CN104290286A - Ejection mechanism for injector core rod molding mold - Google Patents
Ejection mechanism for injector core rod molding mold Download PDFInfo
- Publication number
- CN104290286A CN104290286A CN201410487090.1A CN201410487090A CN104290286A CN 104290286 A CN104290286 A CN 104290286A CN 201410487090 A CN201410487090 A CN 201410487090A CN 104290286 A CN104290286 A CN 104290286A
- Authority
- CN
- China
- Prior art keywords
- plate
- mold
- thimble
- product
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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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
- B29C2045/324—Linked ejection means
Landscapes
- 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 provides an ejection mechanism for an injector core rod molding mold. The ejection mechanism comprises a cavity plate and a mold core plate, wherein at least one cavity is formed between the cavity plate and the mold core plate; rear mold thimbles are arranged on the mold core plate; the positions of the rear mold thimble correspond to the positions of the cavities; the cavity plate is provided with front mold thimbles; the positions of the front mold thimbles correspond to the positions of the cavities; and the upper ends of the front mold thimbles are connected with a thimble plate. When the ejection mechanism for the injector core rod molding mold is used for de-molding, a core rod can be pushed outwards through the front mold thimbles so that the condition that a product is stuck with the cavities does not occur; and then, the core rod is ejected outwards by the rear mold thimbles so that the product can be de-molded. According to the ejection mechanism for the injector core rod molding mold, the product can be effectively prevented from being stuck with the cavities; and meanwhile, the rear mold thimbles can be conveniently ejected outwards, the quality of the core rod product can be effectively improved, the working efficiency is improved and the production cost of enterprises is reduced.
Description
Technical field
The present invention relates to a kind of injector core bar moulding mould, particularly a kind of ejecting mechanism be used on injector core bar moulding mould.
Background technology
Syringe is a kind of very common medicine equipment in people's daily life, and it is primarily of syringe, core bar, plug, needle stand, protective sleeve totally four part compositions, and syringe, core bar, needle stand, protective sleeve are all adopt the mode of injection mo(u)lding to produce by mould.When using mould to produce core bar, the demoulding of product mainly relies on having ejected of rear mold thimble, adopt and have following defect in this way: 1, molding cycle too fast, cooling when not reaching product be easy to glue front mould, thus cause pressing mold situation to occur; 2, in order to prevent sticky front mould, often back-off is increased in the dynamic model part of product; 3, owing to product there being back-off, product has material cave and drops out when the demoulding, thus affects product quality; 4, owing to product there being back-off, product by bad for product top, thus can affect product quality when the demoulding.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of structure simple, be convenient to product stripping, the ejecting mechanism for injector core bar moulding mould that simultaneously can effectively improve the quality of products.
For achieving the above object and other relevant objects, the invention provides a kind of ejecting mechanism for injector core bar moulding mould, comprise cavity plate and core plate, at least one die cavity is formed between described cavity plate and described core plate, described core plate is provided with rear mold thimble, and the position of described rear mold thimble is corresponding with described cavity positions, and described cavity plate is provided with front mould thimble, described front mould thimble is corresponding with described cavity positions, and the upper end of described front mould thimble is connected with ejector retainner plate.
Preferably, 32 die cavities are formed between described cavity plate and described core plate.
Preferably, described ejector retainner plate is connected with cylinder.
As mentioned above, ejecting mechanism for injector core bar moulding mould of the present invention, there is following beneficial effect: this ejecting mechanism for injector core bar moulding mould except arranging rear mold thimble in core plate, also front mould thimble is also set in cavity plate, carrying out in the demoulding like this, can be first extrapolated by core bar by front mould thimble, the situation of product and die cavity adhesion would not be there is like this, and then by rear mold thimble, core bar is outwards ejected, so just can complete product stripping.After tested, after increasing front mould thimble, the problems such as existing cycle, cooling, material cave, apical ring are resolved one by one, and molding cycle raising simultaneously more than 30%, product percent of pass are well ensured.For 20ML core bar, the situation compacted under cycle not having front mould thimble is 12 seconds, and after adding front mould thimble, its molding cycle brings up to 8 seconds.The ejecting mechanism of this injector core bar moulding mould can effectively prevent product bonding with die cavity as can be seen here, rear mold thimble can be facilitated outwards to eject simultaneously, effectively can improve the quality of core bar product, increase work efficiency, and reduces enterprise's production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the enlarged diagram at A place in Fig. 1.
Fig. 3 is the structural representation of another embodiment of the present invention.
Element numbers explanation.
| 1 | Cavity plate |
| 2 | Die cavity |
| 3 | Front mould thimble |
| 4 | Core plate |
| 5 | Core |
| 6 | Rear mold thimble |
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Refer to Fig. 1,2.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, 2, the invention provides a kind of ejecting mechanism for injector core bar moulding mould, it comprises cavity plate 1 and core plate 4 two parts, forms die cavity 2 between cavity plate 1 and core plate 4, is also provided with the core 5 for making formed product in die cavity 2.Core plate 4 is provided with rear mold thimble 6, and rear mold thimble is connected with the push rod of injection machine, and the position of rear mold thimble 6 is corresponding with die cavity 2 position, and cavity plate 1 is provided with front mould thimble 3, and front mould thimble 3 is corresponding with the position of die cavity 2.Just product stripping can be realized by front mould thimble 3, rear mold thimble 6.
