CN114179334A - Full-meshing co-rotating double-screw extruder - Google Patents
Full-meshing co-rotating double-screw extruder Download PDFInfo
- Publication number
- CN114179334A CN114179334A CN202010959940.9A CN202010959940A CN114179334A CN 114179334 A CN114179334 A CN 114179334A CN 202010959940 A CN202010959940 A CN 202010959940A CN 114179334 A CN114179334 A CN 114179334A
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- Prior art keywords
- extrusion
- gear
- screw
- frame body
- bevel gear
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- 238000001125 extrusion Methods 0.000 claims abstract description 85
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 19
- 235000000621 Bidens tripartita Nutrition 0.000 claims abstract description 16
- 240000004082 Bidens tripartita Species 0.000 claims abstract description 16
- 208000006637 fused teeth Diseases 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 13
- 244000309464 bull Species 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
Abstract
The invention discloses a full-meshing co-rotating double-screw extruder, which comprises an extrusion frame body, a rotating shaft, a double-tooth rotating ring, an extrusion screw and an installation base, and is characterized in that: the extrusion framework fixed connection sets up in the installation base upper end, the extrusion screw rod is provided with two, just the extrusion screw rod sets up the inside at the extrusion framework, the right side of extrusion screw rod is passed through the bearing and is connected with the extrusion screw rod rotation, the inside left side of extrusion framework is provided with the installation supporting shoe, the left side of extrusion screw rod is passed through the bearing and is connected with the installation supporting shoe rotation, two the screw thread of extrusion screw rod matches each other. According to the invention, the double-tooth rotating ring is arranged on the outer side of the screw gear, the central gear is arranged in the middle position of the two screw gears, the central gear can play a role of starting auxiliary support for the screw gears, and gear transmission is carried out through internal meshing, so that the stress is more uniform, and the position deviation of the screw is prevented.
Description
Technical Field
The invention relates to the technical field of extrusion molding, in particular to a full-meshing co-rotating double-screw extruder.
Background
At present, about 33 percent of plastic processing is finished on an extruder, the extruder can be divided into a single-screw extruder and a double-screw extruder, the double-screw extruder is mainly in an 8-shaped simple body, materials in the double-screw extruder are conveyed forwards in a mode of incompletely filling a screw groove, the double-screw extruder has the effect of forcing the materials to be pushed forwards, the double-screw extruder also has better dispersion and mixing effects on the materials at the meshing position of the two screws, meanwhile, the double-screw extruder is divided into a meshing type co-rotating double-screw extruder and a meshing type counter-rotating double-screw extruder, the meshing type co-rotating double-screw extruder has opposite speeds of a screw thread and the screw groove at the meshing position, the relative speed of the materials is very high, the materials bear very high shearing, the mixing is facilitated, the accumulated materials in the screw groove can be scraped, and the extruder has better mixing and self-cleaning effects; the intermeshing counter-rotating twin-screw extruder can pull a small amount of material into the radial gap between the two screws and subject the material to a grinding and rolling action between the ridges and grooves, which is similar to the rolling action of the material on a calender, and is known as the "calendering effect".
The prior full-meshing co-rotating twin-screw extruder has the following defects: most of screws of the existing full-meshing co-rotating double-screw extruder are only driven by a single-side gear, the weight of the screws cannot be effectively dispersed and supported during driving, the single-side gear is unevenly driven and stressed, and the screws can deviate after being used for a long time, so that the extrusion effect is influenced; in addition, the existing full-meshing co-rotating double-screw extruder mostly transmits through a belt, the belt transmission efficiency is low, the service life is short, and the belt has the characteristic of elastic sliding and cannot guarantee a fixed and unchangeable transmission ratio.
