CN104875341A - 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
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- CN104875341A CN104875341A CN201510291091.3A CN201510291091A CN104875341A CN 104875341 A CN104875341 A CN 104875341A CN 201510291091 A CN201510291091 A CN 201510291091A CN 104875341 A CN104875341 A CN 104875341A
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- China
- Prior art keywords
- core
- briquetting
- push rod
- side opening
- injection mold
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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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 core-pulling mechanism for injection mold of applicable sidewall distribution porous product.
Background technology
In the manufacturing process of sidewall porous product, because stripping direction is vertical with the direction vector in hole, therefore before product ejects by ejection system, first the core of forming hole on sidewall should be extracted out, need to arrange slide block (outside product) or core-pulling mechanism (inside product) in mould structure, if hole number is more, then core-pulling mechanism structure is more complicated, need number of parts more, arrange that these parts make template size strengthen, and workpiece size uniformity is had higher requirements, need very high accuracy.Simultaneously because needs are slotted correspondence position many places in template or on core, there is considerable influence to the intensity of template or core, rigidity.Assembling, debugging work load is larger.
Summary of the invention
The present invention, mainly for solving above-mentioned Problems existing, provides the core-pulling mechanism for injection mold of a kind of applicable sidewall distribution porous product, is applicable to sidewall and distributes the part forming die design in multiple hole.
For solving above-mentioned Problems existing, the technical solution adopted in the present invention is: a kind of core-pulling mechanism for injection mold of applicable sidewall distribution porous product, product inner wall surface is provided with core, the inner wall surface of core is along the circumferential direction evenly provided with multiple side opening core, described side opening core is provided with sphere near the one end at product center, described core-pulling mechanism for injection mold is arranged on the inside of described core, comprise briquetting of loosing core, pull bar and reset push rod, described briquetting of loosing core along the circumferential direction evenly is provided with multiple briquetting on the end face of one end of side opening core; Pull bar one end is fixedly installed on looses core on briquetting, and the other end is provided with back-up ring; Reset top stem casing is located at pull bar outside, and reset push rod offers groove I vertically away from the one end of briquetting of loosing core, and described back-up ring is positioned at this groove I; Make the sphere-contact of itself and side opening core by moving reset push rod to side, promote side opening core along product radial motion with the height making it stretch out a wall thickness from core, make product sidewall mold corresponding hole; It is made to be separated with side opening core by moving reset push rod to opposite side, described groove I one end is provided with the step surface for blocking back-up ring, under extraction reset push rod state, step surface blocks back-up ring to drive pull bar and briquetting of loosing core moves in company with reset push rod, briquetting is provided with by the groove of side opening core and the inclined-plane I caved inward that matches with sphere, described inclined-plane I compresses the sphere of side opening core, side opening core is moved to product center position, deviate from from product hole, realize side core-pulling.
Further, the below described briquetting of loosing core being positioned at briquetting is provided with the locating piece of respective amount, in order to position reset push rod.
Further, described reset push rod offers inclined-plane II near edge, one end circumference of briquetting of loosing core.
Further, described briquetting center of loosing core offers groove II, and the projection that described pull bar one end is provided with and this groove II closely cooperate.
Further, described back-up ring is fixedly installed on one end of pull bar by screw.
The beneficial effect that the present invention brings for: the core-pulling mechanism for injection mold structure of the applicable sidewall distribution porous product designed by this programme is simple, and easy to use, required part is less, compared with core-pulling mechanism in the past, saves the time that the process of loosing core spends.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is that the C-C of Fig. 1 is to sectional view.
Fig. 3 is the structural representation of briquetting of loosing core.
