CN115711709A - Food package sealing, detecting and boxing equipment filled with nitrogen and using method thereof - Google Patents

Abstract

The invention discloses a nitrogen-filled food package sealing, detecting and boxing device and a using method thereof. The invention can replace manual work to carry out tightness detection on the food packaging bag filled with nitrogen, reduces the labor intensity of workers, improves the tightness detection efficiency, can recycle food with poor tightness, improves the yield, and avoids unnecessary waste; the boxing and sealing work can be completed immediately after the sealing performance detection, the food bags do not need to be transported and packaged manually, the integral automation degree is high, the actual production and processing speed is high, and the practicability is high; the application range is wide, and the method can be widely applied to the fields of various air tightness detection and sealed packing.

Description

Food package sealing, detecting and boxing equipment filled with nitrogen and using method thereof

Technical Field

The invention belongs to the field of food industrial processing, and particularly relates to nitrogen-filled food package sealing, detecting and boxing equipment and a using method thereof.

Background

In the field of food processing nowadays, particularly for some foods which are short in shelf life and easy to oxidize and rot, an inert gas, namely nitrogen, is often required to be filled in plastic packages for quality preservation, such as common potato chips in the market. For such food products with short shelf life and high spoilage property, which need to be filled with nitrogen gas for quality guarantee, the sealing property of the plastic packaging bag is very important. After actual food package, generally all will detect the leakproofness of wrapping bag, generally detect by the staff manual work that the mill detected the leakproofness among the prior art, transport again after detecting to the vanning workshop and seal the vanning, whole process not only increases operating personnel's intensity of labour, and overall efficiency is low moreover, and production speed is slow. Therefore, the design of the special intelligent packaging equipment which can replace manual work to detect the sealing performance of the food package and carry out boxing and sealing on the food package after detection is in line with the actual requirement.

Aiming at the problems, the nitrogen-filled food packaging sealing, detecting and boxing equipment and the using method thereof are designed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide food packaging sealing detection boxing equipment filled with nitrogen and a using method thereof, and solves the problems that in the prior art, the sealing performance of food packaging bags is manually detected, and the food packaging bags are transported to a boxing workshop for sealing boxing after detection, so that the labor intensity of operators is increased in the whole process, the whole efficiency is low, and the production speed is low.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a sealed detection vanning equipment of food package that nitrogen gas was filled, includes first transmission line, second transmission line and third transmission line, one side of first transmission line is arranged in to the second transmission line, the one end of second transmission line is arranged in to the third transmission line, first transmission line is used for conveying the food package bag of filling nitrogen gas, second transmission line and third transmission line are used for conveying the carton, the food package bag passes sealed detection module, the top of first transmission line and second transmission line is equipped with the wrapping bag and transports the module, the top of third transmission line is equipped with folding module of carton and seals the module, the carton seals the module and arranges one side of the folding module of carton in. And one end of the first conveying line is provided with a recovery tank.

The sealing detection module comprises a bottom plate, a first through groove used for placing a first transmission line ground foot is formed in the bottom plate, vertical plates symmetrically arranged are arranged on the bottom plate, a first supporting plate is fixedly arranged at the upper end of each vertical plate, and a first air cylinder is arranged on each first supporting plate.

Be equipped with the second on the riser and lead to the groove, the side of riser is equipped with the second backup pad, the upper end of second backup pad is equipped with the second cylinder, the output of second cylinder runs through the second and leads to the groove, the output end of second cylinder is fixed and is equipped with splint, the output of first cylinder runs through first backup pad to with clamp plate fixed connection, be equipped with the first guide arm of vertical setting on the clamp plate, first guide arm runs through first backup pad to with first backup pad sliding connection.

The wrapping bag transportation module includes the board of strideing across of vertical setting, the one end of strideing across the board is equipped with first connecting block and the second connecting block that the symmetry set up, the second connecting block is arranged in under the first connecting block.

The lower end of the first connecting block is provided with a first screw rod, the first screw rod penetrates through the second connecting block and is rotatably connected with the first connecting block and the second connecting block, the first screw rod penetrates through the lifting block and is in threaded fit with the lifting block, a first bevel gear is fixedly arranged at the lower end of the first screw rod, a first motor is arranged at the side end of the second connecting block, the output end of the first motor penetrates through the second connecting block and is fixedly connected with a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

One end of each lifting block is provided with a second motor, a second guide rod and a second screw rod which are transversely arranged are arranged between the lifting blocks, the second guide rod is fixedly connected with the lifting blocks, the second screw rods are rotatably connected with the lifting blocks, and the output ends of the second motors are communicated with the lifting blocks and are fixedly connected with the second screw rods.