Disclosure of Invention
The invention aims to provide a full-meshing co-rotating twin-screw extruder to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a full-meshing equidirectional double-screw extruder comprises an extrusion frame body, a rotating shaft, two double-tooth rotating rings, two extrusion screws and an installation base, wherein the extrusion frame body is fixedly connected to the upper end of the installation base, the two extrusion screws are arranged in the extrusion frame body, the right sides of the extrusion screws are rotatably connected with the extrusion screws through bearings, the left sides of the interior of the extrusion frame body are provided with installation supporting blocks, the left sides of the extrusion screws are rotatably connected with the installation supporting blocks through bearings, the threads of the two extrusion screws are matched with each other, the right ends of the extrusion screws are fixedly connected with a protective ring, the right ends of the extrusion screws are fixedly connected with screw gears, a central rotating shaft is rotatably connected to the middle position of the right sides of the extrusion frame body, and a mounting plate is rotatably connected to the left side of the central rotating shaft, the mounting plate is fixedly connected with the extrusion frame body, two mounting holes are formed in the mounting plate, the extrusion screw penetrates through the mounting plate through the mounting holes, a central gear is fixedly connected to the central rotating shaft and is meshed with the screw gears, the inner ring gear of the double-tooth rotating ring is meshed with the two screw gears, a speed reducing motor is fixedly arranged at the lower end of the mounting base, a driving bevel gear is fixedly connected to the output end of the speed reducing motor and is vertically arranged in the mounting base, the rotating shaft is rotatably connected with the inside of the mounting base through a bearing, first driven bevel gears are fixedly connected to the upper end and the lower end of the rotating shaft, the driving bevel gear is meshed with the first driven bevel gears at the lower end, and a transmission rotating rod is rotatably connected to the lower end of the right side of the extrusion frame body, the right side fixed connection of transmission bull stick is provided with the driven bevel gear of second, the left side fixed connection that rotates the bull stick is provided with drive gear, the driven bevel gear of second is connected with the meshing of the first driven bevel gear of upside, drive gear and the outer lane gear meshing of bidentate circle are connected, the right side upper end fixed connection of extrusion framework is provided with the feeder hopper, the left side lower extreme fixed connection of extrusion framework is provided with the ejection of compact frame.
Preferably, the left end of the extrusion screw is sleeved with a limiting support ring, and the extrusion screw is rotatably connected with the limiting support ring.
Preferably, a feeding cover is arranged on the feeding hopper.
Preferably, the right side of the extrusion frame body is internally provided with a mounting groove, a protection plate is arranged in the mounting groove through a clamping block, and the extrusion screw penetrates through the protection plate.
Preferably, the diameter of the transmission gear is smaller than that of the double-tooth rotating ring.
Preferably, the diameter of the central gear is smaller than that of the screw gear.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the double-tooth rotating ring is arranged on the outer side of the screw gear, the central gear is arranged in the middle position of the two screw gears, the central gear can play a role of starting an auxiliary support for the screw gears, and the gear transmission is carried out through internal meshing, so that the stress is more uniform, and the position deviation of the screw is prevented;
2. the invention also comprises a driving bevel gear, a rotating shaft and a first driven bevel gear, wherein the reducing motor can drive the driving bevel gear to rotate, the driving bevel gear can drive a second driven bevel gear to rotate through the first driven bevel gear, and the driving bevel gear is driven through the gear.
Drawings
FIG. 1 is a schematic view of the overall structure of a fully-meshed co-rotating twin-screw extruder according to the present invention;
FIG. 2 is a schematic structural view of a double-tooth rotating ring and a transmission gear of the fully-meshed co-rotating twin-screw extruder according to the invention;
FIG. 3 is a schematic structural view of a mounting plate of a fully intermeshing co-rotating twin screw extruder according to the present invention;
fig. 4 is an enlarged view of a portion a of fig. 1.
