CN107756743A - The secondary demolding mechanism of the tiny projection of injection mold - Google Patents
The secondary demolding mechanism of the tiny projection of injection mold Download PDFInfo
- Publication number
- CN107756743A CN107756743A CN201711009000.8A CN201711009000A CN107756743A CN 107756743 A CN107756743 A CN 107756743A CN 201711009000 A CN201711009000 A CN 201711009000A CN 107756743 A CN107756743 A CN 107756743A
- Authority
- CN
- China
- Prior art keywords
- spring
- support block
- core
- plate
- compound plate
- 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.)
- Granted
Links
Classifications
-
- 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
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
Abstract
The secondary demolding mechanism of the tiny projection of injection mold,Including upper,Lower compound plate,Upper compound plate divides into die cavity,Perforation is opened in lower compound plate,Support block is set on lower compound plate,On being set on lower compound plate between support block,Lower ejector retainner plate and thimble,Core is set on support block,There is the working of plastics of injection molding between core and die cavity,Projection processed under working of plastics,Fixing hole processed in projection,It is characterized in that set fixed column on the lower compound plate,Fixed post head small column,Small column is engaged with the fixing hole of working of plastics,On,Lower spring groove is provided with lower ejector retainner plate,Spring is set in lower spring groove,Lower spring upper end is in contact with upper ejector retainner plate,Lower spring lower end is in contact with lower compound plate,Made on support block in upper spring groove and set spring,Upper spring upper end is in contact with core,Upper lower spring end is in contact with support block,Spacing kerve is opened on core,Position drawing of being limited in support block is sold,It is spacing to draw pin to connect spacing arm-tie through core,Spacing arm-tie is engaged with spacing kerve.
Description
Technical field
The present invention relates to injection mold, more particularly to the secondary demolding mechanism of the tiny projection of injection mold.
Background technology
After injection mold is to working of plastics injection molding, if the surface of working of plastics is formed with tiny projection, and the inwall of projection
Also small internal diameter fixing hole, prior art generally use ejector sleeve deviate from the fixing hole of working of plastics, and that ejector sleeve includes an external diameter is thin
Small fixed pin, fixed pin are mutually fixed with lower compound plate, and the upper end of fixed pin is engaged with the fixing hole of working of plastics, outside fixed pin
Top stem casing is cased with, the lower end of top stem casing is mutually fixed with upper and lower ejector retainner plate, and the upper end of top stem casing connects with the projection lower end of working of plastics
Touch, after working of plastics injection molding, fixed pin is remained stationary as, and top stem casing is withstood under working of plastics projection, passes through upper and lower ejector retainner plate band
Dynamic top stem casing and thimble eject working of plastics, the fixing hole of working of plastics is deviate from fixed pin, the structure has the drawback that：Due to
The projection of working of plastics and the size of fixing hole all very littles, therefore corresponding fixed pin and the size of top stem casing also very little, and consolidate
The package power for determining hole to fixed pin head is again very big, using top stem casing top projection, very easily causes top stem casing flexural deformation, and
Top stem casing is enclosed on outside fixed pin again, therefore fixed pin also flexural deformation therewith, and both service life is short, it is necessary to often change,
Improve member replacing cost.
The content of the invention
The shortcomings that the invention aims to overcome prior art to exist, there is provided a kind of structural strength is high, ensures to use
In the life-span, reduce the secondary demolding mechanism of the tiny projection of injection mold of member replacing cost.
