CN109591263A - A kind of spring core-pulling mechanism of injection molding - Google Patents
A kind of spring core-pulling mechanism of injection molding Download PDFInfo
- Publication number
- CN109591263A CN109591263A CN201811469311.7A CN201811469311A CN109591263A CN 109591263 A CN109591263 A CN 109591263A CN 201811469311 A CN201811469311 A CN 201811469311A CN 109591263 A CN109591263 A CN 109591263A
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- CN
- China
- Prior art keywords
- core pulling
- injection molding
- core
- oblique
- pulling
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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
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- 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
- B29C45/2602—Mould construction elements
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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 a kind of spring core-pulling mechanisms of injection molding, it includes being arranged in the sliding block square groove of injection molding dynamic model upper surface in the core pulling to setting, it is being in that circular hole is symmetrically offered to the core pulling two sides of setting, return spring is equipped in it, it is being equipped with cone locking slot in the core pulling upper surface middle part of setting, cone locking slot two sides are equipped with oblique groove；Latch segment is equipped in injection molding cover half lower surface, latch segment lower end is equipped with cone locking head compatible with cone locking slot and oblique groove and oblique protrusion, the design increases oblique groove in core pulling, increases the matched oblique protrusion used on latch segment, in die sinking, oblique protrusion can be to one, the inclined-plane lifting force of oblique groove, and then core pulling can be assisted, guarantee that return spring can also normally complete core pulling under failure state, its structure is simple, it is convenient to use, it is economical and practical, it is practical reliable, there is good promotion prospect.
Description
Technical field
The present invention relates to a kind of spring core-pulling mechanisms of injection molding, belong to injection molding field.
Background technique
In plastic process of injection molding, in order to improve plastic injection moulding production efficiency, the side of a multi-cavity mold is generallyd use
Formula production, wherein the injection port of injection molding between longer runner and each chamber by being connected to, and die space is big, die cost
Height, after injection moulding, flow channel section can generate very long one section of waste material, cause material serious waste.
Currently, in the case of multi-cavity and short core pulling distance, the injection molding of spring core pulling is generallyd use, when molding, take out
Core inclined-plane stress is mobile, and spring stress is in compressive state, and runner shortens, and can save flow channel material, reduces die space, section
About die cost；When die sinking, core pulling ramp effect power is withdrawn from, and spring acts on core pulling movement in elastic force, realizes that plastic part falls
Detain core pulling.But easily there is spring failure, the stuck equal quality risks of core pulling.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of this spring core-pulling mechanisms of injection molding, can overcome existing
The deficiency of technology.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions: a kind of spring of injection molding
Core-pulling mechanism, it is arranged in multiple injecting cavities of injection molding, and the injection port of injection molding between runner and each chamber by connecting
Logical, it includes being arranged in the sliding block square groove of injection molding dynamic model upper surface in the core pulling to setting, in the core pulling to setting
Two sides symmetrically offer circular hole, interior to be equipped with return spring, are being equipped with cone locking in the core pulling upper surface middle part of setting
Slot is equipped with latch segment in injection molding cover half lower surface, and latch segment lower end is equipped with cone locking compatible with cone locking slot
Head, the cone locking head, which is inserted into cone locking slot, withholds locking molding；And it is equipped with and matches in the core pulling and latch segment
The drafting mechanism used is closed, the drafting mechanism is used for auxiliary mould-opening core pulling.
Aforementioned drafting mechanism includes the oblique groove that core pulling upper surface, cone locking slot two sides is arranged in, under latch segment
End is equipped with and the matched oblique protrusion of oblique groove；In oblique protrusion insertion oblique groove described in molding state；Die opening state institute
Stating oblique protrusion, diagonally groove is extracted.
Aforementioned oblique groove and oblique protrusion are compatible U-shaped structure, and the U-shaped structure is at least to incline on one side
Tiltedly setting, inclined direction are that direction is drawn close in two core pullings.
The aforementioned core pulling bottom in setting is equipped with the guiding mechanism for core pulling slide-and-guide.
Aforementioned guiding mechanism includes the guider screw being arranged in the middle part of sliding block square groove, and the guider screw is round end spiral shell
Nail, described in the groove that round end therewith matches is offered to the core pulling bottom surface of setting, the round end of cheese head screw is placed in groove,
Core pulling slides limit along the round end of cheese head screw.
