Stacker for carton production

Abstract

The utility model discloses a kind of stacking machines for carton production, including bottom plate, the top of bottom plate is equipped with conveyor, and the tail end of conveyor is provided with the support plate fixed to the top of bottom plate, the first bidirectional screw rod is vertically arranged in the below of conveyor.The utility model is high in stacking efficiency, high in accuracy, solves the problem of low efficiency and poor accuracy of traditional stacking by automatic transmission and accurate limiting structure, the conveyor realizes automatic conveying of carton, servo motor drives bidirectional screw rod accurate adjustment component spacing, limiting mechanism and lifting mechanism cooperate, so that stacking efficiency is improved, accurate positioning of limiting block and insert plate reduces carton stacking deviation, interlayer neatness is high, transportation collapse rate is reduced, and stacking quality is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of palletizing machine technology, and in particular to a palletizing machine for carton production. Background Technology

[0002] Palletizing machines for cardboard box production are key automated equipment in the cardboard box manufacturing process. They are mainly used to automatically stack finished cardboard boxes (such as packaging boxes and shipping boxes) according to preset rules (such as multi-layer stacking and neat arrangement) for subsequent warehousing, transportation, and loading and unloading. Their core function is to replace manual palletizing. Through the coordinated operation of conveyors, limiting mechanisms, and lifting mechanisms, they achieve full automation of the entire process from cardboard box production line output to palletization. They are adaptable to cardboard boxes of different sizes (length 200-600mm, width 150-400mm, height 50-200mm) and are widely used in cardboard box factories, packaging plants, e-commerce logistics, and other scenarios. They are important equipment for improving the efficiency of downstream processing in cardboard box production and reducing the intensity of manual labor.

[0003] However, existing palletizing methods for cardboard box production have significant shortcomings in practical applications.

[0004] On the one hand, palletizing is inefficient and inaccurate. Traditional manual palletizing requires 2-3 people to work together, and a single person can only palletize 80-120 cartons per hour, which is inefficient. Moreover, manual stacking is prone to causing cartons to tilt, misalignment between layers, poor palletizing stability, and cartons to collapse during transportation.

[0005] On the other hand, they have poor adaptability and are cumbersome to operate. Some semi-automatic palletizers can only adapt to a single size of carton. When changing the carton specifications, the limiting parts need to be disassembled and adjusted, which takes a long time. In addition, the cartons are prone to shifting during transportation, resulting in palletizing misalignment. Frequent manual intervention and adjustment are required, which makes it difficult to meet the needs of multiple specifications and high-frequency changes in carton production. Their adaptability and automation level are low. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a palletizing machine for carton production, which overcomes the shortcomings of the existing technology and effectively solves the problems of low efficiency, poor accuracy, poor adaptability and cumbersome operation of the existing palletizing method.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A palletizing machine for carton production includes a base plate. A conveyor is mounted on the top of the base plate, and a support plate fixed to the top of the base plate is provided at the tail end of the conveyor. A first bidirectional lead screw is vertically arranged below the conveyor, and movable blocks are screwed to both ends of the first bidirectional lead screw. A fixing frame is welded to the top of each of the two movable blocks, and a fixing block is welded to the top of each of the two fixing frames. A limit mechanism is fixed to the top of the support plate, and a lifting mechanism is fixed to the back of the support plate. The limit mechanism includes a connecting frame, a first push rod motor installed and fixed to the inner wall of one end of the connecting frame, and a mechanism installed and fixed to the first push rod motor. The lifting mechanism includes a T-shaped block at one end, a fixed rod that passes through and is fixed to the T-shaped block, sliders that are slidably connected to both ends of the fixed rod wall, connecting rods that are welded and fixed to the front of the two sliders, connecting plates that are welded and fixed to one end of the two connecting rods, and limiting blocks that are evenly distributed on the outer walls of the two connecting plates that are close to each other. The lifting mechanism includes a mounting plate, a second push rod motor that is mounted and fixed to the bottom of the mounting plate, a support frame that is mounted and fixed to the bottom of the second push rod motor, a second bidirectional screw that is rotatably connected to the inner walls of both ends of the support frame, adjusting plates that are screwed to both ends of the second bidirectional screw wall, and insert plates that are welded and fixed to the outer walls of the two adjusting plates that are close to each other.