Mark in figure: 1, product, 2, core, 3, briquetting of loosing core, 4, side opening core, 5, reset push rod, 6, pull bar, 7, back-up ring, 8, step surface, 9, briquetting, 901, inclined-plane I, 10, locating piece, 11, inclined-plane II.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As shown in the figure, a kind of core-pulling mechanism for injection mold of applicable sidewall distribution porous product, product 1 inner wall surface is provided with core 2, the inner wall surface of core 2 is along the circumferential direction evenly provided with multiple side opening core 4, described side opening core 4 is provided with sphere 401 near the one end at product center, described core-pulling mechanism for injection mold is arranged on the inside of described core 2, comprise briquetting 3 of loosing core, pull bar 6 and reset push rod 5, described briquetting 3 of loosing core along the circumferential direction evenly is provided with multiple briquetting 9 on the end face of one end of side opening core, pull bar 6 one end is fixedly installed on looses core on briquetting 3, and 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 offers groove I vertically away from the one end of briquetting 3 of loosing core, and described back-up ring 7 is positioned at this groove I, during matched moulds, it is made to contact with the sphere 401 of side opening core 4 by moving reset push rod 5 to side, reset push rod 5 promotes side opening core 4 along product 1 radial motion with the height making it stretch out a wall thickness from core 2, become the side opening core when injection mo(u)lding, make product 1 sidewall mold corresponding hole, during the demoulding, by moving reset push rod 5 to opposite side, reset push rod 5 is separated with side opening core 4, described groove I one end is provided with the step surface 8 for blocking back-up ring 7, under extraction reset push rod 5 state, step surface 8 blocks back-up ring 7 to drive pull bar 6 and briquetting 3 of loosing core moves in company with reset push rod 5, briquetting 9 is provided with by the groove of side opening core 4 and the inclined-plane I 901 caved inward that matches with sphere 401, described inclined-plane I 901 compresses the sphere 401 of side opening core 4, side opening core 4 is moved to product center position, deviate from from product hole, realize side core-pulling.
The below described briquetting 3 of loosing core being positioned at briquetting is provided with the locating piece 10 of respective amount, in order to position reset push rod 5.
Described reset push rod 5 offers inclined-plane II 11 near edge, one end circumference of briquetting 3 of loosing core.
Described briquetting 3 center of loosing core offers groove II, and the projection that described pull bar 6 one end is provided with and this groove II closely cooperate.
Described back-up ring 7 is fixedly installed on one end of pull bar 6 by screw.
Claims (5)
1. the core-pulling mechanism for injection mold of an applicable sidewall distribution porous product, product (1) inner wall surface is provided with core (2), the inner wall surface of core (2) is along the circumferential direction evenly provided with multiple side opening core (4), described side opening core (4) is provided with sphere (401) near the one end at product center, described core-pulling mechanism for injection mold is arranged on the inside of described core (2), it is characterized in that: comprise briquetting of loosing core (3), pull bar (6) and reset push rod (5), described briquetting of loosing core (3) is along the circumferential direction evenly provided with multiple briquetting (9) on the end face of one end of side opening core, pull bar (6) one end is fixedly installed on briquetting of loosing core (3), and 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) offers groove I vertically away from one end of briquetting of loosing core (3), and described back-up ring (7) is positioned at this groove I, it is made to contact with the sphere (401) of side opening core (4) by moving reset push rod (5) to side, promotion side opening core (4) with the height making it stretch out a wall thickness from core (2), makes product (1) sidewall mold corresponding hole along product (1) radial motion, it is made to be separated with side opening core (4) by moving reset push rod (5) to opposite side, described groove I one end is provided with the step surface (8) for blocking back-up ring (7), under extraction reset push rod (5) state, step surface (8) blocks back-up ring (7) and moves in company with reset push rod (5) to drive pull bar (6) and briquetting of loosing core (3), briquetting (9) is provided with by the groove of side opening core (4) and the inclined-plane I (901) caved inward that matches with sphere (401), described inclined-plane I (901) compresses the sphere (401) of side opening core (4), side opening core (4) is moved to product center position, deviate from from product hole, realize side core-pulling.
2. the core-pulling mechanism for injection mold of a kind of applicable sidewall distribution porous product according to claim 1, it is characterized in that: the below described briquetting of loosing core (3) being positioned at briquetting is provided with the locating piece (10) of respective amount, in order to position reset push rod (5).
3. the core-pulling mechanism for injection mold of a kind of applicable sidewall distribution porous product according to claim 1, is characterized in that: described reset push rod (5) offers inclined-plane II (11) near edge, one end circumference of briquetting (3) of loosing core.
4. the core-pulling mechanism for injection mold of a kind of applicable sidewall distribution porous product according to claim 1, it is characterized in that: described briquetting of loosing core (3) center offers groove II, the projection that described pull bar (6) one end is provided with and this groove II closely cooperate.
5. the core-pulling mechanism for injection mold of a kind of applicable sidewall distribution porous product according to claim 1, is characterized in that: described back-up ring (7) is fixedly installed on one end of 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 true CN104875341A (en) | 2015-09-02 |
| CN104875341B CN104875341B (en) | 2017-02-01 |
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| 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 |
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| Publication number | Publication date |
|---|---|
| CN104875341B (en) | 2017-02-01 |
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