Pushing chain type conveying system

Abstract

A pushing chain type conveying system belongs to the technical field of automatic conveying systems and comprises a control system, a first conveying belt device, a second conveying belt device, a part pushing mechanism, a first roller conveying device, a mechanical arm, an automatic packaging device, a steering mechanism and a lifting mechanism. The part pushing mechanism is provided with a first pushing chain driving unit; the steering mechanism is provided with a second pushing chain driving unit; and the lifting mechanism is provided with a third pushing chain driving unit. According to the pushing chain type conveying system, part packaging, code spraying, boxing, box sealing and packaging and warehousing conveying and transferring can be automatically achieved, the integrated process from part packaging to warehousing is achieved, the problems that at present, the working efficiency of the large-batch part packaging link is low, and circulation of all links is not smooth are solved, the human efficiency is improved, and the production cost is remarkably reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of automated conveying systems, and particularly relates to a push chain conveying system. Background Art

[0002] In the industrial field, packaging is often an independently arranged and labor-intensive process. It requires manual operations for packaging, inkjet coding, boxing, and packing, and then transfer to the warehousing system. Each link requires dedicated personnel to operate, and each link is independent of each other. The next link is restricted by the previous link, and the production efficiency cannot be guaranteed. Especially for some parts with large production volumes, the daily production capacity may be tens of thousands, or even hundreds of thousands. Usually, multiple packaging lines need to be set up for the packaging of a single part, which is cumbersome and inefficient.

[0003] Therefore, researching and developing an efficient packaging and conveying system to solve the current situation of the basic industry with low work efficiency and high labor intensity is the core problem that urgently needs to be solved at present. Summary of the Invention

[0004] The present invention discloses a push chain conveying system, aiming to solve the problems of large labor volume, low production efficiency, labor-consuming, and cumbersome operation in the current conveying system.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A push chain conveying system includes a control system, a conveyor belt device I for conveying parts, a conveyor belt device II for conveying part boxes, a part pushing mechanism for pushing parts into the part boxes, a roller conveying device I for conveying the part boxes filled with parts and inkjet coding the part boxes, a robotic arm for encapsulating the inkjet-coded part boxes and placing them into packing boxes, an automatic packing device for packing the packing boxes, a turning mechanism for turning the packed packing boxes, and a lifting mechanism for lifting the packing boxes to a set height; the part pushing mechanism is provided with a first push chain driving unit; the turning mechanism is provided with a second push chain driving unit; the lifting mechanism is provided with a third push chain driving unit, and the control system is configured to control the conveyor belt device I, the conveyor belt device II, the roller conveying device I, the robotic arm, the automatic packing device, the turning mechanism, and the lifting mechanism.

[0007] Preferably, the conveyor belt device I and the conveyor belt device II are arranged side by side and have the same conveying direction. The conveyor belt device I is 1 part box height higher than the conveyor belt device II. The part pushing mechanism is arranged on the side of the conveyor belt device I away from the conveyor belt device II. The pushing direction of the part pushing mechanism is perpendicular to the running direction of the conveyor belt device I. A plurality of guiding grooves are evenly arranged on the conveyor belts of the conveyor belt device I and the conveyor belt device II through partitions.

[0008] Preferably, the part pushing mechanism includes a first frame. The first frame is provided with a first pushing chain driving unit. At the top of the first frame, a linear guide rail 1 perpendicular to the running direction of the first conveyor belt device is fixedly provided. The first pushing chain output by the first pushing chain driving unit moves along the linear guide rail 1. One end of the first pushing chain is connected with a flat pushing rod, and the end of the flat pushing rod is connected with a push plate for pushing parts. A first pressure sensor is connected to the outer surface of the push plate. At the top of the first frame, a first photoelectric sensor is also provided for detecting whether a part reaches the position opposite to the linear guide rail 1. On the frame on one side of the second conveyor belt device, a second photoelectric sensor is also provided for detecting whether a part box reaches the position opposite to the linear guide rail 1. When a part or a part box reaches the position opposite to the linear guide rail 1, the first conveyor belt device or the second conveyor belt device stops. The first pushing chain driving unit controls the first pushing chain to move along the linear guide rail 1, and pushes the part into the corresponding part box along the corresponding guide groove. After that, the first conveyor belt device and the second conveyor belt device continue to operate. In this way, the operation is repeated to complete the process of loading parts into the part box.

[0009] Preferably, a first roller conveyor device is docked at the front end of the second conveyor belt device. Above the first roller conveyor device, a coding device is provided. The coding device is fixedly connected to the frame of the first roller conveyor device through a connecting piece. On the frame of the first roller conveyor device, a third photoelectric sensor is provided for detecting whether a part box reaches the position directly below the coding device. When the part box reaches, the coding device codes the part box.

[0010] Preferably, an automatic packing device is provided on the first roller conveyor device on the side away from the second conveyor belt device. On one side of the first roller conveyor device between the automatic packing device and the coding device, a robotic arm is provided. The robotic arm is used to seal the part box and place the part box into a packing box on one side of the first roller conveyor device. When the packing box is full of part boxes, the robotic arm places the packing box on the first roller conveyor device, and the first roller conveyor device transports the packing box to the position where the automatic packing device is located. On the frame of the first roller conveyor device at the position where the automatic packing device is located, a fourth photoelectric sensor is provided. When the fourth photoelectric sensor detects that the packing box reaches, the first roller conveyor device stops, and the automatic packing device packs the packing box.

[0011] Preferably, a steering mechanism is connected to the front end of the first roller conveyor device. The steering mechanism includes a second roller conveyor device docked with the first roller conveyor device. The second roller conveyor device includes a second frame. A number of rollers are arranged side by side on the top of the second frame. A second push chain driving unit is arranged inside the second frame. The top end of the second push chain driving unit is connected to a support plate. There are 2 groups of oppositely arranged belt conveyor mechanisms on the top end of the support plate. Each belt conveyor mechanism includes a driving wheel, a driven wheel, and a belt drivingly connected between the driving wheel and the driven wheel. The 2 driving wheels and the 2 driven wheels of the 2 groups of belt conveyor mechanisms are respectively opposite to each other. The driving wheels opposite to each other and the driven wheels opposite to each other are connected by a transmission shaft. The transmission shaft is rotatably connected to the support plate through a fixed shaft seat. The end of the transmission shaft of the driving wheel is connected to a driving motor. The second push chain of the second push chain driving unit extends longitudinally upward and is fixedly connected to the middle of the bottom end of the support plate. Sliders are respectively arranged on the side walls of the support plate. The sliders are slidably connected to a second linear guide rail which is longitudinally arranged and fixedly connected to the inner side of the second frame. An optoelectronic sensor five for detecting whether the packing box reaches a specified position is also arranged on the second frame. When the specified position is reached, the second push chain extends. The 2 groups of driving wheels and driven wheels lift the belt to the upper part of the second roller conveyor device along the gap between adjacent rollers and realize a 90-degree turn of the packing box.

[0012] Preferably, a third roller conveyor device is connected in the 90-degree direction on one side of the second roller conveyor device. The third roller conveyor device is used for docking with the belt conveyor mechanism. The lifting mechanism includes a support frame arranged on one side of the third roller conveyor device. A third push chain driving unit is arranged at the top end of the support frame. The third push chain output by the third push chain driving unit extends vertically downward and is fixedly connected to a bearing plate. The bearing plate is used for receiving the packing box conveyed by the third roller conveyor device. Both sides of the bearing plate are respectively connected to the top end of the support frame through a scissor fork mechanism. When the third push chain retracts, it drives the packing box to rise to a specified height.

[0013] Preferably, the third roller conveyor device includes a third frame and a third roller conveyor device body arranged on the top of the third frame. An optoelectronic sensor six is arranged inside the third frame. The optoelectronic sensor six is used for detecting whether the packing box reaches a set position at the top of the third roller conveyor device.

[0014] The beneficial effects of a push chain type conveying system of the present invention are as follows:

[0015] 1. The push chain type conveying system of the present invention can automatically realize part packaging, inkjet coding, boxing, sealing and packing, and warehousing conveying and transfer, achieving an integrated process from part packaging to warehousing, solving the problems of low work efficiency in the current large-batch part packaging link and unsmooth transfer of each link, improving labor efficiency, and significantly reducing production costs.

