CN206501411U - High-efficiency multi-function twin-screw extrusion unit - Google Patents
High-efficiency multi-function twin-screw extrusion unit Download PDFInfo
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- CN206501411U CN206501411U CN201720168176.7U CN201720168176U CN206501411U CN 206501411 U CN206501411 U CN 206501411U CN 201720168176 U CN201720168176 U CN 201720168176U CN 206501411 U CN206501411 U CN 206501411U
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
- B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
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- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of high-efficiency multi-function twin-screw extrusion unit, including weight-loss type continuous weighing metering drawing-in device, steelframe platform, corotating twin-screw mixing extruder, double plunger hydraulic screen replacing device, high-temperature fusant pump and hydraulic synchronizing valve；Weight-loss type continuous weighing metering drawing-in device is used for the continuous proportioning of polymer each component, corotating twin-screw mixing extruder is used to carry out mixing modification to all polymers compositions, double plunger hydraulic screen replacing device is used to filter off impurity in polymer, high-temperature fusant pump can implement polymer modification and shaping extrusion step simultaneously, hydraulic synchronizing valve switches melt flow channel when high-efficiency multi-function twin-screw extrusion unit is run and is stopped, in favor of the automatic operating and the extrusion molding effect of guarantee melt of unit.The equipment can complete the blending and modifying of polymer and extrude task to the processing and forming of polymer, so that the problem of overcoming production cost height, inefficiency in traditional two step method process operation production process.
Description
Technical field
The utility model is related to macromolecule polymer material process equipment field, specifically, is a kind of high-efficiency multi-function
Twin-screw extrusion unit.
Background technology
The blending and modifying and extrusion technology of macromolecule polymer material are used as a weight in polymer processing industry
Technology is wanted, the development of polymer processing industry technology is accompanied by and grows up.World's macromolecule polymer material is in cumulative volume
On exceed metal material, high molecular polymer only could turn into by blending and modifying and extrusion molding processing and have use value
Product, the blending and modifying of macromolecule polymer material and extrusion molding processing be the indispensable production ring of high polymer material
Section.
During traditional typical blending and modifying and extrusion molding processing, operation is processed using two step method.It is first
First, all polymers compositions are uniformly mixed in mixing apparatus such as high-speed mixer, double roll mill, double screw extruder
With the modified extruding pelletization of mixing.Polymer Processing performance can give to improve by blending and modifying.Can after polymer blending modification
With meet it is many it is special the need for, formed with brand-new performance novel polymer material.Then, by the particle after blending and modifying
Shape material feeds having heaters, the heat for producing heater by heat transfer outside single screw extrusion machine, the barrel of extruder
The material in barrel is transmitted to, temperature of charge is increased, melting temperature is reached.Screw rod in barrel is rotated, and material is fed forward,
Material is mutually rubbed between barrel, screw rod and material and material, sheared during exercise, substantial amounts of heat is produced, with heat transfer
The material of addition is set constantly to melt under collective effect, the material of melting is continuously and stably transported to the effigurate machine of tool
In head (mouth mold), after head (mouth mold), the material in flow regime takes the shape of head (mouth mold), enters back into cooling fixed
Shape is put, and material is kept i.e. fixed shape after solidifying, material is by continuously extrusion setting, and obtain final article shape.
In traditional two step method process operation production process, due to blending and modifying and extrusion molding processing being operated respectively,
Increase, the inefficiency of the energy, manpower and logistics are caused, production cost can be in any more.
The content of the invention
Goal of the invention：The utility model purpose is to provide a kind of high-efficiency multi-function twin-screw extrusion unit, and the equipment can
Complete the blending and modifying of polymer and task is extruded to the processing and forming of polymer, by two steps of traditionally polymer product material
Method process operation is combined into one-step method process operation, so as to overcome production cost in traditional two step method process operation production process
The problem of height, inefficiency.
