CN102729421A - Plasticization structure in spiral propulsion injection molding device - Google Patents
Plasticization structure in spiral propulsion injection molding device Download PDFInfo
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- CN102729421A CN102729421A CN2012101904752A CN201210190475A CN102729421A CN 102729421 A CN102729421 A CN 102729421A CN 2012101904752 A CN2012101904752 A CN 2012101904752A CN 201210190475 A CN201210190475 A CN 201210190475A CN 102729421 A CN102729421 A CN 102729421A
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Abstract
The invention discloses a plasticization structure in a spiral propulsion injection molding device. The invention relates to the field of mold manufacturing, and especially relates to the plasticization structure in an injection molding device. According to the plasticization structures in prior arts, an injection structure and a plasticization structure are integral. When raw materials are injected, due to high-pressure extrusion, the raw materials will overflow from a raw material port because of the high pressure, and the screw can easily deform due to the extrusion. The invention provides a plasticization structure in a spiral propulsion injection molding device. A check ring and a check pad are arranged in the structure, such that the pressure of raw material injection to the screw, and the pressure of the raw material at the screw head to the subsequent raw material, can be reduced. Also, the raw material can be prevented from overflowing from the raw material port.
Description
Technical field
The present invention relates to mould manufacturing field, particularly, relate to injection device in the injection machine.
Background technology
The plasticizing structure that adopts in the present injection moulding apparatus often is that the ejaculation structure is an one with the plasticizing structure; When raw material penetrated, big content of starting materials alluvial was between screw head and nozzle, because injection moulding apparatus is a screw-pushing type; So a large amount of raw materials push forward; Like this in high pressure extruding raw material can since high pressure overflow from meeting raw material mouth, thereby reduced the pressure that penetrates structure, and since screw spiral to receive the high-pressure extrusion of raw material when pushing also yielding.
Summary of the invention
The objective of the invention is to,, propose to plastify structure in a kind of screw-pushing type injection moulding apparatus, with the advantage that realizes increasing exit wound of bullet pressure and reduce the suffered squeeze pressure of screw rod to the problems referred to above.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is: plastify structure in a kind of screw-pushing type injection moulding apparatus, comprising: nozzle, precursor, screw head, non-return ring, non-return pad, mixing ring, screw rod, machine barrel and fixture,
Said precursor is one cylindrical, and cylindrical outer side is arranged with two convexities, and cylindrical interior is provided with a cylinder shape groove and a cone-shaped groove, and the cone-shaped groove summit is connected with cylinder shape groove bottom centre place,
Said nozzle is cylindrical, and there is a cylindrical hole inside, and nozzle is fixed in the cylinder shape groove of precursor, the cone-shaped groove hanging in nozzle interior through hole and the precursor,
The first end of said screw rod is conical, and the other end is cylindrical, and the conical end of screw head inserts in the precursor cone-shaped groove, and the cylindrical end of screw head passes non-return ring, non-return pad and mixing ring and inserts in the screw rod,
It is outside that said machine barrel is enclosed within non-return ring, non-return pad, mixing ring and screw rod, and two convexities of said precursor are fixedly connected with machine barrel through screw.
Further, said screw head conical bottom surface diameter is identical with non-return ring overall diameter, non-return pad overall diameter, mixing ring overall diameter, screw rod overall diameter and machine barrel interior diameter.
Further, said non-return ring is an annulus, is arranged with two convexities on the annulus ring body, is evenly distributed with four small embossments on the ring body between two convexities.
Further, said non-return pad is an annulus, and annulus inside is provided with convexity.
Further, said mixing ring is cylindrical, and cross section is an annulus, and mixing ring two-port place annulus outer edge caves inward and forms the inner corner trim at an obtuse angle, and the cylindrical centre position of mixing ring is provided with a ring-shaped depression.
Further, said screw rod has screw thread.
Further, said machine barrel interior diameter is 65mm-75mm.
Plastify structure in a kind of screw-pushing type injection moulding apparatus of the present invention, can raw material be concentrated on non-return ring, non-return pad and mixing ring in the space between screw head and the precursor cone-shaped groove owing to comprising; Thereby the raw material mouth that can overcome raw material machine barrel rear portion in the prior art overflows, and screw rod is because high pressure is prone to curved defective, with the advantage that realizes increasing exit wound of bullet pressure and reduce the suffered squeeze pressure of screw rod.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 plastifies structure longitudinal section sketch map in a kind of screw-pushing type injection moulding apparatus according to the present invention;
Fig. 2 plastifies structure non-return pad sketch map in a kind of screw-pushing type injection moulding apparatus according to the present invention;
Fig. 3 plastifies structure precursor sketch map in a kind of screw-pushing type injection moulding apparatus according to the present invention;
Fig. 4 plastifies structure screw head sketch map in a kind of screw-pushing type injection moulding apparatus according to the present invention;
Fig. 5 plastifies the mixing ring sketch map of structure in a kind of screw-pushing type injection moulding apparatus according to the present invention;
Fig. 6 plastifies structure non-return ring sketch map in a kind of screw-pushing type injection moulding apparatus according to the present invention.
