Connection device and conveyor line system

Abstract

The invention discloses a connecting device and a conveying line system, and relates to the technical field of automatic logistics conveying lines, the connecting device is used for transferring turnover boxes between at least two conveying lines with different breadths, the connecting device comprises a rack and a rotating mechanism, the rotating mechanism comprises a lifting driving part, a rotating driving part and a clamping module, and the lifting driving part is connected with the rotating driving part. The lifting driving piece is arranged on the rack; the rotary driving piece is connected to the output end of the lifting driving piece so as to be capable of lifting relative to the rack; the clamping module can clamp or release the turnover box and is connected to the output end of the rotary driving part so as to rotate relative to the rack, and the posture of the turnover box can be suitable for conveying lines with different breadths. According to the technical scheme, the rotating mechanism comprising the lifting driving piece, the rotating driving piece and the clamping module is arranged in the connecting device, so that switching of conveying postures can be achieved, and the problem of passing interference or procedure adaptation caused by the fact that the postures are fixed when the turnover box flows between different conveying lines is solved.

Description

Technical Field

[0001] This invention relates to the field of automated logistics conveyor technology, and in particular to a connecting device and conveyor system. Background Technology

[0002] In automated logistics conveying systems, to adapt to the needs of multi-variety and flexible production, it is often necessary to configure conveyor lines of various specifications to accommodate turnover boxes of different sizes. However, existing turnover box handling equipment generally relies on actuators such as cylinders to achieve linear movements such as lifting and clamping, and its function is limited to simple depalletizing or palletizing operations.

[0003] When turnover boxes need to be moved between different workstations, existing equipment struggles to adjust their orientation without interrupting the flow, whether due to interference caused by changes in conveyor line width or adjustments required by downstream processes for specific side operations. This easily leads to problems such as jams, blockages, and misaligned operations, severely restricting the continuity of the conveying system. Summary of the Invention

[0004] The main objective of this invention is to propose a connecting device and a conveyor system, which aims to solve the problems of traffic interference or process adaptation caused by the fixed posture of turnover boxes when they are transferred between different conveyor lines.

[0005] To achieve the above objectives, the present invention proposes a connecting device for transferring turnover boxes between at least two conveyor lines with different widths. The connecting device includes a frame and a rotating mechanism, the rotating mechanism comprising: A lifting drive component is mounted on the frame; A rotary drive component, connected to the output end of the lifting drive component, is capable of lifting relative to the frame; and A clamping module is capable of clamping or releasing turnover boxes. The clamping module is connected to the output end of the rotary drive component so as to rotate relative to the frame and adapt the position of the turnover boxes to the conveyor lines of different widths.

[0006] In one embodiment, the rotating mechanism further includes a first mounting bracket and a transmission structure. The rotating drive is connected to the output end of the lifting drive through the first mounting bracket. The transmission structure includes a rotating shaft and a linkage mechanism. The clamping module is rotatably mounted on the first mounting bracket via the rotating shaft. The output end of the rotating drive drives the rotating shaft to rotate via the linkage mechanism.

[0007] In one embodiment, the rotary drive is rotatably mounted on the first mounting bracket, the output end of the rotary drive is configured as a telescopic rod, the linkage mechanism includes a first link and a second link, the first end of the first link is fixedly disposed on the telescopic rod of the rotary drive, the second end of the first link is rotatably disposed on the first end of the second link, and the second end of the second link is fixedly disposed on the rotary shaft.

[0008] In one embodiment, the first connecting rod includes an intersecting first plate portion and a second plate portion, the first plate portion being connected to the upper surface of the second plate portion, the rotary drive member being spaced apart above the second plate portion, and the telescopic rod being fixedly connected to the first plate portion, with one end of the rotary drive member away from the telescopic rod being rotatably connected to the first mounting bracket.

[0009] In one embodiment, the second connecting rod includes a third plate portion and a mounting cylinder disposed on the third plate portion. The axis of the mounting cylinder intersects with the plate surface of the third plate portion. The mounting cylinder is fixedly sleeved on the rotating shaft. One end of the third plate portion away from the mounting cylinder is hinged to the lower side of the second plate portion.

[0010] In one embodiment, the first mounting bracket includes a first mounting plate, a second mounting plate, and a plurality of mounting posts, wherein the first mounting plate and the second mounting plate are arranged opposite to each other and spaced apart, and the mounting posts are connected between the first mounting plate and the second mounting plate; The end of the rotary drive component away from the telescopic rod is rotatably connected to one of the mounting columns, and / or the rotary shaft is mounted on the first mounting plate and the second mounting plate via bearings.

[0011] In one embodiment, the clamping module includes a clamping drive and at least two clamping members, at least one of the clamping members being connected to the output end of the clamping drive and being able to move closer to or further away from the other clamping member to clamp or release the turnover box.

[0012] In one embodiment, the clamping module further includes a second mounting bracket, the clamping drive is connected to the output end of the rotary drive through the second mounting bracket, and the clamping member is slidably connected to the second mounting bracket.

[0013] In one embodiment, the clamping drive is fixedly mounted on the second mounting bracket, and the output end of the clamping drive is configured as a telescopic rod, which is fixedly mounted on the clamping member.

[0014] In one embodiment, the clamping module further includes a slidingly engaged guide rail and a slider, the guide rail being disposed on the second mounting bracket and the slider being disposed on the clamping member.

[0015] In one embodiment, the rotating mechanism further includes a first mounting frame, the lifting drive is fixedly mounted on the frame, the output end of the lifting drive is configured as a telescopic rod, the telescopic rod of the lifting drive is fixedly mounted on the first mounting frame, and the rotating drive is mounted on the first mounting frame.

[0016] In one embodiment, the frame includes a third mounting bracket, the lifting drive is mounted on the third mounting bracket, and the rotating mechanism further includes a guide post and a linear bearing that are slidably engaged. The guide post is mounted on the first mounting bracket, and the linear bearing is mounted on the third mounting bracket. The linear bearing is slidably sleeved on the guide post.

[0017] The present invention also proposes a conveyor system comprising a first conveyor line and a second conveyor line, wherein the width of the first conveyor line is greater than the width of the second conveyor line, the length of the turnover box is less than that of the first conveyor line but greater than the width of the second conveyor line, and the width of the turnover box is less than the width of the second conveyor line; and the aforementioned connecting device, wherein the connecting device is used to clamp and rotate the turnover box from the first conveyor line and convey the rotated turnover box to the second conveyor line.

[0018] The technical solution of this invention, by setting a rotating mechanism including a lifting drive, a rotating drive, and a clamping module in the connecting device, enables the turnover box to be clamped and lifted away from the conveying surface during the transfer process, and then rotated in a direction according to the width of the downstream conveyor line or the process requirements, and finally lowered to release the turnover box, thereby realizing a smooth transition of the turnover box between conveyor lines of different widths. The structural design of the connecting device not only effectively solves the problem of passage interference caused by the fixed posture of the turnover box, avoiding operational failures such as jamming and blockage, but also allows for flexible adjustment of the orientation of the turnover box to adapt to the operational requirements of the downstream process for specific working sides. This solves the problem of passage interference or process adaptation caused by the fixed posture of the turnover box when it flows between different conveyor lines, thereby improving the compatibility, continuity, and automation level of the conveyor line system in multi-variety, flexible production scenarios. Attached Figure Description

[0019] 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A top view of an embodiment of the conveyor system provided by the present invention; Figure 2 This is a schematic diagram of a structure of an embodiment of the connecting device provided by the present invention; Figure 3 for Figure 2 Side view of the connecting device in the middle; Figure 4 for Figure 2 Exploded view of the rotating mechanism in the image; Figure 5 for Figure 2 A side view of a portion of the rotating mechanism in the image; Figure 6 for Figure 2 Another side view of the rotating mechanism in the middle; Figure 7 for Figure 4 A magnified view of a portion of point A in the middle.

[0021] Explanation of icon numbers: 100. Frame; 200. Rotating mechanism; 300. First conveyor line; 400. Second conveyor line; 500. Turnover box; 110. Third mounting frame; 210. Lifting drive component; 220. Rotating drive component; 230. Clamping module; 231. Clamping drive component; 232. Clamping component; 233. Second mounting frame; 234. Guide rail; 235. Slider; 240. First mounting frame; 241. First mounting plate; 242. Second mounting plate; 243. Mounting column; 250. Transmission structure; 251. Rotating shaft; 252. Linkage mechanism; 2521. First connecting rod; 25211. First plate section; 25212. Second plate section; 2522. Second connecting rod; 25221. Third plate section; 25222. Mounting cylinder; 260. Guide column; 270. Linear bearing.

[0022] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] This invention proposes a connection device.

[0027] Please see Figures 1 to 4 In one embodiment of the present invention, the connecting device is used to transfer turnover boxes 500 between at least two conveyor lines with different widths. The connecting device includes a frame 100 and a rotating mechanism 200. The rotating mechanism 200 includes a lifting drive 210, a rotating drive 220, and a clamping module 230. The lifting drive 210 is disposed on the frame 100. The rotating drive 220 is connected to the output end of the lifting drive 210 so as to be able to lift and lower relative to the frame 100. The clamping module 230 is able to clamp or release the turnover box 500. The clamping module 230 is connected to the output end of the rotating drive 220 so as to be able to rotate relative to the frame 100 and make the position of the turnover box 500 suitable for conveyor lines with different widths.

[0028] The connecting device of the present invention is used to transfer turnover boxes 500 between at least two conveyor lines with different widths. Through a composite motion mechanism integrating lifting, rotating and clamping functions, seamless connection and posture adaptation of turnover boxes 500 between different conveyor lines are achieved. Here, conveyor lines with different widths refer to adjacent conveyor lines having differences in their effective load-bearing width in the lateral direction (i.e., perpendicular to the material conveying direction), which may cause lateral interference of standard-sized turnover boxes 500 during cross-line transfer.

[0029] Specifically, the connecting device includes a frame 100 and a rotating mechanism 200 mounted on the frame 100. The frame 100 serves as the supporting foundation for the entire connecting device, is installed in the transition area between adjacent conveyor lines, and provides a stable mounting reference for each drive component. The rotating mechanism 200 includes a lifting drive 210, a rotating drive 220, and a gripping module 230. The lifting drive 210 (e.g., an electric push rod, hydraulic cylinder, or servo cylinder) is fixedly mounted on the frame 100, and its output end reciprocates linearly along the height direction of the frame 100, thereby driving the rotating drive 220, the gripping module 230, and the turnover box 500 gripped by the gripping module 230 to move up and down as a whole. A rotary drive component 220 (such as a servo motor with a reducer or a rotary cylinder) is connected to the output end of the lifting drive component 210, thus lifting and lowering synchronously with the lifting drive component 210. Simultaneously, the rotary drive component 220 has the ability to rotate around a reference axis, and its output end can output a controllable angle of rotational motion, allowing the turnover box 500 to adjust its orientation within the reference plane. A clamping module 230 (typically consisting of a pair of symmetrically arranged clamping arms and a clamping drive unit) is connected to the output end of the rotary drive component 220, capable of performing clamping or releasing actions on the turnover box 500 according to control commands. It is important to emphasize that both the rotational and lifting movements relative to the frame 100 are relative to the frame 100 as the reference frame, and the two degrees of freedom of motion are spatially decoupled, allowing for composite trajectory motion to be achieved through independent control.

[0030] By performing a complex motion of first clamping, then lifting, rotating to the target angle, and finally lowering and releasing, the connecting device can transform the turnover box 500 from a horizontally extra-wide posture to a vertically passable posture to adapt to the effective passable width of the downstream narrow conveyor line. At the same time, even if the conveyor line width is consistent, the turnover box 500 can be rotated to face different sides of the operating station to meet the requirements of subsequent assembly, inspection, or barcode scanning processes for specific working surfaces, effectively avoiding passage interference or process misalignment problems caused by the fixed posture of the box.

[0031] Specifically, in one scenario, the turnover box 500 moves to the rotating station where the connecting device is located. The two clamping members 232 are initially in a state with a large gap. The lifting drive 210 drives the rotating drive 220 and the clamping module 230 to descend together. Then, the action of the clamping drive 231 causes the two clamping members 232 to switch to a state with a smaller gap, so that the two clamping members 232 can clamp the turnover box 500. Next, the lifting drive 210 drives the rotating drive 220 and the clamping module 230 to rise together, so that the turnover box 500... 00 is suspended in the air; then, the rotary drive 220 drives the clamping module 230 to rotate around the reference axis, allowing the turnover box 500 to adjust its orientation within the reference plane; finally, the lifting drive 210 drives the rotary drive 220 and the clamping module 230 to descend to the initial height together, and the action of the clamping drive 231 causes the two clamping members 232 to return to a state with a larger gap to release the turnover box 500, thereby making the position of the turnover box 500 suitable for conveyor lines of different widths, or adapting the working surface of the turnover box 500 to the downstream process. The position suitable for conveyor lines of different widths not only refers to the adjustment of the placement direction of the turnover box 500 (such as the long side being parallel or perpendicular to the conveying direction), but also includes its centered positioning on the conveying surface to ensure stable passage.

[0032] In this way, the turnover box 500 can switch its conveying posture through the connecting device to adapt to the effective passage width of the downstream narrow conveyor line, effectively avoiding problems such as jamming and blockage caused by size mismatch, and improving the continuity and reliability of the conveyor line system. Alternatively, it can allow different sides of the turnover box 500 to face the operating station to meet the requirements of subsequent assembly, inspection, or barcode scanning processes for specific working surfaces, thereby solving the problems of passage interference or process adaptation caused by the fixed posture of the turnover box 500 when it flows between different conveyor lines. In addition, the turnover of the turnover box 500 through the connecting device also enhances the compatibility of the conveyor line system with multiple varieties and variable specifications of materials, improving the level of flexible production; and the entire transfer process is completed automatically without manual intervention or machine stoppage adjustment, ensuring cycle efficiency.

[0033] The technical solution of this invention, by setting a rotating mechanism 200 including a lifting drive component 210, a rotating drive component 220, and a clamping module 230 in the connecting device, enables the turnover box 500 to be clamped and lifted away from the conveying surface during the transfer process, and then rotated in a direction according to the width of the downstream conveyor line or the process requirements, and finally lowered and released the turnover box 500, thereby realizing the smooth transition of the turnover box 500 between conveyor lines of different widths. The structural design of the connecting device not only effectively solves the problem of passage interference caused by the fixed posture of the turnover box 500 and avoids operational failures such as jamming and blockage, but also allows for flexible adjustment of the orientation of the turnover box 500 to adapt to the operation requirements of the downstream process on specific working sides, thereby solving the problem of passage interference or process adaptation caused by the fixed posture of the turnover box 500 when it flows between different conveyor lines, and thus improving the compatibility, continuity and automation level of the conveyor system in multi-variety and flexible production scenarios.

[0034] In one implementation, please refer to Figures 2 to 4 The rotating mechanism 200 also includes a first mounting bracket 240 and a transmission structure 250. The rotating drive 220 is connected to the output end of the lifting drive 210 through the first mounting bracket 240. The transmission structure 250 includes a rotating shaft 251 and a linkage mechanism 252. The clamping module 230 is rotatably mounted on the first mounting bracket 240 through the rotating shaft 251. The output end of the rotating drive 220 drives the rotating shaft 251 to rotate through the linkage mechanism 252.

[0035] The first mounting bracket 240, serving as a transitional component connecting the lifting and rotating functions, is fixedly connected to the output end of the lifting drive 210 and rises and falls synchronously with it. This provides a movable mounting platform for the rotating drive 220 and the gripping module 230, ensuring that the entire rotating assembly can adjust its posture at a safe height away from the conveyor surface, avoiding interference with the conveyor components, side barriers, or other peripheral equipment on the conveyor line. The transmission structure 250 includes a rotating shaft 251 and a linkage mechanism 252, forming the power transmission path from the rotating drive 220 to the gripping module 230. The gripping module 230 is rotatably mounted on the first mounting bracket 240 via the rotating shaft 251, enabling it to achieve rotational freedom around a reference axis. The output end of the rotating drive 220 does not directly drive the rotating shaft 251, but indirectly drives it through the linkage mechanism 252. The linkage mechanism 252 converts the output motion (continuous rotation or oscillation) of the rotating drive 220 into the directional rotational motion required by the rotating shaft 251.

[0036] The rotating mechanism 200 uses a rotating drive component 220 to drive the linkage mechanism 252, which is an indirect transmission method that allows the rotating shaft 251 to rotate and drive the gripping module 230 to rotate. This allows the drive source to be placed far from the rotation center, optimizing the overall center of gravity distribution and spatial layout, and facilitating wiring, heat dissipation, and maintenance. At the same time, the linkage mechanism 252 has certain motion amplification and buffering characteristics, which helps to improve the smoothness and positioning accuracy of the rotation of the gripping module 230, while reducing the instantaneous torque requirements of the rotating drive component 220. More importantly, since the rotating shaft 251 is directly connected to the gripping module 230 and installed on the first mounting frame 240 that moves synchronously with the lifting system, the entire rotational motion always takes the frame 100 as the final reference frame, achieving effective decoupling of the two degrees of freedom of lifting and rotation in space. That is, the lifting process does not affect the stability of the rotation center of the rotating shaft 251, and the rotational motion does not introduce additional lifting displacement. The two can be independently controlled and coordinated to complete a compound trajectory.

[0037] In other embodiments, the transmission structure 250 may employ a gear transmission mechanism, with a driving gear mounted on the output shaft of the rotary drive 220 and a driven gear coaxially fixed on the rotary shaft 251, the driving gear and the driven gear meshing with each other; when the rotary drive 220 is working, it directly drives the rotary shaft 251 to rotate through the gear pair, thereby driving the clamping module 230 and the clamped turnover box 500 to rotate synchronously. The transmission structure 250 may also employ a synchronous belt or chain transmission mechanism, with a driving pulley (or sprocket) mounted on the output end of the rotary drive 220 and a driven pulley (or sprocket) mounted on the rotary shaft 251, the two connected by a synchronous belt (or chain).

[0038] In one implementation, please refer to Figures 2 to 5 , Figure 7 The rotary drive 220 is rotatably mounted on the first mounting bracket 240. The output end of the rotary drive 220 is configured as a telescopic rod. The linkage mechanism 252 includes a first link 2521 and a second link 2522. The first end of the first link 2521 is fixedly mounted on the telescopic rod of the rotary drive 220. The second end of the first link 2521 is rotatably mounted on the first end of the second link 2522. The second end of the second link 2522 is fixedly mounted on the rotating shaft 251.

