A cartoning machine suitable for products of various specifications

Abstract

The present invention discloses a cartoning machine suitable for products of various specifications, belonging to the field of product packaging technology, comprising a conveyor 1, a conveyor 2 and a robotic arm, the outer walls of both sides of the conveyor 1 are fixed with connecting plates, the surface of the connecting plates is fixed with a fixed box, and the bottom of the fixed box is symmetrically provided with two fixed frames, a detection seat is installed between the conveyor 1 and the conveyor 2, the outer wall of one side of the detection seat is fixed with a mounting frame, the outer wall of one side of the mounting frame is installed with a cylinder 1, and the output end of the cylinder 1 is fixed with a support plate, the surface of the support plate is installed with a weighing sensor, the surface of the weighing sensor is installed with a loading plate, and protective boxes are installed on both sides of the detection seat. The cartoning machine suitable for products of various specifications can meet the packaging of products of different specifications, and at the same time, the packaged products are inspected and classified to ensure the qualified rate of the products after processing.

Description

Technical Field

[0001] The invention belongs to the technical field of product packaging, and in particular relates to a case packing machine suitable for products of various specifications. Background Art

[0002] In modern industrial production, product packaging is a key link in the production line. Its degree of automation and equipment adaptability directly affect production efficiency and cost control. At present, traditional cartoning machines have certain shortcomings in practical applications:

[0003] First, the equipment structure is fixed and cannot adapt to the packaging needs of products of different sizes and shapes. When changing product specifications, the mechanical structure needs to be manually adjusted, which is time-consuming and labor-intensive and has low adjustment accuracy. Second, there is a lack of integrated detection and classification functions. The packaged products need to rely on manual or independent equipment for additional weight, specification and other inspections. The process is cumbersome and prone to missed inspections, resulting in unqualified products flowing into subsequent processes. Summary of the Invention

[0004] The object of the present invention is to provide a case packing machine suitable for products of various specifications, so as to solve the problems raised in the above background technology of being difficult to adapt to the packaging requirements of products of different sizes and shapes and lacking integrated detection and classification functions.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a case packing machine suitable for products of various specifications, comprising a first conveyor, a second conveyor, and a robotic arm, wherein connecting plates are fixed to the outer walls of both sides of the first conveyor, a fixed box is fixed to the surface of the connecting plates, and two fixed frames are symmetrically provided at the bottom of the fixed box, a plurality of conveyor rollers are rotatably connected to the fixed frames, and a piezoelectric vibration sensor is installed below the bearing seat of the conveyor roller;

[0006] A detection seat is installed between the conveyor 1 and the conveyor 2, a mounting bracket is fixed to one outer wall of the detection seat, a cylinder 1 is installed on one outer wall of the mounting bracket, and a support plate is fixed to the output end of the cylinder 1, a weighing sensor is installed on the surface of the support plate, a loading plate is installed on the surface of the weighing sensor, a fixing groove is opened on the surface of the loading plate, and an electromagnetic induction coil is installed in the fixing groove, a packaging box is placed in the detection seat, and a metal mark is fixed to the bottom of the packaging box;

[0007] The outer walls on both sides of the detection seat are provided with through grooves, and a protective box is installed in the through grooves. The bottom wall of the inner cavity of the detection seat is installed with a linear reciprocating motor, and the surface of the workbench of the linear reciprocating motor is installed with a support plate. A data nozzle is installed on the outer wall of one side of the detection seat, the conveying motor of the conveyor 2 is integrated with a permanent magnet synchronous generator, and a lithium battery pack is installed on the outer wall of one side of the detection seat.

[0008] In a further embodiment, a dual-axis motor is installed on the bottom wall of the inner cavity of the fixed box, and guide screws are fixed to both output ends of the dual-axis motor. The thread grooves of the two guide screws are in opposite directions, and the outer wall of the guide screw is threadedly connected to a guide block fixedly connected to the fixed frame.

[0009] In a further embodiment, a driving motor is mounted on an outer wall of one side of the fixing frame, and a driving shaft is fixed to an output end of the driving motor.

