Automatic lifting conveyor device

Abstract

The present invention relates to the technical field of conveying devices, and specifically to an automatic lifting conveying device, comprising: a bracket; a lifting mechanism, comprising a bearing platform, which is arranged on the bracket and can be lifted and lowered between an initial position and a terminal position; a conveying mechanism, comprising a force-applying component, which can reciprocate between a loading position away from the bearing platform and a discharge position close to the bearing platform, when the force-applying component drives the object to be lifted to move from the loading position to the discharge position, the object to be lifted is located above the bearing platform, and the reciprocating movement of the force-applying component between the loading position and the discharge position does not interfere with the lifting and lowering of the bearing platform between the initial position and the terminal position. The automatic lifting conveying device provided by the present invention has a simple structure, low cost, and more stable operation.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, and in particular to an automatic lifting conveying device. Background Art

[0002] In the process of production and processing, it is often necessary to transport materials in a specific form. For example, in the production process of silica sand well bricks, the bricks formed by the press need to be maintained with pallets. Therefore, a large number of pallets are needed in the production process. The pallets are placed on the conveyor belt and transported to the designated workstation. However, if the step of transporting the pallets to the conveyor belt relies on manual transport of the pallets, it is time-consuming and labor-intensive, and the production efficiency is low. Therefore, the prior art adopts vertical lifting equipment, including a horizontal supply mechanism and a vertical mounting frame. A lifting drive power mechanism is arranged on the top of the vertical mounting frame. The lifting drive power mechanism is connected to a support plate. A track frame is arranged on the support plate. A lifting plate is also arranged inside the track frame. The lifting plate is connected to the support plate via a hydraulic lifting mechanism; the horizontal supply mechanism includes a horizontal mounting frame, a horizontal mounting frame, and a vertical mounting frame. A mounting plate is provided on the mounting frame, and a transverse driving hydraulic cylinder is provided on the mounting plate. The transverse driving hydraulic cylinder is connected to the placing frame, and the walking wheels at the bottom of the placing frame are placed in the groove of the supporting platform. In the early stage, the workers place the stacked wooden boards on the placing frame by a forklift, and start the transverse driving hydraulic cylinder after placement. The transverse driving hydraulic cylinder pushes the placing frame forward and pushes the placing frame onto the track frame. The lifting plate lifts the wooden board relative to the track frame. When the lifting plate lifts the wooden board to separate from the placing frame, the transverse driving hydraulic cylinder drives the placing frame back to its initial position, and the hydraulic lifting mechanism drives the lifting plate to descend and places the wooden board on the track frame. Then the lifting driving power mechanism lifts the supporting plate upward, and drives the track frame on the supporting plate upward, thereby realizing the lifting of the wooden board.

[0003] Although the prior art realizes automatic lifting of the wooden board, the device needs to be separately provided with a lifting plate. After the placing frame is pushed onto the track frame by the transversely driven hydraulic cylinder, the lifting plate is still needed to support the wooden board, withdraw the placing frame, and drop the lifting plate to place the wooden board on the track frame, and then the track frame is lifted by the lifting drive power mechanism. Not only is the structure and operation steps complicated, which increases the failure rate, but also in order to reserve lifting space for the lifting plate, the installation height of the track frame needs to be raised. Therefore, the installation position of the placing frame must also be increased accordingly, which increases the difficulty of operation and causes the center of gravity of the device to increase, and also places higher requirements on the structural stability of the device, thereby increasing the production cost. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the vertical lifting equipment in the prior art, such as complex structure, high failure rate and high production cost, so as to provide an automatic lifting and conveying device with simple structure, low cost and more stable operation.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An automatic lifting and conveying device comprises: a bracket; a lifting mechanism, comprising a bearing platform, which is arranged on the bracket and can be lifted and lowered between an initial position and a terminal position; a conveying mechanism, comprising a force-applying component, which can reciprocate between a loading position away from the bearing platform and a unloading position close to the bearing platform, when the force-applying component drives the object to be lifted to move from the loading position to the unloading position, the object to be lifted is located above the bearing platform, and the reciprocating movement of the force-applying component between the loading position and the unloading position does not interfere with the lifting and lowering of the bearing platform between the initial position and the terminal position.

