CN109016376A - The early return mechanism of injection mold and its early back method - Google Patents
The early return mechanism of injection mold and its early back method Download PDFInfo
- Publication number
- CN109016376A CN109016376A CN201811007781.1A CN201811007781A CN109016376A CN 109016376 A CN109016376 A CN 109016376A CN 201811007781 A CN201811007781 A CN 201811007781A CN 109016376 A CN109016376 A CN 109016376A
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- CN
- China
- Prior art keywords
- ejector retainner
- male
- retainner plate
- caster
- top pillar
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of early return mechanism of injection mold and its early back methods, the early return mechanism includes several thimbles, top pillar and distance block, described thimble one end is fixedly connected on lower ejector retainner plate, the thimble other end sequentially passes through ejector retainner plate, male template and male die core and close but do not protrude from the male chamber on male die core, described top pillar one end is fixedly connected on lower ejector retainner plate, the top pillar other end sequentially passes through ejector retainner plate and male template, the other end of the top pillar protrudes from the other end of thimble towards caster direction, elastic component is arranged on the top pillar, the elastic component is used to assist the reset of top pillar, distance block is equipped with when molding between the upper ejector retainner plate and male template, the distance block is fixedly connected with lower ejector retainner plate, and there is certain spacing between male template.Structure of the invention designs simple, reasonable, versatile, cost investment very little and improves the profit competitiveness of unitary mould on the basis of meeting injection mold early return mechanism design requirement.
Description
Technical field
The present invention relates to early return mechanisms, and in particular to a kind of early return mechanism of injection mold.
Background technique
Mold be in industrial production to be molded, be blow molded, squeeze out, die casting or the methods of forging and forming, smelting, punching press obtain
The various moulds and tool of required product make blank become the tool for having the product of specific shape and size under external force.
Injection mold mainly includes seven big systems, respectively running gate system, guidance system, formation system, core pulling system, ejection system,
Cooling system and exhaust system, after moulding molding, it is de- that when demoulding, usually utilizes the thimble in ejection system to eject molded part
Then mould is molded again, at present frequent occurrence mold when due to thimble does not reset in time and generate thimble be destroyed or
The case where die face is scratched by thimble.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of early return mechanism of injection mold, which can guarantee
Thimble will not touch mother module core in clamping process, to ensure that thimble and mother module core will not collide the feelings of damage
Condition.
The present invention is to solve technical solution used by its technical problem:
A kind of early return mechanism of injection mold, the mold include the bottom plate being set in sequence, lower ejector retainner plate, upper thimble
Plate, male template and caster, are equipped with male die core in the male template, and the male die core is equipped with male chamber, in the caster
Equipped with mother module core, the mother module core is equipped with parent form chamber, and when male template and caster molding, the male chamber and parent form chamber are spelled
It connects to be formed for the molding near closed hollow ring of moulding, the lower ejector retainner plate is fixedly connected with upper ejector retainner plate, which includes
Several thimbles, top pillar and distance block, described thimble one end are fixedly connected on lower ejector retainner plate, and the thimble other end sequentially passes through thimble
Plate, male template and male die core and close but do not protrude from the male chamber on male die core, described top pillar one end is fixedly connected on lower top
Needle plate, the top pillar other end sequentially pass through ejector retainner plate and male template, and the other end of the top pillar protrudes from top towards caster direction
The other end of needle is arranged with elastic component on the top pillar, which is used to assist the reset of top pillar, the upper ejector retainner plate and public affairs
Distance block is equipped between template, the distance block is fixedly connected with lower ejector retainner plate, and is had between distance block and male template when molding
There is certain spacing.
Preferably, the top pillar other end is resisted against on caster when male template and caster mold.
Preferably, accommodation groove is equipped in the male template for accommodating the elastic component, one end of the elastic component abuts against
The upper ejector retainner plate, the other end abut against in the accommodation groove, and the elastic component is brute spring.
Preferably, the upper ejector retainner plate and lower ejector retainner plate are locked by bolt.
Preferably, the top pillar is four, is individually fixed in four angles end of lower ejector retainner plate.
Preferably, it is equipped with jacking block in the bottom plate, when die sinking, which can push lower ejector retainner plate and upper ejector retainner plate
It is mobile until distance block abuts against male template simultaneously towards the direction of caster.
Preferably, the top pillar can protrude from male template under the promotion of jacking block, and the thimble is under the promotion of jacking block
Male die core can be protruded from and molding moulding is fallen off from male die core.
The beneficial effects of the present invention are: the invention mainly comprises the spring being arranged on top pillar, distance block, top pillar and tops
Needle, upper ejector retainner plate, lower ejector retainner plate, top pillar, thimble and distance block are that a movement is whole, under one end of top pillar and thimble is all fixed on
On ejector retainner plate, the other end of thimble is located just at the bottom of male chamber in male die core, and the other end of top pillar is resisted against caster
On, it just can ensure that caster first touches top pillar in molding in this way, without contacting with thimble, and guarantee that the morning of thimble returns
Position, to prevent in caster return, since thimble does not have thimble caused by timely return to stab mother module core forming surface
The case where wound or thimble are destroyed.Structure of the invention designs simple, reasonable, versatile, cost investment very little, full
On the basis of sufficient injection mold early return mechanism design requirement, the profit competitiveness of unitary mould is improved.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the perspective view of part-structure in the present invention；
Fig. 3 is the schematic diagram when present invention is opened completely；
Fig. 4 is the schematic diagram in clamping process of the present invention；
In figure: 10- bottom plate, 11- jacking block, ejector retainner plate under 20-, the upper ejector retainner plate of 30-, 31- thimble, 32- top pillar, 33-
Elastic component, 34- distance block, 40- male template, 41- male die core, 42- male chamber, 50- caster, 51- mother module core, 52- parent form chamber,
60- moulding.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment: as shown in Figs 1-4, a kind of early return mechanism of injection mold, the mold includes the lower fixation being set in sequence
Plate 10, lower ejector retainner plate 20, upper ejector retainner plate 30, male template 40 and caster 50, the male template 40 is interior to be equipped with male die core 41, institute
Male die core is stated equipped with male chamber 42, the caster 50 is interior to be equipped with mother module core 51, and the mother module core is equipped with parent form chamber 52, when
When male template 40 and caster 50 mold, the male chamber 42 and parent form chamber 52 are spliced to form for the molding closing of moulding 60
Type chamber, the lower ejector retainner plate 20 are fixedly connected with upper ejector retainner plate 30, which includes several thimbles 31, top pillar 32 and determine
Away from block 34, described 31 one end of thimble is fixedly connected on lower ejector retainner plate 20, the thimble other end sequentially pass through ejector retainner plate, male template and
Male die core and close but do not protrude from the male chamber 42 on male die core, described 32 one end of top pillar is fixedly connected on lower ejector retainner plate 20,
The top pillar other end sequentially passes through ejector retainner plate and male template, and the other end of the top pillar protrudes from the another of thimble towards caster direction
One end is arranged with elastic component 33 on the top pillar 32, which is used to assist the reset of top pillar, the upper ejector retainner plate 30 and public affairs
Distance block 34 is equipped between template 40, the distance block is fixedly connected with lower ejector retainner plate 20, and distance block and male template when molding
There is certain spacing between 40.The invention mainly comprises the springs and thimble that are arranged on top pillar 32, distance block 34, top pillar
31, in complete molding, distance block 34 is equipped between upper ejector retainner plate and male template, the spacing between distance block and male template 40 is just
It is the distance of thimble ejection, therefore the spacing is larger than the depth of male chamber, so that thimble ejects moulding completely
Male die core, it is ensured that moulding smoothly drops to finished product collecting region；And the length of top pillar is centainly greater than the length of thimble, i.e., complete
When molding, top pillar protrudes from thimble towards caster, just can ensure that caster first touches top pillar in molding in this way, without
It can be contacted with thimble, and guarantee the early return of thimble, to prevent in caster return, since thimble does not have timely return
Caused by thimble mother module core forming surface is stabbed or the case where thimble is destroyed.Structure of the invention design is simple, closes
Reason, versatile, cost investment very little improve whole mould on the basis of meeting injection mold early return mechanism design requirement
The profit competitiveness of tool.
