CN114669442A - Large-specific-gravity glue solution dispensing device based on driving air pressure compensation and control method - Google Patents
Large-specific-gravity glue solution dispensing device based on driving air pressure compensation and control method Download PDFInfo
- Publication number
- CN114669442A CN114669442A CN202210269489.7A CN202210269489A CN114669442A CN 114669442 A CN114669442 A CN 114669442A CN 202210269489 A CN202210269489 A CN 202210269489A CN 114669442 A CN114669442 A CN 114669442A
- Authority
- CN
- China
- Prior art keywords
- dispensing
- pressure
- air
- glue
- glue solution
- 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.)
- Pending
Links
- 239000003292 glue Substances 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 230000008569 process Effects 0.000 claims description 20
- 230000033228 biological regulation Effects 0.000 claims description 18
- 230000005484 gravity Effects 0.000 claims description 13
- 238000011897 real-time detection Methods 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 20
- 230000009467 reduction Effects 0.000 description 10
- 238000003860 storage Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
-
- 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
-
- 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
- B05C11/1026—Valves
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a large-specific-gravity glue solution dispensing device based on driving air pressure compensation and a control method, wherein the large-specific-gravity glue solution dispensing device comprises a glue dispensing pipe, the lower end of the glue dispensing pipe is connected with a glue dispensing pipeline, and a pressure detection sensor is arranged at the tail end of the glue dispensing pipeline close to a glue dispensing needle head; the upper end and the air supply system of some glue pipes are connected, air supply system is used for providing the compressed air after the compensation pressure regulating to some glue intraductal according to the pressure value that pressure detection sensor detected, guarantees that pressure detection sensor department glue solution pressure keeps invariable to the glue solution in the drive some glue pipes is extruded and is glued. The pressure detection sensor arranged at the dispensing hose close to the dispensing needle head is used for detecting the pressure of the glue solution in real time, the air supply system is used for compensating and adjusting the driving air pressure, and closed-loop control taking the glue solution pressure at the dispensing tail end as a control target is formed through pressure detection based on the dispensing tail end, so that the glue solution pressure close to the dispensing needle head is kept constant during dispensing.
Description
Technical Field
The invention relates to the technical field of quantitative glue dispensing, in particular to a large-specific-gravity glue solution dispensing device based on driving air pressure compensation and a control method.
Background
In the quantitative dispensing application of the large-specific-gravity glue solution, taking red lead paint as an example, in the dispensing process, along with the continuous consumption of the glue solution, the liquid level of the glue solution in the dispensing storage tube can gradually decrease; when the timing dispensing control is adopted, along with the reduction of the liquid level of the glue solution, the pressure of the dispensing outlet end is continuously reduced, so that the glue outlet amount is also remarkably reduced, the consistency of the glue outlet amount before and after the whole dispensing process is poor, the high-precision quantitative dispensing application requirement cannot be met, and the product quality is influenced.
The mode of controlling the liquid level in the dispensing storage tube by adopting a glue solution compensation strategy can avoid the reduction of the liquid level in the dispensing storage tube and the loss of dispensing precision caused by the reduction in the liquid level in the dispensing storage tube in the production process. However, the glue supplementing system is loaded and has long glue supplementing time, so that the glue supplementing system is not suitable for requirements of rapid and continuous production, and meanwhile, when the production is close to the end or the production is less, the glue solution in the current glue dispensing tube is enough, and the glue dispensing precision cannot be ensured by adopting a glue solution supplementing mode when the glue solution does not need to be supplemented.
In view of this, the present application is specifically proposed.
Disclosure of Invention
The invention aims to solve the technical problem that the glue solution compensation mode is adopted to avoid the problem of glue dispensing precision loss caused by the reduction of the pressure at the tail end of glue dispensing due to the reduction of the liquid level in a glue dispensing storage tube, but the method is not suitable for quick continuous production or when the glue solution is not required to be supplemented to the glue dispensing storage tube, and aims to provide a large-proportion glue solution dispensing device based on driving air pressure compensation and a control method.
The invention is realized by the following technical scheme:
a large-specific-gravity glue solution dispensing device based on driving air pressure compensation comprises a glue dispensing pipe, wherein the lower end of the glue dispensing pipe is connected with a glue dispensing pipeline, and a pressure detection sensor is arranged at the tail end of the glue dispensing pipeline close to a glue dispensing needle head; the upper end and the air supply system of some glue pipes are connected, air supply system is used for providing the compressed air after the compensation pressure regulating to some glue intraductal according to the pressure value that pressure detection sensor detected, guarantees that pressure detection sensor department glue solution pressure keeps invariable to the glue solution in the drive some glue pipes is extruded and is glued.
The pressure detection sensor is arranged on the dispensing pipeline close to the dispensing needle head, so that the pressure of the glue solution at the dispensing needle head can be detected in real time, when the detected pressure is smaller than a set value, the pressure regulating valve is controlled to carry out rapid and continuous pressure regulation, and the compressed air is compensated and regulated in real time, so that the pressure of the glue solution at the dispensing end of the dispensing pipeline is always kept consistent during each dispensing, and the consistency of the glue output amount in the dispensing process is ensured; the pressure detection sensor detects the pressure of the glue solution in real time and can provide accurate data for adjusting the driving pressure of the air supply system.
In another specific embodiment, the air supply system comprises a pressure regulating valve, a driving air pipe and a main air inlet pipe, compressed air enters the main air inlet pipe, pressure regulation is carried out on the compressed air through the pressure regulating valve, and the compressed air after compensation and pressure regulation finally enters a cavity above the glue dispensing pipe through the driving air pipe to drive glue liquid to be extruded out of the glue dispensing pipe.
In another specific embodiment, the air supply system further comprises an air supply valve and a pressure-regulating rear air pipe, compressed air enters the main air inlet pipe, pressure regulation is carried out on the compressed air through a pressure regulating valve, and compressed air after compensation and pressure regulation enters the air supply valve through the pressure-regulating rear air pipe and then finally enters the upper cavity in the glue dispensing pipe through a driving air pipe to drive glue liquid to be extruded out for dispensing.
In another specific embodiment, the air supply valve adopts a two-position three-way valve, a main air inlet, a driving port and an exhaust port are arranged on the air supply valve, the driving port is connected with a driving air pipe, the main air inlet is connected with a pressure-regulated air pipe, the driving port is communicated with the main air inlet during dispensing, the air supply valve is reversed during non-dispensing, and the driving port is communicated with the exhaust port.
When dispensing, the air supply valve is reversed, the driving port is communicated with the main air inlet, compressed air which is subjected to real-time compensation and pressure regulation based on the pressure real-time detection of the dispensing end of the dispensing pipeline enters the driving air pipe through the main air inlet and the driving port after pressure regulation, and finally enters an upper cavity of the rubber pipe to drive glue liquid to be extruded out for dispensing; when dispensing is not performed, the air supply valve is reversed, the driving port is communicated with the air exhaust port, and the cavity above the timing rubber tube is communicated with the atmosphere through the driving air tube, the driving port and the air exhaust port.
When dispensing, 0.7MPa compressed air filtered by pressure stabilization enters a pressure regulating valve and a pressure regulating rear air pipe which are connected in front and back through a main air inlet pipe, and enters an air supply valve and a subsequent air passage; the pressure regulating valve can rapidly and continuously regulate the pressure of the compressed air, and the compressed air is compensated and regulated in real time based on the real-time detection of the pressure at the dispensing tail end of the dispensing pipeline, so that the pressure at the dispensing tail end of the dispensing pipeline is always kept consistent when dispensing is performed at each time, and the consistency of the dispensing quantity in the dispensing process is finally ensured.
In another specific embodiment, the dispensing pipeline further comprises a dispensing hose, the lower end of the dispensing tube is connected with the dispensing needle through the dispensing hose, and the pressure detection sensor is connected to the dispensing hose near the dispensing needle.
In another specific embodiment, the dispensing hose is made of a transparent plastic hose.