To achieve these goals, the utility model employs following technical scheme：A kind of high-efficiency multi-function twin-screw
Extrude unit, including it is weight-loss type continuous weighing metering drawing-in device, steelframe platform, corotating twin-screw mixing extruder, double
Plunger hydraulic net exchanging device, high-temperature fusant pump and hydraulic synchronizing valve；
Weight-loss type continuous weighing metering drawing-in device is arranged on steelframe platform, weight-loss type continuous weighing metering drawing-in device
Including the raw material cabin for depositing processing operation raw material, pneumatic dish valve is installed in the bottom of raw material cabin, the bottom of pneumatic dish valve and
By the II connections of rubber soft-jointing pipe between its top feed mouthful of weigh hopper, weigh hopper, distributor box, reducing motor are arranged on bottom plate
On, bottom plate is arranged on the carrier head of weighing sensor, and weighing sensor is arranged in mounting seat, and feed screw, which is arranged on, to be claimed
The output shaft of the bottom of heavy burder bucket, the tail end of feed screw and distributor box is connected, the input shaft of distributor box and reducing motor it is defeated
Shaft is connected, and the front end of feed screw is connected with blanking box side, between the bottom of blanking box and the top feeding mouth of material-falling hopper
By the I connections of rubber soft-jointing pipe；
Corotating twin-screw mixing extruder includes motor, the high torque gear being arranged on main machine base
With cylinder combination, cylinder combination includes feed cylinder, closure cylinder, gate valve cylinder, exhaust cylinder and the extruded tube being sequentially connected
Body, the top of feed cylinder is provided with spout, and the bottom of spout and material-falling hopper is connected, and the side of gate valve cylinder is provided with side feeding
Mouthful, the top of gate valve cylinder is provided with nature exhaust outlet, and gate valve cylinder is provided with gate valve, and the top of exhaust cylinder is provided with vacuum exhaust
Mouthful, vaccum exhaust outlet connection vacuum exhaust chamber, the rear end of feed cylinder passes through the front end of connected body and high torque gear
Connection, the output shaft of motor is connected by shaft coupling with the input shaft of high torque gear, high torque gear
Two output shafts be connected respectively by spline housing with two screw mandrel tail ends, two screw mandrels installed in cylinder combine
In, electric heater, closure cylinder, gate valve cylinder are separately installed with closure cylinder, gate valve cylinder, exhaust cylinder and extrusion cylinder
Body, exhaust cylinder and extruded tube internal body portion are not provided with cooling water channel, cooling water channel connection chilled water unit；
Double plunger hydraulic screen replacing device includes net-changing device housing, and the front end of the arrival end and extrusion cylinder of net-changing device housing connects
Connect, upper and lower two net-changing device plungers are provided between the port of export and arrival end of net-changing device housing, two net-changing device plungers are from changing
Whole net-changing device housing is run through in the side of wire stitcher housing, and net-changing device plunger at one end passes through draping plunger limiting plate and net-changing device hydraulic pressure
The piston rod connection of oil cylinder, net-changing device electric heater is separately mounted on the top and bottom of net-changing device housing, net-changing device plunger
Screen pack mounting hole is provided with, screen pack mounting hole installs screen pack and filter screen；
High-temperature fusant pump includes the pump housing, and the arrival end of the pump housing is connected by entrance sleeve with the port of export of net-changing device housing, pump
Body electric heater is separately mounted to the top and bottom of the pump housing, and the gear of driving gear shaft and driven gear shaft is intermeshed and pacified
In the pump housing, driving gear shaft is connected by articulated cross shaft formula shaft coupling with motor flange, and motor flange is arranged on gear
In reducing motor output shaft；
Hydraulic synchronizing valve includes shunting valve body, and the port of export of the arrival end and the pump housing that shunt valve body is connected by discharge connection
Connect, melt flow channel II is provided between the port of export and arrival end that shunt valve body, melt flow channel II is provided through on shunting valve body
Plunger, melt flow channel II is divided into entrance end portion and outlet of hose by plunger, and plunger is vertically through whole
Valve body is shunted, plunger top is connected by the cylinder piston rod of plunger limited block and hydraulic jack, and post is driven by hydraulic jack
Beyond the Great Wall, lower slider, is provided with melt flow channel I in the horizontal direction in the middle part of plunger, and melt flow channel is provided with vertically in plunger bottom
III, melt flow channel III upper ends are provided with lateral openings close to the side of melt flow channel II entrance end portions, when plunger slide downward
When, melt flow channel II entrance end portion and outlet of hose are turned on by the melt flow channel I on plunger；When plunger upward sliding
When, melt flow channel II entrance end portion and outlet of hose are blocked by plunger, and melt flow channel III and melt on plunger
Runner II entrance end portion conducting.
Further, the weight-loss type continuous weighing metering drawing-in device at least two, each weight-loss type continuous weighting
Metering feed device is provided with three weighing sensors.
Further, the weighing sensor according in weigh hopper raw-material weight change export analog signalses to
Analog signalses are changed into digital quantity signal by controller, controller, and are required based on predetermined control instruction by the digital quantity
Signal is converted into control signal to frequency converter, and frequency converter drives reducing motor to operate according to control signal.
Further, the chilled water unit includes the cooling water water inlet supervisor being arranged on main machine base and cooling water is returned
Water is responsible for, and two and cooling water channel are respectively mounted in the front lower portion of closure cylinder, gate valve cylinder, exhaust cylinder and extrusion cylinder
The cooling water branch pipe communicated, wherein a cooling water branch pipe is provided with water adjusting valve and magnetic valve, and is responsible for cooling water water inlet
Connection, another cooling water branch pipe is connected with cooling water backwater supervisor.
Further, the net-changing device hydraulic jack is arranged in hydraulic jack mounting seat, and hydraulic jack mounting seat passes through
Mounting seat support bar is arranged on the side of net-changing device housing.
Further, the pump housing arrival end and the port of export of the high-temperature fusant pump are all provided with pressure sensor.
Further, the hydraulic jack is arranged on the over top of shunting valve body by oil cylinder support bar.
Further, the material of the shunting valve body and plunger is nitrated steel.
Further, the flow divider body side surface, which is provided with the outside of heating rod mounting hole, hot pin mounting hole, installs having heaters
Press strip, heater press strip is used to heating rod being fixed in heating rod mounting hole, to the heating of shunting valve body and insulation.
Further, the flow divider body side surface is provided with square iron, and square iron is used for the port of export and extrusion for connecting shunting valve body
The adpting flange of head.
