CN106079297B - Compound demolding structure - Google Patents
Compound demolding structure Download PDFInfo
- Publication number
- CN106079297B CN106079297B CN201610599335.9A CN201610599335A CN106079297B CN 106079297 B CN106079297 B CN 106079297B CN 201610599335 A CN201610599335 A CN 201610599335A CN 106079297 B CN106079297 B CN 106079297B
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- Prior art keywords
- core
- compound
- interior
- outside
- demolding structure
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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
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- 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
- B29C45/401—Ejector pin constructions or mountings
-
- 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
- B29C2045/334—Mountings or guides therefor; Drives therefor several transversely movable mould parts driven by a single drive means
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The present invention discloses a kind of compound demolding structure, including outside core, interior core, pushing block and guide rod, outside core therein is the core of moulded products breach, interior core is the core of moulded products snap fit, outer core sleeve is on interior core top, outside core sidewall opening, pushing block is through outside core sidewall opening and is inserted into the groove of interior core side, core moves up and down relative to outside core in pushing block drive, interior core bottom is provided with guide runner, guide rod is provided with guide runner, the guide runner is made up of straight trough and helicla flute, interior core is moved up in stroke in guide groove makes under guide rod guiding, outside core, which is first layered to rotate afterwards, realizes product automatic demoulding, with rational in infrastructure, the advantages that efficiency high.
Description
Technical field
The present invention discloses a kind of compound demolding structure, belongs to technology of die manufacturing by International Patent Classification (IPC) (IPC) division
Field.
Background technology
Product with multiple snap fits or buckle, such as the coupler construction in Fig. 1 in product, each snap fit in circumferentially distributed,
Snap fit quantity can be 2,3,4 or more, and in injection moulding process, automatic demoulding is the above-mentioned similar products needs of production in industry
Solve the problems, such as.Fig. 1 and Fig. 2 is a kind of plastic ventilation valve union A, and material is PPSU, the chamber of a mould two, in each one of plastic both sides
Screw thread A1, bottom have four snap fit A2, it is desirable to which mould can produce automatically.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of rational in infrastructure, compound demolding structure for producing automatically.
To reach above-mentioned purpose, the present invention is achieved by the following technical solutions：
A kind of compound demolding structure, including outside core, interior core, pushing block and guide rod, outside core therein are moulded products
The core of breach, interior core are the core of moulded products snap fit, and outer core sleeve outside core sidewall opening, is pushed away on interior core top
Block through outside core sidewall opening and being inserted into the groove of interior core side, pushing block drive in core relative to outside core above and below
Mobile, interior core bottom is provided with guide runner, is provided with guide rod in guide runner, the guide runner is made up of straight trough and helicla flute, inner mold
Core moves up in stroke guide runner makes inside and outside core first be layered to rotate afterwards and realize product automatic demoulding under guide rod guiding.
Further, the outside core sidewall opening and axially extending along core, the groove of interior core is for arcuation groove and along interior
Core is circumferentially extended, and the circumferential width of arcuation groove is defined by the anglec of rotation for meeting article removal requirement.
Further, the outside core side wall is provided with least one opening, and pushing block is inserted into interior core side through corresponding opening
In the groove that face coordinates.
Further, 4, compound demolding structure according to claim 1, it is characterised in that：The interior core side wall is set
Have 1 or a guide runner more than 1 circle distribution, each guide runner be made up of straight trough and helicla flute and with a guide rod,
Guide runner is the guide barrel construction with gradient from interior core wall outer surface to inner surface, and the gradient of the guide runner is 10-
50 degree, preferably 30 degree.
Further, the lead angle of helicla flute is 30-70 degree, preferably 65 degree in the guide runner, and advantage is to be driven more
Relax, be smooth, avoiding self-locking.
Further, the inner mold in-core is provided with least one thimble to eject in product.
Further, the outside core coordinates with outside core fixed plate, and interior core bottom is provided with bottom plate, and guide rod is matched somebody with somebody with guide rod plate
Close, interior core is provided with sleeve between guide rod plate and bottom plate.
Further, compound demolding structure is arranged on lower mould, and lower mould coordinates with upper mould realizes that product is molded, and lower mould is provided with driving
The spring of pushing block action.
