CN115871988A - Vacuum packaging machine and vacuum packaging method - Google Patents

Abstract

The invention discloses a vacuum packaging machine and a vacuum packaging method implemented by matching the vacuum packaging machine. The vacuum packaging machine comprises a bag supply device, a bag filling device and a bag sealing device. The bag supply equipment comprises a first bearing platform and a bag supply arm, and the bag supply arm can be used for moving a packaging bag to the first bearing platform. The bagging device comprises a second bearing platform, a bag opening arm and a pushing arm, wherein the second bearing platform can be used for arranging a circuit board group, the bag opening arm can be used for sucking one side of a packaging bag and enabling the packaging bag to be far away from the first bearing platform along a vertical direction, so that a packaging bag opening is formed in the packaging bag, and the pushing arm can be used for pushing the circuit board group into the packaging bag from the second bearing platform through the packaging bag opening. The bag sealing equipment can be used for vacuumizing the packaging bag and sealing the opening of the packaging bag.

Description

Vacuum packaging machine and vacuum packaging method

Technical Field

The present invention relates to a packaging machine and a packaging method, and more particularly, to a vacuum packaging machine and a vacuum packaging method for a circuit board.

Background

The prior circuit board is usually packed by people, however, the method for packing by people is time-consuming, labor-consuming and easy to cause packing errors. In addition, the circuit board is more easily damaged or destroyed due to misoperation in the manual packaging process, and the risk of secondary defects of the circuit board is increased.

Therefore, how to improve the packaging efficiency of the circuit board and reduce the risk of generating secondary defects of the circuit board by replacing manpower with machines and improving the packaging method has become one of the important issues to be solved by the industry.

Disclosure of Invention

The embodiment of the invention provides a vacuum packaging machine and a vacuum packaging method aiming at the defects of the prior art, which can effectively overcome the defects possibly generated by the conventional manual circuit board packaging method.

The embodiment of the invention discloses a vacuum packaging machine, which comprises: the bag supply equipment comprises a first bearing platform and a bag supply arm arranged on the first bearing platform at intervals, and the bag supply arm can be used for moving a packaging bag onto the first bearing platform; a bagging apparatus, comprising: a second bearing platform, the position of which corresponds to the first bearing platform, and the second bearing platform can be used for arranging a circuit board group; wherein the circuit board group comprises a plurality of circuit boards; the bag opening arm is arranged on the second bearing platform at intervals and can be used for sucking one side of the packaging bag and enabling the packaging bag to be far away from the first bearing platform along a vertical direction, so that a bag opening is formed in the packaging bag; the pushing arm is arranged at intervals on the bag opening arm and can be used for pushing the circuit board group from the second bearing platform into the packaging bag through the bag opening; and the bag sealing equipment is arranged at intervals on the bagging equipment, and can be used for vacuumizing the packaging bags and sealing the bag openings.

The embodiment of the invention discloses a vacuum packaging method, which comprises the following steps: a bag supply step: moving a packaging bag to a first bearing platform by a bag supply arm; opening the bag: sucking one side of the packaging bag by a bag opening arm and enabling the packaging bag to be far away from the first bearing platform along a vertical direction so as to enable the packaging bag to form a bag opening; a pushing step: pushing a circuit board group arranged on a second bearing platform into the packaging bag through the packaging bag opening by using a pushing arm; wherein the second load-bearing platform position corresponds to the first load-bearing platform and the set of circuit boards comprises a plurality of circuit boards; and a bag sealing step: and vacuumizing the packaging bag by using a bag sealing device and sealing the opening of the packaging bag.

One of the advantages of the present invention is that the vacuum packaging machine and the vacuum packaging method provided by the present invention can improve the packaging efficiency of a plurality of circuit boards and reduce the risk of the plurality of circuit boards causing secondary defects through the technical solutions that the bag opening arm can be used to suck one side of the packaging bag and make the side away from the first carrying platform along the vertical direction, so that the packaging bag is formed with the bag opening, the pushing arm can be used to push the circuit board group from the second carrying platform into the packaging bag through the bag opening, and the bag sealing device can be used to vacuumize the packaging bag and seal the bag opening.

For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the invention and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.

Drawings

Fig. 1 is a schematic top view of a vacuum packing machine according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram (I) of the operation of the bag supply apparatus according to the first embodiment of the present invention;

FIG. 3 is a schematic operation diagram (II) of the bag supplying apparatus according to the first embodiment of the present invention;

FIG. 4 is a schematic diagram (one) of the operation of the bagging apparatus of the first embodiment of the invention;

FIG. 5 is a schematic diagram (two) showing the operation of the bagging apparatus according to the first embodiment of the invention;

FIG. 6 is a schematic diagram (III) showing the operation of the bagging apparatus in the first embodiment of the invention;

FIG. 7 is a schematic diagram (IV) of the operation of the bagging apparatus of the first embodiment of the invention;

FIG. 8 is a schematic view (one) of the operation of the bag sealing apparatus according to the first embodiment of the present invention;

FIG. 9 is a schematic diagram (two) illustrating the operation of the bag sealing apparatus according to the first embodiment of the present invention;

FIG. 10 is a schematic diagram (III) illustrating the operation of the bag sealing apparatus according to the first embodiment of the present invention;

FIG. 11 is a schematic diagram (IV) illustrating the operation of the bag sealing apparatus according to the first embodiment of the present invention;

FIG. 12 is a schematic diagram (V) showing the operation of the bag sealing apparatus according to the first embodiment of the present invention;

FIG. 13 is a perspective view of a support fork of the first load-bearing platform according to the first embodiment of the present invention;

fig. 14 is a flow chart illustrating a vacuum packing method according to a second embodiment of the present invention.

Description of the symbols

100 vacuum packaging machine

1 bag supply equipment

11 first bearing platform

111 supporting fork

12: arm for bag supply

121: moving mechanism

122 lifting mechanism

123 suction mechanism

13 storage table

2: bagging equipment

21 second bearing platform

211 supporting fork

212 lifting mechanism

22 arm for opening bag

221 telescoping mechanism

222 opening mechanism

2221 suction nozzle

23 pushing arm

231 moving mechanism

232 lifting mechanism

233 pushing mechanism

24, bag opening device

241 bag opening mechanism

2411 expanding board

2412 moving the board

242 conveying mechanism

2421 supporting rack

2422A rolling wheel

3, bag sealing equipment

31, bag sealing device

311 vacuum packing device

312 placing table

3121 supporting fork

32 moving device

321 moving platform

3211 supporting fork

4: labeling apparatus

Label supply device

42 pasting arm

5 storage facility

51 storage device

52 dispensing arm

200 packaging bag

201 packaging bag mouth

300 circuit board group

P is the vertical direction

S100 vacuum packaging method

S101, bag supply step

S103, opening the bag

S105, a pushing step

S107, a bag sealing step

Detailed Description

The following is a description of the embodiments of the vacuum packaging machine and the vacuum packaging method disclosed in the present invention with reference to specific embodiments, and those skilled in the art will understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modifications and various changes in detail without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. Furthermore, as will be appreciated by reference to and as illustrated in the accompanying drawings, the description is intended to highlight only those specific figures that are referenced in the description. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. Additionally, the term "or" as used herein is intended to include any one or combination of the associated listed items, as the case may be.

[ first embodiment ]

Fig. 1 to 13 are schematic views of a first embodiment of the present invention, and it should be noted that the corresponding figures and related numbers and shapes mentioned in the present embodiment are only used for describing the embodiments of the present invention in detail, so as to facilitate the understanding of the contents of the present invention, and not to limit the scope of the present invention.

As shown in fig. 1 and 2, a first embodiment of the present invention discloses a vacuum packaging machine 100, which can be used for packaging a plurality of circuit board sets 300, and each of the circuit board sets 300 includes a plurality of circuit boards (not shown) stacked on top of each other, and in this embodiment, each of the circuit boards is preferably a Multi-Layer circuit board (Multi-Layer PCB), but the present invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, each of the circuit boards may also be a Single-sided circuit board (Single-Layer PCB) or a Double-sided circuit board (Double-Layer PCB).

As shown in fig. 1, the vacuum packing machine 100 includes a bag supplying apparatus 1, a bag filling apparatus 2, a bag sealing apparatus 3, a labeling apparatus 4, and a storing apparatus 5, but the present invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, the vacuum packaging machine 100 may not include the labeling device 4 and the storage device 5.

Specifically, the bag supply apparatus 1 and the bag sealing apparatus 3 are respectively provided at intervals to the bagging apparatus 2, and the labeling apparatus 4 and the storage apparatus 5 are respectively located adjacent to the bag sealing apparatus 3. Wherein the bagging apparatus 3 is located between the bagging apparatus 2 and the labeling apparatus 4.

It should be noted that, for convenience of description and understanding, the bag supplying device 1, the bag filling device 2, the bag sealing device 3, the labeling device 4, and the storage device 5 will be described in sequence, and the relative position relationship and the actuation relationship among the above devices will be described in due course.

As shown in fig. 1 to 3, the bag supplying apparatus 1 includes a first carrying platform 11, a bag supplying arm 12 and a storage platform 13, wherein the bag supplying arm 12 is disposed above the first carrying platform 11 at an interval, and the storage platform 13 is disposed beside the first carrying platform 11 at an interval. Wherein the storage platform 13 can be used for storing a plurality of packages 200, and the bag supply arm 12 can be used for moving one package 200 to the first loading platform 11.

Further, as shown in fig. 1 and 13, the first loading platform 11 includes a plurality of supporting forks 111, and each of the supporting forks 111 has the same length, and the distance between any two supporting forks 111 is the same. Wherein the length of any one of the supporting forks 111 is greater than that of any one side of the packing bag 200, and a plurality of supporting forks 111 can be used to carry the packing bag 200, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the length, shape, number, etc. of the plurality of supporting forks 111 can be adjusted according to actual requirements.

Further, the bag supplying arm 12 includes a moving mechanism 121, a lifting mechanism 122 and a sucking mechanism 123, wherein the moving mechanism 121 is connected to the lifting mechanism 122, and the sucking mechanism 123 is connected to an end of the lifting mechanism 122 relatively far away from the moving mechanism 121. The moving mechanism 121 can be used to move the lifting mechanism 122 to above the first supporting platform 11 or the storage platform 13, the lifting mechanism 122 can be used to move the suction mechanism 123 relative to the first supporting platform 11 and the storage platform 13, and the suction mechanism 123 can be used to suck a plurality of packages 200 on the storage platform 13 and place them on the first supporting platform 11.

It should be noted that, in the present embodiment, each of the packaging bags 200 is preferably an aluminum foil antistatic bag, but the present invention is not limited thereto. For example, in other embodiments of the present invention, each of the packaging bags 200 can also be an aluminum foil plated antistatic bag or an electronic transparent vacuum bag.

The bag supply apparatus 1 is so far described, and the description of the bagging apparatus 2 will be started below. As shown in fig. 1 and fig. 4 to 7, the bagging apparatus 2 includes a second carrying platform 21, a bag opening arm 22, a pushing arm 23 and a bag supporting device 24, but the invention is not limited thereto. For example, in other embodiments not shown in the present invention, the bagging apparatus 2 may not include the bag supporting device 24.

Specifically, as shown in fig. 1 and fig. 4, the second carrying platform 21 is located corresponding to the first carrying platform 11, the first carrying platform 11 is located between the second carrying platform 21 and the storage platform 13, the bag opening arms 22 are disposed on the second carrying platform 21 at intervals, the pushing arms 23 are disposed at intervals on one side of the bag opening arms 22, and the bag opening device 24 is located between the first carrying platform 11 and the second carrying platform 21.

Further, the bag opening arm 22 can be used to suck one side of the packaging bag 200 and make the side far away from the first carrying platform 11 along a vertical direction P, so that the packaging bag 200 is formed with a bag opening 201, and the pushing arm 23 can be used to push the circuit board assembly 300 from the second carrying platform 21 into the packaging bag 200 through the bag opening 201.

It should be noted that, for convenience of illustration and understanding, the respective structures of the second carrying platform 21, the bag opening arm 22, the pushing arm 23 and the bag opening device 24 will be described in sequence.

As shown in fig. 1 and fig. 4 to 7, the second supporting platform 21 includes a plurality of supporting forks 211 and a lifting mechanism 212 mounted on the supporting forks 211, and the supporting forks 211 can be used for supporting (providing) one circuit board assembly 300, and the lifting mechanism 212 can be used for moving the supporting forks 211 up and down relative to the first supporting platform 11. The supporting forks 211 of the second carrying platform 21 and the supporting forks 111 of the first carrying platform 11 have similar structures and functions, and are not repeated herein.

Further, as shown in fig. 4 to fig. 7, the bag opening arm 22 includes a telescopic mechanism 221 and an opening mechanism 222, wherein the telescopic mechanism 221 is located above the second carrying platform 21, and the opening mechanism 222 is connected to an end of the telescopic mechanism 221 relatively adjacent to the second carrying platform 21. In the present embodiment, the opening mechanism 222 preferably includes a plurality of nozzles 2221 arranged in a row, and the arrangement direction of the nozzles 2221 is parallel to the arrangement direction of the support forks 211.

Accordingly, the vacuum packing machine 100 can open the packing bag 200 by the opening mechanism 222 using a small number of the suction nozzles 2221 by means of a technical means that the opening mechanism 222 preferably includes a plurality of the suction nozzles 2221 arranged in a row, and the arrangement direction of the plurality of the suction nozzles 2221 is parallel to the arrangement direction of the plurality of the support forks 211.

It should be noted that, since fig. 2 to 7 are side views, only one of the plurality of nozzles 2221 is shown, but the number of the nozzles 2221 is still a plurality.

As shown in fig. 1 and fig. 4 to fig. 7, the pushing arm 23 includes a moving mechanism 231, an elevating mechanism 232 and a pushing mechanism 233, wherein the moving mechanism 231 is connected to the elevating mechanism 232, and the pushing mechanism 233 is connected to the elevating mechanism 232. The pushing mechanism 233 is preferably L-shaped in the embodiment, but the invention is not limited thereto.

Further, the moving mechanism 231 can be used to move the lifting mechanism 232 to above the second loading platform 21, the lifting mechanism 232 can be used to make the pushing mechanism 233 approach or separate from the second loading platform 21 along the vertical direction P, and the pushing mechanism 233 can be used to move toward the first loading platform 11 to push the circuit board assembly 300 into the package bag 200.

As shown in fig. 4 to 7, the bag opening device 24 includes two bag opening mechanisms 241 and a conveying mechanism 242, the two bag opening mechanisms 241 are disposed at a corresponding position and spaced apart from each other, and the conveying mechanism 242 is disposed between the two bag opening mechanisms 241. Wherein, the two bag opening mechanisms 241 of the bag opening device 24 can be used for placing and opening the bag opening 201, and the conveying mechanism 242 can be used for conveying the circuit board group 300.

Specifically, as shown in fig. 4 to fig. 7, each bag opening mechanism 241 includes an expansion board 2411 and a moving board 2412, and the moving board 2412 is disposed on a side of the expansion board 2411 opposite to the bag opening 201, and a length direction of the expansion board 2411 is perpendicular to the vertical direction P. Wherein two of the expansion panels 2411 can be used to place the packing mouth 201, and two of the moving panels 2412 can be used to move away from each other, so that the expansion panels 2411 can be used to expand the opening area of the packing mouth 201.

It should be noted that the length direction of the expansion board 2411 is perpendicular to the vertical direction P, and in this embodiment, when two expansion boards 2411 extend into the packaging opening 201, two expansion boards 2411 only occupy at most 0.05 times of the opening area of the packaging opening 201. Thereby, the expansion board 2411 can protrude into the package mouth 201 with a minimum volume and expand the opening area of the package mouth 201.

Specifically, as shown in fig. 4 to 7, the conveying mechanism 242 includes a support frame 2421 and a plurality of rollers 2422 mounted on the support frame 2421, and the conveying mechanism 242 can be used for conveying the circuit board assembly 300. It should be noted that the conveying mechanism 242 is actually a conventional small roller conveyor belt in this embodiment, and therefore, the description thereof is omitted.

The bagging apparatus 2 is described so far, and the description of the bagging apparatus 3 will begin below. As shown in fig. 1 and fig. 8 to fig. 12, the bag sealing apparatus 3 can be used for evacuating the package 200 and sealing the opening 201, and the bag sealing apparatus 3 includes a bag sealing device 31 and a moving device 32 disposed at intervals on the bag sealing device 31, and the moving device 32 can be used for moving the package 200 disposed on the first carrying platform 11 and the circuit board assembly 300 located therein to the bag sealing device 31, and the bag sealing device 31 can be used for evacuating the package 200 and sealing the opening 201.

As shown in fig. 8 to 12, the moving device 32 includes two moving platforms 321 arranged at intervals, and the two moving platforms 321 include a plurality of supporting forks 3211 respectively, and the bag sealing device 31 includes a vacuum packer 311 and a placing table 312 located inside the vacuum packer 311, and the placing table 312 includes a plurality of supporting forks 3121. One of the moving platforms 321 can be used to move the packaging bag 200 and the circuit board assembly 300 located therein to the placing table 312, and the vacuum packer 311 can be used to evacuate the packaging bag 200 and close the packaging opening 201.

It should be noted that the shapes of the plurality of supporting forks 111 of the first carrying platform 11, the plurality of supporting forks 3211 of the two moving platforms 321, and the plurality of supporting forks 3121 of the placing table 312 are similar, and the distance between any two adjacent supporting forks 111,3121,3211 is greater than the width of any one of the supporting forks 111,3121,3211. Wherein each of the supporting forks 111,3121,3211 can be used to carry the packaging bag 200 and the circuit board group 300, and the supporting forks 3211 of any one of the moving platforms 321 can pass through the supporting forks 111 of the first carrying platform 11 or pass through the gaps between the supporting forks 3121 of the placing platform 312.

The bag closing device 3 is introduced so far, and the label device 4 will be described below. As shown in fig. 1, the labeling apparatus 4 includes a label supplying device 41 and a pasting arm 42 disposed at intervals on the label supplying device 41, and the pasting arm 42 can suck a label (not shown) from the label supplying device 41 and paste it on the packaged circuit board assembly 300.

The label device 4 is introduced so far, and the storage device 5 will be described below. As shown in fig. 1, the storage apparatus 5 includes a plurality of storage units 51 and a distribution arm 52 disposed at intervals on the plurality of storage units 51, and the distribution arm 52 can be used to place the packaged circuit board assembly 300 on the plurality of storage units 51. In the present embodiment, each of the storage devices 51 may be a storage platform formed with a plurality of supporting forks (not shown), or may be a box-shaped storage platform, and the plurality of supporting forks are similar to the plurality of supporting forks 111 in structure, so that the description thereof is omitted.

It should be noted that a plurality of the supporting forks 3211 of one of the moving platforms 321 can be used to pass through the storage unit 51 formed with a plurality of the supporting forks. Thereby, the circuit board group 300 and the packing bag 200, which are packed and vacuumed, can be moved to the storage unit 51 in which the plurality of support forks are formed.

[ second embodiment ]

Referring to fig. 14, which is a second embodiment of the present invention, it should be noted that this embodiment is similar to the first embodiment, and therefore the same parts of the two embodiments are not described again (for example, the bag supply device 1); for convenience of description and understanding, the embodiments of the present invention will be described with reference to the drawings of the first embodiment, and the related numbers and shapes of the embodiments mentioned in the drawings are only used for describing the embodiments of the present invention in detail, so as to facilitate understanding of the contents of the present invention, and not for limiting the scope of the present invention.

As shown in fig. 14, a second embodiment of the present invention discloses a vacuum packing method S100, which includes: a bag supply step S101, a bag opening step S103, a push-in step S105, and a bag sealing step S107.

The bag supply step S101: moving one of the packing bags 200 to the first loading platform 11 by the bag supply arm 12; the bag opening step S103: the bag opening arm 22 sucks one side of the packaging bag 200 and makes the side far away from the first bearing platform 11 along the vertical direction P, so that the packaging bag 200 is formed with the bag opening 201.

The push-in step S105: the circuit board set 300 disposed on the second carrying platform 21 is pushed into the package bag 200 through the package opening 201 by the pushing arm 23. Wherein the second carrying platform 21 corresponds to the first carrying platform 11 in position, and the circuit board group 300 comprises a plurality of circuit boards; the bag sealing step S107: and vacuumizing the packaging bag 200 by the bag sealing equipment 3 and sealing the bag opening 201.

[ advantageous effects of the embodiments ]

One of the advantages of the present invention is that the vacuum packaging machine 100 and the vacuum packaging method S100 provided by the present invention can utilize the technical solutions that "the bag opening arm 22 can be used to suck one side of the packaging bag 200 and make it away from the first loading platform 11 along the vertical direction P, so that the packaging bag 200 is formed with the packaging opening 201", "the pushing arm 23 can be used to push the circuit board group 300 from the second loading platform 21 into the packaging bag 200 through the packaging opening 201", and "the bag sealing apparatus 3 can be used to vacuumize the packaging bag 200 and close the packaging opening 201", thereby improving the packaging efficiency of a plurality of circuit boards and reducing the risk of the plurality of circuit boards causing secondary defects.

More specifically, the vacuum packaging machine 100 can make the plurality of supporting forks 3211 of any one of the moving platforms 321 pass through the plurality of supporting forks 111 of the first loading platform 11 or the gap between the plurality of supporting forks 3121 of the placing platform 312 and make the movement of the circuit board group 300 more smooth by the technical means that "the plurality of supporting forks 111 of the first loading platform 11, the plurality of supporting forks 3211 of the two moving platforms 321 and the plurality of supporting forks 3121 of the placing platform 312 are similar in shape and the distance between any two adjacent supporting forks 111,3121,3211 is greater than the width of any one of the supporting forks 111,3121,3211".

More specifically, the vacuum packaging machine 100 can expand the opening area of the bag opening 201 by the technical means that the bagging device 2 comprises the bag supporting device 24 installed on one side of the second carrying platform 21, the bag supporting device 24 is located between the first carrying platform 11 and the second carrying platform 21, and the bag supporting device 24 can be used for placing and supporting the bag opening 201, so that the circuit board assembly 300 can be easily pushed into the packaging bag 200.

More specifically, the vacuum packaging machine 100 can extend the expansion board 2411 into the bag opening 201 with a minimum volume and expand the opening area of the bag opening 201 by means of "the bag supporting device 24 includes two bag supporting mechanisms 241 disposed at intervals and at positions corresponding to each other, and each of the two bag supporting mechanisms 241 includes the expansion board 2411 and the moving board 2412 disposed on one side of the expansion board 2411, and the longitudinal direction of the expansion board 2411 is perpendicular to the vertical direction P".

The disclosure above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the claims, therefore, all equivalent technical changes made by using the contents of the specification and drawings are included in the scope of the claims.

Claims (10)

1. A vacuum packaging machine, comprising:

the bag supply equipment comprises a first bearing platform and bag supply arms arranged on the first bearing platform at intervals, and the bag supply arms can be used for moving the packaging bags to the first bearing platform;

a bagging apparatus comprising:

a second load-bearing platform, which is positioned corresponding to the first load-bearing platform and can be used for arranging a circuit board group; wherein the circuit board group comprises a plurality of circuit boards;

the bag opening arms are arranged on the second bearing platform at intervals and can be used for sucking one side of the packaging bag and enabling the packaging bag to be far away from the first bearing platform along the vertical direction, so that a bag opening is formed in the packaging bag; and

the pushing arms are arranged at intervals on the bag opening arms and can be used for pushing the circuit board group into the packaging bag from the second bearing platform through the bag opening; and

and the bag sealing equipment is arranged at intervals in the bagging equipment, and can be used for vacuumizing the packaging bags and sealing the bag openings.

2. The vacuum packaging machine as claimed in claim 1, wherein said bagging apparatus further comprises a bag opening device mounted to one side of said second carrier platform and located between said first carrier platform and said second carrier platform, said bag opening device being operable to receive and open said bag opening.

3. The vacuum packing machine according to claim 2, wherein the bag supporting device comprises two bag supporting mechanisms disposed at positions corresponding to each other and spaced apart from each other, and the two bag supporting mechanisms respectively comprise an expansion plate and a moving plate disposed at one side of the expansion plate, and a length direction of the expansion plate is perpendicular to the vertical direction; wherein the two expansion plates can be used for placing the bag opening, and the two moving plates can be used for moving away from each other to enlarge the opening area of the bag opening.

4. The vacuum packaging machine according to claim 3, wherein the bag supporting device further comprises a conveying mechanism located between two bag supporting mechanisms, and the conveying mechanism comprises a supporting frame and a plurality of rollers mounted on the supporting frame, and the conveying mechanism can be used for conveying the circuit board group.

5. The vacuum packaging machine according to claim 1, wherein the bag sealing apparatus comprises a bag sealing device and a moving device disposed at intervals on the bag sealing device, and the moving device is capable of moving the package disposed on the first carrying platform and the circuit board group located therein to the bag sealing device, and the bag sealing device is capable of evacuating the package and sealing the opening of the package.

6. The vacuum packaging machine of claim 5, wherein the moving means comprises two moving platforms spaced apart and the bag sealing means comprises a vacuum packer and a placing table located inside the vacuum packer, wherein one of the moving platforms is operable to move the bag and the set of circuit boards located inside the bag to the placing table and the vacuum packer is operable to evacuate the bag and close the bag opening.

7. The vacuum packaging machine according to claim 6, wherein the first carrying platform, the two moving platforms and the placing table respectively comprise a plurality of supporting forks, and the distance between any two adjacent supporting forks is greater than the width of any one of the supporting forks; wherein each of the supporting forks is capable of carrying the package bag and the circuit board group, and the plurality of supporting forks of any one of the moving platforms are capable of passing through a gap between the plurality of supporting forks of the first carrying platform or the placing platform.

8. The vacuum packaging machine of claim 1, wherein the vacuum packaging machine further includes a labeling apparatus positioned adjacent to the envelope apparatus, and the labeling apparatus includes a label supply device and a posting arm spaced from the label supply device, the posting arm being operable to draw labels from the label supply device and post them onto the packaged set of circuit boards.

9. The vacuum packaging machine according to claim 1, wherein said vacuum packaging machine further comprises a storage apparatus positioned adjacent to said envelope apparatus, and said storage apparatus comprises a plurality of storage units and a dispensing arm spaced from said plurality of storage units, and said dispensing arm is operable to place said packaged circuit board assembly in said plurality of storage units.

10. A method of vacuum packaging, comprising:

a bag supply step: the bag arm moves the packaging bag to the first bearing platform;

opening the bag: sucking one side of the packaging bag by a bag opening arm and enabling the packaging bag to be far away from the first bearing platform along the vertical direction so as to enable the packaging bag to form a bag opening;

a pushing step: pushing the circuit board set arranged on the second bearing platform into the packaging bag through the packaging bag opening by using a pushing arm; wherein the second load-bearing platform position corresponds to the first load-bearing platform, and the circuit board group comprises a plurality of circuit boards; and

a bag sealing step: and vacuumizing the packaging bag by using bag sealing equipment and sealing the bag opening.

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