The technical scheme of the secondary demolding mechanism of the tiny projection of injection mold of the present invention is：Including upper compound plate and lower compound plate,
Die cavity is set under upper compound plate, perforation is provided with lower compound plate, support block is set on lower compound plate, is set on the lower compound plate between support block
Ejector retainner plate, lower ejector retainner plate and thimble, injector push rod are in contact through perforation with lower ejector retainner plate, and core, type are set on support block
There is the working of plastics of injection molding between core and die cavity, the tiny projection of external diameter is formed with working of plastics, fixing hole is formed with projection, its
It is characterised by：Fixed column is set on described lower compound plate, and the head of fixed column is formed with small column, the fixation of small column and working of plastics
Hole is engaged, and is provided with lower spring groove under upper ejector retainner plate and lower ejector retainner plate, lower spring, the upper end of lower spring are set in lower spring groove
It is in contact with upper ejector retainner plate, the lower end of lower spring is in contact with lower compound plate, and spring groove is formed with support block, is set in upper spring groove
Spring is put, the upper end of upper spring is in contact with core, and the lower end of upper spring is in contact with support block, and spacing drawing is provided with core
Groove, set in support block it is spacing draw pin, spacing to draw pin to connect spacing arm-tie through core, spacing arm-tie is engaged with spacing kerve.
The invention discloses a kind of secondary demolding mechanism of the tiny projection of injection mold, after working of plastics injection molding, mould
Tool gradually die sinking, is now first promoted support block and lower compound plate by upper spring and lower spring, upper spring is downward in the presence of restoring force
Support block is promoted, support block drives lower compound plate, core is first remained stationary as, and lower spring pushes down on lower compound plate, and lower compound plate drives solid
Fixed column is downward, upper and lower ejector retainner plate and thimble is first remained stationary as, and now mould first once molds between core and support block, and
Working of plastics, core, upper ejector retainner plate, lower ejector retainner plate, thimble all remain stationary as, and the small column in fixed column is first deviate from working of plastics convex
The fixing hole of post, stop opening when spacing arm-tie is in contact with the spacing kerve of core, between core and support block, it is now spacing
Arm-tie drives core to be moved rearwards together, mould from twice-die-opening at core and die cavity, and drive working of plastics, upper ejector retainner plate, under
Ejector retainner plate and thimble are moved rearwards together, and mould die sinking, ejector retainner plate is moved rearwardly into instantly when being in contact with injector push rod, note
The machine push rod of penetrating withstands upper and lower ejector retainner plate and stops movement, and upper and lower ejector retainner plate drives thimble by working of plastics ejection device.This programme is noted
The secondary demolding mechanism of the tiny projection of mould, by by fixed column and the integrally manufactured shaping of small column, being made using upper and lower spring
Mould first once molds at core and support block, the fixing hole of working of plastics is first deviate from small column, relative to being pushed up in existing ejector sleeve
Rod set follows the structure that thimble directly ejects working of plastics, and its intensity is higher, service life length, the projection and fixing hole of working of plastics
Abjection is convenient, reduces the replacement cost of accessory.
The secondary demolding mechanism of the tiny projection of injection mold of the present invention, described fixed column passes through lower spring, spacing to draw pin
Through upper spring.Fixed column can play guide effect to lower spring, and spacing drawing pin can play guide effect to upper spring, prevent
Shifted during upper and lower spring ejection, particularly after upper and lower ejector retainner plate is continued up top by injector push rod, lower spring
Upper end disengages with upper ejector retainner plate, and fixed column can play position-limiting action to lower spring, prevents its generation from rocking.
Brief description of the drawings
Fig. 1 is the matched moulds status architecture schematic diagram of the secondary demolding mechanism of the tiny projection of injection mold；
Fig. 2 is the die opening state structural representation of the secondary demolding mechanism of the tiny projection of injection mold；
Fig. 3 is the working of plastics ejection status architecture schematic diagram of the secondary demolding mechanism of the tiny projection of injection mold.
Embodiment
The present invention relates to a kind of secondary demolding mechanism of the tiny projection of injection mold, as shown in Fig. 1-Fig. 3, including it is upper multiple
Plate 1 and lower compound plate 2, die cavity 3 is set under upper compound plate, perforation 4 is provided with lower compound plate, support block 5 is set on lower compound plate, between support block
Lower compound plate on upper ejector retainner plate 6, lower ejector retainner plate 7 and thimble 8 are set, injector push rod 9 connects through perforation 4 with lower ejector retainner plate 7
Touch, the setting core 10 on support block, there is the working of plastics 11 of injection molding between core and die cavity 3, it is thin to be formed with external diameter under working of plastics
Small projection 12, fixing hole 13 is formed with projection, it is characterised in that：Fixed column 14 is set on described lower compound plate 2, fixed column
Head is formed with small column 15, and small column is engaged with the fixing hole 13 of working of plastics 11, is opened under upper ejector retainner plate 6 and lower ejector retainner plate 7
There is lower spring groove 16, lower spring 17 is set in lower spring groove, the upper end of lower spring is in contact with upper ejector retainner plate, the lower end of lower spring
Be in contact with lower compound plate 2, be formed with spring groove 18 on support block 5, upper spring 19 is set in upper spring groove, the upper end of upper spring with
Core 10 is in contact, and the lower end of upper spring is in contact with support block, and spacing kerve 20 is provided with core, spacing drawing is set in support block
Pin 21, spacing to draw pin to connect spacing arm-tie 22 through core 10, spacing arm-tie is engaged with spacing kerve 20.When the note of working of plastics 11
After being moulded into type, mould gradually molds, and now first promotes support block 5 with in the presence of restoring force by upper spring 19 and lower spring 17
Compound plate 2, upper spring 19 push down on support block 5, and support block drives lower compound plate 2, core 10 is first remained stationary as, and lower spring 17 is downward
Lower compound plate is promoted, lower compound plate drives fixed column 14 downward, upper and lower ejector retainner plate 6,7 and thimble 8 is first remained stationary as, now mould
First once molded between core 10 and support block 5, and working of plastics 11, core 10, upper ejector retainner plate 6, lower ejector retainner plate 7, thimble 8 are all protected
Hold motionless, the small column 15 in fixed column 14 is first deviate from the fixing hole 13 of working of plastics projection 12, when spacing arm-tie 22 and core
Stop opening when 10 spacing kerve 20 is in contact, between core and support block 5, now spacing arm-tie drives core to be moved back together
Dynamic, mould drives working of plastics 11, upper ejector retainner plate 6, lower ejector retainner plate 7 and thimble 8 together from twice-die-opening at core and die cavity 3
It is moved rearwards, mould die sinking, ejector retainner plate is moved rearwardly into instantly when being in contact with injector push rod 9, injector push rod withstands,
Lower ejector retainner plate 6,7 stops movement, and upper and lower ejector retainner plate drives thimble 8 by the ejection device of working of plastics 11.This programme injection mold is tiny
The secondary demolding mechanism of projection, by by the 15 integrally manufactured shaping of fixed column 14 and small column, being made using upper and lower spring 19,17
Mould first once molds at core 10 and support block 5, the fixing hole 13 of working of plastics is first deviate from small column 15, relative to officials
Top stem casing follows the structure that thimble directly ejects working of plastics in cylinder, and its intensity is higher, service life length, the projection of working of plastics 11
12 and the abjection of fixing hole 13 it is convenient, reduce the replacement cost of accessory.Described fixed column 14 passes through lower spring 17, spacing to draw pin
21 pass through upper spring 19.Fixed column 14 can play guide effect to lower spring 17, and spacing drawing pin 21 can play to upper spring 19 leads
To effect, prevent from shifting during upper and lower spring ejection, particularly injector push rod 9 by upper and lower ejector retainner plate 6,7 continue to
Behind upper top, the upper end of lower spring 17 disengages with upper ejector retainner plate, and fixed column 14 can play position-limiting action to lower spring 17, prevent
Its generation is rocked.
