CN113173304A - Lithium battery packaging machine - Google Patents
Lithium battery packaging machine Download PDFInfo
- Publication number
- CN113173304A CN113173304A CN202110611350.1A CN202110611350A CN113173304A CN 113173304 A CN113173304 A CN 113173304A CN 202110611350 A CN202110611350 A CN 202110611350A CN 113173304 A CN113173304 A CN 113173304A
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- Prior art keywords
- vacuum cavity
- lithium battery
- machine
- station
- vacuum
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Classifications
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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
- B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
- B65B65/003—Packaging lines, e.g. general layout
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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
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
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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
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
- B65B51/146—Closing bags
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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
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
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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
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/003—Arrangements to enable adjustments related to the packaging material
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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
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a lithium battery packaging machine, which comprises a closed-loop conveying track and is characterized in that: the closed-loop conveying track is provided with a bag feeding station, a sealing station, a bag discharging station, a plurality of vacuumizing stations and a plurality of liquid feeding and exhausting stations, the vacuumizing stations and the liquid feeding and exhausting stations are arranged in an alternating mode, each station is correspondingly provided with a vacuum cavity assembly, each vacuum cavity assembly is defined by a vacuum cavity and a vacuum cavity cover together to form a vacuum cavity, an organic clamp assembly and an ironing head assembly are arranged in the vacuum cavity, the vacuum cavity is connected and communicated with a vacuum gas distribution device of the packaging machine through a vacuum tube, and a liquid feeding tube is inserted into the vacuum cavity; when the electrolyte solution is added into the packaging bag in the vacuum cavity by the liquid adding pipe at the liquid adding exhaust station, the vacuum cavity is pumped with air from the outside. The invention is used for packaging the lithium battery, not only realizes the quick absorption of the lithium battery to the electrolyte solution, but also accurately controls the addition amount of the electrolyte solution so as to better ensure the quality of the lithium battery, improve the working efficiency and reduce the production cost.
Description
Technical Field
The invention relates to a lithium battery packaging machine for packaging a lithium battery.
Background
The lithium battery is a battery using lithium metal or lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution, and the lithium battery needs to be internally filled with the nonaqueous electrolyte in the production process. At present, the work of filling the electrolyte of lithium batteries is such that: the lithium battery is put into a packaging bag made of aluminum foil, the packaging bag is put into a special die, after the electrolyte solution required by the lithium battery is added into the packaging bag at one time, the die is vacuumized, and finally the packaging bag is sealed. The disadvantages are that: firstly, the lithium battery has low absorption speed to the electrolyte solution, low working efficiency and low production speed; secondly, the required electrolyte solution is added at one time, the packaging bag needs a larger accommodating space, namely, more allowance needs to be reserved at the position above a sealing line at the bag opening of the packaging bag, so that packaging materials are wasted, and the packaging materials are expensive, so that the production cost is increased; thirdly, the electrolyte solution is easy to overflow out of the packaging bag, so that the quantity of the electrolyte solution absorbed by the lithium battery is deviated, and the quality of the lithium battery is difficult to be well ensured; fourth, the lithium cell of different specifications need have not equidimension wrapping bag, changes the mould cycle length, influences work efficiency.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the lithium battery packaging machine which not only realizes the quick absorption of the lithium battery to the electrolyte solution, but also accurately controls the addition amount of the electrolyte solution so as to better ensure the quality of the lithium battery, improve the working efficiency and reduce the production cost.
The invention is implemented by the following technical scheme:
lithium cell packagine machine, including closed loop delivery track, its characterized in that: the closed-loop conveying track is provided with a bag feeding station, a sealing station, a bag discharging station, a plurality of vacuumizing stations and a plurality of liquid feeding and exhausting stations, the vacuumizing stations and the liquid feeding and exhausting stations are arranged in an alternating mode, each station is correspondingly provided with a vacuum cavity assembly, each vacuum cavity assembly is defined by a vacuum cavity and a vacuum cavity cover together to form a vacuum cavity, an organic clamp assembly and an ironing head assembly are arranged in the vacuum cavity, the vacuum cavity is connected and communicated with a vacuum gas distribution device of the packaging machine through a vacuum tube, and a liquid feeding tube is inserted into the vacuum cavity; when the electrolyte solution is added into the packaging bag in the vacuum cavity by the liquid adding pipe at the liquid adding exhaust station, the vacuum cavity is pumped with air from the outside.
According to the lithium battery packaging machine in the technical scheme, when a lithium battery is packaged, the design of multiple vacuum cavities and the design of continuous pumping action of the multiple vacuum cavities are carried out, namely after the vacuum cavities are placed into a packaging bag for containing the lithium battery in working, multiple times of vacuumizing and liquid adding actions of electrolyte solution are carried out, the vacuumizing and the liquid adding actions are carried out alternately, and meanwhile, during the liquid adding work, the electrolyte solution can enter the packaging bag of the lithium battery at the first time and is quickly absorbed by the lithium battery in a high-vacuum atmosphere environment, then, external air enters the vacuum cavity later, and the vacuum in the vacuum cavity is broken; therefore, in the process of one working cycle, the action similar to breathing is realized in the vacuum cavity, so that the electrolyte solution can be quickly absorbed by the lithium battery, and the production speed of the lithium battery is greatly improved; in addition, due to the design of the multiple vacuum cavities, the amount of liquid added into the lithium battery packaging bag can be small each time, the liquid can be absorbed quickly after each liquid adding, and the electrolyte solution cannot overflow, so that the addition amount of the electrolyte solution is accurately controlled to better ensure the quality of the lithium battery; in addition, because the addition amount of the electrolyte solution is less each time, more allowance does not need to be reserved in the packaging bag, the packaging material is saved, and the production cost is effectively reduced; in addition, above-mentioned technical scheme's lithium cell packagine machine, the quick-witted subassembly of pressing from both sides in the vacuum chamber can adapt to cliping, straining and loosening to different specification lithium cell packagine fast, does not need the mould to change, improves work efficiency.
Preferably, the closed-loop conveying track is a circular track formed by a turntable which performs indexing rotation.
Preferably, the upper port of the liquid feeding pipe is provided with an upper open type liquid storage pipe, a cut-off rod is inserted into the liquid storage pipe to block the bottom of the liquid storage pipe from being communicated with the liquid feeding pipe, and the cut-off rod is movably arranged and pushed by a cut-off rod pushing control element. Through the design, the vacuum cavity is when evacuation station evacuation, add electrolyte solution in the stock solution pipe, cut the bottom that the pole blocked the stock solution pipe, and when reaching the liquid feeding exhaust station, cut the pole lifting, then under the vacuum suction effect in the vacuum cavity, electrolyte solution in the stock solution pipe can get into the lithium cell packing bag in the vacuum cavity through the liquid feeding pipe very first time, electrolyte solution is absorbed fast by the lithium cell, outside air also gets into the vacuum cavity through the liquid feeding pipe afterwards, vacuum in the vacuum cavity is destroyed, at next evacuation station, the vacuum cavity continues the evacuation, then add electrolyte solution once more in the stock solution pipe.
Preferably, the liquid feeding pipe can be movably inserted into the vacuum cavity up and down and is pushed by the liquid feeding pipe pushing control element. The purpose of the above design is to make the liquid feeding pipe extend into the bag mouth of the packaging bag when feeding liquid, so that the electrolyte solution entering the vacuum cavity contacts the lithium battery at the highest speed, and the electrolyte solution is prevented from overflowing, and is lifted upwards when the packaging bag is sealed, thereby avoiding interference to the hot head assembly.
Preferably, the machine presss from both sides the subassembly including controlling the machine and pressing from both sides, and left machine clamp can swing to locate in the vacuum cavity and fixed link to each other with left pinion rack, and right machine clamp can swing to locate in the vacuum cavity and fixed link to each other with right pinion rack, controls pinion rack transmission meshing, and left pinion rack or right pinion rack are connected with the pinion rack push rod, and the pinion rack push rod passes through pinion rack push rod linkage structure and connects first gyro wheel, and first gyro wheel rolls and locates on the first cam disc, and the upper and lower position of first cam disc is adjustable. Through the design, when the cam curve of the first cam disc at the position of the first roller in the rolling process changes, the toothed plate push rod can push the toothed plate to act, and the left and right machine clamps are controlled to tighten and loosen the bag opening of the packaging bag; in addition, when the up-and-down position of the first cam plate is adjusted, the distance between the left machine clamp and the right machine clamp can be changed, so that the tightening and loosening of packaging bags with different specifications and sizes can be quickly adapted.
Preferably, the left machine clamp and the right machine clamp are connected with the clamp opening roller, and a movable clamp opening control rod is arranged at the bag loading station and the bag unloading station to push the clamp opening roller so as to open the left machine clamp and the right machine clamp.
Preferably, the vacuum cavity cover can be arranged in a turnover mode, the vacuum cavity cover is connected with the turnover arm, the turnover arm is connected with the second roller through the turnover arm linkage structure, the second roller is arranged on the second cam disc in a rolling mode, and the second cam disc is fixedly installed. Through the design, when the cam curve of the second cam disc at the position of the second roller in the rolling process changes, the turnover arm pushes the vacuum cavity cover to act, and the vacuum cavity is controlled to be opened or closed.
Preferably, the ironing head assembly comprises a front ironing head and a rear ironing head, the rear ironing head can be movably arranged in the vacuum cavity in the front-back direction and is pushed by an ironing head cylinder, the front ironing head can be movably arranged in the vacuum cavity cover in the front-back direction and is connected with the ironing pressing roller, and an ironing head pushing piece is arranged at the sealing station and is abutted to push the ironing pressing roller. Through the design, when the vacuum cavity that the wrapping bag sealed need be carried out and the station is sealed is reachd, scald and press the gyro wheel and can be promoted by scalding first impeller, preceding scald head is to the first direction action of scalding backward, simultaneously, the head is scalded forward to the back and is scalded first direction action under the promotion of scalding the first cylinder, then scalds the head around and compresses tightly the contact, accomplishes the action of sealing to the wrapping bag, simple structure.
Drawings
The invention has the following drawings:
figure 1 is a perspective view of the present invention,
figure 2 is a top directional view of figure 1,
figure 3 is a view showing the construction of the connection between the turntable and the vacuum chamber assembly,
figure 4 is another directional view of figure 3,
figure 5 is a side plan view of figure 3,
figure 6 is a side plan view of figure 4,
figure 7 is a schematic view of the construction of a vacuum chamber assembly,
figure 8 is a rear view in elevation of figure 7,
figure 9 is a schematic view of the structure of the clip assembly,
figure 10 is a side view of the vacuum chamber assembly in a closed state,
figure 11 is a longitudinal cross-sectional view of the vacuum chamber of figure 10,
fig. 12 is a longitudinal sectional view of the vacuum chamber cover of fig. 10.
Detailed Description
As shown in the figure, the lithium battery packaging machine comprises a closed-loop conveying track, the closed-loop conveying track is a circular track, the circular track is formed by a rotary table 1 which rotates in an indexing manner, sixteen stations including an upper bag station A, a bag opening station B, five vacuumizing stations C, four liquid adding and exhausting stations D, a sealing station E and a lower bag station F are arranged on the outer circumference of the rotary table 1, the vacuumizing stations C and the liquid adding and exhausting stations D are arranged in an inserting manner, each station is correspondingly provided with a vacuum cavity assembly, each vacuum cavity assembly is defined by a vacuum cavity 5 and a vacuum cavity cover 6 together, the vacuum cavity 5 is fixedly connected with the rotary table 1, the vacuum cavity cover 6 is arranged on the vacuum cavity 5 in a turnover manner, the vacuum cavity cover 6 is connected with a turnover arm 21, the turnover arm 21 is connected with a second roller 12 through a turnover arm linkage structure 15, the second roller 12 is arranged on a second cam disc 11 in a rolling manner, the second cam plate 11 is fixedly mounted. The vacuum cavity is internally provided with an organic clamp assembly 16 and an ironing head assembly, the vacuum cavity is connected and communicated with a vacuum air distribution disc 7 of a packaging machine through a vacuum tube 18, a liquid adding tube 20 is inserted into the vacuum cavity, the liquid adding tube 20 can be movably inserted into the vacuum cavity up and down and pushed by a liquid adding tube pushing control element (an air cylinder can be selected for use), an upper opening type liquid storage tube 26 is arranged at the upper end opening of the liquid adding tube 20, a cut-off rod 27 is inserted into the liquid storage tube 26 to block the bottom of the liquid storage tube 26 from being communicated with the liquid adding tube 20, the cut-off rod 27 is movably arranged up and down and pushed by the cut-off rod pushing control element (an electromagnetic switch can be adopted), and therefore when the liquid adding tube adds electrolyte solution into a lithium battery packaging bag in the vacuum cavity at a liquid adding exhaust station, the vacuum cavity can suck air from the outside.
The clamp assembly 16 comprises a left clamp and a right clamp, the left clamp 161 can be swung and arranged in a vacuum cavity and fixedly connected with a left toothed plate 30, the right clamp 162 can be swung and arranged in the vacuum cavity and fixedly connected with a right toothed plate 31, the left toothed plate and the right toothed plate are in transmission engagement, the left toothed plate 30 is connected with a toothed plate push rod 17, the toothed plate push rod 17 is connected with a first roller 9 through a toothed plate push rod linkage structure 10, the first roller 9 is arranged on a first cam disc 8 in a rolling manner, the upper position and the lower position of the first cam disc 8 can be adjusted, the left clamp 161 is connected with a clamp opening roller 29, the right clamp 162 is connected with a clamp opening roller 33, clamp opening control rods 13 and 14 which can move up and down are arranged at an upper bag feeding station and a lower bag feeding station to push the clamp opening roller, so that the left clamp and the right clamp are opened, the up and down movement of the clamp opening control rods 13 and 14 is controlled by a clamp opening cam to push, when the clamp opening control rods 13 and 14 move up, the clamp opening roller 28 can push the seven-shaped plates 28 to swing, and a cross rod 32 connected with the seven-shaped plates 28 can push the clamp opening roller 29 forward, 33.
The ironing head assembly comprises a front ironing head 19 and a rear ironing head 22, the rear ironing head 22 can be movably arranged in the vacuum cavity 5 from front to back and is pushed by an ironing head cylinder 23, the ironing head cylinder 23 is installed on the back surface of the vacuum cavity 5, the front ironing head 19 can be movably arranged in the vacuum cavity cover 6 from front to back, the front ironing head 19 is connected with an ironing roller 25 through a circular rod shaft 24, and an ironing head pushing piece pushes the ironing roller 25 to push the ironing roller 25 to enable the front ironing head 19 to act at a sealing station.
The lithium battery packaging machine works as follows: at the bag feeding station A, the vacuum chamber cover 6 is in an open state, the bag feeding mechanism 4 clamps the packaging bag filled with the lithium battery from the movable bag bin 2 and then conveys the packaging bag into the vacuum chamber, the machine clamp assembly 16 clamps the packaging bag, then the turntable 1 rotates, at the bag opening station B, the left machine clamp and the right machine clamp are close to each other, the bag opening of the packaging bag is opened, then the vacuum cavity cover 6 is closed, at the first vacuum-pumping station, vacuum-pumping is performed in the vacuum chamber (the vacuum degree is generally controlled at 0.02-0.1 Mpa), electrolyte solution required by one fourth of each lithium battery is injected into the liquid storage tube 26, at the first liquid adding and exhausting station, the cutoff rod 27 is lifted, the electrolyte solution in the liquid storage pipe 26 enters a lithium battery packaging bag through the liquid adding pipe 20 at the first time, is quickly absorbed by a lithium battery in a high vacuum atmosphere environment, and then outside air enters the vacuum cavity to destroy the vacuum in the vacuum cavity; and then, at a second vacuumizing station, continuously vacuumizing the vacuum cavity, continuously adding one fourth of required electrolyte solution into the liquid storage pipe, then, at a second liquid adding and exhausting station, carrying out a second liquid adding and exhausting action on the vacuum cavity until the vacuum cavity reaches a heat sealing station E, carrying out heat sealing on the bag opening of the packaging bag by the head ironing assembly, finally, at a bag discharging station F, opening the vacuum cavity cover 6, loosening the clamping on the packaging bag by the machine clamp assembly 16, clamping the lithium battery packaging with liquid adding by the bag discharging assembly, conveying the lithium battery packaging with liquid adding to the output platform 3, and carrying out the process in a circulating manner.
Claims (8)
1. Lithium cell packagine machine, including closed loop delivery track, its characterized in that: the closed-loop conveying track is provided with a bag feeding station, a sealing station, a bag discharging station, a plurality of vacuumizing stations and a plurality of liquid feeding and exhausting stations, the vacuumizing stations and the liquid feeding and exhausting stations are arranged in an alternating mode, each station is correspondingly provided with a vacuum cavity assembly, each vacuum cavity assembly is defined by a vacuum cavity and a vacuum cavity cover together to form a vacuum cavity, an organic clamp assembly and an ironing head assembly are arranged in the vacuum cavity, the vacuum cavity is connected and communicated with a vacuum gas distribution device of the packaging machine through a vacuum tube, and a liquid feeding tube is inserted into the vacuum cavity; when the electrolyte solution is added into the packaging bag in the vacuum cavity by the liquid adding pipe at the liquid adding exhaust station, the vacuum cavity is pumped with air from the outside.
2. The lithium battery pack machine as claimed in claim 1, wherein: the closed-loop conveying track is a circular track formed by a turntable which rotates in an indexing manner.
3. The lithium battery pack machine as claimed in claim 1, wherein: the upper port of the liquid feeding pipe is provided with an upper open type liquid storage pipe, a cut-off rod is inserted into the liquid storage pipe to plug the bottom of the liquid storage pipe to be communicated with the liquid feeding pipe, and the cut-off rod is movably arranged and pushed by a cut-off rod pushing control element.
4. The lithium battery pack machine as claimed in claim 1, wherein: the liquid feeding pipe can be movably inserted in the vacuum cavity up and down and is pushed by the liquid feeding pipe pushing control element.
5. The lithium battery pack machine as claimed in claim 1, wherein: the machine presss from both sides the subassembly including controlling the machine and presss from both sides, and left side machine presss from both sides can be swung and locates in the vacuum chamber and fixed continuous with left pinion rack, and right side machine presss from both sides can be swung and locates in the vacuum chamber and fixed continuous with right pinion rack, controls pinion rack transmission meshing, and left pinion rack or right pinion rack are connected with the pinion rack push rod, and the pinion rack push rod passes through pinion rack push rod linkage structure and connects first gyro wheel, and first gyro wheel rolls and locates on the first cam disc, and the upper and lower position of first cam disc is adjustable.
6. The lithium battery pack machine as claimed in claim 5, wherein: the left machine clamp and the right machine clamp are connected with the opening clamp roller, and a movable opening clamp control rod is arranged at the bag loading station and the bag unloading station to push the opening clamp roller so as to open the left machine clamp and the right machine clamp.
7. The lithium battery pack machine as claimed in claim 1, wherein: the vacuum cavity cover can be arranged in a turnover mode, the vacuum cavity cover is connected with the turnover arm, the turnover arm is connected with a second roller through a turnover arm linkage structure, the second roller is arranged on a second cam disc in a rolling mode, and the second cam disc is fixedly installed.
8. The lithium battery pack machine as claimed in claim 1, wherein: the ironing head assembly comprises a front ironing head and a rear ironing head, the rear ironing head can be movably arranged in the vacuum cavity in the front-back direction and is pushed by an ironing head cylinder, the front ironing head can be movably arranged in the vacuum cavity cover in the front-back direction, the front ironing head is connected with an ironing roller, and an ironing head pushing piece is arranged at a sealing station and is abutted to push the ironing roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611350.1A CN113173304A (en) | 2021-06-02 | 2021-06-02 | Lithium battery packaging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611350.1A CN113173304A (en) | 2021-06-02 | 2021-06-02 | Lithium battery packaging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113173304A true CN113173304A (en) | 2021-07-27 |
Family
ID=76927337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110611350.1A Pending CN113173304A (en) | 2021-06-02 | 2021-06-02 | Lithium battery packaging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113173304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113859626A (en) * | 2021-10-19 | 2021-12-31 | 江苏腾通包装机械有限公司 | Contactless multi-station vacuum packaging structure |
| CN114426123A (en) * | 2022-02-18 | 2022-05-03 | 湖南晨光新材料科技有限公司 | Full-automatic bag feeding and packaging machine |
-
2021
- 2021-06-02 CN CN202110611350.1A patent/CN113173304A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113859626A (en) * | 2021-10-19 | 2021-12-31 | 江苏腾通包装机械有限公司 | Contactless multi-station vacuum packaging structure |
| CN113859626B (en) * | 2021-10-19 | 2022-06-14 | 江苏腾通包装机械有限公司 | Contactless multi-station vacuum packaging structure |
| CN114426123A (en) * | 2022-02-18 | 2022-05-03 | 湖南晨光新材料科技有限公司 | Full-automatic bag feeding and packaging machine |
| CN114426123B (en) * | 2022-02-18 | 2023-12-29 | 湖南晨光新材料科技有限公司 | Full-automatic bag feeding and packaging machine |
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