CN104369330B - Vented screw group - Google Patents
Vented screw group Download PDFInfo
- Publication number
- CN104369330B CN104369330B CN201410631160.6A CN201410631160A CN104369330B CN 104369330 B CN104369330 B CN 104369330B CN 201410631160 A CN201410631160 A CN 201410631160A CN 104369330 B CN104369330 B CN 104369330B
- Authority
- CN
- China
- Prior art keywords
- meson
- screw head
- screw
- air discharge
- discharge duct
- 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.)
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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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/60—Screws
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/63—Venting or degassing means
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/60—Screws
- B29C2045/605—Screws comprising a zone or shape enhancing the degassing of the plastic material
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of vented screw group, including screw head group and screw rod, the screw head group includes screw head, preceding meson, check ring, meson and exhaust gaskets afterwards, the side of the screw head at least offers an axially disposed air discharge duct, the preceding meson, check ring and rear meson are sequentially sleeved on screw head from front to back, coordinate between the check ring and the screw head for gap, the exhaust gaskets are arranged on screw head, and in the gap of check ring and screw head, the preceding meson, afterwards air discharge duct is offered on the end face of meson and exhaust gaskets, the screw rod is connected to the rear end of screw head.Compared with prior art, because the appropriate location of all parts in screw head group has opened up air discharge duct so that the air under molten condition in plastics can discharge along above-mentioned air discharge duct, can improve product quality, raising efficiency, while can also save the investment of drying equipment.
Description
Technical field
The present invention relates to a kind of screw in injection molding machine group, more particularly to a kind of vented screw group.
Background technology
Plastic product has two kinds of gas sources in shaping：
A, plastics are not completely dried, and moisture is contained in plastics, and in heating, moisture can become vapor；Such as to solve plastics
Middle moisture drying problem, need to just lengthen the baking material time or use advanced material drying equipment, but be which kind of mode used without human relations, all without
Method is completely dried plastics 100%, because humidity in air be present.And the screw rod group of existing injection machine does not possess in exhaust work(
Can so that above-mentioned moisture can not exclude completely.
B, plastics are in metering, and expects pipe internal volume is not completely filled with plastic real close, and being directed between plastics has gap and have time
Gas (says that the plastic density for being exactly to melt is inadequate with industry slang).Because the screw rod group of existing injection machine does not possess in exhaust work(
Can, if to solve the problems, such as above-mentioned plastic density, it is necessary to increase the back pressure of machine, and screw head and screw rod can be made by improving back pressure
Unstable wear, and molding cycle time can be increased, production efficiency can be reduced.
The content of the invention
The invention provides a kind of vented screw group, is arranged to solve to exist in the prior art air in plastic moulding process
Go out the problem of bad.
The invention provides a kind of vented screw group, including screw head group and screw rod, the screw head group include screw head,
Preceding meson, check ring, rear meson and exhaust gaskets, the side of the screw head at least offer an axially disposed exhaust
Groove, the preceding meson, check ring and rear meson are sequentially sleeved on screw head from front to back, the check ring and the screw head
Between coordinate for gap, the exhaust gaskets are arranged on screw head, and in the gap of check ring and screw head, are situated between before described
Air discharge duct is offered on the end face of sub, rear meson and exhaust gaskets, the screw rod is connected to the rear end of screw head.
Further, the inside of the screw rod offer axially through exhaust hole.
Further, the air discharge duct of the preceding meson is opened on its front end face, the row of the rear meson and exhaust gaskets
Air drain is opened up in its back-end on face.
Further, the quantity of the exhaust gaskets is 1-20, and the quantity of the rear meson is 1-10, the screw rod
The quantity of the air discharge duct in rostral face is 1-20, and the quantity of each preceding meson, rear meson and the air discharge duct on exhaust gaskets is
1-30.
Further, the circular arc degree of the air discharge duct of the screw head side is 0.1-30mm, depth 0.1-30mm, described
The width of preceding meson, rear meson and the air discharge duct on exhaust gaskets is 1-10mm, depth 0.003-0.1mm.
Present invention also offers another vented screw group, including screw head group and screw rod, the screw head group includes spiral shell
Head, check ring and rear meson, the side of the screw head at least offers an axially disposed air discharge duct, described non-return
Ring and rear meson are sequentially sleeved on screw head from front to back, are coordinated between the check ring and the screw head for gap, institute
State and air discharge duct is offered on the end face of rear meson, the screw rod is connected to the rear end of screw head.
Further, the inside of the screw rod offer axially through exhaust hole.
Further, the air discharge duct of the rear meson is opened up in its back-end on face.
Further, the quantity of the rear meson is 1-10, and the quantity of the air discharge duct of the screw head side is 1-20
Individual, the quantity of the air discharge duct on each rear meson is 1-30.
Further, the circular arc degree of the air discharge duct of the screw head side is 0.1-30mm, depth 0.1-30mm, described
The width of the air discharge duct on meson is 1-10mm, depth 0.003-0.1mm afterwards.
The present invention has the beneficial effect that：Because the appropriate location of all parts in screw head group has opened up air discharge duct, make
Obtaining the air under molten condition in plastics can discharge along above-mentioned air discharge duct, can improve product quality, raising efficiency, while also can
Save the investment of drying equipment.