The utility model high-efficiency multi-function twin-screw extrusion unit applies to blending and modifying and the polymerization of high molecular polymer
In the processing and forming one-step method extruding production line of thing, following effect can be reached：
1st, weight-loss type continuous weighing metering drawing-in device can be suitably used for the continuous proportioning of material, and its feature is high metering essence
Degree, feed stabilization, electromechanical integration, modularized design.Accomplish what field control was combined with centralized Control in control mode
System control mode；
2nd, the screw combinations of corotating twin-screw mixing extruder are according to different materials, by thread bush, kneading block and
Other type screw elements constitute different arrangement architectures, to realize the processing technology requirement of corresponding material.The double spiral shells of cocurrent and parallel
The cylinder combination of bar mixing extruder can set up vaccum exhaust outlet and natural exhaust outlet, by the fugitive constituent in fused materials and can contain
Some bubbles are effectively discharged, to ensure the quality of polymer blending modification.Employ the double spiral shells of cocurrent and parallel of gate valve tube structure
Bar mixing extruder can be efficiently completed material conveying and build the operation process such as pressure, mixing, shearing, reaction, polymerization, make production high
The technical process of grade polymer simplifies, and continuous controllable；
3rd, the quality of product can be improved using double plunger hydraulic screen replacing device, it is ensured that the continuity of production, it is effective to improve
Yield and reduce production cost；
4th, high-temperature fusant pump technology is used in extrusion equipment, polymer modification can be implemented simultaneously and shaping is extruded
Step, reaches the target of accurate easy to operate, control, efficient energy-saving and clean manufacturing；
5th, hydraulic synchronizing valve simplifies operating process, beneficial to the Automated condtrol of production line；
6th, stable equipment operation is good, and complete machine running noise can be controlled in less than 80 decibels；
7th, the blending and modifying and polymer of high molecular polymer are applied to using high-efficiency multi-function twin-screw extrusion unit
Processing and forming one-step method extruding production line saves energy consumption more than 50% than traditional two step method extruding production line.
Brief description of the drawings
Fig. 1 is the structural representation of high-efficiency multi-function twin-screw extrusion unit of the present utility model；
Fig. 2 is the structural representation of weight-loss type continuous weighing metering drawing-in device；
Fig. 3 is the front view of corotating twin-screw mixing extruder；
Fig. 4 is the top view of corotating twin-screw mixing extruder；
Fig. 5 is the structural representation that cylinder is combined；
Fig. 6 is the front view of double plunger hydraulic screen replacing device；
Fig. 7 is the side view of double plunger hydraulic screen replacing device；
Fig. 8 is the front view of high-temperature fusant pump；
Fig. 9 is the side view of high-temperature fusant pump；
Figure 10 is the front view of hydraulic synchronizing valve；
Figure 11 is the side view of hydraulic synchronizing valve.
In figure：1- feeding mouths；2- weight-loss type continuous weighing metering drawing-in devices；3- steelframe platforms；4- material-falling hoppers；5- is in the same direction
Parallel double-screw mixing extruder；6- double plunger hydraulic screen replacing devices；7- high-temperature fusant pumps；8- hydraulic synchronizing valves；9- rubber is soft
Adapter I；10- feed screws；11- blanking boxes；12- weigh hoppers；13- raw material cabins；The pneumatic dish valves of 14-；15- rubber soft-jointing pipes
II；16- distributor boxes；17- reducing motors；18- bottom plates；19- weighing sensors；20- mounting seats；21- motor；22- shaft couplings
Device；23- high torque gears；24- spline housings；25- screw mandrels；26- connected bodies；27- cylinders are combined；28- electrical heating
Device；29- side spouts；30- vacuum exhaust chambers；31- cooling water branch pipes；32- water adjusting valves；33- magnetic valves；34- cooling waters enter
Water is responsible for；35- cooling waters backwater is responsible for；36- main machine bases；37- nature exhaust outlets；38- spouts；39- feed cylinders；40-
Close cylinder；41- gate valves；42- gate valve cylinders；43- vaccum exhaust outlets；44- is vented cylinder；45- extrudes cylinder；46- net-changing devices
Hydraulic jack；47- hydraulic jack mounting seats；48- mounting seat support bars；49- net-changing device electric heaters；50- net-changing device housings；
51- screen pack mounting holes；52- net-changing device plungers；53- draping plunger limiting plates；54- driving gear shafts；55- driven gears
Axle；56- articulated cross shaft formula shaft couplings；57- motor flanges；58- toothed gearing electric motors；59- discharge connections；60- pump housings electricity adds
Hot device；61- entrance sleeves；The 62- pump housings；63- pump housing poles；64- high-temperature fusant pump frames；65- square iron；66- shunts valve body；
67- plungers；68- oil cylinder support bars；69- hydraulic jacks；70- plunger limited blocks；71- melt flow channels I；72- melt flow channels II；
73- heater press strips；74- melt flow channels III；75- piston rods；76- cylinder piston rods.
Embodiment：
The utility model is done below in conjunction with the accompanying drawings and further explained.
As shown in figure 1, a kind of high-efficiency multi-function twin-screw extrusion unit of the present utility model, including weight-loss type continuous weighting
Metering feed device 2, steelframe platform 3, corotating twin-screw mixing extruder 5, double plunger hydraulic screen replacing device 6, high temperature melting
Body pump 7 and hydraulic synchronizing valve 8.
As illustrated in fig. 1 and 2, high-efficiency multi-function twin-screw extrusion unit can be set according to the polymers compositions of production operation
At least two weight-loss type continuous weighing metering drawing-in devices 2.Weight-loss type continuous weighing metering drawing-in device 2 is arranged on steelframe platform
On 3.Weight-loss type continuous weighing metering drawing-in device 2 includes the raw material cabin 13 for being used to deposit processing operation raw material, raw material cabin 13
Bottom pneumatic dish valve 14 is installed, pneumatic dish valve 14 can control charging of the raw material in raw material cabin 13 to weigh hopper 12
Journey, by the II15 connections of rubber soft-jointing pipe between the bottom of pneumatic dish valve 14 and its top feed of weigh hopper 12 mouthful.Weigh hopper
12nd, distributor box 16, reducing motor 17 are arranged on bottom plate 18, and bottom plate 18 is arranged on the carrier head of weighing sensor 19, is weighed
Sensor 19 is arranged in mounting seat 20, and each weight-loss type continuous weighing metering drawing-in device 2 is provided with three weighing sensors
19, i.e., using three support of weighing sensor 19 weigh hoppers 12, distributor box 16 and reducing motor 17, to ensure the stabilization of support
Property.Feed screw 10 is arranged on the bottom of weigh hopper 12, and the tail end of feed screw 10 is connected with the output shaft of distributor box 16, point
Input shaft with case 16 is connected with the output shaft of reducing motor 17, and the front end of feed screw 10 is connected with the side of blanking box 11, is fallen
By the I9 connections of rubber soft-jointing pipe between the bottom of magazine 11 and the top feeding mouth 1 of material-falling hopper 4.
The weighing sensor 19 of weight-loss type continuous weighing metering drawing-in device 2 is according to the raw-material weight in weigh hopper 12
Change exports analog signalses to controller, and analog signalses are changed into digital quantity signal by controller, and based on predetermined control
The digital quantity signal is converted into control signal to frequency converter by system instruction requirement, and frequency converter drives reducing motor according to control signal
17 operatings.Reducing motor 17 drives feed screw 10 to rotate by distributor box 16, and the feed screw 10 of rotation promotes weigh hopper
Raw material in 12 are proceeded at blanking box 11, the rubber soft-jointing that raw material are connected by blanking box 11 and with the bottom of blanking box 11
Pipe I9 is fallen into material-falling hopper 4.When the raw material in weigh hopper 12 reach limit weight, controller sends control signal to gas
Dynamic dish valve 14, pneumatic dish valve 14 is opened, and the raw material in raw material cabin 13 are by pneumatic dish valve 14 and rubber soft-jointing pipe II15 to title
Heavy burder bucket 12 feeds；When the raw material in weigh hopper 12 reach upper limit weight, controller sends control signal to pneumatic dish
Valve 14, pneumatic dish valve 14 is closed.
Weight-loss type continuous weighing metering drawing-in device 2 is all poly- by what is continuously matched according to the polymers compositions of production operation
Polymer component is transported in material-falling hopper 4, and the spout 38 of feed cylinder 39 is fallen into by material-falling hopper 4, is mixed by corotating twin-screw
Refine extruder 5 and complete blending and modifying operation.
Mixing modification, the double spiral shells of cocurrent and parallel are carried out to all polymers compositions using corotating twin-screw mixing extruder 5
The mixing modification that bar mixing extruder 5 is used for polymer can meet efficient mixing, rational residence time and residence time
Distribution and the processing work such as enough reaction compartments, reliable heat-exchange capacity and temperature control system, excellent vacuum volatilization ability
Skill requirement.
As shown in Fig. 3 to 5, corotating twin-screw mixing extruder 5 includes the motor being arranged on main machine base 36
21st, high torque gear 23 and cylinder combination 27.Cylinder combination 27 includes feed cylinder 39, the closure cylinder being sequentially connected
40th, gate valve cylinder 42, exhaust cylinder 44 and extrusion cylinder 45, cylinder adjacent each other are integral by mode connects for screw.According to production
Several closure cylinders 40 can be set in the job requirements of technique, the cylinder combination 27 of corotating twin-screw mixing extruder 5, with
Complete the operation process such as conveying, mixing, shearing, reaction, the polymerization of polymer.
The top of feed cylinder 39 is provided with spout 38, and spout 38 is connected with the bottom of material-falling hopper 4, and what is continuously matched is all
Polymers compositions is entered in feed cylinder 39 by spout 38；The side of gate valve cylinder 42 is provided with side spout 29, gate valve cylinder
42 top is provided with nature exhaust outlet 37, inorganic filler or organic filler by the method for machinery can be added from side spout 29 to
The steam that the inside of gate valve cylinder 42, inorganic filler or organic filler contain can be discharged from natural exhaust outlet 37, can be prevented because of water
The obstruction of vapour and the addition for having influence on inorganic filler or organic filler；Gate valve cylinder 42 is provided with gate valve 41, regulation gate valve cylinder
42 aperture of gate valve 41, can adjust the flow resistance of the high molecular polymer melt in cylinder, according to inorganic filler or organic fill out
The loading and characteristic of material, the fusibility of high molecular polymer is can control by the aperture of gate valve 41 of regulation gate valve cylinder 42, with
Improve the addition of inorganic filler or organic filler at side spout 29.The top of exhaust cylinder 44 is provided with vaccum exhaust outlet
43, the connection vacuum exhaust chamber 30 of vaccum exhaust outlet 43, vacuum exhaust chamber 30 can connect external vacuum system, by fused materials
Fugitive constituent and the bubble contained are efficiently discharged by vaccum exhaust outlet 43, to ensure the quality after polymer modification.Extrude cylinder
45 can set up certain extrusion pressure to fused materials, fused materials is steadily extruded.