[0039] The rotary drive component 220 is rotatably mounted on the first mounting bracket 240, and its output end is configured as a telescopic rod that can extend and retract along its own axis (e.g., a linear output electric actuator, hydraulic cylinder, or servo module with a lead screw). The reciprocating linear motion of this telescopic rod serves as the prime mover input, which is converted into the rotational motion of the rotating shaft 251 through the linkage mechanism 252 consisting of the first link 2521 and the second link 2522. Specifically, the first end of the first link 2521 is fixedly connected to the end of the telescopic rod of the rotary drive component 220 and performs linear reciprocating motion synchronously with the telescopic rod; the second end of the first link 2521 is rotatably connected to the first end of the second link 2522 through a pin or hinge structure, forming a movable joint that can swing relative to each other; the second end of the second link 2522 is fixedly sleeved or keyed to the outer periphery of the rotating shaft 251, thereby directly transmitting the swing output of the linkage mechanism 252 to the rotating shaft 251, driving it to rotate around its own axis. The axis of rotation 251 is substantially perpendicular to the conveying plane to ensure that the turnover box 500 completes the orientation adjustment in the horizontal plane.

[0040] By designing the rotary drive component 220 to be rotatably mounted, it can adaptively adjust its posture during the movement of the linkage mechanism 252 to match the movement of the linkage mechanism 252. Secondly, the telescopic rod, together with the double connecting rod, forms a crank and rocker mechanism, which can convert the linear stroke of the rotary drive component 220 into the angular rotation required by the rotating shaft 251, meeting the angular change requirements of the orientation adjustment of the turnover box 500. In addition, the transmission path of the rotational motion is integrated on the first mounting frame 240, which moves synchronously with the lifting system. Regardless of whether the rotating mechanism 200 is in a high or low position, the geometric relationship between the linkage mechanism 252 and the rotating shaft 251 remains unchanged, ensuring the consistency of the rotation angle and the repeatability of the positioning accuracy, and realizing the effective decoupling of the two degrees of freedom of lifting and rotation in space.

[0041] In other embodiments, the linkage mechanism 252 can also be a planar four-bar linkage 252, that is, the linkage mechanism 252 includes a frame 100 rod fixed to the first mounting bracket 240, an active crank composed of a telescopic rod of the rotary drive member 220, an intermediate connecting rod, and a second connecting rod 2522 serving as an output rocker arm, the end of which is fixed to the rotating shaft 251. The linkage mechanism 252 can also be a sliding rocker arm composite mechanism, in which a sliding member is connected to the end of the telescopic rod of the rotary drive member 220, and the sliding member moves linearly along a guide groove fixed to the first mounting bracket 240; the sliding member is hinged to the first connecting rod 2521 by a pin, and the first connecting rod 2521 then drives the second connecting rod 2522 to drive the rotating shaft 251.

[0042] In one implementation, please refer to Figure 4 and Figure 5The first connecting rod 2521 includes an intersecting first plate portion 25211 and a second plate portion 25212. The first plate portion 25211 is connected to the upper surface of the second plate portion 25212. The rotary drive member 220 is spaced above the second plate portion 25212, and the telescopic rod is fixedly connected to the first plate portion 25211. The end of the rotary drive member 220 away from the telescopic rod is rotatably connected to the first mounting bracket 240.

[0043] The first connecting rod 2521 adopts a bent or L-shaped plate structure composed of a first plate portion 25211 and a second plate portion 25212, wherein the first plate portion 25211 and the second plate portion 25212 are interconnected and intersect at a certain angle to form a stable rigid support. Intersection means having a non-zero angle to form a spatial force transmission path. Specifically, the first plate portion 25211 is connected to the upper surface of the second plate portion 25212 (e.g., by welding, integral molding, or bolting), such that the first plate portion 25211 extends upwards, while the second plate portion 25212 extends approximately horizontally. The upper surface refers to the side of the second plate portion 25212 facing away from the conveying surface, ensuring that the overall structure is at a safe height.

[0044] A rotary drive component 220 (such as a linear actuator or servo cylinder) is positioned above the second plate portion 25212 and spaced apart from it to avoid motion interference and to provide space for installation and heat dissipation. The telescopic rod end of the rotary drive component 220 is fixedly connected to the first plate portion 25211 (e.g., via a flange, pin, or threaded joint), thereby directly transmitting the linear output force of the telescopic rod to the first connecting rod 2521, driving the first connecting rod 2521 to swing around its hinge point with the second connecting rod 2522. The end of the rotary drive component 220 away from the telescopic rod is rotatably connected to the first mounting bracket 240 via a revolute joint (such as a pin, spherical bearing, or trunnion), so that the rotary drive component 220 is not rigidly fixed, but can swing slightly around its tail hinge point during extension and retraction, thereby adapting to the angle changes of the first connecting rod 2521 during movement. This effectively avoids lateral forces, jamming, or structural stress concentration caused by kinematic mismatch, thereby improving the smoothness, lifespan, and reliability of the transmission system.

[0045] In other embodiments, the first connecting rod 2521 can also be an integral rod-shaped connecting rod, which can be designed as a single integrally machined cylindrical, square tubular, or irregularly shaped cross-section rod. The rod has hinge holes or mounting flanges at both ends, one end is fixedly connected to the telescopic rod of the rotary drive 220 (e.g., via threads, pins, or quick-connect couplings), and the other end forms a rotating pair with the second connecting rod 2522.

[0046] In one implementation, please refer to Figure 4 and Figure 6The second connecting rod 2522 includes a third plate portion 25221 and a mounting cylinder 25222 disposed on the third plate portion 25221. The axis of the mounting cylinder 25222 intersects with the plate surface of the third plate portion 25221. The mounting cylinder 25222 is fixedly sleeved on the rotating shaft 251. One end of the third plate portion 25221 away from the mounting cylinder 25222 is hinged to the lower side of the second plate portion 25212.

[0047] The second connecting rod 2522 includes a third plate portion 25221 and a mounting cylinder 25222. The third plate portion 25221 is a rigid flat plate component, the main body of which is generally horizontal or inclined. The mounting cylinder 25222 is fixedly installed at one end of the third plate portion 25221 (e.g., by welding, integral molding, or bolt fastening), and its axis intersects with the plate surface of the third plate portion 25221. The mounting cylinder 25222 is fixedly sleeved on the rotating shaft 251, which can be achieved by key connection, pin connection, or interference fit, ensuring that there is no relative rotation between the mounting cylinder 25222 and the rotating shaft 251, thereby directly converting the swing motion of the second connecting rod 2522 into the rotational motion of the rotating shaft 251. When the second connecting rod 2522 is subjected to force and swings, the mounting cylinder 25222 drives the rotating shaft 251 to rotate synchronously, thereby driving the clamping module 230 connected to it to adjust the orientation of the turnover box 500.

[0048] Furthermore, the end of the third plate portion 25221 furthest from the mounting cylinder 25222 is rotatably connected to the lower side of the second plate portion 25212 of the first link 2521 via a hinge structure (such as a pin, a spherical bearing, etc.). This hinge point forms a movable joint between the first link 2521 and the second link 2522, allowing them to swing relative to each other during movement. Since the hinge position is located on the lower side of the second plate portion 25212 (i.e., the side facing the conveying surface), the overall linkage mechanism 252 is arranged in layers in the vertical direction. That is, the rotary drive member 220 is located at the top, the first link 2521 is in the middle, and the second link 2522 is located at the bottom, effectively utilizing the space in the vertical direction and effectively avoiding interference between the various components; and the layered spatial layout improves the structural compactness of the rotary mechanism 200.

[0049] In other embodiments, the second link 2522 may also include a third plate portion 25221 and a pin, the pin being inserted into the rotating shaft 251 in place of the mounting sleeve 25222.

[0050] In one implementation, please refer to Figures 3 to 6 The first mounting bracket 240 includes a first mounting plate 241, a second mounting plate 242 and a plurality of mounting posts 243. The first mounting plate 241 and the second mounting plate 242 are arranged opposite to each other and spaced apart. The mounting posts 243 are connected between the first mounting plate 241 and the second mounting plate 242. The end of the rotation drive member 220 away from the telescopic rod is rotatably connected to one of the mounting posts 243.

[0051] The first mounting frame 240 adopts a frame structure design, including a first mounting plate 241, a second mounting plate 242, and multiple mounting posts 243 connecting the two. The first mounting plate 241 and the second mounting plate 242 are positioned opposite each other and spaced apart, forming two parallel support planes. The rotation drive 220 and the transmission mechanism are housed within the space formed by the first mounting plate 241 and the second mounting plate 242. The first mounting plate 241 is located on the side of the second mounting plate 242 away from the conveying surface. The lifting drive 210 drives and connects to the first mounting plate 241, and the clamping module 230 is mounted on the second mounting plate 242. Multiple mounting posts 243 are fixedly connected between the two mounting plates (e.g., through welding, threaded fastening, or integral machining), serving not only a connecting and positioning function but also enhancing the overall structural rigidity and torsional resistance, enabling it to stably bear the dynamic loads generated during lifting, rotation, and clamping. The end of the rotary drive component 220 away from the telescopic rod is rotatably connected to one of the mounting posts 243 via a rotating pair (such as a pin, spherical bearing, or trunnion), so that the rotary drive component 220 swings slightly around the mounting post 243 during the telescopic process, thereby adapting to the posture changes caused by the movement of the first link 2521, effectively avoiding lateral force or structural stress concentration caused by forced constraint, and improving transmission smoothness and service life.

[0052] In one embodiment, the rotating shaft 251 is mounted on the first mounting plate 241 and the second mounting plate 242 via bearings.

[0053] The rotating shaft 251 is rotatably supported on the first mounting bracket 240. One end of the rotating shaft 251 is mounted on the first mounting plate 241 via a bearing (such as a deep groove ball bearing, a mounted bearing, or a flange bearing), and the body of the rotating shaft 251 passes through the second mounting plate 242 via a bearing (such as a deep groove ball bearing, a mounted bearing, or a flange bearing). This double-support structure ensures that the rotating shaft 251 maintains good rotational accuracy and operational stability even when subjected to off-center loads from the clamping module 230. The distance between the first mounting plate 241 and the second mounting plate 242 is fixed, and the axial position of the rotating shaft 251 remains unchanged throughout the entire lifting stroke, thereby ensuring the consistency of the movement of the linkage mechanism 252 and achieving high repeatability of the rotation angle.

[0054] In one implementation, please refer to Figures 2 to 4 The clamping module 230 includes a clamping drive 231 and at least two clamping members 232. At least one clamping member 232 is connected to the output end of the clamping drive 231 and can move closer to or further away from the other clamping member 232 to clamp or release the turnover box 500.

[0055] The gripping module 230 is used to reliably grip and release the turnover box 500. It mainly includes a gripping drive component 231 and at least two gripping components 232. At least one gripping component 232 is connected to the output end of the gripping drive component 231 and can move closer to or further away from another gripping component 232 in a lateral direction perpendicular to the conveying direction under the drive of the gripping drive component 231, thereby forming an adjustable gripping distance. Alternatively, at least one gripping component 232 may be fixed relative to the first mounting frame 240, while at least another gripping component 232 may be movable relative to the first mounting frame 240 to move closer to or further away from the fixed gripping component 232; or all gripping components 232 may be movable relative to the first mounting frame 240, and the opposing gripping components 232 may move closer to or further away from each other.

[0056] When the clamping drive 231 (e.g., a cylinder, electric push rod, or servo slide) is activated, its output end drives the connected clamping member 232 to move towards the center, causing at least one clamping member 232 to move closer to the side wall of the turnover box 500 and clamp it by friction or a limiting structure; conversely, when the clamping drive 231 moves in the opposite direction, the clamping member 232 opens outward and releases the turnover box 500.

[0057] Furthermore, the two clamping components 232 are symmetrically arranged on both sides of the conveying path of the turnover box 500 to ensure balanced clamping force and prevent the box from tilting or slipping. The inner surface of the clamping component 232 may be provided with a buffer pad, guide ramp, groove or positioning protrusion to accommodate turnover boxes 500 of different sizes and improve clamping stability. In addition, the clamping drive component 231 may be an electric actuator with position feedback to realize closed-loop control of clamping force or clamping position, further enhancing the flexibility and compatibility of the system.

[0058] In one implementation, please refer to Figure 4 The clamping module 230 also includes a second mounting bracket 233. The clamping drive 231 is connected to the output end of the rotary drive 220 through the second mounting bracket 233, and the clamping member 232 is slidably connected to the second mounting bracket 233.

[0059] The clamping module 230 also includes a second mounting bracket 233, which provides a stable and reliable mounting and guiding foundation for the clamping drive component 231 and the clamping components 232. The clamping drive component 231 is connected to the output end (i.e., the rotating shaft 251) of the rotary drive component 220 through the second mounting bracket 233, so that the entire clamping module 230 can rotate synchronously with the rotating shaft 251, thereby achieving orientation adjustment when the turnover box 500 is clamped. At the same time, each clamping component 232 is slidably connected to the second mounting bracket 233, and is usually provided with a guide structure (such as a linear guide rail 234, a chute, or a guide rod) in the transverse direction (i.e., perpendicular to the material conveying direction) to ensure that the clamping components 232 move smoothly and without swaying under the action of the clamping drive component 231 in a predetermined direction. The clamping drive component 231 (e.g., cylinder, electric push rod or servo slide) is fixedly mounted on the second mounting bracket 233 and directly or indirectly drives at least one clamping component 232 with its output end; another clamping component 232 can be fixed to the second mounting bracket 233 or symmetrically driven by the same rotary drive component 220 to achieve bidirectional synchronous opening and closing.

[0060] The second mounting bracket 233 can adopt a rigid plate-like or frame-like structure, with one end fixed to the rotating shaft 251 (e.g., via a flange, key connection, or bolt fastening), and the other part extending to form a platform for mounting the clamping drive component 231 and the guide mechanism. By integrating the clamping drive component 231 and the clamping component 232 onto the same mounting bracket, not only is the transmission chain simplified, but the motion coordination between the clamping action and the rotation action is also ensured. That is, regardless of the rotation angle of the clamping module 230, the opening and closing direction of the clamping component 232 is always consistent with that of the turnover box 500, avoiding the clamping direction confusion caused by rotation.

[0061] In other embodiments, the second mounting bracket 233 can also be designed as a split structure, for example, consisting of left and right side plates and a central connecting beam. The clamping drive component 231 is mounted on the central beam, and the clamping components 232 are slidably connected to the left and right side plates, respectively. This split structure supports modular replacement of the side plates to adjust the clamping range, making it suitable for flexible production lines that produce 500 multi-specification turnover boxes on a single line.

[0062] In one implementation, please refer to Figure 4 The clamping drive component 231 is fixedly mounted on the second mounting bracket 233. The output end of the clamping drive component 231 is configured as a telescopic rod, and the telescopic rod of the clamping drive component 231 is fixedly mounted on the clamping component 232.

[0063] The clamping drive component 231 is fixedly mounted on the second mounting bracket 233. Its body is rigidly connected to the main structure of the second mounting bracket 233 by bolts, clips, or welding to ensure that no displacement or vibration occurs during operation. The output end of the clamping drive component 231 is configured as a telescopic rod (e.g., a cylinder piston rod, an electric push rod, or a slide of a servo module) that can reciprocate in a linear direction. This telescopic rod serves as a direct power output component, and its end is fixedly connected to at least one clamping component 232. When the clamping drive component 231 is activated, the telescopic rod extends or retracts, directly driving the connected clamping component 232 to slide in a preset direction (i.e., perpendicular to the conveying direction). Another clamping component 232 can be symmetrically arranged and linked by the same clamping drive component 231 through an intermediate connector, or driven by another clamping drive component 231, or fixed to the second mounting bracket 233 as a stationary side, thereby achieving relative proximity or distance between the two clamping components 232. The entire clamping module 230 is integrated on the second mounting bracket 233, which is fixedly connected to the rotating shaft 251. Therefore, the clamping module 230 can rotate synchronously with the rotating mechanism 200 as a whole. No matter which orientation the turnover box 500 is rotated to, the extension and retraction direction of the clamping drive component 231 is always consistent with that of the turnover box 500.

[0064] In other embodiments, the clamping module 230 can also adopt a symmetrical gear and rack drive method. A central gear is fixedly installed on the second mounting bracket 233, and the clamping drive component 231 (such as a rotary motor) drives the gear to rotate. The bottom of the two clamping components 232 integrates racks that mesh with the central gear and slide along the parallel guide rail 234. The forward and reverse rotation of the gear can drive the two clamping components 232 to open and close synchronously.

[0065] In one implementation, please refer to Figure 4 The clamping module 230 also includes a sliding guide rail 234 and a slider 235. The guide rail 234 is located on the second mounting bracket 233, and the slider 235 is located on the clamping member 232.

[0066] The clamping module 230 is also equipped with a sliding guide rail 234 and a slider 235 assembly. The guide rail 234 is fixedly mounted on the second mounting frame 233 and extends along the preset movement direction of the clamping member 232 (perpendicular to the material conveying direction). The guide rail 234 can be fixed to the side or bottom of the second mounting frame 233. The length of the guide rail 234 is determined according to the clamping stroke, and limit blocks can be provided at both ends to prevent the slider 235 from disengaging. The slider 235 is fixedly mounted on the clamping member 232 and forms a sliding pair with the guide rail 234. When the telescopic rod of the clamping drive member 231 drives the clamping member 232 to move, the slider 235 slides smoothly along the guide rail 234, effectively constraining the degree of freedom of the clamping member 232 and ensuring that it moves only along a predetermined straight path. This avoids skewing, warping, or jamming during clamping or releasing, improving the overall dynamic performance and repeatability of the clamping module 230.

[0067] In other embodiments, the clamping module 230 may also be mounted on one or two parallel precision guide rods fixedly on the second mounting bracket 233, and the clamping member 232 may be mounted on the guide rods by a linear bearing 270, an oil-impregnated copper sleeve or an engineering plastic bushing to achieve low-friction sliding.

[0068] In one implementation, please refer to Figures 2 to 4 The rotating mechanism 200 also includes a first mounting frame 240, a lifting drive 210 fixedly mounted on the frame 100, the output end of the lifting drive 210 configured as a telescopic rod, the telescopic rod of the lifting drive 210 fixedly mounted on the first mounting frame 240, and the rotating drive 220 mounted on the first mounting frame 240.

[0069] The rotating mechanism 200 also includes a first mounting frame 240, which serves as an integrated platform for the rotating drive component 220 and subsequent transmission components. The lifting drive component 210 is fixedly mounted on the frame 100 (e.g., rigidly connected by bolts or welding), and its body remains stationary. The output end of the lifting drive component 210 is configured as a telescopic rod (such as a cylinder piston rod, electric push rod, or slide of a servo cylinder) that can reciprocate in the vertical direction. The end of the telescopic rod is fixedly connected to the first mounting frame 240 (e.g., through a flange, pin, or threaded joint), thereby directly converting the linear output of the lifting drive component 210 into the overall lifting motion of the first mounting frame 240. The rotary drive 220 is mounted on the first mounting frame 240. When the lifting drive 210 is activated, the entire first mounting frame 240, together with the rotary drive 220, the transmission structure 250 and the clamping module 230 on it, rises or falls synchronously, so that the turnover box 500 can adjust its posture at a safe height away from the conveying surface, effectively avoiding interference with the conveying components, side baffles or other peripheral equipment of the conveying line.

[0070] In other embodiments, the lifting drive 210 may also employ a servo motor in conjunction with a ball screw pair. The ball screw is vertically mounted on the frame 100, and the first mounting bracket 240 engages with the ball screw via a nut seat. When the motor rotates, the nut drives the first mounting bracket 240 to move up and down along the ball screw axis.

[0071] In one implementation, please refer to Figures 2 to 4 The frame 100 includes a third mounting bracket 110, and the lifting drive component 210 is mounted on the third mounting bracket 110. The rotating mechanism 200 also includes a guide column 260 and a linear bearing 270 that are slidably fitted. The guide column 260 is mounted on the first mounting bracket 240, and the linear bearing 270 is mounted on the third mounting bracket 110. The linear bearing 270 is slidably sleeved on the guide column 260.

[0072] The frame 100 includes a third mounting bracket 110 on which the lifting drive 210 is mounted. The third mounting bracket 110, as part of the frame 100, is typically fixed in the transition area between adjacent conveyor lines, providing a stable mounting base for the lifting drive 210. Meanwhile, the rotating mechanism 200 also includes a guide assembly consisting of a slidingly fitted guide post 260 and a linear bearing 270. The guide post 260 is fixedly mounted on the first mounting bracket 240 (e.g., extending vertically via threaded fastening or welding), and its axis is parallel to the extension / retraction direction of the lifting drive 210 (typically vertical) to ensure consistent movement. The linear bearing 270 is mounted on the third mounting bracket 110 and slidably fitted around the outer circumference of the guide post 260. The inner ring of the linear bearing 270 forms a clearance fit or preload fit with the outer circle of the guide post 260, allowing for low-resistance axial sliding. When the telescopic rod of the lifting drive component 210 drives the first mounting frame 240 to move up and down, the guide column 260 slides smoothly along the inner hole of the linear bearing 270, forming a high-precision linear guide pair. Thus, the guide structure formed by the guide column 260 and the linear bearing 270 can effectively limit the lateral swaying, twisting, or tilting of the first mounting frame 240 during the lifting process, allowing it to only move vertically. Under conditions of clamping eccentric loads or system vibration, the guide column 260 and the linear bearing 270 can withstand radial loads, protecting the lifting drive component 210 from damage caused by non-axial forces. Through the precisely matched linear motion pair, the height of the endpoint position is ensured to be consistent each time the lifting is completed, providing a reliable reference for subsequent rotation and release actions.

[0073] In other embodiments, the guide post 260 may be fixed to the third mounting bracket 110, and the linear bearing 270 may be disposed on the first mounting bracket 240.

[0074] The present invention also proposes a conveyor system, which includes a first conveyor line 300 and a second conveyor line 400, as well as a connecting device. The specific structure of the connecting device is as described in the above embodiments. Since the conveyor system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0075] Please refer to Figure 1 and Figure 2 The width of the first conveyor line 300 is greater than the width of the second conveyor line 400. The length of the turnover box 500 is less than that of the first conveyor line 300 but greater than that of the second conveyor line 400. The width of the turnover box 500 is less than that of the second conveyor line 400. The connecting device is used to clamp and rotate the turnover box 500 from the first conveyor line 300 and transport the rotated turnover box 500 to the second conveyor line 400.

[0076] The conveyor system includes a first conveyor line 300 and a second conveyor line 400 with different widths, and a connecting device between them. The first conveyor line 300 and the second conveyor line 400 are arranged sequentially along the conveying direction of the turnover box 500, and their effective carrying widths (i.e., the passage space perpendicular to the conveying direction) differ. The width of the first conveyor line 300 is greater than that of the second conveyor line 400. The first conveyor line 300 is a wide-width line and can be used in main logistics channels, buffer areas, or general feeding sections to accommodate large-sized turnover boxes 500 and be compatible with various sizes of turnover boxes 500 or meet high-stability conveying requirements. The second conveyor line 400 is a narrow-width line and can be used in space-constrained areas (such as inside assembly stations, entrances to testing equipment, robot operation areas, etc.) to meet compact layout or specific process requirements or match downstream equipment interfaces. The turnover box 500 is rectangular with varying lengths and widths. The length of the turnover box 500 is greater than the width of the second conveyor line 400. If it maintains its original orientation on the first conveyor line 300 (usually with its length direction perpendicular to the conveying direction) and directly enters the second conveyor line 400, the sides of the turnover box 500 will protrude from the conveying surface, resulting in unstable support and making it prone to tilting, jamming, or even falling. However, the width of the turnover box 500 is less than the width of the second conveyor line 400. By simply rotating it 90° around its vertical axis so that the width direction of the turnover box 500 is perpendicular to the conveying direction, the turnover box 500 can fall completely within the effective load-bearing range of the second conveyor line 400, achieving safe and stable transmission.

