Material packaging assembly line and working method

Abstract

The material packaging assembly line comprises a first conveying mechanism and a second conveying mechanism which are staggered and arranged in parallel, and a reversing conveying mechanism perpendicular to the conveying direction of the first conveying mechanism and the conveying direction of the second conveying mechanism is arranged between the tail end of the first conveying mechanism and the head end of the second conveying mechanism. The first conveying mechanism comprises a weighing section, a correcting section and a first reversing section which are sequentially arranged, the second conveying mechanism comprises a second reversing section and a linear conveying section which are sequentially arranged, the reversing conveying mechanism penetrates through the longitudinal packaging device, the linear conveying section penetrates through the transverse packaging device, a stacking device is arranged on one side of the tail end of the linear conveying section, and the stacking device is arranged on the other side of the tail end of the linear conveying section. According to the assembly line, the packaging work efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of material packaging, and in particular to a material packaging production line and a working method. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] In modern manufacturing, packaging lines are a key link in improving production efficiency and reducing labor costs. However, traditional packaging lines have many limitations, especially in terms of automation, packaging quality consistency, and adaptability to product diversity. The following are the main problems and deficiencies in the current technical field: High dependence on labor: The existing packaging lines rely on manual operations in key links such as feeding, box pressing, unloading, and palletizing, resulting in high labor intensity for employees, limited production efficiency, and high costs; manual or semi-automatic packaging methods are difficult to ensure the consistency of packaging quality, especially after long-term operation, due to factors such as fatigue, the packaging quality is prone to decline; due to the speed and accuracy limitations of manual operation, the overall production efficiency is difficult to improve, especially when facing multi-specification products, the existing equipment is difficult to adapt to the rapidly changing production needs; secondly, there are safety hazards in manually operated packaging lines, especially in high-speed operation and complex operations, the safety of employees is difficult to fully guarantee. In response to the above problems, although there are some automated packaging equipment on the market, they often only solve part of the problem, such as a single automatic packaging or palletizing, and lack an integrated solution. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a material packaging production line and a working method to realize an automated packaging process, improve production efficiency, reduce labor intensity, ensure the consistency of packaging quality, and integrate functions such as weighing and sorting, automatic packaging, and automatic stacking, thereby making up for the defect that current material packaging equipment lacks an integrated solution.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In the first aspect, an embodiment of the present invention provides a material packaging production line, comprising a first conveying mechanism and a second transmission mechanism which are staggered and arranged in parallel, a reversing conveying mechanism which is perpendicular to the conveying directions of the first conveying mechanism and the second conveying mechanism is provided between the end of the first conveying mechanism and the beginning of the second conveying mechanism, the first conveying mechanism comprises a weighing section, a correction section and a first reversing section which are arranged in sequence, the second conveying mechanism comprises a second reversing section and a straight conveying section which are arranged in sequence, wherein the reversing conveying mechanism passes through a longitudinal packaging device, the straight conveying section passes through a transverse packaging device, and a palletizing device is provided on one side of the end of the straight conveying section.

[0007] Optionally, the weighing section adopts a first roller conveyor line, in which a roller frame with multiple conveying rollers is installed on a support through a weighing sensor, and a rejection drive component is provided on one side of the first roller conveyor line. The output movement direction of the rejection drive component is perpendicular to the output movement direction of the first roller conveyor line. The rejection drive component is connected to the pushing component, and an unqualified material receiving mechanism is provided on the other side of the first roller conveyor line.

[0008] Optionally, the correction section adopts a second roller conveyor line. In the second roller conveyor line, the axes of multiple rollers form a set acute angle with the conveying direction of the weighing section to convey the material to the limiting side of the correction section. The limiting side of the correction section is provided with a limiting plate, and the limiting plate is fixed on the frame of the second roller conveyor line.

[0009] Optionally, the first reversing section adopts a third roller conveyor line having the same conveying direction as the weighing section, and a first reversing mechanism perpendicular to the conveying direction of the third roller conveyor line is provided between adjacent conveying rollers of the third roller conveyor line, and the first reversing mechanism is connected to the first lifting mechanism;

[0010] Furthermore, a plurality of first limiting members are provided on a side of the first reversing section away from the reversing transmission mechanism.

