CN217169681U - Screw assembly of double-screw extruder - Google Patents
Screw assembly of double-screw extruder Download PDFInfo
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- CN217169681U CN217169681U CN202220122230.5U CN202220122230U CN217169681U CN 217169681 U CN217169681 U CN 217169681U CN 202220122230 U CN202220122230 U CN 202220122230U CN 217169681 U CN217169681 U CN 217169681U
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Abstract
The utility model relates to a double screw extruder technical field specifically is a double screw extruder's screw rod subassembly, extrude the cover including initiative screw thread, the internally mounted that the cover was extruded to initiative screw thread has initiative transmission shaft, and the surface of initiative transmission shaft has seted up the holding chamber, the internally mounted in holding chamber has the block shell fragment, and the block shell fragment is close to one side that the cover was extruded to initiative screw thread and installs the anti-moving back fixture block, the surface that the cover was extruded to initiative screw thread has seted up the anti-moving back card hole, and the anti-moving back inner wall both sides in card hole have seted up spacing spout, the internally mounted of spacing spout has spacing slider, the internally mounted that the anti-moving back card hole has the cover of extruding and dismantles the ejector pad. The screw assembly of the double-screw extruder extrudes the sleeve and the driving transmission shaft through the driving thread by the anti-retreating clamping block and the anti-retreating clamping hole, so that the assembly and disassembly operation between the driving thread extrusion sleeve and the driving transmission shaft become simple and convenient, and the damaged driving thread extrusion sleeve is convenient to overhaul and replace.
Description
Technical Field
The utility model relates to a double screw extruder technical field specifically is a double screw extruder's screw rod subassembly.
Background
The double-screw extruder is developed on the basis of a single-screw extruder, has the characteristics of good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and the like, and is widely applied to the molding processing of extruded products.
The existing screw rod assemblies are of an integrated fixed structure, when the screw rod assemblies are damaged due to abrasion, the whole screw rod assemblies need to be disassembled for maintenance or replacement, time and labor are wasted, the maintenance and replacement costs of the screw rod assemblies are increased, and the screw rod assemblies of the double-screw extruder are provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double screw extruder's screw assembly to it is integral type fixed knot to propose current screw assembly among the above-mentioned background art to solve and constructs, need dismantle whole screw assembly when leading to screw assembly wearing and tearing to damage and keep in repair or change, not only wastes time and energy, has increased screw assembly's maintenance replacement cost's problem especially.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a screw rod assembly of double screw extruder, extrudes the cover including initiative screw thread, the internally mounted that the cover was extruded to initiative screw thread has initiative transmission shaft, and the surface of initiative transmission shaft has seted up the holding chamber, the internally mounted in holding chamber has the block shell fragment, and the block shell fragment is close to one side that the cover was extruded to initiative screw thread and installs the anti-moving back fixture block, the surface that the cover was extruded to initiative screw thread has seted up the anti-moving back card hole, and the inner wall both sides in anti-moving back card hole have seted up spacing spout, the internally mounted of spacing spout has spacing slider, the internally mounted in anti-moving back card hole has the cover of extruding to dismantle the ejector pad.
Preferably, the anti-withdrawal clamping block is stretched in the accommodating cavity, and the anti-withdrawal clamping block is elastically connected with the accommodating cavity through the clamping elastic sheet.
Preferably, extrude the cover and dismantle ejector pad and spacing slider integral type fixed connection, and extrude the cover and dismantle the ejector pad and realize moving in the inside in anti-sticking hole through spacing spout and spacing slider to the overall dimension that the ejector pad was dismantled to the cover that extrudes is less than the internal dimensional of anti-sticking hole.
Preferably, the part of the anti-withdrawing fixture block penetrates through the inner part of the anti-withdrawing hole, and the driving transmission shaft is clamped with the driving thread extrusion sleeve through the anti-withdrawing fixture block and the anti-withdrawing hole.
Preferably, the inner wall of the driving thread extrusion sleeve is provided with a limiting installation groove, the limiting installation groove is provided with a plurality of parts, and a limiting installation block is arranged in the limiting installation groove.
Preferably, the driving transmission shaft is fixedly connected with the limiting installation block in an integrated mode, the limiting installation block is uniformly distributed along the outer surface of the driving transmission shaft, and the driving thread extrusion sleeve is clamped with the driving transmission shaft through the limiting installation groove and the limiting installation block.
Preferably, a water injection cavity is formed in the driving transmission shaft, a transmission gear is installed on the right side of the driving transmission shaft, a universal rotary water pipe joint is installed on the right side of the transmission gear, a water delivery pipe is connected to the right side of the universal rotary water pipe joint, a driven transmission rod is installed at the rear end of the driving transmission shaft, a driven thread extrusion sleeve is installed on the outer side of the driven transmission rod, a driven gear is installed on the right side of the driven thread extrusion sleeve, the water delivery pipe is movably connected with the driving transmission shaft through the universal rotary water pipe joint, and the water delivery pipe is communicated with the water injection cavity through the universal rotary water pipe joint.
Compared with the prior art, the utility model provides a screw rod assembly of double screw extruder possesses following beneficial effect: the screw assembly of the double-screw extruder extrudes the sleeve and the driving transmission shaft through the driving thread by the anti-retreating clamping block and the anti-retreating clamping hole, so that the assembly and disassembly operation between the driving thread extrusion sleeve and the driving transmission shaft become simple and convenient, and the damaged driving thread extrusion sleeve is convenient to overhaul and replace.
1. The utility model installs the driving screw extrusion sleeve and the driving transmission shaft together through the anti-returning fixture block and the anti-returning fixture hole, so that the installation and disassembly operation between the driving screw extrusion sleeve and the driving transmission shaft become simple and convenient, and the damaged driving screw extrusion sleeve is convenient to overhaul and replace;
2. the utility model fixes and limits the driving thread extrusion sleeve and the driving transmission shaft through a plurality of limiting mounting grooves and limiting mounting blocks, so that the stress of the driving thread extrusion sleeve is more uniform, and the driving transmission shaft can better drive the driving thread extrusion sleeve to rotate to extrude;
3. the utility model discloses an injection hot water or cold water into according to the user demand in to the water injection chamber of initiative transmission shaft of universal rotatory water pipe joint and raceway, extrude the cover heating cooling for the initiative screw thread, and then the better extrudes the material.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional structure of the present invention;
fig. 3 is a schematic view of the connection structure of the driving thread extrusion sleeve and the driving transmission shaft of the present invention;
FIG. 4 is a schematic view of a partial enlarged structure at A in FIG. 3 according to the present invention;
fig. 5 is a schematic view of the external structure of the active transmission shaft of the present invention.
In the figure: 1. driving a thread extrusion sleeve; 2. disassembling the push block from the extrusion sleeve; 3. a drive transmission shaft; 4. a transmission gear; 5. a universal rotary water pipe joint; 6. a water delivery pipe; 7. a driven gear; 8. a driven transmission rod; 9. driven thread extrusion sleeves; 10. a limiting mounting groove; 11. a limiting mounting block; 12. a water injection cavity; 13. a limiting chute; 14. a retreat prevention clamping block; 15. clamping the elastic sheet; 16. an accommodating cavity; 17. anti-back-blocking holes; 18. and a limiting sliding block.
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.
As shown in fig. 1, 3, 4 and 5, a screw assembly of a twin-screw extruder includes: the driving screw extrusion sleeve 1 is characterized in that a driving transmission shaft 3 is installed inside the driving screw extrusion sleeve 1, an accommodating cavity 16 is formed in the outer surface of the driving transmission shaft 3, a clamping elastic sheet 15 is installed inside the accommodating cavity 16, and an anti-withdrawal clamping block 14 is installed on one side, close to the driving screw extrusion sleeve 1, of the clamping elastic sheet 15; the anti-withdrawal clamping block 14 is stretched in the accommodating cavity 16, and the anti-withdrawal clamping block 14 is elastically connected with the accommodating cavity 16 through a clamping elastic sheet 15; the outer surface of the driving thread extrusion sleeve 1 is provided with an anti-back-blocking hole 17; the part of the anti-withdrawal fixture block 14 penetrates through the inside of the anti-withdrawal hole 17, the driving transmission shaft 3 is clamped with the driving threaded extrusion sleeve 1 through the anti-withdrawal fixture block 14 and the anti-withdrawal hole 17, the two sides of the inner wall of the anti-withdrawal hole 17 are provided with limiting sliding grooves 13, the limiting sliding blocks 18 are arranged inside the limiting sliding grooves 13, and the extrusion sleeve dismounting push block 2 is arranged inside the anti-withdrawal hole 17; the extrusion sleeve dismounting push block 2 is fixedly connected with the limiting slide block 18 in an integrated manner, the extrusion sleeve dismounting push block 2 moves inside the anti-backing-off clamping hole 17 through the limiting slide groove 13 and the limiting slide block 18, and the shape and the size of the extrusion sleeve dismounting push block 2 are smaller than those of the inside of the anti-backing-off clamping hole 17; the driving thread extrusion sleeve 1 and the driving transmission shaft 3 are installed together through the anti-retreating clamping block 14 and the anti-retreating clamping hole 17, so that the installation and disassembly operation between the driving thread extrusion sleeve 1 and the driving transmission shaft 3 becomes simple and convenient, and the damaged driving thread extrusion sleeve 1 is convenient to overhaul and replace.
As shown in fig. 1 and 2, a screw assembly of a twin-screw extruder comprises a limiting installation groove 10, the inner wall of a driving screw extrusion sleeve 1 is provided with the limiting installation groove 10, a plurality of limiting installation grooves 10 are arranged, and a limiting installation block 11 is arranged in each limiting installation groove 10; the driving transmission shaft 3 is fixedly connected with the limiting installation block 11 in an integrated manner, the limiting installation block 11 is uniformly distributed along the outer surface of the driving transmission shaft 3, and the driving thread extrusion sleeve 1 is clamped with the driving transmission shaft 3 through the limiting installation groove 10 and the limiting installation block 11; the driving thread extrusion sleeve 1 and the driving transmission shaft 3 are fixedly limited through the plurality of limiting installation grooves 10 and the limiting installation blocks 11, so that the driving thread extrusion sleeve 1 is stressed more uniformly, and the driving transmission shaft 3 drives the driving thread extrusion sleeve 1 to rotate better to perform extrusion work; a water injection cavity 12 is formed in the driving transmission shaft 3, a transmission gear 4 is installed on the right side of the driving transmission shaft 3, a universal rotary water pipe joint 5 is installed on the right side of the transmission gear 4, a water delivery pipe 6 is connected to the right side of the universal rotary water pipe joint 5, a driven transmission rod 8 is installed at the rear end of the driving transmission shaft 3, a driven thread extrusion sleeve 9 is installed on the outer side of the driven transmission rod 8, a driven gear 7 is installed on the right side of the driven thread extrusion sleeve 9, the water delivery pipe 6 is movably connected with the driving transmission shaft 3 through the universal rotary water pipe joint 5, and the water delivery pipe 6 is communicated with the water injection cavity 12 through the universal rotary water pipe joint 5; the water injection cavity 12 in the driving transmission shaft 3 is filled with hot water or cold water according to the use requirements through the universal rotary water pipe joint 5 and the water delivery pipe 6, the driving thread extrusion sleeve 1 is heated and cooled, and then the material is extruded better.
The working principle is as follows: when the screw component of the double-screw extruder is used, firstly, the extrusion sleeve disassembly push block 2 is pressed, the extrusion sleeve disassembly push block 2 is enabled to move in the anti-back-blocking hole 17 through the limiting sliding groove 13 and the limiting sliding block 18, then the anti-back-blocking block 14 is pushed out of the anti-back-blocking hole 17, the anti-back-blocking block 14 is contracted into the accommodating cavity 16, then the active thread extrusion sleeve 1 is disassembled from the active transmission shaft 3, secondly, when the active thread extrusion sleeve 1 is installed, the limiting installation block 11 outside the active transmission shaft 3 is inserted into the corresponding limiting installation groove 10, secondly, the clamping elastic sheet 15 inside the accommodating cavity 16 pushes the anti-back-blocking block 14 to extend out of the accommodating cavity 16 through self elasticity, the installation of the active thread extrusion sleeve 1 and the active transmission shaft 3 can be completed by being inserted into the anti-back-blocking hole 17, then hot water or cold water can be injected into the water injection cavity 12 through the water pump, the universal rotary water pipe joint 5 and the water pipe 6, the driven transmission rod 8 is injected with water in the same way to heat or cool the driven thread extrusion sleeve 9.
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 (7)
1. Screw assembly of a twin-screw extruder, comprising a driving screw extrusion sleeve (1), characterized in that: the driving screw thread extrusion sleeve is characterized in that a driving transmission shaft (3) is arranged inside the driving screw thread extrusion sleeve (1), a holding cavity (16) is formed in the outer surface of the driving transmission shaft (3), a clamping elastic sheet (15) is arranged inside the holding cavity (16), one side, close to the driving screw thread extrusion sleeve (1), of the clamping elastic sheet (15) is provided with a retaining block (14), the outer surface of the driving screw thread extrusion sleeve (1) is provided with a retaining hole (17), limiting sliding grooves (13) are formed in two sides of the inner wall of the retaining hole (17), limiting sliding blocks (18) are arranged inside the limiting sliding grooves (13), and the pushing block (2) is detached from the extrusion sleeve by the aid of the inner mounting of the retaining hole (17).
2. The screw assembly of the twin-screw extruder according to claim 1, wherein the anti-receding block (14) is stretched inside the accommodating cavity (16), and the anti-receding block (14) is elastically connected with the accommodating cavity (16) through a clamping elastic sheet (15).
3. The screw assembly of the double-screw extruder is characterized in that the extrusion sleeve dismounting pushing block (2) is fixedly connected with the limiting slide block (18) in an integrated mode, the extrusion sleeve dismounting pushing block (2) moves inside the anti-back-blocking hole (17) through the limiting slide groove (13) and the limiting slide block (18), and the shape and the size of the extrusion sleeve dismounting pushing block (2) are smaller than those inside the anti-back-blocking hole (17).
4. The screw assembly of the twin-screw extruder according to claim 1, wherein the anti-back block (14) is partially inserted into the anti-back hole (17), and the driving transmission shaft (3) is engaged with the driving screw extrusion sleeve (1) through the anti-back block (14) and the anti-back hole (17).
5. The screw assembly of the double-screw extruder according to claim 1, wherein the inner wall of the driving screw thread extrusion sleeve (1) is provided with a limit installation groove (10), a plurality of limit installation grooves (10) are arranged, and a limit installation block (11) is arranged in the limit installation groove (10).
6. The screw assembly of the double-screw extruder according to claim 5, wherein the driving transmission shaft (3) is fixedly connected with the limit mounting block (11) in an integrated manner, the limit mounting block (11) is uniformly distributed along the outer surface of the driving transmission shaft (3), and the driving screw extrusion sleeve (1) is clamped with the driving transmission shaft (3) through the limit mounting groove (10) and the limit mounting block (11).
7. The screw assembly of a twin-screw extruder as claimed in claim 1, a water injection cavity (12) is arranged inside the driving transmission shaft (3), a transmission gear (4) is arranged on the right side of the driving transmission shaft (3), and the right side of the transmission gear (4) is provided with a universal rotary water pipe joint (5), the right side of the universal rotary water pipe joint (5) is connected with a water pipe (6), a driven transmission rod (8) is arranged at the rear end of the driving transmission shaft (3), and the outer side of the driven transmission rod (8) is provided with a driven thread extrusion sleeve (9), a driven gear (7) is arranged on the right side of the driven thread extrusion sleeve (9), the water delivery pipe (6) is movably connected with the driving transmission shaft (3) through a universal rotary water pipe joint (5), the water delivery pipe (6) is communicated with the water injection cavity (12) through a universal rotary water pipe joint (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220122230.5U CN217169681U (en) | 2022-01-18 | 2022-01-18 | Screw assembly of double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220122230.5U CN217169681U (en) | 2022-01-18 | 2022-01-18 | Screw assembly of double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217169681U true CN217169681U (en) | 2022-08-12 |
Family
ID=82735401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220122230.5U Active CN217169681U (en) | 2022-01-18 | 2022-01-18 | Screw assembly of double-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217169681U (en) |
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2022
- 2022-01-18 CN CN202220122230.5U patent/CN217169681U/en active Active
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