CN105563765A - Injection mold suitable for complex plastic part and demolding method of injection mold - Google Patents
Injection mold suitable for complex plastic part and demolding method of injection mold Download PDFInfo
- Publication number
- CN105563765A CN105563765A CN201610105223.3A CN201610105223A CN105563765A CN 105563765 A CN105563765 A CN 105563765A CN 201610105223 A CN201610105223 A CN 201610105223A CN 105563765 A CN105563765 A CN 105563765A
- Authority
- CN
- China
- Prior art keywords
- plastic
- kicking block
- slanted kicking
- injection mold
- counterdie
- 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.)
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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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C2045/338—Mould parts with combined axial and transversal movements
Abstract
The invention discloses an injection mold suitable for a complex plastic part. The injection mold comprises an upper mold body and a lower mold body; the lower mold body comprises a cavity mold plate and is characterized in that a rear sliding block, side sliding blocks, inclined core pulling parts and inclined ejection blocks are arranged on the cavity mold plate; the upper surfaces of the inclined ejection blocks correspond to the bottom face of the plastic part, and the side faces of the inclined ejection blocks are arranged in a manner of being opposite to the inclined core pulling parts; protruding columns are further arranged on the side faces of the inclined ejection blocks; and the inclined core pulling parts, the inclined ejection blocks and the sliding blocks are driven by corresponding oil cylinders. According to the injection mold suitable for the complex plastic part, movable parts such as the rear sliding block, the side sliding blocks, the inclined core pulling parts and the inclined ejection blocks are arranged in a cavity of the lower mold body, and can be driven by the corresponding oil cylinders to do movement towards the rear side, the two sides, the downward inclined sides or the upward inclined sides; and the movable parts are arranged on a portion which cannot be subject to direct demolding, after the mold is opened, the movable parts are separated from the plastic part firstly, and then demolding is carried out.
Description
Technical field
The present invention relates to injection mold field, specifically a kind of injection mold and release method thereof being applicable to complicated plastic.
Background technology
Existing injection mold, comprise patrix (also claiming male model) and counterdie (also claiming master mold), counterdie has the core corresponding to plastic inner surface configuration, and counterdie has the die cavity corresponding to plastic external surface shape.After upper and lower mould matched moulds, core coordinates with die cavity, pours into a mould injection moulding liquid in space between, after injection moulding liquid cooling but, opens patrix, takes out plastic after the demoulding.For the plastic of structure relative complex, usually slide block can be set on patrix, after injection moulding completes and cools, first sliding slider, and then the demoulding.But for the plastic that structure is more complicated, as depth dimensions is very large, and have the isostructural plastic of local hole slot concurrently, the mould of existing structure just cannot realize a Shooting Technique.
Plastic as depicted in figs. 1 and 2, this plastic is a chair body, comprises seat support 10, handrail 11, arm supports 16 and the chair back 12.Described handrail 11, arm supports 16 and the chair back 12 is in curve form, the both sides flare of seat support 10, and be also provided with the rear foot joint pin 17 of a pair fixing rear chair pin and the forward foot in a step joint pin 13 of a pair fixing forward foot in a step in the corner of seat support 10, described rear foot joint pin 17 is connected with arm supports 16.Be provided with socket 14 in each joint pin 13 and 17, be also provided with pair of screws fixing hole 15 in the inner side of described socket 14.Chair pin is inserted in socket 14, and just chair pin and chair body can be fixed at screw fixed hole 15 place screw-in screw.Because the degree of depth of chair body is comparatively large, the curved-surface structure of many places is arranged at top, and both sides have seat support 10 to be inclined-plane, joint pin 13 and 17 is outward-dipping, and connecting cylinder 13 and 17 has circular socket 10 and screw fixed hole 15, for the plastic of this labyrinth, traditional dies cannot complete the demoulding.
Summary of the invention
The present invention is to solve the problems referred to above that prior art exists, aim to provide a kind of injection mold being applicable to complicated plastic.
For solving the problem, the present invention is by the following technical solutions: a kind of injection mold being applicable to complicated plastic, comprise upper die and lower die, described counterdie comprises die cavity template, it is characterized in that described die cavity template is provided with rear slider, side slide, tiltedly looses core and slanted kicking block; Further, the upper surface of described slanted kicking block is corresponding with the bottom surface of plastic, and side and described tiltedly the loosing core of slanted kicking block are oppositely disposed, and are also provided with projection in the side of slanted kicking block; Described tiltedly to loose core, slanted kicking block and each slide block be by corresponding hydraulic oil cylinder driving.