[0011] Optionally, the second reversing section adopts a fourth roller conveyor line having the same conveying direction as the weighing section, and a second reversing mechanism perpendicular to the conveying direction of the fourth roller conveyor line is provided between adjacent conveying rollers of the fourth roller conveyor line, and the second reversing mechanism is connected to the second lifting mechanism;

[0012] Furthermore, a plurality of second limiting members are provided on a side of the second reversing section away from the reversing transmission mechanism.

[0013] Optionally, the first reversing section is provided with a first material detection element to detect whether there is material in the first reversing section, the longitudinal packing device is provided with a second material detection element to detect whether there is material in the longitudinal packing device, and the transverse packing device is provided with a third material detection element to detect whether there is material in the transverse packing device.

[0014] Optionally, the longitudinal packaging device includes a first gantry spanning both sides of the reversing conveying mechanism, a first belt tightening mechanism is provided in the middle of the first gantry, first pressure plates are provided on both sides of the first belt tightening mechanism, and the first pressure plates are connected to a first lifting drive member fixed on the top of the first gantry.

[0015] Optionally, the transverse packaging device includes a second gantry arranged on both sides of the straight conveying section, a second belt tightening mechanism is provided in the middle of the second gantry, second pressure plates are provided on both sides of the second belt tightening mechanism, and the second pressure plates are connected to a second lifting drive member fixed on the top of the second gantry.

[0016] Optionally, the palletizing device includes a palletizing robot arm disposed on one side of the end of the linear conveying section, the palletizing robot arm is connected to a clamping mechanism, and the clamping mechanism is used to clamp the material.

[0017] In the second aspect, an embodiment of the present invention provides a working method of the material packaging assembly line described in the first aspect: the weighing section sends the material that meets the weight requirement into the correction section, the correction section drives the material to move and corrects the posture of the material, the corrected material enters the first reversing section, the first reversing section drives the material into the reversing conveying mechanism, the longitudinal packaging device wraps and tightens the longitudinal belt around the material of the first reversing conveying mechanism to achieve longitudinal packaging, the reversing conveying mechanism sends the longitudinally packaged material into the second reversing section, the second reversing section sends the material into the straight conveying section, the straight conveying section sends the material into the transverse packaging device to wrap and tighten the transverse belt around the material to achieve transverse packaging, the transversely packaged material is transported to the end by the straight conveying section, and the material is stacked by the stacking device.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. In the material packaging line of the present invention, the reversing conveying mechanism passes through the longitudinal packaging device, and the straight conveying section passes through the transverse packaging device. The longitudinal packaging device and the transverse packaging device are used to realize the packaging of the longitudinal and transverse belts of the materials, and the automatic palletizing of the materials is realized by the palletizing device. The automatic transmission of the materials is realized by the first transmission mechanism, the second transmission mechanism and the reversing transmission mechanism. The whole material packaging process is automated without manual operation, which reduces the labor intensity of the staff, improves the production efficiency, and ensures the consistency of the packaging quality. The weighing section, the longitudinal packaging device, the transverse packaging device and the palletizing device are integrated in the line, which realizes the integration of weighing and sorting, material transmission, packaging, palletizing and other functions, makes up for the defects of the current packaging equipment, and meets the high requirements of the modern manufacturing industry for the automated packaging line.

[0020] 2. The material packaging line of the present invention is provided with a correction section and a limiter, which can ensure the posture of the material entering the longitudinal packaging device and the transverse packaging device, thereby ensuring the relative position of the strap and the material, and ensuring the packaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0023] Figure 2 is a top view of the correction section of Example 1 of the present invention;

[0024] Figure 3 This is a schematic diagram of the coordination of the first reversing segment, the second reversing segment and the longitudinal packaging device in Embodiment 1 of the present invention;

[0025] Figure 4 is a schematic diagram of a first lifting mechanism in Example 1 of the present invention;

[0026] Figure 5 This is a schematic diagram of a longitudinal packaging device according to Embodiment 1 of the present invention;

[0027] Figure 6 is a schematic diagram of a horizontal packaging device according to embodiment 1 of the present invention;

[0028] Among them, 1. Longitudinal packaging and reloading, 2. Horizontal packaging device, 3. Weighing section, 4. Correction section, 5. Reversing transmission mechanism, 6. Straight transmission section, 7. Rejection drive cylinder, 8. Pushing piece, 9. Guide rod, 10. Unqualified material receiving mechanism, 11. Limiting plate, 12. The third roller conveyor line, 13. The first belt conveyor mechanism, 14. Connecting plate, 15. Lifting frame, 16. Triangle piece, 17. Rotating shaft, 18. Lifting drive cylinder, 19. The first limiting piece, 20. The fourth roller conveyor line, 21. The second belt conveyor mechanism, 22. The second limiting piece, 23. The first gantry, 24. The first lower pressure plate, 25. The first lifting drive cylinder, 26. Guide column, 27. The second gantry, 28. The second lifting drive cylinder, 29. Palletizing robot arm, 30. Clamping mechanism. DETAILED DESCRIPTION

[0029] Example 1

[0030] This embodiment provides a material packaging line, such as Figure 1As shown, it includes a first conveying mechanism and a second conveying mechanism that are arranged in parallel and staggered, the conveying directions of the first conveying mechanism and the second conveying mechanism are parallel, a reversing conveying mechanism is provided between the end of the first conveying mechanism and the head end of the second conveying mechanism, the reversing conveying mechanism passes through the longitudinal packaging device 1, the reversing conveying mechanism serves as a conveying mechanism inside the longitudinal packaging device 1, and is used for receiving materials to be packaged with longitudinal bands and sending out packaged materials, the second conveying mechanism passes through the transverse packaging device 2, the part of the second conveying mechanism corresponding to the transverse packaging device 2 serves as a conveying mechanism inside the transverse packaging device, and is used for receiving materials to be packaged with transverse bands and sending out packaged materials, and a stacking device is provided on one side of the end of the second conveying mechanism, which is used for stacking packaged materials.

[0031] In this embodiment, the conveying direction of the first conveying mechanism and the second conveying mechanism is defined as a first direction, and a direction perpendicular to the first direction is defined as a second direction.

[0032] The first conveying mechanism includes a weighing section 3, a correction section 4 and a first reversing section arranged in sequence, and the first reversing section cooperates with the reversing conveying mechanism 5 to feed the material into the reversing conveying mechanism 5 along the second direction. The second conveying mechanism includes a second reversing section and a straight conveying section 6 arranged in sequence, and the second reversing section is used to receive the material conveyed by the reversing conveying mechanism along the second direction, and feed the material into the straight conveying section along the first direction, and the straight conveying section passes through the transverse packaging device 2, and a stacking device is provided on one side of the end thereof.

[0033] The weighing section 3 adopts a first roller conveyor line, and the first roller conveyor line can adopt existing equipment, including multiple conveying rollers distributed along a first direction, the axes of the conveying rollers are perpendicular to the first direction, the two ends of the conveying rollers are connected to the roller frame, and the four corners of the roller frame are installed on the support through weighing sensors. The conveying rollers are connected to a power mechanism fixed on the roller frame, and the power mechanism can drive the conveying rollers to rotate to convey the materials. The weighing sensor can detect the weight of the materials carried on the weighing section.

[0034] A rejection drive member is provided on one side of the first roller conveyor line, and the rejection drive member adopts a linear motion drive member. In the present embodiment, the rejection drive member adopts a rejection drive cylinder 7, and the axis of the rejection drive cylinder is distributed along the second direction. The cylinder body of the rejection drive cylinder 7 is fixedly connected to the frame body, and its piston rod is connected to a pusher 8. In the present embodiment, the pusher 8 adopts a mesh frame structure.

[0035] Furthermore, in order to guide the movement of the pusher, the pusher is fixed with a guide rod 9, which passes through a guide block provided on the frame, and the guide rod 9 is slidably connected to the guide block to guide the movement of the guide rod and the pusher.

[0036] A defective material receiving mechanism 10 is provided on the other side of the first roller conveyor line, which is arranged opposite to the rejection drive member. In this embodiment, the defective material receiving mechanism 10 can be a roller conveyor line whose conveying direction is along the second direction, and existing equipment is used, and its specific structure is not described in detail here.

[0037] In this embodiment, the material to be packaged is fed into the first roller conveyor line, and the weighing sensor measures the weight of the material. If the weight is qualified, the first roller conveyor line will continue to convey the material backward. If it is unqualified, the rejection drive cylinder 7 will work and push the material into the unqualified material receiving mechanism 10 through the pushing piece.

[0038] like Figure 2 As shown, the correction section 4 adopts a second roller conveyor line, including a plurality of conveying rollers distributed along a first direction. Compared with the traditional roller conveyor line, the axes of the plurality of conveying rollers of the second roller conveyor line are arranged at a set acute angle with the first direction, so that the material moves along the first direction while deviating from the first direction and moving away from the direction of the reversing conveying mechanism. The side of the second roller conveyor line away from the reversing conveying mechanism is a limiting side, and a limiting plate 11 is provided on the limiting side, and the limiting plate 11 is fixed on the roller frame of the second roller conveyor line.

[0039] When the material passes through the correction section 4, under the action of the correction section 4, the side surface where the long side of the material is located can fit with the limiting plate 11, so as to correct the posture of the material.

[0040] like Figure 3-Figure 5 As shown, the first reversing section adopts a third roller conveyor line 12. The third roller conveyor line 12 can adopt an existing roller conveyor line, including a plurality of conveying rollers distributed along a first direction. Among the conveying rollers located in the front plate part, a first reversing mechanism is provided in the space between adjacent conveying rollers. In this embodiment, the first reversing mechanism adopts a first belt conveyor mechanism 13 distributed along the second direction.

[0041] The plurality of first belt transmission mechanisms 13 are all connected to the first lifting mechanism, and the first lifting mechanism can drive the first belt transmission mechanism to rise and fall.

[0042] In this embodiment, the plurality of first belt conveyor mechanisms 13 are all fixedly connected to the lifting frame 15 via the connecting plate 14 . The lifting frame 15 is connected to the lifting drive assembly, and the lifting drive assembly can drive the lifting frame to move up and down.

[0043] The lifting drive assembly includes a triangular piece 16, one corner of the triangular piece 16 is rotatably connected to a rotating shaft 17, both ends of the rotating shaft 17 are fixed to the frame of the third roller conveyor line through shaft seats, the other corner of the triangular piece 16 is hinged to one end of a lifting drive cylinder 18, the other end of the lifting drive cylinder 18 is hinged to the frame of the third roller conveyor line, and the third corner of the triangular piece is hinged to the lifting frame.

[0044] In this embodiment, triangle pieces 16 are hinged at the four corners of the lifting frame, so four triangle pieces 16 are provided, corresponding to four lifting drive cylinders 18, and two rotating shafts 17 are provided, and triangle pieces are hinged at both ends of the rotating shafts 17.

[0045] In other embodiments, the lifting drive assembly uses a lifting cylinder, the axis of the lifting cylinder is vertically arranged, the lifting cylinder is fixed on the frame of the third roller conveyor line, and the lifting cylinder is directly connected to the lifting frame.

[0046] A plurality of first limiting members 19 are provided on a side of the first reversing section away from the second reversing section.

[0047] The structure of the second reversing section is the same as that of the first reversing section, and a fourth roller conveyor line 20 is adopted. In the conveying rollers in the front half of the fourth roller conveyor line 20, a second reversing mechanism is provided in the space between adjacent conveying rollers. The second reversing mechanism adopts a second belt conveyor mechanism 21 distributed along the second direction. The second belt conveyor mechanism 21 is connected to the second lifting mechanism. The second lifting mechanism can drive the second belt conveyor mechanism to rise and fall. The second lifting mechanism has the same structure as the first lifting mechanism and will not be described in detail here.

[0048] A plurality of second limiting members 22 are provided on the side of the second reversing section away from the first reversing section. The first limiting member 19 and the second limiting member 22 have the same structure, both using limiting rods, which are fixed to the support rods, and the support rods are fixed to the frame of the roller conveyor line. A limiting plate is provided at the inner end of the plurality of limiting rods, which is used to contact with the material to limit the material along the second direction.

[0049] A reversing conveying mechanism 5 is provided between the first reversing section and the second reversing section. The conveying direction of the reversing conveying mechanism 5 is perpendicular to the conveying directions of the third roller conveying line and the fourth roller conveying line.

[0050] The reversing conveying mechanism 5 also adopts a roller conveyor line that passes through the longitudinal packaging device, and the height of its top surface is higher than the height of the top surfaces of the third roller conveyor line and the fourth roller conveyor line so that the reversing conveying mechanism can receive the material sent by the first reversing mechanism and send the material to the second reversing mechanism. The longitudinal packaging device includes a first gantry 23, and the first gantry 23 is arranged across the reversing conveying mechanism.

[0051] The first gantry 23 is provided with a first strap tightening mechanism for longitudinally packing the material with a longitudinal strap. The first strap tightening mechanism may be based on existing technology and will not be described in detail herein.

[0052] A first lower pressure plate 24 is provided on both sides of the top of the first strap tightening mechanism, and the first lower pressure plate 24 is connected to the first lifting drive member fixed on the top of the first gantry 23. In this embodiment, the first lifting drive member adopts a first lifting drive cylinder 25, and the cylinder body of the first lifting drive cylinder 25 is fixed on the top of the first gantry 23, and its piston rod is connected to the first lower pressure plate 24. Furthermore, the top surface of the first lower pressure plate 24 is fixedly connected to the bottom end of the guide column 26, and the guide column 26 is slidably connected to the guide sleeve arranged on the top of the first gantry 23, and the movement of the first lower pressure plate is guided by the cooperation of the guide sleeve and the guide column.

[0053] like Figure 6 As shown, a straight conveying section 6 is provided at the rear of the second reversing section. The straight conveying section 6 adopts a fifth roller conveyor line with the conveying direction being the first direction. The fifth roller conveyor line passes through a transverse packaging device. The transverse packaging device includes a second gantry 27. The second gantry 27 is arranged across the straight conveying section. The second gantry 27 is provided with a second belt tightening mechanism for packaging materials with a belt arranged transversely. The second belt tightening mechanism can adopt existing equipment. The second belt tightening mechanism can adopt existing technology, which will not be described in detail herein. Second lower pressure plates are provided on both sides of the top of the second belt tightening mechanism. The second lower pressure plate is connected to a second lifting drive member fixed on the top of the second gantry 27. The second lifting drive member adopts a second lifting drive cylinder 28, which can drive the second lower pressure plate to perform lifting movement.

[0054] The arrangement of the second lifting drive member and the second lower pressing plate is the same as that of the first lifting drive member and the first lower pressing plate, and will not be described in detail here.

[0055] A palletizing device is provided at one end of the linear conveying section. The palletizing device adopts a palletizing robot arm 29. The palletizing robot arm 29 is connected to a clamping mechanism 30. The palletizing robot arm 29 can clamp materials through the clamping mechanism 30 and palletize the materials.

[0056] The stacking robot arm 29 includes a swivel mechanism, which is connected to a lifting mechanism. The lifting part of the lifting mechanism is connected to the first section of the first arm, the end of the first arm is connected to the second arm through a first joint motor, and the end of the second arm is connected to the clamping mechanism through a second joint motor.

[0057] In this embodiment, the lifting mechanism adopts a screw lifting mechanism or a vertically arranged belt transmission mechanism, etc., and those skilled in the art can set it according to actual needs.

[0058] The clamping mechanism 30 includes a fixed clamping plate and a movable clamping plate. The movable clamping plate is connected to a clamping drive cylinder fixed at the end of the palletizing robot arm. The clamping drive cylinder can drive the movable clamping plate to move to realize the switching of the clamping and releasing states of the movable clamping plate and the fixed clamping plate on the material.

