Jack-up system

Abstract

The utility model discloses a top support system, including first conveying belt, material distributing mechanism, second conveying belt and material stacking mechanism, when using, the material stacking is conveyed to material distributing mechanism by first conveying belt, material distributing mechanism props up the material stacking and separates gradually to convey second conveying belt, the single material is conveyed to material stacking mechanism by second conveying belt gradually, and the material stacking structure props up several materials respectively to stack again, the utility model discloses simple structure, through the modular configuration of the first jacking module and top support subassembly of material distributing mechanism, the second jacking module and top support subassembly of material stacking mechanism and so on module, increase and decrease in combination with the top block overturning structure and magnetic attraction part, can realize the separate feeding of stacked material, can also complete the separate stacking of processed material, and supports separate use or side -by -side combination use, and with the help of aluminium alloy fixed size, and the versatility is strong.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a top support system. Background Technology

[0002] In the field of automated production, precise material feeding and stable material release are core elements for achieving efficient material flow. Lifting devices, as key equipment, are widely used for lifting, transferring, and positioning plate-shaped materials, and are crucial for connecting different production lines and realizing automated material flow. While robotic grippers are a common material release method in existing technologies, they rely on complex vision recognition and trajectory planning systems, resulting in limitations such as high equipment costs and maintenance difficulties. Furthermore, they suffer from limited functionality, failing to simultaneously address the issues of flexible and stable material support and efficient release; limited adaptability, with fixed support structures that cannot accommodate plate-shaped materials of different specifications and materials, requiring separate design for specific materials, increasing production and maintenance costs; and complex control systems, often relying on PLCs and other equipment, which not only increases equipment investment but also the difficulty of subsequent debugging and maintenance. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a top support system with a simple structure, electronic control relying on a sequential control circuit, low cost, strong versatility, and the ability to be used alone or in parallel, taking into account both feeding and receiving functions.

[0004] To solve the above-mentioned technical problems, the present invention provides a top-supporting system for separating stacked materials one by one for processing, and then stacking the processed materials one by one. The system includes a first conveyor belt, a material distribution mechanism, a second conveyor belt, and a stacking mechanism. In use, the first conveyor belt transports the stacked materials to the material distribution mechanism, which lifts the stacked materials and separates them one by one to transport them to the second conveyor belt. The second conveyor belt transports individual materials one by one to the stacking mechanism, which then lifts several materials to stack them.

[0005] Furthermore, the material distribution mechanism includes a first lifting module for lifting materials and a first support assembly disposed on both sides of the first lifting module. When the first lifting module lifts up N stacked materials, the first support assembly is used to lift the second to Nth materials from bottom to top while leaving the first material on the first lifting module.

[0006] The stacking mechanism includes a second lifting module and a second support assembly disposed on both sides of the second lifting module. The second lifting module is used to lift the materials conveyed by the second conveyor belt one by one, and the second support assembly is used to support the materials lifted by the second lifting module each time to stack them from top to bottom.

[0007] Furthermore, both the first top support assembly and the second top support assembly include a rotating shaft and a top block rotatably mounted on the rotating shaft. The top block is used to flip upward when subjected to an upward force to avoid the material and to flip downward when subjected to a downward force to enter the bottom of the material to support the material.

[0008] Furthermore, both the first top support assembly and the second top support assembly include a limiting part, which is used to restrict the top block from flipping downward when the top block is in the supported state.

[0009] Furthermore, the top block has a top support portion and a driving portion for supporting materials. The driving portion is used to drive the top support portion to flip up or down to avoid or support the materials when subjected to an upward or downward force.

[0010] Furthermore, the top support has a support surface for supporting materials and a limiting portion formed on the outside of the support surface. The limiting portion is disposed on the upper side of the top support at a position corresponding to the limiting portion. When the top support is in a horizontal support state, the limiting portion abuts against the lower side of the limiting portion to keep the top support in a support state.

[0011] Furthermore, the inner side of the limiting portion of the first top support assembly is provided with a first magnetic attraction portion, and the corresponding limiting portion is provided with a second magnetic attraction portion at the position corresponding to the first magnetic attraction portion, which magnetically engages with the first magnetic attraction portion. When the top block of the first top support assembly is flipped upward, the limiting portion approaches the inner side of the limiting portion so that the first magnetic attraction portion and the second magnetic attraction portion magnetically attract each other.

[0012] Furthermore, the top block of the second support assembly is in a position between an upward-tilted state to avoid material and a support state when not subjected to external force.

[0013] Furthermore, both the first lifting module and the second lifting module include a top plate and a lifting unit for driving the top plate to rise and fall. The top plate is also provided with a conveyor belt, and the upper end surface of the conveyor belt is not lower than the upper end surface of the corresponding top plate so as to be able to transport materials. The first top support assembly and the second top support assembly are respectively arranged on both sides of the width direction of the corresponding conveyor belt.

[0014] Furthermore, the first lifting module and the second lifting module also have protrusions extending outward at the positions corresponding to each of the top blocks to apply upward and downward forces.

[0015] The top support system of this utility model has at least the following beneficial effects: its structural design is simple. Through modular configuration of the first lifting module and top support component of the material distribution mechanism, and the second lifting module and top support component of the stacking mechanism, combined with the addition or removal of the top block flipping structure and magnetic suction part, it can realize the individual separation and feeding of stacked materials, and the individual stacking and receiving of processed materials. It supports individual use or side-by-side combination use. With the help of aluminum profiles to fix the size, it has strong versatility and can be adapted to plate materials of different specifications and materials without the need for separate design for specific materials. The electrical control system adopts a sequential control circuit, replacing the complex PLC control system, which not only reduces the equipment investment cost, but also reduces the difficulty of later debugging and maintenance. The core components are all conventional general-purpose parts, which are convenient to purchase and replace. At the same time, through the precise linkage of the mechanical structure (such as top block flipping, magnetic suction fixing, and coordinated action of the lifting module), the stable separation and stacking of materials are realized. The operation stability is high, and it can be quickly integrated into automated production lines (such as bag picking lines, cleaning lines, and feeding / receiving links of automated equipment), improving material flow efficiency and having a fast return cycle. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the top support system of this utility model;

[0018] Figure 2 This is a partial structural diagram of an embodiment of the top support system of this utility model. Figure 1 ;

[0019] Figure 3 This is a partial cross-sectional view of an embodiment of the top support system of this utility model;

[0020] Figure 4 for Figure 1 A schematic diagram of the local structure at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the first top support component in one embodiment of the top support system of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the first top block in one embodiment of the top support system of this utility model;

[0023] Figure 7This is a partial structural diagram of an embodiment of the top support system of this utility model. Figure 2 ;

[0024] Figure 8 for Figure 1 A schematic diagram of the local structure at point B;

[0025] Figure 9 This is a schematic diagram of the material structure in one embodiment of the top support system of this utility model.

[0026] The meanings of the labels in the attached diagram are as follows:

[0027] First conveyor belt 1;

[0028] Material distribution mechanism 2, first lifting module 21, first top plate 211, first lifting unit 212, first conveyor belt 213, first sensor 214, first top support assembly 22, first top block 221, support surface 2211, first restricted part 2212, first magnetic suction part 2213, second magnetic suction part 2214, first drive part 2215, second drive part 2216, first protrusion 2217, first limiting part 222, mounting bracket 23;

[0029] Second conveyor belt 3;

[0030] Stacking mechanism 4, second lifting module 41, second top plate 411, second lifting unit 412, second conveyor belt 413, second sensor 414, second top support assembly 42, second top block 421, second restricted part 4212, second protrusion 4217, second limiting part 422;

[0031] Material 5, flange 51;

[0032] Third conveyor belt 6. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] The following disclosure provides various embodiments or examples of different features for implementing this utility model. Specific examples of components and arrangements will be described below to simplify the utility model. Of course, these are merely examples and are not intended to limit the utility model. For example, in the following description, forming a first component above or on a second component may include embodiments where the first and second components are in direct contact, or embodiments where other components may be formed between the first and second components such that the first and second components are not in direct contact. Additionally, reference numerals and / or characters may be repeated in various instances of the utility model. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or configurations.

[0035] Furthermore, spatial relation terms such as "below," "under," "below," "above," and "above" may be used herein to readily describe the relationship between one element or component and another element (or component) or component (or component) as shown in the figure. In addition to the orientations shown in the figure, spatial relation terms will encompass various different orientations of the device in use or operation. The device may be positioned in other ways (rotated 90 degrees or in other orientations) and will be interpreted accordingly through the spatial relation descriptors used herein.

[0036] Furthermore, the technical parts described in this utility model and the appended claims are mainly the improved technical parts of this utility model, and do not limit the object protected by this utility model to only having these technical parts. Other known necessary components (structures and / or methods) and / or non-essential components of the protected object, other than the technical parts described in this utility model and the appended claims, are not included in this utility model and the appended claims because they do not involve the improvement scope of this utility model. However, this does not mean that the object protected by this utility model does not possess these known components.

[0037] The present invention will be further described below with reference to the accompanying drawings.

[0038] Please refer to Figure 1 The top-supporting system of this utility model is used to separate stacked materials 5 one by one for processing, and then stack the processed materials 5 one by one. The top-supporting system includes a first conveyor belt 1, a material distribution mechanism 2, a second conveyor belt 3, and a stacking mechanism 4. In use, the first conveyor belt 1 transports the stacked materials 5 to the material distribution mechanism 2. The material distribution mechanism 2 lifts the stacked materials 5 and separates them one by one to transport them to the second conveyor belt 3. The second conveyor belt 3 transports the individual materials 5 one by one to the stacking mechanism 4. The stacking mechanism then lifts several materials 5 to stack them.

[0039] Please refer to Figure 2 , Figure 3 and Figure 4 The material distribution mechanism 2 is located at the tail end of the first conveyor belt 1 to receive the material 5 conveyed by the first conveyor belt 1. The material distribution mechanism 2 includes a first lifting module 21 for lifting the material 5 and a first support assembly 22 disposed on both sides of the first lifting module 21. When the first lifting module 21 lifts up N stacked materials 5, the first support assembly 22 is used to lift the second to the Nth material 5 from bottom to top, leaving the first material 5 on the first lifting module 21.

[0040] The first lifting module 21 includes a first top plate 211 and a first lifting unit 212 for driving the first top plate 211 to rise and fall. The first lifting unit 212 is a cylinder, which is located below the first top plate 211 and extends upward along its output axis to connect with the lower end face of the first top plate 211. The cylinder can drive the first top plate 211 to move up and down. It should be understood that the first lifting unit 212 is not limited to the cylinder described in this embodiment, and those skilled in the art can also use other known technologies to achieve the effect of linear drive. A first conveyor belt 213 is provided on the first top plate 211. The conveying direction of the first conveyor belt 213 is the same as the conveying direction of the first conveyor belt 1, and the upper end face of the first conveyor belt 213 is not lower than the upper end face of the first top plate 211 to be able to convey material 5. The first top plate 211 is also provided with a first sensor 214 for sensing whether there is material 5 placed on the first top plate 211. The first conveyor belt 1, the first conveyor belt 213 and the first lifting unit 212 are all signal connected to the first sensor 214.

[0041] Please refer to Figure 5 and Figure 6The first top support assembly 22 includes a rotating shaft, a first top block 221 rotatably mounted on the rotating shaft, and a first limiting portion 222 for limiting the flipping angle of the first top block 221. The first top support assembly 22 is mounted on both sides of the first conveyor belt 213 via a mounting bracket 23. The mounting bracket 23 has a through slot extending along the width direction of the first conveyor belt 213 for mounting the first top block 221. The rotating shaft is horizontally mounted between the two side walls of the through slot, and the first top block 221 is rotatably mounted on the rotating shaft so that it can flip up and down relative to the first top plate 211. In terms of shape, the first top block 221 has an upwardly and inwardly inclined first slope and a downwardly and inwardly inclined second slope, the first slope and the second slope are integral, and the second slope is located at the lower end of the first slope. Such a first top block 221 has a top support portion for supporting the material 5 and a drive portion for driving the top support portion. The drive portion is used to drive the top support portion to flip up or down when subjected to an upward or downward force to avoid the material 5 or support the material 5.

