CN111895100A - Integrated pneumatic ejector pin valve and integrated pneumatic ejector pin mixing valve - Google Patents
Integrated pneumatic ejector pin valve and integrated pneumatic ejector pin mixing valve Download PDFInfo
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- CN111895100A CN111895100A CN202010776779.1A CN202010776779A CN111895100A CN 111895100 A CN111895100 A CN 111895100A CN 202010776779 A CN202010776779 A CN 202010776779A CN 111895100 A CN111895100 A CN 111895100A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- 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
- B05C5/0254—Coating heads with slot-shaped outlet
- B05C5/0258—Coating heads with slot-shaped outlet flow controlled, e.g. by a valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to the field of valve bodies, and provides an integrated pneumatic needle jacking valve which comprises an electromagnetic valve, an electromagnetic valve mounting plate, an air cylinder and a valve needle; the electromagnetic valve mounting plate, the electromagnetic valve and the air cylinder are integrated into an integral structure; the cylinder is used for driving the valve needle to act; an air inlet channel, an upper air channel, a lower air channel and an exhaust channel which are arranged in an isolated way are arranged on the electromagnetic valve mounting plate; the electromagnetic valve controls the action of the cylinder by adjusting the on-off state of the air inlet channel, the upper air channel, the lower air channel, the upper exhaust channel and the lower exhaust channel. A switchable gas path channel is formed by replacing a plurality of scattered gas pipes by a gas flow path customized on the electromagnetic valve mounting plate. The connection structure of the electromagnetic valve mounting plate, the electromagnetic valve and the air cylinder is convenient for integrated mounting, and is beneficial to reducing the overall size of the integrated pneumatic ejector needle valve; the integrated pneumatic needle-jacking valve has the advantages of high response speed of cylinder action, less delay, capability of being used as a feed valve, a stop valve, a mixing valve and the like, and particular suitability for a dispensing valve.
Description
Technical Field
The invention relates to the field of valve bodies, in particular to an integrated pneumatic thimble valve and an integrated pneumatic thimble mixing valve.
Background
In the prior art, a pneumatic thimble valve comprises an electromagnetic valve, a cylinder, a valve needle and a fixed connecting piece; the electromagnetic valve is connected with the cylinder through a plurality of air pipes, and the fixed connecting piece is used for enabling the electromagnetic valve and the cylinder to form a relatively fixed position relation. The pneumatic thimble valve has high installation accuracy requirement, and has lower limit requirement on the length of an air pipe for convenient installation, so that a gas path channel between the electromagnetic valve and the air cylinder is longer, and the action of the pneumatic thimble valve has obvious hysteresis.
Disclosure of Invention
In order to solve the problem of action delay of the traditional pneumatic top needle valve, the technical scheme provided by the invention is as follows:
the invention provides an integrated pneumatic top needle valve which comprises an electromagnetic valve, an electromagnetic valve mounting plate, an air cylinder and a needle; integrating the solenoid valve and the cylinder into an integral structure through the solenoid valve mounting plate; the cylinder is used for driving the valve needle to act so as to control the opening and closing of the integrated pneumatic needle jacking valve; the electromagnetic valve mounting plate is provided with an air inlet channel, an upper air channel, a lower air channel and an exhaust channel which are arranged in an isolated manner; the air inlet channel is used for communicating the electromagnetic valve with an external air source; the upper air channel and the lower air channel are used for communicating the cylinder and the electromagnetic valve, and respectively correspond to an upper side cavity and a lower side cavity of a piston of the cylinder; the exhaust channel comprises an upper exhaust channel and a lower exhaust channel; the upper exhaust channel and the lower exhaust channel are used for communicating the external space of the electromagnetic valve mounting plate with the electromagnetic valve; the electromagnetic valve controls the action of the cylinder by adjusting the on-off states of the air inlet channel, the upper air channel, the lower air channel, the upper air channel and the lower air channel.
Furthermore, the integrated pneumatic needle jacking valve further comprises an upper air valve bolt and a lower air valve bolt; the upper air valve bolt and the lower air valve bolt respectively penetrate through the electromagnetic valve mounting plate, and the electromagnetic valve mounting plate is fixed on the air cylinder; the upper air valve bolt comprises a bolt head and a bolt rod, and an air flow channel is arranged on the bolt rod; the lower air valve bolt and the upper air valve bolt have the same structure; one end of the airflow channel is communicated with the upper airflow channel or the lower airflow channel, and the other end of the airflow channel is communicated with the upper side cavity or the lower side cavity of the cylinder.
Further, the air flow passage extends from the free end of the bolt shaft to the middle of the bolt shaft and then extends to the outside of the bolt shaft by extending along the radial direction of the bolt shaft; the middle size of the bolt rod is smaller than the sizes of the two ends of the bolt rod.
Further, the bolt rod penetrates through the electromagnetic valve mounting plate to form two openings; and sealing parts are arranged at the two openings.
Furthermore, the integrated pneumatic needle jacking valve further comprises a feeding valve body, a discharging valve body, two first bolts and two second bolts; the cylinder comprises a cylinder body and a cylinder cover; the cylinder cover and the cylinder barrel are fixedly connected in sequence through the two first bolts; the cylinder body, the feeding valve body and the discharging valve body are fixedly connected in sequence through the two second bolts.
Further, the integrated pneumatic needle jacking valve further comprises a sealing seat; the sealing seat is arranged at the joint of the feeding valve body and the discharging valve body; the sealing seat comprises a discharging channel extending along the central axis direction of the sealing seat; the free end of the valve needle is spherical; the action surface of the sealing seat, which is in contact with and sealed with the valve needle, is an inverted conical curved surface; the free end of the valve needle and the inverted conical curved surface can be sealed through line contact.
Furthermore, the cylinder cover is elastically connected with the piston of the cylinder through a wave spring for an aeroengine.
Further, the integrated pneumatic needle jacking valve further comprises an adjusting knob; the length of the rod part of the adjusting knob is larger than the thickness of the cylinder cover; the adjusting knob is movably arranged on the cylinder cover; the maximum stroke of the piston of the cylinder can be adjusted by adjusting the screwing depth of the adjusting knob on the cylinder cover.
Further, a position detection sensor is arranged at the top of the cylinder; the position detection sensor is used for detecting the position of the piston of the air cylinder in real time.
The invention also provides an integrated pneumatic ejector pin mixing valve which comprises the integrated pneumatic ejector pin valve.
The invention has the advantages or beneficial effects that:
the electromagnetic valve and the cylinder are integrated into an integral structure through the electromagnetic valve mounting plate with customized design. The electromagnetic valve mounting plate is provided with a plurality of gas flow paths (an air inlet channel, an upper gas path channel, a lower gas path channel and an exhaust channel) which are arranged in an isolated way. A plurality of scattered air pipes are replaced by an air flow path customized on the electromagnetic valve mounting plate, and a switchable air path channel between the electromagnetic valve and the air cylinder is formed. The connecting structure of the electromagnetic valve mounting plate, the electromagnetic valve and the air cylinder is convenient for integrated installation, is simpler and more convenient than the traditional pneumatic ejector needle valve, and is beneficial to reducing the overall size of the integrated pneumatic ejector needle valve and improving the use experience due to the integrated design; on the other hand, the gas circuit passageway that the solenoid valve mounting panel formed exists through the form in the pore of fretwork, compares in the trachea, and it can realize the connection of shorter distance to be favorable to shortening the length of gas circuit passageway, consequently, the cylinder action response speed of the pneumatic needle ejector valve of integrated form is faster, and when the solenoid valve gave the piston action of signal cylinder, the piston can the snap action, and response speed is more than 2 times of the pneumatic needle ejector valve on the market. Compared with an air pipe, an air passage formed by the electromagnetic valve mounting plate has higher mechanical strength and is not easy to deform, so that the action reliability of the integrated pneumatic needle jacking valve is improved. The integrated pneumatic thimble valve provided by the invention can be used for a feed valve or a stop valve or combined into a mixing valve. The integrated pneumatic thimble valve provided by the invention can be used as a fluid quantitative valve, such as a dispensing valve.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic perspective view of an integrated pneumatic needle ejector according to embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view of an integrated pneumatic tip valve provided in accordance with embodiment 1 of the present invention;
fig. 3 is a schematic perspective view of a solenoid valve provided in embodiment 1 of the present invention;
fig. 4 is a schematic perspective view of a solenoid valve mounting plate and some of its accessory assemblies according to embodiment 1 of the present invention;
fig. 5 is a schematic view of an upper air valve bolt provided in embodiment 1 of the present invention.
FIG. 6 is a plan view of an integrated pneumatic tip valve provided in embodiment 1 of the present invention;
fig. 7 is a schematic perspective view of the valve needle and the sealing seat assembly provided in embodiment 1 of the present invention;
fig. 8 is a schematic perspective view of an integrated pneumatic needle ejector according to embodiment 2 of the present invention;
FIG. 9 is a cross-sectional view of an integrated pneumatic tip valve as provided in embodiment 2 of the present invention;
FIG. 10 is a schematic perspective view of an integrated pneumatic mixing valve according to embodiment 3 of the present invention;
fig. 11 is a schematic perspective view of an integrated pneumatic ejector pin mixing valve according to embodiment 4 of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As used herein, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the positional or orientational relationship illustrated in the figures to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.
The appearances of the terms first, second, and third, if any, are used for descriptive purposes only and are not intended to be limiting or imply relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention are described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention without making creative efforts, belong to the protection scope of the invention.
Example 1
In the prior art, a pneumatic thimble valve comprises an electromagnetic valve, a cylinder, a valve needle and a fixed connecting piece; the electromagnetic valve is connected with the cylinder through a plurality of air pipes, and the fixed connecting piece is used for enabling the electromagnetic valve and the cylinder to form a relatively fixed position relation. The pneumatic thimble valve has high installation accuracy requirement, and has lower limit requirement on the length of an air pipe for convenient installation, so that a gas path channel between the electromagnetic valve and the air cylinder is longer, and the action of the pneumatic thimble valve has obvious hysteresis.
In order to solve the problem of the action delay of the conventional pneumatic tip valve, embodiment 1 provides an integrated pneumatic tip valve 01, as shown in fig. 1 and 2, including a solenoid valve 1, a solenoid valve mounting plate 2, a cylinder 3, and a needle 4; the electromagnetic valve 1 and the cylinder 3 are integrated into an integral structure through an electromagnetic valve mounting plate 2; the cylinder 3 is used for driving the valve needle 4 to act so as to control the opening and closing of the integrated pneumatic needle jacking valve 01; an air inlet channel, an upper air channel, a lower air channel and an exhaust channel which are arranged in an isolated way are arranged on the electromagnetic valve mounting plate 2.
The air inlet channel is used for communicating the electromagnetic valve 1 with an external air source; the upper air passage and the lower air passage are used for communicating the cylinder 3 and the solenoid valve 1, and respectively correspond to an upper side chamber 31 and a lower side chamber 32 of a piston 30 of the cylinder 3; the exhaust channel comprises an upper exhaust channel and a lower exhaust channel; the upper exhaust passage and the lower exhaust passage are both used for communicating the external space of the solenoid valve mounting plate 2 with the solenoid valve 1.
Fig. 3 is a schematic perspective view of the solenoid valve 1; fig. 4 is a schematic perspective view of the solenoid valve mounting plate 2 and some of its accessory components. The integrated pneumatic top needle valve 01 provided in the embodiment 1 specifically comprises:
an intake passage: the electromagnetic valve mounting plate 2 is provided with an a1 port and an a2 port, and the a1 port is communicated with the a2 port; the port a1 is connected with an external air source, and the port a2 corresponds to the port a 2' on the solenoid valve 1;
an upper airway passage: the solenoid valve mounting plate 2 is provided with a b1 port and a b2 port, and a b1 port is communicated with a b2 port; wherein the port b1 corresponds to the port b 1' on the solenoid valve 1, and the port b2 is communicated with the upper side chamber 31 of the piston 30 of the cylinder 3;
the lower airway passage: the electromagnetic valve mounting plate 2 is provided with a port c1 and a port c2, and the port c1 is communicated with the port c 2; wherein the port c1 corresponds to the port c 1' on the solenoid valve 1, and the port c2 communicates with the lower chamber 32 of the piston 30 of the cylinder 3;
an upper exhaust passage: the electromagnetic valve mounting plate 2 is provided with a d1 port and a d3 port, and the d1 port is communicated with the d3 port; the port d1 corresponds to the port d 1' on the solenoid valve 1, and the port d3 leads to the external space of the integrated pneumatic needle jacking valve 01 for gas evacuation;
a lower exhaust channel: the electromagnetic valve mounting plate 2 is provided with a d2 port and a d3 port, and the d2 port is communicated with the d3 port; the port d2 corresponds to the port d 2' of the solenoid valve 1, and the port d3 leads to the external space of the integrated pneumatic needle valve 01 for gas evacuation.
