CN204977317U - Shedder of high accuracy injection molding - Google Patents
Shedder of high accuracy injection molding Download PDFInfo
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- CN204977317U CN204977317U CN201520675550.3U CN201520675550U CN204977317U CN 204977317 U CN204977317 U CN 204977317U CN 201520675550 U CN201520675550 U CN 201520675550U CN 204977317 U CN204977317 U CN 204977317U
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Abstract
The utility model discloses a shedder of high accuracy injection molding, including cover half, movable mould, the 1st rank fixing mold insert, the 2nd rank fixing mold insert, the 1st rank movable mould mold insert, the 2nd rank movable mould mold insert, the 1st rank fixing mold insert and the 2nd rank fixing mold insert fixed mounting in the cover half, the 1st rank fixing mold insert and the 2nd rank fixing mold insert's lower extreme stretches into the periphery that die cavity and the 2nd rank fixing mold insert are located the 1st rank fixing mold insert, the 1st rank movable mould mold insert and the 2nd rank movable mould mold insert fixed mounting in the movable mould, the die cavity is stretched into to the upper end of the 1st rank movable mould mold insert and the 2nd rank movable mould mold insert, the 2nd rank movable mould mold insert is located the periphery of the 1st rank movable mould mold insert. Because the utility model discloses be decomposed into multistage combination to cover half and movable mould simultaneously, connect through tapering mold insert direction, control the stroke with the gag lever post. Utilize sequential control part group - - - spring, nylon drag hook, control holistic opening stroke and priority order, guaranteed the stability of mould.
Description
Technical field
The utility model relates to mould of plastics field, particularly relates to a kind of stripper apparatus of high-precision injection molding part.
Background technology
Plastic injection mould is the instrument producing plastic products, and application widely.Plastic product is also applied in daily life more and more widely, as each industrial circle such as building, machinery, electronics, instrument, instrument.For the plastic product that some required precisions are high, as: as shown in Figure 1A, Figure 1B, the radiator shutter 100 of mainframe computer, has a ceramic rotating shaft 101 as rotating shaft in the middle part of it, the annular groove 102 at middle part and the blade 103 of outer, all have high required precision.In order to obtain high accuracy, it is not only high to the die cavity required precision of mould of plastics, and it is also proposed higher requirement to the extrusion method of mould and ejecting mechanism.
Utility model content
The purpose of this utility model is the stripper apparatus providing the reliable high-precision injection molding part of a kind of having stable behavior.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of stripper apparatus of high-precision injection molding part, comprises cover half, dynamic model, the 1st rank cover half mold insert, the 2nd rank cover half mold insert, the 1st rank insert, the 2nd rank insert; The 1st described rank cover half mold insert and the 2nd rank cover half mold insert are fixedly mounted in cover half, and the lower end of the 1st rank cover half mold insert and the 2nd rank cover half mold insert stretches into die cavity and the 2nd rank cover half mold insert is positioned at the periphery of the 1st rank cover half mold insert; The 1st described rank insert and the 2nd rank insert are fixedly mounted in dynamic model, and die cavity is stretched in the upper end of the 1st rank insert and the 2nd rank insert, and the 2nd rank insert is positioned at the periphery of the 1st rank insert.
The head of the 1st described rank insert has tapering, and this tapering head coordinates with the taper hole in the 2nd rank insert.
Described cover half mold insert is provided with multiple location pin, and the plurality of location pin is arranged around the 1st rank cover half mold insert.After adopting such scheme, due to the stripper apparatus of the high-precision injection molding part that the utility model provides, the plastic products that can be used for complex structure, demoulding difficulty, the strict management and control dimensional accuracy of need and the depth of parallelism and have strict perpendicularity to require, it comprises the mould element such as zero degree keeper, front mould pneumatic jack mold insert in cover half, dynamic model, the 1st rank cover half mold insert, the 2nd rank cover half mold insert, the 1st rank insert, the 2nd rank insert, sequential control part group, spring, nylon drag hook, mould.Fixed half and moving half is decomposed into multi-stepped combined simultaneously, is connected by tapering mold insert guiding, control stroke with gag lever post.Utilizing sequential control part group--spring, nylon drag hook, control overall opening stroke and sequencing, ensure that the stability of mould.