A kind of injection mold being applicable to complicated plastic of the present invention, in the die cavity of counterdie, be provided with rear slider, slide block, tiltedly loose core and the movable part such as slanted kicking block, these movable parts can be done backward under respective hydraulic oil cylinder driving, to both sides, move obliquely or obliquely.These movable parts are arranged on and on the position of direct demold, after die sinking, first movable part cannot be departed from from plastic, and then carry out the demoulding.Wherein, tiltedly loose core corresponding to the oblique slotted eye on plastic, the projection on slanted kicking block corresponds to the horizontal slotted eye on plastic.According to the complexity of processed plastic component structure, side slide can adopt one, two or more.Also can according to the symmetric case of processed plastic, side slide adopt a pair, two to or multipair.
The present invention also will provide a kind of release method of suitable complicated plastic, operates according to the following steps after it is characterized in that injection moulding:
1), mould die sinking;
2), rear slider slides backward under hydraulic oil cylinder driving, and side slide slides laterally under hydraulic oil cylinder driving;
3), tiltedly loose core and oliquely downward to move under hydraulic oil cylinder driving;
4), slanted kicking block moves obliquely upward under hydraulic oil cylinder driving, and the top of slanted kicking block is drawn close to center, and the projection on slanted kicking block departs from from plastic, and the top of slanted kicking block ejects plastic the die cavity of counterdie;
5) demoulding, takes out plastic.
The present invention to complicated shape particularly also with the plastic integral injection moulding of the hole slot structure of local, can enhance productivity, reduce technological process, reduce cost of manufacture, and be conducive to the improvement of product design and structure.
As improvement of the present invention, described side slide comprises a pair first side slides and a pair second side slides.This structure, is particularly suitable for the plastic of symmetrical shape.
As a further improvement on the present invention, described tiltedly to loose core and slanted kicking block is respectively 4, and one_to_one corresponding.This structure, makes the present invention be specially adapted to the injection molding of the chair body with chair pin connection socket and chair pin screw fixed hole.
Improve further as of the present invention, sprue gate is arranged on the bottom of counterdie again, and the sprue gate of such product, just on bottom surface, is not exposed, and thus the aesthetics of product is high.
Further improve as of the present invention, in patrix and/or counterdie, be also provided with cooling water pipeline.By water cooling in casting process, accelerate the cooling of injection moulding liquid, further high efficiency can be carried, and guarantee mould not by high temperature failure.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 is a kind of structural representation of plastic chair body.
Fig. 2 is the structural representation bottom a kind of plastic chair body.
Fig. 3 is the structural representation of injection mold of the present invention.
Fig. 4 is the structural representation of the patrix of injection mold of the present invention.
Fig. 5 is the structural representation of the counterdie of injection mold of the present invention, and what show in figure is original state after die sinking.
Fig. 6 is the state diagram of counterdie of the present invention after slide block skids off.
Fig. 7 is that counterdie of the present invention is tiltedly loosing core the state diagram after oliquely downward moving.
Fig. 8 is the state diagram of counterdie of the present invention after lifter ejection.
Detailed description of the invention
See figures.1.and.2, in the embodiment of the present invention, product to be processed is the plastic chair body of chair.This plastic is an overall structure, comprises seat support 10, handrail 11, arm supports 16 and the chair back 12.Described handrail 11, arm supports 16 and the chair back 12 is in curve form, the both sides flare of seat support 10, and be also provided with the cylindrical rear foot joint pin 17 of a pair fixing rear chair pin and the cylindrical forward foot in a step joint pin 13 of a pair fixing forward foot in a step in the corner of seat support 10, described rear foot joint pin 17 is connected with arm supports 16.Be provided with circular socket 14 in each joint pin 13 and 17, be also provided with a pair circular screw fixed hole 15 in the inner side of described socket 14.
With reference to Fig. 3, a kind of injection mold being applicable to complicated plastic of the present invention, comprises patrix 17 and counterdie 18.
