CN203901687U - Extruder unit - Google Patents

Extruder unit Download PDF

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Publication number
CN203901687U
CN203901687U CN201420323186.XU CN201420323186U CN203901687U CN 203901687 U CN203901687 U CN 203901687U CN 201420323186 U CN201420323186 U CN 201420323186U CN 203901687 U CN203901687 U CN 203901687U
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Prior art keywords
extruder
unit
extruding
pipeline
stuffing
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CN201420323186.XU
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Chinese (zh)
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徐雄伟
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Sincere New Material Co Ltd Of Balcony
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Abstract

The utility model relates to an extruder unit which comprises a first extruder, wherein a heating region, a melting region, a mixing region, a net exchanger and a static mixer are sequentially arranged in the first extruder, an outlet of the static mixer is communicated with an inlet of a melt pump through a pipeline, and an outlet of the melt pump is communicated with a feeding hole of a second extruder through a pipeline. The extruder unit has the advantages that the first extruder is connected with the second extruder by arranging the melt pump, thus the extruding force of mixing during transition from the first extruder to the second extruder is effectively reduced, the working efficiency is correspondingly increased; and a leakage-preventing sealing device is arranged in front of the feeding hole of the second extruder, the sealing property of the feeding hole of the second extruder is enhanced, leaking air can be prevented from flowing out from a rotatable gap when a lead screw rotates and extrudes, thus the quality of products is ensured, and pressure relief of the lead screw can not be caused so that a power device is capable of saving a certain power source.

Description

Extrude unit
Technical field
The utility model relates to the technical field of extruder, especially relates to a kind of unit of extruding.
Background technology
At present in traditional extruder, what fundamental sum was the most general is single screw extrusion machine, and it mainly comprises: five parts such as transmission, feeding device, barrel, screw rod, head and mouthful mould.Running part is conventionally by motor, and the compositions such as reduction box and bearing, carry out drive screw work, and in the process of extruding, screw speed must be stablized, and can not change along with the variation of screw rod load, could keep like this quality uniformity of resulting product; The general most employing pellet of feed, but also can adopt strip material or powder, charging apparatus all uses taper loading hopper conventionally, and its volume requires at least can provide the consumption of hour; Screw rod is the heart of extruder, is the critical component of extruder, and the performance quality of screw rod, has determined productivity ratio, the plasticizing quality of an extruder, the dispersiveness of dosing thing, melt temperature, power consumption etc.; Poor half of barrel internal diameter and screw diameter claims gap delta, and it can affect the production capacity of extruder, and with the increase of δ, productivity ratio reduces; Head and a mouthful mould are generally an integral body, are referred to as traditionally head, the parts such as the building block of head and mouthful mould comprises that net-changing device, porous are pulled, current divider (it is combined into parts with core rod sometimes), core rod, mouth mould and machine neck.
Traditional unit of extruding, conventionally the direct static mixer by the first extruder is directly connected with the charging aperture of the second extruder, although can effectively mixing, this connected mode extrudes effect, but the needed pressure of extruding of itself is larger, need more kinetic energy to supplement consumed energy, and also relatively low in the efficiency of work, the quality of product is also relatively poor simultaneously.
Summary of the invention
The deficiency existing for above-mentioned prior art, the purpose of this utility model is to be to provide a kind of extrusion pressure required relatively little, operating efficiency quality high and product also improves accordingly extrudes unit.
For realizing above-mentioned object, the utility model provides following technical scheme: a kind of unit of extruding, comprise the first extruder, in the first extruder, be provided with successively the thermal treatment zone, fusion zone, mixing district, net-changing device, static mixer, the outlet of described static mixer is communicated with the import of Melt Pump by pipeline, and melt delivery side of pump is communicated with the charge door of the second extruder by pipeline.
The utility model is further set to: in described the second extruder, be provided with successively the thermal treatment zone, fusion zone, mixing district and extruder head, the charge door of the thermal treatment zone is connected with Melt Pump by pipeline.
The utility model is further set to: before the charge door of described the second extruder, be provided with and prevent back leakage sealing device, describedly prevent back that leakage sealing device comprises gland, stuffing-box and machine barrel, one end of stuffing-box is set on gland, the other end is fixedly connected with machine barrel, described gland, stuffing-box and machine barrel are all sheathed on screw rod, the front side of the inner surface of described stuffing-box is provided with annular boss, in cavity between the front end face of the face of cylinder of screw rod and the trailing flank of annular boss and gland, be provided with polytetrafluoroethylene (PTFE) pad and airtight and watertight padding, airtight and watertight padding is arranged on the side by stuffing-box.
The utility model is further set to: on the pipeline that the fusion zone of described the first extruder, static mixer and Melt Pump are connected with the second extruder, be respectively equipped with pressure detector.
The utility model is further set to: the mixing district of described the second extruder is provided with pressure detector, and extruder head is provided with pressure detector and melt temperature detector.
The utility model is further set to: described melt pump delivery is 20cc, and rotating speed is 0-60rpm.
The utility model is further set to: described the first extruder is single screw extrusion machine or double screw extruder, and the second described extruder is single screw extrusion machine.
The utility model is further set to: the main motor current of described the first extruder is 18.5kw; The main motor current of described the second extruder is 37.5kw.
The utility model is further set to: the screw diameter of described the first extruder is less than or equal to the screw diameter of the second extruder.
By adopting technique scheme, the technique effect that the utility model reaches is: between the first extruder and the second extruder by setting up Melt Pump to be connected, effectively reduce the power of extruding of mixing while being transitioned into the second extruder by the first extruder, and the efficiency of work also increases accordingly; Before the charge door of the second extruder, arrange and prevent back leakage sealing device, the sealing property at the charging aperture place of the second extruder is strengthened, can prevent that screw rod from flowing out back the air leaking in rotary extrusion from the space of rotation simultaneously, so just guaranteed the quality of product, can not cause pressure release to screw rod equally, power set can be saved must power source.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is operation principle schematic diagram of the present utility model.
Fig. 2 is the leakage sealing device cross-sectional view of preventing back of the present utility model.
Specific embodiment
As shown in Figure 1 and Figure 2, for the disclosed a kind of unit of extruding of the utility model, comprise the first extruder, in the first extruder, be provided with successively the thermal treatment zone, fusion zone, mixing district, net-changing device, static mixer, the outlet of described static mixer is communicated with the import of Melt Pump by pipeline, and melt delivery side of pump is communicated with the charge door of the second extruder by pipeline.Heating system is divided into the thermal treatment zone, fusion zone and mixing district, and the thermal treatment zone, fusion zone and mixing district all adopt electric heater heating, and heater uses the cast aluminum heaters with cooling air channel, and the heating power of every section of heater is generally 2-3KW, is preferably 2.5KW.Between cooling air channel and cooling system, keep clear, cooling system adopts wind cooling, adopts alternating current generator to drive centrifugal blower as wind regime, and power of fan is generally 200W-300W, is preferably 250W.
In above-mentioned, be provided with successively the thermal treatment zone, fusion zone, mixing district and extruder head in described the second extruder, the charge door of the thermal treatment zone is connected with Melt Pump by pipeline.Heating system is divided into the thermal treatment zone, fusion zone and mixing district, and the thermal treatment zone, fusion zone and mixing district all adopt electric heater heating, and heater uses the cast aluminum heaters with cooling air channel, and the heating power of every section of heater is generally 3-5KW, is preferably 4KW.Between cooling air channel and cooling system, keep clear, cooling system adopts water cooling.
In above-mentioned, before the charge door of described the second extruder, be provided with and prevent back leakage sealing device 10, describedly prevent back that leakage sealing device comprises gland 11, stuffing-box 12 and machine barrel 16, one end of stuffing-box 12 is set on gland 11, the other end is fixedly connected with machine barrel 16, described gland 11, stuffing-box 12 and machine barrel 16 are all sheathed on screw rod 14, the front side of the inner surface of described stuffing-box 12 is provided with annular boss 40, in cavity between the front end face of the trailing flank of the face of cylinder of screw rod 14 and annular boss 40 and gland 11, be provided with polytetrafluoroethylene (PTFE) pad 15 and airtight and watertight padding 13, airtight and watertight padding 13 is arranged on the side by stuffing-box 12.
In above-mentioned, on the pipeline that the fusion zone of described the first extruder, static mixer and Melt Pump are connected with the second extruder, be respectively equipped with pressure detector 20.
The mixing district of described the second extruder is provided with pressure detector 20, and extruder head is provided with pressure detector and melt temperature detector 30.
In above-mentioned, described melt pump delivery is 20cc, and rotating speed is 0-60rpm.Described the first extruder is single screw extrusion machine or double screw extruder, and the second described extruder is single screw extrusion machine.The main motor current of described the first extruder is 18.5kw; The main motor current of described the second extruder is 37.5kw.
To sum up, the screw diameter of described the first extruder is less than or equal to the screw diameter of the second extruder.As: when the screw diameter of the first extruder is 45mm, the screw diameter of the second extruder is 65mm; When the screw diameter of the first extruder is 65mm, the screw diameter of the second extruder is 90mm; When the screw diameter of the first extruder is 90mm, the screw diameter of the second extruder is 120mm ... the screw diameter that can certainly be set to described the first extruder equals the screw diameter of the second extruder, in the present embodiment, preferably the screw diameter of the first extruder is less than the screw diameter of the second extruder.
Described in the present embodiment, extrude unit, when work, in the first extruder, entered successively the thermal treatment zone, fusion zone, mixing district, net-changing device, static mixer, entering into Melt Pump afterwards, by entering into the second extruder after Melt Pump, again in the second extruder successively behind the thermal treatment zone, fusion zone, mixing district, from extruder head, extrude.And the pressure detector 20, the melt temperature detector 30 that arrange are therein the current operating pressure of real-time detection and temperature, to facilitate further regulation and control accurately of do.
Above-described embodiment is only preferred embodiment of the present utility model, not limits according to this protection domain of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection domain of the present utility model.

Claims (9)

1. extrude unit for one kind, comprise the first extruder, in the first extruder, be provided with successively the thermal treatment zone, fusion zone, mixing district, net-changing device, static mixer, it is characterized in that: the outlet of described static mixer is communicated with the import of Melt Pump by pipeline, melt delivery side of pump is communicated with the charge door of the second extruder by pipeline.
2. the unit of extruding according to claim 1, is characterized in that: in described the second extruder, be provided with successively the thermal treatment zone, fusion zone, mixing district and extruder head, the charge door of the thermal treatment zone is connected with Melt Pump by pipeline.
3. the unit of extruding according to claim 2, it is characterized in that: before the charge door of described the second extruder, be provided with and prevent back leakage sealing device, describedly prevent back that leakage sealing device comprises gland, stuffing-box and machine barrel, one end of stuffing-box is set on gland, the other end is fixedly connected with machine barrel, described gland, stuffing-box and machine barrel are all sheathed on screw rod, the front side of the inner surface of described stuffing-box is provided with annular boss, in cavity between the front end face of the face of cylinder of screw rod and the trailing flank of annular boss and gland, be provided with polytetrafluoroethylene (PTFE) pad and airtight and watertight padding, airtight and watertight padding is arranged on the side by stuffing-box.
4. the unit of extruding according to claim 1, is characterized in that: on the pipeline that the fusion zone of described the first extruder, static mixer and Melt Pump are connected with the second extruder, be respectively equipped with pressure detector.
5. the unit of extruding according to claim 2, is characterized in that: the mixing district of described the second extruder is provided with pressure detector, and extruder head is provided with pressure detector and melt temperature detector.
6. the unit of extruding according to claim 1, is characterized in that: described melt pump delivery is 20cc, and rotating speed is 0-60rpm.
7. the unit of extruding according to claim 1, is characterized in that: described the first extruder is single screw extrusion machine or double screw extruder, and the second described extruder is single screw extrusion machine.
8. the unit of extruding according to claim 1, is characterized in that: the main motor current of described the first extruder is 18.5kw; The main motor current of described the second extruder is 37.5kw.
9. according to the unit of extruding described in claim 1-8 any one, it is characterized in that: the screw diameter of described the first extruder is less than or equal to the screw diameter of the second extruder.
CN201420323186.XU 2014-06-17 2014-06-17 Extruder unit Active CN203901687U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420323186.XU CN203901687U (en) 2014-06-17 2014-06-17 Extruder unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420323186.XU CN203901687U (en) 2014-06-17 2014-06-17 Extruder unit

Publications (1)

Publication Number Publication Date
CN203901687U true CN203901687U (en) 2014-10-29

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CN (1) CN203901687U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104029372A (en) * 2014-06-17 2014-09-10 天台诚一新材料有限公司 Extruder unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104029372A (en) * 2014-06-17 2014-09-10 天台诚一新材料有限公司 Extruder unit

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GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20170629

Address after: 6, No. 28, building 2, building 1, 1 West Avenue, Qingyang District, Sichuan, Chengdu, 610000

Patentee after: Liu Ke

Address before: 317200, Zhejiang City, Taizhou province Tiantai County Baihe Town under the road

Patentee before: The sincere new material Co., Ltd of balcony

TR01 Transfer of patent right