CN202441594U - High-viscosity melt conveying pump - Google Patents
High-viscosity melt conveying pump Download PDFInfo
- Publication number
- CN202441594U CN202441594U CN2011205619768U CN201120561976U CN202441594U CN 202441594 U CN202441594 U CN 202441594U CN 2011205619768 U CN2011205619768 U CN 2011205619768U CN 201120561976 U CN201120561976 U CN 201120561976U CN 202441594 U CN202441594 U CN 202441594U
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- pump
- gear
- screw
- viscosity melt
- rotatingshaft
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Abstract
The utility model provides a high-viscosity melt conveying pump which is especially suitable for transporting high-viscosity melts such as ester exchange polycarbonate, nylon and polyester during continuous production. The high-viscosity melt conveying pump comprises a gear pump part, a screw pump part and a motor, wherein a drive gear and a driven gear are arranged in a shell of the gear pump part, and are meshed on the axial direction of a rotating shaft, a screw is arranged in a shell of the screw pump part and is fixedly sleeved on the rotating shaft, the drive gear is fixedly sleeved on one end of the rotating shaft, the rotating shaft is connected with a motor, and the motor drives the screw and the drive gear to rotate through the rotating shaft. The high-viscosity melt conveying pump can eliminate leakage and return of materials in the single gear pump or screw pump, and is suitable for conveying viscous materials continuously, stably, accurately and quantitatively under the condition that the front and back pressure difference is larger or low molecular volatile matters are included in materials.
Description
Technical field
The utility model relates to a kind of transfer pump, and more particularly, the utility model relates to a kind of transfer pump of high-viscosity melt, is specially adapted to produce in continization (such as ester-interchange method polycarbonate (PC), nylon, polyester etc.) conveying of medium-high viscosity melt.
Background technique
In the body fusing method continization production processes such as polycarbonate (PC), nylon, polyester, the melt material of thickness need carry out continous-stable, accurately carry quantitatively under different state, but also will make the air of material and outside isolated, avoids material oxidized.
Gear pump is that the formed swept volume that is meshing with each other between gear changes the rotary pump of carrying liquid or making it supercharging.Form two enclosed spaces by two gears, the pump housing and front and rear covers, when gear rotated, the volume in the space of the side that is out of gear was big from little change, formed vacuum, and liquid is sucked, and the volume in the space of gear engagement side is from diminishing greatly, went and liquid clamp-oned in the pipeline.Suction chamber and discharge side separate by two gear meshing lines.The pressure of the exhaust port of gear pump depends on the size that pumps place's resistance fully.
It is 200920114829.9 that State Intellectual Property Office discloses an application number in 2009.12.9; Name is called " rubber melt gear pump ", and it discloses a kind of rubber melt gear pump, and the gear shaft of rubber melt gear pump tightens and cooperates axle sleeve [1]; Bearing shell on the axle sleeve [1] and the pump housing is rotatably assorted; Have on the axle sleeve rotation surface and the same sense of rotation of gear shaft, by outside gear pump, screwing out the spiral chute of both ends open [8] in the gear pump; The utility model rubber melt gear pump is preposition on Rubber Extruder; Pulsating pressure fluctuation in the time of clearing up the Rubber Extruder extruded rubber avoids extruder to damage in advance, and rubber product output, quality that expressing technique is produced improve.
The gear pump of above-mentioned patent is not suitable for the mass transport in the continization production processes such as polycarbonate (PC), nylon, polyester; At present generally in continization production processes such as polycarbonate (PC), nylon, polyester employed melt Conveying pump be single gear pump form; Pressure reduction is big (as from just being pressed onto negative pressure before and after the transfer pump; Or by negative pressure to malleation); When perhaps containing the low molecular weight volatile material in the material, transfer pump can not continous-stable, accurately carry quantitatively, thereby influences the conveying balance of whole flow process.
The model utility content
The utility model aims to provide a kind of high-viscosity melt transfer pump, is specially adapted to the transfer pump of (such as polycarbonate (PC), nylon, polyester etc.) high-viscosity melt material in continization is produced.This pump can pressure reduction be bigger in front and back; Or contain in the material under the state of low molecular weight volatile material; With the ropy material continous-stable, accurately carry quantitatively; And do not need complicated seal form, and produce sealing effect, can avoid under negative pressure state air to get into and make the material oxidation by material self pressure.
To achieve these goals, the concrete technological scheme of the utility model is following:
A kind of high-viscosity melt transfer pump comprises housing, rotatingshaft, material runner, material feeding mouth and discharge port, it is characterized in that: described transfer pump comprises gear pump part, screw pump part and motor; Be provided with driving gear and driven gear in the housing of gear pump part, and driving gear and driven gear mesh on the axial direction of rotatingshaft; Be provided with screw rod in the housing of screw pump part, and the screw rod fixed cover is on rotatingshaft, the fixedly sleeved end of driving gear at rotatingshaft, rotatingshaft connects motor, and motor drives screw rod and driving gear rotation simultaneously through rotatingshaft.
The described material runner of the utility model is opened at driving gear and driven gear engagement place lower case inwall place, and partly is communicated with screw pump.
The described material feeding mouth of the utility model is opened at driving gear and upper body place, driven gear engagement place.
The described discharge port of the utility model is opened on the housing of screw rod away from an end place of driving gear.
The described screw pump of the utility model partly is single screw-rod structure.
The described screw rod of the utility model is single head or multiple thread.
Dark equidistance structures such as the screw channel of the described screw rod of the utility model is, do not wait dark equidistance structure, etc. equidistance structure or do not wait deeply not equidistance structure not deeply, or the structure of above combination in any.
The useful technique effect that the utility model brings:
1, the utility model is compared with present melt Conveying pump, because be the assemblying body of gear pump and screw pump, after melt material gets into the melt Conveying pump; Be introduced into gear parts, utilize being meshing with each other of gear, make melt material be forced compression; Enter into screw portion then, along with the rotation of screw rod is extruded into outlet, being equivalent to has two stage compression; Therefore; Such structure can remedy the interior returning charge phenomenon of leaking of material of single gear pump or screw pump appearance, and pressure reduction is bigger before and after being suitable for, or contains in the material under the state of low molecular weight volatile material; With the ropy material continous-stable, accurately carry quantitatively, the continization production process that is particularly suitable for body melt polymerizations such as ester-interchange method polycarbonate (PC), nylon, polyester carries sticky material to use;
2, because the positively engaging of gear; Melt material at screw portion is in barotropic state all the time; And owing to discharge port is on the housing of screw rod away from an end of driving gear, and screw portion is the material parcel, has formed one section material selfsealing; Therefore air just can not penetrate in the material from Melt Pump rotatingshaft sealing part, stopped common Melt Pump leaks oxygen from axle head easily under negative pressure state disadvantage with since pump front and back pressure different cause scurry the material phenomenon.
3, screw pump partly is single screw rod, because screw form can be single head or bull, spiral groove depth can have different combinations, can form the pressure head different to material.Therefore can select screw-rod structure according to actual demand such as material viscosity sizes, material can steadily be carried, stop from axle head leak oxygen with since before and after the pump pressure different cause scurry the material phenomenon.
Description of drawings
Accompanying drawing 1 is the cross-sectional view of overlooking of the utility model.
Accompanying drawing 2 is the utility model A-A cross section structure schematic representation.
Reference character: 1 is that housing, 2 is the screw pump part for gear pump part, 12 for coupling, 11 for screw rod, 10 for driven gear, 9 for driving gear, 8 for motor, 7 for discharge port, 6 for material feeding mouth, 5 for material runner, 4 for rotatingshaft, 3.
Embodiment
Embodiment 1
A kind of high-viscosity melt transfer pump comprises housing 1, rotatingshaft 2, material runner 3, material feeding mouth 4 and discharge port 5, it is characterized in that: described transfer pump comprises gear pump part 11, screw pump part 12 and motor 6; Be provided with driving gear 7 and driven gear 8 in the housing 1 of gear pump part 11, and driving gear 7 meshes on the axial direction of rotatingshaft 2 with driven gear 8; Be provided with screw rod 9 in the housing 1 of screw pump part 12, and screw rod 9 fixed covers are on rotatingshaft 2, driving gear 7 fixedly sleeved ends at rotatingshaft 2, rotatingshaft 2 connects motors 6, and motor 6 drives screw rod 9 simultaneously through rotatingshaft 2 and rotates with driving gear 7.
The described material runner 3 of the utility model is opened at driving gear 7 and driven gear 8 engagement place lower case 1 inwall place, and is communicated with screw pump part 12.
The described material feeding mouth 4 of the utility model is opened at driving gear 7 and driven gear 8 engagement place upper body 1 place.
The described discharge port of the utility model is opened on the housing 1 of screw rod 9 away from an end place of driving gear 7.
The described screw pump part 12 of the utility model is single screw-rod structure.
The described screw rod 9 of the utility model is single head or multiple thread.
Dark equidistance structures such as the screw channel of the described screw rod 9 of the utility model is, do not wait dark equidistance structure, etc. equidistance structure or do not wait deeply not equidistance structure not deeply, or the structure of above combination in any.
The contrast accompanying drawing further specifies model utility melt Conveying pump.Material is entered in the gear pump part 11 of transfer pump by material feeding mouth 4; Rotatingshaft 2 connects motor 6 through coupling 10; Along with driving rotatingshaft 2, motor 6 rotates; Two pitch wheels in the pump (driving gear 7 and driven gear 8) enter into screw pump part 12 after being squeezed to material in the material runner 3, extrude from discharge port 5 at last.
The advantage of this pump is: material gets into to be forced behind the gear and is fed forward; And the screw channel structure of screw rod can design according to the size of material viscosity; Make it further boost pressure or keep material to go out the pressure of gear segment; The throttling that helps material is carried, and has guaranteed the regime flow of pump conveying material.And, stop the disadvantage that air gets into from axle head because material has certain pressure, and it can reach material selfsealings effect to external world.
Claims (7)
1. high-viscosity melt transfer pump; Comprise housing (1), rotatingshaft (2), material runner (3), material feeding mouth (4) and discharge port (5), it is characterized in that: described transfer pump comprises gear pump part (11), screw pump part (12) and motor (6); Be provided with driving gear (7) and driven gear (8) in the housing (1) of gear pump part (11), and driving gear (7) and driven gear (8) mesh on the axial direction of rotatingshaft (2); Be provided with screw rod (9) in the housing (1) of screw pump part (12); And screw rod (9) fixed cover is on rotatingshaft (2); The fixedly sleeved end of driving gear (7) at rotatingshaft (2); Rotatingshaft (2) connects motor (6), and motor (6) drives screw rod (9) simultaneously through rotatingshaft (2) and driving gear (7) rotates.
2. a kind of high-viscosity melt transfer pump according to claim 1 is characterized in that: described material runner (3) is opened at driving gear (7) and driven gear (8) engagement place lower case (1) inwall place, and is communicated with screw pump part (12).
3. a kind of high-viscosity melt transfer pump according to claim 1 is characterized in that: described material feeding mouth (4) is opened in driving gear (7) and driven gear (8) engagement place upper body (1) and is located.
4. a kind of high-viscosity melt transfer pump according to claim 1 is characterized in that: described discharge port (5) is opened on the housing (1) of screw rod (9) away from an end place of driving gear (7).
5. according to each described a kind of high-viscosity melt transfer pump of claim 1-4, it is characterized in that: described screw pump part (12) is single screw-rod structure.
6. according to each described a kind of high-viscosity melt transfer pump of claim 1-4, it is characterized in that: described screw rod (9) is single head or multiple thread.
7. according to each described a kind of high-viscosity melt transfer pump of claim 1-4; It is characterized in that: the screw channel of described screw rod (9) dark equidistance structure such as is, do not wait dark equidistance structure, etc. equidistance structure or do not wait deeply not equidistance structure not deeply, or the structure of above combination in any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205619768U CN202441594U (en) | 2011-12-29 | 2011-12-29 | High-viscosity melt conveying pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205619768U CN202441594U (en) | 2011-12-29 | 2011-12-29 | High-viscosity melt conveying pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441594U true CN202441594U (en) | 2012-09-19 |
Family
ID=46823046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205619768U Expired - Lifetime CN202441594U (en) | 2011-12-29 | 2011-12-29 | High-viscosity melt conveying pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441594U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464075A (en) * | 2013-09-10 | 2013-12-25 | 张家港保税区万盛机械工业有限公司 | Polyester experiment device |
| CN104454515A (en) * | 2014-11-20 | 2015-03-25 | 大连华工创新科技股份有限公司 | Combined pump of gear pump and screw pump |
| CN104454516A (en) * | 2014-11-20 | 2015-03-25 | 大连华工创新科技股份有限公司 | Combined adhesive supplying device using gear pump and screw pump |
| CN104514712A (en) * | 2014-12-26 | 2015-04-15 | 适新科技（苏州）有限公司 | Gear pump for pumping esters |
| CN104791241A (en) * | 2014-01-17 | 2015-07-22 | 北京华腾佳和科技有限公司 | Melt pump for plastic product processing |
| CN105240270A (en) * | 2015-10-10 | 2016-01-13 | 程洪亮 | Liquid-steam motion pump |
| CN113250953A (en) * | 2021-04-22 | 2021-08-13 | 江苏众合硅基新材料有限公司 | Melt pump, preparation system of ultrahigh molecular weight polysiloxane and preparation method of system |
-
2011
- 2011-12-29 CN CN2011205619768U patent/CN202441594U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464075A (en) * | 2013-09-10 | 2013-12-25 | 张家港保税区万盛机械工业有限公司 | Polyester experiment device |
| CN104791241A (en) * | 2014-01-17 | 2015-07-22 | 北京华腾佳和科技有限公司 | Melt pump for plastic product processing |
| CN109989914A (en) * | 2014-01-17 | 2019-07-09 | 北京华腾佳和科技有限公司 | Melt Pump is used in a kind of processing of plastic products |
| CN104454515A (en) * | 2014-11-20 | 2015-03-25 | 大连华工创新科技股份有限公司 | Combined pump of gear pump and screw pump |
| CN104454516A (en) * | 2014-11-20 | 2015-03-25 | 大连华工创新科技股份有限公司 | Combined adhesive supplying device using gear pump and screw pump |
| CN104514712A (en) * | 2014-12-26 | 2015-04-15 | 适新科技（苏州）有限公司 | Gear pump for pumping esters |
| CN105240270A (en) * | 2015-10-10 | 2016-01-13 | 程洪亮 | Liquid-steam motion pump |
| CN113250953A (en) * | 2021-04-22 | 2021-08-13 | 江苏众合硅基新材料有限公司 | Melt pump, preparation system of ultrahigh molecular weight polysiloxane and preparation method of system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Zhong LAN Guo shaping new Mstar Technology Ltd Assignor: China Bluestar Chengrand Research Institute of Chemical Industry Co., Ltd. Contract record no.: 2018510000037 Denomination of utility model: High-viscosity melt conveying pump Granted publication date: 20120919 License type: Common License Record date: 20180807 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |
|
| CX01 | Expiry of patent term |