Claims (2)
1. the secondary demolding mechanism of the tiny projection of injection mold, including upper compound plate（1）With lower compound plate（2）, setting type under upper compound plate
Chamber（3）, perforation is provided with lower compound plate（4）, support block is set on lower compound plate（5）, upper thimble is set on the lower compound plate between support block
Plate（6）, lower ejector retainner plate（7）And thimble（8）, injector push rod（9）Through perforation（4）With lower ejector retainner plate（7）It is in contact, in support block
Upper setting core（10）, core and die cavity（3）Between have the working of plastics of injection molding（11）, it is tiny that external diameter is formed with working of plastics
Projection（12）, fixing hole is formed with projection（13）, it is characterised in that：Described lower compound plate（2）Upper setting fixed column（14）, it is fixed
The head of post is formed with small column（15）, small column and working of plastics（11）Fixing hole（13）It is engaged, in upper ejector retainner plate（6）With under
Ejector retainner plate（7）Under be provided with lower spring groove（16）, lower spring is set in lower spring groove（17）, the upper end of lower spring and upper ejector retainner plate phase
Contact, the lower end of lower spring and lower compound plate（2）It is in contact, in support block（5）On be formed with spring groove（18）, set in upper spring groove
Upper spring（19）, the upper end of upper spring and core（10）It is in contact, the lower end of upper spring is in contact with support block, is provided with core
Spacing kerve（20）, set in support block and spacing draw pin（21）, it is spacing to draw pin through core（10）Connect spacing arm-tie（22）, it is spacing
Arm-tie and spacing kerve（20）It is engaged.
2. the secondary demolding mechanism of the tiny projection of injection mold as claimed in claim 1, it is characterised in that：Described fixed column
（14）Through lower spring（17）, it is spacing to draw pin（21）Through upper spring（19）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711009000.8A CN107756743B (en) | 2017-10-25 | 2017-10-25 | Secondary demolding mechanism for fine convex columns of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711009000.8A CN107756743B (en) | 2017-10-25 | 2017-10-25 | Secondary demolding mechanism for fine convex columns of injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107756743A true CN107756743A (en) | 2018-03-06 |
| CN107756743B CN107756743B (en) | 2023-04-18 |
Family
ID=61270540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711009000.8A Active CN107756743B (en) | 2017-10-25 | 2017-10-25 | Secondary demolding mechanism for fine convex columns of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107756743B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748886A (en) * | 2018-06-04 | 2018-11-06 | 珠海格力精密模具有限公司 | A kind of injection mold |
| CN110053215A (en) * | 2019-03-28 | 2019-07-26 | 江苏雨燕模业科技股份有限公司 | A kind of automobile door panel injection mold |
| CN113997526A (en) * | 2021-12-07 | 2022-02-01 | 华域视觉科技(上海)有限公司 | Ejector block for preventing injection molding part from being ejected and loosened and using method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202336981U (en) * | 2011-10-26 | 2012-07-18 | 浙江凯华模具有限公司 | Secondary demoulding mechanism of pull rod of injection mould |
| CN203739167U (en) * | 2014-03-04 | 2014-07-30 | 浙江模具厂 | Secondary ejecting-out and demoulding mechanism for automotive plastic mold |
| CN205185231U (en) * | 2015-11-03 | 2016-04-27 | 浙江凯华模具有限公司 | Two push pedal secondary ejection mechanism of header board injection mould |
| CN105643888A (en) * | 2015-12-30 | 2016-06-08 | 优力精密塑胶（苏州工业园区）有限公司 | Segmented release injection mold and machining method thereof |
| CN107186978A (en) * | 2017-07-12 | 2017-09-22 | 滨海模塑集团有限公司 | The synchronous transfer bar mechanism of the densely covered aperture core pulling of injection mold |
| CN207449020U (en) * | 2017-10-25 | 2018-06-05 | 浙江凯华模具有限公司 | The secondary demolding mechanism of the tiny pillar of injection mold |
