Automatic sealing gasket mounting equipment for cover

Abstract

The utility model discloses automatic sealing gasket mounting equipment for covers, which comprises a first cover conveying line, a second cover conveying line, a cover arranging and shaping conveying line, sealing gasket mounting equipment, a carrying manipulator, a paper stock bin and a carton conveying line, taking the sealing gasket by the sealing gasket mounting equipment, and assembling the sealing gasket on the cover after secondary positioning; the covers assembled with the sealing gaskets are conveyed to the cover arranging and shaping conveying line to be arranged in order, and the carrying mechanical arm takes the multiple covers from the cover arranging and shaping conveying line at a time and carries the multiple covers into cartons of the carton conveying line. Every time the carton is filled with a layer of covers, the carrying manipulator takes the paperboards from the paper stock bin and carries the paperboards into the carton. According to the automatic cover assembling and boxing machine, automatic assembling, boxing and transporting can be achieved from cover feeding to cover boxing, manual work is not needed in the process, the labor cost can be reduced, and the cover assembling efficiency and the cover boxing efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to automatic assembly equipment, and in particular to an automatic sealing gasket installation device for lids. Background Technology

[0002] Existing cap sealing gasket technology cannot meet the requirements of fully automated assembly processes using ordinary cap sealing gasket installation equipment, which still requires manual handling, loading and unloading. In order to achieve automated product assembly, it is necessary to design a device that can automatically assemble, pack, and transport products from start to finish, without requiring manual handling, loading and unloading.

[0003] In view of this, this application aims to provide an apparatus for automatically attaching sealing gaskets and packaging lids to solve the above-mentioned problems. It can reduce labor costs and improve lid assembly efficiency and packing efficiency. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an automatic sealing gasket installation device for lids.

[0005] The objective of this utility model is achieved through the following technical solution: an automatic cap sealing gasket installation device, comprising a first cap conveyor line, a second cap conveyor line, a cap arranging and shaping conveyor line, a sealing gasket installation device, a handling robot, a paper hopper, and a carton conveyor line.

[0006] The first cap conveyor line transports the cap to the gasket-installing device for positioning. The gasket-installing device takes the gasket, positions it a second time, and then assembles it onto the cap.

[0007] The lids with assembled sealing gaskets are conveyed to the lid arranging and shaping conveyor line and arranged neatly. The handling robot takes multiple lids from the lid arranging and shaping conveyor line at one time and moves the multiple lids into the carton of the carton conveyor line. Every time the carton is filled with a layer of lids, the handling robot takes cardboard from the paper hopper and moves the cardboard into the carton.

[0008] As an improvement of the automatic sealing gasket installation equipment for lids of this utility model, the sealing gasket installation equipment includes an assembly machine. The assembly machine is equipped with a hopper for stacking sealing gaskets, a positioning platform for secondary positioning of the sealing gaskets, an assembly robot, and an assembly platform. Positioning plates are respectively provided on both sides of the assembly platform. Both positioning plates are controlled to move by a positioning drive. The positioning platform is located between the hopper and the assembly platform. The assembly robot takes the sealing gasket from the hopper and places it on the positioning platform for secondary positioning. The sealing gasket after secondary positioning is transported by the assembly robot to the assembly platform for assembly. The assembly platform is located between the first lid conveyor line and the second lid conveyor line.

[0009] As an improvement to the automatic sealing gasket installation device for lids of this utility model, the assembly robot includes an assembly traverse servo module, a first transport suction cup mechanism, and a second transport suction cup mechanism. The traverse servo module simultaneously controls the movement of the first and second transport suction cup mechanisms.

[0010] When the first transport suction cup mechanism picks up material from the hopper, the second transport suction cup mechanism picks up material from the positioning platform. When the first transport suction cup mechanism moves to the positioning platform to release material, the second transport suction cup mechanism assembles the sealing gasket onto the cover of the assembly platform.

