CN114687992B - Vacuum generating system for sealing cavity - Google Patents
Vacuum generating system for sealing cavity Download PDFInfo
- Publication number
- CN114687992B CN114687992B CN202011635519.9A CN202011635519A CN114687992B CN 114687992 B CN114687992 B CN 114687992B CN 202011635519 A CN202011635519 A CN 202011635519A CN 114687992 B CN114687992 B CN 114687992B
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- Prior art keywords
- air
- flange plate
- cylinder
- vacuum
- mandrel
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- 238000007789 sealing Methods 0.000 title claims abstract description 23
- 238000000605 extraction Methods 0.000 claims abstract description 46
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 13
- 230000007774 longterm Effects 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000006850 spacer group Chemical class 0.000 description 1
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 sealing a cavity, which is arranged on a vacuum bin body, wherein an extraction opening and two air inlets are formed in the outer surface of one side of the vacuum bin body, a flange part extending inwards in the radial direction is arranged on the inner wall of one end, close to the inside of the vacuum bin body, of each of the extraction opening and the air inlets, a first flange plate is embedded into the extraction opening, a second flange plate is embedded into the air inlets, a connecting seat is arranged on the extraction opening, a piston rod of a first cylinder is connected with the first flange plate through a first mandrel, an elastic piece is sleeved on the first mandrel, one end, close to the first flange plate, of the elastic piece 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 mode. The invention can improve the sealing performance of the first flange plate to the air extraction opening in the long-term use process, can prevent collision caused by too fast shrinkage in the opening process of the first flange plate, 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 field of product dispensing and packaging, and utilizes the acting force of negative pressure to firstly pump away the air in the vacuum box in the pouring process, then the product is poured, glue can be quickly infiltrated into the product, and the pouring impact and the bubbles generated by the contact of the glue and the product can be quickly pumped away under the action of the negative pressure, so that the high performance of the product is ensured. In the prior art, when the cavity is vacuumized, the vacuum value in the cavity is unstable due to the fact that the pressure in the cavity is greatly different from the external pressure and the time delay property is provided when the valve is 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 reduced.
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 on an extraction opening in the long-term use process, prevent collision caused by too fast shrinkage in the opening process of the first flange plate and prolong the service life of a mechanism.
In order to achieve the above purpose, the invention adopts the following technical scheme: the vacuum generating system for sealing the cavity is arranged on a vacuum bin body, an air extracting opening and two air inlets are formed in the outer surface of one side of the vacuum bin body, a flange part extending inwards in the radial direction is arranged on the inner wall of one end, close to the inside of the vacuum bin body, of each air inlet, a first flange plate is embedded into the air extracting opening, a second flange plate is embedded into the air inlet, 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 piston rods of a first cylinder and a second cylinder which are correspondingly arranged;
A connecting seat is arranged on the air extraction opening, one end face of the connecting seat is connected with the vacuum bin body, the first air cylinder is arranged on the other end face of the connecting seat, a piston rod of the first air cylinder is connected with the first flange plate through a first mandrel, a first through hole communicated with the air extraction opening is formed in the connecting seat along the direction of the first mandrel, the first mandrel is arranged in the first through hole in a telescopic manner, and an air extraction hole communicated with the first through hole is further formed in the connecting seat and is used for being connected with a vacuum pump;
the elastic piece is sleeved on the first mandrel, one end, close to the first flange, of the elastic piece is contacted 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 the shell of the first cylinder in an extrusion mode;
A cushion block is arranged between the first cylinder and the connecting seat, the other end of the elastic piece is connected with the cushion block in an extrusion mode, a second through hole for a piston rod of the first 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;
the ratio of the outer diameters of the 2 second flanges respectively embedded into the two air inlets is 5: 2-3, when the vacuum bin body is in a pressure release state, the second flange plate with the small outer diameter is pulled out of the corresponding air inlet through the second cylinder, and then the second flange plate with the large outer diameter is pulled out of the corresponding air inlet.
The further improved scheme in the technical scheme is as follows:
1. In the scheme, the air suction hole is provided with an air suction seat.
2. In the above scheme, the elastic piece is a bellows-shaped elastic piece.
3. In the above scheme, a supporting washer is arranged between the shell of the first cylinder and the elastic piece, and the supporting washer 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 extraction opening.
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 extraction opening.
6. In the scheme, a screw sequentially penetrates through the first cylinder and the cushion block to be connected with the connecting seat, and the first cylinder and the cushion block are mounted on the connecting seat.
7. In the scheme, an annular groove for embedding the sealing ring is formed in the end face, connected with the vacuum bin body, of the connecting seat.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the vacuum generating system for the sealed cavity, the piston rod of the cylinder is connected with the first flange plate through the mandrel, the through hole communicated with the extraction opening is formed in the connecting seat along the mandrel, the mandrel is telescopically arranged in the through hole, an elastic piece is sleeved on the mandrel, one end, close to the first flange plate, of the elastic piece is in contact with the outer flange part positioned at the tail end of the mandrel, the other end of the elastic piece is in extrusion connection with the shell of the cylinder, and through the arrangement of the elastic piece, the first flange plate can be subjected to superposition force application when the first flange plate is closed, the sealing performance of the first flange plate on the extraction opening in the long-term use process is improved, impact caused by too fast shrinkage in the first flange plate opening process is prevented, 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 flanges respectively embedded into two air inlets is 5: 2-3, when the vacuum bin body is in the pressure release state, pull out the second ring flange that the external diameter is little from corresponding air inlet through the second cylinder, pull out the second ring flange that the external diameter is big from corresponding air inlet again, through the cooperation setting between first ring flange and the different 2 second ring flanges of size, on the basis of realizing evacuating the vacuum bin body, further realized the accurate regulation to the internal atmospheric pressure of vacuum bin, still can be in the step-by-step pressure release of broken vacuum process, both avoid the internal atmospheric pressure of vacuum bin suddenly changing and damage product or equipment part, can avoid pulling the condition that does not open the second ring flange because of cylinder output power is not enough again, both reduced the requirement to the cylinder output power, the consumption reduction is energy-conserving, can reduce the impact load to the vacuum bin body again, extension equipment life.
3. The vacuum generating system for the sealed cavity is characterized in that a cushion block is arranged between a first cylinder and a connecting seat, the other end of the elastic piece is connected with the cushion block in an extrusion mode, a second through hole for a piston rod of the first cylinder and a first mandrel to penetrate is formed in the center of the cushion block, an air outlet hole communicated with the second through hole is formed in the outer end face of the cushion block, the piston rod of the cylinder can always keep constant driving force in the long-term reciprocating motion process, and the situation that a flange plate cannot be driven to seal an extraction opening due to air holding is avoided.
Drawings
FIG. 1 is a schematic diagram of a vacuum generating system for sealing a chamber according to the present invention;
FIG. 2 is a schematic cross-sectional view of a vacuum generating system for sealing a chamber according to the present invention;
FIG. 3 is a schematic diagram of a block diagram of a vacuum generating system for sealing a chamber according to the present invention;
Fig. 4 is a schematic diagram of a second structure of a spacer block in the vacuum generating system for sealing a cavity according to the present invention.
In the above figures: 1. a vacuum bin body; 2. an extraction opening; 3. an air inlet; 4. a flange portion; 5. a first flange; 6. a second flange; 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 suction hole; 13. an air extraction seat; 14. an elastic member; 15. a support washer; 16. a cushion block; 161. a main body portion; 162. a boss; 17. a second through hole; 18. and an air outlet hole.
Detailed Description
In the description of this patent, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the 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 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 this patent will be understood by those of ordinary skill in the art in a specific context.
Example 1: the vacuum generation system for sealing the cavity is arranged on a vacuum bin body 1, an extraction opening 2 and two air inlets 3 are formed in the outer surface of one side of the vacuum bin body 1, a flange part 4 extending inwards in the radial direction is arranged on the inner wall of each of the extraction opening 2 and the air inlets 3, which is close to one end of the inside of the vacuum bin body 1, a first flange plate 5 is embedded into the extraction opening 2, a second flange plate 6 is embedded into the air inlets 3, the end surfaces of one end of each of the first flange plate 5 and the second flange plate 6 are contacted with the end surfaces 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 piston rods of a first cylinder 7 and a second cylinder 8 which are correspondingly arranged;
a connecting seat 9 is arranged on the air extraction opening 2, one end surface of the connecting seat 9 is connected with the vacuum bin body 1, the first air cylinder 7 is arranged on the other end surface of the connecting seat 9, a piston rod of the first air cylinder 7 is connected with the first flange plate 5 through a first mandrel 10, a first through hole 11 communicated with the air extraction opening 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 extraction hole 12 communicated with the first through hole 11 is formed in the connecting seat 9, and the air extraction hole 12 is used for being connected with a vacuum pump;
An elastic piece 14 is sleeved on the first mandrel 10, one end, close to the first flange 5, of the elastic piece 14 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 mode;
a cushion block 16 is arranged between the first air cylinder 7 and the connecting seat 9, the other end of the elastic piece 14 is connected with the cushion block 16 in an extrusion mode, a piston rod of the first air cylinder 7 and a second through hole 17 through which the first mandrel 10 penetrates are 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 between the 2 second flanges 6 respectively embedded in the two air inlets 3 is 5:2, when the vacuum chamber body 1 is in a pressure release state, the second flange 6 with small outer diameter is pulled out of the corresponding air inlet 3 through the second cylinder 8, and then the second flange 6 with large outer diameter is pulled out of the corresponding air inlet 3.
The air suction hole 12 is provided with an air suction seat 13.
The elastic member 14 is a bellows-like elastic member.
A supporting washer 15 is arranged between the shell of the first cylinder 7 and the elastic piece 14, and the supporting washer 15 is sleeved on the first mandrel 10 and is in extrusion contact with the end surface of the elastic piece 14.
An annular groove for embedding a sealing ring is formed in the end face, connected with the vacuum bin body 1, of the connecting seat 9.
Example 2: the vacuum generation system for sealing the cavity is arranged on a vacuum bin body 1, an extraction opening 2 and two air inlets 3 are formed in the outer surface of one side of the vacuum bin body 1, a flange part 4 extending inwards in the radial direction is arranged on the inner wall of each of the extraction opening 2 and the air inlets 3, which is close to one end of the inside of the vacuum bin body 1, a first flange plate 5 is embedded into the extraction opening 2, a second flange plate 6 is embedded into the air inlets 3, the end surfaces of one end of each of the first flange plate 5 and the second flange plate 6 are contacted with the end surfaces 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 piston rods of a first cylinder 7 and a second cylinder 8 which are correspondingly arranged;
a connecting seat 9 is arranged on the air extraction opening 2, one end surface of the connecting seat 9 is connected with the vacuum bin body 1, the first air cylinder 7 is arranged on the other end surface of the connecting seat 9, a piston rod of the first air cylinder 7 is connected with the first flange plate 5 through a first mandrel 10, a first through hole 11 communicated with the air extraction opening 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 extraction hole 12 communicated with the first through hole 11 is formed in the connecting seat 9, and the air extraction hole 12 is used for being connected with a vacuum pump;
An elastic piece 14 is sleeved on the first mandrel 10, one end, close to the first flange 5, of the elastic piece 14 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 mode;
a cushion block 16 is arranged between the first air cylinder 7 and the connecting seat 9, the other end of the elastic piece 14 is connected with the cushion block 16 in an extrusion mode, a piston rod of the first air cylinder 7 and a second through hole 17 through which the first mandrel 10 penetrates are 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 between the 2 second flanges 6 respectively embedded in the two air inlets 3 is 5:3, when the vacuum bin body 1 is in a pressure release state, the second flange 6 with the small outer diameter is pulled out of the corresponding air inlet 3 through the second cylinder 8, and then the second flange 6 with the large outer diameter is pulled out of the corresponding air inlet 3.
The support washer 15 is fixedly disposed in the air extraction opening 2.
The cushion block 16 includes a main body portion 161 adjacent to the first cylinder 7 and a boss portion 162 fitted into the suction port 2.
A screw sequentially passes through the first cylinder 7 and the cushion block 16 to be connected with the connecting seat 9, and the first cylinder 7 and the cushion block 16 are arranged on the connecting seat 9.
Working principle:
The first cylinder drives the first flange plate to stretch to control the opening and closing of the air suction flow passage, so that the operation of vacuumizing the vacuum cabin body is controlled;
The second flange plate is driven to stretch through the 2 second cylinders to control the opening and closing of the air inlet flow channel, and the air pressure change and the air pressure micro-change in the vacuum bin body are respectively controlled;
when the first cylinder pulls the first flange plate away from the air extraction opening, the external connection air pump starts to work to extract air from the vacuum bin body;
When the air pressure in the vacuum bin body is larger than the preset value of the air pressure sensor arranged on the vacuum bin body, the first cylinder pushes the first flange plate into the air extraction opening;
pulling the second flange plate with smaller outer diameter away from the air inlet, and finely adjusting the air pressure in the vacuum bin body until the air pressure reaches a preset value;
when the operation in the vacuum bin body is completed, 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 bin body 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 device is adopted, the elastic piece is arranged, so that the first flange can be subjected to superposition force application when the first flange is closed, the sealing performance of the first flange to the extraction opening in the long-term use process is improved, the impact caused by too fast shrinkage in the first flange opening process can be prevented, and the service life of the mechanism is prolonged;
in addition, through the cooperation setting between the first flange plate and 2 second flange plates with different sizes, on the basis of realizing vacuumizing the vacuum bin body, the accurate regulation of the air pressure in the vacuum bin body is further realized, and the gradual pressure release in the vacuum breaking process can be realized, so that the phenomenon that products or equipment parts are damaged due to sudden changes of the air pressure in the vacuum bin body is avoided, the situation that the second flange plates cannot be pulled open due to insufficient output power of the air cylinder is avoided, the requirement on the output power of the air cylinder is reduced, the consumption is reduced, the energy is saved, the impact load on the vacuum bin body is 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 situation that the flange plate cannot be driven to seal the extraction opening due to air holding is avoided.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (5)
1. A vacuum generating system for sealing a cavity, characterized by: the vacuum chamber is arranged on a vacuum chamber body (1), an extraction opening (2) and two air inlets (3) are formed in the outer surface of one side of the vacuum chamber body (1), a flange part (4) extending inwards in the radial direction is arranged on the inner wall, close to one end inside the vacuum chamber body (1), of each of the extraction opening (2) and the air inlets (3), a first flange plate (5) is embedded into the extraction opening (2), a second flange plate (6) is embedded into the air inlets (3), the end faces of one end of each of the first flange plate (5) and the second flange plate (6) are in surface contact with the end faces 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 cylinder (7) and a second cylinder (8) which are correspondingly arranged;
a connecting seat (9) is arranged on the air extraction opening (2), one end face of the connecting seat (9) is connected with the vacuum bin body (1), a first air cylinder (7) is arranged 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 plate (5) through a first mandrel (10), a first through hole (11) communicated with the air extraction opening (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 extraction hole (12) communicated with the first through hole (11) is formed in the connecting seat (9), the air extraction hole (12) is used for being connected with a vacuum pump, and an annular groove for embedding a sealing ring is formed in the end face, connected with the vacuum bin body (1), of the connecting seat (9);
An elastic piece (14) is sleeved on the first mandrel (10), one end, close to the first flange plate (5), of the elastic piece (14) is in contact with an outer flange part (101) positioned at the tail end of the first mandrel (10), the other end of the elastic piece (14) is connected with a shell of the first air cylinder (7) in an extrusion mode, a supporting gasket (15) is arranged between the shell of the first air cylinder (7) and the elastic piece (14), the supporting gasket (15) is sleeved on the first mandrel (10) and in extrusion contact with the end face of the elastic piece (14), and the supporting gasket (15) is fixedly arranged in the air extraction opening (2);
a cushion block (16) is arranged between the first air cylinder (7) and the connecting seat (9), the other end of the elastic piece (14) is connected with the cushion block (16) in an extrusion mode, 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 flanges (6) respectively embedded into the two air inlets (3) is 5: 2-3, when the vacuum bin body (1) is in a pressure release state, the second flange plate (6) with the small outer diameter is pulled out of the corresponding air inlet (3) through the second air cylinder (8), and then the second flange plate (6) with the large outer diameter is pulled out of the corresponding air inlet (3).
2. The vacuum generating system for sealing a cavity according to claim 1, wherein: an air extraction seat (13) is arranged on the air extraction hole (12).
3. The vacuum generating system for sealing a cavity according to claim 1, wherein: the elastic member (14) is a bellows-like elastic member.
4. The vacuum generating system for sealing a cavity according to claim 1, wherein: the cushion block (16) comprises a main body part (161) close to the first cylinder (7) and a protruding part (162) embedded in the extraction opening (2).
5. The vacuum generating system for sealing a cavity according to claim 1, wherein: a screw sequentially penetrates through the first air cylinder (7) and the cushion block (16) 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).
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 |
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| Publication Number | Publication Date |
|---|---|
| CN114687992A CN114687992A (en) | 2022-07-01 |
| CN114687992B true 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 |
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| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101144500B1 (en) * | 2012-03-16 | 2012-05-11 | 김상영 | Vacuum apparatus |
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2020
- 2020-12-31 CN CN202011635519.9A patent/CN114687992B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| CN114687992A (en) | 2022-07-01 |
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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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