CN114671098A - Intelligent fresh-keeping packaging equipment and fresh-keeping packaging method - Google Patents
Intelligent fresh-keeping packaging equipment and fresh-keeping packaging method Download PDFInfo
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- CN114671098A CN114671098A CN202210444566.8A CN202210444566A CN114671098A CN 114671098 A CN114671098 A CN 114671098A CN 202210444566 A CN202210444566 A CN 202210444566A CN 114671098 A CN114671098 A CN 114671098A
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- rod
- fixed cylinder
- packaging bag
- heating block
- rack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B67/00—Apparatus or devices facilitating manual packaging operations; Sack holders
- B65B67/02—Packaging of articles or materials in containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/02—Packaging agricultural or horticultural products
- B65B25/04—Packaging fruit or vegetables
- B65B25/041—Packaging fruit or vegetables combined with their conservation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/06—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Vacuum Packaging (AREA)
Abstract
The invention relates to the technical field of fresh-keeping packaging, and discloses intelligent fresh-keeping packaging equipment and a fresh-keeping packaging method, wherein the intelligent fresh-keeping packaging equipment comprises a packaging bag, the packaging bag is connected with a pressing plate, the pressing plate is connected with a fixed rod, the fixed rod is connected with a fixed cylinder, the fixed rod penetrates through the fixed cylinder, the fixed rod is connected with a handle, the handle is connected with a first spring, the first spring is connected with the fixed cylinder, the fixed cylinder is connected with a piston, the piston is connected with a supporting rod, the supporting rod is connected with a supporting plate, the supporting plate is connected with a first sliding rod, the first sliding rod penetrates through a supporting plate, the first sliding rod is arranged on a wall surface, so that the first sliding rod can obtain supporting force and limit the supporting plate, and the piston can extract air in a closed cavity formed between the packaging bag and the fixed cylinder, so that the inside of the packaging bag is in a state close to vacuum, and the fresh-keeping time of the food inside the packaging bag is prolonged.
Description
Technical Field
The invention relates to the technical field of freshness preservation packaging, in particular to intelligent freshness preservation packaging equipment and a freshness preservation packaging method.
Background
Vegetables, fruits, grains, livestock and poultry meat such as slaughtered pigs, cattle, sheep, chickens, ducks, geese and the like and cooked food products thereof are daily food which people rely on to live, and have huge demand and large consumption. Because a large amount of oxygen and various bacteria exist in the air of the nature, the materials are oxidized by the oxygen and are decayed by the bacteria when being used as food, the initial stage is not serious, the changes of the shape, color, luster, smell and the like of the food are not obvious, and the food can be eaten and is called as a 'fresh-keeping period'; after that, the food has obvious color and odor change, and can be eaten or discarded; after that, the food is deformed, changed into color and stink, becomes garbage and needs to be removed quickly. The food is greatly lost due to the destructive action of oxygen and bacteria, and for a long time, common people preserve the food by using salt soaking, smoking, sun drying, baking and other methods to reach the edible degree, but can not reach the requirements of 'freshness' and 'preservation', if the food needs to be fresh, the food is only fresh for a short time by using a simple method of 'collecting the food at present', and the 'vacuum packaging machine' is invented in modern times; when the existing vacuum packaging machine is used, a plurality of power sources are needed, so that the cost is high; therefore, an intelligent freshness protection package device and a freshness protection package method are needed.
Disclosure of Invention
The invention aims to provide intelligent freshness protection packaging equipment and a freshness protection packaging method, and the purpose of solving the problems in the background art is achieved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an intelligence fresh-keeping equipment for packing, includes the wrapping bag, the wrapping bag is connected with the clamp plate, and the clamp plate is connected with the dead lever, and the dead lever is connected with a fixed section of thick bamboo, and the dead lever runs through a fixed section of thick bamboo setting, and the dead lever is connected with the handle, and the handle is connected with spring one, and spring one is connected with a fixed section of thick bamboo, a fixed section of thick bamboo and piston connection, and the piston is connected with the bracing piece, and the bracing piece is connected with the backup pad.
Preferably, the backup pad is connected with the slide bar one, and a slide bar one runs through the backup pad setting, and the slide bar one is installed on the wall for the slide bar one can obtain the holding power, carries on spacingly to the backup pad simultaneously.
