CN106426813B - A kind of injection mold with core-pulling mechanism - Google Patents
A kind of injection mold with core-pulling mechanism Download PDFInfo
- Publication number
- CN106426813B CN106426813B CN201610956619.9A CN201610956619A CN106426813B CN 106426813 B CN106426813 B CN 106426813B CN 201610956619 A CN201610956619 A CN 201610956619A CN 106426813 B CN106426813 B CN 106426813B
- Authority
- CN
- China
- Prior art keywords
- die holder
- core
- supporting element
- ejector half
- upper die
- 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.)
- Active
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
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- 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
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
A kind of injection mold with core-pulling mechanism, including upper die holder and lower die holder, upper die holder is provided with cavity plate, lower die holder is provided with punch-pin, sliding is provided with the first ejector half core between upper die holder and lower die holder, upper die holder is provided with the first supporting element and the second supporting element, first ejector half core is connected with screw rod, gear and the gear are arranged on screw rod between the first supporting element and the second supporting element, upper die holder side wall is provided with rack gear support, rack gear support is provided with rack gear, rack gear mate gear is engaged work, mandrel cavity is provided in punch-pin, there are two the second ejector half cores for setting in mandrel cavity, elastic rod is connected between second ejector half core, elastic rod, on be provided with permanent magnet, mandrel cavity bottom is provided with the electromagnet that permanent magnet can be attracted close after energization.Compared with prior art, a kind of injection mold with core-pulling mechanism of the invention, using simply dexterously pulled core structure, to reduce production difficulty.
Description
Technical field
The invention belongs to injection machine mould apparatus field more particularly to a kind of injection molds with core-pulling mechanism.
Background technique
Injection molding is also known as injection molding molding, it is a kind of forming method of simultaneous molding of injection.Injection molding forming method
Advantage is that speed of production is fast, high-efficient, operates and automation can be achieved, and designs and varieties are more, and shape can go from the simple to the complex, and size can be with
It is descending, and product size is accurate, and product easily updates, and the product of energy forming shape complexity, injection molding is suitable for big
The processing and formings field such as amount production and complex-shaped product.At a certain temperature, the plastics material melted completely by helical screw agitator
Material injects die cavity, after cooling and solidifying, the method that obtains molded product with high pressure.This method is suitable for batch of complex-shaped component
Amount production, is important one of processing method.
In injection molding work, injection mold is very important, and can be designed according to different product different
Injection mold.The product having at present includes the recessed feature of all round closure, two avris with side, this just needs to synchronize more
Heavy side side core_pulling demoulding.According to this requirement, injection mold is needed, this kind of injection mold needs to overcome in molded product
On with side include that all round closure, both sides exist simultaneously side recess feature and need synchronous side core_pulling demoulding, mechanism design
More difficult real work problem.The core pulling and automation molding production of features described above product are realized with simple mechanism,
It is effectively reduced mold and manufactures cost and product injection cost.
It is to be designed using the structure of inclined guide pillar mostly, to carry out core pulling in current Injection Mold Design.This mode,
To the more demanding of inclined guide pillar, especially its structural strength and surface roughness.And simultaneously, to the surface requirements of slider core
It is very high.Production difficulty raising is allowed in this way.Although one set of die can be reused, when breaking down,
The difficulty of maintenance as above-mentioned high request and improve.Therefore, a kind of injection mold is designed, using simply dexterously taking out
Cored structure, substitutes the structure of existing inclined guide pillar formula, to reduce production difficulty, and is able to produce to have with side and includes
The product of the recessed feature of all round closure, two avris.