[0042] The top support has a support surface 2211 for supporting material 5 and a first limiting portion 2212 formed on the outer side of the support surface 2211. The portion of the outer side of the first inclined portion facing the material 5 is configured as the support surface 2211. When the first top block 221 is flipped up, the support surface 2211 tilts upward and inward to avoid the material 5; when the first top block 221 is flipped down, the support surface 2211 is horizontal to support the material 5. The portion of the outer side of the first inclined portion away from the material 5 is configured as the first limiting portion 2212. The first limiting portion 2212 has a predetermined angle with the support surface 2211. When the support surface 2211 is in a horizontal support state, the first limiting portion 2212 tilts upward and inward. The first limiting portion 222 is horizontally mounted on the side of the mounting bracket 23 away from the first top plate 211, and the first limiting portion 222 is located above the rotating shaft. When the support surface 2211 is in a horizontal support state, the first restricted portion 2212 abuts against the lower side of the first limiting portion 222 to prevent the first top block 221 from continuing to flip downwards, thereby keeping the top support portion in a support state. A first magnetic attraction portion 2213 is provided on the inner side of the first limiting portion 222 (that is, the side of the first limiting portion 222 facing the first top plate 211), and a second magnetic attraction portion 2214 is provided on the first restricted portion 2212 at a position corresponding to the first magnetic attraction portion 2213. The first magnetic attraction portion 2213 can be magnetically attracted to the second magnetic attraction portion 2214, so that when the first restricted portion 2212 is close to or attached to the inner side of the first limiting portion 222 due to the upward flip of the top support portion, the position of the first restricted portion 2212 can be fixed relative to the first limiting portion 222. In this embodiment, the first magnetic attraction part 2213 is a magnet and the second magnetic attraction part 2214 is a metal sheet. In other embodiments, the first magnetic attraction part 2213 can also be a metal sheet and the second magnetic attraction part 2214 can be a magnet, as long as the magnetic attraction and fixation of the two can be achieved.

[0043] The driving unit includes a first driving unit 2215 and a second driving unit 2216. The first driving unit 2215 is used to flip the top support upwards to avoid the material 5 when subjected to an upward force, and the second driving unit 2216 is used to flip the top support downwards to allow it to enter the bottom of the material 5 to support the material 5 when subjected to a downward force. For example, the inner side of the first inclined portion is upward and inwardly inclined to form the first driving unit 2215, and the inner side of the second inclined portion is downward and inwardly inclined to form the second driving unit 2216. The lower end face of the first top plate 211 has a first protrusion 2217 protruding in the direction of the corresponding first top block 221 at the position of each first top block 221. The first protrusion 2217 is used to move up and down following the movement of the first top plate 211, thereby applying an upward or downward force to the first top block 221.

[0044] The second conveyor belt 3 is located on the side of the material distribution mechanism 2 away from the first conveyor belt 1, and the conveying direction of the second conveyor belt 3 is the same as that of the first conveyor belt 1. The second conveyor belt 3 is lower than the height of the first conveyor belt 1.

[0045] The stacking mechanism 4 is located at the tail end of the second conveyor belt 3 to receive the material 5 conveyed by the second conveyor belt 3. The stacking mechanism 4 includes a second lifting module 41 and a second supporting assembly 42 disposed on both sides of the second lifting module 41. The second lifting module 41 is used to lift the material 5 conveyed by the second conveyor belt 3 one by one, and the second supporting assembly 42 is used to support the material 5 lifted by the second lifting module 41 each time to stack it from top to bottom.

[0046] Please refer to Figure 7 and Figure 8The second lifting module 41 has the same structure and operating principle as the first lifting module 21. The only difference between the second support assembly 42 and the first support assembly 22 is that the second limiting part 422 and the second restricted part 4212 of the second support assembly 42 do not have a first magnetic attraction part 2213 and a second magnetic attraction part 2214 that magnetically attract each other. When the second top block 421 is not subjected to external force, the second top block 421 is in a position between an upward flipped state to avoid the material 5 and a supporting state under its own gravity. The second top plate 411 of the second support assembly 42 is provided with a second sensor 414. The second conveyor belt 3, the second conveyor belt 413 of the second support assembly 42, and the second lifting unit 412 are all connected to the second sensor 414. The structural settings of the second lifting module 41 and the second support assembly 42 are the same as those of the first lifting module 21 and the first support assembly 22, and will not be described in detail here. It should be noted that the same components in the stacking mechanism 4 and the distributing mechanism 2 are distinguished by "first" and "second" (e.g., the first top plate 211 in the distributing mechanism 2, and the corresponding structure in the stacking mechanism 4 is the second top plate 411).

