Conveying system

Abstract

The utility model relates to the technical field of filling, in particular to a conveying system which comprises a first roller way and a second roller way. The second roller way and the first roller way are arranged in parallel at an interval in parallel; the third roller way is butted with the end part of the first roller way or the second roller way; the two ends of the chain conveyor extend into the position between the rollers of the first roller bed and the second roller bed to connect the rollers of the first roller bed and the second roller bed. The barrel opening correcting device comprises a barrel opening correcting mechanism capable of moving up and down, the barrel opening correcting mechanism is provided with a pair of barrel opening shape follow-up clamping jaws capable of being opened and clamped, and when the pair of barrel opening shape follow-up clamping jaws are clamped, the protruding part of the barrel opening of the packaging barrel can be clamped. According to the conveying system, the restoration station is arranged on the conveying path, the barrel opening restoration device is arranged on the restoration station, and the barrel opening of the packaging barrel is restored to the preset position through the barrel opening restoration device, so that it is guaranteed that the position of the barrel opening of the packaging barrel is correct.

Description

Technical Field

[0001] This utility model relates to the field of filling technology, and in particular to a conveying system. Background Technology

[0002] In existing liquid filling production lines, packaging barrels flow between various workstations via conveyor lines. Typically, the empty packaging barrels are positioned at the previous workstation before being conveyed to the next workstation for filling. However, in existing conveyor lines, whether roller conveyors or chain conveyors, the empty packaging barrels are prone to shaking during the conveying process due to their light weight. This causes deviations in the position of the barrel opening when the packaging barrels arrive at the next workstation, resulting in inconvenience for opening and closing the caps and filling operations. Summary of the Invention

[0003] The purpose of this invention is to provide a conveying system to solve the technical problem of positional deviation of the barrel opening during the conveying process.

[0004] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution.

[0005] This utility model provides a conveying system for conveying packaging barrels 600, comprising:

[0006] The first conveying unit 100 includes a first roller conveyor 110;

[0007] The second conveying unit 200 includes a second roller conveyor 210, which is arranged in parallel with the first roller conveyor 110 at intervals.

[0008] The third roller track 300 is arranged in the same direction as the first roller track 110 and is connected to the end of the first roller track 110 or the second roller track 210.

[0009] A lifting and conveying unit 400 includes a chain conveyor 410 and a first lifting actuator 420 capable of driving the chain conveyor 410 to move up and down. The chain conveyor 410 is vertically disposed between the first roller conveyor 110 and the second roller conveyor 210, with both ends of the chain conveyor 410 extending into the space between the rollers of the first roller conveyor 110 and the second roller conveyor 210, respectively. When the chain conveyor 410 is lowered, its upper surface height is not higher than the upper surfaces of the first roller conveyor 110 and the second roller conveyor 210. When the chain conveyor 410 is raised, its upper surface height is higher than the upper surfaces of the first roller conveyor 110 and the second roller conveyor 210. A centering station is provided in the middle of the lifting and conveying unit 400.

[0010] A barrel mouth straightening device 500 is installed at the straightening station and includes a barrel mouth straightening mechanism 510 and a second lifting actuator 520 that can drive the barrel mouth straightening mechanism 510 to move up and down. The barrel mouth straightening mechanism 510 has a pair of barrel mouth conformal grippers 511 that can open and clamp. When the pair of barrel mouth conformal grippers 511 clamp, the protruding part of the barrel mouth 610 of the packaging barrel 600 can be clamped.

[0011] Furthermore, the first conveying unit 100 has at least two first roller conveyors 110 connected in series, and the second conveying unit 200 has the same number of second roller conveyors 210 as the first roller conveyors 110. Each first roller conveyor 110 is connected to its corresponding second roller conveyor 210 via a chain conveyor 410.

[0012] Furthermore, two adjacent first roller tracks 110 and two adjacent second roller tracks 210 are connected by quick connectors 700. The quick connector 700 is a plate-shaped piece with two slots 710 on one side. The two slots 710 are respectively connected to the two first roller tracks 110 or the two second roller tracks 210 by bolts.

[0013] Furthermore, the third roller conveyor 300 is also connected to the end of the first roller conveyor 110 or the second roller conveyor 210 via the quick connector 700.

[0014] Furthermore, the barrel opening straightening device 500 also includes a base 530 disposed at the straightening station for supporting the packaging barrel 600; the chain conveyor 410 has two conveying chains 411, the base 530 is located between the two conveying chains 411, and the top surface of the base 530 is provided with rollers 531 distributed along the circumferential direction of the packaging barrel 600, the rollers 531 can rotate about an axis that is in the same radial direction as the packaging barrel 600.

[0015] Furthermore, the barrel opening straightening device 500 also includes a top barrel pressing mechanism 540 disposed above the base 530. The top barrel pressing mechanism 540 includes a third lifting actuator 541, a rotating shaft 542 connected to the third lifting actuator 541, and a barrel pressing roller 543 disposed at the end of the rotating shaft 542. The third lifting actuator 541 can drive the rotating shaft 542 to perform lifting and lowering movements. The rotating shaft 542 is arranged radially along the packaging barrel 600, and the barrel pressing roller 543 can rotate about the rotating shaft 542 as an axis.

[0016] Furthermore, the pair of barrel-mouth conformal grippers 511 are controlled to open and clamp by pneumatic fingers 512.

[0017] Furthermore, the barrel opening straightening device 500 also includes an auxiliary clamping mechanism 550, which includes two auxiliary clamping cylinders 551 connected to the second lifting actuator 520. The two auxiliary clamping cylinders 551 are horizontally arranged on both sides of a pair of barrel opening conformal grippers 511. The extension and retraction direction of the piston rod of the auxiliary clamping cylinder 551 intersects with the barrel opening conformal grippers 511. A top member 552 is provided at the end of the piston rod of the auxiliary clamping cylinder 551.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The conveying system proposed in this utility model has a correction station set up on the conveying path, and a barrel mouth correction device is set up at the correction station. The barrel mouth correction device corrects the barrel mouth to the preset position before filling and other operations are performed to ensure that the position of the barrel mouth is correct.

[0020] The conveying system proposed in this utility model allows each first roller conveyor to serve as a bin-sorting station and each second roller conveyor to serve as a bin-outgoing station. Depending on actual production needs, the first and second conveying units can be equipped with multiple first and second roller conveyors, thus forming multiple bin-sorting and bin-outgoing stations. Each first roller conveyor (bin-sorting station) and each second roller conveyor (bin-outgoing station) is connected by a chain conveyor. Multiple chain conveyors are arranged in parallel, thus providing multiple parallel alignment stations. The third roller conveyor can serve as a bin-ingoing station, and an alignment station is located in the middle of the lifting conveyor unit. After a packaging bin arrives at the first bin-sorting station, it is transported by the first chain conveyor to the first alignment station for alignment. The second packaging bin then moves to the second bin-sorting station, where it is transported by the second chain conveyor to the second alignment station for alignment. The simultaneous operation of multiple parallel alignment stations improves work efficiency. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the conveying system in one embodiment.

[0023] Figure 2 This is a schematic diagram of the conveyor system with packaging barrels in operation in one embodiment.

[0024] Figure 3 This is a side view of the lifting and conveying unit in one embodiment.

[0025] Figure 4This is a top view of the conveying system in one embodiment.

[0026] Figure 5 This is a side view of the conveying system in one embodiment.

[0027] Figure 6 This is a schematic diagram of the bucket mouth straightening device in one embodiment.

[0028] Figure 7 This is a schematic diagram of the working state of the barrel opening straightening device with the packaging barrel in one embodiment.

[0029] Figure 8 This is a schematic diagram of the bucket mouth straightening device in another embodiment.

[0030] Figure 9 This is a schematic diagram of the working state of the barrel opening straightening device with the packaging barrel in another embodiment.

[0031] In the above figure:

[0032] 100. First conveying unit; 110. First roller conveyor.

[0033] 200. Second conveying unit; 210. Second roller conveyor.

[0034] 300. Third roller conveyor.

[0035] 400. Lifting and conveying unit; 410. Chain conveyor; 420. First lifting and conveying actuator.

[0036] 500. Bucket opening alignment device; 510. Bucket opening alignment mechanism; 511. Bucket opening conformal gripper; 512. Pneumatic finger; 520. Second lifting actuator; 530. Base; 531. Roller; 540. Top surface bucket pressing mechanism; 541. Third lifting actuator; 542. Rotary shaft; 543. Bucket pressing roller; 550. Auxiliary clamping mechanism; 551. Auxiliary clamping cylinder; 552. Top component.

[0037] 600. Packaging drum; 610. Drum opening.

[0038] 700. Quick Connector; 710. Groove.

[0039] 800. Erecting the frame. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] See Figures 1 to 9 This embodiment provides a conveying system for conveying packaging barrels 600 and ensuring that the opening 610 of the packaging barrels 600 is facing correctly. The conveying system includes: a first conveying unit 100, a second conveying unit 200, a third roller conveyor 300, a lifting conveying unit 400, and a barrel opening alignment device 500.

[0042] The first conveying unit 100 and the second conveying unit 200 are arranged in parallel. The third roller conveyor 300 is connected in series with the first conveying unit 100 or the second conveying unit 200. The lifting conveying unit 400 is arranged between the first conveying unit 100 and the second conveying unit 200 to connect the first conveying unit 100 and the second conveying unit 200. The barrel opening straightening device 500 is arranged on one side of the lifting conveying unit 400 and is used to straighten the barrel opening 610 of the packaging barrel 600 on the lifting conveying unit 400 to a preset position.

[0043] The first conveying unit 100 includes a first roller conveyor 110.

[0044] The second conveying unit 200 includes a second roller conveyor 210, which is arranged in parallel with the first roller conveyor 110 at intervals.

[0045] The third roller conveyor 300 is arranged in the same direction as the first roller conveyor 110 and is connected to the end of the first roller conveyor 110.

[0046] The first roller conveyor 110, the second roller conveyor 210 and the third roller conveyor 300 are all powered roller conveyors.

[0047] The lifting and conveying unit 400 includes a chain conveyor 410 and a first lifting actuator 420 that can drive the chain conveyor 410 to move up and down.

[0048] The chain conveyor 410 is a powered chain conveyor with two conveying chains 411. The chain conveyor 410 is vertically arranged between the first roller conveyor 110 and the second roller conveyor 210. The two ends of the two conveying chains 411 of the chain conveyor 410 extend into the space between the rollers of the first roller conveyor 110 and the second roller conveyor 210, respectively, connecting the first roller conveyor 110 and the second roller conveyor 210.

[0049] A cylinder is used as the first lifting actuator 420, which is located at the bottom of the chain conveyor 410. When the first lifting actuator 420 drives the chain conveyor 410 to lower, the height of the upper surface of the chain conveyor 410 is not higher than the upper surfaces of the first roller track 110 and the second roller track 210, so as not to affect the normal conveying of the packaging barrel 600 on the first roller track 110 and the second roller track 210. When the first lifting actuator 420 drives the chain conveyor 410 to raise, the height of the upper surface of the chain conveyor 410 is higher than the upper surfaces of the first roller track 110 and the second roller track 210. The conveying chain 411 of the chain conveyor 410 can lift the packaging barrel 600 and convey it by the chain conveyor 410 along its own conveying direction.

[0050] In practical applications, the first roller conveyor 110 can serve as a barrel sorting station, the second roller conveyor 210 as a barrel exiting station, and the third roller conveyor 300 as a barrel entering station. A centering station is located in the middle of the lifting and conveying unit 400. The chain conveyor 410 connects the first roller conveyor 110 and the second roller conveyor 210, thus connecting the barrel sorting station and the barrel exiting station. The packaging barrel 600 enters from the barrel entering station, where it can be rotated and positioned to ensure its opening 610 faces a preset position. The barrel sorting station serves as an intermediate station between the barrel entering station and the centering station. At the centering station, the packaging barrel 600 can be centered, and after centered, filling and other operations can be performed. At the barrel exiting station, the packaging barrel 600 is transferred to the next process.

[0051] In this embodiment, the first conveying unit 100 includes two first roller conveyors 110 connected in series, and the second conveying unit 200 also includes two second roller conveyors 210 connected in series. Each first roller conveyor 110 (i.e., the bin-sorting station) and each second roller conveyor 210 (i.e., the bin-discharging station) are connected by a chain conveyor 410. The two chain conveyors 410 are arranged in parallel, thus providing two parallel alignment stations. After the first packaging bin 600 arrives at the first bin-sorting station, it is transported by the first chain conveyor 410 to the first alignment station for alignment. The second packaging bin 600 then moves to the second bin-sorting station, where it is transported by the second chain conveyor 410 to the second alignment station for alignment. The two parallel alignment stations operate synchronously, which can improve work efficiency.

[0052] The two adjacent first roller tracks 110, the two adjacent second roller tracks 210, and the third roller track 300 and the first roller track 110 are all connected by quick-connectors 700, which can be quickly detached. The quick-connector 700 is a plate-shaped piece with two slots 710 on one side. The two slots 710 are respectively connected to the two first roller tracks 110 or the two second roller tracks 210 or the third roller track 300 and the first roller track 110 by bolts.

[0053] The quick connector 700 allows for a more convenient and flexible combination of the first roller conveyor 110, the second roller conveyor 210, and the third roller conveyor 300. In another embodiment, more first roller conveyors 110 and second roller conveyors 210 can be set according to actual production needs, thereby forming more bin-separating stations and bin-discharging stations. In addition, the third roller conveyor 300 can be connected to different ends of the first roller conveyor 110 or to different ends of the second roller conveyor 210, so that the entire conveying system has different bin-entry and bin-discharging directions, which can be flexibly arranged according to actual production needs.

[0054] The barrel opening straightening device 500 is installed at the straightening station. The barrel opening straightening device 500 includes a barrel opening straightening mechanism 510, a second lifting actuator 520, a base 530, a top barrel pressing mechanism 540, and an auxiliary clamping mechanism 550.

[0055] In this embodiment, a cylinder is used as the second lifting actuator 520. The cylinder body is vertically mounted on a stand 800 located next to the alignment station. The piston rod of the cylinder extends and retracts vertically, which can drive the barrel mouth alignment mechanism 510 to move up and down. The barrel mouth alignment mechanism 510 has a pair of barrel mouth conformal grippers 511 that can be controlled to open and close by pneumatic fingers 512. The pneumatic fingers 512 are connected to the piston rod of the cylinder. The end of the barrel mouth conformal gripper 511 is provided with a clamping part that conforms to the outer shape of the protruding part of the barrel mouth 610 of the packaging barrel 600. When the pair of barrel mouth conformal grippers 511 are clamped, the clamping part at the end of the barrel mouth conformal gripper 511 can clamp the protruding part of the barrel mouth 610. The clamping process is the barrel mouth 610 alignment process. After clamping is completed, the barrel mouth 610 is aligned to the preset position.

[0056] The base 530 is disposed at the alignment station and is used to support the packaging barrel 600. The base 530 is located between the two conveyor chains 411. The top surface of the base 530 is provided with four rollers 531 that are spaced apart along the circumference of the packaging barrel 600. The rollers 531 can rotate about an axis that is in the same radial direction as the packaging barrel 600. When the packaging barrel 600 rotates on the base 530, the bottom surface of the packaging barrel 600 contacts the rollers 531. The rotation of the rollers 531 can reduce the friction at the bottom of the packaging barrel 600, making the rotation of the packaging barrel 600 smoother.

[0057] The top pressing mechanism 540 is disposed above the base 530. The top pressing mechanism 540 includes a third lifting actuator 541, a rotating shaft 542 connected to the third lifting actuator 541, and a pressing roller 543 disposed at the end of the rotating shaft 542.

[0058] In this embodiment, a cylinder is used as the third lifting actuator 541. The cylinder body is vertically arranged above the base 530, and the piston rod of the cylinder extends and retracts vertically. The cylinder can be installed by an independent bracket or on the frame of the entire filling system. The rotating shaft 542 is connected to the piston rod of the cylinder and can move up and down under the drive of the cylinder. The rotating shaft 542 is arranged radially along the packaging barrel 600, and the pressure barrel roller 543 can rotate around the rotating shaft 542.

[0059] In this embodiment, the pneumatic finger 512 can be a parallel pneumatic finger or an angled pneumatic finger. In order to avoid the barrel opening 610 not being able to be straightened due to insufficient clamping force of the pneumatic finger 512, this embodiment provides the auxiliary clamping mechanism 550 to assist the pneumatic finger 512 in clamping the barrel opening conformal gripper 511.