Summary of the invention
The present invention aiming at the shortcomings in the prior art, provides a kind of injection mold with core-pulling mechanism, using simple skilful
Wonderful ground pulled core structure, substitutes the structure of existing inclined guide pillar formula, to reduce production difficulty, and is able to produce with same side
It include the product of the recessed feature of all round closure, two avris.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals: a kind of with core-pulling mechanism
Injection mold, including upper die holder and lower die holder, the upper die holder are provided with cavity plate, and the lower die holder is provided with punch-pin, it is described on
Sliding is provided with the first ejector half core between die holder and lower die holder, and the upper die holder is provided with the first supporting element and the second supporting element,
The first ejector half core is connected with screw rod, and the screw rod passes through first supporting element and the second supporting element, covers on the screw rod
Equipped with gear and the gear is between first supporting element and the second supporting element, and the lower die holder side wall is provided with rack gear branch
Seat, the rack gear support are provided with rack gear, and the rack gear cooperates the gear to be engaged work, is provided with type in the punch-pin
Core cavity, setting is connected with elastic rod, the elasticity between the second ejector half core there are two the second ejector half core in the mandrel cavity
Bar is in bending state and pushing away two the second ejector half cores mutually withstands on it on mandrel cavity inner wall, and the elastic rod hits exactly position
It installs and is equipped with permanent magnet, the mandrel cavity bottom is provided with the electromagnet that the permanent magnet can be attracted close after energization, described
Electromagnet cooperates the permanent magnetism body running to make elastic rod that further bending occur.
The upper die holder is provided with sliding slot, guide post is provided on the first ejector half core, the guide post is in the cunning
It is movable in slot.
Second supporting element is also equipped on first supporting element towards ball is provided on the side wall of the gear
Ball.
The second ejector half core tail end is provided with connection terminal, and the end of the elastic rod is rotatablely connected on the connection terminal
Portion.
A kind of injection mold with core-pulling mechanism of the invention, using simply dexterously pulled core structure, substitution are existing tiltedly
The structure of guide colume type to reduce production difficulty, and is able to produce that have with side include that all round closure, two avris are recessed
Feature product.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the schematic diagram after the completion of present invention injection work.
Fig. 3 is the first ejector half core and its peripheral structure schematic diagram of the invention.
Fig. 4 is the second ejector half core and its peripheral structure schematic diagram of the invention.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing: as shown in Figures 1 to 4, one
Injection mold of the kind with core-pulling mechanism, including upper die holder 2 and lower die holder 1, the upper die holder 2 are provided with cavity plate 26, the lower die
Seat 1 is provided with punch-pin 3, and sliding is provided with the first ejector half core 4 between the upper die holder 2 and lower die holder 1, and the upper die holder 2 is arranged
There are the first supporting element 21 and the second supporting element 22, the first ejector half core 4 is connected with screw rod 41, and the screw rod 41 passes through described the
One supporting element 21 and the second supporting element 22 are arranged with gear 23 on the screw rod 41 and the gear 23 are located at first supporting element
21 and second between supporting element 22, and 1 side wall of lower die holder is provided with rack gear support 11, and the rack gear support 11 is provided with rack gear
12, the rack gear 12 cooperates the gear 23 to be engaged work, and mandrel cavity 31, the mandrel cavity are provided in the punch-pin 3
Setting is connected with elastic rod 7 between the second ejector half core 5, the elastic rod 7 is in curved there are two the second ejector half core 5 in 31
Curved state and pushing away two the second ejector half cores 5 mutually withstands on it on 31 inner wall of mandrel cavity, 7 center position of elastic rod is set
It is equipped with permanent magnet 71,31 bottom of mandrel cavity is provided with the electromagnet 33 that the permanent magnet 71 can be attracted close after energization,
The electromagnet 33 cooperates the work of permanent magnet 71 so that elastic rod 7 occurs further to be bent.
The upper die holder 2 is provided with sliding slot 25, and guide post 42, the guide post 42 are provided on the first ejector half core 4
It is movable in the sliding slot 25.In this way, the track that the first ejector half core 4 is set according to sliding slot 25 is mobile, it will not
Scheduled track is deviated, to avoid damage device.
Second supporting element 22 is towards being provided with ball 221, first supporting element 21 on the side wall of the gear 23
On be also equipped with ball.The effect of ball is exactly to reduce frictional force, when rotate under drive of the gear 23 in rack gear 12 when
It waits, may be in contact with the second supporting element 22 or the first supporting element 21, if without ball 221, rubbing between them
Wiping power is exactly sliding friction, this will damage gear 23, the second supporting element 22 or the first supporting element 21.And it is provided with ball
221, it will be able to sliding friction be become into rolling friction, frictional force greatly reduces in this way.Also, by design, it can make
It obtains ball 221 to be first depleted, to protect gear 23, the second supporting element 22 and the first supporting element 21.
Second ejector half core, 5 tail end is provided with connection terminal 52, is rotatablely connected the elasticity on the connection terminal 52
The end of bar 7.
The present apparatus will first mold before carrying out injection molding work namely lower die holder 1 is moved up close to upper die holder 2.This just makes
It obtains rack gear support 11 also to move up, so that rack gear 12 is rotated with moving gear 23.Gear 23 is by the second supporting element 22 and first
Support member 21 limits movement, so, because of the relationship being threadedly coupled, screw rod 41 will be made to occur when it rotates
It is traversing, such that the first ejector half core 4 is driven to be moved in the case where the track of sliding slot 25 limits, moved towards its operating position
It is dynamic.Meanwhile 33 breakpoint of electromagnet no longer generates magnetic field force, thus can not generate magnetic field force to permanent magnet 71.Elastic rod 7 at this time
It will restore original form, thus allow the second ejector half core 5 to move, reach its operating position.At this point, the present apparatus is completed
Preparation, can carry out injecting.The cylinder protruding portion 51 of second ejector half core 5 can act on plastic melt 6, so that producing
The medial surface of product forms the side recess feature of all round closure.First ejector half core 4 and the second ejector half core 5 together, allow for production
Product includes that all round closure, both sides exist simultaneously side recess feature with side.
The present apparatus injects plastic melt 6 after assembling, from injection port 24, carries out injection molding work.
The present apparatus is after completing to be molded work, and upper die holder 2 and lower die holder 1 are away from one another, and lower die holder 1 moves down, this is just
So that rack gear support 11 also moves down, so that rack gear 12 is rotated with moving gear 23.Gear 23 is by the second supporting element 22 and first
Supporting element 21 limits movement, so, because of the relationship being threadedly coupled, screw rod 41 will be made to send out when it rotates
Life is traversing, such that the first ejector half core 4 is driven to move in the case where the track of sliding slot 25 limits.
After completing to be molded work, the second internal ejector half core 5 is also required to be detached from operating position the present apparatus.At this point, opening
The electricity of electromagnet 33 makes it generate powerful magnetic force and attracts permanent magnet 71.Under this powerful magneticaction, elastic rod 7 is sent out
Bending has been given birth to, to drive the second ejector half core 5 mobile, has disengaged it from operating position.In the first ejector half core 4 and the second ejector half core
5 are detached from after operating position, it will be able to take out the product of injection molding.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
Subject to, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that each fall within of the invention
Protection scope.
A kind of injection mold with core-pulling mechanism of the invention, using simply dexterously pulled core structure, substitution are existing tiltedly
The structure of guide colume type to reduce production difficulty, and is able to produce that have with side include that all round closure, two avris are recessed
Feature product.
Claims (4)
1. a kind of injection mold with core-pulling mechanism, including upper die holder (2) and lower die holder (1), the upper die holder (2) are provided with recessed
Mould (26), the lower die holder (1) are provided with punch-pin (3), it is characterised in that: slide between the upper die holder (2) and lower die holder (1)
It is provided with the first ejector half core (4), the upper die holder (2) is provided with the first supporting element (21) and the second supporting element (22), and described
One ejector half core (4) is connected with screw rod (41), and the screw rod (41) passes through first supporting element (21) and the second supporting element (22),
It is arranged with gear (23) on the screw rod (41) and the gear (23) is located at first supporting element (21) and the second supporting element
(22) between, lower die holder (1) side wall is provided with rack gear support (11), and the rack gear support (11) is provided with rack gear (12),
The rack gear (12) cooperates the gear (23) to be engaged work, is provided with mandrel cavity (31), the type in the punch-pin (3)
Setting is connected with elastic rod (7), the bullet between the second ejector half core (5) there are two the second ejector half core (5) in core cavity (31)
Property bar (7) is in bending state and pushing away two the second ejector half cores (5) mutually withstands on it on mandrel cavity (31) inner wall, described
Elastic rod (7) center position is provided with permanent magnet (71), mandrel cavity (31) bottom be provided with after energization can attract it is described
The close electromagnet (33) of permanent magnet (71), the electromagnet (33) cooperate permanent magnet (71) work so that elastic rod (7)
Further bending occurs.
