CN112756205B - Pneumatic high-pressure valve and working process thereof - Google Patents
Pneumatic high-pressure valve and working process thereof Download PDFInfo
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- CN112756205B CN112756205B CN202011613330.XA CN202011613330A CN112756205B CN 112756205 B CN112756205 B CN 112756205B CN 202011613330 A CN202011613330 A CN 202011613330A CN 112756205 B CN112756205 B CN 112756205B
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- cavity
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- air inlet
- piston
- 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
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Abstract
The application discloses a pneumatic high-pressure valve and a working process thereof, wherein the pneumatic high-pressure valve comprises a dispensing structure, a glue supply structure, a flow stopping structure and a piston structure, the dispensing structure comprises a middle cavity, a fluid cavity, a dispensing seat and a needle adapter which are sequentially spliced, a fluid cavity is formed between the middle cavity and the fluid cavity, a glue dropping cavity is formed between the dispensing seat and the needle adapter, and a flow passage is arranged between the glue dropping 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, which faces the needle head adapter; the piston structure comprises a top cover, a piston cavity is formed between the top cover and the middle cavity, a 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 guaranteeing the glue dropping 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 dispensing valve, and 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, dropping, scribing, gluing and the like.
In the existing pneumatic high-pressure valve, a valve body is opened in a pneumatic mode to guide glue solution to drop 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 runs for a period of time, the problem that the spring pushes the valve body to open or the reset speed is changed due to aging of the spring or blockage in the valve body can occur, so that the glue dropping precision of the pneumatic high-pressure valve is reduced, and the production quality of a product is affected.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to overcome the defect that the glue dropping precision is reduced after the pneumatic high-pressure valve operates for a period of time in the prior art, thereby providing the pneumatic high-pressure valve and the working process thereof, and the technical scheme of the application is 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 glue solution in the dispensing structure to flow, and a piston structure for controlling the flow stopping structure to operate,
the glue dispensing structure comprises a middle cavity, a fluid cavity, a glue dispensing seat and a needle adapter which are sequentially spliced along the vertical direction, wherein a fluid cavity for flowing glue solution is formed between the middle cavity and the fluid cavity, a glue dispensing cavity is formed between the glue dispensing seat and the needle adapter, and a flow channel is arranged between the glue dispensing cavity and the fluid cavity for communication;
the glue supply structure is arranged on the fluid cavity, is communicated with the fluid cavity and is connected with the glue storage tank;
the anti-flow structure comprises a firing pin which is arranged on the middle cavity in a sliding penetrating way, one end of the firing pin, which faces the needle head adapter, passes through the fluid cavity and is inserted into the glue dripping cavity, one end of the firing pin, which faces the needle head adapter, is sleeved with a sealing sleeve, and the sealing sleeve is propped against the side wall of the flow channel;
the piston structure is including setting up the top cap in middle cavity dorsad fluid cavity one side, the shaping has the piston chamber between top cap and the middle cavity, the piston chamber is inserted to the one end of firing pin towards the top cap to be connected with a piston piece, be equipped with first air inlet on the top cap, be equipped with the second air inlet on the middle cavity, first air inlet, second air inlet all communicate with the piston chamber, and first air inlet and second air inlet are located the both sides of piston piece respectively.
Further, the terminal surface that middle cavity faced the point gum base is equipped with the frictioning ring, the medial surface of frictioning ring is laminated with the side of firing pin, and the terminal surface slope setting of frictioning ring orientation point gum base, the width of frictioning ring medial surface is greater than the width of frictioning ring lateral surface.
Further, one end of the needle head adapter, which faces the fluid cavity, is provided with a guide cylinder, and the inner diameter of the guide cylinder is smaller than the outer diameter of the sealing sleeve.
Further, a stud is formed at one end of the firing pin, which faces the dispensing seat, the diameter of the stud is smaller than that of the firing pin, the sealing sleeve is sleeved on the stud, a nut is 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.
Further, a sealing ring is arranged in the flow channel, and the inner diameter of the sealing ring is smaller than the outer diameter of the sealing sleeve.
Further, 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 a working process of the pneumatic high-pressure valve, which is used for performing glue dripping operation and comprises the following steps:
firstly, ventilation is carried out to the first air inlet, and air in the second air inlet is discharged, and air in the piston cavity pushes the piston and the firing pin to slide, so that the sealing sleeve is driven to slide towards the dispensing seat;
when the sealing sleeve slides to be out of contact with the runner, the glue solution flows into the fluid cavity from the luer connector, then flows into the glue dripping cavity through the runner, and finally drips from the needle adapter;
then, ventilation is carried out to the second air inlet, the air in the first air inlet is discharged, and the air in the piston cavity pushes the piston to slide with the firing pin to drive the sealing sleeve to move towards the middle cavity;
when the sealing sleeve slides to prop against the runner, the sealing sleeve seals the runner, so that the glue solution is blocked from flowing to the glue dropping cavity, and the glue solution is stopped from dropping.
The technical scheme of the application has the following advantages:
1. in the pneumatic high-pressure valve provided by the application, in the dispensing structure, flowing glue solution flows from a fluid cavity to a glue dripping cavity and finally drips from a needle adapter. The glue supply structure utilizes the luer connector to communicate the glue storage tank with the fluid cavity, and 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 that the sealing sleeve abuts 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 supplying structure is prevented from continuously supplying glue solution to the fluid cavity; when the firing pin slides to enable the sealing sleeve to be separated from the runner, the fluid cavity and the glue dripping cavity are restored to be in a communicated state, and the glue supplying structure can continuously supply glue liquid into the fluid cavity. When gas is supplied into the piston cavity through the first air inlet, and the gas between the piston cavity and the second 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 needle head adapter until the sealing sleeve is separated from the flow passage, the glue supplying structure can supply glue solution into the fluid cavity, and the glue solution drops from the needle head adapter; when the second air inlet supplies air into the piston cavity, and releases air between the piston cavity and the first air inlet, the piston sheet and the firing pin can be pushed to move, and the sealing sleeve is driven to slide towards the fluid cavity until the sealing sleeve abuts against the runner, so that the glue supplying structure is prevented from continuously supplying glue solution to the fluid, and the glue solution is stopped from dripping from the needle head adapter. In the scheme, the piston structure drives the firing pin to move and controls the pneumatic high-pressure valve to open and close; if the valve body is blocked, the gas supplied to the first air inlet or the second air inlet is increased, the output force of the piston cavity is increased, the valve body can be still ensured to be opened or reset smoothly, the problem that the valve body is opened or reset speed is changed due to aging of a spring or the blocking in the valve body can be avoided, the glue dropping precision of the pneumatic high-pressure valve is ensured, and the production quality of products is ensured.
2. According to the pneumatic high-pressure valve provided by the application, when glue solution is adhered to the side surface of the firing pin and solidified, the resistance of the firing pin sliding can be increased. After the scraping ring is arranged, when the firing pin slides, the scraping ring can scrape off glue solution adhered and solidified on the side face of the firing pin, so that the sliding resistance of the firing pin is reduced, the maintenance requirement of the pneumatic high-pressure valve is reduced, the sliding precision of the firing pin is improved, and the pneumatic high-pressure valve can be opened or reset and closed smoothly.
3. According to the pneumatic high-pressure valve provided by the application, the guide cylinder is arranged on the needle head connector, and when the firing pin slides towards the needle head connector, the firing pin can finally slide until the sealing sleeve abuts against the end face of the guide cylinder, so that the firing pin is prevented from colliding with the needle head connector to damage the needle head connector.
4. According to the pneumatic high-pressure valve provided by the application, the sealing sleeve is arranged on the stud, and the position of the sealing sleeve is limited by utilizing the cooperation of the nut and the firing pin, so that the sealing sleeve can be prevented from sliding along the length direction of the firing pin, and further, the sealing sleeve can be ensured to be propped against the side wall of the flow channel.
5. According to the pneumatic high-pressure valve provided by the application, the sealing ring is arranged in the flow channel, when the firing pin slides towards the top cover, the sealing sleeve can be abutted against the sealing ring finally, namely, the sealing sleeve is abutted against the side wall of the flow channel through the sealing ring, and the sealing ring can improve the tightness between the sealing sleeve and the flow channel.
6. According to the pneumatic high-pressure valve provided by the application, the pressure gauge is arranged at the second air inlet, and the air pressure of the second air inlet is measured by using the pressure gauge. When gas is introduced into the second air inlet and the gas 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 prevent the firing pin from sliding, and the input air pressure of the second air inlet is required to be increased to push the firing pin to slide smoothly. The pressure gauge is arranged, so that workers can conveniently know the input air pressure at the second air inlet, if the input air pressure is too large, a large amount of solidified glue is adhered to the firing pin, the workers can be reminded to maintain the pneumatic high-pressure valve, normal operation of the pneumatic high-pressure valve is guaranteed, and energy consumption is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of the connection of a pneumatic high pressure valve 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.
Reference numerals illustrate:
1. a top cover; 11. a first air inlet; 111. a first communication member; 12. a piston chamber; 13. a piston plate; 2. a middle cavity; 21. a second air inlet; 211. a second communication member; 212. a pressure gauge; 22. a fluid chamber; 23. a striker; 231. a stud; 232. sealing sleeve; 233. a screw cap; 24. a scraping ring; 25. a flow passage; 251. a seal ring; 3. a fluid chamber; 31. a feed elbow; 311. a luer fitting; 32. a glue dropping cavity; 4. a dispensing seat; 41. a needle adapter; 411. a guide cylinder.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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 should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication 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 according to the specific circumstances.
In addition, the technical features of the different embodiments of the present application described below may be combined with each other as long as they do not collide with each other.
Examples
Referring to fig. 1 and 2, the present application provides a pneumatic high pressure valve comprising a dispensing structure, a glue supply structure for supplying glue to the dispensing structure, a flow stopping structure for controlling the flow of the glue in the dispensing structure, and a piston structure for controlling the operation of the flow stopping structure,
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 bolted along the vertical direction, a fluid cavity 22 for flowing glue is arranged between the middle cavity 2 and the fluid cavity 3, a glue dispensing cavity 32 is arranged between the glue dispensing seat 4 and the needle head adapter 41, and a flow channel 25 is arranged between the glue dispensing cavity 32 and the fluid cavity 22 for communication. Glue flowing in the fluid chamber 22 will flow to the glue dispensing chamber 32 and eventually drop from the needle adapter 41.
The glue supplying structure comprises a feeding elbow 31 connected with the fluid cavity 3, a luer connector 311 is connected to the feeding elbow 31, 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 communicated with the glue storage tank, the glue storage tank is pressurized, so that glue liquid can be pushed to flow into the fluid cavity 22.
In addition, the feeding elbow 31 can be provided with 1/8 of English threads, so that the connecting pipeline is convenient for glue supply.
The flow stopping structure comprises a firing pin 23 which is slidably arranged on the intermediate chamber 2, wherein the firing pin 23 penetrates through the fluid chamber 22 towards one end of the needle adapter 41 and is inserted into the glue dropping chamber 32. The end of the striker 23 facing the needle adapter 41 is further provided with a sealing sleeve 232, the sealing sleeve 232 abutting against the side wall of the flow channel 25. When the firing pin 23 slides to the position that the sealing sleeve 232 abuts against the side wall of the runner 25, the communication between the fluid cavity 22 and the glue dropping cavity 32 can be blocked, and the glue supplying structure is prevented from continuously supplying glue to the fluid cavity 22 and the glue dropping cavity 32, so that the glue drops; when the firing pin 23 slides towards the dispensing seat 4, and the sealing sleeve 232 is separated from the runner 25, the fluid cavity 22 and the glue dropping cavity 32 are restored to be in a communication state, the glue supplying structure can continuously supply glue into the fluid cavity 22, and meanwhile, the sealing sleeve 232 can push the glue to drop out from the needle adapter 41.
Referring to fig. 2, the piston structure comprises a top cover 1 bolted to the side of the middle cavity 2 facing away from the fluid cavity 3, and a piston cavity 12 is formed between the top cover 1 and the middle cavity 2. The striker 23 is inserted into the piston chamber 12 toward one end of the top cover 1, and a piston piece 13 is attached, and the piston piece 13 abuts against the inner side wall of the piston chamber 12. The top cover 1 is provided with a first air inlet 11, the first air inlet 11 is connected with a first communicating piece 111, the side surface of the middle cavity 2 is provided with a second air inlet 21, and the second air inlet 21 is connected with a second communicating piece 211. 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 face of the middle cavity 2, the other end of the second air inlet passes through the top face 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 on two sides of the piston sheet 13. When gas is supplied into the piston cavity 12 through the first gas inlet 11 and released between the piston cavity 12 and the second gas inlet 21, the piston sheet 13 and the firing pin 23 can be pushed to move, the sealing sleeve 232 is driven to slide towards the needle adapter 41 until the sealing sleeve 232 is separated from contact with the runner 25, the glue supplying structure can supply glue solution into the fluid cavity 22, and the glue solution drops from the needle adapter 41; when gas is supplied into the piston cavity 12 through the second gas inlet 21 and released between the piston cavity 12 and the first gas inlet 11, the piston 13 and the firing pin 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 runner 25, so that the glue supplying structure is prevented from continuously supplying glue solution to the fluid, and the glue solution is stopped from dripping from the needle adapter 41.
Referring to fig. 2, in this embodiment, the striker 23 is driven to move by a piston structure, and the pneumatic high-pressure valve is controlled to open and close; if a blockage fault occurs in the valve body, the 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 opened or reset smoothly, the problem that the valve body is opened or reset speed is changed due to aging of a spring or blockage in the valve body can be avoided, the glue dropping precision of the pneumatic high-pressure valve is ensured, and the production quality of products is ensured.
Referring to fig. 2, when the glue is adhered to the side of the striker 23 and cured, the resistance of the striker 23 to sliding is increased, the sliding accuracy of the striker 23 is lowered, and frequent maintenance is required. In order to solve this problem, a scraper ring 24 is formed on the end face of the intermediate chamber 2 facing the dispensing seat 4, and the scraper ring 24 is arranged around the striker 23. The inner side surface of the scraping ring 24 is attached to the side surface of the firing pin 23, and the scraping ring 24 is obliquely arranged towards the end surface of the dispensing seat 4, and the width of the inner side surface of the scraping ring 24 is larger than that of the outer side surface of the scraping ring 24. When the firing pin 23 slides, the glue scraping ring 24 can scrape the glue solution adhered and solidified on the side surface of the firing pin 23, so that the sliding resistance of the firing pin 23 is reduced, the maintenance requirement of the pneumatic high-pressure valve is reduced, the sliding precision of the firing pin 23 is improved, and the pneumatic high-pressure valve can be opened or reset to be closed smoothly.
Referring to fig. 2, a guide cylinder 411 is formed at one end of the needle adapter 41 facing the fluid chamber 3, and an inner diameter of the guide cylinder 411 is smaller than an outer diameter of the sealing sleeve 232. When the striker 23 slides towards the needle connector, the striker 23 can finally slide until the sealing sleeve 232 abuts against the end face of the guide cylinder 411, so that the striker 23 is prevented from colliding with the needle connector to damage the needle connector.
Referring to fig. 2, a stud 231 is formed at one end of the firing pin 23 facing the dispensing base 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 sleeved on the stud 231, and two ends of the sealing sleeve 232 respectively abut against the nut 233 and the end face of the firing pin 23. The sealing sleeve 232 is arranged on the stud 231 and is matched with the firing pin 23 by the nut 233, so that the position of the sealing sleeve 232 is limited, 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 abut against the side wall of the flow channel 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 cavity 3 and the dispensing base 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 towards the cap 1, the sealing sleeve 232 may finally abut against the sealing ring 251, i.e. the sealing sleeve 232 abuts against the side wall of the flow channel 25 via the sealing ring 251, and the sealing ring 251 may improve the tightness between the sealing sleeve 232 and the flow channel 25.
Referring to fig. 1, a pressure gauge 212 is screwed to the second communication member 211, and the pressure gauge 212 is used for measuring the air pressure of the second air inlet 21. When the air is introduced into the second air inlet 21 and released between the first air inlet 11 and the piston cavity 12, the striker 23 can be pulled to slide towards the top cover 1, and if the solidified glue adheres to the striker 23, the solidified glue can prevent the striker 23 from sliding, and the input air pressure of the second air inlet 21 needs to be increased to push the striker 23 to slide smoothly. The pressure gauge 212 is arranged, so that a worker can know the input air pressure at the second air inlet 21 conveniently, if the input air pressure is too large, a large amount of solidified glue is adhered to the firing pin 23, the worker can be reminded to maintain the pneumatic high-pressure valve, the normal operation of the pneumatic high-pressure valve is ensured, and the energy consumption is reduced.
The application also discloses a working process of the pneumatic high-pressure valve, which is characterized in that the pneumatic high-pressure valve is utilized to carry out glue dripping operation, and the working process comprises the following steps:
firstly, ventilation is carried out to the first air inlet 11, and the air of the second air inlet 21 is discharged, and the air in the piston cavity 12 pushes the piston sheet 13 and the firing pin 23 to slide, so that the sealing sleeve 232 is driven to slide towards the dispensing seat 4;
when the sealing sleeve 232 slides to be out of contact with the runner 25, the glue solution flows into the fluid cavity 22 from the luer connector 311, flows into the glue dropping cavity 32 through the runner 25, and finally drops from the needle adapter 41;
then the air is ventilated into the second air inlet 21, the air in the first air inlet 11 is discharged, and the air in the piston cavity 12 pushes the piston 13 to slide with the firing pin 23, so that the sealing sleeve 232 is driven to move towards the middle cavity 2;
when the sealing sleeve 232 slides to abut against the runner 25, the sealing sleeve 232 seals the runner 25, so that the glue solution is blocked from flowing to the glue dropping cavity 32, and the glue solution is stopped from dropping.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present application.
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 flow in the dispensing structure and a piston structure for controlling the flow stopping structure to operate,
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 flowing glue solution is formed between the middle cavity (2) and the fluid cavity (3), a glue dispensing 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 dispensing 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 anti-flow structure comprises a firing pin (23) which is arranged on the middle cavity (2) in a sliding way, one end of the firing pin (23) facing the needle head adapter (41) penetrates through the fluid cavity (22) and is inserted into the glue dropping cavity (32), one end of the firing pin (23) facing the needle head adapter (41) is sleeved with a sealing sleeve (232), and the sealing sleeve (232) is propped against the side wall of the flow channel (25);
the piston structure is including setting up top cap (1) in middle cavity (2) dorsad fluid cavity (3) one side, the shaping has piston chamber (12) between top cap (1) and middle cavity (2), piston chamber (12) are inserted 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 scraping ring (24) is arranged on the end face, facing the dispensing seat (4), of the middle cavity (2), the inner side face of the scraping ring (24) is attached to the side face of the firing pin (23), the scraping ring (24) is obliquely arranged on the end face, facing the dispensing seat (4), of the middle cavity, and the width of the inner side face of the scraping ring (24) is larger than that of the outer side face of the scraping ring (24).
3. A pneumatic high pressure valve according to claim 1, characterized in that the end of the needle adapter (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 sleeved on the stud (231), and two ends of the sealing sleeve (232) are respectively abutted against the nut (233) and the end face of the firing pin (23).
5. A pneumatic high pressure valve according to claim 1, characterized in that a sealing ring (251) is arranged in the flow channel (25), the inner diameter of the sealing ring (251) being smaller than the outer diameter of the sealing sleeve (232).
6. A pneumatic high pressure valve according to claim 1, characterized in that the second air inlet (21) is connected with a pressure gauge (212), the pressure gauge (212) being adapted to measure the air pressure of the second air inlet (21).
7. A working process of a pneumatic high-pressure valve, characterized in that a pneumatic high-pressure valve according to any one of claims 1 to 6 is used for performing a glue dropping operation, comprising the steps of:
firstly, ventilation is carried out to the first air inlet (11), air of the second air inlet (21) is discharged, and air in the piston cavity (12) pushes the piston sheet (13) and the firing pin (23) to slide, so that the sealing sleeve (232) is driven to slide towards the dispensing seat (4);
when the sealing sleeve (232) slides to be out of contact with the runner (25), glue solution flows into the fluid cavity (22) from the luer connector (311), flows into the glue dripping cavity (32) through the runner (25), and finally drips from the needle adapter (41);
then, ventilation is carried out to the second air inlet (21), air in the first air inlet (11) is discharged, and air in the piston cavity (12) pushes the piston sheet (13) and the firing pin (23) to slide, so that the sealing sleeve (232) is driven to move towards the middle cavity (2);
when the sealing sleeve (232) slides to be propped against the runner (25), the sealing sleeve (232) seals the runner (25), so that the glue solution is blocked from flowing to the glue dropping cavity (32), and the glue solution is stopped from dropping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011613330.XA CN112756205B (en) | 2020-12-30 | 2020-12-30 | Pneumatic high-pressure valve and working process thereof |
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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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| CN112756205A CN112756205A (en) | 2021-05-07 |
| CN112756205B true CN112756205B (en) | 2023-10-20 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112756205A (en) | 2021-05-07 |
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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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