CN217179685U - Flow detection structure and glue discharging system - Google Patents

Abstract

The utility model relates to a flow detection structure and play system of gluing sets up main line and shunt tubes in parallel. The control component controls the fluid to selectively flow into the main pipeline and the shunt pipeline, so that the circulation of the fluid in the main pipeline is effectively controlled. Thus, when the flow meter needs to perform the metering operation, the control component controls the fluid to flow into the main pipeline so as to enable the fluid to flow through the flow meter, thereby completing the metering operation. When the flowmeter does not need to carry out metering operation, the control component controls the fluid to flow into the shunt pipeline and not flow into the main pipeline. Therefore, the fluid is guaranteed to be kept in a circulation state, continuous operation of glue discharging operation is guaranteed, the fluid is prevented from flowing through the flow meter when the flow meter does not need to work, detection of the flow meter is converted into batch detection through 100% of states, equipment detection abrasion is effectively reduced, the service life of the flow meter is prolonged, and replacement cost is reduced.

Description

Flow detection structure and glue discharging system

Technical Field

The application relates to the technical field of flow control, in particular to a flow detection structure and a glue outlet system.

Background

To obtain the flow rate, a flow meter, such as a gear flow meter, a screw flow meter, or other contact devices, is usually disposed on the pipeline. However, the wear of the flow meter also accompanies the flow rate acquisition, which leads to a reduction in the service life of the equipment and an increase in the equipment replacement cost.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a flow rate detection structure and a glue discharging system, so as to improve the service life of the flow meter and reduce the replacement cost on the premise of ensuring the circulation of fluid.

In a first aspect, the present application provides a flow detection structure, including: a main pipeline; the flowmeter is arranged on the main pipeline and used for detecting the flow in the main pipeline; the shunt pipeline is connected with the main pipeline in parallel; and the control component is used for controlling the fluid to selectively flow into the main pipeline and the shunt pipeline.

In the flow detection structure, the main pipeline and the shunt pipe are arranged in parallel. The control component controls the fluid to selectively flow into the main pipeline and the shunt pipeline, so that the circulation of the fluid in the main pipeline is effectively controlled. Thus, when the flow meter needs to perform the metering operation, the control component controls the fluid to flow into the main pipeline so as to enable the fluid to flow through the flow meter, thereby completing the metering operation. When the flowmeter does not need to carry out metering operation, the control component controls the fluid to flow into the shunt pipeline and not flow into the main pipeline. Therefore, the fluid is guaranteed to be in a circulation state, the fluid is prevented from flowing through the flowmeter when the flowmeter does not need to work, the detection of the flowmeter is converted from a 100% state to batch detection, the equipment detection abrasion is effectively reduced, the service life of the flowmeter is prolonged, and the replacement cost is reduced.

In some embodiments, the fluid supply device further comprises a flow supply device for outputting the fluid, the control member is located downstream of the flow supply device along the fluid flow direction, and the control member is used for controlling the flow supply device to be selectively communicated with the main pipeline and the shunt pipeline. The flow supply is arranged such that a steady flow of fluid into the control member is achieved so that it achieves a steady distribution of fluid.

In some embodiments, the control member is electrically connected with the current supply; wherein the control member is configured to: and controlling the communication times of the current supplier and the main pipeline or the shunt pipeline according to the operation times of the current supplier. Therefore, the control component is electrically connected with the flow supply device to realize communication and matching of the control component and the flow supply device, so that the control component reasonably distributes fluid between the main pipeline and the shunt pipeline, the flow scoring batch detection is realized, the detection frequency and the abrasion degree are reduced, and the service life of the flow scoring batch detection device is prolonged.

In some embodiments, the control member includes a first three-way valve having a first end connected to the supply, a second end connected to the input of the main conduit, and a third end connected to the input of the shunt conduit. By the design, the flow direction of the fluid is more convenient to control through the first three-way valve, batch detection of the flow meter is accurately realized, and the abrasion of the flow meter is effectively reduced.

In some embodiments, the flow supply is a metering controller. Therefore, the flow supply device is designed into a metering control instrument, and the amount of fluid output outwards is ensured to be constant, so that quantitative operation is realized.