[0016] 2. In the part pushing mechanism, steering mechanism and lifting mechanism of the push-chain conveying system of the present invention, push chains are used for driving, with higher transmission accuracy, faster horizontal pushing or lifting speed, stronger safety factor and more convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the part pushing mechanism.

[0019] Figure 3 It is a schematic side sectional view of the main structure of the lifting mechanism.

[0020] Figure 4 It is a schematic diagram of the structure of the steering mechanism.

[0021] Figures 5 - 7 It is an example of the implementation form of the push-chain drive unit involved in the present invention.

[0022] Figure 8 It is an enlarged partial structure view of the conveyor belts of conveyor belt device 1 and conveyor belt device 2.

[0023] Figure 9 It is an enlarged partial structure view of roller conveyor device 1.

[0024] Figure 10 It is a schematic top view of the belt conveyor mechanism.

[0025] 1 - Part pushing mechanism, 2 - Conveyor belt device 1, 3 - Conveyor belt device 2, 4 - Roller conveyor device 1, 5 - Robot arm, 6 - Automatic packing device, 7 - Steering mechanism, 8 - Lifting mechanism, 9 - Support frame, 10 - Storage rack, 11 - Double - buckle push chain chain receiving part 1, 12 - Chain guide 2, 13 - Chain 1 of double - buckle push chain, 14 - Bearing 2, 15 - Sprocket 1, 16 - Receiving part 2, 17 - Chain 2 of double - buckle push chain, 18 - Chain guide 3, 19 - End of push chain, 20 - Push chain interface, 21 - Bearing 1, 22 - Single - buckle push chain, 23 - Chain guide 1, 24 - Single - buckle push chain receiving part, 25 - Chain 1 of double - buckle push chain, 26 - Bearing 3, 27 - Sprocket 2, 28 - Chain guide 4, 29 - Double - buckle push chain chain receiving part 2, 30 - Double - buckle push chain chain joint, 31 - Double - buckle push chain chain guide 1 of lifting device, 32 - Double - buckle push chain chain receiving part 3, 33 - Fixed seat, 34 - Distance sensor for detecting the lifting height of the packing box, 35 - Scissor mechanism, 36 - Carrier plate, 37 - Pressure sensor 2, 38 - Flat - push push rod, 39 - Photoelectric sensor 1, 40 - First push chain drive unit, 41 - Linear guide 1, 42 - Roller, 43 - Second push chain drive unit, 44 - Frame 2, 45 - Belt, 46 - Photoelectric sensor 5; 47 - Partition board, 48 - Guide groove, 49 - Ink - jet coding device, 50 - Driving wheel, 51 - Driven wheel, 52 - Slide block, 53 - Support plate, 54 - Transmission shaft, 55 - Driving motor, 56 - Fixed shaft seat, 57 - Roller conveyor device 3, 58 - Third push chain, 59 - Third push chain drive unit. Detailed implementation mode

[0026] The following description is only for the preferred embodiments of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0027] The following embodiments can be understood as separately expressing a part of the local structure or method of the present invention, or can also be understood as the embodiments combined with each other to explain the connotation of the structure or method of a larger scope of the present invention.

[0028] Embodiment 1

[0029] A push - chain conveying system, as Figures 1 - 9As shown in the figure, it includes a control system, a conveyor belt device 2 for transporting parts, a conveyor belt device 3 for transporting part boxes, a part pushing mechanism 1 for pushing parts into the part boxes, a roller conveyor device 1 for transporting the part boxes with parts and spraying codes on the part boxes, a robotic arm 5 for packaging the part boxes with sprayed codes and placing them into packing boxes, an automatic packing device 6 for packing the packing boxes, a steering mechanism 7 for turning the packed packing boxes, and a lifting mechanism 8 for lifting the packing boxes to a set height; the part pushing mechanism 1 is provided with a first push chain drive unit; the steering mechanism 7 is provided with a second push chain drive unit; the lifting mechanism 8 is provided with a third push chain drive unit, and the control system is configured to control the conveyor belt device 2, the conveyor belt device 3, the roller conveyor device 1, the robotic arm 5, the automatic packing device 6, the steering mechanism 7, and the lifting mechanism 8.

[0030] The conveying system of the present invention can be applied to various automated scenarios, such as the conveying operation in an automated stereoscopic warehouse. When in use, the parts and part boxes are respectively conveyed through the conveyor belt device 1 and the conveyor belt device 2. During this process, the parts are pushed into the corresponding part boxes one by one through the part pushing mechanism 1, and then the part boxes are sprayed with codes by the roller conveyor device 1. Then, the part boxes are sealed by the robotic arm and loaded into the packing boxes, and the packing boxes are packed by the automatic packing device and then enter the steering mechanism, and are lifted to the specified height through the lifting mechanism after passing through the steering mechanism. This process is coordinately controlled by the control system to achieve an assembly line conveying operation, which can greatly improve work efficiency and reduce the difficulty of conveying operations.

[0031] Embodiment 2

[0032] As Figure 1 shown, the conveyor belt device 2 and the conveyor belt device 3 are arranged side by side and have the same conveying direction. The conveyor belt device 2 is higher than the conveyor belt device 3 by the height of one part box. The part pushing mechanism 1 is arranged on the side of the conveyor belt device 2 away from the conveyor belt device 3, and the pushing direction of the part pushing mechanism 1 is perpendicular to the running direction of the conveyor belt device 2. As Figure 8 shown, a number of guiding grooves 48 are evenly arranged on the conveyor belts of the conveyor belt device 2 and the conveyor belt device 3 respectively through partition plates 47.

[0033] As Figure 1 、 2 、8 shown, the part pushing mechanism 1 includes a first frame. The first frame is provided with a first push chain drive unit 40 (for its detailed structure, see the appendix Figure 5) At the top of the first frame, a first linear guide 41 perpendicular to the running direction of the first conveyor belt device 2 is fixedly provided. The first push chain output by the first push chain driving unit 40 moves along the first linear guide 41. One end of the first push chain is connected to a flat push rod 38. The end of the flat push rod 38 is connected to a push plate for pushing parts. A first pressure sensor 37 (for sensing the contact state with the parts) is connected to the outer surface of the push plate. At the top of the first frame, a first photoelectric sensor 39 is also provided for detecting whether the parts reach the position opposite to the first linear guide 41. On the frame on one side of the second conveyor belt device 3, a second photoelectric sensor (not shown in the figure) for detecting whether the parts box reaches the position opposite to the first linear guide 41 is also provided. When the parts or the parts box reach the position opposite to the first linear guide 41, the first conveyor belt device 2 or the second conveyor belt device 3 stops. The first push chain driving unit 40 controls the first push chain to move along the first linear guide 41, and pushes the parts into the corresponding parts box along the corresponding guide groove 48. After that, the first conveyor belt device 2 and the second conveyor belt device 3 continue to operate. In this way, the process of loading parts into the parts box is realized by repeated operations.

[0034] In the present invention, when both the parts and the parts box reach the position opposite to the first linear guide, the condition for pushing the parts into the parts box is satisfied. At this time, the first push chain drives the flat push rod to move, so that the first pressure sensor contacts the parts. At this time, the control system judges that the flat push rod starts to push the parts according to the pressure signal, and then continues to control the flat push rod to move, and finally pushes the parts into the parts box. At this time, the pressure value of the first pressure sensor returns to zero, and the first push chain retracts to the initial position. The first push chain of the present invention can adopt a single-button or double-button push chain, and the specific implementation form can be as Figures 5 - 7 shown. Among them, the double-button push chain system can select an engaged push chain system disclosed in CN220131061U or other chain structures that can achieve related functions; the single-button push chain system can select a ladder push chain type lifting system disclosed in CN119191024A or a square locking type rigid chain push-pull actuator disclosed in CN115727111A and other chains that can achieve related functions. Among them, Figure 5 shows the implementation principle of the single-button push chain to achieve horizontal pushing.

[0035] Embodiment 3

[0036] As Figure 1 shown, at the front end of the second conveyor belt device 3, a first roller conveyor device 4 is butted. Above the first roller conveyor device 4, a coding device 49 is provided (such as Figure 9As shown in the figure, the inkjet printing device 49 is fixedly connected to the frame of the first roller conveyor device 4 through a connecting member. An optoelectronic sensor III (not shown in the figure) for detecting whether the parts box reaches the position below the inkjet printing device 49 is provided on the frame of the first roller conveyor device 4. When the parts box arrives, the inkjet printing device 49 performs inkjet printing on the parts box.

[0037] Embodiment 4

[0038] As Figure 1 shown, an automatic packing device 6 is provided on the first roller conveyor device 4 on the side of the inkjet printing device 49 away from the second conveyor belt device 3. A robotic arm 5 is provided on one side of the first roller conveyor device 4 between the automatic packing device 6 and the inkjet printing device 49. The robotic arm 5 is used to seal the parts box and place the parts box into a packing box (not shown in the figure) on one side of the first roller conveyor device 4. When the packing box is full of parts boxes, the robotic arm places the packing box on the first roller conveyor device 4, and the first roller conveyor device 4 transports the packing box to the position where the automatic packing device 6 is located. An optoelectronic sensor IV (not shown in the figure) is provided on the frame of the first roller conveyor device 4 at the position where the automatic packing device 6 is located. When the optoelectronic sensor IV detects the arrival of the packing box, the first roller conveyor device 4 stops, and the automatic packing device packs the packing box.

[0039] In the present invention, the automatic packing device 6 can be a commercially available HD-008-3 automatic lid folding and sealing machine of Haoda Technology, and the robotic arm can be a product on the market that can achieve relevant functions.

[0040] Embodiment 5

[0041] As Figure 1 shown, a steering mechanism 7 is connected to the front end of the first roller conveyor device 4 (it should be noted that, Figure 1 in order to show a more complete structure of the present invention, the first roller conveyor device 4 is drawn in segments, and it should be understood that the front end of the first roller conveyor device 4 is connected to the steering mechanism 7), as Figure 4 shown, the steering mechanism 7 includes a second roller conveyor device docked with the first roller conveyor device 4. The second roller conveyor device includes a frame II 44. A number of rollers 42 are arranged side by side on the top of the frame II 44. A second push chain drive unit 43 is provided inside the frame II 44. The top of the second push chain drive unit 43 is connected to a pallet (it can be understood by combining Figure 7 that a pallet is provided at the top of the second push chain), as Figure 10As shown in the figure, there are two sets of belt conveyor mechanisms arranged oppositely at the top of the pallet 53. The belt conveyor mechanism includes a driving wheel 50, a driven wheel 51, and a belt 45 drivingly connected between the driving wheel 50 and the driven wheel 51. The two driving wheels 50 and the two driven wheels 51 of the two sets of belt conveyor mechanisms are respectively opposite to each other. The two opposite driving wheels 50 and the two opposite driven wheels 51 are connected by a transmission shaft 54. The transmission shaft 54 is rotatably connected to the pallet 53 through a fixed shaft seat 56. The end of the transmission shaft 54 of the driving wheel 50 is connected to a driving motor 55. The second push chain of the second push chain driving unit 43 extends longitudinally upward and is fixedly connected to the middle of the bottom end of the pallet 53 (driving the pallet to lift). Sliders 52 are respectively arranged on the side walls of the pallet 53. The sliders 52 are slidably connected to a second linear guide rail (not shown in the figure) arranged longitudinally and fixedly connected to the inside of the second frame 44, so as to limit the trajectory of the up and down movement of the pallet. An optoelectronic sensor five 46 for detecting whether the packing box reaches a specified position is also arranged on the second frame 44. When reaching the specified position, the second push chain extends, and the two sets of driving wheels and driven wheels lift the belt to the upper side of the roller conveying device two through the gaps between adjacent rollers and realize a 90-degree turn of the packing box.

[0042] In this embodiment, the lifting height of the pallet can be controlled by controlling the rotation angle or the number of rotation turns of the driving motor, or a travel switch can be arranged on the inner wall of the frame, and the starting position and the ending position of the pallet can be controlled through the travel switch to ensure the accuracy of the transfer of the packing box. Through the turning mechanism, the packing box moves towards the lifting mechanism side.

[0043] Embodiment 6

[0044] As Figure 1 shown in the figure, a roller conveying device three 57 is connected in the 90-degree direction on one side of the roller conveying device two. The roller conveying device three 57 is used for docking with the belt conveyor mechanism, that is, receiving the packing box conveyed by the belt conveyor mechanism. The lifting mechanism 8 includes a support frame 9 arranged on one side of the roller conveying device three 57. A third push chain driving unit 59 is arranged at the top of the support frame 9. The third push chain 58 output by the third push chain driving unit 59 extends vertically downward and is fixedly connected to a bearing plate 36. The bearing plate 36 is used for receiving the packing box conveyed by the roller conveying device three 57. Both sides of the bearing plate 36 are respectively connected to the top of the support frame 9 through a scissor fork mechanism 35. When the third push chain 58 retracts, it drives the packing box to rise to a specified height.

[0045] In this embodiment, a pressure sensor two 37 or other sensors (such as a proximity switch) can also be arranged on the top of the bearing plate to detect that the packing box reaches the top of the bearing plate and prompt the control system to issue an instruction. Among them, the third push chain driving unit 59 can be selected such as Figure 6 、 7The push chain system shown.

[0046] Embodiment 7

[0047] As Figure 1 As shown, the roller conveyor device three 57 includes a frame three and a roller conveyor device three body provided on the top of the frame three. An optoelectronic sensor six (not shown in the figure) is provided inside the frame three. The optoelectronic sensor six is used to detect whether the packing box reaches the set position at the top of the roller conveyor device three to ensure that the packing box is conveyed to the carrier plate when the carrier plate is in the starting position.

[0048] As Figure 1 As shown, the present invention lifts the packing box to a set height and can be used to supply the storage shelves 10 of an automated stereoscopic warehouse.

Claims

1. A pusher chain conveyor system, characterized in that: It includes a control system, a conveyor belt device 1 for transporting parts, a conveyor belt device 2 for transporting part boxes, a part pushing mechanism for pushing parts into the part boxes, a roller conveyor device 1 for transporting the part boxes filled with parts and spraying codes on the part boxes, a robotic arm for encapsulating the part boxes after spraying codes and placing them into packaging boxes, an automatic packaging device for packing the packaging boxes, a steering mechanism for turning the packed packaging boxes, and a lifting mechanism for lifting the packaging boxes to a set height; the part pushing mechanism is provided with a first push chain drive unit; the steering mechanism is provided with a second push chain drive unit; the lifting mechanism is provided with a third push chain drive unit, and the control system is configured to control the conveyor belt device 1, the conveyor belt device 2, the roller conveyor device 1, the robotic arm, the automatic packaging device, the steering mechanism, and the lifting mechanism.

2. The push chain conveyor system according to claim 1, characterized in that: The conveyor belt device 1 and the conveyor belt device 2 are arranged side by side and have the same conveying direction. The conveyor belt device 1 is 1 part box height higher than the conveyor belt device 2. The part pushing mechanism is arranged on the side of the conveyor belt device 1 away from the conveyor belt device 2. The pushing direction of the part pushing mechanism is perpendicular to the running direction of the conveyor belt device 1. A number of guiding grooves are evenly arranged on the conveyor belts of the conveyor belt device 1 and the conveyor belt device 2 through partitions.

3. The push chain conveyor system according to claim 2, characterized in that: The part pushing mechanism includes a frame 1. The frame 1 is provided with a first push chain drive unit. A linear guide rail 1 perpendicular to the running direction of the conveyor belt device 1 is fixedly arranged at the top of the frame 1. The first push chain output by the first push chain drive unit moves along the linear guide rail 1. The end of the first push chain is connected with a flat push rod. The end of the flat push rod is connected with a push plate for pushing parts. A pressure sensor 1 is connected to the outer surface of the push plate. An optoelectronic sensor 1 for detecting whether a part reaches the position opposite to the linear guide rail 1 is also arranged at the top of the frame 1. An optoelectronic sensor 2 for detecting whether a part box reaches the position opposite to the linear guide rail 1 is also arranged on the frame on one side of the conveyor belt device 2. When a part or a part box reaches the position opposite to the linear guide rail 1, the conveyor belt device 1 or the conveyor belt device 2 stops. The first push chain drive unit controls the first push chain to move along the linear guide rail 1 and pushes the part into the part box at the corresponding position along the corresponding guiding groove. After that, the conveyor belt device 1 and the conveyor belt device 2 continue to operate. In this way, the operation is repeated to complete the process of loading parts into the part box.

4. The push chain conveyor system according to claim 3, characterized in that: The front end of the conveyor belt device 2 is docked with a roller conveyor device 1. A coding device is arranged above the roller conveyor device 1. The coding device is fixedly connected to the frame of the roller conveyor device 1 through a connecting piece. An optoelectronic sensor 3 for detecting whether a part box reaches the position below the coding device is arranged on the frame of the roller conveyor device 1. When the part box reaches, the coding device sprays codes on the part box.

5. The push chain conveyor system according to claim 4, characterized in that: An automatic packing device is provided on the roller conveying device 1 on the side of the inkjet coding device away from the conveyor belt device 2. A robotic arm is provided on one side of the roller conveying device 1 between the automatic packing device and the inkjet coding device. The robotic arm is used to seal the parts box and place the parts box into the packing box on one side of the roller conveying device 1. When the packing box is full of parts boxes, the robotic arm places the packing box on the roller conveying device 1, and the roller conveying device 1 transports the packing box to the position where the automatic packing device is located. A photoelectric sensor 4 is provided on the frame of the roller conveying device 1 at the position where the automatic packing device is located. When the photoelectric sensor 4 detects the arrival of the packing box, the roller conveying device 1 stops, and the automatic packing device packs the packing box.

6. The push chain conveyor system according to claim 5, characterized in that: The front end of the roller conveying device 1 is connected to a steering mechanism. The steering mechanism includes a roller conveying device 2 docked with the roller conveying device 1. The roller conveying device 2 includes a frame 2. A number of rollers are arranged side by side on the top of the frame 2. A second push chain drive unit is provided inside the frame 2. The top of the second push chain drive unit is connected to a support plate. Two sets of belt conveyor mechanisms arranged oppositely are provided on the top of the support plate. The belt conveyor mechanism includes a driving wheel, a driven wheel, and a belt drivingly connected between the driving wheel and the driven wheel. The two driving wheels and the two driven wheels of the two sets of belt conveyor mechanisms are respectively opposite to each other. The two opposite driving wheels and the two opposite driven wheels are connected by a transmission shaft. The transmission shaft is rotatably connected to the support plate through a fixed shaft seat. The end of the transmission shaft of the driving wheel is connected to a driving motor. The second push chain of the second push chain drive unit extends vertically upward and is fixedly connected to the middle of the bottom end of the support plate. Sliders are respectively provided on the side walls of the support plate. The sliders are slidably connected to a linear guide rail 2 arranged longitudinally and fixedly connected to the inner side of the frame 2. A photoelectric sensor 5 is also provided on the frame 2 to detect whether the packing box reaches the designated position. When it reaches the designated position, the second push chain extends, and the two sets of driving wheels and driven wheels push the belt to rise above the roller conveying device 2 through the gap between the adjacent rollers to realize a 90-degree turn of the packing box.

7. The push chain conveyor system according to claim 6, characterized in that: A roller conveying device 3 is connected to the 90-degree direction on one side of the roller conveying device 2. The roller conveying device 3 is used to dock with the belt conveyor mechanism. The lifting mechanism includes a support frame provided on one side of the roller conveying device 3. A third push chain drive unit is provided at the top of the support frame. The third push chain output by the third push chain drive unit extends vertically downward and is fixedly connected to a bearing plate. The bearing plate is used to receive the packing box transported by the roller conveying device 3. Both sides of the bearing plate are respectively connected to the top of the support frame through a scissor fork mechanism. When the third push chain retracts, it drives the packing box to rise to the designated height.

8. The push chain conveyor system according to claim 7, characterized in that: The roller conveying device 3 includes a frame 3 and a roller conveying device 3 body provided on the top of the frame 3. A photoelectric sensor 6 is provided inside the frame 3 to detect whether the packing box reaches the set position at the top of the roller conveying device 3.

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