A kind of Multi-station circulating alloy holding furnace feeding system
Technical field
The utility model belongs to aluminium alloy foundary industry technical field, more particularly to aluminium alloy melt quality and molten aluminum
In the continuously casting production process that temperature-controlled precision all has higher requirements, high melt quality matched with automatic casting system, high control
The Multi-station circulating alloy holding furnace feeding system of warm precision.
Background technique
In aluminium alloy casting process, after the smelting furnace of aluminium alloy is molten into molten aluminum, needs to carry out molten aluminum rotation spray and blow and fuse
Body purification process link, the oxidized aluminum alloy slag inclusion and hydrogen for generating and adsorbing in fusion process for removing molten aluminum, then
By molten aluminum be transferred to in holding furnace similar in Casting Equipment, for keeping temperature of aluminum liquid to be in temperature required for casting technique
In range, in order to avoid the undue fluctuation of temperature of aluminum liquid influences the process of setting of molten aluminum, and then the quality of aluminium alloy castings is influenced.
Molten aluminum melt quality is key factor and the source for influencing high-quality aluminum alloy casting, due to molten aluminum melt easily table
Face oxidation and the characteristic for absorbing Hydrogen in Air, it is necessary to assure the processing of molten aluminum cleaning molten and holding are carried out after aluminum alloy melting,
And it completes to produce and use within a certain period of time.Meanwhile adding when progress molten aluminum cleaning molten treatment process link and into holding furnace
Add new molten aluminum and cause temperature fluctuation that will all will lead to production beyond Process temperature ranges and shut down waiting, greatly wastes life
The time is produced, reduces production efficiency, and can affect to the stability of production casting quality.
Currently, traditional alloy holding furnace, there is preferable heat insulation effect, but because can not preferably control molten aluminum quality with
Temperature-controlled precision is not able to satisfy requirement and (adds and inhale hydrogen and oxide after molten aluminum again, prevent Metamorphism treatment from failing and adding for a long time
Add temperature of aluminum liquid fluctuation etc.).Needing to design one kind in aluminium alloy casting industry in a hurry direct-on-line cleaning molten and can keep
Holding furnace, while not only having met the high quality requirement of molten aluminum melt, and but also be able to achieve the high-precision control on-line continuous of temperature of aluminum liquid
The heat preservation furnace system of production.
Utility model content
According to above-mentioned actual conditions and problem, the utility model devises one kind and is applied in aluminium alloy casting industry, matches
It is cased with and scoops the high melt quality of material and casting system, the multistation alloy holding furnace feeding system of high temperature-controlled precision automatically, both
It is able to satisfy the high quality requirement of molten aluminum melt, and is able to achieve the high-precision control on-line continuous production of temperature of aluminum liquid.
A kind of Multi-station circulating alloy holding furnace feeding system, the system mainly include two or more holding furnaces, two groups
The above holding furnace running gear scoops material and casting machine hand and overall system control etc., and each holding furnace is placed on one group of guarantor
On warm furnace running gear, holding furnace, holding furnace running gear and material is scooped and casting machine hand is connected with overall system control,
Overall system control is by control holding furnace, holding furnace running gear and scoops material and casting machine hand and completes continuous casting.
Two or more holding furnaces, every furnace structure size are identical.The holding furnace mainly includes holding furnace
Furnace body, holding furnace heating system and temperature thermocouple, holding furnace heating system are mounted in holding furnace furnace body wall with embedded mode,
Quick coupling, holding furnace heating system and temperature thermocouple, which are provided with, on heat preservation furnace body passes through quick coupling and cable and entirety
Control system connection keeps the temperature being switched fast for furnace body during easy to produce.
The heat preservation furnace body is crucible type or pool, and furnace inner space meets rotary impreller degassing technique online assignment,
Scooping material mouth size, material manipulator is matched to be scooped scoop size Aided design and can be replaced according to scooping.
The structure design of holding furnace running gear more than two is identical.Every group of holding furnace running gear is walked by furnace body
Chassis, sliding rail and traction electric machine composition, the holding furnace are placed in furnace body walking chassis, complete holding furnace by working
Repeatedly switching walking of the position to waiting position.Furnace body walking chassis and holding furnace are mutually independent two parts, convenient for running to
When position, furnace body recycling replacing is kept the temperature by platform.
Setting walking limit signal sensor on the sliding rail, the traction electric machine and walking limit signal pass
Sensor is connected with overall system control, and walking limit signal sensor is believed to overall system control feedback holding furnace walking position
Number, overall system control controls the walking and stopping of holding furnace by traction electric machine and walking limit signal sensor.Such as lead
Draw motor affect furnace body walking chassis reach working position when, triggering walking limit signal sensor, give overall system control the work
Position holding furnace has arrived working position signal.
It is described scoop material and casting machine hand material tool scooped by industrial servo manipulator and servo form, manipulator front end is set
There is level probe, can be fed back to overall system control when molten aluminum liquid level signal in forehearth.
The overall system control is made of PLC, man-machine interface and heat preservation furnace body heating power supply control module etc..
PLC carries out molten aluminum by logic judgment by acquisition holding furnace walking position signal, aluminium liquid height signal and temperature of aluminum liquid signal
Temperature control, holding furnace position walking control and scoop material manipulator and scoops material Switch of working position control, and by man-machine interface by operating
Personnel carry out parameter setting.
The furnace body heating power supply control module is connected by cable with heat preservation furnace body quick coupling, can be with every
Thermal insulation furnace body is switched fast.
PLC carries out logic calculation and controls furnace body heating power supply by acquisition aluminium liquid height signal and temperature of aluminum liquid signal
The output power of control module and the heating region range of holding furnace heating system improve temperature of aluminum liquid and control precision.
The utility model has the beneficial effects that
1, by designing the heat preservation furnace body scheme of more circulating replaceables, designed holding furnace furnace structure can match
Online rotary blowing cleaning molten technique is covered, molten aluminum in holding furnace is met and carries out online rotary blowing cleaning molten and stand to protect
The whole series melt treatment process requirements such as temperature, efficiently solve the problems, such as molten aluminum melt quality, improve casting product quality.
2, aluminium liquid height signal and temperature of aluminum liquid signal are acquired by overall system control, is added by the control of PLC logical program
The output power of thermoelectricity source module and the heating region of heating system, can efficiently control the fluctuation of temperature, realize heat preservation
The high-precision control of temperature of aluminum liquid in furnace ensure that the stability and consistency of production technology.
3, it by the mutual handover scheme of each heat preservation furnace body of design, eliminates and newly adds molten aluminum in holding furnace again, melts
Production caused by body purification, waiting temperature are stablized pauses, and realizes the serialization operating of production, solves in industrialized production
Continuity, stability problem.
4, by the high melt quality of molten aluminum, high-temperature precision in control holding furnace, while continuous production is realized, both
The casting product quality of enterprise's production is improved, and reduces enterprise's production downtime, improves production efficiency, it being capable of multilayer
It is secondary to help enterprise to improve productivity effect and profit with multi-angle, there is very big application market in current aluminium alloy casting industry
And potentiality.
Detailed description of the invention
Fig. 1 is the Multi-station circulating alloy holding furnace material feeding system device schematic diagram of the utility model.
Main appended drawing reference:
1 heat preservation 2 holding furnace running gear of furnace body
3 scoop 4 overall system control of material and casting machine hand
5 holding furnace heating system, 6 temperature thermocouple
7 quick coupling, 8 furnace body walking chassis
9 sliding rail, 10 traction electric machine
11 servounit arms 12 scoop material tool (spoon)
13 molten aluminum level probe, 14 PLC
15 man-machine interface, 16 furnace body heating power supply control module
Specific embodiment
The utility model is that one kind is applied in aluminium alloy casting industry, is configured with the Gao Rong for scooping material and casting system automatically
The multistation alloy holding furnace feeding system of weight, high temperature-controlled precision, as shown in Figure 1, the system is mainly by more crucibles
Formula/pool structural thermal insulation furnace (be two as shown in the figure), a set of scoops multiple groups holding furnace running gear 2 (as shown in the figure is two groups)
Material and the part such as casting machine hand 3 and overall system control 4 form, and holding furnace is placed on holding furnace running gear 2, is kept the temperature
Furnace, holding furnace running gear 2 and scoop material and casting machine hand 3 is connected with overall system control 4.
2 mating 1 holding furnaces of every group of holding furnace running gear can independent operating;It is matched to scoop material and the tool of casting machine hand 3
With good grounds received instruction selection between more holding furnaces scoops the function of material, and detects the holding furnace liquid level height for exporting scooped material
Signal is spent to overall system control 4;Overall system control 4 is according to holding furnace walking position signal, aluminium liquid height signal and molten aluminum
Temperature signal, control scoop material and casting machine hand 3 switch between multiple groups holding furnace scoop material and control holding furnace running gear 2
Movement and fixation.
Holding furnace is formed by more, and every holding furnace all mainly includes heat preservation furnace body 1, is embedded in heat preservation 1 wall of furnace body
Heating system 5 and be mounted on heat preservation furnace body 1 in temperature thermocouple 6.Every 1 structure size of heat preservation furnace body complete one
It causing, keeps the temperature and be provided with quick coupling 7 on furnace body 1, holding furnace heating system 5, temperature thermocouple 6 are connected with quick coupling 7,
Quick coupling 7 is connected by cable with overall system control 4 again, cyclic switching in the process easy to produce.
Heat preservation furnace body 1 can be divided into two kinds of furnace type structures of crucible type and pool, and the structure in the stove of design can cooperate online
Rotary blowing cleaning molten technique online assignment, holding furnace scoops material mouth size can be according to scooping scoop size Aided design and replacement.
Multiple groups holding furnace running gear 2 is completely the same running gear, and every group of holding furnace running gear 2 is walked by furnace body
Chassis 8, sliding rail 9 and traction electric machine 10 are constituted, and heat preservation furnace body 1 is placed in furnace body walking chassis 8, complete holding furnace by
Repeatedly switching walking of the working position to waiting position.
Setting walking limit switch (walking limit signal sensor), traction electric machine 10 and walking limit on sliding rail 9
Switch is connected with overall system control 4, and walking limit switch feeds back holding furnace walking position signal to overall system control 4,
Overall system control 4 controls the walking and stopping of holding furnace by traction electric machine 10 and walking limit switch.Such as traction electric machine
10 affect furnace body walking chassis 8 reach working position when, triggering walking limit switch, give the station holding furnace of overall system control 4
Working position signal is arrived.
Furnace body walking chassis 8, with heat preservation furnace body 1 be mutually independent two parts, convenient for run to wait position when, by platform
Keep the temperature 1 recycling replacing of furnace body.
It is a set of to scoop material and casting machine hand 3, by servounit arm 11 and scoops material tool (spoon) 12 and form, servounit arm 11
Front end have molten aluminum level probe 13, molten aluminum liquid in currently used furnace can be exported in real time to the PLC14 in overall system control 4
Position altitude signal.
Overall system control 4 is made of PLC 14, man-machine interface 15 and heat preservation furnace body heating power supply control module 16.
PLC14 can by acquisition holding furnace walking position signal, heat preserving furnace aluminum liquid altitude signal and temperature of aluminum liquid signal, into
Row logic calculation control temperature of aluminum liquid, holding furnace position walking and scoop material manipulator and scoop discharge position, and by man-machine interface 15 by
Operator carries out parameter setting.
PLC14 simultaneously controls furnace body heating power supply control by acquisition aluminium liquid height signal and temperature of aluminum liquid signal, logic calculation
The heating region of heating system 5 in the output power and holding furnace of molding block 16 improves temperature of aluminum liquid and controls precision.
Furnace body heating power supply control module 16 is connected by cable with heat preservation furnace body quick coupling 7, can be protected with each
Warm furnace body 1 is switched fast.
Below by taking a kind of multistation crucible type holding furnace feeding system of aluminum alloy press casting machine side as an example, this reality is described in detail
With the specific operation process of new device:
(1) a certain furnace keeps the temperature furnace body 1 in system, fills molten aluminium alloy from other smelting equipments, passes through rotation
It is blown after depassing unit carries out purifying aluminium alloy melt processing, the holding furnace of high-quality Al alloy molten solution after purified treatment will be filled
It is placed in corresponding furnace body walking chassis 8, and inserts the cable into furnace body quick coupling 7, believe 6 temperature of thermocouple of furnace body
Number and heating power supply 5 be connected with overall system control 4, keep to furnace body molten aluminum heating and preservation and controlling.
(2) movement of furnace body walking chassis 8 is driven by traction electric machine 10, and heat preservation furnace body 1 is sent to scooping material and casting
Manipulator 3 scoops in material working region, and the triggering walking limit signal of furnace body walking chassis 8 informs overall system control 4.Whole control
PLC 14 in system 4 combines in holding furnace 6 temperature signal of temperature thermocouple and furnace body walking signal in place, issues instructions to and scoops
Material and casting machine hand 3 scoop to the heat preservation furnace body 1 signal of material.
(3) material and casting machine hand 3 are scooped during repeatedly scooping material, is believed by the molten aluminum level probe 13 of manipulator
Number, it is whole by the altitude signal Real-time Feedback of molten aluminum in holding furnace to overall system control 4 in conjunction with mechanical subordinate drop height and position
6 temperature signal of temperature thermocouple in PLC14 combination holding furnace in body control system 4, control heat preservation furnace body heating power supply control
The power output of molding block 16, and then can be with the temperature-controlled precision in high-precision control furnace body when different aluminium liquid heights.
(4) when 6 temperature signal value of furnace body temperature thermocouple and aluminium liquid height signal value pass through man-machine boundary beyond operator
After the value range that face 15 is arranged, PLC14 issues alarm signal, and instructs and scoop material and casting machine hand 3 out of this heat preservation furnace body 1
Stopping scoops material.
(5) in carrying out step (3), it is molten that another furnace high-quality Al alloy is ready to complete simultaneously according to step (1) and (2)
Liquid is placed in another furnace body walking chassis 8, and heat preservation furnace body 1 is walked in place.Overall system control 4 combines the heat preservation
Related temperature of aluminum liquid signal and the position signal in place that furnace is fed back, instruction scoop material and casting machine hand 3 and turn from a upper holding furnace
It moves to this holding furnace to carry out continuing to scoop material operation, therefore ensure that production is not interrupted and scoop material.
(6) instruct the operating of traction electric machine 10 by a upper heat preservation furnace body 1 and furnace by the PLC 14 in overall system control 4
Body walking chassis 8, which is moved to, scoops material and casting machine hand 3 scoops outside material operating area, and operator will scoop the holding furnace that material is completed
Furnace body 1 is transferred to other smelting area and fills aluminium alloy solution and carry out rotary blowing cleaning molten processing, is ready for next
Wheel circulation production process.
The utility model passes through the multistation alloy holding furnace feeding system to this high melt quality, high temperature-controlled precision
In heat preservation furnace main body, holding furnace running gear, the optimization design for scooping the parts such as material and casting machine hand, overall system control,
Solve the problems, such as that conventional vacuum furnace can not carry out cleaning molten by rotary impreller degassing online, or due to that must carry out in production
Rotary blowing cleaning molten link cause production pause can not continuous production the problem of, while more holding furnaces of optimization design again
Alternate cycles use and mechanical arm multi-station switches the system schema for scooping material.Not only molten aluminum melt quality in furnace body, but also solution had been improved
It has determined and has continuously newly added production disruption problem caused by molten aluminum, rotary impreller degassing cleaning molten technique, realized high in holding furnace
The molten aluminum sustainable supply of melt quality, high temperature-controlled precision, cooperation is uninterrupted, continous way online production without a break is run.?
In enterprise practical production run, the quality of molten aluminum and product had not only been effectively improved, but also has reduced production downtime, had been improved
Production efficiency increases actual benefit for enterprise.
Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, related technology neck
The those of ordinary skill in domain can also make various structure tune in the case where not departing from the spirit and scope of the utility model
The replacement of whole and device, all equivalent technical solutions also belong within the scope and protection scope of the utility model.