2. a kind of injection mold with core-pulling mechanism according to claim 1, it is characterised in that: the upper die holder (2) sets
It is equipped with sliding slot (25), is provided with guide post (42) on the first ejector half core (4), the guide post (42) is in the sliding slot (25)
Interior activity.
3. a kind of injection mold with core-pulling mechanism according to claim 1, it is characterised in that: second supporting element
(22) towards being provided with ball (221) on the side wall of the gear (23), ball is also equipped on first supporting element (21).
4. a kind of injection mold with core-pulling mechanism according to claim 1, it is characterised in that: the second ejector half core
(5) tail end is provided with connection terminal (52), and the end of the elastic rod (7) is rotatablely connected on the connection terminal (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956619.9A CN106426813B (en) | 2016-10-27 | 2016-10-27 | A kind of injection mold with core-pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956619.9A CN106426813B (en) | 2016-10-27 | 2016-10-27 | A kind of injection mold with core-pulling mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106426813A CN106426813A (en) | 2017-02-22 |
| CN106426813B true CN106426813B (en) | 2019-02-22 |
Family
ID=58179357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610956619.9A Active CN106426813B (en) | 2016-10-27 | 2016-10-27 | A kind of injection mold with core-pulling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106426813B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605824A (en) * | 2018-06-15 | 2019-12-24 | 浙江工商职业技术学院 | Injection mold with secondary slider mechanism of loosing core |
| CN113815196B (en) * | 2021-08-20 | 2024-09-17 | 深圳市成瀚科技有限公司 | Injection mold core pulling mechanism |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538612A (en) * | 2015-11-09 | 2016-05-04 | 宁波市环英汽配有限公司 | Die used for side core pulling |
-
2016
- 2016-10-27 CN CN201610956619.9A patent/CN106426813B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538612A (en) * | 2015-11-09 | 2016-05-04 | 宁波市环英汽配有限公司 | Die used for side core pulling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106426813A (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106564168B (en) | A kind of injection mold with sliding block core-pulling mechanism | |
| CN106426813B (en) | A kind of injection mold with core-pulling mechanism | |
| CN103817882B (en) | Bottle embryo takes out and cooling system | |
| CN112356394A (en) | Plastic mold capable of quickly demolding product | |
| CN102320108A (en) | Precision mould for main component of toner cartridge | |
| CN205202041U (en) | Bullet top two push pedal quadratic terms of formula go out mould | |
| CN219903184U (en) | Injection mold | |
| CN201376327Y (en) | Ejector and die holder | |
| CN203254618U (en) | Cylinder core pulling injection mold | |
| CN203409189U (en) | Sand mould forming device | |
| CN208084872U (en) | It can be used for the mold and Novel injection mold of inclined-plane injection molding | |
| CN113043541A (en) | Anti-sticking inclined ejection structure of injection mold | |
| CN202388722U (en) | Injection mold capable of automatically removing nozzle | |
| CN202781598U (en) | Double-mold synchronous injection molding machine | |
| CN106079269B (en) | A kind of injection mold | |
| CN210634021U (en) | Novel injection mold with take off flitch | |
| CN203077562U (en) | Side core pulling mould of fine needle insert | |
| CN202952478U (en) | Novel precise plastic mold | |
| CN209191235U (en) | A kind of mold that multi-direction core pulling can be achieved | |
| CN209176107U (en) | A kind of energy conservation injection mold | |
| CN202985987U (en) | Slide block retreating device | |
| CN219926760U (en) | Wall-hanging air compressor machine dustcoat forming device | |
| CN202088411U (en) | Mold stripping mechanism | |
| CN203973905U (en) | Foaming mould that can one-shot forming multi-density product | |
| CN218429723U (en) | Secondary ejection inclined core pulling device for plastic mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221221 Address after: 315000 floor 1, building 67, No. 298, Jinshan Road, Jiangbei District, Ningbo City, Zhejiang Province Patentee after: Ningbo Yuhong Zhengxin Intelligent Technology Co.,Ltd. Address before: 315176 Zhejiang industrial and Commercial Vocational and technical college, Xuejia South Road, Gulin Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: ZHEJIANG BUSINESS TECHNOLOGY INSTITUTE |