32 other end of top pillar is resisted against on the caster 50 when male template and caster mold.Male template and master mold
The face that plate is laminated is plane, and in their center there is groove to be respectively used to insertion male die core and mother module core, public
The face that mode and mother module core are laminated also is plane, and the face being laminated with male template and caster is flush, in male model
The center of Renhe mother module core has groove, and respectively male chamber and parent form chamber, top pillar is located in the male template of thimble surrounding,
One end of top pillar and thimble is all fixed on lower ejector retainner plate 20, and the other end of thimble is located just at the bottom of male chamber in male die core
Portion, and the other end of top pillar is resisted against on caster, so that it is guaranteed that the other end of top pillar is higher by the other end of thimble, top pillar is always
Thimble can be protected to avoid contacting with each other with caster.
Accommodation groove is equipped in the male template 40 for accommodating the elastic component, one end of the elastic component abuts against on described
Ejector retainner plate 30, the other end abut against in the accommodation groove, and the elastic component 33 is brute spring.It is arranged brute spring outside top pillar,
In the raw, when top pillar is moved towards caster direction, spring is raised needle plate to spring and accommodation groove is pressed when molding
Contracting, when top pillar is driven by caster to be moved towards bottom plate 10, the restoring force of spring can also force top pillar to playback.Spring
It is arranged and the movement of top pillar and thimble is gently carried out, have the function of buffering, on the one hand guarantees moulding demoulding
Integrality；On the other hand guarantee that upper ejector retainner plate and lower ejector retainner plate smoothly playback.
As shown in Figures 2 and 3, the upper ejector retainner plate 30 and lower ejector retainner plate 20 are locked by bolt, and the top pillar 32 is four
It is a, it is individually fixed in four angles end of lower ejector retainner plate 20.It is equipped with jacking block 11 in the bottom plate 10, when die sinking, the jacking block energy
It is enough to push lower ejector retainner plate and upper ejector retainner plate mobile simultaneously towards the direction of caster until distance block abuts against male template, the top
Column can protrude from male template under the promotion of jacking block 11, and the thimble can protrude from male die core simultaneously under the promotion of jacking block 11
So that molding moulding falls off from male die core.
Operating process of the invention: steps are as follows:
Step 1: it molds for the first time: as shown in Figure 1, mother module core 51, male die core 41 are respectively embedded into caster 50 and male template
In 40, driving caster is mobile to male template side and molds with male template, and male die core 41 and mother module core 51 form and be used for moulding
60 molding near closed hollow rings；
Step 2: injection molding: the injected plastic near closed hollow ring, injection molding part 60 after cooling；
Step 3: die sinking: caster 50 is directed away from the direction movement of male template 40, die sinking under the drive of injection molding machine
Afterwards, upper ejector retainner plate 30 and lower ejector retainner plate 20 move under the promotion of injection molding machine jacking block 11 towards the direction of caster 50, until
Distance block 34 is resisted against in male template 40, and elastic component 33 is compressed at this time；The decrement of elastic component is the distance of thimble ejection, also
That is the distance between distance block and male template bottom；
Step 4: demoulding: as shown in figure 3, moulding 60 is detached from male die core 41 under the action of thimble 31, and in itself weight
It is fallen under the action of power at finished product collection, completes the demoulding of moulding；
Step 5: mold again: as shown in figure 4, driving caster 50 is mobile to 40 side of male template, caster 50 is first
Top pillar 32 is touched, top pillar is under the active force of caster 50 and the restoring force collective effect of elastic component 33, to bottom plate 10
Until playbacking, while upper ejector retainner plate 30, lower ejector retainner plate 20 and thimble 31 playback together, caster 50 and male template 40 are completed for movement
Molding, preparation are molded again.
