Full-automatic dyestuff weighing material equipment
Technical field
The utility model belongs to dye facilities technical field, and in particular to a kind of full-automatic dyestuff weighing material equipment.
Background technology
Due to the disappearance of China human mortality bonus, enterprises recruit persons for jobs cost constantly rises, and employee is also increasingly difficult to recruit.Passing
Textile printing and dyeing enterprises in industry of uniting, as or else change it is original manually based on production technology, enterprise has been difficult to have existence
Space.In recent years, due to the continuous development of light mechanical and electrical integration, dyeing apparatus automaticity there has also been very big carry
It is high;Very agenda has been put in the dyestuff weighing of crux, material, the automation of dye liquor conveying equipment in dyeing process;
During the sequence of operations such as existing dyestuff weighing, material, dye liquor conveying, dye barrel is horizontal layout in workshop
In, workshop space utilization rate is very low, and worker's material stock feeding takes time and effort very much;
Traditional artificial powder dye material mode, it is according to needed for dyeing, by manually by the dyestuff powder in weighing bucket
Put into the auxiliary tank by overflow dyeing machine, then add clear water and be stirred, after dye liquor conveys, by manually to auxiliary tank and pipe
Road is rinsed.Due to dyeing with powder dye species various, manual operation, carelessness mistake it is unavoidable, charging time can not be accurate
Ensure, it is also possible to miscarrying phenomenon occur;Material time, water consumption, water temperature and the degree of stirring are difficult to standardize, whole mistake
Journey human factor influences greatly, to easily cause " color is not inconsistent ", " aberration " and " cylinder is poor ";Production scene explosive barrel is miscellaneous old, and environment is seriously dirty
Dye, actual bodily harm suffered by worker are big;
The automatic material of dyestuff is to carry out material in the tank of a sealing, and dyestuff is flown upward everywhere during material, puts tank into
Interior charging basket inside and outside has dyestuff to be attached to a barrel surface, and charging basket is to recycle, so the charging basket for having changed material must when going out tank
Must clean up and bucket surfaces externally and internally does not have the globule.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided the weighing of one kind collection dyestuff, material, dye liquor are defeated
The integrated full automatic dyestuff weighing material equipment of function such as send.
The utility model is achieved through the following technical solutions:
A kind of full-automatic dyestuff weighing material equipment, including powder dye automatic weighing system (1), stereo garage is captured automatically
(2), dyestuff material device (3) and dedicated dye bucket (4), the outfeed platforms of powder dye automatic weighing system pass through conveying
Machine is connected to the feeding platform of automatic crawl stereo garage, and dyestuff material device is arranged on automatic crawl stereo garage side;
Stereoscopic frame (2.1) that the automatic crawl stereo garage includes being used for placing dye barrel, three axle mobile platforms (2.2),
And for capturing the manipulator (2.3) of dye barrel, manipulator is arranged on three axle mobile platforms, with realize manipulator along X, Y,
Z-space moves, so as to realize crawl and transport of the manipulator to the dye barrel of optional position on stereoscopic frame;
The dyestuff material device includes material tank body (3.1), cover (3.2), clamping switching mechanism (3.4), and cover leads to
Crossing pneumatic cap-opening mechanism, to be arranged on material tank body suitable for reading, and tank bottom is provided with discharging opening (3.5);On material tank body inwall edge suitable for reading
Its circumference is provided with a circle water annulus (3.11), and water inlet (3.12) is provided with water annulus, and water inlet connection high pressure supplies
Water lines, the through hole against material inner tank wall is provided with water annulus;360 degree of rotary nozzles are installed on cover
(3.14), the external total water inlet/air pipe of 360 degree of rotary nozzles, total water inlet/air pipe connection cold water water inlet branch, hot water enter
Moisture road and high pressure admission branch;Clamping switching mechanism (3.4) includes Dye Ring bucket support (3.41), central ejector rod
(3.42), hollow rotating shaft (3.43), cylinder (3.44), axle sleeve (3.45), upset motor (3.46) and travelling gear, annular
Dye barrel support (3.41) is arranged on material tank interior, and Dye Ring bucket support (3.41) is connected with hollow rotating shaft (3.43),
Hollow rotating shaft is fixed on by axle sleeve on the tube wall of material tank body, and central ejector rod (3.42) is co-axially located at hollow rotating shaft (3.43)
In, the actuating strut of central ejector rod outer end connection cylinder (3.44), driven gear (3.48) is fixedly installed on hollow rotating shaft, is turned over
Driving gear (3.49) is fixedly installed on the output shaft of rotating motor (3.46), driving gear is connected with driven gear, upset electricity
Machine driving hollow rotating shaft rotation, hollow rotating shaft drives the upset of Dye Ring bucket support, when cylinder actuating strut acts, cylinder action
Bar can drive central ejector rod to withstand or shrink in its axial direction of hollow rotating shaft interior edge;
The dye barrel is barrel-shaped, and the top opening of dye barrel is provided with flanging (4.1), so that manipulator can lift dye
Charging basket;Outer wall circumference is provided with a circle gusset (4.2) on the outer wall of dye barrel, the gusset by annulus top plate (4.21) and
Annulus side plate (4.22) forms, and annulus top plate and dye barrel are radial parallel, and annulus side plate and dye barrel are coaxial, the top of annulus side plate
Side with the excircle of annulus top plate is seamless is fixedly connected;The outer wall of annulus top plate inner periphery and dye barrel welds, and on annulus top
Plate is provided with multiple leaking holes (a) with dye barrel outer wall junction;It is provided with the bottom side of annulus side plate multiple recessed poor (b);
After dye barrel (4) is put into the Dye Ring bucket support (3.41) of clamping switching mechanism, the annulus side of the gusset (4.2) of dye barrel
Plate (4.22) is erected on Dye Ring bucket support (3.41), leaking hole (a) and circle between annulus top plate and dye barrel outer wall
Recessed poor (b) between ring side plate (4.22) and Dye Ring bucket support (3.41) forms drainage channel.
In the above-mentioned technical solutions, the stereoscopic frame (2.1) includes three layers, four dye barrel supports of every layer of setting
(2.11) dye barrel, can be placed on each dye barrel support respectively.
In the above-mentioned technical solutions, three axle mobile platforms include base frame, column, crossbeam, and base frame is arranged on rack-track,
The first axle travel mechanism that base frame moves along rack-track horizontal cross is formed, column is fixed on base frame vertically, and crossbeam passes through
Guide rail screw body is arranged on column, forms the second axle travel mechanism that crossbeam moves up and down vertically along column, manipulator peace
Shelve and be arranged on by guide rail screw body on crossbeam, manipulator is arranged on manipulator mounting rack, forms manipulator along crossbeam
3rd axle travel mechanism of horizontal lengthwise movement.
In the above-mentioned technical solutions, material tank base is taper, and steam inlet is provided with the cone wall of material tank body
Mouthful, steam inlet is external to supply high pressure vapor line, and steam inlet is provided with the first valve;Pacify on the cone wall of material tank body
Equipped with temperature sensor.
In the above-mentioned technical solutions, the external discharge nozzle road of discharging opening, pump is set on the pipeline that discharges, water annulus water inlet connects
The second valve is set on the high service pipeline connect.
In the above-mentioned technical solutions, the center of cover is provided with 360 degree of rotary nozzles;Set in cold water water inlet branch
The 3rd valve is equipped with, the 4th valve is provided with hot water water inlet branch, the 5th valve is provided with high pressure admission branch,
Flowmeter is set on total water inlet/air pipe.
In the above-mentioned technical solutions, Tuning Fork Switch is installed in material tank body discharge outlet.
In the above-mentioned technical solutions, agitating paddle is provided with dyestuff material device, the agitating paddle oblique cutting is arranged on material
In tank body, agitating paddle bottom is deeply to the taper tank base of material tank body, agitating paddle top and outside agitating paddle motor
Connection.
In the above-mentioned technical solutions, leaking hole is along annulus top plate inner periphery equidistantly distributed, circle of the groove along annulus side plate
All equidistantly distributeds.
The application method of full-automatic dyestuff weighing material equipment of the present utility model is as follows:
Powder dye automatic weighing system carries out the weighing and burden of dyestuff, and the dyestuff prepared is placed in dye barrel, and
Dye barrel is sent at the feeding platform of automatic crawl stereo garage;Then three axle mobile platforms are adjusted, make manipulator crawl dye
Dye barrel is simultaneously carried on stereoscopic frame by charging basket, realizes that the solid of dye barrel is put, so as to substantially increase space availability ratio;
When needing material, three axle mobile platforms are adjusted, the dye barrel for making manipulator crawl be stored on stereoscopic frame, and will
Dye barrel is put into the Dye Ring bucket support in material tank body, the gusset of dye barrel is bridged on Dye Ring bucket support,
Then cover is closed;Then the cylinder action of clamping switching mechanism, cylinder driving central ejector rod ejection, makes central ejector rod extend muscle
Plate upper surface, the gusset for blocking main dye barrel are stuck between Dye Ring bucket support and central ejector rod, afterwards turn over motor action,
Hollow rotating shaft rotation is driven, hollow rotating shaft drives the upset of Dye Ring bucket support, the dyestuff in dye barrel is poured;
Then, the 3rd valve and the 4th valve are opened, is sprayed water by 360 degree of rotary nozzles into material tank body, and open
Agitating paddle, dissolving material is carried out to dyestuff;Pass through the flowmeter being arranged on the external total water inlet/air pipe of 360 degree of rotary nozzles
Total inflow is detected, and passes through the 3rd valve and the 4th Valve controlling inflow;Detected by temperature sensor in batch can body
Water temperature signal, when water temperature is less than setting value, the first valve is opened, and is passed through high-temperature steam into batch can body, lifts water temperature, with up to
To optimization material temperature degree;
After the completion of material, pump is opened, dye solution is discharged from discharging opening, whether dye solution is detected by Tuning Fork Switch
All discharges, dye solution close pump after all discharging;
Then, 360 degree of rotary nozzle water supply water routes (opening the 3rd valve or the 4th valve) are opened and water annulus enters
The second valve (is opened) in water water route, dye barrel and clamping switching mechanism and agitating paddle is carried out using 360 degree of rotary nozzles clear
Wash, cleaned using the inwall of water annulus to material tank body;During cleaning, the driving dyestuff tank upset of clamping switching mechanism is several
It is secondary, while agitating paddle low-speed running, to be cleaned to dye barrel, clamping switching mechanism and agitating paddle comprehensively;During cleaning, water
Leaking hole and the drainage channel of recessed grain composition are flowed through, so as to avoid dyestuff from remaining, improves cleaning performance;
After the completion of cleaning, pump is again turned on, rinse water is discharged from discharging opening;
Then, the second valve, the 3rd valve and the 4th valve are closed, opens the 5th valve, by 360 degree of rotary nozzles to
Blow in material tank body, dry up dye barrel, during drying, the upset of clamping switching mechanism driving dyestuff tank is several times;
After the completion of drying, the 5th valve is closed, opens cover, manipulator takes out dye barrel.
The advantages of the utility model and have the beneficial effect that:
1, the utility model by powder dye automatic weighing system, automatically capture stereo garage, the organic knot of dyestuff material device
Close, integrate the functions such as dyestuff weighing, material, dye liquor conveying, feature-rich, automaticity is high.
2, automatic crawl stereo garage of the present utility model has the stereoscopic frame for being used for placing dye barrel, and coordinates the movement of three axles
Platform and manipulator, the automatic stereo formula access of dye barrel is realized, compared with traditional plane access, the utility model is significantly
Workshop space utilization rate is improved, reduces hand labor cost, improves the access efficiency of dye barrel;
3, the material tank body bottom surface of dyestuff material device of the present utility model uses pyramidal structure, with traditional plane tank bottom
Compare, avoid dye solution and remain in tank bottom;Dyestuff material device has steam inlet, and water temperature is improved by high-temperature steam,
Material temperature degree is optimized to reach, compared with traditional heating rod or other electric heating tube in drier device schemes, avoids dyestuff attachment
Electric heater unit surface (electric heater unit surface temperature is too high, and it is viscous glutinous that attachment easily occurs for dyestuff) is sticky in, while is also avoided
Cleaning to built-in electric heater unit;Dyestuff material device tank deck uses 360 degree of rotary nozzles, realizes to material tank body
Full angle is intake and cleaning;The external total water inlet/air pipe of 360 degree of rotary nozzles, total water inlet/air pipe connection cold water enter moisture
Road, hot water water inlet branch and high pressure admission branch, 360 degree of rotary nozzles can intake and can be with air inlets, it is achieved thereby that right
The cleaning of tank body and blow-dry function;The clamping switching mechanism of dyestuff material device is engaged with dedicated dye bucket, realizes dyestuff
Bucket freely overturning in material tank body;
4, dedicated dye bucket top opening of the present utility model is provided with flanging, the machinery of flanging and automatic crawl stereo garage
Palmistry coordinates, so that manipulator can lift dye barrel;Outer wall circumference is provided with a circle gusset on the outer wall of dye barrel, when
After dye barrel is put into the Dye Ring bucket support of clamping switching mechanism, the annulus side plate of the gusset of dye barrel is erected at Dye Ring
On bucket support, the recessed grain between leaking hole and annulus side plate and Dye Ring bucket support between annulus top plate and dye barrel outer wall
Drainage channel is formed, so as to avoid the gap that dyestuff is remained between dye barrel and Dye Ring bucket support.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Fig. 2 is the top view of automatic crawl stereo garage of the present utility model.
Fig. 3 is the front view of automatic crawl stereo garage of the present utility model.
Fig. 4 is the structural representation of dyestuff material device of the present utility model.
Fig. 5 is the close-up schematic view of dyestuff material device of the present utility model.
Fig. 6 is the top view of dyestuff material device of the present utility model.
Fig. 7 is the dimensional structure diagram of dye barrel of the present utility model.
Fig. 8 is the front view of dye barrel of the present utility model.
Fig. 9 is close-up schematic view at Fig. 8 A.
Figure 10 is the structural representation that manipulator and dye barrel of the present utility model coordinate.
Figure 11 is the structural representation that dye barrel of the present utility model and clamping switching mechanism coordinate.
Embodiment
The technical solution of the utility model is further illustrated with reference to specific embodiment.
A kind of full-automatic dyestuff weighing material equipment, referring to accompanying drawing 1, including powder dye automatic weighing system 1, grab automatically
Take stereo garage 2, dyestuff material device 3 and dedicated dye bucket 4;
The powder dye automatic weighing system 1 using patent No. CN2013102181007 " powder dye is weighed automatically
System ", realize the weighing dispensing of powder dye, the outfeed platforms of the mobile splicing dolly side of powder dye automatic weighing system
The feeding platform of automatic crawl stereo garage is connected to by conveyer (drum conveyor), splendid attire is had illicit sexual relations by outfeed platforms
The dye barrel of material is delivered at the charging aperture of automatic crawl stereo garage.
Referring to accompanying drawing 2 and accompanying drawing 3, the automatic crawl stereo garage 2 includes being used for the stereoscopic frame 2.1, three for placing dye barrel
Axle mobile platform 2.2 and the manipulator 2.3 for capturing dye barrel, the stereoscopic frame 2.1 include three layers, and every layer sets four
Individual dye barrel support 2.11, can place a dye barrel 4 on each dye barrel support 2.11 respectively, and manipulator 2.3 is arranged on three
On axle mobile platform 2.2, to realize that manipulator moves along X, Y, Z-space, so as to realize manipulator to optional position on stereoscopic frame
Dye barrel crawl and transport;The side of stereoscopic frame is provided with feeding platform 2.4;In the present embodiment, the movement of three axles is flat
Platform 2.2 includes base frame 2.21, column 2.22, crossbeam 2.23, and base frame is arranged on rack-track 2.24, forms base frame along rack rail
The first axle travel mechanism of road horizontal cross motion, column 2.22 are fixed on base frame 2.21 vertically, and crossbeam 2.23 passes through guide rail
Screw body is arranged on column 2.22, forms the second axle travel mechanism that crossbeam moves up and down vertically along column, manipulator peace
Shelve 2.25 to be arranged on crossbeam 2.23 by guide rail screw body, manipulator 2.3 is arranged on manipulator mounting rack 2.25, structure
The 3rd axle travel mechanism into manipulator along the horizontal lengthwise movement of crossbeam.
Referring to accompanying drawing 4-6, dyestuff material device 3 includes material tank body 3.1, cover 3.2, agitating paddle 3.3, clamping tipper
Structure 3.4, it is suitable for reading that cover by pneumatic cap-opening mechanism is arranged on material tank body, and the material tank diameter is 1m, material tank body bottom
Portion is taper, and cone angle is 45 degree, and tank bottom is provided with discharging opening 3.5, the external discharge nozzle road of discharging opening, and pump is set on discharging pipeline
3.6;Temperature sensor 3.7 is installed on the cone wall of material tank body, Tuning Fork Switch 3.8 is installed in material tank body discharge outlet
(detection liquid level signal), at least one steam inlet 3.9 is additionally provided with the cone wall of material tank body, steam inlet is external
For high pressure vapor line, steam inlet is provided with the first valve 3.10;It is provided with material tank body inwall suitable for reading along its circumference
One encloses water annulus 3.11, and water inlet 3.12, water inlet connection high service pipeline, high service pipe are provided with water annulus
Second valve 3.13 is set on road, the through hole against material inner tank wall is provided with water annulus, water under high pressure enters annular water
It is spouting from water annulus through hole behind road, material inner tank wall is cleaned;The center of cover is provided with 360 degree of rotations
Turn the external total water inlet/air pipe of 3.14,360 degree of rotary nozzles of shower nozzle, total water inlet/air pipe connection cold water water inlet branch, heat
Water is intake branch and high pressure admission branch (can be pressure-air or high steam), and the is provided with cold water water inlet branch
Three valves 3.15, the 4th valve 3.16 is provided with hot water water inlet branch, the 5th valve is provided with high pressure admission branch
3.18, flowmeter 3.17 is set on total water inlet/air pipe;
Clamping switching mechanism 3.4 includes Dye Ring bucket support 3.41, central ejector rod 3.42, hollow rotating shaft 3.43, cylinder
3.44th, axle sleeve 3.45, upset motor 3.46 and travelling gear, the internal diameter of Dye Ring bucket support 3.41 are slightly larger than dye barrel
External diameter, dye barrel 4 can be placed on Dye Ring bucket support 3.41, Dye Ring bucket support 3.41 is arranged in material tank body
Portion, Dye Ring bucket support 3.41 are connected with hollow rotating shaft 3.43, and hollow rotating shaft 3.43 is fixed on material tank by axle sleeve 3.45
On the tube wall of body, central ejector rod 3.42 is co-axially located in hollow rotating shaft 3.43, and the length of central ejector rod is grown more than hollow rotating shaft
Degree, the outer end of central ejector rod 3.42 connect the actuating strut of cylinder 3.44, and cylinder 3.44 passes through being fixedly mounted on of mounting bracket 3.47
On batch can body, driven gear 3.48 is fixedly installed on hollow rotating shaft 3.43, fixes and sets on the output shaft of upset motor 3.46
Driving gear 3.49 is equipped with, driving gear is connected by swivel-chain 3.410 with driven gear, upset motor driving hollow rotating shaft rotation
Turn, hollow rotating shaft drives the upset of Dye Ring bucket support, and when cylinder actuating strut acts, cylinder actuating strut can drive central ejector rod
Withstand or shrink in its axial direction of hollow rotating shaft interior edge;
The oblique cutting of agitating paddle 3.3 is arranged in material tank body, and agitating paddle bottom is deeply to the taper tank body of material tank body
Bottom, agitating paddle top are connected with outside agitating paddle motor 3.19.
Referring to accompanying drawing 7-11, the dye barrel 4 is barrel-shaped, and the top opening of dye barrel is provided with flanging 4.1, so that mechanical
Hand can be lifted dye barrel (referring to Figure 10, the manipulator is two claw manipulators, after clamping jaw closure, the blessing face of clamping jaw with
Dye barrel ladle body coordinates, and then manipulator above carries, and the flanging of the top opening of dye barrel withstands manipulator clamping jaw, so that manipulator
Dye barrel can be lifted);Outer wall circumference is provided with a circle gusset 4.2 on the outer wall of dye barrel, the gusset is by annulus top
Plate 4.21 and annulus side plate 4.22 form, and annulus top plate 4.21 and dye barrel are radial parallel, and annulus side plate 4.22 and dye barrel are same
Axle, the top margin of annulus side plate and the excircle of annulus top plate are seamless to be fixedly connected with that (that is, annulus side plate is fixedly connected on annulus top plate
Excircle lower section);The outer wall of annulus top plate inner periphery and dye barrel welds, and connects in annulus top plate and dye barrel outer wall
The place of connecing is provided with multiple leaking hole a, and leaking hole is along annulus top plate inner periphery equidistantly distributed;It is provided with the bottom side of annulus side plate
Multiple recessed poor b (offering multiple grooves in annulus side plate and dye barrel bucket bottom opposite side), groove is along annulus side plate
Circumference equidistantly distributed;Referring to accompanying drawing 11, after dye barrel 4 is put into Dye Ring bucket support 3.41 of clamping switching mechanism 3.4,
The annulus side plate 4.22 of the gusset 4.2 of dye barrel 4 is erected on Dye Ring bucket support 3.41, annulus top plate and dye barrel outer wall
Between leaking hole a and annulus side plate 4.22 and Dye Ring bucket support 3.41 between recessed poor b form drainage channel, so as to keep away
Exempt from the gap that dyestuff is remained between dye barrel 4 and Dye Ring bucket support 3.41.
In use, powder dye automatic weighing system carries out the weighing and burden of dyestuff, the dyestuff prepared is placed on dyestuff
In bucket, and dye barrel is sent at the feeding platform of automatic crawl stereo garage;Then three axle mobile platforms are adjusted, make manipulator
Dye barrel is simultaneously carried on stereoscopic frame by crawl dye barrel, realizes that the solid of dye barrel is put, so as to substantially increase space profit
With rate;
When needing material, three axle mobile platforms are adjusted, the dye barrel for making manipulator crawl be stored on stereoscopic frame, and will
Dye barrel is put into the Dye Ring bucket support in material tank body, the gusset of dye barrel is bridged on Dye Ring bucket support,
Then cover is closed;Then the cylinder action of clamping switching mechanism, cylinder driving central ejector rod ejection, makes central ejector rod extend muscle
Plate upper surface, the gusset for blocking main dye barrel are stuck between Dye Ring bucket support and central ejector rod, afterwards turn over motor action,
Hollow rotating shaft rotation is driven, hollow rotating shaft drives the upset of Dye Ring bucket support, the dyestuff in dye barrel is poured;
Then, the 3rd valve and the 4th valve are opened, is sprayed water by 360 degree of rotary nozzles into material tank body, and open
Agitating paddle, dissolving material is carried out to dyestuff;Pass through the flowmeter being arranged on the external total water inlet/air pipe of 360 degree of rotary nozzles
Total inflow is detected, and passes through the 3rd valve and the 4th Valve controlling inflow;Detected by temperature sensor in batch can body
Water temperature signal, when water temperature is less than setting value, the first valve is opened, and is passed through high-temperature steam into batch can body, lifts water temperature, with up to
To optimization material temperature degree;
After the completion of material, pump is opened, dye solution is discharged from discharging opening, whether dye solution is detected by Tuning Fork Switch
All discharges, dye solution close pump after all discharging;
Then, 360 degree of rotary nozzle water supply water routes (opening the 3rd valve or the 4th valve) are opened and water annulus enters
The second valve (is opened) in water water route, dye barrel and clamping switching mechanism and agitating paddle is carried out using 360 degree of rotary nozzles clear
Wash, cleaned using the inwall of water annulus to material tank body;During cleaning, the driving dyestuff tank upset of clamping switching mechanism is several
It is secondary, while agitating paddle low-speed running, to be cleaned to dye barrel, clamping switching mechanism and agitating paddle comprehensively;During cleaning, water
The drainage channel that leaking hole a and recessed poor b are formed is flowed through, so as to avoid dyestuff from remaining, improves cleaning performance;
After the completion of cleaning (general cleaning 30 seconds, clamping switching mechanism driving dyestuff tank are overturn 3 times), pump is again turned on, will
Rinse water is discharged from discharging opening;
Then, the second valve, the 3rd valve and the 4th valve are closed, opens the 5th valve, by 360 degree of rotary nozzles to
Blow in material tank body, dry up dye barrel, during drying, the upset of clamping switching mechanism driving dyestuff tank is several times;
After the completion of drying, the 5th valve is closed, opens cover, manipulator takes out dye barrel.
Exemplary description is done to the utility model above, it should explanation, do not departing from core of the present utility model
In the case of the heart, any simple deformation, modification or other skilled in the art can not spend creative work etc.
The scope of protection of the utility model is each fallen within replacing.