CN114687992A - Vacuum generating system for sealed cavity - Google Patents
Vacuum generating system for sealed cavity Download PDFInfo
- Publication number
- CN114687992A CN114687992A CN202011635519.9A CN202011635519A CN114687992A CN 114687992 A CN114687992 A CN 114687992A CN 202011635519 A CN202011635519 A CN 202011635519A CN 114687992 A CN114687992 A CN 114687992A
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- air
- flange plate
- vacuum
- flange
- mandrel
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- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 11
- 230000007246 mechanism Effects 0.000 abstract description 7
- 230000007774 longterm Effects 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 abstract description 4
- 230000003116 impacting effect Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0493—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases using vacuum
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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
- F16K1/32—Details
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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
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses a vacuum generating system for a sealed cavity, which is arranged on a vacuum cabin body, wherein the outer surface of one side of the vacuum cabin body is provided with an air suction opening and two air inlets, the inner walls of the air suction opening and the air inlets, which are respectively close to one end inside the vacuum cabin body, are respectively provided with a flange part extending inwards in the radial direction, a first flange plate is embedded into the air suction opening, a second flange plate is embedded into the air inlet, the air suction opening is provided with a connecting seat, a piston rod of a first air cylinder is connected with the first flange plate through a first mandrel, the first mandrel is sleeved with an elastic piece with an outer flange, one end of the elastic piece, which is close to the first flange plate, is contacted with a part positioned on the tail end of the first mandrel, and the other end of the elastic piece is connected with a shell of the first air cylinder in an extrusion manner. The sealing structure can improve the sealing performance of the first flange plate to the air suction opening in the long-term use process, can prevent the first flange plate from impacting due to too fast contraction in the opening process, and prolongs the service life of the mechanism.
Description
Technical Field
The invention relates to the technical field of vacuum cavity sealing, in particular to a vacuum generating system for a sealed cavity.
Background
The vacuum cavity is mainly applied to the product point and glues and the encapsulation field, utilizes the effort of negative pressure, takes away the air in the vacuum box earlier at the in-process that fills, carries out the product again and fills, can permeate glue inside the product fast, fills and assaults and glue and also can take away fast with the bubble that the product contact produced under the negative pressure to guarantee the high performance of product. In the prior art, when the cavity is vacuumized, the vacuum value in the cavity is unstable due to the fact that the pressure difference between the air pressure in the cavity and the external air pressure is large and the valve is delayed when being closed. And the adsorption force generated by the larger internal and external pressure difference has higher output power requirement on the closing mechanism of the valve, and the valve opening and closing mechanism with larger kinetic energy can impact the cavity, so that the service life of the valve is shortened.
Disclosure of Invention
The invention aims to provide a vacuum generating system for a sealed cavity, which can improve the sealing performance of a first flange plate to an air pumping hole in the long-term use process, prevent the first flange plate from impacting due to too fast contraction in the opening process and prolong the service life of a mechanism.
In order to achieve the purpose, the invention adopts the technical scheme that: a vacuum generating system for a sealed cavity is arranged on a vacuum chamber body, an air suction opening and two air inlets are formed in the outer surface of one side of the vacuum chamber body, the inner walls of the air suction opening and the air inlets, which are close to one end inside the vacuum chamber body, are respectively provided with a flange part extending inwards in the radial direction, a first flange plate is embedded into the air suction opening, a second flange plate is embedded into the air inlets, the end surfaces of one end of each of the first flange plate and the second flange plate are in surface contact with the end surfaces of the corresponding flange part, and the other end of each of the first flange plate and the second flange plate is connected with a piston rod of a first air cylinder and a piston rod of a second air cylinder which are correspondingly arranged;
the vacuum pump is characterized in that a connecting seat is mounted on the air exhaust opening, one end face of the connecting seat is connected with the vacuum chamber body, a first air cylinder is mounted on the other end face of the connecting seat, a piston rod of the first air cylinder is connected with a first flange plate through a first spindle, a first through hole communicated with the air exhaust opening is formed in the connecting seat along the direction of the first spindle, the first spindle is telescopically arranged in the first through hole, an air exhaust hole communicated with the first through hole is further formed in the connecting seat, and the air exhaust hole is used for being connected with a vacuum pump;
the first mandrel is sleeved with an elastic piece, one end of the elastic piece, close to the first flange plate, is in contact with an outer flange part positioned at the tail end of the first mandrel, and the other end of the elastic piece is connected with a shell of the first cylinder in an extrusion manner;
a cushion block is arranged between the first air cylinder and the connecting seat, the other end of the elastic piece is connected with the cushion block in an extrusion manner, a second through hole through which a piston rod and a first mandrel of the first air cylinder can penetrate is formed in the center of the cushion block, and an air outlet hole communicated with the second through hole is formed in the outer end face of the cushion block;
the ratio of the outer diameters of the 2 second flange plates respectively embedded into the two air inlets is 5: 2-3, when the vacuum cabin body is in the pressure release state, the second flange plate with the small outer diameter is pulled out from the corresponding air inlet through the second air cylinder, and then the second flange plate with the large outer diameter is pulled out from the corresponding air inlet.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the air exhaust hole is provided with an air exhaust seat.
2. In the above scheme, the elastic member is a bellows-shaped elastic member.
3. In the scheme, a supporting gasket is arranged between the shell of the first cylinder and the elastic piece, and the supporting gasket is sleeved on the first mandrel and is in extrusion contact with the end face of the elastic piece.
4. In the above scheme, the support gasket is fixedly arranged in the air exhaust port.
5. In the above scheme, the cushion block comprises a main body part close to the first cylinder and a protruding part embedded into the air exhaust port.
6. In the scheme, a screw penetrates through the first cylinder and the cushion block in sequence to be connected with the connecting seat, and the first cylinder and the cushion block are installed on the connecting seat.
7. In the scheme, the end face of the connecting seat connected with the vacuum cabin body is provided with an annular groove for embedding the sealing ring.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the invention relates to a vacuum generating system for a sealed cavity, wherein a piston rod of an air cylinder is connected with a first flange plate through a mandrel, a through hole communicated with an air suction opening is formed in a connecting seat along the direction of the mandrel, the mandrel is telescopically arranged in the through hole, an elastic part is sleeved on the mandrel, one end of the elastic part close to the first flange plate is contacted with an outer flange part positioned on the tail end of the mandrel, the other end of the elastic part is connected with a shell of the air cylinder in an extrusion manner, force can be superposed and applied to the first flange plate when the first flange plate is closed through the arrangement of the elastic part, the sealing property of the first flange plate to the air suction opening in the long-term use process is improved, impact caused by too fast contraction can be prevented in the opening process of the first flange plate, and the service life of the mechanism is prolonged.
2. The invention relates to a vacuum generating system for a sealed cavity, which is characterized in that the ratio of the outer diameters of 2 second flange plates respectively embedded into two air inlets is 5: 2~3, when the vacuum chamber body is in the pressure release state, through the second cylinder with the second ring flange that the external diameter is little from the air inlet that corresponds, again with the second ring flange that the external diameter is big from the air inlet that corresponds, through the cooperation setting between first ring flange and 2 second ring flanges of not uniform size, on the basis of realizing carrying out the evacuation to the vacuum chamber body, further realized the accurate regulation to the internal gas pressure of vacuum chamber, can also be at broken vacuum in-process's pressure release step by step, both avoid the internal gas pressure of vacuum chamber suddenly change and harm product or equipment component, can avoid again because of the cylinder output power is insufficient the condition that can not draw the second ring flange, both reduced the requirement to cylinder output power, consumption reduction and energy saving, can reduce the impact load to the vacuum chamber body again, the extension equipment life.
3. The vacuum generating system for the sealed cavity is characterized in that a cushion block is arranged between a first air cylinder and a connecting seat, the other end of an elastic piece is connected with the cushion block in an extruding manner, a second through hole for a piston rod of the first air cylinder and a first mandrel to penetrate is formed in the center of the cushion block, and an air outlet hole communicated with the second through hole is formed in the outer end face of the cushion block, so that the piston rod of the air cylinder can be ensured to always keep constant driving force in the long-term reciprocating motion process, and the condition that a flange plate cannot be driven to tightly seal an air suction opening due to air blocking can be avoided.
Drawings
FIG. 1 is a schematic structural view of a vacuum generating system for a sealed chamber according to the present invention;
FIG. 2 is a schematic cross-sectional view of a vacuum generating system for a sealed chamber according to the present invention;
FIG. 3 is a first schematic structural diagram of a cushion block in a vacuum generation system for sealing a cavity according to the present invention;
FIG. 4 is a schematic structural diagram of a second cushion block in the vacuum generation system for sealing a chamber according to the present invention.
In the above drawings: 1. a vacuum bin body; 2. an air extraction opening; 3. an air inlet; 4. a flange portion; 5. a first flange plate; 6. a second flange plate; 7. a first cylinder; 8. a second cylinder; 9. a connecting seat; 10. a first mandrel; 101. an outer flange portion; 11. a first through hole; 12. an air exhaust hole; 13. an air exhaust seat; 14. an elastic member; 15. a support washer; 16. a cushion block; 161. a main body portion; 162. a boss portion; 17. a second through hole; 18. and an air outlet.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but 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 invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; 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 meaning of the above terms in this patent may be understood in a concrete sense to those of ordinary skill in the art.
Example 1: a vacuum generating system for a sealed cavity is arranged on a vacuum cabin body 1, an air suction opening 2 and two air inlets 3 are arranged on the outer surface of one side of the vacuum cabin body 1, the inner walls of the air suction opening 2 and the air inlets 3 close to one end inside the vacuum cabin body 1 respectively are provided with a flange part 4 extending inwards in the radial direction, a first flange plate 5 is embedded into the air suction opening 2, a second flange plate 6 is embedded into the air inlets 3, the end surface of one end of each of the first flange plate 5 and the second flange plate 6 is in surface contact with the end surface of the corresponding flange part 4, and the other end of each of the first flange plate 5 and the second flange plate 6 is connected with the piston rod of a first air cylinder 7 and a second air cylinder 8 which are correspondingly arranged;
a connecting seat 9 is installed on the air suction port 2, one end face of the connecting seat 9 is connected with the vacuum chamber body 1, the first air cylinder 7 is installed on the other end face of the connecting seat 9, a piston rod of the first air cylinder 7 is connected with the first flange 5 through a first mandrel 10, a first through hole 11 communicated with the air suction port 2 is formed in the connecting seat 9 along the direction of the first mandrel 10, the first mandrel 10 is telescopically arranged in the first through hole 11, an air suction hole 12 communicated with the first through hole 11 is further formed in the connecting seat 9, and the air suction hole 12 is used for being connected with a vacuum pump;
an elastic part 14 is sleeved on the first mandrel 10, one end of the elastic part 14 close to the first flange plate 5 is in contact with an outer flange part 101 positioned on the tail end of the first mandrel 10, and the other end of the elastic part 14 is connected with the shell of the first cylinder 7 in a squeezing mode;
a cushion block 16 is arranged between the first cylinder 7 and the connecting seat 9, the other end of the elastic part 14 is connected with the cushion block 16 in an extruding manner, a second through hole 17 for a piston rod of the first cylinder 7 and the first mandrel 10 to penetrate is formed in the center of the cushion block 16, and an air outlet hole 18 communicated with the second through hole 17 is formed in the outer end face of the cushion block 16;
the ratio of the outer diameters of the 2 second flange plates 6 respectively embedded into the two air inlets 3 is 5: 2, when the vacuum chamber body 1 is in a pressure relief state, the second flange 6 with small outer diameter is pulled out from the corresponding air inlet 3 through the second air cylinder 8, and then the second flange 6 with large outer diameter is pulled out from the corresponding air inlet 3.
An air suction seat 13 is installed on the air suction hole 12.
The elastic member 14 is a bellows-shaped elastic member.
A support gasket 15 is arranged between the shell of the first cylinder 7 and the elastic element 14, and the support gasket 15 is sleeved on the first mandrel 10 and is in pressing contact with the end face of the elastic element 14.
The end surface of the connecting seat 9 connected with the vacuum chamber body 1 is provided with an annular groove for embedding a sealing ring.
Example 2: a vacuum generating system for a sealed cavity is arranged on a vacuum cabin body 1, an air suction opening 2 and two air inlets 3 are arranged on the outer surface of one side of the vacuum cabin body 1, the inner walls of the air suction opening 2 and the air inlets 3 close to one end inside the vacuum cabin body 1 respectively are provided with a flange part 4 extending inwards in the radial direction, a first flange plate 5 is embedded into the air suction opening 2, a second flange plate 6 is embedded into the air inlets 3, the end surface of one end of each of the first flange plate 5 and the second flange plate 6 is in surface contact with the end surface of the corresponding flange part 4, and the other end of each of the first flange plate 5 and the second flange plate 6 is connected with the piston rod of a first air cylinder 7 and a second air cylinder 8 which are correspondingly arranged;
a connecting seat 9 is installed on the air suction port 2, one end face of the connecting seat 9 is connected with the vacuum chamber body 1, the first air cylinder 7 is installed on the other end face of the connecting seat 9, a piston rod of the first air cylinder 7 is connected with the first flange 5 through a first mandrel 10, a first through hole 11 communicated with the air suction port 2 is formed in the connecting seat 9 along the direction of the first mandrel 10, the first mandrel 10 is telescopically arranged in the first through hole 11, an air suction hole 12 communicated with the first through hole 11 is further formed in the connecting seat 9, and the air suction hole 12 is used for being connected with a vacuum pump;
an elastic part 14 is sleeved on the first mandrel 10, one end of the elastic part 14 close to the first flange plate 5 is in contact with an outer flange part 101 positioned on the tail end of the first mandrel 10, and the other end of the elastic part 14 is connected with the shell of the first cylinder 7 in a squeezing mode;
a cushion block 16 is arranged between the first cylinder 7 and the connecting seat 9, the other end of the elastic part 14 is connected with the cushion block 16 in an extruding manner, a second through hole 17 for a piston rod of the first cylinder 7 and the first mandrel 10 to penetrate is formed in the center of the cushion block 16, and an air outlet hole 18 communicated with the second through hole 17 is formed in the outer end face of the cushion block 16;
the ratio of the outer diameters of the 2 second flange plates 6 respectively embedded into the two air inlets 3 is 5: 3, when the vacuum chamber body 1 is in a pressure relief state, the second flange 6 with small outer diameter is pulled out from the corresponding air inlet 3 through the second air cylinder 8, and then the second flange 6 with large outer diameter is pulled out from the corresponding air inlet 3.
The support washer 15 is fixedly installed in the suction port 2.
The pad 16 includes a main body 161 close to the first cylinder 7 and a boss 162 fitted into the suction port 2.
A screw penetrates through the first cylinder 7 and the cushion block 16 in sequence to be connected with the connecting seat 9, and the first cylinder 7 and the cushion block 16 are installed on the connecting seat 9.
The working principle is as follows:
the first cylinder drives the first flange plate to stretch and retract so as to control the opening and closing of the air exhaust flow passage, thereby controlling the on-off of the vacuumizing operation in the vacuum cabin body;
the opening and closing of the air inlet flow channel are controlled by driving the second flange plate to stretch by 2 second cylinders, and the air pressure change and the air pressure micro-change in the vacuum bin body are respectively controlled;
when the first flange plate is pulled away from the air pumping hole by the first air cylinder, the external part is connected with an air pump to start working, and air is pumped from the vacuum chamber body;
when the air pressure in the vacuum bin is larger than a preset value of an air pressure sensor arranged on the vacuum bin, the first air cylinder pushes the first flange plate into the air exhaust port;
pulling the second flange plate with the smaller outer diameter away from the air inlet, and finely adjusting the air pressure in the vacuum chamber body until the air pressure reaches a preset value;
after the operation in the vacuum cabin is finished, the second flange plate with the smaller outer diameter is pulled away from the air inlet, the pressure is slowly released, and when the air pressure in the vacuum cabin reaches a preset value, the second flange plate with the larger outer diameter is pulled away from the air inlet, and the pressure is completely released.
When the air suction mechanism is adopted, due to the arrangement of the elastic piece, the first flange plate can be superposed and applied with force when the first flange plate is closed, the sealing performance of the first flange plate on the air suction opening in the long-term use process is improved, the impact caused by too fast contraction can be prevented in the opening process of the first flange plate, and the service life of the mechanism is prolonged;
in addition, through the matching arrangement of the first flange plate and the 2 second flange plates with different sizes, on the basis of realizing the vacuumizing of the vacuum chamber body, the accurate adjustment of the air pressure in the vacuum chamber body is further realized, and the pressure can be gradually released in the vacuum breaking process, so that the damage to products or equipment parts caused by the sudden change of the air pressure in the vacuum chamber body is avoided, the condition that the second flange plate cannot be pulled open due to insufficient output power of the air cylinder is avoided, the requirements on the output power of the air cylinder are reduced, the consumption and the energy are reduced, the impact load on the vacuum chamber body can be reduced, and the service life of the equipment is prolonged;
in addition, the piston rod of the air cylinder can be ensured to always keep constant driving force in the long-term reciprocating motion process, and the condition that the flange plate cannot be driven to seal the air suction opening due to air blocking is avoided.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A vacuum generating system for a sealed chamber, comprising: the device is characterized in that the device is arranged on a vacuum cabin body (1), an air suction opening (2) and two air inlets (3) are formed in the outer surface of one side of the vacuum cabin body (1), a flange part (4) extending inwards in the radial direction is formed in each of the inner walls of one ends, close to the inside of the vacuum cabin body (1), of the air suction opening (2) and the air inlets (3), a first flange plate (5) is embedded into the air suction opening (2), a second flange plate (6) is embedded into the air inlets (3), the end faces of one ends of the first flange plate (5) and one end face of one end of the second flange plate (6) are in surface contact with the end face of the corresponding flange part (4), and the other ends of the first flange plate (5) and the second flange plate (6) are connected with piston rods of a first air cylinder (7) and a second air cylinder (8) which are correspondingly arranged;
the vacuum bin is characterized in that a connecting seat (9) is installed on the air suction port (2), one end face of the connecting seat (9) is connected with the vacuum bin body (1), a first air cylinder (7) is installed on the other end face of the connecting seat (9), a piston rod of the first air cylinder (7) is connected with a first flange plate (5) through a first mandrel (10), a first through hole (11) communicated with the air suction port (2) is formed in the connecting seat (9) in the direction of the first mandrel (10), the first mandrel (10) is telescopically arranged in the first through hole (11), an air suction hole (12) communicated with the first through hole (11) is further formed in the connecting seat (9), and the air suction hole (12) is used for being connected with a vacuum pump;
an elastic piece (14) is sleeved on the first mandrel (10), one end of the elastic piece (14) close to the first flange plate (5) is in contact with an outer flange part (101) positioned at the tail end of the first mandrel (10), and the other end of the elastic piece (14) is connected with a shell of the first cylinder (7) in an extrusion manner;
a cushion block (16) is arranged between the first air cylinder (7) and the connecting seat (9), the other end of the elastic part (14) is connected with the cushion block (16) in an extrusion manner, a second through hole (17) through which a piston rod of the first air cylinder (7) and the first mandrel (10) can penetrate is formed in the center of the cushion block (16), and an air outlet hole (18) communicated with the second through hole (17) is formed in the outer end face of the cushion block (16);
the ratio of the outer diameters of the 2 second flange plates (6) respectively embedded into the two air inlets (3) is 5: 2~3, when the vacuum cabin body (1) is in the pressure release state, pull out the second ring flange (6) that the external diameter is little from air inlet (3) that correspond through second cylinder (8), pull out the second ring flange (6) that the external diameter is big from air inlet (3) that correspond again.
2. The vacuum generating system for a sealed chamber of claim 1, wherein: an air pumping seat (13) is arranged on the air pumping hole (12).
3. The vacuum generating system for a sealed chamber of claim 1, wherein: the elastic member (14) is a bellows-shaped elastic member.
4. The vacuum generating system for a sealed chamber of claim 1, wherein: a supporting gasket (15) is arranged between the shell of the first air cylinder (7) and the elastic part (14), and the supporting gasket (15) is sleeved on the first mandrel (10) and is in extrusion contact with the end face of the elastic part (14).
5. The vacuum generating system for a sealed chamber of claim 4, wherein: the supporting gasket (15) is fixedly arranged in the air suction port (2).
6. The vacuum generating system for a sealed chamber of claim 1, wherein: the cushion block (16) comprises a main body part (161) close to the first air cylinder (7) and a convex part (162) embedded in the air suction port (2).
7. The vacuum generating system for a sealed chamber of claim 1, wherein: a screw penetrates through the first air cylinder (7) and the cushion block (16) in sequence to be connected with the connecting seat (9), and the first air cylinder (7) and the cushion block (16) are installed on the connecting seat (9).
8. The vacuum generating system for a sealed chamber of claim 1, wherein: and an annular groove for embedding a sealing ring is formed in the end face, connected with the vacuum cabin body (1), of the connecting seat (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011635519.9A CN114687992B (en) | 2020-12-31 | 2020-12-31 | Vacuum generating system for sealing cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011635519.9A CN114687992B (en) | 2020-12-31 | 2020-12-31 | Vacuum generating system for sealing cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114687992A true CN114687992A (en) | 2022-07-01 |
| CN114687992B CN114687992B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011635519.9A Active CN114687992B (en) | 2020-12-31 | 2020-12-31 | Vacuum generating system for sealing cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114687992B (en) |
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| CN108799054A (en) * | 2018-08-10 | 2018-11-13 | 合肥市恒昌自动化控制有限责任公司 | A kind of intelligent vacuum pump with vacuum detecting function |
| CN209025807U (en) * | 2019-04-09 | 2019-06-25 | 深圳市欣嘉盛五金有限公司 | A kind of simple type vacuum suction device |
| CN213843908U (en) * | 2020-12-31 | 2021-07-30 | 苏州特瑞特机器人有限公司 | Vacuum suction breaking mechanism |
| CN114688316A (en) * | 2020-12-31 | 2022-07-01 | 苏州卓兆点胶股份有限公司 | Energy-saving vacuum suction mechanism |
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2020
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| US20150052855A1 (en) * | 2012-03-16 | 2015-02-26 | Boru International Co., Ltd. | Vacuum apparatus |
| CN203892709U (en) * | 2014-03-25 | 2014-10-22 | 上海天马微电子有限公司 | Vacuum valve and vacuum pumping equipment |
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| CN213843908U (en) * | 2020-12-31 | 2021-07-30 | 苏州特瑞特机器人有限公司 | Vacuum suction breaking mechanism |
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| CN114687992B (en) | 2024-04-30 |
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Address after: No. 189, Wutaishan Road, High tech Zone, Suzhou City, Jiangsu Province, 215011 Applicant after: Suzhou Zhuozhao dispensing Co.,Ltd. Address before: 215011 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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