CN105058694B - 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
- CN105058694B CN105058694B CN201510428539.1A CN201510428539A CN105058694B CN 105058694 B CN105058694 B CN 105058694B CN 201510428539 A CN201510428539 A CN 201510428539A CN 105058694 B CN105058694 B CN 105058694B
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- Prior art keywords
- pull bar
- lower mould
- curved
- intracavity
- insert
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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
-
- 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 the intracavity switching mechanism that a kind of monotype intracavity realizes double color injection.
Background technology
Plastic has the advantages that low cost, plasticity are strong, in present the articles for daily use relative to metal, stone material, timber
In, plastic is widely used.
In prior art, many plastics adopt double-shot moulding, and two kinds of plastics of different qualities are injected by twice
Technological forming is a plastic.Double-shot moulding technology (i.e. multi-component Injection Molding technology) is exactly will be double-colored/extra quality
Or polychrome/many material while or being expelled to die cavity and obtaining required product in order.By this kind of technology using it is two or more not
The same same product of material production, is utilized respectively the different performance of various materials or color, meets different use requirements.The skill
Art can effectively improve production efficiency and quality of item and reduce material cost, have than more typical application：Using different colours and
Toy made by hardened material or handle for tool, toothbrush, consumer electronics etc.；Also including the molded of auto parts, such as automobile
Upper some functors --- the part with illumination functions, the function part of soft/yingcai, shock damping part, sealing member and some frictions
Part etc..
Common double-shot moulding method is to be exchanged with each other cavity positions come complete by folding mould twice in two die cavities
Into the double injection of a molding cycle but unstable with the product quality of the method production, long the production cycle is inefficient.And
And, existing special double-shot moulding machine cost intensive, interchangeability are poor, 2-3 times of even more high of usually normal injection machine,
It is unfavorable for the needs of actual production.
The content of the invention
The purpose of the present invention is to overcome weak point of the prior art, there is provided one kind linking is good, it is ensured that product
Form accuracy, reduces the fraction defective of product, and the monotype intracavity that improve production efficiency and reduce cost realizes double color injection
Intracavity switching mechanism.
The purpose of the present invention is achieved through the following technical solutions：
A kind of monotype intracavity realizes the intracavity switching mechanism of double color injection, described including the upper die and lower die for cooperating
The bottom of upper mould is inlaid with mould mold insert, and lower mould mold insert is inlaid with the top of the lower mould, and the bottom of the lower mould mold insert is provided with
Lower mould movable insert, the bottom of the lower mould movable insert is connected with for driving lower mould movable insert in the mould on under
On the direction of mould die joint relatively upward or the slide block type moving component that moves down.
Specifically, the slide block type moving component include being arranged on inclined-plane stiff sheet on lower mould, T-shaped block, curved pull bar and
Pull bar drive mechanism, the inclined-plane stiff sheet is fixed on the bottom of lower mould movable insert and is arranged on curved pull bar and inlays with the activity of lower mould
Between part, the curved pull bar is provided with the curved indentations with inclined-plane stiff sheet lower surface shape Corresponding matching, and the pull bar drives
Mechanism is connected with curved pull bar, and the T-shaped block includes slide section and the T-shaped boss portion being fixedly connected with lower mould, the slide section
It is integral type with T-shaped boss portion, curved pull bar offers chute, and the slide section is away from one end of T-shaped boss portion through cunning
Groove is connected with the bottom of lower mould movable insert, and the T-shaped boss portion is being provided with curved pull bar with the curved pull bar place of being slidably matched
The inclined-plane of lower thrust is produced when moving relative to T-shaped boss portion.
Specifically, the pull bar drive mechanism includes hydraulic-driven part, take-up housing, and the hydraulic-driven part connects with take-up housing
Connect, institute's take-up housing is provided with T-shaped link slot, one end of the curved pull bar is provided with T-shaped head corresponding with the matching of T-shaped link slot.
In order to ensure running precision, the pull bar pressure for limiting curved pull bar downward shift play is additionally provided with the lower mould
Piece.
