A displacement conveying device

Abstract

The present invention relates to a displacement conveying device, belonging to the field of conveying technology. It comprises a PLC controller, a first line body, a second line body, a third line body and a displacement assembly for conveying a cargo tray. The first line body, the second line body and the third line body are arranged in a herringbone shape and the third line body is vertically distributed with the first line body and the second line body. One end of the displacement assembly is docked with the first line body, and the other end of the displacement assembly can selectively turn and dock with the second line body or the third line body. The PLC controller is electrically connected to the displacement assembly. The displacement assembly of the present invention can be converted between the second line body and the third line body in a rotating manner, which effectively solves the problems of slow speed, large impact, and incoherent conveying rhythm of the existing lifting and lateral movement device, thereby improving the conveying efficiency and automation level.

Description

Technical Field

[0001] The invention relates to a displacement conveying device, belonging to the technical field of conveying. Background Art

[0002] Conveyor lines are usually used to transport objects or pallets that need to be processed in assembly or manufacturing plants. In the field of automated transportation, lifting and lateral shifting is usually used as a steering device between conveyor lines to complete the steering and transportation of pallets between conveyor lines in two different conveying directions. In the current environment where most conveyor lines are high-speed conveyor lines, the use conditions of the lifting and lateral shifting device under the existing technology cannot meet the high-speed conveying conditions of the conveyor line speed of more than 60m / min. The main reason is that the lifting and lateral shifting device of the existing technology has a large deceleration impact and a slow corresponding speed, which will affect the conveying rhythm of the pallet. At the same time, there are certain restrictions on the shape and size of the load and the pallet, and the cost is high.

[0003] In the prior art, my country's utility model patent authorization announcement number: CN 215885239 U, discloses a jacking, rotating and lateral shifting conveying equipment. This utility model utilizes the cooperation of a ball screw assembly and a spline shaft, and adopts a single power mechanism to complete the lifting and rotation process of the conveying device. The rotation angle can be achieved by controlling the telescopic range of the cylinder, and the whole process is smooth. However, this jacking and lateral shifting device cannot meet the needs of high-speed conveyor lines, limiting the efficiency and level of the automated conveying system. Therefore, there is an urgent need for a new type of conveyor line steering device that can solve the defects of the prior art, meet the actual needs of high-speed conveying business, and improve the degree of automation and efficiency. Summary of the invention

[0004] The present invention proposes a displacement conveying device, the purpose of which is to solve the defects of the prior art, meet the actual needs of high-speed conveying business, and improve the degree of automation and efficiency.

[0005] The technical solution adopted by the present invention is a displacement conveying device, including a PLC controller, a first wire body, a second wire body, a third wire body and a displacement component for conveying a cargo tray, the first wire body, the second wire body, and the third wire body are arranged in a herringbone shape and the third wire body is distributed perpendicular to the first wire body and the second wire body, one end of the displacement component is connected to the first wire body, and the other end of the displacement component can selectively turn and connect with the second wire body or the third wire body, and the PLC controller is electrically connected to the displacement component.

[0006] Furthermore, the displacement assembly includes a first track mechanism, a second track mechanism and a third track mechanism arranged on the base, the first track mechanism and the second track mechanism move in the horizontal direction, and the third track mechanism moves in the vertical direction, the first track mechanism and the third track mechanism are engaged and cooperated to connect the first line body with the third line body, the second track mechanism is used to connect the first line body with the third line body, and the first track mechanism and the second track mechanism are used to connect the first line body and the second line body respectively.

[0007] Furthermore, when the first line body needs to be connected with the third line body, the first track mechanism and the second track mechanism move toward the third line body, and at the same time the third track mechanism rises to the same height as the first track mechanism, and the third track mechanism is used to extend the first track mechanism to the third line body; when the first line body needs to be connected with the second line body, the first track mechanism and the second track mechanism move toward the second line body, and at the same time the third track mechanism descends to below the first track mechanism.

[0008] Furthermore, the first track mechanism and the second track mechanism have the same structure, both comprising a driving assembly, a connecting conveying device and a steering assembly, the driving assembly providing power for the connecting conveying device to transport the cargo tray, and the steering assembly being used to drive the connecting conveying device to switch positions between the second line body or the third line body.

[0009] Furthermore, the steering assembly includes a first motor, a first reducer, a driving belt, a substrate, a connecting block, a slider and an in-position detection switch. The substrate is installed on the base, and is provided with an arc guide rail, a plurality of pulleys and an arc guide groove. The first motor is connected to the first reducer, and the first reducer passes through the substrate and is connected to the pulley. The driving belt is sleeved on the plurality of pulleys and the bottom end of the driving belt is located in the arc guide groove. A slider is installed on the arc guide rail, and the slider is connected to any side of the driving belt through the connecting block. The in-position detection switch is electrically connected to the PLC controller, and the in-position detection switch is arranged at the other end of the substrate away from the end where the first motor is located and plays a role in in-position detection.

[0010] Furthermore, the steering assembly also includes a collision block, which is located at both ends of the arc-shaped guide rail and plays a role of limiting and buffering.

[0011] Furthermore, the third track mechanism includes a driving mechanism, a connecting conveying device, an upper plate, a lower plate and a lifting driving device. The driving assembly provides power for the connecting conveying device to transport the cargo tray. The upper plate and the lower plate are arranged in parallel. The lifting driving device is located between the upper plate and the lower plate. The lower plate is provided with a guide sleeve, and the upper plate is provided with a guide column. The lifting driving device drives the upper plate to rise or fall while the guide column can move in the guide sleeve.

[0012] Furthermore, the driving mechanism includes a second reducer and a second motor located in the protective cover, and the second motor is connected to the second reducer; the connecting conveying device includes a head shell, a tail shell, a flexible chain, a round belt, a shell fixing part, and a pad, and the two ends of the flexible chain are respectively connected to the head shell and the tail shell, and the shell fixing part and the pad are arranged in sequence under the tail shell. The round belt is mounted on the head shell, the flexible chain, and the tail shell, and the round belt is used to support the cargo tray; the protective cover is installed on the head shell, and the second reducer is connected to the inside of the head shell; under the drive of the second motor, the second reducer drives the round belt to move, and then the round belt moves around the head shell, the flexible chain, and the tail shell.

[0013] Furthermore, the lifting drive device includes a third motor, a third reducer, a cam, a first bearing and a first bearing seat installed on the upper surface of the lower plate. The third motor is connected to the third reducer, the first bearing is installed in the first bearing seat, the first bearing is connected to the cam, the third motor is used to control the rotation angle of the cam, and the cam is used to control the rise or fall of the upper plate.

[0014] Furthermore, the structures of the head shell and the tail shell are the same, and both include shell one, shell two, a connecting piece, a guide strip, a circular pulley, two symmetrically arranged second bearings and two symmetrically arranged third bearings, wherein shell one and shell two are combined to form an outer shell, the connecting piece is fixed to the outer wall of the outer shell, the guide strip, the circular pulley, the second bearing and the third bearing are all located in the outer shell, the circular pulley is provided with a connecting hole connected to the second reducer, a fixing block is provided between the circular pulley and the second bearing, the fixing block axially limits the second bearing, a pulley fixing protrusion is provided above the circular pulley, the pulley fixing protrusion axially limits the circular pulley, the third bearing is located between the pulley fixing protrusion and shell one, and the guide strip is located above shell one.

[0015] Furthermore, the flexible chain comprises a plurality of chain links connected in series, friction strips and round belt guide seats are symmetrically provided on both sides of each chain link, and a stopper for limiting the rotation angle of the chain link is also provided between the chain link and the round belt guide seat.

[0016] Furthermore, the round belt guide seat includes a seat body, a pulley, an inner positioning shaft, and a mounting piece, wherein the pulley is sleeved on the inner positioning shaft, a fourth bearing is provided between the pulley and the inner positioning shaft, the pulley and the inner positioning shaft are installed on the seat body through the mounting piece, and a clearance opening for the round belt to pass through is provided on the seat body, and a stop block protrudes from the upper surface of the seat body below the chain link.

[0017] The present invention discloses a displacement conveying device, which has the beneficial effect that compared with the prior art, the displacement assembly of the present invention can be switched between the second line body and the third line body in a rotating manner, effectively solving the problems of the existing lifting and lateral movement device, such as slow speed, large impact, and incoherent conveying rhythm. The first track mechanism and the second track mechanism of the device move in the horizontal direction, and the third track mechanism moves in the vertical direction, so as to realize the connection of different line bodies. Through the cooperation of the PLC controller and the displacement assembly, it is ensured that the loading tray is safely and accurately transferred from the first line body to the second line body or the third line body at high speed, thereby improving the conveying efficiency and automation level. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 The figure is a schematic front view of the structure of the first wire body and the third wire body in the docking state in the embodiment 1 of the present invention;

[0020] Figure 2 It is a schematic diagram of the displacement assembly structure in the docking state of the first line body and the second line body in Example 1 of the present invention;

[0021] Figure 3 Shown is a schematic structural diagram of the first track mechanism or the second track mechanism in Example 1 of the present invention;

[0022] Figure 4 The figure shows a schematic diagram of the structure of the third track mechanism in Embodiment 1 of the present invention;

[0023] Figure 5 The figure shows a schematic diagram of the structure of the head shell and the driving mechanism in Embodiment 1 of the present invention;

[0024] Figure 6 The figure shows a schematic diagram of the structure of the head shell or tail shell in Embodiment 1 of the present invention;

[0025] Figure 7 The figure shows a schematic cross-sectional structure diagram of the head shell and the driving mechanism in Embodiment 1 of the present invention;

[0026] Figure 8 The figure shows a schematic diagram of the flexible chain structure in Example 1 of the present invention;

[0027] Fig. 9 Shown Figure 2 Schematic diagram of the side view from the left side of the second track mechanism.

[0028] As shown in the figure: 1. First track mechanism; 2. Second track mechanism; 3. Third track mechanism; 4. Base; 5. First line body; 6. Second line body; 7. Third line body; 10. First motor; 11. First reducer; 12. Driving belt; 13. Base plate; 14. Connecting block; 15. Slider; 16. In-position detection switch; 17. Arc guide rail; 18. Pulley; 19. Arc guide groove; 20. Second motor; 21. Second reducer; 22. Protective cover; 23. Block; 24. Pad; 25. Head shell; 26. Tail shell; 27. Flexible chain; 28. Round belt; 29. ​​Shell fixing piece; 40. Upper plate; 41. Lower plate; 42. Guide sleeve; 43. Guide column; 44. Third motor; 45. Third reducer; 46. Cam; 47. First bearing; 48. First bearing seat; 50. Shell one; 51. Shell two; 52. Connector; 53. Guide strip; 54. Round pulley; 55. Second bearing; 56. Third bearing; 57. Connecting hole; 58. Fixing block; 59. Pulley fixing convex block; 60. Chain link; 61. Friction strip; 62. Round belt guide seat; 63. Stopper; 64. Seat body; 65. Pulley; 66. Inner positioning shaft; 67. Mounting piece; 68. Fourth bearing; 69. Clearance opening. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to further understand the content of the present invention, this technical solution is further explained below in conjunction with specific implementation methods.

[0031] Example 1: Figures 1 to 9As shown, this embodiment provides a flexible chain automatic assembly device, including a PLC controller, a first line body 5, a second line body 6, a third line body 7 and a displacement assembly for conveying a carrier tray, wherein the carrier tray is used to hold the required items. The first line body 5, the second line body 6, and the third line body 7 are arranged in a herringbone shape, and the third line body 7 is vertically distributed with the first line body 5 and the second line body 6. One end of the displacement assembly docks with the first line body 5, and the other end of the displacement assembly can selectively turn and dock with the second line body 6 or the third line body 7, that is, the other end of the displacement assembly is converted between the second line body 6 and the third line body 7 in a rotating manner, and the PLC controller is electrically connected to the displacement assembly. Specifically, the displacement assembly includes a first track mechanism 1, a second track mechanism 2, and a third track mechanism 3 arranged on a base 4, wherein the first track mechanism 1 and the third track mechanism 3 are connected and matched to connect the outer track of the first line body 5 and the third line body 7, and the second track mechanism 2 is used to connect the inner track of the first line body 5 and the third line body 7, and the first track mechanism 1 and the second track mechanism 2 are used to connect the first line body 5 and the second line body 6, respectively. The first track mechanism 1 , the second track mechanism 2 , the first line body 5 , the second line body 6 , and the third line body 7 are on the same height level.

[0032] The first track mechanism 1 and the second track mechanism 2 move in the horizontal direction, and the third track mechanism 3 moves in the vertical direction. Specifically, when the first line body 5 and the third line body 7 need to be connected, the first track mechanism 1 and the second track mechanism 2 move toward the third line body 7, and at the same time, the third track mechanism 3 rises to the height of the first track mechanism 1. The third track mechanism 3 is used to extend the first track mechanism 1 to the third line body 7; Figure 2 and Fig. 9 As shown, Figure 2 This is a 45° top view. Fig. 9 for Figure 2 In the left side view, when the first line body 5 and the second line body 6 need to be connected, the first track mechanism 1 and the second track mechanism 2 move toward the second line body 6, and at the same time the third track mechanism 3 descends to below the first track mechanism 1, that is, the third track mechanism 3 descends to below the bottom height of the second track mechanism 2.

[0033] In this embodiment, Figure 3As shown, the first track mechanism 1 and the second track mechanism 2 have the same structure, and both include a driving component, a connecting conveying device and a steering component. The driving component provides power for the connecting conveying device to transport the loading tray, and the steering component is used to drive the connecting conveying device to switch positions between the second line body 6 and the third line body 7. The steering component includes a first motor 10, a first reducer 11, a driving belt 12, a base plate 13, a connecting block 14, a slider 15, a collision block 23 and an in-position detection switch 16. The base plate 13 is mounted on the base 4. The base plate 13 is provided with an arc guide rail 17, four pulleys 18 and an arc guide groove 19. The first motor 10 is connected to the first reducer 11 and the first motor 10 is located close to the direction of the first line body 5. Two pulleys 18 are provided at both ends of the base plate 13. The first reducer 11 passes through the base plate 13 and is connected to the base plate 13. The driving belt 12 is connected to a pulley 18, the driving belt 12 is sleeved on each pulley 18 and the bottom end of the driving belt 12 is located in the arc guide groove 19. The driving belt 12 moves along the arc guide groove 19 under the action of external force. The slider 15 is installed on the arc guide rail 17. The slider 15 is connected to any side of the driving belt 12 through the connecting block 14. Specifically, the slider 15 is fixedly connected to the connecting block 14, and the connecting block 14 is fixedly connected to the driving belt 12, so that the slider 15 and the connecting block 14 move synchronously during the movement of the driving belt 12. The in-place detection switch 16 is electrically connected to the PLC controller. The in-place detection switch 16 is set at the other end of the substrate 13 away from the end where the first motor 10 is located and plays the role of in-place detection. The collision block 23 is located at both ends of the arc guide rail 17 and plays the role of limiting and buffering.

[0034] like Figure 4 As shown, the third track mechanism 3 includes a driving mechanism, a connecting conveying device, an upper plate 40, a lower plate 41 and a lifting driving device. The driving assembly provides power for the connecting conveying device to transport the loading tray. The upper plate 40 and the lower plate 41 are arranged in parallel. The lifting driving device is located between the upper plate 40 and the lower plate 41. The lower plate 41 is provided with a guide sleeve 42, and the upper plate 40 is provided with a guide column 43. The lifting driving device drives the upper plate 40 to rise or fall while the guide column 43 can move in the guide sleeve 42. Specifically, the lifting driving device includes a third motor 44, a third reducer 45, a cam 46, a first bearing 47 and a first bearing seat 48 installed on the upper surface of the lower plate 41. The third motor 44 is connected to the third reducer 45. The first bearing 47 is installed in the first bearing seat 48. The first bearing 47 is connected to the cam 46. The third motor 44 is used to control the rotation angle of the cam 46, and the cam 46 is used to control the rise or fall of the upper plate 40.

[0035] The driving mechanism and connecting conveying device structure of the first track mechanism 1, the second track mechanism 2 and the third track mechanism 3 are the same. Specifically, the driving mechanism includes a second reducer 21 and a second motor 20 located in the protective cover 22, and the second motor 20 is connected to the second reducer 21; the connecting conveying device includes a head shell 25, a tail shell 26, a flexible chain 27, a round belt 28, a shell fixing part 29, and a pad 24, wherein the head shell 25 is located at the outlet end of the first line body 5, the two ends of the flexible chain 27 are respectively connected to the head shell 25 and the tail shell 26, and the shell fixing part 29 and the pad 24 are arranged below the tail shell 26 in sequence, and the round belt 28 is sleeved on the head shell 25, the flexible chain 27, and the tail shell 26, and specifically, the round belt 28 is matched with the round pulley 54 of the head shell 25, the round pulley 54 of the tail shell 26 and the pulley 65 of the flexible chain 27. The round belt 28 is used to support the load tray. Furthermore, the head shell 25 and the tail shell 26 have the same structure, both including a shell 1 50, a shell 2 51, a connecting member 52, a guide strip 53, a circular pulley 54, two symmetrically arranged second bearings 55 and two symmetrically arranged third bearings 56, wherein the shell 1 50 and the shell 2 51 are combined to form an outer shell, the connecting member 52 is fixed to the outer wall of the outer shell, the connecting member 52 is used to connect with the flexible chain 27, the guide strip 53, the circular pulley 54, the second bearing 55, and the third bearing 56 are all located in the outer shell, and the circular pulley 54 is provided with a connecting hole 57 connected to the second reducer 21. Specifically, the protective cover 22 is installed on the head shell 25, and the second reducer 21 extends into the interior of the head shell 25 and is connected to the connecting hole 57 of the circular pulley 54. A fixing block 58 is provided between the round pulley 54 and the second bearing 55, and the fixing block 58 axially limits the second bearing 55. A pulley fixing protrusion 59 is provided above the round pulley 54, and the pulley fixing protrusion 59 axially limits the round pulley 54. The third bearing 56 is located between the pulley fixing protrusion 59 and the housing 1 50. The guide bar 53 is located above the housing 1 50, and the guide bar 53 guides and limits the load tray on the round belt 28 in the conveying direction to prevent the load tray from tipping over. Specifically, the guide bar 53 is located on one side of the round belt 28.

[0036] The backing plates 24 in the first track mechanism 1 and the second track mechanism 2 are fixed on the connecting block 14 , and the backing plate 24 in the third track mechanism 3 is fixed on the upper plate 40 .

[0037] In this embodiment, Figure 8As shown, the flexible chain 27 includes a plurality of chain links 60 connected in series, and friction strips 61 and round belt guide seats 62 are symmetrically provided on both sides of each chain link 60, and a stopper 63 for limiting the rotation angle of the chain link 60 is also provided between the chain link 60 and the round belt guide seat 62. Specifically, the round belt guide seat 62 includes a seat body 64, a pulley 65, an inner positioning shaft 66, and a mounting member 67, wherein the pulley 65 is sleeved on the inner positioning shaft 66, and a fourth bearing 68 is provided between the pulley 65 and the inner positioning shaft 66. The pulley 65 and the inner positioning shaft 66 are installed on the seat body 64 through the mounting member 67, and a clearance opening 69 for the round belt 28 to pass through is provided on the seat body 64, and the stopper 63 protrudes from the upper surface of the seat body 64 located below the chain link 60. The stopper 63 is used to limit the rotation angle of the chain link 60. Specifically, the stopper 63 protrudes from the upper surface of the seat body 64 located below the chain link 60. When the chain link 60 rotates, the chain link 60 contacts the stopper 63 to prevent the chain link 60 from rotating too much, so that when the first track mechanism 1 and the second track mechanism 2 move horizontally toward the second line body 6 or the third line body 7, excessive bending of the flexible chain 27 is avoided. Since the rotation angle of each link 60 is limited and the rotation angle is consistent, when the tail shell 26 moves to the required entrance position of the second line body 6 or the third line body 7, the deflection angle of the flexible chain 27 is just an arc between the first line body 5 and the third line body 7 or a straight line between the first line body 5 and the second line body 6. At this time, the in-position detection switch 16 also detects the in-position signal of the tail shell 26.

[0038] In this embodiment, the length of the first track mechanism 1 and the second track mechanism 2 is the same, and is equal to the distance between the first line body 5 and the second line body 6, wherein the second track mechanism 2 is located on the inner side, and the first track mechanism 1 and the third track mechanism 3 are located on the outer side. When the second track mechanism 2 turns toward the third line body 7, it is exactly equal to the inner track length of the first line body 5 and the third line body 7, and the first track mechanism 1 and the third track mechanism 3 are connected and matched to be exactly equal to the outer track length of the first line body 5 and the third line body 7.

[0039] like Figures 1 to 9As shown, in the actual application process, the operation timing and speed of each component are controlled by the PLC controller. When the first line body 5 and the third line body 7 need to be connected, the first track mechanism 1 and the third track mechanism 3 are located on the outside, and the second track mechanism 2 is located on the inside. The first track mechanism 1 and the second track mechanism 2 are turned and displaced in the direction of the third line body 7. When the first track mechanism 1 moves to the specified position, the third track mechanism 3 rises to the same height as the first track mechanism 1. At this time, the first track mechanism 1 and the third track mechanism 3 are connected and matched to realize the outer track connection between the first line body 5 and the third line body 7, and the second track mechanism 2 realizes the inner track connection between the first line body 5 and the third line body 7. The movement of the first track mechanism 1 is specifically that the PLC controller controls the first motor 10 to rotate forward, the first reducer 11 drives the pulley 18 to rotate, the pulley 18 drives the drive belt 12 to move, and the drive belt 12 drives the connecting block 14, the slider 15, the pad 24 and the tail shell 26 to move along the arc guide rail 17 in the direction close to the third line body 7 during the movement. At this time, the tail shell 26 moves synchronously with the slider 15. When the in-place detection switch 16 detects the position of the slider 15, it feeds back a signal to the PLC controller, indicating that the tail shell 26 has moved to the required position for docking with the third track mechanism 3. At the same time, the third track mechanism 3 rises to the same height as the first track mechanism 1. Specifically, the PLC controller controls the third motor 44 to rotate forward, and then controls the cam 46 to rotate and lift the upper plate 40, so that the third track mechanism 3 is at the same height as the first track mechanism 1, and then controls the second motor 20 in the third track mechanism 3 to rotate forward, and the second reducer 21 drives the round belt 28 to move, and then the round belt 28 rotates around the head shell 25, the flexible chain 27, and the tail shell 26, that is, the round belt 28 cooperates with the round pulley 54 of the head shell 25, the pulley 65 of the flexible chain 27, and the round pulley 54 of the tail shell 26. When the PLC controller receives the in-position signal of the in-position detection switch 16, it controls the second motor 20 in the first track mechanism 1 to rotate forward, and the second reducer 21 drives the round belt 28 to move. The round belt 28 supports the loading tray, and the loading tray moves from the round belt 28 on the first track mechanism 1 to the round belt 28 on the third track mechanism 3 until it moves to the third line body 7, thereby realizing the outer track connection between the first line body 5 and the third line body 7; for safety reasons, when the in-position detection switch 16 fails, the slider 15 is close to the third line body 7. The collision block 23 contacts the direction of the three-wire body 7 to prevent the slider 15 from leaving the arc guide rail 17. The collision block 23 provides safety protection for the equipment. The movement of the second track mechanism 2 is specifically that the PLC controller controls the first motor 10 to rotate forward, the first reducer 11 drives the pulley 18 to rotate, and the pulley 18 drives the drive belt 12 to move. During the movement of the drive belt 12, the connecting block 14, the slider 15, the pad 24 and the tail shell 26 are driven to move along the arc guide rail 17 in the direction close to the third wire body 7. At this time, the tail shell 26 moves synchronously with the slider 15.When the in-place detection switch 16 detects the position of the slider 15, it feeds back a signal to the PLC controller, and then controls the second motor 20 in the second track mechanism 2 to rotate forward, and the second reducer 21 drives the round belt 28 to move, that is, the round belt 28 is driven by the round pulley 54 of the head shell 25, the pulley 65 of the flexible chain 27, and the round pulley 54 of the tail shell 26, so as to realize the connection of the inner track of the first line body 5 to the third line body 7. Similarly, for safety reasons, when the in-place detection switch 16 fails, the slider 15 contacts the collision block 23 near the direction of the third line body 7, preventing the slider 15 from leaving the arc guide rail 17, and the collision block 23 provides safety protection for the equipment. In summary, through the steering displacement of the first track mechanism 1 and the second track mechanism 2 and the rise of the third track mechanism 3, the connection between the first line body 5 and the third line body 7 is realized, so that the loading tray is transported from the first line body 5 to the third line body 7.

[0040] When it is necessary to transform the first line body 5 and the third line body 7 into the first line body 5 and the second line body 6, the third track mechanism 3 falls to the height below the first track mechanism 1, that is, the third track mechanism 3 gives way to the first track mechanism 1, and then the first track mechanism 1 and the second track mechanism 2 turn and shift in the direction of the second line body 6. The PLC controller controls the third track mechanism 3 to fall, specifically, the third motor 44 reverses, and then controls the cam 46 to rotate and separate from the upper plate 40, so that the upper plate 40 falls, and then the third track mechanism 3 falls below the height of the bottom surface of the first track mechanism 1. Then the PLC controller controls the first track mechanism 1 and the second track mechanism 2 to turn from the third line body 7 to the second line body 6, specifically, the first motor 10 reverses, the first reducer 11 drives the pulley 18 to rotate, the pulley 18 drives the drive belt 12 to move, and the drive belt 12 drives the connecting block 14, the slider 15, the pad 24 and the tail shell 26 to move along the arc guide rail 17 in the direction close to the second line body 6, and at this time the tail shell 26 moves synchronously with the slider 15. When the in-position detection switch 16 detects the position of the slider 15, the second motor 20 is controlled to rotate forward, and the second reducer 21 drives the round belt 28 to move, that is, the round belt 28 is driven by the round pulley 54 of the head shell 25, the pulley 65 of the flexible chain 27, and the round pulley 54 of the tail shell 26, so that the first track mechanism 1 and the second track mechanism 2 are turned from docking with the third line body 7 to docking with the second line body 6, that is, the connection between the first line body 5 and the second line body 6 is realized. Through the turning and displacement of the first track mechanism 1 and the second track mechanism 2 and the fall of the third track mechanism 3, the connection between the first line body 5 and the second line body 6 is realized, so that the carrier tray is transported from the first line body 5 to the second line body 6.

[0041] In summary, the displacement assembly can be switched between the second line body 6 and the third line body 7 in a rotational manner.

[0042] Transporting the load tray from the first line body 5 to the second line body 6 or the third line body 7 is diversion transportation, and transporting the load tray from the second line body 6 or the third line body 7 to the first line body 5 is merging transportation, and automatic control is performed according to actual needs.

[0043] It should also be noted that in this embodiment, there are two conveying tracks between the first line body 5 and the second line body 6 or between the first line body 5 and the third line body 7, but it is not limited to this. The technology in this field can intentionally set up multiple conveying tracks.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A displacement conveying device, characterized in that: The invention comprises a PLC controller, a first wire body (5), a second wire body (6), a third wire body (7) and a displacement assembly for conveying a loading tray, wherein the first wire body (5), the second wire body (6) and the third wire body (7) are arranged in a herringbone shape and the third wire body (7) is vertically distributed with the first wire body (5) and the second wire body (6), one end of the displacement assembly is connected to the first wire body (5), and the other end of the displacement assembly can be selectively turned and connected to the second wire body (6) or the third wire body (7), and the PLC controller is electrically connected to the displacement assembly; The assembly comprises a first track mechanism (1), a second track mechanism (2) and a third track mechanism (3) arranged on a base (4); the first track mechanism (1) and the second track mechanism (2) move in a horizontal direction, and the third track mechanism (3) moves in a vertical direction; the first track mechanism (1) and the third track mechanism (3) are engaged and matched to connect the outer tracks of the first line body (5) and the third line body (7); the second track mechanism (2) is used to connect the inner tracks of the first line body (5) and the third line body (7); The first track mechanism (1) and the second track mechanism (2) are used to connect the first line body (5) and the second line body (6) respectively; when the first line body (5) and the third line body (7) need to be connected, the first track mechanism (1) and the second track mechanism (2) move towards the third line body (7), and at the same time, the third track mechanism (3) rises to the same height as the first track mechanism (1), and the third track mechanism (3) is used to extend the first track mechanism (1) to the third line body (7); when the first line body (5) and the second line body (6) need to be connected, the first track mechanism (1) and the second track mechanism (2) move towards the second line body (6), and at the same time, the third track mechanism (3) descends below the first track mechanism (1); the first track mechanism (1) and the second track mechanism (2) have the same structure, and both comprise a driving assembly, a connecting conveying device and a steering assembly, wherein the driving assembly provides power for the connecting conveying device to convey the object tray, and the steering assembly is used to drive the connecting conveying device to switch positions between the second line body (6) and the third line body (7).

2. A displacement conveying device according to claim 1, characterized in that: The steering assembly comprises a first motor (10), a first reducer (11), a driving belt (12), a base plate (13), a connecting block (14), a slider (15) and an in-position detection switch (16). The base plate (13) is mounted on a base (4). The base plate (13) is provided with an arc guide rail (17), a plurality of pulleys (18) and an arc guide groove (19). The first motor (10) is connected to the first reducer (11). The first reducer (11) passes through the base plate (13) and is connected to the pulley (18). ), the driving belt (12) is sleeved on a plurality of pulleys (18) and the bottom end of the driving belt (12) is located in an arc guide groove (19), a slider (15) is installed on the arc guide rail (17), the slider (15) is connected to any side of the driving belt (12) through a connecting block (14), an in-position detection switch (16) is electrically connected to a PLC controller, and the in-position detection switch (16) is arranged at the other end of the substrate (13) away from the end where the first motor (10) is located and plays a role in in-position detection.

3. A displacement conveying device according to claim 1, characterized in that: The third track mechanism (3) comprises a driving mechanism, a connecting conveying device, an upper plate (40), a lower plate (41) and a lifting driving device, wherein the driving assembly provides power for the connecting conveying device to convey the object tray, the upper plate (40) and the lower plate (41) are arranged in parallel, the lifting driving device is located between the upper plate (40) and the lower plate (41), the lower plate (41) is provided with a guide sleeve (42), and the upper plate (40) is provided with a guide column (43), and the lifting driving device drives the upper plate (40) to rise or fall while the guide column (43) can move in the guide sleeve (42).

4. A displacement conveying device according to claim 1 or 3, characterized in that: The driving mechanism comprises a second reducer (21) and a second motor (20) located in the protective cover (22), and the second motor (20) is connected to the second reducer (21); the connecting conveying device comprises a head shell (25), a tail shell (26), a flexible chain (27), a round belt (28), a shell fixing member (29), and a pad (24); the two ends of the flexible chain (27) are respectively connected to the head shell (25) and the tail shell (26), and the shell fixing member (29) and the pad (24) are arranged in sequence below the tail shell (26); the round belt (28) is used to support the loading tray; the protective cover (22) is installed on the head shell (25), and the second reducer (21) is connected to the inside of the head shell (25); under the drive of the second motor (20), the second reducer (21) drives the round belt (28) to move, and then the round belt (28) moves around the head shell (25), the flexible chain (27), and the tail shell (26).

5. The displacement conveying device according to claim 3, characterized in that: The lifting drive device comprises a third motor (44), a third reducer (45), a cam (46), a first bearing (47) and a first bearing seat (48) mounted on the upper surface of the lower plate (41); the third motor (44) is connected to the third reducer (45); a first bearing (47) is mounted in the first bearing seat (48); the first bearing (47) is connected to the cam (46); the third motor (44) is used to control the rotation angle of the cam (46); and the cam (46) is used to control the upper plate (40) to rise or fall.

6. The displacement conveying device according to claim 4, characterized in that: The head shell (25) and the tail shell (26) have the same structure, and both include a shell body (50), a shell body (51), a connecting piece (52), a guide strip (53), a round pulley (54), two symmetrically arranged second bearings (55), and two symmetrically arranged third bearings (56), wherein the shell body (50) and the shell body (51) are combined to form a shell, the connecting piece (52) is fixed to the outer wall of the shell, the guide strip (53), the round pulley (54), the second bearing (55), and the third bearing (56) are all located in the shell, and the round pulley (54) is provided with a connecting hole (57) connected to the second reducer (21), a fixing block (58) is provided between the round pulley (54) and the second bearing (55), the fixing block (58) axially limits the second bearing (55), a pulley fixing protrusion (59) is provided above the round pulley (54), the pulley fixing protrusion (59) axially limits the round pulley (54), the third bearing (56) is located between the pulley fixing protrusion (59) and the housing one (50), and the guide strip (53) is located above the housing one (50).

7. The displacement conveying device according to claim 4, characterized in that: The flexible chain (27) comprises a plurality of chain links (60) connected in series, and friction strips (61) and round belt guide seats (62) are symmetrically provided on both sides of each chain link (60). A stopper (63) for limiting the rotation angle of the chain link (60) is provided between the chain link (60) and the round belt guide seat (62). The round belt guide seat (62) comprises a seat body (64), a belt pulley (65), an inner positioning shaft (66), and a mounting member (67), wherein the belt pulley (65) is sleeved on the inner positioning shaft (66), a fourth bearing (68) is provided between the belt pulley (65) and the inner positioning shaft (66), the belt pulley (65) and the inner positioning shaft (66) are installed on the seat body (64) through the mounting member (67), and a clearance opening (69) for the round belt (28) to pass through is provided on the seat body (64), and the stopper (63) protrudes from the upper surface of the seat body (64) located below the chain link (60).

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