[0011] As an improvement of the automatic sealing gasket installation device for lids of this utility model, the first conveying suction cup mechanism includes a first cylinder mounting plate, on which a first cylinder is provided. The piston rod end of the first cylinder is connected to a first lifting slide plate. A material picking cylinder is provided on the first lifting slide plate. The piston rod end of the material picking cylinder is provided with a first suction cup mounting seat. A first suction cup is provided on the first suction cup mounting seat. The first lifting slide plate is slidably connected to the first cylinder mounting plate through a slider and a slide rail. The first cylinder mounting plate is slidably connected to the assembly transverse servo module through a slide rail and a slider.

[0012] The second transport suction cup mechanism includes a second cylinder mounting plate, on which a second cylinder is mounted. The piston rod end of the second cylinder is connected to a second lifting slide plate. A second suction cup mounting seat is mounted on the second lifting slide plate, and a second suction cup is mounted on the second suction cup mounting seat. The first lifting slide plate is slidably connected to the second cylinder mounting plate via a slider and a slide rail. The second cylinder mounting plate is slidably connected to the assembled transverse servo module via a slide rail and a slider.

[0013] As an improvement of the automatic sealing gasket installation device for lids of this utility model, the positioning drive includes a forward and reverse bidirectional lead screw and a servo motor. The servo motor is connected to the forward and reverse bidirectional lead screw via a coupling. One end of one of the positioning plates is connected to the forward lead screw section of the forward and reverse bidirectional lead screw via a lead screw nut, and one end of the other positioning plate is connected to the reverse lead screw section of the forward and reverse bidirectional lead screw via a lead screw nut. The other ends of both positioning plates are provided with grooves.

[0014] As an improvement of the automatic sealing gasket installation device for lids of this utility model, the handling robot includes an X-axis servo module, a Y-axis servo module and a Z-axis servo module. The X-axis servo module controls the movement of the Y-axis servo module, the Y-axis servo module controls the movement of the Z-axis servo module, the Z-axis servo module controls the movement of the suction cup bracket, and multiple material-picking suction cups are arranged on the suction cup bracket. The X-axis servo module is mounted on a gantry bracket.

[0015] As an improvement to the automatic sealing gasket installation device for lids of this utility model, the first lid conveyor line includes a conveyor support frame, a horizontal support frame on the conveyor support frame, and a lid conveyor belt on the horizontal support frame. The lid conveyor belt is driven and controlled by a belt drive. Baffles are respectively provided on both sides of the horizontal support frame, forming a conveying channel between the baffles. A sorting hopper is provided on one side of the horizontal support frame, and a sorting cylinder is provided on the other side. The sorting cylinder controls the movement of a baffle. One side of the baffle has an inclined surface. The inlet of the sorting hopper is connected to the conveying channel.

[0016] When the sorting cylinder controls the baffle to push out, the cover conveyed by the conveying channel flows out from the sorting hopper;

[0017] The horizontal support is equipped with a product positioning cylinder at the discharge end. The product positioning cylinder controls the movement of a positioning plate. When the product positioning cylinder controls the positioning plate to extend, the positioning plate blocks the outlet of the conveying channel.

[0018] As an improvement of the automatic sealing gasket installation equipment for lids of this utility model, the lid arrangement and shaping conveyor line includes a shaping line bracket, a second horizontal bracket is provided on the shaping line bracket, a second conveyor belt is provided on the second horizontal bracket, the second conveyor belt is driven and controlled by the second belt, shaping positioning plates are respectively provided on both sides of the second horizontal bracket, and a shaping channel is formed between the shaping positioning plates on both sides, and a second product positioning cylinder is provided at the discharge end of the second horizontal bracket, the second product positioning cylinder controls the movement of the second positioning plate;

[0019] When the second product positioning cylinder controls the second positioning plate to extend, the second positioning plate blocks the outlet of the shaping channel.

[0020] As an improvement to the automatic sealing gasket installation device for lids of this utility model, a paper stacking platform is provided inside the paper hopper. The paper stacking platform is controlled to move up and down by a hopper lifting servo module, which is mounted on a support frame. Each time the handling robot removes a piece of cardboard, the hopper lifting servo module controls the paper stacking platform to rise by the height of one piece of cardboard.

