CN208324154U - A kind of melt extrusion screw rod pressurized construction - Google Patents
A kind of melt extrusion screw rod pressurized construction Download PDFInfo
- Publication number
- CN208324154U CN208324154U CN201820465892.6U CN201820465892U CN208324154U CN 208324154 U CN208324154 U CN 208324154U CN 201820465892 U CN201820465892 U CN 201820465892U CN 208324154 U CN208324154 U CN 208324154U
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- hole
- swivel nut
- inserted link
- limit plate
- screw rod
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Abstract
The utility model discloses a kind of melt extrusion screw rod pressurized constructions, belong to extruder screw field, it is intended to provide a kind of melt extrusion screw rod pressurized construction, it the advantage is that, pressure when increasing screw rod transmission melt, its key points of the technical solution are that: including the body of rod and several swivel nuts being set in outside the body of rod, the swivel nut is externally provided with external screw thread, the externally threaded screw pitch of each swivel nut composition is gradually reduced along material transferring direction, through-hole is relatively set in each swivel nut, inserted link is equipped in each through-hole, the body of rod is equipped with pyramid blocks in one end that material removes, annular stop ring is connected in the threaded one end that material enters, the stop collar and block are located at the two sides of swivel nut and contradict respectively with the both ends of inserted link.
Description
Technical field
The utility model relates to extruder screw field, in particular to a kind of melt extrusion screw rod pressurized construction.
Background technique
Screw extruder is mainly used for squeezing out the thermoplastics such as soft, hard polyvinyl chloride, polyethylene, and a variety of plastics can be processed
Product, such as blown film, crowded pipe, pressing plate, hot candied band, also can be used for melt pelletization.
Notification number is that the Chinese patent of CN201483737U discloses a kind of structure improved single-screw extruder, is wrapped
Including rack, motor, expects pipe, hopper, heating sheet and the screw rod being set in expects pipe, the expects pipe are arranged on the rack, the material
The feeding inlet communicated with inside the expects pipe is offered on pipe, the hopper discharging end is connected to feeding inlet, the heating sheet packet
The outer wall of the expects pipe is overlayed on, the output shaft of motor is connect by transmission chain with screw rod；It further include an evacuator, the expects pipe
The stomata communicated with inside the expects pipe is offered, the stomata is connected to by pipeline with the air entry of the evacuator.
But due to the screw pitch on hopper inner screw be it is certain, in hopper melt, hopper is to melt
Transmission pressure be it is certain, be unfavorable for the transmission of melt.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of melt extrusion screw rod boosted junctions
Structure the advantage is that, increase pressure when screw rod transmits melt.
To achieve the above object, the utility model provides following technical solution: a kind of melt extrusion screw rod pressurized construction,
Including the body of rod and several swivel nuts being set in outside the body of rod, the swivel nut is externally provided with external screw thread, and each swivel nut forms outer
The screw pitch of screw thread is gradually reduced along material transferring direction, and through-hole, each through-hole are relatively set in each swivel nut
It is inside equipped with inserted link, the body of rod is equipped with pyramid blocks in one end that material removes, and is connected in the threaded one end that material enters
Annular stop ring, the stop collar and block are located at the two sides of swivel nut and contradict respectively with the both ends of inserted link.
By using above-mentioned technical proposal, each swivel nut is threaded through outside the body of rod, the external screw thread screw pitch outside swivel nut gradually subtracts
Small, so that the extruding force into the melt in external screw thread by externally threaded transmission is gradually increased, and biggish extruding force increases
Self cleavage power between melt, enables melt quickly to squeeze out, pyramid blocks and stop collar limit swivel nut on the body of rod
Movement, inserted link will drive each swivel nut to rotate together, and the both ends of inserted link are contradicted with stop collar and swivel nut respectively, limit inserted link
Movement so that the transmission melt that each swivel nut is stable.
The utility model is further arranged to: the swivel nut is equipped with the locating part that limitation inserted link removes through-hole in through-hole.
By using above-mentioned technical proposal, locating part stabilizes inserted link in the movement of swivel nut inner via hole, reduces inserted link and exists
Relative movement in swivel nut, and the collision of inserted link and through hole wall is reduced, protect swivel nut.