The invention also provides a large-specific gravity glue solution dispensing control method based on driving air pressure compensation, which comprises the following steps: 1) before dispensing, the pressure of the dispensing tail end of the dispensing pipeline is fed back according to the real-time detection of the pressure detection sensor, and the introduced compressed air is regulated by using the pressure regulating valve until the pressure value of the glue solution detected by the pressure detection sensor in real time reaches a set value; 2) in the dispensing process, the regulating valve is controlled to regulate the air pressure of the compressed air in real time, the compensated compressed air passes through the pressure-regulated air pipe, the main air inlet, the driving port and the driving air pipe to enter the rubber pipe, the glue solution in the dispensing pipe is driven to be dispensed until the dispensing time is finished, and the dispensing is finished; 3) and (5) repeating the step 1) to the step 2) to control the dispensing process.
In the step 1), when dispensing is not performed, the driving port is communicated with the exhaust port.
In the step 2), during dispensing, the air supply valve is reversed, and the driving port is communicated with the main air inlet.
According to the dispensing control method provided by the invention, during dispensing, the pressure at the dispensing tail end of the dispensing pipeline is fed back according to the real-time detection of the pressure detection sensor, the pressure regulating valve is regulated, the loss of the pressure at the dispensing tail end caused by the reduction of the liquid level of the glue solution in the dispensing pipeline is accurately compensated in a compensation driving air pressure mode, and the pressure of the glue solution at the dispensing tail end is kept constant after compensation control by the driving air pressure; in addition, in the whole dispensing process, the pressure at the tail end of the dispensing is controlled by adopting a closed-loop control mode based on real-time detection feedback of a pressure detection sensor; before dispensing, a feed-forward control and closed-loop control composite control mode is adopted to adjust the pressure regulating valve; in the dispensing process, the pressure regulating valve is regulated in a closed-loop control mode, so that the pressure of the glue solution close to the dispensing needle head is kept constant during dispensing, the glue solution compensation on the glue solution in the dispensing tube is not needed, and the method is suitable for rapid and uninterrupted continuous dispensing production.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. According to the large-specific gravity glue solution dispensing device based on driving air pressure compensation, the pressure of glue solution is detected in real time through the pressure detection sensor arranged at the glue dispensing hose close to the position of the glue dispensing needle head, the driving air pressure is compensated and adjusted through the air supply system, closed-loop control taking the pressure of the glue solution at the tail end of glue dispensing as a control target is formed through pressure detection based on the tail end of glue dispensing, and the pressure of the glue solution close to the position of the glue dispensing needle head is kept constant during glue dispensing;
2. according to the drive air pressure compensation-based large-specific gravity glue solution dispensing control method provided by the embodiment of the invention, during dispensing, the pressure at the tail end of dispensing of a dispensing pipeline is detected in real time according to the pressure detection sensor, the pressure regulating valve is regulated, and the loss of the pressure at the tail end of dispensing caused by the reduction of the liquid level of the glue solution in the dispensing pipeline is accurately compensated in a compensation drive air pressure mode, so that the pressure of the glue solution at the tail end of dispensing after the drive air pressure compensation control is kept constant.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art may also derive other related drawings based on these drawings without inventive effort.
Fig. 1 is a schematic structural view of a dispensing device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an air supply system according to an embodiment of the present invention.
Reference numbers and corresponding part names in the figures:
2-air supply system, 21-air supply valve, 22-air outlet, 23-main air inlet, 24-driving port, 25-driving air pipe, 26-main air inlet pipe, 27-pressure regulating valve, 28-pressure regulating air pipe, 3-dispensing cylinder, 4-dispensing pipeline, 41-dispensing hose, 42-pressure detecting sensor and 43-dispensing needle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures and methods have not been described in detail in order to avoid obscuring the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
As shown in fig. 1, the large specific gravity glue solution dispensing device based on driving air pressure compensation comprises an air supply system 2, a dispensing pipe 3 and a dispensing pipeline 4, dispensing is completed by air pressure driving, the driving air pressure is subjected to closed-loop control according to the pressure of the dispensing end of the dispensing pipeline 4 during dispensing, the pressure of the dispensing end of the dispensing pipeline 4 in the dispensing process of the glue solution of the whole dispensing pipe is always kept consistent, the consistency of the glue output amount in the dispensing process is finally ensured, and high-precision quantitative dispensing is realized.