[0010] In a further embodiment, a plurality of driving bevel gears are fixed to the outer wall of the driving shaft, and a driven bevel gear meshing with the driving bevel gears is fixed to the outer wall of the upper half of the conveying roller.

[0011] In a further embodiment, a second cylinder is installed on an outer wall of one side of the detection seat, a push plate is fixed to the output end of the second cylinder, and a groove for accommodating the push plate is opened on an inner wall of one side of the detection seat.

[0012] In a further embodiment, a limit plate is movably connected to the protection box, and a plurality of support springs are provided between the protection box and the limit plate, and a buffer plate is fixed to an outer wall of one side of the limit plate.

[0013] In a further embodiment, an extension plate is fixed to an outer wall of one side of the detection seat, and a moving groove for the movement of the packaging box is provided on the outer wall of the detection seat facing the second conveyor and the extension plate.

[0014] In a further embodiment, the outer walls on both sides of the support plate are provided with multiple rotation grooves, and the rotation grooves of the support plate are rollingly connected with limit balls, and the inner walls on both sides of the detection seat and the mounting frame are provided with limit sliding grooves for the limit balls to slide.

[0015] In a further embodiment, a plurality of sliding grooves are provided on the outer walls around the limiting plate, and sliding balls that are in contact with the inner walls of the protective box are rollingly connected in the sliding grooves of the limiting plate.

[0016] Technical effects and advantages of the present invention:

[0017] This case packer, suitable for products of various specifications, uses a piezoelectric vibration sensor to link the conveyor, dual-axis motors, drive motors, conveyor rollers, and robotic arms. When the piezoelectric vibration sensor detects abnormal vibration of the conveyor rollers (such as high-frequency vibration caused by product toppling), the drive motor is immediately linked to reduce speed and adjust the spacing between fixed frames. At the same time, the robotic arm pauses grasping and resumes packaging according to the required product size after the vibration subsides, reducing damage caused by vibration.

[0018] The conveyor motor of Conveyor 2 is integrated with a permanent magnet synchronous generator and a lithium battery pack. When Conveyor 2 is unloaded or decelerating, the permanent magnet synchronous generator converts kinetic energy into electrical energy, which is stored in the lithium battery pack for energy recovery and used to power the load cells and data nozzles of the detection station, making it more energy-efficient.

[0019] The electromagnetic induction coil installed on the surface of the carrier plate cooperates with the metal mark on the bottom of the packaging box to accurately position the packaging box. If the packaging box tilts, the robot arm can quickly adjust the position of the packaging box. In the subsequent packaging process, the product can be quickly and accurately placed in the packaging box, avoiding the impact of the tilted packaging box on the product packaging and improving the packaging efficiency.

[0020] The dual-axis motor drives the lead screw to adjust the spacing between the fixed frames, which can quickly adapt to products of different widths. Combined with the driven bevel gear transmission structure of the conveyor roller, it ensures stable transmission of products of different specifications on the conveyor, eliminating the need for frequent replacement of mechanical parts and significantly improving equipment changeover efficiency.

[0021] The weighing sensor and the loading plate detect the weight of the packaged products in real time. Cylinder 2 and the push plate push qualified products to conveyor 2. Unqualified products are driven by cylinder 1 to retract the support plate and fall into the detection seat. The linear reciprocating motor and the support plate move them to the outside for automatic classification. The data printhead simultaneously sprays the unqualified data to facilitate subsequent processing, significantly reducing manual inspection costs.

[0022] The limit plate, support spring and buffer plate in the protective box form a buffer structure. When unqualified products fall, the buffer plate retracts in the protective box through the sliding ball to prevent the products from being directly impacted and damaged. The limit balls on both sides of the support plate cooperate with the limit slide grooves to ensure that the loading plate moves smoothly during weighing, thereby improving detection accuracy.