According to dynamic mechanical, the principle of point-to-point transmission stress equalization, the utility model devises two-way location, ensures the coaxial precision between locating shaft with turbine, equilibrium centrifugation power, reduces noise.Simultaneously because the surface hardness of pottery is far away higher than iron and steel, creep coefficient is little, and wear-resistant coefficient is high.So select to resistance to wear pottery for axle center.Reduce the wear extent of use procedure, ensure the stability of part.Adopt pottery as frame axle center.For improving main stand crystallization effect, mould independently two groups of heating before and after mould adopts, the design of two groups of cooling temperature controls.Ensure the samming of mould, weighing apparatus temperature.Making in forming process can sufficient crystallising, improves compact crystallization, reduces creep.Ceramic insert and plastic parts one-shot forming, ceramic axle center is carried out fusion and is fixed in polymer crystallization process.Axiality reaches 0.01mm.Adopt two-way multistage mould emptier, segmentation ejects, and carries out many times decomposition to the knockout press after crystallization.Ensure the depth of parallelism of frame, perpendicularity, allowance control is at 0.02mm.This product is the heat radiation for altitude server, and noise reduction needs the plastic parts of directed research and development, need overcome plastic parts and easily produce creep under daily high/low temperature environment for use, cause instability, degradation defect under service life.To the offset at goods spue line place, the deflection of burr and entirety has strict requirement, and goods buckling deformation perpendicularity requires as 0.01mm.The defect of goods will have a strong impact on the precision of plastic parts.Particularly these goods produce very large change at emphasis management and control position wall thickness, and local wall thickness only has 0.6.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Accompanying drawing explanation
Figure 1A be product overlook axonometric drawing;
Figure 1B be product look up axonometric drawing;
Fig. 2 A is elevational cross-sectional view of the present utility model;
Fig. 2 B is side view cutaway drawing of the present utility model;
Fig. 3 A is the elevational cross-sectional view after being separated the utility model first time;
Fig. 3 B is the side view cutaway drawing after being separated the utility model first time;
Fig. 4 A is the elevational cross-sectional view after the utility model second time is separated;
Fig. 4 B is the side view cutaway drawing after the utility model second time is separated;
Fig. 5 is the front view after being separated the utility model third time;
Fig. 6 is the front view after the utility model is separated for the 4th time;
Fig. 7 is the front view after the utility model is separated for the 5th time;
Fig. 8 is the front view after the utility model is separated for the 6th time;
Fig. 9 is the stereogram of the utility model cover half mold insert and cover half mold insert;
Figure 10 is the axonometric drawing of the utility model dynamic model.
Detailed description of the invention
As shown in Fig. 2 A, Fig. 2 B, the utility model is a kind of stripper apparatus of high-precision injection molding part, comprises cover half 1, dynamic model 2, the 1st rank cover half mold insert the 3, the 2nd rank cover half mold insert the 4, the 1st rank insert 5, the 2nd rank insert 6, cover half mold insert 7, insert 8.
The 1st described rank cover half mold insert the 3, the 2nd rank cover half mold insert 4, cover half mold insert 7 are all fixedly mounted in cover half 1, and the lower end of the 1st rank cover half mold insert the 3 and the 2nd rank cover half mold insert 4 stretches into die cavity and the 2nd rank cover half mold insert 4 is positioned at the periphery of the 1st rank cover half mold insert 3.The positioning sleeve 7 for fixing ceramic rotating shaft 20 is provided with at die cavity.During the demoulding, the 1st rank cover half mold insert the 3 and the 2nd rank cover half mold insert 4 can relative dislocation (that is, staggered floor arrangement), and the 1st rank cover half mold insert 3 can depart from die cavity prior to the 2nd rank cover half mold insert 4.
The 1st described rank insert 5, the 2nd rank insert 6, insert 8 are all fixedly mounted in dynamic model 2 and the 1st rank insert 5 and the 2nd rank insert 6 can relative dislocation, and the upper end of the 1st rank insert 5 and the 2nd rank insert 6 stretches into die cavity and the 2nd rank insert 6 is positioned at the periphery of the 1st rank insert 5.During the demoulding, the 1st rank insert 5 and the 2nd rank insert 6 can relative dislocation (that is, staggered floor arrangement), and the 1st rank insert 5 can depart from die cavity prior to the 2nd rank insert 6.
As shown in Figure 9, the head 51 of the 1st described rank insert 5 has tapering, and this tapering head coordinates with the taper hole in the 2nd rank insert 6, and the 1st rank insert 5 can be guided preferably to insert in the taper hole of the 2nd rank insert 6.Cover half mold insert 7 is provided with multiple location pin 71, and the plurality of location pin 71 is arranged around the 1st rank cover half mold insert 3, that is, arrange around mold insert D.