With reference to Fig. 4, described patrix 17 has the core 26 corresponding to plastic inner surface, and patrix 17 inside is provided with cooling water pipeline, and antetheca is provided with intake-outlet 19.
With reference to Fig. 5, described counterdie comprises mould pin compound plate 23, mould pin 22 and die cavity template 9.Described die cavity template 9 is provided with a rear slider 1, a pair first side slide 3 corresponding with the outer surface of rear foot joint pin 17, tiltedly loose core 8 and four slanted kicking blocks 7 that a pair second side slide 6, four corresponding with the outer surface of forward foot in a step joint pin 17 is corresponding with the socket 14 of front and back pin joint pin 13,17; Further, the upper surface of each slanted kicking block is corresponding with the bottom surface of seat support 10, and the side of each slanted kicking block is corresponding with the outer surface of described front and back pin joint pin 13,17, is also provided with a pair projection 25 corresponding with the screw fixed hole 15 in socket 14 in the side of slanted kicking block; Described tiltedly loose core 8, slanted kicking block 7 and each slide block be by corresponding hydraulic oil cylinder driving.
Sprue gate 21 is arranged on the bottom of counterdie 18.The sprue gate of such product, just on bottom surface, is not exposed, and thus the aesthetics of product is high.
Also be provided with cooling water pipeline in counterdie 18, the antetheca of counterdie 18 is provided with the intake-outlet 24 of cooling water pipeline.
A kind of injection mold being applicable to complicated plastic of the present invention, operates after injection moulding in the following order:
1), mould die sinking.
2), oil cylinder 1 drives rear slider 2 to slide backward, and two oil cylinders 4 drive two the first side slides 3 to two Slideslips respectively, and two oil cylinders 5 drive two the second side slides 6 to two Slideslips, as shown in Figure 6.
3), 4 oil cylinders (tiltedly loosing core below 8, not showing in figure) drive 4 tiltedly to loose core respectively and 8 oliquely downward to move, as shown in Figure 7.
4), 4 oil cylinders (below slanted kicking block, not showing in figure) drive 4 slanted kicking blocks 7 to move obliquely upward.In moving process, the top of slanted kicking block 7 is drawn close to center, and the projection 25 on slanted kicking block 4 departs from from plastic, and product is ejected the die cavity 20 of counterdie, as shown in Figure 8.
5) demoulding, takes out plastic.
It is understood that above-described embodiment is just to explanation of the present invention, instead of limitation of the present invention, any innovation and creation do not exceeded in spirit of the present invention, all fall within protection scope of the present invention.
Claims (8)
1. one kind is applicable to the injection mold of complicated plastic, comprise patrix (17) and counterdie (18), described counterdie comprises die cavity template (9), it is characterized in that described die cavity template (9) is provided with rear slider (1), side slide, tiltedly looses core (8) and slanted kicking block (7); And, the upper surface of described slanted kicking block (7) is corresponding with the bottom surface of plastic, side and described tiltedly loose core (8) of slanted kicking block (7) are oppositely disposed, and are also provided with projection (25) in the side of slanted kicking block (7); Described tiltedly loose core (8), slanted kicking block (7) and each slide block are by corresponding hydraulic oil cylinder driving.
2. a kind of injection mold being applicable to complicated plastic as claimed in claim 1, is characterized in that described side slide comprises a pair first side slides (3) and a pair second side slides (6).
3. a kind of injection mold being applicable to complicated plastic as claimed in claim 1, is characterized in that described tiltedly to loose core (8) and slanted kicking block (7) is respectively 4, and one_to_one corresponding.
4. a kind of injection mold being applicable to complicated plastic as claimed in claim 1, is characterized in that sprue gate (21) is arranged on the bottom of counterdie (18).
5., as a kind of injection mold that be applicable to complicated plastic of claim 1-4 as described in any one, it is characterized in that also being provided with cooling water pipeline in described patrix (17) and/or counterdie (18).
6. a release method for suitable complicated plastic, operates after it is characterized in that injection moulding according to the following steps:
1), mould die sinking;
2), rear slider (1) slides backward under hydraulic oil cylinder driving, and side slide slides laterally under hydraulic oil cylinder driving;
3), tiltedly loose core (8) oliquely downward move under hydraulic oil cylinder driving;
4), slanted kicking block (7) moves obliquely upward under hydraulic oil cylinder driving, and the top of slanted kicking block is drawn close to center, and the projection on slanted kicking block departs from from plastic, and the top of slanted kicking block ejects plastic the die cavity of counterdie;
5) demoulding, takes out plastic.