The rear end of feed cylinder 39 is connected by connected body 26 with the front end of high torque gear 23, motor 21
Output shaft is connected by shaft coupling 22 with the input shaft of high torque gear 23, and two of high torque gear 23 are defeated
Shaft is connected by spline housing 24 with two tail ends of screw mandrel 25 respectively, and two screw mandrels 25 are arranged on cylinder combination 27
In.Electric heater 28, electrical heating are separately installed with closure cylinder 40, gate valve cylinder 42, exhaust cylinder 44 and extrusion cylinder 45
The heat that electric heater 28 is produced is transmitted to the material in cylinder combination 27 by heat transfer by device 28, temperature of charge is increased, reaches
To melting temperature.Cooling water channel is had inside closure cylinder 40, gate valve cylinder 42, exhaust cylinder 44 and extrusion cylinder 45,
Cooling water channel connects chilled water unit.
The chilled water unit includes the cooling water water inlet supervisor 34 being arranged on main machine base 36 and cooling water backwater master
Pipe 35, closure cylinder 40, gate valve cylinder 42, exhaust cylinder 44 and extrude cylinder 45 front lower portion be respectively mounted two with it is cold
But the cooling water branch pipe 31 that water channel is communicated, wherein a cooling water branch pipe 31 is as water inlet pipe, is provided with the He of water adjusting valve 32
Magnetic valve 33, and be connected with cooling water water inlet supervisor 34, another cooling water branch pipe 31 is as return branch, with cooling water backwater
Supervisor 35 connects.When the temperature of each cylinder is because material is during exercise between each cylinder, screw mandrel 25 and material and material
Mutually friction, shearing, when producing substantial amounts of heat and overheating, magnetic valve 33 is opened, and cooling water enters the cooling water of each inner barrel
Road is to automatically adjust the temperature of each cylinder；The aperture for controlling to adjust water valve 32 can adjust cooling water into each inner barrel cooling water
The cooling water inflow in road, to prevent from making each cylinder cooling too fast because cooling water inflow is excessive, it is ensured that the temperature of each cylinder will in technique
Fluctuated in the range of asking.
Motor 21 drives two screw mandrels 25 to exist by shaft coupling 22, high torque gear 23 and spline housing 24
Cocurrent and parallel is rotated in the cylinder combination 27 of corotating twin-screw mixing extruder 5, and two screw mandrels 25 are by spout 38
All polymers compositions at place are delivered into feed cylinder 39 and closure cylinder 40, and material is during exercise with closing cylinder 40, spiral shell
Carry out mutually rubbing between bar mandrel 25 and material and material, shear and mix, in the heat transfer and lock of electric heater 28
The material of addition is set constantly to melt under the collective effect of the aperture of gate valve 41 of valve cylinder body 42.At gate valve cylinder 42, according to polymerization
The characteristic requirements of thing material, inorganic or organic substance is added into polymeric material by the method for machinery from side spout 29,
With reach decline the cost of material, the mesh that moulding processability and end-use properties are improved；Inorganic filler has
The steam that machine filler contains can be discharged from natural exhaust outlet 37, the addition of energy stable inorganic filler or organic filler.Add nothing
Polymeric material after machine or organic substance is promoted by screw mandrel 25, sheared, mixed, after fully being kneaded in closure cylinder 40
And form the polymeric material with property.The material of melting is at exhaust cylinder 44, in the presence of vacuum system, will
Fugitive constituent in fused materials and the bubble contained are efficiently discharged by vaccum exhaust outlet 43 through vacuum exhaust chamber 30, to ensure polymerization
The modified quality of thing.
As shown in Figures 6 and 7, double plunger hydraulic screen replacing device 6 includes net-changing device housing 50, the arrival end of net-changing device housing 50
It is connected with the front end for extruding cylinder 45, upper and lower two net-changing devices is provided between the port of export and arrival end of net-changing device housing 50
Plunger 52, two net-changing device plungers 52 run through whole net-changing device housing 50, net-changing device plunger 52 from the side of net-changing device housing 50
One end is connected by draping plunger limiting plate 53 with the piston rod 75 of net-changing device hydraulic jack 46.The net-changing device hydraulic jack 46
In hydraulic jack mounting seat 47, hydraulic jack mounting seat 47 is arranged on net-changing device housing 50 by mounting seat support bar 48
Side.Two net-changing device plungers 52 are controlled to carry out left and right cunning in net-changing device housing 50 respectively by net-changing device hydraulic jack 46
It is dynamic.Net-changing device electric heater 49 is separately mounted to the top and bottom of net-changing device housing 50, for being heated to net-changing device housing 50
And insulation, to meet processing technology requirement.Screen pack mounting hole 51, screen pack mounting hole 51 are provided with net-changing device plunger 52
Screen pack and filter screen are installed.When changing dirty filter screen, the piston rod 75 of net-changing device hydraulic jack 46 passes through draping plunger limiting plate
53 promotion net-changing device plungers 52 move right, and the screen pack on screen pack mounting hole 51 and filter screen can be removed into net-changing device shell
To change dirty filter screen in body 50；Replace with after new filter screen, the piston rod 75 of net-changing device hydraulic jack 46 is spacing by draping plunger
Plate 53 pulls net-changing device plunger 52 to be moved to the left, and can make the screen pack and filter screen shift-in net-changing device on screen pack mounting hole 51
In housing 50, and screen pack and filter screen is set to be in working position；Working position is alternately in using two net-changing device plungers 52, due to
All the time there is a net-changing device plunger 52 in working position, can ensure to extrude the continuous production of machine production line when changing dirty filter screen.Melting
Material after setting up certain extrusion pressure in extrusion cylinder 45, enables fused materials to pass through under the promotion of screw mandrel 25
The screen pack and filter screen installed on the net-changing device plunger 52 of double plunger hydraulic screen replacing device 6, are steadily extruded to high-temperature fusant
At pump 7.
