CN210733223U - Extruder screw - Google Patents
Extruder screw Download PDFInfo
- Publication number
- CN210733223U CN210733223U CN201921485215.1U CN201921485215U CN210733223U CN 210733223 U CN210733223 U CN 210733223U CN 201921485215 U CN201921485215 U CN 201921485215U CN 210733223 U CN210733223 U CN 210733223U
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- screw rod
- screw
- section
- extruder
- middle section
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides an extruder screw rod belongs to screw rod technical field. It has solved the whole root integrative setting of current screw rod, and that has a department after being worn and torn, just leads to whole root screw rod to abolish, leads to very big waste scheduling problem. The utility model discloses a screw rod body comprises the three-section, includes the anterior segment screw rod, middle section screw rod and the back end screw rod that can dismantle the connection each other respectively, links together through first latch mechanism and first locking mechanical system between anterior segment screw rod and the middle section screw rod, and the middle section screw rod links together through second latch mechanism and second locking mechanical system with the back end screw rod. The utility model discloses a can dismantle anterior segment screw rod, middle section screw rod and the back end screw rod of connection each other, when which section goes wrong, just change this one section, and can not lead to whole root to scrap, saved manufacturing cost like this greatly.
Description
Technical Field
The utility model belongs to the technical field of the screw rod, a extruder screw rod is related to.
Background
The screw is a cylinder with a spiral groove cut on the outer surface or a cone with a conical spiral groove cut on the outer surface, and is widely applied to plastic forming equipment, such as plastic profile extruders, injection molding machines and the like. The existing screw is generally integrally formed, the screw is divided into a feeding section, a compression section and a homogenizing section, each section is easily worn, particularly, the homogenizing section of the screw is easily worn, the three sections are worn most seriously and worn most quickly, if the screw is integrally arranged, the whole screw is wasted after one section is worn, and great waste is caused, so that the screw of the extruder is required to be provided with a detachable screw with good wear resistance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems of the prior extruder screw, and provides the extruder screw which has good wear resistance and can be disassembled.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides an extruder screw rod, includes the screw rod body, its characterized in that, the screw rod body constitute by the three-section, include respectively that mutual detachable connects anterior segment screw rod, middle section screw rod and back end screw rod, link together through first clamping mechanism and first locking mechanical system between anterior segment screw rod and the middle section screw rod, the middle section screw rod links together through second clamping mechanism and second locking mechanical system with the back end screw rod.
Preferably, the first clamping mechanism comprises two first bayonets arranged at one end of the front section screw rod and two first convex blocks arranged at one end of the middle section screw rod, the first convex blocks are matched with the first bayonets in shape, the first bayonets are triangular cones, and the corresponding first convex blocks are also triangular cones in shape.
Preferably, the first locking mechanism comprises a first nut and a first screw arranged on the front section screw, the middle section screw is provided with a first screw hole, and the shape of the first screw hole is matched with that of the first nut. First nut can stretch into from the one end of the first screw of middle-section screw rod and stretch out from the other end of first screw and stretch out with the first screw thread connection of anterior segment screw rod.
Preferably, the second clamping mechanism comprises two second bayonets arranged at the other end of the middle section screw (far away from one end of the first lug), one end of the rear section screw is provided with a second lug matched with the second bayonets in shape, the second bayonets are columnar, and the second lugs are also columnar.
Preferably, the second locking mechanism comprises a second nut and a second screw arranged at the end of the middle screw, the rear screw is provided with a second screw hole penetrating through two ends of the rear screw, and one end of the second nut can be in threaded connection with the second screw after penetrating through one end of the second screw hole.
Preferably, the diameter D of the end of the rear section screw, which is far away from the front section screw, is 5cm-15 cm.
Preferably, the length ratio of the front section screw rod, the middle section screw rod and the rear section screw rod is 1: 1: 2.
preferably, the pitch of the front section screw is 1D.
Preferably, the thread depth of the rear section screw is 2 times of the thread depth of the front section screw.
Compared with the prior art, this extruder screw rod includes the anterior segment screw rod, middle section screw rod and the back end screw rod that can dismantle the connection each other, when which section goes wrong, just changes this one section, and can not lead to whole root to scrap, has so saved manufacturing cost greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a front screw of the present invention;
FIG. 3 is a schematic structural view of the middle screw rod of the present invention;
fig. 4 is a schematic structural view of the rear screw of the present invention.
In the figure, 1, a front section screw; 2. a middle section screw; 3. a rear section screw; 4. a first bayonet; 5. a first bump; 6. a first nut; 7. a first screw port; 8. a first screw hole; 9. a second bayonet; 10. a second bump; 11. a second nut; 12. a second screw; 13. and a second screw hole.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1-4, the utility model provides an extruder screw rod, it includes the screw rod body, and the screw rod body comprises the three-section, includes anterior segment screw rod 1, middle section screw rod 2 and back end screw rod 3 that can dismantle the connection each other respectively, links together through first latch mechanism and first locking mechanical system between anterior segment screw rod 1 and the middle section screw rod 2, and middle section screw rod 2 links together through second latch mechanism and second locking mechanical system with back end screw rod 3.
First latch mechanism is including setting up two first bayonet sockets 4 in anterior segment screw rod 1 one end and setting up two first lugs 5 in middle section screw rod 2 one end, first lug 5 and the shape looks adaptation of first bayonet socket 4, and first bayonet socket 4 is the triangle-shaped toper, and the shape of the first lug 5 that corresponds also is the triangle-shaped toper.
First locking mechanical system includes first nut 6 and sets up first screw 7 on anterior segment screw rod 1, middle section screw rod 2 on be provided with first screw 8, the shape looks adaptation of first screw 8 and first nut 6. The first nut 6 can stretch into from the one end of the first screw hole 8 of the middle section screw rod 2 and stretch out from the other end of the first screw hole 8 to be in threaded connection with the first screw port 7 of the front section screw rod 1.
The second clamping mechanism comprises two second bayonets 9 arranged at the other end (far away from one end of the first lug 5) of the middle section screw rod 2, one end of the rear section screw rod 3 is provided with a second lug 10 matched with the second bayonet 9 in shape, the second bayonet 9 is columnar, and the second lug 10 is also columnar.
The second locking mechanism comprises a second nut 11 and a second screw port 12 arranged at the end part of the middle section screw rod 2, a second screw hole 13 penetrating through two ends of the rear section screw rod 3 is arranged on the rear section screw rod 3, and one end of the second nut 11 can be in threaded connection with the second screw port 12 after penetrating through one end of the second screw hole 13. The diameter D of one end of the rear section screw 3 far away from the front section screw 1 is 5cm-15 cm. The length ratio of the front section screw 1, the middle section screw 2 and the rear section screw 3 is 1: 1: 2.
this extruder screw rod includes the anterior segment screw rod 1, the middle section screw rod 2 and the back end screw rod 3 that can dismantle the connection each other, when which section goes wrong, just changes this one section, and can not lead to whole root to scrap, has so saved manufacturing cost greatly.
It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended manner, i.e. in a manner equivalent to "including at least … …", and not in a closed manner, i.e. in a manner not to be interpreted as "including … … only".
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. The utility model provides an extruder screw rod, includes the screw rod body, its characterized in that, the screw rod body constitute by the three-section, include respectively that mutual detachable connects anterior segment screw rod, middle section screw rod and back end screw rod, link together through first clamping mechanism and first locking mechanical system between anterior segment screw rod and the middle section screw rod, the middle section screw rod links together through second clamping mechanism and second locking mechanical system with the back end screw rod.
2. The screw rod of the extruder according to claim 1, wherein the first clamping mechanism comprises two first bayonets disposed at one end of the front screw rod and two first protrusions disposed at one end of the middle screw rod, the first protrusions are adapted to the first bayonets in shape, the first bayonets are triangular-cone-shaped, and the corresponding first protrusions are also triangular-cone-shaped.
3. The screw of extruder according to claim 1, wherein said first locking mechanism comprises a first nut and a first screw opening disposed on the front screw, said middle screw is provided with a first screw hole, and the shape of the first screw hole is adapted to the shape of the first nut.
4. The extruder screw according to claim 1, wherein the second clamping mechanism comprises two second bayonets disposed at the other end of the middle screw, one end of the rear screw is provided with a second projection adapted to the second bayonets, the second bayonets are cylindrical, and the second projection is also cylindrical.
5. The screw rod of extruder according to claim 1, wherein said second locking mechanism comprises a second nut and a second screw hole disposed at the end of the middle screw rod, said back screw rod is provided with a second screw hole penetrating through the two ends of the back screw rod, and one end of the second nut can be connected with said second screw hole by threading through one end of the second screw hole.
6. A screw for an extruder according to claim 1, wherein the diameter dimension D of the end of the rear screw remote from the front screw is 5cm to 15 cm.
7. The extruder screw of claim 1, wherein the length ratio of the front section screw to the middle section screw to the rear section screw is 1: 1: 2.
8. an extruder screw according to claim 1, wherein said rear section screw has a flight depth 2 times greater than that of said front section screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921485215.1U CN210733223U (en) | 2019-09-06 | 2019-09-06 | Extruder screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921485215.1U CN210733223U (en) | 2019-09-06 | 2019-09-06 | Extruder screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210733223U true CN210733223U (en) | 2020-06-12 |
Family
ID=71004738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921485215.1U Active CN210733223U (en) | 2019-09-06 | 2019-09-06 | Extruder screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210733223U (en) |
-
2019
- 2019-09-06 CN CN201921485215.1U patent/CN210733223U/en active Active
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