CN105415582A - Filtering nozzle for injection molding machine with cleaning device - Google Patents
Filtering nozzle for injection molding machine with cleaning device Download PDFInfo
- Publication number
- CN105415582A CN105415582A CN201510940166.6A CN201510940166A CN105415582A CN 105415582 A CN105415582 A CN 105415582A CN 201510940166 A CN201510940166 A CN 201510940166A CN 105415582 A CN105415582 A CN 105415582A
- Authority
- CN
- China
- Prior art keywords
- hole
- nozzle
- section
- nozzle body
- communicates
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- 238000001914 filtration Methods 0.000 title abstract description 6
- 238000001746 injection moulding Methods 0.000 title abstract description 5
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- B29C45/20—Injection nozzles
-
- 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
- B29C45/1753—Cleaning or purging, e.g. of the injection unit
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a filtering nozzle for an injection molding machine with a cleaning device. The filtering nozzle comprises a nozzle body; a stepped central through hole is formed in the nozzle body; a limiting portion extending outwards and radially is formed on an outer wall of the back of the nozzle body; a nozzle head extending forwards and axially is formed in the middle of a front end of the nozzle body; an axial nozzle hole is formed in the middle of the nozzle head and communicates with the stepped central through hole; the front portion of the stepped central through hole is a small-diameter section; a screw-joint through hole is formed in a sidewall of the small-diameter section, and a bottom supporting end cover, a middle connecting threaded sleeve and a top connecting sleeve are arranged in the screw-joint through hole in a screw-joint manner; the bottom supporting end cover is close to the small-diameter section; a top end of the top connecting sleeve extends out of an outer sidewall of the nozzle body; and the middle connecting threaded sleeve is clamped between the bottom supporting end cover and the top connecting sleeve; the nozzle body and the nozzle head of the filtering nozzle are molded together to ensure strength; and the nozzle hole is convenient to clean.
Description
Technical field:
The present invention relates to injection machine accessory technical field, relate to a kind of injection machine filter-type nozzle with cleaning device in particular.
Background technology:
The material melts of injection machine is realized by rubber melting cylinder assembly.Uniform injecting products to be produced under certain back pressure, particularly for the injection moulding of the good plastic material of mobility, and in order to ensure injection moulding effect, need the nozzle adopted can filter the plastic material of injection moulding, and the nozzle head in existing nozzle body is molded directly within nozzle body, the nozzle bore of its nozzle head is not easy cleaning, makes nozzle often need to replace, bother very much, and increase cost.
Therefore existing a lot of mode is that nozzle head is separated with nozzle body, and to facilitate cleaning, but its intensity have dropped, and also reduces the life-span of use accordingly.
Summary of the invention:
The object of the invention is to overcome the deficiencies in the prior art, a kind of injection machine filter-type nozzle with cleaning device is provided, together with its nozzle body is shaping with nozzle head, proof strength, and also washer jet hole is convenient.
The scheme that the present invention solve the technical problem is:
A kind of injection machine filter-type nozzle with cleaning device, comprise nozzle body, there is in described nozzle body notch cuttype central through hole, the rear portion outer wall of nozzle body has the limiting section of outward radial extension, the front center of nozzle body has axially extended nozzle head forward, the middle part of nozzle head has axial nozzle bore, and nozzle bore communicates with notch cuttype central through hole;
The front portion of described stepped central through hole is reduced diameter section, the sidewall of reduced diameter section forms the through hole that is spirally connected, be spirally connected in through hole and be bolted with bottom support end cap, middle part connects swivel nut and top adapter sleeve, bottom support end cap is near reduced diameter section, the lateral wall of nozzle body is stretched out on the top of top adapter sleeve, middle part connects swivel nut and is clamped between bottom support end cap and top adapter sleeve, the middle middle part connecting swivel nut has the vertical through hole of stairstepping, the lower end of the vertical through hole of stairstepping is large diameter hole section, the upper end of the vertical through hole of stairstepping is small diameter bore section, spring and ball sleeve are in the lower end of the vertical through hole of stairstepping, bottom support end cap is put forth effort in the lower end of spring, ball is put forth effort in the upper end of spring, on the top end face that ball is pressed against the large diameter hole section of the vertical through hole of stairstepping and the bottom of the small diameter bore section of the trapezoidal vertical through hole of order of covering, the madial wall of the large diameter hole section of the vertical through hole of described stairstepping has lateral through aperture, the front outsides wall of nozzle body has vertical screw, nozzle body wall between vertical screw and lateral through aperture has lateral connection hole, the one end in lateral connection hole communicates with the middle part of vertical screw, another end in lateral connection hole communicates with lateral through aperture, the madial wall of the reduced diameter section of stepped central through hole has oblique hole, the rear end in oblique hole communicates with the bottom of vertical screw, the front end in oblique hole is near reduced diameter section, the rear end in oblique hole is away from reduced diameter section.
Be bolted with screw rod in described vertical screw, the head of screw rod is pressed against on the lateral wall of nozzle body, and the bottom of screw rod is lower than lateral connection hole.
The rear portion of described stepped central through hole is enlarged diameter section, the madial wall of enlarged diameter section has internal thread, the main rear portion crossing filter ruffle has major diameter adapter sleeve, major diameter adapter sleeve is screwed onto in enlarged diameter section, the front end face of major diameter adapter sleeve is pressed against the front end face of enlarged diameter section, main filtration inserting is enclosed within reduced diameter section, the main anterior sidewall crossing filter ruffle has main filter bores, the main middle part crossing filter ruffle has center opening, center opening communicates with main filter bores, center opening communicates with major diameter adapter sleeve, main mistake between the front outsides wall of filter ruffle and reduced diameter section forms annular flow groove, annular flow groove communicates with main filter bores, annular flow groove communicates with nozzle bore.
The rear portion of described nozzle bore is conical section, middle part is changeover portion, front portion is jet segment, the rear end diameter of conical section is greater than point diameter, changeover portion is cylindrical hole, the point diameter of jet segment is greater than rear end diameter, the rear end of jet segment communicates with one end of changeover portion, and the rear end of changeover portion communicates with the front end of conical section.
The described main front portion crossing filter ruffle is tapered portion, and tapered portion sleeve also and between the sidewall of conical section forms injection channel in conical section, and the front end of tapered portion is sphere end.
The top outer wall of described top adapter sleeve has the extension edge of outward radial extension, and extension edge is pressed against on the lateral wall of nozzle body, is clamped with high-temperature seal ring between extension edge and the lateral wall of nozzle body.
Described vertical screw is in the front end of the through hole that is spirally connected; The top end face of the large diameter hole section of the vertical through hole of described stairstepping is taper wall.
Outstanding effect of the present invention is:
Compared with prior art, together with its nozzle body is shaping with nozzle head, proof strength, and also washer jet hole is convenient.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Detailed description of the invention:
Embodiment, see as shown in Figure 1 to Figure 2, a kind of injection machine filter-type nozzle with cleaning device, comprise nozzle body 10, have notch cuttype central through hole 20 in described nozzle body 10, the rear portion outer wall of nozzle body 10 has the limiting section 11 of outward radial extension, and the front center of nozzle body 10 has axially extended nozzle head 12 forward, the middle part of nozzle head 12 has axial nozzle bore 31, and nozzle bore 31 communicates with notch cuttype central through hole 20;
The front portion of described stepped central through hole 20 is reduced diameter section 21, the sidewall of reduced diameter section 21 forms the through hole 23 that is spirally connected, be spirally connected in through hole 23 and be bolted with bottom support end cap 24, middle part connects swivel nut 25 and top adapter sleeve 26, bottom support end cap 24 is near reduced diameter section 21, the lateral wall of nozzle body 10 is stretched out on the top of top adapter sleeve 26, middle part connects swivel nut 25 and is clamped between bottom support end cap 24 and top adapter sleeve 26, the middle middle part connecting swivel nut 25 has the vertical through hole 251 of stairstepping, the lower end of the vertical through hole 251 of stairstepping is large diameter hole section, the upper end of the vertical through hole 251 of stairstepping is small diameter bore section, spring 252 and ball 253 sleeve are in the lower end of the vertical through hole 251 of stairstepping, bottom support end cap 24 is put forth effort in the lower end of spring 252, ball 253 is put forth effort in the upper end of spring 252, on the top end face that ball 253 is pressed against the large diameter hole section of the vertical through hole of the stairstepping 251 and bottom of the small diameter bore section of the trapezoidal vertical through hole 251 of order of covering, the madial wall of the large diameter hole section of the vertical through hole 251 of described stairstepping has lateral through aperture 254, the front outsides wall of nozzle body 10 has vertical screw 13, nozzle body 10 wall between vertical screw 13 and lateral through aperture 254 has lateral connection hole 14, the one end in lateral connection hole 14 communicates with the middle part of vertical screw 13, another end in lateral connection hole 14 communicates with lateral through aperture 254, the madial wall of the reduced diameter section 21 of stepped central through hole 20 has oblique hole 27, the rear end in oblique hole 27 communicates with the bottom of vertical screw 13, the front end in oblique hole 27 is near reduced diameter section 21, the rear end in oblique hole 27 is away from reduced diameter section 21.
Further, be bolted with screw rod 15 in described vertical screw 13, the head of screw rod 15 is pressed against on the lateral wall of nozzle body 10, and the bottom of screw rod 15 is lower than lateral connection hole 14.
Further, the rear portion of described stepped central through hole 20 is enlarged diameter section 22, the madial wall of enlarged diameter section 22 has internal thread, the main rear portion crossing filter ruffle 40 has major diameter adapter sleeve 41, major diameter adapter sleeve 41 is screwed onto in enlarged diameter section 22, the front end face of major diameter adapter sleeve 41 is pressed against the front end face of enlarged diameter section 22, main filter ruffle 40 sleeve of crossing is in reduced diameter section 21, the main anterior sidewall crossing filter ruffle 40 has main filter bores 42, the main middle part crossing filter ruffle 40 has center opening 43, center opening 43 communicates with main filter bores 42, center opening 43 communicates with major diameter adapter sleeve 41, main mistake between the front outsides wall of filter ruffle 40 and reduced diameter section 21 forms annular flow groove 1, annular flow groove 1 communicates with main filter bores 42, annular flow groove 1 communicates with nozzle bore 31.
Further, the rear portion of described nozzle bore 31 is conical section 311, middle part is changeover portion 312, front portion is jet segment 313, the rear end diameter of conical section 311 is greater than point diameter, changeover portion 312 is cylindrical hole, the point diameter of jet segment 313 is greater than rear end diameter, the rear end of jet segment 313 communicates with one end of changeover portion 312, and the rear end of changeover portion 312 communicates with the front end of conical section 311.
Further, the described main front portion crossing filter ruffle 40 is tapered portion, and tapered portion sleeve also and between the sidewall of conical section 311 forms injection channel 2 in conical section 311, and the front end of tapered portion is sphere end.
Further, the top outer wall of described top adapter sleeve 26 has the extension edge 261 of outward radial extension, and extension edge 261 is pressed against on the lateral wall of nozzle body 10, is clamped with high-temperature seal ring 262 between the lateral wall of extension edge 261 and nozzle body 10.
Further, described vertical screw 13 is in the front end of the through hole 23 that is spirally connected; The top end face of the large diameter hole section of the vertical through hole 251 of described stairstepping is taper wall.
Operation principle: by being sprayed by nozzle bore 31 again after the filtration of the main main filter bores 42 of filter ruffle 40 excessively, its main filter ruffle 40 convenient disassembly excessively.
And when needing to clean, by screw rod 15 is rotated up a segment distance of back-outing, vertical screw 13 is communicated with lateral connection hole 14, then cleaning head is connected in top adapter sleeve 26, simultaneously, be spirally connected plug in enlarged diameter section 22, then highly pressurised liquid or gas are passed in middle connection swivel nut 25, make ball 253 press against spring 252 to press down, thus make highly pressurised liquid or gas namely can enter to enter reduced diameter section 21 in vertical screw 13 and from oblique hole 27 by lateral connection hole 14 and blow, and nozzle body 10 itself has uniform temperature, ensure that inner unborn glue does not condense, connection glue outwards can be sprayed from nozzle bore 31 by highly pressurised liquid or being blown into of gas like this, its ejection cleaning performance is good, convenient cleaning.
Wherein, the rear portion of nozzle bore 31 is conical section 311, middle part is changeover portion 312, front portion is jet segment 313, the rear end diameter of conical section 311 is greater than point diameter, changeover portion 312 is cylindrical hole, the point diameter of jet segment 313 is greater than rear end diameter, the rear end of jet segment 313 communicates with one end of changeover portion 312, and the rear end of changeover portion 312 communicates with the front end of conical section 311, makes jeting effect better.
Finally; above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification, therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (7)
1. one kind has the injection machine filter-type nozzle of cleaning device, comprise nozzle body (10), it is characterized in that: there is in described nozzle body (10) notch cuttype central through hole (20), the rear portion outer wall of nozzle body (10) has the limiting section (11) of outward radial extension, the front center of nozzle body (10) has axially extended nozzle head (12) forward, the middle part of nozzle head (12) has axial nozzle bore (31), and nozzle bore (31) communicates with notch cuttype central through hole (20);
The front portion of described stepped central through hole (20) is reduced diameter section (21), the sidewall of reduced diameter section (21) forms the through hole that is spirally connected (23), be spirally connected in through hole (23) and be bolted with bottom support end cap (24), middle part connects swivel nut (25) and top adapter sleeve (26), bottom support end cap (24) is near reduced diameter section (21), the lateral wall of nozzle body (10) is stretched out on the top of top adapter sleeve (26), middle part connects swivel nut (25) and is clamped between bottom support end cap (24) and top adapter sleeve (26), the middle middle part connecting swivel nut (25) has the vertical through hole of stairstepping (251), the lower end of the vertical through hole of stairstepping (251) is large diameter hole section, the upper end of the vertical through hole of stairstepping (251) is small diameter bore section, spring (252) and ball (253) sleeve are in the lower end of the vertical through hole of stairstepping (251), bottom support end cap (24) is put forth effort in the lower end of spring (252), ball (253) is put forth effort in the upper end of spring (252), on the top end face that ball (253) is pressed against the large diameter hole section of the vertical through hole of stairstepping (251) and the bottom of the small diameter bore section of the trapezoidal vertical through hole (251) of order of covering, the madial wall of the large diameter hole section of the vertical through hole of described stairstepping (251) has lateral through aperture (254), the front outsides wall of nozzle body (10) has vertical screw (13), nozzle body (10) wall between vertical screw (13) and lateral through aperture (254) has lateral connection hole (14), the one end in lateral connection hole (14) communicates with the middle part of vertical screw (13), another end in lateral connection hole (14) communicates with lateral through aperture (254), the madial wall of the reduced diameter section (21) of stepped central through hole (20) has oblique hole (27), the rear end in oblique hole (27) communicates with the bottom of vertical screw (13), the front end in oblique hole (27) is near reduced diameter section (21), the rear end in oblique hole (27) is away from reduced diameter section (21).
2. a kind of injection machine filter-type nozzle with cleaning device according to claim 1, it is characterized in that: in described vertical screw (13), be bolted with screw rod (15), the head of screw rod (15) is pressed against on the lateral wall of nozzle body (10), and the bottom of screw rod (15) is lower than lateral connection hole (14).
3. a kind of injection machine filter-type nozzle with cleaning device according to claim 1, it is characterized in that: the rear portion of described stepped central through hole (20) is enlarged diameter section (22), the madial wall of enlarged diameter section (22) has internal thread, the main rear portion crossing filter ruffle (40) has major diameter adapter sleeve (41), major diameter adapter sleeve (41) is screwed onto in enlarged diameter section (22), the front end face of major diameter adapter sleeve (41) is pressed against the front end face of enlarged diameter section (22), main filter ruffle (40) sleeve of crossing is in reduced diameter section (21), the main anterior sidewall crossing filter ruffle (40) has main filter bores (42), the main middle part crossing filter ruffle (40) has center opening (43), center opening (43) communicates with main filter bores (42), center opening (43) communicates with major diameter adapter sleeve (41), main mistake between the front outsides wall of filter ruffle (40) and reduced diameter section (21) forms annular flow groove (1), annular flow groove (1) communicates with main filter bores (42), annular flow groove (1) communicates with nozzle bore (31).
4. a kind of injection machine filter-type nozzle with cleaning device according to claim 1, it is characterized in that: the rear portion of described nozzle bore (31) is conical section (311), middle part is changeover portion (312), front portion is jet segment (313), the rear end diameter of conical section (311) is greater than point diameter, changeover portion (312) is cylindrical hole, the point diameter of jet segment (313) is greater than rear end diameter, the rear end of jet segment (313) communicates with one end of changeover portion (312), the rear end of changeover portion (312) communicates with the front end of conical section (311).
5. a kind of injection machine filter-type nozzle with cleaning device according to claim 3, it is characterized in that: the described main front portion crossing filter ruffle (40) is tapered portion, tapered portion sleeve in conical section (311) and and form injection channel (2) between the sidewall of conical section (311), the front end of tapered portion is sphere end.
6. a kind of injection machine filter-type nozzle with cleaning device according to claim 1, it is characterized in that: the top outer wall at described top adapter sleeve (26) has the extension edge (261) of outward radial extension, extension edge (261) is pressed against on the lateral wall of nozzle body (10), is clamped with high-temperature seal ring (262) between the lateral wall of extension edge (261) and nozzle body (10).
7. a kind of injection machine filter-type nozzle with cleaning device according to claim 1, is characterized in that: described vertical screw (13) is in the front end of the through hole that is spirally connected (23); The top end face of the large diameter hole section of the vertical through hole of described stairstepping (251) is taper wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940166.6A CN105415582B (en) | 2015-12-15 | 2015-12-15 | A kind of filter-type nozzle of the injection machine with cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940166.6A CN105415582B (en) | 2015-12-15 | 2015-12-15 | A kind of filter-type nozzle of the injection machine with cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105415582A true CN105415582A (en) | 2016-03-23 |
| CN105415582B CN105415582B (en) | 2017-09-12 |
Family
ID=55494336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510940166.6A Expired - Fee Related CN105415582B (en) | 2015-12-15 | 2015-12-15 | A kind of filter-type nozzle of the injection machine with cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105415582B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584744A (en) * | 2017-09-07 | 2018-01-16 | 宁波金亿精密机械有限公司 | A kind of screw barrel with cleaning function |
| CN112246456A (en) * | 2020-09-25 | 2021-01-22 | 杨绕生 | Long liquid spraying connector capable of changing liquid spraying mode |
| CN116714184A (en) * | 2023-05-16 | 2023-09-08 | 宁波甬华塑料机械制造有限公司 | Forced plasticizing nozzle |
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| CN201483716U (en) * | 2009-09-23 | 2010-05-26 | 睿鸿光电科技(福建)有限公司 | Plastic injection molding machine nozzle with filter screen |
| US20120111426A1 (en) * | 2010-11-10 | 2012-05-10 | Panos Trakas | Dual stage screen pack with decompression feature |
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| CN104029338A (en) * | 2014-06-10 | 2014-09-10 | 浙江荣新工贸有限公司 | Filter device of split type injection molding mold head |
| CN104589585A (en) * | 2014-12-31 | 2015-05-06 | 苏州市博奥塑胶电子有限公司 | Nozzle of injection molding machine |
| CN204844677U (en) * | 2015-07-25 | 2015-12-09 | 陈建鹏 | Novel injection mold nozzle |
| CN205185209U (en) * | 2015-12-15 | 2016-04-27 | 荣昌精密机械(苏州)有限公司 | Filter type nozzle for injection molding machine with belt cleaning device |
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2015
- 2015-12-15 CN CN201510940166.6A patent/CN105415582B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991006413A1 (en) * | 1989-10-26 | 1991-05-16 | Ewikon Entwicklung Und Konstruktion Gmbh & Co. Kg | Electrically heated nozzle for injection moulding machines, hot runner moulds or the like |
| US5587076A (en) * | 1994-05-25 | 1996-12-24 | Herzog Ag | Filter nozzle for injection molding machines processing thermoplastics |
| CN201483754U (en) * | 2009-05-22 | 2010-05-26 | 吴聪乐 | Novel pneumatic nozzle opening/closing device of air blow disc machine |
| CN201483716U (en) * | 2009-09-23 | 2010-05-26 | 睿鸿光电科技(福建)有限公司 | Plastic injection molding machine nozzle with filter screen |
| US20120111426A1 (en) * | 2010-11-10 | 2012-05-10 | Panos Trakas | Dual stage screen pack with decompression feature |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584744A (en) * | 2017-09-07 | 2018-01-16 | 宁波金亿精密机械有限公司 | A kind of screw barrel with cleaning function |
| CN107584744B (en) * | 2017-09-07 | 2019-10-22 | 宁波金亿精密机械有限公司 | A kind of screw barrel with cleaning function |
| CN112246456A (en) * | 2020-09-25 | 2021-01-22 | 杨绕生 | Long liquid spraying connector capable of changing liquid spraying mode |
| CN116714184A (en) * | 2023-05-16 | 2023-09-08 | 宁波甬华塑料机械制造有限公司 | Forced plasticizing nozzle |
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| Publication number | Publication date |
|---|---|
| CN105415582B (en) | 2017-09-12 |
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Granted publication date: 20170912 |