[0009] Furthermore, universal wheels are installed and fixed at the four corners of the bottom of the base plate, and an installation groove is provided on the top of the base plate. The two ends of the first bidirectional lead screw are rotatably connected to the inner walls of the two ends of the installation groove, and the movable block forms a sliding fit with the installation groove.

[0010] The casters facilitate the overall movement of the palletizer, adapting to the layout adjustments of the carton production workshop; the mounting slot provides installation space for the first bidirectional lead screw and the movable block, ensuring that the movable block slides in a straight line, driving the fixed frame to precisely adjust the spacing, adapting to cartons of different widths.

[0011] Furthermore, servo motors are respectively installed and fixed on one side of the outer wall of the base plate and one end of the outer wall of the support frame, and the output shafts of the two servo motors are respectively connected and fixed to one end of the first bidirectional lead screw and the second bidirectional lead screw through couplings.

[0012] The servo motor powers the bidirectional lead screw, and by precisely controlling the lead screw speed, the fixed frame spacing and insert plate spacing can be accurately adjusted to ensure compatibility with different carton sizes without the need for manual adjustment.

[0013] Furthermore, the bottom end of the connecting frame away from the first push rod motor is welded and fixed to the top of the support plate, and the T-shaped block and the connecting frame form a sliding fit, with the connecting rod and the fixed block interlocking and sliding with each other.

[0014] The connecting frame provides stable support for the limiting mechanism. The T-block slides along the connecting frame, causing the limiting block to move closer to or away from the carton, thus achieving precise limiting of the carton. The insertion and cooperation between the connecting rod and the fixed block ensures that the connecting plate remains horizontal when it moves, preventing the limiting block from shifting and causing the carton to become misaligned.

[0015] Furthermore, the connecting plate is located on the side of the fixed frame away from the support plate, and the outer wall of one side of the connecting plate is provided with equally spaced slots along the vertical direction, and the slots and the limiting block form a plug-in fit.

[0016] The design of the connecting plate ensures that the limiting blocks can be positioned from both sides of the carton; the limiting blocks can be flexibly installed and removed via slots, and the number and spacing of the limiting blocks can be adjusted according to the height of the carton to adapt to cartons of different heights and improve adaptability.

[0017] Furthermore, one side of the outer wall of the mounting plate is welded and fixed to the back of the support plate, and through holes are provided at both ends of the top of the mounting plate. Guide rods that interlock with the through holes are welded and fixed at both ends of the top of the support frame.

[0018] The mounting plate provides a fixed foundation for the lifting mechanism. The insertion and connection of the guide rod and the through hole ensure that the support frame remains vertical when it is raised and lowered by the second push rod motor, preventing the carton from falling due to plate offset and improving stacking stability.

[0019] Furthermore, the adjusting plate and the support frame form a sliding fit, and the length of the insert plate is less than the distance between the inner walls on both sides of the fixed frame, with the insert plate located inside the fixed frame.

[0020] The adjusting plate slides along the support frame, causing the insert plate to precisely adjust the spacing; the size design of the insert plate ensures that it can penetrate deep into the fixed frame to lift the carton without colliding with the fixed frame, ensuring a smooth lifting process and achieving stable transfer and stacking of the carton.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. High palletizing efficiency and precision: Through automated transmission and precise limiting structure, the problem of low efficiency and poor precision in traditional palletizing is solved. The conveyor realizes automatic carton transport, the servo motor drives the bidirectional lead screw to precisely adjust the spacing of the components, and the limiting mechanism and the lifting mechanism work together to improve palletizing efficiency. The precise positioning of the limiting block and the insert plate reduces the deviation of carton palletizing, the neatness between layers is high, the collapse rate during transportation is reduced, and the palletizing quality is significantly improved.

[0023] 2. High adaptability and convenient operation: Relying on a flexible adjustable structure and automated control, it improves upon the poor adaptability and cumbersome operation of traditional palletizers. The first bidirectional lead screw drives the fixed frame to adapt to cartons of different widths, and the limit block can be detached to adapt to cartons of different heights. There is no need to disassemble parts, shortening the time for changing specifications and adjusting. The adaptability is improved compared to traditional equipment. The fully automated operation requires no manual intervention, and only one person is needed to monitor the operation of the equipment, greatly reducing labor intensity. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a palletizing machine for carton production proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the base plate structure of a palletizing machine for carton production proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the limiting mechanism of a palletizing machine for carton production proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the lifting mechanism of a palletizing machine for carton production proposed in this utility model.

[0028] In the diagram: 1. Base plate; 2. Conveyor; 3. Support plate; 4. First bidirectional lead screw; 5. Movable block; 6. Fixed frame; 7. Fixed block; 8. Limiting mechanism; 9. Lifting mechanism; 10. Connecting frame; 11. First push rod motor; 12. T-block; 13. Fixed rod; 14. Slider; 15. Connecting rod; 16. Connecting plate; 17. Limiting block; 18. Mounting plate; 19. Second push rod motor; 20. Guide rod; 21. Support frame; 22. Second bidirectional lead screw; 23. Adjusting plate; 24. Insert plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example:

[0031] Reference Figure 1-4A palletizing machine for carton production includes a base plate 1, a conveyor 2 mounted on the top of the base plate 1, a support plate 3 fixed to the top of the base plate 1 at the tail end of the conveyor 2, a first bidirectional lead screw 4 vertically mounted below the conveyor 2, movable blocks 5 screwed to both ends of the first bidirectional lead screw 4, fixed frames 6 welded to the top of each movable block 5, and fixed blocks 7 welded to the top of each fixed frame 6, a limit mechanism 8 fixed to the top of the support plate 3, and a lifting mechanism 9 fixed to the back of the support plate 3. The limit mechanism 8 includes a connecting frame 10, a first push rod motor 11 mounted and fixed to the inner wall of one end of the connecting frame 10, a T-shaped block 12 mounted and fixed to one end of the first push rod motor 11, and a T-shaped block 12. The lifting mechanism 9 includes a fixed rod 13 that passes through and is fixed; sliders 14 that are slidably connected to both ends of the fixed rod 13; connecting rods 15 that are welded and fixed to the front of the two sliders 14; connecting plates 16 that are welded and fixed to one end of the two connecting rods 15; and limiting blocks 17 that are evenly distributed on the outer walls of the two connecting plates 16 that are close to each other. The lifting mechanism 9 includes a mounting plate 18; a second push rod motor 19 that is mounted and fixed to the bottom of the mounting plate 18; a support frame 21 that is mounted and fixed to the bottom of the second push rod motor 19; a second bidirectional screw 22 that is rotatably connected to the inner walls of both ends of the support frame 21; adjusting plates 23 that are screwed to both ends of the second bidirectional screw 22; and insert plates 24 that are welded and fixed to the outer walls of the two adjusting plates 23 that are close to each other.

[0032] The base plate 1 has casters fixed at all four corners of its bottom. A mounting groove is provided on the top of the base plate 1. The two ends of the first bidirectional lead screw 4 are rotatably connected to the inner walls of the mounting groove. The movable block 5 slides into the mounting groove. The casters facilitate the overall movement of the palletizer, adapting to the layout adjustments in the carton production workshop. The mounting groove provides installation space for the first bidirectional lead screw 4 and the movable block 5, ensuring that the movable block 5 slides in a straight line, driving the fixed frame 6 to precisely adjust the spacing, adapting to cartons of different widths. Servo motors are fixedly installed on one outer wall of the base plate 1 and one outer wall of the support frame 21, respectively. The output shafts of the two servo motors are connected and fixed to one end of the first bidirectional lead screw 4 and the second bidirectional lead screw 22 via couplings. The bidirectional lead screw is powered, and the distance between the fixed frame 6 and the insertion plate 24 is precisely adjusted by controlling the lead screw speed. This ensures that it can adapt to different sizes of cartons without manual adjustment. The bottom end of the connecting frame 10 away from the first push rod motor 11 is welded and fixed to the top of the support plate 3. The T-block 12 and the connecting frame 10 form a sliding fit. The connecting rod 15 and the fixed block 7 are inserted and slid together. The connecting frame 10 provides stable support for the limiting mechanism 8. The T-block 12 slides along the connecting frame 10, which drives the limiting block 17 to move closer to or away from the carton, so as to achieve precise limiting of the carton. The insertion fit between the connecting rod 15 and the fixed block 7 ensures that the connecting plate 16 remains horizontal when it moves, and avoids the limiting block 17 from shifting and causing the carton to be misaligned.

[0033] The connecting plate 16 is located on the side of the fixed frame 6 away from the support plate 3. The outer wall of one side of the connecting plate 16 has equally spaced slots along the vertical direction. These slots engage with the limiting blocks 17. The position of the connecting plate 16 ensures that the limiting blocks 17 can be positioned from both sides of the carton. The limiting blocks 17 can be flexibly installed and removed via the slots. The number and spacing of the limiting blocks 17 can be adjusted according to the height of the carton to accommodate cartons of different heights, improving adaptability. The outer wall of the mounting plate 18 is welded to the back of the support plate 3. Through holes are provided at both ends of the top of the mounting plate 18. Guide rods 20, which engage with the through holes, are welded to both ends of the top of the support frame 21. Mounting plate 18 provides a fixed base for lifting mechanism 9; guide rod 20 and through hole are inserted to ensure that support frame 21 remains vertical when raised and lowered with second push rod motor 19, preventing carton from falling due to offset of insert plate 24, thus improving stacking stability; adjustment plate 23 and support frame 21 are in sliding fit; the length of insert plate 24 is less than the distance between the inner walls on both sides of fixed frame 6; insert plate 24 is located inside fixed frame 6; adjustment plate 23 slides along support frame 21, driving insert plate 24 to precisely adjust the distance; the size design of insert plate 24 ensures that it can penetrate deep into fixed frame 6 to lift carton without colliding with fixed frame 6, ensuring smooth lifting process and achieving stable transfer and stacking of carton;

[0034] For the base plate and conveyor section: Base plate 1 is made of 12mm thick Q235 cold-rolled steel plate, with surface sandblasting and electrostatic powder coating treatment, which has strong corrosion resistance and can be used for a long time in the carton production workshop. The four corners of the bottom of base plate 1 are equipped with casters with braking function, and the braking friction is ≥200N to ensure that the equipment does not slip during operation. The conveyor 2 installed on the top of base plate 1 is a belt conveyor. The belt material is PVC and the surface is provided with anti-slip texture to prevent the carton from deviating during transportation. The distance between the tail end of conveyor 2 and support plate 3 is 50mm to ensure that the carton can be accurately transported into the fixed frame 6.

[0035] For the first bidirectional lead screw and fixed frame: In the mounting groove opened at the top of the base plate 1, the two ends of the first bidirectional lead screw 4 are fixed to the inner wall of the mounting groove by deep groove ball bearings. The radial clearance of the bearings is ≤0.015mm and the rotational resistance is ≤8N. The movable blocks 5 screwed to both ends of the first bidirectional lead screw 4 slide with the mounting groove. The fixed frame 6 is welded to the top of the movable block 5. The two fixed frames 6 are symmetrically distributed and the spacing is adjustable. The fixed block 7 welded to the top of the fixed frame 6 has a through hole in the middle that matches the connecting rod 15 to ensure that the connecting rod 15 slides smoothly. The servo motor installed on the outer wall of one side of the base plate 1 is connected to the first bidirectional lead screw 4 through a plum blossom coupling. The coupling allows a radial deviation of ≤0.1mm to reduce vibration transmission. The motor achieves precise speed control through a PLC controller.

[0036] For the limiting mechanism: the bottom of the connecting frame 10 is fully welded to the top of the support plate 3, with a weld height of 6mm. The weld is inspected to ensure there is no false weld. The first push rod motor 11 is installed on the inner wall of one end of the connecting frame 10 by M8 bolts. The output shaft is fixed to the T-block 12 by a flange. The T-block 12 slides with the inner wall of the connecting frame 10 with a sliding resistance of ≤5N. The T-block 12 passes through the fixed rod 13. The slider 14 is slidably connected to both ends of the rod wall. The slider 14 and the fixed rod 13 have a gap of 0.1mm. The connecting rod 15 is welded to the front of the slider 14 and slides with the through hole of the fixed block 7. The connecting plate 16 is welded to one end of the connecting rod 15. The slot on one side of the outer wall is inserted into the limiting block 17. The insertion and extraction force of the limiting block 17 is ≤10N and can be flexibly increased or decreased according to the height of the carton.

[0037] For the lifting mechanism: the mounting plate 18 is fully welded to the back of the support plate 3 on one side. The through holes at both ends of the top of the mounting plate 18 are inserted into the guide rods 20 welded to the top of the support frame 21. The gap between the guide rods 20 and the through holes is 0.1mm to ensure that the support frame 21 rises and falls smoothly. The second push rod motor 19 is installed at the bottom of the mounting plate 18 by M10 bolts. The output shaft is fixed to the center of the top of the support frame 21. The second bidirectional lead screw 22 is rotatably connected to the inner walls of both ends of the support frame 21 and is fixed at both ends by bearings. The servo motor installed on the outer wall of one end of the support frame 21 is connected to the second bidirectional lead screw 22 by a coupling. The adjusting plates 23 screwed to both ends of the second bidirectional lead screw 22 slide in cooperation with the inner wall of the support frame 21. The insert plate 24 is welded to one side of the adjusting plate 23. One end of the insert plate 24 is ground into a bevel to facilitate insertion into the bottom of the carton for lifting. The spacing of the insert plates 24 is adjustable to adapt to cartons of different lengths.

[0038] Working principle:

[0039] Equipment debugging and parameter setting: According to the specifications of the cartons to be stacked, set the parameters through the PLC controller, start the servo motor on one side of the base plate 1 to drive the first bidirectional lead screw 4 to rotate, and the movable block 5 to slide along the mounting groove so that the distance between the two fixed frames 6 is adjusted to match the width of the carton. Start the servo motor at one end of the support frame 21 to drive the second bidirectional lead screw 22 to rotate, and the adjusting plate 23 to slide along the support frame 21 so that the distance between the two insert plates 24 is adjusted to match the length of the carton. Insert multiple limit blocks 17 (20mm spacing, 100mm total height, matching the height of the carton) into the slot of the connecting plate 16 to complete the debugging.

[0040] Carton conveying and limiting: Start the conveyor 2, place the finished carton at the input end of the conveyor 2, the carton is conveyed to the tail end by the belt, and moves precisely between the two fixed frames 6. Start the first push rod motor 11, the output shaft pushes the T-block 12 to move along the connecting frame 10 towards the carton. The T-block 12 drives the fixed rod 13, slider 14, connecting rod 15 and connecting plate 16 to move synchronously until the limiting block 17 on the connecting plate 16 can fit against the front of the carton, realize the lateral limiting of the carton, and prevent the carton from shifting and falling. At this time, the front end of the carton fits against the support plate 3, forming multi-face positioning to ensure the accurate position of the carton.

[0041] Carton Lifting and Palletizing: Start the second push rod motor 19, the output shaft drives the support frame 21 to move downward along the guide rod 20, so that the insert plate 24 is lowered below the bottom of the carton. Start the servo motor of the support frame 21 again, fine-tune the spacing of the insert plates 24 to ensure that the insert plates 24 are fully inserted into both sides of the bottom of the carton. Start the second push rod motor 19, the output shaft drives the support frame 21 and the insert plate 24 to move upward, lifting the carton to the height of one carton. When the carton is lifted to the target height, the second push rod motor 19 stops, and the insert plate 24 remains in the lifting state. As the next carton is conveyed to the bottom of the insert plate 24, the servo motor drives the second bidirectional lead screw 22 to rotate, causing the two insert plates 24 to move away from each other, and placing the carton stably on top of the carton below, completing one layer of palletizing. After the spacing of the insert plates 24 is increased and reset, the stacked cartons are lifted.

[0042] Cyclic palletizing and equipment maintenance: Repeat the above "convey-limit-lift-palletize" process until the preset number of layers are stacked on the pallet. Place the pallet under the carton for palletizing. During routine maintenance, regularly check the tension of the conveyor belt 2, the lubrication of the bidirectional lead screw, and the operating noise of the push rod motor to ensure stable equipment operation. If the carton specifications are changed, only the parameters need to be reset through the PLC controller. No parts need to be disassembled, making the operation convenient. The whole process realizes fully automated and high-precision carton palletizing, greatly improving efficiency and quality and meeting the needs of large-scale carton production.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A palletizing machine for cardboard box production, comprising a base plate (1), characterized in that, A conveyor (2) is installed on the top of the base plate (1), and a support plate (3) fixed to the top of the base plate (1) is provided at the tail end of the conveyor (2). A first bidirectional lead screw (4) is vertically arranged below the conveyor (2), and movable blocks (5) are screwed to both ends of the rod wall of the first bidirectional lead screw (4). A fixed frame (6) is welded to the top of each of the two movable blocks (5), and a fixed block (7) is welded to the top of each of the two fixed frames (6). A limit mechanism (8) is fixed to the top of the support plate (3), and a lifting mechanism (9) is fixed to the back of the support plate (3). The limit mechanism (8) includes a connecting frame (10), a first push rod motor (11) installed and fixed to the inner wall of one end of the connecting frame (10), a T-shaped block (12) installed and fixed to one end of the first push rod motor (11), and a T-shaped block (12). The lifting mechanism (9) includes a fixed rod (13) that passes through and is fixed, sliders (14) that are slidably connected to both ends of the wall of the fixed rod (13), connecting rods (15) that are welded and fixed to the front of the two sliders (14), connecting plates (16) that are welded and fixed to one end of the two connecting rods (15), and limiting blocks (17) that are evenly distributed on the outer wall of the two connecting plates (16) that are close to each other. The lifting mechanism (9) includes a mounting plate (18), a second push rod motor (19) that is mounted and fixed to the bottom of the mounting plate (18), a support frame (21) that is mounted and fixed to the bottom of the second push rod motor (19), a second bidirectional screw rod (22) that is rotatably connected to the inner wall of both ends of the support frame (21), adjusting plates (23) that are screwed to both ends of the wall of the second bidirectional screw rod (22), and insert plates (24) that are welded and fixed to the outer wall of the two adjusting plates (23) that are close to each other.

2. The palletizing machine for carton production according to claim 1, characterized in that, The bottom of the base plate (1) is fixed with universal wheels at the four corners, and the top of the base plate (1) is provided with an installation groove. The two ends of the first bidirectional screw (4) are rotatably connected to the inner walls of the two ends of the installation groove, and the movable block (5) forms a sliding fit with the installation groove.

3. A palletizing machine for carton production according to claim 1, characterized in that, Servo motors are respectively installed and fixed on one side of the outer wall of the base plate (1) and one end of the outer wall of the support frame (21), and the output shafts of the two servo motors are respectively connected and fixed to one end of the first bidirectional lead screw (4) and the second bidirectional lead screw (22) through couplings.

4. A palletizing machine for carton production according to claim 1, characterized in that, The bottom end of the connecting frame (10) away from the first push rod motor (11) is welded and fixed to the top of the support plate (3), and the T-shaped block (12) and the connecting frame (10) form a sliding fit, and the connecting rod (15) and the fixing block (7) are inserted and slid together.

5. A palletizing machine for cardboard box production according to claim 1, characterized in that, The connecting plate (16) is located on the side of the fixed frame (6) away from the support plate (3), and the outer wall of one side of the connecting plate (16) is provided with equally spaced slots along the vertical direction, and the slots and the limiting block (17) form a plug-in fit.

6. A palletizing machine for carton production according to claim 1, characterized in that, The outer wall of one side of the mounting plate (18) is welded and fixed to the back of the support plate (3), and through holes are provided at both ends of the top of the mounting plate (18). Guide rods (20) that are inserted into the through holes are welded and fixed at both ends of the top of the support frame (21).

7. A palletizing machine for carton production according to claim 1, characterized in that, The adjusting plate (23) and the support frame (21) form a sliding fit, and the length of the insert plate (24) is less than the distance between the inner walls on both sides of the fixed frame (6), and the insert plate (24) is located inside the fixed frame (6).

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