CN106423754A - Glue dispensing controller and glue outlet air pressure closed-loop control method thereof - Google Patents
Glue dispensing controller and glue outlet air pressure closed-loop control method thereof Download PDFInfo
- Publication number
- CN106423754A CN106423754A CN201610916585.0A CN201610916585A CN106423754A CN 106423754 A CN106423754 A CN 106423754A CN 201610916585 A CN201610916585 A CN 201610916585A CN 106423754 A CN106423754 A CN 106423754A
- Authority
- CN
- China
- Prior art keywords
- air pressure
- baroceptor
- glue
- plastic emitting
- dump valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
- B05C11/1013—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to flow or pressure of liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
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- Coating Apparatus (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a glue dispensing controller and a glue outlet air pressure closed-loop control method thereof. According to the glue dispensing controller, a second air pressure sensor is arranged at the air inlet position of a glue barrel, a control unit controls a discharge valve to be opened and output compressed gas with set working air pressure, meanwhile, a second air pressure sensor collects the working air pressure at the inlet position of the glue barrel, when a cavity of the glue barrel changes, the second air pressure sensor feeds back air pressure signals at the inlet position of the glue barrel, the appropriate valve opening time of duration is worked out by combining the working air pressure collected by the second air pressure sensor and the working air pressure collected by the first air pressure sensor in the glue dispensing controller, and therefore it can be guaranteed that the compressed air energy borne by the liquid level of glue in the glue barrel is consistent every time glue is discharged, and precise controlling over glue outlet is achieved.
Description
Technical field
The present invention relates to a kind of dispensing controller and its plastic emitting pressure closed loop control method.
Background technology
The valve opening persistent period that conventional dispensing controller setting determines, the compressed air of pressure will be determined from air pressure outlet
Output, the built-in glue of extruding glue bucket, after glue is pressurized, the syringe needle from glue bucket end flows out.With the carrying out of dispensing operation, glue
In bucket, glue liquid level is gradually reduced from full glue position, until glue bottom of the barrel.The change of glue liquid level leads to the cavity within glue bucket to hold
Amass and become larger, need more compressed airs to pour in glue bucket and can ensure that the operating pressure setting acts on the built-in glue of glue bucket
Liquid, thus realize the discharge of glue.Because existing control method adopts same setting pressure and valve opening persistent period, because
This, the adhesive liquid quantity fluctuation flowed out from glue bucket distal tip is big and unpredictable.Require more accurate skill particularly with gel quantity
Art field, the plastic emitting precision of this control method is very undesirable.
It is directed to this problem it is proposed that multiple solution in prior art, for example, application number：201080023891.2、
Title：In the patent of liquid constant rate discharge method and device, disclose access volume between air relief valve and dump valve larger
Surge tank, can reduce during plastic emitting controller supply air pressure reduction, but this set is to dispensing precision still
It is uncontrollable, fixing quantity precision for dispensing glue is poor.Application number：201080029406.2, title：The discharge side of fluent material
In the patent of method, device and program, disclose and may move plunger in glue liquid surface upper ends, under the auxiliary of plunger, under glue
Move speed to reach unanimity, but it is true that gel quantity and glue move down between speed and non-linear relation is it is difficult to realize real dispensing
Fixing quantity.
Content of the invention
The technical problem to be solved in the present invention is：In order to overcome the existing dispensing control accuracy can be with glue liquid level in glue bucket
Decline and produce the deficiency of fluctuation, the present invention provides a kind of dispensing controller and its plastic emitting pressure closed loop control method.
The technical solution adopted for the present invention to solve the technical problems is：A kind of dispensing controller, for controlling glue bucket
Gel quantity, including dump valve, the first baroceptor, the second baroceptor and control unit, the gas outlet of described dump valve
Connect the air inlet of glue bucket；Described first baroceptor is arranged at the air inlet of dump valve, and described second sensor connects
At the air inlet of described glue bucket；Described control unit receives the letter of described first baroceptor and the second baroceptor
Number, and when being continued according to the valve opening that the signal of the first baroceptor and the collection of the second baroceptor controls described dump valve
Between.
In order to ensure, after dump valve is opened, to make compressed air stably enter glue bucket, also include air relief valve, described decompression
Valve is connected with dump valve successively gas circuit, and the gas outlet of described air relief valve connects the air inlet of described dump valve, described first air pressure
Sensor is arranged between the gas outlet of air relief valve and the air inlet of dump valve.
For the ease of realizing automatically controlling, described dump valve is electromagnetic valve.
A kind of plastic emitting pressure closed loop control method of described dispensing controller, controls dump valve to beat including control unit
Open, so that compressed air is entered in glue bucket, realize glue bucket plastic emitting；
Also include the anticipation of current desired plastic emitting persistent period：
Air pressure after being opened by the first baroceptor and the second baroceptor Real-time Collection dump valve, control unit root
According to the first baroceptor and the second baroceptor collection air pressure obtain air pressure characteristic of climbing in time, with " when m- gas
On the basis of the integral area of pressure " is consistent with the integral area of " when m- air pressure " of plastic emitting before same bucket glue, anticipation goes out current institute
The plastic emitting persistent period needing；When before same glue bucket described here, plastic emitting refers to plastic emitting before current time for the same glue bucket
Carve.
Finally, the plastic emitting persistent period according to anticipation, control the time point that dump valve cuts out, stop output squeezing air.
Wherein, the pre-judging method of current desired plastic emitting persistent period, specially：
The air pressure being directed to the different adhesive liquid quantities of glue bucket statistics in advance climbs the supplemental characteristic of characteristic, and stores；
Control unit is extracted by the air pressure of the first baroceptor and the second baroceptor Real-time Collection, and extracts current
Air pressure climb characteristic；
Current air pressure is climbed characteristic carry out air pressure and climb characteristic with the air pressure prestoring characteristic parameter data of climbing
Coupling；
Climb in conjunction with air pressure the result of characteristics match, current plastic emitting is calculated in the integral operation mode of " when m- air pressure "
The required plastic emitting persistent period.
The climb supplemental characteristic of characteristic of described air pressure includes slope and the variations in detail of climbing that air pressure climbs.
The duration scope of the first baroceptor and each Real-time Collection of the second baroceptor is more than the response of dump valve
Time and the plastic emitting persistent period no more than setting.The plastic emitting persistent period setting refers to that the plastic emitting that dispensing controller sets continues
Time, it is configured before the work of dispensing controller, is typically to maintain constant in the course of the work, and the plastic emitting of reality continues
Time is usually different, is to be drawn based on the pressure closed loop control method of the present invention.The response time of dump valve refer to from
Controller issues instructions to the time that dump valve is opened.
The invention has the beneficial effects as follows, the dispensing controller of the present invention and its plastic emitting pressure closed loop control method, dispensing control
Device processed is provided with the second baroceptor at the air inlet of glue bucket, and control unit controls opens dump valve output setting work gas
The compressed gas of pressure, the operating air pressure of the second baroceptor collection glue bucket entrance simultaneously, when glue bucket cavity changes, by second
Baroceptor feeds back the air pressure signal of glue bucket porch, and operating air pressure and dispensing in conjunction with the second baroceptor back production control
The operating air pressure of the first baroceptor collection in device, calculates the suitable valve opening persistent period such that it is able to ensure every time
The compressed air energy that in plastic emitting glue bucket, glue liquid level bears is consistent it is achieved that being precisely controlled of plastic emitting.
Brief description
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the dispensing controller optimum embodiment of the present invention.
Fig. 2 is the Row control block diagram of the plastic emitting pressure closed loop control method of the present invention.
Fig. 3 be the present invention plastic emitting pressure closed loop control method in the first baroceptor and the second baroceptor collection
Air pressure change curve chart.
In figure 1, glue bucket, 2, air relief valve, 3, dump valve, the 4, first baroceptor, the 5, second baroceptor, 100, point
Glue controller.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only with
Illustration illustrates the basic structure of the present invention, and therefore it only shows the composition relevant with the present invention.