According to the invention, the pressure detection sensor is arranged on the dispensing pipeline close to the dispensing needle head, so that the pressure of the glue solution at the dispensing needle head can be detected in real time, when the detected pressure is smaller than a set value, the pressure regulating valve 27 is controlled to carry out rapid and continuous pressure regulation, and the compressed air is compensated and regulated in real time, so that the pressure of the glue solution at the dispensing end of the dispensing pipeline is always kept consistent during each dispensing, and the consistency of the glue output amount in the dispensing process is ensured; the pressure detection sensor detects the pressure of the glue solution in real time and can provide accurate data for adjusting the driving pressure of the air supply system.
The dispensing tube 3 adopts a closed straight cylinder structure. The lower end of the dispensing tube 3 is connected with a dispensing pipeline 4, and the dispensing pipeline 4 is used for coating the glue solution on a target workpiece; the upper end of the dispensing tube 3 is connected with an air supply system 2, and the air supply system 2 provides driving air pressure to realize dispensing action.
The air supply system 2 comprises an air supply valve 21, a driving air pipe 25, a main air inlet pipe 26, a pressure regulating valve 27, a pressure-regulated air pipe 28 and the like, and is used for supplying driving air pressure to the dispensing pipe 3 during dispensing; the driving air pressure is adjusted to compensate, so that the pressure of the dispensing end of the dispensing pipeline 4 in the dispensing process of the rubber liquid of the rubber tube at the whole point is always kept consistent, the consistency of the glue output amount in the dispensing process is finally ensured, and high-precision quantitative dispensing is realized. The air supply valve 21 adopts a two-position three-way valve, the pressure-regulated air pipe 28 is connected with the main air inlet 23, the air outlet 22 is directly connected with the atmosphere, and the driving port 24 is connected with the driving air pipe 25. During dispensing, the air supply valve 21 is reversed, the driving port 24 is communicated with the main air inlet 23, compressed air subjected to real-time compensation and pressure regulation based on the real-time detection of the dispensing end pressure of the dispensing pipeline 4 enters the driving air pipe 25 through the main air inlet 23 and the driving port 24 after pressure regulation, and finally enters the upper cavity of the dispensing pipe 3 to drive glue liquid to be extruded out for dispensing. When dispensing is not performed, the air supply valve 21 is reversed, the driving port 24 is communicated with the exhaust port 22, and the upper cavity of the dispensing tube 3 is communicated with the atmosphere through the driving air tube 25, the driving port 24 and the exhaust port 22.
During dispensing, the air supply valve is reversed, the driving port is communicated with the main air inlet, compressed air subjected to real-time compensation and pressure regulation based on the pressure real-time detection of the dispensing end of the dispensing pipeline enters the driving air pipe through the main air inlet and the driving port after pressure regulation, and finally enters an upper cavity of the rubber pipe to drive glue liquid to be extruded out for dispensing; when dispensing is not performed, the air supply valve is reversed, the driving port is communicated with the exhaust port, and the cavity above the timing rubber tube is communicated with the atmosphere through the driving air pipe, the driving port and the exhaust port.
The pressure detection sensor arranged at the dispensing hose close to the dispensing needle head is used for detecting the pressure of the glue solution in real time, the air supply system is used for compensating and adjusting the driving air pressure, and closed-loop control taking the glue solution pressure at the dispensing tail end as a control target is formed through pressure detection based on the dispensing tail end, so that the glue solution pressure close to the dispensing needle head is kept constant during dispensing; during dispensing, 0.7MPa compressed air subjected to pressure stabilization filtration enters a pressure regulating valve and a pressure-regulated air pipe which are connected in front and back through a main air inlet pipe, and enters an air supply valve and a subsequent air circuit; the pressure regulating valve can be used for quickly and continuously regulating the pressure of the compressed air, and the pressure of the dispensing end of the dispensing pipeline is real-time detected to compensate and regulate the pressure of the compressed air in real time based on the pressure of the dispensing end of the dispensing pipeline, so that the pressure of the dispensing end of the dispensing pipeline is always kept consistent when dispensing is carried out at each time, and the consistency of the dispensing quantity in the dispensing process is finally ensured.
