Lifting mechanism and conveying device

Abstract

The present invention provides a lifting mechanism and a conveying device. The lifting mechanism includes a lifting platform. The lifting mechanism also includes a first driving member, a rotating shaft and a connecting rod assembly. The first end of the connecting rod assembly is fixedly connected to the rotating shaft, and the second end of the connecting rod assembly is hinged to the lifting platform. The first driving member is drivingly connected to the rotating shaft. The rotating shaft is rotatably arranged along a first rotation direction and a second rotation direction under the drive of the first driving member, so that when the rotating shaft rotates along the first rotation direction, the connecting rod assembly drives the lifting platform to rise, and when the rotating shaft rotates along the second rotation direction, the connecting rod assembly drives the lifting platform to descend. The first rotation direction is opposite to the second rotation direction. The lifting mechanism of the present invention solves the problem of unstable lifting of the lifting platform of the lifting mechanism in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent equipment, and in particular to a lifting mechanism and a conveying device. Background Art

[0002] For production factories, automated assembly lines are indispensable. For an automated assembly line, the line body is divided into two layers, the upper layer is for working, and the lower layer is for empty board reflow. In this way, a lifting mechanism is needed in front and behind the line body to transport reflow tooling boards, etc. The lifting platform of the lifting mechanism moves in the vertical direction to transfer the reflow tooling boards, etc. between the upper and lower layer line bodies.

[0003] However, the lifting platform of the lifting mechanism in the prior art is driven by a chain to move in the vertical direction. Due to the vibration caused by the chain, the up and down lifting process is not smooth and the transportation time is long. Summary of the invention

[0004] The main purpose of the present invention is to provide a lifting mechanism and a conveying device to solve the problem of unstable lifting of the lifting platform of the lifting mechanism in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a lifting mechanism is provided, including a lifting platform, the lifting mechanism also including a first driving member, a rotating shaft and a connecting rod assembly, the first end of the connecting rod assembly is fixedly connected to the rotating shaft, and the second end of the connecting rod assembly is hinged to the lifting platform; the first driving member is drivingly connected to the rotating shaft, and the rotating shaft is rotatably arranged along a first rotation direction and a second rotation direction respectively under the drive of the first driving member, so that when the rotating shaft rotates along the first rotation direction, the connecting rod assembly drives the lifting platform to rise, and when the rotating shaft rotates along the second rotation direction, the connecting rod assembly drives the lifting platform to descend; wherein the first rotation direction is opposite to the second rotation direction.

[0006] Furthermore, the connecting rod assembly includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is fixedly connected to the rotating shaft, the second end of the first connecting rod is hinged to the first end of the second connecting rod, and the second end of the second connecting rod is hinged to the lifting platform.

[0007] Furthermore, the lifting mechanism includes at least two connecting rod assemblies, and the at least two connecting rod assemblies are arranged in sequence along the extension direction of the rotating shaft.

[0008] Furthermore, the lifting mechanism also includes a first conveyor line, which is arranged on the lifting platform; the lifting mechanism also includes a second driving member and a transmission assembly, and the second driving member drives the first conveyor line to convey the workpiece along a first preset direction and a second preset direction through the transmission assembly, and the first preset direction and the second preset direction are opposite.

[0009] Furthermore, the first conveyor line includes two conveying parts arranged at intervals, each conveying part includes a first conveying chain, a first driving wheel and a first driven wheel, the first conveying chain is sleeved on the first driving wheel and the first driven wheel; the transmission assembly includes a connecting shaft, a second conveying chain, a second driving wheel and a second driven wheel, the second driving member is drivingly connected to the second driving wheel to drive the second driving wheel to rotate; the second conveying chain is sleeved on the second driving wheel and the second driven wheel, the second driven wheel is fixedly arranged on the connecting shaft and is located between the first end and the second end of the connecting shaft; the first end of the connecting shaft is fixedly connected to a first driving wheel, and the second end of the connecting shaft is fixedly connected to another second driving wheel.

[0010] Furthermore, the first end of the first conveyor line is used to dock with an external conveyor line, and a detection component is provided at the first end of the first conveyor line, so that when the detection component detects that the workpiece flows into the first conveyor line, the second driving component is started to make the first conveyor line convey the workpiece along a first preset direction; and when the detection component detects that the workpiece flows out of the first conveyor line, the second driving component stops running.

[0011] Furthermore, the first conveyor line has a first end and a second end arranged in sequence along its conveying direction, and the first end is used to connect with an external conveyor line; the second end of the first conveyor line is provided with a mounting beam, and the lifting mechanism also includes: an induction switch, which is arranged on the mounting beam, and when the induction switch detects that the workpiece runs to a preset position and flows out of a preset position, the first driving member is started; and / or, a buffer block, which is arranged on the mounting beam, and the buffer block is used to stop the workpiece at a preset position.

[0012] Furthermore, the lifting mechanism also includes a first fixed plate, a second fixed plate, a guide column and a guide portion, the first driving member is arranged on the first fixed plate, and the second fixed plate is located above the first fixed plate; the guide column extends in a vertical direction, the first end of the guide column is connected to the first fixed plate, and the second end of the guide column is connected to the second fixed plate; the guide portion is fixedly connected to the lifting platform, the guide portion is sleeved on the guide column and performs reciprocating linear motion along the guide column.

[0013] Further, the lifting mechanism also includes: a first limiting structure, which is arranged between the first fixed plate and the lifting platform and is used to limit the lifting platform at a first extreme position; the first limiting structure includes a first fixed portion and a first buffer pad arranged on the first fixed portion, and the first buffer pad is arranged on a side of the first fixed portion close to the lifting platform; and / or, a second limiting structure, which is arranged between the second fixed plate and the lifting platform and is used to limit the lifting platform at a second extreme position; the second limiting structure includes a second fixed portion and a second buffer pad arranged on the second fixed portion, and the second buffer pad is arranged on a side of the second fixed portion close to the lifting platform.

[0014] According to another aspect of the present invention, a conveying device is provided, including a lifting mechanism, a first conveying line and a second conveying line. The lifting mechanism is the above-mentioned lifting mechanism, and the lifting platform of the lifting mechanism performs reciprocating linear motion in the vertical direction to respectively connect with the first conveying line and the second conveying line.

[0015] By applying the technical solution of the present invention, the lifting mechanism includes a lifting platform, a first driving member, a rotating shaft and a connecting rod assembly. The first driving member drives the rotating shaft to rotate along the first rotation direction, and the rotating shaft drives the connecting rod assembly to move, thereby driving the lifting platform to rise; the first driving member drives the rotating shaft to rotate along the second rotation direction, and the rotating shaft drives the connecting rod assembly to move, thereby driving the lifting platform to descend. Therefore, the lifting mechanism uses the connecting rod assembly to replace the chain transmission, and controls the lifting of the lifting platform by driving the rotating shaft and the connecting rod assembly through the first driving member, so that the lifting of the lifting platform is more stable, the operation is smoother, and it is not easy to get stuck, thereby solving the problem of unstable lifting of the lifting platform of the lifting mechanism in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A front view showing a lifting platform of the lifting mechanism according to the present invention in the highest position;

[0018] Figure 2 A side view showing a lifting platform of the lifting mechanism according to the present invention in the highest position;

[0019] Figure 3 A schematic diagram showing an angle of a lifting platform of the lifting mechanism according to the present invention being in the highest position;

[0020] Figure 4 A schematic diagram showing another angle of the lifting platform of the lifting mechanism according to the present invention being in the highest position;

[0021] Figure 5 It shows a top view of the lifting mechanism according to the present invention after the second fixing plate is hidden;

[0022] Figure 6 A side view showing a lifting platform of the lifting mechanism according to the present invention in a lowest position;

[0023] Figure 7 An axonometric view showing a lifting platform of the lifting mechanism according to the present invention in the lowest position;

[0024] Figure 8A front view showing a lifting platform of the lifting mechanism according to the present invention in a lowest position;

[0025] Fig. 9 A top view of an embodiment of a lifting mechanism according to the present invention is shown;

[0026] Fig.10 A side view of a first conveying line, a transmission assembly and a lifting platform of a lifting mechanism according to the present invention is shown;

[0027] Fig.11 An axonometric view of a first conveying line, a transmission assembly and a lifting platform of a lifting mechanism according to the present invention is shown;

[0028] Fig.12 A front view of a first conveying line, a transmission assembly and a lifting platform of a lifting mechanism according to the present invention is shown;

[0029] Fig.13 A top view of a first conveying line, a transmission assembly and a lifting platform of the lifting mechanism according to the present invention is shown.

[0030] The above drawings include the following reference numerals:

[0031] 1. Lifting mechanism; 10. Lifting platform; 20. First driving member; 30. Rotating shaft; 40. Connecting rod assembly; 41. First connecting rod; 42. Second connecting rod; 50. First conveying line; 51. Conveying part; 511. First conveying chain; 512. First driving wheel; 513. First driven wheel; 52. Detection component; 53. Mounting beam; 60. Second driving member; 70. Transmission assembly; 71. Connecting shaft; 72. Second conveying chain; 73. Second driving wheel; 74. Second driven wheel; 80. Induction switch; 90. Buffer block; 100. First fixed plate; 110. Second fixed plate; 120. Guide column; 130. Guide part; 141. First fixed part; 142. First buffer pad; 151. Second fixed part; 152. Second buffer pad. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] The present invention provides a lifting mechanism, please refer to Figures 1 to 13 , includes a lifting platform 10, and the lifting mechanism also includes a first driving member 20, a rotating shaft 30 and a connecting rod assembly 40, the first end of the connecting rod assembly 40 is fixedly connected to the rotating shaft 30, and the second end of the connecting rod assembly 40 is hinged to the lifting platform 10; the first driving member 20 is drivingly connected to the rotating shaft 30, and the rotating shaft 30 is rotatably arranged along the first rotation direction and the second rotation direction respectively under the drive of the first driving member 20, so that when the rotating shaft 30 rotates along the first rotation direction, the connecting rod assembly 40 drives the lifting platform 10 to rise, and when the rotating shaft 30 rotates along the second rotation direction, the connecting rod assembly 40 drives the lifting platform 10 to descend; wherein the first rotation direction is opposite to the second rotation direction.

[0036] The lifting mechanism of the present invention includes a lifting platform 10, a first driving member 20, a rotating shaft 30 and a connecting rod assembly 40. The first driving member 20 drives the rotating shaft 30 to rotate along a first rotation direction, and the rotating shaft 30 drives the connecting rod assembly 40 to move, thereby driving the lifting platform 10 to rise; the first driving member 20 drives the rotating shaft 30 to rotate along a second rotation direction, and the rotating shaft 30 drives the connecting rod assembly 40 to move, thereby driving the lifting platform 10 to descend. Therefore, the lifting mechanism replaces the chain transmission with the connecting rod assembly 40, and controls the lifting and lowering of the lifting platform 10 by driving the rotating shaft 30 and the connecting rod assembly 40 through the first driving member 20, so that the lifting and lowering of the lifting platform 10 is more stable, the operation is smoother, and it is not easy to get stuck, thereby solving the problem of unstable lifting and lowering of the lifting platform of the lifting mechanism in the prior art.

[0037] Optionally, the first driving member 20 is a motor, such as Figure 2 As shown, the first rotation direction is clockwise, and the second rotation direction is counterclockwise.

[0038] In this embodiment, the connecting rod assembly 40 includes a first connecting rod 41 and a second connecting rod 42. The first end of the first connecting rod 41 is fixedly connected to the rotating shaft 30, the second end of the first connecting rod 41 is hinged to the first end of the second connecting rod 42, and the second end of the second connecting rod 42 is hinged to the lifting platform 10.

[0039] Specifically, the first driving member 20 drives the rotating shaft 30 to rotate along the first rotation direction, the rotating shaft 30 drives the first connecting rod 41 to rotate, the first connecting rod 41 drives the second connecting rod 42 to rotate, and the second connecting rod 42 drives the lifting platform 10 to rise; the first driving member 20 drives the rotating shaft 30 to rotate along the second rotation direction, the rotating shaft 30 drives the first connecting rod 41 to rotate, the first connecting rod 41 drives the second connecting rod 42 to rotate, and the second connecting rod 42 drives the lifting platform 10 to descend.

[0040] In this embodiment, the lifting mechanism includes at least two connecting rod assemblies 40 , and the at least two connecting rod assemblies 40 are sequentially arranged along the extending direction of the rotating shaft 30 .

[0041] Specifically, at least two connecting rod assemblies 40 jointly drive various parts of the lifting platform 10 to rise and fall simultaneously, so that the lifting platform 10 can be lifted and lowered more smoothly.

[0042] Alternatively, if Figure 1 As shown, there are two connecting rod assemblies 40 .

[0043] In this embodiment, the lifting mechanism also includes a first conveyor line 50, which is arranged on the lifting platform 10; the lifting mechanism also includes a second driving member 60 and a transmission assembly 70, and the second driving member 60 drives the first conveyor line 50 to transport the workpiece along a first preset direction and a second preset direction through the transmission assembly 70, and the first preset direction and the second preset direction are opposite.

[0044] Specifically, the second driving member 60 drives the transmission assembly 70 to drive the first conveying line 50 to convey the workpiece along the first preset direction and the second preset direction respectively. Fig.10 As shown, the first preset direction is the direction in which the workpiece flows into the first conveyor line 50, and the second preset direction is the direction in which the workpiece flows out of the first conveyor line 50. Such an arrangement can provide power for the workpiece to flow into and out of the first conveyor line 50, facilitating the inflow and outflow of the workpiece.

[0045] Optionally, the second driving member 60 includes a motor.

[0046] In this embodiment, the first conveyor line 50 includes two conveying parts 51 arranged at an interval, and each conveying part 51 includes a first conveying chain 511, a first driving wheel 512 and a first driven wheel 513. The first conveying chain 511 is sleeved on the first driving wheel 512 and the first driven wheel 513; the transmission assembly 70 includes a connecting shaft 71, a second conveying chain 72, a second driving wheel 73 and a second driven wheel 74, and the second driving member 60 is drivingly connected to the second driving wheel 73 to drive the second driving wheel 73 to rotate; the second conveying chain 72 is sleeved on the second driving wheel 73 and the second driven wheel 74, and the second driven wheel 74 is fixedly arranged on the connecting shaft 71 and located between the first end and the second end of the connecting shaft 71; the first end of the connecting shaft 71 is fixedly connected to one first driving wheel 512, and the second end of the connecting shaft 71 is fixedly connected to another second driving wheel 73.

[0047] Specifically, the second driving member 60 drives the second active wheel 73 to rotate, the second active wheel 73 drives the second driven wheel 74 to rotate through the second conveying chain 72, the second driven wheel 74 drives the connecting shaft 71 to rotate, the connecting shaft 71 drives the two first active wheels 512 to rotate respectively, the first active wheel 512 drives the corresponding first driven wheel 513 to rotate through the corresponding first conveying chain 511, and the output end of the second driving member 60 can be forward and reversed, so that the second driving member 60 can drive the first conveying line 50 to convey the workpiece along the first preset direction and the second preset direction respectively through the transmission assembly 70.

[0048] In this embodiment, the first end of the first conveyor line 50 is used to dock with an external conveyor line, and a detection component 52 is provided at the first end of the first conveyor line 50, so that when the detection component 52 detects that the workpiece flows into the first conveyor line 50, the second driving component 60 is started to make the first conveyor line 50 convey the workpiece along a first preset direction; and when the detection component 52 detects that the workpiece flows out of the first conveyor line 50, the second driving component 60 stops running.

[0049] Specifically, the detection component 52 is used to control the start and stop of the second driving member 60. When the detection component 52 detects that the workpiece flows into the first conveyor line 50, the second driving member 60 is started, and the second driving member 60 drives the first conveyor line 50 to convey the workpiece along a first preset direction, and transports the material to the first conveyor line 50; when the detection component 52 detects that the workpiece flows out of the first conveyor line 50, the second driving member 60 stops.

[0050] Optionally, the detection component 52 is a through-beam sensor.

[0051] In this embodiment, the first conveyor line 50 has a first end and a second end arranged in sequence along its conveying direction, and the first end is used to connect with an external conveyor line; the second end of the first conveyor line 50 is provided with a mounting beam 53, and the lifting mechanism also includes: an induction switch 80, which is arranged on the mounting beam 53, and when the induction switch 80 detects that the workpiece runs to a preset position and flows out of a preset position, the first driving member 20 is started; and / or, a buffer block 90, which is arranged on the mounting beam 53, and the buffer block 90 is used to stop the workpiece at a preset position.

[0052] Specifically, when the induction switch 80 detects that the workpiece has moved to a preset position, the second drive member 60 stops, the first drive member 20 starts, and the drive shaft 30 rotates in the second rotation direction, driving the connecting rod assembly 40 to rotate, thereby driving the lifting platform 10 to descend, and the buffer block 90 is used to stop the workpiece at a preset position to prevent the workpiece from overflowing; when the lifting platform 10 descends into place, the first drive member 20 stops, and the second drive member 60 operates to drive the first conveyor line 50 to convey the workpiece in the second preset direction, and transport the material out of the first conveyor line 50.

[0053] Specifically, the buffer block 90 is made of rubber, and such a configuration has a buffering effect on the workpiece.

[0054] In this embodiment, the lifting mechanism also includes a first fixed plate 100, a second fixed plate 110, a guide column 120 and a guide portion 130. The first driving member 20 is arranged on the first fixed plate 100, and the second fixed plate 110 is located above the first fixed plate 100; the guide column 120 extends in a vertical direction, the first end of the guide column 120 is connected to the first fixed plate 100, and the second end of the guide column 120 is connected to the second fixed plate 110; the guide portion 130 is fixedly connected to the lifting platform 10, and the guide portion 130 is sleeved on the guide column 120 and performs reciprocating linear motion along the guide column 120.

[0055] Specifically, the first fixed plate 100 and the second fixed plate 110 support and protect the entire lifting mechanism. The guide portion 130 slides up and down on the guide column 120 as the lifting platform 10 rises and falls, playing a guiding role. The guide portion 130 cooperates with the guide column 120 to further limit the lifting range of the lifting platform 10, so that it can only make reciprocating linear motion along the guide column 120.

[0056] In this embodiment, the lifting mechanism also includes: a first limiting structure, which is arranged between the first fixed plate 100 and the lifting platform 10 and is used to limit the lifting platform 10 to the first extreme position; the first limiting structure includes a first fixed portion 141 and a first buffer pad 142 arranged on the first fixed portion 141, and the first buffer pad 142 is arranged on the side of the first fixed portion 141 close to the lifting platform 10; and / or, a second limiting structure, which is arranged between the second fixed plate 110 and the lifting platform 10 and is used to limit the lifting platform 10 to the second extreme position; the second limiting structure includes a second fixed portion 151 and a second buffer pad 152 arranged on the second fixed portion 151, and the second buffer pad 152 is arranged on the side of the second fixed portion 151 close to the lifting platform 10.

[0057] Specifically, when the lifting platform 10 descends and reaches the first limit position, the first buffer pad 142 stops the lifting platform 10, so that the lifting platform 10 cannot continue to descend; when the lifting platform 10 rises and reaches the second limit position, the second buffer pad 152 stops the lifting platform 10, so that the lifting platform 10 cannot continue to rise. The first limiting structure and the second limiting structure are used to limit the lifting height of the lifting platform 10.

[0058] Optionally, the first buffer pad 142 and the second buffer pad 152 are both made of rubber. Such a configuration has a buffering effect on the lifting platform 10 .

[0059] Specifically, the first driving member 20 is connected to the rotating shaft 30 via a coupling.

[0060] The present invention also provides a conveying device, including a lifting mechanism 1, a first conveying line and a second conveying line. The lifting mechanism is the lifting mechanism in the above embodiment. The lifting platform 10 of the lifting mechanism 1 performs reciprocating linear motion in the vertical direction to connect with the first conveying line and the second conveying line respectively.

[0061] The conveying device of the present invention comprises a lifting mechanism 1, a first conveying line and a second conveying line. The lifting mechanism is the lifting mechanism in the above embodiment. The lifting platform 10 of the lifting mechanism 1 performs reciprocating linear motion in the vertical direction to respectively connect with the first conveying line and the second conveying line. The lifting mechanism comprises a lifting platform 10, a first driving member 20, a rotating shaft 30 and a connecting rod assembly 40. The first driving member 20 drives the rotating shaft 30 to rotate in the first rotation direction, and the rotating shaft 30 drives the connecting rod assembly 40 to move, thereby driving the lifting platform 10 to rise; the first driving member 20 drives the rotating shaft 30 to rotate in the second rotation direction, and the rotating shaft 30 drives the connecting rod assembly 40 to move, thereby driving the lifting platform 10 to descend. Therefore, the lifting mechanism replaces the chain transmission with the connecting rod assembly 40, and controls the lifting and lowering of the lifting platform 10 by driving the rotating shaft 30 and the connecting rod assembly 40 through the first driving member 20, so that the lifting and lowering of the lifting platform 10 is more stable, the operation is smoother, and it is not easy to get stuck, thereby solving the problem of unstable lifting and lowering of the lifting platform of the lifting mechanism in the prior art.

[0062] For an automated assembly line, the line body will be divided into a first conveyor line and a second conveyor line. The first conveyor line is in operation, and the second conveyor line is used to convey the returned tooling. The lifting mechanism 1 is used to transport the returned tooling. In specific implementation, the present invention starts with simplifying the structure of the lifting mechanism. Since the chain transmission will vibrate, the up and down lifting process is not smooth, and the transportation time is long, and the structure of the lifting mechanism 1 is simpler and clearer, so the present invention uses the lifting mechanism 1 instead of the chain transmission, and drives the rotating shaft 30 and the connecting rod assembly 40 through the first driving member 20 to control the lifting of the lifting platform 10, so that the lifting of the lifting platform 10 is more stable, the operation is smoother, and it is not easy to get stuck. By using the lifting mechanism 1, the working stability is improved, the working time is reduced, and the efficiency is increased.

[0063] In specific implementation, the present invention can be used for the backflow of front and rear tooling in an automated production line, the replacement of upper and lower belt lines, etc. When the first conveyor line of the upper equipment receives materials, the first driving member 20 is actuated to drive the rotating shaft 30 to rotate along the first rotation direction, driving the connecting rod assembly 40 to rotate to control the lifting platform 10 to rise. When the lifting platform 10 rises to the right position, the first driving member 20 stops running and remains motionless; when the incoming material triggers the detection component 52, the second driving member 60 is actuated to drive the first conveyor line 50 to convey the workpiece along the first preset direction, and the material is transported to the first conveyor line 50. When the induction switch 80 detects that the workpiece has moved to the preset direction, the second driving member 60 is actuated to drive the first conveyor line 50 to convey the workpiece. When the lifting platform 10 reaches the first limit position, the second driving member 60 stops, the first driving member 20 starts, the driving shaft 30 rotates in the second rotation direction, drives the connecting rod assembly 40 to rotate, and then drives the lifting platform 10 to descend. The buffer block 90 is used to stop the workpiece at the preset position to prevent the workpiece from overflowing; when the lifting platform 10 descends to the first limit position, the second driving member 60 acts to drive the first conveyor line 50 to convey the workpiece in the second preset direction, and transports the material out of the first conveyor line 50; when the detection component 52 cannot sense the material, the second driving member 60 stops, and the first driving member 20 acts to make the lifting platform 10 return to the second limit device. The above actions constitute an operation cycle; when the next material arrives, repeat the above actions; when the second conveyor line of the lower-level equipment arrives, the action is the same as when the upper-level equipment arrives, except that the first driving member 20 first drives the lifting platform 10 to descend, and then rises again to complete a cycle.

[0064] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0065] The lifting mechanism of the present invention includes a lifting platform 10, a first driving member 20, a rotating shaft 30 and a connecting rod assembly 40. The first driving member 20 drives the rotating shaft 30 to rotate along a first rotation direction, and the rotating shaft 30 drives the connecting rod assembly 40 to move, thereby driving the lifting platform 10 to rise; the first driving member 20 drives the rotating shaft 30 to rotate along a second rotation direction, and the rotating shaft 30 drives the connecting rod assembly 40 to move, thereby driving the lifting platform 10 to descend. Therefore, the lifting mechanism replaces the chain transmission with the connecting rod assembly 40, and controls the lifting and lowering of the lifting platform 10 by driving the rotating shaft 30 and the connecting rod assembly 40 through the first driving member 20, so that the lifting and lowering of the lifting platform 10 is more stable, the operation is smoother, and it is not easy to get stuck, thereby solving the problem of unstable lifting and lowering of the lifting platform of the lifting mechanism in the prior art.

[0066] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0067] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lifting mechanism, comprising a lifting platform (10), characterized in that: The lifting mechanism further comprises a first driving member (20), a rotating shaft (30) and a connecting rod assembly (40); a first end of the connecting rod assembly (40) is fixedly connected to the rotating shaft (30), and a second end of the connecting rod assembly (40) is hinged to the lifting platform (10); the first driving member (20) is drivingly connected to the rotating shaft (30), and the rotating shaft (30) is rotatably arranged along a first rotation direction and a second rotation direction respectively under the drive of the first driving member (20), so that when the rotating shaft (30) rotates along the first rotation direction, the connecting rod assembly (40) drives the lifting platform (10) to rise, and when the rotating shaft (30) rotates along the second rotation direction, the connecting rod assembly (40) drives the lifting platform (10) to descend; wherein the first rotation direction is opposite to the second rotation direction; The connecting rod assembly (40) comprises a first connecting rod (41) and a second connecting rod (42), wherein the first end of the first connecting rod (41) is fixedly connected to the rotating shaft (30), the second end of the first connecting rod (41) is hinged to the first end of the second connecting rod (42), and the second end of the second connecting rod (42) is hinged to the lifting platform (10); The lifting mechanism further comprises a first conveying line (50), a second driving member (60) and a transmission assembly (70), wherein the first conveying line (50) is arranged on the lifting platform (10); the second driving member (60) drives the first conveying line (50) to convey the workpiece along a first preset direction and a second preset direction through the transmission assembly (70), wherein the first preset direction is opposite to the second preset direction; The first conveying line (50) has a first end and a second end arranged in sequence along its conveying direction, the first end of the first conveying line (50) is used to dock with an external conveying line, and the first end of the first conveying line (50) is provided with a detection component (52), so that when the detection component (52) detects that a workpiece flows into the first conveying line (50), the second driving component (60) is started to make the first conveying line (50) convey the workpiece along the first preset direction; and when the detection component (52) detects that the workpiece flows out of the first conveying line (50), the second driving component (60) stops running; The second end of the first conveying line (50) is provided with a mounting beam (53); the lifting mechanism further comprises an induction switch (80), wherein the induction switch (80) is provided on the mounting beam (53), and when the induction switch (80) detects that the workpiece runs to a preset position and flows out of the preset position, the first driving member (20) is started.