As shown in FIG. 8 and 9, high-temperature fusant pump 7 includes the pump housing 62, and the pump housing 62 is arranged on high-temperature fusant pump by pump housing pole 63
On base 64, the arrival end of the pump housing 62 is connected by entrance sleeve 61 with the port of export of net-changing device housing 50, pump housing electric heater 60
The top and bottom of the pump housing 62 are separately mounted to, for heating and being incubated to the pump housing 62, to meet processing technology requirement.Driving tooth
The gear of wheel shaft 54 and driven gear shaft 55 is intermeshed and is arranged in the pump housing 62, and driving gear shaft 54 passes through articulated cross shaft
Formula shaft coupling 56 is connected with motor flange 57, and motor flange 57 is arranged on the output shaft of toothed gearing electric motor 58, The gear deceleration electricity
Machine 58 is arranged on high-temperature fusant pump frame 64.Fused materials are transported to the porch of high-temperature fusant pump 7, utilize high-temperature fusant
Pump 7 is to the accurate metering of material, the stability contorting of pressure, and it is effigurate that fused materials are continuously and stably transported to tool
It is molded in extruder head.
The toothed gearing electric motor 58 of high-temperature fusant pump 7 is according to processing technology requirement by Frequency Converter Control rotating speed, The gear deceleration
Motor 58 drives driving gear shaft 54 to be rotated in the pump housing 62 by motor flange 57 and articulated cross shaft formula shaft coupling 56, actively
Gear shaft 54 drives driven gear shaft 55 to rotate backward by gear engagement, and the gear of two gear shafts is by rotating and mutually nibbling
Conjunction steadily extrudes the melt of the porch of the pump housing 62 of high-temperature fusant pump 7 after supercharging, and the melt after supercharging passes through hydraulic separate
Stream valve 8 is continuously and stably transported in the effigurate extruder head of tool, in favor of the cooling shaping technique mistake of material
Journey.The pump housing 62, driving gear shaft 54 and driven gear shaft 55 use special high-temperature alloy steel, the work temperature of high-temperature fusant pump 7
Degree by pump housing electric heater 60 heat after can reach 350 DEG C, the gears of two gear shafts by rotate and intermeshing make input/
The pressure difference of output melt can reach 25MPa.The arrival end of the pump housing 62 of high-temperature fusant pump 7 sets a pressure sensor, i.e., pressed before pump
Pressure sensor participates in the feeding capacity of control weight-loss type continuous weighing metering drawing-in device 2 before force snesor, pump, i.e., when before pump
When actual pressure value is higher or lower than the setup pressure value before pump, subtracting for weight-loss type continuous weighing metering drawing-in device 2 can control
The rotating speed reduction of speed motor 17 is improved, and decreases or increases feeding capacity, makes melt defeated by controlling feeding capacity to reach
With going out pressure and the mesh of discharge capacity stabilization.The port of export of the pump housing 62 of high-temperature fusant pump 7 sets a pressure sensor, i.e., pressure is passed after pump
Pressure sensor plays the function of protection extruder head and shutdown of alarming after sensor, pump.
As shown in Fig. 8 to 11, hydraulic synchronizing valve 8 includes shunting valve body 66, shunts the arrival end and high-temperature fusant of valve body 66
The port of export of the pump housing 62 of pump 7 is connected by discharge connection 59, and melt flow is provided between the port of export and arrival end that shunt valve body 66
Road II72, is provided through melt flow channel II72 plunger 67 on shunting valve body 66, and melt flow channel II72 is split by plunger 67
Into entrance end portion and outlet of hose.Plunger 67 is vertically through whole shunting valve body 66, and the top of plunger 67 passes through post
Plug limited block 70 is connected with the cylinder piston rod 76 of hydraulic jack 69, and the hydraulic jack 69 is arranged on by oil cylinder support bar 68 to be divided
The over top of valve body 66 is flowed, drives plunger 67 is upper and lower to slide by hydraulic jack 69.Opened in the horizontal direction at the middle part of plunger 67
There is melt flow channel I71, be provided with melt flow channel III74 vertically in the bottom of plunger 67, melt flow channel III74 upper ends are close to melt flow
The side of road II72 entrance end portions is provided with lateral openings.When 67 slide downward of plunger, melt flow channel II72 inlet end portion
The melt flow channel I71 passed through with outlet of hose on plunger 67 is divided to turn on；When 67 upward sliding of plunger, melt flow channel II72's
Entrance end portion and outlet of hose are blocked by plunger 67, and the melt flow channel III74 on plunger 67 and melt flow channel II72
Entrance end portion conducting.
When unit brings into operation, driven by the cylinder piston rod 76 of hydraulic jack 69 by plunger limited block 70 on plunger 67
Move, melt flow channel I71 is moved up, the melt flow channel II72 shunted in valve body 66 entrance end portion and outlet of hose blocked,
Melt is vented directly to the lower section of hydraulic synchronizing valve 8 by melt flow channel III74；After unit operation is normal, by hydraulic jack 69
Cylinder piston rod 76 promotes plunger 67 to move down by plunger limited block 70, and melt flow channel I71 is moved down, melt flow channel II72 entrance
End part and outlet of hose conducting, melt are output to the port of export of shunting valve body 66 by melt flow channel II72, finally conveyed
It is molded to having in effigurate extruder head.
