CN109878036A - A kind of loose-core injection mould demoulding mechanism twice - Google Patents
A kind of loose-core injection mould demoulding mechanism twice Download PDFInfo
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- CN109878036A CN109878036A CN201711274031.6A CN201711274031A CN109878036A CN 109878036 A CN109878036 A CN 109878036A CN 201711274031 A CN201711274031 A CN 201711274031A CN 109878036 A CN109878036 A CN 109878036A
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Abstract
The present invention provides a kind of loose-core injection mould demoulding mechanisms twice；Demoulding mechanism design uses multilayer multiple step format demoulding mechanism, and mechanism carries out the combined type demoulding mechanism mode that the two-layer of outer layer thread core Leave out thread successively acts using the core pulling of stratotype core elder generation, oil cylinder drive rack in slider-actuated；The inventive die provided by adopting the above technical scheme can be realized with simple mechanism and require the zero-fault of characteristic product to automate molding production with side mostly demoulding, and mould structure design is reasonable, compact-sized, the operation is stable.
Description
Technical field
The present invention relates to injection mold mechanism design field, specially a kind of loose-core injection mould demoulding mechanism twice.
Background technique
As shown in Figure 1, plastic, in injection molding, often the feature locations presence special in same side both needs side core-pulling
The case where needing screw thread to demould again, thus, having both multiple functions requires the structure design of plastic general complex, to these modelings
For part uses injection molding production method, the design of mould structure is generally complex, there is certain design difficulty.
Summary of the invention
Technical problem to be solved by the present invention lies in a kind of loose-core injection mould demoulding mechanism twice is provided, design is closed
Reason, compact-sized, the operation is stable are securely and reliably, easy-to-use；In order to solve the above-mentioned prior art problems, the present invention is using such as
A kind of lower scheme: loose-core injection mould mechanism, including oil cylinder with gear racks support, guide pad, oil cylinder with gear racks, the second driving cog twice
Wheel, rack gear, bearing, the first transmission gear, inclined guide pillar, sliding block positive stop bead, slider layering, water nozzle, wedge block, wearing plate, mandrel
Water-impermeable piece, sliding block, wedge block screw, guide post compact heap, sliding block power assistant spring, sealing rubber ring, central type core briquetting, thread bush,
Bracket, thread core, intermediate stratotype core, central type core.
The body function has a；First is central type core core pulling, completes the molding and demoulding of product central part,
It is intermediate stratotype core and central type core that it, which corresponds to part,；Second be outer layer characteristic threads core pulling, complete characteristic threads at
Type and demoulding, correspondence part are thread core.
The slipper block loose core component includes inclined guide pillar, sliding block positive stop bead, slider layering, water nozzle, wedge block, wearing plate, core
Axis water-impermeable piece, sliding block, wedge block screw, guide post compact heap, sliding block power assistant spring, sealing rubber ring, central type core briquetting, middle layer
Type core, central type core；Intermediate stratotype core, central type core are fastened on sliding block by central type core briquetting, and sliding block is installed on
On mold moving template, core pulling campaign is done by inclined guide pillar driving；Inclined guide pillar is installed on solid plate by guide post compact heap；Sliding block to
It is extrapolated to be driven by sliding block power assistant spring, and it is limited by sliding block positive stop bead.
The screw thread core pulling component include oil cylinder with gear racks support, guide pad, oil cylinder with gear racks, the second transmission gear, rack gear,
Bearing, the first transmission gear, thread bush, bracket, thread core, thread core are set on intermediate stratotype core, are machined with thereon
Drive gear, oil cylinder with gear racks by the first transmission gear, the second transmission gear to be rotated to drive thread core, screw-type
The lead of screw thread of core is controlled by thread bush；
When the mechanism is directed to specific feature core pulling, thread core Leave out thread is first driven by oil cylinder with gear racks, then by oblique
Guide post drives sliding block to carry out side core-pulling.