7. the release method of a kind of suitable complicated plastic as claimed in claim 6, is characterized in that described side slide comprises a pair first side slides (3) and a pair second side slides (6).
8. the release method of a kind of suitable complicated plastic as claimed in claims 6 or 7, is characterized in that described tiltedly to loose core (8) and slanted kicking block (7) is respectively 4, and one_to_one corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610105223.3A CN105563765A (en) | 2016-02-25 | 2016-02-25 | Injection mold suitable for complex plastic part and demolding method of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610105223.3A CN105563765A (en) | 2016-02-25 | 2016-02-25 | Injection mold suitable for complex plastic part and demolding method of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105563765A true CN105563765A (en) | 2016-05-11 |
Family
ID=55874665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610105223.3A Pending CN105563765A (en) | 2016-02-25 | 2016-02-25 | Injection mold suitable for complex plastic part and demolding method of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105563765A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501329A (en) * | 2018-05-04 | 2018-09-07 | 台州市黄岩雷丰模具有限公司 | A kind of European chair frame of integrated injection molding and its injection mold |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139523A (en) * | 2010-12-16 | 2011-08-03 | 常州华威亚克模具有限公司 | Floating core shrinkage and composite inclined ejecting core-pulling mould structure |
| CN202264364U (en) * | 2011-09-16 | 2012-06-06 | 浙江星威办公家具制造有限公司 | Combined angle lifting demolding mechanism for plastic chair molds |
| CN103223713A (en) * | 2013-05-07 | 2013-07-31 | 星威国际家居有限公司 | Interchangeable multipurpose injection mould for processing plastic chairs |
| CN103737807A (en) * | 2013-12-26 | 2014-04-23 | 揭阳市格润工业设计有限公司 | Novel plastic chair mold and application method of same |
| CN203994577U (en) * | 2014-07-22 | 2014-12-10 | 星威国际家居有限公司 | Plastics leisure seat support mold releasability ejecting mechanism |
| CN104589603A (en) * | 2015-02-09 | 2015-05-06 | 浙江黄岩中和塑料模具厂 | Ejection mechanism and mold adopting ejection mechanism |
| CN205380843U (en) * | 2016-02-25 | 2016-07-13 | 浙江森川家具有限公司 | Be suitable for complicacy to mould injection mold of piece |
-
2016
- 2016-02-25 CN CN201610105223.3A patent/CN105563765A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139523A (en) * | 2010-12-16 | 2011-08-03 | 常州华威亚克模具有限公司 | Floating core shrinkage and composite inclined ejecting core-pulling mould structure |
| CN202264364U (en) * | 2011-09-16 | 2012-06-06 | 浙江星威办公家具制造有限公司 | Combined angle lifting demolding mechanism for plastic chair molds |
| CN103223713A (en) * | 2013-05-07 | 2013-07-31 | 星威国际家居有限公司 | Interchangeable multipurpose injection mould for processing plastic chairs |
| CN103737807A (en) * | 2013-12-26 | 2014-04-23 | 揭阳市格润工业设计有限公司 | Novel plastic chair mold and application method of same |
| CN203994577U (en) * | 2014-07-22 | 2014-12-10 | 星威国际家居有限公司 | Plastics leisure seat support mold releasability ejecting mechanism |
| CN104589603A (en) * | 2015-02-09 | 2015-05-06 | 浙江黄岩中和塑料模具厂 | Ejection mechanism and mold adopting ejection mechanism |
| CN205380843U (en) * | 2016-02-25 | 2016-07-13 | 浙江森川家具有限公司 | Be suitable for complicacy to mould injection mold of piece |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501329A (en) * | 2018-05-04 | 2018-09-07 | 台州市黄岩雷丰模具有限公司 | A kind of European chair frame of integrated injection molding and its injection mold |
| CN108501329B (en) * | 2018-05-04 | 2023-09-08 | 浙江雷丰模具股份有限公司 | European style backrest chair frame formed by integral injection molding and injection mold thereof |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |