Automatic bundling system and method for cylindrical materials

Abstract

The present invention discloses an automatic bundling system and method for cylindrical materials. The automatic bundling system includes a conveying device, a horizontal bundling mechanism, and a longitudinal bundling mechanism. The conveying device is used to convey the materials to be bundled to the horizontal bundling station and the longitudinal bundling station in sequence. The horizontal bundling mechanism is used to automatically bundle at least one horizontal bundling strap on the cylindrical materials. The longitudinal bundling mechanism is used to automatically bundle at least one longitudinal bundling strap on each cylindrical material. One end of the longitudinal bundling strap passes around the top surface of the corresponding cylindrical material and then passes through a pallet to tighten and fix it. The longitudinal bundling strap is pressed against the outer surface of the horizontal bundling strap. The longitudinal bundling strap is eccentrically arranged relative to the center line of the corresponding cylindrical material. The above-mentioned automatic bundling system for cylindrical materials can realize fully automatic bundling of cylindrical materials. It not only has a high degree of automation and high bundling efficiency, but also greatly improves the stability and reliability of bundling of cylindrical materials.

Description

Technical Field

[0001] The present invention belongs to the technical field of packaging, and in particular relates to an automatic bundling system and method for cylindrical materials. Background Art

[0002] As we all know, in industrial production, the transportation of cylindrical materials is often involved, and most cylindrical materials are chemical materials. In order to reduce the risk of loose packages and leakage of materials during transportation, it is necessary to stably bundle the cylindrical materials.

[0003] Currently, traditional bundling of cylindrical materials is mostly done manually by operating bundling tools, which has the disadvantages of low work efficiency and poor bundling stability. Summary of the Invention

[0004] The present invention aims to provide an automatic bundling system for cylindrical materials to solve the problems of low efficiency and poor bundling stability in the prior art of bundling cylindrical materials. In addition, the present invention also provides a bundling method based on the automatic bundling system for cylindrical materials.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] An automatic bundling system for cylindrical materials includes a conveying device, a horizontal bundling mechanism and a longitudinal bundling mechanism, wherein:

[0007] The conveying device is used to convey the materials to be bundled to the horizontal bundling station and the longitudinal bundling station in sequence. The materials to be bundled include a pallet and at least two cylindrical materials. At least two cylindrical materials are placed vertically on the pallet against each other.

[0008] The horizontal strapping mechanism is provided at the horizontal strapping station and is used for automatically strapping at least one horizontal strapping belt on at least two cylindrical materials to bundle the at least two cylindrical materials into one.

[0009] The longitudinal strapping mechanism is arranged at the longitudinal strapping station, and is used to automatically strap at least one longitudinal strapping belt on each of the cylindrical materials. One end of the longitudinal strapping belt passes around the top surface of the corresponding cylindrical material and then passes through the pallet to be tightened, strapped and fixed, so as to fix the cylindrical material on the pallet longitudinally. The longitudinal strapping belt is pressed against the outer surface of the horizontal strapping belt. The longitudinal strapping belt is eccentrically arranged relative to the center line of the corresponding cylindrical material. The part of the longitudinal strapping belt that passes through the top surface of the cylindrical material is arranged close to the center of the pallet, and the part of the longitudinal strapping belt that passes through the pallet is arranged away from the center of the pallet.

[0010] Optionally, the longitudinal strapping is tied and fixed to the corresponding cylindrical material under the action of a preset tightening force and the length of the strapping used is the shortest. The portion of the longitudinal strapping that passes through the top surface of the cylindrical material is arranged close to the center of the pallet, and the portion of the longitudinal strapping that passes through the pallet is arranged away from the center of the pallet.

[0011] Optionally, the horizontal strapping mechanism includes a first frame, a first feeding assembly, a first lifting member, a first lifting drive member, a horizontal strapping machine head and a horizontal strapping channel, the first feeding assembly is used to provide a horizontal strapping belt to the horizontal strapping machine head, the first frame is arranged on the outside of the horizontal strapping station of the conveying device, the first lifting member can be lifted and assembled on the first frame, the fixed end of the first lifting drive member is installed on the first frame, the movable end of the first lifting drive member is connected to the first lifting member, the horizontal strapping machine head and the horizontal strapping channel are arranged on the first lifting member, the first lifting drive member drives the first lifting member to move to a preset height, the horizontal strapping channel is located on the periphery of all the cylindrical materials, and the horizontal strapping machine head is used to automatically tighten, weld and cut the horizontal strapping belt in the horizontal strapping channel to bundle the cylindrical materials in the horizontal strapping station into one.