The present invention has compared to existing technology advantages below and beneficial effect：
The present invention by slide block type moving component drive under mould movable insert move upwards when, now under matched moulds state
The cavity for injecting sizing material for the first time is constituted, after completing first time injecting glue, pressurize, cooling, slide block type moving component drives lower mould to live
Dynamic mold insert is moved downward, and so as to form the cavity of second injection, after second cavity composition is finished, carries out second note
Double color injection is completed after glue, pressurize, cooling, double injection linking is good, it is ensured that the form accuracy of product, double injection can
Carry out in the case of not open in die joint, reduce the fraction defective of product, improve production efficiency and reduce cost.
Description of the drawings
Fig. 1 is the structure assembling effect figure of the present invention；
Fig. 2 is exploded perspective view of the invention；
Fig. 3 is the top view of the present invention；
Fig. 4 is sectional view of the present invention in first time injection die cavity；
Fig. 5 is the partial enlarged drawing of M parts in Fig. 4；
Fig. 6 is the sectional view for injecting lower mould movable insert and curved pull bar for the first time；
Fig. 7 is the sectional view of mould movable insert and curved pull bar under second injection；
Fig. 8 is sectional view of the present invention in second injection die cavity；
Fig. 9 is the partial enlarged drawing of N section in Fig. 8.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited
In this.
Embodiment
As shown in Figures 1 and 2, monotype intracavity realizes the fixed limit of each critical piece of the intracavity switching mechanism of double color injection
State description processed：Upper mould mold insert 1 inlays the bottom for being fixed on mould, and lower mould mold insert 2 inlays the top for being fixed on lower mould；Lower mould is lived
Dynamic mold insert 3 is limited in lower mould by a similar tabletting being oriented to, and can be upper and lower on the direction of die joint
A mobile segment distance；Inclined-plane stiff sheet 4 is fixed on the bottom of lower mould movable insert 3 with T-shaped block 5；Curved pull bar 6 by with take-up housing
8 are connected becomes slide block group, and slide block group is driven by hydraulic-driven part 9；Pull bar tabletting 7 is limited in curved pull bar 6 on lower mould, sliding
Block tabletting 10 is limited in take-up housing 8 on lower mould, and curved pull bar 6, take-up housing 8 are made in the restriction of pull bar tabletting 7, slide block tabletting 10
It is horizontally slidable with；Hydraulic-driven part 9 is fixed on lower mould.
In the present embodiment, the inclined-plane stiff sheet 4, T-shaped block 5, curved pull bar 6 and pull bar drive mechanism form slide block type activity
Component, wherein, the pull bar drive mechanism is hydraulically operated part 9, take-up housing 8 and constitutes, the hydraulic-driven part 9 and take-up housing
8 connections, institute's take-up housing 8 is provided with T-shaped link slot, and one end of the curved pull bar 6 is provided with and the T-shaped link slot corresponding T-shaped of matching
Head.By T-shaped head and the connected mode of T-shaped link slot, can assemble easily and fast.
Used as a kind of embodiment, the inclined-plane stiff sheet 4 is fixed on the bottom of lower mould movable insert 3 and is arranged on curved drawing
Between bar 6 and lower mould movable insert 3, the curved pull bar 6 is provided with the curved surface with the lower surface shape Corresponding matching of inclined-plane stiff sheet 4
Groove 601, the pull bar drive mechanism is connected with curved pull bar 6, and the T-shaped block 5 includes slide section 501 and fix with lower mould to connect
The T-shaped boss portion 502 for connecing, the slide section 501 is integral type with T-shaped boss portion 502, and curved pull bar 6 offers chute 11, institute
State being connected with the bottom of lower mould movable insert 3 through chute 11 away from one end of T-shaped boss portion 502 of slide section 501, the T
Shape boss portion 502 with the place of being slidably matched of curved pull bar 6 be provided with when curved pull bar 6 is moved relative to T-shaped boss portion 502 produce under
The inclined-plane of thrust.
