CN110091428A - The blanking device and method of discharge quantity can be automatically adjusted - Google Patents
The blanking device and method of discharge quantity can be automatically adjusted Download PDFInfo
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- CN110091428A CN110091428A CN201910449773.0A CN201910449773A CN110091428A CN 110091428 A CN110091428 A CN 110091428A CN 201910449773 A CN201910449773 A CN 201910449773A CN 110091428 A CN110091428 A CN 110091428A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000002002 slurry Substances 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 41
- 238000007789 sealing Methods 0.000 claims description 36
- 229920001971 elastomer Polymers 0.000 claims description 32
- 238000005303 weighing Methods 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 20
- 239000000806 elastomer Substances 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 230000003750 conditioning effect Effects 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000003993 interaction Effects 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 230000005856 abnormality Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 238000013507 mapping Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
- B28B13/0235—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities the feed box being provided with agitating means, e.g. stirring vanes to avoid premature setting of the moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
- B28B13/0245—Rotatable feed frames, e.g. horizontally rotated over 90 degrees
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
- B28B13/025—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities the feed box being vibrated, e.g. to promote discharging of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The present invention provides a kind of blanking device and method that can automatically adjust discharge quantity, the device is mounted on the top of the mold delivery track of prefabricated board assembly line, feed bin, hopper, load device, rotary Valve Feeder and the controller being sequentially communicated including rack and from top to bottom, load device is mounted on the rack, feed bin, hopper and rotary Valve Feeder and built-in slurry weight are applied to the load end of load device, and the data-interface of load device is electrically connected to controller.Apparatus of the present invention obtain the discharge quantity in load device one blanking period of on-line monitoring by controller, and the wheel speed of on-line control rotary Valve Feeder realizes the purpose of automatic adjustment discharge quantity；Online sliding filter can eliminate site machinery vibration interference and impulse disturbances, improve the precision of discharge quantity detection, meet on-line monitoring requirement of real-time；The apparatus structure is compact, and high degree of automation can be improved working efficiency and product quality.
Description
Technical field
The invention belongs to prefabricated board manufacturing technology fields, and in particular to one kind can automatically adjust discharge quantity blanking device and
Method.
Background technique
Currently, prefabricated board is used widely in construction, flat-die molding prefabricated board production system is generallyd use
System is produced, which generally includes mold transportation system, cloth system and grid cloth paving system,
In, blanking device is provided in cloth system, blanking device is one of critical component, is entered for controlling slurry according to predetermined amount
In molding die.
For different applications, the thickness of prefabricated board be will be different, when this requires accurately controlling slurry unit
The interior discharge quantity into molding die is to obtain different thicknesses of feed layer, and common practice is by manual adjustment baiting valve at present
Aperture adjust discharge quantity, poor accuracy, and time-consuming and laborious can not achieve on-line operation.
Existing blanking device generallys use baiting valve to control discharge quantity, and baiting valve usually has turnover panel baiting valve and revolution
Two kinds of baiting valve, the discharge quantity of turnover panel baiting valve is also heavy with the slurry itself in feed bin, hopper in addition to related with feed inlet size
Measure it is related, easily occur a discharging period in discharge quantity it is uneven, so that prefabricated board uneven thickness is caused, especially for gel
The very strong material of this mobility of material, flow control is bad, blanking poor accuracy；Since rotary Valve Feeder is turned round by impeller
It realizes constant volume feed, flap valve is better than to the flow control of material, but in existing rotary Valve Feeder, impeller is usually by metal
It is made, in order to not influence wheel rotation, avoids impeller and valve interior wall friction, there are lesser gaps between impeller and valve body.
Above structure causes impeller seals poor, and slurry is easily leaked from gap, influences cutting stock precision；In addition, in actual moving process
In, tiny sandstone is easy in the gap for being stuck in impeller and valve body, causes rotary Valve Feeder increased friction, and impeller is easy to damage, very
It can not extremely operate, influence continuous production.
In addition, cohesiveness higher cementitious material poor for mobility, the slurry in hopper is easy wall built-up, may produce
It gives birth to and expects unsmooth problem.
Therefore, how to make the discharge quantity of prefabricated board blanking device it is more accurate, it is smooth be industry urgent problem.
Summary of the invention
Against the above deficiency, the object of the present invention is to provide a kind of accurate efficient, time saving and energy saving and can automatically adjust down
The blanking device of doses is particularly suitable for the occasion of the higher gel slurry of poor fluidity, viscosity.
The technical scheme adopted by the invention is as follows:
A kind of blanking device automatically adjusting discharge quantity is mounted on the upper of the mold delivery track of prefabricated board assembly line
Just, feed bin (02), the hopper (03), rotary Valve Feeder (01), load device being sequentially communicated including rack (07) and from top to bottom
(05) it is mounted on rack (07) with controller (08), load device (05), feed bin (02), hopper (03) and rotary Valve Feeder
(01) and built-in slurry weight is applied to the load end of load device (05), the data-interface electrical connection of load device (05)
To controller (08).
In above-mentioned blanking device, the load device (05) includes weighing sensor (051), signal conditioning circuit (052)
With signal processing unit (053), weighing sensor (051) is located at the load end of load device (05), and the weight born is produced
Raw pressure conversion is electric signal；Signal conditioning circuit (052) includes filtering and amplifying circuit, for weighing sensor (051)
The electric signal of output amplifies filtering processing；Signal processing unit (053) includes A/D converter and processor, A/D converter
The analog signal that signal conditioning circuit (052) exports is converted into digital signal, processor will be at obtained digital signal
Reason, storage, and it is transmitted to controller (08).