In the figure: 1. extruding the frame body; 2. discharging the material frame; 3. a limiting support ring; 4. mounting a supporting block; 5. extruding the screw; 6. rotating the double teeth; 7. a feed hopper; 8. a feeding cover; 9. installing a base; 10. a reduction motor; 11. a drive bevel gear; 12. a first driven bevel gear; 13. a second driven bevel gear; 14. a transmission rotating rod; 15. a transmission gear; 16. a protection plate; 17. a guard ring; 18. a sun gear; 19. mounting a plate; 20. a central rotating shaft; 21. a rotating shaft; 22. a screw gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a full mesh syntropy twin-screw extruder, includes that extrusion frame body 1, rotation axis 21, bidentate circle 6, extrusion screw 5, installation base 9, its characterized in that: the extrusion frame body 1 is fixedly connected and arranged at the upper end of the installation base 9, the number of the extrusion screws 5 is two, the extrusion screws 5 are arranged in the extrusion frame body 1, the right side of the extrusion screws 5 is rotatably connected with the extrusion screws 5 through bearings, the left side in the extrusion frame body 1 is provided with an installation supporting block 4, the left side of the extrusion screws 5 is rotatably connected with the installation supporting block 4 through bearings, the threads of the two extrusion screws 5 are matched with each other, the right end of the extrusion screws 5 is fixedly connected with a protecting ring 17, the right end of the extrusion screws 5 is fixedly connected with a screw gear 22, the middle position of the right side of the extrusion frame body 1 is rotatably connected with a central rotating shaft 20, the left side of the central rotating shaft 20 is rotatably connected with an installation plate 19, and the installation plate 19 is fixedly connected with the extrusion frame body 1, the mounting plate 19 is provided with two mounting holes, the extrusion screw 5 passes through the mounting plate 19 through the mounting holes, the central gear 18 is fixedly connected to the central rotating shaft 20, the central gear 18 is meshed with the screw gear 22, the inner ring gear of the double-tooth rotating ring 6 is meshed with both the two screw gears 22, the lower end of the mounting base 9 is fixedly provided with the speed reducing motor 10, the output end of the speed reducing motor 10 is fixedly connected with the driving bevel gear 11, the rotating shaft 21 is vertically arranged in the mounting base 9, the rotating shaft 21 is rotatably connected with the inside of the mounting base through a bearing, the upper end and the lower end of the rotating shaft 21 are fixedly connected with the first driven bevel gear 12, the driving bevel gear 11 is meshed with the first driven bevel gear 12 at the lower end, the lower end of the right side of the extrusion frame body 1 is rotatably connected with the transmission rotating rod 14, the right side fixed connection of transmission bull stick 14 is provided with second driven bevel gear 13, the left side fixed connection of rotating the bull stick is provided with drive gear 15, second driven bevel gear 13 is connected with the meshing of the first driven bevel gear 12 of upside, drive gear 15 is connected with the outer lane gear meshing of double-tooth circle 6, the right side upper end fixed connection of extrusion framework 1 is provided with feeder hopper 7, the left side lower extreme fixed connection of extrusion framework 1 is provided with ejection of compact frame 2.
The left end cover of extrusion screw 5 is equipped with spacing lock ring 3, extrusion screw 5 rotates with spacing lock ring 3 to be connected, and the spacing lock ring 3 of setting can play the effect of auxiliary stay, be provided with feed cover 8 on the feeder hopper 7, the feed cover 8 of setting can prevent that dust impurity from getting into the screw extruder in, the mounting groove has been seted up to extrusion frame 1's right side is inside, be provided with guard plate 16 through the block in the mounting groove, extrusion screw 5 passes guard plate 16, and the guard plate 16 of setting can prevent that dust impurity from getting into drive gear 15 department, drive gear 15's diameter is less than the diameter of double-tooth circle 6, central gear 18's diameter is less than screw gear 22's diameter, can play laborsaving effect.