Compared with the prior art, the invention discloses a kind of spring core-pulling mechanisms of injection molding, it includes that setting is being infused
It penetrates in the core pulling to setting in the sliding block square groove of mold dynamic model upper surface, is being in that circle is symmetrically offered to the core pulling two sides of setting
Hole, it is interior to be equipped with return spring, it is being equipped with cone locking slot in the core pulling upper surface middle part of setting, under injection molding cover half
Surface is equipped with latch segment, and latch segment lower end is equipped with cone locking head compatible with cone locking slot, when molding, cone locking head
It pushes and enters in cone locking slot along molding direction, cone locking head makes cone locking slot inclined-plane stress, in the core pulling to setting
It is sliped off to both sides, return spring is in pressured state at this time, and the injection flow passage in the adjacent injecting cavity of mold shortens, part injection
Flow channel section material can be greatlyd save in the process；When die sinking, cone locking head rises along die sinking direction, and return spring discharges bullet
Power guarantees the smooth return of core pulling；But when return spring failure, in order to avoid core pulling is stuck, the design increases in core pulling
Drafting mechanism, in uphill process, drafting mechanism can give cone locking first upward lifting force, guarantee that return spring exists
Also core pulling can be normally completed under failure state, specifically, the drafting mechanism is in core pulling upper surface, cone locking slot two sides
Oblique groove, latch segment lower end be equipped with the matched oblique protrusion of oblique groove, the oblique groove and it is oblique protrusion be phase
The U-shaped structure of adaptation, and the U-shaped structure, at least on one side to be obliquely installed, inclined direction is that direction is drawn close in two core pullings,
The inclined-plane of oblique raised diagonally groove is inserted into oblique groove when molding；Oblique protrusion can be to the oblique of oblique groove when die sinking
One, face lifting force, and then core pulling can be assisted.
The configuration of the present invention is simple is skillfully constructed, convenient to use, economical and practical, practical reliable, solves a kind of spring pumping
The problems such as core mechanism moment fails, core pulling is stuck guarantees that the failure of spring moment can also work normally, effectively increases injection part
Production efficiency, have good promotion prospect.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is A-A the schematic diagram of the section structure in Fig. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description:
As depicted in figs. 1 and 2, the spring core-pulling mechanism of a kind of injection molding, it is arranged in multiple injecting cavities of injection molding,
The injection molding includes the dynamic model 1 and cover half 2 matched, and the injection port 101 of injection molding passes through between runner 102 and each chamber
Connection, it includes being arranged to offer sliding block square groove 103 in 1 upper surface of injection molding dynamic model, is equipped in sliding block square groove 103
It is mounted therein with return spring 5 in circular hole 301 is symmetrically opened up to 3 two sides of core pulling of setting in the core pulling 3 to setting,
It is equipped with cone locking slot 302 in 3 upper surface middle part of core pulling of setting, is equipped with latch segment 6 in 2 lower surface of injection molding cover half,
6 lower end of latch segment is equipped with cone locking head 601 compatible with cone locking slot 302, and the cone locking head 601 is pressed into taper
In locking slot 302, it can make to make the return spring 5 of 3 two sides of core pulling be in pressured state in 3 distending of core pulling to setting, realize
Withhold locking molding；The drafting mechanism being used cooperatively is equipped in the core pulling 3 and latch segment 6, the drafting mechanism is to match
The oblique groove 303 and oblique raised 602 used is closed, the oblique groove 303 is arranged in core pulling upper surface, cone locking slot two
Side；Oblique raised 602 are arranged in latch segment lower end, position corresponding with oblique groove 303,303 He of oblique groove
Oblique raised 602 can be compatible U-shaped structure, and at least on one side to be obliquely installed, and its inclined direction is two pumpings
Core draws close direction；Molding make described oblique raised 602 diagonally groove inclined-plane insertion oblique groove 303 in；Die opening state institute
State the oblique raised 602 diagonally extractions of groove 303.
103 bottom surface of sliding block square groove on dynamic model 1 opens up threaded hole 104, and guider screw 4 is equipped in threaded hole 104,
The guider screw 4 is cheese head screw, and the bottom surface in the core pulling 3 to setting offers the groove that round end therewith matches,
Cheese head screw is used to limit shift length of the core pulling 3 under the effect of 5 elastic force of reset spring, so that circle of the core pulling 3 along cheese head screw
Head sliding.
When molding, during the cone locking head 601 of latch segment 6 molds direction pushing, cone locking face, which acts on, is in
To the cone locking slot 302 of the core pulling 3 of setting, after 3 stress of core pulling along guider screw 4 to both sides sliding come, return spring 5 by
Power deformation, return spring 5 is in compressive state at this time, and runner 102 shortens in injection process, can save flow channel material；Die sinking
When, latch segment 6 is moved up along die sinking direction, so that the ramp effect power of core pulling cone locking slot 302 is withdrawn from, return spring 5
Elastic force act on core pulling 3 movement close up, realize plastic part be buckled to core pulling, due to plastic part back-off there are enclasping forces, deposit
In return spring 5 moment elastic force Problem of Failure, at this point, during latch segment 6 moves up, oblique raised the 602 of latch segment 6 therewith from
It is extracted in the oblique groove 303 of core pulling 3, when extraction, oblique raised 602 ramp effect drove core pulling 3 on oblique groove 303
Normal movement realizes spring core pulling miscellaneous function, guarantees that return spring 5 can also work normally under failure state.
