Multi-variety self-adaptive carton opening machine

By designing multiple types of adaptive carton box opening machines, using electrically controlled adjustment suction cups and clamping baffles to achieve rapid switching and adaptation of carton specifications, the problem of the existing carton box opening machines being replaced for too long, ensuring efficient and stable operation of the equipment in large-scale production.

CN223200427UActive Publication Date: 2025-08-08GUANG DONG GUO GONG ZHI NENG KE JI YOU XIAN GONG SI
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Patent Information

Application Number
CN202422595995.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-08-08
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

It takes too long to replace the carton variety of existing carton opening machines, and cartons of different sizes need to be manually adjusted, resulting in slow box opening speed and single variety.

Method used

A multi-variety adaptive carton box opening machine is designed, using electrically adjustable lower suction cup, upper suction cup, clamping baffle and carton tilt push plate, so as to quickly switch and adapt the carton specifications through automatic identification system and servo control system.

Benefits of technology

It realizes fast, simple and precise operation of carton specification switching, maintains efficient and stable operation of equipment during the rapid switching process, meets the diversified needs of large-scale production and ensures production efficiency.

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Abstract

The utility model discloses a multi-variety self-adaptive carton box opening machine. A carton box placing mechanism, a carton box conveying mechanism and a carton box opening mechanism are arranged on a machine frame of the multi-variety self-adaptive carton box opening machine. The carton placing mechanism is used for placing cartons; the carton conveying mechanism is used for sucking cartons and conveying the cartons to a carton placing platform of the carton opening mechanism; the carton opening mechanism comprises a lower suction cup, an upper suction cup, a clamping baffle and a carton folding push plate, wherein the moving stroke of the lower suction cup can be adjusted in an electric control mode. The lower sucking disc is used for adsorbing and fixing a carton on the carton placing platform; the upper suction cup is used for sucking a carton to be erected. The opposite movement of the two clamping baffles is used for clamping and maintaining the vertical state of the carton. The four carton folding push plates are respectively used for pushing four turned edges of the erected carton to be folded inwards; after the scheme is adopted, the problem that an existing box opening machine needs too long time to replace the types of cartons can be practically solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of carton opening machines, in particular to a multi-variety self-adaptive carton opening machine. Background Art

[0002] A carton opener is a type of automated packaging equipment widely used in various industrial production lines, particularly in the logistics, food, pharmaceutical, and electronics industries. Its primary function is to automatically unfold folded cartons into a standardized box. It is typically used in conjunction with other equipment such as carton sealers and case packers.

[0003] However, the existing carton opening machines are not only slow in opening speed, but also have a single type of carton opening. Different sizes of cartons require manual adjustment, and the installation position and installation angle of the structure need to be manually adjusted, resulting in a long time to change the type of carton. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-variety self-adaptive carton opening machine to solve the problem that it takes too long to change the carton variety in the existing carton opening machine.

[0005] In order to solve the above technical problems, the utility model provides a multi-variety adaptive carton opener, wherein a carton placing mechanism, a carton conveying mechanism and a carton opening mechanism are provided on the frame of the multi-variety adaptive carton opener; the carton placing mechanism is used to place cartons; the carton conveying mechanism is used to suck the cartons from the carton placing mechanism and deliver them to the carton placing platform of the carton opening mechanism; the carton opening mechanism includes a lower suction cup, an upper suction cup, a clamping baffle and a carton folding push plate whose moving stroke can be electrically adjusted; the lower suction cup is arranged on the carton placing mechanism in a manner that can be lifted and lowered The carton is placed on the platform, and the lower suction cup is used to absorb and fix the carton on the carton placement platform; the upper suction cup is provided on the top of the carton placement platform in a manner that can be lifted and lowered, and the upper suction cup is used to absorb the carton and stand it up; the two clamping baffles are provided on the carton placement platform in a manner that can move toward and away from each other, and the two clamping baffles move toward each other to clamp and maintain the carton in an upright state; the four carton folding push plates are respectively aligned with the four flanges of the standing carton, and the four carton folding push plates are respectively used to push the four flanges of the standing carton to be turned inward and folded.

[0006] In one embodiment, the carton placement mechanism includes a first transverse guide rail, a second transverse guide rail, a first transverse arm and a second transverse arm; the four first transverse guide rails are respectively arranged at the upper and lower sides of the opposite sides of the frame, and two first transverse arms are slidably installed between the two first transverse guide rails arranged up and down on each side of the frame; the second transverse guide rail is connected up and down between every two first transverse arms arranged at the opposite sides of the frame, and two second transverse arms are slidably installed between the two second transverse guide rails arranged up and down; a carton pallet is provided at the lower part of the second transverse arm.

[0007] In one embodiment, the frame is provided with a tensioning wheel and a synchronous belt tensioned between the two tensioning wheels on one side where two of the first transverse guide rails are provided; the lateral extension direction of the synchronous belt is consistent with the arrangement track direction of the first transverse guide rails, and the upper belt segment and the lower belt segment of the synchronous belt are connected with connecting plates, and the two connecting plates are respectively connected and fixed to the two first transverse arms.

[0008] In one embodiment, the carton conveying mechanism includes a linear movable slide rail, a carton suction cylinder slidably mounted on the linear movable slide rail, and a carton suction suction cup provided on the carton suction cylinder; the conveying track of the linear movable slide rail is between the carton placement mechanism and the carton placement platform; the carton suction cylinder is used to control the lifting and lowering movement of the carton suction suction cup; the carton suction suction cup is used to suck the carton from the carton placement mechanism.

[0009] In one embodiment, the carton placement platform is provided with a movable groove for the carton suction cup to move in and out.

[0010] In one embodiment, the lower suction cup is aligned with the movable groove, and the lower suction cup is connected to a lower suction cup lifting mechanism, and the lower suction cup lifting mechanism is used to control the lower suction cup to move toward and away from the movable groove; the carton folding push plate includes a carton lower folding push plate, and the carton lower folding push plate is hinged on the lower suction cup lifting mechanism, and the carton lower folding push plate is connected to a carton lower folding cylinder, and the carton lower folding cylinder is used to control the carton lower folding push plate to flip and push the lower flange of the carton to fold inward.

[0011] In one embodiment, the frame is provided with an upper suction cup moving mechanism, the upper suction cup moving mechanism is connected to the upper suction cup, and the upper suction cup moving mechanism is used to control the upper suction cup to move horizontally and up and down; the carton folding push plate includes a carton upper folding push plate, the carton upper folding push plate is hinged to the upper suction cup moving mechanism, the carton upper folding push plate is connected to a carton upper folding cylinder, and the carton upper folding cylinder is used to control the carton upper folding push plate to flip and push the upper flange of the carton to fold inward.

[0012] In one embodiment, the carton folding push plate includes a carton left folding push plate, and the carton left folding push plate is connected to a carton left folding cylinder, and the carton left folding cylinder is used to control the carton left folding push plate to obliquely push the left flange of the carton to fold inward.

[0013] In one embodiment, the carton folding push plate includes a carton right folding push plate, and the carton right folding push plate is connected to a carton right folding cylinder, and the carton right folding cylinder is used to control the carton right folding push plate to obliquely push the right flange of the carton to fold inward.

[0014] The beneficial effects of the utility model are as follows:

[0015] Since the carton opening mechanism includes a lower suction cup, an upper suction cup, a clamping baffle and a carton folding push plate whose moving stroke can be electrically adjusted, and the carton is opened by these components, it is only necessary to pre-store the setting parameters of multiple carton specifications inside the equipment, and the operator can select the current carton specification through the control panel or the automatic recognition system.

[0016] The system can then automatically adjust the movement of the lower suction cup, upper suction cup, clamping baffle and carton folding push plate to adapt to cartons of different sizes. Therefore, switching carton specifications only requires simple operations, and the operation process is simple, fast and accurate.

[0017] Moreover, the equipment can maintain an efficient and stable working state during the rapid switching of carton types. Through the servo control system and precise mechanical design, the equipment can quickly resume normal operating speed after completing the specification conversion and maintain stable carton opening quality. This feature enables the equipment to meet diverse needs and ensure production efficiency in mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a rear view structural diagram provided by an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of the carton placement mechanism;

[0021] Figure 3 yes Figure 1A schematic diagram of the enlarged structure of the carton conveying mechanism;

[0022] Figure 4 This is a front structural diagram provided by an embodiment of the utility model;

[0023] Figure 5 yes Figure 4 An enlarged structural diagram of the carton opening mechanism;

[0024] Figure 6 yes Figure 4 An enlarged structural diagram of the carton placement mechanism.

[0025] The reference numerals are as follows:

[0026] 10. Carton placement mechanism; 111. First transverse guide rail; 112. Second transverse guide rail; 121. First transverse arm; 122. Second transverse arm; 13. Carton pallet;

[0027] 20. Carton conveying mechanism; 21. Linear moving slide rail; 22. Carton suction cylinder; 23. Carton suction cup;

[0028] 30. Carton opening mechanism; 31. Carton placement platform; 311. Moving trough; 32. Lower suction cup; 321. Lower suction cup lifting mechanism; 33. Upper suction cup; 331. Upper suction cup moving mechanism; 34. Clamping baffle; 351. Carton lower folding push plate; 352. Carton upper folding push plate; 353. Carton left folding push plate; 354. Carton right folding push plate; 361. Carton lower folding cylinder; 362. Carton upper folding cylinder; 363. Carton left folding cylinder; 364. Carton right folding cylinder;

[0029] 40. Frame; 41. Tensioner; 42. Synchronous belt; 43. Connecting plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] The utility model provides a multi-variety adaptive carton opening machine, which is implemented as follows: Figure 1 、 Figure 4 and Figure 5As shown, a carton placing mechanism 10, a carton conveying mechanism 20 and a carton opening mechanism 30 are provided on a frame 40 of a multi-variety adaptive carton opening machine; the carton placing mechanism 10 is used to place cartons; the carton conveying mechanism 20 is used to suck cartons from the carton placing mechanism 10 and convey them to the carton placing platform 31 of the carton opening mechanism 30; the carton opening mechanism 30 includes a lower suction cup 32, an upper suction cup 33, a clamping baffle 34 and a carton folding push plate, the movement stroke of which can be electrically adjusted; the lower suction cup 32 is arranged on the carton placing platform 31 in a manner that can be lifted and lowered. 1, the lower suction cup 32 is used to absorb and fix the carton on the carton placement platform 31; the upper suction cup 33 is provided above the carton placement platform 31 in a manner that can be lifted and lowered, and the upper suction cup 33 is used to absorb the carton to stand up; two clamping baffles 34 are provided on the carton placement platform 31 in a manner that can move toward and away from each other, and the two clamping baffles 34 move toward each other to clamp and maintain the carton in an upright state; the four carton folding push plates are respectively aligned with the four flanges of the standing carton, and the four carton folding push plates are respectively used to push the four flanges of the standing carton to turn inward and fold.

[0032] During application, the cartons will be stacked in a flat state and placed in the carton placement mechanism 10. The carton conveying mechanism 20 will suck the cartons placed at the bottom and send them to the carton placement platform 31. Then the lower suction cup 32 will adsorb and fix the bottom of the carton, and the upper suction cup 33 will adsorb and fix the upper part of the carton. The carton can be erected by rising the upper suction cup 33. After the carton is erected, the two clamping baffles 34 move toward each other to clamp the left and right sides of the carton to maintain the carton in an upright state. Finally, the four carton folding push plates push the four flanges of the carton inward to complete the entire operation.

[0033] Since the carton opening mechanism 30 includes a lower suction cup 32, an upper suction cup 33, a clamping baffle 34 and a carton folding push plate whose moving stroke can be electrically adjusted, and the carton is opened by these components, it is only necessary to pre-store the setting parameters of multiple carton specifications inside the device, and the operator can select the current carton specification through the control panel or the automatic recognition system.

[0034] The system can then automatically adjust the movement stroke of the lower suction cup 32, the upper suction cup 33, the clamping baffle 34 and the carton folding push plate to adapt to cartons of different sizes. Therefore, when switching carton specifications, only a simple operation is required to complete it, and there is no need to reinstall and adjust. The operation process is simple, fast and accurate.

[0035] Moreover, the equipment can maintain an efficient and stable working state during the rapid switching of carton types. Through the servo control system and precise mechanical design, the equipment can quickly resume normal operating speed after completing the specification conversion and maintain stable carton opening quality. This feature enables the equipment to meet diverse needs and ensure production efficiency in mass production.

[0036] like Figure 1 、 Figure 2 、 Figure 4 and Figure 6 As shown, this embodiment provides a carton placement mechanism 10 including a first transverse guide rail 111, a second transverse guide rail 112, a first transverse arm 121 and a second transverse arm 122; the four first transverse guide rails 111 are respectively arranged at the upper and lower sides of the opposite sides of the frame 40, and two first transverse arms 121 are slidably installed between the two first transverse guide rails 111 arranged up and down on each side of the frame 40; the second transverse guide rail 112 is connected up and down between each two first transverse arms 121 arranged on the opposite sides of the frame 40, and two second transverse arms 122 are slidably installed between the two second transverse guide rails 112 arranged up and down; the lower part of the second transverse arm 122 is provided with a carton pallet 13.

[0037] After adopting this setting method, by controlling the movement of the two first transverse arms 121 and the two second transverse arms 122, the size of the space enclosed by the two first transverse arms 121 and the two second transverse arms 122 can be adjusted so that this space can be used to accommodate cartons of different sizes, and the cartons placed in this space will be supported on the carton pallet 13, thereby realizing the stacking of multiple cartons.

[0038] like Figure 4 and Figure 6 As shown, this embodiment provides a frame 40 with a tensioning wheel 41 and a synchronous belt 42 tensioned between the two tensioning wheels 41 on one side where two of the first transverse guide rails 111 are provided; the lateral extension arrangement direction of the synchronous belt 42 is consistent with the arrangement track direction of the first transverse guide rail 111, and the upper belt segment and the lower belt segment of the synchronous belt 42 are connected with connecting plates 43, and the two connecting plates 43 are respectively connected and fixed to the two first transverse arms 121.

[0039] After adopting this setting method, once one of the first transverse moving arms 121 moves laterally, the synchronous belt 42 will drive the other first transverse moving arm 121 to move laterally through the connecting plate 43; for example, if one first transverse moving arm 121 moves outward by a distance A, the other first transverse moving arm 121 will also move outward by a distance A. If one first transverse moving arm 121 moves inward by a distance B, the other first transverse moving arm 121 will also move inward by a distance B, thereby ensuring that the placement position of the carton is always centered and will not affect the subsequent operation of the carton.

[0040] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, this embodiment provides a carton conveying mechanism 20 including a linear movable slide rail 21, a carton suction cylinder 22 slidably mounted on the linear movable slide rail 21, and a carton suction suction cup 23 provided on the carton suction cylinder 22; the conveying track of the linear movable slide rail 21 is between the carton placement mechanism 10 and the carton placement platform 31; the carton suction cylinder 22 is used to control the lifting and lowering movement of the carton suction suction cup 23; the carton suction suction cup 23 is used to suck cartons from the carton placement mechanism 10.

[0041] After adopting this setting method, the linear movable slide rail 21 can control the carton suction cylinder 22 and the carton suction suction cup 23 to move together to the bottom of the stacked cartons, and then the carton suction cylinder 22 controls the carton suction suction cup 23 to rise, and the carton suction suction cup 23 can adsorb and fix the carton. At this time, the carton suction cylinder 22 controls the carton suction suction cup 23 to descend, so that a single carton can be pulled out from the stacked state; finally, the linear movable slide rail 21 moves the carton suction cylinder 22 and the carton suction suction cup 23 together to the carton placement platform 31, so that the cartons can be transported.

[0042] like Figure 5 As shown, in this embodiment, a carton placement platform 31 is provided with a moving groove 311 for the carton suction cup 23 to move in and out.

[0043] After adopting this setting method, the moving groove 311 will provide a moving path for the carton suction cylinder 22 and the carton suction suction cup 23, avoiding obstruction of the transportation of the carton and ensuring that the carton can be accurately delivered to the carton placement platform 31.

[0044] like Figure 5 As shown, in this embodiment, a lower suction cup 32 is arranged to be aligned with the movable groove 311, and the lower suction cup 32 is connected to a lower suction cup lifting mechanism 321, and the lower suction cup lifting mechanism 321 is used to control the lower suction cup 32 to move toward and away from the movable groove 311; the carton folding push plate includes a carton lower folding push plate 351, and the carton lower folding push plate 351 is hinged on the lower suction cup lifting mechanism 321, and the carton lower folding push plate 351 is connected to a carton lower folding cylinder 361, and the carton lower folding cylinder 361 is used to control the carton lower folding push plate 351 to flip and push the lower flange of the carton to fold inward.

[0045] After adopting this setting method, once the carton has been delivered to the carton placement platform 31, the lower suction cup lifting mechanism 321 can control the lower suction cup 32 to rise, so as to use the lower suction cup 32 to adsorb and fix the lower part of the carton, thereby facilitating the carton conveying mechanism 20 to release the adsorption of the carton and start the conveying operation of the next carton.

[0046] Moreover, after adopting this setting method, once the carton is in an upright state, the carton bottom folding cylinder 361 can push the carton bottom folding push plate 351 to flip over, thereby applying an inward push force to the bottom flange of the carton, thereby achieving the inward folding of the bottom flange of the carton.

[0047] like Figure 4 and Figure 5 As shown, this embodiment provides an upper suction cup moving mechanism 331 on the frame 40, the upper suction cup moving mechanism 331 is connected to the upper suction cup 33, and the upper suction cup moving mechanism 331 is used to control the upper suction cup 33 to move horizontally and up and down; the carton folding push plate includes a carton upper folding push plate 352, the carton upper folding push plate 352 is hinged on the upper suction cup moving mechanism 331, the carton upper folding push plate 352 is connected to the carton upper folding cylinder 362, and the carton upper folding cylinder 362 is used to control the carton upper folding push plate 352 to flip and push the upper flange of the carton to fold inward.

[0048] After adopting this setting method, once the carton has been delivered to the carton placement platform 31, the upper suction cup moving mechanism 331 will first move the upper suction cup 33 to the top of the carton, and then control the upper suction cup 33 to descend until the upper suction cup 33 adsorbs and fixes the upper part of the carton. Finally, by controlling the upward movement of the upper suction cup 33, the carton can be erected.

[0049] Moreover, after adopting this setting method, once the carton is in an upright state, the carton folding cylinder 362 can push the carton folding push plate 352 to flip over, thereby applying an inward push force to the upper flap of the carton, thereby achieving the inward folding of the upper flap of the carton.

[0050] like Figure 5 As shown, this embodiment provides a carton folding push plate including a carton left folding push plate 353, and the carton left folding push plate 353 is connected to a carton left folding cylinder 363, and the carton left folding cylinder 363 is used to control the carton left folding push plate 353 to push the left flange of the carton inwardly.

[0051] After adopting this setting mode, once the carton has been erected, the carton left folding cylinder 363 can push the carton left folding push plate 353 to move obliquely toward the left flange of the carton, thereby realizing the left flange inward folding operation of the carton.

[0052] like Figure 5 As shown, this embodiment provides a carton folding push plate including a carton right folding push plate 354, and the carton right folding push plate 354 is connected to a carton right folding cylinder 364, and the carton right folding cylinder 364 is used to control the carton right folding push plate 354 to obliquely push the right flange of the carton to fold inward.

[0053] After adopting this setting mode, once the carton has been erected, the carton right folding cylinder 364 can push the carton right folding push plate 354 to move obliquely toward the right flap of the carton, thereby realizing the right flap inward folding operation of the carton.