The carton seals module includes support piece, last stand and the spliced pole of being equipped with of support piece, the fixed third backup pad that is equipped with in upper end of stand, the upper end of third backup pad is equipped with the fourth cylinder, the spliced pole is with the connecting plate fixed connection of vertical setting, be equipped with the third on the connecting plate and lead to the groove, one the side of connecting plate is equipped with the sixth motor, the fixed fourth backup pad that is equipped with in upper end of connecting plate, the fixed support column that is equipped with in fourth backup pad, the fixed fifth backup pad that is equipped with in upper end of support column, the upper end of fifth backup pad is equipped with the fifth cylinder, the output of fifth cylinder runs through the fifth backup pad to with U type pole fixed connection.

And a connecting piece in sliding connection is arranged in the third through groove, one end of the connecting piece is fixedly connected with the U-shaped rod, and the other end of the connecting piece is fixedly connected with the knife switch. The U-shaped rod penetrates through the fourth supporting plate, a driving wheel and a driven wheel which are connected in a rotating mode are arranged between the connecting plates, a bonding adhesive tape is arranged on the driving wheel in a surrounding mode, one end of the bonding adhesive tape is pulled out of the driving wheel, and is attached to the side end of the driven wheel.

Furthermore, a sensor arranged right below the sealing detection module is arranged on the first transmission line.

Furthermore, the second guide rod and the second lead screw penetrate through the moving block, the second guide rod is connected with the moving block in a sliding mode, the second lead screw is in threaded fit with the moving block, a transfer block is fixedly arranged at the lower end of the moving block, third air cylinders are arranged at two ends of the transfer block, and the output end of each third air cylinder penetrates through the transfer block and is fixedly connected with the fastening plate.

Furthermore, the carton folding module comprises a base, a third lead screw and a lead screw protective shell which are vertically arranged are arranged on the base, the third lead screw is arranged in the lead screw protective shell and is rotationally connected with the base, and a limiting block is fixedly arranged at the upper end of the third lead screw.

Furthermore, the one end of base is equipped with the third motor, the output intercommunication base of third motor to be connected with third lead screw transmission, the third lead screw runs through the horizontal pole to with horizontal pole screw-thread fit, horizontal pole and elevating platform fixed connection, the lower extreme of elevating platform is fixed and is equipped with first connecting rod and second connecting rod, the lower extreme and the first spout fixed connection of first connecting rod, the lower extreme and the second spout fixed connection of second connecting rod, second spout upper end is arranged in to first spout, first spout and second spout mutually perpendicular.

Further, the one end of first spout is equipped with the fourth motor, the one end of second spout is equipped with the fifth motor, be equipped with the fourth lead screw that rotates the connection in the first spout, be equipped with the fifth lead screw that rotates the connection in the second spout, fourth lead screw and fifth lead screw are double lead screw, the fourth lead screw runs through first push pedal to with first push pedal screw-thread fit, the fifth lead screw runs through the second push pedal to with second push pedal screw-thread fit.

A use method of food package sealing, detecting and boxing equipment filled with nitrogen comprises the following steps:

s1, starting a first conveying line to enable a packaging bag to be placed under a pressing plate;

s2, clamping the food packaging bag by the clamping plate, pressing the food packaging bag by the pressing plate properly, and detecting the sealing property of the food packaging bag;

s3, controlling the transfer block to transfer the food packaging bags with good sealing performance from the first conveying line into a paper box in the second conveying line;

s4, controlling the carton to move to the position right below the carton folding module;

s5, controlling the first push plate and the second push plate to fold the opening of the carton;

s6, controlling the carton to move to the position right below the carton sealing module;

and S7, sealing the upper end of the carton by the adhesive tape.

The invention has the beneficial effects that:

1. the food packaging sealing detection boxing equipment filled with nitrogen can replace manual work to carry out sealing detection on the food packaging bag filled with nitrogen, reduce the labor intensity of workers, improve the sealing detection efficiency, recycle food with poor sealing performance, improve the yield and avoid unnecessary waste;

2. the food packaging, sealing, detecting and boxing equipment filled with nitrogen can complete boxing and sealing work immediately after the sealing performance is detected, does not need manual operation for transferring and packing food bags, and has the advantages of high overall automation degree, high actual production and processing speed and strong practicability;

3. the food packaging sealing detection boxing equipment filled with nitrogen has wide application range and can be widely applied to various air tightness detection fields and sealing boxing fields.

Drawings

In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic overall view of another embodiment of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 2 at A;

FIG. 4 is a schematic structural diagram of a seal detection module according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a package transfer module according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view of FIG. 5 at B;

FIG. 7 is a schematic view of a carton folding module configuration according to an embodiment of the present invention;

FIG. 8 is a bottom view of a carton folding module of an embodiment of the present invention;

fig. 9 is a schematic view of a carton closure module according to an embodiment of the invention;

fig. 10 is a schematic view of the internal structure of a carton closure module according to an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

As shown in fig. 1 and 2, the nitrogen-filled food package sealing, inspecting and boxing apparatus includes a first transfer line 1, a second transfer line 2 and a third transfer line 3, wherein the second transfer line 2 is disposed at one side of the first transfer line 1, and the third transfer line 3 is disposed at one end of the second transfer line 2. The first transfer line 1 is used to transfer nitrogen-filled food packing bags 4, and the second transfer line 2 and the third transfer line 3 are used to transfer cartons 5. Food package bag 4 passes sealed detection module 6, the top of first transmission line 1 and second transmission line 2 is equipped with wrapping bag transportation module 7, the top of third transmission line 3 is equipped with the folding module of carton 8 and carton and seals module 9, carton seals module 9 and arranges one side of the folding module of carton 8 in. One end of the first transmission line 1 is provided with a recovery tank 10.

As shown in fig. 3, a sensor 11 is disposed on the first conveying line 1 and directly below the sealing detection module 6, and the sensor 11 can detect gas discharged from the food packaging bag 4 with poor sealing performance when the sealing detection module 6 detects the gas.

As shown in fig. 4, the sealing detection module 6 includes a bottom plate 61, a first through groove 62 for placing the ground foot of the first transmission line 1 is formed in the bottom plate 61, a vertical plate 63 is symmetrically arranged on the bottom plate 61, a first support plate 66 is fixedly arranged at the upper end of the vertical plate 63, and a first cylinder 68 is arranged on the first support plate 66. The improved structure is characterized in that a second through groove 65 is formed in the vertical plate 63, a second supporting plate 64 is arranged at the side end of the vertical plate 63, a second air cylinder 610 is arranged at the upper end of the second supporting plate 64, the output end of the second air cylinder 610 penetrates through the second through groove 65, and a clamping plate 611 is fixedly arranged at the output end of the second air cylinder 610. The output end of the first air cylinder 68 penetrates through the first supporting plate 66 and is fixedly connected with the pressing plate 69, a first guide rod 67 which is vertically arranged is arranged on the pressing plate 69, and the first guide rod 67 penetrates through the first supporting plate 66 and is in sliding connection with the first supporting plate 66.

As shown in fig. 5 and 6, the package bag transferring module 7 includes a vertically arranged crossing plate 71, wherein one end of the crossing plate 71 is provided with a first connecting block 72 and a second connecting block 73 which are symmetrically arranged, and the second connecting block 73 is arranged right below the first connecting block 72. The lower end of the first connecting block 72 is provided with a first screw rod 74, and the first screw rod 74 penetrates through the second connecting block 73 and is rotatably connected with the first connecting block 72 and the second connecting block 73. The first lead screw 74 penetrates through the lifting block 75 and is in threaded fit with the lifting block 75. The lower end of the first screw rod 74 is fixedly provided with a first bevel gear 77, the side end of the second connecting block 73 is provided with a first motor 76, the output end of the first motor 76 penetrates through the second connecting block 73 and is fixedly connected with a second bevel gear 78, and the first bevel gear 77 is meshed with the second bevel gear 78. One end of one of the lifting blocks 75 is provided with a second motor 79, a second guide rod 712 and a second screw 713 which are transversely arranged are arranged between the lifting blocks 75, the second guide rod 712 is fixedly connected with the lifting block 75, the second screw 713 is rotatably connected with the lifting block 75, and the output end of the second motor 79 is communicated with the lifting block 75 and is fixedly connected with the second screw 713. The second guide rod 712 and the second lead screw 713 penetrate through the moving block 711, the second guide rod 712 is slidably connected with the moving block 711, and the second lead screw 713 is in threaded fit with the moving block 711. The lower end of the moving block 711 is fixedly provided with a transfer block 714, two ends of the transfer block 714 are provided with third cylinders 715, and the output ends of the third cylinders 715 penetrate through the transfer block 714 and are fixedly connected with a fastening plate 716.

As shown in fig. 7 and 8, the carton folding module 8 includes a base 81, a third lead screw 84 and a lead screw protection shell 83 which are vertically arranged are disposed on the base 81, the third lead screw 84 is disposed in the lead screw protection shell 83 and is rotatably connected to the base 81, and a limiting block 85 is fixedly disposed at an upper end of the third lead screw 84. One end of the base 81 is provided with a third motor 82, and an output end of the third motor 82 is communicated with the base 81 and is in transmission connection with a third screw 84. The third screw 84 penetrates through the cross rod 86 and is in threaded fit with the cross rod 86. The cross bar 86 is fixedly connected with the lifting table 87, a first connecting rod 810 and a second connecting rod 811 are fixedly arranged at the lower end of the lifting table 87, the lower end of the first connecting rod 810 is fixedly connected with a first sliding groove 88, the lower end of the second connecting rod 811 is fixedly connected with a second sliding groove 89, the upper end of the second sliding groove 89 is arranged in the first sliding groove 88, and the first sliding groove 88 and the second sliding groove 89 are perpendicular to each other. One end of the first sliding chute 88 is provided with a fourth motor 812, and one end of the second sliding chute 89 is provided with a fifth motor 815. A fourth screw 817 is arranged in the first sliding groove 88 and is connected in a rotating mode, a fifth screw 816 is arranged in the second sliding groove 89 and is connected in a rotating mode, the fourth screw 817 and the fifth screw 816 are double-head screws, the fourth screw 817 penetrates through the first push plate 813 and is in threaded fit with the first push plate 813, and the fifth screw 816 penetrates through the second push plate 814 and is in threaded fit with the second push plate 814.

As shown in fig. 9 and 10, the carton sealing module 9 includes a support member 91, a column 92 and a connecting column 93 are disposed on the support member 91, a third support plate 95 is fixedly disposed at an upper end of the column 92, and a fourth cylinder 96 is disposed at an upper end of the third support plate 95. The connecting column 93 is fixedly connected with a vertically arranged connecting plate 94. The connecting plates 94 are provided with third through grooves 97, and a sixth motor 98 is arranged at the side end of one of the connecting plates 94. The fixed fourth backup pad 99 that is equipped with in upper end of connecting plate 94, the fixed support column 911 that is equipped with in fourth backup pad 99, the fixed fifth backup pad 912 that is equipped with in upper end of support column 911, the upper end of fifth backup pad 912 is equipped with fifth cylinder 913, the output of fifth cylinder 913 runs through fifth backup pad 912 to with U type pole 910 fixed connection. A connecting piece 917 slidably connected is disposed in the third through groove 97, one end of the connecting piece 917 is fixedly connected to the U-shaped rod 910, and the other end is fixedly connected to the knife 918. The U-shaped bar 910 penetrates the fourth support plate 99. A driving wheel 914 and a driven wheel 915 which are connected in a rotating manner are arranged between the connecting plates 94, an adhesive tape 916 is wound on the driving wheel 914, and one end of the adhesive tape 916 is pulled out of the driving wheel 914 and is attached to the side end of the driven wheel 915.

During the use, start first transfer line 1 earlier for food package 4 is to sealed detection module 6, and when food package 4 placed in under clamp plate 69, closed first transfer line 1, then the output of control second cylinder 610 stretches out, makes splint 611 centre gripping food package 4. Then, the output end of the first air cylinder 68 is controlled to extend out, so that the pressure plate 69 moves downwards until the pressure plate 69 properly presses the food packaging bag 4, if the food packaging bag 4 is good in air tightness, no air escapes after pressing, and the sensor 11 cannot receive a signal; if the food packaging bag 4 has poor airtightness, gas escapes after the pressing, and the sensor 11 detects the nitrogen gas escaping from the food packaging bag 4, marks the food packaging bag 4, and transfers the same from the first transfer line 1 into the recovery tank 10 in a subsequent operation. After the detection is completed, the output ends of the first cylinder 68 and the second cylinder 610 are controlled to contract to the initial position, and then the first transfer line 1 is started again.

The food packaging bag 4 with good sealing performance is detected to move to the position right below the second guide rod 712 and the second screw 713, then the second motor 79 is started, the second screw 713 drives the transfer block 714 to move transversely, when the transfer block 714 moves to the position right above the food packaging bag 4, the second motor 79 is closed, the first motor 76 is started again, the transfer block 714 moves downwards until the food packaging bag 4 is placed at the two ends of the fastening plate 716, then the first motor 76 is closed, the output end of the third air cylinder 715 is controlled to stretch out, and the fastening plate 716 is used for fastening and clamping the food packaging bag 4. The first motor 76 is then reversed so that the transfer block 714 returns to the initial position, the first motor 76 is then turned off, and the second motor 79 is reversed so that the transfer block 714 moves directly above the second conveyor line 2, and the second motor 79 is then turned off. The second conveyor line 2 is then started until the cartons 5 move directly under the transfer block 714, stopping the second conveyor line 2. The first motor 76 is then reversed again to move the transfer block 714 downward, and when the transfer block 714 engages the upper end of the carton 5, the first motor 76 is turned off and the output end of the third cylinder 715 is controlled to retract, so that the food package 4 falls into the carton 5, and then the first motor 76 is reversed again to return the transfer block 714 to the original height. Then, the above-described operation is repeated, so that a predetermined number of food packing bags 4 are stacked in one carton 5, the second conveyor 2 and the third conveyor 3 are started, so that the carton 5 containing the food packing bags 4 is moved to a position right under the carton folding module 8, and then the third conveyor 3 is stopped.

Then, the third motor 82 is started, so that the third screw 84 drives the cross bar 86 and the lifting platform 87 to move downwards, and the third motor 82 is closed when the first push plate 813 and the second push plate 814 are placed at the side end of the carton 5. Then, the fifth motor 815 is started first, so that the second push plate 814 folds the two shorter openings of the carton 5, and after the two shorter openings are folded, the fifth motor 815 is reversed, so that the second push plate 814 returns to the initial position; the fourth motor 812 is then activated to fold the two longer openings of the first pusher 813 carton 5 in half and the fourth motor 812 is reversed after folding to return the first pusher 81 to the initial position. The third motor 82 is again reversed so that the cross bar 86 and the lifting platform 87 return to the initial height, and the third conveyor line 3 is again activated to convey the folded cartons 5 directly beneath the carton closure modules 9.

In the process that the carton 5 is conveyed to the carton sealing module 9, the output end of the fourth cylinder 96 is controlled to extend out, the side end of the carton 5 is firstly attached to the movable end of the adhesive tape 916 after being conveyed to the lower part of the carton sealing module 9, and then the carton is tightly adhered through the separation of the output end of the fourth cylinder 96. Then, the output end of the fourth air cylinder 96 is controlled to contract, so that the carton 5 continues to be conveyed along the third conveying line 3, and the sixth motor 98 is simultaneously started, so that the adhesive tape 916 performs adhesive sealing on the upper end opening of the carton 5, and after the carton 5 moves past the lower end of the knife switch 918, the output end of the fifth air cylinder 913 is controlled to extend out, so that the knife switch 918 cuts the adhesive tape 916, and the cut adhesive tape 916 is adhered to the other end of the carton 5. Finally the packed and sealed cartons 5 are transported away by the third conveyor line 3.

In summary, the use method of the food package sealing, detecting and boxing equipment filled with nitrogen comprises the following steps:

s1, starting a first conveying line 1 to enable a packaging bag 4 to be placed under a pressure plate 69;

s2, clamping the food packaging bag 4 by the clamping plate 611, and properly pressing the food packaging bag 4 by the pressing plate 69 to detect the sealing property of the food packaging bag 4;

s3, the transfer control block 714 transfers the food packaging bags 4 with good sealing performance from the first conveying line 1 to the cartons 5 in the second conveying line 2;

s4, controlling the carton 5 to move to a position right below the carton folding module 8;

s5, controlling the first push plate 813 and the second push plate 814 to fold the opening of the carton 5;

s6, controlling the carton 5 to move to a position right below the carton sealing module 9;

and S7, sealing the upper end of the carton 5 by the adhesive tape 916.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (7)

1. The nitrogen-filled food packaging sealing detection boxing equipment comprises a first transmission line (1), a second transmission line (2) and a third transmission line (3), and is characterized in that one side of the first transmission line (1) is arranged in the second transmission line (2), one end of the second transmission line (2) is arranged in the third transmission line (3), the first transmission line (1) is used for transmitting food packaging bags (4) filled with nitrogen, the second transmission line (2) and the third transmission line (3) are used for transmitting cartons (5), the food packaging bags (4) pass through a sealing detection module (6), a packaging bag transfer module (7) is arranged above the first transmission line (1) and the second transmission line (2), a carton folding module (8) and a carton sealing module (9) are arranged above the third transmission line (3), the carton sealing module (9) is arranged on one side of the carton folding module (8), and a recovery groove (10) is arranged at one end of the first transmission line (1);

the sealing detection module (6) comprises a bottom plate (61), a first through groove (62) for placing the ground feet of the first conveying line (1) is formed in the bottom plate (61), vertical plates (63) are symmetrically arranged on the bottom plate (61), a first supporting plate (66) is fixedly arranged at the upper end of each vertical plate (63), and a first air cylinder (68) is arranged on each first supporting plate (66);

a second through groove (65) is formed in the vertical plate (63), a second supporting plate (64) is arranged at the side end of the vertical plate (63), a second air cylinder (610) is arranged at the upper end of the second supporting plate (64), the output end of the second air cylinder (610) penetrates through the second through groove (65), a clamping plate (611) is fixedly arranged at the output end of the second air cylinder (610), the output end of the first air cylinder (68) penetrates through the first supporting plate (66) and is fixedly connected with a pressing plate (69), a vertically arranged first guide rod (67) is arranged on the pressing plate (69), and the first guide rod (67) penetrates through the first supporting plate (66) and is in sliding connection with the first supporting plate (66);

the packaging bag transferring module (7) comprises a vertically arranged crossing plate (71), a first connecting block (72) and a second connecting block (73) which are symmetrically arranged are arranged at one end of the crossing plate (71), and the second connecting block (73) is arranged right below the first connecting block (72);

a first screw rod (74) is arranged at the lower end of the first connecting block (72), the first screw rod (74) penetrates through the second connecting block (73) and is rotatably connected with the first connecting block (72) and the second connecting block (73), the first screw rod (74) penetrates through the lifting block (75) and is in threaded fit with the lifting block (75), a first bevel gear (77) is fixedly arranged at the lower end of the first screw rod (74), a first motor (76) is arranged at the side end of the second connecting block (73), the output end of the first motor (76) penetrates through the second connecting block (73) and is fixedly connected with the second bevel gear (78), and the first bevel gear (77) is meshed with the second bevel gear (78);

one end of one lifting block (75) is provided with a second motor (79), a second guide rod (712) and a second screw rod (713) which are transversely arranged are arranged between the lifting blocks (75), the second guide rod (712) is fixedly connected with the lifting block (75), the second screw rod (713) is rotatably connected with the lifting block (75), and the output end of the second motor (79) is communicated with the lifting block (75) and is fixedly connected with the second screw rod (713);

the carton sealing module (9) comprises a supporting piece (91), wherein an upright post (92) and a connecting post (93) are arranged on the supporting piece (91), a third supporting plate (95) is fixedly arranged at the upper end of the upright post (92), a fourth air cylinder (96) is arranged at the upper end of the third supporting plate (95), the connecting post (93) is fixedly connected with a vertically arranged connecting plate (94), a third through groove (97) is arranged on the connecting plate (94), a sixth motor (98) is arranged at the side end of one connecting plate (94), a fourth supporting plate (99) is fixedly arranged at the upper end of the connecting plate (94), a supporting column (911) is fixedly arranged on the fourth supporting plate (99), a fifth supporting plate (912) is fixedly arranged at the upper end of the supporting column (911), a fifth air cylinder (913) is arranged at the upper end of the fifth supporting plate (912), and the output end of the fifth air cylinder (913) penetrates through the fifth supporting plate (912) and is fixedly connected with a U-shaped rod (910);

a connecting piece (917) in sliding connection is arranged in the third through groove (97), one end of the connecting piece (917) is fixedly connected with the U-shaped rod (910), and the other end of the connecting piece is fixedly connected with the knife switch (918);

the U-shaped rod (910) penetrates through the fourth supporting plate (99), a driving wheel (914) and a driven wheel (915) which are connected in a rotating mode are arranged between the connecting plates (94), an adhesive tape (916) is arranged on the driving wheel (914) in a surrounding mode, one end of the adhesive tape (916) is pulled out of the driving wheel (914) and attached to the side end of the driven wheel (915).

2. The nitrogen-filled food package sealing detection boxing apparatus as claimed in claim 1, wherein the first conveying line (1) is provided with a sensor (11) disposed right below the sealing detection module (6).

3. The nitrogen-filled food package sealing detection boxing apparatus as claimed in claim 1, wherein the second guide rod (712) and the second lead screw (713) penetrate through the moving block (711), the second guide rod (712) is slidably connected with the moving block (711), the second lead screw (713) is in threaded fit with the moving block (711), the transfer block (714) is fixedly arranged at the lower end of the moving block (711), third air cylinders (715) are arranged at two ends of the transfer block (714), and output ends of the third air cylinders (715) penetrate through the transfer block (714) and are fixedly connected with the fastening plate (716).

4. The nitrogen-filled food package sealing detection boxing apparatus as claimed in claim 1, wherein the carton folding module (8) comprises a base (81), a third lead screw (84) and a lead screw protective shell (83) are vertically arranged on the base (81), the third lead screw (84) is arranged in the lead screw protective shell (83) and is rotatably connected with the base (81), and a limit block (85) is fixedly arranged at the upper end of the third lead screw (84).

5. The nitrogen-filled food packaging sealing detection boxing apparatus according to claim 4, wherein a third motor (82) is arranged at one end of the base (81), an output end of the third motor (82) is communicated with the base (81) and is in transmission connection with a third screw rod (84), the third screw rod (84) penetrates through the cross rod (86) and is in threaded fit with the cross rod (86), the cross rod (86) is fixedly connected with the lifting platform (87), a first connecting rod (810) and a second connecting rod (811) are fixedly arranged at the lower end of the lifting platform (87), the lower end of the first connecting rod (810) is fixedly connected with the first sliding groove (88), the lower end of the second connecting rod (811) is fixedly connected with the second sliding groove (89), the first sliding groove (88) is arranged at the upper end of the second sliding groove (89), and the first sliding groove (88) and the second sliding groove (89) are perpendicular to each other.

6. The nitrogen-filled food packaging, sealing, detecting and boxing apparatus as claimed in claim 5, wherein a fourth motor (812) is arranged at one end of the first sliding chute (88), a fifth motor (815) is arranged at one end of the second sliding chute (89), a fourth screw (817) connected in a rotating manner is arranged in the first sliding chute (88), a fifth screw (816) connected in a rotating manner is arranged in the second sliding chute (89), the fourth screw (817) and the fifth screw (816) are both double-headed screws, the fourth screw (817) penetrates through the first push plate (813) and is in threaded fit with the first push plate (813), and the fifth screw (816) penetrates through the second push plate (814) and is in threaded fit with the second push plate (814).

7. Use of a nitrogen filled food package seal detection boxing apparatus in accordance with any one of claims 1 to 6, comprising the steps of:

s1, starting a first conveying line (1) to enable a packaging bag (4) to be placed under a pressure plate (69);

s2, clamping the food packaging bag (4) by the clamping plate (611), properly pressing the food packaging bag (4) by the pressing plate (69), and detecting the sealing property of the food packaging bag (4);

s3, controlling the transfer block (714) to transfer the food packaging bags (4) with good sealing performance into the cartons (5) in the second conveying line (2) from the first conveying line (1);

s4, controlling the carton (5) to move to the position right below the carton folding module (8);

s5, controlling the first push plate (813) and the second push plate (814) to fold the opening of the carton (5);

s6, controlling the carton (5) to move to the position right below the carton sealing module (9);

s7, sealing the upper end of the carton (5) by the adhesive tape (916).

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