CN112756205A - Pneumatic high-pressure valve and working process thereof - Google Patents
Pneumatic high-pressure valve and working process thereof Download PDFInfo
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- CN112756205A CN112756205A CN202011613330.XA CN202011613330A CN112756205A CN 112756205 A CN112756205 A CN 112756205A CN 202011613330 A CN202011613330 A CN 202011613330A CN 112756205 A CN112756205 A CN 112756205A
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- Prior art keywords
- glue
- cavity
- piston
- air inlet
- firing pin
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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
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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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
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- 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
- B05C5/0225—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 characterised by flow controlling means, e.g. valves, located proximate the outlet
Abstract
The application discloses a pneumatic high-pressure valve and a working process thereof, and the pneumatic high-pressure valve comprises a glue dispensing structure, a glue supply structure, a flow stopping structure and a piston structure, wherein the glue dispensing structure comprises a middle cavity, a fluid cavity, a glue dispensing seat and a needle head adapter which are sequentially spliced, a fluid cavity is formed between the middle cavity and the fluid cavity, a glue dripping cavity is formed between the glue dispensing seat and the needle head adapter, and a flow passage is arranged between the glue dripping cavity and the fluid cavity for communication; the glue supply structure is connected with the glue storage tank; the flow stopping structure comprises a firing pin, and a sealing sleeve is sleeved at one end of the firing pin facing the needle head adapter; the piston structure comprises a top cover, a piston cavity is formed between the top cover and the middle cavity, the firing pin is inserted into the piston cavity towards one end of the top cover and is connected with a piston sheet, a first air inlet is formed in the top cover, and a second air inlet is formed in the middle cavity. The pneumatic high-pressure valve has the effect of ensuring the glue dripping precision of the pneumatic high-pressure valve.
Description
Technical Field
The application relates to the technical field of pneumatic high-pressure valves, in particular to a pneumatic high-pressure valve and a working process thereof.
Background
The pneumatic high-pressure valve belongs to a glue dispensing valve, is a process device widely applied to the field of product production, and the application range of the pneumatic high-pressure valve covers the processes of product bonding, filling, coating, sealing, filling, dripping, scribing, gluing and the like.
In the existing pneumatic high-pressure valve, a valve body is opened in a pneumatic mode generally to guide glue solution to drip out; when the valve body is closed, the spring is used for controlling the valve body to reset and close, so that the glue solution stops dripping. However, after the pneumatic high-pressure valve operates for a period of time, due to the aging of the spring or the blockage in the valve body and other reasons, the problem that the spring pushes the valve body to open or reset at a variable speed can occur, so that the glue dripping precision of the pneumatic high-pressure valve is reduced, and the production quality of a product is influenced.
Disclosure of Invention
Therefore, the technical problem that this application will be solved lies in overcoming among the prior art pneumatic high-pressure valve operation after a period, the defect that the drop of glue precision descends to provide a pneumatic high-pressure valve and working process thereof, the technical scheme of this application as follows:
a pneumatic high-pressure valve comprises a dispensing structure, a glue supply structure for supplying glue solution to the dispensing structure, a flow stopping structure for controlling the flow of the glue solution in the dispensing structure and a piston structure for controlling the operation of the flow stopping structure,
the dispensing structure comprises a middle cavity, a fluid cavity, a dispensing seat and a needle head adapter which are sequentially spliced along the vertical direction, a fluid cavity for the flowing of glue liquid is formed between the middle cavity and the fluid cavity, a glue dripping cavity is formed between the dispensing seat and the needle head adapter, and a flow passage is arranged between the glue dripping cavity and the fluid cavity for communicating;
the glue supply structure is arranged on the fluid cavity and communicated with the fluid cavity, and the glue supply structure is connected with the glue storage tank;
the flow stopping structure comprises a firing pin which is slidably arranged on the middle cavity in a penetrating mode, one end, facing the needle head adapter, of the firing pin penetrates through the fluid cavity and is inserted into the glue dripping cavity, a sealing sleeve is sleeved at one end, facing the needle head adapter, of the firing pin, and the sealing sleeve abuts against the side wall of the flow channel;
the piston structure comprises a top cover arranged on one side of a middle cavity body, which is back to the fluid cavity body, a piston cavity is formed between the top cover and the middle cavity body, the striker is inserted into the piston cavity towards one end of the top cover and is connected with a piston sheet, a first air inlet is arranged on the top cover, a second air inlet is arranged on the middle cavity body, the first air inlet and the second air inlet are communicated with the piston cavity, and the first air inlet and the second air inlet are respectively positioned on two sides of the piston sheet.
Furthermore, the end face, facing the dispensing seat, of the middle cavity is provided with a glue scraping ring, the inner side face of the glue scraping ring is attached to the side face of the firing pin, the end face, facing the dispensing seat, of the glue scraping ring is inclined, and the width of the inner side face of the glue scraping ring is larger than that of the outer side face of the glue scraping ring.
Furthermore, a guide cylinder is arranged at one end, facing the fluid cavity, of the needle head adapter, and the inner diameter of the guide cylinder is smaller than the outer diameter of the sealing sleeve.
Furthermore, a stud is formed at one end, facing the dispensing seat, of the firing pin, the diameter of the stud is smaller than that of the firing pin, the sealing sleeve is sleeved on the stud, a nut is further sleeved on the stud, and two ends of the sealing sleeve are respectively abutted against the nut and the end face of the firing pin.
Furthermore, a sealing ring is arranged in the flow passage, and the inner diameter of the sealing ring is smaller than the outer diameter of the sealing sleeve.
Furthermore, the second air inlet is connected with a pressure gauge, and the pressure gauge is used for measuring the air pressure of the second air inlet.
The application also discloses pneumatic high-pressure valve's working process utilizes foretell pneumatic high-pressure valve, carries out the operation of dripping glue, includes following step:
firstly, ventilating the first air inlet, discharging the air in the second air inlet, and pushing the piston and the firing pin to slide by the air in the piston cavity to drive the sealing sleeve to slide towards the dispensing seat;
when the sealing sleeve slides to be separated from the contact with the flow channel, the glue solution flows into the fluid cavity from the Ruhr connector, then flows into the glue dripping cavity through the flow channel, and finally drips from the needle head adapter;
then, ventilating the second air inlet and discharging the air in the first air inlet, wherein the air in the piston cavity pushes the piston and the firing pin to slide, and the sealing sleeve is driven to move towards the middle cavity;
when the sealing sleeve slides to abut against the flow channel, the sealing sleeve seals the flow channel, so that the glue solution is blocked from flowing to the glue dripping cavity, and the glue solution is stopped from dripping.
The technical scheme of the application has the following advantages:
1. the application provides a pair of pneumatic high-pressure valve, in the structure is glued to the point, the gluey chamber is dripped from the fluid chamber flow direction to the flowing of mobile glue solution, finally drips in the follow syringe needle adapter. The glue supply structure utilizes a luer connector to communicate the glue storage tank with the fluid cavity, and the glue solution in the glue storage tank can continuously flow to the fluid cavity. In the flow stopping structure, when the firing pin slides to the position where the sealing sleeve is abutted against the side wall of the flow channel, the communication between the fluid cavity and the glue dripping cavity can be blocked, and the glue supply structure is prevented from continuously supplying glue to the fluid cavity; when the firing pin slides to enable the sealing sleeve to be separated from the flow channel, the fluid cavity and the glue dripping cavity are restored to be communicated, and the glue supply structure can continuously supply glue liquid into the fluid cavity. When gas is supplied into the piston cavity through the first gas inlet and gas between the piston cavity and the second gas inlet is released, the piston sheet and the firing pin can be pushed to move, the sealing sleeve is driven to slide towards the needle head adapter until the sealing sleeve is separated from the flow channel, glue can be supplied into the fluid cavity through the glue supply structure, and the glue drips from the needle head adapter; when air is supplied into the piston cavity through the second air inlet and air between the piston cavity and the first air inlet is released, the piston sheet and the firing pin can be pushed to move, the sealing sleeve is driven to slide towards the fluid cavity until the sealing sleeve abuts against the flow channel, so that the glue supply structure is prevented from continuously supplying glue to fluid, and the glue is stopped from dripping from the needle head adapter. In the scheme, the piston structure drives the firing pin to move and controls the opening and closing of the pneumatic high-pressure valve; if the trouble of jam takes place in the valve body, then increase the gas to first air inlet or the supply of second air inlet, increase the output power in piston chamber, still can guarantee that the valve body opens or resets smoothly, can avoid leading to the valve body to open or the problem that the speed that resets changes because the spring is ageing or the jam in the valve body to guarantee pneumatic high-pressure valve's the precision of glue dripping, guarantee the production quality of product.
2. According to the pneumatic high-pressure valve, when glue liquid is adhered to the side face of the firing pin and solidified, the sliding resistance of the firing pin can be increased. After setting up and scraping the gluey ring, when the firing pin slided, the frictioning ring can be scraped off the glue solution of firing pin side adhesion solidification to reduce the resistance of sliding of firing pin, reduce pneumatic high-pressure valve's maintenance demand, improve the precision of sliding of firing pin, guarantee that pneumatic high-pressure valve can open smoothly or reset and close.
3. The application provides a pair of pneumatic high pressure valve sets up the draft tube on the syringe needle connector, when the firing pin slided towards the syringe needle connector, finally can slide to the terminal surface of seal cover and draft tube and support tightly to avoid firing pin and syringe needle connector collision and damage the syringe needle connector.
4. The application provides a pair of pneumatic high pressure valve sets up the sealing boot on the double-screw bolt to utilize nut and firing pin cooperation, the position of restriction sealing boot can avoid the sealing boot to slide along the length direction of firing pin, and then guarantees that the sealing boot can offset with the lateral wall of runner.
5. The application provides a pair of pneumatic high pressure valve sets up the sealing ring in the runner, when the firing pin slides towards the top cap, final seal cover can support tightly with the sealing ring, and the seal cover supports tightly through sealing ring and runner lateral wall promptly, and the sealing ring can improve the leakproofness between seal cover and the runner.
6. The application provides a pair of pneumatic high pressure valve sets up the manometer at the second air inlet, utilizes the manometer to measure the atmospheric pressure of second air inlet. When air is introduced into the second air inlet and the air between the first air inlet and the piston cavity is released, the firing pin can be pulled to slide towards the top cover, if solidified glue is adhered to the firing pin, the solidified glue can block the sliding of the firing pin, and the input air pressure of the second air inlet needs to be increased to push the firing pin to slide smoothly. Set up the manometer, can make things convenient for the staff to know the input atmospheric pressure size of second inlet port department, if input atmospheric pressure is too big, then explain the gluey of a large amount of solidification of adhesion on the firing pin, can remind the staff to maintain pneumatic high-pressure valve, guarantee pneumatic high-pressure valve normal operating, reduce the energy consumption.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a pneumatic high pressure valve coupled to a pressure gauge in an embodiment of the present application;
fig. 2 is a cross-sectional view of the pneumatic high pressure valve shown in fig. 1.
Description of reference numerals:
1. a top cover; 11. a first air inlet; 111. a first communication member; 12. a piston cavity; 13. a piston plate; 2. a middle cavity; 21. a second air inlet; 211. a second communicating member; 212. a pressure gauge; 22. a fluid chamber; 23. a striker; 231. a stud; 232. sealing sleeves; 233. a nut; 24. scraping a rubber ring; 25. a flow channel; 251. a seal ring; 3. a fluid chamber; 31. a feeding elbow; 311. a luer fitting; 32. a glue dripping cavity; 4. dispensing a glue seat; 41. a needle head adapter; 411. a guide shell.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
Examples
Referring to fig. 1 and 2, the present application provides a pneumatic high pressure valve, which comprises a dispensing structure, a glue supply structure for supplying glue to the dispensing structure, a flow stop structure for controlling the flow of the glue in the dispensing structure, and a piston structure for controlling the operation of the flow stop structure,
the dispensing structure comprises a middle cavity 2, a fluid cavity 3, a dispensing seat 4 and a needle adapter 41 which are sequentially bolted in the vertical direction, a fluid cavity 22 for the flowing of glue liquid is arranged between the middle cavity 2 and the fluid cavity 3, a glue dripping cavity 32 is arranged between the dispensing seat 4 and the needle adapter 41, and a flow channel 25 is arranged between the glue dripping cavity 32 and the fluid cavity 22 for communication. The glue flowing in fluid chamber 22 flows to drip chamber 32 and eventually drips from needle adapter 41.
The glue supply structure comprises a feeding elbow 31 connected with the fluid cavity 3, the feeding elbow 31 is connected with a luer connector 311, the luer connector 311 is used for connecting a glue storage tank, and the luer connector 311 is communicated with the fluid cavity 22. After the luer connector 311 is connected to the glue storage tank, the glue storage tank is pressurized to push the glue solution to flow into the fluid cavity 22.
In addition, the feeding elbow 31 can be provided with imperial 1/8 screw threads to facilitate glue supply through a connecting pipeline.
The flow stopping structure comprises a firing pin 23 slidably arranged on the middle cavity 2, and one end of the firing pin 23 facing the needle adapter 41 penetrates through the fluid cavity 22 and is inserted into the glue dripping cavity 32. The end of plunger 23 facing needle adapter 41 is also fitted with a sealing sleeve 232, and sealing sleeve 232 abuts against the side wall of flow passage 25. When the striker 23 slides to the position where the sealing sleeve 232 abuts against the side wall of the flow channel 25, the communication between the fluid cavity 22 and the glue dripping cavity 32 can be blocked, and the glue supply structure is prevented from continuously supplying glue to the fluid cavity 22 and the glue dripping cavity 32, so that the glue dripping is stopped; when the striker 23 slides towards the dispensing base 4, so that the sealing sleeve 232 is separated from the flow channel 25, the fluid chamber 22 and the glue dripping chamber 32 are restored to the communicating state, the glue supply structure can continue to supply glue into the fluid chamber 22, and the sealing sleeve 232 can push the glue to drip from the needle adaptor 41.
Referring to fig. 2, the piston structure includes a top cover 1 bolted to a side of the middle cavity 2 facing away from the fluid cavity 3, and a piston cavity 12 is opened between the top cover 1 and the middle cavity 2. The end of the striker 23 facing the top cover 1 is inserted into the piston chamber 12 and is connected to a piston plate 13, and the piston plate 13 abuts against the inner side wall of the piston chamber 12. First air inlet 11 has been seted up on top cap 1, is connected with first intercommunication piece 111 on the first air inlet 11, and second air inlet 21 has been seted up to the side of middle cavity 2, is connected with second intercommunication piece 211 on the second air inlet 21. The first air inlet 11 penetrates through the top surface of the top cover 1 and is communicated with the piston cavity 12; one end of the second air inlet 21 is communicated with the side surface of the middle cavity 2, the other end of the second air inlet passes through the top surface of the middle cavity 2 to be communicated with the piston cavity 12, and the first air inlet 11 and the second air inlet 21 are respectively positioned at two sides of the piston sheet 13. When gas is supplied into the piston cavity 12 through the first gas inlet 11 and the gas between the piston cavity 12 and the second gas inlet 21 is released, the piston sheet 13 and the firing pin 23 can be pushed to move, and the sealing sleeve 232 is driven to slide towards the needle adapter 41 until the sealing sleeve 232 is separated from the flow channel 25, the glue supply structure can supply glue liquid into the fluid cavity 22, and the glue liquid drops from the needle adapter 41; when air is supplied into the piston cavity 12 through the second air inlet 21 and the air between the piston cavity 12 and the first air inlet 11 is released, the piston sheet 13 and the striker 23 can be pushed to move, and the sealing sleeve 232 is driven to slide towards the fluid cavity 22 until the sealing sleeve 232 abuts against the flow channel 25, so that the glue supply structure is prevented from continuously supplying glue to the fluid, and the glue is stopped from dripping from the needle adapter 41.
Referring to fig. 2, in this scheme, the plunger structure drives the striker 23 to move, and controls the opening and closing of the pneumatic high-pressure valve; if the valve body is blocked, gas supplied to the first air inlet 11 or the second air inlet 21 is increased, the output force of the piston cavity 12 is increased, the valve body can still be ensured to be smoothly opened or reset, the problem of change of opening or resetting speed of the valve body caused by aging of a spring or blocking in the valve body can be avoided, the glue dripping precision of the pneumatic high-pressure valve is ensured, and the production quality of a product is ensured.
Referring to fig. 2, when the glue adheres to the side of the striker 23 and is cured, the resistance to the sliding of the striker 23 is increased, the sliding accuracy of the striker 23 is reduced, and frequent maintenance is required. In order to solve this problem, a glue scraping ring 24 is formed on the end surface of the middle cavity 2 facing the glue dispensing base 4, and the glue scraping ring 24 is arranged around the firing pin 23. The inner side surface of the glue scraping ring 24 is attached to the side surface of the firing pin 23, the glue scraping ring 24 is obliquely arranged towards the end surface of the glue dispensing base 4, and the width of the inner side surface of the glue scraping ring 24 is larger than that of the outer side surface of the glue scraping ring 24. When the striker 23 slides, the glue scraping ring 24 can scrape off glue solution adhered and solidified on the side surface of the striker 23, so that the sliding resistance of the striker 23 is reduced, the maintenance requirement of the pneumatic high-pressure valve is reduced, the sliding precision of the striker 23 is improved, and the pneumatic high-pressure valve can be smoothly opened or reset and closed.
Referring to fig. 2, a guide tube 411 is formed at the end of the needle adapter 41 facing the fluid chamber 3, and the inner diameter of the guide tube 411 is smaller than the outer diameter of the sealing sleeve 232. When the striker 23 slides towards the needle head, it can finally slide until the sealing sleeve 232 abuts against the end surface of the guide cylinder 411, so as to avoid the striker 23 colliding with the needle head to damage the needle head.
Referring to fig. 2, a stud 231 is formed at one end of the firing pin 23 facing the dispensing seat 4, the diameter of the stud 231 is smaller than that of the firing pin 23, a sealing sleeve 232 is sleeved on the stud 231, a nut 233 is further sleeved on the stud 231, and two ends of the sealing sleeve 232 respectively abut against the nut 233 and the end surface of the firing pin 23. The sealing sleeve 232 is arranged on the stud 231, and the nut 233 is matched with the firing pin 23 to limit the position of the sealing sleeve 232, so that the sealing sleeve 232 can be prevented from sliding along the length direction of the firing pin 23, and the sealing sleeve 232 can be further ensured to be abutted against the side wall of the flow passage 25.
Referring to fig. 2, a sealing ring 251 is embedded in the flow channel 25, the sealing ring 251 is located between the fluid chamber 3 and the dispensing seat 4, and an inner diameter of the sealing ring 251 is smaller than an outer diameter of the sealing sleeve 232. When the striker 23 slides toward the top cover 1, the sealing sleeve 232 may finally abut against the sealing ring 251, that is, the sealing sleeve 232 abuts against the side wall of the flow passage 25 through the sealing ring 251, and the sealing ring 251 may improve the sealing performance between the sealing sleeve 232 and the flow passage 25.
Referring to fig. 1, a pressure gauge 212 is threadedly coupled to the second communicating member 211, and the pressure gauge 212 is used for measuring the air pressure of the second air inlet 21. When air is introduced into the second air inlet 21 and the air between the first air inlet 11 and the piston cavity 12 is released, the striker 23 can be pulled to slide towards the top cover 1, and if solidified glue is adhered to the striker 23, the solidified glue can block the sliding of the striker 23, so that the striker 23 can be pushed to slide smoothly by increasing the input air pressure of the second air inlet 21. The pressure gauge 212 is arranged, so that the worker can conveniently know the input air pressure at the second air inlet 21, if the input air pressure is too large, the condition that a large amount of solidified glue is adhered to the firing pin 23 is solved, the worker can be reminded to maintain the pneumatic high-pressure valve, the normal operation of the pneumatic high-pressure valve is guaranteed, and the energy consumption is reduced.
The application also discloses working process of pneumatic high-pressure valve, its characterized in that utilizes foretell pneumatic high-pressure valve, carries out the operation of dripping to glue, includes following step:
firstly, ventilating the first air inlet 11, exhausting the air in the second air inlet 21, and pushing the piston sheet 13 and the firing pin 23 to slide by the air in the piston cavity 12 to drive the sealing sleeve 232 to slide towards the dispensing seat 4;
when the sealing sleeve 232 slides to be separated from the flow channel 25, the glue solution flows into the fluid cavity 22 from the luer connector 311, then flows into the glue dripping cavity 32 through the flow channel 25, and finally drips from the needle adapter 41;
then, the second air inlet 21 is ventilated, the air in the first air inlet 11 is exhausted, and the air in the piston cavity 12 pushes the piston sheet 13 and the firing pin 23 to slide, so as to drive the sealing sleeve 232 to move towards the middle cavity 2;
when the sealing sleeve 232 slides to abut against the flow channel 25, the sealing sleeve 232 seals the flow channel 25, so that the glue solution is blocked from flowing to the glue dripping cavity 32, and the glue solution dripping is stopped.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention as herein taught may be within the scope of the present invention.
Claims (7)
1. A pneumatic high-pressure valve is characterized by comprising a dispensing structure, a glue supply structure for supplying glue solution to the dispensing structure, a flow stopping structure for controlling the glue solution in the dispensing structure to flow and a piston structure for controlling the flow stopping structure to run,
the glue dispensing structure comprises a middle cavity (2), a fluid cavity (3), a glue dispensing seat (4) and a needle head adapter (41) which are sequentially spliced along the vertical direction, a fluid cavity (22) for glue solution to flow is formed between the middle cavity (2) and the fluid cavity (3), a glue dripping cavity (32) is formed between the glue dispensing seat (4) and the needle head adapter (41), and a flow channel (25) is arranged between the glue dripping cavity (32) and the fluid cavity (22) for communication;
the glue supply structure is arranged on the fluid cavity (3), is communicated with the fluid cavity (22) and is connected with the glue storage tank;
the flow stopping structure comprises a firing pin (23) which is slidably arranged on the middle cavity (2) in a penetrating mode, one end, facing the needle head adapter (41), of the firing pin (23) penetrates through the fluid cavity (22) and is inserted into the glue dripping cavity (32), a sealing sleeve (232) is sleeved at one end, facing the needle head adapter (41), of the firing pin (23), and the sealing sleeve (232) abuts against the side wall of the flow channel (25);
piston structure is including setting up top cap (1) in middle cavity (2) one side of the fluid cavity (3) dorsad, the shaping has piston chamber (12) between top cap (1) and middle cavity (2), striker (23) insert piston chamber (12) towards the one end of top cap (1) to be connected with a piston piece (13), be equipped with first air inlet (11) on top cap (1), be equipped with second air inlet (21) on middle cavity (2), first air inlet (11), second air inlet (21) all communicate with piston chamber (12), and first air inlet (11) and second air inlet (21) are located the both sides of piston piece (13) respectively.
2. The pneumatic high-pressure valve according to claim 1, wherein a glue scraping ring (24) is arranged on the end surface of the middle cavity (2) facing the glue dispensing seat (4), the inner side surface of the glue scraping ring (24) is attached to the side surface of the firing pin (23), the glue scraping ring (24) is obliquely arranged towards the end surface of the glue dispensing seat (4), and the width of the inner side surface of the glue scraping ring (24) is greater than the width of the outer side surface of the glue scraping ring (24).
3. A pneumatic high pressure valve according to claim 1, wherein the end of the needle adaptor (41) facing the fluid chamber (3) is provided with a guide cylinder (411), the inner diameter of the guide cylinder (411) being smaller than the outer diameter of the sealing sleeve (232).
4. The pneumatic high-pressure valve according to claim 1, wherein a stud (231) is formed at one end of the firing pin (23) facing the dispensing seat (4), the diameter of the stud (231) is smaller than that of the firing pin (23), the sealing sleeve (232) is sleeved on the stud (231), a nut (233) is further sleeved on the stud (231), and two ends of the sealing sleeve (232) are respectively abutted against the end faces of the nut (233) and the firing pin (23).
5. A pneumatic high pressure valve according to claim 1, wherein a sealing ring (251) is arranged in the flow channel (25), the sealing ring (251) having an inner diameter smaller than the outer diameter of the sealing sleeve (232).
6. A pneumatic high pressure valve according to claim 1, wherein a pressure gauge (212) is connected to the second inlet (21), the pressure gauge (212) being adapted to measure the pressure in the second inlet (21).
7. An operation process of a pneumatic high pressure valve, wherein a glue dripping operation is performed by using the pneumatic high pressure valve as claimed in any one of claims 1 to 6, comprising the steps of:
firstly, ventilating the first air inlet (11), exhausting the air in the second air inlet (21), pushing the piston sheet (13) and the firing pin (23) to slide by the air in the piston cavity (12), and driving the sealing sleeve (232) to slide towards the dispensing seat (4);
when the sealing sleeve (232) slides to be separated from the contact with the flow channel (25), the glue solution flows into the fluid cavity (22) from the Ruhr joint (311), then flows into the glue dripping cavity (32) through the flow channel (25), and finally drips from the needle head adapter (41);
then, ventilating the second air inlet (21), exhausting the air in the first air inlet (11), and pushing the piston sheet (13) and the firing pin (23) to slide by the air in the piston cavity (12) to drive the sealing sleeve (232) to move towards the middle cavity (2);
when the sealing sleeve (232) slides to abut against the flow channel (25), the sealing sleeve (232) seals the flow channel (25), so that the flow of the glue solution to the glue dripping cavity (32) is blocked, and the dripping of the glue solution is stopped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011613330.XA CN112756205B (en) | 2020-12-30 | 2020-12-30 | Pneumatic high-pressure valve and working process thereof |
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| CN202011613330.XA CN112756205B (en) | 2020-12-30 | 2020-12-30 | Pneumatic high-pressure valve and working process thereof |
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| CN112756205A true CN112756205A (en) | 2021-05-07 |
| CN112756205B CN112756205B (en) | 2023-10-20 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4838722A (en) * | 1985-07-13 | 1989-06-13 | A.W. Faber-Castell Unternehmensverwaltung Gmbh & Co. | Device for dispensing flowable substances |
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| CN208230223U (en) * | 2018-03-15 | 2018-12-14 | 深圳市世宗自动化设备有限公司 | pneumatic injection glue dispensing valve |
| CN214682619U (en) * | 2020-12-30 | 2021-11-12 | 苏州特瑞特机器人有限公司 | Pneumatic high-pressure valve |
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| US4838722A (en) * | 1985-07-13 | 1989-06-13 | A.W. Faber-Castell Unternehmensverwaltung Gmbh & Co. | Device for dispensing flowable substances |
| US6332924B1 (en) * | 1999-02-18 | 2001-12-25 | Taeyang Tech Co., Ltd. | Photoresist dispensing device |
| CN103537406A (en) * | 2013-10-31 | 2014-01-29 | 刘飞 | Contact dispensing valve |
| CN206315986U (en) * | 2016-12-19 | 2017-07-11 | 苏州睿斯合机电设备有限公司 | A kind of firing pin type glue dispensing valve |
| CN206343350U (en) * | 2016-12-26 | 2017-07-21 | 铜陵富仕三佳机器有限公司 | High-frequency jetting type glue dispensing valve |
| CN206911646U (en) * | 2017-05-24 | 2018-01-23 | 深圳市圣铭精密机械有限公司 | A kind of ejector pin type glue dispensing valve |
| CN108202010A (en) * | 2018-02-11 | 2018-06-26 | 苏州睿斯合机电设备有限公司 | A kind of novel striker glue dispensing valve |
| CN208230223U (en) * | 2018-03-15 | 2018-12-14 | 深圳市世宗自动化设备有限公司 | pneumatic injection glue dispensing valve |
| CN108993826A (en) * | 2018-05-14 | 2018-12-14 | 威海信诺威电子设备有限公司 | A kind of injection glue dispensing valve |
| CN214682619U (en) * | 2020-12-30 | 2021-11-12 | 苏州特瑞特机器人有限公司 | Pneumatic high-pressure valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112756205B (en) | 2023-10-20 |
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Address after: 215163 No.3, phase I, standard plant, No.588 Wutaishan Road, high tech Zone, Suzhou City, Jiangsu Province Applicant after: Suzhou Zhuozhao dispensing Co.,Ltd. Address before: 215163 No.3, phase I, standard plant, No.588 Wutaishan Road, high tech Zone, Suzhou City, Jiangsu Province Applicant before: SUZHOU TERUITE ROBOT Co.,Ltd. |
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Address after: No. 189, Wutaishan Road, Suzhou High tech Zone, Suzhou, Jiangsu 215163 Applicant after: Suzhou Zhuozhao dispensing Co.,Ltd. Address before: 215163 No.3, phase I, standard plant, No.588 Wutaishan Road, high tech Zone, Suzhou City, Jiangsu Province Applicant before: Suzhou Zhuozhao dispensing Co.,Ltd. |
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