[0007] A plurality of pallets are stacked to form a stack of objects to be lifted and placed in the loading position, and a force-applying component acts on the stack to drive the stack to move from the loading position to the unloading position. When the stack is in the unloading position, the stack as a whole is located above the carrying platform. Since the reciprocating movement of the force-applying component between the loading position and the unloading position does not interfere with the reciprocating lifting and lowering of the carrying platform between the initial position and the terminal position, that is, no matter whether the force-applying component is in the loading position or the unloading position, the carrying platform can be freely lifted and lowered without interference from the force-applying component. Therefore, after the force-applying component moves the stack to the unloading position, the carrying platform can directly rise to lift and lift the stack as a whole without waiting for the force-applying component to move away from the unloading position, and there is no need to set up an additional lifting platform to lift the stack so that the force-applying component can be moved away from the unloading position, thereby simplifying the device structure and operating steps, and improving the conveying efficiency. Since there is no need to reserve lifting space for the additional lifting platform, the overall height of the device can be reduced, the center of gravity is lower, and the operation is more stable and reliable. At the same time, the loading height of the stack is reduced, which also reduces the stacking conveying cost and conveying time.

[0008] The conveying mechanism includes a horizontally extending conveying surface. When the load platform is located at the initial position, the conveying surface is coplanar with the load surface of the load platform. The force-applying component drives the object to be lifted to move along the conveying surface directly from the loading position to the unloading position on the load surface of the load platform.

[0009] The conveying surface can be formed by the conveying mechanism itself, or by the ground or other surfaces. Since the conveying surface is coplanar with the carrying surface of the carrying platform when it is in the initial position, the pallet can be moved directly from the conveying surface to the carrying surface. The pallet can be lifted as a whole when the carrying platform rises. At the same time, the movement of the pallet is more stable and safe.

[0010] The force-applying component is a vertically extending push plate, and the object to be lifted is placed between the push plate and the carrying platform. The push plate pushes the pallet to move along the conveying surface until the pallet moves directly to the carrying surface of the carrying platform. The push plate will not interfere with the lifting and lowering of the carrying platform, and the loading and unloading of the pallet is faster and more convenient.

[0011] The support includes a base and a mounting frame arranged on one side of the base, the bearing platform is arranged on the mounting frame, the force-applying component is arranged on the other side of the base, and the base forms the conveying surface. The base can be made of a high-strength material with low friction resistance to reduce the friction of the stacking moving along the conveying surface.

[0012] A plurality of rollers may also be provided on the base, and the plurality of rollers constitute a conveying surface. The pallet is placed on the rollers as a whole, and a force-applying component drives the pallet to move along the rolling surface of the rollers to the bearing surface of the bearing platform, which is more labor-saving.

[0013] The base has a space suitable for the bearing platform to fall, and the bearing platform falls to the initial position and is flush with the conveying surface. When the bearing platform falls to the initial position, the bearing surface is flush with the conveying surface.

[0014] The conveying mechanism also includes a conveying drive mechanism that drives the force-applying component to reciprocate between the loading position and the unloading position. The conveying drive mechanism is arranged between the force-applying component and the supporting platform, or is arranged below the supporting platform, which can save the overall occupied area of ​​the device and is conducive to concealing the conveying drive mechanism to avoid harm to the operator.

[0015] The conveying drive mechanism is arranged between the force-applying component and the supporting platform, located below the conveying surface, and has a telescopic rod, one end of which is fixedly connected to the force-applying component. The telescopic rod pulls the force-applying component to move from the loading position to the unloading position, and correspondingly, the telescopic rod pushes the force-applying component to move from the unloading position to the loading position.

[0016] The push mechanism is also provided on the support, and the push mechanism has a telescopic arm for pushing the objects to be lifted stacked on the carrying platform out of the carrying platform layer by layer. The setting of the push mechanism can push the objects to be lifted to a suitable height out of the carrying platform layer by layer to enter the next process.

[0017] The lifting mechanism also includes a travel control system for controlling the lifting stroke of the load-bearing platform, and the travel control system includes a first travel switch arranged on the travel path of the object to be lifted. When the object to be lifted stacked on the top layer of the load-bearing platform triggers the first travel switch, the load-bearing platform stops rising, and after the telescopic arm moves out the object to be lifted on the top layer, the travel control system instructs the load-bearing platform to continue rising until the first travel switch is triggered again, and this process repeats until all the objects to be lifted on the load-bearing platform are moved out.

[0018] The travel control system also includes a second travel switch arranged on the travel path of the object to be lifted, and a first trigger structure arranged on the carrying platform for triggering the second travel switch. When all the objects to be lifted on the carrying platform are pushed out, the first trigger structure triggers the second travel switch, and the travel control system instructs the carrying platform to descend.

[0019] The travel control system also includes a third travel switch arranged on the bracket, and a second trigger structure arranged on the carrier for triggering the third travel switch. The carrier stops descending when the second trigger structure triggers the third travel switch. The travel control system instructs the force-applying component to drive the next batch of objects to be lifted from the loading position to the unloading position to enter the next conveying cycle. The setting of the travel control system completes the automatic conveying, automatic lifting and automatic pushing of the objects to be lifted, and transports the objects to be lifted on the pallet one by one to the next process, thereby improving the conveying efficiency. In addition, the travel switch has low cost, accurate triggering, and is safe and reliable.

[0020] The lifting mechanism further includes a lifting drive mechanism for driving the supporting platform to lift and lower. The lifting drive mechanism is a chain-type lifting mechanism arranged on the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a front view of the automatic lifting and conveying device provided in the first embodiment of the present invention;

[0023] Figure 2 for Figure 1 A top view of the automatic lifting and conveying device is shown.

[0024] Description of reference numerals:

[0025] 1-base; 2-mounting frame; 3-carrying platform; 4-force-applying component; 5-pushing mechanism; 6-second stroke switch; 7-third stroke switch; 8-first trigger structure; 9-second trigger structure; 10-hydraulic cylinder; 11-palletizing; 12-first stroke switch. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Embodiment 1

[0031] like Figure 1 and Figure 2As shown, an automatic lifting and conveying device provided in this embodiment includes: a bracket; a lifting mechanism, including a load-bearing platform 3, which is arranged on the bracket and can be lifted and lowered between an initial position and a terminal position; a conveying mechanism, including a force-applying component 4, and the force-applying component 4 can reciprocate between a loading position away from the load-bearing platform 3 and a unloading position close to the load-bearing platform 3. When the force-applying component 4 drives the object to be lifted to move from the loading position to the unloading position, the object to be lifted is located above the load-bearing platform 3, and the reciprocating movement of the force-applying component 4 between the loading position and the unloading position does not interfere with the lifting and lowering of the load-bearing platform 3 between the initial position and the terminal position.

[0032] A plurality of pallets are stacked to form a stack 11 to be placed at the loading position, and the force-applying component 4 acts on the stack 11 to drive the stack 11 to move from the loading position to the unloading position. When the stack 11 is at the unloading position, the stack 11 is located above the carrier 3 as a whole. Since the reciprocating movement of the force-applying component 4 between the loading position and the unloading position does not interfere with the reciprocating lifting of the carrier 3 between the initial position and the terminal position, that is, no matter whether the force-applying component 4 is at the loading position or the unloading position, the carrier 3 can be lifted and lowered freely without interference from the force-applying component 4. Therefore, when the force-applying component 4 moves the stack 11 to the unloading position, the load-bearing platform 3 can be lifted and lowered freely without interference from the force-applying component 4. After the stack 11 moves to the unloading position, the supporting platform 3 can directly rise to lift and lift the stack 11 as a whole without waiting for the force-applying component 4 to be moved from the unloading position, and there is no need to set up an additional lifting platform to lift the stack 11 so that the force-applying component 4 can be moved from the unloading position, thereby simplifying the device structure and operating steps and improving the conveying efficiency. Since there is no need to reserve lifting space for an additional lifting platform, the overall height of the device can be reduced, the center of gravity is lower, and the operation is more stable and reliable. At the same time, the loading height of the stack 11 is reduced, which also reduces the conveying cost and conveying time of the stack 11.

[0033] Specifically, the bracket includes a base 1 and a mounting frame 2 arranged on one side of the base 1, the bearing platform 3 is arranged on the mounting frame 2, and the force-applying component 4 is arranged on the other side of the base 1. The initial position of the bearing platform 3 is lower than the terminal position. The lifting mechanism also includes a lifting drive mechanism for driving the bearing platform 3 to lift and lower. The lifting drive mechanism is a chain-type lifting mechanism installed on the top of the mounting frame 2, which can drive the bearing platform 3 to rise from the initial position to the terminal position, or to fall from the terminal position to the initial position.

[0034] The support platform 3 is a frame-shaped car, and its bottom forms a support surface.

[0035] The base 1 forms a horizontally extending conveying surface, and the base 1 has a space suitable for the load-bearing platform 3 to fall. When the load-bearing platform 3 falls to the initial position, the load-bearing surface is flush with the conveying surface. The force-applying component 4 is a vertically extending push plate provided on one side of the load-bearing platform 3. The object to be lifted is placed on the conveying surface between the push plate and the load-bearing platform 3. The push plate pushes the pallet 11 to move along the conveying surface until the pallet 11 moves directly from one side of the frame-shaped car to the load-bearing surface. The push plate will not interfere with the lifting and lowering of the load-bearing platform 3, and the loading and unloading of the pallet 11 are faster and more convenient.

[0036] The conveying mechanism also includes a conveying drive mechanism that drives the push plate to reciprocate between the loading position and the unloading position. The conveying drive mechanism is arranged between the push plate and the load platform 3, located below the conveying surface, and has a telescopic rod, one end of which is fixedly connected to the push plate. The telescopic rod pulls the push plate from the loading position to the unloading position. Correspondingly, the telescopic rod pushes the push plate from the unloading position to the loading position, which can save the overall occupied area of ​​the device and is conducive to concealing the conveying drive mechanism to avoid harm to the operator. Specifically, the conveying drive mechanism is a hydraulic cylinder 10.

[0037] The automatic lifting and conveying device also includes a pushing mechanism 5 arranged on the bracket, and the pushing mechanism 5 is a horizontal pushing mechanism 5, which has a telescopic arm for pushing the objects to be lifted stacked on the carrying platform 3 out of the carrying platform 3 layer by layer. The setting of the pushing mechanism 5 can push the objects to be lifted that have been lifted to a suitable height out of the carrying platform 3 layer by layer to enter the next process.

[0038] In order to realize automation, the lifting mechanism also includes a travel control system for controlling the lifting travel of the load-bearing platform 3. The travel control system includes a first travel switch 12 arranged on the travel path of the object to be lifted. When the object to be lifted stacked on the top layer of the load-bearing platform 3 triggers the first travel switch 12, the load-bearing platform 3 stops rising, and after the telescopic arm moves out the object to be lifted on the top layer, the travel control system instructs the load-bearing platform 3 to continue rising until the first travel switch 12 is triggered again, and so on and so forth until all the objects to be lifted on the load-bearing platform 3 are pushed out. The first travel switch 12 is arranged on the mounting frame 2.

[0039] The travel control system also includes a second travel switch 6 arranged on the travel path of the object to be lifted, and a first trigger structure 8 arranged on the carrying platform 3 for triggering the second travel switch 6. When all the objects to be lifted on the carrying platform 3 are pushed out, the first trigger structure 8 triggers the second travel switch 6, and the travel control system instructs the carrying platform 3 to descend.

[0040] The travel control system also includes a third travel switch 7 arranged on the bracket, and a second trigger structure 9 arranged on the bearing platform 3 for triggering the third travel switch 7. When the second trigger structure 9 triggers the third travel switch 7, the bearing platform 3 stops descending, and the travel control system instructs the force-applying component 4 to drive the next batch of objects to be lifted to move from the loading position to the unloading position to enter the next conveying cycle. The setting of the travel control system completes the automatic conveying, automatic lifting and automatic pushing of the objects to be lifted, and transports the objects waiting to be lifted on the pallet to the next process one by one, thereby improving the conveying efficiency. In addition, the travel switch has low cost, accurate triggering, and is safe and reliable. The first trigger structure 8 and the second trigger structure 9 are protrudingly arranged on the side of the bearing platform 3, the first trigger structure 8 is arranged at the lower part of the bearing platform 3, and the second trigger structure 9 is arranged at the upper part of the bearing platform 3. The second travel switch 6 and the third travel switch 7 are both arranged on the mounting frame 2, and accordingly, the second travel switch 6 is located below the third travel switch 7.

[0041] The working process of the automatic lifting and conveying device is as follows: the carrying platform 3 is located in the initial position, its carrying surface is coplanar with the conveying surface, the force-applying component 4 is located in the loading position away from the carrying platform 3, and the operator places the stack 11 formed by stacking a number of objects to be lifted on the conveying surface between the force-applying component 4 and the carrying platform 3. The telescopic rod of the conveying drive mechanism acts on the force-applying component 4, pulling the force-applying component 4 to move toward the carrying platform 3, pushing the stack 11 to move along the conveying surface until the force-applying component 4 moves to the unloading position, and moves the stack 11 to the carrying surface; the lifting drive mechanism drives the carrying platform 3 to rise along the mounting frame 2, and the objects to be lifted placed on the top layer of the stack 11 rise to a certain height, triggering the first travel switch 12, The loading platform 3 stops rising, and the telescopic arm of the pushing mechanism 5 pushes or pulls the topmost object to be lifted out of the loading platform 3 to enter the next process. The telescopic arm is reset, and the loading platform 3 continues to rise until the topmost object to be lifted triggers the first stroke switch 12 again. The telescopic arm drives the topmost object to be lifted to enter the next process until all the objects to be lifted on the loading platform 3 are moved out of the loading platform 3; the first trigger structure 8 on the loading platform 3 triggers the second stroke switch 6, and the loading platform 3 starts to descend until the second trigger structure 9 of the loading platform 3 triggers the third stroke switch 7, and the loading platform 3 stops descending; at this time, the force-applying component 4 moves from the unloading position to the loading position, and the operator loads the next batch of pallets 11 and enters the next conveying cycle.

[0042] As an alternative implementation of Example 1, the force-applying component is a platform that can be translated along the base, and the platform is in a shape that can be engaged with the carrying platform. For example, the platform is a U-shaped platform with its opening facing the carrying platform, and the carrying platform can be embedded in the opening of the U-shaped platform. The conveying surface of the U-shaped platform is higher than or flush with the carrying surface of the carrying platform. The position where the force-applying component and the carrying platform are engaged is the unloading position, and the lifting drive mechanism drives the carrying platform to rise and fall from the inside of the force-applying component, and the force-applying component and the carrying platform do not interfere with each other.

[0043] As an alternative implementation of the first embodiment, the force-applying component is an L-shaped push plate, and the horizontal portion of the L-shaped push plate is in a shape that can be engaged with the supporting platform.

[0044] As an alternative implementation of Example 1, the conveying surface is formed by the ground, and the ground has a cavity suitable for the bearing platform to fall. The bearing platform falls into the cavity and the bearing surface is flush with the ground; the hydraulic cylinder is located in a groove on the ground.

[0045] As an alternative implementation of the first embodiment, the second travel switch and the third travel switch are mounted on the base.