In some embodiments, the control member further comprises a switching component for matching fluid output in the main pipeline and the shunt pipeline selected by the control member. Therefore, the on-off component is added, the fluid in the main pipeline and the shunt pipeline is controlled to flow out in a matching manner, and the stable circulation of the airflow is ensured; and the fluid remained in the main pipeline can not continue to flow outwards under the output acting force, so that the flow meter still operates, and the abrasion of the flow meter is further reduced.

In some embodiments, the on-off component includes a second three-way valve, the second three-way valve and the control member are at least partially located on two opposite sides of the flow meter, a first connection end of the second three-way valve is connected with the output end of the main pipeline, a second connection end of the second three-way valve is connected with the output end of the branch pipeline, and a third connection end of the second three-way valve is used for outputting the fluid. So, through the second three-way valve for fluid flow direction control is more accurate, avoids remaining the fluid in the main line still to circulate and leads to the flowmeter operation, further reduces the wearing and tearing of flowmeter.

In some embodiments, the main pipeline includes a first sub-pipe and a second sub-pipe, the first sub-pipe and the second sub-pipe are respectively connected to two ends of the flow meter, one end of the branch pipeline is connected to the first sub-pipe through the control member, and the other end of the branch pipeline is connected to the second sub-pipe through the second three-way valve. So, design the main line respectively for first subduct and second subduct, make things convenient for the installation of flowmeter, be favorable to promoting the packaging efficiency of flow detection structure.

In some embodiments, the pressure detector is further included, and the pressure detector is disposed on the main pipeline and/or the shunt pipeline. Therefore, the pressure detector is used for obtaining the fluid pressure in the flow detection structure, and the control precision of fluid metering is further improved by matching the flow on the flowmeter.

In some embodiments, at least one movable component of the flowmeter is made of ceramic or tungsten steel cemented carbide. So, be ceramic or tungsten steel carbide with the material design of an at least movable part in the flowmeter, be favorable to improving the abrasion resistance of flowmeter, further reduce the wearing and tearing of flowmeter, lifting means's life.

In a second aspect, the present application provides a glue dispensing system, comprising: a flow sensing structure as described above; and the main pipeline and the shunt pipeline are connected with the glue outlet valve.

The glue outlet system adopts the flow detection structure. The main pipeline and the shunt pipe are arranged in parallel. The control component controls the fluid to selectively flow into the main pipeline and the shunt pipeline, so that the circulation of the fluid in the main pipeline is effectively controlled. Thus, when the flow meter needs to perform the metering operation, the control component controls the fluid to flow into the main pipeline so as to enable the fluid to flow through the flow meter, thereby completing the metering operation. When the flowmeter does not need to carry out metering operation, the control component controls the fluid to flow into the shunt pipeline and not flow into the main pipeline. Therefore, the fluid is guaranteed to be kept in a circulation state, continuous operation of glue discharging operation is guaranteed, the fluid is prevented from flowing through the flow meter when the flow meter does not need to work, detection of the flow meter is converted into batch detection through 100% of states, equipment detection abrasion is effectively reduced, the service life of the flow meter is prolonged, and replacement cost is reduced.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

FIG. 1 is a schematic diagram of a glue dispensing system according to some embodiments of the present disclosure;

fig. 2 is a schematic view of a flow supply according to some embodiments of the present application.

100. A flow detection structure; 110. a main pipeline; 111. a first sub-tube; 112. a second sub-tube; 120. a flow meter; 130. a shunt line; 140. a control member; 141. a first three-way valve; 14a, a first end; 14b, a second end; 14c, a third end; 150. a current supply; 151. a control component; 152. a pushing member; 153. a fluid reservoir; 160. an on-off member; 161. a second three-way valve; 16a, a first connection end; 16b, a second connecting end; 16c, a third connecting end; 200. and (4) a glue outlet valve.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Flow sensing is important for operations that require the use of a fluid. The flow rate is obtained through the flowmeter to provide reference for operation, so that the flow rate of the fluid is reasonably controlled, the output quantity of the fluid is consistent, and the operation quality is improved; meanwhile, waste caused by excessive fluid output is avoided, and the production cost is saved.

