CN105058694A - Intracavity switching mechanism for achieving two-color injection in single cavity - Google Patents
Intracavity switching mechanism for achieving two-color injection in single cavity Download PDFInfo
- Publication number
- CN105058694A CN105058694A CN201510428539.1A CN201510428539A CN105058694A CN 105058694 A CN105058694 A CN 105058694A CN 201510428539 A CN201510428539 A CN 201510428539A CN 105058694 A CN105058694 A CN 105058694A
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- China
- Prior art keywords
- pull bar
- counterdie
- insert
- curved
- shaped
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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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/162—The materials being injected at different moulding stations using means, e.g. mould parts, for transferring an injected part between moulding stations
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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
- B29C45/2602—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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/162—The materials being injected at different moulding stations using means, e.g. mould parts, for transferring an injected part between moulding stations
- B29C2045/1623—The materials being injected at different moulding stations using means, e.g. mould parts, for transferring an injected part between moulding stations transfer by a slidable element forming a part of both cavities
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an intracavity switching mechanism for achieving two-color injection in a single cavity. The intracavity switching mechanism comprises an upper mold and a lower mold. The upper mold and the lower mold match. An upper mold insert is inlaid in the bottom of the upper mold, and a lower mold insert is inlaid in the top of the lower mold. A lower mold movable insert is arranged at the bottom of the lower mold insert. The bottom of the lower mold movable insert is connected with a sliding block type movable assembly used for driving the lower mold movable insert to move relatively upwards or downwards in the direction perpendicular to the parting face of the upper mold and the lower mold. Connection of injection of two times is good; the shape precision of products is guaranteed; the injection of two times can be conducted under the condition of not opening the parting face; the reject ratio of the products is lowered; production efficiency is improved, and cost is reduced.
Description
Technical field
The present invention relates to mould applications, specifically refer to realize double color injection in a kind of single-cavity chamber in switching mechanism.
Background technology
Plastic products are relative to metal, stone material, timber, and have the advantages such as cost is low, plasticity is strong, in present daily necessities, plastic products are widely used.
In prior art, a lot of plastic products adopt double-shot moulding, and two of different qualities kinds of plastics are shaped to plastic products by twice injection technique.Double-shot moulding technology (i.e. multi-component Injection Molding technology) is exactly by double-colored/extra quality or polychrome/many material simultaneously or be expelled to die cavity in order and obtain required goods.Utilize the same product of two or more different material productions by this kind of technology, the performance utilizing various material different respectively or color, meet different instructions for uses.This technology can effectively be enhanced productivity and quality of item reduces material cost, and relatively more typical application has: the toy utilizing different colours and hardened material to make or handle for tool, toothbrush, consumer electronics etc.; Also comprise the molded of auto parts, as some functor on automobile---the part of band illumination functions, the function part of soft/yingcai, shock damping part, seal and some friction members etc.
Common double-shot moulding method mutually exchanges by twice folding mould the double injection that cavity positions has carried out a molding cycle at two die cavities, but unstable by the product quality of the method production, and the production cycle is long, and efficiency is not high.And existing special double-shot moulding machine cost intensive, interchangeability are poor, normally the 2-3 of common injection machine is doubly even higher, is unfavorable for the needs of actual production.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, provide a kind of and be connected good, ensure that the form accuracy of product, reduce the fraction defective of product, improve production efficiency and switching mechanism in the chamber realizing double color injection in the single-cavity reducing cost.
The object of the invention is to be achieved through the following technical solutions:
Switching mechanism in the chamber realizing double color injection in a kind of single-cavity; comprise the upper die and lower die cooperatively interacted; the bottom of described patrix is inlaid with patrix mold insert; the top of described counterdie is inlaid with counterdie mold insert; the bottom of described counterdie mold insert is provided with counterdie movable insert, and the bottom of described counterdie movable insert is connected with for driving counterdie movable insert perpendicular to the patrix slide block type movable component that move up or down relative on the direction of counterdie die joint.