In the present invention: the technical issues of central type core core pulling component parts solve is: it is big for endothecium structure package power, together
When cooled down to ensure that Internal Hole Deformation is small, the narrow problem in mechanism design space, the beneficial effect reached is: realizing
The small deformation of central bore and its surrounding features is demoulded without deformation, can accomplish effectively cooling to medium pore type core, and containment produces
The deformation of product inhomogeneous cooling bring.
In the present invention: the technical issues of screw thread core pulling components component solves is: apertures ectonexine thread turns is more,
Package power is big, it is not easy to which the problem of controlling thread termination position, the beneficial effect reached is: by the guidance of screw thread guide ring,
The molding accuracy that ensure that product screw position increases thread core Leave out thread rotational power using oil cylinder driving, drops
The difficulty of low Leave out thread mechanism design, realizes the automated production of this feature Leave out thread, reduces die manufacturing cost.
The present invention is whole, and be directed to has the directly straight core pulling of internal layer, outer layer multi-turn number characteristic threads machine compared to the prior art
Structure layout and design are complicated, and reliability is low, it is difficult to the problem of guaranteeing forming quality of products, the beneficial effect is that: it can be with simply
Mechanism realizes to demould with side more requires the zero-fault of characteristic product to automate molding production, and it is special to solve same side opening on product
When levying inner side edge core pulling, outer layer needs Leave out thread, and internal layer package power is big, needs big Core-pulling force to demould but easily causes side opening spy
Levy the demoulding mechanism design problem of large deformation；Mechanism structure design is simple, and the die space of occupancy is small, and internal layer core pulling is big, stablizes
Reliably, thread mechanism energy parking position accuracy guarantees the identity of each product screw position, caused production when demoulding of outer layer mechanism
Product become smaller minimum, and inside and outside forming part can be winding is effectively cooled, and are able to achieve same side and demould more and require the zero of characteristic product
Defect automation molding production, is effectively guaranteed forming quality of products, airtightness；It is reasonable in design, compact-sized, work
Stablize, it is securely and reliably, easy-to-use.
Detailed description of the invention
Fig. 1 product structure；
Fig. 2 demoulding mechanism structure composition；
Layout is overlooked by Fig. 3 mechanism；
Fig. 4 gear mechanism；
Installation of the Fig. 5 on mold.
Specific embodiment
Fig. 1-5 show related description figure of the present invention；The object pump casing cover product structure that this mold is directed to is as shown in Figure 1.
Product is thin shell piece, and average wall thickness 1.8mm, material is using modified ABS+PC；The demoulding design of product is this product mould structure
The difficult point of design, A are inside groove, and B Cylinder inner bore screw thread thus for B internal screw thread feature, needs to take off using inner threaded core-pulling
Mould, it can be considered to use two layers of stripping means, i.e. A core_pulling demoulding, stripping direction be along cylinder central axis to
Outside,；The demoulding of B thread core.
Specific embodiment is, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of loose-core injection mould demoulding mechanism twice,
Including oil cylinder with gear racks support 1, guide pad 2, oil cylinder with gear racks 3, the second transmission gear 4, rack gear 5, bearing 6, the first transmission gear 7,
Inclined guide pillar 8, sliding block positive stop bead 9, slider layering 10, water nozzle 11, wedge block 12, wearing plate 13, mandrel water-impermeable piece 14, sliding block 15,
Wedge block screw 16, guide post compact heap 17, sliding block power assistant spring 18, sealing rubber ring 19, central type core briquetting 20, thread bush 21,
Bracket 22, thread core 23, intermediate stratotype core 24, central type core 25.
The body function has 2；First is central type core core pulling, completes the molding of product central part and takes off
Mould, corresponding to part is intermediate stratotype core 24 and central type core 25；Second be outer layer characteristic threads core pulling, it is special to complete screw thread
The molding and demoulding of sign, correspondence part are thread core 23.