[0059] In this embodiment, the third roller conveyor line is provided with a material detection element, which adopts a photoelectric detection element to detect whether there is material on the third roller conveyor line. The frame or the bottom roller conveyor line of the longitudinal packaging device is equipped with a second material detection element to detect whether there is material on the roller conveyor line of the longitudinal packaging device. The frame or the bottom roller conveyor line of the transverse packaging device is equipped with a third material detection element, which adopts a photoelectric detection element to detect whether there is material in the transverse packaging device.

[0060] The weighing sensor, multiple material detection elements, each roller conveyor line, and the horizontal packaging device and the vertical packaging device are all connected to the control system, and each cylinder is also connected to the control system. The material detection element can send a signal to the control system, and the control system controls the operation of each roller conveyor line, the vertical packaging device, the horizontal packaging device, and each cylinder.

[0061] Example 2

[0062] This embodiment provides a working method of the material packaging line described in Embodiment 1:

[0063] The weighing section weighs the material on it through the weighing sensor. When the material weight meets the requirements, the weighing section conveys the material to the correction section. When the material weight does not meet the requirements, the control system controls the rejection drive cylinder to work and uses the pusher to push the unqualified material into the unqualified material receiving mechanism.

[0064] The material entering the correction section moves forward in the first direction under the action of the correction section, and at the same time moves in the direction away from the reversing conveying mechanism until the side of the material fits the limit plate to prevent the material from being skewed. The material continues to be conveyed in the first direction under the action of the correction section and enters the third roller conveying mechanism. When the photoelectric detection element at the head end of the third roller conveying mechanism cannot detect the material, it proves that the material has completely entered the third roller conveyor line. At this time, the first lifting mechanism drives the first reversing mechanism to lift and lift the material from the third roller conveyor line. The first reversing mechanism drives the material to move in the second direction and feeds the material into the longitudinal packaging device. When the longitudinal packaging device detects that the material has entered, the first lower pressure plate moves downward to press the top surface of the material to compact the material. The first belt tightening mechanism works to pack the material longitudinally. After packaging is completed, the reversing conveying mechanism sends the material to the second reversing mechanism. When the photoelectric detection element in the longitudinal packaging device cannot detect the material, the second reversing mechanism stops working and descends until the material cooperates with the fourth roller conveyor line. The fourth roller conveyor line sends the material to the straight conveying section, and the straight conveying section conveys the material. When the transverse packaging device detects the entry of the material, the second lower pressure plate presses down to compact the material, and then the second belt tightening mechanism works to pack the material horizontally. After packaging is completed, the roller conveyor line corresponding to the transverse packaging device sends the material out until the material moves to the end of the straight conveying section. The stacking robot arm takes off the packaged material and then stacks it.

[0065] The assembly line of this embodiment utilizes the longitudinal packaging device and the transverse packaging device to realize the packaging of the longitudinal and transverse straps of the materials, realizes the automatic palletizing of the materials through the palletizing device, realizes the automatic transmission of the materials through the first conveying mechanism, the second conveying mechanism and the reversing conveying mechanism, and the entire material packaging process is automated without manual work, thereby reducing the labor intensity of the staff, improving the production efficiency, and ensuring the consistency of the packaging quality. The assembly line integrates the weighing section, the longitudinal packaging device, the transverse packaging device and the palletizing device, realizing the integration of the functions of weighing and sorting, material transmission, packaging, palletizing, etc., making up for the defects of the current packaging equipment and meeting the high requirements of the modern manufacturing industry for the automated packaging assembly line.

[0066] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A material packaging line, characterized in that: It includes a first conveying mechanism and a second transmission mechanism which are staggered and arranged in parallel. A reversing conveying mechanism which is perpendicular to the conveying directions of the first conveying mechanism and the second conveying mechanism is arranged between the end of the first conveying mechanism and the beginning of the second conveying mechanism. The first conveying mechanism includes a weighing section, a correction section and a first reversing section which are arranged in sequence. The second conveying mechanism includes a second reversing section and a straight conveying section which are arranged in sequence. The reversing conveying mechanism passes through a longitudinal packaging device, and the straight conveying section passes through a transverse packaging device. A stacking device is arranged on one side of the end of the straight conveying section.

2. A material packaging line as claimed in claim 1, characterized in that: The weighing section adopts a first roller conveyor line. In the first roller conveyor line, a roller frame with multiple conveying rollers is installed on a support through a weighing sensor. A rejection drive component is provided on one side of the first roller conveyor line. The output movement direction of the rejection drive component is perpendicular to the output movement direction of the first roller conveyor line. The rejection drive component is connected to the pushing component. A defective material receiving mechanism is provided on the other side of the first roller conveyor line.

3. A material packaging line as claimed in claim 1, characterized in that: The correction section adopts a second roller conveyor line. In the second roller conveyor line, the axes of multiple rollers form a set acute angle with the conveying direction of the weighing section to convey the material to the limiting side of the correction section. The limiting side of the correction section is provided with a limiting plate, which is fixed on the frame of the second roller conveyor line.

4. A material packaging line as claimed in claim 1, characterized in that: The first reversing section adopts a third roller conveyor line with the same conveying direction as the weighing section, and a first reversing mechanism perpendicular to the conveying direction of the third roller conveyor line is provided between adjacent conveying rollers of the third roller conveyor line, and the first reversing mechanism is connected to the first lifting mechanism; Furthermore, a plurality of first limiting members are provided on a side of the first reversing section away from the reversing transmission mechanism.

5. A material packaging line as claimed in claim 1, characterized in that: The second reversing section adopts a fourth roller conveyor line with the same conveying direction as the weighing section, and a second reversing mechanism perpendicular to the conveying direction of the fourth roller conveyor line is arranged between adjacent conveying rollers of the fourth roller conveyor line, and the second reversing mechanism is connected to the second lifting mechanism; Furthermore, a plurality of second limiting members are provided on a side of the second reversing section away from the annular conveying mechanism.

6. A material packaging line as claimed in claim 1, characterized in that: The first reversing section is provided with a first material detection element to detect whether there is material in the first reversing section, the longitudinal packing device is provided with a second material detection element to detect whether there is material in the longitudinal packing device, and the transverse packing device is provided with a third material detection element to detect whether there is material in the transverse packing device.

7. A material packaging line as claimed in claim 1, characterized in that: The longitudinal packaging device includes a first gantry spanning both sides of the reversing conveying mechanism, a first belt tightening mechanism is provided in the middle of the first gantry, first pressure plates are provided on both sides of the first belt tightening mechanism, and the first pressure plates are connected to a first lifting drive member fixed on the top of the first gantry.

8. A material packaging line as claimed in claim 1, characterized in that: The transverse packaging device includes a second gantry arranged on both sides of the straight conveying section, a second belt tightening mechanism is provided in the middle of the second gantry, second pressure plates are provided on both sides of the second belt tightening mechanism, and the second pressure plates are connected to the second lifting drive member fixed on the top of the second gantry.

9. A material packaging line as claimed in claim 1, characterized in that: The palletizing device comprises a palletizing mechanical arm arranged at one side of the end of the straight conveying section, the palletizing mechanical arm is connected to a clamping mechanism, and the clamping mechanism is used for clamping materials.

10. A working method of a material packaging line according to any one of claims 1 to 9, characterized in that: The weighing section sends the material that meets the weight requirement into the correction section. The correction section drives the material to move and corrects the posture of the material. The corrected material enters the first reversing section. The first reversing section drives the material into the reversing conveying mechanism. The longitudinal packaging device wraps and tightens the longitudinal belt around the material of the first reversing conveying mechanism to achieve longitudinal packaging. The reversing conveying mechanism sends the longitudinally packaged material into the second reversing section. The second reversing section sends the material into the straight conveying section. The straight conveying section sends the material into the transverse packaging device to wrap and tighten the transverse belt around the material to achieve transverse packaging. The transversely packaged material is transported to the end by the straight conveying section and stacked by the stacking device.

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