A rigid carton conveyor line diversion system

Abstract

This invention discloses a rigid carton conveyor line diversion system, including a main conveyor line, multiple conveyor branches, a diversion drive assembly for diverting rigid cartons from the main conveyor line to the branch conveyors, and controllers for controlling the working states of the main conveyor line, the branch conveyors, and the diversion drive assembly. Each branch conveyor includes a conveyor chain assembly for conveying rigid cartons and a carton lifting mechanism for picking up and lowering rigid cartons from the conveyor chain assembly to a manual workstation. The conveyor chain assembly and the carton lifting mechanism are communicatively connected to the controller. This system automatically and intelligently distributes rigid cartons by conveying and diverting them via the main conveyor line and branch conveyors, and coordinates with multiple carton lifting mechanisms to avoid oversupply or undersupply due to varying manual cartoning efficiency at different workstations. This improves the automation level of the production site and thus increases work efficiency.

Description

Technical Field

[0001] This invention relates to the field of empty carton conveying and diversion technology, and specifically to a diversion system for a rigid carton conveying line. Background Technology

[0002] The empty carton conveyor system is a type of automated production line equipment. It is an automated equipment used in cigarette factories to separate and transport rigid cartons. However, it is not limited to the cigarette factory production environment and can be extended to conveying and sorting work in various industries.

[0003] Currently, the rigid-carton cigarettes used in the market cannot be packaged into cartons using packaging machines. Most are sourced externally. When manufacturers ship these rigid-carton cigarettes, the cartons are packed and shipped to the cigarette factory. Upon arrival, the cartons are manually unpacked, and the cartons are removed and transported to designated workstations. This process requires manual handling of the removed cartons, stacking them onto handcarts, and then transporting the handcarts to the manual packing station. At this station, packing personnel sequentially remove the cartons from the handcarts for packing. This manual operation is inefficient and wastes significant manpower and resources. The economic benefits of a cigarette factory depend on its output, so production efficiency is very important. Manual handling is low-tech and time-consuming. There is a need in the market for an empty carton conveyor system to replace the manual handling process, improve production efficiency, and at the same time, the saved manpower and resources can be allocated to other tasks, such as training staff to perform more technically demanding work, reducing personnel turnover on the operating site, increasing the degree of automation on site, and making the work site more standardized and efficient. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a rigid strip box conveyor line diversion system.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a rigid carton conveyor line diversion system, including a main conveyor line, multiple conveyor branches, a diversion drive assembly for diverting rigid cartons from the main conveyor line to the conveyor branches, and a controller for controlling the working states of the main conveyor line, the conveyor branches and the diversion drive assembly respectively.

[0006] The conveyor branch line includes a conveyor chain assembly for conveying rigid cartons and a carton lifting mechanism for picking up the rigid cartons on the conveyor chain assembly and lowering them to the manual workstation. The conveyor chain assembly and the carton lifting mechanism are respectively connected to the controller.

[0007] Furthermore, the carton lifting mechanism includes a bracket, hook plate belt brackets arranged on both sides of the bracket, a hook plate belt located in the hook plate belt bracket for placing rigid cartons, a transition belt conveyor connected to the conveyor chain assembly for conveying and transitioning rigid cartons, a push-in component for pushing the rigid cartons on the transition belt conveyor onto the hook plate belt, and a drive component for driving the hook plate belt to move up and down along the hook plate belt bracket.

[0008] A placement cavity for placing rigid strip boxes is formed between the two sets of hook plate belts. The placement cavity corresponds to the pushing component. The driving component drives the rigid strip boxes pushed onto the hook plate belts to descend to the manual work station.

[0009] Furthermore, the transition belt conveyor includes a main support frame, drive wheels and belt tensioning pulleys respectively disposed at both ends of the main support frame, a transmission belt that is fitted on the drive wheels and belt tensioning pulleys, and a drive motor that drives the drive wheels to rotate. The inlet end of the transmission belt is connected to the outlet end of the conveyor chain assembly, and the rigid strip box is conveyed from the conveyor chain assembly to the transmission belt.

[0010] Furthermore, a lifting drive component is provided on the main support, and a bar box baffle is provided on the telescopic end of the lifting drive component, with the baffle end of the bar box baffle extending above the transmission belt.