As shown in figure 1, a kind of dispensing controller 100, for controlling the gel quantity of glue bucket 1, including air relief valve 2, dump valve
3rd, the first baroceptor 4, the second baroceptor 5 and control unit, described air relief valve 2 is connected with dump valve 3 successively gas circuit,
The gas outlet of described air relief valve 2 connects the air inlet of described dump valve 3, and the gas outlet of described dump valve 3 connects the air inlet of glue bucket 1
Mouthful.
Described first baroceptor 4 is arranged between the gas outlet of air relief valve 2 and the air inlet of dump valve 3, and described
Two sensors are connected at the air inlet of described glue bucket 1.In Fig. 1, the arrow of dispensing controller 100 both sides show compressed air
Flow direction.
Described control unit receives the signal of described first baroceptor 4 and the second baroceptor 5, and according to first
The signal of baroceptor 4 and the second baroceptor 5 collection controls the valve opening persistent period of described dump valve 3.
Automatically control for convenience, described dump valve 3 is electromagnetic valve, certainly can also be that other can realize automatically controlling
Valve.
A kind of plastic emitting pressure closed loop control method of described dispensing controller 100, controls dump valve 3 including control unit
Open, so that compressed air is entered in glue bucket 1, realize glue bucket 1 plastic emitting；
Also include the anticipation of current desired plastic emitting persistent period：
Air pressure after being opened by the first baroceptor 4 and the second baroceptor 5 Real-time Collection dump valve 3, controls single
Unit obtains air pressure characteristic of climbing in time according to the air pressure of the first baroceptor 4 and the second baroceptor 5 collection, with
On the basis of the integral area of " when m- air pressure " is consistent with the integral area of " when m- air pressure " of plastic emitting before same bucket glue, anticipation
Go out the current desired plastic emitting persistent period；Before same glue bucket described here, plastic emitting refers to same glue bucket before current time
The plastic emitting moment.
Finally, the plastic emitting persistent period according to anticipation, control the time point that dump valve 3 cuts out, stop output squeezing air.
Wherein, the pre-judging method of current desired plastic emitting persistent period, specially：
The air pressure counting different adhesive liquid quantities for glue bucket 1 in advance climbs the supplemental characteristic of characteristic, and stores；
Control unit extract by the first baroceptor 4 and the second baroceptor 5 Real-time Collection air pressure, and extract work as
Front air pressure climbs characteristic；
Current air pressure is climbed characteristic carry out air pressure and climb characteristic with the air pressure prestoring characteristic parameter data of climbing
Coupling；
Climb in conjunction with air pressure the result of characteristics match, current plastic emitting is calculated in the integral operation mode of " when m- air pressure "
The required plastic emitting persistent period.
The climb supplemental characteristic of characteristic of described air pressure includes slope and the variations in detail of climbing that air pressure climbs.
The duration scope of the first baroceptor 4 and each Real-time Collection of the second baroceptor 5 is more than the sound of dump valve 3
Between seasonable and be not more than the plastic emitting persistent period t setting.The plastic emitting persistent period setting refers to the plastic emitting that dispensing controller sets
Persistent period, it is configured before the work of dispensing controller, is typically to maintain constant in the course of the work, and the plastic emitting of reality
Persistent period is usually different, is to be drawn based on the pressure closed loop control method of the present invention.The response time of dump valve 3 is
Refer to issue instructions to, from controller, the time that dump valve 3 is opened.
As shown in figure 3, before the T0 moment, dump valve 3 is closed, the air pressure at the first baroceptor 4 is work
Make air pressure p；It is normal atmosphere at second baroceptor 5, if the resorption of dispensing controller is in opening, air pressure at this
Will be less than normal atmosphere.Shown in solid in Fig. 3 is the air pressure that the first baroceptor 4 gathers, and dotted line show the second air pressure
The air pressure of sensor 5 collection.
T0 moment dump valve 3 is opened, and operating air pressure p pours in the glue bucket gas circuit of dump valve in Fig. 13 rear end, in air pressure
During climbing, the first baroceptor 4 collects the undershoot of operating air pressure, and the second baroceptor 5 collects glue bucket 1 air inlet
Air pressure at mouthful climbs.In glue bucket 1, the lasting minimizing of remaining adhesive liquid quantity will lead to during each plastic emitting the first baroceptor 4 and the
The gas pressure curve that two baroceptors 5 collect all difference compared with before, and the present invention extracts the minutia of this difference
And the priori data of characteristic of being climbed based on air pressure, with gel quantity unanimously as control targe it is achieved that air pressure truly closes
Ring controls.