In above-mentioned blanking device, the weighing sensor (051) be resistance strain weighing transducer, including elastomer,
The resistance strain gage and detection circuit being pasted on elastomer, the supporting leg (031) that hopper (03) upper end lateral wall is equipped with are supported on
On the elastomer of weighing sensor (051), elastic buffering pad, resistance-strain are equipped between the elastomer and supporting leg (031)
The deformation that the resistance value of piece follows the resistance strain gage on elastomer changes, and detection circuit is by the resistance value of resistance strain gage
Variation is converted to voltage signal.
In above-mentioned blanking device, the rotary Valve Feeder includes being equipped with the valve body (4) of cavity and being arranged in valve body (4) chamber
Intracorporal mandrel (3), mandrel (3) stretch out the end of valve body (4) and the output axis connection of a motor (9), and motor (9) is electrically connected to
Controller (08)；It is provided in the cavity of valve body (4) impeller (8), the impeller (8) is circumferential in mandrel (3) in spacing setting
Multiple plate blades, the free end of at least two blades is fixed with flexible sealing plate (7), flexible sealing plate (7) and valve body (4)
Cavity inner wall be in close contact.
In above-mentioned blanking device, the flexible sealing plate (7) is made of rubber, the freedom of flexible sealing plate (7) and blade
End cap connects or is bolted；The fixed flexible sealing of a flexible sealing plate (7) or free end is fixed in the free end of each blade
Unlocked flexible sealing plate (7) spacing with blades of the blade of plate (7) and free end is arranged.
In above-mentioned blanking device, the entrance of the hopper (03) is connected with the outlet of feed bin (02) by a partition, every
The on and off of plate is driven by a discharge valve, and the lateral wall of hopper (03) is equipped with vibrator (06)；The feed bin (02)
Top is equipped with feed(raw material)inlet (021) and blender (04), the driving mechanism of blender (04), the driving mechanism of vibrator (06) with
The opening/closing discharge valve of driving partition is respectively electrically connected to controller (08).
In above-mentioned blanking device, the controller (08) include processor and be electrically connected to processor storage unit and
Man-machine interaction unit, in which:
Processor (08) obtains the parameter preset of setting from man-machine interaction unit, and is calculated according to the parameter preset of acquisition
To motor speed V1, the mixing speed V2 of the vibration frequency of vibrator (06) and blender (04) and blanking cycle T 1
Theoretical discharge quantity, the parameter preset include the performance indicator of gel rubber material, thickness of feed layer value TH, molding die specification L ×
K, the dischargeable capacity VL of the travel speed V3 of molding die, blanking cycle T 1, the impeller number N1 of rotary Valve Feeder and material chamber；Or
Person
Running speed V1, the vibrator that processor (08) passes through parameter preset stored in memory and motor (9)
(06) the mapping table acquisition pair of the mixing speed V2 and the theoretical discharge quantity in a blanking period of vibration frequency, blender (04)
The mixing speed V2 and the reason in a blanking period of the vibration frequency of the motor speed V1, vibrator (06) that answer, blender (04)
By discharge quantity.
The present invention also provides the baiting methods that one kind can automatically adjust discharge quantity, using any of the above-described blanking device
It is operated, comprising the following steps:
Step 1, controller (08) obtains the parameter preset of prefabricated board, and blanking process is divided into several blanking cycle Ts 1, and
The control parameter of motor (9) and the theoretical discharge quantity of a blanking cycle T 1, the control are obtained according to the preset parameter value of acquisition
Parameter includes the desired speed range and running speed V1 of motor (9)；The performance indicator of gel rubber material is obtained, and is obtained corresponding
The vibration frequency of vibrator (06) and the mixing speed V2 of blender (04)；
Step 2, controller (08) is former according to mixing speed V2 control blender (04) stirring of the blender (04) of acquisition
Material forms slurry, and opening discharge valve after the completion of stirring enters slurry in hopper (03)；Controller (08) closes blender (04)
And discharge valve, vibrate vibrator (06) according to the vibration frequency of vibrator (06), to increase the mobility of slurry；
Step 3, controller (08) drives the leaf of rotary Valve Feeder (01) according to control parameter control motor (9) of acquisition
Wheel rotation, completes the blanking in a blanking period, while receiving the blanking device in the blanking period of load device (05) feedback
Weight change, i.e. practical discharge quantity in the blanking period, practical discharge quantity that controller (8) will acquire and theoretical discharge quantity into
Row compares, and the wheel speed of rotary Valve Feeder (01) is adjusted according to comparison result, i.e. the running speed V1 of motor (9) is automatic to adjust
Save discharge quantity.
In the above-mentioned baiting method for automatically adjusting discharge quantity, in step 3, controller (08) uses online sliding filter
The weight data obtained to load device (05) is handled, and obtains the practical discharge quantity of blanking cycle T 1；
Practical discharge quantity is compared with theoretical discharge quantity to be referred to: if the difference of practical discharge quantity and theoretical discharge quantity is greater than
Permissible range value (the permissible range value presets range) then adjusts rotary Valve Feeder (01) within the scope of desired speed
The running speed V1 of motor (9), until the difference of obtained practical discharge quantity and theoretical discharge quantity is in permissible range.