[0011] Furthermore, the drive assembly includes a servo motor, a drive wheel located at the output end of the servo motor, a forward-rotating wheel assembly connected to a hook plate belt on one side, a reverse-rotating wheel assembly connected to a hook plate belt on the other side, and a double-sided toothed belt that is wound around the drive wheel, the forward-rotating wheel assembly, and the reverse-rotating wheel assembly. The servo motor drives the forward-rotating wheel assembly to rotate forward and the reverse-rotating wheel assembly to drive the hook plate belts on both sides to move downward respectively.

[0012] Furthermore, the forward rotation wheel assembly includes a forward rotation output wheel, a forward rotation pulley connected to the forward rotation output wheel via a rotating shaft, and a forward rotation driven pulley rotatably disposed below the bracket and corresponding to the forward rotation pulley, with the hook plate belt on one side wound around the forward rotation pulley and the forward rotation driven pulley;

[0013] The reverse pulley assembly includes a reverse output pulley, steering pulleys located above and below the reverse output pulley, a reverse pulley connected to the reverse output pulley via a rotating shaft, and a reverse driven pulley rotatably disposed below the bracket and corresponding to the reverse pulley. The hook plate belt on the other side is wound around the reverse pulley and the reverse driven pulley.

[0014] After the double-sided toothed belt passes over the drive pulley, it goes around the upper steering pulley and then around the reverse output pulley and the lower steering pulley in sequence. After passing through the lower steering pulley, it goes around the forward output pulley and then back to the drive pulley.

[0015] Furthermore, the hook plate belt includes a belt body and hook plates spaced apart on the outer surface of the belt body. The hook plates on the two hook plate belts correspond to form placement cavities for placing rigid strip boxes. The bottom ends of the rigid strip boxes are in contact with the hook plates on the two hook plate belts.

[0016] Furthermore, an outlet tray is provided below the support for placing the lowered rigid strip box. The outlet tray is provided with a push-out component for pushing the rigid strip box to the manual work station. And gaps are formed between the two ends of the outlet tray and the hook plate belt bracket to allow the hook plate belt to move up and down.

[0017] Furthermore, the diversion drive assembly, the push-in assembly, and the push-out assembly all include a support, a cylinder seat mounted on the support, a cylinder mounted on the cylinder seat, and a bar box push plate mounted on the telescopic end of the cylinder.

[0018] A guide post runs horizontally through the cylinder block, and the end of the guide post is connected to the bar box push plate.

[0019] An adjustable shim is provided between the cylinder seat and the support.

[0020] Furthermore, the conveyor chain assembly includes a first straight conveyor section connected to the main conveyor line, a curved conveyor section connected to the first straight conveyor section, and a second straight conveyor section connected to the output end of the curved conveyor section. The first straight conveyor section, the curved conveyor section, and the second straight conveyor section are equipped with conveyor chains. The power end of the conveyor chain is located at the output end of the second straight conveyor section, and the power end is connected to a power wheel. The power wheel is driven to rotate by a motor. The inlet end of the first straight conveyor section is equipped with a driven wheel that is connected to the conveyor chain.

[0021] The first straight conveyor section, the curved conveyor section, and the second straight conveyor section are each covered with a cover plate.

[0022] The beneficial effects of the rigid strip box conveyor line diversion system provided by the present invention are as follows:

[0023] This invention provides a rigid carton conveyor line distribution system with reliable structure and good performance. It conveys and distributes rigid cartons via a main conveyor line and branch lines, and automatically and intelligently allocates them using multiple carton lifting mechanisms. This avoids oversupply or undersupply caused by varying manual cartoning efficiency at different workstations. The use of automated equipment increases the automation level of the production site, thereby improving work efficiency, reducing labor input, and lowering the labor intensity of operators. This invention features an innovative layout, simple maintenance, reduced investment costs, and high system integration, with components working together to improve production efficiency. In terms of safety, the system uses protective covers to completely isolate moving parts from the outside, improving the overall integrity of the equipment and ensuring the safety of operators. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0026] Figure 2 This is a schematic diagram of the conveyor chain assembly of the conveyor branch line in this invention;

[0027] Figure 3 This is a frontal perspective view of the carton lifting mechanism in this invention.

[0028] Figure 4 This is a three-dimensional structural diagram of the rear of the carton lifting mechanism in this invention.