The inventors note that for some contact flow meters, such as: gear flowmeter, screw flowmeter etc. during the detection, fluid can be continuously flowed through the flowmeter for the flowmeter is in 100% contact detection, leads to the movable part wearing and tearing in the flowmeter serious, shortens the life of flowmeter, increases the equipment maintenance cost.

In order to solve the problems that the flowmeter is easy to wear in operation, short in service life and the like, through intensive research, the inventor designs a flow detection structure, and arranges a shunt pipeline and a main pipeline in parallel; meanwhile, the selective flowing of the fluid into the main pipeline and the shunt pipeline is controlled by a control component.

In the flow detection process, the control component controls the fluid to selectively flow into the main pipeline and the shunt pipeline, so that the circulation of the fluid in the main pipeline is effectively controlled. Thus, when the flow meter needs to perform the metering operation, the control component controls the fluid to flow into the main pipeline so as to enable the fluid to flow through the flow meter, thereby completing the metering operation. When the flowmeter does not need to carry out metering operation, the control component controls the fluid to flow into the shunt pipeline and not flow into the main pipeline. Therefore, the fluid is guaranteed to be in a circulation state, the fluid is prevented from flowing through the flowmeter when the flowmeter does not need to work, the detection of the flowmeter is converted from a 100% state to batch detection, the equipment detection abrasion is effectively reduced, the service life of the flowmeter is prolonged, and the replacement cost is reduced.

The flow detection structure provided by the embodiment of the application can be applied to any system needing flow detection, such as: the flow detection structure of the application can be suitable for use in a gluing system, a spraying pipeline system and the like.

Referring to fig. 1, according to some embodiments of the present application, a flow sensing structure 100 is provided. The flow rate detection structure 100 includes: main conduit 110, flow meter 120, shunt conduit 130, and control component 140. A flow meter 120 is provided on main conduit 110 for sensing flow within main conduit 110. Shunt circuit 130 is disposed in parallel with main circuit 110. Control member 140 is configured to control the selective flow of fluid into main conduit 110 and shunt conduit 130.

The main pipe 110 is a pipe through which a fluid flows and in which flow rate detection is performed, and may be an original pipe in the flow rate detection structure 100. The main pipeline 110 may be a complete pipeline, or may be formed by splicing and communicating multiple branch pipelines. When main pipeline 110 is a complete integrated pipeline, flow meter 120 may be connected to either end of main pipeline 110 to obtain the flow rate in main pipeline 110.

Flow meter 120 refers to a device capable of obtaining the amount of flow in main conduit 110, such as: the flow meter 120 may be, but is not limited to, a gear flow meter 120, a screw flow meter 120, and the like.

The arrangement of shunt circuit 130 in parallel with main circuit 110 should be understood as: the fluid in the shunt pipe 130 and the fluid in the main pipe 110 cannot be in series flow, that is, the same segment of fluid flows into either the shunt pipe 130 or the main pipe 110, and cannot circulate into the shunt pipe 130 and the main pipe 110 at the same time. Of course, fluid for different segments may flow concurrently into shunt canalisation 130 and main canalisation 110.

Control member 140 refers to a device capable of controlling the flow direction of the fluid to selectively flow into shunt circuit 130 and main circuit 110, such as: fluid can be controlled to flow into shunt circuit 130 and not into main circuit 110; alternatively, the control fluid flows into main conduit 110, does not flow into shunt conduit 130, and so on. The control member 140 may be designed as a single three-way control device; a combination structure of two or more control valves and the like can also be designed.

It should be noted that the wear of the flowmeter 120 is mainly caused by the wear of the internal moving parts in order to obtain the flow rate. Such as: screw drive wear, gear mesh wear, and the like. Of course, the impact of the fluid on the probe portion of the flow meter 120 can also cause some structural wear and the like.

When the flow meter 120 needs to perform a metering operation, the control component 140 controls the fluid to flow into the main pipeline 110 and flow through the flow meter 120 to complete the metering operation. When the flow meter 120 does not need to perform the metering operation, the control member 140 controls the fluid to flow into the branch line 130 and not into the main line 110. Therefore, the fluid is ensured to keep a flowing state, and the fluid is prevented from flowing through the flowmeter 120 when the flowmeter 120 does not need to work, so that the detection of the flowmeter 120 is converted from a 100% state to batch detection, the equipment detection wear is effectively reduced, the service life of the flowmeter 120 is prolonged, and the replacement cost is reduced.

According to some embodiments of the present application, optionally, please refer to fig. 1, the flow rate detection structure 100 further comprises a fluid supply 150 for outputting a fluid. The control member 140 is located downstream of the flow supply 150 in the direction of fluid flow. The control component 140 is used for controlling the flow-supplying device 150 to selectively communicate with the main pipeline 110 and the branch pipeline 130.

The fluid supply 150 refers to a device capable of outputting or supplying fluid to the outside, such as: the flow supply 150 may be a separate pump structure, motor-driven device, or the like; the device can also be a device with metering control function, such as a metering controller. Of course, in other embodiments, the flow supply device 150 may not be provided, and the main pipeline 110 and the branch pipeline 130 may be directly connected to a liquid storage device (such as a glue storage tank) through the control component 140.

The control component 140 is located downstream of the flow supply device 150, i.e. when the flow supply device 150 outputs fluid, it passes through the control component 140 first; and then distributed to main conduit 110 or branch conduit 130 by control component 140.

The fluid supply 150 is provided such that the flow of the fluid is stabilized into the control member 140, so that it achieves stable distribution of the fluid.

According to some embodiments of the present application, optionally, referring to fig. 1, the control member 140 is electrically connected with the current supply 150. Wherein the control member 140 is configured to: the number of times the flow supply 150 communicates with the main line 110 or the branch line 130 is controlled according to the number of times the flow supply 150 is operated.

Controlling the number of times that the flow supply 150 is communicated with the main pipeline 110 or the branch pipeline 130 according to the number of times that the flow supply 150 is operated is understood as follows: the number of times the flow supply 150 is operated, i.e., the number of times the fluid is output to the outside. The number of times that the control fluid supply device 150 circulates through the main pipeline 110 or the branch pipeline 130 is the number of times that the control fluid flows into the main pipeline 110 or the branch pipeline 130. Such as: the number of times the flow supply 150 is operated is n, the number of times the fluid flows into the main pipeline 110 is controlled to be m, where m is smaller than n, and the number of times the fluid flows into the branch pipeline 130 is n-m.

The structure of the fluid supply 150 for outputting fluid is various, such as: referring to fig. 2, the flow supply device 150 includes a control unit 151, a pushing unit 152, and a fluid storage 153, wherein the control unit 151 is electrically connected to the pushing unit 152 to control opening and closing of the pushing unit 152. The urging member 152 is at least partially disposed through the fluid reservoir 153. When the pushing member 152 is activated, the pushing member 152 can push out the fluid in the fluid reservoir 153. The pushing member 152 may be a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, or the like. Of course, a combination of a motor and a mechanism capable of converting rotation into thrust may be used. In some embodiments, the pushing member 152 is a combination of a servo motor and a pushing rod.

It should be noted that the specific circuit arrangement between the control component 140 and the flow supply device 150 is not an object of the present application, and only the signal control starting condition between the control component 140 and the flow supply device 150 can be realized, such as: a Control element such as a single chip or an ecu (electronic Control unit) electronic Control unit is disposed in the Control member 140, and when the flow supplier 150 operates once, the Control element obtains an operation signal and controls the start condition of the Control member 140 according to the operation signal to Control whether the flow supplier 150 communicates with the main pipeline 110 or the shunt pipeline 130.

The control component 140 is electrically connected to the flow supply 150 to achieve communication and cooperation between the two, so that the control component 140 reasonably distributes fluid between the main pipeline 110 and the shunt pipeline 130, the flow meter 120 detects in batches, the detection frequency and the wear degree are reduced, and the service life is prolonged.

According to some embodiments of the present application, optionally, referring to fig. 1, the control means 140 comprises a first three-way valve 141. The first three-way valve 141 has a first end 14a connected to the flow supply 150, a second end 14b connected to the input end of the main line 110, and a third end 14c connected to the input end of the branch line 130.