If no pressure closed loop controls, close dump valve 3 in the T0+t moment；The present invention is based on pressure closed loop and controls, in T0+t`
Moment closes dump valve.Plastic emitting persistent period t is configured before the work of dispensing controller；But the control being controlled based on pressure closed loop
Method processed is directed to single plastic emitting, and the actual plastic emitting persistent period t` calculating is usually different.If the glue execution from full glue bucket
Plastic emitting operation, with the minimizing of glue amount remaining in glue bucket 1, actual plastic emitting persistent period t` totally assumes the trend being stepped up.
The built-in in advance air pressure being directed in a large number different adhesive liquid quantities in glue bucket of the master control borad of dispensing controller climb the ginseng of characteristic
Number data, can be stored in main control chip in parameter database mode.
During execution plastic emitting, the computational methods of required actual plastic emitting persistent period t` are as follows：
1) the T0 moment, dump valve 3 is opened；
2) the first baroceptor 4 and the second baroceptor 5 started in each Real-time Collection of sensor from the T0 moment
Air pressure acquisition is completed in the range of duration；
3) according to step 2) barometric information that gathers carries out current air pressure and climbs feature extraction；
4) by step 3) air pressure that the extracts supplemental characteristic that characteristic climbed in characteristic parameter data storehouse with air pressure that climbs carries out
Air pressure climbs characteristics match；
5) combine step 4) characteristics match result, current plastic emitting is calculated in the integral operation mode of " when m- air pressure "
Required plastic emitting persistent period t`.
The principle of the dispensing controller of the present invention and its plastic emitting pressure closed loop control method is that control unit controls the row of opening
Go out the compressed gas that valve 3 output sets operating air pressure, the second baroceptor 5 gathers the operating air pressure of glue bucket 1 entrance simultaneously,
During the change of glue bucket 1 cavity, fed back the air pressure signal of glue bucket 1 porch by the second baroceptor 5, in conjunction with the second baroceptor
The operating air pressure of the first baroceptor 4 collection in the operating air pressure of 5 back production and dispensing controller 100, it is suitable to calculate
The valve opening persistent period is such that it is able to ensure that the compressed air energy that in each plastic emitting glue bucket 1, glue liquid level bears is consistent, real
Show being precisely controlled of plastic emitting.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely various change and modification can be carried out in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description it is necessary to determine its technical scope according to right.
Claims (7)
1. a kind of dispensing controller (100), for control glue bucket (1) gel quantity it is characterised in that：
Including dump valve (3), the first baroceptor (4), the second baroceptor (5) and control unit, described dump valve (3)
Gas outlet connect glue bucket (1) air inlet；
Described first baroceptor (4) is arranged at the air inlet of dump valve (3), and described second sensor is connected to described glue
At the air inlet of bucket (1)；
Described control unit receives the signal of described first baroceptor (4) and the second baroceptor (5), and according to first
The signal that baroceptor (4) and the second baroceptor (5) gather controls the valve opening persistent period of described dump valve (3).
2. dispensing controller (100) as claimed in claim 1 it is characterised in that：Also include air relief valve (2), described air relief valve
(2) it is connected with dump valve (3) successively gas circuit, the gas outlet of described air relief valve (2) connects the air inlet of described dump valve (3), institute
State the first baroceptor (4) to be arranged between the gas outlet of air relief valve (2) and the air inlet of dump valve (3).
3. dispensing controller (100) as claimed in claim 1 it is characterised in that：Described dump valve (3) is electromagnetic valve.