[0029] Figure 5 This is a schematic diagram of the drive assembly structure of the carton lifting mechanism in this invention;

[0030] Figure 6 This is a schematic diagram of the hook plate belt in this invention;

[0031] Figure 7 This is a schematic diagram of the transition belt conveyor in this invention;

[0032] Figure 8 This is a schematic diagram of the structure of the shunt drive component, push-in component, or push-out component in this invention.

[0033] The following are the labeling elements in the figure:

[0034] 1-Main conveyor line, 2-Branch conveyor line, 3-Diversion drive assembly, 20-Conveyor chain assembly, 21-Carton lifting mechanism, 210-Bracket, 211-Hook plate belt bracket, 212-Hook plate belt, 213-Transition belt conveyor, 214-Push-in assembly, 215-Drive assembly, 2134-Main support, 2130-Drive wheel, 2132-Transmission belt, 2133-Drive motor, 216-Lifting drive component, 217-Carton baffle, 2150-Servo motor, 2151-Drive wheel, 2152-Double-sided toothed belt, 2153-Forward rotation output 2154-Forward rotating pulley, 2155-Forward rotating driven pulley, 2156-Reverse rotating output pulley, 2157-Steering pulley, 2158-Reverse rotating pulley, 2159-Reverse rotating driven pulley, 2120-Belt body, 2121-Hook plate, 219-Outlet support plate, 218-Push-out assembly, 30-Support, 31-Cylinder seat, 32-Cylinder, 33-Bar box push plate, 34-Guide post, 35-Adjustable pad post, 201-First linear conveyor section, 202-Curved conveyor section, 203-Second linear conveyor section, 204-Power pulley, 205-Driven pulley. Detailed Implementation

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] like Figures 1-8 As shown, a rigid carton conveyor line diversion system includes a main conveyor line 1, multiple branch conveyor lines 2, a diversion drive assembly 3 for diverting rigid cartons from the main conveyor line 1 to the branch conveyor lines 2, and a controller for controlling the operating states of the main conveyor line 1, the branch conveyor lines 2, and the diversion drive assembly 3. The controller uses an industrial computer to control the entire diversion system. Depending on actual needs, there can be multiple branch conveyor lines 2, and the diversion drive assembly 3 is arranged on the main conveyor line 1. When there are multiple branch conveyor lines 2, there are also multiple diversion drive assemblies 3.

[0040] The conveyor branch line 2 includes a conveyor chain assembly 20 for conveying rigid carton boxes and a carton lifting mechanism 21 for picking up the rigid carton boxes from the conveyor chain assembly 20 and lowering them to the manual workstation. Both the conveyor chain assembly 20 and the carton lifting mechanism 21 are communicatively connected to a controller. The main conveyor line 1 uses a linear conveyor chain for conveying rigid carton boxes. Its installation height and method are specified by the manufacturer. The installation height affects the carton box entry height of the carton lifting component. Installation methods include suspended, wall-mounted, floor-standing, and combined types, and a reasonable layout can be achieved based on site conditions and manufacturer requirements. The conveyor chain assembly 20 connects to the main conveyor line 1. After the rigid carton boxes are fed into the main conveyor line 1, the main conveyor line 1 transports them to the diversion drive assembly 3 for diversion processing. Multiple diversion drive assemblies 3 are arranged on the main conveyor line 1 as needed to perform one-to-many processing of the rigid carton boxes. The diversion drive component 3 pushes the rigid carton conveyed on the main conveyor line 1 onto the conveyor chain assembly 20 of the conveyor branch line 2 located on the side of the main conveyor line 1. The rigid cartons not pushed out by the diversion drive component 3 are conveyed to the conveyor branch line 2 which is connected to the end of the main conveyor line 1. The rigid cartons diverted by the diversion drive component 3 are respectively conveyed to the carton lifting mechanism 21 connected to the end of the conveyor branch line 2 for descent. The controller controls the multiple carton lifting mechanisms 21 to ensure that the number of empty cartons allocated to each station is basically the same.

[0041] like Figure 2As shown, the conveyor chain assembly 20 of the conveyor branch line 2 includes a first straight conveyor section 201 connected to the main conveyor line 1, a curved conveyor section 202 connected to the first straight conveyor section 201, and a second straight conveyor section 203 connected to the output end of the curved conveyor section 202. The first straight conveyor section 201, the curved conveyor section 202, and the second straight conveyor section 203 are equipped with conveyor chains. The power end of the conveyor chain is located at the output end of the second straight conveyor section 203, and a power wheel 204 is connected to the power end. The power wheel 204 is driven to rotate by a motor. A driven wheel 205, which cooperates with the conveyor chain, is provided at the inlet end of the first straight conveyor section 201. The power wheel 204 drives the conveyor chain to run, thereby driving the rigid strip boxes on the conveyor chain to move, achieving the purpose of conveying the rigid strip boxes. The driven wheel 205 rotates under the drive of the conveyor chain, allowing the conveyor chain to run normally along the upper and lower working surfaces of the conveyor section. The conveyor chain support wheel is located below the conveyor section; its function is to support the excessively long conveyor chain so that it smoothly enters the lower working surface of the profile during operation. The curved conveyor section 202 has straight conveyor sections at both ends. Its function is to allow the rigid carton to be pushed into the inlet by the diversion drive component 3 at the inlet end with a certain straight buffer space, so that it can smoothly enter the curve. The straight conveyor section at the outlet end is designed to extend to the workstation where the carton lifting mechanism 21 is located.

[0042] In order to avoid the influence of impurities on the conveying environment, in this invention, the first straight conveying section 201, the curved conveying section 202 and the second straight conveying section 203 are respectively covered with cover plates.

[0043] like Figures 3 to 4As shown, the number of carton lifting mechanisms 21 can be arranged in multiple sets according to actual conditions. Each carton lifting mechanism 21 includes a support 210, hook plate belt brackets 211 disposed on both sides of the support 210, a hook plate belt 212 located within the hook plate belt brackets 211 and used to hold rigid cartons, a transition belt conveyor 213 connected to the conveyor chain assembly 20 and used for the transition of rigid carton transport, a pushing assembly 214 for pushing the rigid cartons on the transition belt conveyor 213 onto the hook plate belt 212, and a driving assembly 215 for driving the hook plate belt 212 to move up and down along the hook plate belt brackets 211. The support 210 is constructed from aluminum profiles and provides support for the mechanism; the hook plate belt brackets 211 are installed on both sides of the support 210, providing lateral support for the hook plate belt 212. The transition belt conveyor 213 is installed on the side of the bracket 210 and connects to the outlet end of the conveyor branch line 2. The motor of the transition belt conveyor 213 drives the belt to transport the rigid carton. A placement cavity for placing the rigid carton is formed between the two sets of hook plate belts 212. The placement cavity corresponds to the push-in component 214. The rigid carton that has been transported to the designated position is pushed into the lowering position of the hook plate belt 212 by the push-in component 214. Then, the drive component 215 drives the hook plate belt 212 to move up and down. In addition, inner and outer guide plates are respectively provided on the inner and outer sides of the hook plate belt brackets 211 on both sides, which guide the rigid carton. Below the support frame 210 is an exit tray 219 for placing the descended rigid carton. An ejector assembly 218 is installed at the exit tray 219 to push the rigid carton to the workstation. Gaps are formed between the two ends of the exit tray 219 and the hook-plate belt bracket 211 to allow the hook-plate belt 212 to move vertically. After the rigid carton is transported to the workstation by the hook-plate belt 212, the ejector assembly 218 pushes the carton, which falls on the exit tray 219 at the same height as the workstation, onto the carton lifting mechanism 21 and onto the workstation. Inner and outer door panels are installed on the outside of the support frame 210 to provide safety protection for employees, preventing accidental mechanical injury during the descent of the rigid carton due to mechanical operation.

[0044] In this invention, such as Figure 5 As shown, the drive assembly 215 includes a servo motor 2150, a drive wheel 2151 located at the output end of the servo motor 2150, a forward-rotating wheel assembly connected to a hook plate belt 212 on one side, a reverse-rotating wheel assembly connected to a hook plate belt 212 on the other side, and a double-sided toothed belt 2152 wound around the drive wheel 2151, the forward-rotating wheel assembly, and the reverse-rotating wheel assembly. The servo motor 2150 drives the forward-rotating wheel assembly to rotate forward, and the reverse-rotating wheel assembly drives the hook plate belts 212 on both sides to move downward. Tensioning wheels are arranged on both sides of the drive wheel 2151 to provide tension to the double-sided toothed belt 2152.

[0045] The forward rotation wheel assembly includes a forward rotation output wheel 2153, a forward rotation pulley 2154 connected to the forward rotation output wheel 2153 via a rotating shaft, and a forward rotation driven pulley 2155 rotatably disposed below the bracket 210 and corresponding to the forward rotation pulley 2154. A hook plate belt 212 on one side is wound around the forward rotation pulley 2154 and the forward rotation driven pulley 2155. The forward rotation output wheel 2153 rotates in the same direction as the driving wheel 2151, driving the hook plate belt 212 to descend.

[0046] The reverse pulley assembly includes a reverse output pulley 2156, steering pulleys 2157 located above and below the reverse output pulley 2156, a reverse pulley 2158 connected to the reverse output pulley 2156 via a rotating shaft, and a reverse driven pulley 2159 rotatably disposed below the bracket 210 and corresponding to the reverse pulley 2158. A hook plate belt 212 is wound around the reverse pulley 2158 and the reverse driven pulley 2159 on the other side. The reverse output pulley 2156, under the influence of the steering pulley 2157, rotates in the opposite direction to the driving pulley 2151, causing the hook plate belt 212 to descend synchronously with the hook plate belt 212 driven by the forward-rotating output pulley 2153.

[0047] The double-sided toothed belt 2152, after passing over the drive pulley 2151, goes through the upper steering pulley 2157 and then sequentially winds around the reverse output pulley 2156 and the lower steering pulley 2157. After exiting the lower steering pulley 2157, it passes over the forward output pulley 2153 and returns to the drive pulley 2151. This transmission structure design allows for the lifting and lowering of two sets of hook-plate belts 212 reliably, achieved with just one servo motor 2150 and one double-sided toothed belt 2152.

[0048] In this invention, such as Figure 6 As shown, the hook plate belt 212 includes a belt body 2120 and hook plates 2121 spaced apart on the outer surface of the belt body 2120. The hook plates 2121 on the two hook plate belts 212 respectively form placement cavities for placing rigid strip boxes. The bottom ends of the rigid strip boxes are in contact with the hook plates 2121 on the two hook plate belts 212 respectively. The forward pulley 2154 and the reverse pulley 2158 of the drive assembly 215 drive the belt body 2120 to rise and fall, thereby driving the hook plates 2121 to rise and fall. When the hook plates 2121 on the two hook plate belts 212 are in a horizontal position and are at a height equivalent to that of the transition belt conveyor 213, the push-in assembly 214 can push the rigid strip box on the transition belt conveyor 213 onto the hook plate belt 212 for placement.

[0049] like Figure 7As shown, the transition belt conveyor 213 includes a main support 2134, drive wheels 2130 and belt tensioning wheels 2131 respectively disposed at both ends of the main support 2134, a transmission belt 2132 cooperating on the drive wheels 2130 and belt tensioning wheels 2131, and a drive motor 2133 driving the drive wheels 2130 to rotate. The inlet end of the transmission belt 2132 is connected to the outlet end of the conveyor chain assembly 20, and the rigid strip box is conveyed from the conveyor chain assembly 20 to the transmission belt 2132. The main support 2134 is installed on the side of the bracket 210 of the strip box lifting mechanism 21 and is connected to the outlet end of the conveyor branch line 2. The drive motor 2133 is a geared motor, which is installed on one side of the main support 2134 to provide power to the transmission belt 2132. The main support frame 2134 provides installation space for other parts on the transition belt conveyor 213. The belt tensioning pulley 2131 is installed on the other side of the main support frame 2134, providing tension to the drive belt 2132. A connecting plate is installed at the bottom of the main support frame 2134 on the side of the reduction motor, which connects to the next set of transition belt conveyors 213. In use, the drive motor 2133 drives the drive wheel 2130 to rotate, thereby driving the drive belt 2132 to move and realize the conveying of rigid strip boxes. A lifting drive component 216 is provided on the main support frame 2134. The telescopic end of the lifting drive component 216 is provided with a strip box baffle 217, which extends above the drive belt 2132. The lifting drive component 216 can be an electric cylinder or a pneumatic cylinder 32. The lifting drive component 216 drives the strip box baffle 217 to lift and lower, positioning the rigid strip boxes conveyed on the drive belt 2132 and preventing prying of the upper surface of the rigid strip boxes.