The slipper block loose core component includes inclined guide pillar 8, sliding block positive stop bead 9, slider layering 10, water nozzle 11, wedge block 12, resistance to
Nog plate 13, mandrel water-impermeable piece 14, sliding block 15, wedge block screw 16, guide post compact heap 17, sliding block power assistant spring 18, sealing rubber ring
19, central type core briquetting 20, intermediate stratotype core 24, central type core 25；Intermediate stratotype core 24, central type core 25 pass through central type core
Briquetting 20 is fastened on sliding block 15, and sliding block 15 is installed on mold moving template, does core pulling campaign by the driving of inclined guide pillar 8；Tiltedly
Guide post 16 is installed on solid plate 5 by guide post compact heap 15；Sliding block 15 is pushed outwardly by sliding block power assistant spring 24 and drives, and
It is limited by sliding block positive stop bead 9.
The screw thread core pulling component includes oil cylinder with gear racks support 1, guide pad 2, oil cylinder with gear racks 3, the second transmission gear 4, tooth
Item 5, bearing 6, the first transmission gear 7, thread bush 21, bracket 22, thread core 23, thread core 23 are set in intermediate stratotype core
On 24, it is machined with driving gear thereon, oil cylinder with gear racks 3 is by the first transmission gear 7, the second transmission gear 4 thus to drive spiral shell
Line type core 23 rotates, and the lead of screw thread of thread core 23 controlled by thread bush 21；
The mechanism be directed to specific feature core pulling when, first by oil cylinder with gear racks 3 drive 23 Leave out thread of thread core, then by
Inclined guide pillar 16 drives sliding block 15 to carry out side core-pulling.
A kind of application method of loose-core injection mould demoulding mechanism twice is also claimed in the application.
In actual work, the course of work of mechanism is divided into following steps:
1) mold injection finishes, and waits die sinking；
2) 3) injection pressure is first shed, then completes B spiral shell using oil cylinder with gear racks 3 and its gear combination driving thread core 23
The Leave out thread of line, as shown in Figure 5；
3) PL die joint is opened, and inclined guide pillar 8 drives the demoulding of the outside core pulling of sliding block 15 realization A feature.
4) Guan Bi mould of mechanism is closed at PL die joint, and 8 pioneer's movable slider 15 of inclined guide pillar resets, then, rack gear oil
Cylinder 3 and its gear combination driving thread core 23 reset, and mold is closed completely, and waits next injection cycle.
Specific embodiment described herein is only an example for the spirit of the invention, the neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (2)
1. a kind of loose-core injection mould demoulding mechanism twice, including oil cylinder with gear racks support (1), guide pad (2), oil cylinder with gear racks (3),
Second transmission gear (4), rack gear (5), bearing (6), the first transmission gear (7), inclined guide pillar (8), sliding block positive stop bead (9), sliding block
Press strip (10), water nozzle (11), wedge block (12), wearing plate (13), mandrel water-impermeable piece (14), sliding block (15), wedge block screw
(16), guide post compact heap (17), sliding block power assistant spring (18), sealing rubber ring (19), central type core briquetting (20), thread bush
(21), bracket (22), thread core (23), intermediate stratotype core (24), central type core (25), central axis (26), bearings plate
(27), solid plate (28), moving template (29)；In the mechanism, Power Component include oil cylinder with gear racks support (1), guide pad (2),
Oil cylinder with gear racks (3), the second transmission gear (4), rack gear (5), bearing (6), the first transmission gear (7)；
Guide pad (2) is fastened on oil cylinder with gear racks support (1) by screw, and the movement for oil cylinder with gear racks (3) provides guiding,
The extension end of the center cylinder rod of oil cylinder with gear racks (3) is fixedly connected by screw with mold Side shuttering, is being led for oil cylinder with gear racks (3)
The fixed supporting point of mobile offer on block (2)；Rack gear (5) is fastened on oil cylinder with gear racks (3) by screw, the second transmission
Gear (4), the first transmission gear (7) are installed on a central axis (26), which is installed on bearings plate by bearing (6)
