CN103600472A - Inclined core-pulling mechanism of injection mould spring sliding block - Google Patents
Inclined core-pulling mechanism of injection mould spring sliding block Download PDFInfo
- Publication number
- CN103600472A CN103600472A CN201310588358.6A CN201310588358A CN103600472A CN 103600472 A CN103600472 A CN 103600472A CN 201310588358 A CN201310588358 A CN 201310588358A CN 103600472 A CN103600472 A CN 103600472A
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- China
- Prior art keywords
- core
- spring
- groove
- gripper shoe
- pulling mechanism
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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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- 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
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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 inclined core-pulling mechanism of an injection mould spring sliding block. The inclined core-pulling mechanism comprises upper and lower compound plates, wherein a positioning ring and a sprue bushing are arranged in the upper compound plate; a cavity is arranged below the upper compound plate, a perforation is formed in the lower compound plate, and a limiting pin and mould feet are arranged on the lower compound plate; the mould feet are provided with upper and lower thimble plates, a push rod of an injection machine passes through the perforation so as to contact with the lower thimble plate, a thimble is arranged between the upper and lower thimble plates, a core is arranged on a supporting plate arranged on the mould feet, and a plastic piece is arranged between the core and the cavity; an inclined hole is formed in the plastic piece; the inclined core-pulling mechanism of an injection mould spring sliding block is characterized in that an inclined loose core groove and a spring groove are formed in the core, an inclined loose core is arranged in the inclined loose core groove, one end of the inclined loose core is provided with a stopper, and the outer wall of the inclined loose core is provided with an inclined loose core spring; one end of the inclined loose core spring is contacted with the bottom of the inclined loose core groove, the other end of the inclined loose core spring is contacted with the stopper, the supporting plate is internally provided with a tapered wedge, and the top of the tapered wedge is contacted with the stopper; the spring groove is internally provided with a spacing spring and a spacing pull nail, one end of the spacing pull nail is contacted with the top of the core, and the other end of the spacing pull nail passes through the core so as to be fixed with the supporting plate.
Description
Technical field
The present invention relates to injection mold, particularly relate to injection mold spring sliding block inclined to core-pulling mechanism.
Background technology
Injection mold to working of plastics injection mo(u)lding after, if have inclined hole on working of plastics, prior art is to adopt push rod directly working of plastics to be ejected straight up, forced stripper mechanism, owing to being inclined hole, if the direction that working of plastics is deviate from is not consistent with the direction that inclined hole tilts, working of plastics is easily out of shape, draws white, damaged in strong de-process, even causes product rejection.Also having a kind of is that oil cylinder is installed in core, after die sinking, oil cylinder first drives tiltedly to loose core and slides and loose core to the inside, then by push rod, working of plastics is ejected, the shortcoming that this structure exists is: oil cylinder volume is large, is arranged on core inside, and whole injection mold volume is increased, improved the manufacturing cost of whole injection mold, and oil cylinder is arranged on core inside, cause the cooling water channel of core inside that trouble is set, increase the manufacture difficulty of whole injection mold.
Summary of the invention
The object of the invention is the shortcoming existing in order to overcome prior art, a kind of raising working of plastics yield rate is provided, can guarantee the formed precision of inclined hole, the injection mold spring sliding block inclined that assurance working of plastics can be deviate from is smoothly to core-pulling mechanism.
Injection mold spring sliding block inclined of the present invention to the technical scheme of core-pulling mechanism is: comprise upper compound plate and lower compound plate, centring ring and gate bush are installed in upper compound plate, upper compound plate has die cavity, in lower compound plate, have perforation, on lower compound plate, be equipped with spacer pin and mould pin, spacer pin between mould pin is provided with ejector retainner plate and lower ejector retainner plate, injector push rod contacts with below lower ejector retainner plate through perforation, on, between lower ejector retainner plate, thimble is installed, on mould pin, be provided with gripper shoe, gripper shoe is provided with core, the working of plastics that has injection mo(u)lding between core and die cavity, on working of plastics, have inclined hole, it is characterized in that: in described core, have tiltedly loose core groove and spring groove, in the groove of tiltedly loosing core, be provided with tiltedly and loose core, tiltedly loose core one and have block, at the outer wall of tiltedly loosing core, be provided with the spring of tiltedly loosing core, the spring one end of tiltedly loosing core contacts with the trench bottom of tiltedly loosing core, the other end contacts with block, wedge is installed in gripper shoe, above wedge, contact with block, in spring groove, be provided with spacing spring and spacing blind rivet, one of spacing blind rivet is shaped with the head of a nail, the head of a nail with above core, contact, other end fixes through core and gripper shoe.
The invention discloses a kind of injection mold spring sliding block inclined to core-pulling mechanism, after working of plastics injection mo(u)lding, the oil cylinder that drives lower compound plate to open mould assembling action unclamps, spacing spring promotes gripper shoe and moves backward under the effect of restoring force, mould is first opened from core and gripper shoe, when opening between core and gripper shoe, gripper shoe drives wedge to move backward, the spring of tiltedly loosing core of tiltedly loosing core in groove promotes block and moves backward along the groove of tiltedly loosing core under the effect of restoring force, block drives tiltedly looses core and moves backward, the direction of tiltedly loosing core along working of plastics inclined hole is loosed core, when driving the head of a nail on spacing blind rivet, gripper shoe moves to backward when contacting above core, gripper shoe stops moving backward, this at present compound plate band dynamic model pin move backward, mould tape is moved gripper shoe, on, lower ejector retainner plate, core and working of plastics move simultaneously backward, mould is opened from core and die cavity, when moving to backward the position of injector push rod, injector push rod withstands lower ejector retainner plate through perforation and stops mobile, lower ejector retainner plate withstands ejector retainner plate and thimble stops mobile, thimble is by working of plastics ejection device.This programme injection mold spring sliding block inclined is to core-pulling mechanism, employing is first opened from core and gripper shoe when mould die sinking, wedge is exited backward a bit of, by the spring of tiltedly loosing core, driven tiltedly to loose core first to loose core and exit the inclined hole of working of plastics, then mould die sinking ejects working of plastics, the direction of loosing core of tiltedly loosing core is consistent with inclined hole incline direction, simple in structure, reliable in action, the formed precision of assurance inclined hole, improve working of plastics yield rate, assurance working of plastics can be deviate from smoothly.
Injection mold spring sliding block inclined of the present invention, to core-pulling mechanism, is shaped with cambered surface projection under described block, cambered surface projection with above wedge, contact.There is cambered surface projection to contact with wedge, reduced frictional contact surface, reduced wearing and tearing, improved service life.In described die cavity, have pilot hole, be provided with guide pin bushing in pilot hole, be provided with guide pillar in gripper shoe, guide pillar matches with guide pin bushing.Guide pillar coordinates with pilot hole, and guiding accurately, has had guide pin bushing to improve service life.
Accompanying drawing explanation
Fig. 1 is that injection mold spring sliding block inclined is to core-pulling mechanism matched moulds status architecture schematic diagram;
Fig. 2 is that injection mold spring sliding block inclined is to core-pulling mechanism from core with gripper shoe open mode structural representation;
Fig. 3 is that injection mold spring sliding block inclined is to core-pulling mechanism die opening state structural representation.
The specific embodiment
The present invention relates to a kind of injection mold spring sliding block inclined to core-pulling mechanism, as shown in Fig. 1-Fig. 3, comprise compound plate 1 and lower compound plate 2, centring ring 3 and gate bush 4 are installed in upper compound plate, upper compound plate has die cavity 5, in lower compound plate 2, have perforation 6, on lower compound plate, be equipped with spacer pin 7 and mould pin 8, spacer pin between mould pin is provided with ejector retainner plate 9 and lower ejector retainner plate 10, injector push rod 11 contacts with lower ejector retainner plate 10 below through perforation 6, on, between lower ejector retainner plate, thimble 12 is installed, on mould pin, be provided with gripper shoe 13, gripper shoe is provided with core 14, the working of plastics 15 that has injection mo(u)lding between core and die cavity 5, on working of plastics, have inclined hole 16, it is characterized in that: in described core 14, have tiltedly loose core groove 17 and spring groove 18, in the groove of tiltedly loosing core, be provided with and tiltedly loose core 19, tiltedly loose core one and have block 20, at the outer wall of tiltedly loosing core, be provided with the spring 21 of tiltedly loosing core, touch with groove 17 bottom connections of tiltedly loosing core the spring one end of tiltedly loosing core, the other end contacts with block 20, wedge 22 is installed in gripper shoe 13, above wedge, contact with block 20, in spring groove 18, be provided with spacing spring 23 and spacing blind rivet 24, one of spacing blind rivet is shaped with the head of a nail 25, the head of a nail with above core, contact, other end fixes through core and gripper shoe 13.After working of plastics 15 injection mo(u)ldings, the oil cylinder that drives lower compound plate 2 to open mould assembling action unclamps, spacing spring 23 promotes gripper shoe 13 and moves backward under the effect of restoring force, mould is first opened from core 14 and gripper shoe 13, when opening between core and gripper shoe, gripper shoe drives wedge 22 to move backward, the spring 21 of tiltedly loosing core of tiltedly loosing core in groove 17 promotes block 20 and moves backward along the groove of tiltedly loosing core under the effect of restoring force, block drives tiltedly to loose core and 19 moves backward, the direction of tiltedly loosing core along working of plastics 15 inclined holes 16 is loosed core, when driving the head of a nail 25 on spacing blind rivets 24, gripper shoe 13 moves to backward when contacting above core 14, gripper shoe 13 stops moving backward, this at present compound plate 2 band dynamic model pin 8 move backward, mould tape is moved gripper shoe, on, lower ejector retainner plate, core 14 and working of plastics 15 move simultaneously backward, mould is opened from core and die cavity 5, when moving to backward the position of injector push rod 11, injector push rod withstands lower ejector retainner plate 10 through perforation 6 and stops mobile, lower ejector retainner plate withstands ejector retainner plate 9 and thimble 12 stops mobile, thimble is by working of plastics 15 ejection devices.This programme injection mold spring sliding block inclined is to core-pulling mechanism, employing is first opened from core 14 and gripper shoe 13 when mould die sinking, wedge 22 is exited backward a bit of, by the spring 21 of tiltedly loosing core, driven tiltedly to loose core and 19 first loose core and exit the inclined hole 16 of working of plastics, then mould die sinking ejects working of plastics 15,19 the direction of loosing core of tiltedly loosing core is consistent with inclined hole incline direction, simple in structure, reliable in action, the formed precision of assurance inclined hole 16, improve working of plastics yield rate, assurance working of plastics can be deviate from smoothly.Described block is shaped with cambered surface projection 26 20 times, and cambered surface projection contacts above with wedge 22.There is cambered surface projection 26 to contact with wedge 22, reduced frictional contact surface, reduced wearing and tearing, improved service life.In described die cavity 5, have pilot hole 27, be provided with guide pin bushing 28 in pilot hole, be provided with guide pillar 29 in gripper shoe 13, guide pillar matches with guide pin bushing.Guide pillar 29 coordinates with pilot hole 27, and guiding accurately, has had guide pin bushing 28 to improve service life.
Claims (3)
1. injection mold spring sliding block inclined is to core-pulling mechanism, comprise compound plate (1) and lower compound plate (2), centring ring (3) and gate bush (4) are installed in upper compound plate, upper compound plate has die cavity (5), in lower compound plate (2), have perforation (6), on lower compound plate, be equipped with spacer pin (7) and mould pin (8), spacer pin between mould pin is provided with ejector retainner plate (9) and lower ejector retainner plate (10), injector push rod (11) contacts with lower ejector retainner plate (10) below through perforation (6), on, thimble (12) is installed between lower ejector retainner plate, on mould pin, be provided with gripper shoe (13), gripper shoe is provided with core (14), the working of plastics (15) that has injection mo(u)lding between core and die cavity (5), on working of plastics, have inclined hole (16), it is characterized in that: in described core (14), have the groove of tiltedly loosing core (17) and spring groove (18), in the groove of tiltedly loosing core, be provided with tiltedly loose core (19), tiltedly loose core one and have block (20), at the outer wall of tiltedly loosing core, be provided with the spring of tiltedly loosing core (21), touch with groove (17) bottom connection of tiltedly loosing core the spring one end of tiltedly loosing core, the other end contacts with block (20), wedge (22) is installed in gripper shoe (13), above wedge, contact with block (20), in spring groove (18), be provided with spacing spring (23) and spacing blind rivet (24), one of spacing blind rivet is shaped with the head of a nail (25), the head of a nail with above core, contact, other end fixes through core and gripper shoe (13).
2. injection mold spring sliding block inclined as claimed in claim 1, to core-pulling mechanism, is characterized in that: under described block (20), be shaped with cambered surface projection (26), cambered surface projection (26) contacts above with wedge (22).