The control member 140 is designed as a first three-way valve 141, so that during the fluid flow direction control process, when the first end 14a is communicated with the second end 14b, the fluid only flows into the main pipeline 110, the shunt pipeline 130 is empty, and the flow meter 120 is in a working state; when the first end 14a is controlled to communicate with the third end 14c, the fluid only flows into the shunt line 130, the main line 110 is empty, and the flow meter 120 is not operated.

Through the first three-way valve 141, the flow direction control of the fluid is more convenient, the batch detection of the flowmeter 120 is accurately realized, and the abrasion of the flowmeter 120 is effectively reduced.

According to some embodiments of the present application, optionally, referring to fig. 1, the flow supply 150 is a metering controller.

Metering control means are devices with metering and delivery, such as: during the fluid delivery, the transmitter transmits pulse signals to a control instrument (meter), each pulse signal representing the volume (unit: cubic meter) of the fluid passing through; the fluid conveying pipeline is provided with a platinum temperature measuring resistor which is used for monitoring the temperature change in the fluid conveying process in time and transmitting data back to the control instrument (measuring instrument).

The flow supply device 150 is designed as a metering controller to ensure a certain amount of fluid to be output to the outside, so as to realize quantitative operation.

According to some embodiments of the present application, optionally, please refer to fig. 1, the flow detecting structure 100 further comprises an on-off component 160. The on/off component 160 is used to matingly communicate the fluid outputs in the main conduit 110 and the shunt conduit 130 selected by the control member 140.

The on-off component 160 is a device capable of selectively controlling the fluid flowing out of the main pipeline 110 and the branch pipeline 130, such as: when the switching member 160 is in the first state, the main line 110 is conducted to discharge the fluid inside. When the on-off member 160 is in the second state, the shunt line 130 is conducted to allow the fluid therein to flow out.

The on-off member 160 is understood to be coupled to the main conduit 110 and the shunt conduit 130: when the control member 140 controls the fluid to flow into the main pipeline 110, the on-off component 160 conducts the main pipeline 110, and the shunt pipeline 130 does not conduct, so that the fluid in the main pipeline 110 flows out; when the control member 140 controls the fluid to flow into the shunt line 130, the on-off component 160 conducts the shunt line 130, and the main line 110 is not conducted, so that the fluid in the shunt line 130 flows out.

Meanwhile, the switching member 160 and the control member 140 are electrically connected to the current supply 150. When the current supply 150 is operated once, the on-off component 160 and the control member 140 act correspondingly, such as: control member 140 controls flow supply 150 to communicate with main conduit 110; the switching member 160 controls the conduction of the main line 110 and the like.

In addition, when the control member 140 controls the fluid to flow into the shunt line 130, the on-off component 160 controls the shunt line 130 to be conducted, and the main line 110 is not conducted. At this time, the main pipeline 110 is not conducted, so that it is better to avoid that the fluid remaining in the main pipeline 110 will not continue to flow outward under the output acting force, and the flow meter 120 still operates.

The on-off component 160 is added to control the outflow of the fluid in the main pipeline 110 and the shunt pipeline 130 in a matching manner, so that the stable circulation of the airflow is ensured; but also prevents the flow of fluid remaining in main conduit 110 from continuing outward under the output force causing flow meter 120 to still operate, thereby further reducing wear on flow meter 120.

According to some embodiments of the present application, optionally, referring to fig. 1, the on-off member 160 includes a second three-way valve 161. The second three-way valve 161 and the control member 140 are at least partially located on opposite sides of the flow meter 120. The first connection end 16a of the second three-way valve 161 is connected to the output end of the main pipeline 110, the second connection end 16b is connected to the output end of the branch pipeline 130, and the third connection end 16c of the second three-way valve 161 is used for outputting fluid.

The on-off member 160 is designed as a second three-way valve 161, so that in the fluid flow direction control process, when the third connection end 16c is controlled to be communicated with the first connection end 16a, the fluid flows out from the main pipeline 110, at this time, the shunt pipeline 130 is equivalently closed, and the flow meter 120 is in a working state; when third connection 16c is controlled to communicate with second connection 16b, fluid flows from shunt line 130, at which time main line 110 is closed and flow meter 120 is not operational.