Brief description of the drawings
Fig. 1 is the structural representation of the first vented screw group provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of screw head group in the embodiment of the present invention；
Fig. 3 is the structural representation of screw head in screw head group；
Fig. 4 is the schematic cross-section of Fig. 3 screw heads；
Fig. 5 is the structural representation of preceding meson in screw head group；
Fig. 6 be Fig. 5 before meson A-A to schematic cross-section；
Fig. 7 is the structural representation of exhaust gaskets in screw head group；
Fig. 8 be Fig. 7 exhaust gaskets A-A to schematic cross-section；
Fig. 9 is the structural representation of rear meson in screw head group；
Figure 10 be Fig. 9 after meson A-A to schematic cross-section；
Figure 11 is the structural representation of second of vented screw group provided in an embodiment of the present invention；
Figure 12 is the structural representation of the third vented screw group provided in an embodiment of the present invention；
The structural representation of another screw head group in Figure 13 embodiment of the present invention；
Figure 14 is the structural representation of the 4th kind of vented screw group provided in an embodiment of the present invention；
In figure, 1 is screw head group, and 11 be screw head, and 111 be the air discharge duct on screw head, and 12 be preceding meson, before 121 are
Air discharge duct on meson, 13 be check ring, and 14 be rear meson, and 141 be the air discharge duct on rear meson, and 15 be exhaust gaskets, and 151 are
Air discharge duct on exhaust gaskets, 2 be screw rod, and 21 be exhaust hole.
Embodiment
The embodiment of the present invention is described in further detail with reference to Figure of description.
Embodiment
The first vented screw group provided in an embodiment of the present invention is as shown in figure 1, including screw head group 1 and screw rod 2.Screw rod
Head group 1 includes screw head 11, preceding meson 12, check ring 13, rear meson 14 and exhaust gaskets 15, as shown in figs. 2-10, in screw rod
First 11 side at least offers an axially disposed air discharge duct 111, and preceding meson 12, check ring 13 and rear meson 14 are by preceding
It is sequentially sleeved at after on screw head 11, coordinates between check ring 13 and screw head 11 for gap, exhaust gaskets 15 is arranged screw rod
On first 11, and in gap of the check ring 13 with screw head 11, on the end face of preceding meson 12, rear meson 14 and exhaust gaskets 15
Air discharge duct 121,141,151 is offered, screw rod 2 is connected to the rear end of screw head 11.
In above-mentioned vented screw group, screw head group 1 employs Combined exhaust air screw head group, wherein exhaust gaskets 15, after
The quantity of meson 14 can determine that generally, the quantity of exhaust gaskets is 1-20, rear meson according to the actual requirements
Quantity be 1-10.In the present embodiment, the screw head group 1 is by the preceding 12, check rings of meson of a screw head 11, one
13rd, meson 14 and four exhaust gaskets 15 after one, totally 8 parts compositions.Four exhaust gaskets 15 cover successively from front to back
If.
The air discharge duct 121 of preceding meson is opened on its front end face, and the air discharge duct 141,151 of rear meson and exhaust gaskets is opened
It is located at thereafter on end face.Because the effect of air discharge duct is to discharge gas, if setting is excessive, material leakage phenomenon can be produced, is unfavorable for
Production；If setting is too small, gas can be caused can not smoothly to be discharged from air discharge duct, so as to influence exhaust effect.Therefore needs pair
The quantity and size of air discharge duct carry out a definite limitation, to ensure to reach on the premise of material leakage is not produced preferably exhaust effect
Fruit.Generally, the quantity of air discharge duct 111 on screw head can be 1-20, and using deep-slotted chip breaker, its circular arc degree is 0.1-
30mm, depth 0.1-30mm, the air discharge duct 121 on preceding meson, the row on air discharge duct 141 and exhaust gaskets on rear meson
Air drain 151 can set 1-30 respectively, and using rectangular channel, its width is 3mm, depth 0.003-0.1mm.
In the present embodiment, the relative position of screw head side sets the air discharge duct 111 of two, from the front end of preceding meson 12
One through to the rear end of screw head 11 at face.The air discharge duct 141 and vent pads on air discharge duct 121, rear meson on preceding meson
Air discharge duct 151 on piece sets eight respectively, is circumferentially evenly distributed, its depth can be preferably provided with 0.005-0.01mm.
Screw rod 2 then employs vented screw, the inside of the screw rod 2 offer axially through exhaust hole 21, positioned at spiral shell
The center of bar, from screw front end through to spiro rod rear end.Connection between screw rod 2 and screw head 11, which uses, to be threadedly coupled,
The side at the rear portion (position goes out rear meson rearward) on screw head 11 offers one section of external screw thread, and relatively the front end of screw rod 2 is set
There is a screwed hole, be connected by internal thread corresponding to screwed hole inwall with screw head.When in use, the air in molten plastic
Air discharge duct can be entered, and the exhaust hole discharge for thering is air discharge duct to imported into inside screw.
Screw rod 2 can equally use common screw, form vented screw group as shown in figure 11.Although common screw does not have
Straight-through exhaust hole, but the gas in plastics can be discharged to the rear of rear meson by the air discharge duct in screw head group so that
Meson previous section (metering section) can equally reach exhaust effect without gas afterwards.
The embodiment of the present invention additionally provides vented screw group in as shown in figure 12 the 3rd, including screw head group 1 and screw rod
2.Screw head group 1 employs master screw head group, as shown in figure 13, including screw head 11, check ring 13 and rear meson 14, screw rod
First 11 side at least offers an axially disposed air discharge duct 111, and check ring 13 and rear meson 14 are from front to back successively
It is set on screw head 11, coordinates between check ring 13 and screw head 11 for gap, exhaust is offered on the end face of rear meson 14
Groove 141, screw rod 2 are connected to the rear end of screw head 1.Its screw rod 2 then employs vented screw, and the inside of the screw rod 2 offers axle
To the exhaust hole 21 of insertion, positioned at the center of screw rod, from screw front end through to spiro rod rear end.
In the vented screw group, the air discharge duct 141 of rear meson is opened up in its back-end on face, rear meson 14, screw head side
Air discharge duct 111, air discharge duct 141 on rear meson quantity and size can refer to exhaust spiral shell as shown in Fig. 1 or 11
Bar group.Wherein, the air discharge duct 111 on screw head can be extended to the rear end of screw head by the front end face of rear meson.
Similarly, screw rod 2 can also use common screw, form vented screw group as shown in figure 14.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (3)
1. a kind of vented screw group, including screw head group and screw rod, it is characterised in that the screw head group includes screw head, preceding
Meson, check ring, rear meson and exhaust gaskets, the side of the screw head at least offer an axially disposed exhaust
Groove, the preceding meson, check ring and rear meson are sequentially sleeved on screw head from front to back, the check ring and the screw head
Between coordinate for gap, the exhaust gaskets are arranged on screw head, and in the gap of check ring and screw head, are situated between before described
Air discharge duct is offered on the end face of sub, rear meson and exhaust gaskets, the screw rod is connected to the rear end of screw head, the screw rod
Inside offer axially through exhaust hole, the air discharge duct of the preceding meson is opened on its front end face, it is described after meson
It is opened in the air discharge duct of exhaust gaskets on respective rear end face.
2. the vented screw group according to claim 1, it is characterised in that the quantity of the exhaust gaskets is 1-20,
The quantity of meson is 1-10 after described, and the quantity of the air discharge duct of the screw head side is 1-20, each preceding meson, after
The quantity of air discharge duct on meson and exhaust gaskets is 1-30.
3. the vented screw group according to claim 1, it is characterised in that the circular arc of the air discharge duct of the screw head side
Spend for 0.1-30mm, depth 0.1-30mm, the width of the preceding meson, rear meson and the air discharge duct on exhaust gaskets is 1-
10mm, depth 0.003-0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631160.6A CN104369330B (en) | 2014-11-11 | 2014-11-11 | Vented screw group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631160.6A CN104369330B (en) | 2014-11-11 | 2014-11-11 | Vented screw group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104369330A CN104369330A (en) | 2015-02-25 |
| CN104369330B true CN104369330B (en) | 2017-12-12 |
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ID=52548652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410631160.6A Active CN104369330B (en) | 2014-11-11 | 2014-11-11 | Vented screw group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104369330B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799346A (en) * | 2021-08-04 | 2021-12-17 | 昆山又二贝精密机械有限公司 | Check type screw head assembly design and production process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3693809B2 (en) * | 1998-04-07 | 2005-09-14 | 住友重機械工業株式会社 | Backflow prevention device |
| CN202952507U (en) * | 2012-12-21 | 2013-05-29 | 浙江金星螺杆制造有限公司 | Glue dividing head unit for screw of wear-resisting injection molding machine |
| CN103434099B (en) * | 2013-08-06 | 2015-12-02 | 浙江德库玛机械有限公司 | The compression injection method of injection machine |
| CN103921414A (en) * | 2014-03-22 | 2014-07-16 | 肖加云 | Combined type screw head |
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2014
- 2014-11-11 CN CN201410631160.6A patent/CN104369330B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104369330A (en) | 2015-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Jiayun Inventor after: Xiao Rui Inventor before: Xiao Jiayun |
|
| COR | Change of bibliographic data | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170125 Address after: 201611 Shanghai City, Songjiang District Road No. 88 3 Jing building 1 Room 102 Applicant after: Limited by Share Ltd (Shanghai) Co., Ltd. Address before: The 4 group of 415332 Changde city of Hunan province Shimenn County South Zhen Bai Zhu Wu Cun Applicant before: Xiao Jiayun |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 201616 Lane No. 2, 399, Central Road, Xiaokunshan Town, Songjiang District, Shanghai Patentee after: Limited by Share Ltd (Shanghai) Co., Ltd. Address before: Room 102, Floor 1, Building 3, No. 88 Jingche Road, Songjiang District, Shanghai, 20161 Patentee before: Limited by Share Ltd (Shanghai) Co., Ltd. |
|
| CP02 | Change in the address of a patent holder |