CN203198231U - Special screw of extruder for online recovery of rim leftovers of non-woven fabrics - Google Patents
Special screw of extruder for online recovery of rim leftovers of non-woven fabrics Download PDFInfo
- Publication number
- CN203198231U CN203198231U CN2013201888590U CN201320188859U CN203198231U CN 203198231 U CN203198231 U CN 203198231U CN 2013201888590 U CN2013201888590 U CN 2013201888590U CN 201320188859 U CN201320188859 U CN 201320188859U CN 203198231 U CN203198231 U CN 203198231U
- Authority
- CN
- China
- Prior art keywords
- screw
- screw rod
- section
- rim
- leftovers
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a special screw of an extruder for online recovery of rim leftovers in a non-woven fabric production line. The special screw comprises a screw and a spiral blade arranged on the screw, wherein the spiral blade spirally extends along the whole length direction of the screw and forms a spiral groove and a screw edge with the screw; and the screw is divided into a feeding section, a compression section and a metering section in sequence from feeding to discharging. The special screw is characterized in that the length-diameter ratio of the screw is (17-19):1, the screw pitch is more than the diameter by 0.7-0.9 time, and the compression ratio is 3.2-3.4. The special screw disclosed by the utility model has the advantages that by reasonable design on the structure of the screw, the requirement on full plasticization of the rim leftovers of the non-woven fabrics can be met, full compression and plasticization of fluffy waste rims and waste silks and vapour discharging are guaranteed, feeding of more edge strips can be guaranteed, and enough retention time for plasticization of the materials can also be guaranteed; and the structural design is reasonable, the continuous production is stable, the quality of a product is reliable, online recovery and extrusion of the rim leftovers of the non-woven fabrics can be met, and simultaneously the labor and the energy consumption are also saved.
Description
Technical field
The utility model belongs to the processing of high molecular material field of mechanical technique, relates to a kind of screw-rod structure of extruder, relates in particular to the bolt special of the online recovery extruder of a kind of non-woven fabric production line rim charge.
Background technology
Extruder is used for multiple particulate material is fully mixed extruding back and output, mainly is used in plastics or rubber and makes the field.Extruder makes it to be the viscosity flow shape with the raw material heating during work, under the situation of pressurization, make it by having the mouth mould of definite shape, pass through cooling and become the cross section then with mouthful non-individual body that the mould shape is similar, the raw material that makes it to have certain geometrical shape and size becomes elastomeric state by viscous state, last cooling and shaping is glassy state, obtains needed goods.
Screw rod is the vitals of plastic extruder, directly has influence on last finished product typing.In the nonwoven production process, can produce a large amount of slitter edges and waste silk.Traditional method can be applied to nonwoven production more again with slitter edge and waste silk recovery granulation, but can increase manpower spending and energy consumption like this.If adopt extruder production, this to the requirement of screw rod than higher, this is because the nonwoven rim charge is more fluffy, volume is big during charging, and the fusion plastification time ratio resin particle of nonwoven rim charge will be grown, and can produce a lot of steam in the compression plasticizing process, existing screw rod can not well satisfy the requirement that the nonwoven rim charge is extruded.Therefore need develop the bolt special of the online recovery extruder of a kind of nonwoven rim charge, just can directly melt slitter edge and waste silk again and clamp-on inside the nonwoven main extruder, carry out nonwoven production again, save manpower and energy consumption.
Summary of the invention
Technical problem to be solved in the utility model is the bolt special that the online recovery extruder of a kind of non-woven fabric production line rim charge is provided at the above-mentioned state of the art, characteristics with reasonable in design, can fully plastify the nonwoven rim charge, increase the stability of the continuous quality of production.
The utility model solves the problems of the technologies described above the technical scheme that adopts: the bolt special of the online recovery extruder of a kind of non-woven fabric production line rim charge, comprise screw rod and be arranged on flight on the screw rod, described flight extends spirally and forms spiral grooves and spiral shell rib with screw rod along the whole length direction of screw rod, described screw rod is divided into feed zone, compression section and metering section successively from being fed to discharging, it is characterized in that: the draw ratio of described screw rod is 17～19:1, pitch is 0.7～0.9 times of diameter, and compression ratio is 3.2～3.4.
As improvement, described spiral grooves is from screw feed section to compression section by going deep into shallow gradual change type structure, and the spiral grooves degree of depth of the described compression section of spiral grooves depth ratio of described metering section is little and remain unchanged.
As improvement, described screw rod is at the spiral shell rib of charging aperture 10～15 degree that lean forward.
Improve, the draw ratio of described screw rod is 18:1 again, and pitch is 0.8 times of diameter.
At last, the diameter of described screw rod is 105mm, 120mm and three specifications of 135mm.
Compared with prior art, advantage of the present utility model is: the structure to screw rod reasonably designs, and adopts the screw rod of the draw ratio of 18:1, reasonably compression ratio, can satisfy the requirement that the nonwoven rim charge fully plastifies, guarantee that fluffy slitter edge and waste silk can compress plasticizing and discharge water vapour fully; Pitch is 0.8 times of diameter, and can guaranteeing to eat into, more slitter edge and waste silk also can guarantee that material has the abundant time of staying to plastify; Spiral shell rib 10～15 degree that lean forward in charging aperture place adapt to fluffy slitter edge and the state of waste silk.The utility model reasonable in design is produced stable, reliable product quality continuously, can satisfy the online recovery extruding of nonwoven rim charge, has also saved manpower and energy consumption simultaneously.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2, Fig. 3 are the layout enlarged drawing in I among Fig. 1, II zone.
The specific embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
As shown in Figure 1, the bolt special of the online recovery extruder of a kind of non-woven fabric production line rim charge, comprise screw rod 1 and be arranged on flight 2 on the screw rod 1, the thickness of flight 2 is about 10mm, and flight 2 extends spirally and forms spiral grooves and spiral shell rib 3 with screw rod 1 along the whole length direction of screw rod 1; One end of screw rod 1 close discharging opening coning, thereby because can not fully plastifying edge strip, too small draw ratio gets rid of moisture, excessive draw ratio is too plasticizing then, the capital causes nonwoven production the phenomenon of fracture of wire to occur, therefore the draw ratio of screw rod 1 is designed to 18:1, the diameter of screw rod 1 is 105mm, and length is 1890mm; Screw rod 1 is divided into feed zone A, compression section B and metering section C successively from being fed to discharging, and the pitch of screw rod 1 is 0.8 times of diameter, and can guaranteeing to eat into, more edge strip also can guarantee that material has the abundant time of staying to plastify; The compression ratio of screw rod 1 is 3.2～3.4, spiral grooves is by going deep into shallow gradual change type structure from the feed zone A of screw rod 1 to compression section B, the spiral grooves degree of depth of the spiral grooves depth ratio compression section B of metering section C is little and remain unchanged, and the spiral grooves degree of depth maximum of feed zone A, and footpath, the end of corresponding screw rod 1 also is contracted to about the 68mm at charging aperture place by the 95mm of metering section C, and this structure can guarantee that the nonwoven rim charge compresses plasticizing and discharge water vapour fully; As shown in Figure 3, in order to adapt to the state of the fluffy slitter edge of nonwoven and waste silk, at the spiral shell rib 3(of charging aperture as shown in Figure 3) 10～15 degree are designed to lean forward.
The diameter of screw rod 1 can also be designed to 120mm and two kinds of specifications of 135mm in addition.
Claims (5)
1. the bolt special of the online recovery extruder of non-woven fabric production line rim charge, comprise screw rod and be arranged on flight on the screw rod, described flight extends spirally and forms spiral grooves and spiral shell rib with screw rod along the whole length direction of screw rod, described screw rod is divided into feed zone, compression section and metering section successively from being fed to discharging, it is characterized in that: the draw ratio of described screw rod is 17～19:1, pitch is 0.7～0.9 times of diameter, and compression ratio is 3.2～3.4.
2. bolt special according to claim 1, it is characterized in that: described spiral grooves is from screw feed section to compression section by going deep into shallow gradual change type structure, and the spiral grooves degree of depth of the described compression section of spiral grooves depth ratio of described metering section is little and remain unchanged.
3. bolt special according to claim 2 is characterized in that: described screw rod is at the spiral shell rib of charging aperture 10～15 degree that lean forward.
4. bolt special according to claim 1, it is characterized in that: the draw ratio of described screw rod is 18:1, pitch is 0.8 times of diameter.
5. bolt special according to claim 1, it is characterized in that: the diameter of described screw rod is 105mm, 120mm and three specifications of 135mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201888590U CN203198231U (en) | 2013-04-15 | 2013-04-15 | Special screw of extruder for online recovery of rim leftovers of non-woven fabrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201888590U CN203198231U (en) | 2013-04-15 | 2013-04-15 | Special screw of extruder for online recovery of rim leftovers of non-woven fabrics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203198231U true CN203198231U (en) | 2013-09-18 |
Family
ID=49142370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201888590U Expired - Lifetime CN203198231U (en) | 2013-04-15 | 2013-04-15 | Special screw of extruder for online recovery of rim leftovers of non-woven fabrics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203198231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114619586A (en) * | 2022-04-15 | 2022-06-14 | 铜陵格瑞特挤出技术有限公司 | Granulation equipment is retrieved in step on line to non-woven fabrics strake |
-
2013
- 2013-04-15 CN CN2013201888590U patent/CN203198231U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114619586A (en) * | 2022-04-15 | 2022-06-14 | 铜陵格瑞特挤出技术有限公司 | Granulation equipment is retrieved in step on line to non-woven fabrics strake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |