Fully automatic vacuum packaging equipment and packaging method

Abstract

The present invention discloses a fully automatic vacuum packaging equipment and packaging method, wherein the packaging equipment comprises a packaging bag feeding mechanism for transferring empty packaging bags one by one to a workbench, a bag opening mechanism for opening the bag opening of the packaging bag in the up-down direction, a bag filling mechanism for delivering the product to be packaged from the bag opening to the back of the packaging bag, and a bag sealing device, wherein the bag sealing device comprises a bag closing mechanism for closing the bag opening in the up-down direction, a vacuuming mechanism for vacuuming the inside of the packaging bag, and a sealing mechanism for fixing and heat-sealing the bag opening. The fully automatic vacuum packaging equipment of the present invention can realize full automation of the entire process of sealing the packaging bag, without manual auxiliary operation, thus improving work efficiency and reducing costs. At the same time, various functional modules are integrated into one, the entire equipment structure is compact, and the space utilization rate is high.

Description

[0001] This application is a divisional application based on the invention application with application number 2021112241051 filed on October 19, 2021 and named "Fully automatic vacuum packaging equipment". Technical Field

[0002] The invention relates to full-automatic vacuum packaging equipment and a packaging method. Background Art

[0003] Vacuum packaging is a commonly used packaging method, which is used in many industries. Vacuum packaging generally needs to be completed by vacuum packaging equipment, but in the existing technology, vacuum packaging equipment still has many problems. On the one hand, the automation level of vacuum packaging equipment is low, and manual assistance is often required, such as opening the packaging bag and filling the material; on the other hand, the entire vacuum packaging process involves multiple processes, and multiple different modules are required to complete different operations. The existing vacuum packaging equipment simply stacks the modules, resulting in a bloated structure of the entire equipment, occupying a large space, and low work efficiency. Summary of the invention

[0004] The object of the present invention is to provide a novel fully automatic vacuum packaging device to solve one or more problems in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A fully automatic vacuum packaging equipment, comprising:

[0007] A packaging bag loading mechanism is used to transfer empty packaging bags to a workbench one by one, wherein the length direction of the packaging bag is arranged along the front-to-back direction, the bag opening of the packaging bag faces forward, the packaging bag has an upper bag body located at the top and a lower bag body located at the bottom, the bag opening has an open state and a closed state, when the bag opening is in the open state, the front side edge portion of the upper bag body and the front side edge portion of the lower bag body are separated in the up-down direction; when the bag opening is in the closed state, the front side edge portion of the upper bag body and the front side edge portion of the lower bag body are close to each other in the up-down direction;

[0008] A bag opening mechanism, used for opening the bag opening of the packaging bag in the up-down direction;

[0009] A bag-opening mechanism, used for further opening the bag opening in the up-down direction;

[0010] A conveying mechanism, used for conveying the products to be packaged;

[0011] A bagging mechanism, used for delivering the product to be packaged from the bag opening to the rear of the packaging bag;

[0012] The bag sealing device comprises a bag closing mechanism for closing the bag opening in the up-down direction, a vacuuming mechanism for evacuating the inside of the packaging bag, and a sealing mechanism for fixing and heat-sealing the bag opening, wherein:

[0013] The bag closing mechanism includes two groups of bag closing components respectively arranged on the left and right sides, each group of the bag closing components includes a stand that can move in the left and right directions, and a sheet-shaped pressure rod that can move in the front and back directions and is arranged on the stand. In the process that the two groups of pressure rods extend into the bag opening and move away from each other, the bag opening is converted from the open state to the closed state. Each group of the bag closing components also includes a clamping claw for clamping the left / right side edge of the packaging bag, and the clamping claw is arranged on the stand and moves in the left and right directions synchronously with the pressure rod on the same side.

[0014] In some embodiments, the bag supporting mechanism includes an upper bag supporting assembly and a lower bag supporting assembly which can be lifted and lowered in the vertical direction respectively, the upper bag supporting assembly includes two groups of upper clamping members which are arranged at intervals along the left-right direction and can be clamped on the front edge of the upper bag body, and the two groups of upper clamping members can be arranged relatively far away or relatively close; the lower bag supporting assembly includes two groups of lower clamping members which are arranged at intervals along the left-right direction and can be clamped on the front edge of the lower bag body, and the two groups of lower clamping members can be arranged relatively far away or relatively close.

[0015] In some embodiments, the packaging bag loading mechanism includes a feeding table for supplying empty packaging bags, and a feeding rack capable of moving in the left and right directions and the up and down directions. The feeding table is arranged on one or both sides of the left and right directions of the workbench, and the feeding rack is provided with multiple upper adsorption parts with adsorption ports facing downwards.

[0016] In some embodiments, the bag opening mechanism includes a lower adsorption member arranged below the workbench with the adsorption port facing upward. The workbench has a packaging station for packaging operations. The lower adsorption member is located in front of the packaging station. When the packaging bag is located at the packaging station, the lower adsorption member is located below the front of the packaging bag, and part of the upper adsorption member is located above the front of the packaging bag.

[0017] In some embodiments, the packaging equipment also includes a limiting mechanism for limiting the backward transmission position of the product to be packaged, the transmission mechanism includes two groups of conveyor belts arranged at intervals along the left and right directions, and the bagging mechanism includes a material transfer seat, which can be translated along the front and rear directions and can be lifted and lowered along the vertical direction. The material transfer seat is located between the two groups of conveyor belts along the left and right directions, and the material transfer seat, the limiting mechanism and the transmission mechanism are all located in front of the workbench.

[0018] In some embodiments, the sealing mechanism includes an upper crossbeam and a lower crossbeam, and the upper crossbeam and the lower crossbeam can be respectively raised and lowered in the vertical direction. An upper pressing part and an upper hot pressing part are arranged at the bottom of the upper crossbeam, and a lower pressing part and a lower hot pressing part are arranged at the top of the lower crossbeam. The bottom surface of the upper pressing part is lower than the bottom surface of the upper hot pressing part, and the top surface of the lower pressing part is higher than the top surface of the lower hot pressing part. Both the upper pressing part and the lower pressing part can be elastically deformed in the up and down directions. The vacuum pumping mechanism is height-adjustable in the vertical direction. The vacuum pumping mechanism has at least a hollow vacuum pumping tube, which extends in the front-to-back direction and can be relatively moved in the front-to-back direction. The upper pressing part is located behind the upper hot pressing part, and the lower pressing part is located behind the lower hot pressing part.

[0019] In some embodiments, the vacuum tube has a vacuum action rod located at the rear and capable of extending backward into the packaging bag, and the vacuum action rod is provided with a negative pressure adsorption port. The vacuum action rod is flat, and when the vacuum action rod is extended into the packaging bag, the negative pressure adsorption port is located behind the upper pressing piece and the lower pressing piece.

[0020] Another object of the present invention is to provide a novel fully automatic vacuum packaging method.

[0021] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a fully automatic vacuum packaging method, which is implemented based on the above-mentioned fully automatic vacuum packaging equipment, wherein, after the packaging bag feeding mechanism transfers the empty packaging bags to the workbench one by one, the bag opening mechanism opens the bag opening of the packaging bag, and after the bag supporting mechanism further opens the bag opening in the up and down directions, the bag filling mechanism delivers the product to be packaged into the packaging bag, and the bag closing mechanism closes the bag opening in the up and down directions, and then the vacuuming mechanism vacuumizes the inside of the packaging bag, and the sealing mechanism fixes and heat-seals the bag opening.

[0022] In some embodiments, the vacuum pumping mechanism at least has a hollow vacuum pumping tube, which extends in the front-to-back direction and can be arranged to move relative to each other in the front-to-back direction. The vacuum pumping tube has a vacuum action rod located at the rear and can extend backward into the packaging bag. The vacuum action rod is provided with a negative pressure adsorption port. After the vacuum action rod is inserted into the packaging bag, the bag closing mechanism closes the bag opening in the up and down direction, and then the vacuum pumping mechanism vacuums the packaging bag again; after the vacuum action rod is pulled out of the packaging bag, the heat sealing mechanism fixes and heat-seals the bag opening.

[0023] Due to the application of the above technical scheme, the present invention has the following advantages compared with the prior art: the fully automatic vacuum packaging equipment and packaging method of the present invention, its packaging bag feeding mechanism can transfer empty packaging bags to the workbench one by one, the bag opening mechanism can open the bag mouth of the packaging bag, the bag filling mechanism can put the product to be packaged into the packaging bag, and the bag sealing device can realize the extraction of air in the packaging bag and the fixed heat sealing of the bag mouth of the packaging bag. The whole process can be fully automated without the need for manual auxiliary operation, thereby improving work efficiency and reducing costs. At the same time, various functional modules are integrated into one, the whole equipment structure is compact, and the space utilization rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 It is a schematic diagram of the three-dimensional structure of the fully automatic vacuum packaging equipment of the present invention;

[0025] Attached Figure 2 For attachment Figure 1 Schematic diagram of the three-dimensional structure of the fully automatic vacuum packaging equipment from another perspective;

[0026] Attached Figure 3 It is a three-dimensional structural schematic diagram of a bag sealing device and a bag supporting mechanism in the fully automatic vacuum packaging equipment of the present invention;

[0027] Attached Figure 4 To Attachment Figure 6 For attachment Figure 3 Schematic diagram of the three-dimensional structure of the middle bag sealing device and the bag supporting mechanism at other viewing angles;

[0028] Attached Figure 7 It is a three-dimensional structural schematic diagram of the bag closing mechanism in the fully automatic vacuum packaging equipment of the present invention, wherein the clamping claws are in a closed state;

[0029] Attached Figure 8 It is a three-dimensional structural schematic diagram of the bag closing mechanism in the fully automatic vacuum packaging equipment of the present invention, wherein the clamping claws are in an open state;

[0030] Attached Fig. 9 It is a three-dimensional structural schematic diagram of the vacuum pumping mechanism in the fully automatic vacuum packaging equipment of the present invention;

[0031] Attached Fig.10 It is a three-dimensional structural schematic diagram of the sealing mechanism and the bag-supporting mechanism in the fully automatic vacuum packaging equipment of the present invention;

[0032] Attached Fig.11 For attachment Fig.10 A schematic diagram of the three-dimensional structure of the middle sealing mechanism and the bag-supporting mechanism from another viewing angle;

[0033] Attached Fig.12 For attachment Fig.11 A partial enlarged view of the middle A;

[0034] in:

[0035] 100. Packaging bag; 200. Products to be packaged;

[0036] 1. Packaging bag feeding mechanism; 11. Feeding table; 12. Feeding rack; 121. Upper adsorption member; 13. First guide rail rack; 14. Second guide rail rack; 15. Third guide rail rack;

[0037] 2. Workbench;

[0038] 3. Bag opening mechanism; 31. Lower adsorption member;

[0039] 4. Bagging mechanism; 41. Material transfer seat;

[0040] 5. Bag sealing device; 51. Bag closing mechanism; 511. Bag closing assembly; 5111. Stand; 5112. Press rod; 5113. Clamping claw; 52. Vacuuming mechanism; 521. Vacuuming tube; 5211. Vacuum action rod; 5212. Negative pressure adsorption port; 53. Sealing mechanism; 531. Upper crossbeam; 5311. Upper pressing part; 5312. Upper hot pressing part; 532. Lower crossbeam; 5321. Lower pressing part; 5322. Lower hot pressing part; 533. First driving part; 534. Second driving part;

[0041] 6. Bag support mechanism; 61. Upper bag support assembly; 611. Upper clamping member; 612. Upper mounting cross bar; 613. Third driving member; 62. Lower bag support assembly; 621. Lower clamping member; 622. Lower mounting cross bar; 623. Fourth driving member; 6a. First cylinder; 6b. Fixing member; 6c. Second cylinder; 6d. Clamping member;

[0042] 7. Transmission mechanism; 71. Conveyor belt. DETAILED DESCRIPTION

[0043] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0044] Referring to the drawings, a fully automatic vacuum packaging device is shown, comprising:

[0045] The packaging bag loading mechanism 1 is used to transfer the empty packaging bags 100 one by one to the workbench 2, wherein the length direction of the packaging bags 100 is arranged along the front-to-back direction, and the bag opening of the packaging bags 100 faces forward;

[0046] The bag opening mechanism 3 is used to open the bag mouth of the packaging bag 100 in the up-down direction;

[0047] The bagging mechanism 4 is used to deliver the product 200 to be packaged from the bag opening to the packaging bag 100;

[0048] The bag sealing device 5 comprises a bag closing mechanism 51 for closing the bag opening in the up-down direction, a vacuuming mechanism 52 for evacuating the inside of the packaging bag 100 , and a sealing mechanism 53 for fixing and heat-sealing the bag opening.

[0049] Specifically, see Appendix Figure 3 To Attachment Figure 6 As shown, the sealing mechanism 53 includes an upper crossbeam 531 and a lower crossbeam 532. The upper crossbeam 531 and the lower crossbeam 532 can be raised and lowered in the vertical direction respectively. An upper pressing piece 5311 and an upper hot pressing piece 5312 are arranged at the bottom of the upper crossbeam 531, and a lower pressing piece 5321 and a lower hot pressing piece 5322 are arranged at the top of the lower crossbeam 532. The bottom surface of the upper pressing piece 5311 is lower than the bottom surface of the upper hot pressing piece 5312, and the top surface of the lower pressing piece 5321 is higher than the top surface of the lower hot pressing piece 5322. Both the upper pressing piece 5311 and the lower pressing piece 5321 can be elastically deformed in the up and down directions. In this way, when the upper crossbeam 531 and the lower crossbeam 532 are close to each other, the upper pressing piece 5311 and the lower pressing piece 5321 are squeezed against each other and elastically deformed. At this time, the upper pressing piece 5311 and the lower pressing piece 5321 can seal the mouth of the packaging bag 100 to avoid air leakage during subsequent vacuuming; continue to make the upper crossbeam 531 and the lower crossbeam 532 close to each other, when the upper heat pressing piece 5312 and the lower heat pressing piece 5322 contact each other, at this time, the upper heat pressing piece 5312 and the lower heat pressing piece 5322 can fix the bag mouth of the packaging bag 100 with heat seal.

[0050] In this embodiment, the upper pressing member 5311 is located behind the upper heat pressing member 5312, and the lower pressing member 5321 is located behind the lower heat pressing member 5322. In this way, when the fully automatic vacuum packaging equipment of this embodiment performs a heat sealing operation, external air can be prevented from entering the packaging bag 100.

[0051] The sealing mechanism 53 also includes a first driving member 533 for driving the upper beam 531 to move in the vertical direction, and a second driving member 534 for driving the lower beam 532 to move in the vertical direction. In this embodiment, the first driving member 533 and the second driving member 534 are both cylinders, and the telescopic rod of the first driving member 533 and the telescopic rod of the second driving member 534 can both move telescopically in the vertical direction.

[0052] See attached Fig. 9As shown, the vacuum mechanism 52 is arranged to be adjustable in height along the vertical direction. The vacuum mechanism 52 has at least a hollow vacuum tube 521. The vacuum tube 521 extends along the front-to-back direction and can be arranged to move relatively along the front-to-back direction. The vacuum tube 521 has a vacuum action rod 5211 located at the rear and capable of extending backward into the packaging bag 100. The vacuum action rod 5211 is provided with a negative pressure adsorption port 5212. The vacuum action rod 5211 is flat. When the vacuum action rod 5211 is extended into the vacuum bag, the negative pressure adsorption port 5212 is located behind the upper pressing piece 5311 and the lower pressing piece 5321, and the vacuum action rod 5211 is located between the upper pressing piece 5311 and the lower pressing piece 5321. The vacuum action rod 5211 is flat. At the same time, the upper pressing piece 5311 and the lower pressing piece 5321 can undergo elastic deformation in the up and down directions. In this way, the vacuum tube 521 can prevent external air from entering the packaging bag 100 when vacuuming the packaging bag 100.

[0053] In this embodiment, the packaging bag 100 has an upper bag body (not shown in the figure) located at the top and a lower bag body (not shown in the figure) located at the bottom, and the bag opening has an open state and a closed state. When the bag opening is in the open state, the front side edge of the upper bag body and the front side edge of the lower bag body are separated from each other in the up and down direction; when the bag opening is in the closed state, the front side edge of the upper bag body and the front side edge of the lower bag body are brought together in the up and down direction.

[0054] See attached Figure 7 and attached Figure 8 As shown, the bag closing mechanism 51 includes two groups of bag closing components 511 disposed on the left and right sides, each group of bag closing components 511 includes a stand 5111 that can move in the left-right direction, and a sheet-shaped pressure rod 5112 that can move in the front-back direction and is disposed on the stand 5111. During the process of the two groups of pressure rods 5112 extending into the bag opening and moving away from each other, the bag opening is converted from an open state to a closed state. In this embodiment, the pressure rod 5112 can also slide relative to the stand 5111 in the front-back direction, that is, the user can adjust the length of the pressure rod 5112 extending into the bag 100 according to the size of the packaging bag 100 or the sealing requirements.

[0055] Each bag closing assembly 511 also includes a clamping jaw 5113 for clamping on the left / right side edge of the packaging bag 100. The clamping jaw 5113 is arranged on the stand 5111 and moves synchronously with the pressure rod 5112 on the same side in the left-right direction, and the clamping jaw 5113 and the pressure rod 5112 are located at the same height to ensure that the clamping jaw 5113 and the pressure rod 5112 can act on the packaging bag 100 at the same time, so that the bag mouth of the packaging bag 100 can be closed neatly, which is convenient for subsequent sealing operations. In this embodiment, the clamping jaw 5113 is relatively slidably arranged on the stand 5111 along the left-right direction, that is, the user can adjust the distance between the clamping jaw 5113 and the pressure rod 5112 along the left-right direction as needed to adapt to packaging bags 100 of different sizes. When the bag closing assembly 511 closes the bag mouth of the packaging bag 100, the pressure rod 5112 is partially / entirely located on the inner side of the packaging bag 100, and the clamping jaw 5113 is located on the outer side of the packaging bag 100. In this embodiment, the pressure rod 5112 and the clamping jaw 5113 are arranged to be adjustable in height, that is, the user can adjust the height of the pressure rod 5112 and the clamping jaw 5113 relative to the stand 5111 as needed.

[0056] See attached Fig.10 To Attachment Fig.12 As shown, the packaging equipment also includes a bag-opening mechanism 6 for further opening the bag opening in the up and down directions to facilitate the entry of the product 200 to be packaged into the packaging bag 100. The bag-opening mechanism 6 includes an upper bag-opening assembly 61 and a lower bag-opening assembly 62 which can be lifted and lowered in the vertical direction respectively. Specifically, the upper bag support assembly 61 includes two groups of upper clamping members 611 that are arranged at intervals along the left-right direction and can be clamped on the front edge of the upper bag body, and the two groups of upper clamping members 611 can be arranged relatively far away or relatively close, and the upper bag support assembly 61 also includes an upper mounting cross bar 612 for installing the two groups of upper clamping members 611, and a third driving member 613 for driving the upper mounting cross bar 612 to move in the vertical direction. In this embodiment, the vacuum extraction mechanism 52 is arranged on the upper mounting cross bar 612; the lower bag support assembly 62 includes two groups of lower clamping members 621 that are arranged at intervals along the left-right direction and can be clamped on the front edge of the lower bag body, and the two groups of lower clamping members 621 can be arranged relatively far away or relatively close, and the lower bag support assembly 62 also includes a lower mounting cross bar 622 for installing the two groups of lower clamping members 621, and a fourth driving member 623 for driving the lower mounting cross bar 622 to move in the vertical direction. In this embodiment, the third driving member 613 and the fourth driving member 623 are both cylinders, and the telescopic rods of the third driving member 613 and the fourth driving member 623 can telescopically move in the vertical direction.

[0057] The upper clamping member 611 and the lower clamping member 621 each include a first cylinder 6a, a fixing member 6b driven by the first cylinder 6a to move in the front-to-back direction, and a second cylinder 6c fixed on the fixing member 6b, wherein the first cylinder 6a is adjustably arranged on the upper mounting cross bar 612 / lower mounting cross bar 622 in the left-right direction, the telescopic direction of the telescopic rod of the first cylinder 6a extends in the front-to-back direction, the fixing member 6b and the protruding end of the telescopic rod of the first cylinder 6a are fixedly connected, the telescopic direction of the telescopic rod of the second cylinder 6c extends in the vertical direction, and a clamping member 6d is fixed on the protruding end of the second cylinder 6c, and when the telescopic rod of the second cylinder 6c is extended, the clamping member 6d approaches the fixing member 6b and clamps the front edge of the upper bag body / lower bag body.

[0058] The packaging bag loading mechanism 1 includes a feeding table 11 for supplying empty packaging bags 100, and a feeding rack 12 that can move in the left-right direction and the up-down direction. The feeding table 11 is arranged on one or both sides of the workbench 2 in the left-right direction, and the feeding rack 12 is provided with multiple upper adsorption parts 121 with adsorption ports facing downwards.

[0059] Specifically, see Appendix Figure 1 and attached Figure 2 As shown, the feeding rack 12 is provided with multiple rows of upper adsorption members 121 arranged at intervals in the front-to-back direction to ensure that the upper adsorption members 121 on the feeding rack 12 can uniformly adsorb the packaging bags 100. The packaging bag feeding mechanism 1 also includes a first guide rail frame 13 extending in the left-right direction, a second guide rail frame 14 that can be relatively slidably arranged on the first guide rail frame 13 in the left-right direction, and a third guide rail frame 15 that can be slidably arranged on the second guide rail frame 14 in the front-to-back direction. Among them, the second guide rail frame 14 extends in the front-to-back direction, the third guide rail frame 15 extends in the vertical direction, and the feeding rack 12 is relatively slidably arranged on the third guide rail frame 15 in the up-down direction. In this way, it can be ensured that the feeding rack 12 can transport the packaging bags 100 on the feeding table 11 to the workbench 2 in the left-right direction, and at the same time can adjust the position of the packaging bags 100 in the front-to-back direction.

[0060] See attached Figure 3 As shown, the bag opening mechanism 3 includes a lower adsorption member 31 arranged below the workbench 2 and with the adsorption port facing upward. A packaging station for packaging operation is provided on the workbench 2. The lower adsorption member 31 is located in front of the packaging station. When the packaging bag 100 is located at the packaging station, the lower adsorption member 31 is located below the front of the packaging bag 100, and part of the upper adsorption member 121 is located above the front of the packaging bag 100. When the lower adsorption member 31 moves away from the upper adsorption member 121, the bag mouth of the packaging bag 100 can be initially opened.

[0061] See attached Figure 1 and attached Figure 2As shown, the packaging equipment also includes a conveying mechanism 7 for conveying the product 200 to be packaged, and a limiting mechanism (not shown in the figure) for limiting the backward conveying position of the product 200 to be packaged. The conveying mechanism 7 includes two groups of conveyor belts 71 arranged at intervals along the left-right direction. The bagging mechanism 4 includes a material transfer seat 41. The material transfer seat 41 can be translated along the front-back direction and can be lifted and lowered in the vertical direction. The material transfer seat 41 is located between the two groups of conveyor belts 71 along the left-right direction, and the material transfer seat 41, the limiting mechanism and the conveying mechanism 7 are all located in front of the workbench 2.

[0062] The following describes in detail the operation method of the fully automatic vacuum packaging equipment of this embodiment:

[0063] The feeding rack 12 moves to the upper side of the feeding platform 11 , and then moves downward. The upper suction piece 121 suctions the upper bag body of the packaging bag 100 , and the feeding rack 12 transports the packaging bag 100 to the workbench 2 .

[0064] The lower suction member 31 of the bag opening mechanism 3 is sucked onto the lower bag body of the packaging bag 100 , the upper suction member 121 and the lower suction member 31 are relatively separated, and the bag opening of the packaging bag 100 is opened.

[0065] The upper clamping piece 611 of the upper bag support assembly 61 clamps the front edge of the upper bag body of the packaging bag 100, and the lower clamping piece 621 of the lower bag support assembly 62 clamps the front edge of the lower bag body. The upper bag support assembly 61 and the lower bag support assembly 62 move away from each other, so that the bag mouth of the packaging bag 100 is further opened.

[0066] The material transfer seat 41 moves upward to separate the product 200 to be packaged from the transmission mechanism 7, and the material transfer seat 41 moves backward until the product to be packaged is conveyed into the packaging bag 100, and the material transfer seat 41 returns to the initial position to wait for the next bagging.

[0067] The vacuum tube 521 moves backward until the vacuum action rod 5211 is inserted into the bag opening of the packaging bag 100, and the two groups of pressure rods 5112 of the bag closing mechanism 51 are inserted into the bag opening of the packaging bag 100. The two groups of clamps 5113 clamp the left and right sides of the packaging bag 100 respectively, and the two groups of bag closing components 511 move to the left and right respectively, so that the front edge of the upper bag body of the packaging bag 100 and the front edge of the lower bag body are close to each other.

[0068] The upper crossbeam 531 and the lower crossbeam 532 of the sealing mechanism 53 move towards each other until the upper pressing piece 5311 and the lower pressing piece 5321 contact each other. At this time, the vacuum action rod 521 is located between the upper pressing piece 5311 and the lower pressing piece 5321. The air in the packaging bag 100 is exhausted through the vacuum tube 521, and the vacuum tube 521 moves forward until the vacuum action rod 521 is drawn out from the bag opening of the packaging bag 100. The upper crossbeam 531 and the lower crossbeam 532 continue to move towards each other until the upper heat pressing piece 5312 and the lower heat pressing piece 5322 contact each other, thereby achieving fixed heat sealing of the bag opening of the packaging bag 100.

[0069] To sum up, in the fully automatic vacuum packaging equipment of this embodiment, the packaging bag feeding mechanism 1 can transfer the empty packaging bags 100 one by one to the workbench 2, the bag opening mechanism 3 can open the bag mouth of the packaging bag 100, the bag loading mechanism 4 can load the product 200 to be packaged into the packaging bag 100, and the bag sealing device 5 can realize the extraction of air in the packaging bag 100 and the fixed heat sealing of the bag mouth of the packaging bag 100. The whole process can be fully automated without the need for manual auxiliary operation, thereby improving work efficiency and reducing costs. At the same time, various functional modules are integrated into one, the whole equipment has a compact structure and high space utilization.

[0070] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic vacuum packaging equipment, characterized in that: include: A packaging bag loading mechanism is used to transfer empty packaging bags to a workbench one by one, wherein the length direction of the packaging bag is arranged along the front-to-back direction, the bag opening of the packaging bag faces forward, the packaging bag has an upper bag body located at the top and a lower bag body located at the bottom, the bag opening has an open state and a closed state, when the bag opening is in the open state, the front side edge portion of the upper bag body and the front side edge portion of the lower bag body are separated in the up-down direction; when the bag opening is in the closed state, the front side edge portion of the upper bag body and the front side edge portion of the lower bag body are close to each other in the up-down direction; A bag opening mechanism, used for opening the bag opening of the packaging bag in the up-down direction; A bag-opening mechanism, used for further opening the bag opening in the up-down direction; A conveying mechanism, used for conveying the products to be packaged; A bagging mechanism, used for delivering the product to be packaged from the bag opening to the rear of the packaging bag; The bag sealing device comprises a bag closing mechanism for closing the bag opening in the up-down direction, a vacuuming mechanism for evacuating the inside of the packaging bag, and a sealing mechanism for fixing and heat-sealing the bag opening, wherein: The bag closing mechanism comprises two groups of bag closing components respectively arranged on the left and right sides, each group of the bag closing components comprises a stand capable of moving in the left-right direction, and a sheet-shaped pressure rod arranged on the stand capable of moving in the front-back direction, and in the process that the two groups of pressure rods extend into the bag opening and move away from each other, the bag opening is converted from the open state to the closed state, and each group of the bag closing components further comprises a clamping claw for clamping on the left / right side edge of the packaging bag, the clamping claw is arranged on the stand and moves in the left-right direction synchronously with the pressure rod on the same side; The sealing mechanism comprises an upper crossbeam and a lower crossbeam, wherein the upper crossbeam and the lower crossbeam can be respectively arranged to rise and fall in the vertical direction, an upper pressing piece and an upper hot pressing piece are arranged at the bottom of the upper crossbeam, and a lower pressing piece and a lower hot pressing piece are arranged at the top of the lower crossbeam, the bottom surface of the upper pressing piece is lower than the bottom surface of the upper hot pressing piece, and the top surface of the lower pressing piece is higher than the top surface of the lower hot pressing piece, the upper pressing piece and the lower pressing piece can be arranged to be elastically deformed in the up and down directions, the vacuuming mechanism can be arranged to be adjustable in height in the vertical direction, the vacuuming mechanism at least has a hollow vacuuming tube, the vacuuming tube extends in the front-to-back direction and can be arranged to move relatively in the front-to-back direction, the upper pressing piece is located behind the upper hot pressing piece, and the lower pressing piece is located behind the lower hot pressing piece; The vacuum tube has a vacuum action rod located at the rear and capable of extending backward into the packaging bag. The vacuum action rod is provided with a negative pressure adsorption port. The vacuum action rod is flat. When the vacuum action rod is extended into the packaging bag, the negative pressure adsorption port is located behind the upper pressing piece and the lower pressing piece.

2. The fully automatic vacuum packaging equipment according to claim 1, characterized in that: The bag supporting mechanism includes an upper bag supporting assembly and a lower bag supporting assembly which can be lifted and lowered in the vertical direction respectively. The upper bag supporting assembly includes two groups of upper clamping members which are arranged at intervals along the left-right direction and can be clamped on the front edge of the upper bag body, and the two groups of upper clamping members can be arranged relatively far away or relatively close; the lower bag supporting assembly includes two groups of lower clamping members which are arranged at intervals along the left-right direction and can be clamped on the front edge of the lower bag body, and the two groups of lower clamping members can be arranged relatively far away or relatively close.

3. The fully automatic vacuum packaging equipment according to claim 1, characterized in that: The packaging bag loading mechanism includes a feeding table for supplying empty packaging bags, and a feeding rack capable of moving in left-right and up-down directions. The feeding table is arranged on one or both sides of the workbench in the left-right direction, and the feeding rack is provided with a plurality of upper adsorption parts with adsorption ports facing downwards.

4. The fully automatic vacuum packaging equipment according to claim 3, characterized in that: The bag opening mechanism includes a lower adsorption member arranged below the workbench with the adsorption port facing upwards. The workbench is provided with a packaging station for packaging operations. The lower adsorption member is located in front of the packaging station. When the packaging bag is located at the packaging station, the lower adsorption member is located below the front of the packaging bag, and part of the upper adsorption member is located above the front of the packaging bag.

5. The fully automatic vacuum packaging equipment according to claim 1, characterized in that: The packaging equipment also includes a limiting mechanism for limiting the backward transmission position of the product to be packaged, the transmission mechanism includes two groups of conveyor belts arranged at intervals in the left and right directions, and the bagging mechanism includes a material transfer seat, which can be translated in the front and rear directions and can be lifted and lowered in the vertical direction. The material transfer seat is located between the two groups of conveyor belts in the left and right directions, and the material transfer seat, the limiting mechanism and the transmission mechanism are all located in front of the workbench.

6. A fully automatic vacuum packaging method, characterized in that: Based on the fully automatic vacuum packaging equipment according to any one of claims 1 to 5, the packaging method comprises the following steps: The packaging bag loading mechanism transfers the empty packaging bags to the workbench one by one; The bag opening mechanism opens the bag opening of the packaging bag in the up-down direction; The bag-opening mechanism further opens the bag opening in the up-down direction; The bagging mechanism delivers the product to be packaged into the packaging bag; The bag opening is closed in the up-down direction by the bag closing mechanism; The packaging bag is vacuumed by the vacuum pumping mechanism, wherein the vacuum pumping tube is moved backward until the vacuum action rod is inserted into the bag opening of the packaging bag, the two groups of pressure rods of the bag closing mechanism are inserted into the bag opening of the packaging bag, the two groups of clamping jaws clamp the left and right side edges of the packaging bag respectively, and the two groups of bag closing components move to the left and right sides respectively, so that the front edge of the upper bag body of the packaging bag and the front edge of the lower bag body are close to each other; The bag opening is fixedly heat-sealed by the sealing mechanism, wherein the upper crossbeam and the lower crossbeam of the sealing mechanism move toward each other until the upper pressing piece and the lower pressing piece contact each other, at which time the vacuum action rod is located between the upper pressing piece and the lower pressing piece, and the air in the packaging bag is evacuated through the vacuum tube, and the vacuum tube moves forward until the vacuum action rod is drawn out from the bag opening of the packaging bag, and the upper crossbeam and the lower crossbeam continue to move toward each other until the upper heat pressing piece and the lower heat pressing piece contact each other, thereby achieving fixed heat sealing of the bag opening of the packaging bag.

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