CN104875341B - Injection mold core-pulling mechanism suitable for workpiece with multiple holes in side wall - Google Patents
Injection mold core-pulling mechanism suitable for workpiece with multiple holes in side wall Download PDFInfo
- Publication number
- CN104875341B CN104875341B CN201510291091.3A CN201510291091A CN104875341B CN 104875341 B CN104875341 B CN 104875341B CN 201510291091 A CN201510291091 A CN 201510291091A CN 104875341 B CN104875341 B CN 104875341B
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- China
- Prior art keywords
- core
- pulling
- push rod
- briquetting
- wall
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- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold core-pulling mechanism suitable for a workpiece with multiple holes in the side wall. A core is arranged on the surface of the inner wall of the workpiece, a plurality of side hole cores are evenly arranged on the surface of the inner wall of the core circumferentially, and a spherical surface is arranged at one end, close to the center of the workpiece, of each side hole core. The injection mold core-pulling mechanism is arranged in the core and comprises a core-pulling press block, a pull rod and a reset ejection rod. A plurality of press blocks are arranged at one end of the core-pulling press block circumferentially. The reset ejection rod is moved towards one side to contact with the spherical surfaces of the side hole cores, the side hole cores are pushed to move radially along the workpiece to extend by a height same as wall thickness from the core, and the corresponding holes are formed in the side wall of the workpiece. The reset ejection rod is moved towards the other side to be separated from the side hole cores, the pull rod and the core-pulling press block move along with the reset ejection rod, the spherical surfaces of the side hole cores are pressed by bevels I arranged on the press blocks, the side hole cores are enabled to move towards the central direction of the workpiece to be separated from the holes of the workpiece, and side core pulling is achieved. The injection mold core-pulling mechanism is simple in structure and convenient to use.
Description
Technical field
The present invention relates to Mold Core-pulling Mechanism, especially relate to a kind of suitable side wall and be distributed the injection mold of porous product take out
Core mechanism.
Background technology
In the manufacturing process of side wall porous product, because stripping direction is vertical with the direction vector in hole, therefore in ejection
Before product is ejected by system, first the core of forming hole on the wall of side should be extracted out, need to arrange slide block (system in terms of mould structure
Outside part) or core-pulling mechanism (inside product), if hole number is more, core-pulling mechanism structure is more complicated, needs number of parts
More, arrange that these parts make template size increase, and workpiece size concordance is had higher requirements, need very high accuracy.With
When due to need in template or on core correspondence position many places fluting, have considerable influence to the intensity of template or core, rigidity.
Assembling, debugging work load are larger.
Content of the invention
The present invention is mainly to solve above-mentioned problem, provides a kind of suitable side wall to be distributed the injection mould of porous product
Tool core-pulling mechanism is it is adaptable to side wall is distributed the part forming die design in multiple holes.
For solving above-mentioned problem, the technical solution adopted in the present invention is: a kind of suitable side wall distribution porous system
The core-pulling mechanism for injection mold of part, is provided with core in product inner wall surface, and the inner wall surface of core along the circumferential direction uniformly sets
There are multiple side opening cores, described side opening core is provided with sphere near the one end at product center, described injection mold tube bundle extracting machine
Structure is arranged on the inside of described core, and including core pulling briquetting, pull bar and reset push rod, described core pulling briquetting is near side opening core
The end face of one end on be along the circumferential direction uniformly provided with multiple briquettings；Pull bar one end is fixedly installed on core pulling briquetting, the other end
It is provided with back-up ring；Reset push rod is set in outside pull bar, reset push rod away from core pulling briquetting one end open up vertically fluted,
Described back-up ring is located in this groove；By making the sphere-contact of itself and side opening core to a side shifting reset push rod, promote side
Pass core, along product radial motion so that it stretches out the height of a wall thickness from core, makes product side wall mold corresponding
Hole；By making it separate with side opening core to another side shifting reset push rod, described groove one end is provided with for blocking back-up ring
Step surface, under extracting reset push rod state out, step surface blocks back-up ring to drive pull bar and core pulling briquetting to move in company with reset push rod
Dynamic, briquetting is provided with the groove and the inclined-plane caving inward matching with sphere by side opening core, described inclined-plane pressure
The sphere of tight side opening core, makes side opening core move to product center position, deviates from, realize side core-pulling from product hole.
Further, the lower section that described core pulling briquetting is located at briquetting is provided with the locating piece of respective amount, in order to multiple
Position push rod is positioned.
Further, described reset push rod offers inclined-plane near one end edge circumference of core pulling briquetting.
Further, described core pulling briquetting center opens up the projection that fluted, described pull bar one end is provided with
It is fitted close with this groove.
Further, described back-up ring is fixedly installed on one end of pull bar by screw.
What the present invention was brought has the beneficial effect that the suitable side wall designed by this programme is distributed the injection mold of porous product
Core-pulling mechanism structure is simple, is easy to use, required part is less, compared with conventional core-pulling mechanism, saves core pulling process institute
The time spending.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the c-c of Fig. 1 to sectional view.
Fig. 3 is the structural representation of core pulling briquetting.
In figure labelling: 1, product, 2, core, 3, core pulling briquetting, 4, side opening core, 5, reset push rod, 6, pull bar, 7, gear
Circle, 8, step surface, 9, briquetting, 901, inclined-plane, 10, locating piece, 11, inclined-plane.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
As illustrated, a kind of suitable side wall is distributed the core-pulling mechanism for injection mold of porous product, set in product 1 inner wall surface
It is equipped with core 2, the inner wall surface of core 2 is along the circumferential direction uniformly provided with multiple side opening cores 4, and described side opening core 4 is close
The one end at product center is provided with sphere 401, and described core-pulling mechanism for injection mold is arranged on the inside of described core 2, including taking out
Core briquetting 3, pull bar 6 and reset push rod 5, on described core pulling briquetting 3 end face of one end near side opening core along the circumferential direction
It is uniformly provided with multiple briquettings 9；Pull bar 6 one end is fixedly installed on core pulling briquetting 3, and the other end is provided with back-up ring 7；5 sets of reset push rod
It is located at outside pull bar 6, reset push rod 5 opens up fluted, described back-up ring 7 positioned at this vertically away from one end of core pulling briquetting 3
In groove；During matched moulds, by making it contact with the sphere 401 of side opening core 4 to a side shifting reset push rod 5, reset push rod 5
Promote side opening core 4 along product 1 radial motion so that it stretches out the height of a wall thickness from core 2, become in injection mo(u)lding
When side opening core, make product 1 side wall mold corresponding hole；During the demoulding, multiple by making to another side shifting reset push rod 5
Position push rod 5 is separated with side opening core 4, and described groove one end is provided with the step surface 8 for blocking back-up ring 7, is extracting reset push rod out
Under 5 states, step surface 8 blocks back-up ring 7 to drive pull bar 6 and core pulling briquetting 3 mobile in company with reset push rod 5, and briquetting 9 is provided with logical
Cross the groove of side opening core 4 and the inclined-plane 901 caving inward matching with sphere 401, described inclined-plane 901 compresses side opening
The sphere 401 of core 4, makes side opening core 4 move to product center position, deviates from, realize side core-pulling from product hole.
The lower section being located at briquetting on described core pulling briquetting 3 is provided with the locating piece 10 of respective amount, in order to reset push rod 5
Positioned.
Described reset push rod 5 offers inclined-plane 11 near one end edge circumference of core pulling briquetting 3.
Described core pulling briquetting 3 center opens up projection and this groove that fluted, described pull bar 6 one end is provided with
It is fitted close.
Described back-up ring 7 is fixedly installed on one end of pull bar 6 by screw.
Claims (5)
1. a kind of suitable side wall is distributed the core-pulling mechanism for injection mold of porous product, and product (1) inner wall surface is provided with core
(2), the inner wall surface of core (2) is along the circumferential direction uniformly provided with multiple side opening cores (4), and described side opening core (4) is close
The one end at product center is provided with sphere (401), and described core-pulling mechanism for injection mold is arranged on the inside of described core (2), its
It is characterised by: include core pulling briquetting (3), pull bar (6) and reset push rod (5), described core pulling briquetting (3) is near side opening core
Multiple briquettings (9) are along the circumferential direction uniformly provided with the end face of one end；Pull bar (6) one end is fixedly installed on core pulling briquetting (3),
The other end is provided with back-up ring (7)；It is outside that reset push rod (5) is set in pull bar (6), and reset push rod (5) is away from the one of core pulling briquetting (3)
End opens up fluted, described back-up ring (7) vertically and is located in this groove；By making it to side shifting reset push rod (5)
Contact with the sphere (401) of side opening core (4), promote side opening core (4) along product (1) radial motion so that it is from core (2)
In stretch out the height of a wall thickness, make product (1) side wall mold corresponding hole；By to another side shifting reset push rod
(5) it is made to separate with side opening core (4), described groove one end is provided with the step surface (8) for blocking back-up ring (7), multiple extracting out
Under push rod (5) state of position, step surface (8) blocks back-up ring (7) to drive pull bar (6) and core pulling briquetting (3) in company with reset push rod (5)
Mobile, briquetting (9) is provided with groove and the inclined-plane caving inward matching with sphere (401) by side opening core (4)
(901), described inclined-plane (901) compresses the sphere (401) of side opening core (4), so that side opening core (4) is transported to product center position
Dynamic, deviate from from product hole, realize side core-pulling.