Part of the intracavity switching mechanism in molding cycle that double color injection is realized in single-cavity is illustrated with reference to Fig. 3-Fig. 9
Course of action：When for the first time injection starts, the right side of direction shown in the Fig. 1 of hydraulic-driven part 9 pulls, and drives curved pull bar 6 to move right
Dynamic, the inclined-plane on the curved indentations 601 of curved pull bar 6 is produced to the inclined-plane of inclined-plane stiff sheet 4 and above pushes away effect, forces the lower mould of lower mould
Move in movable insert 3, inclined-plane stiff sheet 4, T-shaped block 5, when curved pull bar 6 slides into the plane and inclined-plane stiff sheet 4 of curved pull bar 6
When plane is fitted completely, slide block type moving component stop slide (now the lower mould movable insert 3 of 6 pairs, curved pull bar, inclined-plane stiff sheet 4,
T-shaped block 5 plays a supportive role)；Mould and lower mould matched moulds are gone up afterwards, now then complete the composition for injecting die cavity for the first time；Start first
Secondary injecting glue, pressurize, cooling；When first time, injection was completed, hydraulic-driven part 9 is promoted to the left, and curved pull bar 6 is moved to the left, bent
The inclined-plane of shape pull bar 6 pushes away effect under producing to the inclined-plane of T-shaped block 5, forces lower mould movable insert 3 to move down, when curved pull bar 6 to the left
Slide when stopping, lower mould movable insert 3 stops movement, this fits (lower mould the bottom surface of mould movable insert 3 at present with low mold frame baseplane
Lower mould movable insert 3 is played a supportive role)；Then complete the composition of second injection die cavity, start second injection, pressurize, cold
But；Upper die and lower die die sinking afterwards, ejecting product completes the one-shot forming cycle.
Compared with prior art, in the case of identical die cavity number, mould volume is less, it is possible to decrease forming bench makes for the present invention
Use cost.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention not by above-described embodiment
Limit, other any spirit without departing from the present invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (2)
1. a kind of monotype intracavity realizes the intracavity switching mechanism of double color injection, including the upper die and lower die for cooperating, it is described on
The bottom of mould is inlaid with mould mold insert, and lower mould mold insert is inlaid with the top of the lower mould, it is characterised in that the lower mould mold insert
Bottom is provided with lower mould movable insert, the bottom of the lower mould movable insert be connected with for drive lower mould movable insert perpendicular to
On upper mould and the direction of lower mould die joint relatively upward or the slide block type moving component that moves down, the slide block type moving component
Including the inclined-plane stiff sheet, T-shaped block, curved pull bar and the pull bar drive mechanism that are arranged on lower mould, the inclined-plane stiff sheet is fixed on down
The bottom of mould movable insert and it is arranged between curved pull bar and lower mould movable insert, the curved pull bar is provided with hard with inclined-plane
The curved indentations of piece lower surface shape Corresponding matching, the pull bar drive mechanism is connected with curved pull bar, and the T-shaped block includes sliding
Block portion and the T-shaped boss portion being fixedly connected with lower mould, the slide section is integral type with T-shaped boss portion, and curved pull bar is offered
Chute, the slide section being connected with the bottom of lower mould movable insert through chute away from one end of T-shaped boss portion, the T-shaped
Boss portion with the curved pull bar place of being slidably matched be provided with when curved pull bar is moved relative to T-shaped boss portion produce lower thrust it is oblique
Face, is additionally provided with the pull bar tabletting for limiting curved pull bar downward shift play on the lower mould, pull bar tabletting is by curved pull bar
It is limited on lower mould, slide block tabletting 10 is limited in take-up housing on lower mould, curved pull bar, take-up housing are in pull bar tabletting, slide block pressure
It is horizontally slidable under the restriction effect of piece.
2. monotype intracavity according to claim 1 realizes the intracavity switching mechanism of double color injection, it is characterised in that the drawing
Bar drive mechanism includes hydraulic-driven part, take-up housing, and the hydraulic-driven part is connected with take-up housing, and the take-up housing is provided with T-shaped
Link slot, one end of the curved pull bar is provided with T-shaped head corresponding with the matching of T-shaped link slot.
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 CN105058694A (en) | 2015-11-18 |
| CN105058694B true 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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| Country | Link |
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| CN (1) | CN105058694B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696289B (en) * | 2019-10-08 | 2024-06-28 | 宁海县现代模具有限公司 | Switching mechanism of double-color die |
| 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 |
| CN115107223B (en) * | 2022-06-24 | 2024-07-23 | 森骏卓越精密智造(深圳)有限公司 | In-mold cavity conversion device and bicolor forming die |
Family Cites Families (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 |
| JP6071804B2 (en) * | 2013-08-26 | 2017-02-01 | 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 |
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- 2015-07-20 CN CN201510428539.1A patent/CN105058694B/en active Active
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| CN105058694A (en) | 2015-11-18 |
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