[0047] One embodiment of the top support system of this utility model operates as follows: It should be noted that the material 5 is disc-shaped, and the lower end surface of the material 5 extends horizontally outward to form a protruding edge 51. Please refer to [the relevant documentation] for details. Figure 9In its initial state, the first top plate 211 is located at its highest point, meaning the first top block 221 is flipped upwards to avoid the material 5. During use, the first conveyor belt 1, in conjunction with the first conveyor belt 213, transports the stacked material 5 to the first top plate 211 of the distributing mechanism 2. The first sensor 214 detects the material 5 on the first top plate 211 and sends a signal to the first lifting unit 212. The first lifting unit 212 moves the first top plate 211 downwards, causing the first protrusion 2217 to also move downwards. After moving a certain distance, the first protrusion 2217 contacts the second drive unit 2216 and cooperates with it to flip the first top block 221 downwards. During the travel before the first protrusion 2217 contacts the second drive unit 2216, the protruding edge 51 of the lowest material 5 has already moved to a position below the innermost end of the top support. When the first top block 221 is tilted down to its lowest position, the innermost end of the top support portion is located above the protruding edge 51 of the lowest material 5 and below the protruding edge 51 of the second material 5 from bottom to top. The first top plate 211 continues to move down, and the protruding edge 51 of the second material 5 from bottom to top is supported by the first top block 221. The lowest material 5 then moves down with the first top plate 211 until it is on the same plane as the second conveyor belt 3. Then, the first conveyor belt 213 conveys the material 5 onto the second conveyor belt 3.

[0048] At this time, the first top plate 211 moves upward, lifting the remaining material 5 and causing the first top block 221 to flip upward. The material distribution mechanism 2 returns to the initial state described above and repeats the above process to transport the stacked material 5 one by one to the second conveyor belt 3.

[0049] Inspection stations can be set on both sides of the second conveyor belt 3.

[0050] Subsequently, material 5 is conveyed to the stacking mechanism 4 by the second conveyor belt 3. Initially, the second top plate 411 is at its lowest point, meaning the second top block 421 is tilted downwards. In this state, the second conveyor belt 3, in conjunction with the second conveyor belt 413, conveys material 5 onto the second top plate 411. The second sensor 414 detects material 5 on the second top plate 411 and immediately activates the second lifting unit 412 to lift the second top plate 411. The second top plate 411, through the second protrusion 4217, causes the second top block 421 to tilt upwards, moving material 5 to a position higher than the second top block 421. It should be noted that the second protrusion 4217 is not higher than the second top block 421. Then, the second top plate 411 is moved downwards. As the second protrusion 4217 moves downwards with the second top plate 411, the second top block 421, due to its own weight, flips down to a position between its flipped-up state to avoid the material 5 and its supporting state. The distance between the innermost ends of the top supports of the two opposing second top blocks 421 is less than the width of the protruding edge 51. Thus, as the second top plate 411 continues to move downwards, the material 5 is placed on the upper surface of the second top block 421.

[0051] At this time, the second conveyor belt 3 continues to transport the next material 5 to the second top plate 411, and the material distribution mechanism 2 repeats the above steps to stack several materials 5 one by one. A third conveyor belt 6 can also be set at the rear end of the stacking mechanism 4 to cooperate with the second conveyor belt 413 to transport the stacked materials away.