[0012] Optionally, the horizontal strapping mechanism further includes a square frame, which is fixed on the first lifting member and located directly above the conveying device, and the horizontal belt threading channel is installed on the square frame.

[0013] Optionally, the longitudinal strapping mechanism is located at the longitudinal strapping station at the discharge end of the conveying device, and the longitudinal strapping mechanism includes a second feeding assembly, a rotating assembly, a longitudinal strapping assembly and a longitudinal arrow threading assembly, wherein:

[0014] The second feeding assembly is used to provide a longitudinal strapping tape to the longitudinal strapping assembly,

[0015] The rotating assembly is arranged on one side of the longitudinal strapping assembly, and receives and carries the pallet and cylindrical materials strapped by the horizontal strapping mechanism. The rotating assembly is also used to drive the pallet to rotate a preset angle so that at least two cylindrical materials are rotated to the longitudinal strapping position in sequence.

[0016] The longitudinal strapping assembly includes a second frame, a longitudinal strapping head and a longitudinal strapping channel. The longitudinal strapping head is installed on the second frame and is located above the rotating assembly. The bottom of the longitudinal strapping channel is disconnected. The arrow-piercing assembly is used to pass through the pallet after the pallet is rotated to a preset angle to close the longitudinal strapping channel. The longitudinal strapping head is used to release the longitudinal strapping released by the second feeding assembly into the longitudinal strapping channel. The longitudinal strapping head is also used to tighten, weld and cut the longitudinal strapping in the longitudinal strapping channel to fix the cylindrical material in the longitudinal strapping position on the pallet longitudinally.

[0017] Optionally, the longitudinal strapping assembly further includes a second lifting member and a second lifting drive member, wherein the second lifting member can be lifted and assembled on the second frame, the fixed end of the second lifting drive member is installed on the second frame, and the movable end of the second lifting drive member is connected to the second lifting member, the longitudinal strapping machine head is installed on the second lifting member, and the second lifting drive member drives the second lifting member to move up and down relative to the second frame to drive the longitudinal strapping machine head to move up and down, the longitudinal strapping assembly further includes a strapping drive member and a sliding seat, the fixed end of the strapping drive member is installed on the second lifting member, the movable end of the strapping drive member is connected to the sliding seat, and the sliding seat can be movably assembled on the second lifting member in the front and rear direction, the longitudinal strapping machine head is installed on the sliding seat, and the strapping drive member drives the sliding seat to reciprocate in the front and rear direction so that the longitudinal strapping machine head approaches or moves away from the center of the pallet, and when the longitudinal strapping machine head tightens the longitudinal strapping belt, the strapping drive member is in a non-working state, so that the sliding seat can move back and forth relative to the second lifting member.

[0018] Optionally, the second frame is a gantry frame, and the longitudinal belt threading channel includes a top belt threader and two lateral belt threaders, the top belt threader is installed on the second lifting member, and the two lateral belt threaders are installed on both sides of the second frame, and the arrow threading assembly includes an arrow threading drive and a movable belt threader, and the arrow threading drive drives the movable belt threader to approach the bottom ends of the two lateral belt threaders to close the bottom of the longitudinal belt threading channel.

[0019] Optionally, the rotating assembly includes a rotating drive and a rotating table, the tray is placed on the rotating table, and the rotating drive drives the rotating table to rotate.

[0020] Optionally, the pallet adopts a standard pallet, which includes an upper frame, a lower frame and four pallet corner pieces. The four pallet corner pieces are respectively arranged between the four corners of the upper frame and the lower frame, and the longitudinal strapping passes through the upper frame and the lower frame and is located on the inner side of the corresponding pallet corner piece.

[0021] A method for automatically bundling cylindrical materials, which uses the above-mentioned automatic bundling system for cylindrical materials to bundle at least two cylindrical materials, comprises the following steps:

[0022] S1, the conveying device automatically transports the pallet and at least two cylindrical materials to the horizontal strapping station,

[0023] S2, the horizontal strapping mechanism automatically straps at least two cylindrical materials at the horizontal strapping station with two horizontal strapping belts in the height direction to bundle all the cylindrical materials into one.

[0024] S3, the conveying device automatically conveys the pallet and at least two cylindrical materials bundled by the horizontal strapping mechanism to the rotating assembly of the longitudinal strapping mechanism.

[0025] S4, the rotating assembly drives the pallet to rotate to a preset angle so that one of the cylindrical materials is in the longitudinal strapping position, and the longitudinal strapping mechanism automatically straps the cylindrical material in the longitudinal strapping position with a longitudinal strapping belt. The specific strapping form of the longitudinal strapping belt is as follows: one end of the longitudinal strapping belt passes around the top surface of the corresponding cylindrical material and then passes through the pallet to be tightened and fixed, the longitudinal strapping belt is pressed against the outer surface of the horizontal strapping belt, the longitudinal strapping belt is eccentrically arranged relative to the center line of the corresponding cylindrical material, the part of the longitudinal strapping belt passing through the top surface of the cylindrical material is arranged close to the center of the pallet, and the part of the longitudinal strapping belt passing through the pallet is arranged away from the center of the pallet, and the longitudinal strapping belt is strapped and fixed to the corresponding cylindrical material under the action of the preset tightening force, and the length of the strapping belt used is the shortest;

[0026] S5, the rotating assembly drives the tray to rotate to the preset angle again, so that the next cylindrical material moves to the longitudinal strapping position, and the longitudinal strapping mechanism works again to automatically strap the cylindrical material in the longitudinal strapping position with a longitudinal strapping belt, and so on, until all the cylindrical materials are strapped with longitudinal strapping belts.

[0027] The beneficial effect of the present invention is that, compared with the prior art, the automatic bundling system for cylindrical materials can realize fully automatic bundling of cylindrical materials, which not only has a high degree of automation and high bundling efficiency; but also greatly improves the stability and reliability of bundling of cylindrical materials, and greatly reduces the risk of strapping falling off during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 2 is a schematic diagram of the three-dimensional structure of the automatic bundling system for cylindrical materials provided by an embodiment of the present invention;

[0029] Figure 2 is a schematic diagram of the three-dimensional structure of a horizontal strapping mechanism provided by an embodiment of the present invention;

[0030] Figure 3 2 is a schematic diagram of the three-dimensional structure of the longitudinal strapping mechanism provided by an embodiment of the present invention;

[0031] Figure 4 1 is a schematic diagram of the longitudinal bundling state of the longitudinal bundling mechanism provided by an embodiment of the present invention;

[0032] Figure 5 1 is a schematic diagram of the longitudinal bundling mechanism provided by an embodiment of the present invention after longitudinal bundling;

[0033] Figure 6 This is a schematic diagram of a state in which the sliding seat of the longitudinal strapping mechanism provided by an embodiment of the present invention slides forward when tightening the longitudinal strapping belt;

[0034] Figure 7 It is a schematic diagram of the state of cylindrical materials after being bundled provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0036] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosure of the present invention. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be a central component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there can also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the relevant listed items.

[0037] See also Figures 1 to 7As shown, an embodiment of the present invention provides an automatic bundling system for cylindrical materials, which includes a conveying device 1, a horizontal bundling mechanism 2 and a longitudinal bundling mechanism 3. The conveying device 1 is used to convey the materials to be bundled to the horizontal bundling station and the longitudinal bundling station in sequence. The materials to be bundled include a pallet 4 and at least two cylindrical materials 5. The at least two cylindrical materials 5 are placed vertically on the pallet 4 against each other. The horizontal bundling mechanism 2 is arranged at the horizontal bundling station. The horizontal bundling mechanism 2 is used to automatically bundle at least one horizontal bundling belt 6 on the at least two cylindrical materials 5 to bundle the at least two cylindrical materials 5 into one. The longitudinal bundling mechanism 3 is arranged at the longitudinal bundling station. The longitudinal bundling mechanism 3 is used to automatically bundle a longitudinal bundling belt 7 on each cylindrical material 5.

[0038] As an embodiment, the pallet 4 adopts a square standard pallet for international logistics. The pallet 4 includes an upper frame 40, a lower frame 41 and four pallet corner pieces 42. The four pallet corner pieces 42 are respectively arranged between the four corners of the upper frame 40 and the lower frame 41 to connect the upper frame 40 and the lower frame 41 into one.

[0039] Four cylindrical materials 5 are placed on each tray 4. The four cylindrical materials 5 are arranged in a square shape as a whole and placed vertically on the tray 4 against each other. Each cylindrical material 5 is against two adjacent cylindrical materials 5 to maximize the use of the space of the tray 4.

[0040] Preferably, the conveying device 1 adopts a roller conveyor line.

[0041] As an embodiment, the horizontal strapping mechanism 2 includes a first frame 20, a first lifting member 21, a first lifting drive member 22, a horizontal strapping head 23, a horizontal belt threading channel 24, a square frame 25 and a first feeding assembly 26. The first feeding assembly 26 is used to provide the horizontal strapping belt 6 to the horizontal strapping head 23. The first frame 20 is arranged on the outside of the horizontal strapping station of the conveying device 1. The first lifting member 21 can be lifted and assembled on the first frame 20. The fixed end of the first lifting drive member 22 is installed on the first frame 20. The movable end of the first lifting drive member 21 is connected to the first lifting member 21. The horizontal strapping head 23 is fixedly installed on the first frame 20. On a lifting member 21, a square frame 25 is fixedly installed on the first lifting member 21 and is located directly above the conveying device 1. The square frame 25 has an opening to avoid four cylindrical materials 5. The horizontal belt threading channel 24 is installed on the square frame 25 so that the horizontal belt threading channel 24 is located on the periphery of the four cylindrical materials 5 during horizontal bundling. The horizontal strapping head 23 is used to automatically tighten, weld and cut the horizontal strapping belt 6 in the horizontal belt threading channel 24. The four cylindrical materials 5 are horizontally bundled through the cooperation of the horizontal strapping head 23 and the horizontal belt threading channel 24, so that the four cylindrical materials 5 in the horizontal strapping station are bundled into one.

[0042] Preferably, the four cylindrical materials 5 are bundled together in the horizontal direction by two horizontal strapping belts 6. The two horizontal strapping belts 6 are arranged at intervals along the height direction and are respectively bundled at the upper and lower parts of the outer walls of the four cylindrical materials 5 to ensure the stability and reliability of the horizontal bundling.

[0043] As an embodiment, the longitudinal strapping mechanism 3 is arranged at the longitudinal strapping station at the discharge end of the conveying device 1. The longitudinal strapping mechanism 3 includes a second loading component 30, a rotating component 31, a longitudinal strapping component 32 and a longitudinal arrow threading component 33. The second loading component 30 is used to provide the longitudinal strapping belt 7 to the longitudinal strapping component 32. The rotating component 31 is arranged at the lower side of the longitudinal strapping component 32. The rotating component 31 is used to support the tray 4 and drive the tray 4 to rotate a preset angle so that the four cylindrical materials 5 are rotated to the longitudinal strapping position in sequence.

[0044] As an embodiment, the longitudinal strapping assembly 32 includes a second frame 320, a longitudinal strapping head 321 and a longitudinal strapping channel. The longitudinal strapping head 321 is installed on the second frame 320 and is located above the rotating assembly 31. The bottom of the longitudinal strapping channel is disconnected. The longitudinal arrow assembly 33 is used to pass through the pallet 4 after the pallet 4 is rotated to a preset angle to close the bottom of the longitudinal strapping channel. The longitudinal strapping head 321 is used to release the longitudinal strapping 7 released by the second loading assembly 30 into the longitudinal strapping channel. The longitudinal strapping head 321 is also used to tighten, weld and cut the longitudinal strapping 7 in the longitudinal strapping channel to fix the cylindrical material 5 in the longitudinal strapping position on the pallet 4 longitudinally.

[0045] As an embodiment, the longitudinal strapping assembly 32 further includes a second lifting member 322 and a second lifting drive member 323. The second lifting member 322 can be lifted and assembled on the second frame 320. The fixed end of the second lifting drive member 323 is installed on the second frame 320. The movable end of the second lifting drive member 323 is connected to the second lifting member 322. The longitudinal strapping head 321 is installed on the second lifting member 322. The second lifting drive member 323 drives the second lifting member 322 to rise and fall relative to the second frame 320 to drive the longitudinal strapping head 321 to rise and fall. The longitudinal strapping assembly 32 further includes a strapping drive member (see FIG. The strapping drive member 321 is mounted on the second lifting member 322 and the sliding seat 324 is connected to the second lifting member 322. The sliding seat 324 can be mounted on the second lifting member 322 so as to be movable in the front-to-rear direction. The longitudinal strapping machine head 321 is mounted on the sliding seat 324. The strapping drive member drives the sliding seat 324 to move back and forth in the front-to-rear direction so that the longitudinal strapping machine head 321 is close to or away from the center of the pallet 4. When the longitudinal strapping machine head 321 tightens the longitudinal strapping belt 7, the strapping drive member is in a non-working state so that the sliding seat 324 can move back and forth relative to the second lifting member 322.