[0046] As an alternative implementation of the first embodiment, the outer cover of the hydraulic cylinder is provided with a dustproof shell.

[0047] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An automatic lifting and conveying device, characterized in that: include: Bracket; A lifting mechanism comprises a bearing platform (3) which is arranged on the support and can be lifted and lowered between an initial position and an end position; The conveying mechanism comprises a force-applying component (4), wherein the force-applying component (4) can reciprocate between a loading position away from the carrier platform (3) and a discharge position close to the carrier platform (3); when the force-applying component (4) drives the object to be lifted to move from the loading position to the discharge position, the object to be lifted is located above the carrier platform (3); the reciprocating movement of the force-applying component (4) between the loading position and the discharge position does not interfere with the lifting and lowering of the carrier platform (3) between the initial position and the terminal position. The conveying mechanism comprises a horizontally extending conveying surface, and the force-applying component (4) drives the object to be lifted to move directly from the loading position to the unloading position on the bearing surface of the bearing platform (3) along the conveying surface. The force-applying component (4) is an L-shaped push plate, the horizontal portion of which is shaped to be engaged with the bearing platform, the object to be lifted is placed between the push plate and the bearing platform (3), the bearing platform (3) is a frame-shaped car, the bottom of which forms a bearing surface, The support comprises a base (1) and a mounting frame (2) arranged on one side of the base (1), the bearing platform (3) is arranged on the mounting frame (2), the force-applying component (4) is arranged on the other side of the base (1), and the base (1) forms the conveying surface. When the carrying platform (3) is located at the initial position, the conveying surface and the carrying surface of the carrying platform (3) are coplanar, The conveying mechanism further comprises a conveying driving mechanism for driving the force-applying component (4) to reciprocate between the loading position and the unloading position, wherein the conveying driving mechanism is arranged between the force-applying component (4) and the supporting platform (3) and comprises a telescopic rod, one end of which is fixedly connected to the force-applying component (4). The lifting mechanism also includes a travel control system for controlling the lifting travel of the load-bearing platform (3), the travel control system including a third travel switch (7) arranged on the bracket, and a second trigger structure (9) arranged on the load-bearing platform (3) for triggering the third travel switch (7), the load-bearing platform (3) stops descending when the second trigger structure (9) triggers the third travel switch (7), and the travel control system instructs the force-applying component (4) to drive the next batch of objects to be lifted to move from the loading position to the unloading position.

2. The automatic lifting and conveying device according to claim 1 is characterized in that: The base (1) has a space suitable for the bearing platform (3) to fall, and when the bearing platform (3) falls to the initial position, the bearing surface is flush with the conveying surface.

3. The automatic lifting and conveying device according to claim 1 or 2, characterized in that: It also comprises a pushing mechanism (5) arranged on the bracket, wherein the pushing mechanism (5) has a telescopic arm for pushing the objects to be lifted stacked on the carrying platform (3) out of the carrying platform (3) layer by layer.

4. The automatic lifting and conveying device according to claim 3 is characterized in that: The travel control system comprises a first travel switch (12) arranged on the travel path of the object to be lifted; when the object to be lifted stacked on the top layer of the support platform (3) triggers the first travel switch (12), the support platform (3) stops rising; and after the telescopic arm moves out of the top layer of the object to be lifted, the travel control system instructs the support platform (3) to continue rising until the first travel switch (12) is triggered again.

5. The automatic lifting and conveying device according to claim 4 is characterized in that: The travel control system further comprises a second travel switch (6) arranged on the travel path of the object to be lifted, and a first trigger structure (8) arranged on the support platform (3) for triggering the second travel switch (6); when the first trigger structure (8) triggers the second travel switch (6), the travel control system instructs the support platform (3) to descend.

6. The automatic lifting and conveying device according to claim 1 or 2, characterized in that: The lifting mechanism also includes a lifting drive mechanism for driving the supporting platform (3) to lift and lower, and the lifting drive mechanism is a chain-type lifting mechanism arranged on the bracket.

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