifying material is deviate from from the separation of master's (propping up) runner;
(5) plastic is released: plastic forces to depart from core, the collection of automatically falling.
2. a bottle cap injection in medical EVA, comprises cover half seat, cavity plate, push piece plate, core, core fixing plate, support plate, sprue bush, dynamic model seat, push pedal, cooling water channel, with groove guide pillar, band keyway guide pillar; It is characterized in that: described sprue bush is built in described cover half seat; On described support plate, with counterbore, be equipped with described with groove guide pillar, described cover half seat, cavity plate, push piece plate and described with groove guide pillar matched in clearance, and can move along described with groove guide pillar; Described band keyway guide pillar is assemblied in cover half seat counterbore, described cavity plate, push piece plate, core fixing plate, support plate, dynamic model seat and described band keyway guide pillar matched in clearance, and can move along described band keyway guide pillar; Maximal clearance between described cavity plate and described cover half seat should guarantee that solidifying material can free falling; The final gap of described push piece plate and described cavity plate should guarantee that plastic departs from described core can free falling; Described core is fixed by described core fixing plate and described support plate, and described push piece plate, under push pedal drives, can, along the translation of core axis, carry out forced stripper mechanism.
3. bottle cap injection in medical EVA according to claim 2, is characterized in that: also comprise centring ring, spring, sunk screw, for connecting described sprue bush and cover half seat; Described sprue bush hollow, with injection nozzle contact portion be arc surface, described spring is oppressed described sprue bush and described injection nozzle close contact, while guaranteeing injection moulding without overflowing.
4. bottle cap injection in medical EVA according to claim 2, it is characterized in that: also comprise alignment pin, spring, holding screw, described holding screw is packaged in described cavity plate by described alignment pin, described spring is oppressed described alignment pin, with described with groove guide pillar close contact, on described with groove guide pillar, have a groove, described with groove guide pillar drives described cavity plate to move to right by groove and described alignment pin.
5. bottle cap injection in medical EVA according to claim 2, it is characterized in that: also comprise distance screws, described distance screws screws in described cavity plate, and inserts in the described keyway with keyway guide pillar, limits the maximal clearance between described cavity plate and described cover half seat.
6. bottle cap injection in medical EVA according to claim 2, it is characterized in that: also comprise ejector pin retaining plate, push rod, holding screw, described holding screw connects as one ejector pin retaining plate and push pedal, push pedal is fixed on by described ejector pin retaining plate in described push rod one end, the other end drives push piece plate, realizes forced stripper mechanism.
7. bottle cap injection in medical EVA according to claim 2, is characterized in that: the travel range of described push pedal is limited by described dynamic model seat.
8. bottle cap injection in medical EVA according to claim 2, it is characterized in that: also comprise cooling water channel and soft copper plug, described core is inserted in described soft copper plug one end, and the other end gos deep into cooling water channel, the heat of described core is conducted to cooling water and lower the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481986.XA CN103707455B (en) | 2012-11-25 | 2012-11-25 | Bottle cap injection molding process and mould in a kind of medical EVA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481986.XA CN103707455B (en) | 2012-11-25 | 2012-11-25 | Bottle cap injection molding process and mould in a kind of medical EVA |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103707455A true CN103707455A (en) | 2014-04-09 |
| CN103707455B CN103707455B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210481986.XA Expired - Fee Related CN103707455B (en) | 2012-11-25 | 2012-11-25 | Bottle cap injection molding process and mould in a kind of medical EVA |
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| Country | Link |
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| CN (1) | CN103707455B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527748A (en) * | 2018-04-21 | 2018-09-14 | 台州市黄岩达意隆模具有限公司 | capping machine |
| CN110256061A (en) * | 2019-08-04 | 2019-09-20 | 娄底市远程精密结构陶瓷有限责任公司 | A kind of biology speciality ceramics and preparation method thereof |
| CN111037856A (en) * | 2019-12-24 | 2020-04-21 | 安徽鼎泓包装有限公司 | Double injection point conjoined bottle cap and mould |
| CN113524394A (en) * | 2020-07-03 | 2021-10-22 | 青岛理工大学 | Multi-station automatic hot-press casting device |
| CN114770879A (en) * | 2022-06-22 | 2022-07-22 | 张家港市天江精密模具制造有限公司 | Plastic cover-shaped workpiece processing injection mold capable of rapidly preventing damage and demolding |
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| JPH02264660A (en) * | 1989-04-04 | 1990-10-29 | Kooshin Kk | Nipple for nursing bottle and production thereof |
| CN2770934Y (en) * | 2005-03-29 | 2006-04-12 | 重庆工学院 | Injection mould capable of automatically removing needle-point gate condensed material |
| CN102019396A (en) * | 2009-09-14 | 2011-04-20 | 牟维军 | Ejection mechanism with movable sprue bush and pulling board |
| CN102653123A (en) * | 2012-05-07 | 2012-09-05 | 常州工学院 | Point pouring gate injection mould capable of automatically pushing out condensed materials |
| CN203004201U (en) * | 2012-11-25 | 2013-06-19 | 安徽工程大学 | Injection moulding die for medical EVA (ethylene vinyl-acetate) inner bottle cap |
-
2012
- 2012-11-25 CN CN201210481986.XA patent/CN103707455B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02264660A (en) * | 1989-04-04 | 1990-10-29 | Kooshin Kk | Nipple for nursing bottle and production thereof |
| CN2770934Y (en) * | 2005-03-29 | 2006-04-12 | 重庆工学院 | Injection mould capable of automatically removing needle-point gate condensed material |
| CN102019396A (en) * | 2009-09-14 | 2011-04-20 | 牟维军 | Ejection mechanism with movable sprue bush and pulling board |
| CN102653123A (en) * | 2012-05-07 | 2012-09-05 | 常州工学院 | Point pouring gate injection mould capable of automatically pushing out condensed materials |
| CN203004201U (en) * | 2012-11-25 | 2013-06-19 | 安徽工程大学 | Injection moulding die for medical EVA (ethylene vinyl-acetate) inner bottle cap |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527748A (en) * | 2018-04-21 | 2018-09-14 | 台州市黄岩达意隆模具有限公司 | capping machine |
| CN108527748B (en) * | 2018-04-21 | 2023-11-28 | 台州市黄岩得奕隆模具有限公司 | capping machine |
| CN110256061A (en) * | 2019-08-04 | 2019-09-20 | 娄底市远程精密结构陶瓷有限责任公司 | A kind of biology speciality ceramics and preparation method thereof |
| CN111037856A (en) * | 2019-12-24 | 2020-04-21 | 安徽鼎泓包装有限公司 | Double injection point conjoined bottle cap and mould |
| CN113524394A (en) * | 2020-07-03 | 2021-10-22 | 青岛理工大学 | Multi-station automatic hot-press casting device |
| CN114770879A (en) * | 2022-06-22 | 2022-07-22 | 张家港市天江精密模具制造有限公司 | Plastic cover-shaped workpiece processing injection mold capable of rapidly preventing damage and demolding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103707455B (en) | 2016-02-03 |
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