-
2017
- 2017-10-25 CN CN201711009000.8A patent/CN107756743B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202336981U (en) * | 2011-10-26 | 2012-07-18 | 浙江凯华模具有限公司 | Secondary demoulding mechanism of pull rod of injection mould |
| CN203739167U (en) * | 2014-03-04 | 2014-07-30 | 浙江模具厂 | Secondary ejecting-out and demoulding mechanism for automotive plastic mold |
| CN205185231U (en) * | 2015-11-03 | 2016-04-27 | 浙江凯华模具有限公司 | Two push pedal secondary ejection mechanism of header board injection mould |
| CN105643888A (en) * | 2015-12-30 | 2016-06-08 | 优力精密塑胶（苏州工业园区）有限公司 | Segmented release injection mold and machining method thereof |
| CN107186978A (en) * | 2017-07-12 | 2017-09-22 | 滨海模塑集团有限公司 | The synchronous transfer bar mechanism of the densely covered aperture core pulling of injection mold |
| CN207449020U (en) * | 2017-10-25 | 2018-06-05 | 浙江凯华模具有限公司 | The secondary demolding mechanism of the tiny pillar of injection mold |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748886A (en) * | 2018-06-04 | 2018-11-06 | 珠海格力精密模具有限公司 | A kind of injection mold |
| CN108748886B (en) * | 2018-06-04 | 2023-10-27 | 珠海格力精密模具有限公司 | Injection mold |
| CN110053215A (en) * | 2019-03-28 | 2019-07-26 | 江苏雨燕模业科技股份有限公司 | A kind of automobile door panel injection mold |
| CN113997526A (en) * | 2021-12-07 | 2022-02-01 | 华域视觉科技(上海)有限公司 | Ejector block for preventing injection molding part from being ejected and loosened and using method |
| CN113997526B (en) * | 2021-12-07 | 2024-04-09 | 华域视觉科技(上海)有限公司 | Ejector block for preventing ejection looseness of injection molding part and application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107756743B (en) | 2023-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203622842U (en) | Injection mold and pitched roof oil cylinder combined sequential inner and outer inverted buckle removal mechanism | |
| CN107756743A (en) | The secondary demolding mechanism of the tiny projection of injection mold | |
| CN1951843B (en) | Optic element forming device | |
| CN103331882B (en) | Injection mold directly pushes up lifter combination Shi Tuo back-off mechanism | |
| CN102785335B (en) | Cutting mechanism for drawn wire at sprue of injection mold | |
| CN203472061U (en) | Automatic-snap side gate mechanism of two-plate injection mold | |
| JP2008155490A (en) | Undercut shape forming mechanism of injection molding mold | |
| CN103786314A (en) | Joint push-out mechanism plastic die | |
| CN102689421A (en) | Secondary ejection mechanism of connector shell mould for aerospace | |
| CN207449020U (en) | The secondary demolding mechanism of the tiny pillar of injection mold | |
| CN104802372A (en) | Slide ejection and mould opening type injection mould | |
| CN203357827U (en) | Straight jacking and oblique jacking combined type inverted buckle releasing mechanism for injection mold | |
| CN205969758U (en) | Injection mold lever secondary ejection mechanism | |
| CN104972620A (en) | Injection mold injection part side edge upper and lower internal reversed buckles demoulding mechanism | |
| CN208359394U (en) | A kind of aerospace Linker Mold with special ejecting mechanism | |
| CN103737805A (en) | Notebook computer base back cover precision mold | |
| CN205185231U (en) | Two push pedal secondary ejection mechanism of header board injection mould | |
| CN102601944A (en) | Forced demolding device for molding plastic product | |
| CN202200477U (en) | Sliding core-pulling mechanism in inclined guide column at side hole of plastic shell | |
| CN101642946B (en) | Optical element molding mould | |
| CN203697414U (en) | Lifter de-molding stopping device of injection mould | |
| CN103737867B (en) | Injection mould slanted demoulding stop gauge | |
| CN210552827U (en) | Injection mold core-pulling mechanism and injection mold | |
| CN202623200U (en) | Secondary ejection mechanism of connector shell mold for aerospace | |
| JP5462600B2 (en) | Injection mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |