CN104369330A - Exhaust screw assembly - Google Patents
Exhaust screw assembly Download PDFInfo
- Publication number
- CN104369330A CN104369330A CN201410631160.6A CN201410631160A CN104369330A CN 104369330 A CN104369330 A CN 104369330A CN 201410631160 A CN201410631160 A CN 201410631160A CN 104369330 A CN104369330 A CN 104369330A
- Authority
- CN
- China
- Prior art keywords
- meson
- screw
- air discharge
- screw head
- 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.)
- Granted
Links
- 229920003023 plastic Polymers 0.000 abstract description 14
- 239000004033 plastic Substances 0.000 abstract description 14
- 238000001035 drying Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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 an exhaust screw assembly. The exhaust screw assembly comprises a screw head assembly and a screw, wherein the screw head assembly comprises a screw head, a front washer, a check ring, a rear washer and an exhaust gasket; at least one exhaust groove is formed axially in the side surface of the screw head; the front washer, the check ring and the rear washer sleeve the screw head orderly from front to back; the check ring is in clearance fit with the screw head; the exhaust gasket sleeves the screw head and is located in the gap between the check ring and the screw head; exhaust grooves are formed in the end faces of all the front washer, the rear washer and the exhaust gasket; the screw is connected to the rear end of the screw head. Compared with the prior art, as the exhaust grooves are formed in every part of the screw head assembly at appropriate positions, air in molten plastics can be discharged via the exhaust grooves, and therefore, both product quality and efficiency can be improved, and meanwhile, the investment on drying equipment also can be saved.
Description
Technical field
The present invention relates to a kind of screw in injection molding machine group, particularly a kind of vented screw group.
Background technology
Plastic product in shaping, has two kinds of gas sources:
The non-bone dry of A, plastics, containing moisture in plastics, when heating, moisture can become steam; As moisture drying problem in plastics will be solved, just need lengthen and dry the material time or adopt advanced baking material equipment, but be adopt which kind of mode without human relations, all cannot make plastics 100% bone dry, because there is humidity in air.And the screw rod group of existing injection machine does not possess at degassing function, above-mentioned moisture cannot be got rid of completely.
B, plastics are when measuring, and material pipe internal volume is not completely filled with plastic real close, are directed at and have gap between plastics and have air (saying to be exactly that the plastic density of melting is inadequate with industry slang).Because the screw rod group of existing injection machine does not possess at degassing function, if solve the problem of above-mentioned plastic density, the back pressure of machine must be increased, and improve back pressure and can make screw head and screw rod unstable wear, and can molding cycle time be increased, can production efficiency be reduced.
Summary of the invention
The invention provides a kind of vented screw group, there is air in plastic moulding process discharge bad problem in order to solve in prior art.
The invention provides a kind of vented screw group, comprise screw rod head group and screw rod, described screw rod head group comprises screw head, front meson, check ring, rear meson and exhaust gaskets, the side of described screw head at least offers an air discharge duct arranged vertically, described front meson, check ring and rear meson are set on screw head from front to back successively, it is matched in clearance between described check ring and described screw head, on the sheathed screw head of described exhaust gaskets, and be positioned at the gap of check ring and screw head, described front meson, the end face of rear meson and exhaust gaskets all offers air discharge duct, described screw rod is connected to the rear end of screw head.
Further, the inside of described screw rod offers axially through exhaust hole.
Further, the air discharge duct of described front meson is opened on its front end face, and the air discharge duct of described rear meson and exhaust gaskets is opened in thereafter on end face.
Further, the quantity of described exhaust gaskets is 1-20, and the quantity of described rear meson is 1-10, and the quantity of the air discharge duct of described screw head side is 1-20, and the quantity of the air discharge duct on each front meson, rear meson and exhaust gaskets is 1-30.
Further, the circular arc degree of the air discharge duct of described screw head side is 0.1-30mm, and the degree of depth is 0.1-30mm, and the width of the air discharge duct on described front meson, rear meson and exhaust gaskets is 1-10mm, and the degree of depth is 0.003-0.1mm.
Present invention also offers another kind of vented screw group, comprise screw rod head group and screw rod, described screw rod head group comprises screw head, check ring and rear meson, the side of described screw head at least offers an air discharge duct arranged vertically, described check ring and rear meson are set on screw head from front to back successively, be matched in clearance between described check ring and described screw head, the end face of described rear meson offers air discharge duct, and described screw rod is connected to the rear end of screw head.
Further, the inside of described screw rod offers axially through exhaust hole.
Further, the air discharge duct of described rear meson is opened in thereafter on end face.
Further, the quantity of described rear meson is 1-10, and the quantity of the air discharge duct of described screw head side is 1-20, and 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 described screw head side is 0.1-30mm, and the degree of depth is 0.1-30mm, and the width of the air discharge duct on described rear meson is 1-10mm, and the degree of depth is 0.003-0.1mm.
Beneficial effect of the present invention is as follows: air discharge duct has been offered in the appropriate location due to all parts in screw rod head group, air under molten condition in plastics can be discharged along above-mentioned air discharge duct, can improve the quality of products, raising efficiency, also can save the investment of drying equipment simultaneously.
Accompanying drawing explanation
The structural representation of the first vented screw group that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the structural representation of a kind of screw rod head group in the embodiment of the present invention;
Fig. 3 is the structural representation of screw head in screw rod head group;
Fig. 4 is the schematic cross-section of Fig. 3 screw head;
Fig. 5 is the structural representation of front meson in screw rod head group;
Fig. 6 be before Fig. 5 meson A-A to schematic cross-section;
Fig. 7 is the structural representation of exhaust gaskets in screw rod 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 rod head group;
Figure 10 be after Fig. 9 meson A-A to schematic cross-section;
The structural representation of the second vented screw group that Figure 11 provides for the embodiment of the present invention;
The structural representation of the third vented screw group that Figure 12 provides for the embodiment of the present invention;
The structural representation of another kind of screw rod head group in Figure 13 embodiment of the present invention;
The structural representation of the 4th kind of vented screw group that Figure 14 provides for the embodiment of the present invention;
In figure, 1 is screw rod head group, and 11 is screw head, 111 is the air discharge duct on screw head, 12 is front meson, and 121 is the air discharge duct on front meson, and 13 is check ring, 14 is rear meson, 141 is the air discharge duct on rear meson, and 15 is exhaust gaskets, and 151 is the air discharge duct on exhaust gaskets, 2 is screw rod, and 21 is exhaust hole.
Detailed description of the invention
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
Embodiment
The first vented screw group that the embodiment of the present invention provides as shown in Figure 1, comprises screw rod head group 1 and screw rod 2.Screw rod head group 1 comprises screw head 11, front meson 12, check ring 13, rear meson 14 and exhaust gaskets 15, as shown in figs. 2-10, an air discharge duct arranged vertically 111 is at least offered in the side of screw head 11, front meson 12, check ring 13 and rear meson 14 are set on screw head 11 from front to back successively, it is matched in clearance between check ring 13 and screw head 11, on the sheathed screw head 11 of exhaust gaskets 15, and be positioned at the gap of check ring 13 and screw head 11, front meson 12, the end face of rear meson 14 and exhaust gaskets 15 all offers air discharge duct 121, 141, 151, screw rod 2 is connected to the rear end of screw head 11.
In above-mentioned vented screw group, screw rod head group 1 have employed Combined exhaust air screw rod head group, and wherein the quantity of exhaust gaskets 15, rear meson 14 all can be determined according to the actual requirements, generally, the quantity of exhaust gaskets is 1-20, and the quantity of rear meson is 1-10.In the present embodiment, this screw rod head group 1 is by meson 14 and four exhaust gaskets 15 after the front meson of a screw head 11,12, check ring 13, and totally 8 parts form.Four exhaust gaskets 15 are sheathed successively from front to back.
The air discharge duct 121 of front meson is opened on its front end face, and the air discharge duct 141,151 of rear meson and exhaust gaskets is opened in thereafter on end face.Because the effect of air discharge duct is Exhaust Gas, if arrange excessive, can produce and Lou expect phenomenon, be unfavorable for producing; If arrange too small, then gas can be made cannot to discharge smoothly from air discharge duct, thus affect exhaust effect.Therefore need to carry out a definite limitation to the quantity of air discharge duct and size, to ensure that the prerequisite not producing Lou material is issued to good exhaust effect.Generally, air discharge duct 111 quantity on screw head can be 1-20, adopt deep-slotted chip breaker, its circular arc degree is 0.1-30mm, the degree of depth is 0.1-30mm, and the air discharge duct 151 on the air discharge duct 121 on front meson, the air discharge duct 141 on rear meson and exhaust gaskets can arrange 1-30 respectively, adopts rectangular channel, its width is 3mm, and the degree of depth is 0.003-0.1mm.
In the present embodiment, the relative position of screw head side arranges the air discharge duct 111 of two, and in the past the front end face place one of meson 12 is through to the rear end of screw head 11.Air discharge duct 151 on air discharge duct 121 on front meson, the air discharge duct 141 on rear meson and exhaust gaskets arranges eight respectively, and be circumferentially evenly distributed, its degree of depth preferably can arrange 0.005-0.01mm.
Screw rod 2 have employed vented screw, and the inside of this screw rod 2 offers axially through exhaust hole 21, is positioned at the center of screw rod, from screw front end through to spiro rod rear end.Connection between screw rod 2 with screw head 11 adopts and is threaded, the side opening at the rear portion (rear meson rearward position goes out) on screw head 11 is provided with one section of external screw thread, relatively the front end of screw rod 2 is provided with a screwed hole, and the internal thread corresponding by screwed hole inwall is connected with screw head.In use, the air in molten plastic can enter air discharge duct, and the exhaust hole having air discharge duct to import to inside screw is discharged.
Screw rod 2 can adopt common screw equally, forms vented screw group as shown in figure 11.Although common screw does not have straight-through exhaust hole, by the air discharge duct in screw rod head group, the gas in plastics is discharged to the rear of rear meson, makes rear meson previous section (metering section) without gas, can exhaust effect be reached equally.