Claims (5)
1. a kind of spring core-pulling mechanism of injection molding, it is arranged in multiple injecting cavities of injection molding, the note of injection molding
Loophole between runner and each chamber by being connected to, it is characterised in that: it includes being arranged in injection molding dynamic model (1) upper surface sliding block side
It is being in that circular hole (301) are symmetrically offered to core pulling (3) two sides of setting in the core pulling (3) to setting in shape slot (103),
It is interior to be equipped with return spring (5), cone locking slot (302) are being equipped in core pulling (3) upper surface middle part of setting, in injection molding
Cover half lower surface is equipped with latch segment (6), and latch segment (6) lower end is equipped with cone locking slot (302) compatible cone locking head
(601), locking molding is withheld in cone locking head (601) insertion cone locking slot (302)；And in the core pulling (3)
It is equipped with the drafting mechanism being used cooperatively with latch segment (6), the drafting mechanism is used for auxiliary mould-opening core pulling.
2. the spring core-pulling mechanism of injection molding according to claim 1, it is characterised in that: the drafting mechanism includes setting
Set the oblique groove (303) in core pulling (3) upper surface, cone locking slot (302) two sides, latch segment (6) lower end be equipped with it is oblique
It is matched oblique raised (602) to groove (303)；In oblique protrusion (602) insertion oblique groove (303) described in molding state；
Oblique protrusion (602) described in die opening state diagonally extract by groove (303).
3. the spring core-pulling mechanism of injection molding according to claim 2, it is characterised in that: the oblique groove (303)
It is compatible U-shaped structure with oblique raised (602), and the U-shaped structure is at least to be obliquely installed on one side, inclination side
Direction is drawn close to for two core pullings.
4. the spring core-pulling mechanism of injection molding according to claim 1, it is characterised in that: the core pulling in setting
(3) bottom is equipped with the guiding mechanism for core pulling (3) slide-and-guide.
5. the spring core-pulling mechanism of injection molding according to claim 1, it is characterised in that: the guiding mechanism includes setting
The guider screw (4) in the middle part of sliding block square groove (103) is set, the guider screw (4) is cheese head screw, described in setting
Core pulling (3) bottom surface offers the groove that round end therewith matches, and the round end of cheese head screw is placed in groove, and core pulling (3) is along round end
The round end of screw slides limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469311.7A CN109591263A (en) | 2018-11-28 | 2018-11-28 | A kind of spring core-pulling mechanism of injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469311.7A CN109591263A (en) | 2018-11-28 | 2018-11-28 | A kind of spring core-pulling mechanism of injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109591263A true CN109591263A (en) | 2019-04-09 |
Family
ID=65961008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811469311.7A Pending CN109591263A (en) | 2018-11-28 | 2018-11-28 | A kind of spring core-pulling mechanism of injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109591263A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085236A (en) * | 2013-02-26 | 2013-05-08 | 成都市联余精密机械有限公司 | High-cavity precision bottle cap die of novel HALF block structure |
| CN103737804A (en) * | 2013-12-11 | 2014-04-23 | 思柏精密模具注塑（无锡）有限公司 | Precision mould of combined-type carbon powder cartridge main member |
| CN203844139U (en) * | 2013-11-27 | 2014-09-24 | 南京化工职业技术学院 | Inner ring core pulling injection mould |
| CN106738686A (en) * | 2016-12-26 | 2017-05-31 | 浙江工商职业技术学院 | T-slot drives in double-slider center and receives mould emptier |
-
2018
- 2018-11-28 CN CN201811469311.7A patent/CN109591263A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085236A (en) * | 2013-02-26 | 2013-05-08 | 成都市联余精密机械有限公司 | High-cavity precision bottle cap die of novel HALF block structure |
| CN203844139U (en) * | 2013-11-27 | 2014-09-24 | 南京化工职业技术学院 | Inner ring core pulling injection mould |
| CN103737804A (en) * | 2013-12-11 | 2014-04-23 | 思柏精密模具注塑（无锡）有限公司 | Precision mould of combined-type carbon powder cartridge main member |
| CN106738686A (en) * | 2016-12-26 | 2017-05-31 | 浙江工商职业技术学院 | T-slot drives in double-slider center and receives mould emptier |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190409 |