[0046] As an embodiment, the second frame 320 is a gantry frame, and the longitudinal belt threading channel includes a top belt threader 325 and two side belt threaders 326. The top belt threader 325 is installed on the second lifting member 322, and the two side belt threaders 326 are installed on the two inner sides of the second frame 320. The longitudinal arrow threading assembly 33 includes an arrow threading drive member 330 and a movable belt threader 331. When the longitudinal strapping belt 7 is fed, the arrow threading drive member 330 drives the movable belt threader 331 to approach the bottom ends of the two side belt threaders 326 to close the bottom of the longitudinal belt threading channel.

[0047] As an embodiment, the second loading assembly 30 includes a material tray 300, a belt guide roller assembly 301 and a loading channel 302. A rolled strapping tape is provided on the material tray 300. The strapping tape on the material tray 300 is introduced into the longitudinal strapping machine head 321 through the belt guide roller assembly 301 and the loading channel 302 to realize automatic loading of the longitudinal strapping tape 7.

[0048] As an embodiment, the rotating assembly 31 includes a rotating drive and a rotating table 310. The rotating drive drives the rotating table 310 to rotate to rotate the pallet 4 to a preset angle, thereby rotating the four cylindrical materials 5 on the pallet 4 to the longitudinal bundling position in sequence.

[0049] As an embodiment, a material unloading conveying device 311 is also provided on the rotating table 310, and the pallet 4 and four cylindrical materials 5 are placed on the material unloading conveying device 311. The material unloading conveying device 311 is used to automatically convey the bundled pallet 4 and cylindrical materials 5 to the next process to realize automatic unloading after bundling.

[0050] As an embodiment, a temporary storage device 8 is also provided on the outside of the unloading conveying device 311. The unloading conveying device 311 automatically conveys the bundled pallets 4 and cylindrical materials 5 to the temporary storage device 8 for temporary storage, so as to realize continuous operation of the bundling device and improve production efficiency.

[0051] As an embodiment, after the longitudinal strapping head 321 straps, the longitudinal strapping belt 7 is pressed against the outer side of the horizontal strapping belt 6. The longitudinal strapping belt 7 is eccentrically arranged relative to the vertical center line of the corresponding cylindrical material 5. The longitudinal strapping belt 7 is strapped and fixed to the corresponding cylindrical material 5 under the action of the preset tightening force of the longitudinal strapping head 321, and the length of the strapping belt used is the shortest. The part of the longitudinal strapping belt 7 that passes through the top surface of the cylindrical material 5 is arranged close to the center of the corresponding pallet 4, and the part of the longitudinal strapping belt 7 that passes through the pallet 4 is arranged away from the center of the corresponding pallet 4.

[0052] Preferably, the strapping drive member adopts a cylinder. When the longitudinal strapping machine head 321 tightens the longitudinal strapping belt 7, the strapping drive member is de-energized, and the movable rod of the strapping drive member can freely extend and retract, thereby ensuring that the sliding seat 324 can move forward and backward relative to the second lifting member 322, so that the longitudinal strapping machine head 321 can move toward the center of the pallet 4 when tightening the longitudinal strapping belt 7, so as to ensure that the length of the longitudinal strapping belt 7 used when tightening the strapping is the shortest.

[0053] The working principle of the above-mentioned automatic strapping system for cylindrical materials is as follows:

[0054] S1, transport the pallet 4 and four cylindrical materials 5 to the conveying device 1, and the conveying device 1 automatically transports the pallet 1 and four cylindrical materials 5 to the horizontal strapping station.

[0055] S2, the first lifting drive member 22 drives the first lifting member 21 to descend to a preset height, so that the square frame 25 and the horizontal belt passage 24 are located outside the four cylindrical materials 5, and the horizontal strapping head 23 cooperates with the horizontal belt passage 24 to horizontally strap the four cylindrical materials 5. According to actual needs, by changing the lifting height of the first lifting member 21, the four cylindrical materials 5 can be strapped at different heights.

[0056] S3, after the horizontal bundling is completed, the first lifting member 22 drives the first lifting member 21 to return to its original position, and the conveying device 1 automatically conveys the tray 1 and the four cylindrical materials 5 to the unloading conveying device 311.

[0057] S4, the rotary drive member drives the rotating table 310 to rotate 45°, so that one corner of the tray 4 forms a 45° angle with the second frame 320;

[0058] S5, the arrow-threading driving member 330 drives the movable belt threader 331 to move to the front limit position close to the bottom ends of the two lateral belt threaders 326, so that the movable belt threader 331 passes through a corner of the tray 4 and closes the entire longitudinal belt threading channel;

[0059] S6, the second lifting member 323 drives the second lifting member 322 to descend to a preset height, so as to drive the longitudinal strapping head 321 to descend to a preset height, and the longitudinal strapping belt 7 runs;

[0060] S7, the strapping drive member drives the longitudinal strapping head 321 to move forward to the center position of the top surface of the corresponding cylindrical material 5, and the second lifting drive member 323 drives the longitudinal strapping head 321 to descend again to fit closely to the top surface of the cylindrical material 5. After the longitudinal strapping head 321 collects, tightens, welds and cuts the longitudinal strapping belt 7, the door panel of the longitudinal strapping head 321 opens and the strapping belt is released. When the strapping belt is tightened, the strapping drive member is in a non-working state. Due to the continuous tightening of the longitudinal strapping belt 7, the longitudinal strapping head 321 is driven to move closer to the center of the pallet 4. While implementing eccentric strapping, it can ensure that the longitudinal strapping belt 7 is bound to a corner of the cylindrical material 5 with the minimum length;

[0061] In step S8, the second lifting drive 323 and the strapping drive cooperate to move the longitudinal strapping head 321 to the initial position, and the rotary drive then drives the rotary table 310 to rotate 90°, repeating the strapping action of steps S5 to S7 until all four cylindrical materials 5 and the four corners of the tray 4 are strapped.

[0062] Please refer again Figure 7 As shown, it can be seen that the four cylindrical materials 5 are firstly bundled together in the horizontal direction by two horizontal strapping belts 6, and then a longitudinal strapping belt 7 is tied on each cylindrical material 5 to bundle each cylindrical material 5 and the pallet 4 into one. The longitudinal strapping belt 7 adopts an eccentric packaging and bundling method. After the longitudinal strapping belt 7 is passed through, when it is tightened by a preset tightening force, the longitudinal strapping belt 7 on the top surface of the cylindrical material 5 will stick to the cylindrical material 5 under the action of the preset tightening force and slide toward the center of the pallet 4. Because the longitudinal strapping belt 7 is located on the outside of the two horizontal strapping belts 6, the longitudinal strapping belt 7 will eventually press against the outer side surfaces of the two horizontal strapping belts 6 when sliding toward the center of the pallet 4; at the same time, the longitudinal strapping belt 7 passed through the pallet 4 will stick to the bottom surface of the upper frame 40 under the action of the preset tightening force and slide away from the center of the pallet 4. Because the longitudinal strapping belt 7 is located on the inner side of the pallet corner piece 42, the longitudinal strapping belt 7 can no longer slide when it slides to the inner wall of the pallet corner piece 42 at most.

[0063] During the tightening process of the longitudinal strapping 7, the two horizontal strapping 6 are deformed by the tightening force of the longitudinal strapping 7 until the longitudinal strapping 7 reaches its shortest length under the action of the preset tightening force, and the strapping is then secured. After being secured, the longitudinal strapping 7 on the top surface of the cylindrical material 5 is limited by the top surface of the cylindrical material 5 and cannot slide away from the center of the pallet 4. The longitudinal strapping 7 is limited by the two horizontal strapping 6 and cannot slide toward the center of the pallet 4. At the same time, the longitudinal strapping 7 can always maintain a locking force on the cylindrical material 5, thereby ensuring the stability and reliability of the strapping of the longitudinal strapping 7.

[0064] The above embodiments merely illustrate the basic principles and features of the present invention. The present invention is not limited to these examples. Various modifications and variations are possible without departing from the spirit and scope of the present invention. Such modifications and variations are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic bundling system for cylindrical materials, characterized in that: The automatic bundling system for cylindrical materials includes a conveying device, a horizontal bundling mechanism and a longitudinal bundling mechanism, wherein: The conveying device is used to convey the materials to be bundled to the horizontal bundling station and the longitudinal bundling station in sequence. The materials to be bundled include a pallet and at least two cylindrical materials. At least two cylindrical materials are placed vertically on the pallet against each other. The horizontal strapping mechanism is provided at the horizontal strapping station and is used to automatically strap at least one horizontal strapping belt on at least two of the cylindrical materials to bundle the at least two cylindrical materials into one. The longitudinal strapping mechanism is arranged at the longitudinal strapping station, and is used for automatically strapping at least one longitudinal strapping belt on each of the cylindrical materials, one end of the longitudinal strapping belt passes around the top surface of the corresponding cylindrical material and then passes through the pallet to be tightened and strapped, so as to fix the cylindrical material on the pallet in the longitudinal direction, the longitudinal strapping belt is pressed against the outer surface of the horizontal strapping belt, the longitudinal strapping belt is eccentrically arranged relative to the center line of the corresponding cylindrical material, the portion of the longitudinal strapping belt passing through the top surface of the cylindrical material is arranged close to the center of the pallet, and the portion of the longitudinal strapping belt passing through the pallet is arranged away from the center of the pallet; The longitudinal strapping mechanism is located at the longitudinal strapping station at the discharge end of the conveying device, and includes a second feeding assembly, a rotating assembly, a longitudinal strapping assembly, and a longitudinal arrow threading assembly. The longitudinal strapping assembly includes a second frame, a longitudinal strapping head, and a longitudinal strapping channel. The longitudinal strapping assembly further includes a second lifting member and a second lifting drive member, wherein the second lifting member can be lifted and assembled on the second frame, the fixed end of the second lifting drive member is installed on the second frame, and the movable end of the second lifting drive member is connected to the second lifting member, the longitudinal strapping machine head is installed on the second lifting member, and the second lifting drive member drives the second lifting member to lift and lower relative to the second frame to drive the longitudinal strapping machine head to lift and lower, the longitudinal strapping assembly further includes a strapping drive member and a sliding seat, the fixed end of the strapping drive member is installed on the second lifting member, the movable end of the strapping drive member is connected to the sliding seat, and the sliding seat can be movably assembled on the second lifting member in the front and rear directions, the longitudinal strapping machine head is installed on the sliding seat, and the strapping drive member drives the sliding seat to reciprocate in the front and rear directions so that the longitudinal strapping machine head approaches or moves away from the center of the pallet. When the longitudinal strapping machine head tightens the longitudinal strapping belt, the strapping drive member is in a non-working state, so that the sliding seat can move back and forth relative to the second lifting member.

2. The automatic bundling system for cylindrical materials according to claim 1, characterized in that: The longitudinal strapping belt is strapped and fixed on the corresponding cylindrical material under the action of a preset tightening force, and the length of the strapping belt used is the shortest.

3. The automatic bundling system for cylindrical materials according to claim 1, characterized in that: The horizontal strapping mechanism includes a first frame, a first feeding assembly, a first lifting member, a first lifting drive member, a horizontal strapping machine head and a horizontal strapping channel. The first feeding assembly is used to provide a horizontal strapping belt to the horizontal strapping machine head. The first frame is arranged on the outside of the horizontal strapping station of the conveying device. The first lifting member can be lifted and assembled on the first frame. The fixed end of the first lifting drive member is installed on the first frame. The movable end of the first lifting drive member is connected to the first lifting member. The horizontal strapping machine head and the horizontal strapping channel are arranged on the first lifting member. The first lifting drive member drives the first lifting member to move to a preset height. The horizontal strapping channel is located on the periphery of all the cylindrical materials. The horizontal strapping machine head is used to automatically tighten, weld and cut the horizontal strapping belt in the horizontal strapping channel to bundle the cylindrical materials in the horizontal strapping station into one.

4. The automatic bundling system for cylindrical materials according to claim 3, characterized in that: The horizontal strapping mechanism further includes a square frame, which is fixed on the first lifting member and located directly above the conveying device, and the horizontal belt threading channel is installed on the square frame.

5. The automatic bundling system for cylindrical materials according to claim 2 or 3, characterized in that: in, The second feeding assembly is used to provide a longitudinal strapping tape to the longitudinal strapping assembly, The rotating assembly is arranged on one side of the longitudinal strapping assembly, and receives and carries the pallet and cylindrical materials strapped by the horizontal strapping mechanism. The rotating assembly is also used to drive the pallet to rotate a preset angle so that at least two cylindrical materials are rotated to the longitudinal strapping position in sequence. The longitudinal strapping head is mounted on the second frame and located above the rotating assembly. The bottom of the longitudinal strapping channel is disconnected. The arrow-piercing assembly is used to pass through the pallet after the pallet is rotated to a preset angle to close the longitudinal strapping channel. The longitudinal strapping head is used to release the longitudinal strapping released by the second loading assembly into the longitudinal strapping channel. The longitudinal strapping head is also used to tighten, weld and cut the longitudinal strapping in the longitudinal strapping channel to fix the cylindrical material in the longitudinal strapping position on the pallet longitudinally.

6. The automatic bundling system for cylindrical materials according to claim 1, characterized in that: The second frame is a gantry frame, and the longitudinal belt threading channel includes a top belt threader and two lateral belt threaders. The top belt threader is installed on the second lifting member, and the two lateral belt threaders are installed on both sides of the second frame. The arrow threading assembly includes an arrow threading drive and a movable belt threader. The arrow threading drive drives the movable belt threader to approach the bottom ends of the two lateral belt threaders to close the bottom of the longitudinal belt threading channel.

7. The automatic bundling system for cylindrical materials according to claim 5, characterized in that: The rotating assembly includes a rotating drive member and a rotating platform. The tray is placed on the rotating platform. The rotating drive member drives the rotating platform to rotate.

8. The automatic bundling system for cylindrical materials according to claim 1, characterized in that: The pallet adopts a standard pallet, and four cylindrical materials are provided. The standard pallet includes an upper frame, a lower frame and four pallet corner pieces. The four pallet corner pieces are respectively arranged between the four corners of the upper frame and the lower frame. The longitudinal strapping belt passes through the upper frame and the lower frame and is located on the inner side of the corresponding pallet corner piece.

9. An automatic bundling method for cylindrical materials, characterized in that: The method for automatically bundling cylindrical materials comprises bundling at least two cylindrical materials using the automatic bundling system for cylindrical materials according to claim 5, comprising the following steps: S1, the conveying device automatically conveys the pallet and at least two cylindrical materials to the horizontal strapping station, S2, the horizontal strapping mechanism automatically straps at least two cylindrical materials on the horizontal strapping station with two horizontal strapping belts along the height direction to bundle all the cylindrical materials into one. S3, the conveying device automatically conveys the pallet and at least two cylindrical materials bundled by the horizontal strapping mechanism to the rotating assembly of the longitudinal strapping mechanism, S4, the rotating assembly drives the pallet to rotate to a preset angle so that one of the cylindrical materials is in a longitudinal bundling position, and the longitudinal bundling mechanism automatically bundles the cylindrical material in the longitudinal bundling position with a longitudinal bundling belt, and the specific bundling form of the longitudinal bundling belt is as follows: one end of the longitudinal bundling belt passes around the top surface of the corresponding cylindrical material and then passes through the pallet to be tightened and fixed, the longitudinal bundling belt is pressed against the outer surface of the horizontal bundling belt, the longitudinal bundling belt is eccentrically arranged relative to the center line of the corresponding cylindrical material, the part of the longitudinal bundling belt that passes through the top surface of the cylindrical material is arranged close to the center of the pallet, and the part of the longitudinal bundling belt that passes through the pallet is arranged away from the center of the pallet, and the longitudinal bundling belt is bundled and fixed on the corresponding cylindrical material under the action of the preset tightening force, and the length of the bundling belt used is the shortest; S5, the rotating assembly drives the pallet to rotate to the preset angle again, so that the next cylindrical material moves to the longitudinal strapping position, and the longitudinal strapping mechanism works again to automatically strap the cylindrical material in the longitudinal strapping position with a longitudinal strapping belt, and so on, until all the cylindrical materials are strapped with the longitudinal strapping belt.

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