Food fresh-keeping packaging process

Abstract

The invention relates to the technical field of food preparation, and particularly discloses a food fresh-keeping and packaging process which comprises the following steps: cooling baked biscuits, performing operations such as automatic opening, nitrogen charging and packaging on packaging bags in advance through all mechanisms of packaging equipment, quickly and synchronously bagging and packaging the cooled biscuits, and packaging the biscuits. And the biscuit packaging work can be quickly realized. The packaging bag is used for automatic bag opening and nitrogen filling, dried and cooled biscuits can be directly packaged in the bag after entering the discharging disc from the upstream station, the packaging efficiency is improved, the biscuit exposure time is shortened, the freshness of products can be effectively improved, and the delivery quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of food preparation, in particular to a food fresh-keeping packaging process. Background Art

[0002] Biscuits are foods made from cereal flour as the main raw material, with added sugar, oil and other raw materials, and made through processes such as powder mixing, molding and baking. Types include sandwich biscuits, soda crackers or cookies. Among them, pillow-type biscuits need to be nitrogen-filled and vacuum-packed during the packaging process to extend the shelf life of the biscuits.

[0003] Patent No. CN219635611 U discloses a food vacuum packaging device, including a vacuum heat sealing box, the top of which is fixedly equipped with a weighing and collecting box, the bottom of which is provided with a movable groove, the inner wall of which is slidably connected with a bag-supporting slider, the bottom of which is fixedly equipped with a bag-supporting rod, the end of which is fixedly provided with a linkage rod, and the inner wall of the weighing and collecting box is rotatably connected with a material accumulation prevention gear and a material guide tube. Through the provided weighing shell, pressure spring, and retracting and releasing rod structure, during the operation of the vacuum packaging device, the user can weigh the weight of the food through the cooperation of the pressure spring and the pressure sensor, so that the hydraulic rod and the air pump cooperate to tilt the weighing shell, thereby achieving the effect of automatically weighing the weight of the food to perform the packaging operation.

[0004] In the prior art, the weighing equipment can be set up to realize the automatic weighing of food for packaging. However, it is found in actual use that food is weighed in groups, that is, it is also packaged in groups during the packaging process. The quantity is large in the production process. A single weighing and then packaging will cause excessive accumulation of subsequent biscuits, resulting in slow packaging efficiency and affecting the overall production. At the same time, the bag opening and packaging equipment used on the market is generally realized by components such as a cylinder and a negative pressure suction cup. There are some disadvantages when the cylinder is used, that is, the movement speed of the cylinder is affected by the load of the air pressure, and it is difficult to achieve high-speed operation, resulting in low production efficiency. The positioning accuracy of the cylinder is low, and the sealing performance of the packaging needs to be controlled during packaging, resulting in the cylinder being unable to guarantee the sealing quality. At the same time, the adsorption force of the negative pressure suction cup is affected by the vacuum degree and the contact surface, and the adsorption effect on uneven materials is poor. In food packaging, the food bag may cause wrinkles at the bag mouth or bag body during transportation and clamping, thereby reducing the adsorption strength of the negative pressure suction cup. Summary of the invention

[0005] The purpose of the present invention is to provide a food preservation packaging process to solve the following technical problems:

[0006] (1) How to reduce the nitrogen filling and packaging time after biscuits are dried and cooled to improve the freshness of biscuits.

[0007] (2) How to achieve fully automated fresh-keeping packaging during the biscuit preparation process.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A food preservation packaging process comprises the following steps:

[0010] S1, after the biscuits are baked, the baked biscuits are sealed and cooled to below 40 degrees;

[0011] S2, before the operation starts, the nitrogen filling equipment is connected to the packaging equipment, and the parameters of the nitrogen filling equipment are adjusted. After the parameter adjustment is completed, the packaging equipment is used to perform a nitrogen pre-filling operation on the opening of the biscuit packaging bag;

[0012] S3, after the cooled biscuits fall into the feeding tray, the packaging equipment is used to quickly drive the biscuits into bags and package them, and then they are uniformly transported to the packaging area for overall packaging, and finally transported and sold.

[0013] Furthermore, the packaging equipment includes a workbench and further includes:

[0014] A feeding mechanism, arranged on a workbench, is used for feeding packaging bags;

[0015] A transfer mechanism, arranged at the end of the feeding mechanism, for transferring packaging bags;

[0016] A material transport mechanism, arranged on a workbench, for transporting packaging bags;

[0017] A packaging mechanism, arranged on a workbench, is used for packaging biscuits;

[0018] A nitrogen filling mechanism, arranged in the packaging mechanism, is used for nitrogen filling during packaging;

[0019] The packaging mechanism includes a packaging table; the packaging table is rotatably arranged on a workbench; teeth are fixedly connected to the top of the packaging table; the teeth are arranged in multiple groups; clamping arms are fixedly connected to the side walls of the packaging table; the clamping arms are arranged in multiple groups; a connecting column is rotatably connected to the middle of the packaging table; the end of the connecting column away from the packaging table is fixedly connected to a fixed disk; a feed tray is fixedly connected to the top of the fixed disk; a feed hopper is fixedly connected to the bottom of the feed tray; the feed hopper is arranged through the feed tray and the fixed disk.

[0020] Furthermore, a U-shaped block is fixedly connected to the bottom of the fixed plate; a two-way screw is rotatably connected to the side wall of the U-shaped block; a movable plate is threadedly connected to the two-way screw; two groups of movable plates are provided; one end of the movable plate away from the two-way screw is fixedly connected to a suction cup; the U-shaped block is arranged above the clamping arm; the side wall of the U-shaped block is rotatably connected to gear one; the output end of gear one is fixedly connected to the input end of the two-way screw; the gear one is meshingly connected with the teeth; a lifting warehouse is fixedly connected to the bottom of the fixed plate; a lifting screw is rotatably connected inside the lifting warehouse; a lifting plate is threadedly connected to the lifting screw; a top column is fixedly connected to the bottom of the lifting plate; the top column is arranged above the clamping arm; the bottom of the lifting warehouse is rotatably connected to gear two; the output end of gear two is fixedly connected to the input end of the lifting screw; the gear two is meshingly connected with the teeth.

[0021] Furthermore, the feeding mechanism includes a feeding base and a silo; the feeding base and the silo are fixedly connected to the workbench; the silo is arranged higher than the feeding base; a cylinder 1 is fixedly connected to the feeding base; the end of the cylinder 1 away from the feeding base is fixedly connected to a top plate; a notch is provided in the middle of the silo; the top plate is arranged through the notch; the side walls on both sides of the silo are fixedly connected to a propulsion bin; a propulsion screw is rotatably connected in the propulsion bin; a connecting plate is threadedly connected to the propulsion screw; a rubber block is fixedly connected in the middle of the connecting plate; a packaging bag body is arranged in the silo; the rubber block is arranged above the packaging bag body; the top plate is arranged at the bottom of the packaging bag body; the side walls of the propulsion bin are fixedly connected to a servo motor; the propulsion screw is driven by the servo motor.

[0022] Furthermore, the transfer mechanism includes cylinder 2; cylinder 2 is fixedly connected to the workbench; one end of cylinder 2 away from the workbench is fixedly connected to a clamping base; clamping screws are rotatably connected on both sides of the clamping base; a fixing plate is threadedly connected to the clamping screw; a transmission gear is rotatably connected to the bottom of the clamping base; the output end of the transmission gear is fixedly connected to the input end of the clamping screw; the side wall of the clamping base is rotatably connected to a driving gear; the driving gear is meshed with the transmission gear; the side wall of the silo is fixedly connected to a rack; the end of the drive gear away from the transmission gear is movably meshed with the rack.

[0023] Furthermore, the material transport mechanism includes a side panel; the side panel is fixedly connected to the workbench; the side wall of the side panel is rotatably connected to a rotating arm; the end of the rotating arm away from the side panel is rotatably connected to a telescopic arm; the end of the telescopic arm is fixedly connected to a first clamping plate; the side wall of the telescopic arm is fixedly connected to a second clamping plate.

[0024] Furthermore, a material removal plate is rotatably arranged in the material removal tray; and the material removal plates are arranged in multiple groups.

[0025] Furthermore, a material discharge trough is fixedly connected to the side wall of the workbench; a turntable is fixedly connected to the workbench; one end of the turntable away from the workbench is fixedly connected to the packaging table; and the packaging table is driven to rotate by the turntable.

[0026] Beneficial effects of the present invention:

[0027] (1) The present invention places the processed biscuits on a feeding tray on a packaging table, then places the packaging bag into a feeding mechanism, and then uses a transfer mechanism and a material transporting mechanism to transport the packaging bag to the clamping arm on the packaging table. After being clamped by the clamping arm, the packaging table is driven to rotate, and the clamping arm with the packaging bag is rotated to the feeding funnel. The biscuits are fed into the packaging bag through the feeding funnel, and finally nitrogen filling and sealing are performed. By uniformly placing the biscuits and the packaging bag in their respective positions, and then using the transfer mechanism and the material transporting mechanism to transport them, and then cooperating with the feeding funnel to fill the biscuits, the packaging of the biscuits can be quickly achieved, thereby improving the packaging efficiency.

[0028] (2) In the present invention, when the packaging bag on the clamp arm reaches the bottom of the U-shaped block, the two groups of movable plates also approach each other, so that the two groups of suction cups adsorb the packaging bag. At the same time, the two groups of movable plates are completely attached to each other, and then the packaging table is driven to rotate again. During the rotation, the clamp arm will be driven to rotate to the bottom of the lifting bin, and the packaging bag will move away from the suction cup while rotating again. At the same time, the two-way screw will be driven to rotate. This rotation will cause the two groups of movable plates to move to both sides, so that the suction cup is used to open the bag mouth of the packaging bag. When the packaging bag reaches the bottom of the lifting bin, the lifting screw is driven to rotate by gear 2, so that the top column descends into the packaging bag and the bag mouth of the packaging bag is completely opened. After opening, the packaging bag continues to rotate to the discharge funnel, and the biscuits are discharged into the packaging bag through the discharge funnel. Finally, nitrogen is filled to complete the packaging.

[0029] (3) The present invention places the packaging bag into the silo. The packaging bag is the packaging bag body, hereinafter referred to as the packaging bag. After the packaging bag is placed in the silo, the packaging operation will begin. First, the push screw in the push silo is driven to rotate. During the rotation, the connecting plate will be used to drive the rubber block to move, and the packaging bag will be pushed to the transfer mechanism. After being clamped by the transfer mechanism, it will be transported to the clamping arm by the material transport mechanism for clamping, and then the packaging work will be carried out.

[0030] (4) The present invention rotates the packaging table and uses teeth to drive the clamping arm, U-shaped block and lifting groove to open and package the packaging bags. Compared with the equipment equipped with cylinders and negative pressure suction cups, the accuracy of the packaging work is improved, and high-speed operation can be performed to improve production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] Figure 1 is a flow chart of the packaging process in the present invention;

[0033] Figure 2 It is a schematic diagram of the overall structure of the packaging device in the present invention;

[0034] Figure 3 is a cross-sectional view of the overall structure of the packaging device in the present invention;

[0035] Figure 4 It is a schematic diagram of the overall structure of the packaging station in the present invention;

[0036] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0037] Figure 6 It is a schematic diagram of the overall structure of the feeding mechanism and the transfer mechanism in the present invention;

[0038] Figure 7 It is a cross-sectional view of the overall structure of the transfer mechanism in the present invention;

[0039] Figure 8 yes Figure 7 The enlarged view of point B in the middle;

[0040] Fig. 9 It is a schematic diagram of the overall structure of the material transport mechanism in the present invention.

[0041] Description of the drawings: 1. Packaging equipment; 2. Workbench; 3. Feeding mechanism; 31. Feeding base; 32. Cylinder 1; 321. Top plate; 33. Material bin; 34. Push bin; 35. Push screw; 352. Connecting plate; 353. Rubber block; 36. Servo motor; 37. Rack; 4. Material transport mechanism; 41. Side plate; 42. Rotating arm; 43. Telescopic arm; 44. Clamp 1; 45. Clamp 2; 5. Packaging mechanism; 51. Turntable; 52. Packaging table; 521. Gear; 522. Clamp arm; 53. Unloading tray; 5 31. Feeding plate; 532. Feeding hopper; 54. U-shaped block; 541. Bidirectional screw; 542. Moving plate; 543. Suction cup; 55. Gear 1; 56. Lifting bin; 561. Lifting screw; 562. Lifting plate; 563. Top column; 57. Gear 2; 58. Connecting column; 581. Fixed plate; 6. Packaging bag body; 7. Transfer mechanism; 71. Cylinder 2; 72. Clamping base; 73. Clamping screw; 74. Transmission gear; 75. Driving gear; 76. Fixed plate; 8. Nitrogen charging mechanism; 9. Feeding chute. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Figure 1 The process flow chart of this embodiment is shown in FIG. Figure 1-Figure 9 As shown, the present application provides a food preservation packaging process, comprising the following steps:

[0044] S1, after the biscuits are baked, the baked biscuits are sealed and cooled to below 40 degrees;

[0045] S2, before the operation starts, the nitrogen filling device is connected to the packaging device 1, and the parameters of the nitrogen filling device are adjusted. After the parameter adjustment is completed, the packaging device 1 is used to perform a nitrogen pre-filling operation on the opening of the biscuit packaging bag;

[0046] S3, after the cooled biscuits fall into the feeding tray, the packaging device 1 is used to quickly drive the biscuits into bags for packaging, and then transported to the packaging area for overall packaging, and finally transported and sold;

[0047] During operation, the biscuits to be packaged are first pre-processed. For example, after the biscuits are baked, they are first cooled and the surface of the biscuits is ensured to be clean. Then, suitable packaging containers are selected according to the packaging requirements. These containers should have good sealing and barrier properties to prevent gas and moisture from entering. Then, the processed biscuits are placed on the packaging device 1, and then the nitrogen filling device is connected to the packaging device 1. After the connection, the parameters of the nitrogen filling device are adjusted. After the nitrogen filling is completed, the packaging container is immediately sealed to ensure that the nitrogen will not leak. Finally, the packaged food is removed for collection, and then transported and sold in a unified manner.

[0048] like Figure 2-Figure 9 As shown, the packaging device 1 includes a workbench 2 and further includes:

[0049] A feeding mechanism 3 is arranged on the workbench 2 and is used for feeding packaging bags;

[0050] A transfer mechanism 7, arranged at the end of the feeding mechanism 3, for transferring packaging bags;

[0051] A material transport mechanism 4, arranged on the workbench 2, for transporting packaging bags;

[0052] The packaging mechanism 5 is arranged on the workbench 2 and is used for packaging biscuits;

[0053] A nitrogen filling mechanism 8 is arranged in the packaging mechanism 5 and is used for nitrogen filling during packaging;

[0054] The packaging mechanism 5 includes a packaging table 52; the packaging table 52 is rotatably arranged on the workbench 2; a tooth 521 is fixedly connected to the top of the packaging table 52; the tooth 521 is provided with multiple groups; a clamping arm 522 is fixedly connected to the side wall of the packaging table 52; the clamping arm 522 is provided with multiple groups; a connecting column 58 is rotatably connected to the middle of the packaging table 52; the end of the connecting column 58 away from the packaging table 52 is fixedly connected to a fixed disk 581; a feed tray 53 is fixedly connected to the top of the fixed disk 581; a feed hopper 532 is fixedly connected to the bottom of the feed tray 53; the feed hopper 532 is arranged through the feed tray 53 and the fixed disk 581;

[0055] During operation, in the prior art, the weighing equipment can be set up to automatically weigh the food for packaging. However, it is found in actual use that the food is weighed in groups, that is, it is also packaged in groups during the packaging process. The quantity is large during the production process. A single weighing and then packaging will cause excessive accumulation of subsequent biscuits, resulting in slow packaging efficiency and affecting the overall production. In order to prevent such incidents from happening, first, the processed biscuits are placed in the unloading tray 53 on the packaging table 52, and then the packaging bag is placed in the feeding mechanism 3, and then the biscuits are packed in the feeding mechanism 3. The packaging bag is transported to the clamping arm 522 on the packaging table 52 by the transfer mechanism 7 and the material transport mechanism 4, and is clamped by the clamping arm 522. After clamping, the packaging table 52 is driven to rotate, and the clamping arm 522 with the packaging bag is rotated to the discharge funnel 532, and the biscuits are discharged into the packaging bag through the discharge funnel 532, and finally nitrogen filling and sealing are performed. By uniformly placing the biscuits and the packaging bag in their respective positions, and then transporting them by the transfer mechanism 7 and the material transport mechanism 4, and then cooperating with the discharge funnel 532 to fill the biscuits, the packaging of the biscuits can be quickly achieved, thereby improving the packaging efficiency.

[0056] like Figure 3-Figure 5As shown, the bottom of the fixed plate 581 is fixedly connected to a U-shaped block 54; the side wall of the U-shaped block 54 is rotatably connected to a bidirectional screw rod 541; a movable plate 542 is threadedly connected to the bidirectional screw rod 541; two groups of movable plates 542 are provided; one end of the movable plate 542 away from the bidirectional screw rod 541 is fixedly connected to a suction cup 543; the U-shaped block 54 is provided above the clamping arm 522; the side wall of the U-shaped block 54 is rotatably connected to a gear 1 55; the output end of the gear 1 55 is fixedly connected to the input end of the bidirectional screw rod 541; the gear One 55 is meshed with the teeth 521; the bottom of the fixed plate 581 is fixedly connected with a lifting bin 56; the lifting screw 561 is rotatably connected in the lifting bin 56; the lifting screw 561 is threadedly connected with a lifting plate 562; the bottom of the lifting plate 562 is fixedly connected with a top column 563; the top column 563 is arranged above the clamping arm 522; the bottom of the lifting bin 56 is rotatably connected with a gear 2 57; the output end of the gear 2 57 is fixedly connected with the input end of the lifting screw 561; the gear 2 57 is meshed with the teeth 521;

[0057] During operation, after the packaging bag is transported to the clamping arm 522 for clamping, the packaging table 52 is driven to rotate. During the rotation, the packaging table 52 will rotate the clamping arm 522 with the packaging bag to the bottom of the U-shaped block 54, and at the same time, the gear 55 on the side wall of the U-shaped block 54 will be driven to rotate through the teeth 521, thereby driving the bidirectional screw rod 541 in the U-shaped block 54 to rotate. When the bidirectional screw rod 541 rotates, it will drive the two sets of movable plates 542 connected by threads to move in a mirror image. When the packaging bag on the clamping arm 522 reaches the bottom of the U-shaped block 54, the two sets of movable plates 542 also approach each other, so that the two sets of suction cups 543 adsorb the packaging bag. When adsorbed, the two sets of movable plates 542 are also completely fitted. Then the packaging table 52 is driven to rotate again, and the clamping arm 522 will be driven to rotate to the lifting position during the rotation. The packaging bag is moved away from the suction cup 543 and the two-way screw rod 541 is driven to rotate. This rotation will cause the two sets of movable plates 542 to move to both sides, so that the bag mouth of the packaging bag can be opened by using the suction cup 543. When the packaging bag reaches the bottom of the lifting warehouse 56, the lifting screw rod 561 is driven to rotate by the gear 2 57, so that the top column 563 is lowered into the packaging bag, and the bag mouth of the packaging bag is completely opened. After opening, the packaging bag continues to rotate to the discharge funnel 532, and the biscuits are discharged into the packaging bag through the discharge funnel 532. Finally, nitrogen is filled to complete the packaging. In addition, the lifting warehouse 56 and the components in the U-shaped block 54 are repeatedly driven to work each time the lifting warehouse 56 and the U-shaped block 54 are repeatedly driven to work, that is, the next group of packaging bags are opened to achieve the effect of rapid packaging.

[0058] like Figure 6As shown, the feeding mechanism 3 includes a feeding base 31 and a material bin 33; the feeding base 31 and the material bin 33 are fixedly connected to the workbench 2; the material bin 33 is arranged higher than the feeding base 31; a cylinder 32 is fixedly connected to the feeding base 31; a top plate 321 is fixedly connected to the end of the cylinder 32 away from the feeding base 31; a notch is opened in the middle of the material bin 33; the top plate 321 is arranged through the notch; the side walls of the material bin 33 are fixedly connected to the push bin 34; a push screw 35 is rotatably connected in the push bin 34; a connecting plate 352 is threadedly connected to the push screw 35; a rubber block 353 is fixedly connected to the middle of the connecting plate 352; a packaging bag body 6 is arranged in the material bin 33; the rubber block 353 is arranged above the packaging bag body 6; the top plate 321 is arranged at the bottom of the packaging bag body 6; a servo motor 36 is fixedly connected to the side wall of the push bin 34; the push screw 35 is driven by the servo motor 36;

[0059] During operation, the packaging bag is first placed in the silo 33. The packaging bag is the packaging bag body 6, hereinafter referred to as the packaging bag. After the packaging bag is placed in the silo 33, the packaging operation will begin. First, the propulsion screw 35 in the propulsion bin 34 is driven to rotate. During the rotation, the connecting plate 352 will be used to drive the rubber block 353 to move, and the packaging bag will be pushed to the transfer mechanism 7. After being clamped by the transfer mechanism 7, it will be transported to the clamping arm 522 by the material transport mechanism 4 for clamping, and then the packaging operation will be carried out. After the propulsion is completed, the two-way screw 541 will be used to drive the rubber block 353 to move back to the initial position. While moving back, the cylinder 32 contracts. During the contraction, the packaging bag loses the squeezing of the cylinder 32 and the top plate 321, thereby losing the contact with the rubber block 353, thereby avoiding driving the packaging bag to move when the rubber block 353 moves back.

[0060] like Figure 7 As shown, the transfer mechanism 7 includes a second cylinder 71; the second cylinder 71 is fixedly connected to the workbench 2; the end of the second cylinder 71 away from the workbench 2 is fixedly connected to a clamping base 72; the clamping base 72 is rotatably connected to clamping screws 73 on both sides; the clamping screw 73 is threadedly connected to a fixing plate 76; the bottom of the clamping base 72 is rotatably connected to a transmission gear 74; the output end of the transmission gear 74 is fixedly connected to the input end of the clamping screw 73; the side wall of the clamping base 72 is rotatably connected to a driving gear 75; the driving gear 75 is meshed with the transmission gear 74; the side wall of the silo 33 is fixedly connected to a rack 37; the end of the driving gear 75 away from the transmission gear 74 is movably meshed with the rack 37;

[0061] When the gear 75 is in contact with the gear 76, the gear 74 is in contact with the gear 76, and the gear 76 is moved downwards to move the gear 76 back and forth, so that the gear 76 can move freely, and the gear 76 can move freely, so that the gear 76 can move freely, and the gear 76 can move freely.

[0062] like Fig. 9 As shown, the material transport mechanism 4 includes a side plate 41; the side plate 41 is fixedly connected to the workbench 2; the side wall of the side plate 41 is rotatably connected to a rotating arm 42; the end of the rotating arm 42 away from the side plate 41 is rotatably connected to a telescopic arm 43; the end of the telescopic arm 43 is fixedly connected to a clamping plate 1 44; the side wall of the telescopic arm 43 is fixedly connected to a clamping plate 2 45;

[0063] During operation, the material transport mechanism 4 clamps the packaging bag by combining the clamping plate 1 44 and the clamping plate 2 45, and after clamping, drives the rotating arm 42 to rotate the clamping plate 1 44 and the clamping plate 2 45 to the clamping arm 522, and then clamps the packaging bag through the clamping arm 522, and rotates the horizontal packaging bag to a vertical state during transportation, so as to facilitate the subsequent bagging of biscuits and then perform packaging operations.

[0064] like Figure 2 As shown, a material removal plate 531 is rotatably arranged in the material removal tray 53; the material removal plate 531 is provided with multiple groups;

[0065] During operation, the biscuits in the discharge tray 53 can be transported to the discharge funnel 532 through the rotating discharge plate 531 to be bagged.

[0066] like Figure 7 As shown, the side wall of the workbench 2 is fixedly connected with a material discharge trough 9; a turntable 51 is fixedly connected to the workbench 2; one end of the turntable 51 away from the workbench 2 is fixedly connected to the packaging table 52; the packaging table 52 is driven to rotate by the turntable 51;

[0067] During operation, after the biscuits are bagged, they arrive at the nitrogen filling mechanism 8, are filled with nitrogen and sealed by the nitrogen filling mechanism 8, and after sealing, the clamping arm 522 contacts the clamping of the packaging bag, so that it falls into the unloading chute 9 for unloading, and the packaging table 52 can be rotated by the turntable 51. When the packaging table 52 rotates, it will not drive the connecting column 58 to rotate, that is, it will not drive the fixed plate 581 to rotate.

[0068] The working principle of the present invention is as follows: first, a packaging bag is placed in the silo 33. The packaging bag is the packaging bag body 6, hereinafter referred to as the packaging bag. After the packaging bag is placed in the silo 33, the packaging operation will begin. First, the push screw 35 in the push bin 34 is driven to rotate. During the rotation, the connecting plate 352 is used to drive the rubber block 353 to move, and the packaging bag is pushed to the transfer mechanism 7. After being clamped by the transfer mechanism 7, it is transported to the clamping arm 522 by the material transport mechanism 4 for clamping, and then the packaging work is carried out. When the packaging bag After being transported to the clamping arm 522 for clamping, the packaging platform 52 is driven to rotate. During the rotation, the packaging platform 52 will rotate the clamping arm 522 with the packaging bag to the bottom of the U-shaped block 54, and at the same time, the gear 55 on the side wall of the U-shaped block 54 will be driven to rotate through the teeth 521, thereby driving the bidirectional screw rod 541 in the U-shaped block 54 to rotate. When the bidirectional screw rod 541 rotates, it will drive the two sets of moving plates 542 connected by threads to move in a mirror image. When the packaging bag on the clamping arm 522 reaches the bottom of the U-shaped block 54, the two sets of moving plates 542 are moved in a mirror image. The movable plates 542 also approach each other, so that the two groups of suction cups 543 adsorb the packaging bag. When adsorbed, the two groups of movable plates 542 are also completely attached. Then the packaging table 52 is driven to rotate again, and the clamping arm 522 is driven to rotate to the bottom of the lifting bin 56 during the rotation. When the packaging bag is rotated again, it will move away from the suction cups 543, and at the same time drive the bidirectional screw rod 541 to rotate. This rotation will move the two groups of movable plates 542 to both sides, so that the bag mouth of the packaging bag is opened by using the suction cups 543. When the packaging bag reaches At the same time, the lifting bin 56 is below, and the lifting screw rod 561 is driven to rotate through the gear 2 57, so that the top column 563 descends into the packaging bag, and the bag mouth of the packaging bag is completely opened. After opening, the packaging bag continues to rotate to the discharge funnel 532, and the biscuits are discharged into the packaging bag through the discharge funnel 532. Finally, nitrogen is filled to complete the packaging. In addition, during each movement, the lifting bin 56 and the components in the U-shaped block 54 are repeatedly driven to work, that is, the next group of packaging bags are opened to achieve a quick packaging effect.

[0069] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A food preservation packaging process, characterized in that: The following steps are involved: S1, after the biscuits are baked, the baked biscuits are sealed and cooled to below 40 degrees; S2, before the operation starts, the nitrogen filling device is connected to the packaging device (1), and the parameters of the nitrogen filling device are adjusted. After the parameter adjustment is completed, the packaging device (1) is used to perform a nitrogen filling operation on the opening of the biscuit packaging bag; S3, after the cooled biscuits fall into the feeding tray, the packaging equipment (1) is used to quickly drive the biscuits into bags for packaging, and then transport them to the packaging area for overall packaging, and finally transport and sell them.

2. A food preservation packaging process according to claim 1, characterized in that: The packaging device (1) comprises a workbench (2), and further comprises: A feeding mechanism (3) is arranged on the workbench (2) and is used for feeding packaging bags; A transfer mechanism (7), arranged at the end of the feeding mechanism (3), for transferring packaging bags; A material transport mechanism (4), arranged on the workbench (2) and used for transporting packaging bags; A packaging mechanism (5), arranged on the workbench (2), for packaging biscuits; A nitrogen filling mechanism (8) is arranged in the packaging mechanism (5) and is used for nitrogen filling during packaging; The packaging mechanism (5) comprises a packaging table (52); the packaging table (52) is rotatably arranged on the workbench (2); the top of the packaging table (52) is fixedly connected with teeth (521); the teeth (521) are arranged in multiple groups; the side wall of the packaging table (52) is fixedly connected with a clamping arm (522); the clamping arm (522) is arranged in multiple groups; the middle of the packaging table (52) is rotatably connected with a connecting column (58); the end of the connecting column (58) away from the packaging table (52) is fixedly connected with a fixed disk (581); the top of the fixed disk (581) is fixedly connected with a material discharge tray (53); the bottom of the material discharge tray (53) is fixedly connected with a material discharge hopper (532); the material discharge hopper (532) is arranged to pass through the material discharge tray (53) and the fixed disk (581).

3. A food preservation packaging process according to claim 2, characterized in that: The bottom of the fixed plate (581) is fixedly connected to a U-shaped block (54); the side wall of the U-shaped block (54) is rotatably connected to a bidirectional screw rod (541); a movable plate (542) is threadedly connected to the bidirectional screw rod (541); two groups of movable plates (542) are provided; one end of the movable plate (542) away from the bidirectional screw rod (541) is fixedly connected to a suction cup (543); the U-shaped block (54) is provided above the clamping arm (522); the side wall of the U-shaped block (54) is rotatably connected to a gear one (55); the output end of the gear one (55) is fixedly connected to the input end of the bidirectional screw rod (541); the gear one (55) is 5) is meshed with the teeth (521); the bottom of the fixed plate (581) is fixedly connected with a lifting bin (56); a lifting screw rod (561) is rotatably connected inside the lifting bin (56); a lifting plate (562) is threadedly connected to the lifting screw rod (561); a top column (563) is fixedly connected to the bottom of the lifting plate (562); the top column (563) is arranged above the clamping arm (522); a gear 2 (57) is rotatably connected to the bottom of the lifting bin (56); the output end of the gear 2 (57) is fixedly connected to the input end of the lifting screw rod (561); the gear 2 (57) is meshed with the teeth (521).

4. A food preservation packaging process according to claim 3, characterized in that: The feeding mechanism (3) comprises a feeding base (31) and a silo (33); the feeding base (31) and the silo (33) are fixedly connected to the workbench (2); the silo (33) is arranged higher than the feeding base (31); a cylinder (32) is fixedly connected to the feeding base (31); a top plate (321) is fixedly connected to the end of the cylinder (32) away from the feeding base (31); a notch is provided in the middle of the silo (33); the top plate (321) is arranged to penetrate the notch; and the side walls on both sides of the silo (33) are fixedly connected to the propulsion silo (34) ); a propulsion screw (35) is rotatably connected in the propulsion bin (34); a connecting plate (352) is threadedly connected to the propulsion screw (35); a rubber block (353) is fixedly connected to the middle of the connecting plate (352); a packaging bag body (6) is arranged in the silo (33); the rubber block (353) is arranged above the packaging bag body (6); the top plate (321) is arranged at the bottom of the packaging bag body (6); a servo motor (36) is fixedly connected to the side wall of the propulsion bin (34); and the propulsion screw (35) is driven by the servo motor (36).

5. A food preservation packaging process according to claim 4, characterized in that: The transfer mechanism (7) comprises a second cylinder (71); the second cylinder (71) is fixedly connected to the workbench (2); the end of the second cylinder (71) away from the workbench (2) is fixedly connected to a clamping base (72); the two sides of the clamping base (72) are rotatably connected to clamping screws (73); the clamping screw (73) is threadedly connected to a fixing plate (76); the bottom of the clamping base (72) is rotatably connected to a transmission gear (74); the output end of the transmission gear (74) is fixedly connected to the input end of the clamping screw (73); the side wall of the clamping base (72) is rotatably connected to a driving gear (75); the driving gear (75) is meshedly connected to the transmission gear (74); the side wall of the silo (33) is fixedly connected to a rack (37); the end of the driving gear (75) away from the transmission gear (74) is movably meshed with the rack (37).

6. A food preservation packaging process according to claim 5, characterized in that: The material transport mechanism (4) comprises a side plate (41); the side plate (41) is fixedly connected to the workbench (2); the side wall of the side plate (41) is rotatably connected to a rotating arm (42); one end of the rotating arm (42) away from the side plate (41) is rotatably connected to a telescopic arm (43); the end of the telescopic arm (43) is fixedly connected to a first clamping plate (44); and the side wall of the telescopic arm (43) is fixedly connected to a second clamping plate (45).

7. A food preservation packaging process according to claim 6, characterized in that: A material removal plate (531) is rotatably arranged in the material removal tray (53); a plurality of groups of material removal plates (531) are arranged.

8. A food preservation packaging process according to claim 7, characterized in that: A material discharge trough (9) is fixedly connected to the side wall of the workbench (2); a turntable (51) is fixedly connected to the workbench (2); an end of the turntable (51) away from the workbench (2) is fixedly connected to a packaging table (52); and the packaging table (52) is driven to rotate by the turntable (51).

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