Concrete, described slide block type movable component comprises the inclined-plane stiff sheet be arranged on counterdie, T-shaped block, curved pull bar and pull bar driving mechanism, described inclined-plane stiff sheet is fixed on the bottom of counterdie movable insert and is arranged between curved pull bar and counterdie movable insert, described curved pull bar is provided with the curved indentations with stiff sheet lower surface, inclined-plane shape Corresponding matching, described pull bar driving mechanism is connected with curved pull bar, the T-shaped boss portion that described T-shaped block comprises slide section and is fixedly connected with counterdie, described slide section and T-shaped boss portion are integral type, curved pull bar offers chute, described slide section is connected with the bottom of counterdie movable insert away from the chute that passes of one end of T-shaped boss portion, described T-shaped boss portion with the curved pull bar place of being slidably matched be provided with produce when curved pull bar moves relative to T-shaped boss portion under the inclined-plane of thrust.
Concrete, described pull bar driving mechanism comprises hydraulic-driven part, take-up housing, and described hydraulic-driven part is connected with take-up housing, and institute's take-up housing has T-shaped link slot, and one end of described curved pull bar is provided with mates corresponding T-shaped head with T-shaped link slot.
In order to ensure running precision, described counterdie is also provided with the pull bar compressing tablet for limiting curved pull bar downward shift play.
The present invention has the following advantages and beneficial effect compared to existing technology:
When the present invention is by driving counterdie movable insert to move upward at slide block type movable component, under matched moulds state, now form the cavity of first time injection sizing material, complete first time injecting glue, pressurize, after cooling, slide block type movable component drives counterdie movable insert to move downward, thus form the cavity of second time injection, after second time cavity composition, carry out second time injecting glue, pressurize, namely double color injection is completed after cooling, double injection is connected good, ensure that the form accuracy of product, double injection can carry out when die joint is not opened, reduce the fraction defective of product, improve production efficiency and reduce cost.
Accompanying drawing explanation
Fig. 1 is structure assembling effect figure of the present invention;
Fig. 2 is for being exploded perspective view of the present invention;
Fig. 3 is top view of the present invention;
Fig. 4 is the sectional view of the present invention when first time injection die cavity;
Fig. 5 is the partial enlarged drawing of M part in Fig. 4;
Fig. 6 is sectional view first time injecting counterdie movable insert and curved pull bar;
Fig. 7 is the sectional view of second time injection counterdie movable insert and curved pull bar;
Fig. 8 is the sectional view of the present invention when second time injection die cavity;
Fig. 9 is the partial enlarged drawing of N part in Fig. 8.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figures 1 and 2, in the chamber realizing double color injection in single-cavity, the fixing restriction state of each critical piece of switching mechanism describes: patrix mold insert 1 inlays the bottom being fixed on patrix, and counterdie mold insert 2 inlays the top being fixed on counterdie; Counterdie movable insert 3 is limited in counterdie by the compressing tablet of a similar guiding, and can move up and down a segment distance perpendicular on the direction of die joint; Inclined-plane stiff sheet 4 and T-shaped block 5 are fixed on the bottom of counterdie movable insert 3; Curved pull bar 6 becomes slide block group by being connected with take-up housing 8, and slide block group is driven by hydraulic-driven part 9; Curved pull bar 6 is limited on counterdie by pull bar compressing tablet 7, and take-up housing 8 is limited on counterdie by slide block compressing tablet 10, and curved pull bar 6, take-up housing 8 can horizontal slips under the restriction of pull bar compressing tablet 7, slide block compressing tablet 10; Hydraulic-driven part 9 is fixed on counterdie.
In the present embodiment, described inclined-plane stiff sheet 4, T-shaped block 5, curved pull bar 6 and pull bar driving mechanism form slide block type movable component, wherein, namely described pull bar driving mechanism is made up of hydraulic-driven part 9, take-up housing 8, described hydraulic-driven part 9 is connected with take-up housing 8, institute's take-up housing 8 has T-shaped link slot, and one end of described curved pull bar 6 is provided with mates corresponding T-shaped head with T-shaped link slot.By the connected mode of T-shaped head and T-shaped link slot, can assemble easily and fast.