When unit is out of service, driven by the cylinder piston rod 76 of hydraulic jack 69 by plunger limited block 70 on plunger 67
Move, plunger 67 can block melt flow channel II72 entrance end portion and outlet of hose, melt flow channel II72 inlet end portion
Point remainder melt is vented directly to the lower section of hydraulic synchronizing valve 8 by melt flow channel III74, molten to empty the residue of the runner in unit
Body, beneficial to the next production run of unit.
The material of the shunting valve body 66 and plunger 67 is nitrated steel.Heating rod mounting hole is provided with shunting valve body 66 side
With square iron 65.Having heaters press strip 73 is installed, heater press strip 73 is used to heating rod being fixed on and added on the outside of heating rod mounting hole
In hot pin mounting hole, shunting valve body 66 is heated and is incubated；Square iron 65 is used for the port of export and extruder for connecting shunting valve body 66
The adpting flange of head, in favor of the installation and removal of extruder head.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of high-efficiency multi-function twin-screw extrusion unit, it is characterised in that：Including weight-loss type continuous weighing metering drawing-in device
(2), steelframe platform (3), corotating twin-screw mixing extruder (5), double plunger hydraulic screen replacing device (6), high-temperature fusant pump
And hydraulic synchronizing valve (8) (7)；
Weight-loss type continuous weighing metering drawing-in device (2) is arranged on steelframe platform (3), weight-loss type continuous weighing metering feeding dress
The raw material cabin (13) that (2) include being used to deposit processing operation raw material is put, pneumatic dish valve (14) is installed in the bottom of raw material cabin (13),
By rubber soft-jointing pipe II (15) connections between the bottom of pneumatic dish valve (14) and its top feed of weigh hopper (12) mouthful, material of weighing
Struggle against (12), distributor box (16), reducing motor (17) are arranged on bottom plate (18), bottom plate (18) is arranged on weighing sensor (19)
On carrier head, weighing sensor (19) is arranged in mounting seat (20), and feed screw (10) is arranged on weigh hopper (12)
Bottom, the tail end of feed screw (10) is connected with the output shaft of distributor box (16), the input shaft and reducing motor of distributor box (16)
(17) output shaft connection, the front end of feed screw (10) is connected with blanking box (11) side, the bottom of blanking box (11) with fall
By rubber soft-jointing pipe I (9) connections between the top feeding mouth (1) of hopper (4)；
Corotating twin-screw mixing extruder (5) includes motor (21), the high torque tooth being arranged on main machine base (36)
Transmission case (23) and cylinder combination (27) are taken turns, cylinder combination (27) includes feed cylinder (39), the closure cylinder being sequentially connected
(40), gate valve cylinder (42), exhaust cylinder (44) and extrusion cylinder (45), the top of feed cylinder (39) is provided with spout
(38), spout (38) is connected with the bottom of material-falling hopper (4), and the side of gate valve cylinder (42) is provided with side spout (29), gate valve
The top of cylinder (42) is provided with nature exhaust outlet (37), and gate valve cylinder (42) is provided with gate valve (41), the top of exhaust cylinder (44)
Vaccum exhaust outlet (43) is provided with, vaccum exhaust outlet (43) connection vacuum exhaust chamber (30), the rear end of feed cylinder (39) passes through connection
Junctor (26) is connected with the front end of high torque gear (23), and the output shaft of motor (21) passes through shaft coupling (22) and height
The input shaft connection of torque gear transmission case (23), two output shafts of high torque gear (23) pass through spline housing respectively
(24) it is connected with two screw mandrel (25) tail ends, two screw mandrels (25) are arranged in cylinder combination (27), close cylinder
(40) electric heater (28), is separately installed with gate valve cylinder (42), exhaust cylinder (44) and extrusion cylinder (45), cylinder is closed
(40) cooling water channel, cooling water channel connection, are had inside gate valve cylinder (42), exhaust cylinder (44) and extrusion cylinder (45)
Chilled water unit；
Double plunger hydraulic screen replacing device (6) includes net-changing device housing (50), arrival end and the extrusion cylinder of net-changing device housing (50)
(45) front end connection, is provided with upper and lower two net-changing device plungers between the port of export and arrival end of net-changing device housing (50)
(52), two net-changing device plungers (52) run through whole net-changing device housing (50), net-changing device post from the side of net-changing device housing (50)
Plug (52) one end is connected by draping plunger limiting plate (53) with the piston rod (75) of net-changing device hydraulic jack (46), net-changing device electricity
Heater (49) is separately mounted to be provided with screen pack peace on the top and bottom of net-changing device housing (50), net-changing device plunger (52)
Fill hole (51), screen pack mounting hole (51) installs screen pack and filter screen；
High-temperature fusant pump (7) includes the pump housing (62), and the arrival end of the pump housing (62) is by entrance sleeve (61) and net-changing device housing (50)
Port of export connection, pump housing electric heater (60) is separately mounted to the top and bottom of the pump housing (62), driving gear shaft (54) and
The gear of driven gear shaft (55) is intermeshed and is arranged in the pump housing (62), and driving gear shaft (54) passes through articulated cross shaft formula
Shaft coupling (56) is connected with motor flange (57), and motor flange (57) is arranged on toothed gearing electric motor (58) output shaft；
Hydraulic synchronizing valve (8) includes shunting valve body (66), and the port of export of the arrival end and the pump housing (62) of shunting valve body (66) passes through
Discharge connection (59) is connected, and melt flow channel II (72) is provided between the port of export and arrival end of shunting valve body (66), in flow divider
The plunger (67) of melt flow channel II (72) is provided through on body (66), melt flow channel II (72) is divided into entrance by plunger (67)
End part and outlet of hose, plunger (67) is vertically through whole shunting valve body (66), and plunger (67) top passes through post
Plug limited block (70) is connected with the cylinder piston rod (76) of hydraulic jack (69), and plunger (67) is driven by hydraulic jack (69)
It is upper and lower to slide, melt flow channel I (71) is provided with the horizontal direction in the middle part of plunger (67), is provided with vertically in plunger (67) bottom
Melt flow channel III (74), melt flow channel III (74) upper end are provided with laterally close to the side of melt flow channel II (72) entrance end portion
Opening；When plunger (67) slide downward, melt flow channel II (72) entrance end portion and outlet of hose pass through plunger (67)
On melt flow channel I (71) conducting；When plunger (67) upward sliding, melt flow channel II (72) entrance end portion and the port of export
Part is blocked by plunger (67), and the melt flow channel III (74) on plunger (67) and melt flow channel II (72) inlet end portion
Divide conducting.
