CN204914516U - Hot melt adhesive extruder device - Google Patents
Hot melt adhesive extruder device Download PDFInfo
- Publication number
- CN204914516U CN204914516U CN201520596128.9U CN201520596128U CN204914516U CN 204914516 U CN204914516 U CN 204914516U CN 201520596128 U CN201520596128 U CN 201520596128U CN 204914516 U CN204914516 U CN 204914516U
- Authority
- CN
- China
- Prior art keywords
- screw
- compression section
- feed zone
- flight
- screw rod
- 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 - Fee Related
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model belongs to the technical field of the chemical industry equipment, a hot melt adhesive extruder device screw rod is related to, the screw rod includes: feed zone, compression section, even section. Feed zone feed cylinder stack shell sets up two at least baffles, and the screw rod screw thread is the cockscomb structure, and height of sidewall is less than the radial depth of flight sawtooth, and this is located the baffle and increases friction and shear effect to the material, makes different material misce benes, compression section pitch is less than the feed zone. A compression section screw thread is the cockscomb structure, and on the screw thread of jag, center line position has baffle rectangular with the screw thread plane or the acute angle. When the buttress thread was flowed through to the material, the material sawtooth breach department of circulating met baffle material stream and receives strong disturbance, and the material falls into many tiny material streams, and these material flow and join again behind the baffle, through join the separation many times, make the material mixing misce bene, and the plastify quality can improve. Even section spiral shell pitch is less than the compression section.
Description
Technical field
The utility model belongs to technical field of chemical, relates to a kind of PUR extruder device.
Background technology
PUR extruder device comprises feeding device, barrel, screw rod, head, mouth mould.The utility model relates to a kind of PUR extruder screw more specifically.In PUR production process, the plastic phase of the screw thread raw material on the screw rod of PUR extruder carries out shear extrusion, thus makes PUR raw material hybrid reaction even, and final production goes out qualified PUR product.The screw flight of PUR extruder, comprises feed zone, compression section, homogenizing zone screw thread.The effect of feeding section is that the material that hopper supplies is sent to compression section, material generally keeps solid state in moving process, material is in proal process, accept the heating of barrel, shearing that screw rod brings and compression make material melts, because the viscosity of PUR is higher, existing screw flight often occur material melts not exclusively, be uniformly mixed inequality, mixing effect undesirable, easily cause problems such as stirring dead angle, finally cause the problem that product quality declines.
Utility model content
The purpose of this utility model is for above-mentioned shortcoming, for making PUR even in feed zone, compression section mixing of materials, provides a kind of sawtooth pattern baffle plate screw device.
A kind of PUR extruder, comprise screw rod, described screw rod comprises from left to right: feed zone, compression section, homogenizing zone;
Feed zone stack shell is provided with baffle plate, and height of baffle plate is less than the radial depth of flight sawtooth;
In compression section, the pitch of screw rod is less than feed zone pitch, and screw flight is zigzag, and the indentation, there screw thread that sawtooth is corresponding is provided with baffle plate;
Homogenizing zone has at least 2 flights in the axial direction, and this section of pitch is less than compression section pitch.
Described feed zone screw flight is zigzag.
Described feed zone stack shell height of baffle plate is 0.6-0.8 times of the radial depth of flight sawtooth.
Described feed zone stack shell height of baffle plate is 0.7 times of the radial depth of flight sawtooth.
Described feed zone baffle plate is 2-8.
The zigzag intervals of described compression section is identical, and the center line of sawtooth breach is consistent with sawtooth overhead gage center line.
The screw thread of described compression section and the angle of baffle plate is at a right angle or acute angle.
Described homogenizing zone screw rod has at least 4 flights in the axial direction, and this section of pitch is less than compression section pitch.
The lead of screw (L) of described every section of screw flight is steady state value, feed zone lead of screw (L) is 1.4-1.8 times of the diameter (D) of screw rod, compression section lead of screw (L) is 1.2-1.4 times of the diameter (D) of screw rod, and even section lead of screw (L) is 1.0-1.2 times of the diameter (D) of screw rod.
The technical solution of the utility model is achieved in that a kind of screw flight of PUR extruder, comprise feed zone, compression section, homogenizing zone screw thread, the barrel of the utility model feed zone arranges baffle plate, the angle of baffle plate is consistent with the anglec of rotation of screw flight, and this section of screw flight is zigzag.The screw thread of compression section is zigzag, and the screw thread of jag arranges angle difference, baffle plate that length is different.
The beneficial effects of the utility model are:
Material is sent to compression section by the effect of feed zone, there are baffle plate at least two baffle plates in this section of barrel stack shell, screw flight is zigzag in relevant position, and height of baffle plate is less than the radial depth of flight sawtooth, this place's baffle plate increase, to the friction of material and shear action, makes different material mix.In compression section, the outer heat of barrel and screw rod, barrel is to the mixing of material, under the effect of the interior frictional heat that shear action produces, material starts melting, but because the viscosity of PUR is higher, material melts is incomplete, when fused materials is by compression section sawtooth breach, screw thread sawtooth produces certain resistance and shearing force to stream, promote melting, after running into baffle plate, material flow is subject to strong disturbance, change direction and the VELOCITY DISTRIBUTION of material flow in screw channel, material flow is divided into many tiny streams, these streams converge again after baffle plate, through repeatedly converging separation, realize mixing to material, homogenizing, material plasticizing quality is improved.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model PUR extruder device screw rod.
As shown in Figure 1, a kind of PUR extruder device screw rod, comprises screw shaft (1), barrel (2), barrel (3) baffle plate, feed zone flight (4), feed zone sawtooth (5), compression section flight (6), compression section sawtooth (7), compression section baffle plate (8), homogenizing zone flight (9).
Fig. 2 is the utility model PUR extruder device compression section screw sections schematic diagram.
As shown in Figure 2, a kind of PUR extruder device compression section screw rod, comprises compression section sawtooth (7), compression section baffle plate (8).
Detailed description of the invention
Embodiment 1
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, 2, a kind of PUR extruder device screw rod, comprises screw shaft (1), barrel (2), feed zone flight (4), compressional zone flight (6), homogenization zone flight (9) composition.Feed zone lead of screw (L) is 1.6 times of the diameter (D) of screw rod, and compression section lead of screw (L) is 1.4 times of the diameter (D) of screw rod, and even section lead of screw (L) is 1.2 times of the diameter (D) of screw rod.Wherein feed zone barrel is provided with 2 rectangle baffle plates, the angle of baffle plate is consistent with the anglec of rotation of screw flight, baffle length is 15mm, barrier width is 25mm, pitch 70mm, screw channel is 40mm deeply, feed zone flight is zigzag serration depth is 35mm, feeding section sawtooth number is 10, compression section pitch 60mm, screw channel is 40mm deeply, flight jag is square, baffle plate is provided with below sawtooth indentation, there, the center line of sawtooth breach is consistent with baffle center line, baffle plate becomes 30 ° with flight, height of baffle plate is identical with serration depth, compression section sawtooth number is 15, serration depth is 35mm.Even section pitch 50mm, screw channel is 40mm deeply, flight 4.
Embodiment 2
As shown in Figure 1, 2, a kind of PUR extruder device screw rod, comprises screw shaft (1), barrel (2), feed zone flight (4), compressional zone flight (6), homogenization zone flight (9) composition.Feed zone lead of screw (L) is 1.5 times of the diameter (D) of screw rod, and compression section lead of screw (L) is 1.3 times of the diameter (D) of screw rod, and even section lead of screw (L) is 1.0 times of the diameter (D) of screw rod.Wherein feed zone barrel is provided with 5 rectangle baffle plates, the angle of baffle plate is consistent with the anglec of rotation of screw flight, baffle length is 15mm, height of baffle plate is 20mm, pitch 60mm, screw channel is 40mm deeply, feed zone flight is zigzag serration depth is 35mm, feeding section sawtooth number is 20, compression section pitch 50mm, screw channel is 40mm deeply, baffle plate is provided with below flight sawtooth indentation, there, the center line of sawtooth breach is consistent with baffle center line, baffle plate becomes 60 ° with flight, and height of baffle plate is identical with serration depth, compression section sawtooth number is 15, serration depth is 35mm.Even section pitch 40mm, screw channel is 40mm deeply, flight 6.
Embodiment 3
As shown in Figure 1, 2, a kind of PUR extruder device screw rod, comprises screw shaft (1), barrel (2), feed zone flight (4), compressional zone flight (6), homogenization zone flight (9) composition.Feed zone lead of screw (L) is 1.6 times of the diameter (D) of screw rod, and compression section lead of screw (L) is 1.4 times of the diameter (D) of screw rod, and even section lead of screw (L) is 1.2 times of the diameter (D) of screw rod.Wherein feed zone barrel is provided with 8 rectangle baffle plates, the angle of baffle plate is consistent with the anglec of rotation of screw flight, baffle length is 15mm, height of baffle plate is 32mm, pitch 60mm, screw channel is 50mm deeply, feed zone flight is zigzag serration depth is 40mm, feeding section sawtooth number is 20, compression section pitch 50mm, screw channel is 50mm deeply, baffle plate is provided with below flight sawtooth indentation, there, the center line of sawtooth breach is consistent with baffle center line, baffle plate and flight at a right angle, and height of baffle plate is identical with serration depth, compression section sawtooth number is 15, serration depth is 30mm.Even section pitch 40mm, screw channel is 50mm deeply, flight 8.
Claims (9)
1. a PUR extruder, comprises screw rod, and described screw rod comprises from left to right: feed zone, compression section, homogenizing zone;
Feed zone stack shell is provided with baffle plate, and height of baffle plate is less than the radial depth of flight sawtooth;
In compression section, the pitch of screw rod is less than feed zone pitch, and screw flight is zigzag, and the indentation, there screw thread that sawtooth is corresponding is provided with baffle plate;
Homogenizing zone has at least 2 flights in the axial direction, and this section of pitch is less than compression section pitch.
2. PUR extruder according to claim 1, is characterized in that, described feed zone screw flight is zigzag.
3. PUR extruder according to claim 1, is characterized in that, described feed zone stack shell height of baffle plate is 0.6-0.8 times of the radial depth of flight sawtooth.
4. PUR extruder according to claim 1, is characterized in that, described feed zone stack shell height of baffle plate is 0.7 times of the radial depth of flight sawtooth.
5. PUR extruder according to claim 1, is characterized in that, described feed zone baffle plate is 2-8.
6. PUR extruder according to claim 1, is characterized in that, the zigzag intervals of described compression section is identical, and the center line of sawtooth breach is consistent with sawtooth overhead gage center line.
7. PUR extruder according to claim 1, is characterized in that, the screw thread of described compression section and the angle of baffle plate is at a right angle or acute angle.
8. PUR extruder according to claim 1, is characterized in that, described homogenizing zone screw rod has at least 4 flights in the axial direction, and this section of pitch is less than compression section pitch.
9. PUR extruder according to claim 1, it is characterized in that, the lead of screw (L) of described every section of screw flight is steady state value, feed zone lead of screw (L) is 1.4-1.8 times of the diameter (D) of screw rod, compression section lead of screw (L) is 1.2-1.4 times of the diameter (D) of screw rod, and even section lead of screw (L) is 1.0-1.2 times of the diameter (D) of screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596128.9U CN204914516U (en) | 2015-08-10 | 2015-08-10 | Hot melt adhesive extruder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596128.9U CN204914516U (en) | 2015-08-10 | 2015-08-10 | Hot melt adhesive extruder device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204914516U true CN204914516U (en) | 2015-12-30 |
Family
ID=54963689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520596128.9U Expired - Fee Related CN204914516U (en) | 2015-08-10 | 2015-08-10 | Hot melt adhesive extruder device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204914516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863746A (en) * | 2017-02-23 | 2017-06-20 | 太原理工大学 | A kind of screw rod and material cylinder structure of Strong shear extruder |
| CN109666874A (en) * | 2018-12-28 | 2019-04-23 | 广州阿旺斯复合材料技术有限公司 | A kind of high-strength screw rod |
| CN111633947A (en) * | 2019-03-01 | 2020-09-08 | 住友橡胶工业株式会社 | Rubber extruder and rubber extrusion method |
-
2015
- 2015-08-10 CN CN201520596128.9U patent/CN204914516U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863746A (en) * | 2017-02-23 | 2017-06-20 | 太原理工大学 | A kind of screw rod and material cylinder structure of Strong shear extruder |
| CN106863746B (en) * | 2017-02-23 | 2019-06-11 | 太原理工大学 | A kind of screw rod and material cylinder structure of Strong shear extruder |
| CN109666874A (en) * | 2018-12-28 | 2019-04-23 | 广州阿旺斯复合材料技术有限公司 | A kind of high-strength screw rod |
| CN109666874B (en) * | 2018-12-28 | 2020-06-09 | 广州阿旺斯复合材料技术有限公司 | High-strength screw |
| CN111633947A (en) * | 2019-03-01 | 2020-09-08 | 住友橡胶工业株式会社 | Rubber extruder and rubber extrusion method |
| CN111633947B (en) * | 2019-03-01 | 2023-11-10 | 住友橡胶工业株式会社 | Rubber extruder and rubber extrusion method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204914516U (en) | Hot melt adhesive extruder device | |
| CN102604206A (en) | Superfine talcum powder-polypropylene filled master batch, preparation method and equipment thereof | |
| CN202318878U (en) | Screw rod assembly of double-screw extruder | |
| CN103857503A (en) | Apparatus for processing plastic material | |
| CN101875233A (en) | Straight conical three-screw extruder | |
| CN101875232A (en) | Conical three-screw rod extruder arranged like triangle | |
| CN201901731U (en) | Spinning screw | |
| CN204172318U (en) | A kind of polyolefin extrusion screw rod | |
| CN202607875U (en) | Device for producing superfine talcum powder polypropylene filling masterbatches | |
| RU176749U1 (en) | Extruder for the processing of building and polymer materials | |
| CN205871133U (en) | Screw extruder with multiple spiral | |
| CN201633185U (en) | Linear cone-shaped three-screw extruder | |
| TWI496675B (en) | Glass fiber reinforced thermoplastic synthetic resin composites for the production of compressed products | |
| JP2012007014A (en) | Composite pellet for extrusion molding, and pretreatment method of the composite pellet for extrusion molding | |
| CN103240861A (en) | Parallel double-screw extruder unit | |
| CN204505769U (en) | A kind of plastic extruder | |
| CN204505776U (en) | A kind of extruder | |
| CN201471715U (en) | Strong shearing screw rod | |
| CN204451144U (en) | A kind of extruding machine of plastic molding press | |
| CN211165246U (en) | High-shear high-mixing extruder screw | |
| CN103921366B (en) | A kind of production technology of FEP colored particle | |
| CN201841655U (en) | Triangularly arranged tapered three-screw extruder | |
| CN204604822U (en) | A kind of screw in injection molding machine of improvement | |
| CN205853328U (en) | A kind of extruder screw for lazy flow plastic processing | |
| CN203305498U (en) | Parallel double-screw extrusion unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20190810 |