As a kind of embodiment, described inclined-plane stiff sheet 4 is fixed on the bottom of counterdie movable insert 3 and is arranged between curved pull bar 6 and counterdie movable insert 3, described curved pull bar 6 is provided with the curved indentations 10 with inclined-plane stiff sheet 4 lower surface shape Corresponding matching, described pull bar driving mechanism is connected with curved pull bar 6, the T-shaped boss portion 502 that described T-shaped block 5 comprises slide section 501 and is fixedly connected with counterdie, described slide section 501 is integral type with T-shaped boss portion 502, curved pull bar 6 offers chute 11, described slide section 501 is connected with the bottom of counterdie movable insert 3 away from the chute 11 that passes of one end of T-shaped boss portion 502, described T-shaped boss portion 502 with curved pull bar 6 place of being slidably matched be provided with produce when curved pull bar 6 moves relative to T-shaped boss portion 502 under the inclined-plane of thrust.
Below in conjunction with switching mechanism in the chamber realizing double color injection in Fig. 3-Fig. 9 instruction book die cavity in the component actuation process of molding cycle: when first time, injection started, pull on the right side of direction shown in hydraulic-driven part 9 Fig. 1, curved pull bar 6 is driven to move right, inclined-plane on the curved indentations 10 of curved pull bar 6 produces the inclined-plane of inclined-plane stiff sheet 4 and pushes away effect, force the counterdie movable insert 3 of counterdie, inclined-plane stiff sheet 4, T-shaped block 5 moves, when the plane of plane and inclined-plane stiff sheet 4 that curved pull bar 6 slides into curved pull bar 6 is fitted completely, slide block type movable component stops (the now curved pull bar 6 pairs of counterdie movable inserts 3 that slide, inclined-plane stiff sheet 4, T-shaped block 5 plays a supportive role), patrix and counterdie matched moulds afterwards, now then completes the composition of first time injection die cavity, start first time injecting glue, pressurize, cooling, when first time has injected, hydraulic-driven part 9 promotes left, curved pull bar 6 is moved to the left, the inclined-plane of curved pull bar 6 pushes away effect under the inclined-plane generation of T-shaped block 5, counterdie movable insert 3 is forced to move down, when curved pull bar 6 slides stopping left, counterdie movable insert 3 stops mobile, and now (counterdie plays a supportive role to counterdie movable insert 3) is fitted in counterdie movable insert 3 bottom surface and low mold frame baseplane, then complete the composition of second time injection die cavity, start second time injection, pressurize, cooling, upper die and lower die die sinking afterwards, ejecting product, completes the one-shot forming cycle.
Compared with prior art, in identical die cavity number situation, mould volume is less, can reduce forming bench use cost in the present invention.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (4)
1. switching mechanism in the chamber realizing double color injection in a single-cavity; comprise the upper die and lower die cooperatively interacted; the bottom of described patrix is inlaid with patrix mold insert; the top of described counterdie is inlaid with counterdie mold insert; it is characterized in that; the bottom of described counterdie mold insert is provided with counterdie movable insert, and the bottom of described counterdie movable insert is connected with for driving counterdie movable insert perpendicular to the patrix slide block type movable component that move up or down relative on the direction of counterdie die joint.
2. switching mechanism in the chamber realizing double color injection in single-cavity according to claim 1, it is characterized in that, described slide block type movable component comprises the inclined-plane stiff sheet be arranged on counterdie, T-shaped block, curved pull bar and pull bar driving mechanism, described inclined-plane stiff sheet is fixed on the bottom of counterdie movable insert and is arranged between curved pull bar and counterdie movable insert, described curved pull bar is provided with the curved indentations with stiff sheet lower surface, inclined-plane shape Corresponding matching, described pull bar driving mechanism is connected with curved pull bar, the T-shaped boss portion that described T-shaped block comprises slide section and is fixedly connected with counterdie, described slide section and T-shaped boss portion are integral type, curved pull bar offers chute, described slide section is connected with the bottom of counterdie movable insert away from the chute that passes of one end of T-shaped boss portion, described T-shaped boss portion with the curved pull bar place of being slidably matched be provided with produce when curved pull bar moves relative to T-shaped boss portion under the inclined-plane of thrust.