Further, be provided with die button between the lower mould and upper mould, die button includes upper button, lower button and middle slide fastener, upper button with
The connection of upper mould, lower button and middle slide fastener are connected with lower mould, and upper detain is connected with middle slide fastener so that upper and lower mould matched moulds, during die sinking in
Between slide fastener closed with lower snap fit and drive the template being connected and inside and outside core parting and deviate from product snap fit.
Further, the upper and lower mould is provided with two groups of compound demolding structures of two product injection die cavities and cooperation, and two is compound
The demoulding is realized in the interior core linkage of demolding structure.
The present invention passes through the coupler construction of the cooperation moulded products of interior external form, and during the demoulding, outside core is fixed, through outside core
Core in control, move up its first straight line, then spiral rotates, so that inside and outside core parting staggers, and then ejects system
Product realize automatic demoulding effect, have the advantages that rational in infrastructure, efficiency high.
Brief description of the drawings
Fig. 1 is a kind of plastic ventilation valve schematic diagram.
Fig. 2 is another schematic diagram of breather valve in Fig. 1.
Fig. 3 is matched moulds state diagram of the embodiment of the present invention.
Fig. 4 is that core of the embodiment of the present invention is layered wrong schematic diagram.
Fig. 5 is core of embodiment of the present invention rotation ejection schematic diagram.
Fig. 6 is schematic diagram of the embodiment of the present invention.
Fig. 7 is another schematic diagram of the embodiment of the present invention.
Fig. 8 is the present invention and upper and lower mould assembled sectional view.
Fig. 9 is that die combination combines another sectional view to the present invention up and down.
Figure 10 die button cooperation schematic diagrams of the present invention.
Figure 11 is inventive die overall diagram.
Figure 12 is mould schematic diagram under the present invention.
Figure 13 is side view of the embodiment of the present invention.
Figure 14 is A-A sectional views in Figure 13.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
Embodiment：Refer to Fig. 1 to Figure 12, a kind of compound demolding structure, including outside core 1, interior core 2, pushing block 3 and lead
Bar 4, outside core 1 therein are the core of moulded products breach, and interior core 2 is the core of moulded products snap fit, and outside core 1 is enclosed on
The interior top of core 2, the sidewall opening of outside core 1, pushing block 3 is through the sidewall opening 101 of outside core 1 and is inserted into the recessed of interior core side
In groove 201, pushing block 3 drives interior core 2 to be moved up and down relative to outside core 1, and the interior bottom of core 2 is provided with guide runner 202, guide runner
Guide rod 4 is provided with 202, the guide runner 202 is made up of straight trough and helicla flute, and the lead angle of helicla flute is 30- in guide runner
70 degree, preferably 65 degree, advantage are to be driven more relax, be smooth, avoid self-locking.Interior core 2 moves up in stroke guide runner in guide rod
Inside and outside core is set first to be layered to rotate afterwards and realize product automatic demoulding under guiding.The sidewall opening 101 of outside core 1 of the present invention is along type
Core is axially extending, and the groove 201 of interior core 2 circumferentially extends for arcuation groove and along interior core, and the circumferential width of arcuation groove is to meet
The anglec of rotation of article removal requirement is defined.Outside core side wall is provided with one or more openings, in order to improve stability, outside core
1 sidewall symmetry is provided with opening, and two pushing blocks 3 are inserted into through corresponding opening in the groove 201 of the interior side of core 2 cooperation.This hair
The bright interior core side wall is provided with 1 guide runner or a plurality of guide runner more than 1, as shown in Figure 13,14, the interior side wall of core 2
Two guide runners are arranged with axis, each guide runner be made up of straight trough and helicla flute and with a guide rod, guide runner
From interior core wall outer surface to inner surface be with the guide barrel construction for making gradient, the gradient of the guide runner is that α angles are
10-50 degree, preferably 30 degree, the exterior notch of guide runner radial direction are more than inner tank mouths, and the guide rod being engaged is the work with α pyramid degree
With end.At least one thimble is provided with when assembling mould, in interior core 2 to eject in product, thimble can be one or two,
The example thimble quantity shown in Fig. 8 is two, and thimble 203,204 nested types are placed in interior core quill shaft intracavitary.Such as Fig. 6, figure
7, outside core 1 of the present invention coordinates with outside core fixed plate 14, and the interior bottom of core 2 is provided with bottom plate 5, and guide rod 4 coordinates with guide rod plate 6,
Interior core 2 is provided with sleeve 7 between guide rod plate and bottom plate.As shown in Fig. 8, Fig. 9, Figure 11, Figure 12, compound demolding structure is arranged on
Lower mould 8, lower mould 8 coordinates with upper mould 9 realizes that product is molded, and lower mould 8 is provided with the spring 801 of driving pushing block action, and spring is placed on fixed
Away from bolt 802.Such as Figure 10, Figure 11 and Figure 12, be provided with die button 10 between lower mould 8 and upper mould 9, die button 10 include upper button 101, under
Button 102 and middle slide fastener 103, upper button 101 are connected with upper mould 9, and lower button 102 and middle slide fastener 103 are connected with lower mould 8, upper button 101
With the middle snapping of slide fastener 103 so that upper and lower mould matched moulds, during die sinking among slide fastener 103 with it is lower buckle 102 coordinate and the mould that is connected of drive
Plate and inside and outside core parting and deviate from product snap fit.Fig. 9, Figure 11, Figure 12, upper and lower mould are provided with two product injection die cavities and matched somebody with somebody
The demoulding is realized in the two groups of compound demolding structures closed, the interior core linkage of two compound demolding structures.