The dispensing pipeline 4 is composed of a dispensing hose 41, a pressure detection sensor 42, a dispensing needle head 43 and the like, and is used for detecting the pressure of a dispensing end when dispensing is not performed; and extruding and coating the glue solution on a target workpiece during dispensing. The lower end of the dispensing tube 3 is connected with a dispensing needle 43 through a dispensing hose 41, and the glue solution is extruded through the channel for dispensing during dispensing. The pressure sensor 42 is connected to the dispensing hose 41 near the dispensing needle 43, and detects the pressure of the glue solution near the dispensing needle 43.
Example 2
The invention also provides a large-specific gravity glue solution dispensing control method based on driving air pressure compensation, which comprises the following steps:
1) and driving air pressure compensation control and adjustment before dispensing. According to the pressure detection sensor, the pressure at the tail end of the dispensing pipeline 4 is detected and fed back in real time, the pressure regulating valve 27 is regulated in a feedforward control and closed-loop control combined control mode, the loss of the pressure at the tail end of the dispensing caused by the reduction of the liquid level of the glue liquid in the dispensing pipe 3 is accurately compensated, and the pressure of the glue liquid at the tail end of the dispensing controlled by the driving air pressure compensation is kept constant;
2) and controlling the dispensing process and compensating the driving air pressure in real time. Controlling the air supply valve 21 to enable the driving port 24 to be communicated with the main air inlet 23, driving compressed air to pass through the air pipe 28 after pressure regulation, the main air inlet 23, the driving port 24 and the driving air pipe 25 to enter the rubber pipe 3 to drive glue liquid in a glue dispensing pipe to perform glue dispensing after calculation compensation, and completing the glue dispensing until the glue dispensing time is over; in the dispensing process, the pressure at the dispensing tail end is reduced along with the reduction of the liquid level in the dispensing pipe 3, the regulating valve 21 is controlled to carry out real-time closed-loop regulation on the driving air pressure according to the dispensing tail end pressure value of the dispensing pipeline 4 fed back by detection, and the pressure of the glue solution at the dispensing tail end in the whole dispensing process is ensured to be kept constant;
3) And (5) repeating the step 1) to the step 2) to control the dispensing process.
According to the dispensing control method provided by the invention, during dispensing, the dispensing tail end pressure of the dispensing pipeline is fed back according to real-time detection of the pressure detection sensor, the pressure regulating valve is regulated, and the loss of the dispensing tail end pressure caused by the reduction of the liquid level of the glue solution in the dispensing pipeline is accurately compensated in a compensation driving air pressure mode, so that the pressure of the glue solution at the dispensing tail end is kept constant after compensation control by the driving air pressure.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A large-specific-gravity glue solution dispensing device based on driving air pressure compensation comprises a glue dispensing tube (3) and is characterized in that the glue dispensing tube is provided with a pressure sensor;
the lower end of the dispensing tube (3) is connected with a dispensing pipeline (4), and a pressure detection sensor (42) is arranged at the tail end of the dispensing pipeline (4) close to a dispensing needle head (43);
The upper end and the air supply system (2) of some rubber tubes (3) are connected, air supply system (2) are used for providing the compressed air after the compensation pressure regulating to some rubber tubes (3) according to the pressure value that pressure detection sensor (42) detected, guarantee that pressure detection sensor (42) department glue solution pressure keeps invariable to the glue solution in the drive some rubber tubes (3) is extruded and is glued.
2. The large-specific gravity glue solution dispensing device based on driving air pressure compensation according to claim 1, wherein the air supply system (2) comprises a pressure regulating valve (27), a driving air pipe (25) and a main air inlet pipe (26), compressed air enters the main air inlet pipe (24), pressure regulation is performed on the compressed air through the pressure regulating valve (27), and the compressed air after compensation and pressure regulation finally enters an upper cavity in the glue pipe (3) through the driving air pipe (25) to drive glue solution to be extruded out and dispensed.