In the above-mentioned baiting method for automatically adjusting discharge quantity, steps are as follows for the execution of the online sliding filter:
Step S0 determines load device acquisition weight according to the dischargeable capacity VL of the impeller number N1 of rotary Valve Feeder and material chamber
Measure the sampling period T2 of data；Two queue R1 and R2 (first in first out) are initialized, the length of queue is N, N=INT (T1/
T2), N is natural number；
Step S1 calculates the discharge quantity in blanking period；
Specifically include: load device acquires weight data, and the weight data in queue R1 is successively moved to team's head, will test
Weight data be put into the tail of the queue of queue R1, if team's head data in queue R1 be not it is empty, obtain first complete blanking period
Discharge quantity Δ W=R (1)-R (N)；If team's head data in queue R1 are sky, repeatedly step S1；
Step S2, excluding outlier；
Specifically include: the discharge quantity in queue R2 is successively moved to team's head, and the discharge quantity data Δ W that will acquire is put into queue
The tail of the queue of R2, if team's head data in queue R2 are not empty, and N > 15, then using Lay spy criterion to N number of blanking in queue R2
It measures data and carries out abnormality value removing, if there is discharge quantity data to be removed, repeat step S1 and S2；
If team's head data in queue R2 are not empty, and N≤15, using Grubbs Law to N in queue R2
Discharge quantity data carry out abnormality value removing；If there are discharge quantity data to be removed, step S1 and S2 will be repeated；
If team's head data in queue R2 are sky, step S1 and S2 will be repeated；
Step S3 obtains the mean value for lining up the discharge quantity data in R2Practical blanking as the current blanking period
Amount.
The beneficial effects of the present invention are:
(1) apparatus of the present invention realize constant volume feed using rotary Valve Feeder, by controlling the impeller with valve body flexible connection
Revolving speed controls discharge quantity, monitors weight change of the hopper within a blanking period on-line by load device, and feed back to control
Device processed, the wheel speed of controller on-line control rotary Valve Feeder based on the feedback signal, guarantees discharge quantity in a blanking period
Substantially constant realizes the purpose that discharge quantity is automatically adjusted according to the thickness of feed layer of prefabricated board；
(2) online sliding filter can eliminate live vibrator vibration, the mechanical vibration in rotary Valve Feeder blanking process
Pulse interference signal in the interference signals such as dynamic, noise and detection process improves the precision of discharge quantity detection, meets online prison
Survey the requirement of real-time of discharge quantity；
(3) gel rubber material high for poor fluidity, viscosity, material performance index of the controller according to acquisition, automatic tune
The frequency of vibrator and the mixing speed of blender are saved, the mobility of slurry is increased, in favor of uniform and stable blanking, solves slurry
The unsmooth problem of wall built-up, blanking in hopper.
The apparatus structure is compact, high degree of automation, can save labour turnover, and improves working efficiency and product quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of blanking device of the present invention；
Figure 1A is the enlarged structure schematic diagram of region A in Fig. 1；
Fig. 2 is the electric connection structure block diagram of load device；
Fig. 3 is the structural schematic diagram of rotary Valve Feeder；
Fig. 4 is in Fig. 3 along the sectional view of line B-B interception.
Appended drawing reference indicates in figure are as follows:
01- rotary Valve Feeder；02- feed bin, the feed(raw material)inlet 021-；03- hopper, 031- supporting leg；04- blender；
05- load device, 051- weighing sensor, 052- signal conditioning circuit, 053- signal processing unit, mounting seat
054；
06- vibrator；07- rack；08- controller；
1- feed inlet, 2- end cover, 3- mandrel, 4- valve body, 5- discharge port, 6- access hole, 7- flexible sealing plate, 8- leaf
Wheel, 9- motor.
Specific embodiment
In order to solve, the degree of automation occurred in blanking device in existing prefabricated board production system is low, discharge quantity is uneven
Even, close easily stuck, the easy to damage, discharge quantity of baiting valve controls the problems such as precision is low, and the present invention, which provides one kind, can automatically adjust blanking
The blanking device and method of amount, this method realize constant volume feed using rotary Valve Feeder, by controlling and valve body flexible connection
Wheel speed controls discharge quantity, monitors weight change of the hopper within a blanking period on-line by load device, and feed back
To controller, the wheel speed of controller on-line control rotary Valve Feeder based on the feedback signal guaranteed under a blanking period
Doses substantially constant realizes the purpose that discharge quantity is automatically adjusted according to the thickness of feed layer of prefabricated board.
With reference to embodiments and attached drawing, the blanking device of discharge quantity can be automatically adjusted to the present invention and method carry out it is detailed
Explanation.
Device
Fig. 1 is the topology example of blanking device of the present invention.As shown in Figure 1, the blanking device is mounted on prefabricated board assembly line
Mold delivery track top, including be sequentially communicated from top to bottom feed bin 02, hopper 03, load device 05 and revolution under
Expect valve 01, in which:
As shown in Figure 1, hopper 03 is conical structure wide at the top and narrow at the bottom, the outlet of the entrance and feed bin 02 of hopper 03 passes through
One partition is connected, and the on and off of partition is driven by a discharge valve；The outlet of hopper 03 and the charging of rotary Valve Feeder 01
Mouth 1 is connected；Vibrator 06 is provided on the lateral wall of hopper 03, vibrating by vibrator 06 keeps the slurry in hopper 03 living
Change, slurry blocking, wall built-up phenomenon can be effectively eliminated, solve the problems, such as that 03 discharge of hopper is unsmooth, optimization, it is (logical according to slurry
Often be gel rubber material) performance indicator (including mobility and viscosity), vibrator 06 have different vibration frequencies；One reality
It applies in example, the outlet end of feed bin 02 and the arrival end of hopper 03 weld together, the outlet end of hopper 03 and rotary Valve Feeder 01
Feed inlet end mechanical connection.