The snap fit of Fig. 1 ventilation valve unions is by the core (interior core 2) of shaping snap fit and the core (outside core 1) of shaped notch
After first layering is staggered, interior core rotates 41 degree again, could be by the completely out product of core.According to the characteristics of the demoulding of plastic,
The guide runner 202 being made up of one section of straight trough and helicla flute is produced on interior core 2, guide runner is under the guiding of guide rod 4, so that it may with
Realize die sinking automatic demoulding.And the internal thread for valve union of ventilating can utilize and mold the drive pinion rotation strand tooth demoulding of rack 901,
The length of effective die sinking distance and rack in view of injection machine is driven using two-stage, modulus selection 1, first gear and second
Gear ratio is 3:1, the 3rd gear and the 4th gear ratio 2:1, drive system ratio is 6:1.
The demoulding/ejection of plastic：
During die sinking, in the presence of spring 801 and die button 10, parting is first begin at I, pushing block 3 drives interior core 2 forward
(on) motion, first forward (on) mobile 3.5mm, then to left-handed 41 degree, at this moment the parting at I has reached the (bullet of distance bolt 802
Spring cover thereon) stroke-limit, stop motion, the snap fit of interior 2 completely out product of core.Then parting, institute are started at II
Some gears are all engagements, and first gear rotates on rack 901, so as to drive core gear shaft 803,804 with six times
Speed rotates, and abjection .803,804 are core gear shafts from product, and 805 be tin bronze nut, pitch and the pitch phase of plastic
Together, so, with the rotation of core gear shaft, core can be deviate from from plastic automatically, the threaded portion without injuring product.
The die sinking distance controlling of mould makes rack 901 not depart from the engagement of gear and guarantees to close safely in the spacing stroke of distance plate
Mould is finally ejected plastic by thimble (52).
Described in above, only this wound is used using the embodiment of this origination techniques content, any those skilled in the art
Make done modifications and changes, all belong to the scope of the claims of this creation opinion, and be not limited to those disclosed embodiments.
Claims (10)
- A kind of 1. compound demolding structure, it is characterised in that：Including outside core, interior core, pushing block and guide rod, outside core therein is The core of moulded products breach, interior core are the core of moulded products snap fit, and outer core sleeve is in interior core top, outside core side wall Opening, pushing block is through outside core sidewall opening and is inserted into the groove of interior core side, and core is relative to outer in pushing block drive Core moves up and down, and interior core bottom is provided with guide runner, is provided with guide rod in guide runner, the guide runner is by straight trough and helicla flute group Move up guide runner in stroke into, interior core makes inside and outside core first be layered to rotate afterwards and realize product automatic demoulding under guide rod guiding.
- 2. compound demolding structure according to claim 1, it is characterised in that：The outside core sidewall opening and along core barrel To extension, the groove of interior core circumferentially extends for arcuation groove and along interior core.
- 3. compound demolding structure according to claim 1, it is characterised in that：The outside core side wall is provided with least one open Mouthful, pushing block is inserted into through corresponding opening in the groove of interior core side cooperation.
