Food packaging machine capable of sterilizing

Abstract

The invention relates to the field of production of food-grade vacuum packaging machines, and discloses a food packaging machine capable of sterilizing, through structures such as a first lifting air cylinder and the like, the ultraviolet sterilization effect on food is ensured, and a plurality of ultraviolet lamps indirectly connected with a second lifting air cylinder can be controlled to descend to a proper height; the packaging bag and food in the packaging bag are further sterilized, self-adaptive sterilization can be carried out according to the sizes of the food and the packaging bag, energy waste of an ultraviolet lamp can be avoided, the sterilization effect can be ensured, the two clamping plates at the opposite positions get close to each other through the clamping motor so as to clamp the food or the packaged packaging bag, and the packaging bag is convenient to use. According to the multi-face sterilization packaging machine, the rotating base rotates integrally through operation of the rotating motor, so that food or packaging bags are driven to rotate, multi-face sterilization is achieved, the sterilization effect is further improved, packaging bags with different external characteristics are sealed through structures such as an electric sliding rail, and the practicability of the packaging machine is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the production field of food-grade vacuum packaging machines, in particular to a sterilizable food packaging machine. BACKGROUND

[0002] Food vacuum packaging is to pack food into a packaging bag, and then extract the air in the packaging bag. After reaching the predetermined vacuum degree, the sealing process is completed. In the food industry, vacuum packaging is widely used. Various cooked products such as chicken legs, ham, sausages, grilled fish fillets, beef jerky, etc. Pickled products such as various pickles and bean products, preserved fruits, and various foods that need to be preserved are increasingly using vacuum packaging. The shelf life of food vacuum-packed food is long, which greatly extends the shelf life of food.

[0003] In the prior art, the sterilizable food packaging machine disclosed in the Chinese patent document with publication number CN112078862B uses ultraviolet irradiation sterilization and high-temperature instantaneous steam sterilization to sterilize the food, thereby improving the shelf life and safety of the food. The signal transmission from the infrared displacement sensor and the temperature detector to the main controller facilitates the control of the displacement speed of the conveyor belt and the first heater, improving the overall working precision and thus the sterilization performance. Although it has a certain sterilization effect, it still has the following disadvantages: first, for products with different thicknesses or heights, the ultraviolet irradiation height is fixed, resulting in different sterilization effects for products with different thicknesses. Second, when food is transported and sterilized with the conveyor belt, the food position cannot be turned over, which prevents multi-angle and multi-directional irradiation sterilization and affects the sterilization effect. Therefore, we disclose a sterilizable food packaging machine to meet the sterilization needs of food. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a sterilizable food packaging machine with high intelligence and other advantages, which solves the problems of poor sterilization effect during food packaging in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a sterilizable food packaging machine, comprising a mounting frame and a conveyor belt, the mounting frame comprises a mounting frame and an operation box connected thereto, the operation box is connected to the top of the mounting frame, the mounting frame is provided with a driving assembly for driving the conveyor belt to rotate, the driving assembly comprises a driving motor and a transmission chain connected thereto, the operation box is further provided with an intelligent assembly, the intelligent assembly can identify the external characteristics of the food and the specific position of the food in the mounting frame, and the mounting frame is further provided with a lifting assembly capable of driving a plurality of ultraviolet lamps to lift, and the mounting frame is provided with a turnover assembly capable of turning over the food packaging bag.

[0006] Preferably, the driving assembly further comprises a plurality of tensioning rollers corresponding to positions, a plurality of rotating shafts are rotatably sleeved on the mounting frame, the same transmission belt is tensioned on the plurality of rotating shafts, and the driving motor is further fixedly installed on the mounting frame. One end of the output shaft of the driving motor and one end of the plurality of corresponding rotating shafts are fixedly sleeved with sprockets, and the same transmission chain is connected between the two sprockets in the same relative position. The mounting frame is further rotatably installed with the tensioning roller, and the tensioning roller is used to improve the tensioning degree of the transmission belt.

[0007] Preferably, the mounting frame is further fixedly installed with a vacuum pump, the vacuum pump is communicated with a vacuum pipe at an input end, the vacuum pump extracts the gas in the food packaging bag through the vacuum pipe, the other end of the vacuum pipe penetrates through the operation box and extends into the operation box, the end of the vacuum pipe extending into the operation box is communicated with a connecting pipe, and a sealing assembly for sealing the packaging bag is arranged on the connecting pipe.

