CN213919506U - Rubber processing screw rod - Google Patents
Rubber processing screw rod Download PDFInfo
- Publication number
- CN213919506U CN213919506U CN202022649696.4U CN202022649696U CN213919506U CN 213919506 U CN213919506 U CN 213919506U CN 202022649696 U CN202022649696 U CN 202022649696U CN 213919506 U CN213919506 U CN 213919506U
- Authority
- CN
- China
- Prior art keywords
- screw
- screw thread
- edge
- rod body
- 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.)
- Active
Links
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a rubber processing screw rod, includes the body of rod and sets up the spiral shell arris on the body of rod, its characterized in that: the screw rib is divided into a screw rib section, a screw rib section and a screw rib section, the screw rib of the screw rib section is a first screw rib vertical to the axial direction of the rod body, the rear side surface of the first screw rib is an inclined surface, the width of the root part of the first screw rib is larger than the width of the top part of the first screw rib, the screw rib of the screw rib section is a variable diameter screw rib of which the outer diameter is gradually reduced along the outer diameter of the screw rib in the rod body direction, the angle between the variable diameter screw rib and the axial direction of the rod body is gradually reduced, the screw rib section is a constant diameter screw rib of which the outer diameter is kept unchanged, and the included angle between the constant diameter screw rib and the axial direction of the rod body is the same as that between the front section of the variable diameter screw rib and the axial direction of the rod body. The utility model has the advantages that: the material is extruded smoothly, and the extrusion effect is good.
Description
Technical Field
The utility model relates to a screw rod preparation technical field especially indicates a rubber processing screw rod.
Background
A prior chinese patent application with application number CN201880030032.2 entitled "rubber extruder and screw thereof" discloses a rubber extruder for extruding unvulcanized rubber while stirring the unvulcanized rubber, wherein the rubber extruder comprises: a cylinder having an inlet for introducing the unvulcanized rubber and an outlet for discharging the unvulcanized rubber; a screw disposed within the barrel and used for extruding the unvulcanized rubber; and an air discharge hole for sucking air in the cylinder, the screw having: a bank that locally restricts an extrusion amount of the unvulcanized rubber; a 1 st screw section from the inlet to the bank section; and a 2 nd screw part from the bank part to the discharge port, an effective flight length of the 1 st screw part being 50% or more of a total effective flight length of the screws. However, the screw flight of the extruder is less varied, and the rubber extrusion effect is not ideal, so that the structure of the device needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem that to above-mentioned prior art current situation and provide a rubber and extrude smoothness, extrude effectual rubber processing screw rod.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: this rubber processing screw rod includes the body of rod and sets up the spiral shell arris on the body of rod, its characterized in that: the screw rib is divided into a screw rib section, a screw rib section and a screw rib section, the screw rib of the screw rib section is a first screw rib vertical to the axial direction of the rod body, the rear side surface of the first screw rib is an inclined surface, the width of the root part of the first screw rib is larger than the width of the top part of the first screw rib, the screw rib of the screw rib section is a variable diameter screw rib of which the outer diameter is gradually reduced along the outer diameter of the screw rib in the rod body direction, the angle between the variable diameter screw rib and the axial direction of the rod body is gradually reduced, the screw rib section is a constant diameter screw rib of which the outer diameter is kept unchanged, and the included angle between the constant diameter screw rib and the axial direction of the rod body is the same.
As an improvement, the pitch of the first screw ridge is gradually reduced, and the minimum pitch of the first screw ridge is larger than the pitch of any pitch of the variable diameter screw ridges.
Further improved, the outer end face of the first spiral edge is an inclined face, and an included angle between the inclined face and the horizontal plane is 5 degrees.
Further improved, the included angle between the rear side surface of the first screw ridge and the axial direction of the rod body is 75 degrees.
The further improvement, the reducing spiral shell arris includes second spiral shell arris, third spiral shell arris, fourth spiral shell arris and fifth spiral shell arris, second spiral shell arris, third spiral shell arris, fourth spiral shell arris and fifth spiral shell arris are head and tail smooth connection in proper order, the diameter of second spiral shell arris is less than the diameter of first spiral shell arris, second spiral shell arris is mutually perpendicular with the body of rod axial, and the diameter of second spiral shell arris, third spiral shell arris, fourth spiral shell arris and fifth spiral shell arris reduces in proper order. The regular change of the pressure applied to the material is realized, and the processing effect is good.
In a further improvement, the diameter of the fifth spiral edge is the same as that of the constant diameter spiral edge, and the distance between the fifth spiral edge and the fourth spiral edge is the same as that of the constant diameter spiral edge. And smooth transition of materials is realized.
In a further improvement, the width of the fifth screw edge is the same as that of the constant diameter screw edge. And smooth transition of materials is realized.
In a further improvement, a spiral groove is arranged at the joint of the first spiral edge and the second spiral edge, and the spiral direction of the spiral groove is the same as that of the spiral edge. The spiral kinetic energy of the material is increased, the flowing speed of the material is accelerated, and the material can enter the middle of the rod body more quickly.
The rod body is divided into a first rod body section, a second rod body section, a third rod body section and a fourth rod body section, wherein the first rod body section, the second rod body section and the fourth rod body section are cylinders, the third rod body section is a cone, the diameter of the first rod body section is larger than that of the second rod body section and that of the fourth rod body section, the diameter of the fourth rod body section is larger than that of the second rod body section, the small-diameter end of the third rod body section is connected with the second rod body section, and the large-diameter section of the third rod body section is connected.
The improved structure is characterized in that the end parts of the four sections of the rod body are provided with arc-shaped tops, and the middle parts of the arc-shaped tops are provided with positioning concave holes.
Compared with the prior art, the utility model has the advantages of: the first screw ridge can provide larger thrust for rubber, so that the rubber can quickly enter the middle section of the rod body to be heated and melted, and the rubber is prevented from being accumulated at a feeding position; the rear side surface of the first screw ridge is an inclined surface, the root of the first screw ridge is thicker, and the service life of the first screw ridge is prolonged; the variable diameter screw edges change the pressure applied on the rubber step by step to realize the sufficient and uniform melting of the rubber; the change on the rod diameter of the rod body can be preferably increased, and the material conveying fluency can be further improved.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is an enlarged view of a portion I in fig. 3.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 4, the rubber processing screw of this embodiment includes a rod body 1 and a flight arranged on the rod body 1, the flight is divided into a flight section a, a flight section B and a flight section C, the flight of the flight section a is a first flight 11 perpendicular to the axial direction of the rod body 1, the rear side of the first flight is an inclined plane 111, the width of the root of the first flight 11 is greater than the width of the top of the first flight 11, the flight of the flight section B is a variable diameter flight whose outer diameter gradually decreases along the direction of the rod body 1, the angle between the variable diameter flight and the axial direction of the rod body 1 gradually decreases, the flight section C is a constant diameter flight 16 whose outer diameter remains unchanged, and the included angle between the constant diameter flight 16 and the axial direction of the rod body 1 is the same as the included angle between the front section of the variable diameter flight and the axial direction of the rod body 1. The pitch of the first ridges 11 is gradually reduced, and the minimum pitch of the first ridges 11 is greater than the pitch of any pitch of the variable diameter ridges. The outer end face of the first spiral edge 11 is an inclined face, and an included angle a between the inclined face and the horizontal plane is 5 degrees. The included angle b between the rear side surface of the first screw ridge and the axial direction of the rod body is 75 degrees. The reducing screw rib comprises a second screw rib 12, a third screw rib 13, a fourth screw rib 14 and a fifth screw rib 15, the second screw rib 12, the third screw rib 13, the fourth screw rib 14 and the fifth screw rib 15 are sequentially connected end to end in a smooth mode, the diameter of the second screw rib 12 is smaller than that of the first screw rib 11, the second screw rib 12 is perpendicular to the axial direction of the rod body 1, and the diameters of the second screw rib 12, the third screw rib 13, the fourth screw rib 14 and the fifth screw rib 15 are sequentially reduced. The diameter of the fifth screw ridge 15 is the same as that of the constant diameter screw ridge 16, and the distance between the fifth screw ridge 15 and the fourth screw ridge 14 is the same as that between the constant diameter screw ridges 16. The width of the fifth screw edge 15 is the same as that of the constant diameter screw edge 16. A spiral groove 17 is arranged at the joint of the first spiral edge 11 and the second spiral edge 12, and the spiral direction of the spiral groove 17 is the same as the spiral direction of the spiral edge.
The rod body 1 is divided into a rod body section E1, a rod body second section E2, a rod body third section E3 and a rod body fourth section E4, the rod body first section E1, the rod body second section E2 and the rod body fourth section E4 are cylinders, the rod body third section E3 is a cone, the diameter of the rod body first section E1 is larger than that of the rod body second section E2 and the rod body fourth section E4, the diameter of the rod body fourth section E4 is larger than that of the rod body second section E2, the small-diameter end of the rod body third section E3 is connected with the rod body second section E2, and the large-diameter section of the rod body third section E3 is connected with the rod body fourth section E4. The end part of the rod body four-section E4 is provided with an arc top part, and the middle part of the arc top part is provided with a positioning concave hole.
Claims (10)
1. The utility model provides a rubber processing screw rod, includes the body of rod (1) and sets up the spiral shell arris on the body of rod (1), its characterized in that: the screw thread is divided into one section of screw thread (A), two sections of screw thread (B) and three sections of screw thread (C), the screw thread of one section of screw thread (A) is the first screw thread (11) that is mutually perpendicular with body of rod (1) axial, the trailing flank of first screw thread is inclined plane (111), and first screw thread (11) root width is greater than first screw thread (11) top width, the screw thread of two sections of screw thread (B) is the reducing screw thread that reduces gradually along body of rod (1) direction screw thread external diameter, the reducing screw thread reduces gradually with body of rod (1) axial angle, screw thread three sections (C) are invariable constant diameter screw thread (16) of screw thread external diameter, and constant diameter screw thread (16) are the same with body of rod (1) axial contained angle and reducing screw thread anterior section and body of rod (1) axial contained angle.
2. A rubber processing screw according to claim 1, wherein: the pitch of the first screw edges (11) is gradually reduced, and the minimum pitch of the first screw edges (11) is larger than the pitch of any pitch of the variable diameter screw edges.
3. A rubber processing screw according to claim 2, wherein: the outer end face of the first spiral edge (11) is an inclined face, and an included angle (a) between the inclined face and the horizontal plane is 5 degrees.
4. A rubber processing screw according to claim 3, wherein: the included angle (b) between the rear side surface of the first screw ridge and the axial direction of the rod body is 75 degrees.
5. A rubber processing screw according to claim 1, wherein: the reducing screw thread edge comprises a second screw thread edge (12), a third screw thread edge (13), a fourth screw thread edge (14) and a fifth screw thread edge (15), the second screw thread edge (12), the third screw thread edge (13), the fourth screw thread edge (14) and the fifth screw thread edge (15) are sequentially connected end to end in a smooth mode, the diameter of the second screw thread edge (12) is smaller than that of the first screw thread edge (11), the second screw thread edge (12) is perpendicular to the axial direction of the rod body (1), and the diameters of the second screw thread edge (12), the third screw thread edge (13), the fourth screw thread edge (14) and the fifth screw thread edge (15) are sequentially reduced.
6. A rubber processing screw according to claim 5, wherein: the diameter of the fifth screw edge (15) is the same as that of the constant-diameter screw edge (16), and the distance between the fifth screw edge (15) and the fourth screw edge (14) is the same as that of the constant-diameter screw edge (16).
7. A rubber processing screw according to claim 6, wherein: the width of the fifth screw edge (15) is the same as that of the constant diameter screw edge (16).
8. A rubber processing screw according to claim 5, wherein: a spiral groove (17) is arranged at the joint of the first spiral edge (11) and the second spiral edge (12), and the spiral direction of the spiral groove (17) is the same as the spiral direction of the spiral edge.
9. A rubber processing screw according to any one of claims 1 to 8, wherein: the novel telescopic rod is characterized in that the rod body (1) is divided into a first rod body section (E1), a second rod body section (E2), a third rod body section (E3) and a fourth rod body section (E4), the first rod body section (E1), the second rod body section (E2) and the fourth rod body section (E4) are cylinders, the third rod body section (E3) is a cone, the diameter of the first rod body section (E1) is larger than that of the second rod body section (E2) and the fourth rod body section (E4), the diameter of the fourth rod body section (E4) is larger than that of the second rod body section (E2), the small-diameter end of the third rod body section (E3) is connected with the second rod body section (E2), and the large-diameter section of the third rod body section (E3) is connected with the fourth rod body section (E4).
10. A rubber processing screw according to claim 9, wherein: the end part of the rod body four sections (E4) is provided with an arc top, and the middle part of the arc top is provided with a positioning concave hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022649696.4U CN213919506U (en) | 2020-11-16 | 2020-11-16 | Rubber processing screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022649696.4U CN213919506U (en) | 2020-11-16 | 2020-11-16 | Rubber processing screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213919506U true CN213919506U (en) | 2021-08-10 |
Family
ID=77169530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022649696.4U Active CN213919506U (en) | 2020-11-16 | 2020-11-16 | Rubber processing screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213919506U (en) |
-
2020
- 2020-11-16 CN CN202022649696.4U patent/CN213919506U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213919506U (en) | Rubber processing screw rod | |
| CN105058743B (en) | The whole self-cleaning self-cleaning double screw extruder in the same direction of head number gradual change and its processing method | |
| CN114368119A (en) | Single-screw extrusion injection device | |
| CN102794898A (en) | Different-diameter screw cold feed vented extruder | |
| CN1775506A (en) | Planetary screw chaos trigger extruding method and apparatus | |
| CN221112806U (en) | Plastic baking-free exhaust screw | |
| CN219360265U (en) | Conical extrusion molding screw | |
| CN215151698U (en) | Combined structure of conical double-screw machine barrel | |
| CN219360266U (en) | Cone double screw capable of preventing glue from being spitting | |
| CN214027136U (en) | Extrusion screw for extruder | |
| CN111152440B (en) | Counter-rotating extrusion device, extruder and material manufacturing method | |
| CN214294291U (en) | Combined structure of conical double-screw machine barrel | |
| CN213919509U (en) | Extrusion screw | |
| CN210733220U (en) | Asymmetric equidirectional multi-screw extrusion device and extruder thereof | |
| CN207630467U (en) | Screw rod voluntarily feeds feeding mechanism | |
| CN215151701U (en) | Combined device of conical double-screw machine barrel | |
| WO2021017103A1 (en) | Asymmetric co-rotating multi-screw extrusion device and extruder and processing method thereof | |
| CN210233939U (en) | Cable extrusion screw barrel screw rod | |
| CN217169683U (en) | Extruder exhaust easy dismouting screw rod | |
| CN214872455U (en) | Extrusion screw | |
| CN216182650U (en) | Special conical double-screw for PP corrugated pipe outer wall extruding machine | |
| CN217622102U (en) | Reducing screw | |
| CN218660384U (en) | Extrusion screw for plastic extrusion | |
| CN214027043U (en) | Combined device of conical double-screw machine barrel | |
| CN212194146U (en) | Extrusion screw and extrusion structure suitable for XETFE material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A rubber processing screw Effective date of registration: 20230613 Granted publication date: 20210810 Pledgee: Postal Savings Bank of China Limited Zhoushan branch Pledgor: Zhejiang Jingzhu Machinery Co.,Ltd. Registration number: Y2023330001195 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |