CN2838925Y - The rotary sealing assembly of injection machine - Google Patents
The rotary sealing assembly of injection machine Download PDFInfo
- Publication number
- CN2838925Y CN2838925Y CN 200520058845 CN200520058845U CN2838925Y CN 2838925 Y CN2838925 Y CN 2838925Y CN 200520058845 CN200520058845 CN 200520058845 CN 200520058845 U CN200520058845 U CN 200520058845U CN 2838925 Y CN2838925 Y CN 2838925Y
- Authority
- CN
- China
- Prior art keywords
- glue
- rubber gasket
- screw head
- check ring
- cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a kind of rotary sealing assembly of injection machine, comprise the screw rod that is arranged in the machine barrel, the front end of screw rod was disposed with the glue screw head, crossed the glue check ring and crossed rubber gasket, and it crosses the head of glue screw head, the outside diameter wall of crossing the inner diameter wall of glue check ring and crossing rubber gasket all is evenly equipped with the axial glue groove of crossing that can communicate; Cross the middle part that the glue check ring was socketed in the glue screw head, cross the rear portion that rubber gasket was fixed on the glue screw head; Described glue screw head excessively is an arrow shaped, along the circumferential direction uniform three double wedges of its cone head, and interdental space was the glue groove; Cross the glue check ring and be evenly equipped with six corresponding mistake glue grooves on the rubber gasket excessively.It has changed traditional injection machine glue sealing structure, has complete non-return ability, to keep minimum plastics backflow phenomenon, has significantly reduced the plastics that exist in the injection process and has returned and let out, thereby improved the control accuracy of injection volume.
Description
Technical field
The utility model relates to a kind of injection machine, the rotary sealing assembly in the particularly a kind of injection machine injection mechanism.
Background technology
The screw front end of the injection mechanism of general conventional injection machine was equipped with the glue screw head, cross the glue check ring, cross three parts of rubber gasket, during injection machine work, above-mentioned three parts have been brought into play the effect of unidirectional blocking, the plastics of fusion flow to screw front end by crossing the glue check ring and crossing the glue screw head during plasticizing, during injection under the promotion of molten plastic, cross the glue check ring and returned to rubber gasket place formation hermetically-sealed construction, guarantee when injection molten plastic do not return and let out, this sealing assembly simple in structure, but when sealing at every turn, because melt viscosity changes, factor affecting such as variations in temperature, cross in the glue check ring moving process and to produce the inequality plastics and return and let out, cause the instability of injection control.
The utility model content
The purpose of this utility model is to provide that a kind of simple and reasonable, low cost of manufacture, volume are little, compact conformation, installation is easy, control accuracy the is high rotary sealing assembly of injection machine, improve the control accuracy of injection volume, to overcome weak point of the prior art.
Press the rotary sealing assembly of the injection machine of this purpose design, comprise the screw rod that is arranged in the machine barrel, the front end of screw rod was disposed with the glue screw head, crossed the glue check ring and crossed rubber gasket, and its architectural feature was that the head of glue screw head, the outside diameter wall of crossing the inner diameter wall of glue check ring and crossing rubber gasket all are evenly equipped with the axial glue groove of crossing that can communicate; Cross the middle part that the glue check ring was socketed in the glue screw head, cross the rear portion that rubber gasket was fixed on the glue screw head.During plasticizing, screw rod drove the glue screw head and crossed rubber gasket and rotate together, crossed the glue check ring because the frictional force effect, and crossed rubber gasket and cross to form between the glue screw head and relatively rotate.
Described glue screw head excessively is an arrow shaped, along the circumferential direction uniform three double wedges of its cone head, and interdental space was the glue groove; Cross the glue check ring and be evenly equipped with six corresponding mistake glue grooves on the rubber gasket excessively.
During plasticizing, screw rod drove the glue screw head and crossed rubber gasket and rotate together, cross the glue screw head, cross the glue check ring and cross between the rubber gasket three and formed the passage that molten plastic can flow through, the plastics of fusion flow to screw front end by six grooves crossing the glue check ring.During the plasticizing release, screw rod counter-rotating certain angle has formed enclosed construction between glue screw head and the mistake glue check ring excessively immediately.During injection, cross the glue check ring and need not move backward, reduced the plastics that exist in the injection process and returned and let out, thereby can improve the control accuracy of injection volume.