Feed bin 02 is cylindrical structure, and top is equipped with feed(raw material)inlet 021 and blender 04, and the bottom of feed bin 02 passes through discharging
Valve is connect with the entrance of hopper 03, and raw material enters in feed bin 02 from the feed(raw material)inlet of feed bin 02 021, at this point, discharge valve is closed, is stirred
Mixing machine 04 and being stirred continuously makes raw material is uniformly mixed in feed bin 02 to form slurry, and slurry enters 03 memory of hopper after opening discharge valve
Storage.
In one embodiment, load device 05 is installed on the supporting leg 031 that 03 upper end lateral wall of hopper is equipped with, and bears feed bin
02, the weight of hopper 03, rotary Valve Feeder 01 and its interior slurry, load device 05 is for weighing bucket 03 in a time
The discharge quantity that (can be set according to demand) in period.
In Figure 1A and embodiment shown in Fig. 2, load device 05 include weighing sensor 051, signal conditioning circuit 052,
Signal processing unit 053 and mounting seat 054, in embodiment as shown in Figure 1A, weighing sensor 051 is fixed on installation bottom
On seat 054, mounting seat 054 is fixed in a rack 07, it is to be understood that mounting seat 054 can also be fixed on other
In mechanism, the present invention is not intended to limit the shape and installation site of mounting seat 054；The load end of load device 05 and hopper 03
Supporting leg 031 connects, and weighing sensor 051 is located at load end, so that feed bin 02, hopper 03 and rotary Valve Feeder 01 and its interior
The weight of slurry is transferred to weighing sensor 051, and the pressure conversion that weighing sensor 051 generates weight is electric signal, claims
The electric signal that sensor 051 exports is retransmitted to be electrically connected through signal conditioning circuit 052 with signal processing unit 053.Implementation shown in Fig. 2
In example, signal conditioning circuit 052 includes filtering and amplifying circuit, for amplifying the electric signal of the output of weighing sensor 051 and filtering
Ripple in electric signal；Signal processing unit 053 includes A/D converter and processor, and A/D converter is used for signal condition electricity
Treated on road 052, and analog signal is converted to digital signal, and obtained digital signal is handled, stored by processor, and is passed
It transports to and controller 08.
In one embodiment, weighing sensor 051 is resistance-type strain gauge load cell, including elastomer (elasticity
Element), the resistance strain gage (conversion element) that is pasted on elastomer and detection circuit, the supporting leg 031 of hopper 03 be supported on title
On the elastomer for retransmitting sensor 051, feed bin 02, hopper 03, rotary Valve Feeder 01 and its interior slurry weight change be applied to
On elastomer, the resistance strain gage deformation being attached on elastomer changes, and the resistance value of resistance strain gage changes, detection
The change in resistance of resistance strain gage is converted to voltage signal output by circuit.Preferably, it is equipped between elastomer and supporting leg 031
Elastic buffering pad, such as rubber pad, for buffering, mitigating the vibration interference generated in weighing process.
Rotary Valve Feeder 01 is mounted on the exit of the hopper 01 for storing slurry, embodiment as shown in Figure 3 and Figure 4
In, which includes valve body 4 and the mandrel 3 that 4 middle part of valve body is arranged in, and 4 top of valve body is equipped with feed inlet 1, lower part
Equipped with discharge port 5, the both ends of valve body 4 are respectively arranged with end cover 2；The inside of valve body 4 is equipped with cavity, and mandrel 3 is set to valve body 4
Cavity in, the both ends of mandrel 3 pass through bearing support on two end covers 2 of valve body 4 respectively, and mandrel 3 stretches out valve body 4
The output axis connection of end and a motor 9, mandrel being rotated by motor 9.
Impeller 8 is provided in the cavity of valve body 4, impeller 8 is that the circumferential multiple plate blades of mandrel 3 are arranged in spacing,
The inner wall of adjacent blades and valve body 4 forms independent material chamber；The free end of at least two blades is fixed with flexible sealing plate 7, soft
Property sealing plate 7 have certain elasticity, be pressed in by own tension on the cavity inner wall of valve body 4, the cavity inner wall with valve body 4
It is in close contact, realizes flexible sealing, prevent from being blocked during impeller operation by sandstone；Preferably, two free end fixations are soft
Property sealing plate 7 blade be symmetrical arranged, during impeller operation, flexible sealing plate 7 can clean the slurry being sticked on 4 inner wall of valve body
Expect that (such as gel rubber material) or sandstone influence work to prevent impeller from being blocked by sandstone.In one embodiment, described soft
Property sealing plate 7 is made of rubber.
In one embodiment, flexible sealing plate 7 is the plate wide with blade, it is preferred that the freedom of flexible sealing plate 7
End is arc-shaped, is matched with 4 inner wall of valve body.
In one embodiment, the fixed flexible sealing of a flexible sealing plate 7 or free end is fixed in the free end of each blade
The blade of plate 7 and the spacing with blades of the unlocked flexible sealing plate 7 in free end are arranged, and eliminate as much as blade free end and valve body 4
Gap between inner wall, during preventing impeller operation, slurry leakage is further ensured that the precision of blanking.