Release method of the present utility model, comprises following demoulding step:
(1) as shown in Fig. 2 A, Fig. 2 B, Fig. 3 A, Fig. 3 B, first time is separated: after injection moulding completes, in cover half 1, the 1st rank cover half mold insert 3 departs from product, and the 2nd rank cover half mold insert 4 still keeps in touch with product, plays the supporting role to product.
That is, under the pulling force effect of nylon drag hook 10 and nylon drag hook 9, cover half mold insert 7 and insert 8 are fixed together; In the thrust of spring 11, Ji Jingmo center mold insert in the promotion of pressure-air, and under the pulling force acting in conjunction of dynamic model nylon drag hook 10, makes cover half mold insert 7 be separated with cover half 1.Reach and be separated object for the first time.The mode that mold insert is arranged with staggered floor is designed, guarantees finished product each stress point producing balanced forces in knockout course.The unlikely finished product that causes causes buckling deformation because of discontinuity.The stroke be separated is controlled by gag lever post in cover half 1 12.Utilize 4 the zero degree guides being arranged on position of center line in separation process, in guide runner, do slide anteroposterior.Force to revise the enclasping force in die sinking process.Guarantee the axiality in separation process.And utilize pressure-air to promote mold insert D(on quiet mould central shaft as shown in Figure 9), guide ceramic rotating shaft 101.Play the effect ejected simultaneously.Guarantee in knockout course, center ceramic rotating shaft 101 will, because of the impact of outside enclasping force, cause perpendicularity and axiality to occur deviation.
(2) as shown in Fig. 2 A, Fig. 2 B, Fig. 4 A, Fig. 4 B, second time is separated: in dynamic model 2, the 1st rank insert 5 departs from product, and the 2nd rank insert 6 still keeps in touch with product, plays the supporting role to product.That is, after single order is separated, utilize injection machine from the pulling force moved after one's death, carry out second time and be separated.1st rank insert 5 is separated with insert 8, and the single order forming dynamic model part is separated (namely second time is separated).Utilize the staggered floor arrangement mode of mold insert, guarantee finished product each stress point producing balanced forces in knockout course.The unlikely finished product that causes causes buckling deformation because of discontinuity.Controlled the stroke be separated by gag lever post 14, utilize the positive guide pillar of mould bases to slide in guide pin bushing, ensure in separation process each to stress equalization.By linking fast B(as shown in Figure 10) insert 8 and ejection system are linked, drive the thimble in ejection system, do primaryly ejecting action.Make the thimble in insert 8, plastic cement finished product and ejection system constant relative to holding position, carry out the enclasping force of product in balanced decomposition this separation process.Solve in separation process, because the 1st rank insert 5 border enclasping force is unbalanced, cause the problem of product buckling deformation.
(3) as shown in Figure 5, third time is separated, and in cover half 1, the 2nd rank cover half mold insert 4 departs from product; Meanwhile, in dynamic model 2, the 2nd rank insert 6 departs from product.That is, after second time is separated, utilize injection machine from the pulling force moved after one's death, carry out third time separation.By the stroke that arm-tie 13 pulls front mould and control to pull, make to depart from quiet die cavity body into solation road.4 of mould bases anti-ballistic posts are utilized to lead.
(4) as shown in Figure 6, be separated for the 4th time, after third time is separated, utilize injection machine from the pulling force moved after one's death, carry out the 4th time and be separated.Pulled by arm-tie 13 and continue to pull front mould, utilize gag lever post 15 to limit and pull stroke, make to depart from stripper plate into solation road.Complete into the whole knockout course in solation road.
(5) as shown in Figure 7, the 5th is separated, and after being separated at the 4th time, the pulling force that moves after utilizing injection machine self to continue, carries out the 5th time and be separated (being namely separated main parting line), makes separating of dynamic model 2 and cover half 1.Utilize zero degree guide in separation process, in insert 8 guide runner of minimum fit clearance, do slide anteroposterior, and be arranged on the zero degree limit lock guiding on mould bases edge center line.Eliminate the error amount of bearing type die set guide pin guide pin bushing fit clearance.Carry out secondary to force to revise the enclasping force in die sinking process.Guarantee the axiality in separation process.Limited by arm-tie 16 and pull stroke, for finished product ejects headspace.