3. The large-specific gravity glue solution dispensing device based on driving air pressure compensation according to claim 2, wherein the air supply system (2) further comprises an air supply valve (21) and a pressure-regulating rear air pipe (28), compressed air enters the main air inlet pipe (26), pressure regulation is performed on the compressed air through a pressure regulating valve (27), and the compressed air after compensation and pressure regulation enters the air supply valve (21) through the pressure-regulating rear air pipe (28) and then finally enters the upper cavity in the glue solution rubber pipe (3) through a driving air pipe (25) to drive glue solution extrusion dispensing.
4. The glue dispensing device for the large-specific gravity glue solution based on the driving air pressure compensation is characterized in that the air supply valve (21) adopts a two-position three-way valve, a main air inlet (23), a driving port (24) and an air outlet (22) are arranged on the air supply valve (21), the driving port (24) is connected with a driving air pipe (25), the main air inlet (23) is communicated with a pressure-regulating rear air pipe (28), the driving port (24) is communicated with the main air inlet (23) during glue dispensing, the air supply valve (21) is reversed during non-glue dispensing, and the driving port (24) is communicated with the air outlet (22).
5. The large-specific gravity glue solution dispensing device based on driving air pressure compensation according to claim 1, characterized in that the dispensing pipeline (4) further comprises a dispensing hose (41), the lower end of the dispensing tube (3) is connected with a dispensing needle (43) through the dispensing hose (41), and the pressure detection sensor (42) is connected to the dispensing hose (41) near the dispensing needle (43).
6. The glue dispensing device with large specific gravity based on the driving air pressure compensation according to claim 3, characterized in that 0.7MPa compressed air filtered by pressure stabilization is introduced into the main air inlet pipe (26).
7. A large-specific gravity glue solution dispensing control method based on driving air pressure compensation is characterized by comprising the following steps: 1) before dispensing, the pressure of the dispensing tail end of the dispensing pipeline is fed back according to the real-time detection of the pressure detection sensor, and the introduced compressed air is regulated by using the pressure regulating valve until the pressure value of the glue solution detected by the pressure detection sensor in real time reaches a set value; 2) in the dispensing process, the regulating valve is controlled to regulate the air pressure of the compressed air in real time, the compensated compressed air passes through the pressure-regulated air pipe, the main air inlet, the driving port and the driving air pipe to enter the rubber pipe, the glue solution in the dispensing pipe is driven to be dispensed until the dispensing time is finished, and the dispensing is finished; 3) and (5) repeating the step 1) to the step 2) to control the dispensing process.
8. The method for controlling dispensing of a high specific gravity glue solution based on driving air pressure compensation according to claim 7, wherein in step 1), the driving port is communicated with the exhaust port when dispensing is not performed.