It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the premise utility,
Various modifications and improvements can be made, and these are all within the protection scope of the present invention.Therefore, the protection of the invention patent
Range should be determined by the appended claims.
Claims (8)
1. a kind of early return mechanism of injection mold, the mold include the bottom plate (10) being set in sequence, lower ejector retainner plate (20), on
Ejector retainner plate (30), male template (40) and caster (50), the male template (40) is interior to be equipped with male die core (41), on the male die core
Equipped with male chamber (42), mother module core (51) are equipped in the caster (50), the mother module core is equipped with parent form chamber (52), works as public affairs
When template (40) and caster (50) mold, the male chamber (42) and parent form chamber (52) be spliced to form for moulding (60) at
The near closed hollow ring of type, it is characterised in that: the lower ejector retainner plate (20) is fixedly connected with upper ejector retainner plate (30), which includes
Several thimbles (31), top pillar (32) and distance block (34), described thimble (31) one end are fixedly connected on lower ejector retainner plate (20), thimble
The other end sequentially passes through ejector retainner plate, male template and male die core and close but do not protrude from the male chamber (42) on male die core, institute
It states top pillar (32) one end and is fixedly connected on lower ejector retainner plate (20), the top pillar other end sequentially passes through ejector retainner plate and male template, the top
The other end of column protrudes from the other end of thimble towards caster direction, is arranged with elastic component (33) on the top pillar (32), should
Elastic component is used to assist the reset of top pillar, is equipped with distance block (34) between the upper ejector retainner plate (30) and male template (40), described
Distance block is fixedly connected with lower ejector retainner plate (20), and has certain spacing when molding between distance block and male template (40).
2. the early return mechanism of injection mold according to claim 1, it is characterised in that: top pillar (32) other end against
On caster (50) when male template and caster mold.
3. the early return mechanism of injection mold according to claim 1, it is characterised in that: be equipped with and hold in the male template (40)
Slot is set for accommodating the elastic component (33), one end of the elastic component abuts against the upper ejector retainner plate (30), and the other end abuts against
In the accommodation groove, the elastic component (33) is brute spring.
4. the early return mechanism of injection mold according to claim 1, it is characterised in that: upper ejector retainner plate (30) He Xiading
Needle plate (20) is locked by bolt.
5. the early return mechanism of injection mold according to claim 1, it is characterised in that: the top pillar (32) is four, point
It is not fixed on four angles end of lower ejector retainner plate (20).
6. the early return mechanism of injection mold according to claim 1, it is characterised in that: be equipped in the bottom plate (10)
Jacking block (11), when die sinking, the jacking block lower ejector retainner plate and upper ejector retainner plate can be pushed mobile simultaneously towards the direction of caster until
Distance block abuts against male template.
7. the early return mechanism of injection mold according to claim 6, it is characterised in that: the top pillar is pushed away jacking block (11)
Male template can be protruded under dynamic, the thimble can protrude from male die core under the promotion of jacking block (11) and make molding note
Plastic falls off from male die core.