[0052] Compared with existing technologies, the top support system of this utility model has a simple structural design. Through modular configurations such as the first lifting module and top support component of the material distribution mechanism, and the second lifting module and top support component of the stacking mechanism, combined with the addition or removal of the top block flipping structure and magnetic suction part, it can realize the individual separation and feeding of stacked materials, and the individual stacking and collecting of processed materials. It can be used alone or in combination side by side. With the fixed size of aluminum profile, it has strong versatility and can be adapted to plate materials of different specifications and materials without the need for separate design for specific materials. The electrical control system adopts a sequential control circuit, replacing the complex PLC control system, which not only reduces the equipment investment cost, but also reduces the difficulty of later debugging and maintenance. The core components are all conventional general-purpose parts, which are convenient to purchase and replace. At the same time, through the precise linkage of the mechanical structure (such as top block flipping, magnetic fixing, and coordinated action of the lifting module), stable separation and stacking of materials are achieved, with high operational stability. It can be quickly integrated into automated production lines (such as bag picking lines, cleaning lines, and feeding / collecting links of automated equipment), improving material flow efficiency and providing a fast return cycle.

[0053] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A top-support system for separating stacked materials one by one for processing, and then stacking the processed materials one by one, characterized in that: It includes a first conveyor belt, a material distribution mechanism, a second conveyor belt, and a material stacking mechanism. In use, the first conveyor belt transports the stacked materials to the material distribution mechanism, the material distribution mechanism lifts up the stacked materials and separates them one by one to transport them to the second conveyor belt, the second conveyor belt transports the individual materials one by one to the material stacking mechanism, and the material stacking mechanism then lifts up several materials to stack them.

2. The top support system as described in claim 1, characterized in that: The material distribution mechanism includes a first lifting module for lifting materials and a first support assembly disposed on both sides of the first lifting module. When the first lifting module lifts up N stacked materials, the first support assembly is used to lift the second to Nth materials from bottom to top and leave the first material on the first lifting module. The stacking mechanism includes a second lifting module and a second support assembly disposed on both sides of the second lifting module. The second lifting module is used to lift the materials conveyed by the second conveyor belt one by one, and the second support assembly is used to support the materials lifted by the second lifting module each time to stack them from top to bottom.

3. The top support system as described in claim 2, characterized in that: Both the first and second top support assemblies include a rotating shaft and a top block rotatably mounted on the rotating shaft. The top block is used to flip upward when subjected to an upward force to avoid the material and to flip downward when subjected to a downward force to enter the bottom of the material to support it.

4. The top support system as described in claim 3, characterized in that: Both the first top support assembly and the second top support assembly also include a limiting part, which is used to restrict the top block from flipping downward when the top block is in the supported state.

5. The top support system as described in claim 4, characterized in that: The top block has a top support portion for supporting materials and a driving portion, the driving portion being used to drive the top support portion to flip up or down to avoid or support the materials when subjected to an upward or downward force.

6. The top support system as described in claim 5, characterized in that: The top support has a support surface for supporting materials and a limiting portion formed on the outside of the support surface. The limiting portion is disposed on the upper side of the top support at a position corresponding to the limiting portion. When the top support is in a horizontal support state, the limiting portion abuts against the lower side of the limiting portion to keep the top support in the support state.

7. The top support system as described in claim 6, characterized in that: The inner side of the limiting part of the first top support assembly is provided with a first magnetic attraction part, and the corresponding limiting part is provided with a second magnetic attraction part at the position corresponding to the first magnetic attraction part, which magnetically engages with the first magnetic attraction part. When the top block of the first top support assembly is flipped upward, the limiting part moves close to the inner side of the limiting part so that the first magnetic attraction part and the second magnetic attraction part magnetically attract each other.

8. The top support system as described in claim 6, characterized in that: The top block of the second top support assembly is in a position between an upward-tilted state to avoid material and a support state when not subjected to external force.

9. The top support system as described in claim 3, characterized in that: Both the first lifting module and the second lifting module include a top plate and a lifting unit for driving the top plate to rise and fall. The top plate is also provided with a conveyor belt, and the upper end surface of the conveyor belt is not lower than the upper end surface of the corresponding top plate so as to be able to transport materials. The first top support assembly and the second top support assembly are respectively arranged on both sides of the width direction of the corresponding conveyor belt.

10. The top support system as described in claim 9, characterized in that: The first lifting module and the second lifting module also have protrusions extending outward at the positions corresponding to each of the top blocks to apply upward and downward forces.

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