[0054] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A multi-variety adaptive carton opening machine, characterized in that: The frame of the multi-variety adaptive carton opening machine is provided with a carton placing mechanism, a carton conveying mechanism and a carton opening mechanism; The carton placement mechanism is used to place cartons; The carton conveying mechanism is used to suck the carton from the carton placing mechanism and deliver it to the carton placing platform of the carton opening mechanism; The carton opening mechanism includes a lower suction cup, an upper suction cup, a clamping baffle, and a carton folding push plate, the movement stroke of which can be electrically adjusted; The lower suction cup is arranged below the carton placement platform in a manner that can be lifted and moved, and the lower suction cup is used to absorb and fix the carton on the carton placement platform; The upper suction cup is arranged above the carton placement platform in a manner that can be lifted and lowered, and the upper suction cup is used to suck the carton to stand upright; The two clamping baffles are arranged on the carton placement platform in a manner that they can move toward and away from each other, and the movement of the two clamping baffles toward each other is used to clamp and maintain the carton in an upright state; The four carton folding push plates are respectively aligned with the four flanges of the erected carton, and the four carton folding push plates are respectively used to push the four flanges of the erected carton to be turned inward and folded.

2. The multi-variety adaptive carton opening machine according to claim 1 is characterized in that: The carton placement mechanism includes a first transverse guide rail, a second transverse guide rail, a first transverse arm and a second transverse arm; Four first transverse guide rails are respectively arranged at the upper and lower sides of opposite sides of the frame, and two first transverse arms are slidably installed between the two first transverse guide rails arranged above and below on each side of the frame; The second transverse guide rails are connected up and down between each pair of the first transverse arms disposed on opposite sides of the frame, and two second transverse arms are slidably mounted between the two second transverse guide rails disposed up and down; A carton support plate is provided at the lower portion of the second transverse arm.

3. The multi-variety adaptive carton opening machine according to claim 2 is characterized in that: The frame is provided with a tensioning wheel on one side where two of the first transverse guide rails are provided, and a synchronous belt tensioned between the two tensioning wheels; The lateral extension direction of the synchronous belt is consistent with the layout track direction of the first transverse guide rail. The upper belt segment and the lower belt segment of the synchronous belt are connected with connecting plates, and the two connecting plates are respectively connected and fixed to the two first transverse arms.

4. The multi-variety adaptive carton opening machine according to claim 1 is characterized in that: The carton conveying mechanism includes a linear movable slide rail, a carton suction cylinder slidably mounted on the linear movable slide rail, and a carton suction cup provided on the carton suction cylinder; The conveying track of the linear movable slide rail is between the carton placement mechanism and the carton placement platform; The carton suction cylinder is used to control the lifting and movement of the carton suction cup; The carton suction cup is used to suck the carton from the carton placement mechanism.

5. The multi-variety adaptive carton opening machine according to claim 4 is characterized in that: The carton placement platform is provided with a movable groove for the carton suction cup to move in and out.

6. The multi-variety adaptive carton opening machine according to claim 5, characterized in that: The lower suction cup is aligned with the movable groove, and the lower suction cup is connected to a lower suction cup lifting mechanism, and the lower suction cup lifting mechanism is used to control the lower suction cup to move toward and away from the movable groove; The carton folding push plate includes a carton lower folding push plate, which is hinged on the lower suction cup lifting mechanism. The carton lower folding push plate is connected to a carton lower folding cylinder, which is used to control the carton lower folding push plate to flip and push the lower flange of the carton to fold inward.

7. The multi-variety adaptive carton opening machine according to claim 5, characterized in that: The frame is provided with an upper suction cup moving mechanism, which is connected to the upper suction cup and is used to control the upper suction cup to move horizontally and vertically; The carton folding push plate includes a carton upper folding push plate, which is hinged on the upper suction cup moving mechanism. The carton upper folding push plate is connected to a carton upper folding cylinder, which is used to control the carton upper folding push plate to flip and push the upper flange of the carton to fold inward.

8. The multi-variety adaptive carton opening machine according to claim 5, characterized in that: The carton folding push plate includes a carton left folding push plate, which is connected to a carton left folding cylinder. The carton left folding cylinder is used to control the carton left folding push plate to obliquely push the left flange of the carton to fold inward.

9. The multi-variety adaptive carton opening machine according to claim 5, characterized in that: The carton folding push plate includes a carton right folding push plate, which is connected to a carton right folding cylinder. The carton right folding cylinder is used to control the carton right folding push plate to obliquely push the right flange of the carton to fold inward.