(27) on；
Side slipper block loose core component includes inclined guide pillar (8), sliding block positive stop bead (9), slider layering (10), water nozzle (11), wedge block
(12), wearing plate (13), mandrel water-impermeable piece (14), sliding block (15), wedge block screw (16), guide post compact heap (17), sliding block help
Power spring (18), sealing rubber ring (19), central type core briquetting (20), inclined guide pillar (8) are tight by guide post compact heap (17) and screw
Loaded on the solid plate (28) of mold, wedge block (12) is fastened on stationary mould for mould plate (28) by screw, wear-resisting for Guan County
Plate (13) is fastened on the back side of sliding block (15) by screw, and sliding block (15) is installed on mold dynamic model by slider layering (10)
On plate (29), the side of sliding block (15) can be installed on for the guide groove of sliding block (15) sliding motion, sliding block power assistant spring (18) by being formed
In hole, provides for the side core-pulling movement of sliding block (15) and skids off motive force, sliding block (15) is provided with water passage, the access of water with
It picking out and is completed by water nozzle (11), water nozzle (11) is fastened on sliding block (15) by the pipe screw thread that itself one end is arranged, in
Between stratotype core (24), central type core (25) be then fastened on sliding block (15) by central type core briquetting (20) and screw, in
It inlays and is equipped with mandrel water-impermeable piece (14) in centre type core (25), sealing rubber ring (19) is mounted on central type core (25) and sliding block (15)
Contact interface, to prevent leak-stopping water；
Inner threaded core-pulling component includes thread bush (21), bracket (22), thread core (23), and thread bush (21) is fastened by screw
It is installed on bracket (22), bracket (22) is installed on mould template by screw, thread core (23) one end and thread bush
(21) spiral marking connection, the other end are forming internal threads end, are inserted into die cavity component after the lantern ring being installed on bracket (22),
A part of plastic product forming part is constituted, the axis for engaging cooperation with the second transmission gear (4) is provided on thread core (23)
Gear.
2. a kind of according to claim 1, loose-core injection mould demoulding mechanism, the body function have 2 twice；First is
The molding and demoulding of product central part are completed in centre type core core pulling, and corresponding to part is intermediate stratotype core (24) and central type
Core (25)；Second be outer layer characteristic threads core pulling, complete the molding and demoulding of characteristic threads, correspondence part is screw-type
Core (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274031.6A CN109878036A (en) | 2017-12-06 | 2017-12-06 | A kind of loose-core injection mould demoulding mechanism twice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274031.6A CN109878036A (en) | 2017-12-06 | 2017-12-06 | A kind of loose-core injection mould demoulding mechanism twice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109878036A true CN109878036A (en) | 2019-06-14 |
Family
ID=66923420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711274031.6A Withdrawn CN109878036A (en) | 2017-12-06 | 2017-12-06 | A kind of loose-core injection mould demoulding mechanism twice |
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| CN (1) | CN109878036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099111A (en) * | 2017-12-13 | 2018-06-01 | 乌鲁木齐九品芝麻信息科技有限公司 | MEDICAL WASTE TREATMENT equipment and its manufacturing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859111A (en) * | 2015-06-21 | 2015-08-26 | 张向荣 | Oil cylinder two-time parting core-pulling injection mould |
-
2017
- 2017-12-06 CN CN201711274031.6A patent/CN109878036A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859111A (en) * | 2015-06-21 | 2015-08-26 | 张向荣 | Oil cylinder two-time parting core-pulling injection mould |
Non-Patent Citations (1)
| Title |
|---|
| 汪哲能: "医用输液泵体多层式复合脱模机构与注塑模具结构", 《工程塑料应用》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099111A (en) * | 2017-12-13 | 2018-06-01 | 乌鲁木齐九品芝麻信息科技有限公司 | MEDICAL WASTE TREATMENT equipment and its manufacturing method |
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Application publication date: 20190614 |