The utility model has changed traditional injection machine glue sealing structure, has complete non-return ability, to keep minimum plastics backflow phenomenon, has significantly reduced the plastics that exist in the injection process and has returned and let out, thereby improved the control accuracy of injection volume.Cross the glue screw head during plasticizing, cross the glue check ring, cross three parts of rubber gasket and rotate together, partial cut heat has been avoided and the plastics degradation phenomena that causes in the smooth and easy no dead angle of materials flow, the wearing and tearing that relative motion exists have been eliminated, wear-resistant, corrosion-resistant, can be fit to multiple plastics and use.Its control is simple, need not change the hydraulic control system of machine, only needs the change control program to get final product.
Description of drawings
Fig. 1 is the utility model one embodiment material pipe modular construction schematic diagram.The sealing assembly is arranged on its front portion.
Fig. 2 is rotary sealing modular construction schematic diagram; Fig. 3, Fig. 4 are respectively injection state, its side schematic view of melten gel state.
Fig. 5, Fig. 6 were respectively the structural representation of glue screw head and side thereof.
Fig. 7, Fig. 8 were respectively the structural representation of glue check ring and side thereof; Fig. 9 is Fig. 8's
The A-A cutaway view; Figure 10 is the B-B profile of Fig. 9.
Figure 11, Figure 12 were respectively the structural representation of rubber gasket and side thereof.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Figure 1 shows that the material pipe assembly of injection mechanism, it comprises screw rod 6, the nozzle carrier 2 that is arranged on machine barrel 7 front ends and the nozzle 1 that is arranged in the machine barrel 7, and the front end of screw rod 6 was disposed with glue screw head 3, crosses glue check ring 4 and crosses rubber gasket 5.The operation principle of injection machine is similar to the syringe of the usefulness of having an injection, and it is the thrust by screw rod 6 (or plunger), and the plastics of the molten (being viscous state) that plastified are injected in the closed good die cavity, obtains the technical process of goods after solidifying and setting.
The operation program of injection machine is as follows: and nozzle advances → injects → pressurize → preformed → retraction → nozzle retreats → cool off → die sinking → eject → withdraw of the needle → open the door → close the door → and nozzle advances so circulation.Screw rod 6 rotations were squeezed to glue screw head 3 fronts with the plastics fusion.Owing to the check valve that glue check ring 4 is play a part of crossing of screw rod 6 front ends, molten plastic accumulates in the front end of machine barrel 7, and screw rod 6 is compeled to move back backward.When screw rod 6 fell back on preposition, preformed stopped, and screw rod 6 stops operating.And then be retraction action, retraction is that screw rod 6 is done axially retreating of trace, and this action can make the pressure of the melt that accumulates in nozzle 1 place be removed, and prevents " hydrostomia " phenomenon that the imbalance owing to machine barrel 7 external and internal pressures causes.
Referring to Fig. 2, rotary sealing assembly is crossed glue check ring 4 and is crossed rubber gasket 5 compositions by crossing glue screw head 3.Wherein the concrete structure of each part is referring to Fig. 5, Fig. 7, Figure 11.Cross glue screw head 3 and be arrow shaped, along the circumferential direction uniform three double wedges 31 of its cone head, interdental space was a glue groove 33, bar portion is provided with keyway 32.The inner diameter wall of crossing glue check ring 4 all is evenly equipped with six axial glue grooves 41,51 of crossing that can communicate with the outside diameter wall of crossing rubber gasket 5.Cross the middle part that glue check ring 4 was socketed in glue screw head 3, cross rubber gasket 5 was fixed on glue screw head 3 by flat key 8 rear portion.During plasticizing, screw rod 6 drove glue screw head 3 and crossed rubber gasket 5 and rotate together, crossed glue check ring 4 because the frictional force effect, and cross rubber gasket 5 and form between the glue screw head 3 and relatively rotate.
Its operation principle is: during melten gel, screw rod 6 drove glue screw head 3 and crossed rubber gasket 5 and was rotated counterclockwise (from screw rod tail).Cross glue check ring 4 this moment and relatively rotate 60 ° with crossing rubber gasket 5, the glue groove of crossing on crossing glue check ring 4 and crossing rubber gasket 5 is in the position that communicates, and the fusion sizing material can be squeezed to glue screw head 3 front ends.After melten gel finishes, screw rod 6 drove glue screw head 1 and crossed rubber gasket 5 turn clockwise (from screw rod tail), cross glue check ring 4 and cross rubber gasket 5 and oppositely relatively rotate 60 °, the glue groove of crossing above both is in closed state, during injection, sizing material can not reflux from the gap of mistake glue check ring 4 and mistake rubber gasket 5, has improved the control accuracy of injection volume.