Front mould thimble 3 is positioned at the through hole of cavity plate 1, and the upper end of front mould thimble 3 is connected with ejector retainner plate, and ejector retainner plate is connected with cylinder, and cylinder can drive ejector retainner plate and front mould thimble 2 to move up and down.Ejector retainner plate is connected with cylinder, instead of adopts spring mechanism, can increase the mold use life-span like this.Ejector retainner plate moves down and drives front mould thimble 3 to move down, and product just can be separated with cavity plate 1 by such front mould thimble 3.The through hole holding front mould thimble 3 also can play the effect be vented die cavity, and such product and cover half 1 also not easily stick together.
After product is separated with cavity plate 1, the push rod by injection machine drives rear mold thimble 6 to move, and product is released by rear mold thimble 6 from die cavity 2.Use the mould of this ejecting mechanism without the need to arranging back-off, mould structure becomes simple, thus mold cavity number can increase greatly, as shown in Figure 3, is provided with 32 die cavities in this mould between cover half 1 and dynamic model 5, even more.Effectively can improve the production efficiency of product like this, reduce production cost.
This ejecting mechanism being used for injector core bar moulding mould except arranging except rear mold thimble 6 in core plate 5, also front mould thimble 3 is also set in cavity plate 1, carrying out in the demoulding like this, first by front mould thimble 3, core bar and cavity plate 1 can be separated, the situation of product and die cavity adhesion would not be there is like this, and then by rear mold thimble 6, core bar is outwards ejected, so just can complete product stripping.
This ejecting mechanism for injector core bar moulding mould except arranging rear mold thimble in core plate, also front mould thimble is also set in cavity plate, carrying out in the demoulding like this, can be first extrapolated by core bar forward by front mould thimble, the situation of product and die cavity adhesion would not be there is like this, and then by rear mold thimble, core bar is outwards ejected, so just can complete product stripping.After tested, after increasing front mould thimble, the problems such as existing cycle, cooling, material cave, apical ring are resolved one by one, and molding cycle raising simultaneously more than 30%, product percent of pass are well ensured.For 20ML core bar, the situation compacted under cycle not having front mould thimble is 12 seconds, and after adding front mould thimble, its molding cycle brings up to 8 seconds.The ejecting mechanism of this injector core bar moulding mould can effectively prevent product bonding with die cavity as can be seen here, rear mold thimble can be facilitated outwards to eject simultaneously, effectively can improve the quality of core bar product, increase work efficiency, and reduces enterprise's production cost.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (3)
1. the ejecting mechanism for injector core bar moulding mould, comprise cavity plate and core plate, at least one die cavity is formed between described cavity plate and described core plate, core is provided with in described die cavity, described core plate is provided with rear mold thimble, and the position of described rear mold thimble is corresponding with described cavity positions, it is characterized in that: described cavity plate is provided with front mould thimble, described front mould thimble is corresponding with described cavity positions, and the upper end of described front mould thimble is connected with ejector retainner plate.
2. the ejecting mechanism for injector core bar moulding mould according to claim 1, is characterized in that: form 32 die cavities between described cavity plate and described core plate.
3. the ejecting mechanism for injector core bar moulding mould according to claim 1, is characterized in that: described ejector retainner plate is connected with cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487090.1A CN104290286A (en) | 2014-09-22 | 2014-09-22 | Ejection mechanism for injector core rod molding mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487090.1A CN104290286A (en) | 2014-09-22 | 2014-09-22 | Ejection mechanism for injector core rod molding mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104290286A true CN104290286A (en) | 2015-01-21 |
Family
ID=52310351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410487090.1A Pending CN104290286A (en) | 2014-09-22 | 2014-09-22 | Ejection mechanism for injector core rod molding mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104290286A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0459322A (en) * | 1990-06-29 | 1992-02-26 | Seikosha Co Ltd | Injection mold device |
| CN201863329U (en) * | 2010-11-26 | 2011-06-15 | 中山市华志模具塑胶制品有限公司 | Plastic mould with secondary ejection structure |
| CN202764142U (en) * | 2012-09-14 | 2013-03-06 | 深圳市三和新电子科技有限公司 | Double-top die structure |
| CN204076708U (en) * | 2014-09-22 | 2015-01-07 | 苏州联开精密模具有限公司 | For the ejecting mechanism of injector core bar moulding mould |
-
2014
- 2014-09-22 CN CN201410487090.1A patent/CN104290286A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0459322A (en) * | 1990-06-29 | 1992-02-26 | Seikosha Co Ltd | Injection mold device |
| CN201863329U (en) * | 2010-11-26 | 2011-06-15 | 中山市华志模具塑胶制品有限公司 | Plastic mould with secondary ejection structure |
| CN202764142U (en) * | 2012-09-14 | 2013-03-06 | 深圳市三和新电子科技有限公司 | Double-top die structure |
| CN204076708U (en) * | 2014-09-22 | 2015-01-07 | 苏州联开精密模具有限公司 | For the ejecting mechanism of injector core bar moulding mould |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zeng Zhi Inventor after: Zhang Yangming Inventor before: Zeng Zhi |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CENG ZHI TO: CENG ZHI ZHANG YANGMING |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |
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| RJ01 | Rejection of invention patent application after publication |