9. The method for controlling dispensing of the high specific gravity glue solution based on the driving air pressure compensation as claimed in claim 7, wherein in the step 2), the air supply valve is reversed during dispensing, and the driving port is communicated with the main air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210269489.7A CN114669442A (en) | 2022-03-18 | 2022-03-18 | Large-specific-gravity glue solution dispensing device based on driving air pressure compensation and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210269489.7A CN114669442A (en) | 2022-03-18 | 2022-03-18 | Large-specific-gravity glue solution dispensing device based on driving air pressure compensation and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114669442A true CN114669442A (en) | 2022-06-28 |
Family
ID=82074113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210269489.7A Pending CN114669442A (en) | 2022-03-18 | 2022-03-18 | Large-specific-gravity glue solution dispensing device based on driving air pressure compensation and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114669442A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115138533A (en) * | 2022-09-05 | 2022-10-04 | 常州铭赛机器人科技股份有限公司 | Constant-pressure output fluid dispensing system and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712022A (en) * | 2009-08-26 | 2010-05-26 | 深圳市腾盛流体控制设备有限公司 | Method for controlling dispensing of dispenser machine |
| CN203329943U (en) * | 2013-07-15 | 2013-12-11 | 浙江联宜电机股份有限公司 | Gum dispensing controller of gumming machine |
| CN206500322U (en) * | 2016-12-30 | 2017-09-19 | 惠州市力普光电有限公司 | A kind of AC LED lamp beads spot gluing equipment |
| CN109701822A (en) * | 2019-03-07 | 2019-05-03 | 业成科技（成都）有限公司 | Point glue equipment and dispensing method |
| CN110899050A (en) * | 2018-09-18 | 2020-03-24 | 深圳市轴心自控技术有限公司 | Online glue amount compensation 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 |
-
2022
- 2022-03-18 CN CN202210269489.7A patent/CN114669442A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712022A (en) * | 2009-08-26 | 2010-05-26 | 深圳市腾盛流体控制设备有限公司 | Method for controlling dispensing of dispenser machine |
| CN203329943U (en) * | 2013-07-15 | 2013-12-11 | 浙江联宜电机股份有限公司 | Gum dispensing controller of gumming machine |
| CN206500322U (en) * | 2016-12-30 | 2017-09-19 | 惠州市力普光电有限公司 | A kind of AC LED lamp beads spot gluing equipment |
| CN110899050A (en) * | 2018-09-18 | 2020-03-24 | 深圳市轴心自控技术有限公司 | Online glue amount compensation method |
| CN109701822A (en) * | 2019-03-07 | 2019-05-03 | 业成科技（成都）有限公司 | Point glue equipment and dispensing 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115138533A (en) * | 2022-09-05 | 2022-10-04 | 常州铭赛机器人科技股份有限公司 | Constant-pressure output fluid dispensing system and control method thereof |
| CN115138533B (en) * | 2022-09-05 | 2022-11-18 | 常州铭赛机器人科技股份有限公司 | Constant-pressure output fluid dispensing system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7967168B2 (en) | Process for controlling a dosing device for liquid or pasty media; dosing device; and industrial robot | |
| CN114669442A (en) | Large-specific-gravity glue solution dispensing device based on driving air pressure compensation and control method | |
| CN104555870A (en) | Liquid quantitative supply device | |
| CN101480831A (en) | Supercritical fluid aerating powder conveying device and control method | |
| CN105983584A (en) | Hot continuous rolling mill steel strip threading deviation tension control method and control system thereof | |
| CN114728303B (en) | Coating equipment and coating method | |
| CN212702776U (en) | Liquid supply device for intermittent coating | |
| CN109263487A (en) | Fuel-cell vehicle generated output test platform and working method | |
| CN114570605A (en) | Glue solution compensation-based large-specific-gravity glue solution dispensing device and control method | |
| CN102555246A (en) | Production line and method of opposite-squeezing-method liner layer of rubber tire | |
| CN117123434A (en) | Automatic pressure and flow automatic regulating apparatus of automatic dispensing detection equipment | |
| CN201338361Y (en) | Supercritical fluid foaming agent conveying device | |
| CN106964519A (en) | A kind of coating complex machine variable gap coater head | |
| JPH0291485A (en) | Liquid quantitative supply device | |
| CN215088501U (en) | Coating equipment | |
| CN113406978B (en) | Water film thickness control system and method of longitudinal force friction coefficient tester | |
| CN111468326B (en) | PID control method and coating closed-loop supply system | |
| CN110152947B (en) | Metering type glue supply device | |
| WO2020134120A1 (en) | Continuous feeding method with twin feeding tanks | |
| CN206882035U (en) | A kind of automatic dispensing device in corrugated paper production line | |
| CN208018869U (en) | A kind of sizer | |
| CN113412719A (en) | Fertilizer suction flow measurement and control integrated device and control method thereof | |
| TW202333864A (en) | Fast glue replenishment device and method by using dispensing cartridge | |
| CN221562203U (en) | Cooling device of extruder | |
| CN221675783U (en) | Speed and pressure double-shaft real-time control system of squeeze casting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220628 |
|
| RJ01 | Rejection of invention patent application after publication |