In conjunction with accompanying drawing, Reference numeral is following in the embodiment of the invention:
The 1-nozzle; The 2-precursor; The 3-screw head; The 4-non-return ring; 5-non-return pad; The mixing ring of 6-; The 7-screw rod; The 8-machine barrel.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
According to the embodiment of the invention, provide in a kind of screw-pushing type injection moulding apparatus and plastified structure.Shown in Fig. 1-6, present embodiment comprises:
Plastify structure in a kind of screw-pushing type injection moulding apparatus, comprising: nozzle 1, precursor 2, screw head 3, non-return ring 4, non-return pad 5, mixing ring 6, screw rod 7, machine barrel 8 and fixture,
Precursor 2 is one cylindrical, and cylindrical outer side is arranged with two convexities, and cylindrical interior is provided with a cylinder shape groove and a cone-shaped groove, and the cone-shaped groove summit is connected with cylinder shape groove bottom centre place,
Nozzle 1 is cylindrical, and there is a cylindrical hole inside, and nozzle 1 is fixed in the cylinder shape groove of precursor 2, the cone-shaped groove hanging in nozzle 1 interior bone and the precursor 2,
Screw head 3 one ends are conical, and the other end is cylindrical, and screw head 3 conical ends insert in the precursor cone-shaped groove, and screw head 3 cylindrical ends pass non-return ring 4, non-return pad 5 and mixing ring 6 and insert in the screw rod 7,
Machine barrel 8 is enclosed within non-return ring 4, non-return pad 5, mixing ring 6 and screw rod 7 outsides, and 7 two convexities of precursor are fixedly connected with machine barrel through screw.
Screw head 3 conical bottom surface diameters are identical with non-return ring 4 overall diameters, non-return pad 5 overall diameters, mixing ring 6 overall diameters, screw rod 7 overall diameters and machine barrel 8 interior diameters.
Mixing ring 6 is cylindrical, and cross section is an annulus, and mixing ring 6 two-port place annulus outer edges cave inward and form the inner corner trim at an obtuse angle, and mixing ring 6 cylindrical centre positions are provided with a ring-shaped depression.Screw rod 7 has screw thread.Machine barrel 8 interior diameters are 70mm.
Claims (7)
1. plastify structure in a screw-pushing type injection moulding apparatus, it is characterized in that, comprising: nozzle (1), precursor (2), screw head (3), non-return ring (4), non-return pad (5), mixing ring (6), screw rod (7), machine barrel (8) and fixture,
Said precursor (2) is one cylindrical, and cylindrical outer side is arranged with two convexities, and cylindrical interior is provided with a cylinder shape groove and a cone-shaped groove, and the cone-shaped groove summit is connected with cylinder shape groove bottom centre place,
Said nozzle (1) is cylindrical, and there is a cylindrical hole inside, and nozzle (1) is fixed in the cylinder shape groove of precursor (2), the cone-shaped groove hanging in nozzle (1) interior bone and the precursor (2),
Said screw head (3) one ends are conical; The other end is cylindrical; The conical end of screw head (3) inserts in the precursor cone-shaped groove, and the cylindrical end of screw head (3) passes non-return ring (4), non-return pad (5) and mixing ring (6) and inserts in the screw rod (7)
Said machine barrel (8) is enclosed within non-return ring (4), non-return pad (5), mixing ring (6) and screw rod (7) outside, and (7) two convexities of said precursor are fixedly connected with machine barrel through screw.
2. plastify structure in the screw-pushing type injection moulding apparatus according to claim 1; It is characterized in that said screw head (3) conical bottom surface diameter is identical with non-return ring (4) overall diameter, non-return pad (5) overall diameter, mixing ring (6) overall diameter, screw rod (7) overall diameter and machine barrel (8) interior diameter.
3. plastify structure in the screw-pushing type injection moulding apparatus according to claim 1 and 2, it is characterized in that, said non-return ring (4) is an annulus, is arranged with two convexities on the annulus ring body, is evenly distributed with four small embossments on the ring body between two convexities.
4. plastify structure in the screw-pushing type injection moulding apparatus according to claim 1 and 2, it is characterized in that, said non-return pad (5) is an annulus, and annulus inside is provided with convexity.
5. plastify structure in the screw-pushing type injection moulding apparatus according to claim 1 and 2; It is characterized in that; Said mixing ring (6) is cylindrical; Cross section is an annulus, and mixing ring (6) two-port place annulus outer edge caves inward and forms the inner corner trim at an obtuse angle, and the cylindrical centre position of mixing ring (6) is provided with a ring-shaped depression.
6. plastify structure in the screw-pushing type injection moulding apparatus according to claim 1 and 2, it is characterized in that, said screw rod (7) has screw thread.
7. plastify structure in the screw-pushing type injection moulding apparatus according to claim 1 and 2, it is characterized in that, said machine barrel (8) interior diameter is 65mm-75mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101904752A CN102729421A (en) | 2012-06-11 | 2012-06-11 | Plasticization structure in spiral propulsion injection molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101904752A CN102729421A (en) | 2012-06-11 | 2012-06-11 | Plasticization structure in spiral propulsion injection molding device |
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| CN102729421A true CN102729421A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101904752A Pending CN102729421A (en) | 2012-06-11 | 2012-06-11 | Plasticization structure in spiral propulsion injection molding device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201399864Y (en) * | 2009-05-06 | 2010-02-10 | 联塑(杭州)机械有限公司 | Foamed plastic ejecting and shaping device |
| CN101885223A (en) * | 2010-07-06 | 2010-11-17 | 北京化工大学 | Planetary screw mixing integral injection molding machine |
| CN202592684U (en) * | 2012-06-11 | 2012-12-12 | 无锡天惠塑机有限公司 | Plasticization structure in spirally-propelling type injection device |
-
2012
- 2012-06-11 CN CN2012101904752A patent/CN102729421A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201399864Y (en) * | 2009-05-06 | 2010-02-10 | 联塑(杭州)机械有限公司 | Foamed plastic ejecting and shaping device |
| CN101885223A (en) * | 2010-07-06 | 2010-11-17 | 北京化工大学 | Planetary screw mixing integral injection molding machine |
| CN202592684U (en) * | 2012-06-11 | 2012-12-12 | 无锡天惠塑机有限公司 | Plasticization structure in spirally-propelling type injection device |
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Effective date of abandoning: 20121017 |
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