[0023] The coordinated operation of robotic arms for automatic case packing, roller-linked transmission, and linear reciprocating motors for precise movement forms a fully automated process, reducing manual intervention and improving packaging efficiency and production continuity. This case packing machine, suitable for products of various specifications, can meet the packaging needs of products of different specifications. At the same time, it can inspect and classify the packaged products to ensure the qualified rate of the products after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the fixed box of the present invention in a cutaway state;

[0027] Figure 3 It is a structural schematic diagram of the fixing frame of the present invention;

[0028] Figure 4 It is a schematic structural diagram of the driving motor and conveying roller of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the detection seat of the present invention;

[0030] Figure 6 This is a schematic structural diagram of the detection base of the present invention without a packaging box;

[0031] Figure 7 An exploded view of the support plate of the present invention;

[0032] Figure 8 An exploded view of the protective box of the present invention;

[0033] Figure 9 It is a structural schematic diagram of the linear reciprocating motor and the support plate of the present invention;

[0034] Figure 10 It is a cross-sectional view of the packaging box of the present invention.

[0035] In the figure: 1. Conveyor 1; 2. Connecting plate; 3. Fixing box; 4. Dual-axis motor; 5. Lead screw; 6. Guide block; 7. Fixing frame; 8. Drive motor; 9. Drive shaft; 10. Active bevel gear; 11. Conveyor roller; 12. Driven bevel gear; 13. Detection seat; 14. Mounting frame; 15. Cylinder 1; 16. Support plate; 17. Weighing sensor; 18. Loading plate; 19. Limiting ball; 20. Cylinder 2; 21. Push plate; 22. Protective box; 23. Limiting plate; 24. Support spring; 25. Buffer plate; 26. Sliding ball; 27. Linear reciprocating motor; 28. Support plate; 29. ​​Extension plate; 30. Data nozzle; 31. Conveyor 2; 32. Robotic arm; 33. Packing box; 34. Piezoelectric vibration sensor; 35. Lithium battery pack; 36. Electromagnetic induction coil; 37. Metal label. DETAILED DESCRIPTION

[0036] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, certain technical features well known in the art are not described to avoid confusion with the present invention.

[0037] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0038] The present invention provides Figure 1-10 The illustrated case packing machine is suitable for a variety of product specifications and includes a conveyor 1, a conveyor 2 31, and a robotic arm 32. The conveyor 1 and the conveyor 2 31 are composed of a frame, a conveying motor, a conveyor belt, and other components. The conveyor 1, the conveyor 2 31, and the robotic arm 32 are all prior art, and their structures are not described in detail here. Connecting plates 2 are fixed to the outer walls of both sides of the conveyor 1, and a fixed box 3 is fixed to the surface of the connecting plate 2. Two fixed frames 7 are symmetrically provided on the bottom of the fixed box 3.

[0039] A dual-axis motor 4 is mounted on the bottom wall of the inner cavity of the fixed box 3 by bolts, and both output ends of the dual-axis motor 4 are fixed with lead screws 5, which are rotatably connected to the inner wall of the fixed box 3 through bearings to ensure the stability of the lead screw 5 during rotation. The thread grooves of the two lead screws 5 are in opposite directions, and the outer wall of the lead screw 5 is threadedly connected to a guide block 6 fixedly connected to the fixed frame 7. A guide groove for movement of the guide block 6 is provided at the bottom of the fixed box 3. A drive motor 8 is mounted on the outer wall of one side of the fixed frame 7 by bolts, and a drive shaft 9 is fixed to the output end of the drive motor 8 through a coupling, and a plurality of active bevel gears 10 are fixed to the outer wall of the drive shaft 9. The drive shaft 9 is rotatably connected to the inner wall of the fixed frame 7 through bearings to ensure the stability of the drive shaft 9 during rotation;

[0040] A plurality of conveying rollers 11 are rotatably connected in the fixed frame 7. A driven bevel gear 12 meshing with the active bevel gear 10 is fixed to the outer wall of the upper half of the conveying roller 11. A piezoelectric vibration sensor 34 is installed under the bearing seat of the conveying roller 11. The piezoelectric vibration sensor 34 is embedded in the inner wall of the fixed frame 7. When the piezoelectric vibration sensor 34 detects abnormal vibration of the conveying roller 11 (such as high-frequency vibration caused by product tipping), it immediately links the drive motor 8 to reduce the speed and adjust the spacing of the fixed frame 7 (error ±0.5mm). At the same time, the robot arm 32 suspends grasping and resumes packaging according to the product size required after the vibration subsides to reduce vibration. To prevent the damage caused, the dual-axis motor 4 drives the lead screw 5 to rotate, and drives the two fixed frames 7 to move toward or oppositely at the same time through the guide block 6, and adjusts the distance between the two fixed frames 7 so that the conveying roller 11 fits the product. At the same time, the driving motor 8 drives the driven bevel gear 12 and the conveying roller 11 to rotate through the active bevel gear 10, so that the product can be transported more smoothly in the conveyor 1. When the system detects that there is no product for a certain period of time, except for the main control circuit, the other components (such as the conveying roller 11 and other components) enter the sleep mode to reduce energy consumption. The piezoelectric vibration sensor 34 maintains low power monitoring and automatically wakes up when encountering a product.

[0041] A detection seat 13 is installed between conveyor 1 and conveyor 2 31 by bolts, and a mounting frame 14 is fixed to the outer wall of one side of the detection seat 13, and a cylinder 15 is installed to the outer wall of one side of the mounting frame 14 by bolts, and a support plate 16 is fixed to the output end of the cylinder 15, and a weighing sensor 17 is installed on the surface of the support plate 16, and a loading plate 18 is installed on the surface of the weighing sensor 17. A movable groove for the support plate 16 and the loading plate 18 to move is provided on the outer wall of the detection seat 13 facing the mounting frame 14, and a plurality of rotating grooves are provided on the outer walls on both sides of the support plate 16, and limiting balls 19 are connected to the rotating grooves of the support plate 16 in a rolling manner. Limiting slides for the sliding of the limiting balls 19 are provided on the inner walls on both sides of the detection seat 13 and the mounting frame 14. The limiting balls 19 slide in the limiting slides to ensure the stability of the support plate 16 during movement;

[0042] A cylinder 20 is installed on the outer wall of one side of the detection seat 13, and a push plate 21 is fixed to the output end of the cylinder 20. A groove for accommodating the push plate 21 is provided on the inner wall of one side of the detection seat 13. A packing box 33 is placed in the detection seat 13, and a movable groove for the packing box 33 to move is provided on the outer wall of the detection seat 13 facing the conveyor 2 31. A fixed groove is provided on the surface of the carrier plate 18, and an electromagnetic induction coil 36 is installed in the fixed groove. A packing box 33 is placed in the detection seat 13, and a metal mark 37 is fixed to the bottom of the packing box 33. When the packing box 33 is placed on the surface of the carrier plate 18, the electromagnetic induction coil 36 and the metal mark 37 at the bottom of the packing box 33 are in contact with each other. The belonging identifiers 37 cooperate with each other to accurately position the packaging box 33. After the packaging box 33 is tilted, the position of the packaging box is quickly adjusted in cooperation with the mechanical arm 32. The mechanical arm 32 puts the product into the packaging box 33. The packaging box 33 and the product can be weighed by the weighing sensor 17. The qualified products are pushed to the conveyor 2 31 by the cylinder 2 20 and the push plate 21, and are transported to the next process by the conveyor 2 31. When encountering unqualified products, the cylinder 15 drives the support plate 16 to retract, so that the support plate 16 moves into the mounting frame 14, and the product falls into the detection seat 13 below the support plate 16;

[0043] The outer walls on both sides of the detection seat 13 are provided with through grooves, and a protective box 22 is installed in the through grooves. A mounting groove matching the protective box 22 is provided on the frame of the conveyor 2 31 to prevent the protective box 22 from restricting the position of the conveyor 2 31. A limit plate 23 is movably connected to the protective box 22, and a plurality of support springs 24 are provided between the protective box 22 and the limit plate 23. The elastic force of the support spring 24 can be set according to actual use requirements. A buffer plate 25 is fixed to the outer wall of one side of the limit plate 23, and the buffer plate 25 faces the outer wall of one side of the packaging box 33. The limiting plate 23 is an inclined surface, and a plurality of sliding grooves are provided on the outer walls thereof. Sliding balls 26 which are in contact with the inner walls of the protective box 22 are rollingly connected in the sliding grooves of the limiting plate 23. The sliding balls 26 can make the limiting plate 23 and the buffer plate 25 move more smoothly in the protective box 22. When the unqualified product is lowered, it contacts the buffer plate 25 to avoid direct lowering and causing damage to the product. Under the action of the weight of the packaging box 33 and the product itself, the buffer plate 25 is pushed to retract into the protective box 22, so that the packaging box 33 slowly descends.

[0044] The bottom wall barrel bolt of the inner cavity of the detection seat 13 is installed with a linear reciprocating motor 27, and the surface of the workbench of the linear reciprocating motor 27 is installed with a support plate 28, and the surface of the support plate 28 is installed with an anti-slip pad. An extension plate 29 is fixed to the outer wall of one side of the detection seat 13. The extension plate 29 can support the support plate 28 to ensure the stability of the support plate 28 when working, and a moving groove for the packaging box 33 to move is opened on the outer wall of the detection seat 13 facing the extension plate 29. The packaging box 33 that fails the inspection falls on the surface of the support plate 28, and the linear reciprocating motor 27 drives the support plate 28 to move, so that the packaging box 33 moves to the outside of the detection seat 13. A data nozzle 3 is installed on the outer wall of one side of the detection seat 13 0, the data nozzle 30 is an existing technology, which can spray the data detected by the weighing sensor 17 on the packaging box 33 of unqualified products to facilitate subsequent processing by staff. An installation groove is provided on the outer wall of one side of the detection base 13, and a display screen is installed in the installation groove to display the data detected by the weighing sensor 17. The conveying motor of the conveyor 2 31 is integrated with a permanent magnet synchronous generator, and a lithium battery pack 35 is installed on the outer wall of one side of the detection base 13. When the conveyor 2 31 is unloaded or decelerated, the permanent magnet synchronous generator converts kinetic energy into electrical energy and stores it in the lithium battery pack 35 to power the weighing sensor 17, data nozzle 30, etc. of the detection base 13, making it more energy-efficient.

[0045] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be implemented by simple programming by technicians in this field. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0046] In the description of the present invention, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] Working principle:

[0048] This cartoning machine is suitable for products of various specifications. When working, the robotic arm 32 places the packaging box 33 on the surface of the loading plate 18. The electromagnetic induction coil 36 cooperates with the metal mark 37 at the bottom of the packaging box 33 to accurately position the packaging box 33. After the packaging box 33 is tilted, the position of the packaging box is quickly adjusted with the help of the robotic arm 32. The dual-axis motor 4 is started according to the product specifications, and the fixed frame 7 is driven by the lead screw 5 to adjust the spacing so that the conveying roller 11 fits the product. The driving motor 8 drives the conveying roller 11 to rotate through the active bevel gear 10 and the driven bevel gear 12. After the product is transported to the appropriate position by the conveyor 1, the robotic arm 32 grabs the product and accurately places it into the packaging box 33 in the detection seat 13;

[0049] The weighing sensor 17 performs weight detection on the packaging box 33. If the weight is qualified, the cylinder 2 20 drives the push plate 21 to push the packaging box 33 to the conveyor 2 31, and the conveyor 2 31 transports it to the next process. If it is unqualified, the cylinder 15 drives the support plate 16 to retract into the mounting frame 14, and the packaging box 33 and the product fall and hit the buffer plate 25 in the protective box 22. The buffer plate 25 retracts and buffers under the action of the support spring 24, and then the packaging box 33 falls onto the pallet 28. The linear reciprocating motor 27 drives the pallet 28 to transfer the unqualified products to the outside of the detection seat 13. The data nozzle 30 sprays the detection data on the packaging box 33 for subsequent processing. Repeat the above steps until all products are packaged.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cartoning machine suitable for products of various specifications, comprising a conveyor 1 (1), a conveyor 2 (31) and a robotic arm (32), characterized in that: Connecting plates (2) are fixed to the outer walls of both sides of the conveyor (1), a fixing box (3) is fixed to the surface of the connecting plate (2), and two fixing frames (7) are symmetrically provided at the bottom of the fixing box (3), a plurality of conveying rollers (11) are rotatably connected in the fixing frames (7), and a piezoelectric vibration sensor (34) is installed below the bearing seat of the conveying roller (11); A detection seat (13) is installed between the conveyor 1 (1) and the conveyor 2 (31), a mounting frame (14) is fixed to one side outer wall of the detection seat (13), a cylinder 1 (15) is installed to one side outer wall of the mounting frame (14), and a support plate (16) is fixed to the output end of the cylinder 1 (15), a weighing sensor (17) is installed on the surface of the support plate (16), a loading plate (18) is installed on the surface of the weighing sensor (17), a fixing groove is opened on the surface of the loading plate (18), and an electromagnetic induction coil (36) is installed in the fixing groove, a packaging box (33) is placed in the detection seat (13), and a metal mark (37) is fixed to the bottom of the packaging box (33); The outer walls on both sides of the detection seat (13) are provided with through grooves, and a protective box (22) is installed in the through grooves, the bottom wall of the inner cavity of the detection seat (13) is installed with a linear reciprocating motor (27), and the surface of the workbench of the linear reciprocating motor (27) is installed with a support plate (28), a data nozzle (30) is installed on the outer wall of one side of the detection seat (13), the conveying motor of the conveyor 2 (31) is integrated with a permanent magnet synchronous generator, and a lithium battery pack (35) is installed on the outer wall of one side of the detection seat (13).

2. A case packing machine suitable for products of various specifications according to claim 1, characterized in that: A dual-axis motor (4) is installed on the bottom wall of the inner cavity of the fixed box (3), and guide screws (5) are fixed to the two output ends of the dual-axis motor (4), the thread grooves of the two guide screws (5) are in opposite directions, and the outer wall of the guide screw (5) is threadedly connected to a guide block (6) fixedly connected to the fixed frame (7).

3. A case packing machine suitable for products of various specifications according to claim 2, characterized in that: A driving motor (8) is mounted on an outer wall of one side of the fixing frame (7), and a driving shaft (9) is fixed to the output end of the driving motor (8).

4. A case packing machine suitable for products of various specifications according to claim 3, characterized in that: A plurality of driving bevel gears (10) are fixed to the outer wall of the driving shaft (9), and a driven bevel gear (12) meshing with the driving bevel gears (10) is fixed to the outer wall of the upper half of the conveying roller (11).

5. The cartoning machine suitable for products of various specifications according to claim 1, characterized in that: A second cylinder (20) is installed on an outer wall of one side of the detection seat (13), a push plate (21) is fixed to the output end of the second cylinder (20), and a groove for accommodating the push plate (21) is opened on an inner wall of one side of the detection seat (13).

6. The cartoning machine suitable for products of various specifications according to claim 1, characterized in that: A limit plate (23) is movably connected to the protection box (22), and a plurality of support springs (24) are provided between the protection box (22) and the limit plate (23). A buffer plate (25) is fixed to an outer wall of one side of the limit plate (23).

7. The cartoning machine suitable for products of various specifications according to claim 5, characterized in that: An extension plate (29) is fixed to one side outer wall of the detection seat (13), and a movable groove for the packaging box (33) to move is provided on the outer wall of the detection seat (13) facing the second conveyor (31) and the extension plate (29).

8. The cartoning machine suitable for products of various specifications according to claim 1, characterized in that: The outer walls on both sides of the support plate (16) are provided with a plurality of rotation grooves, and the rotation grooves of the support plate (16) are rollingly connected with limit balls (19), and the inner walls on both sides of the detection seat (13) and the mounting frame (14) are provided with limit sliding grooves for the limit balls (19) to slide.

9. The cartoning machine applicable to products of various specifications according to claim 6, characterized in that: The outer walls of the limiting plate (23) are all provided with a plurality of sliding grooves, and sliding balls (26) that are in contact with the inner wall of the protection box (22) are rollingly connected in the sliding grooves of the limiting plate (23).

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