8. a kind of early back method of the early return mechanism of injection mold described in any one of -7 according to claim 1, feature exist
In: steps are as follows:
Step 1: it molds for the first time: mother module core (51), male die core (41) is respectively embedded into caster (50) and male template (40),
It drives caster mobile to male template side and is molded with male template, male die core (41) and mother module core (51) form and be used for moulding
(60) molding near closed hollow ring；
Step 2: injection molding: the injected plastic near closed hollow ring, injection molding part (60) after cooling；
Step 3: die sinking: caster (50) is directed away from the direction movement of male template (40), die sinking under the drive of injection molding machine
Afterwards, upper ejector retainner plate (30) and lower ejector retainner plate (20) are transported under the promotion of injection molding machine jacking block (11) towards the direction of caster (50)
Dynamic, until distance block (34) are resisted against on male template (40), elastic component (33) is compressed at this time；
Step 4: demoulding: moulding (60) is detached from male die core (41) under the action of thimble (31), and in the effect of self gravity
Under fall at finished product collection, complete the demoulding of moulding；
Step 5: mold again: driving caster (50) is mobile to male template (40) side, and caster (50) touches top pillar first
(32), top pillar moves under the active force of caster (50) and the restoring force collective effect of elastic component (33) to bottom plate (10)
It moves until playbacking, while upper ejector retainner plate (30), lower ejector retainner plate (20) and thimble (31) playback together, caster (50) and male template
(40) molding is completed, preparation is molded again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811007781.1A CN109016376A (en) | 2018-08-31 | 2018-08-31 | The early return mechanism of injection mold and its early back method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811007781.1A CN109016376A (en) | 2018-08-31 | 2018-08-31 | The early return mechanism of injection mold and its early back method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109016376A true CN109016376A (en) | 2018-12-18 |
Family
ID=64625869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811007781.1A Withdrawn CN109016376A (en) | 2018-08-31 | 2018-08-31 | The early return mechanism of injection mold and its early back method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109016376A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454814A (en) * | 2018-12-29 | 2019-03-12 | 福建福光光电科技有限公司 | A kind of lens mold pre-assembled verification structure and its working method |
| CN110171106A (en) * | 2019-06-20 | 2019-08-27 | 无锡模达科技有限公司 | A kind of sound equipment screen cloth and its mold |
| CN114536665A (en) * | 2022-02-10 | 2022-05-27 | 联宝(合肥)电子科技有限公司 | Injection mold and demolding method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814926A (en) * | 2012-09-12 | 2012-12-12 | 晟扬精密模具（昆山）有限公司 | Injection mould with ejection mechanism |
| CN203680699U (en) * | 2014-04-17 | 2014-07-02 | 深圳市东汇精密机电有限公司 | Die |
| CN107351322A (en) * | 2017-08-28 | 2017-11-17 | 东莞市广正模具塑胶有限公司 | A kind of rear mold mould |
| CN208867460U (en) * | 2018-08-31 | 2019-05-17 | 硅湖职业技术学院 | The early return mechanism of injection mold |
-
2018
- 2018-08-31 CN CN201811007781.1A patent/CN109016376A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814926A (en) * | 2012-09-12 | 2012-12-12 | 晟扬精密模具（昆山）有限公司 | Injection mould with ejection mechanism |
| CN203680699U (en) * | 2014-04-17 | 2014-07-02 | 深圳市东汇精密机电有限公司 | Die |
| CN107351322A (en) * | 2017-08-28 | 2017-11-17 | 东莞市广正模具塑胶有限公司 | A kind of rear mold mould |
| CN208867460U (en) * | 2018-08-31 | 2019-05-17 | 硅湖职业技术学院 | The early return mechanism of injection mold |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454814A (en) * | 2018-12-29 | 2019-03-12 | 福建福光光电科技有限公司 | A kind of lens mold pre-assembled verification structure and its working method |
| CN109454814B (en) * | 2018-12-29 | 2023-11-17 | 福建福光光电科技有限公司 | Pre-assembly checking structure of lens mold and working method thereof |
| CN110171106A (en) * | 2019-06-20 | 2019-08-27 | 无锡模达科技有限公司 | A kind of sound equipment screen cloth and its mold |
| CN114536665A (en) * | 2022-02-10 | 2022-05-27 | 联宝(合肥)电子科技有限公司 | Injection mold and demolding method |
| CN114536665B (en) * | 2022-02-10 | 2023-10-17 | 联宝(合肥)电子科技有限公司 | Injection mold and demolding method |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |
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| WW01 | Invention patent application withdrawn after publication |