[0077] The connecting device is positioned at the junction of the first conveyor line 300 and the second conveyor line 400. It receives the turnover box 500 from the first conveyor line 300 and automatically performs clamping, lifting, directional rotation, and release operations on the turnover box 500 without interrupting the logistics cycle. Specifically, the connecting device first clamps the turnover box 500 from the first conveyor line 300, then lifts it to a safe height to detach it from the conveyor surface. In this suspended state, the connecting device drives the turnover box 500 to rotate around its vertical axis by a predetermined angle according to the width requirements of the second conveyor line 400 or the orientation requirements of the downstream process, changing its long side from horizontal to vertical, or oriented a specific side towards the workstation. Finally, the connecting device precisely lowers and releases the adjusted turnover box 500, outputting it to the starting position of the second conveyor line 400 for a smooth transition. The transport of the turnover box 500 from the first conveyor line 300 to the second conveyor line 400 can be achieved by having a conveyor body in the connecting area, with the conveyor body respectively docking with the first conveyor line 300 and the second conveyor line 400; or the end of the first conveyor line 300 and the beginning of the second conveyor line 400 can extend into the connecting area. Understandably, the end of the first conveyor line 300 extends into the connecting area so that the rotating mechanism 200 can grab and lift the turnover box 500. When the turnover box 500 is disengaged from the end of the first conveyor line 300, the end of the first conveyor line 300 retracts and leaves the connecting area, while the beginning of the second conveyor line 400 extends into the connecting area. After directional rotation, the turnover box 500 is released to the beginning of the second conveyor line 400, and the turnover box 500 can continue to be transported to the downstream process through the second conveyor line 400.

[0078] By integrating a rotating mechanism 200 with lifting, rotating, and clamping functions, the conveyor system effectively solves the problems of cross-line interference or process misalignment caused by the fixed posture of the turnover box 500. Whether facing conveyor paths with abrupt changes in width or multi-station scenarios requiring operation on different sides of the turnover box 500, the conveyor system can achieve fully automatic and highly reliable posture-adaptive transfer, thereby improving the continuity, flexibility, and automation of the overall logistics system. Furthermore, due to the modular design of the connecting device, it can be flexibly deployed between any adjacent conveyor lines, enhancing the flexibility and scalability of the conveyor system.

[0079] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A connecting device, characterized in that, For transferring turnover boxes between at least two conveyor lines with different widths, the connecting device includes a frame and a rotating mechanism, the rotating mechanism comprising: A lifting drive component is mounted on the frame; A rotary drive component, connected to the output end of the lifting drive component, is capable of lifting relative to the frame; and A clamping module is capable of clamping or releasing turnover boxes. The clamping module is connected to the output end of the rotary drive component so as to rotate relative to the frame and adapt the position of the turnover boxes to the conveyor lines of different widths.

2. The connecting device as described in claim 1, characterized in that, The rotating mechanism further includes a first mounting bracket and a transmission structure. The rotating drive component is connected to the output end of the lifting drive component through the first mounting bracket. The transmission structure includes a rotating shaft and a linkage mechanism. The clamping module is rotatably mounted on the first mounting bracket through the rotating shaft. The output end of the rotating drive component drives the rotating shaft to rotate through the linkage mechanism.

3. The connecting device as described in claim 2, characterized in that, The rotary drive component is rotatably mounted on the first mounting bracket. The output end of the rotary drive component is configured as a telescopic rod. The linkage mechanism includes a first link and a second link. The first end of the first link is fixedly disposed on the telescopic rod of the rotary drive component. The second end of the first link is rotatably disposed on the first end of the second link. The second end of the second link is fixedly disposed on the rotary shaft.

4. The connecting device as described in claim 3, characterized in that, The first connecting rod includes an intersecting first plate portion and a second plate portion. The first plate portion is connected to the upper surface of the second plate portion. The rotary drive member is spaced above the second plate portion, and the telescopic rod is fixedly connected to the first plate portion. The end of the rotary drive member away from the telescopic rod is rotatably connected to the first mounting bracket.

5. The connecting device as described in claim 4, characterized in that, The second connecting rod includes a third plate and a mounting cylinder disposed on the third plate. The axis of the mounting cylinder intersects with the surface of the third plate. The mounting cylinder is fixedly sleeved on the rotating shaft. One end of the third plate away from the mounting cylinder is hinged to the lower side of the second plate.

6. The connecting device as described in claim 3, characterized in that, The first mounting bracket includes a first mounting plate, a second mounting plate, and a plurality of mounting posts. The first mounting plate and the second mounting plate are arranged opposite to each other and spaced apart. The mounting posts are connected between the first mounting plate and the second mounting plate. The end of the rotary drive component away from the telescopic rod is rotatably connected to one of the mounting columns, and / or the rotary shaft is mounted on the first mounting plate and the second mounting plate via bearings.

7. The connecting device as described in claim 1, characterized in that, The clamping module includes a clamping drive and at least two clamping members. At least one of the clamping members is connected to the output end of the clamping drive and can move closer to or further away from the other clamping member to clamp or release the turnover box.

8. The connecting device as described in claim 7, characterized in that, The clamping module further includes a second mounting bracket, and the clamping drive is connected to the output end of the rotary drive through the second mounting bracket. The clamping component is slidably connected to the second mounting bracket.

9. The connecting device as described in claim 8, characterized in that, The clamping drive is fixedly mounted on the second mounting bracket, and the output end of the clamping drive is configured as a telescopic rod, which is fixedly mounted on the clamping component. And / or, the clamping module further includes a slidingly engaged guide rail and a slider, the guide rail being disposed on the second mounting bracket and the slider being disposed on the clamping member.

10. The connecting device as claimed in claim 1, characterized in that, The rotating mechanism further includes a first mounting frame, the lifting drive component is fixedly mounted on the frame, the output end of the lifting drive component is configured as a telescopic rod, the telescopic rod of the lifting drive component is fixedly mounted on the first mounting frame, and the rotating drive component is mounted on the first mounting frame.

11. The connecting device as described in claim 10, characterized in that, The frame includes a third mounting bracket, the lifting drive component is mounted on the third mounting bracket, and the rotating mechanism further includes a guide column and a linear bearing that are slidably engaged. The guide column is mounted on the first mounting bracket, and the linear bearing is mounted on the third mounting bracket. The linear bearing is slidably sleeved on the guide column.

12. A conveyor line system, characterized in that, include: A first conveyor line and a second conveyor line, wherein the width of the first conveyor line is greater than the width of the second conveyor line, the length of the turnover box is less than that of the first conveyor line but greater than the width of the second conveyor line, and the width of the turnover box is less than the width of the second conveyor line; as well as The connecting device as described in any one of claims 1 to 11, the connecting device being used to clamp and rotate a turnover box from the first conveyor line, and to convey the rotated turnover box to the second conveyor line.

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