[0050] To improve the stability and reliability of pushing rigid strip boxes, in this invention, as follows: Figure 8 As shown, the diversion drive assembly 3, the push-in assembly 214, and the push-out assembly 218 all include a support 30, a cylinder seat 31 mounted on the support 30, a cylinder 32 mounted on the cylinder seat 31, and a carton pusher plate 33 mounted on the telescopic end of the cylinder 32. The support 30 provides support and installation space for other parts. A guide post 34 extends laterally through the cylinder seat 31, and the end of the guide post 34 is connected to the carton pusher plate 33. The cylinder 32 is mounted on the cylinder seat 31, and the guide posts 34 mounted on both sides of the cylinder seat 31 provide a limiting function, ensuring that the cylinder 32 moves only in a straight line and is not subjected to torsional force, thus shortening the lifespan of the cylinder 32. The movement of the cylinder 32 is controlled by a two-position five-way solenoid valve; the carton pusher plate 33 is mounted on the cylinder 32, and the movement of the cylinder 32 drives the carton pusher plate 33 to achieve the function of pushing cigarettes. The carton pusher plate 33 is L-shaped, which can both push the cigarette and block the next conveyed hard carton, thus preventing the return motion of cylinder 32 from being damaged by the conveyed hard carton.

[0051] An adjustable shim 35 is provided between the cylinder seat 31 and the support 30. A stud is provided below the adjustable shim 35. The stud engages with a threaded hole on the support 30 to adjust the height of the shim. By changing the height of the shim, the working height of the cylinder 32 can be changed to adapt to the usage scenarios of various components. The stroke of the cylinder 32 corresponds to the length of the guide post 34. Under different working conditions, the required action can be completed simply by replacing the cylinder 32 with a different stroke and the guide post 34 with the corresponding length.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A diversion system for a rigid strip box conveyor line, characterized in that, It includes a main conveyor line (1), multiple conveyor branches (2), a diversion drive assembly (3) for diverting rigid strip boxes from the main conveyor line (1) to the conveyor branches (2), and a controller for controlling the working state of the main conveyor line (1), the conveyor branches (2) and the diversion drive assembly (3) respectively. The conveyor branch line (2) includes a conveyor chain assembly (20) for conveying rigid cartons, a carton lifting mechanism (21) for picking up the rigid cartons on the conveyor chain assembly (20) and lowering them to the manual workstation, the conveyor chain assembly (20) and the carton lifting mechanism (21) being communicatively connected to the controller; the carton lifting mechanism (21) includes a bracket (210), hook plate belt brackets (211) on both sides of the bracket (210), a hook plate belt (212) located in the hook plate belt bracket (211) and used to place the rigid cartons, a transition belt conveyor (213) connected to the conveyor chain assembly (20) and used for the transition of the rigid cartons, a push-in component (214) for pushing the rigid cartons on the transition belt conveyor (213) onto the hook plate belt (212), and a drive component (215) for driving the hook plate belt (212) to move up and down along the hook plate belt bracket (211). A placement cavity for placing rigid strip boxes is formed between the two sets of hook plate belts (212), the placement cavity corresponding to the push-in component (214), and the drive component (215) drives the rigid strip boxes pushed onto the hook plate belts (212) to descend to the manual work station.

2. The rigid strip box conveyor line diversion system according to claim 1, characterized in that, The transition belt conveyor (213) includes a main support (2134), a drive wheel (2130) and a belt conveyor tensioning wheel (2131) respectively disposed at both ends of the main support (2134), a transmission belt (2132) cooperatingly disposed on the drive wheel (2130) and the belt conveyor tensioning wheel (2131), and a drive motor (2133) that drives the drive wheel (2130) to rotate. The inlet end of the transmission belt (2132) is connected to the outlet end of the conveyor chain assembly (20), and the rigid strip box is conveyed from the conveyor chain assembly (20) to the transmission belt (2132).

3. The rigid strip box conveyor line diversion system according to claim 2, characterized in that, The main support (2134) is provided with a lifting drive (216), and the telescopic end of the lifting drive (216) is provided with a bar box baffle (217), and the baffle end of the bar box baffle (217) extends above the transmission belt (2132).

4. The rigid strip box conveyor line diversion system according to claim 2, characterized in that, The drive assembly (215) includes a servo motor (2150), a drive wheel (2151) located at the output end of the servo motor (2150), a forward rotating wheel assembly connected to a hook plate belt (212) on one side, a reverse rotating wheel assembly connected to a hook plate belt (212) on the other side, and a double-sided toothed belt (2152) that is wound around the drive wheel (2151), the forward rotating wheel assembly, and the reverse rotating wheel assembly. The servo motor (2150) drives the forward rotating wheel assembly to rotate forward and the reverse rotating wheel assembly to drive the hook plate belts (212) on both sides to move downward.

5. The rigid strip box conveyor line diversion system according to claim 4, characterized in that, The forward rotation wheel assembly includes a forward rotation output wheel (2153), a forward rotation pulley (2154) connected to the forward rotation output wheel (2153) via a rotating shaft, and a forward rotation driven pulley (2155) rotatably disposed below the bracket (210) and corresponding to the forward rotation pulley (2154). The hook plate belt (212) on one side is wound around the forward rotation pulley (2154) and the forward rotation driven pulley (2155). The reverse wheel assembly includes a reverse output wheel (2156), a steering wheel (2157) located above and below the reverse output wheel (2156) respectively, a reverse pulley (2158) connected to the reverse output wheel (2156) via a rotating shaft, and a reverse driven pulley (2159) rotatably disposed below the bracket (210) and corresponding to the reverse pulley (2158). A hook plate belt (212) on the other side is wound around the reverse pulley (2158) and the reverse driven pulley (2159). The double-sided toothed belt (2152) passes over the drive wheel (2151), then passes over the upper steering wheel (2157) and then passes over the reverse output wheel (2156) and the lower steering wheel (2157) in sequence. After passing over the lower steering wheel (2157), it passes over the forward output wheel (2153) and then returns to the drive wheel (2151).

6. The rigid strip box conveyor line diversion system according to claim 2, characterized in that, The hook plate belt (212) includes a belt body (2120) and hook plates (2121) spaced apart on the outer surface of the belt body (2120). The hook plates (2121) on the two hook plate belts (212) correspond to form placement cavities for placing rigid strip boxes. The bottom ends of the rigid strip boxes are in contact with the hook plates (2121) on the two hook plate belts (212).

7. The rigid strip box conveyor line diversion system according to claim 2, characterized in that, Below the bracket (210) is an outlet tray (219) for placing the lowered rigid strip box. The outlet tray (219) is provided with a push-out component (218) for pushing the rigid strip box to the manual work station. The two ends of the outlet tray (219) and the hook plate belt bracket (211) are respectively formed with gaps for the hook plate belt (212) to move up and down.

8. The rigid strip box conveyor line diversion system according to claim 7, characterized in that, The diversion drive assembly (3), the push assembly (214), and the push assembly (218) each include a support (30), a cylinder seat (31) disposed on the support (30), a cylinder (32) disposed on the cylinder seat (31), and a strip box push plate (33) disposed on the telescopic end of the cylinder (32). A guide post (34) is transversely penetrating the cylinder seat (31), and the end of the guide post (34) is connected to the strip box push plate (33); An adjustable pad (35) is provided between the cylinder seat (31) and the support (30).

9. The rigid carton conveyor line diversion system according to any one of claims 1 to 8, characterized in that, The conveyor chain assembly (20) includes a first straight conveyor section (201) connected to the main conveyor line (1), a curved conveyor section (202) connected to the first straight conveyor section (201), and a second straight conveyor section (203) connected to the output end of the curved conveyor section (202). The first straight conveyor section (201), the curved conveyor section (202), and the second straight conveyor section (203) are provided with a conveyor chain. The power end of the conveyor chain is located at the output end of the second straight conveyor section (203), and the power end is connected to a power wheel (204). The power wheel (204) is driven to rotate by a motor. The inlet end of the first straight conveyor section (201) is provided with a driven wheel (205) that is connected to the conveyor chain. The first straight conveying section (201), the curved conveying section (202), and the second straight conveying section (203) are respectively covered with cover plates.

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