[0060] The auxiliary clamping mechanism 550 includes two auxiliary clamping cylinders 551 connected to the second lifting actuator 520. The two auxiliary clamping cylinders 551 are horizontally arranged on both sides of a pair of barrel mouth conformal grippers 511. The extension and retraction direction of the piston rod of the auxiliary clamping cylinder 551 intersects with the length direction of the barrel mouth conformal gripper 511. A top member 552 is provided at the end of the piston rod of the auxiliary clamping cylinder 551. When the piston rod of the auxiliary clamping cylinder 551 extends, the top member 552 contacts the barrel mouth conformal gripper 511 and can provide clamping force to the barrel mouth conformal gripper 511.

[0061] After the packaging barrel 600 is transported to the base 530 of the alignment station, the third lifting actuator 541 drives the rotating shaft 542 to descend, so that the pressure roller 543 presses on the top edge of the packaging barrel 600, which can prevent the packaging barrel 600 from tilting or moving during rotation.

[0062] The general working process of the barrel opening straightening device 500 is as follows: After the packaging barrel 600 is transported to the base 530 of the straightening station, the third lifting actuator 541 drives the rotating shaft 542 to descend, so that the barrel pressing roller 543 presses on the top edge of the packaging barrel 600; at the same time, the second lifting actuator 520 drives the barrel opening straightening mechanism 510 to move downward. After the barrel opening straightening mechanism 510 descends to the position, the pneumatic finger 512 controls the barrel opening conformal gripper 511 to clamp, and the barrel opening conformal gripper 511 clamps the protruding part of the barrel opening 610 of the packaging barrel 600; if the position of the barrel opening 610 of the packaging barrel 600 is offset, the packaging barrel 600 will rotate during the clamping process, and finally straighten the barrel opening 610 of the packaging barrel 600 to the preset position.

[0063] In another embodiment, the second lifting actuator 520, the bucket opening alignment mechanism 510, and the top surface bucket pressing mechanism 540 can be integrated and installed, such as... Figure 8 , Figure 9 As shown, a single cylinder is used as both the second lifting actuator 520 and the third lifting actuator 541 to control the barrel opening alignment mechanism 510 and the rotating shaft 542 to perform lifting movements simultaneously.

[0064] The specific workflow of the conveying system provided in this embodiment is as follows:

[0065] An empty packaging barrel 600 is placed on the third roller conveyor 300, i.e., the barrel feeding station. At the barrel feeding station, the packaging barrel 600 can be rotated or otherwise operated so that the barrel opening 610 of the packaging barrel 600 stops at a preset position.

[0066] After the opening 610 of the packaging barrel 600 is positioned, the packaging barrel 600 enters the first roller conveyor 110, i.e., the barrel sorting station, through the third roller conveyor 300. After the packaging barrel 600 reaches the barrel sorting station, the first lifting actuator 420 drives the chain conveyor 410 to rise, lifting the packaging barrel 600 on the barrel sorting station and conveying it to the base 530 above the alignment station. Then, the first lifting actuator 420 drives the chain conveyor 410 to descend, placing the packaging barrel 600 onto the base 530.

[0067] After the packaging drum 600 lands on the base 530, the third lifting actuator 541 drives the rotating shaft 542 to descend, causing the drum pressing roller 543 at the end of the rotating shaft 542 to press against the top edge of the packaging drum 600. At the same time, the second lifting actuator 520 drives the drum opening alignment mechanism 510 to move downward. After the drum opening alignment mechanism 510 descends to its position, the pneumatic finger 512 controls the drum opening conformal gripper 511 to clamp, and the drum opening conformal gripper 511 clamps the protruding part of the drum opening 610 of the packaging drum 600. If the position of the drum opening 610 is offset, the packaging drum 600 will rotate during the clamping process, eventually aligning the drum opening 610 to the preset position.

[0068] After ensuring that the barrel opening 610 is in the correct position, the packaging barrel 600 can be opened and closed, and filling operations can be performed.

[0069] After the above operations are completed, the first lifting actuator 420 drives the chain conveyor 410 to rise, lifting the packaging barrel 600 at the alignment station again and conveying it to the second roller conveyor 210 above the barrel exit station. Then, the first lifting actuator 420 drives the chain conveyor 410 to descend, placing the packaging barrel 600 on the barrel exit station, where it is conveyed to the next process via the second roller conveyor 210.

[0070] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0071] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A conveying system for conveying packaging drums (600), characterized in that, include: The first conveying unit (100) includes a first roller conveyor (110); The second conveying unit (200) includes a second roller conveyor (210), which is arranged in parallel with the first roller conveyor (110) at intervals. The third roller track (300) is arranged in the same direction as the first roller track (110) and is connected to the end of the first roller track (110) or the second roller track (210); A lifting and conveying unit (400) includes a chain conveyor (410) and a first lifting actuator (420) capable of driving the chain conveyor (410) to move up and down. The chain conveyor (410) is vertically arranged between the first roller conveyor (110) and the second roller conveyor (210). Both ends of the chain conveyor (410) extend into the space between the rollers of the first roller conveyor (110) and the second roller conveyor (210). When the chain conveyor (410) is lowered, its upper surface height is not higher than the upper surfaces of the first roller conveyor (110) and the second roller conveyor (210). When the chain conveyor (410) is raised, its upper surface height is higher than the upper surfaces of the first roller conveyor (110) and the second roller conveyor (210). A centering station is provided in the middle of the lifting and conveying unit (400). A barrel mouth straightening device (500) is provided at the straightening station, including a barrel mouth straightening mechanism (510) and a second lifting actuator (520) that can drive the barrel mouth straightening mechanism (510) to move up and down. The barrel mouth straightening mechanism (510) has a pair of barrel mouth conformal grippers (511) that can open and clamp. When the pair of barrel mouth conformal grippers (511) clamp, the protruding part of the barrel mouth (610) of the packaging barrel (600) can be clamped.

2. The conveying system according to claim 1, characterized in that, The first conveying unit (100) has at least two first roller conveyors (110) connected in series, and the second conveying unit (200) has the same number of second roller conveyors (210) as the first roller conveyors (110). Each first roller conveyor (110) is connected to the corresponding second roller conveyor (210) via a chain conveyor (410).

3. A conveying system according to claim 2, characterized in that, The two adjacent first roller tracks (110) and the two adjacent second roller tracks (210) are connected by quick connectors (700). The quick connector (700) is a plate-shaped piece with two slots (710) on one side. The two slots (710) are respectively connected to the two first roller tracks (110) or the two second roller tracks (210) by bolts.

4. A conveying system according to claim 3, characterized in that, The third roller conveyor (300) is also connected to the end of the first roller conveyor (110) or the second roller conveyor (210) via the quick connector (700).

5. A conveying system according to claim 1, characterized in that, The barrel straightening device (500) further includes a base (530) disposed at the straightening station for supporting the packaging barrel (600); the chain conveyor (410) has two conveying chains (411), the base (530) is located between the two conveying chains (411), and the top surface of the base (530) is provided with rollers (531) distributed along the circumference of the packaging barrel (600), the rollers (531) can rotate about an axis that is in the same radial direction as the packaging barrel (600).

6. A conveying system according to claim 5, characterized in that, The barrel opening straightening device (500) further includes a top barrel pressing mechanism (540) disposed above the base (530). The top barrel pressing mechanism (540) includes a third lifting actuator (541), a rotating shaft (542) connected to the third lifting actuator (541), and a barrel pressing roller (543) disposed at the end of the rotating shaft (542). The third lifting actuator (541) can drive the rotating shaft (542) to perform lifting and lowering movements. The rotating shaft (542) is arranged radially along the packaging barrel (600), and the barrel pressing roller (543) can rotate about the rotating shaft (542) as an axis.

7. A conveying system according to claim 1, characterized in that, The pair of barrel-mouth conformal grippers (511) are controlled to open and clamp by pneumatic fingers (512).

8. A conveying system according to claim 7, characterized in that, The barrel opening straightening device (500) further includes an auxiliary clamping mechanism (550), which includes two auxiliary clamping cylinders (551) connected to the second lifting actuator (520). The two auxiliary clamping cylinders (551) are horizontally arranged on both sides of a pair of barrel opening conformal grippers (511). The extension and retraction direction of the piston rod of the auxiliary clamping cylinder (551) intersects with the barrel opening conformal grippers (511). A top piece (552) is provided at the end of the piston rod of the auxiliary clamping cylinder (551).

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