The embodiment of the present invention additionally provide as shown in figure 12 the 3rd in vented screw group, comprise screw rod head group 1 and screw rod 2.Screw rod head group 1 have employed master screw head group, as shown in figure 13, comprise screw head 11, check ring 13 and rear meson 14, the side of screw head 11 at least offers an air discharge duct arranged vertically 111, check ring 13 and rear meson 14 are set on screw head 11 from front to back successively, be matched in clearance between check ring 13 and screw head 11, the end face of rear meson 14 offers air discharge duct 141, and screw rod 2 is connected to the rear end of screw head 1.Its screw rod 2 have employed vented screw, and the inside of this screw rod 2 offers axially through exhaust hole 21, is positioned at the center of screw rod, from screw front end through to spiro rod rear end.
In this vented screw group, the air discharge duct 141 of rear meson is opened in thereafter on end face, and the quantity of the air discharge duct 141 on the air discharge duct 111 of rear meson 14, screw head side, rear meson and size all can refer to the vented screw group as shown in Fig. 1 or 11.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 also can adopt common screw, forms vented screw group as shown in figure 14.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a vented screw group, comprise screw rod head group and screw rod, it is characterized in that, described screw rod head group comprises screw head, front meson, check ring, rear meson and exhaust gaskets, the side of described screw head at least offers an air discharge duct arranged vertically, described front meson, check ring and rear meson are set on screw head from front to back successively, it is matched in clearance between described check ring and described screw head, on the sheathed screw head of described exhaust gaskets, and be positioned at the gap of check ring and screw head, described front meson, the end face of rear meson and exhaust gaskets all offers air discharge duct, described screw rod is connected to the rear end of screw head.
2. vented screw group according to claim 1, is characterized in that, the inside of described screw rod offers axially through exhaust hole.
3. vented screw group according to claim 1, is characterized in that, the air discharge duct of described front meson is opened on its front end face, and the air discharge duct of described rear meson and exhaust gaskets is opened in thereafter on end face.
4. vented screw group according to claim 1, it is characterized in that, the quantity of described exhaust gaskets is 1-20, the quantity of described rear meson is 1-10, the quantity of the air discharge duct of described screw head side is 1-20, and the quantity of the air discharge duct on each front meson, rear meson and exhaust gaskets is 1-30.
5. vented screw group according to claim 1, it is characterized in that, the circular arc degree of the air discharge duct of described screw head side is 0.1-30mm, and the degree of depth is 0.1-30mm, the width of the air discharge duct on described front meson, rear meson and exhaust gaskets is 1-10mm, and the degree of depth is 0.003-0.1mm.
6. a vented screw group, comprise screw rod head group and screw rod, it is characterized in that, described screw rod head group comprises screw head, check ring and rear meson, the side of described screw head at least offers an air discharge duct arranged vertically, and described check ring and rear meson are set on screw head from front to back successively, is matched in clearance between described check ring and described screw head, the end face of described rear meson offers air discharge duct, and described screw rod is connected to the rear end of screw head.
7. vented screw group according to claim 6, is characterized in that, the inside of described screw rod offers axially through exhaust hole.
8. vented screw group according to claim 6, is characterized in that, the air discharge duct of described rear meson is opened in thereafter on end face.
9. vented screw group according to claim 6, is characterized in that, the quantity of described rear meson is 1-10, and the quantity of the air discharge duct of described screw head side is 1-20, and the quantity of the air discharge duct on each rear meson is 1-30.
10. vented screw group according to claim 6, is characterized in that, the circular arc degree of the air discharge duct of described screw head side is 0.1-30mm, and the degree of depth is 0.1-30mm, and the width of the air discharge duct on described rear meson is 1-10mm, and the degree of depth is 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 true CN104369330A (en) | 2015-02-25 |
| CN104369330B CN104369330B (en) | 2017-12-12 |
Family
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) |
Cited By (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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11291306A (en) * | 1998-04-07 | 1999-10-26 | Sumitomo Heavy Ind Ltd | Back flow preventing apparatus |
| 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 |
| CN103434099A (en) * | 2013-08-06 | 2013-12-11 | 浙江德库玛机械有限公司 | Compressing glue injection method of injection molding machine |
| CN103921414A (en) * | 2014-03-22 | 2014-07-16 | 肖加云 | Combined type screw head |
-
2014
- 2014-11-11 CN CN201410631160.6A patent/CN104369330B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11291306A (en) * | 1998-04-07 | 1999-10-26 | Sumitomo Heavy Ind Ltd | Back flow preventing apparatus |
| 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 |
| CN103434099A (en) * | 2013-08-06 | 2013-12-11 | 浙江德库玛机械有限公司 | Compressing glue injection method of injection molding machine |
| CN103921414A (en) * | 2014-03-22 | 2014-07-16 | 肖加云 | Combined type screw head |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104369330B (en) | 2017-12-12 |
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| 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 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| 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. |