2. a kind of suitable side according to claim 1 wall is distributed the core-pulling mechanism for injection mold of porous product, and its feature exists
In: the upper lower section being located at briquetting of described core pulling briquetting (3) is provided with the locating piece (10) of respective amount, in order to reset push rod
(5) positioned.
3. a kind of suitable side according to claim 1 wall is distributed the core-pulling mechanism for injection mold of porous product, and its feature exists
In: described reset push rod (5) offers inclined-plane (11) near one end edge circumference of core pulling briquetting (3).
4. a kind of suitable side according to claim 1 wall is distributed the core-pulling mechanism for injection mold of porous product, and its feature exists
In: described core pulling briquetting (3) center opens up projection and this groove that fluted, described pull bar (6) one end is provided with
It is fitted close.
5. a kind of suitable side according to claim 1 wall is distributed the core-pulling mechanism for injection mold of porous product, and its feature exists
In: on one end that described back-up ring (7) is fixedly installed on pull bar (6) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510291091.3A CN104875341B (en) | 2015-06-01 | 2015-06-01 | Injection mold core-pulling mechanism suitable for workpiece with multiple holes in side wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510291091.3A CN104875341B (en) | 2015-06-01 | 2015-06-01 | Injection mold core-pulling mechanism suitable for workpiece with multiple holes in side wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104875341A CN104875341A (en) | 2015-09-02 |
| CN104875341B true CN104875341B (en) | 2017-02-01 |
Family
ID=53943141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510291091.3A Expired - Fee Related CN104875341B (en) | 2015-06-01 | 2015-06-01 | Injection mold core-pulling mechanism suitable for workpiece with multiple holes in side wall |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642282A (en) * | 2012-05-14 | 2012-08-22 | 台州市黄岩西诺模具有限公司 | Internal drawing device for injection molding mold of pipe fitting |
| CN202985859U (en) * | 2012-11-09 | 2013-06-12 | 凡嘉科技（无锡）有限公司 | Slide block retreating structure |
| CN203792623U (en) * | 2013-10-18 | 2014-08-27 | 富鼎电子科技(嘉善)有限公司 | Injection mold and core-pulling mechanism thereof |
| CN203957295U (en) * | 2014-07-04 | 2014-11-26 | 宁波双林模具有限公司 | In a kind of petal type, take out mould emptier |
| CN203957294U (en) * | 2014-04-30 | 2014-11-26 | 天津瑞应鑫模具制造有限公司 | A kind of inner core pulling structure |
| CN204687270U (en) * | 2015-06-01 | 2015-10-07 | 洛阳理工学院 | A kind of core-pulling mechanism for injection mold of applicable sidewall distribution porous product |
-
2015
- 2015-06-01 CN CN201510291091.3A patent/CN104875341B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642282A (en) * | 2012-05-14 | 2012-08-22 | 台州市黄岩西诺模具有限公司 | Internal drawing device for injection molding mold of pipe fitting |
| CN202985859U (en) * | 2012-11-09 | 2013-06-12 | 凡嘉科技（无锡）有限公司 | Slide block retreating structure |
| CN203792623U (en) * | 2013-10-18 | 2014-08-27 | 富鼎电子科技(嘉善)有限公司 | Injection mold and core-pulling mechanism thereof |
| CN203957294U (en) * | 2014-04-30 | 2014-11-26 | 天津瑞应鑫模具制造有限公司 | A kind of inner core pulling structure |
| CN203957295U (en) * | 2014-07-04 | 2014-11-26 | 宁波双林模具有限公司 | In a kind of petal type, take out mould emptier |
| CN204687270U (en) * | 2015-06-01 | 2015-10-07 | 洛阳理工学院 | A kind of core-pulling mechanism for injection mold of applicable sidewall distribution porous product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104875341A (en) | 2015-09-02 |
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Granted publication date: 20170201 Termination date: 20170601 |