2. a kind of high-efficiency multi-function twin-screw extrusion unit according to claim 1, it is characterised in that：The weight-loss type connects
Continuous Weighing drawing-in device (2) at least two, each weight-loss type continuous weighing metering drawing-in device (2) is weighed provided with three
Sensor (19).
3. a kind of high-efficiency multi-function twin-screw extrusion unit according to claim 2, it is characterised in that：The weighing and sensing
Device (19) exports analog signalses to controller according to the raw-material weight change in weigh hopper (12), and controller is by analog quantity
Signal is changed into digital quantity signal, and the digital quantity signal is converted into control signal to change based on predetermined control instruction requirement
Frequency device, frequency converter drives reducing motor (17) to operate according to control signal.
4. a kind of high-efficiency multi-function twin-screw extrusion unit according to claim 1, it is characterised in that：The cooling water dress
Put including the cooling water water inlet supervisor (34) and cooling water backwater supervisor (35) on main machine base (36), in closure cylinder
(40), the front lower portion of gate valve cylinder (42), exhaust cylinder (44) and extrusion cylinder (45) is respectively mounted two and cooling water channel
The cooling water branch pipe (31) communicated, wherein a cooling water branch pipe (31) is provided with water adjusting valve (32) and magnetic valve (33), and
It is connected with cooling water water inlet supervisor (34), another cooling water branch pipe (31) is connected with cooling water backwater supervisor (35).
5. a kind of high-efficiency multi-function twin-screw extrusion unit according to claim 1, it is characterised in that：The net-changing device liquid
Compressing cylinder (46) is arranged in hydraulic jack mounting seat (47), and hydraulic jack mounting seat (47) is pacified by mounting seat support bar (48)
Side mounted in net-changing device housing (50).
6. a kind of high-efficiency multi-function twin-screw extrusion unit according to claim 1, it is characterised in that：The high-temperature fusant
The pump housing (62) arrival end and the port of export of pump (7) are all provided with pressure sensor.
7. a kind of high-efficiency multi-function twin-screw extrusion unit according to claim 1, it is characterised in that：The hydraulic jack
(69) over top of shunting valve body (66) is arranged on by oil cylinder support bar (68).
8. a kind of high-efficiency multi-function twin-screw extrusion unit according to claim 1, it is characterised in that：The shunting valve body
(66) and plunger (67) material be nitrated steel.
9. a kind of high-efficiency multi-function twin-screw extrusion unit according to claim 1, it is characterised in that：The shunting valve body
(66) it is provided with sideways on the outside of heating rod mounting hole, heating rod mounting hole and having heaters press strip (73) is installed, heater press strip (73)
For heating rod to be fixed in heating rod mounting hole, shunting valve body (66) is heated and is incubated.
10. a kind of high-efficiency multi-function twin-screw extrusion unit according to claim 1, it is characterised in that：The flow divider
Body (66) is provided with square iron (65) sideways, and square iron (65) is used to connect the port of export of shunting valve body (66) and the connection method of extruder head
It is blue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720168176.7U CN206501411U (en) | 2017-02-23 | 2017-02-23 | High-efficiency multi-function twin-screw extrusion unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720168176.7U CN206501411U (en) | 2017-02-23 | 2017-02-23 | High-efficiency multi-function twin-screw extrusion unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206501411U true CN206501411U (en) | 2017-09-19 |
Family
ID=59842095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720168176.7U Withdrawn - After Issue CN206501411U (en) | 2017-02-23 | 2017-02-23 | High-efficiency multi-function twin-screw extrusion unit |
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| CN (1) | CN206501411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626316A (en) * | 2017-02-23 | 2017-05-10 | 南京杰恩特机电有限公司 | Efficient multifunctional double-screw extruder unit |
-
2017
- 2017-02-23 CN CN201720168176.7U patent/CN206501411U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626316A (en) * | 2017-02-23 | 2017-05-10 | 南京杰恩特机电有限公司 | Efficient multifunctional double-screw extruder unit |
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Granted publication date: 20170919 Effective date of abandoning: 20180907 |