3. switching mechanism in the chamber realizing double color injection in single-cavity according to claim 2, it is characterized in that, described pull bar driving mechanism comprises hydraulic-driven part, take-up housing, described hydraulic-driven part is connected with take-up housing, institute's take-up housing has T-shaped link slot, and one end of described curved pull bar is provided with mates corresponding T-shaped head with T-shaped link slot.
4. switching mechanism in the chamber realizing double color injection in the single-cavity according to Claims 2 or 3, is characterized in that, described counterdie being also provided with the pull bar compressing tablet for limiting curved pull bar downward shift play.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428539.1A CN105058694B (en) | 2015-07-20 | 2015-07-20 | Intracavity switching mechanism for achieving two-color injection in single cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428539.1A CN105058694B (en) | 2015-07-20 | 2015-07-20 | Intracavity switching mechanism for achieving two-color injection in single cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105058694A true CN105058694A (en) | 2015-11-18 |
| CN105058694B CN105058694B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510428539.1A Active CN105058694B (en) | 2015-07-20 | 2015-07-20 | Intracavity switching mechanism for achieving two-color injection in single cavity |
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| CN (1) | CN105058694B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696289A (en) * | 2019-10-08 | 2020-01-17 | 宁海县现代模具有限公司 | Switching mechanism of double-color mold |
| CN114261064A (en) * | 2021-12-31 | 2022-04-01 | 江苏启钊精密模具有限公司 | Injection mold and injection method for forming plane color matching product |
| CN115107223A (en) * | 2022-06-24 | 2022-09-27 | 森骏卓越精密智造(深圳)有限公司 | Die inner cavity conversion device and double-color forming die |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202186012U (en) * | 2011-06-30 | 2012-04-11 | 浙江模具厂 | Integrated two-color injection mold |
| JP2015042463A (en) * | 2013-08-26 | 2015-03-05 | 小島プレス工業株式会社 | Injection mold |
| CN204471728U (en) * | 2015-01-04 | 2015-07-15 | 深圳市安高模具有限公司 | A kind of non-rotating double-color mold |
| CN204773274U (en) * | 2015-07-20 | 2015-11-18 | 东江模具（深圳）有限公司 | Intracavity switching mechanism of double -colored injection is realized to monotype intracavity |
-
2015
- 2015-07-20 CN CN201510428539.1A patent/CN105058694B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202186012U (en) * | 2011-06-30 | 2012-04-11 | 浙江模具厂 | Integrated two-color injection mold |
| JP2015042463A (en) * | 2013-08-26 | 2015-03-05 | 小島プレス工業株式会社 | Injection mold |
| CN204471728U (en) * | 2015-01-04 | 2015-07-15 | 深圳市安高模具有限公司 | A kind of non-rotating double-color mold |
| CN204773274U (en) * | 2015-07-20 | 2015-11-18 | 东江模具（深圳）有限公司 | Intracavity switching mechanism of double -colored injection is realized to monotype intracavity |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696289A (en) * | 2019-10-08 | 2020-01-17 | 宁海县现代模具有限公司 | Switching mechanism of double-color mold |
| CN114261064A (en) * | 2021-12-31 | 2022-04-01 | 江苏启钊精密模具有限公司 | Injection mold and injection method for forming plane color matching product |
| CN115107223A (en) * | 2022-06-24 | 2022-09-27 | 森骏卓越精密智造(深圳)有限公司 | Die inner cavity conversion device and double-color forming die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105058694B (en) | 2017-04-12 |
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