3. injection mold spring sliding block inclined as claimed in claim 1 is to core-pulling mechanism, it is characterized in that: in described die cavity (5), have pilot hole (27), in pilot hole, be provided with guide pin bushing (28), be provided with guide pillar (29) in gripper shoe (13), guide pillar matches with guide pin bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588358.6A CN103600472B (en) | 2013-11-21 | 2013-11-21 | Injection mold spring sliding block inclined is to core-pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588358.6A CN103600472B (en) | 2013-11-21 | 2013-11-21 | Injection mold spring sliding block inclined is to core-pulling mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103600472A true CN103600472A (en) | 2014-02-26 |
| CN103600472B CN103600472B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310588358.6A Active CN103600472B (en) | 2013-11-21 | 2013-11-21 | Injection mold spring sliding block inclined is to core-pulling mechanism |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129037A (en) * | 2014-05-13 | 2014-11-05 | 张振岳 | Automobile headlight light guide strip injection mold and injection molding method |
| CN108705062A (en) * | 2018-06-02 | 2018-10-26 | 斯达康（福建）五金科技有限公司 | Take out die casting in side |
| CN110450357A (en) * | 2019-07-31 | 2019-11-15 | 浙江凯华模具有限公司 | Injection mould slanted spring assembly long range side core-pulling mechanism |
| CN111703035A (en) * | 2020-06-17 | 2020-09-25 | 鲁琳 | Ejection device of injection mold |
| CN113103523A (en) * | 2020-10-11 | 2021-07-13 | 罗文俊 | Injection mold for molding change-over switch connecting piece |
| CN113211741A (en) * | 2021-04-29 | 2021-08-06 | 浙江凯华模具有限公司 | Inside two bullet needles of car bumper injection mold take off back-off mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58224731A (en) * | 1982-06-23 | 1983-12-27 | Hitachi Ltd | Plastic mold device |
| US20070243286A1 (en) * | 2006-04-18 | 2007-10-18 | Cheng Uei Precision Industry Co., Ltd. | Angular ejector mechanism and injection mold with the same |
| CN202826289U (en) * | 2012-09-19 | 2013-03-27 | 台州市凯华塑业有限公司 | Injection mold spring outward core-pulling mechanism |
| CN203046170U (en) * | 2013-01-11 | 2013-07-10 | 台州市凯华塑业有限公司 | Mechanism of wedge slide block of injection mold for resetting thimble in advance |
| CN203622841U (en) * | 2013-11-21 | 2014-06-04 | 浙江凯华模具有限公司 | Slant core-pulling mechanism of injection mould spring sliding block |
-
2013
- 2013-11-21 CN CN201310588358.6A patent/CN103600472B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58224731A (en) * | 1982-06-23 | 1983-12-27 | Hitachi Ltd | Plastic mold device |
| US20070243286A1 (en) * | 2006-04-18 | 2007-10-18 | Cheng Uei Precision Industry Co., Ltd. | Angular ejector mechanism and injection mold with the same |
| CN202826289U (en) * | 2012-09-19 | 2013-03-27 | 台州市凯华塑业有限公司 | Injection mold spring outward core-pulling mechanism |
| CN203046170U (en) * | 2013-01-11 | 2013-07-10 | 台州市凯华塑业有限公司 | Mechanism of wedge slide block of injection mold for resetting thimble in advance |
| CN203622841U (en) * | 2013-11-21 | 2014-06-04 | 浙江凯华模具有限公司 | Slant core-pulling mechanism of injection mould spring sliding block |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129037A (en) * | 2014-05-13 | 2014-11-05 | 张振岳 | Automobile headlight light guide strip injection mold and injection molding method |
| CN104129037B (en) * | 2014-05-13 | 2016-05-25 | 张振岳 | Automobile headlamp light-strip injection mould and injection moulding process |
| CN108705062A (en) * | 2018-06-02 | 2018-10-26 | 斯达康（福建）五金科技有限公司 | Take out die casting in side |
| CN110450357A (en) * | 2019-07-31 | 2019-11-15 | 浙江凯华模具有限公司 | Injection mould slanted spring assembly long range side core-pulling mechanism |
| CN111703035A (en) * | 2020-06-17 | 2020-09-25 | 鲁琳 | Ejection device of injection mold |
| CN111703035B (en) * | 2020-06-17 | 2022-06-07 | 东莞市江霖五金实业有限公司 | Ejection device of injection mold |
| CN113103523A (en) * | 2020-10-11 | 2021-07-13 | 罗文俊 | Injection mold for molding change-over switch connecting piece |
| CN113211741A (en) * | 2021-04-29 | 2021-08-06 | 浙江凯华模具有限公司 | Inside two bullet needles of car bumper injection mold take off back-off mechanism |
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| Publication number | Publication date |
|---|---|
| CN103600472B (en) | 2015-09-02 |
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Denomination of invention: Oblique core pulling mechanism of spring slider of injection mold Effective date of registration: 20220704 Granted publication date: 20150902 Pledgee: Agricultural Bank of China Limited Taizhou Economic Development Zone sub branch Pledgor: ZHEJIANG KAIHUA MOULDS Co.,Ltd. Registration number: Y2022330001226 |