Through the second three-way valve 161, the flow direction control of the fluid is more accurate, the fluid remaining in the main pipeline 110 is prevented from flowing through to cause the operation of the flow meter 120, and the abrasion of the flow meter 120 is further reduced.

According to some embodiments of the present application, optionally, the main pipeline 110 includes a first sub-pipe 111 and a second sub-pipe 112. The first sub-pipe 111 and the second sub-pipe 112 are connected to both ends of the flow meter 120. The branch line 130 has one end connected to the first sub-pipe 111 through the control member 140 and the other end connected to the second sub-pipe 112 through the second three-way valve 161.

Alternatively, the first sub-pipe 111 and the second sub-pipe 112 are respectively connected to the flow meter 120 by interference fit, bonding, welding, and the like.

The main pipeline 110 is respectively designed into the first sub-pipe 111 and the second sub-pipe 112, so that the flowmeter 120 is convenient to install, and the assembly efficiency of the flow detection structure 100 is improved.

According to some embodiments of the present application, optionally, the flow detection structure 100 further comprises a pressure detector. Pressure detectors are provided on main conduit 110 and/or shunt conduit 130.

The pressure detector refers to a device capable of detecting the pressure of the fluid in the main line 110 or the shunt line 130, such as: pressure sensors, etc.

The pressure detector may be disposed on main conduit 110; or on the shunt line 130; alternatively, at least one pressure detector is disposed on each of the main conduit 110 and the shunt conduit 130. Of course, in other embodiments, a pressure detector or the like is also disposed at the glue outlet valve 200.

The pressure detector is used to obtain the fluid pressure in the flow rate detection structure 100, and the control precision of the fluid metering is further improved by matching the flow rate on the flow meter 120.

According to some embodiments of the present disclosure, at least one movable component in the flow meter 120 is optionally made of ceramic or tungsten steel cemented carbide.

By movable part is meant that at least one structure inside the flow meter 120 is active when it is in operation. Such as: when the flow meter 120 is a geared flow meter 120, the movable member can be a gear. When the flow meter 120 is a screw flow meter 120, the movable member can be a screw. Of course, in other embodiments, the movable member may be made of a wear-resistant material other than ceramic or tungsten carbide.

The material design of at least one movable part in the flowmeter 120 is ceramic or tungsten steel carbide, which is beneficial to improving the wear resistance of the flowmeter 120, further reducing the wear of the flowmeter 120 and prolonging the service life of the equipment.

According to some embodiments of the present application, please refer to fig. 1, which provides a glue dispensing system, comprising: a glue outlet valve 200 and a flow detection structure 100 as in the above solution. The main pipeline 110 and the shunt pipeline 130 are both connected with the glue outlet valve 200.

The glue in the glue discharging system may be optimized, and a glue more friendly to the flow meter 120 is selected, for example, refer to table 1 below specifically. As can be seen from Table 1, the glue can be selected as much as possible when optimizing the glue

TABLE 1 relationship between glue type and equipment maintenance cycle

Taking the glue with the shape of an angle and the parameters of particle size less than 100 um.

The glue discharging system adopts the flow detection structure 100. Main conduit 110 is placed in parallel with the shunt tubes. The selective flow of fluid into main conduit 110 and shunt conduit 130 is controlled by control member 140 such that the circulation of fluid in main conduit 110 is effectively controlled. Thus, when the flow meter 120 needs to perform a metering operation, the control component 140 controls the fluid to flow into the main pipeline 110 and pass through the flow meter 120 to complete the metering operation. When the flow meter 120 does not need to perform the metering operation, the control member 140 controls the fluid to flow into the branch line 130 and not into the main line 110. Therefore, the fluid is guaranteed to be in a circulation state, continuous operation of glue discharging operation is guaranteed, the fluid is prevented from flowing through the flowmeter 120 when the flowmeter 120 does not need to work, detection of the flowmeter 120 is converted from a 100% state to batch detection, equipment detection abrasion is effectively reduced, the service life of the flowmeter 120 is prolonged, and replacement cost is reduced.

