CN112173219A

CN112173219A - Food packaging device

Info

Publication number: CN112173219A
Application number: CN202011206567.6A
Authority: CN
Inventors: 刘英英
Original assignee: Individual
Current assignee: Linyi Youkang Biology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-01-05
Anticipated expiration: 2040-11-03
Also published as: CN112173219B

Abstract

The invention relates to the field of packaging, in particular to a food packaging device. The invention aims to provide a food packaging device for quantitatively boxing and efficiently packaging. The technical scheme of the invention is that the food packaging device comprises a base, a first supporting frame, a first supporting plate, a second supporting plate, a third supporting plate and the like; first backup pad fixed mounting is in one side of base, and first backup pad fixed mounting is in one side of being close to first backup pad of base, and second backup pad fixed mounting is in intermediate position one side of base, and one side fixed connection of second backup pad and first backup pad, third backup pad fixed mounting is in one side of keeping away from first backup pad of base, and switch fixed mounting is in one side of third backup pad. The installation of the first supporting frame ensures that the quantity of biscuits filled into the box is always consistent, the biscuits are stably fed consistently, and the efficiency of the whole device is improved.

Description

Food packaging device

Technical Field

The invention relates to the field of packaging, in particular to a food packaging device.

Background

The packaging of food, which is an integral part of the food commodity, is one of the main projects in the food industry process, and it protects the food, prevents the damage of biological, chemical, physical external factors during the circulation of the food from the factory to the consumer, and it may also have the function of maintaining the stable quality of the food itself.

The packing of food generally adopts the packing carton to pack, and the traditional method of putting the biscuit into the packing carton is that the manual work is packed the biscuit into the packing carton, and this kind of manual work is put the method efficiency in the packing carton into with the biscuit, and the biscuit that each packing carton was packed into may be different in quantity, and the manual work goes to look for, both wastes manpower, wastes time again.

Therefore, the development of a food packaging device which can replace manual packaging, control the number of biscuits in a packaging box and improve the packaging efficiency is urgently needed.

Disclosure of Invention

In order to overcome the defects of manpower and time waste and inconsistent quantity, the invention has the technical problems that: provides a food packaging device for quantitatively boxing and efficiently packaging.

The technical implementation scheme of the invention is as follows: a food packaging device comprises a base, a first supporting frame, a first supporting plate, a second supporting plate, a third supporting plate, a switch, a material pushing mechanism, a material discharging mechanism and a buckle cover mechanism, wherein the first supporting frame is fixedly arranged on one side of the base, the first supporting plate is fixedly arranged on one side, close to the first supporting frame, of the base, the second supporting plate is fixedly arranged on one side of the middle position of the base, the second supporting plate is fixedly connected with one side of the first supporting frame, the third supporting plate is fixedly arranged on one side, far away from the first supporting frame, of the base, the switch is fixedly arranged on one side of the third supporting plate, the material pushing mechanism is fixedly arranged on one side of the first supporting plate, one side of the material pushing mechanism is slidably connected with the first supporting frame, the material pushing mechanism is fixedly connected with the second supporting plate, the material discharging mechanism is arranged between the second supporting plate and the third supporting, The second supporting plate is fixedly connected with the third supporting plate, and the cover buckling mechanism is fixedly connected with the material pushing mechanism.

In a preferred embodiment of the invention, the pushing mechanism comprises a support, a first cylinder, a first sliding plate, a sliding cylinder, a second sliding plate, a first sliding block, a connecting rod, a pushing disc, a tension spring, a sliding frame and a sliding rod, wherein the support is fixedly arranged on a first supporting plate, the first cylinder is fixedly arranged on one side of the support far away from the base, the first sliding plate is fixedly arranged at one end of a telescopic rod of the first cylinder, the sliding cylinder is fixedly arranged on one sides of a first supporting frame and a second supporting plate far away from the base, the first sliding plate is connected with the sliding cylinder in a sliding manner, the second sliding plate is slidably arranged on one side of the first supporting frame close to the sliding cylinder, one side of the second sliding plate is connected with the sliding cylinder in a sliding manner, the first sliding block is fixedly arranged at one end of the first sliding plate far away from the first cylinder, the connecting rod is fixedly arranged on one side of the first sliding block, the pushing disc is fixedly arranged at, one ends of the two sliding rods are fixedly arranged on one side, close to the third supporting plate, of the second supporting plate, the other ends of the two sliding rods are fixedly arranged on one side of the third supporting plate, one circular side of the sliding frame is connected with the sliding barrel in a sliding mode, the other side of the sliding frame is connected with the sliding rods in a sliding mode, the other side of the sliding frame is fixedly connected with one end of the tension spring, and one side, far away from the tension spring, of the sliding frame is connected.

In a preferred embodiment of the invention, the discharging mechanism comprises a fourth supporting plate, a second cylinder, supporting rods and a second sliding block, the fourth supporting plate is fixed between the third supporting plate and the second supporting plate, the second cylinder is fixed on one side of the fourth supporting plate close to the base, the two supporting rods are fixed between the third supporting plate and the second supporting plate close to one side of the fourth supporting plate, the second sliding block is fixed at one end of one of the supporting rods, and the second sliding block is connected with the third supporting plate in a sliding manner.

In a preferred embodiment of the invention, the buckling cover mechanism comprises a second supporting frame, a pushing block, an L-shaped frame, a third air cylinder, a bent rod, a buffer mechanism, a gear strip and baffle plates, wherein the second supporting frame is fixedly arranged at one side of the first supporting plate and the second supporting plate, the pushing block is slidably arranged at one side of the second supporting frame close to the first supporting plate, the pushing block is fixedly connected with one end of the first sliding plate, the L-shaped frame is fixedly arranged at one side of the second supporting frame close to the third supporting plate, one end of the L-shaped frame is fixedly connected with the third supporting plate, the third air cylinder is fixedly arranged at one side of the L-shaped frame far from the base, the third air cylinder penetrates through two sides of the L-shaped frame, the bent rod is fixedly arranged on a telescopic rod of the third air cylinder, the buffer mechanism is slidably connected with one side of the bent rod, one side of the gear strip is slidably connected with the third supporting plate, one ends of the two baffle, the other ends of the two baffles are fixedly connected with one side of the second supporting frame close to the third supporting plate.

In a preferred embodiment of the invention, the buffer mechanism comprises a pressure plate, a supporting rod and a spring, wherein the supporting rod is slidably arranged on one side of the bent rod, the pressure plate is fixedly arranged on one end of the supporting rod far away from the bent rod, the spring is sleeved on the supporting rod, one end of the spring is fixedly connected with one side of the bent rod, and the other end of the spring is fixedly connected with one side of the pressure plate.

In a preferred embodiment of the invention, the conveying device further comprises a conveying mechanism, the conveying mechanism comprises shaft rods, rotary drums, ratchets, rotary frames, conveying belts and partition plates, two sides of the two shaft rods are respectively and rotatably arranged on two sides of the second supporting plate and the third supporting plate, one of the shaft rods is in sliding connection with a groove formed in one side, close to the gear strip, of the third supporting plate, the two rotary drums are respectively and fixedly arranged at the middle positions of the two shaft rods, the conveying belts are wound on the two rotary drums, the rotary frames are fixedly arranged on one sides, close to the gear strip, of the shaft rods, the ratchets are slidably arranged on the outer sides of the rotary frames, the ratchets are meshed with the.

In a preferred embodiment of the invention, the two baffles are provided with adhesive strips on one side of the inner part thereof, so that when the buckle cover is fed above the box filled with biscuits, the buckle cover is temporarily supported, and the buckle cover can be accurately fastened on the box.

In a preferred embodiment of the invention, the ratchet wheel is shaped such that the outer side is straight teeth and the inner side is ratchet teeth, so that stroke variation is realized and rotation of the conveyor belt is controlled.

Has the advantages that:

1. the installation of first carriage makes the biscuit pack into the quantity of incasement and keeps unanimous all the time, and the stable unloading of consistent makes the efficiency of whole device improve.

2. The ratchet wheel is arranged, so that the conveyor belt can work intermittently, the process that biscuits are filled inwards is more stable due to the intermittent work of the conveyor belt, and the waste of the biscuits falling to the outside is greatly reduced.

3. The installation of second carriage and ejector pad has removed the manual work and has placed the packing carton, has improved the efficiency of packing.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic structural diagram of the pushing mechanism of the present invention.

Fig. 3 is a schematic view of a partial structure of the pushing mechanism of the present invention.

Fig. 4 is a schematic structural view of the discharging mechanism of the invention.

Fig. 5 is a schematic structural view of the buckle cover mechanism of the present invention.

Fig. 6 is a schematic view of a first partial structure of the capping mechanism of the present invention.

Fig. 7 is a schematic structural diagram of the conveying mechanism of the present invention.

Fig. 8 is a partial structural schematic diagram of the conveying mechanism of the present invention.

Fig. 9 is a second partial structure diagram of the cover fastening mechanism of the present invention.

Wherein the figures include the following reference numerals: 1-base, 101-first support frame, 102-first support plate, 103-second support plate, 104-third support plate, 1041-switch, 2-bracket, 2 a-first cylinder, 201-first slide plate, 202-slide cylinder, 203-second slide plate, 204-first slide block, 205-connecting rod, 206-push plate, 207-tension spring, 208-slide frame, 209-slide rod, 3-fourth support plate, 301-second cylinder, 302-support rod, 303-second slide block, 4-second support frame, 401-push block, 402-L-shaped frame, 403-third cylinder, 4031-press plate, 404-bent rod, 405-rack bar, 406-baffle plate, 4061-adhesive tape, 407-support rod, 408-spring, 5-shaft, 501-drum, 502-ratchet, 5021-turret, 503-conveyor, 504-spacer.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Example 1

A food packaging device is disclosed, as shown in figures 1-6 and 9, and comprises a base 1, a first supporting frame 101, a first supporting plate 102, a second supporting plate 103, a third supporting plate 104, a switch 1041, a material pushing mechanism, a material discharging mechanism and a cover buckling mechanism, wherein the first supporting frame 101 is fixedly arranged on the front side of the upper part of the base 1, the first supporting plate 102 is positioned on the right side of the first supporting frame 101, the second supporting plate 103 is fixedly arranged on the middle position of the upper part of the base 1, the second supporting plate 103 is fixedly connected with the rear side of the first supporting frame 101, the third supporting plate 104 is fixedly arranged on the rear side of the upper part of the base 1, the switch 1041 is fixedly arranged on the left part close to the middle position of the upper part of the front part of the third supporting plate 104, the material pushing mechanism is fixedly arranged on the left side of the first, the material pushing mechanism is fixedly connected with the second supporting plate 103, the material discharging mechanism is arranged between the second supporting plate 103 and the third supporting plate 104, the cover buckling mechanism is fixedly connected with the first supporting plate 102, the second supporting plate 103 and the third supporting plate 104, and the cover buckling mechanism is fixedly connected with the material pushing mechanism.

When the biscuits in batches are packaged, firstly, the biscuits are manually placed on the first supporting frame 101, the biscuits are placed in rows, the material pushing mechanism is started, the biscuits at the lowest layer are pushed to the upper side of the material discharging mechanism by the material pushing mechanism, the switch 1041 is started, the material discharging mechanism moves out of the space through which the biscuits can pass, after the biscuits enter the box, the box is moved to the lower side of the cover buckling mechanism, the cover buckling mechanism buckles and seals the box, and then the biscuits are manually collected.

Example 2

On the basis of embodiment 1, as shown in fig. 2-3, the pushing mechanism includes a bracket 2, a first cylinder 2a, a first sliding plate 201, a sliding cylinder 202, a second sliding plate 203, a first slider 204, a connecting rod 205, a pushing disc 206, a tension spring 207, a sliding frame 208 and a sliding rod 209, the bracket 2 is fixedly installed on a first supporting plate 102, the first cylinder 2a is fixedly installed on the upper side of the bracket 2, the first sliding plate 201 is fixedly installed on the rear end of the telescopic rod of the first cylinder 2a, the sliding cylinder 202 is fixedly installed on the upper sides of a first supporting frame 101 and a second supporting plate 103, the first sliding plate 201 is slidably connected with the sliding cylinder 202, the second sliding plate 203 is slidably installed on the right side of the first supporting frame 101, the right side of the second sliding plate 203 is slidably connected with the sliding cylinder 202, the first slider 204 is fixedly installed on the left end of the first sliding plate 201, the connecting rod 205 is fixedly installed on the rear side of the first slider 204, the pushing disc 206 is, the front end of the tension spring 207 is fixedly installed on the inner upper side of the first support frame 101, the front ends of the two slide bars 209 are fixedly installed on the inner upper side of the second support plate 103, the rear ends of the two slide bars 209 are fixedly installed on the inner upper side of the third support plate 104, the circular part of the carriage 208 is slidably connected with the slide cylinder 202, the left side of the carriage 208 is slidably connected with the slide bars 209, the left side of the carriage 208 is fixedly connected with the rear end of the tension spring 207, and the rear side of the carriage 208 is slidably connected with the switch 1041.

After the biscuits to be boxed are placed, the first air cylinder 2a is started, the telescopic rod of the air cylinder drives the first sliding plate 201 to move rightwards, the upper end of the first sliding plate 201 pushes the first sliding block 204 and the push disc 206 to push the lowermost biscuit to the discharging mechanism along the sliding barrel 202, when the first sliding plate 201 moves backwards, the lower left side of the first sliding plate 201 moves along the groove formed on the second sliding plate 203 and pushes the second sliding plate 203 to move upwards to block the rest biscuits, when the push disc 206 pushes the biscuits backwards, the sliding frame 208 positioned at the rear side of the row of biscuits moves backwards, at the moment, the tension spring 207 is in a power accumulation state, when the sliding frame 208 is pushed to contact with the third supporting plate 104, the sliding frame 208 extrudes the switch 1041, the discharging mechanism is started, the row of biscuits are loaded into the box by the discharging mechanism, after the dead weight falls, under the action of the tension spring 207, the sliding frame 208 returns to the original position of the biscuits along the, and preparing for the next material pushing process.

As shown in fig. 4, the emptying mechanism comprises a fourth supporting plate 3, a second cylinder 301, supporting rods 302 and a second sliding block 303, the fourth supporting plate 3 is fixed between the third supporting plate 104 and the second supporting plate 103, the second cylinder 301 is fixed at the lower side of the fourth supporting plate 3, the two supporting rods 302 are fixed between the third supporting plate 104 and the second supporting plate 103 and close to the right side of the fourth supporting plate 3, the second sliding block 303 is fixed at the rear end of one supporting rod 302 close to the left side, and the second sliding block 303 is connected with the third supporting plate 104 in a sliding manner.

After the sliding frame 208 is pushed to squeeze the switch 1041, the second cylinder 301 is started, the telescopic rod of the second cylinder 301 is contracted to the left to drive the supporting rod 302 on the left to move to the left, meanwhile, the second sliding block 303 moves to the left along with the supporting rod 302 on the left, when the gap between the two supporting rods 302 is enough for the biscuits to fall, the biscuits fall by the self weight, the telescopic rod of the cylinder extends outwards to drive the supporting rod 302 on the left to return to the original position, then when the sliding frame 208 returns to the original position, the squeezing of the switch 1041 is removed, and the discharging mechanism stops moving.

As shown in fig. 5-6 and fig. 9, the buckle cover mechanism includes a second support frame 4, a push block 401, an L-shaped frame 402, a third cylinder 403, a curved bar 404, a buffer mechanism, a gear bar 405 and a baffle 406, the second support frame 4 is fixedly installed above the right side of the first support plate 102 and the second support plate 103, the push block 401 is slidably installed at the front side of the second support frame 4, the push block 401 is fixedly connected with the right end of the first sliding plate 201, the L-shaped frame 402 is fixedly installed at the upper side of the rear portion of the second support frame 4, the rear end of the L-shaped frame 402 is fixedly connected with the upper end of the right portion of the third support plate 104, the third cylinder is fixedly installed at the middle position of the upper portion of the L-shaped frame 402, the third cylinder 403 penetrates through the upper and lower sides of the L-shaped frame 402, the curved bar 404 is fixedly installed on the telescopic bar of the third cylinder 403, the buffer mechanism is slidably connected with the lower side of the curved bar 404, the upper, the rear ends of the two blocking plates 406 are fixedly connected with the right side of the front part of the third supporting plate 104, and the front ends of the two blocking plates 406 are fixedly connected with the lower side of the rear part of the second supporting frame 4.

When the first cylinder 2a starts to drive the pushing mechanism to move, the pushing block 401 fixedly connected to the right side of the first sliding plate 201 moves along with the backward movement of the first sliding plate 201, the buckle cover at the lowest side is pushed between the two baffle plates 406 at the rear side, the third cylinder 403 is started at the same time, the telescopic rod of the third cylinder 403 extends downwards, the buffering mechanism fixedly arranged at the lower end of the telescopic rod of the third cylinder 403 presses and sleeves the buckle cover on the box, meanwhile, when the bent rod 404 moves downwards, the gear bar 405 fixedly arranged at the rear side of the bent rod 404 moves downwards along with the downward movement, and the gear bar 405 is meshed with the conveying mechanism to drive the conveying mechanism to convey the box.

As shown in fig. 6, the buffer mechanism includes a pressure plate 4031, a support rod 407 and a spring 408, the support rod 407 is slidably mounted on the front side of the lower portion of the curved bar 404, the pressure plate 4031 is fixedly mounted on the lower end of the support rod 407, the spring 408 is sleeved on the support rod 407, the upper end of the spring 408 is fixedly connected with the lower side of the curved bar 404, and the lower end of the spring 408 is fixedly connected with the upper side of the pressure plate 4031.

When the telescopic rod of the third cylinder 403 is pressed down, the pressing plate 4031 contacts the buckle cover, the telescopic rod is pressed down continuously, the supporting rod 407 moves upwards along the bent rod 404 while the pressing plate 4031 is pressed down, the spring 408 is compressed, certain buffering is performed on the buckle cover, after the buckle cover is pressed down, the telescopic rod of the third cylinder 403 is pressed down, the telescopic rod moves upwards, the supporting rod 407 moves downwards under the action of the spring 408, and after the telescopic rod returns to the original position, the supporting rod 407 drives the pressing plate 4031 to move upwards along with the telescopic rod of the third cylinder 403 to return to the original position.

Example 3

On the basis of the embodiment 2, as shown in fig. 7 to 8, the device further comprises a transmission mechanism, the transmission mechanism comprises a shaft rod 5, a rotary drum 501, a ratchet 502, a rotary rack 5021, a transmission belt 503 and a partition 504, the front side and the rear side of the two shaft rods 5 are respectively rotatably installed at the left side and the right side inside the second supporting plate 103 and the third supporting plate 104, the shaft rod 5 at the right side is slidably connected with a groove formed at the left side of the front part of the third supporting plate 104, the two rotary drums 501 are respectively and fixedly installed at the middle positions of the two shaft rods 5, the transmission belt 503 is wound on the two rotary drums 501, the rotary rack 5021 is fixedly installed at the rear side of the shaft rod 5 at the right side, the ratchet 502 is slidably installed at the outer side of the rotary rack 5021.

The box is manually placed on a partition plate 504 arranged on a conveyor belt 503, when a gear rack 405 is pressed down along with a bent rod 404, the gear rack 405 is meshed with straight threads on the outer side of a ratchet 502 to drive the ratchet 502 to rotate reversely, a rotating frame 5021 in sliding connection with the ratchet 502 stops at the moment, a shaft lever 5 connected with the rotating frame 5021 cannot rotate, the conveyor belt stops conveying the box, a buckle cover mechanism carries out a process on the box, after the buckle cover is finished, the gear rack 405 moves upwards, the ratchet 502 rotates forwards, inclined teeth inside the ratchet 502 are meshed with the rotating frame 5021 at the moment, the rotating frame 5021 drives the shaft lever 5 to rotate, and the shaft lever 5 drives a roller conveyor belt 503 to carry out the conveying process of the box.

As shown in fig. 9, the inner sides of the two flaps 406 are provided with adhesive strips 4061 for temporarily supporting the flaps when the flaps are fed over the box containing cookies, so as to ensure that the flaps can be fastened to the box accurately.

The inside undersides of the two baffles 406 are provided with rubber strips 4061, so that when the buckle cover is sent to the upper part of the box filled with biscuits, the buckle cover is temporarily supported, and the buckle cover can be accurately fastened on the box.

As shown in fig. 8, the ratchet 502 is shaped such that the outer side is a straight tooth and the inner side is a ratchet tooth, thereby realizing a change in stroke and controlling the rotation of the conveyor belt 503.

The ratchet 502 is shaped such that the outer side is a straight tooth and the inner side is a ratchet tooth, thereby realizing a change in stroke and controlling the rotation of the conveyor belt 503.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A food packaging device comprises a base (1), a first supporting frame (101), a first supporting plate (102), a second supporting plate (103), a third supporting plate (104) and a switch (1041), and is characterized by also comprising a material pushing mechanism, a material discharging mechanism and a cover buckling mechanism, wherein the first supporting frame (101) is fixedly arranged on one side of the base (1), the first supporting plate (102) is fixedly arranged on one side of the base (1) close to the first supporting frame (101), the second supporting plate (103) is fixedly arranged on one side of the middle position of the base (1), the second supporting plate (103) is fixedly connected with one side of the first supporting frame (101), the third supporting plate (104) is fixedly arranged on one side of the base (1) far away from the first supporting frame (101), the switch (1041) is fixedly arranged on one side of the third supporting plate (104), the material pushing mechanism is fixedly arranged on one side of the first supporting plate (102), one side of the material pushing mechanism is connected with the first supporting frame (101) in a sliding mode, the material pushing mechanism is fixedly connected with the second supporting plate (103), the material discharging mechanism is installed between the second supporting plate (103) and the third supporting plate (104), the buckling cover mechanism is fixedly connected with the first supporting plate (102), the second supporting plate (103) and the third supporting plate (104), and the buckling cover mechanism is fixedly connected with the material pushing mechanism.

2. The food packaging device according to claim 1, wherein the pushing mechanism comprises a support (2), a first cylinder (2 a), a first sliding plate (201), a sliding cylinder (202), a second sliding plate (203), a first sliding block (204), a connecting rod (205), a pushing disc (206), a tension spring (207), a sliding frame (208) and a sliding rod (209), the support (2) is fixedly arranged on the first supporting plate (102), the first cylinder (2 a) is fixedly arranged on one side of the support (2) far away from the base (1), the first sliding plate (201) is fixedly arranged at one end of a telescopic rod of the first cylinder (2 a), the sliding cylinder (202) is fixedly arranged on one sides of the first supporting frame (101) and the second supporting plate (103) far away from the base (1), the first sliding plate (201) is connected with the sliding cylinder (202) in a sliding manner, the second sliding plate (203) is slidably arranged on one side of the first supporting frame (101) near the sliding cylinder (202), one side of a second sliding plate (203) is connected with a sliding cylinder (202) in a sliding manner, a first slider (204) is fixedly arranged at one end, far away from a first air cylinder (2 a), of a first sliding plate (201), a connecting rod (205) is fixedly arranged at one side of the first slider (204), a push disc (206) is fixedly arranged at the other end of the connecting rod (205), one end of a tension spring (207) is fixedly arranged at one side, far away from a third supporting plate (104), of a first supporting frame (101), one ends of two sliding rods (209) are fixedly arranged at one side, close to the third supporting plate (104), of a second supporting plate (103), the other ends of the two sliding rods (209) are fixedly arranged at one side of the third supporting plate (104), the circular side of a sliding frame (208) is connected with the sliding cylinder (202) in a sliding manner, the other side of the sliding frame (208) is connected with the sliding rods (209) in a sliding manner, and the other, the side of the carriage (208) far away from the tension spring (207) is connected with the switch (1041) in a sliding way.

3. A food packaging unit as claimed in claim 2, wherein the dispensing means comprises a fourth support plate (3), a second cylinder (301), support rods (302) and a second slider (303), the fourth support plate (3) is fixed between the third support plate (104) and the second support plate (103), the second cylinder (301) is fixed on the side of the fourth support plate (3) close to the base (1), the two support rods (302) are fixed on the side of the third support plate (104) and the second support plate (103) close to the fourth support plate (3), the second slider (303) is fixed on one end of one of the support rods (302), and the second slider (303) is slidably connected to the third support plate (104).

4. A food packaging unit according to claim 3, wherein the cover locking mechanism comprises a second support frame (4), a push block (401), an L-shaped frame (402), a third cylinder (403), a curved rod (404), a buffer mechanism, a rack (405) and a baffle (406), the second support frame (4) is fixedly arranged at one side of the first support plate (102) and the second support plate (103), the push block (401) is slidably arranged at one side of the second support frame (4) close to the first support plate (102), the push block (401) is fixedly connected with one end of the first sliding plate (201), the L-shaped frame (402) is fixedly arranged at one side of the second support frame (4) close to the third support plate (104), one end of the L-shaped frame (402) is fixedly connected with the third support plate (104), the third cylinder (403) is fixedly arranged at one side of the L-shaped frame (402) far from the base (1), the third air cylinder (403) penetrates through two sides of the L-shaped frame (402), the bent rod (404) is fixedly mounted on an expansion rod of the third air cylinder (403), the buffer mechanism is in sliding connection with one side of the bent rod (404), one side of the gear rack (405) is in sliding connection with the third support plate (104), one ends of the two baffles (406) are fixedly connected with one side of the third support plate (104), and the other ends of the two baffles (406) are fixedly connected with one side, close to the third support plate (104), of the second support frame (4).

5. A food packaging apparatus according to claim 4, wherein the cushioning mechanism comprises a pressure plate (4031), a support bar (407) and a spring (408), the support bar (407) is slidably mounted on one side of the curved bar (404), the pressure plate (4031) is fixedly mounted on one end of the support bar (407) remote from the curved bar (404), the spring (408) is fitted over the support bar (407), one end of the spring (408) is fixedly connected to one side of the curved bar (404), and the other end of the spring (408) is fixedly connected to one side of the pressure plate (4031).

6. The food packaging device according to claim 5, further comprising a conveying mechanism, wherein the conveying mechanism comprises shaft rods (5), rotating drums (501), ratchets (502), rotating frames (5021), conveying belts (503) and partition plates (504), two sides of the two shaft rods (5) are respectively and rotatably arranged on two sides of the second supporting plate (103) and the third supporting plate (104), one of the shaft rods (5) is in sliding connection with a groove formed in one side of the third supporting plate (104) close to the rack (405), the two rotating drums (501) are respectively and fixedly arranged at the middle positions of the two shaft rods (5), the conveying belts (503) are wound on the two rotating drums (501), one side of the shaft rod (5) close to the rack (405) is fixedly provided with the rotating frame (5021), the ratchets (502) are slidably arranged on the outer side of the rotating frame (5021), and the ratchets (502) are meshed with the rack (405), a plurality of pairs of partition plates (504) are distributed on the conveying belt (503).

7. A food packaging apparatus as claimed in claim 6, wherein the two flaps (406) are provided with a strip of glue (4061) on one side of their inner portion to temporarily support the lid as it is fed over the box containing the biscuits to ensure that the lid is correctly fastened to the box.

8. A food packaging unit according to claim 7, characterized in that the ratchet wheel (502) is shaped with straight teeth on the outside and ratchet teeth on the inside, which allows a stroke change and controls the rotation of the conveyor belt (503).