Anti-twist telescopic drum line and car loading and unloading system

Abstract

The application provides an anti-twist telescopic roller line and loading and unloading system, which comprises a series of telescopic roller units, each of which comprises at least one roller for supporting and conveying materials; a scissor plate assembly arranged on both sides of the roller unit; the scissor plate assembly comprises a plurality of parallel arranged first scissor plates and a plurality of parallel arranged second scissor plates; each roller is hinged with the upper ends of the corresponding first scissor plate and second scissor plate at the same time, and the first scissor plate and the second scissor plate are cross connected two by two; a locking assembly is connected with the first scissor plate and the second scissor plate, and is used for limiting the opposite movement between the first scissor plate and the second scissor plate. The application can prevent the telescopic roller line from twisting left and right, and further avoid the falling of articles caused by the too large local gap of the telescopic roller line.

Description

Technical Field

[0001] This invention relates to logistics robots, and more specifically, to a torsion-resistant telescopic roller conveyor and a loading and unloading system. Background Technology

[0002] A telescopic roller conveyor is an automated logistics device primarily used for material conveying and storage in warehouses, factories, distribution centers, and other similar locations. It consists of a series of rollers, which can be powered or unpowered, and can extend or retract to accommodate material conveying needs of varying lengths.

[0003] Telescopic roller conveyors can be used in conjunction with other logistics equipment such as conveyor belts, lifting platforms, and sorting systems to form a complete automated logistics system.

[0004] Intelligent robots are smart devices equipped with sensors, lenses, and electro-optical systems that can quickly sort and transport goods.

[0005] More and more visual and force sensors will be used in intelligent robots, making them increasingly intelligent. With advancements in sensing and recognition systems, artificial intelligence, and other technologies, robots are evolving from being controlled unidirectionally to storing and applying their own data, gradually becoming information-based.

[0006] In order to expand the application scenarios and scope of intelligent robots, existing technologies have created mobile robots by installing intelligent robots on mobile bases, thereby enabling the intelligent robots to move and perform functions such as mobile depalletizing and mobile picking.

[0007] One of the core aspects of warehousing and factory logistics is the use of mobile robots to place materials onto the telescopic roller conveyor for material transport. However, when the telescopic roller conveyor is stretched, the distance between adjacent rollers becomes too large, causing small pieces of material to get stuck between them, reducing transport efficiency. Summary of the Invention

[0008] In view of the deficiencies in the prior art, the purpose of this invention is to provide a torsion-resistant telescopic roller conveyor and a loading and unloading system.

[0009] The anti-torsion telescopic roller conveyor provided by the present invention includes:

[0010] A series of retractable roller units, each roller unit including at least one roller for supporting and conveying materials;

[0011] A drive mechanism is used to drive the roller to rotate in order to convey materials;

[0012] A scissor plate assembly is disposed on both sides of the roller unit; the scissor plate assembly includes a plurality of parallel first scissor plates and a plurality of parallel second scissor plates; each roller is simultaneously hinged to the upper end of the corresponding first scissor plate and second scissor plate, and the first scissor plates and the second scissor plates are cross-connected in pairs;

[0013] A locking component, connecting the first scissor plate and the second scissor plate, is used to restrict the relative movement between the first scissor plate and the second scissor plate.

[0014] Preferably, the middle section of the first scissor plate is hinged to the middle section of the corresponding second scissor plate; the upper end of the first scissor plate is hinged to the upper end of the preceding second scissor plate, and the lower end is hinged to the bottom end of the following second scissor plate.

[0015] The middle section of the second scissor plate is hinged to the middle section of the corresponding first scissor plate; the upper end of the second scissor plate is hinged to the upper end of the next first scissor plate, and the lower end is hinged to the bottom end of the previous first scissor plate.

[0016] Preferably, it further includes a first link and a second link;

[0017] The middle sections of the first scissor plate and the second scissor plate on one side of the roller unit are connected to the middle sections of the first scissor plate and the second scissor plate on the other side of the roller unit via the first connecting rod;

[0018] The bottom ends of the first scissor plate and the second scissor plate on one side of the roller unit are connected to the bottom ends of the first scissor plate and the second scissor plate on the other side of the roller unit via the second connecting rod.

[0019] Preferably, limit shoulders are provided at both ends of the first connecting rod and the second connecting rod;

[0020] The locking assembly is used to limit the first scissor plate and the second scissor plate on the limiting shoulder, and to restrict the axial movement of the first scissor plate and the second scissor plate along the direction of the first link and the second link.

[0021] Preferably, the locking assembly includes a first nut and a second nut;

[0022] The ends of the first connecting rod and the second connecting rod are respectively threaded to a first nut;

[0023] The first nut is used to fix the first scissor plate and the second scissor plate to the first connecting rod and the second connecting rod;

[0024] A second nut is threaded between the first scissor plate and the second scissor plate on each of the first and second links;

[0025] The second nut is used to restrict the axial movement of the first scissor plate and the second scissor plate along the direction of the first link and the second link, and to keep the first scissor plate and the second scissor plate able to rotate about the first link and the second link.

[0026] Preferably, when the roller unit is stretched, the distance between adjacent rollers increases;

[0027] The angle between the first and second scissor blades, which are cross-connected, increases.

[0028] Preferably, a limiting stop is connected to each end of the roller unit;

[0029] The lower end of the limiting stop is provided with a waist hole extending along the length direction;

[0030] The two ends of the second connecting rod are respectively located in the waist hole of the limiting stop.

[0031] Preferably, it further includes: a support rod;

[0032] The support rod is disposed between adjacent rollers;

[0033] When the rollers are stretched, the distance between adjacent rollers increases; the support rod is located in the middle between two adjacent rollers to support the middle area between adjacent rollers.

[0034] Preferably, one end of the support rod is hinged to a first scissor plate located on one side of the roller unit via a first connecting piece, and to a second scissor plate located on one side of the roller unit via a second connecting piece;

[0035] The other end of the support rod is hinged to the first scissor plate located on the other side of the roller unit via a third connecting piece, and to the second scissor plate located on the other side of the roller unit via a fourth connecting piece.

[0036] The loading and unloading system provided by the present invention includes: the telescopic roller conveyor, and also includes a mobile loading and unloading vehicle, a material pallet, and a mobile robot;

[0037] Mobile loading and unloading vehicle, used to place materials to be unloaded on its on-board conveyor or the telescopic roller line;

[0038] The telescopic roller conveyor is connected to the mobile loading and unloading vehicle at its front end and to the mobile robot at its rear end, and is used to transport materials to the working range of the mobile robot.

[0039] Material trays are positioned on both sides of the mobile robot;

[0040] A mobile robot is used to stack the materials delivered by the telescopic roller conveyor onto the material pallet.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] This invention includes a series of retractable roller units, each comprising at least one roller for supporting and conveying materials. The rollers are driven to rotate via a drive mechanism to convey the materials. Scissor plate assemblies are provided on both sides of each roller unit. Each scissor plate assembly includes multiple parallel first scissor plates and multiple parallel second scissor plates. Each roller is simultaneously hinged to the upper end of its corresponding first and second scissor plates, with the first and second scissor plates intersecting each other. A locking assembly connects the first and second scissor plates and restricts their relative movement, thereby preventing the retractable roller line from twisting left and right, and thus avoiding items falling due to excessively large gaps in the retractable roller line. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort. Other features, objects, and advantages of the present invention will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0044] Figure 1 This is a schematic diagram of the structure of the telescopic roller conveyor in an embodiment of the present invention;

[0045] Figure 2 A schematic diagram of the drive mechanism in an embodiment of the present invention is shown;

[0046] Figure 3 A schematic diagram of the locking component in an embodiment of the present invention is shown;

[0047] Figure 4 This is a schematic diagram of the scissor lift assembly in an embodiment of the present invention;

[0048] Figure 5 This is a schematic diagram of the installation of the support rod in a modified example of the present invention;

[0049] Figure 6 This is a schematic diagram of the stretched state of the telescopic roller line in an embodiment of the present invention;

[0050] Figure 7This is a schematic diagram of the loading and unloading system in an embodiment of the present invention;

[0051] Figure 8 This is a schematic diagram of the structure of the mobile loading and unloading vehicle in an embodiment of the present invention; and

[0052] Figure 9 This is a schematic diagram of the structure of the mobile robot in an embodiment of the present invention.

[0053] In the picture:

[0054] 1 is a telescopic roller conveyor; 101 is a roller unit; 1011 is a roller; 102 is a drive mechanism; 1021 is a drive motor; 1022 is a transmission belt; 1023 is a first pulley; 1024 is a second pulley; 103 is a scissor lift assembly; 1031 is a first scissor lift; 1032 is a second scissor lift; 1033 is a limit stop; 104 is a locking assembly; 1041 is a first nut; 1042 is a second nut; 1043 is a first... Linkage; 1044 is the second link; 105 is the support rod; 1051 is the first connecting piece; 1052 is the second connecting piece; 1053 is the third connecting piece; 1054 is the fourth connecting piece; 2 is the mobile robot; 201 is the second mobile base; 202 is the second robotic arm; 203 is the bottom clamp; 3 is the mobile loading and unloading vehicle; 301 is the first mobile base; 302 is the first robotic arm; 4 is the container; 5 is the vehicle-mounted conveying mechanism; 6 is the material pallet. Detailed Implementation

[0055] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0056] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0057] The technical solution of the present invention will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0058] The technical solutions of the present invention and how they solve the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0059] Figure 1 This is a schematic diagram of the structure of the telescopic roller conveyor in an embodiment of the present invention, as shown below. Figure 1 As shown, the anti-torsion telescopic roller liner 1 provided by the present invention includes:

[0060] A series of retractable roller units 101, each roller unit 101 including at least one roller 1011 for supporting and conveying materials;

[0061] The drive mechanism 102 is used to drive the roller 1011 to rotate so as to realize the conveying of materials;

[0062] A scissor plate assembly 103 is disposed on both sides of the roller unit 101; the scissor plate assembly 103 includes a plurality of parallel first scissor plates 1031 and a plurality of parallel second scissor plates 1032; each roller 1011 is simultaneously hinged to the upper end of the corresponding first scissor plate 1031 and second scissor plate 1032, and the first scissor plates 1031 and second scissor plates 1032 are cross-connected in pairs;

[0063] Locking component 104 connects the first scissor plate 1031 and the second scissor plate 1032, and is used to restrict the relative movement between the first scissor plate 1031 and the second scissor plate 1032.

[0064] Figure 2 A schematic diagram of the drive mechanism in an embodiment of the present invention is shown, as follows: Figure 2 As shown, the drive mechanism 102 includes a drive motor 1021, a transmission belt 1022, a first pulley 1023, and a second pulley 1024;

[0065] The drive motor 1021 drives the first pulley 1023 through a reducer; the first pulley 1023 is connected to the second pulley 1024 through a transmission belt 1022.

[0066] The second pulley 1024 is disposed at one end of the roller 1011 and is used to drive the roller 1011 to rotate.

[0067] In this embodiment of the invention, the drive motor 1021 is mounted on the support leg on the lower side of the roller unit 101.

[0068] Figure 3 A schematic diagram of the locking component in an embodiment of the present invention is shown, as follows: Figure 3 As shown, the locking assembly 104 includes a first nut 1041, a second nut 1042, a first connecting rod 1043, and a second connecting rod 1044;

[0069] The ends of the first connecting rod 1043 and the second connecting rod 1044 are respectively threaded to a first nut 1041;

[0070] The first nut 1041 is used to fix the first scissor plate 1031 and the second scissor plate 1032 to the first connecting rod 1043 and the second connecting rod 1044;

[0071] The second nut 1042 is threaded between the first scissor plate 1031 and the second scissor plate 1032 on each of the first link 1043 and the second link 1044;

[0072] The second nut 1042 is used to restrict the axial movement of the first scissor plate 1031 and the second scissor plate 1032 along the direction of the first connecting rod 1043 and the second connecting rod 1044, and to keep the first scissor plate 1031 and the second scissor plate 1032 able to rotate around the first connecting rod 1043 and the second connecting rod 1044.

[0073] In this embodiment of the invention, the middle sections of the first scissor plate 1031 and the second scissor plate 1032 on one side of the roller unit 101 are connected to the middle sections of the first scissor plate 1031 and the second scissor plate 1032 on the other side of the roller unit 101 via the first connecting rod 1043.

[0074] The bottom ends of the first scissor plate 1031 and the second scissor plate 1032 on one side of the roller unit 101 are connected to the bottom ends of the first scissor plate 1031 and the second scissor plate 1032 on the other side of the roller unit 101 via the second connecting rod 1044.

[0075] Figure 4 This is a schematic diagram of the scissor lift assembly in an embodiment of the present invention, as shown below. Figure 4 As shown, the middle section of the first scissor plate 1031 is hinged to the middle section of the corresponding second scissor plate 1032; the upper end of the first scissor plate 1031 is hinged to the upper end of the preceding second scissor plate 1032, and the lower end is hinged to the bottom end of the following second scissor plate 1032.

[0076] The middle section of the second scissor plate 1032 is hinged to the middle section of the corresponding first scissor plate 1031; the upper end of the second scissor plate 1032 is hinged to the upper end of the next first scissor plate 1031, and the lower end is hinged to the bottom end of the previous first scissor plate 1031.

[0077] In this embodiment of the invention, each roller 1011 is provided with limiting flanges 1033 at both ends;

[0078] The two ends of the roller 1011 are respectively connected to a limiting stop 1033; the lower end of the limiting stop 1033 is provided with a waist hole extending along the length direction;

[0079] The two ends of the second connecting rod 1044 are respectively located in the waist hole of the limiting stop 1033, so the two ends of the second connecting rod 1044 can move up and down along the waist hole to realize the extension and retraction of the telescopic roller line 1.

[0080] The limiting stop 1033 is located outside the first scissor plate 1031 and the second scissor plate 1032; the upper end of the limiting stop 1033 is disposed together with the first scissor plate 1031 and the second scissor plate 1032 on the mounting shaft of the roller 1011.

[0081] The limiting stop 1033 is used to prevent materials such as boxes from falling off the roller unit 101.

[0082] In one embodiment of the present invention, each roller unit 101 is provided with limit stops 1033 at both ends;

[0083] The upper end of the limiting stop 1033 extends into a transverse stop along the extending direction of the roller unit 101;

[0084] A side-stop roller is provided at each end of the transverse side-stop.

[0085] The two adjacent limiting edges 1033 have different heights and the transverse edges are misaligned in the width direction;

[0086] When the roller unit 101 is compressed, an adjacent limiting stop 1033 retracts to the lower side of the other limiting stop 1033.

[0087] In one embodiment of the present invention, the roller unit 101 is provided with a plurality of support legs, which facilitates the movement of the roller unit 101 and the extension and retraction of the roller unit 101.

[0088] In this embodiment of the invention, limit shoulders are provided at both ends of the first connecting rod 1043 and the second connecting rod 1044;

[0089] The locking assembly 104 is used to limit the first scissor plate 1031 and the second scissor plate 1032 on the limiting shoulder, and to restrict the axial movement of the first scissor plate 1031 and the second scissor plate 1032 along the direction of the first connecting rod 1043 and the second connecting rod 1044.

[0090] Figure 5 This is a schematic diagram of the installation of the support rod in a modified embodiment of the present invention, as shown below. Figure 5 As shown, the anti-torsion telescopic roller line provided by the present invention further includes: a support rod 105;

[0091] The support rod 105 is disposed between adjacent rollers 1011;

[0092] When the roller 1011 is stretched, the distance between adjacent rollers 1011 increases; the support rod 105 is located in the middle between two adjacent rollers 1011 to support the middle area between adjacent rollers 1011.

[0093] In this embodiment of the invention, one end of the support rod 105 is hinged to the first scissor plate 1031 located on one side of the roller unit 101 via the first connecting piece 1051, and the second scissor plate 1032 located on one side of the roller unit 101 via the second connecting piece 1052.

[0094] The other end of the support rod 105 is hinged to the first scissor plate 1031 located on the other side of the roller unit 101 via the third connecting piece 1053, and to the second scissor plate 1032 located on the other side of the roller unit 101 via the fourth connecting piece 1054.

[0095] Figure 6 This is a schematic diagram of the stretched state of the telescopic roller line in an embodiment of the present invention, as shown below. Figure 6 As shown, when the roller unit 101 is stretched, the distance between adjacent rollers 1011 increases;

[0096] The angle between the first scissor plate 1031 and the second scissor plate 1032, which are cross-connected, becomes larger.

[0097] Figure 7 This is a schematic diagram of the loading and unloading system in an embodiment of the present invention, as shown below. Figure 7 As shown, the mobile robot-based unloading system provided by the present invention includes: a mobile loading and unloading vehicle 3, a material pallet 6, a telescopic roller conveyor 1, and a mobile robot 2.

[0098] Mobile loading and unloading vehicle 3 is used to place the materials to be unloaded on the vehicle-mounted conveyor mechanism 5 or the telescopic roller line 1;

[0099] The telescopic roller conveyor 1 is connected to the mobile loading and unloading vehicle 3 at its front end and to the mobile robot 2 at its rear end, and is used to convey materials to the working range of the mobile robot 2.

[0100] Mobile robot 2 is used to stack the materials conveyed by the telescopic roller conveyor 1 onto the material tray 6;

[0101] Material trays 6 are positioned on both sides of the mobile robot 2.

[0102] In this embodiment of the invention, multiple material pallets 6 are arranged sequentially to form a pallet array, and a moving channel is formed between two rows of pallet arrays; the moving channel is used for the movement of the mobile loading and unloading vehicle 3 when it loads materials; the mobile loading and unloading vehicle 3 moves along the moving channel to stack the materials on the telescopic roller line 1 onto the material pallets 6 in sequence.

[0103] In this embodiment of the invention, the length ratio between the stretched state and the compressed state of the telescopic roller 1 is between 2 and 3, preferably 2.5.

[0104] The material is the target container.

[0105] In this embodiment of the invention, the telescopic roller line 1 is provided with an inclined roller. By setting the inclined roller, the target box on the telescopic roller line 1 can be gathered to the side, and the target box is gathered to a sorting table. The camera unit is set to capture the image of the target box on the sorting table, and then the mobile robot 2 is controlled to grab and place the gathered target box.

[0106] Figure 8 This is a schematic diagram of the structure of the mobile loading and unloading vehicle in an embodiment of the present invention, as shown below. Figure 8 As shown, the mobile loading and unloading vehicle 3 includes:

[0107] The first movable base 301 is used to move to any position or pause at any position according to the received control command and to determine the orientation angle.

[0108] The vehicle-mounted conveying mechanism 5 is mounted on the first movable base 301 and extends from the front end of the first movable base 301 to the rear end of the first movable base 301 for conveying materials.

[0109] The first robotic arm 302 is mounted on the first mobile base 301 and is used to place materials onto the vehicle-mounted conveyor 5, or to grab materials from the vehicle-mounted conveyor 5 and load them onto a vehicle.

[0110] The material conveying mechanism is connected at its front end to the rear end of the first mobile base 301 and is connected to the vehicle-mounted conveying mechanism 5 to realize the conveying of materials from the vehicle-mounted conveying mechanism 5 to the material conveying mechanism.

[0111] In this embodiment of the invention, the material conveying mechanism adopts the telescopic roller conveyor 1;

[0112] The first robotic arm 302 can rotate 90° to place the material onto the vehicle-mounted conveying mechanism 5 when it is suctioning the target box from the side, or it can rotate 180° to place the material onto the material conveying mechanism 5 when it is suctioning the material from the side.

[0113] Preferably, the target box is side-suctioned or top-suctioned and then rotated 90° to place the material onto the vehicle-mounted conveying mechanism 5, which then transports the material to the material conveying mechanism to improve the unloading efficiency of the material.

[0114] When there are requirements for the placement angle of the material, it can be rotated 180° to place the material on the material conveying mechanism.

[0115] In this embodiment of the invention, the vehicle-mounted conveying mechanism 5 includes a first vehicle-mounted conveying section and a second vehicle-mounted conveying section;

[0116] An S-shaped structure is formed between the first vehicle-mounted conveyor section and the second vehicle-mounted conveyor section;

[0117] The first vehicle-mounted conveying section and the second vehicle-mounted conveying section work together to transport the materials to the material conveying mechanism via an S-shaped route.

[0118] The first vehicle-mounted conveying section includes a plurality of first rollers arranged in sequence; the diameter of the first rollers gradually increases from the inner end of the first rollers to the outer end of the first rollers;

[0119] The second vehicle-mounted conveying section includes a plurality of second rollers arranged in sequence; the diameter of the second rollers gradually decreases from the inner end of the second rollers to the outer end of the second rollers.

[0120] The mobile loading and unloading vehicle 3 includes:

[0121] The first movable base 301 is used to move to any position or pause at any position according to the received control command and to determine the orientation angle.

[0122] The first robotic arm 302 is mounted on the first movable base 301 and is used to continuously grab materials from the material tray 6 and place them onto the telescopic roller line 1.

[0123] The first visual perception module is located at the end of the first robotic arm 302 and is used to collect image information of the materials on the material tray 6.

[0124] Figure 9 This is a schematic diagram of the structure of the mobile robot in an embodiment of the present invention, such as... Figure 9 As shown, the mobile robot 2 includes:

[0125] The second mobile base 201 is used to move to any position or pause at any position according to the received control command and to determine the orientation angle.

[0126] The second robotic arm 202 is mounted on the second mobile base 201 and is used to continuously grab and stack the material assembly on the material handling line body 401.

[0127] The end of the second robotic arm 202 is provided with a bottom support clamp 203.

[0128] In this embodiment of the invention, a series of retractable roller units are provided, each roller unit including at least one roller for supporting and conveying materials. The rollers are driven to rotate by a drive mechanism to convey materials. Scissor plate assemblies are provided on both sides of each roller unit. The scissor plate assembly includes multiple parallel first scissor plates and multiple parallel second scissor plates. Each roller is simultaneously hinged to the upper end of the corresponding first and second scissor plates, and the first and second scissor plates are cross-connected in pairs. The first and second scissor plates are connected by a locking assembly and the relative movement between the first and second scissor plates is restricted, thereby preventing the retractable roller line from twisting left and right, and thus avoiding items falling off due to excessively large local gaps in the retractable roller line.

[0129] The first mobile base moves to any position or pauses at any position and determines the orientation angle according to the received control command. The vehicle-mounted conveying mechanism is set on the first mobile base and extends from the front end of the first mobile base to the rear end of the first mobile base for material conveying. The front end of the material conveying mechanism is connected to the rear end of the first mobile base and is opposite to the vehicle-mounted conveying mechanism to realize the conveying of materials from the vehicle-mounted conveying mechanism to the material conveying mechanism. The first robotic arm is set on the first mobile base and can suck the material from the side or top and rotate it 90° to place the material on the vehicle-mounted conveying mechanism, which will then convey it to the material conveying mechanism to improve the unloading efficiency of the material. Alternatively, when there are requirements for the placement angle of the material, it can suck the material from the side and rotate it 180° to place the material on the material conveying mechanism.

[0130] The various embodiments described in this specification are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0131] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A torsion-resistant telescopic roller conveyor, characterized in that, include: A series of retractable roller units, each roller unit including at least one roller for supporting and conveying materials; A drive mechanism is used to drive the roller to rotate in order to convey materials; A scissor plate assembly is disposed on both sides of the roller unit; the scissor plate assembly includes a plurality of parallel first scissor plates and a plurality of parallel second scissor plates; each roller is simultaneously hinged to the upper end of the corresponding first scissor plate and second scissor plate, and the first scissor plates and the second scissor plates are cross-connected in pairs; A locking component, connecting the first scissor plate and the second scissor plate, is used to restrict the relative movement between the first scissor plate and the second scissor plate.

2. The anti-torsion telescopic roller conveyor according to claim 1, characterized in that, The middle section of the first scissor plate is hinged to the middle section of the corresponding second scissor plate; the upper end of the first scissor plate is hinged to the upper end of the preceding second scissor plate, and the lower end is hinged to the bottom end of the following second scissor plate. The middle section of the second scissor plate is hinged to the middle section of the corresponding first scissor plate; the upper end of the second scissor plate is hinged to the upper end of the next first scissor plate, and the lower end is hinged to the bottom end of the previous first scissor plate.

3. The telescopic roller conveyor according to claim 1, characterized in that, It also includes the first link and the second link; The middle sections of the first scissor plate and the second scissor plate on one side of the roller unit are connected to the middle sections of the first scissor plate and the second scissor plate on the other side of the roller unit via the first connecting rod; The bottom ends of the first scissor plate and the second scissor plate on one side of the roller unit are connected to the bottom ends of the first scissor plate and the second scissor plate on the other side of the roller unit via the second connecting rod.

4. The anti-torsion telescopic roller conveyor according to claim 3, characterized in that, Limit shoulders are provided at both ends of the first link and the second link; The locking assembly is used to limit the first scissor plate and the second scissor plate on the limiting shoulder, and to restrict the axial movement of the first scissor plate and the second scissor plate along the direction of the first link and the second link.

5. The anti-torsion telescopic roller conveyor according to claim 4, characterized in that, The locking assembly includes a first nut and a second nut; The ends of the first connecting rod and the second connecting rod are respectively threaded to a first nut; The first nut is used to fix the first scissor plate and the second scissor plate to the first connecting rod and the second connecting rod; A second nut is threaded between the first scissor plate and the second scissor plate on each of the first and second links; The second nut is used to restrict the axial movement of the first scissor plate and the second scissor plate along the direction of the first link and the second link, and to keep the first scissor plate and the second scissor plate able to rotate about the first link and the second link.

6. The anti-torsion telescopic roller conveyor according to claim 4, characterized in that, When the roller unit is stretched, the distance between adjacent rollers increases; The angle between the first and second scissor blades, which are cross-connected, increases.

7. The anti-torsion telescopic roller conveyor according to claim 3, characterized in that, Each end of the roller unit is connected to a limiting stop; The lower end of the limiting stop is provided with a waist hole extending along the length direction; The two ends of the second connecting rod are respectively located in the waist hole of the limiting stop.

8. The anti-torsion telescopic roller conveyor according to claim 1, characterized in that, Also includes: Support rod; The support rod is disposed between adjacent rollers; When the rollers are stretched, the distance between adjacent rollers increases; the support rod is located in the middle between two adjacent rollers to support the middle area between adjacent rollers.

9. The anti-torsion telescopic roller conveyor according to claim 8, characterized in that, One end of the support rod is hinged to a first scissor plate located on one side of the roller unit via a first connecting piece, and to a second scissor plate located on one side of the roller unit via a second connecting piece; The other end of the support rod is hinged to the first scissor plate located on the other side of the roller unit via a third connecting piece, and to the second scissor plate located on the other side of the roller unit via a fourth connecting piece.

10. A loading and unloading system, characterized in that, include: The telescopic roller conveyor according to any one of claims 1 to 9 further includes a mobile loading and unloading vehicle, a material pallet, and a mobile robot; Mobile loading and unloading vehicle, used to place materials to be unloaded on its on-board conveyor or the telescopic roller line; The telescopic roller conveyor is connected to the mobile loading and unloading vehicle at its front end and to the mobile robot at its rear end, and is used to transport materials to the working range of the mobile robot. Material trays are positioned on both sides of the mobile robot; A mobile robot is used to stack the materials delivered by the telescopic roller conveyor onto the material pallet.

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