The utility model is further arranged to: the locating part includes the bull stick being hingedly arranged in through hole wall, described
Inserted link outer wall is equipped with the jack being inserted into for bull stick, and the bull stick is extruded in jack by compressed spring, the compressed spring
One end connect with bull stick, the other end is connect with through-hole wall, when bull stick insertion jack in when, the bull stick is moved along inserted link
Direction inclination, the inserted link stretch out swivel nut in the one end contradicted with stop collar and are connected with latch segment in the threaded one end of stretching,
The first putting hole of the annular for latch segment and inserted link entrance is offered on the stop collar.
It squeezes bull stick when in inserted link insertion through-hole by using above-mentioned technical proposal and compressed spring is compressed and makes it
With elastic force, when bull stick is inserted into jack, the elastic force of compressed spring is fixed on bull stick in jack, since bull stick is along slotting
The moving direction of bar tilts, therefore inserted link can only be moved into through-hole, will will receive when inserted link is to far from the movement of through-hole direction
The limitation of bull stick, turn latch segment contradicts latch segment and swivel nut end face at this time, and then limits movement of the inserted link into through-hole,
The movement of inserted link is limited at this time, and latch segment limits the rotation of inserted link, so that the fixing-stable of swivel nut, first is placed
Hole opens up so that latch segment and inserted link enter stop collar, caused by reducing when latch segment and inserted link contradict stop collar and swivel nut
It influences.
The utility model is further arranged to: the bull stick is equipped with arcwall face far from one end of compressed spring.
By using above-mentioned technical proposal, bull stick is easy to from one when the setting of arcwall face is moved in through-hole convenient for inserted link
It is moved in jack in next jack, reduces operator and inserted link is inserted into power spent in through-hole.
The utility model is further arranged to: the locating part includes several first limit plates being arranged in through hole wall
And several second limit plates on inserted link outer wall are set, and first limit plate is circumferentially arranged along through hole wall, and described the
Two limit plates are circumferentially arranged along inserted link outer wall, and the gap between adjacent first limit plate is greater than the size of the second limit plate,
After inserted link enters in through-hole, first limit plate and the second limit plate are located in same section, on first limit plate
The limiting slot for the insertion of the second limit plate is offered, the inserted link is equipped with fixed plate, the fixed plate in the one end for stretching out through-hole
On be equipped with several fixed links into swivel nut, offered on the stop collar for fixed link insertion annular second place
Hole.
By using above-mentioned technical proposal, when inserted link enters in through-hole, the second limit plate is limited from adjacent two first
It is passed through between plate, rotates inserted link later and the second limit plate is entered in limiting slot, in the fixed plate of fixed link insertion at this time, limitation
The rotation of inserted link, limiting slot limits the second limit plate moving along through-hole at this time, and then limit inserted link in through-hole
It is mobile so that swivel nut rotates together transmission melt, the opening up of the second putting hole reduce stop collar and when swivel nut contradicts caused by
It influences.
The utility model is further arranged to: the fixed plate is equipped with the branch into swivel nut of annular towards the side of swivel nut
Fagging, the support plate are equipped with rubber pad towards one end of swivel nut.
By using above-mentioned technical proposal, after support plate enters swivel nut, inserted link is supported, stabilizes the position of inserted link
Set, the setting of rubber pad reduce support plate enter after swivel nut with the shock of swivel nut and hit the noise generated, protect spiral shell
Set.
The utility model is further arranged to: the gap between two neighboring first limit plate of the second limit plate face
When, the hole wall of the through-hole is equipped with the first dial plate, and the inserted link is equipped with the second marking line corresponding with the first dial plate.
By using above-mentioned technical proposal, the setting of the first dial plate and the second marking line is so that operator inserts by inserted link
When entering in through-hole, accurately the second limit plate can be moved along the gap between two the first limit plates, so that inserted link
It is mobile accurate.
The utility model is further arranged to: the swivel nut is equipped with the locating piece being inserted into another adjacent swivel nut.
By using above-mentioned technical proposal, the setting of locating piece reduces the mutual rotation between two neighboring swivel nut, into
One step rotates together each swivel nut.
Compared with prior art, the utility model has the following beneficial effects: outer spiral shell on each swivel nut outside the body of rod
Line screw pitch gradually becomes smaller, so that external screw thread is gradually increased the extruding force of melt when transmitting melt, conducive to the transmission of melt；It inserts
The setting of bar and through-hole is convenient for driving each swivel nut to rotate together, conducive to the transmission of melt.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is embodiment 1 for embodying the structural schematic diagram of the body of rod and swivel nut；
Fig. 3 is the enlarged structure schematic diagram in the portion A in Fig. 2；
Fig. 4 is the enlarged structure schematic diagram in the portion B in Fig. 2；
Fig. 5 is the enlarged structure schematic diagram in the portion C in Fig. 2；
Fig. 6 is the structural schematic diagram of embodiment 2；
Fig. 7 is the enlarged structure schematic diagram in the portion D in Fig. 6；
Fig. 8 is embodiment 2 for embodying the structural schematic diagram of inserted link；
Fig. 9 is the enlarged structure schematic diagram in the portion E in Fig. 8.
In figure, 1, the body of rod；11, swivel nut；111, through-hole；112, inserted link；113, pyramid blocks；114, stop collar；115,
One dial plate；116, the second marking line；117, locating piece；12, external screw thread；2, locating part；21, bull stick；211, arcwall face；22,
Jack；23, compressed spring；24, latch segment；25, the first putting hole；26, the first limit plate；27, the second limit plate；28, it limits
Slot；29, fixed plate；291, fixed link；292, the second putting hole；293, support plate；294, rubber pad.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment 1:
A kind of melt extrusion screw rod pressurized construction, such as Fig. 1, including the body of rod 1 and several swivel nuts being set in outside the body of rod 1
11, swivel nut 11 can also be connected by key outside the body of rod 1, be externally provided with external screw thread 12, the external screw thread of each swivel nut 11 in swivel nut 11
12 form continuous and connection deflector chute, and the screw pitch of the external screw thread 12 of the composition of each swivel nut 11 gradually subtracts along material transferring direction
It is small so that the melt being located in external screw thread 12 pressure for being subject in transmission is gradually increased, and biggish extruding force increase it is molten
Self cleavage power between body, enables melt quickly to squeeze out, and the body of rod 1 is equipped with pyramid blocks 113 in one end that material removes,
It is connected with annular stop ring 114 in the threaded one end that material enters, pyramid blocks 113 and stop collar 114 limit swivel nut at this time
11 movement on the body of rod 1.And being individually replaced convenient for swivel nut 11, and the smaller external screw thread 12 of screw pitch is replaced as needed
Swivel nut 11.
Such as Fig. 2 and Fig. 4, it is relatively set with through-hole 111 in each swivel nut 11, is equipped with inserted link in each through-hole 111
112, stop collar 114 and block are located at the two sides of swivel nut 11 and contradict respectively with the both ends of inserted link 112, and inserted link 112 is logical at this time
It drives each swivel nut 11 to rotate together in hole 111, transmits melt, stop collar 114 and block convenient for the external screw thread 12 on swivel nut 11
Block movement of the inserted link 112 in through-hole 111.
Such as Fig. 4, swivel nut 11 is equipped with the locating part 2 that limitation inserted link 112 removes through-hole 111 in through-hole 111, locating part 2
The position that inserted link 112 is further stabilized in through-hole 111 is set, reduces movement of the inserted link 112 in through-hole 111, and reduce
The collision of inserted link 112 and 111 hole wall of through-hole, protects swivel nut 11.Such as Fig. 3, it is adjacent another that insertion is in addition equipped on swivel nut 11
Locating piece 117 in one swivel nut 11, locating piece 117 reduce the mutual rotation between two neighboring swivel nut 11, further make
It obtains each swivel nut 11 to rotate together, and can make the locating piece 117 on each swivel nut 11 when projecting to same plane not same
One position.
Such as Fig. 4, locating part 2 includes the bull stick 21 being hingedly arranged on 111 hole wall of through-hole, and 112 outer wall of inserted link, which is equipped with, to be supplied
The jack 22 that bull stick 21 is inserted into, bull stick 21 are extruded in jack 22 by compressed spring 23, one end of compressed spring 23 and bull stick
21 connections, the other end are connect with 111 inner wall of through-hole, and when bull stick 21 is inserted into jack 22, bull stick 21 is along the side of movement of inserted link 112
To inclination, bull stick 21 limits inserted link 112 to the movement far from 111 direction of through-hole at this time, and inserted link 112 is supported with stop collar 114
One end of touching stretches out swivel nut 11 and is connected with latch segment 24 in the threaded one end of stretching, and the size of latch segment 24 is greater than through-hole 111
Aperture, when 24 turn of latch segment to swivel nut 11 contradict when, the frictional force generated between latch segment 24 and swivel nut 11 limits
The rotation of inserted link 112, and movement of the inserted link 112 into through-hole 111 is limited, so that the fixing-stable of swivel nut 11.
Such as Fig. 4, in addition bull stick 21 is equipped with arcwall face 211 far from one end of compressed spring 23, convenient for inserted link 112 in past through-hole
When moving in 111, arcwall face 211 removes jack 22 convenient for bull stick 21, so that bull stick 21 is easy to be moved to out of a jack 22
In next jack 22, reduces operator and inserted link 112 is inserted into power spent in through-hole 111.
Such as Fig. 5, the first putting hole of the annular for latch segment 24 and the entrance of inserted link 112 is furthermore offered on stop collar 114
25, the bottom hole of inserted link 112 and the first putting hole 25 contradicts at this time, further limits the position of inserted link 112, the first putting hole 25
Open up so that latch segment 24 and inserted link 112 enter stop collar 114, reduce latch segment 24 and inserted link 112 to stop collar 114 and spiral shell
It is influenced caused by when set 11 contradicts.
Specific operation process: when needing to increase the transmission pressure of melt, stop collar 114 being screwed off from the body of rod 1, replacement
Inserted link 112 is inserted into through-hole 111, inserted link by swivel nut 11 later so that 12 screw pitch of external screw thread on each swivel nut 11 is gradually reduced
112 squeeze bull stick 21 rotates to 23 direction of compressed spring, and compressed spring 23 is squeezed and makes it have elastic force, when bull stick 21 is met
When to the first jack 22, bull stick 21 turns to jack 22 under the action of the elastic force of compressed spring 23, as operator continues
The mobile inserted link 112 into through-hole 111, so that bull stick 21 is moved in next jack 22 out of first jack 22, until inserting
Bar 112 enters one end and pyramid blocks 113 in through-hole 111 and contradicts, and the other end extends swivel nut 11, and turn latch segment 24 to lock
Tight block 24 is contradicted with swivel nut 11, limits the rotation and movement of inserted link 112, and then stop collar 114 is revolved to 24 direction of latch segment
It is dynamic, until stop collar 114 and swivel nut 11 contradict, movement of the swivel nut 11 on the body of rod 1 is limited, inserted link 112 is put with first at this time
The bottom hole for setting hole 25 contradicts, and further limits movement of the inserted link 112 in through-hole 111.
Embodiment 2:
A kind of melt extrusion screw rod pressurized construction, difference from example 1 is that, such as Fig. 8 and Fig. 9, locating part 2 is wrapped
Several second limits for including several first limit plates 26 being arranged on 111 hole wall of through-hole and being arranged on 112 outer wall of inserted link
Plate 27, is all provided with that there are four the first limit plates 26 on 111 hole wall of through-hole in each swivel nut 11, and the first limit plate 26 is along through-hole 111
Hole wall is circumferentially arranged, and the second limit plate 27 is circumferentially arranged along 112 outer wall of inserted link, and the gap between adjacent first limit plate 26 is greater than
The size of second limit plate 27, after inserted link 112 enters in through-hole 111, the first limit plate 26 and the second limit plate 27 are located at together
In one section, the limiting slot 28 for the insertion of the second limit plate 27 is offered on the first limit plate 26, when the second limit plate 27 enters
When in limiting slot 28, inserted link 112 is limited along the movement of the axis direction of through-hole 111, only needs to limit turning for inserted link 112 at this time
It is dynamic to limit position of the inserted link 112 in through-hole 111.
Such as Fig. 6 and Fig. 7, therefore inserted link 112 is equipped with fixed plate 29 in the one end for stretching out through-hole 111, when inserted link 112 enter it is logical
When hole 111 and pyramid blocks 113 contradict, 11 end face of swivel nut of fixed plate 29 and close stop collar 114 is contradicted, and limits inserted link
112 further move into through-hole 111, and two or two or more consolidating into swivel nut 11 are equipped on this outer stationary plates 29
Fixed pole 291, fixed link 291 limit the rotation of fixed plate 29, and then limit the rotation of inserted link 112, so that on inserted link 112
Second limit plate 27 is stably fixed in limiting slot 28.In addition the annular being embedded in for fixed link 291 is offered on stop collar 114
The second putting hole 292 fixed link 291 and inserted link 112 are extended to second together when stop collar 114 and swivel nut 11 contradict
The bottom hole of putting hole 292 limits the movement of movement and inserted link 112 of the fixed link 291 in fixed plate 29 at this time.
Such as Fig. 7, fixed plate 29 is equipped with the support plate 293 into swivel nut 11 of annular, support plate towards the side of swivel nut 11
After 293 enter swivel nut 11, inserted link 112 is supported, the position of inserted link 112 is stabilized, ensure that inserted link 112 and through-hole
111 concentricity, support plate 293 are equipped with rubber pad 294 towards one end of swivel nut 11, reduce support plate 293 and enter swivel nut 11
The noise generated afterwards with the shock of swivel nut 11 and shock, protects swivel nut 11.
Such as Fig. 9, when the gap between two neighboring first limit plate 26 of 27 face of the second limit plate, the hole of through-hole 111
It is set on wall there are four the first dial plate 115, the gap between two neighboring first limit plate 26 of first identifier plate face, and is located at
Near 11 end face of swivel nut of stop collar 114, the height of first identifier plate less than the first limit plate 26 height, on inserted link 112
Equipped with second marking line 116 corresponding with the first dial plate 115, when so that operator is in by the insertion through-hole 111 of inserted link 112,
Accurately the second limit plate 27 can be moved along the gap between two the first limit plates 26, so that the movement of inserted link 112
Accurately.
Specific operation process: when by the second marking line 116 on inserted link 112 along in first identifier plate push-in through-hole 111,
First limit plate 26 of the second limit plate 27 and through-hole 111 on inserted link 112 is located in same section, and rotation inserted link 112 makes
Second limit plate 27 enters limiting slot 28, and fixed link 291 is inserted into fixed plate 29 at this time, limits the rotation of inserted link 112, into
And position of the inserted link 112 in through-hole 111 is fixed, the stop collar 114 on the body of rod 1 is rotated, so that stop collar 114 and spiral shell
Set 11 contradicts and limits the movement of swivel nut 11 on the body of rod 1.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of melt extrusion screw rod pressurized construction, it is characterized in that: including the body of rod (1) and being set in the body of rod (1) outside several
Swivel nut (11), the swivel nut (11) are externally provided with external screw thread (12), the screw pitch of the external screw thread (12) of each swivel nut (11) composition
It is gradually reduced, is relatively set with through-hole (111) in each swivel nut (11), each through-hole along material transferring direction
(111) be equipped with inserted link (112) in, the body of rod (1) in one end that material removes equipped with pyramid blocks (113), material into
The threaded one end entered is connected with annular stop ring (114), and the stop collar (114) and block are located at the two sides of swivel nut (11) and divide
It is not contradicted with the both ends of inserted link (112).
2. a kind of melt extrusion screw rod pressurized construction according to claim 1, it is characterized in that: the swivel nut (11) is in through-hole
(111) locating part (2) that limitation inserted link (112) removes through-hole (111) is equipped in.
3. a kind of melt extrusion screw rod pressurized construction according to claim 2, it is characterized in that: the locating part (2) includes
The hinged bull stick (21) being arranged on through-hole (111) hole wall, inserted link (112) outer wall is equipped with to be inserted for what bull stick (21) were inserted into
Hole (22), the bull stick (21) are extruded in jack (22) by compressed spring (23), one end of the compressed spring (23) with
Bull stick (21) connection, the other end are connect with through-hole (111) inner wall, when bull stick (21) insertion jack (22) is interior, the bull stick
(21) it is tilted along the moving direction of inserted link (112), the inserted link (112) stretches out swivel nut in the one end contradicted with stop collar (114)
(11) and in the threaded one end of stretching be connected with latch segment (24), offer on the stop collar (114) for latch segment (24) and
The first putting hole (25) for the annular that inserted link (112) enters.
4. a kind of melt extrusion screw rod pressurized construction according to claim 3, it is characterized in that: the bull stick (21) is far from pressure
One end of contracting spring (23) is equipped with arcwall face (211).
5. a kind of melt extrusion screw rod pressurized construction according to claim 2, it is characterized in that: the locating part (2) includes
Several first limit plates (26) being arranged on through-hole (111) hole wall and be arranged on inserted link (112) outer wall several second
Limit plate (27), first limit plate (26) are circumferentially arranged along through-hole (111) hole wall, and second limit plate (27) is along inserted link
(112) outer wall is circumferentially arranged, and the gap between adjacent first limit plate (26) is greater than the size of the second limit plate (27), when
After inserted link (112) enters in through-hole (111), first limit plate (26) and the second limit plate (27) are located in same section,
The limiting slot (28) for the second limit plate (27) insertion is offered on first limit plate (26), the inserted link (112) is being stretched
One end of through-hole (111) is equipped with fixed plate (29) out, and several fixations for entering swivel nut (11) are equipped on the fixed plate (29)
Bar (291) offers the second putting hole (292) of the annular for fixed link (291) insertion on the stop collar (114).
6. a kind of melt extrusion screw rod pressurized construction according to claim 5, it is characterized in that: the fixed plate (29) direction
The side of swivel nut (11) is equipped with the support plate (293) for entering swivel nut (11) of annular, and the support plate (293) is towards swivel nut (11)
One end be equipped with rubber pad (294).
7. a kind of melt extrusion screw rod pressurized construction according to claim 5, it is characterized in that: working as the second limit plate (27) just
When to gap between two neighboring first limit plate (26), the hole wall of the through-hole (111) is equipped with the first dial plate
(115), the inserted link (112) is equipped with the second marking line (116) corresponding with the first dial plate (115).
8. a kind of melt extrusion screw rod pressurized construction according to claim 1, it is characterized in that: the swivel nut (11) is equipped with
The locating piece (117) being inserted into another adjacent swivel nut (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820465892.6U CN208324154U (en) | 2018-03-31 | 2018-03-31 | A kind of melt extrusion screw rod pressurized construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820465892.6U CN208324154U (en) | 2018-03-31 | 2018-03-31 | A kind of melt extrusion screw rod pressurized construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208324154U true CN208324154U (en) | 2019-01-04 |
Family
ID=64780361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820465892.6U Active CN208324154U (en) | 2018-03-31 | 2018-03-31 | A kind of melt extrusion screw rod pressurized construction |
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| Country | Link |
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| CN (1) | CN208324154U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394966A (en) * | 2019-07-18 | 2019-11-01 | 南京橡塑机械厂有限公司 | A kind of devolatilization screw rod and devolatilization extruder |
| CN113650186A (en) * | 2021-08-18 | 2021-11-16 | 深圳市三工色彩科技有限公司 | Granulating device and method of color master batches |
| CN114248408A (en) * | 2020-09-24 | 2022-03-29 | 苏州苏模仪器有限公司 | Spiral extrusion structure for injection mold |
-
2018
- 2018-03-31 CN CN201820465892.6U patent/CN208324154U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394966A (en) * | 2019-07-18 | 2019-11-01 | 南京橡塑机械厂有限公司 | A kind of devolatilization screw rod and devolatilization extruder |
| CN114248408A (en) * | 2020-09-24 | 2022-03-29 | 苏州苏模仪器有限公司 | Spiral extrusion structure for injection mold |
| CN113650186A (en) * | 2021-08-18 | 2021-11-16 | 深圳市三工色彩科技有限公司 | Granulating device and method of color master batches |
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