Stacking mechanism for carton production line

Abstract

The application relates to a stacking mechanism for a carton production line, which comprises a feeding conveying part and a stacking conveying part, the feeding conveying part is used for conveying carton boards, a tray is arranged on the stacking conveying part, and the tray is used for preventing stacked carton boards; characterized in that an adsorption mechanism is arranged above the feeding conveying part, the adsorption mechanism is used for adsorbing the carton boards conveyed on the feeding conveying part, a support is arranged above the feeding conveying part and the stacking conveying part, a driving piece is arranged on the support, a lifting piece is arranged on the driving piece; a guide unit is arranged on the support; through cooperation of the feeding conveying part, the stacking conveying part, the adsorption mechanism, the lifting piece, the driving piece and the guide unit, automatic operation of carton board conveying, adsorption, lifting, moving and stacking is realized, manual picking and placing of the carton boards are not needed frequently, and the overall efficiency of carton production is improved.

Description

Technical Field

[0001] This application relates to the field of carton conveying technology, and in particular to a stacking mechanism for a carton production line. Background Technology

[0002] In the cardboard box manufacturing industry, the stacking of cardboard boxes is a crucial part of the production process, and its efficiency affects the overall profitability of the production process.

[0003] Currently, most existing cardboard box production lines rely on manual operation for the cardboard board stacking process. Specifically, after the cardboard boards are conveyed from the feeding conveyor, they cannot be automatically and sequentially gathered and stacked on pallets. Workers need to pick up and place the cardboard boards on the production line, moving them one by one to the pallets for stacking. During this process, workers need to maintain bending and carrying movements for extended periods, resulting in high labor intensity, fatigue, and reduced work efficiency. In addition, manual operation is prone to errors, making it difficult to guarantee the neatness and stability of the cardboard board stacking, which may cause the cardboard boards to collapse during the stacking process.

[0004] To address the aforementioned issues, a stacking mechanism for a cardboard box production line is now designed. Utility Model Content

[0005] This application provides a stacking mechanism for a carton production line to solve the problem that in existing carton production lines, the stacking of carton boards mostly relies on manual operation, which is labor-intensive, easily causes fatigue, and thus affects work efficiency.

[0006] In a first aspect, a stacking mechanism for a carton production line is provided, comprising:

[0007] A feeding conveyor and a stacking conveyor are provided, wherein the feeding conveyor is used to convey cardboard boxes, and the stacking conveyor is provided with a tray for preventing the cardboard boxes from stacking. The feeding conveyor is characterized by having an adsorption mechanism above it for adsorbing the cardboard boxes conveyed on it; a support is provided above the feeding conveyor and the stacking conveyor; a driving component is mounted on the support; a lifting component is mounted on the driving component; the lifting component is connected to the adsorption mechanism; the lifting component drives the adsorption mechanism to move up and down; and the driving component drives the adsorption mechanism to reciprocate along the top of the feeding conveyor and the stacking conveyor.

[0008] The support is provided with a guide unit, which includes a limiting frame arranged above the tray and a power unit arranged on the support. The power unit is used to drive the limiting frame to move along the height of the tray.

[0009] In some embodiments, the feeding conveyor is a mesh belt conveyor used to convey cardboard, and the stacking conveyor is a chain conveyor used to convey pallets.

[0010] In some embodiments, the adsorption mechanism includes a support frame and a plurality of pneumatic vacuum suction cups disposed on the support frame.

[0011] In some embodiments, the drive unit includes two housings arranged opposite each other on a bracket. A lead screw is rotatably disposed in one housing and a slide rod is disposed in the other housing. A transmission block is threadedly connected to the lead screw and a guide block is sleeved on the slide rod. Both the transmission block and the guide block are provided with connecting pieces.

[0012] A traveling frame is slidably disposed between the two housings. A sliding hole is provided on the housing. The other ends of the two connecting pieces pass through the sliding hole and are connected to both ends of the traveling frame.

[0013] A drive motor and a reducer are provided on one side of the housing. The output shaft of the drive motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to one end of a lead screw.

[0014] In some embodiments, the lifting component includes a housing two disposed at the bottom of the traveling frame, a winding reel rotatably disposed inside the housing two, a cable wound on the winding reel, a through hole opened at the bottom of the housing two, and the other end of the cable extending outward through the through hole;

[0015] The cable extends outwards at one end and is provided with multiple branch cables. The other end of the branch cables is connected to the four corners of the support frame.

[0016] The housing 2 is equipped with a drive motor 2 and a reducer 2. The output shaft of the drive motor 2 is connected to the input shaft of the reducer 2, and the output shaft of the reducer 2 is connected to the winding reel.

[0017] In some embodiments, the limiting frame includes a main beam and fixed plates disposed opposite to each other at both ends of the main beam. Multiple pulleys are rotatably disposed on the fixed plates, and the pulleys slide in cooperation with the bracket.

[0018] A rectangular frame plate is provided on one side of the main beam, and the rectangular frame plate has positioning holes that are adapted to the size of the cardboard.

[0019] In some embodiments, the power unit includes a mounting base arranged on a bracket, two electric push rods disposed opposite each other on the mounting base, two fixed discs disposed on the main beam, and the bottom end of the piston rod of the electric push rods being connected to the fixed discs.

[0020] This application provides a stacking mechanism for a carton production line. Through the coordinated use of a feeding conveyor, a stacking conveyor, an adsorption mechanism, a lifting component, a driving component, and a guiding unit, the mechanism automates the process of conveying, adsorbing, lifting, moving, and stacking carton boards. This eliminates the need for frequent manual picking and placing of carton boards, significantly shortening the production cycle. It enables rapid and continuous stacking of carton boards, freeing workers from long hours of heavy physical labor. Workers only need to control and maintain the equipment, effectively reducing their labor intensity and improving the overall efficiency of carton production.

[0021] The guiding unit can position the cardboard boxes, ensuring that they are neatly stacked on the pallet. This avoids problems such as skewing and unevenness that may occur when stacking manually, improving the quality and stability of stacking and benefiting subsequent packaging and transportation processes. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A three-dimensional structural schematic diagram provided for an embodiment of this application;

[0024] Figure 2 This is a top sectional view of the drive component provided in an embodiment of this application;

[0025] Figure 3 A three-dimensional schematic diagram of the lifting component provided in the embodiments of this application;

[0026] Figure 4 This is a front sectional view of the lifting component provided in an embodiment of this application;

[0027] Figure 5 This is an assembly diagram of the guide unit, tray, and stacking conveyor provided in an embodiment of this application.

[0028] In the diagram: 1. Feeding conveyor; 2. Stacking conveyor; 3. Pallet; 4. Adsorption mechanism; 41. Support frame; 42. Pneumatic vacuum suction cup; 5. Bracket; 6. Drive unit; 61. Housing; 62. Lead screw; 63. Transmission block; 64. Guide block; 65. Connecting piece; 66. Traveling frame; 67. Slide rod; 7. Lifting component; 71. Housing II; 72. Rewinding reel; 73. Cable; 74. Splitting cable; 8. Guide unit; 81. Limiting frame; 811. Main beam; 812. Fixing plate; 813. Pulley; 814. Rectangular frame plate; 815. Positioning hole; 82. Power unit; 821. Mounting base; 822. Electric push rod; 823. Fixing plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] This application provides a stacking mechanism for a carton production line, which solves the problem that in existing carton production lines, the stacking of carton boards mostly relies on manual operation, which is labor-intensive, easily causes fatigue, and thus affects work efficiency.

[0031] Please see Figures 1-3 A stacking mechanism for a carton production line includes: a feeding conveyor 1 and a stacking conveyor 2, wherein the feeding conveyor 1 is used to convey carton boards, and a tray 3 is arranged on the stacking conveyor 2 to prevent the stacked carton boards from being stacked. The mechanism is characterized in that an adsorption mechanism 4 is arranged above the feeding conveyor 1 to adsorb the carton boards conveyed on the feeding conveyor 1; a support 5 is arranged above the feeding conveyor 1 and the stacking conveyor 2; a driving component 6 is arranged on the support 5; a lifting component 7 is arranged on the driving component 6; the lifting component 7 is connected to the adsorption mechanism 4 and is used to drive the adsorption mechanism 4 to move up and down; the driving component 6 is used to drive the adsorption mechanism 4 to reciprocate along the feeding conveyor 1 and the stacking conveyor 2; and a guiding unit 8 is arranged on the support 5, the guiding unit 8 including a limiting frame 81 arranged above the tray 3 and a power unit 82 arranged on the support 5, the power unit 82 being used to drive the limiting frame 81 to move along the height of the tray 3.

[0032] The feeding conveyor 1 starts to operate, conveying the cardboard boxes to be stacked forward in sequence, gradually bringing them closer to the working area of ​​the adsorption mechanism 4. At the same time, the stacking conveyor 2 conveys the pallet 3 to the designated stacking position.

[0033] When the cardboard is conveyed to the appropriate position below the adsorption mechanism 4, the adsorption mechanism 4 starts to work and adsorbs the surface of the cardboard. Then, the lifting component 7 starts and lifts the adsorption mechanism 4 and the adsorbed cardboard together, raising the cardboard to a certain height to prepare for lateral movement. The driving component 6 starts to work and moves the cardboard from above the feeding conveyor 1 to directly above the pallet 3 above the stacking conveyor 2. After reaching directly above the pallet 3, the lifting component 7 reverses its rotation, causing the adsorption mechanism 4 to lower the cardboard and place the cardboard on the pallet 3.

[0034] At the same time, the power unit 82 drives the limiting frame 81 to move above the pallet 3, keeping in line with the stacking height of the cartons. The rectangular frame plate 814 on the limiting frame 81 can position the cartons to ensure that the cartons are stacked neatly. As the cartons are continuously stacked, the rectangular frame plate 814 rises accordingly.

[0035] Then, the adsorption mechanism 4 releases the cardboard, completing one stacking process. By repeating the above steps, continuous stacking of cardboard can be achieved.

[0036] By using the combined operation of the feeding conveyor 1, stacking conveyor 2, adsorption mechanism 4, lifting component 7, driving component 6, and guiding unit 8, the automated operation of the carton boards from conveying, adsorption, lifting, moving, and stacking is realized. There is no need for frequent manual picking and placing of carton boards, which greatly shortens the production cycle and enables the rapid and continuous completion of carton board stacking. Workers do not need to perform heavy physical labor for long periods of time. They only need to control and maintain the equipment, which effectively reduces the labor intensity of workers and improves the overall efficiency of carton production.

[0037] The guiding unit 8 can position the cardboard boxes, ensuring that they are neatly stacked on the pallet 3. This avoids problems such as skewing and unevenness that may occur during manual stacking, improves the quality and stability of stacking, and is beneficial for subsequent packaging, transportation and other processes.

[0038] like Figure 1 As shown in the figure, the feeding conveyor 1 in this embodiment is a mesh belt conveyor, which is used to convey cardboard, and the stacking conveyor 2 is a chain conveyor, which is used to convey pallets 3.

[0039] The feeding and conveying section 1 uses a mesh belt conveyor to continuously transport cardboard from the feeding position to the working area below the adsorption mechanism 4, providing raw materials for subsequent adsorption and stacking operations. The mesh belt of the mesh belt conveyor has good air permeability and flexibility, can adapt to cardboard of different shapes and sizes, and causes minimal damage to the cardboard during the conveying process.

[0040] Stacking conveyor 2 uses a chain conveyor, which transmits power through the cyclical movement of the chain.

[0041] Pallet 3 is placed on a chain, which moves forward under the action of a drive unit, thereby driving pallet 3 to move along a set path. The chain conveyor has the advantages of high load-bearing capacity, stable operation, and suitability for long-distance conveying, and can meet the conveying needs of pallet 3 and stacked cardboard boxes.

[0042] like Figure 3 and Figure 4 As shown, in one embodiment, the adsorption mechanism 4 includes a support frame 41 and a plurality of pneumatic vacuum suction cups 42 disposed on the support frame 41. The pneumatic vacuum suction cups 42 are connected to an external vacuum generator.

[0043] When the cardboard is conveyed by the mesh belt conveyor to a suitable position below the adsorption mechanism 4, the external vacuum generator, the vacuum pump, starts working. The vacuum pump draws air into the pneumatic vacuum suction cup 42 through a connected pipe, creating a negative pressure environment inside the suction cup. At this time, the pneumatic vacuum suction cup 42 is in close contact with the surface of the cardboard. Because the air pressure inside the suction cup is lower than the external atmospheric pressure, the cardboard is tightly adsorbed onto the pneumatic vacuum suction cup 42 under the action of atmospheric pressure. Multiple pneumatic vacuum suction cups 42 are evenly distributed on the support frame 41, which increases the contact area with the cardboard, improves the stability and reliability of the adsorption, and ensures that the cardboard will not fall off during subsequent lifting and movement.

[0044] Once the cardboard box contacts the pallet 3 and is placed stably, the external vacuum generator stops pumping air and introduces compressed air into the pneumatic vacuum suction cup 42, making the air pressure inside the suction cup equal to the external atmospheric pressure, eliminating the negative pressure, and the adsorption force between the pneumatic vacuum suction cup 42 and the cardboard box disappears, completing one cardboard box stacking process.

[0045] like Figure 2As shown, in one embodiment, the driving component 6 includes two housings 61 arranged opposite to each other on the bracket 5. A lead screw 62 is rotatably disposed in one housing 61, and a slide rod 67 is disposed in the other housing 61. A transmission block 63 is threadedly connected to the lead screw 62, and the transmission block 63 has a threaded hole that corresponds to the lead screw 62. A guide block 64 is sleeved on the slide rod 67. Both the transmission block 63 and the guide block 64 are provided with connecting pieces 65. A traveling frame 66 is slidably disposed between the two housings 61. A sliding hole is provided in the housing 61, and the other ends of the two connecting pieces 65 pass through the sliding hole and are connected to both ends of the traveling frame 66. A drive motor and a reducer are disposed on one housing 61. The output shaft of the drive motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to one end of the lead screw 62.

[0046] When the drive adsorption mechanism 4 moves, the control system sends a start signal, the drive motor starts to run, and the output shaft of the drive motor transmits power to the reducer. The reducer reduces the speed and increases the torque of the transmitted power, and then transmits it to the lead screw 62 through its output shaft, so that the lead screw 62 starts to rotate in the housing 61 on one side. Since the transmission block 63 is threadedly connected to the lead screw 62, when the lead screw 62 rotates, according to the principle of threaded transmission, the transmission block 63 will move linearly along the axis of the lead screw 62.

[0047] Meanwhile, the slide bar 67 serves as a guide and support, and the guide block 64 slides linearly along the slide bar. As the transmission block 63 and the guide block 64 move, the connecting piece 65 drives the traveling frame 66 to move linearly between the two housings 61. The movement of the traveling frame 66 drives the adsorption mechanism 4 to move together, thereby moving the adsorption mechanism 4, which adsorbs the carton board, from above the feeding conveyor 1 to above the stacking conveyor 2, or moving in the opposite direction.

[0048] After the adsorption mechanism 4 moves to the designated position and completes the stacking operation of the cardboard, the control system sends a stop signal, and the drive motor stops running. To perform the next stacking operation, the device needs to return to the initial position. The control system controls the drive motor to run in reverse, following the reverse process, so that the traveling frame 66 drives the adsorption mechanism 4 back to the initial position, ready for the next adsorption and movement operation.

[0049] like Figure 3 and Figure 4As shown, in one embodiment, the lifting component 7 includes a housing 71 disposed at the bottom of the traveling frame 66. A winding reel 72 is rotatably disposed inside the housing 71, and a cable 73 is wound around the winding reel 72. A through hole is opened at the bottom of the housing 71, and the other end of the cable 73 extends outward through the through hole. A plurality of branch cables 74 are provided at one end of the cable 73 extending outward, and the other end of the branch cables 74 is connected to the four corners of the support frame 41. A drive motor 2 and a reducer 2 are disposed on the housing 71. The output shaft of the drive motor 2 is connected to the input shaft of the reducer 2, and the output shaft of the reducer 2 is connected to the winding reel 72.

[0050] Before the cardboard board stacking operation begins, the lifting component 7 is initially stationary.

[0051] When the adsorption mechanism 4 adsorbs the carton board through the pneumatic vacuum suction cup 42, the control system sends a lifting signal, and the drive motor 2 starts to run. The output shaft of the drive motor 2 transmits power to the reducer 2. The reducer 2 performs speed reduction and torque increase processing, and then transmits stable power to the winding reel 72, so that the winding reel 72 starts to rotate inside the housing 71.

[0052] As the take-up reel 72 rotates, the cable 73 wound around the take-up reel 72 is gradually wound up, and the cable 73 moves upward at the through hole at the bottom of the housing 71.

[0053] Multiple branch cables 74 are connected to the four corners of the support frame 41. The upward movement of the cable 73 will pull the branch cables 74, causing the support frame 41 to move upward, which in turn will cause the adsorption mechanism 4 adsorbing the cardboard to be lifted upward, raising the cardboard to a certain height, in preparation for subsequent moving and stacking operations.

[0054] The second drive motor rotates in reverse, and its output shaft drives the take-up reel 72 to rotate in the opposite direction through the second reducer. The counterclockwise rotation of the take-up reel 72 causes the cable 73 to be gradually released from the take-up reel 72. As the cable 73 descends, the tapping cable 74 pulls the support frame 41 downward, causing the support frame 41 to drive the adsorption mechanism 4 and the carton board to move downward together.

[0055] like Figure 1 and Figure 5 As shown, in one embodiment, the limiting frame 81 includes a main beam 811 and fixed plates 812 disposed opposite to each other at both ends of the main beam 811. A plurality of pulleys 813 are rotatably disposed on the fixed plates 812, and the pulleys 813 slide in cooperation with the bracket 5. A rectangular frame plate 814 is provided on one side of the main beam 811, and the rectangular frame plate 814 has positioning holes 815, which are adapted to the size of the cardboard.

[0056] Before the cardboard stacking operation begins, the limiting frame 81 is in its initial position. At this time, the pulleys 813 on the fixing plates 812 at both ends of the main beam 811 slide in cooperation with the bracket 5, and the rectangular frame plate 814 is located at the bottom and contacts the surface of the pallet 3.

[0057] When preparing to stack, as the cardboard board descends, its edges gradually approach the rectangular frame plate 814 of the limiting frame 81. Since the size of the positioning hole 815 is adapted to the cardboard board, the cardboard board will fall accurately into the position range defined by the positioning hole 815 under the guidance of the positioning hole 815. The fixing plate 812 and the pulley 813 ensure the stability of the limiting frame 81 when it is impacted by the falling cardboard board, and it will not shake or shift, thereby ensuring that the cardboard board can be neatly stacked on the pallet 3.

[0058] like Figure 5 As shown, in one embodiment, the power unit 82 includes a mounting base 821 arranged on the bracket 5, two electric push rods 822 are arranged opposite each other on the mounting base 821, and two fixed disks 823 are arranged on the main beam 811. The bottom end of the piston rod of the electric push rod 822 is connected to the fixed disk 823.

[0059] Before the cardboard stacking operation begins, the two electric push rods 822 on the mounting base 821 of the bracket 5 are in the extended state, the limiting frame 81 is above the pallet 3, and its rectangular frame plate 814 is infinitely close to the pallet 3.

[0060] As the cardboard boxes are stacked on the pallet 3, in order to match the height of the rectangular frame plate 814 with the cardboard boxes, the control system sends a signal to make the two electric push rods 822 start working simultaneously. The piston rods of the electric push rods 822 retract inward, driving the fixed plate 823 and the main beam 811 to move up and down together, so that the positioning hole 815 on the rectangular frame plate 814 moves to a position that matches the size of the target cardboard box.

[0061] It should be noted that the height of the rectangular frame plate 814 in this embodiment is always higher than the height of the cardboard boxes stacked on the pallet 3, thereby guiding and limiting the stacking of the cardboard boxes.

[0062] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0063] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A stacking mechanism for a cardboard box production line, comprising: The loading conveyor (1) and stacking conveyor (2) are provided. The loading conveyor (1) is used to convey cardboard, and the stacking conveyor (2) is provided with a tray (3) for preventing the stacked cardboard. The characteristic feature is that an adsorption mechanism (4) is provided above the loading conveyor (1) for adsorbing the cardboard conveyed on the loading conveyor (1). A support (5) is provided above the loading conveyor (1) and the stacking conveyor (2). A driving member (6) is provided on the support (5). A lifting member (7) is provided on the driving member (6). The lifting member (7) is connected to the adsorption mechanism (4). The lifting member (7) is used to drive the adsorption mechanism (4) to move up and down. The driving member (6) is used to drive the adsorption mechanism (4) to move back and forth along the loading conveyor (1) and the stacking conveyor (2). The support (5) is provided with a guide unit (8), which includes a limiting frame (81) arranged above the tray (3) and a power unit (82) arranged on the support (5). The power unit (82) is used to drive the limiting frame (81) to move along the height of the tray (3).

2. The stacking mechanism for a carton production line as described in claim 1, characterized in that: The feeding conveyor (1) is a mesh belt conveyor used to convey cardboard, and the stacking conveyor (2) is a chain conveyor used to convey pallets (3).

3. The stacking mechanism for a cardboard box production line as described in claim 1, characterized in that: The adsorption mechanism (4) includes a support frame (41) and a plurality of pneumatic vacuum suction cups (42) disposed on the support frame (41).

4. The stacking mechanism for a carton production line as described in claim 3, characterized in that: The drive unit (6) includes two housings (61) arranged opposite to each other on the bracket (5). A lead screw (62) is rotatably installed in one housing (61), and a slide rod (67) is installed in the other housing (61). A transmission block (63) is threaded onto the lead screw (62), and a guide block (64) is sleeved on the slide rod (67). A connecting piece (65) is provided on both the transmission block (63) and the guide block (64). A traveling frame (66) is slidably disposed between the two housings (61). A sliding hole is provided on the housing (61), and the other ends of the two connecting pieces (65) pass through the sliding hole and are connected to both ends of the traveling frame (66). A drive motor and a reducer are provided on one side of the housing (61). The output shaft of the drive motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to one end of the lead screw (62).

5. The stacking mechanism for a carton production line as described in claim 4, characterized in that: The lifting component (7) includes a housing two (71) disposed at the bottom of the traveling frame (66), a winding reel (72) is rotatably disposed inside the housing two (71), a cable (73) is wound on the winding reel (72), a through hole is opened at the bottom of the housing two (71), and the other end of the cable (73) extends outward through the through hole; The cable (73) extends outward with a plurality of branch cables (74) at one end, and the other end of the branch cables (74) is connected to the four corners of the support frame (41). The housing 2 (71) is provided with a drive motor 2 and a reducer 2. The output shaft of the drive motor 2 is connected to the input shaft of the reducer 2, and the output shaft of the reducer 2 is connected to the winding reel (72).

6. The stacking mechanism for a carton production line as described in claim 1, characterized in that: The limiting frame (81) includes a main beam (811) and fixed plates (812) disposed opposite to each other at both ends of the main beam (811). Multiple pulleys (813) are rotatably disposed on the fixed plates (812), and the pulleys (813) slide in cooperation with the bracket (5). A rectangular frame plate (814) is provided on one side of the main beam (811), and the rectangular frame plate (814) has a positioning hole (815) that is adapted to the size of the cardboard.

7. A stacking mechanism for a carton production line as described in claim 6, characterized in that: The power unit (82) includes a mounting base (821) arranged on the bracket (5), two electric push rods (822) are arranged opposite each other on the mounting base (821), and two fixed plates (823) are arranged on the main beam (811). The bottom end of the piston rod of the electric push rod (822) is connected to the fixed plate (823).

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