2. The lifting mechanism according to claim 1, characterized in that: The lifting mechanism comprises at least two connecting rod assemblies (40), and the at least two connecting rod assemblies (40) are arranged in sequence along the extension direction of the rotating shaft (30).

3. The lifting mechanism according to claim 1 or 2, characterized in that: The first conveying line (50) comprises two conveying parts (51) arranged at intervals, each of the conveying parts (51) comprises a first conveying chain (511), a first driving wheel (512) and a first driven wheel (513), and the first conveying chain (511) is sleeved on the first driving wheel (512) and the first driven wheel (513); The transmission assembly (70) comprises a connecting shaft (71), a second conveying chain (72), a second driving wheel (73) and a second driven wheel (74); the second driving member (60) is drivingly connected to the second driving wheel (73) to drive the second driving wheel (73) to rotate; the second conveying chain (72) is sleeved on the second driving wheel (73) and the second driven wheel (74); the second driven wheel (74) is fixedly arranged on the connecting shaft (71) and located between the first end and the second end of the connecting shaft (71); the first end of the connecting shaft (71) is fixedly connected to one of the first driving wheels (512), and the second end of the connecting shaft (71) is fixedly connected to another of the second driving wheels (73).

4. The lifting mechanism according to claim 1 or 2, characterized in that: The lifting mechanism also includes: A buffer block (90) is arranged on the mounting beam (53), and the buffer block (90) is used to stop the workpiece at the preset position.

5. The lifting mechanism according to claim 1 or 2, characterized in that: The lifting mechanism further comprises a first fixed plate (100), a second fixed plate (110), a guide column (120) and a guide portion (130); the first driving member (20) is arranged on the first fixed plate (100), and the second fixed plate (110) is located above the first fixed plate (100); the guide column (120) extends in a vertical direction, the first end of the guide column (120) is connected to the first fixed plate (100), and the second end of the guide column (120) is connected to the second fixed plate (110); the guide portion (130) is fixedly connected to the lifting platform (10), and the guide portion (130) is sleeved on the guide column (120) and performs reciprocating linear motion along the guide column (120).

6. The lifting mechanism according to claim 5, characterized in that: The lifting mechanism also includes: a first limiting structure, arranged between the first fixing plate (100) and the lifting platform (10) and used for limiting the lifting platform (10) at a first limit position; the first limiting structure comprises a first fixing portion (141) and a first buffer pad (142) arranged on the first fixing portion (141), the first buffer pad (142) being arranged on a side of the first fixing portion (141) close to the lifting platform (10); and / or, A second limiting structure is arranged between the second fixing plate (110) and the lifting platform (10) and is used to limit the lifting platform (10) at a second extreme position; the second limiting structure comprises a second fixing portion (151) and a second buffer pad (152) arranged on the second fixing portion (151), and the second buffer pad (152) is arranged on a side of the second fixing portion (151) close to the lifting platform (10).

7. A conveying device, comprising a lifting mechanism (1), a first conveying line and a second conveying line, characterized in that: The lifting mechanism (1) is the lifting mechanism described in any one of claims 1 to 6, and the lifting platform (10) of the lifting mechanism (1) performs reciprocating linear motion in the vertical direction to respectively connect with the first conveying line and the second conveying line.

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