The electromagnetic valve 1 controls the action of the cylinder 3 by adjusting the on-off state of the air inlet channel, the upper air channel, the lower air channel, the upper exhaust channel and the lower exhaust channel.
The target tasks are as follows: the valve needle 4 of the integrated pneumatic needle-lift valve 01 moves upwards (i.e., the solenoid valve 1 drives the piston 30 of the cylinder 3 to move upwards), the solenoid valve 1 enables the port a2 ' to be communicated with the port c1 ', the port d2 ' to be closed, and the port b1 ' to be communicated with the port d1 ', so that the air inlet channel is communicated with the lower air channel, and air enters the lower side chamber 32 of the piston 30 of the cylinder 3; meanwhile, the upper gas passage communicates with the upper exhaust passage through which the upper side chamber 31 of the piston 30 of the gas charged cylinder 3 is exhausted to the external space. By changing the air pressure values of the upper chamber 31 and the lower chamber 32 of the piston 30 of the cylinder 3, an air pressure difference is formed, and the piston 30 is driven to move upwards.
Similarly, the target tasks are: the valve needle 4 of the integrated pneumatic needle-lift valve 01 moves downwards (i.e. the solenoid valve 1 drives the piston 30 of the cylinder 3 to move downwards), the solenoid valve 1 enables the port a2 ' and the port b1 ' to be in a communicated state, the port d1 ' is in a closed state, the port c1 ' and the port d2 ' are in a communicated state, so that the air inlet channel is communicated with the upper air channel, and air enters the upper side chamber 31 of the piston 30 of the cylinder 3; meanwhile, the lower gas passage communicates with the lower gas discharge passage through which the lower side chamber 32 of the piston 30 of the gas cylinder 3 is discharged to the external space. By changing the air pressure values of the upper chamber 31 and the lower chamber 32 of the piston 30 of the cylinder 3, an air pressure difference is formed, and the piston 30 is driven to move downwards.
The electromagnetic valve and the cylinder are integrated into an integral structure through the electromagnetic valve mounting plate with customized design. The electromagnetic valve mounting plate is provided with a plurality of gas flow paths (an air inlet channel, an upper gas path channel, a lower gas path channel and an exhaust channel) which are arranged in an isolated way. A plurality of scattered air pipes are replaced by an air flow path customized on the electromagnetic valve mounting plate, and a switchable air path channel between the electromagnetic valve and the air cylinder is formed. The connecting structure of the electromagnetic valve mounting plate, the electromagnetic valve and the air cylinder is convenient for integrated installation, is simpler and more convenient than the traditional pneumatic ejector needle valve, and is beneficial to reducing the overall size of the integrated pneumatic ejector needle valve and improving the use experience due to the integrated design; on the other hand, the gas circuit passageway that the solenoid valve mounting panel formed exists through the form in the pore of fretwork, compares in the trachea, and it can realize the connection of shorter distance to be favorable to shortening the length of gas circuit passageway, consequently, the cylinder action response speed of the pneumatic needle ejector valve of integrated form is faster, and when the solenoid valve gave the piston action of signal cylinder, the piston can the snap action, and response speed is more than 2 times of the pneumatic needle ejector valve on the market. Compared with an air pipe, an air passage formed by the electromagnetic valve mounting plate has higher mechanical strength and is not easy to deform, so that the action reliability of the integrated pneumatic needle jacking valve is improved. The integrated pneumatic thimble valve provided by the invention can be used for a feed valve or a stop valve or combined into a mixing valve. The integrated pneumatic thimble valve provided by the invention can be used as a fluid quantitative valve, such as a dispensing valve.
In order to facilitate the fixation of the solenoid valve mounting plate to the cylinder while reducing the size and weight of the solenoid valve mounting plate as much as possible, further, as shown in fig. 1 and 2, the integrated pneumatic needle-lift valve 01 further includes an upper air valve bolt 20 and a lower air valve bolt 21; the upper air valve bolt 20 and the lower air valve bolt 21 respectively penetrate through the electromagnetic valve mounting plate 2, and the electromagnetic valve mounting plate 2 is fixed on the air cylinder 3; as shown in fig. 5, the upper air valve bolt 20 includes a bolt head 200 and a bolt shaft 201, and an air flow passage 2010 is provided on the bolt shaft 201; the lower air valve bolt 21 has the same structure as the upper air valve bolt 20; one end of the air flow passage 2010 communicates with the upper air passage or the lower air passage, and the other end of the air flow passage 2010 communicates with the upper side chamber 31 or the lower side chamber 32 of the cylinder 3. Function of the upper air valve bolt 20 (lower air valve bolt 21): (1) detachably fixing the electromagnetic valve mounting plate 2 on the air cylinder 3; (2) the air flow passage 2010 provided in the bolt shank 201 of the upper air valve bolt 20 (lower air valve bolt 21) is used to communicate with the upper air passage (lower air passage) of the solenoid valve mounting plate 3, and may be used as an air passage for air intake or exhaust. By utilizing the advantages of the mounting position and the shape characteristics of the bolt rod 201, an airflow channel 2010 with a special structure is formed and can extend into the cylinder. The rod part of the bolt rod 201 strides over the joint of the cylinder 3 and the solenoid valve mounting plate 2, and good sealing is favorably formed.
Specifically, as shown in fig. 5, the air flow passage 2010 extends from the free end 2011 of the bolt shank 201 toward the middle of the bolt shank 201, and then extends to the outside of the bolt shank 201 by extending in the radial direction of the bolt shank 201; the middle dimension of the bolt shank 201 is smaller than the dimensions of the two ends of the bolt shank 201.
Because the bolt rods of the upper air valve bolt and the lower air valve bolt respectively penetrate through the electromagnetic valve mounting plate, and the bolt rods are provided with air flow channels, in order to avoid air leakage, further, as shown in fig. 2, the bolt rods 201 penetrate through the electromagnetic valve mounting plate 2 to form two openings; both openings are provided with seals 220. By providing the seal 220, gas leakage from both openings can be avoided.
Specifically, the seal 220 is a first O-ring. The first O-shaped ring is extruded by the inner wall of the opening and the bolt rod 201 to form elastic deformation, so that a good sealing effect is achieved. The first O-shaped ring has the following effects: (1) the first O-shaped ring has excellent sealing performance and long service life; (2) the first O-shaped ring is low in cost, simple to manufacture and good in pressure resistance. (3) The first O-shaped ring and the mounting part are extremely simple in structure and standardized, so that the mounting and the replacement are very easy; (4) the first O-shaped ring has small friction resistance and self-lubricating property and can be used for oil-free lubrication sealing. The phenomenon of creeping during low-speed and low-pressure movement can be eliminated; (5) the first O-shaped ring is high in wear resistance, and the sealing surface has an automatic elastic compensation function after being worn.
In order to facilitate the connection of the solenoid valve mounting plate with an external air source, further, as shown in fig. 1 and 2, the integrated pneumatic needle ejector 01 further includes an air pipe joint 23; the air pipe joint 23 is provided outside the solenoid valve mounting plate 2 and communicates with the air intake passage. The electromagnetic valve mounting plate 2 can be quickly and conveniently connected with an external air source through an air pipe through the air pipe connector 23.
In order to improve the maintenance efficiency, further, as shown in fig. 1, 2 and 6, the integrated pneumatic needle-lift valve 01 further includes a feeding valve body 5, a discharging valve body 6, two first bolts 70 and two second bolts 71; the cylinder 3 includes a cylinder barrel 33 and a cylinder head 34; the cylinder cover 34 and the cylinder barrel 33 are fixedly connected in sequence through two first bolts 70; the cylinder barrel 33, the feeding valve body 5 and the discharging valve body 6 are fixedly connected in sequence through two second bolts 71. In the process of actual maintenance, when the operation of replacing the O-shaped ring of the sealing guide part in the feeding valve body 5 is needed, the cylinder barrel 33 and the feeding valve body 5 need to be separated, and two first bolts 70 are independently disassembled and assembled, so that the connection state of the cylinder barrel 33 and the cylinder cover 34 can still be kept unaffected due to the connection effect of the second bolts 71; when a sealing part in the cylinder 3 or the valve needle 4 needs to be replaced, the cylinder head 34 and the cylinder barrel 33 need to be separated, and the two second bolts 71 can be independently disassembled and assembled, so that the connection state below the cylinder 3 can still be kept unaffected due to the connection effect of the first bolt 70. Through the unique connection design among the cylinder cover 34, the cylinder barrel 33, the feeding valve body 5 and the discharging valve body 6, the cylinder 3 or the feeding valve body 5 can be independently removed, and the operation is simple and rapid. Because only need carry out the dismouting to specific part at the in-process of overhauing, the relation of connection of other parts can stably keep, consequently, compares with conventional connection design, adopts above-mentioned connection design to help improving maintenance efficiency.
In order to improve the control accuracy of the integrated pneumatic thimble valve, further, as shown in fig. 2, the integrated pneumatic thimble valve 01 includes a feed inlet 51, a discharge outlet 61 and a seal seat 8, the feed inlet 51 is disposed at the side of the feed valve body 5, and the discharge outlet 61 is disposed at the bottom of the discharge valve body 6; the sealing seat 8 is arranged at the joint of the feeding valve body 5 and the discharging valve body 6; the sealing seat 8 comprises a discharge channel 80 extending along the central axis direction of the sealing seat 8; the discharge port 61 is positioned at the tail end of the discharge channel 80; the free end of the valve needle 4 is spherical; the action surface of the sealing seat 8, which is in contact with and sealed by the valve needle 4, is an inverted conical curved surface 81; the free end 41 of the valve needle 4 and the curved reverse-tapered surface 81 may be sealed by line contact, as shown in figure 7. When the valve needle 4 is closed, the sealing mode of the valve needle 4 and the inverted conical curved surface 81 is line contact sealing. The free end of the valve needle 4 has only a small volume in the region of the sealing annulus and therefore volume exchange will only eject a very small amount of fluid. The pull rod or V-shaped valve needle on the market ejects more fluid when closed. Therefore, the valve needle with the structure is applied to glue dispensing valves, particularly feed valves and mixing valves, and is high in control precision and obvious in advantages. Preferably, the valve needle 4 and the seal seat 8 are both made of high-strength materials, such as tungsten steel, which have the advantages of equivalent strength and good wear resistance, and the valve needle 4 and the seal seat 8 are not easy to collide and deform, so that good closing sealing performance can be maintained for a long time, which is beneficial to prolonging the service life of the integrated pneumatic top needle valve 01.
In order to improve the reliability of the integrated pneumatic pin header valve, as shown in fig. 2, a cylinder head 34 is elastically connected to a piston 30 of a cylinder 3 by a wave spring 35 for an aircraft engine. The wave spring 35 for the aero-engine can provide quick rebound power for the piston 30 of the cylinder 3, so that the integrated pneumatic needle jacking valve is enabled to be opened and closed quickly. Wave spring 35 compares advantage with ordinary wire spring for aeroengine: the stroke is more accurate; the elasticity is 3 times of that of a common steel wire spring with the same size; the action is more reliable, the wave spring 35 for the aircraft engine is applied between the cylinder cover 34 and the piston 30, even if an external air source is closed, and under the condition that the pressure difference between the integrated pneumatic needle jacking valve 01 and the external air source is large (within 200 bar), the integrated pneumatic needle jacking valve can still keep a reliable closing state, fluid cannot flow out of the integrated pneumatic needle jacking valve 01 due to the pressure difference, and the reliability of the integrated pneumatic needle jacking valve 01 used as a stop valve is ensured.
To facilitate adjusting the control accuracy of the fluid flow out of the integrated pneumatic thimble valve, further, as shown in fig. 1 and 2, the integrated pneumatic thimble valve 01 further includes an adjusting knob 90; the length of the rod portion of the adjustment knob 90 is greater than the thickness of the cylinder head 34; the adjustment knob 90 is movably disposed on the cylinder head 34; by adjusting the depth of the adjustment knob 90 screwed into the cylinder head 34, the maximum stroke of the piston 30 of the cylinder 3 can be adjusted. The maximum stroke of the piston 30 of the cylinder 3 can be adjusted by the adjusting knob 90, so that the maximum stroke of the valve needle 4 synchronously driven by the piston 30 is changed, thereby adjusting the control accuracy of the integrated pneumatic needle-ejecting valve 01.
Example 2
In order to solve the problem that the movement stroke of the valve needle applied to the integrated pneumatic ejector pin mixing valve is short (only about 3.5 mm), and the internal structure of the feeding valve body is complex, and it is difficult to detect the position of the valve needle, as shown in fig. 8 and 9, on the basis of embodiment 1, embodiment 2 provides an integrated pneumatic ejector pin mixing valve 02, which is different from the integrated pneumatic ejector pin mixing valve 01 provided in embodiment 1: instead of the adjusting knob, a position detecting sensor 91 is further provided on the top of the cylinder 3; the position detection sensor 91 is used to detect the position of the piston 30 of the cylinder 3 in real time. For the integrated pneumatic ejector pin mixing valve 02, the maximum stroke of the piston 30 of the cylinder 3 is fixed, the position detection sensor 91 is used for detecting the position of the piston 30 of the cylinder 3 in real time so as to judge the position and the state of the piston 30, and the position of the valve needle 4 can be judged and the opening and closing state of the integrated pneumatic ejector pin mixing valve 02 can be determined because the piston 30 and the valve needle 4 are relatively fixed, so that the outlet flow of the integrated pneumatic ejector pin mixing valve 02 can be automatically and accurately controlled. Specifically, the position detection sensor 91 includes, but is not limited to, a proximity sensor, an ultrasonic sensor, and the like.
Example 3
Based on embodiment 1, embodiment 3 provides an integrated pneumatic ejector mixing valve 03, as shown in fig. 10, including a mixing tube jacket 0001 and two sets of integrated pneumatic ejector valves 01 as described in embodiment 1. The mixing pipe sheath 0001 is communicated with the discharge ports of the two groups of integrated pneumatic needle jacking valves 01 respectively, and is used for uniformly mixing the two discharge fluids of the two groups of integrated pneumatic needle jacking valves 01 and then discharging the two discharge fluids. The integrated pneumatic thimble mixing valve 03 can be used as a two-component dispensing valve.
Example 4
Based on embodiment 2, embodiment 4 provides an integrated pneumatic ejector mixing valve 04, as shown in fig. 11, including a mixing tube jacket 0001 and two sets of integrated pneumatic ejector valves 02 described in embodiment 2. The mixing pipe sheath 0001 is communicated with the discharge ports of the two groups of integrated pneumatic needle jacking valves 02 respectively, and is used for uniformly mixing two discharge fluids of the two groups of integrated pneumatic needle jacking valves 02 and then discharging the two discharge fluids. The integrated pneumatic ejector pin mixing valve 04 can be used as a two-component dispensing valve.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An integrated pneumatic top needle valve is characterized by comprising an electromagnetic valve, an electromagnetic valve mounting plate, an air cylinder and a needle; integrating the solenoid valve and the cylinder into an integral structure through the solenoid valve mounting plate; the cylinder is used for driving the valve needle to act so as to control the opening and closing of the integrated pneumatic needle jacking valve;
the electromagnetic valve mounting plate is provided with an air inlet channel, an upper air channel, a lower air channel and an exhaust channel which are arranged in an isolated manner;
the air inlet channel is used for communicating the electromagnetic valve with an external air source;
the upper air channel and the lower air channel are used for communicating the cylinder and the electromagnetic valve, and respectively correspond to an upper side cavity and a lower side cavity of a piston of the cylinder;
the exhaust channel comprises an upper exhaust channel and a lower exhaust channel; the upper exhaust channel and the lower exhaust channel are used for communicating the external space of the electromagnetic valve mounting plate with the electromagnetic valve;
the electromagnetic valve controls the action of the cylinder by adjusting the on-off states of the air inlet channel, the upper air channel, the lower air channel, the upper air channel and the lower air channel.
2. The integrated pneumatic tip valve of claim 1, further comprising an upper valve bolt and a lower valve bolt; the upper air valve bolt and the lower air valve bolt respectively penetrate through the electromagnetic valve mounting plate, and the electromagnetic valve mounting plate is fixed on the air cylinder;
the upper air valve bolt comprises a bolt head and a bolt rod, and an air flow channel is arranged on the bolt rod; the lower air valve bolt and the upper air valve bolt have the same structure;
one end of the airflow channel is communicated with the upper airflow channel or the lower airflow channel, and the other end of the airflow channel is communicated with the upper side cavity or the lower side cavity of the cylinder.
3. The integrated pneumatic top needle valve according to claim 2, wherein the air flow passage extends from a free end of the bolt shank toward a middle portion of the bolt shank and then extends to an outer portion of the bolt shank in a radial direction of the bolt shank; the middle size of the bolt rod is smaller than the sizes of the two ends of the bolt rod.
4. The integrated pneumatic needle top valve of claim 2, wherein the bolt shank forms two openings through the solenoid valve mounting plate; and sealing parts are arranged at the two openings.
5. The integrated pneumatic needle lift valve of claim 1, further comprising a feed valve body, a discharge valve body, two first bolts and two second bolts; the cylinder comprises a cylinder body and a cylinder cover; the cylinder cover and the cylinder barrel are fixedly connected in sequence through the two first bolts; the cylinder body, the feeding valve body and the discharging valve body are fixedly connected in sequence through the two second bolts.
6. The integrated pneumatic needle tip valve of claim 5, further comprising a seal seat; the sealing seat is arranged at the joint of the feeding valve body and the discharging valve body; the sealing seat comprises a discharging channel extending along the central axis direction of the sealing seat;
the free end of the valve needle is spherical; the action surface of the sealing seat, which is in contact with and sealed with the valve needle, is an inverted conical curved surface; the free end of the valve needle and the inverted conical curved surface can be sealed through line contact.
7. The integrated pneumatic lift pin valve of claim 5 wherein the cylinder head is resiliently connected to the piston of the cylinder by a wave spring of an aircraft engine.
8. The integrated pneumatic tip valve of claim 5, further comprising an adjustment knob; the length of the rod part of the adjusting knob is larger than the thickness of the cylinder cover; the adjusting knob is movably arranged on the cylinder cover; the maximum stroke of the piston of the cylinder can be adjusted by adjusting the screwing depth of the adjusting knob on the cylinder cover.
9. The integrated pneumatic needle ejector according to any one of claims 1 to 7, wherein a position detection sensor is further provided at the top of the cylinder; the position detection sensor is used for detecting the position of the piston of the air cylinder in real time.
10. An integrated pneumatic ejector mixing valve, characterized by comprising an integrated pneumatic ejector valve according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010776779.1A CN111895100A (en) | 2020-08-05 | 2020-08-05 | Integrated pneumatic ejector pin valve and integrated pneumatic ejector pin mixing valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010776779.1A CN111895100A (en) | 2020-08-05 | 2020-08-05 | Integrated pneumatic ejector pin valve and integrated pneumatic ejector pin mixing valve |
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| CN202010776779.1A Pending CN111895100A (en) | 2020-08-05 | 2020-08-05 | Integrated pneumatic ejector pin valve and integrated pneumatic ejector pin mixing valve |
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| WO2022156503A1 (en) * | 2021-01-21 | 2022-07-28 | 米洛创新(深圳)有限公司 | Integration box and pneumatic high vacuum flapper valve |
| CN117583213A (en) * | 2024-01-19 | 2024-02-23 | 常州铭赛机器人科技股份有限公司 | Gel height compensation method, device, equipment and medium thereof |
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Address after: 214000 No.1 Xiqin Road, Xinwu District, Wuxi City, Jiangsu Province Applicant after: Cunrong Fluid Equipment (Wuxi) Co.,Ltd. Address before: 214000 No.1 Xiqin Road, Xinwu District, Wuxi City, Jiangsu Province Applicant before: Wuxi bingping Automation Technology Co.,Ltd. |
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Application publication date: 20201106 |
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