The mode fixed with the free end of blade of flexible sealing plate 7 can be to be socketed or being bolted, for example, when soft
Property sealing plate 7 when being the slab rubber wide with blade, flexible sealing plate 7 using itself elasticity, can be socketed in blade from
The end of flexible sealing plate 7 is spirally connected with blade free end by holding, or by bolt.
In one embodiment, the intracorporal impeller of the chamber for being mounted on valve body 48 and flexible sealing plate 7 are repaired for convenience
Or replacement, the side of valve body 4 is provided with an at least access hole 6, and when rotary Valve Feeder 01 works, access hole 6 passes through a lid button
Close sealing；When impeller 8 and flexible sealing plate 7 need repairing or replace, openable lid.
In one embodiment, the motor 9 that driving mandrel 3 rotates is the decelerating motor with speed-regulating function, can be according to life
The gear for requiring to adjust decelerating motor is produced, band moving mandrel 3 and impeller 8 are rotated according to scheduled speed, and then accurately control control
Discharge quantity.
The course of work of rotary Valve Feeder are as follows: the intracorporal mandrel 3 of chamber that motor driven is located at valve body 4 rotates, and then drives
The impeller 8 being fixed on mandrel 3 rotates, and in rotation process, the flexible sealing plate 7 and valve body 4 of the blade tip of impeller 8 is arranged in
Cavity inner wall be adjacent to, the slurry in hopper 01 from feed inlet 1 enter impeller 8 blade between, when the slurry between blade turn
To lower section discharge port 5, material is fallen into wall board forming mold.(when material viscosity is big, revolving speed is simultaneously in the scheduled range of speeds
Be not the bigger the better, greater than permission maximum speed when, since viscosity is larger, material chamber where material comes when reaching discharge port 5
It is just taken away by impeller not as good as discharging chamber, discharge quantity is less instead；Therefore need to slow down molding die by speed, control simultaneously
The revolving speed of rotary Valve Feeder is within a predetermined range), motor speed is bigger, and corresponding 8 revolving speed of impeller is bigger, blanking in the unit time
Amount is more, that is, realizes the purpose of accurate control blanking.
Rotary Valve Feeder structure of the present invention is simple, easy to use, can accurately control discharge quantity by controlling wheel speed,
The gap between 4 inner wall of blade free end and valve body can be eliminated by the way that flexible sealing plate 7 is arranged in the blade tip of impeller 8,
To avoid sandstone from being stuck between impeller and the cavity inner wall of valve body 4 and lead to impeller failure or can not operate, this time is increased
The service life for turning baiting valve, reduces cost；It is close convenient for impeller 8 and flexibility by the way that access hole 6 is arranged in the side of valve body 4
The maintenance or replacement of sealing plate 7.
In embodiment shown in FIG. 1, blanking device of the present invention further includes a controller 08, the driving mechanism of blender 04,
The data-interface of load device 05, the driving mechanism of vibrator 06 and rotary Valve Feeder 01 motor 9 driving mechanism and drive
The opening/closing discharge valve of dynamic dividing plate is respectively electrically connected to controller 08.Controller 08 is including processor and is electrically connected to processor
Storage unit and man-machine interaction unit, processor obtains the parameter preset of setting from man-machine interaction unit, and according to acquisition
Parameter preset be calculated motor speed V1, the vibration frequency of vibrator 06 and blender 04 mixing speed V2 and one
Theoretical discharge quantity in the blanking period, the parameter preset include gel rubber material performance indicator (including mobility and viscosity),
Thickness of feed layer TH, it specification L × K (length x width) of molding die, the travel speed V3 of molding die, blanking cycle T 1, returns
Turn the impeller number N1 of baiting valve and the dischargeable capacity VL of material chamber；Or pass through parameter preset stored in memory and motor 9
Running speed V1, the vibration frequency of vibrator 06 and the mapping table of mixing speed V2 of blender 04 obtain corresponding motor and turn
The mixing speed V2 of fast V1, the vibration frequency of vibrator 06 and blender 04, above-mentioned mapping table can according to calculate, experiment obtain or
Empirical value obtains；Within a blanking period, processor generates control command and is sent to motor according to the motor speed of acquisition
9 driving mechanism, driving motor 9 are rotated according to corresponding motor speed, meanwhile, load device 05 monitors blanking device weight on-line
Amount changes and feeds back to controller 08, the weight change signal (blanking in a blanking period that controller 08 passes through feedback
Amount), control instruction, the revolving speed of on-line tuning rotary Valve Feeder 01 are generated, and then accurately control discharge quantity, is participated in without artificial,
Improve the degree of automation.In addition, controller 08 is stirred according to scheduled timing control in the blanking device course of work of the present invention
Machine 04, vibrator 06 and discharge valve work.In one embodiment, man-machine interaction unit can be for equipped with human-computer interaction interface
Touch screen.
It is assembled into blanking device of the present invention according to above-mentioned connection relationship with upper-part, which is located at prefabricated board production system
Mold delivery track top, realize according to the thickness of feed layer of prefabricated board automatically adjust discharge quantity purpose.The device uses
Rotary Valve Feeder 01 realizes constant volume feed, controls discharge quantity by controlling the wheel speed being flexibly connected with valve body 4, passes through loading
Device 05 monitors weight change of the blanking device within a blanking period on-line, and feeds back to controller 08, and controller 08
The wheel speed that rotary Valve Feeder 01 is adjusted according to feedback signal, guarantees discharge quantity substantially constant in a blanking period；For stream
The dynamic gel rubber material that property is poor, viscosity is high, controller according to the material performance index of acquisition, automatically adjust the frequency of vibrator 06 with
The mixing speed of blender 04 increases the mobility of slurry, in favor of uniform and stable blanking, solves slurry and hangs in hopper 03
The unsmooth problem of wall, blanking.The apparatus structure is compact, saves labour turnover, and improves working efficiency and product quality.