[0021] As an improvement of the automatic sealing gasket installation equipment for lids of this utility model, the carton conveying line includes an empty carton conveying line and a full carton conveying line. The empty carton conveying line uses a belt to convey the carton, and the full carton conveying line conveys the carton through rollers. The discharge end of the empty carton conveying line is equipped with a carton positioning cylinder, and the side of the empty carton conveying line is equipped with an empty carton positioning cylinder.

[0022] The beneficial effects of this utility model are as follows: This utility model enables automatic assembly, packing, and transportation of the lids from feeding to boxing, eliminating the need for manual labor. This utility model reduces labor costs and improves lid assembly and packing efficiency. Through the coordination of sealing gasket installation equipment, handling robots, and various conveyor lines, this utility model achieves automated production and improves production efficiency. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a perspective view of the sealing gasket installation device of this utility model;

[0025] Figure 3 This is a three-dimensional view of the handling robot of this utility model;

[0026] Figure 4 This is a perspective view of the first and second cover conveyor lines of this utility model;

[0027] Figure 5 This is a three-dimensional view of the lid arrangement and shaping conveyor line of this utility model;

[0028] Figure 6 This is a three-dimensional view of the paper hopper of this utility model;

[0029] Figure 7 This is a three-dimensional view of the carton conveyor line of this utility model. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] like Figures 1-7 As shown, an automatic cap sealing device includes a first cap conveyor line 1, a second cap conveyor line 2, a cap arranging and shaping conveyor line 3, a sealing device 4, a handling robot 5, a paper hopper 6, and a carton conveyor line 7.

[0034] The first cover conveyor line 1 conveys the cover to the sealing gasket installation equipment 4 for positioning. The sealing gasket installation equipment 4 takes the sealing gasket, positions it a second time, and then assembles it onto the cover.

[0035] The lids with assembled sealing gaskets are conveyed to the lid arranging and shaping conveyor line 3 and arranged neatly. The handling robot 5 picks up multiple lids at once from the lid arranging and shaping conveyor line 3 and moves them into the carton of the carton conveyor line 7. Each time a carton is filled with a layer of lids, the handling robot 5 picks up cardboard from the paper hopper 6 and moves the cardboard into the carton. Each carton can hold multiple layers of lids.

[0036] Preferably, the sealing gasket assembly equipment 4 includes an assembly machine 41, on which are provided a hopper 42 for stacking sealing gaskets, a positioning platform 43 for secondary positioning of the sealing gaskets, an assembly robot 44, and an assembly platform 45. Positioning plates 46 are provided on both sides of the assembly platform 45, and the two positioning plates 46 are controlled to move by a positioning drive 47. The positioning platform 43 is located between the hopper 42 and the assembly platform 45. The assembly robot 44 takes the sealing gasket from the hopper 42 and places it on the positioning platform 43 for secondary positioning. After secondary positioning, the sealing gasket is transported by the assembly robot 44 to the assembly platform 45 for assembly. The assembly platform 45 is located between the first cover conveyor line 1 and the second cover conveyor line 2.

[0037] Preferably, the assembly robot 44 includes an assembly lateral servo module 441, a first transport suction cup mechanism 442, and a second transport suction cup mechanism 443. The lateral servo module 441 simultaneously controls the movement of the first transport suction cup mechanism 442 and the second transport suction cup mechanism 443.

[0038] When the first transport suction cup mechanism 442 picks up material from the hopper 42, the second transport suction cup mechanism 443 picks up material from the positioning platform 43. When the first transport suction cup mechanism 442 moves to the positioning platform 43 to release material, the second transport suction cup mechanism 43 assembles the sealing gasket onto the cover of the assembly platform 45.

[0039] Preferably, the first conveying suction cup mechanism 442 includes a first cylinder mounting plate 4421, a first cylinder 4422 is provided on the first cylinder mounting plate 4421, the piston rod end of the first cylinder 4422 is connected to the first lifting slide plate 4423, the first lifting slide plate 4423 is provided with a material picking cylinder 4424, the piston rod end of the material picking cylinder 4424 is provided with a first suction cup mounting seat 4425, the first suction cup mounting seat 4425 is provided with a first suction cup 4426, the first lifting slide plate 4423 is slidably connected to the first cylinder mounting plate 4421 through a slider and a slide rail, and the first cylinder mounting plate 4421 is slidably connected to the assembled transverse servo module 441 through a slide rail and a slider;

[0040] The second transport suction cup mechanism 443 includes a second cylinder mounting plate 4431, on which a second cylinder 4432 is provided. The piston rod end of the second cylinder 4432 is connected to the second lifting slide plate 4433. The second lifting slide plate 4433 is provided with a second suction cup mounting seat 4434, and the second suction cup mounting seat 4434 is provided with a second suction cup 4435. The first lifting slide plate 4433 is slidably connected to the second cylinder mounting plate 4431 through a slider and a slide rail. The second cylinder mounting plate 4431 is slidably connected to the assembled transverse servo module 441 through a slide rail and a slider.

[0041] Preferably, the positioning drive 47 includes a bidirectional lead screw and a servo motor 471. The servo motor 471 is connected to the bidirectional lead screw via a coupling. One end of a positioning plate 46 is connected to the forward lead screw section of the bidirectional lead screw via a lead screw nut, and one end of the other positioning plate 46 is connected to the reverse lead screw section of the bidirectional lead screw via a lead screw nut. The other ends of both positioning plates are provided with grooves.

[0042] Preferably, the handling robot 5 includes an X-axis servo module 51, a Y-axis servo module 52, and a Z-axis servo module 53. The X-axis servo module 51 controls the movement of the Y-axis servo module 52, the Y-axis servo module 52 controls the movement of the Z-axis servo module 53, and the Z-axis servo module 53 controls the movement of the suction cup bracket 54. Multiple material-picking suction cups 55 are arranged on the suction cup bracket 54, and the X-axis servo module 51 is mounted on the gantry bracket 56.

[0043] Preferably, the first cover conveyor line 1 includes a conveyor support 11, a horizontal support 12 on the conveyor support 11, and a cover conveyor belt 13 on the horizontal support 12. The cover conveyor belt 13 is driven by a belt drive 14, which is a motor. Baffles 15 are respectively provided on both sides of the horizontal support 12, forming a conveying channel 16 between the baffles 15 on both sides. A sorting hopper 17 is provided on one side of the horizontal support 12, and a sorting cylinder 18 is provided on the other side. The sorting cylinder 18 controls the movement of a baffle 19. One side of the baffle 19 has an inclined surface. The inlet of the sorting hopper 17 is connected to the conveying channel 16.

[0044] When the sorting cylinder 18 controls the baffle 19 to push out, the cover conveyed by the conveying channel 16 flows out from the sorting hopper 17;

[0045] The discharge end of the horizontal support 12 is equipped with a product positioning cylinder 10. The product positioning cylinder 10 controls the movement of a positioning plate 101. When the product positioning cylinder 10 controls the positioning plate 101 to extend, the positioning plate 101 blocks the outlet of the conveying channel 16.

[0046] Preferably, the lid arrangement shaping conveyor line 3 includes a shaping line bracket 31, a second horizontal bracket 32 ​​on the shaping line bracket 31, a second conveyor belt 33 on the second horizontal bracket 32, the second conveyor belt 33 is controlled by a second belt drive 34, the second belt drive 34 is a motor, shaping positioning plates 35 are respectively provided on both sides of the second horizontal bracket 32, and a shaping channel 36 is formed between the shaping positioning plates 35 on both sides, and a second product positioning cylinder 37 is provided at the discharge end of the second horizontal bracket 32, the second product positioning cylinder 37 controls the movement of the second positioning plate 38;

[0047] When the second product positioning cylinder 37 controls the second positioning plate 38 to extend, the second positioning plate 38 blocks the outlet of the shaping channel 36.

[0048] Preferably, the paper hopper 6 is equipped with a paper stacking platform 61, which is controlled by a hopper lifting servo module 62 to move up and down. The hopper lifting servo module 62 is mounted on a support frame 63. Each time the handling robot 5 takes away a piece of cardboard, the hopper lifting servo module 62 controls the paper stacking platform 61 to rise by the height of one piece of cardboard.

[0049] Preferably, the carton conveyor line 7 includes an empty carton conveyor line 71 and a full carton conveyor line 72. The empty carton conveyor line 71 uses a belt to convey the carton, and the full carton conveyor line 72 uses rollers to convey the carton. The discharge end of the empty carton conveyor line 71 is equipped with a carton positioning cylinder 73, and the side of the empty carton conveyor line 71 is equipped with an empty carton positioning cylinder 74.

[0050] The working process of this utility model is as follows: The lids are conveyed by the first lid conveyor line to the gasket assembly position, where the assembly robot assembles the gaskets. After the gaskets are assembled, the lids are conveyed by the second lid conveyor line to the lid arranging and shaping conveyor line. This conveyor line arranges and shapes the conveyed lids, arranging multiple lids in a row for easy handling by the robot to pick up multiple lids at once. The carton conveyor line conveys empty cartons to the packing position, where they are positioned by a packing positioning cylinder. The robot picks up multiple lids at once and neatly places them into the empty carton. Once one layer of lids is full, the robot picks up cardboard and places it inside the carton, starting the second layer, and so on, until the carton is full. After filling, the conveyor line delivers the full carton of lids out.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and structure of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for automatically loading and sealing gaskets on lids, characterized by, The first cover conveying line, the second cover conveying line, the cover arrangement shaping conveying line, the sealing gasket assembling device, the carrying manipulator, the paper stock bin and the carton conveying line, The first cover conveying line conveys the cover to the sealing gasket assembling device for positioning, the sealing gasket assembling device takes the sealing gasket, and assembles the sealing gasket on the cover after secondary positioning; The cover assembled with the sealing gasket is conveyed to the cover arrangement shaping conveying line for neat arrangement, the carrying manipulator takes multiple covers from the cover arrangement shaping conveying line at one time, and carries the multiple covers into the carton of the carton conveying line, and the carrying manipulator takes the paperboard from the paper stock bin and carries the paperboard into the carton every time when the carton is full of one layer of covers.

2. The cap automatic gasket sealing apparatus according to claim 1, wherein The sealing gasket assembling device comprises an assembling machine table, a stock bin for stacking the sealing gasket, a positioning platform for secondary positioning of the sealing gasket, an assembling manipulator and an assembling platform, both sides of the assembling platform are respectively provided with positioning plates, both the positioning plates are controlled to move by positioning drive, the positioning platform is located between the stock bin and the assembling platform, the assembling manipulator takes the sealing gasket from the stock bin and places it on the positioning platform for secondary positioning, the sealing gasket after secondary positioning is carried by the assembling manipulator to the assembling platform for assembly, and the assembling platform is located between the first cover conveying line and the second cover conveying line.

3. The cap automatic gasket sealing apparatus according to claim 2, wherein The assembling manipulator comprises an assembling horizontal movement servo module, a first carrying suction disc mechanism and a second carrying suction disc mechanism, the horizontal movement servo module controls the movement of the first carrying suction disc mechanism and the second carrying suction disc mechanism at the same time, When the first carrying suction disc mechanism takes the material from the stock bin position, the second carrying suction disc mechanism takes the material from the positioning platform, when the first carrying suction disc mechanism moves to the positioning platform to place the material, the second carrying suction disc mechanism assembles the sealing gasket on the cover of the assembling platform.

4. The cap automatic gasket sealing apparatus according to claim 3, wherein The first carrying suction disc mechanism comprises a first cylinder mounting plate, the first cylinder mounting plate is provided with a first cylinder, the piston rod end of the first cylinder is connected to a first lifting slide plate, the first lifting slide plate is provided with a material taking cylinder, the piston rod end of the material taking cylinder is provided with a first suction disc mounting seat, the first suction disc mounting seat is provided with a first suction disc, the first lifting slide plate is slidably connected to the first cylinder mounting plate through a sliding block and a sliding rail, and the first cylinder mounting plate is slidably connected to the assembling horizontal movement servo module through a sliding rail and a sliding block; The second carrying suction disc mechanism comprises a second cylinder mounting plate, the second cylinder mounting plate is provided with a second cylinder, the piston rod end of the second cylinder is connected to a second lifting slide plate, the second lifting slide plate is provided with a second suction disc mounting seat, the second suction disc mounting seat is provided with a second suction disc, the first lifting slide plate is slidably connected to the second cylinder mounting plate through a sliding block and a sliding rail, and the second cylinder mounting plate is slidably connected to the assembling horizontal movement servo module through a sliding rail and a sliding block.

5. The cap automatic gasket sealing apparatus according to claim 2, wherein The positioning drive comprises a bidirectional screw rod and a servo motor, the servo motor is connected with the bidirectional screw rod through a shaft coupling, one end of one positioning plate is connected with a forward screw rod segment of the bidirectional screw rod through a screw nut, one end of another positioning plate is connected with a reverse screw rod segment of the bidirectional screw rod through a screw nut, and the other end of the two positioning plates is provided with a groove.

6. The cap automatic gasket sealing apparatus according to claim 1, wherein The carrying manipulator comprises an X-axis servo module, a Y-axis servo module and a Z-axis servo module, the X-axis servo module controls the movement of the Y-axis servo module, the Y-axis servo module controls the movement of the Z-axis servo module, the Z-axis servo module controls the movement of a suction disc support, a plurality of material taking suction discs are arranged on the suction disc support, and the X-axis servo module is installed on a gantry support.

7. The cap automatic gasket sealing apparatus according to claim 1, wherein The first cover conveying line comprises a conveying line support, a horizontal support is arranged on the conveying line support, a cover conveying belt is arranged on the horizontal support, the cover conveying belt is driven and controlled by a belt drive, material blocking plates are arranged on the two sides of the horizontal support, a conveying channel is formed between the two material blocking plates, a sorting hopper is arranged on one side of the horizontal support, a sorting cylinder is arranged on the other side of the horizontal support, the sorting cylinder controls the movement of a blocking plate, an inclined surface is arranged on one side of the blocking plate, and the inlet of the sorting hopper is communicated with the conveying channel. When the blocking plate is pushed out by the sorting cylinder, the covers conveyed by the conveying channel flow out of the sorting hopper. A product positioning cylinder is arranged at the outlet end of the horizontal support, the product positioning cylinder controls the movement of a positioning plate, and when the positioning plate is controlled to extend out by the product positioning cylinder, the positioning plate blocks the outlet of the conveying channel.

8. The cap automatic gasket sealing apparatus according to claim 1, wherein, The cover arrangement and shaping conveying line comprises a shaping line support, a second horizontal support is arranged on the shaping line support, a second conveying belt is arranged on the second horizontal support, the second conveying belt is driven and controlled by a second belt drive, shaping positioning plates are arranged on the two sides of the second horizontal support, a second product positioning cylinder is arranged at the outlet end of the second horizontal support, and the second product positioning cylinder controls the movement of a second positioning plate. When the second positioning plate is controlled to extend out by the second product positioning cylinder, the second positioning plate blocks the outlet of the shaping channel.

9. The cap automatic gasket sealing apparatus according to claim 1, wherein, A paper stacking platform is arranged in the paper bin, the paper stacking platform is controlled to move up and down by a bin lifting servo module, and the bin lifting servo module is installed on a support frame.

10. The cap automatic gasket sealing apparatus according to claim 1, wherein, The carton conveying line comprises an empty carton conveying line and a full carton conveying line, the empty carton conveying line adopts a belt to convey cartons, the full carton conveying line conveys cartons through rollers, a carton loading positioning cylinder is arranged at the outlet end of the empty carton conveying line, and an empty carton positioning cylinder is arranged on the side of the empty carton conveying line.

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