- 4. compound demolding structure according to claim 1, it is characterised in that：The interior core side wall is provided with 1 or more than 1 The guide runner of bar circle distribution, each guide runner be made up of straight trough and helicla flute and with a guide rod, guide runner from Core wall outer surface is the guide barrel construction with gradient to inner surface, and the gradient of the guide runner is 10-50 degree.
- 5. compound demolding structure according to claim 1, it is characterised in that：The lead angle of the helicla flute is 30-70 Degree.
- 6. compound demolding structure according to claim 1, it is characterised in that：The inner mold in-core is provided with least one thimble To eject in product.
- 7. the compound demolding structure according to one of claim 1 to 6, it is characterised in that：The outside core is consolidated with outside core Fixed board coordinates, and interior core bottom is provided with bottom plate, and guide rod coordinates with guide rod plate, and interior core is provided with set between guide rod plate and bottom plate Cylinder.
- 8. compound demolding structure according to claim 7, it is characterised in that：Compound demolding structure is arranged on lower mould, lower mould Coordinate with upper mould and realize that product is molded, lower mould is provided with the spring of driving pushing block action.
- 9. compound demolding structure according to claim 8, it is characterised in that：Die button is provided between the lower mould and upper mould, Die button includes upper button, lower button and middle slide fastener, upper button and is connected with upper mould, and lower button and middle slide fastener are connected with lower mould, and upper button is with Between slide fastener connect so that upper and lower mould matched moulds, during die sinking among slide fastener closed with lower snap fit and drive the template being connected and inside and outside core Parting and deviate from product snap fit.
- 10. compound demolding structure according to claim 8 or claim 9, it is characterised in that：The upper and lower mould is provided with two products The demoulding is realized in injection die cavities and two groups of compound demolding structures of cooperation, the interior core linkage of two compound demolding structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599335.9A CN106079297B (en) | 2016-07-27 | 2016-07-27 | Compound demolding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599335.9A CN106079297B (en) | 2016-07-27 | 2016-07-27 | Compound demolding structure |
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| Publication Number | Publication Date |
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| CN106079297A CN106079297A (en) | 2016-11-09 |
| CN106079297B true CN106079297B (en) | 2018-02-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107263817B (en) * | 2017-05-18 | 2019-03-05 | 四会市艺星饰品有限公司 | A kind of release method of injection mold and the mold |
| CN107234785B (en) * | 2017-07-21 | 2023-08-29 | 陈继鹏 | Device for manufacturing silica gel breast pump |
| US20190061219A1 (en) * | 2017-08-25 | 2019-02-28 | GM Global Technology Operations LLC | System And Method To Form Attachment Structure |
| CN109501158A (en) * | 2018-10-30 | 2019-03-22 | 湖北兴欣科技股份有限公司 | Semiautomatic demolding device |
| CN110900907B (en) * | 2019-11-29 | 2021-05-28 | 南京金三力高分子科技有限公司 | Forming die and processing method of wire harness rubber protective sleeve |
| CN115122587A (en) * | 2021-03-26 | 2022-09-30 | 惠州市耀盈精密技术有限公司 | Deep tooth product mould hank tooth drive mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202668900U (en) * | 2012-07-12 | 2013-01-16 | 宁波金氏实业有限公司 | Hexagon valve body injection mold |
| CN104708781B (en) * | 2013-12-11 | 2017-01-18 | 甘肃大禹节水集团股份有限公司 | Injection moulding workbench of PVC-U ball valve body |
| CN203973932U (en) * | 2014-06-16 | 2014-12-03 | 福州冠宏精密模具塑胶有限公司 | A kind of Valve Block Mould with oil cylinder |
| CN204487992U (en) * | 2014-11-11 | 2015-07-22 | 牟维军 | A kind of core-pulling die mechanism |
| CN205853281U (en) * | 2016-07-27 | 2017-01-04 | 厦门唯科模塑科技有限公司 | Compound demolding structure |
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Address after: 361000, No. 101, No. 16 Xiang Xiang Road, torch hi tech Zone (Xiangan), Xiamen, Fujian Patentee after: Xiamen Weike Molding Technology Co., Ltd Address before: 361000, No. 101, No. 16 Xiang Xiang Road, torch hi tech Zone (Xiangan), Xiamen, Fujian Patentee before: Xiamen Voke Mold & Plastic Engineering Co., Ltd. |
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