(6) as shown in Figure 8, be separated for the 6th time, after being separated at the 5th time, utilize the ejection system of injection machine.Carry out being separated the stripping action that (namely ejecting dynamic model cavity injection-molded finished) completes finished product for the 6th time.The precision guides in mould bases ejection system is utilized to carry out correcting in ejection process.
It should be noted that:
The utility model is not limited to two rank cover half and two rank dynamic models, wherein,
For multistage cover half mold insert, the first time demoulding be the cover half mold insert of odd number, that is, the 1st, 3,5,7 ..., N rank cover half mold insert, the second time demoulding be the cover half mold insert of even number, that is, the 2nd, 4,6,8 ..., N rank cover half mold insert.
For multistage insert, the first time demoulding be the insert of odd number, that is, the 1st, 3,5,7 ..., N rank insert, the second time demoulding be the insert of even number, that is, the 2nd, 4,6,8 ..., N rank insert.
Emphasis of the present utility model is just: the demoulding at twice.
The above, be only the utility model preferred embodiment, the exponent number of demoulding mold insert is determined according to needs, therefore the scope of the utility model enforcement can not be limited with this, namely the equivalence change done according to the utility model claim and description with modify, all should still belong in scope that the utility model patent contains.
Claims (3)
1. a stripper apparatus for high-precision injection molding part, is characterized in that: comprise cover half, dynamic model, the 1st rank cover half mold insert, the 2nd rank cover half mold insert, the 1st rank insert, the 2nd rank insert; The 1st described rank cover half mold insert and the 2nd rank cover half mold insert are fixedly mounted in cover half, and the lower end of the 1st rank cover half mold insert and the 2nd rank cover half mold insert stretches into die cavity and the 2nd rank cover half mold insert is positioned at the periphery of the 1st rank cover half mold insert; The 1st described rank insert and the 2nd rank insert are fixedly mounted in dynamic model, and die cavity is stretched in the upper end of the 1st rank insert and the 2nd rank insert, and the 2nd rank insert is positioned at the periphery of the 1st rank insert.
2. the stripper apparatus of high-precision injection molding part according to claim 1, is characterized in that: the head of the 1st described rank insert has tapering, and this tapering head coordinates with the taper hole in the 2nd rank insert.
3. the stripper apparatus of high-precision injection molding part according to claim 1, is characterized in that: it is characterized in that: described cover half mold insert is provided with multiple location pin, and the plurality of location pin is arranged around the 1st rank cover half mold insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675550.3U CN204977317U (en) | 2015-09-02 | 2015-09-02 | Shedder of high accuracy injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675550.3U CN204977317U (en) | 2015-09-02 | 2015-09-02 | Shedder of high accuracy injection molding |
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| Publication Number | Publication Date |
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| CN204977317U true CN204977317U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520675550.3U Active CN204977317U (en) | 2015-09-02 | 2015-09-02 | Shedder of high accuracy injection molding |
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| CN (1) | CN204977317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106426790A (en) * | 2016-12-13 | 2017-02-22 | 厦门精卫模具有限公司 | Injection mold capable of controlling mold-opening sequence |
-
2015
- 2015-09-02 CN CN201520675550.3U patent/CN204977317U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106426790A (en) * | 2016-12-13 | 2017-02-22 | 厦门精卫模具有限公司 | Injection mold capable of controlling mold-opening sequence |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Hongji Inventor after: Liu Yongning Inventor before: Hu Hongji Inventor before: Wang Lianhuan |
|
| CB03 | Change of inventor or designer information | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Shedder of high accuracy injection molding Effective date of registration: 20190705 Granted publication date: 20160120 Pledgee: Xiamen finance Company limited by guarantee Pledgor: XIAMEN SURINI PRECISION MOULD CO.,LTD. Registration number: 2019990000668 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200611 Granted publication date: 20160120 Pledgee: Xiamen finance Company limited by guarantee Pledgor: XIAMEN SURINI PRECISION MOULD Co.,Ltd. Registration number: 2019990000668 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361000 Unit 1A, No. 71 Xinglong Road, Huli District, Xiamen, Fujian Patentee after: Chaori (Xiamen) Technology Co.,Ltd. Address before: 361000 Unit 1A, No. 71 Xinglong Road, Huli District, Xiamen, Fujian Patentee before: XIAMEN SURINI PRECISION MOULD CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |