CN113247323A

CN113247323A - Internet of things-based control inflation device, inflation method and automatic packaging machine

Info

Publication number: CN113247323A
Application number: CN202110501357.8A
Authority: CN
Inventors: 陈宏伟; 葛瑞华; 陈奇; 周燕霞; 慈曾超; 张桂芝; 周靖; 李俐; 刘华莲
Original assignee: Anhui Qianqian Food Design Research Institute; QIAQIA FOOD CO LTD
Current assignee: Anhui Qianqian Food Design Research Institute; QIAQIA FOOD CO LTD
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-08-13
Anticipated expiration: 2041-05-08
Also published as: CN113247323B

Abstract

The invention discloses an internet of things-based control inflation device, an inflation method and an automatic packaging machine, belongs to the technical field of packaging equipment, and comprises a main inflation pipe group. The protective gas is filled in the packaging bag by using the inflating device, so that the shelf life of the material is effectively prolonged.

Description

Internet of things-based control inflation device, inflation method and automatic packaging machine

Technical Field

The invention belongs to the technical field of packaging equipment, and particularly relates to an inflation device, an inflation method and an automatic packaging machine based on Internet of things control.

Background

The existing particulate matter (such as melon seeds, rice, soybeans and the like) materials are packaged into bags and are automatically packaged by a common automatic packaging machine, and the bag packaging machine has the characteristics of high automation degree, stable packaging and the like, such as a KHP-II type automatic packaging machine produced by Hengkang mechanical manufacturing Limited company in Anhui province. However, in food packaging, the packaging bag contains a certain amount of oxygen, and the higher the oxygen content is, the faster the food mildews. During the production process, the packaging tape is often filled with protective gas to prolong the shelf life of the food. How to increase the content of the protective gas in the packaging bag as much as possible in production and further reduce the oxygen in the packaging bag is the direction of continuous improvement of equipment for manufacturers.

The problem of too high oxygen content in a packaging bag in the process of filling and packaging materials is solved. The materials need to be filled with protective gas in the packaging process, and the commonly used safe protective gas is nitrogen, carbon dioxide and the like.

Some other automatic packaging machines also comprise an air charging device, and as an invention patent, the publication number CN108248929A discloses a horizontal packaging bag conveying mechanism in 2018, month 07 and 06, which comprises a frame feeding turntable, a feeding sub-clamp mechanism is arranged on the feeding turntable, an air charging sub-clamp mechanism is arranged on the frame, a conveying frame and a conveying guide rail are arranged between the feeding sub-clamp mechanism on the feeding turntable and the feeding sub-clamp mechanism on the frame, a conveying slide block is arranged on the conveying guide rail, the conveying slide block is connected with a conveying power source, an opening power source is arranged on the conveying slide block through an opening clamp seat, and the opening power source is connected with an opening clamp assembly. The invention is transferred to the inflatable sub-clamp mechanism by clamping the packaging bag by the feeding sub-clamp mechanism. The air inflation pipe on the frame continuously and repeatedly supplies and fills nitrogen gas to the packaging bag for continuous rotation of the frame, thereby effectively avoiding waste caused by overdue materials and obviously improving the packaging quality of the materials. The air inflation mode fills nitrogen into the packaging bag from the bag mouth of the packaging bag to finish air inflation. In the inflation mode, a large amount of air still enters the packaging bag along with nitrogen when the packaging bag is inflated, and the inflation effect is poor.

Also like the chinese utility model with publication number CN209506196U, the patent publication number CN209506196U discloses a nitrogen charging mechanism of a packaging machine in 2018, 12.9.s, which comprises a column, a cylinder and a support frame fixed on the column, a plurality of nitrogen elbows arranged on the cylinder, and a baffle plate arranged on the support frame; the lower end of the baffle is provided with a packaging bag to be filled with nitrogen, and the distance between the baffle and the upper bag opening end of the packaging bag to be filled with nitrogen is not more than 3 mm; the air outlet end of the nitrogen bent pipe penetrates through the baffle plate to be opposite to the bag opening of the packaging bag on the nitrogen filling station, and the baffle plate is provided with a plurality of round holes for the plurality of nitrogen bent pipes to respectively penetrate through; a silica gel sheet capable of covering a plurality of circular holes simultaneously is fixedly clamped on the air outlet ends of the nitrogen bent pipes; the air outlet ends of the nitrogen bent pipes are controlled by the air cylinder to stretch into or withdraw from the packaging bag, and when the air outlet ends of the nitrogen bent pipes stretch into the packaging bag to be filled with nitrogen, the silica gel sheet abuts against the baffle plate to seal the circular holes. In this way, the utility model discloses can effectual improvement fill the ability of nitrogen efficiency and the incomplete oxygen of discharge, solve the fresh-keeping in the food package bag and the unqualified problem of incomplete oxygen. The mode can only charge nitrogen into the packaging bag at the nitrogen charging station and discharge residual oxygen. But when the wrapping bag moved to other stations in-process, the wrapping bag mouth continued to be exposed under the air, and outside air can continue to get into in the wrapping bag for air content is more in the final encapsulation wrapping bag, and the gassing effect is poor, and the oxygen of material clearance department in the wrapping bag can't be got rid of simultaneously, leads to oxygen content in the whole wrapping bag higher.

In summary, the problems in the prior art are: because the existing automatic packaging machine only inflates the packaging bag in a certain link when packaging food materials, the bag mouth of the packaging bag is in an open state in other links, the air content in the packaging bag before sealing can not be in a lower level, the shelf life of the materials is shorter, and the food is easy to mildew.

Disclosure of Invention

1. Problems to be solved

Aiming at the problems in the prior art, the invention provides an internet of things-based control inflation device, an inflation method and an automatic packaging machine, so that the air content in a packaging bag before sealing is at a lower level, and the shelf life of materials is effectively prolonged.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

the invention provides an internet of things control-based inflation device which comprises a main inflation pipe group, wherein the main inflation pipe group comprises a plurality of air pipes and air outlets corresponding to the air pipes, the air outlets are arranged at different stations of an automatic packaging machine, so that when a packaging bag approaches the stations, the air outlets release protective gas, and the protective gas enters the packaging bag to reduce the oxygen content in the packaging bag.

Preferably, the gas outlets comprise a first group of gas outlets, and the first group of gas outlets release the protective gas from outside into the packaging bag.

Preferably, the gas outlets comprise a second group of gas outlets, the second group of gas outlets are arranged on the channel of the material path, and the protective gas released by the second group of gas outlets is filled in the material gap and enters the packaging bag along with the material.

The invention provides an inflation method, which comprises the following inflation steps: preliminary inflation: at a bag opening station, extending the air outlet A of the first group of air outlets into the packaging bag from the bag opening of the packaging bag, filling protective gas from the bottom of the packaging bag, and exhausting air in the packaging bag; auxiliary inflation: and at the filling station, filling the material gap with the protective gas released by the second group of gas outlets, and entering the packaging bag along with the material.

Preferably, supplemental aeration: at a compaction station, the air outlet B of the first group of air outlets enters the packaging bag along with a compaction device to release protective gas, and air between the materials in the packaging bag and the bag opening is discharged; transferring and inflating: and the packaging bag moves from the compaction station to the sealing station, the gas outlet C of the first group of gas outlets enters protective gas released in the packaging bag and is discharged from air between materials and the bag opening in the packaging bag.

The invention provides an automatic packaging machine for inflating a packaging bag by using the Internet of things-based control inflation device and the inflation method.

Preferably, including propping the bagging apparatus, it can stretch into to prop to be equipped with a pair of flaring mechanism in the wrapping bag on the bagging apparatus, its characterized in that, flaring mechanism bottom mounting A gas outlet, the A gas outlet is followed flaring mechanism gets into the release of wrapping bag bottom protective gas.

Preferably, including the compaction device, the compaction device includes the compaction board and sticiss the piece, sticis the piece and crosses along thickness direction the compaction board center, be the hollow tube in the middle of the tight briquetting, the hollow tube intercommunication the trachea, the hollow tube bottom is the B gas outlet, the tight briquetting is followed wrapping bag sack department gets into in the wrapping bag, from the top down extrusion when the material B gas outlet release protective gas.

Preferably, the material transferring and inflating device comprises a sealing plate and an inflating nozzle, the inflating nozzle penetrates through the middle of the sealing plate and is fixed on the sealing plate, the inflating nozzle is communicated with the air pipe group, the bottom of the inflating nozzle is the C air outlet, the inflating nozzle enters the packaging bag from the opening of the packaging bag and follows the material transferring, and the C air outlet releases protective gas.

Preferably, including irritating the material device, it includes feed bin, combination balance device, transition fill group and irritates the material fill to irritate the material device, the material passes through in proper order feed bin, combination balance device, transition fill group and irritate the material fill the back and get into the wrapping bag, its characterized in that, second group gas outlet can set up respectively on the feed bin, combination balance device, transition fill group and irritate the passageway that the material flows through in the material fill, the gas filling that the gas outlet of second group released flows through the passageway material clearance department to follow the material entering the wrapping bag.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the internet of things control-based inflation device provided by the invention, the packaging bag is always in an inflated state in the packaging process until the sealing is finished, so that the interior of the packaging bag is always in a low-oxygen environment in the packaging process.

(2) The gas outlet of the control inflation device based on the Internet of things comprises a first group of gas outlets, and the first group of gas outlets enter the packaging bag from the outside to release the protective gas. Compared with the method of inflating from the bag opening of the packaging bag, the method has the advantages that the protective gas body is inflated from the bottom of the packaging bag, and then the air in the packaging bag is discharged from bottom to top, so that the air is discharged more thoroughly, and the oxygen content in the packaging bag is lower.

(3) The air outlets comprise a second group of air outlets, the second group of air outlets are arranged on a channel of the material path, and protective gas released by the second group of air outlets is filled in a gap of the material and enters the packaging bag along with the material. So that a higher content of protective gas can be maintained also in the material gaps in the packaging bag. Further improving the content of the protective gas in the packaging bag.

(4) The invention provides an inflation method, which comprises the steps of initial inflation, auxiliary inflation, supplementary inflation and transfer inflation.

(5) The automatic packaging machine is provided with the inflation device at each station, and the inflation is carried out by using the inflation method. The automatic packaging bag has an inflation function, can complete automatic packaging of materials, can inflate the packaging bag, enables the oxygen content in the packaging bag to be low, and prolongs the quality guarantee period of the materials.

Drawings

FIG. 1 is a schematic view of the overall structure of the automatic packaging machine of the present invention;

FIG. 2 is a schematic view of the inflator device of the present invention;

FIG. 3 is a three-dimensional schematic view of the station and apparatus of the automatic packaging machine of the present invention;

FIG. 4 is a schematic view of a bag opening device according to the present invention;

FIG. 5 is a schematic view of a compaction apparatus according to the present invention;

FIG. 6 is a schematic view of a transfer inflator of the present invention;

FIG. 7 is a schematic view of the distribution of the stations of the automatic packaging machine of the present invention;

FIG. 8 is a schematic view of a storage bin according to the present invention;

FIG. 9 is a schematic view showing the connection of the bin, the sealing glass cover and the air return pipe according to the present invention;

FIG. 10 is a schematic view of a circular tube according to the present invention;

FIG. 11 is a schematic structural view of a negative pressure bag opening device according to the present invention;

in the figure:

1. a main inflation tube set; 11. an air tube;

2. inflating a gas source;

3. an air outlet; 31. a first set of air outlets; 311. a, an air outlet; 312. b, an air outlet; 32. a second set of air outlets; 313. c, an air outlet;

4. a station; 41. a bagging station; 42. a negative pressure bag opening station; 43. a bag opening station; 44. a material filling station; 45. compacting the station; 46. transferring a station; 47. a sealing station;

5. packaging bags;

6. an automatic packaging machine;

61. a bag opening device; 611. a flaring mechanism; 6111. rotating the bracket; 6111a, a first rotating bracket; 6111b, a second rotating bracket; 6112a, a first jaw; 6112b, a second jaw; 612. a drive mechanism; 6121. a lifting plate; 6122. a drive rod;

62. a material filling device; 621. a storage bin; 6211. a circular tube; 6212. a cavity; 6213. a through hole; 622. a combination scale device; 6221. sealing the isolation cover; 6222. a return pipe; 623. a transition bucket group; 624. filling a hopper; 625. a channel;

63. a compaction device; 631. compacting the plate; 632. pressing the block tightly; 633. a hollow tube; 634. a third compressor;

64. transferring the inflator; 641. a sealing plate; 642. an air charging nozzle;

65. rotating the lifting table;

7. a negative pressure bag opening device;

71. a first exhaust tube; 711. a first clamping rod; 712. a first crank link; 713. a second crank connecting rod; 714. a third crank connecting rod;

72. a second extraction tube; 721. a second clamping rod; 722. an L-shaped crank connecting rod; 723. a fourth crank link; 724. a fifth crank connecting rod; 725. a sixth crank connecting rod;

731. a first hinge joint; 732. a second hinge joint; 733. a third articulating head.

Detailed Description

The following detailed description of exemplary embodiments of the invention refers to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration exemplary embodiments in which the invention may be practiced. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be realized and that various changes to the invention may be made without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is presented for purposes of illustration only and not limitation to describe the features and characteristics of the invention, to set forth the best mode of carrying out the invention, and to sufficiently enable one skilled in the art to practice the invention. Accordingly, the scope of the invention is to be limited only by the following claims.

The following detailed description is made in conjunction with the accompanying drawings:

based on thing networked control aerating device

As shown in fig. 2, the invention provides an internet-of-things-based control inflation device, which comprises a main inflation tube group 1 and an inflation source 2, wherein the inflation source 2 stores protective gas (nitrogen, carbon dioxide and other gases harmless to human bodies), the main inflation tube group 1 is connected to the inflation source 2, the main inflation tube group 1 comprises a plurality of air tubes 11, the tail ends of the air tubes 11 are air outlets 3, air valves (such as electromagnetic valves, air pressure valves and the like) are arranged on the air tubes 11, and the air valves control the air output of the air outlets 3. The protective gas released by the gas filling source 2 enters the plurality of gas pipes 11 for transmission and is released to different positions, and the released protective gas enters the packaging bag 5 from each link of automatic packaging to discharge the original air in the packaging bag 5 so as to reduce the oxygen content in the packaging bag 5. The automatic packaging bag has the advantages that the packaging bag is always in an inflated state in the automatic packaging process, and materials in the packaging bag 5 are always in a low-oxygen environment until the packaging bag is sealed. The packaging bag 5 is packaged by different stations 4 on the packaging machine, and the gas outlet 3 is arranged at different stations 4 on the way of the packaging bag 5, so that when the packaging bag 5 approaches the stations 4, the gas outlet 3 releases protective gas to enter the packaging bag 5 to reduce the oxygen content in the packaging bag 5. Wherein the air outlets 3 are divided into a first group of air outlets 31 and a second group of air outlets 32 according to the inflation mode. The envelope 5 is inflated in such a way that the first set of air outlets 31 release the protective gas from the outside into the envelope 5. The protective gas released from the second set of gas outlets 32 fills the gap between the materials and follows the materials into the package 5.

Inflation method

The invention provides an inflation method, which is used for controlling the inflation of the inflation device based on the Internet of things and aims to reduce the oxygen content in the packaging bag 5 in the production process as much as possible. The inflation method of the invention comprises the following steps:

first step preliminary inflation, opening bag station 43 department, using to prop bagging apparatus 61 and propping 5 mouths of wrapping bag, aerating device's gas outlet 3 is the A gas outlet 311 of first group gas outlet 31, follows it gets into to prop bagging apparatus 61 release protective gas, exhaust air in the wrapping bag 5. The advantage of releasing the protective gas from the bottom of the packaging bag 5 is that the protective gas is released from the inside of the packaging bag 5, and then the air in the packaging bag 5 is discharged from bottom to top, so that the air is discharged more completely, and the oxygen content in the packaging bag 5 is lower.

And the second step of auxiliary inflation is carried out, the opened packaging bag 5 is conveyed into the filling station 44 at the filling station 44, the filling device 62 is used for filling the packaging bag 5, the second group of air outlets 32 are arranged on a channel 625 through which the material in the filling device 62 flows, and when the material flows through the channel 625, the air valve control air pipe 11 is opened, so that the protective gas is filled into the gap of the material, and the protective gas enters the packaging bag 5 along with the material. The step solves the problem that the air contained in the gaps of the materials entering the packaging bag 5 has a large influence on the quality guarantee period of the materials, and solves the problem that once the materials enter the packaging bag 5, the air between the materials is difficult to remove or replace.

And thirdly, supplementing and inflating, wherein the filled materials enter the compacting station 45 at the compacting station 45, and in the process of compacting the materials, the air outlets 312B of the second group of air outlets 32 enter the packaging bag 5 along with the compacting device 63 to supplement and inflate the packaging bag 5. Supplementary aeration is to avoid air entering the space above the material in the packaging bag 5 during the material compaction process, so that the air content in the part is high and the quality guarantee period of the material is influenced.

And a fourth step of transferring and inflating, wherein in the transferring station 46, the compacted packaging bags 5 are transferred into the sealing station 47, and in the process of transferring the materials to the sealing position, the C air outlets 313 of the second group of air outlets 32 enter the packaging bags 5 along with the transferring and inflating device 64 to be transferred and inflated. The transfer aeration is to avoid the air from entering the space above the materials in the packaging bag 5 in the process of transferring the materials to the sealing position, so that the air content of the part is higher and the quality guarantee period of the materials is influenced. The transfer inflation can ensure that the packaging bag 5 is always in a protective gas filling state before the packaging bag 5 is sealed in the automatic packaging process, so that the oxygen (air) content in the packaging bag 5 is at a lower level, and the quality guarantee period of the material is prolonged.

Automatic packaging machine

As shown in fig. 1, the present invention provides an automatic packaging machine having a function of filling a protection gas into a packaging bag 5 during a material packaging process of the packaging bag 5 using the internet-of-things-based controlled inflation apparatus and the inflation method. The concrete structure and the inflation mode are as follows:

the automatic packaging machine is further improved on the basis of a conventional automatic packaging machine (such as a KHP-II type automatic packaging machine produced by the constant health machinery manufacturing company Limited in Anhui province), so that the automatic packaging machine keeps inflating the packaging bag 5 from opening the packaging bag 5 to finishing sealing the packaging bag 5 in the material packaging process, the packaging bag 5 is kept under a low oxygen condition all the time in the packaging process, the oxygen content of the materials in the packaging bag 5 is low, and the quality guarantee period of the materials is long.

As shown in fig. 7, the automatic packaging machine generally includes a station 4 rotating table, a plurality of different processing stations 4 are arranged at the circumference of the station 4 rotating table, and generally includes a bag feeding station 41 (for loading the packaging bag 5 onto the station 4 rotating table), a bag opening station 43 (for opening the packaging bag 5 preliminarily), a bag opening station 43 (for further opening the packaging bag 5), a filling station 44 (for filling the packaging bag 5 with material), and a sealing station 47 (for hot-pressing and sealing the packaging bag 5). The material packaging sequentially passes through the processes of bagging by the packaging bag 5, opening the bag by negative pressure, opening the bag, filling the material and performing heat sealing, and the material is conveyed to a conveying line after the material packaging is finished. And a rotary lifting table 65 is arranged in the middle of the turntable of the station 4, and the lifting and the rotation of the rotary lifting table are controlled by a first telescopic cylinder.

A primary inflation step:

1. go up bag, negative pressure and open bag

The stacked packaging bags 5 are picked and placed on the bag-feeding station 41 by the bag-feeding robot. The packaging bag 5 at the bag loading station 41 is rotated to the negative pressure bag opening station 42 by the station 4 turntable.

Due to the transportation of the packaging bags 5, the bag openings are completely closed when the station 4 is installed, and at the moment, the bag openings of the packaging bags 5 need to be opened at a certain angle, so that the material packaging work can be completed more accurately in the subsequent steps.

As shown in fig. 11, in order to solve the above problem, the conventional automatic packaging machine is provided with a negative pressure bag opening device 7, and the negative pressure bag opening device 7 includes a suction pipe group which is divided into a first suction pipe 71 and a second suction pipe 72, and the first suction pipe 71 and the second suction pipe 72 are located on the same horizontal plane and have pipe openings facing each other. The air exhaust pipe group is connected with an air exhauster, and when the air exhauster is started, the pipe orifices of the first air exhaust pipe 71 and the second air exhaust pipe 72 generate negative pressure due to air exhaust.

The first suction pipe 71 and the second suction pipe 72 are controlled to move using a link mechanism. The link mechanism comprises a first clamping rod 711 and a second clamping rod 721, the first clamping rod 711 fixedly clamps the first air exhaust pipe 71, the second clamping rod 721 fixedly clamps the second air exhaust pipe 72, the first clamping rod 711 is hinged with a first rotating pair, and the first rotating pair comprises a first crank connecting rod 712, a second crank connecting rod 713 and a third crank connecting rod 714 which are sequentially hinged with the first clamping rod 711 end to end; the first joint 731 is formed at the joint of the first crank connecting rod 712 and the second crank connecting rod 713, and the second joint 732 is formed at the joint of the second crank connecting rod 713 and the third crank connecting rod 714. The second clamping rod 721 is hinged to a second revolute pair, the second revolute pair comprises an L-shaped crank connecting rod 722, the middle part of the L-shaped crank connecting rod 722 is fixedly connected with a fourth crank connecting rod 723, the fourth crank connecting rod 723 is sequentially hinged to a fifth crank connecting rod 724 and a sixth crank connecting rod 725 end to end, the tail end of the sixth crank connecting rod 725 is hinged to the second clamping rod 721, and a third hinged joint 733 is arranged at the hinged joint of the fifth crank connecting rod 724 and the sixth crank connecting rod 725.

The first revolute pair and the second revolute pair are hinged together through a short rod, specifically, the first hinge joint 731 is hinged with the L-shaped crank connecting rod 722 through a short rod, and the fifth crank connecting rod 724 and the third crank connecting rod 714 are fixedly connected together through a short rod between the second hinge joint 732 and the third hinge joint 733. When the power device controls the L-shaped crank connecting rod 722 to rotate clockwise, the second air suction pipe 72 moves leftwards, the fourth crank connecting rod 723 rotates clockwise along with the L-shaped crank connecting rod 722, and the fifth crank connecting rod 724 hinged with the fourth crank connecting rod 723 rotates anticlockwise, so that the third crank connecting rod 714 fixedly connected with the fifth crank connecting rod 724 is driven to rotate anticlockwise, the first air suction pipe 71 moves rightwards, and the first air suction pipe 71 and the second air suction pipe 72 move in opposite directions; conversely, the first suction pipe 71 and the second suction pipe 72 move toward each other.

The working principle of the negative pressure bag opening device 7 is that the bag opening of the packaging bag 5 on the negative pressure bag opening station 42 is arranged between the first air exhaust pipe 71 and the second air exhaust pipe 72, the air extractor is started, so that the pipe openings of the first air exhaust pipe 71 and the second air exhaust pipe 72 generate negative pressure, two sides of the packaging bag 5 are adsorbed, and after adsorption is completed, the first air exhaust pipe 71 and the second air exhaust pipe 72 are controlled by the connecting rod mechanism to move in opposite directions, so that the bag opening of the packaging bag 5 is opened preliminarily. The initially opened packages 5 are transferred from the station 4 to the emptying station 4 by means of a turntable.

2. Bag opening and preliminary inflation

After 5 sack of wrapping bag tentatively struts, 5 lower extremes of wrapping bag are closed still, influence follow-up irritate material operation like this, in order not to influence follow-up irritate material, need prop bag processing to wrapping bag 5 for wrapping bag 5 opens completely.

As shown in fig. 3-4, the bag opening device 61 used for opening a bag includes a flaring mechanism 611 and a driving mechanism 612, the driving mechanism 612 includes a lifting plate 6121 and a driving rod 6122, one end of the lifting plate 6121 is fixed on the rotary lifting table 65, the rotary lifting table 65 drives the lifting plate to rotate and lift, the flaring mechanism 611 is fixed on the side wall of the other end of the lifting plate 6121, the flaring mechanism 611 includes a pair of rotary supports 6111 hinged at the middle (similar to the hinge structure of scissors), the hinge joint of the rotary supports 6111 is provided with a rectangular through hole, so that the hinge pin can move in the rectangular through hole, and the rotary supports 6111 are prevented from being locked in the rotating process. The rotating supports 6111 are a first rotating support 6111a and a second rotating support 6111b, respectively, and the first rotating support 6111a and the second rotating support 6111b are connected to the side wall of the lifting plate 6121 through a shaft rod and can freely rotate on the shaft rod. The driving rod 6122 is driven by a second telescopic cylinder (not shown in the figure) to do reciprocating linear motion, the second telescopic cylinder is arranged inside the boss of the rotary lifting table 65, the other end of the driving rod 6122 is fixed on a second rotary support 6111b, and when the driving rod 6122 does reciprocating motion, the first rotary support 6111a and the second rotary support 6111b are pulled to do reverse rotary motion around a hinge point at the middle part of the first rotary support 6111a and the second rotary support 6111 b.

The flaring mechanism 611 further includes a first claw 6112a and a second claw 6112b, which are fixed at the lower ends of the first rotating bracket 6111a and the second rotating bracket 6111b through rods, respectively, when the first rotating bracket 6111a and the second rotating bracket 6111b perform reverse rotation movement, the first claw 6112a and the second claw 6112b are driven to perform opening and closing movement, and when the first claw 6112a and the second claw 6112b are reversely opened, the packaging bag 5 is opened.

The bag opening process has two actions. The first action is: the rotary lifting platform 65 drives the driving mechanism to rotate to the filling station 44 from the negative pressure bag opening station 42 along with the turntable of the station 4, so that the driving mechanism always synchronously rotates along with the packaging bag 5; the second action is: the rotary elevating platform 65 controls the driving mechanism to ascend and descend, so that the flaring mechanism 611 can enter the packaging bag 5 to open the packaging bag 5. The working process is that after the bag opening under negative pressure is completed, the driving mechanism is driven by the rotary lifting table 65 to rotate to the negative pressure bag opening station 42, then the rotary lifting table 65 controls the driving mechanism to descend, so that the flaring mechanism 611 extends into the packaging bag 5, and the first clamping jaw 6112a and the second clamping jaw 6112b are opened reversely under the action of the driving mechanism to open the packaging bag 5.

The primary inflation mode is as follows: the air outlet A311 of the first group of air outlets 31 is fixed at the lower end claw tips of the first claw 6112a and the second claw 6112b, when the flaring mechanism 611 extends into the bottom end of the packaging bag 5, the air valve is controlled to be opened, protective air is filled into the packaging bag 5 through the air outlet A311, and then air in the packaging bag 5 is exhausted from the bottom of the packaging bag 5 from bottom to top, so that the air is exhausted more thoroughly, and the oxygen content in the packaging bag 5 is lower.

After the inflation is completed, the rotary lifting platform 65 rotates to drive the whole bag opening device 61 to lift upwards, the packaging bag 5 is withdrawn, and then the rotary lifting platform 65 rotates reversely to drive the bag opening device 61 to return to the negative pressure bag opening station 42 for the next bag opening operation.

An auxiliary inflation step:

3. filling and auxiliary inflation

As shown in fig. 2, the opened packaging bag 5 enters the filling station 44, the filling device 62 is used to fill the packaging bag 5 with the material, the filling device 62 includes a stock bin 621, the stock bin 621 is located above the combined scale device 622, the material enters the combined scale device 622 below from a discharge port of the stock bin 621, the combined scale device 622 is communicated with the transition hopper group 623, the material in the combined scale device 622 is weighed and then is placed into the transition hopper group 623, and when the packaging bag 5 correctly enters the filling station 44, the quantitative material in the transition hopper group enters the packaging bag 5 through the filling hopper 624. The storage bin 621, the combined scale device 622, the transition hopper group 623 and the filling hopper 624 are connected in sequence, and the interiors are communicated with each other to form a complete channel 625. Passageway 625 is divided into different sections according to its position, is located the inside feed bin section that is of feed bin 621, is located the inside combination balance section that is of combination balance device 622, is located the inside transition of fighting group 623 and fights the group section for the transition, is located to irritate the inside hopper section of irritating of hopper 624. The materials sequentially pass through the feed bin section, the combined scale section, the transition hopper section and the filling hopper section and enter the packaging bag 5.

When the auxiliary charging is performed, the air outlet 3 arranged in the charging device 62 is a second group of air outlets 32, the second group of air outlets 32 are provided with a plurality of branch air outlets which are respectively arranged on the passages 625 of the material paths of the storage bin 621, the combined scale device 622, the transition hopper group 623 and the charging hopper 624, and when the materials pass through the passages 625, the second group of air outlets 32 release protective gas into the passages 625 so as to replace the air at the material gaps.

As shown in fig. 8-10, with respect to the bin 621, the gas outlet of the second set of gas outlets 32 is a bin gas outlet disposed in the bin section of the passageway 625, and the material enters the combination weigher along with the shielding gas released from the bin gas outlet as the material passes through the bin section. A round pipe 6211 is fixed inside the bin 621, a cavity 6212 is formed inside the round pipe 6211, the cavity 6212 is communicated with the air pipe 11, a plurality of through holes 6213 are drilled in the wall of the round pipe 6211, and protective gas enters the cavity 6212 through the air pipe 11 and then dispersedly enters the material gap inside the bin 621 through the plurality of through holes 6213 in the wall of the round pipe 6211. Thereby discharging a portion of the air between the material gaps in the cartridge 621. The number of the round tubes 6211 can be one or more, and the cavities 6212 of a plurality of round tubes 6211 are communicated with each other in series or are communicated with the air pipe 11, so that the inflation effect is better.

With respect to combination weigher assembly 622, to prevent outside air from entering the material gap when weighing material on the combination weigher, combination weigher assembly 622 further includes a sealed enclosure 6221 that fits around the outer perimeter of the combination weigher, where sealed enclosure 6221 completely seals the combination weigher inside. The gas outlet of the second group of gas outlets 32 is a sealing cover gas outlet which is arranged in the sealing isolation cover 6221, the inner space of the whole sealing isolation cover is a combined scale section of the channel 625, and the gas outlet of the sealing cover releases protective gas into the sealing isolation cover 6221, so that the materials are isolated from outside air in the weighing process. In consideration of the weighing process, protective gas is introduced into the sealed glass cover through the second group of gas outlets 32, the gas pressure in the sealed glass cover is increased, and protective gas overflow is generated and wasted, so that the sealed glass cover is provided with the return pipe 6222, the return pipe 6222 leads to the storage bin 621, redundant protective gas in the sealed glass cover enters the storage bin 621 through the return pipe 6222, and accordingly, protective gas circulation can be formed, redundant protective gas in the sealed isolation cover 6221 is recycled, the poisoning risk of operators is reduced, and the waste of the protective gas is avoided. Further increasing the concentration of the protective gas at the material gap of the discharge hole of the storage bin 621. It should be noted that the air outlet of the return pipe 6222 needs to be provided with a plurality of dense small air outlets to prevent the material in the storage bin 621 from dropping into the sealing glass cover, or a baffle plate which is air-permeable and impermeable to the material is fixed at the air outlet of the return pipe 6222.

Regarding the transition bucket group 623, here, the gas outlet of the second group of gas outlets 32 is a transition bucket gas outlet, which is arranged at the transition bucket group section of the passage 625 through which the materials pass in the transition, the transition bucket group 623 includes a first transition bucket and a second transition bucket, the first transition bucket is responsible for receiving the combination scale to release the quantitative materials, which is communicated with the combination scale, and the second transition bucket is communicated with the material filling bucket 624. The material enters into the filling hopper 624 after passing through the first transition hopper and the second transition hopper in sequence. In order to further improve the content of the protective gas at the material gap, the gas outlets of the transition hoppers are respectively arranged on the channels 625 through which the materials of the first transition hopper and the second transition hopper pass.

Regarding the filling hopper 624, the outlet of the filling hopper 624 is opposite to the station of the filling station 44, the gas outlet of the second group of gas outlets 32 is the gas outlet of the filling hopper, the inner space of the filling hopper is the filling hopper section of the channel 625, the gas outlet of the filling hopper is arranged at the outlet of the filling hopper section, and the protective gas released from the gas outlet of the filling hopper follows the material to enter the packaging bag 5.

In the auxiliary inflation process, the second group of air outlets 32 are not limited to the above-mentioned positions, in order to reduce the oxygen content in the material gap as much as possible, the second group of air outlets 32 can be arranged anywhere in the channel 625 through which the material of the whole filling device 62 flows, and the larger the number of air outlets of the second group of air outlets 32, the lower the oxygen content in the material gap in the packaging bag 5, so that the shelf life of the material is longer.

And (3) supplementary inflation step:

4. compacting, supplementary inflating

As shown in fig. 5, when the material is filled into the packing bag 5, the material is accumulated at the bag mouth according to the shape of the packing bag 5, and if the compacting process is not performed, the material may interfere with the sealing operation when the packing bag 5 is sealed, so that the compacting device 63 is required to compact the material accumulated at the bag mouth of the packing bag 5, but inevitable air enters the bag from the bag mouth during the compacting process.

In order to solve the problems, a compacting station 45 is arranged on the rotary table of the station 4, the filled packaging bags 5 are conveyed to the compacting station 45, and compacting treatment is carried out on the packaging bags by a compacting device 63. The compacting device 63 includes a compacting plate 631 and a pressing block 632, the pressing block 632 crosses the center of the compacting plate 631 along the thickness direction and is fixed on the compacting plate 631, a hollow tube 633 is arranged in the middle of the pressing block 632, a B air outlet 312 is arranged at the bottom of the hollow tube 633, and the shielding gas released from the B air outlet 312 enters the packaging bag 5. The compacting plate 631 and the priming hopper 624 are fixed to the third compressor 634 by a steel plate, and move up and down along with the priming hopper 624.

The main working principle is that the compacting plate 631 presses downwards to enable the pressing block 632 to enter the packaging bag 5, materials at the opening of the packaging bag 5 are compacted downwards and then exit, meanwhile, in the process, the air port B312 releases protective gas, and air in the packaging bag 5 above the compacted materials is discharged. To avoid the entry of outside air into the envelope 5 during the compaction process.

5. Transfer inflation

As shown in fig. 6, when the compacted packing bag 5 is transferred from the compacting station 45 to the sealing station 47 by the automatic packing machine, air is easy to enter from the mouth of the packing bag 5, so that the transfer inflating device 64 is used for transferring and inflating the mouth of the packing bag 5 during the transfer of the packing bag 5 to the sealing station 47.

The sealing plate 641 and the air charging nozzle 642 are included, the sealing plate 641 is clamped and fixed on the rotary lifting platform 65 by a pressing arm, the air charging nozzle 642 penetrates through the middle of the sealing plate 641 and is fixed on the sealing plate 641, and the sealing plate 641 and the air charging nozzle 642 lift and rotate along with the rotary lifting platform 65. The bottom of the charging connector 642 is provided with a C air outlet 313, and the C air outlet 313 is communicated with the air pipe 11 group.

The main working principle is that at the compacting station 45, the rotary lifting platform 65 drives the inflating nozzle 642 to enter the packaging bag 5 from the opening of the packaging bag 5 through a downward pressing support arm, and the sealing plate 641 is covered on the opening of the packaging bag 5 and rotates around the turntable at the station 4 along with the packaging bag 5. In this process, the C gas outlet 313 extends into the package 5 to release the shielding gas. During the transfer of the packing bag 5 from the compacting station 45 to the sealing station 47, the protection gas inside the packing bag 5 is kept in an outward overflowing state from the opening of the packing bag 5 and the gap of the sealing plate 641, so that the external air is prevented from entering the packing bag 5 during the transfer.

6. Hot-pressed seal

After the packaging bag 5 is conveyed to the station 47 to be sealed, the packaging bag 5 is conveyed to a conveying line after being sealed by hot pressing, and the whole packaging work is completed.

Verifying the influence of normal package on the quality guarantee period of the sunflower seeds under the condition of nitrogen filling:

1. test products: 160g of sunflower seeds as raw materials;

2. sample environment: standing at normal temperature;

3. verifying the content: the influence of nitrogen filling and normal packaging of the sunflower seeds on the quality guarantee period in different areas (different climatic conditions);

4. test data: peroxide value g/100g, oxygen content value is: the percentage (%) of the gas in the whole package.

Table one: detection data of oxygen content in packaging bags before and after inflation in Hefei and Gansu regions

Table two: data for detecting oxygen content in packaging bags before and after inflation in Baotou and Harbin regions

Table three: oxygen content detection data in packaging bags before and after inflation in Chongqing and Changsha areas

And (3) detection results: according to the detection data of the table I, the table II and the table III, the following steps are obtained:

1. at the beginning, the oxygen content in the non-inflated packaging bag is far higher than the oxygen content in the inflated packaging bag;

2. as time goes by, the oxygen content in the unaerated package decreases and the oxygen content in the aerated package increases;

3. in different areas, the oxygen content difference between the inflatable packaging bags is small, and the oxygen content difference between the non-inflatable packaging bags is small;

4. in the packaging bag, the amount of peroxide is increased and the deterioration quality of the materials is increased along with the time.

In conclusion, when the inflating device and the inflating method are used for sealing, the oxygen content in the inflated packaging bag is far lower than that in the non-inflated packaging bag, and the oxygen content in the non-inflated packaging bag is greatly reduced along with the time, so that the oxygen reacts with the materials to generate peroxide, and the materials deteriorate. As can be seen from the detection data in the table I, the table II and the table III, the amount of the peroxide in the aerated packaging bag is about 40% of the amount of the peroxide in the non-aerated packaging bag at the same time under the same condition, so the quality guarantee period is prolonged by about 2.5 times, and the quality guarantee period is effectively prolonged.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. The utility model provides a because thing networked control aerating device, includes main gas pipe group (1) of aerifing, its characterized in that, main gas pipe group (1) of aerifing includes gas outlet (3) that many trachea (11) and every trachea (11) correspond, locates to set up in automatic packaging machine's different station (4) gas outlet (3) makes wrapping bag (5) in the way during station (4), gas outlet (3) release protective gas gets into reduce in wrapping bag (5) oxygen content in wrapping bag (5).

2. The internet of things control-based inflator device according to claim 1, wherein the gas outlets (3) comprise a first set of gas outlets (31), and the first set of gas outlets (31) release the protective gas from outside into the package (5).

3. The internet-of-things-based control inflation device according to claim 1, wherein the air outlets (3) comprise a second group of air outlets (32), the second group of air outlets (32) are arranged on a channel (625) of the material path, and protective gas released by the second group of air outlets (32) fills the material gap and follows the material into the packaging bag (5).

4. An inflation method, characterized by comprising the following inflation steps:

s1, primary inflation: the packaging bag (5) is opened at a bag opening station (43), an air outlet A (311) of the first group of air outlets (31) according to claim 2 is used for extending into the packaging bag (5) from the bag opening of the packaging bag (5), protective gas is filled in, and air in the packaging bag (5) is discharged;

s2, auxiliary inflation: at the filling station (44), the material gap is filled with protective gas released from the second set of gas outlets (32) according to claim 3 and follows the material into the packaging bag (5).

5. The inflation method of claim 4, comprising:

s3, supplementary inflation: at a compaction station (45), air outlets (312) B of the first group of air outlets (31) enter the packaging bags (5) along with the compaction device (63) to release protective gas, and air between the materials in the packaging bags (5) and the bag mouths is discharged;

s4, transferring and inflating: at transfer station (46), wrapping bag (5) from compaction station (45) shift to seal station (47) in-process, C gas outlet (313) of first group gas outlet (31) get into release protective gas in wrapping bag (5), discharge air between material and the sack in wrapping bag (5).

6. An automatic packaging machine for inflating said packages (5) using an internet of things based controlled inflation device according to claims 1-3 or an inflation method according to claims 4-5.

7. The automatic packaging machine according to claim 6, comprising a bag opening device (61), wherein a pair of flaring mechanisms (611) which can extend into the packaging bag (5) are arranged on the bag opening device (61), and the bottom end of the flaring mechanism (611) is used for fixing the A air outlet (311), and the A air outlet (311) enters the bottom of the packaging bag (5) along with the flaring mechanisms (611) to release the shielding gas.

8. The automatic packaging machine according to claim 6, characterized by comprising a compacting device (63), wherein the compacting device (63) comprises a compacting plate (631) and a compacting block (632), the compacting block (632) traverses the center of the compacting plate (631) along the thickness direction, a hollow pipe (633) is arranged in the middle of the compacting block (632), the hollow pipe (633) is communicated with the air pipe (11), the B air outlet (312) is arranged at the bottom of the hollow pipe (633), the compacting block (632) enters the packaging bag (5) from the bag opening of the packaging bag (5), and the B air outlet (312) releases shielding gas while the material is pressed from top to bottom.

9. The automatic packaging machine according to claim 6, characterized by comprising a transfer inflating device (64), wherein the transfer inflating device (64) comprises a sealing plate (641) and an inflating nozzle (642), the inflating nozzle (642) penetrates through the sealing plate (641) and is fixed on the sealing plate (641), the inflating nozzle (642) is communicated with the air pipe (11), the C air outlet (313) is arranged at the bottom of the inflating nozzle (642), the inflating nozzle (642) enters the packaging bag (5) from the opening of the packaging bag (5), and the C air outlet (313) releases protective gas while the materials are transferred.

10. The automatic packaging machine according to any one of claims 6 to 9, comprising a filling device (62), wherein the filling device (62) comprises a bin (621), a combination weigher device (622), a transition hopper group (623) and a filling hopper (624), and the materials sequentially pass through the bin (621), the combination weigher device (622), the transition hopper group (623) and the filling hopper (624) and then enter the packaging bag (5), wherein the second group of gas outlets (32) are respectively arranged on a channel (625) through which the materials in the bin (621), the combination weigher device (622), the transition hopper group (623) and the filling hopper (624) flow, and the protective gas released from the second group of gas outlets (32) fills a gap between the materials flowing through the channel (625) and then enters the packaging bag (5) along with the materials.