[0008] Preferably, the intelligent assembly comprises an identification instrument, a scanner and a positioning instrument, one end of the operation box corresponding to the food feeding is provided with the identification instrument for identifying the size of the food, and the inner walls of the two sides of the operation box are both fixedly installed with vertically connected plates corresponding to positions, one of the vertically connected plates is fixedly installed with the scanner for identifying the external features and the position of the food packaging bag, and the operation box is further provided with two positioning instruments for judging the position and thickness of the food packaging bag. The vertically connected plates on the two sides are both installed with a bagging assembly for bagging the food. The operation box is further installed with a controller electrically connected with the intelligent assembly.

[0009] Preferably, the vertically connected plates on the two sides are both fixedly installed with guide strips, the same transmission chain is connected between the two sprockets in the same relative position, the operation box is further fixedly installed with auxiliary supports on the top, the auxiliary supports are fixedly sleeved with two electric telescopic rods corresponding to positions, and the output ends of the two electric telescopic rods are respectively connected with the corresponding lifting doors.

[0010] Preferably, the lifting assembly comprises a first lifting cylinder and a second lifting cylinder, the operation box is further fixedly installed with two first fixed bases corresponding to positions on the top, the first lifting cylinder and the second lifting cylinder are respectively fixedly sleeved in the two first fixed bases, the output ends of the first lifting cylinder and the second lifting cylinder are both fixedly connected with first cylinder telescopic rods, the bottom ends of the two first cylinder telescopic rods are both fixedly connected with a plurality of uniformly distributed ultraviolet lamps through a connecting plate, and the ultraviolet lamps are used for ultraviolet sterilization of the food.

[0011] Preferably, one of the vertical webs is fixedly provided with an electric sliding rail, and a matched electric sliding block is sleeved on the electric sliding rail, and the connecting pipe is connected to the electric sliding block through a connecting block.

[0012] Preferably, the turnover assembly further comprises turnover cylinders, two second fixed bases corresponding in position are fixedly arranged on one side of the operation box, a turnover cylinder is fixedly sleeved in each of the second fixed bases, a second cylinder telescopic rod is fixedly connected to the output end of each of the turnover cylinders, a connecting disc is fixedly connected to the other end of each of the second cylinder telescopic rods, and the two position detectors are fixedly arranged on the corresponding connecting discs, respectively. A rotary motor is fixedly connected to each of the connecting discs, a rotating seat is fixedly connected to one end of the output shaft of each of the rotary motors, a clamping motor is fixedly arranged on each of the rotating seats, a double-screw rod is fixedly connected to one end of the output shaft of each of the clamping motors through a shaft coupling, and the double-screw rod is provided with a double screw thread and is rotatably sleeved on the corresponding rotating seat. A T-shaped sliding groove is formed in each of the rotating seats, and two matched clamping plates are rotatably sleeved in each of the T-shaped sliding grooves.

[0013] Preferably, an anti-skid groove for clamping is formed in each of the clamping plates.

[0014] Compared with the prior art, the present application provides a sterilizable food packaging machine, which has the following beneficial effects: 1. The sterilizable food packaging machine scans and transmits the external characteristics of the food to the controller for analysis, thereby determining the running degree of the first lifting cylinder, and then driving the multiple ultraviolet lamps indirectly connected thereto to move downward by a certain distance through the first cylinder telescopic rod on the first lifting cylinder, so as to ensure the ultraviolet sterilization effect on the food. At the same time, after the packaging and sealing treatment of the bagging assembly and the vacuum pump, the second lifting cylinder is controlled to operate according to the confirmation of the thickness and height of the packaging bag by the intelligent assembly, and then the multiple ultraviolet lamps indirectly connected to the second lifting cylinder are controlled to lower to an appropriate height, so as to further sterilize the packaging bag and the food inside, thereby realizing self-adaptive sterilization according to the size of the food and the packaging bag, avoiding waste of ultraviolet lamp energy, and ensuring the sterilization effect.

[0015] 2、The food packaging machine can be sterilized, the positioner on the corresponding position is used for identifying the external characteristics of the food or the packaging bag and the position information, and the obtained information is sent to the controller for analysis and reference, then the reciprocating operation of the conveying belt is matched, the corresponding turnover cylinder is controlled to operate, the clamping plates are made to approach or move away from the food, the two clamping plates in the relative position are made to approach each other by the clamping motor to clamp the food or the packaging bag which has been packaged, the rotating motor is operated to make the rotating seat rotate as a whole, and the food or the packaging bag is driven to rotate, so that multi-surface sterilization is realized, and the sterilization effect is further improved.

[0016] 3、The food packaging machine can be sterilized, the positioner on the corresponding position is used for identifying the external characteristics of the food or the packaging bag and the position information, and the obtained information is sent to the controller for analysis and reference, then the reciprocating operation of the conveying belt is matched, the corresponding turnover cylinder is controlled to operate, the clamping plates are made to approach or move away from the food, the two clamping plates in the relative position are made to approach each other by the clamping motor to clamp the food or the packaging bag which has been packaged, the rotating motor is operated to make the rotating seat rotate as a whole, and the food or the packaging bag is driven to rotate, so that multi-surface sterilization is realized, and the sterilization effect is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a first perspective three-dimensional structure schematic view of the application. Figure 2 It is a second perspective three-dimensional structure schematic view of the application. Figure 3 It is a part of internal three-dimensional structure schematic view of the application. Figure 4 It is a mounting frame three-dimensional structure schematic view of the application. Figure 5 It is an internal three-dimensional structure schematic view of the operation box of the application. Figure 6 It is another perspective three-dimensional structure schematic view of the internal operation box of the application. Figure 7 It is a turnover assembly three-dimensional structure schematic view of the application.

[0018] In the diagram: 1. Mounting frame; 2. Conveyor belt; 3. Drive motor; 4. Transmission chain; 5. Control box; 6. Vacuum pump; 7. Vacuum tube; 8. Vertical connecting plate; 9. Scanner; 10. Guide bar; 11. Electric telescopic rod; 12. Lifting door; 13. First fixed base; 14. First lifting cylinder; 15. Second lifting cylinder; 16. Connecting plate; 17. Ultraviolet lamp; 18. Electric slide rail; 19. Connecting pipe; 20. Sealing assembly; 21. Second fixed base; 22. Tilting cylinder; 23. Connecting plate; 24. Positioner; 25. Controller; 26. Rotary motor; 27. Rotating seat; 28. Clamping motor; 29. ​​Clamping plate; 30. Bidirectional screw; 31. Anti-slip groove; 32. Identifier. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a sterilizable food packaging machine.

[0021] In one typical implementation of this application, such as Figures 1-7 As shown, a sterilizable food packaging machine includes a mounting frame and a conveyor belt 2. The mounting frame includes a mounting bracket 1 and an operation box 5 connected to each other. The operation box 5 is connected to the top of the mounting bracket 1. The mounting bracket 1 is equipped with a drive assembly for driving the conveyor belt 2 to rotate. The drive assembly includes a drive motor 3 and a transmission chain 4 connected to each other. The operation box 5 is also equipped with an intelligent component that can identify the external features of the food and the specific position of the food within the mounting bracket 1. The mounting bracket 1 is also equipped with a lifting assembly that can drive multiple ultraviolet lamps 17 to achieve lifting and lowering. The mounting bracket 1 is also equipped with a flipping assembly that can flip the food packaging bag.

[0022] As one embodiment of this example, the drive assembly also includes multiple tensioning rollers at corresponding positions. Multiple rotating shafts are rotatably sleeved on the mounting frame 1. The same conveyor belt 2 is tensioned on the multiple rotating shafts. A drive motor 3 is also fixedly installed on the mounting frame 1. A sprocket is fixedly sleeved on one end of the output shaft of the drive motor 3 and one end of the multiple corresponding rotating shafts. The same transmission chain 4 is connected to two sprockets at the same relative position. In this embodiment, a tension roller is also rotatably mounted on the mounting frame 1. The tension roller is used to increase the tension of the conveyor belt 2. By setting the tension roller, the tension of the conveyor belt 2 is maintained.

[0023] As an embodiment in the present embodiment, the mounting frame 1 is also fixedly installed with a vacuum pump 6, the input end of the vacuum pump 6 is communicated with a vacuum pipe 7, the vacuum pump 6 extracts the gas in the food packaging bag through the vacuum pipe 7, the other end of the vacuum pipe 7 penetrates through the operation box 5 and extends into the operation box 5, the end of the vacuum pipe 7 extending into the operation box 5 is communicated with a connecting pipe 19, and a sealing assembly 20 for sealing the packaging bag is arranged on the connecting pipe 19. By arranging the sealing assembly 20, the food packaging bag after vacuumizing is sealed.

[0024] As an embodiment in the present embodiment, the intelligent assembly includes an identifier 32, a scanner 9 and a positioner 24, one end of the operation box 5 corresponding to the food feeding is provided with the identifier 32 for identifying the size of the food, and the inner walls of the two sides of the operation box 5 are both fixedly installed with vertically connected plates 8 corresponding in position, one of the vertically connected plates 8 is fixedly installed with the scanner 9 for identifying the external features of the food packaging bag and the position thereof, and the operation box 5 is also provided with two positioners 24 for judging the position and thickness of the food packaging bag. The vertically connected plates 8 on the two sides are both installed with bagging assemblies capable of bagging the food. In the present embodiment, the operation box 5 is also installed with a controller 25 electrically connected with the intelligent assembly, and by arranging the intelligent assembly, the controller 25 can control the operation of the corresponding other assemblies.

[0025] As an embodiment in the present embodiment, the side of each of the two vertically connected plates 8 close to each other is fixedly installed with a guide strip 10, the same relative position on the two guide strips 10 is slidably sleeved with the same lifting door 12, the top of the operation box 5 is fixedly installed with an auxiliary support, the auxiliary support is fixedly sleeved with two electric telescopic rods 11 corresponding in position, the output ends of the two electric telescopic rods 11 are respectively connected with the corresponding lifting doors 12, by arranging the lifting doors 12, the relative sealing of the space during vacuumizing is realized in cooperation with the electric telescopic rods 11, and the probability of bacterial contamination is reduced.

[0026] As an embodiment in the present embodiment, the lifting assembly includes a first lifting cylinder 14 and a second lifting cylinder 15, the top of the operation box 5 is fixedly installed with two first fixed bases 13 corresponding in position, the first lifting cylinder 14 and the second lifting cylinder 15 are respectively fixedly sleeved in the two first fixed bases 13, the output ends of the first lifting cylinder 14 and the second lifting cylinder 15 are both fixedly connected with first cylinder telescopic rods, the bottom ends of the two first cylinder telescopic rods are both fixedly connected with a plurality of uniformly distributed ultraviolet lamps 17 through a connecting plate 16, the ultraviolet lamps 17 are used for ultraviolet sterilization of the food, by arranging the lifting assembly, the irradiation height of the ultraviolet lamps 17 can be adaptively adjusted according to the thickness of the food, and the sterilization effect is ensured.

[0027] As an embodiment in the embodiment, one vertical connecting plate 8 is fixedly installed with an electric sliding rail 18, a matched electric sliding block is sleeved on the electric sliding rail 18, and a connecting pipe 19 is connected to the electric sliding block through a connecting block. The flexible connecting pipe 19 can make the electric sliding block drive one end of the connecting pipe 19 to be connected with the food packaging bag.

[0028] As an embodiment in the embodiment, the turnover assembly further comprises a turnover cylinder 22, two second fixed bases 21 corresponding in position are fixedly installed on one side of the operation box 5, the turnover cylinder 22 is fixedly sleeved in each of the two second fixed bases 21, the second cylinder telescopic rod is fixedly connected to the output end of each of the two turnover cylinders 22, the connecting disc 23 is fixedly connected to the other end of each of the two second cylinder telescopic rods, and the positioning instrument 24 is fixedly installed on the corresponding connecting disc 23. In the embodiment, the rotary motor 26 is fixedly connected to each of the two connecting discs 23, the output shaft of each of the two rotary motors 26 is fixedly connected to the rotating seat 27, the clamping motor 28 is fixedly installed on each of the two rotating seats 27, the output shaft of the clamping motor 28 is fixedly connected to the bidirectional screw rod 30 through the shaft coupling, and the bidirectional screw rod 30 is provided with a bidirectional screw thread and is rotatably sleeved on the corresponding rotating seat 27. In the embodiment, the T-shaped sliding groove is formed in each of the two rotating seats 27, the two matched clamping plates 29 are slidably sleeved in the two T-shaped sliding grooves, the clamping plates 29 are arranged, so that, after the clamping motor 28 is rotated, the two clamping plates 29 are driven to be close to each other by the bidirectional screw rod 30 to clamp the food.

[0029] As an embodiment in the embodiment, the anti-skid groove 31 for clamping and preventing skidding is formed in each of the plurality of clamping plates 29, and the clamping effect of the clamping plate 29 is improved by arranging the anti-skid groove 31.

[0030] The working principle of the present application is as follows: when food needs to be sterilized and packaged, the food is placed at one end of the conveying belt 2, the driving motor 3 is turned on to drive the conveying belt 2 to realize the conveying effect, when the food passes through the corresponding position of the identification instrument 32, the external characteristics of the food are scanned by the identification instrument 32 and transmitted to the controller 25 for analysis, so as to determine the running degree of the first lifting cylinder 14, and then the first cylinder telescopic rod on the first lifting cylinder 14 drives the plurality of ultraviolet lamps 17 indirectly connected thereto to move downward by a certain distance, so as to ensure the ultraviolet sterilization effect on the food, at the same time, after the packaging process of the bagging assembly and the vacuum pump 6, according to the confirmation of the thickness and height of the packaging bag by the intelligent assembly, the second lifting cylinder 15 is controlled to operate, and then the plurality of ultraviolet lamps 17 indirectly connected with the second lifting cylinder 15 are controlled to lower to a suitable height, so as to further sterilize the packaging bag and the food inside, and then the self-adaptive sterilization according to the size of the food and the packaging bag is realized, which can avoid the waste of energy of the ultraviolet lamp 17 and ensure the sterilization effect.

[0031] When the food and the packaging bag are sterilized by ultraviolet rays, the positioner 24 on the corresponding position identifies the external characteristics of the food or the packaging bag and the position information, and sends the obtained information to the controller 25 for analysis and reference, and then cooperates with the reciprocating operation of the conveying belt 2 to control the corresponding turnover cylinder 22 to operate, so as to realize the approach or away of the corresponding clamping plate 29 to the food, and make the two clamping plates 29 on the relative position close to each other to clamp the food or the packaging bag which has been packaged, so as to make the rotating seat 27 rotate as a whole by the operation of the rotating motor 26, so as to drive the food or the packaging bag to rotate, so as to realize multi-surface sterilization and further improve the sterilization effect.

[0032] When the food is packaged by the first lifting cylinder 14 and the bagging assembly, it is transported between the two lifting doors 12 by the action of the conveying belt 2, and the specific position of the food at this time is obtained by the scanner 9, and the sealing position on the packaging bag is identified, the electric sliding block on the electric sliding rail 18 is controlled by the controller 25 to cooperate with the action of the conveying belt 2 to drive one end of the connecting pipe 19 to be connected with the sealing position on the packaging bag, and the vacuum pump 6 and the vacuum pipe 7 are used to realize the vacuumization of the packaging bag, and then the sealing assembly 20 is used to seal the vacuumized packaging bag, so as to realize the sealing of the packaging bag with different external characteristics by cooperating with the reciprocating rotation of the conveying belt 2, and further expand the practicability of the packaging machine.

[0033] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sterilizable food packaging machine comprising a mounting frame and a conveyor belt (2), said mounting frame comprising a mounting stand (1) and an operating box (5) connected to each other, said operating box (5) being connected to the top of said mounting stand (1), characterized in that: The mounting rack (1) is provided with a driving assembly for driving the rotation of the conveying belt (2), which comprises a driving motor (3) and a transmission chain (4) connected thereto. The operating box (5) is also provided with an intelligent assembly which can identify the external characteristics of the food and the specific position of the food in the mounting rack (1), and the mounting rack (1) is also provided with a lifting assembly which can drive a plurality of ultraviolet lamps (17) to lift, and the mounting rack (1) is provided with a turnover assembly which can turn over the food packaging bag.

2. A sterilizable food packaging machine according to claim 1, characterized in that: The driving assembly further comprises a plurality of position corresponding tensioning rollers, a plurality of rotating shafts are rotatably connected to the mounting rack (1), the same conveying belt (2) is tensioned on the plurality of rotating shafts, and the driving motor (3) is fixedly installed on the mounting rack (1), one end of the output shaft of the driving motor (3) and one end of each of the plurality of rotating shafts are fixedly sleeved with a sprocket, and the same transmission chain (4) is connected to the two sprockets in the same relative position. The mounting rack (1) is also provided with the tensioning rollers which are rotatably installed on the mounting rack (1) and used to improve the tensioning degree of the conveying belt (2).

3. A sterilizable food packaging machine according to claim 1, characterized in that: The mounting rack (1) is also provided with a vacuum pump (6) fixedly installed thereon, the input end of the vacuum pump (6) is communicated with a vacuum pipe (7), the vacuum pump (6) extracts the gas in the food packaging bag through the vacuum pipe (7), the other end of the vacuum pipe (7) penetrates through the operating box (5) and extends into the operating box (5), the end of the vacuum pipe (7) extending into the operating box (5) is communicated with a connecting pipe (19), and the connecting pipe (19) is provided with a sealing assembly (20) for sealing the packaging bag.

4. A sterilizable food packaging machine according to claim 3, characterized in that: The intelligent assembly comprises an identification instrument (32), a scanner (9) and a positioning instrument (24), one end of the operating box (5) corresponding to the food inlet is provided with the identification instrument (32) for identifying the size of the food, and the inner walls of the two sides of the operating box (5) are both fixedly installed with position corresponding vertical connecting plates (8), one of the vertical connecting plates (8) is fixedly installed with the scanner (9) for identifying the external characteristics of the food packaging bag and the position thereof, and the operating box (5) is also provided with two positioning instruments (24) for judging the position and thickness of the food packaging bag. The vertical connecting plates (8) on the two sides are both installed with bagging assemblies which can bag the food; The operating box (5) is also provided with a controller (25) electrically connected with the intelligent assembly.

5. A sterilizable food packaging machine according to claim 4, characterized in that: The sides of the two vertical connecting plates (8) close to each other are both fixedly installed with guide strips (10), the same relative positions of the two guide strips (10) are both slidably sleeved with the same lifting door (12), the top of the operating box (5) is fixedly installed with an auxiliary support, the auxiliary support is fixedly sleeved with two position corresponding electric telescopic rods (11), and the output ends of the two electric telescopic rods (11) are respectively connected with the corresponding lifting doors (12).

6. A sterilizable food packaging machine according to claim 5, characterized in that: The lifting assembly comprises a first lifting cylinder (14) and a second lifting cylinder (15), the top of the operation box (5) is fixedly provided with two first fixed bases (13) corresponding in position, the first lifting cylinder (14) and the second lifting cylinder (15) are fixedly sleeved in the two first fixed bases (13) respectively, the output ends of the first lifting cylinder (14) and the second lifting cylinder (15) are fixedly connected with first cylinder telescopic rods, the bottom ends of the two first cylinder telescopic rods are fixedly connected with a plurality of uniformly distributed ultraviolet lamps (17) through connecting plates (16), and the ultraviolet lamps (17) are used for ultraviolet sterilization of food.

7. A sterilizable food packaging machine according to claim 5, characterized in that: One of the vertical connecting plates (8) is fixedly provided with an electric sliding rail (18), a matched electric sliding block is slidably sleeved on the electric sliding rail (18), and the electric sliding block is connected with the connecting pipe (19) through a connecting block.

8. A sterilizable food packaging machine according to claim 6, characterized in that: The overturning assembly further comprises overturning cylinders (22), two second fixed bases (21) corresponding in position are fixedly arranged on one side of the operation box (5), the overturning cylinders (22) are fixedly sleeved in the two second fixed bases (21), the output ends of the two overturning cylinders (22) are fixedly connected with second cylinder telescopic rods, the other ends of the two second cylinder telescopic rods are fixedly connected with connecting discs (23), and the two positioners (24) are fixedly arranged on the corresponding connecting discs (23) respectively. The two connecting discs (23) are fixedly connected with rotary motors (26), one ends of output shafts of the two rotary motors (26) are fixedly connected with rotating bases (27), clamping motors (28) are fixedly arranged on the two rotating bases (27) respectively, one end of an output shaft of the clamping motor (28) is fixedly connected with a bidirectional screw rod (30) through a shaft coupling, and the bidirectional screw rod (30) is provided with bidirectional threads and is rotatably sleeved on the corresponding rotating base (27). T-shaped sliding grooves are formed in the two rotating bases (27), and two matched clamping plates (29) are slidably sleeved in the two T-shaped sliding grooves.

9. A sterilizable food packaging machine according to claim 8, characterized in that: Anti-skid grooves (31) for clamping and preventing skidding are formed in the plurality of clamping plates (29).

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