The working principle is as follows: in the invention, the double-tooth rotating ring 6 is arranged on the outer side of the screw gear 22, when the extrusion is carried out, materials are injected into the extrusion frame body 1 through the feed hopper 7, the speed reducing motor 10 is started, the speed reducing motor 10 can drive the driving bevel gear 11 to rotate, the driving bevel gear 11 can drive the second driven bevel gear 13 to rotate through the first driven bevel gear 12, so that the transmission gear 15 can be driven to rotate, the transmission gear 15 can drive the double-tooth rotating ring 6 to rotate, the double-tooth rotating ring 6 can drive the screw gear 22 to rotate in the same direction, the central gear 18 can be driven to rotate in the rotation process of the screw gear 22, the stress can be more uniform by the center, the position deviation of the screw can be prevented, the screw can be supported in an auxiliary way, the position deviation of the screw can be prevented, the materials are finally discharged through the discharging frame 2 under the rotary extrusion effect of the screw, and are transmitted through the gear, the transmission efficiency is high, the service life is long, the stable transmission ratio can be kept, and the transmission mechanism has the advantages of simple structure, convenience in use and good use effect.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 full mesh syntropy twin-screw extruder, includes extrusion frame body (1), rotation axis (21), double-tooth circle (6), extrusion screw (5), installation base (9), its characterized in that: the extrusion frame body (1) is fixedly connected and arranged at the upper end of the installation base (9), the number of the extrusion screws (5) is two, the extrusion screws (5) are arranged inside the extrusion frame body (1), the right sides of the extrusion screws (5) are rotatably connected with the extrusion screws (5) through bearings, the left side inside the extrusion frame body (1) is provided with an installation supporting block (4), the left sides of the extrusion screws (5) are rotatably connected with the installation supporting block (4) through bearings, the threads of the two extrusion screws (5) are matched with each other, the right end of the extrusion screws (5) is fixedly connected with a protective ring (17), the right end of the extrusion screws (5) is fixedly connected with a screw gear (22), the right middle position of the extrusion frame body (1) is rotatably connected with a central rotating shaft (20), the left side of the central rotating shaft (20) is rotatably connected with an installation plate (19), the mounting plate (19) is fixedly connected with the extrusion frame body (1), two mounting holes are formed in the mounting plate (19), the extrusion screw (5) penetrates through the mounting plate (19) through the mounting holes, a central gear (18) is fixedly connected to the central rotating shaft (20), the central gear (18) is meshed with the screw gear (22) and is connected with the inner ring gear of the double-tooth rotating ring (6) and the two screw gears (22) in a meshed mode, a speed reducing motor (10) is fixedly arranged at the lower end of the mounting base (9), a driving bevel gear (11) is fixedly connected to the output end of the speed reducing motor (10), the rotating shaft (21) is vertically arranged inside the mounting base (9) and is rotatably connected with the inside of the mounting base through a bearing, and a first driven bevel gear (12) is fixedly connected to the upper end and the lower end of the rotating shaft (21), the utility model discloses a material extruding machine, including extrusion frame body (1), drive bevel gear (11) and the first driven bevel gear (12) meshing connection of lower extreme, the right side lower extreme of extrusion frame body (1) rotates to be connected and is provided with transmission bull stick (14), the right side fixed connection of transmission bull stick (14) is provided with second driven bevel gear (13), the left side fixed connection that rotates the bull stick is provided with drive gear (15), second driven bevel gear (13) and the first driven bevel gear (12) meshing connection of upside, drive gear (15) are connected with the outer lane gear meshing of bidentate bull stick (6), the right side upper end fixed connection of extrusion frame body (1) is provided with feeder hopper (7), the left side lower extreme fixed connection of extrusion frame body (1) is provided with ejection of compact frame (2).
2. A fully intermeshing co-rotating twin screw extruder as claimed in claim 1, wherein: the left end of the extrusion screw (5) is sleeved with a limiting support ring (3), and the extrusion screw (5) is rotatably connected with the limiting support ring (3).
3. A fully intermeshing co-rotating twin screw extruder as claimed in claim 1, wherein: and a feeding cover (8) is arranged on the feeding hopper (7).
4. A fully intermeshing co-rotating twin screw extruder as claimed in claim 1, wherein: the right side of the extrusion frame body (1) is internally provided with a mounting groove, a protection plate (16) is arranged in the mounting groove through clamping, and the extrusion screw (5) penetrates through the protection plate (16).
5. A fully intermeshing co-rotating twin screw extruder as claimed in claim 1, wherein: the diameter of the transmission gear (15) is smaller than that of the double-tooth rotating ring (6).
6. A fully intermeshing co-rotating twin screw extruder as claimed in claim 1, wherein: the diameter of the central gear (18) is smaller than that of the screw gear (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010959940.9A CN114179334A (en) | 2020-09-14 | 2020-09-14 | Full-meshing co-rotating double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010959940.9A CN114179334A (en) | 2020-09-14 | 2020-09-14 | Full-meshing co-rotating double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114179334A true CN114179334A (en) | 2022-03-15 |
Family
ID=80538952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010959940.9A Pending CN114179334A (en) | 2020-09-14 | 2020-09-14 | Full-meshing co-rotating double-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114179334A (en) |
-
2020
- 2020-09-14 CN CN202010959940.9A patent/CN114179334A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220315 |