Preferably, dwang one and gear connection, gear and rack toothing, the rack is connected with second slide bar, and second slide bar runs through the rack setting, and second slide bar is installed on the wall for second slide bar can obtain the holding power.
Preferably, the rack is connected with the first heating block, the rack is connected with the connecting rope, the connecting rope is connected with the positioning rod, and the positioning rod is installed on the wall surface, so that the positioning rod can limit the connecting rope.
Preferably, the connecting rope is wound on the positioning rod and connected with the first connecting rod, the first connecting rod is connected with the second spring, the second spring is installed in the first positioning plate, and the first connecting rod is connected with the first positioning plate, so that the second spring can obtain supporting force and simultaneously provides pulling force to one side of the ground for the first connecting rod.
Preferably, a first connecting rod penetrates through a first positioning plate, the first positioning plate is connected with the fixed cylinder, and the first positioning plate is installed on the ground, so that the first positioning plate can provide supporting force for the fixed cylinder.
Preferably, the first connecting rod is connected with the second connecting rod, the second connecting rod is connected with the second heating block, the second heating block is located under the first heating block, and the five-centimeter-moving rack of the piston descends by one centimeter, so that when the rack drives the first heating block and the second heating block to move, the packaging bag can be always in a tight vacuum state.
A freshness protection package method of intelligent freshness protection package equipment comprises the following steps:
s1: firstly, pushing the handle to one side of the fixed cylinder, and then putting the packaging bag between the pressing plate and the fixed cylinder;
s2: loosening the handle, then starting the motor to rotate forward, and pumping out the air in the packaging bag;
s3: meanwhile, the motor drives the first heating block and the second heating block to move downwards, and the packaging bag is subjected to hot melting packaging;
s4: the motor rotates reversely, and then the packaged packaging bag is taken out.
The invention provides intelligent fresh-keeping packaging equipment and a fresh-keeping packaging method. The method has the following beneficial effects:
(1) the invention is provided with the packaging bag, the motor, the rotating rod I, the sliding rod I, the supporting plate, the supporting rod, the piston and the fixed cylinder, wherein the piston pumps out air in a closed cavity formed between the packaging bag and the fixed cylinder, so that the inside of the packaging bag is in a state close to vacuum, and the fresh-keeping time of food in the packaging bag is prolonged.
(2) According to the invention, the handle, the first spring, the sealing ring and the pressing plate are arranged, and the sealing ring is arranged between the fixed rod and the fixed cylinder, so that the sealing property of the fixed cylinder is improved, the piston can be closer to a vacuum state when the air is pumped, and the fresh-keeping time of food in the packaging bag is prolonged.
(3) According to the invention, the gear, the rack, the sliding rod II, the heating block I, the spring II, the connecting rod I, the connecting rod II, the positioning rod and the connecting rope are arranged, so that the heating block I and the heating block II are close to each other until the heating block I and the heating block II are contacted with each other, the packaging bag is subjected to hot melting packaging, the packaging bag can be closer to a vacuum state, and the fresh-keeping time of food in the packaging bag is prolonged.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a front sectional view of the present invention.
Fig. 3 is a structural view of the gear of the present invention.
FIG. 4 is a block diagram of a positioning rod according to the present invention.
Fig. 5 is an enlarged view of the present invention a.
In the figure: the packaging bag comprises a packaging bag 1, a motor 2, a rotating rod I3, a sliding rod I4, a supporting plate 5, a supporting rod 6, a piston 7, a handle 8, a spring I9, a sealing ring 10, a pressing plate 11, a fixing cylinder 12, a gear 13, a rack 14, a sliding rod II 15, a heating block I16, a spring II 17, a connecting rod I18, a connecting rod II 19, a positioning rod 20 and a connecting rope 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 5, the present invention provides a technical solution: an intelligent fresh-keeping packaging device comprises a packaging bag 1, wherein the outer wall of the packaging bag 1 is abutted against the outer wall of a pressing plate 11, the outer wall of the pressing plate 11 is fixedly connected with one end of a fixed rod, the outer wall of the fixed rod is slidably connected with the inner wall of a fixed cylinder 12, a sealing ring 10 is fixedly arranged on the inner wall of one side, in contact with the fixed rod, of the fixed cylinder 12, one end of the fixed rod penetrates through the outer wall of the fixed cylinder 12 and extends to the inner part of the fixed cylinder 12, the other end of the fixed rod is fixedly connected with the outer wall of a handle 8, the outer wall of the handle 8 is fixedly connected with one end of a spring I9, the other end of the spring I9 is fixedly connected with the outer wall of the fixed cylinder 12, the handle 8, the spring I9, the sealing ring 10 and the pressing plate 11 are arranged, the handle 8 is pushed to one side of the fixed cylinder 12, the handle 8 drives the fixed rod to move, the pressing plate 11 is driven by the fixed rod to move, and then the packaging bag 1 is placed between the pressing plate 11 and the fixed cylinder 12, then the handle 8 is loosened, the pressing plate 11 is driven to move towards one side of the fixed cylinder 12 under the action of the first spring 9 to press the packaging bag 1 tightly, the sealing ring 10 is arranged between the fixed rod and the fixed cylinder 12 to improve the sealing performance of the fixed cylinder 12, so that the piston 7 can be closer to a vacuum state when air is pumped, the fresh-keeping time of food in the packaging bag 1 is prolonged, the inner wall of the fixed cylinder 12 is in sliding connection with the outer wall of the piston 7, the inner wall of one side, which is in contact with the piston 7, of the fixed cylinder 12 is sealed, the outer wall of the piston 7 is fixedly connected with one end of the supporting rod 6, the other end of the supporting rod 6 is fixedly connected with the outer wall of the supporting plate 5, the inner wall of the supporting plate 5 is in sliding connection with the outer wall of the first sliding rod 4, one end of the first sliding rod 4 penetrates through the outer wall of the supporting plate 5 to be arranged outside the supporting plate 5, and one end of the first sliding rod 4 is fixedly arranged on the wall surface, by arranging the packaging bag 1, the motor 2, the rotating rod one 3, the sliding rod one 4, the supporting plate 5, the supporting rod 6, the piston 7 and the fixed cylinder 12, the rotating rod one 3 is driven by the motor 2 to rotate, the rotating rod one 3 drives the supporting plate 5 to rotate, the sliding rod one 4 limits the supporting plate 5, so that the supporting plate 5 can slide along the sliding rod one 4, the supporting plate 5 drives the supporting rod 6 to move, the supporting rod 6 drives the piston 7 to move, the piston 7 pumps out air in a closed cavity formed between the packaging bag 1 and the fixed cylinder 12, the packaging bag 1 is in a near vacuum state, the fresh-keeping time of food in the packaging bag 1 is prolonged, the inner wall of the supporting plate 5 is in threaded connection with the outer wall of the rotating rod one 3, one end of the rotating rod one 3 penetrates through the outer wall of the supporting plate 5 to extend to the outer part of the supporting plate 5, and the outer surface of one side of the rotating rod one 3 is in threaded arrangement, one end of a rotating rod I3 is fixedly connected with the output end of a motor 2 through a coupler, the motor 2 is fixedly installed in a motor box, the motor box is fixedly installed on a wall surface, one end of the rotating rod I3 is fixedly connected with the outer wall of a gear 13, the gear 13 is meshed with a rack 14, the inner wall of the rack 14 is slidably connected with the outer wall of a sliding rod II 15, one end of the sliding rod II 15 penetrates through the outer wall of the rack 14 and extends to the inside of the rack 14, one end of the sliding rod II 15 is fixedly installed on the wall surface, the outer wall of the rack 14 is fixedly connected with the outer wall of a heating block I16, the outer wall of the rack 14 is fixedly connected with one end of a connecting rope 21, the outer wall of the connecting rope 21 is slidably connected with the outer wall of a positioning rod 20, one end of the positioning rod 20 is fixedly installed on the wall surface, the connecting rope 21 is wound on the positioning rod 20, one end of the connecting rope 21 is fixedly connected with the outer wall of a connecting rod I18, the outer wall of the connecting rod I18 is fixedly connected with one end of a spring II 17, the other end of the spring II 17 is fixedly arranged in the first positioning plate, the outer wall of the first connecting rod 18 is in sliding connection with the inner wall of the first positioning plate, one end of the first connecting rod 18 penetrates through the outer wall of the first positioning plate and extends to the inside of the first positioning plate, one end of the first positioning plate is fixedly connected with the outer wall of the fixed cylinder 12, one end of the first positioning plate is fixedly arranged on the ground, the outer wall of the first connecting rod 18 is fixedly connected with one end of the second connecting rod 19, the other end of the second connecting rod 19 is fixedly connected with the outer wall of the second heating block 16, the second heating block is positioned under the first heating block 16, the piston 7 moves five centimeters of the rack 14 and descends by one centimeter, the gear 13, the rack 14, the sliding rod II 15, the first heating block 16, the spring II 17, the first connecting rod 18, the second connecting rod 19, the positioning rod 20 and the connecting rope 21 are driven by the rotating rod I3, and the gear 13 is meshed with the rack 14, the rack 14 drives the heating block 16 to move, the rack 14 drives the connecting rope 21 to move simultaneously, the connecting rope 21 is limited through the positioning rod 20, the connecting rope 21 drives the connecting rod 18 to move towards one side close to the fixed cylinder 12, the connecting rod 18 drives the connecting rod 19 to move, the connecting rod 19 drives the heating block to move, the heating block 16 is driven, the heating block is driven to move until the heating block is contacted with each other, the packaging bag 1 is subjected to hot melting packaging, the packaging bag 1 can be closer to a vacuum state, and the fresh-keeping time of food in the packaging bag 1 is prolonged.
A freshness-keeping packaging method of intelligent freshness-keeping packaging equipment comprises the following steps:
s1: firstly, the handle 8 is pushed to one side of the fixed cylinder 12, and then the packaging bag 1 is placed between the pressing plate 11 and the fixed cylinder 12;
s2: loosening the handle 8, then starting the motor 2 to rotate forward, and pumping out the air in the packaging bag 1;
s3: meanwhile, the motor 2 drives the first heating block 16 and the second heating block to move downwards, and the packaging bag 1 is subjected to hot melting packaging;
s4: the motor 2 rotates reversely, and then the packaged packaging bag 1 is taken out.
When the packaging bag is used, the packaging bag 1, the motor 2, the rotating rod I3, the sliding rod I4, the supporting plate 5, the supporting rod 6, the piston 7 and the fixed cylinder 12 are arranged, the rotating rod I3 is driven to rotate by the motor 2, the supporting plate 5 is driven to rotate by the rotating rod I3, the supporting plate 5 is limited by the sliding rod I4, so that the supporting plate 5 can slide along the sliding rod I4, the supporting plate 5 drives the supporting rod 6 to move, the supporting rod 6 drives the piston 7 to move, the piston 7 pumps out air in a closed cavity formed between the packaging bag 1 and the fixed cylinder 12, the packaging bag 1 is in a near vacuum state, the fresh-keeping time of food in the packaging bag 1 is prolonged, the handle 8, the spring I9, the sealing ring 10 and the pressing plate 11 are arranged, the handle 8 is pushed to one side of the fixed cylinder 12, the handle 8 drives the fixed rod to move, the fixed rod drives the pressing plate 11 to move, and then the packaging bag 1 is placed between the pressing plate 11 and the fixed cylinder 12, then the handle 8 is loosened, the pressing plate 11 is driven to move towards one side of the fixed cylinder 12 under the action of the spring I9 to press the packaging bag 1, the sealing ring 10 is arranged between the fixed rod and the fixed cylinder 12 to improve the sealing performance of the fixed cylinder 12, so that the piston 7 can be closer to a vacuum state when air is pumped, the fresh-keeping time of food in the packaging bag 1 is prolonged, the gear 13, the rack 14, the sliding rod II 15, the heating block I16, the spring II 17, the connecting rod I18, the connecting rod II 19, the positioning rod 20 and the connecting rope 21 are arranged, the gear 13 is driven to rotate by the rotating rod I3, the gear 13 is meshed with the rack 14, the rack 14 drives the heating block I16 to move, meanwhile, the rack 14 drives the connecting rope 21 to move, the connecting rope 21 is limited by the positioning rod 20, so that the connecting rope 21 drives the connecting rod I18 to move towards one side close to the fixed cylinder 12, and the connecting rod I18 drives the connecting rod II 19 to move, the second connecting rod 19 drives the second heating block to move, so that the first heating block 16 and the second heating block are close to each other until contacting each other, the packaging bag 1 is subjected to hot melting packaging, the packaging bag 1 can be closer to a vacuum state, and the fresh-keeping time of food in the packaging bag 1 is prolonged.
In conclusion, although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an intelligence equipment for packing that keeps fresh, includes wrapping bag (1), its characterized in that: wrapping bag (1) is connected with clamp plate (11), and clamp plate (11) are connected with the dead lever, and the dead lever is connected with solid fixed cylinder (12), and the dead lever runs through solid fixed cylinder (12) and sets up, and the dead lever is connected with handle (8), and handle (8) are connected with spring (9), and spring (9) are connected with solid fixed cylinder (12), and solid fixed cylinder (12) are connected with piston (7), and piston (7) are connected with bracing piece (6), and bracing piece (6) are connected with backup pad (5).
2. The intelligent freshness protection package device of claim 1, wherein: the supporting plate (5) is connected with the first sliding rod (4), the first sliding rod (4) penetrates through the supporting plate (5), and the first sliding rod (4) is installed on the wall surface.
3. The intelligent freshness protection package device of claim 2, wherein: backup pad (5) are connected with dwang (3), and dwang (3) run through backup pad (5) and set up, and the surface screw thread of one side of dwang (3) sets up, and dwang (3) are connected with motor (2), and motor (2) are installed in the motor case, and the motor case is installed on the wall.
4. The intelligent freshness protection package device of claim 3, wherein: the rotating rod I (3) is connected with the gear (13), the gear (13) is meshed with the rack (14), the rack (14) is connected with the sliding rod II (15), the sliding rod II (15) penetrates through the rack (14) to be arranged, and the sliding rod II (15) is installed on the wall surface.
5. The intelligent freshness protection package device of claim 4, wherein: the rack (14) is connected with the first heating block (16), the rack (14) is connected with the connecting rope (21), the connecting rope (21) is connected with the positioning rod (20), and the positioning rod (20) is installed on the wall surface.
6. The intelligent freshness protection package device of claim 5, wherein: the connecting rope (21) is wound on the positioning rod (20), the connecting rope (21) is connected with the first connecting rod (18), the first connecting rod (18) is connected with the second spring (17), the second spring (17) is installed in the first positioning plate, and the first connecting rod (18) is connected with the first positioning plate.
7. The intelligent freshness protection package device of claim 6, wherein: the first connecting rod (18) penetrates through the first positioning plate, the first positioning plate is connected with the fixed cylinder (12), and the first positioning plate is installed on the ground.
8. The intelligent freshness protection package device of claim 7, wherein: the first connecting rod (18) is connected with the second connecting rod (19), the second connecting rod (19) is connected with the second heating block, the second heating block is located right below the first heating block (16), and the five-centimeter-moving rack (14) of the piston (7) descends by one centimeter.
9. The freshness protection package method of the intelligent freshness protection package device according to claims 1-8, comprising the following steps:
s1: firstly, the handle (8) is pushed to one side of the fixed cylinder (12), and then the packaging bag (1) is placed between the pressing plate (11) and the fixed cylinder (12);
s2: loosening the handle (8), then starting the motor (2) to rotate forward, and pumping out the air in the packaging bag (1);
s3: meanwhile, the motor (2) drives the first heating block (16) and the second heating block to move downwards, and the packaging bag (1) is subjected to hot melting packaging;
s4: the motor (2) rotates reversely, and then the packaged packaging bag (1) is taken out.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210444566.8A CN114671098A (en) | 2022-04-26 | 2022-04-26 | Intelligent fresh-keeping packaging equipment and fresh-keeping packaging method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210444566.8A CN114671098A (en) | 2022-04-26 | 2022-04-26 | Intelligent fresh-keeping packaging equipment and fresh-keeping packaging method |
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| CN114671098A true CN114671098A (en) | 2022-06-28 |
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| CN202210444566.8A Pending CN114671098A (en) | 2022-04-26 | 2022-04-26 | Intelligent fresh-keeping packaging equipment and fresh-keeping packaging method |
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|---|---|---|---|---|
| CN117104610A (en) * | 2023-10-17 | 2023-11-24 | 山东大易化工有限公司 | Negative pressure device of discharging port for organosilicon production |
| CN117104610B (en) * | 2023-10-17 | 2023-12-19 | 山东大易化工有限公司 | Negative pressure device of discharging port for organosilicon production |
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