4. a kind of plastic emitting pressure closed loop control method of the dispensing controller (100) as any one of claim 1-3, bag
Including control unit controls dump valve (3) to open, and so that compressed air is entered in glue bucket (1), realizes glue bucket (1) plastic emitting；Its feature exists
In：
Also include the anticipation of current desired plastic emitting persistent period：
Air pressure after being opened by the first baroceptor (4) and the second baroceptor (5) Real-time Collection dump valve (3), controls
Unit obtains the air pressure spy that climbs in time according to the air pressure that the first baroceptor (4) and the second baroceptor (5) gather
Property, with the integral area of " when m- air pressure " consistent with the integral area of " when m- air pressure " of plastic emitting before same bucket glue as base
Standard, anticipation goes out the current desired plastic emitting persistent period；
Finally, the plastic emitting persistent period according to anticipation, control the time point that dump valve (3) cuts out, stop output squeezing air.
5. plastic emitting pressure closed loop control method as claimed in claim 4 it is characterised in that：Wherein, current desired plastic emitting is held
The pre-judging method of continuous time, specially：
The air pressure being directed to the different adhesive liquid quantities of glue bucket (1) statistics in advance climbs the supplemental characteristic of characteristic, and stores；
Control unit extract by the first baroceptor (4) and the second baroceptor (5) Real-time Collection air pressure, and extract ought
Front air pressure climbs characteristic；
Current air pressure is climbed characteristic carry out air pressure and climb characteristics match with the air pressure prestoring characteristic parameter data of climbing；
Climb in conjunction with air pressure the result of characteristics match, calculated needed for current plastic emitting in the integral operation mode of " when m- air pressure "
The plastic emitting persistent period.
6. plastic emitting pressure closed loop control method as claimed in claim 5 it is characterised in that：Described air pressure climbs the parameter of characteristic
Data includes slope and the variations in detail of climbing that air pressure climbs.
7. plastic emitting pressure closed loop control method as claimed in claim 4 it is characterised in that：First baroceptor (4) and
The duration scope of each Real-time Collection of two baroceptors (5) is more than the response time of dump valve (3) and is not more than going out of setting
The glue persistent period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916585.0A CN106423754A (en) | 2016-10-20 | 2016-10-20 | Glue dispensing controller and glue outlet air pressure closed-loop control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916585.0A CN106423754A (en) | 2016-10-20 | 2016-10-20 | Glue dispensing controller and glue outlet air pressure closed-loop control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106423754A true CN106423754A (en) | 2017-02-22 |
Family
ID=58176717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610916585.0A Pending CN106423754A (en) | 2016-10-20 | 2016-10-20 | Glue dispensing controller and glue outlet air pressure closed-loop control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106423754A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170426A (en) * | 2019-06-25 | 2019-08-27 | 常州铭赛机器人科技股份有限公司 | Precise glue dispensing controller and its plastic emitting control method |
| WO2020258815A1 (en) * | 2019-06-25 | 2020-12-30 | 常州铭赛机器人科技股份有限公司 | Glue dispensing control apparatus and glue outlet control method therefor |
| CN115155988A (en) * | 2022-09-05 | 2022-10-11 | 常州铭赛机器人科技股份有限公司 | Double-circuit pressure-stabilizing glue supply system and control method thereof |
| CN115254529A (en) * | 2022-07-01 | 2022-11-01 | 江苏高凯精密流体技术股份有限公司 | Dispensing compensation method and system based on time and pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110170426A (en) * | 2019-06-25 | 2019-08-27 | 常州铭赛机器人科技股份有限公司 | Precise glue dispensing controller and its plastic emitting control method |
| WO2020258815A1 (en) * | 2019-06-25 | 2020-12-30 | 常州铭赛机器人科技股份有限公司 | Glue dispensing control apparatus and glue outlet control method therefor |
| CN115254529A (en) * | 2022-07-01 | 2022-11-01 | 江苏高凯精密流体技术股份有限公司 | Dispensing compensation method and system based on time and pressure |
| CN115254529B (en) * | 2022-07-01 | 2024-03-15 | 江苏高凯精密流体技术股份有限公司 | Dispensing compensation method and system based on time and pressure |
| CN115155988A (en) * | 2022-09-05 | 2022-10-11 | 常州铭赛机器人科技股份有限公司 | Double-circuit pressure-stabilizing glue supply system and control method thereof |
| CN115155988B (en) * | 2022-09-05 | 2022-11-29 | 常州铭赛机器人科技股份有限公司 | Double-circuit pressure-stabilizing glue supply system and control method thereof |
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