Referring to fig. 1 and 2, in some embodiments of the present application, a structure for reducing wear of a flowmeter 120 is provided, in which a branch line 130 is established on a main line 110, and the flowmeter 120 is changed from 100% testing to batch testing. Pressure sensors are arranged at three positions of the shunt pipeline 130, the main pipeline 110 and the glue outlet valve 200, the pressure of glue flow is monitored, the pressure sensors are matched with the flow meter 120 for detection, and the pressure of a flow passage of the glue outlet valve 200 and a plurality of branches can also be monitored. The metering controller is pushed by a servo motor to beat the glue, and the servo motor beats the glue once. The automatic switch signal receiver of the first three-way valve 141 is connected to the signal receiver of the servo motor of the metering controller, and the number of times of movement of the servo motor is monitored to control the automatic switch of the first three-way valve 141. The screw and the gear which are easy to wear and are arranged in the flowmeter 120 are made of wear-resistant ceramic or tungsten steel hard alloy instead of stainless steel, so that the wear resistance of the flowmeter 120 is improved.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (11)

1. A flow sensing structure (100), comprising:

a main pipeline (110);

a flow meter (120) provided on the main pipeline (110) for detecting a flow rate in the main pipeline (110);

a shunt line (130) arranged in parallel with the main line (110);

a control member (140) for controlling selective flow of fluid into the main conduit (110) and the shunt conduit (130).

2. The flow sensing structure (100) according to claim 1, further comprising a flow supply (150) for outputting the fluid, wherein the control member (140) is located downstream of the flow supply (150) in the fluid flow direction, and wherein the control member (140) is configured to control the flow supply (150) to selectively communicate with the main conduit (110) and the branch conduit (130).

3. The flow sensing structure (100) according to claim 2, wherein the control member (140) is electrically connected with the current supply (150);

wherein the control member (140) is configured to: and controlling the communication times of the flow supply device (150) and the main pipeline (110) or the diversion pipeline (130) according to the operation times of the flow supply device (150).

4. The flow sensing structure (100) according to claim 2, wherein the control means (140) comprise a first three-way valve (141), a first end (14a) of the first three-way valve (141) being connected to the flow supply (150), a second end (14b) being connected to the input of the main line (110), and a third end (14c) being connected to the input of the shunt line (130).

5. The flow sensing structure (100) according to any one of claims 2-4, wherein the flow supply (150) is a metering controller.

6. The flow sensing structure (100) according to claim 1, further comprising an on-off component (160), the on-off component (160) being configured to matingly communicate fluid outputs in the main conduit (110) and the shunt conduit (130) selected by the control member (140).

7. The flow sensing structure (100) according to claim 6, wherein the on-off component (160) comprises a second three-way valve (161), the second three-way valve (161) and the control member (140) are at least partially located on opposite sides of the flow meter (120), a first connection end (16a) of the second three-way valve (161) is connected with an output end of the main pipeline (110), a second connection end (16b) is connected with an output end of the branch pipeline (130), and a third connection end (16c) of the second three-way valve (161) is used for outputting the fluid.

8. The flow rate detecting structure (100) according to claim 7, wherein the main pipeline (110) comprises a first sub-pipe (111) and a second sub-pipe (112), the first sub-pipe (111) and the second sub-pipe (112) are respectively connected with two ends of the flow meter (120), one end of the branch pipeline (130) is connected with the first sub-pipe (111) through the control member (140), and the other end is connected with the second sub-pipe (112) through the second three-way valve (161).

9. The flow sensing structure (100) according to claim 1, further comprising a pressure detector provided on the main conduit (110) and/or the shunt conduit (130).

10. The flow sensing structure (100) of claim 1, wherein at least one movable component within the flow meter (120) is made of ceramic or tungsten carbide.

11. A glue dispensing system, comprising:

a flow sensing structure (100) according to any of claims 1-10;

the glue outlet valve (200), the main pipeline (110) and the shunt pipeline (130) are both connected with the glue outlet valve (200).

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