CN103101180A - Screw rod of single screw extruder - Google Patents
Screw rod of single screw extruder Download PDFInfo
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- CN103101180A CN103101180A CN2013100750681A CN201310075068A CN103101180A CN 103101180 A CN103101180 A CN 103101180A CN 2013100750681 A CN2013100750681 A CN 2013100750681A CN 201310075068 A CN201310075068 A CN 201310075068A CN 103101180 A CN103101180 A CN 103101180A
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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
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
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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
- B29C48/397—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 using a single screw
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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
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
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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
- B29C48/64—Screws with two or more threads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a screw rod of a single screw extruder. The screw rod sequentially comprises a feeding section, a compression separation section and a metering section from front to back, wherein the feeding section is provided with a main thread, the compression separation section is provided with a main thread and an auxiliary thread, and the metering section is provided with a main thread. The screw rod is characterized in that a mixed section is arranged between the compression separation section and the metering section, is provided with main threads and auxiliary threads, and sequentially comprises a plurality of mixed subsections from front to back; the bottom diameters of the main threads on the odd mixed subsections gradually decrease from front to back, and the bottom diameters of the auxiliary threads on the odd mixed subsections gradually increase; and the bottom diameters of the main threads on the even mixed subsections gradually increase from front to back, and the bottom diameters of the auxiliary threads on the even mixed subsections gradually decrease from front to back. According to the screw rod provided by the invention, the bottom diameters of the main and auxiliary threads on the mixed change alternately, so that materials can be alternately compressed and relaxed, completely plasticized and uniformly mixed. Therefore, the plastic material extruded by the single screw extruder with the screw rod is high in viscosity, and a plastic product produced by the extruder has few crystal points and bubbles.
Description
Technical field
The present invention relates to the parts of extruder, be specifically related to a kind of screw rod of single screw extrusion machine.
Background technology
At present, adopt extruder to extrude in the process of processing plastic goods (as PETG (PET) goods), device therefor is generally: adopt not the single screw extrusion machine with degassing function, and support the use crystallizing and drying equipment, plastic raw materials is sent into single screw extrusion machine and is extruded processing after crystallizing and drying equipment is done the dry processing of crystallization; Perhaps adopt double screw extruder or multi-screw extruder with exhaust structure, plastic raw materials can directly send into this double screw extruder or multi-screw extruder is extruded processing.
Adopt not extrude with the single screw extrusion machine of degassing function to add man-hour, often following problem can occur: 1, melt mixed is even not, so that the plastic products (as the PET goods) that make crystalline substance is put and bubble is more; 2, in order to realize plasticizing effect preferably, require screw rod to have larger compression ratio, it is larger that this can cause the plastics materials temperature to raise, so that the plastics materials viscosity of extruding is low, and the plastic products color that makes is partially yellow; 3, in extrusion process, energy consumption is high.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of screw rod of single screw extrusion machine, and the plastics materials viscosity that the single screw extrusion machine of this screw rod of employing is extruded is higher, and the plastic products that make crystalline substance is put and bubble is few.The technical scheme that adopts is as follows:
a kind of screw rod of single screw extrusion machine, comprise successively feed zone from A-P, compression segregation section and metering section, feed zone is provided with main thread, compression segregation section is provided with main thread and deputy thread, metering section is provided with main thread, it is characterized in that: be provided with mixing section between described compression segregation section and metering section, mixing section is provided with main thread and deputy thread, mixing section comprises a plurality of mixing segments successively from A-P, wherein on odd number mixing segment the end of main thread without leave A-P reduce gradually, the end of deputy thread without leave A-P increase gradually, on even number mixing segment the end of main thread without leave A-P increase gradually, the end of deputy thread without leave A-P reduce gradually.
Above-mentioned screw rod is followed successively by feed zone, compression segregation section, mixing section and metering section from A-P.At feed zone, material enters screw rod and fusing, flows to compression segregation section after the formation melt; Compression segregation section has melt screw channel and solid screw channel, the solid of the melt in material with not melting can be separated, and improves melting efficiency, tentatively material is plastified; On mixing section, the major-minor core diameter of thread alternately changes (being corrugated), realizes the compression of material, the alternately generation of loosening, and finally makes material plastify fully and mix; Metering section makes from the material melting homogenizing of mixing section and is quantitatively transferred to extruder die head.
The draw ratio of preferred described screw rod is (30-37): 1.
Above-mentioned mixing section has two melt screw channels, wherein forms the first melt screw channel between main thread and deputy thread, forms the second melt screw channel between deputy thread and main thread.Usually, in above-mentioned mixing section, rear one footpath, the end of mixing segment front end main thread equals the footpath, the end of last mixing segment rear end main thread, rear one footpath, the end of mixing segment front end deputy thread equals the footpath, the end of last mixing segment rear end deputy thread, makes the first melt screw channel and the second melt screw channel in the adjacent two adjoiner smooth transitions that mix segments.
On preferred above-mentioned mixing section, on odd number mixing segment, the outer A-P without leave of main thread reduces gradually, the outer A-P without leave of deputy thread increases gradually, and on even number mixing segment, the outer A-P without leave of main thread increases gradually, the outer A-P without leave of deputy thread reduces gradually.Larger position, footpath at the bottom of main thread, the material in the first melt screw channel can be crossed the deputy thread top and be overflowed in the second melt screw channel; Larger position, footpath at the bottom of deputy thread, material in the second melt screw channel can be crossed the main thread top and overflow in the first melt screw channel, like this, material (fused materials) along mixing section in the process that A-P is carried, the first melt screw channel can carry out each other material with the second melt screw channel and exchange, and makes mixing of materials more even.
Preferred above-mentioned mixing section comprises successively that from A-P 3-6 is mixed segment.in a kind of concrete scheme, above-mentioned mixing section comprises successively that from A-P first mixes segment, second mixes segment, the 3rd mixes segment and the 4th mixes segment, the first footpath, the end and external diameter that mixes main thread on segment all reduces gradually from A-P, the second footpath, the end and external diameter that mixes main thread on segment all increases gradually from A-P, the 3rd footpath, the end and the external diameter that mixes main thread on segment all reduces gradually from A-P, the 4th footpath, the end and the external diameter that mixes main thread on segment all increases gradually from A-P, the first footpath, the end and external diameter that mixes deputy thread on segment all increases gradually from A-P, the second footpath, the end and external diameter that mixes deputy thread on segment all reduces gradually from A-P, the 3rd footpath, the end and the external diameter that mixes deputy thread on segment all increases gradually from A-P, the 4th footpath, the end and the external diameter that mixes deputy thread on segment all reduces gradually from A-P.
On preferred above-mentioned compression segregation section the end of main thread without leave A-P increase gradually (footpath, the end that the footpath, the end of usually compressing segregation section front end main thread equals main thread on feed zone); Compression segregation section comprises compression segregation section leading portion and compression segregation section back segment, on compression segregation section leading portion the end of deputy thread without leave A-P increase gradually (footpath, the end that the footpath, the end of usually compressing segregation section leading portion front end deputy thread equals main thread on feed zone), on compression segregation section back segment the end of deputy thread without leave A-P reduce gradually (footpath, the end that the footpath, the end of usually compressing segregation section back segment front end deputy thread equals to compress the deputy thread of segregation section leading portion rear end), the 3-7%(that the length of described compression segregation section leading portion accounts for compression segregation section total length is 4-6% more preferably).Like this, the compression segregation section on, the end of main thread without leave A-P increase gradually, and the footpath, the end of deputy thread reduces gradually from A-P generally, that is to say, along the mass transport direction, the degree of depth of solid screw channel reduces gradually, and the degree of depth of melt screw channel increases generally gradually.Usually the external diameter that compresses main thread on segregation section is consistent, the external diameter of deputy thread also is consistent.On preferred compressed segregation section, the external diameter of deputy thread is less than the external diameter of main thread, and along with the conveying of material, the solid material in solid screw channel melting gradually becomes melt, and enters into the melt screw channel.
On common above-mentioned feed zone, the spiral shell rib width of the main thread of each several part is consistent with footpath, the end, and on metering section, the spiral shell rib width of the main thread of each several part is also consistent with footpath, the end; The footpath, the end of metering section is greater than the footpath, the end of feed zone, and the footpath, the end of metering section and the footpath, the end of feed zone are determined according to extruding required compression ratio.
In specific design, owing to having additional deputy thread on compression segregation section and mixing section, the pitch than main thread on feed zone and metering section is large usually therefore to compress the pitch of main thread on segregation section and mixing section; On compression segregation section, the pitch of main thread is usually consistent with the pitch of main thread on mixing section; Above-mentioned feed zone comprises feed zone leading portion and feed zone back segment, wherein on the feed zone leading portion, the pitch of the main thread of each several part is consistent, on the feed zone back segment, the pitch of main thread increases gradually from A-P, and the main thread pitch of feed zone back segment rear end is consistent with the main thread pitch of compression segregation section; Above-mentioned metering section comprises metering section leading portion and metering section back segment, wherein on the metering section leading portion, the pitch of main thread reduces gradually from A-P, on the metering section back segment, the pitch of the main thread of each several part is consistent, and the main thread pitch of metering section leading portion front end is consistent with the main thread pitch of mixing section.
The present invention is by setting up mixing section in compression segregation section back, on mixing section, the major-minor core diameter of thread alternately changes, realize the compression of material, the alternately generation of loosening, finally make material plastify fully and mix, therefore, plastics (as the PET) material viscosity that the single screw extrusion machine of this screw rod of employing is extruded higher (by the test of viscosity measuring instrument, before and after processing, the viscosity of material descends less than 6%), and the brilliant point of the plastic products that make and bubble are few, meet industry standard.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiment of the present invention;
Fig. 2 is the footpath, the end of main thread on screw rod shown in Figure 1 and the variation schematic diagram of external diameter;
Fig. 3 is the footpath, the end of deputy thread on compression segregation section and mixing section and the variation schematic diagram of external diameter.
The specific embodiment
As shown in Figure 1-Figure 3, the screw rod of this single screw extrusion machine comprises feed zone 1, compression segregation section 2, mixing section 3 and metering section 4 successively from A-P, feed zone 1 is provided with main thread 5, compression segregation section 2 is provided with main thread 5 and deputy thread 6, mixing section 3 is provided with main thread 5 and deputy thread 6, and metering section 4 is provided with main thread 5.In the present embodiment, feed zone 1 comprises feed zone 1 leading portion and feed zone 1 back segment, wherein on feed zone 1 leading portion, the pitch of the main thread 5 of each several part is consistent, on feed zone 1 back segment, the pitch of main thread 5 increases gradually from A-P, and main thread 5 pitch of feed zone 1 back segment rear end are consistent with main thread 5 pitch of compression segregation section 2; On compression segregation section 2, the pitch of the main thread 5 of each several part is consistent, and on compression segregation section 2, the pitch of the deputy thread 6 of each several part is also consistent; On mixing section 3, the pitch of the main thread 5 of each several part is consistent, and on mixing section 3, the pitch of the deputy thread 6 of each several part is also consistent; On compression segregation section 2 on pitch and the mixing section 3 of main thread 5 pitch of main thread 5 consistent; Metering section 4 comprises metering section 4 leading portions and metering section 4 back segments, wherein on metering section 4 leading portions, the pitch of main thread 5 reduces gradually from A-P, main thread 5 pitch of metering section 4 leading portion front ends are consistent with main thread 5 pitch of mixing section 4, and on metering section 4 back segments, the pitch of the main thread 5 of each several part is consistent.
On feed zone 1, the spiral shell rib width of the main thread 5 of each several part is consistent with footpath, the end, and on metering section 4, the spiral shell rib width of the main thread 5 of each several part is also consistent with footpath, the end; The footpath, the end of metering section 4 is greater than the footpath, the end of feed zone 1, and the footpath, the end of metering section 4 and the footpath, the end of feed zone 1 are determined according to extruding required compression ratio.
On compression segregation section 2 end of main thread 5 without leave A-P increase gradually (footpath, the end of compression segregation section 2 front end main threads 5 equals the footpath, the end of main thread 5 on feed zone 1); Compression segregation section 2 comprises compression segregation section leading portion 21 and compression segregation section back segment 22, on compression segregation section leading portion 21 end of deputy thread 6 without leave A-P increase gradually (footpath, the end of compression segregation section leading portion 21 front end deputy threads 6 equals the footpath, the end of main thread 5 on feed zone 1), on compression segregation section back segment 22 end of deputy thread 6 without leave A-P reduce gradually (footpath, the end of compression segregation section back segment 22 front end deputy threads 6 equals to compress the footpath, the end of segregation section leading portion 21 rear end deputy threads 6), in the present embodiment, the length of compression segregation section leading portion 21 accounts for 5.6% of compression segregation section 2 total lengths.On compression segregation section 2, form melt screw channel 7 between main thread 5 and deputy thread 6, form solid screw channel 8 between deputy thread 6 and main thread 5; Along the mass transport direction, the degree of depth of solid screw channel 8 reduces gradually, and the degree of depth of melt screw channel 7 increases generally gradually.On compression segregation section 2, the external diameter of main thread 5 is consistent, and on compression segregation section 2, the external diameter of deputy thread 6 also is consistent, and on compression segregation section 2, the external diameter of deputy thread 6 is less than the external diameter of main thread 5.
Below adopt one group of specific design parameter to this screw rod be described further (referring to figs. 2 and 3, in Fig. 2, curve 11,13 illustrates respectively the footpath, the end of main thread 5 on screw rod and the Changing Pattern of external diameter, and in Fig. 3, curve 12,14 illustrates respectively the footpath, the end of deputy thread 6 on compression segregation section 2 and mixing section 3 and the Changing Pattern of external diameter): the draw ratio of screw rod is 34.2:1.The length of feed zone 1 is that 9Ds(Ds represents the screw rod external diameter, i.e. the external diameter of main thread 5 on feed zone 1), the spiral shell rib width of main thread 5 is that the footpath, the end of 0.1Ds, main thread 5 is 0.65Ds; The length of feed zone 1 leading portion is 7Ds, and the length of feed zone 1 back segment is 2Ds, and on feed zone 1 leading portion, the pitch of main thread 5 is 1Ds, and the pitch of the main thread 5 of feed zone 1 back segment front end is 1Ds, and main thread 5 pitch of feed zone 1 back segment rear end are 1.2Ds.The length of compression segregation section 2 is 10.7Ds, and the length of compression segregation section leading portion 21 is 0.6Ds, and the length of compression segregation section back segment 22 is 10.1Ds; On compression segregation section 2, the pitch of main thread 5 and deputy thread 6 is 1.2Ds, on compression segregation section 2, the distance of deputy thread 6 initiating terminals and main thread 5 is 0.32Ds, on compression segregation section, the footpath, the end of 2 main threads 5 increases to 0.94Ds gradually by 0.65Ds, on compression segregation section leading portion 21, the footpath, the end of deputy thread 6 increases to 0.88Ds gradually by 0.65Ds, and on compression segregation section back segment 22, the footpath, the end of deputy thread 6 is reduced to 0.7Ds gradually by 0.88Ds.the length of mixing section 3 is 11Ds, and first mixes segment 31, the second mixing segment 32, the 3rd mixing segment 33 and the 4th length of mixing segment 34 is respectively 3.7Ds, 2.4Ds, 2.4Ds, 2.5Ds, on the first footpath, the end of mixing main thread 5 on segment 31 is reduced to gradually footpath, the end that 0.79Ds(first mixes main thread 5 initiating terminals on segment 31 and is compressed segregation section 2 by 0.94Ds, the footpath, the end of main thread 5 ends is consistent), the second footpath, the end of mixing main thread 5 on segment 32 increases to 0.91Ds gradually by 0.79Ds, the 3rd footpath, the end of mixing main thread 5 on segment 33 is reduced to 0.8Ds gradually by 0.91Ds, the 4th footpath, the end of mixing main thread 5 on segment 34 is consistent by the footpath, the end that 0.8Ds increases to main thread 5 on footpath, the end that 0.9Ds(the 4th mixes main thread 5 ends on segment 34 and metering section 4 gradually), on the first footpath, the end of mixing deputy thread 6 on segment 31 is increased to gradually footpath, the end that 0.92Ds(first mixes deputy thread 6 initiating terminals on segment 31 and compressed segregation section 2 by 0.7Ds, the footpath, the end of deputy thread 6 ends is consistent), the second footpath, the end of mixing deputy thread 6 on segment 32 is reduced to 0.79Ds gradually by 0.92Ds, the 3rd footpath, the end of mixing deputy thread 6 on segment 33 increases to 0.93Ds gradually by 0.79Ds, the 4th footpath, the end of mixing deputy thread 6 on segment 34 is consistent by the footpath, the end that 0.93Ds is reduced to main thread 5 on footpath, the end that 0.9Ds(the 4th mixes deputy thread 6 ends on segment 34 and metering section 4 gradually), on mixing section 3, the pitch of main thread 5 and deputy thread 6 is 1.2Ds.The length of metering section 4 is that the spiral shell rib width of 3.5Ds, main thread 5 is that the footpath, the end of 0.1Ds, main thread 5 is 0.9Ds, the length of metering section 4 leading portions is 2 Ds, the length of metering section 4 back segments is 1.5 Ds, the pitch of the main thread 5 of metering section 4 leading portion front ends is 1.2 Ds, the pitch of the main thread 5 of metering section 4 leading portion rear ends is 1Ds, and on metering section 4 back segments, the pitch of main thread 5 is 1Ds.
Brief description has the operation principle of the single screw extrusion machine of this screw rod once:
At feed zone 1, material enters screw rod and fusing, flows to compression segregation section 2.
On mixing section 3, the major-minor core diameter of thread alternately changes (being corrugated), realizes the compression of material, the alternately generation of loosening, and finally makes the material from compression segregation section 2 plastify fully and mix.On mixing section 3, in larger position, main thread footpath, 5 end, the material in the first melt screw channel 9 can be crossed deputy thread 6 tops and overflow in the second melt screw channel 10; In larger position, deputy thread footpath, 6 end, material in the second melt screw channel 10 can be crossed main thread 5 tops and overflow in the first melt screw channel 9, like this, material (fused materials) along mixing section 3 in the process that A-P is carried, the first melt screw channel 9 can carry out each other material with the second melt screw channel 10 and exchange, and makes mixing of materials more even.
Metering section 4 makes from the material melting homogenizing of mixing section 3 and is quantitatively transferred to extruder die head.
Claims (6)
1. the screw rod of a single screw extrusion machine, comprise successively feed zone from A-P, compression segregation section and metering section, feed zone is provided with main thread, compression segregation section is provided with main thread and deputy thread, metering section is provided with main thread, it is characterized in that: be provided with mixing section between described compression segregation section and metering section, mixing section is provided with main thread and deputy thread, mixing section comprises a plurality of mixing segments successively from A-P, wherein on odd number mixing segment the end of main thread without leave A-P reduce gradually, the end of deputy thread without leave A-P increase gradually, on even number mixing segment the end of main thread without leave A-P increase gradually, the end of deputy thread without leave A-P reduce gradually.
2. the screw rod of single screw extrusion machine according to claim 1, it is characterized in that: on described mixing section, on odd number mixing segment, the outer A-P without leave of main thread reduces gradually, the outer A-P without leave of deputy thread increases gradually, and on even number mixing segment, the outer A-P without leave of main thread increases gradually, the outer A-P without leave of deputy thread reduces gradually.
3. the screw rod of single screw extrusion machine according to claim 1 and 2 is characterized in that: described mixing section comprises successively that from A-P 3-6 is mixed segment.
4. the screw rod of single screw extrusion machine according to claim 2, it is characterized in that: described mixing section comprises successively that from A-P first mixes segment, second mixes segment, the 3rd mixes segment and the 4th mixes segment, the first footpath, the end and external diameter that mixes main thread on segment all reduces gradually from A-P, the second footpath, the end and external diameter that mixes main thread on segment all increases gradually from A-P, the 3rd footpath, the end and the external diameter that mixes main thread on segment all reduces gradually from A-P, the 4th footpath, the end and the external diameter that mixes main thread on segment all increases gradually from A-P, the first footpath, the end and external diameter that mixes deputy thread on segment all increases gradually from A-P, the second footpath, the end and external diameter that mixes deputy thread on segment all reduces gradually from A-P, the 3rd footpath, the end and the external diameter that mixes deputy thread on segment all increases gradually from A-P, the 4th footpath, the end and the external diameter that mixes deputy thread on segment all reduces gradually from A-P.
5. the screw rod of according to claim 1,2 or 4 described single screw extrusion machines is characterized in that: on described compression segregation section the end of main thread without leave A-P increase gradually; Compression segregation section comprises compression segregation section leading portion and compression segregation section back segment, on compression segregation section leading portion the end of deputy thread without leave A-P increase gradually, on compression segregation section back segment the end of deputy thread without leave A-P reduce gradually, the length of described compression segregation section leading portion accounts for the 3-7% of compression segregation section total length.
6. the screw rod of single screw extrusion machine according to claim 5 is characterized in that: on described compression segregation section, the external diameter of main thread is consistent, the external diameter of deputy thread also is consistent, and on compression segregation section, the external diameter of deputy thread is less than the external diameter of main thread.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310075068.1A CN103101180B (en) | 2013-03-09 | 2013-03-09 | Screw rod of single screw extruder |
| PCT/CN2013/001114 WO2014139065A1 (en) | 2013-03-09 | 2013-09-22 | Screw rod of single screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310075068.1A CN103101180B (en) | 2013-03-09 | 2013-03-09 | Screw rod of single screw extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103101180A true CN103101180A (en) | 2013-05-15 |
| CN103101180B CN103101180B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310075068.1A Active CN103101180B (en) | 2013-03-09 | 2013-03-09 | Screw rod of single screw extruder |
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| Country | Link |
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| CN (1) | CN103101180B (en) |
| WO (1) | WO2014139065A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693865A (en) * | 2013-12-25 | 2014-04-02 | 谢明星 | Production equipment and production method of cold-resistant safety glass laminated film |
| WO2014139065A1 (en) * | 2013-03-09 | 2014-09-18 | 广东达诚机械有限公司 | Screw rod of single screw extruder |
| CN106042307A (en) * | 2016-07-26 | 2016-10-26 | 浙江君悦标准件有限公司 | Injection molding screw rod |
| CN107756761A (en) * | 2017-11-21 | 2018-03-06 | 南京科森挤出装备有限公司 | Parallel double-screw taper thread covers and taper hole cylinder |
| EP2786853B1 (en) | 2013-04-02 | 2021-10-13 | Konstrukta-TireTech, a.s. | Decompression screw for processing rubber compounds |
| CN115157626A (en) * | 2022-06-07 | 2022-10-11 | 安徽普瑞斯电工机械有限公司 | Special extrusion screw for low-smoke halogen-free flame-retardant cable material |
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| CN108556399B (en) * | 2018-06-12 | 2024-02-06 | 深圳美香创新电器有限公司 | Press subassembly and oil press |
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2013
- 2013-03-09 CN CN201310075068.1A patent/CN103101180B/en active Active
- 2013-09-22 WO PCT/CN2013/001114 patent/WO2014139065A1/en active Application Filing
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014139065A1 (en) * | 2013-03-09 | 2014-09-18 | 广东达诚机械有限公司 | Screw rod of single screw extruder |
| EP2786853B1 (en) | 2013-04-02 | 2021-10-13 | Konstrukta-TireTech, a.s. | Decompression screw for processing rubber compounds |
| CN103693865A (en) * | 2013-12-25 | 2014-04-02 | 谢明星 | Production equipment and production method of cold-resistant safety glass laminated film |
| CN106042307A (en) * | 2016-07-26 | 2016-10-26 | 浙江君悦标准件有限公司 | Injection molding screw rod |
| CN107756761A (en) * | 2017-11-21 | 2018-03-06 | 南京科森挤出装备有限公司 | Parallel double-screw taper thread covers and taper hole cylinder |
| CN115157626A (en) * | 2022-06-07 | 2022-10-11 | 安徽普瑞斯电工机械有限公司 | Special extrusion screw for low-smoke halogen-free flame-retardant cable material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103101180B (en) | 2014-12-10 |
| WO2014139065A1 (en) | 2014-09-18 |
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