Method
Blanking device of the present invention monitors the discharge quantity of blanking device on-line using load device 05, anti-online by discharge quantity
It presents and on-line tuning discharge quantity can be achieved.Since the weighing sensor 051 of load device 05 is in measurement process, it is vibrated device 06
The disturbing influence that material generates in the mechanical oscillation of generation and blanking process, the accuracy for the discharge quantity that load device 5 detects
It is affected；In addition, the material in rotary Valve Feeder 01 is located in the independent material chamber formed by adjacent blades, valve interior wall, when
When material chamber goes to the discharge port 5 of rotary Valve Feeder 01, material could be fallen from discharge port 5, when discharge port 5 is smaller (for example, being only capable of
Cover a part of the outlet of a material chamber) when, the blanking of rotary Valve Feeder 01 may be it is discontinuous, load device 05 is continuous
It when sampling, may cause that error is larger, or even invalid data (period of non-blanking collected data) can be collected, at this time
To discharge quantity data be also it is invalid, therefore, in order to improve discharge quantity on-line monitoring accuracy, rotary Valve Feeder 01 go out
5 optimization design of material mouth is at least to cover the outlet of a complete material chamber, it is preferred that discharge port 5 covers the discharge port of two material chambers.
At this point, blanking process is substantially uniform continuous under same revolving speed.
Based on above-mentioned blanking device, the present invention provides a kind of baiting method that can automatically adjust discharge quantity, including following step
It is rapid:
Step 1, controller 08 obtains the parameter preset of prefabricated board, and obtains motor 9 according to the preset parameter value of acquisition
Theoretical discharge quantity in control parameter and a blanking period, the control parameter include the desired speed range and operating of motor 9
Speed V1；The performance indicator (such as mobile performance and viscosity) of gel rubber material is obtained, and obtains the vibration of corresponding vibrator 06
The mixing speed V2 of frequency and blender 04.
Obtain the control parameter of thickness of feed layer value and motor 9 and the performance indicator data and vibrator 06 of gel rubber material
Vibration frequency, the mixing speed of blender 04, can be manually entered, can also be passed through by the man-machine interaction unit of controller 08
The mapping table of running speed V1 and the performance of gel rubber material of the thickness of feed layer TH1 being pre-stored in storage unit and motor 9 refer to
Mark obtains automatically with the vibration frequency of vibrator 06, the mapping table of the mixing speed V2 of blender 04, in general, different performance is solidifying
The desired speed range (i.e. the range of speeds of rotary Valve Feeder 01) of glue material, corresponding motor 9 is different, the operating speed of motor 9
Degree V1 is generally defined within the scope of desired speed.
Step 2, controller 08 stirs raw material according to the mixing speed V2 control blender 04 of the blender 04 of acquisition and is formed
Slurry, opening discharge valve after the completion of stirring enters slurry in hopper 03；Controller 08 closes blender 04 and discharge valve, presses
Vibrate vibrator 06 according to the vibration frequency of vibrator 06, to increase the mobility of slurry.
Step 3, controller 08 drives the impeller of rotary Valve Feeder 01 to rotate according to the control parameter control motor 9 of acquisition,
While receiving the blanking device weight change in a blanking period of the feedback of load device 05, i.e., under the reality in one blanking period
Doses, the practical discharge quantity that controller 8 will acquire are compared with theoretical discharge quantity, adjust rotary Valve Feeder according to comparison result
01 wheel speed (i.e. the running speed V1 of motor 9).
Controller 08 generates the driving mechanism that control command is sent to motor 9 according to the control parameter of the motor 9 of acquisition,
It controls motor 9 and drives impeller rotation；03 weight of hopper that controller 08 receives the blanking period that load device 05 is fed back becomes
Change, when the discharge quantity in the unit blanking period is less than preset value, within the scope of desired speed, increases the leaf of rotary Valve Feeder 01
Wheel speed；When the discharge quantity in the blanking period is greater than preset value, within the scope of desired speed, reduce the leaf of rotary Valve Feeder 01
Wheel speed.
Wherein, in step 3, controller 08 carries out the weight data that load device 05 obtains using online sliding filter
Processing, obtains the practical discharge quantity in a blanking period.
Practical discharge quantity is compared with theoretical discharge quantity to be referred to: if the difference of practical discharge quantity and theoretical discharge quantity is greater than
Permissible range value (the permissible range value presets range) then adjusts the electricity of rotary Valve Feeder 01 within the scope of desired speed
The running speed V1 of machine 9, until the difference of obtained practical discharge quantity and theoretical discharge quantity is in permissible range.
In above-mentioned steps, online sliding filter implementation procedure is as follows:
Step S0 determines that load device 05 is adopted according to the dischargeable capacity VL of the impeller number N1 of rotary Valve Feeder and material chamber
Collect the sampling period T2 of weight data；Two queue R1 and R2 (first in first out) are initialized, the length of queue is N, N=INT
(T1/T2) (N is natural number).
Step S1 calculates the discharge quantity in blanking period.
Specifically include: load device 05 acquires weight data, and the weight data in queue R1 is successively moved to team's head, will examine
The weight data of survey is put into the tail of the queue of queue R1, if team's head data in queue R1 are not empty, the complete blanking week of acquisition first
Discharge quantity Δ W=R (1)-R (N) of phase；If team's head data in queue R1 are sky, repeatedly step S1.
Because the weight that load device 05 measures includes the material in feed bin 02, hopper 03, rotary Valve Feeder 01 and hopper 03
Slurry, weight of discharge quantity of the weight change sampled every time for the weight of measurement or in a cycle relative to measurement
For amount, accounting also very little is unfavorable for signal processing；By calculate the blanking period discharge quantity, the discharge quantity to abnormal blanking,
Vibration influence is more sensitive, by filtering processing, can be improved discharge quantity detection accuracy.
Step S2, excluding outlier.
Specifically include: the discharge quantity in queue R2 is successively moved to team's head, and the discharge quantity data Δ W that will acquire is put into queue
The tail of the queue of R2, if team's head data in queue R2 are not empty, and N > 15, then using Lay spy criterion to N number of blanking in queue R2
It measures data and carries out abnormality value removing, if there is discharge quantity data to be removed, repeat step S1 and S2；
If team's head data in queue R2 are not empty, and N≤15, using Grubbs Law to N in queue R2
Discharge quantity data carry out abnormality value removing；If there are discharge quantity data to be removed, step S1 and S2 will be repeated；
If team's head data in queue R2 are sky, step S1 and S2 will be repeated.
Step S3 obtains the mean value for lining up the discharge quantity data in R2Practical blanking as the current blanking period
Amount.
The present invention is different according to the sample frequency in the blanking period, is combined using Lay spy criterion and Grubbs Law
Abnormality value removing algorithm, when eliminating influence, i.e. sample frequency larger (N larger) of the exceptional value to smothing filtering precision, use
Better simply Lay spy criterion excluding outlier saves computing resource, meets requirement of real-time；When sample frequency smaller (N is smaller),
Using the more specific Grubbs Law of probability meaning, regular failure is prevented；Online sliding filter can eliminate scene
In the interference signals such as mechanical oscillation, noise in the vibration of vibrator 06,01 blanking process of rotary Valve Feeder and detection process
Pulse interference signal improves the precision of discharge quantity detection, meets the requirement of real-time of on-line monitoring discharge quantity.
It will be appreciated by those skilled in the art that these embodiments are merely to illustrate the present invention without limiting model of the invention
It encloses, the various equivalent variations and modification made to the present invention belong to the disclosure of invention.
Claims (10)
1. one kind can automatically adjust the blanking device of discharge quantity, it is mounted on the top of the mold delivery track of prefabricated board assembly line,
Feed bin (02), hopper (03) and the rotary Valve Feeder (01) being sequentially communicated including rack (07) and from top to bottom, which is characterized in that
It further include load device (05) and controller (08), load device (05) is mounted on rack (07), feed bin (02), hopper (03)
The load end of load device (05), the number of load device (05) are applied to rotary Valve Feeder (01) and built-in slurry weight
Controller (08) is electrically connected to according to interface.
2. blanking device according to claim 1, which is characterized in that the load device (05) includes weighing sensor
(051), signal conditioning circuit (052) and signal processing unit (053), weighing sensor (051) are located at load device (05)
Load end, the pressure conversion that the weight born is generated are electric signal；Signal conditioning circuit (052) includes amplification filtered electrical
Road, the electric signal for exporting to weighing sensor (051) amplify filtering processing；Signal processing unit (053) includes A/D
The analog signal that signal conditioning circuit (052) exports is converted to digital signal by converter and processor, A/D converter, processing
Obtained digital signal is handled, is stored by device, and is transmitted to controller (08).
3. blanking device according to claim 2, which is characterized in that the weighing sensor (051) is resistance-strain type
Weighing sensor, including elastomer, the resistance strain gage being pasted on elastomer and detection circuit, hopper (03) upper end lateral wall
The supporting leg (031) being equipped with is supported on the elastomer of weighing sensor (051), and the resistance value of resistance strain gage follows in elastomer
On the deformation of resistance strain gage change, the change in resistance of resistance strain gage is converted to voltage signal by detection circuit.
4. blanking device according to any one of claims 1 to 3, which is characterized in that the rotary Valve Feeder includes being equipped with
In the intracorporal mandrel of valve body (4) chamber (3), mandrel (3) stretches out end and a motor of valve body (4) for the valve body (4) of cavity and setting
(9) output axis connection, motor (9) are electrically connected to controller (08)；Impeller (8), the leaf are provided in the cavity of valve body (4)
Taking turns (8) is multiple plate blades in spacing setting in mandrel (3) circumferential direction, and the free end fixation of at least two blades is flexible close
Sealing plate (7), the cavity inner wall close contact of flexible sealing plate (7) and valve body (4).
5. blanking device according to claim 4, which is characterized in that the flexible sealing plate (7) is made of rubber, flexible
Sealing plate (7) and the free end of blade are socketed or are bolted；A flexible sealing plate (7) is fixed in the free end of each blade
Or unlocked flexible sealing plate (7) spacing with blades of blade and free end of free end fixed flexible sealing plate (7) is arranged.
6. blanking device according to any one of claims 1 to 5, which is characterized in that the entrance and material of the hopper (03)
The outlet in storehouse (02) is connected by a partition, and the on and off of partition is driven by a discharge valve, the lateral wall of hopper (03)
It is equipped with vibrator (06)；The top of the feed bin (02) is equipped with feed(raw material)inlet (021) and blender (04), blender (04)
Driving mechanism, the driving mechanism of vibrator (06) and the discharge valve for driving partition opening/closing are respectively electrically connected to controller (08).
7. blanking device according to claim 6, which is characterized in that the controller (08) includes processor and is electrically connected
It is connected to the storage unit and man-machine interaction unit of processor, in which:
Processor (08) obtains the parameter preset of setting from man-machine interaction unit, and electricity is calculated according to the parameter preset of acquisition
The theory of machine revolving speed V1, the mixing speed V2 of the vibration frequency of vibrator (06) and blender (04) and a blanking cycle T 1
Discharge quantity, the parameter preset include the performance indicator of gel rubber material, thickness of feed layer value TH, molding die specification L × K, at
Pattern tool travel speed V3, blanking cycle T 1, rotary Valve Feeder impeller number N1 and expect chamber dischargeable capacity VL；Or
Processor (08) passes through the running speed V1 of parameter preset stored in memory and motor (9), vibrator (06)
The mapping table of the theoretical discharge quantity of vibration frequency, the mixing speed V2 of blender (04) and a blanking period obtains corresponding electricity
The theoretical blanking of machine revolving speed V1, the vibration frequency of vibrator (06), the mixing speed V2 of blender (04) and a blanking period
Amount.
8. one kind can automatically adjust the baiting method of discharge quantity, carried out using the described in any item blanking devices of claim 1 to 7
Operation, comprising the following steps:
Step 1, controller (08) obtains the parameter preset of prefabricated board, and blanking process is divided into several blanking cycle Ts 1, and according to
The preset parameter value of acquisition obtains the control parameter of motor (9) and the theoretical discharge quantity of a blanking cycle T 1, the control parameter
Desired speed range and running speed V1 including motor (9)；The performance indicator of gel rubber material is obtained, and obtains corresponding vibration
The vibration frequency of device (06) and the mixing speed V2 of blender (04)；
Step 2, controller (08) stirs raw material shape according to mixing speed V2 control blender (04) of the blender (04) of acquisition
At slurry, opening discharge valve after the completion of stirring enters slurry in hopper (03)；Controller (08) is closed blender (04) and is unloaded
Expect valve, vibrates vibrator (06) according to the vibration frequency of vibrator (06), to increase the mobility of slurry；
Step 3, controller (08) is revolved according to the impeller of control parameter control motor (9) driving rotary Valve Feeder (01) of acquisition
Turn, complete the blanking in a blanking period, while receiving the blanking device weight in the blanking period of load device (05) feedback
Variation, i.e. practical discharge quantity in the blanking period, the practical discharge quantity that controller (8) will acquire are compared with theoretical discharge quantity
Compared with according to the wheel speed of comparison result adjusting rotary Valve Feeder (01), i.e. the running speed V1 of motor (9), under automatic adjustment
Doses.
9. the baiting method according to claim 8 for automatically adjusting discharge quantity, which is characterized in that in step 3, controller
(08) it is handled using the weight data that online sliding filter obtains load device (05), obtains the reality of blanking cycle T 1
Border discharge quantity；
Practical discharge quantity is compared with theoretical discharge quantity to be referred to: if the difference of practical discharge quantity and theoretical discharge quantity is greater than and allows
Value range (the permissible range value presets range) then adjusts the motor of rotary Valve Feeder (01) within the scope of desired speed
(9) running speed V1, until the difference of obtained practical discharge quantity and theoretical discharge quantity is in permissible range.
10. the baiting method according to claim 9 for automatically adjusting discharge quantity, which is characterized in that the online sliding
Steps are as follows for the execution of filter:
Step S0 determines that load device acquires weight number according to the dischargeable capacity VL of the impeller number N1 of rotary Valve Feeder and material chamber
According to sampling period T2；Two queue R1 and R2 (first in first out) are initialized, the length of queue is N, and N=INT (T1/T2), N are
Natural number；
Step S1 calculates the discharge quantity in blanking period；
Specifically include: load device acquires weight data, and the weight data in queue R1 is successively moved to team's head, the weight that will test
Amount data are put into the tail of the queue of queue R1, if team's head data in queue R1 are not sky, obtain under first complete blanking period
Doses Δ W=R (1)-R (N)；If team's head data in queue R1 are sky, repeatedly step S1；
Step S2, excluding outlier；
Specifically include: the discharge quantity in queue R2 is successively moved to team's head, and the discharge quantity data Δ W that will acquire is put into queue R2's
Tail of the queue, if team's head data in queue R2 are not empty, and N > 15, then using Lay spy criterion to N number of discharge quantity number in queue R2
According to abnormality value removing is carried out, if there are discharge quantity data to be removed, step S1 and S2 are repeated；
If team's head data in queue R2 are not empty, and N≤15, using Grubbs Law to N number of blanking in queue R2
It measures data and carries out abnormality value removing；If there are discharge quantity data to be removed, step S1 and S2 will be repeated；
If team's head data in queue R2 are sky, step S1 and S2 will be repeated；
Step S3 obtains the mean value for lining up the discharge quantity data in R2Practical discharge quantity as the current blanking period.
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| CN117842427A (en) * | 2024-03-08 | 2024-04-09 | 常州百利锂电智慧工厂有限公司 | Precise weighing system and weighing method thereof |
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| CN110091428B (en) | 2024-05-03 |
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