Claims (3)
1. the rotary sealing assembly of an injection machine, comprise the screw rod (6) that is arranged in the machine barrel (7), the front end of screw rod was disposed with glue screw head (3), crossed glue check ring (4) and crossed rubber gasket (5), it is characterized in that the head of glue screw head, the outside diameter wall crossing the inner diameter wall of glue check ring and cross rubber gasket all were evenly equipped with axial the glue groove that can communicate; Cross the middle part that the glue check ring was socketed in the glue screw head, cross the rear portion that rubber gasket was fixed on the glue screw head; Screw rod drove the glue screw head and crossed rubber gasket and rotate together.
2. rotary sealing assembly according to claim 1 is characterized in that glue screw head (3) was arrow shaped, along the circumferential direction uniform three double wedges of its cone head (31), and interdental space was glue groove (33); Cross glue check ring (4) and be evenly equipped with six corresponding mistake glue grooves (41,51) on the rubber gasket (5) excessively.
3. rotary sealing assembly according to claim 1 is characterized in that glue screw head (3) and fixedlyed connected for flat key (8) between the rubber gasket (5) excessively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520058845 CN2838925Y (en) | 2005-05-31 | 2005-05-31 | The rotary sealing assembly of injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520058845 CN2838925Y (en) | 2005-05-31 | 2005-05-31 | The rotary sealing assembly of injection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2838925Y true CN2838925Y (en) | 2006-11-22 |
Family
ID=37426911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520058845 Expired - Lifetime CN2838925Y (en) | 2005-05-31 | 2005-05-31 | The rotary sealing assembly of injection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2838925Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538696A (en) * | 2017-10-13 | 2018-01-05 | 东莞市联洲知识产权运营管理有限公司 | One kind injection extruder head sizing material anti-reversing clutch |
| CN108858986A (en) * | 2018-07-21 | 2018-11-23 | 积康螺杆制造（上海）股份有限公司 | A kind of three-piece self-sealing screw head group |
| CN109124796A (en) * | 2018-09-28 | 2019-01-04 | 先临三维科技股份有限公司 | Injection moulding apparatus and its tooth mold forming method |
| CN116586583A (en) * | 2023-05-29 | 2023-08-15 | 伯乐智能装备股份有限公司 | Integrated semi-solid forming process and equipment for continuously preparing magnesium-based composite material |
-
2005
- 2005-05-31 CN CN 200520058845 patent/CN2838925Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538696A (en) * | 2017-10-13 | 2018-01-05 | 东莞市联洲知识产权运营管理有限公司 | One kind injection extruder head sizing material anti-reversing clutch |
| CN108858986A (en) * | 2018-07-21 | 2018-11-23 | 积康螺杆制造（上海）股份有限公司 | A kind of three-piece self-sealing screw head group |
| CN109124796A (en) * | 2018-09-28 | 2019-01-04 | 先临三维科技股份有限公司 | Injection moulding apparatus and its tooth mold forming method |
| CN116586583A (en) * | 2023-05-29 | 2023-08-15 | 伯乐智能装备股份有限公司 | Integrated semi-solid forming process and equipment for continuously preparing magnesium-based composite material |
| CN116586583B (en) * | 2023-05-29 | 2024-03-12 | 伯乐智能装备股份有限公司 | Integrated semi-solid forming process and equipment for continuously preparing magnesium-based composite material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG YIZUMI PRECISION MACHINERY CO., LTD. Free format text: FORMER NAME: YIZHIMI PRECISION MACHINERY CO., LTD., FOSHAN |
|
| CP03 | Change of name, title or address |
Address after: 528300 Guangdong province Foshan city Shunde high tech Zone (Ronggui) No. 22 Keyuan Road three Patentee after: Guangdong Yizumi Precision Machinery Co., Ltd. Address before: 528300 Guangdong province Foshan city Shunde District Ronggui Street four No. 47 West Jiaolu Patentee before: Yizhimi Precision Machinery Co., Ltd., Foshan |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150531 Granted publication date: 20061122 |