CN211616570U - Screw rod structure in extruder - Google Patents
Screw rod structure in extruder Download PDFInfo
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- CN211616570U CN211616570U CN201922141903.2U CN201922141903U CN211616570U CN 211616570 U CN211616570 U CN 211616570U CN 201922141903 U CN201922141903 U CN 201922141903U CN 211616570 U CN211616570 U CN 211616570U
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Abstract
The utility model discloses a screw rod structure in extruder, including the body of rod, the body of rod is by feeding section in proper order, the compression section, melting section and measurement section are constituteed, be provided with first spiral shell arris section and second spiral shell arris section on the feeding section, be provided with first spiral shell groove on the first spiral shell arris section, be provided with the second spiral shell groove on the second spiral shell arris section, be provided with third spiral shell arris section on the compression section, be provided with the third spiral shell groove on the third spiral shell arris section, be provided with fourth spiral shell arris section on the melting section, be provided with the fourth spiral shell groove on the fourth spiral shell arris section, be provided with fifth spiral shell arris section on the measurement section, be provided with the fifth spiral shell groove on the fifth spiral shell arris section, first spiral shell arris section, second spiral shell arris section, third spiral shell arris section, fourth spiral shell arris section, the spiral edge of fifth spiral shell arris section is single spiral shell. The utility model discloses divide into the four sections with the screw rod of extruder, the screw rod wholly presents the toper, and the groove depth on every section diminishes gradually, does benefit to the smooth and easy ejection of compact to the spiral shell arris angle on every section also is special design, controls the speed of the ejection of compact.
Description
Technical Field
The utility model relates to an extruder screw rod technical field specifically is a screw rod structure in extruder.
Background
The screw is one of the core parts of the extrusion equipment, and is mainly used for transforming solid plastic granules or powder into stable and uniform plastic melt through the steps of conveying, compacting, compressing, melting, homogenizing, metering and the like, and outputting the plastic melt to a die head and auxiliary equipment to produce a product meeting the requirements. The screw extruder in the prior art has the defects of poor mixing, low yield and the like, and particularly, when the extruder is molten, if the discharging speed is high, the extruder is heated unevenly, and if the discharging speed is low, the extruder is easy to scorch, so the structure of the screw still needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a screw rod structure in extruder possesses simple structure, the good advantage of working effect, has solved the problem of proposing in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a screw rod structure in extruder, includes the body of rod, the body of rod comprises feeding section, compression section, melting section and measurement section in proper order, be provided with first spiral shell arris section and second spiral shell arris section in the feeding section, be provided with first spiral shell groove in the first spiral shell arris section, be provided with the second spiral shell groove in the second spiral shell arris section, be provided with third spiral shell arris section in the compression section, be provided with the third spiral shell groove in the third spiral shell arris section, be provided with fourth spiral shell arris section in the melting section, be provided with the fourth spiral shell groove in the fourth spiral shell arris section, be provided with fifth spiral shell arris section in the measurement section, be provided with the fifth spiral shell groove in the fifth spiral shell arris section, the spiral shell arris section of first spiral shell arris section, second spiral shell arris section, third spiral shell arris section, fourth spiral shell arris section, fifth spiral shell arris section is single spiral shell arris and the spiral direction is.
Preferably, the angle a between the screw edge of the first screw edge section and the axial line of the rod body is 80-84 degrees, and the depth f of the first screw groove is 34-38 mm.
Preferably, the angle b between the screw edge of the second screw edge section and the axial line of the rod body is 78-82 degrees, and the depth g of the second screw groove is 27-31 mm.
Preferably, the angle c between the screw edge of the third screw edge section and the axial line of the rod body is 73-77 degrees, and the depth h of the third screw groove is 26-30 mm.
Preferably, the angle d between the screw edge of the fourth screw edge section and the axial line of the rod body is 56-60 degrees, and the depth i of the fourth screw groove is 24-28 mm.
Preferably, the angle e between the screw edge of the fifth screw edge section and the axial line of the rod body is 58-62, and the depth j of the fifth screw groove is 21-25 mm.
Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses divide into the screw rod of extruder the four sections, be respectively feeding section, compression section, melting section and measurement section, the groove depth on every section diminishes gradually for the screw rod wholly presents the toper, does benefit to the smooth and easy ejection of compact, and the spiral shell arris angle on every section also is special design, controls the speed of the ejection of compact.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In the figure: 1-feeding section, 2-compressing section, 3-melting section, 4-metering section, 6-first spiral edge, 7-second spiral edge, 8-first spiral groove, 9-second spiral groove, 10-third spiral edge, 11-third spiral groove, 12-fourth spiral edge, 13-fourth spiral groove, 14-fifth spiral edge and 15-fifth spiral groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution: a screw structure in an extruder comprises a rod body, the rod body sequentially comprises a feeding section 1, a compression section 2, a melting section 3 and a metering section 4, the length of the feeding section 1 is 900 mm-1000 mm, the length of the compression section 2 is 200 mm-300 mm, the length of the melting section 3 is 400 mm-500 mm, the length of the metering section 4 is 700 mm-800 mm,
the feeding section 1 is provided with a first spiral rib section 6 and a second spiral rib section 7. The angle a between the screw edge of the first screw edge section 6 and the axial line of the rod body is 80-84 degrees, and the angle b between the screw edge of the second screw edge section 7 and the axial line of the rod body is 78-82 degrees. Be provided with first thread groove 8 on the first spiral shell arris section 6, the degree of depth f of first thread groove 8 is 34 ~ 38mm, is provided with second thread groove 9 on the second spiral shell arris section 7, and the degree of depth g of second thread groove 9 is 27 ~ 31 mm.
The compression section 2 is provided with a third spiral rib section 10, the angle c between the spiral rib of the third spiral rib section 10 and the axial line of the rod body is 73-77 degrees, a third spiral groove 11 is arranged on the third spiral rib 10, and the depth h of the third spiral groove 11 is 26-30 mm.
The melting section 3 is provided with a fourth spiral rib section 12, the angle d between the fourth spiral rib section 12 and the axial line of the rod body is 56-60 degrees, a fourth spiral groove 13 is arranged on the fourth spiral rib section 12, and the depth i of the fourth spiral groove 13 is 24-28 mm.
The metering section 4 is provided with a fifth spiral rib section 14, the angle e between the fifth spiral rib section 14 and the axial line of the rod body is 58-62, the fifth spiral rib section 14 is provided with a fifth spiral groove 15, and the depth j of the fifth spiral groove 15 is 21-25 mm.
The spiral edges of the first spiral edge section 6, the second spiral edge section 7, the third spiral edge section 10, the fourth spiral edge section 12 and the fifth spiral edge section 14 are all single spiral edges and have the same spiral direction.
The working principle is as follows: the utility model discloses divide into the four sections with the screw rod of extruder, respectively feed section 1, compression section 2, melting section 3 and measurement section 4, the screw rod wholly presents the toper, and the groove depth in every section diminishes gradually, does benefit to smoothly the ejection of compact to the spiral shell arris angle in every section also is special design, controls the speed of the ejection of compact, makes the speed of the ejection of compact just right, can not lead to being heated evenly because of the speed is too fast, also can not lead to the raw materials burnt because of the speed is too slow to be burnt.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a screw structure in extruder, includes the body of rod, the body of rod comprises feed section (1), compression section (2), melting section (3) and measurement section (4) in proper order, its characterized in that:
the feeding section (1) is provided with a first spiral-edged section (6) and a second spiral-edged section (7), a first screw groove (8) is arranged on the first screw ridge section (6), a second screw groove (9) is arranged on the second screw ridge section (7), a third spiral ridge section (10) is arranged on the compression section (2), a third spiral groove (11) is arranged on the third spiral ridge section (10), a fourth spiral ridge section (12) is arranged on the melting section (3), a fourth spiral groove (13) is arranged on the fourth spiral ridge section (12), the metering section (4) is provided with a fifth spiral ridge section (14), the fifth spiral ridge section (14) is provided with a fifth spiral groove (15), and the spiral ridges of the first spiral ridge section (6), the second spiral ridge section (7), the third spiral ridge section (10), the fourth spiral ridge section (12) and the fifth spiral ridge section (14) are single spiral ridges and have the same spiral direction.
2. A screw structure in an extruder according to claim 1, wherein: the angle a between the screw edge of the first screw edge section (6) and the axial line of the rod body is 80-84 degrees, and the depth f of the first screw groove (8) is 34-38 mm.
3. A screw structure in an extruder according to claim 1, wherein: the angle b between the screw edge of the second screw edge section (7) and the axial line of the rod body is 78-82 degrees, and the depth g of the second screw groove (9) is 27-31 mm.
4. A screw structure in an extruder according to claim 1, wherein: the angle c between the screw edge of the third screw edge section (10) and the axial line of the rod body is 73-77 degrees, and the depth h of the third screw groove (11) is 26-30 mm.
5. A screw structure in an extruder according to claim 1, wherein: the angle d between the screw edge of the fourth screw edge section (12) and the axial line of the rod body is 56-60 degrees, and the depth i of the fourth screw groove (13) is 24-28 mm.
6. A screw structure in an extruder according to claim 1, wherein: the angle e between the screw edge of the fifth screw edge section (14) and the axial line of the rod body is 58-62, and the depth j of the fifth screw groove (15) is 21-25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141903.2U CN211616570U (en) | 2019-12-04 | 2019-12-04 | Screw rod structure in extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141903.2U CN211616570U (en) | 2019-12-04 | 2019-12-04 | Screw rod structure in extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211616570U true CN211616570U (en) | 2020-10-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922141903.2U Active CN211616570U (en) | 2019-12-04 | 2019-12-04 | Screw rod structure in extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211616570U (en) |
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2019
- 2019-12-04 CN CN201922141903.2U patent/CN211616570U/en active Active
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