Material conveying reversing platform and conveying device

Abstract

The utility model discloses a material conveying and reversing platform and a conveying device. The material conveying and reversing platform comprises a platform base, a material conveying device and a material conveying device, the rotating platform is rotationally arranged in the containing hole and comprises a rotating support with the outer ring arranged on the inner wall of the containing hole and a roller assembly arranged on the inner ring of the rotating support, the roller assembly comprises a plurality of rollers, and the highest faces of the rollers are higher than the end face of the platform base body; the access control assembly is arranged on the platform base body and located on the periphery of the containing hole, the access control assembly comprises a baffle vertically stretching out and drawing back along the platform base body, and the baffle has an extending position enabling the high point of the baffle to be higher than the highest face of the roller and has a retracting position enabling the high point of the baffle to be lower than the highest face of the roller. The problem of reversing of materials between roller conveying lines in a complex application scene is solved, and meanwhile, the problem of continuous conveying of the materials in the reversing process is solved.

Description

Technical Field

[0001] This application relates to the technical field of conveying equipment, and particularly relates to a material conveying reversing platform and a conveying device. Background Art

[0002] Currently, in the coal sampling, preparation, and analysis industry, after the coal sample is crushed and reduced in the sampling system, it is encapsulated in a coal sample bucket through an encapsulation system, and then the coal sample bucket containing raw coal is conveyed to the sample preparation system through a roller conveyor line, a chain conveyor line, a belt, etc.; the empty coal sample bucket after sample preparation is also conveyed to the sampling system through a roller conveyor line, a chain conveyor line, a belt, etc. During the conveying process of the coal sample bucket, according to functional requirements, there will be various reversing conveying situations. Currently, in the industry, there are various designs for the reversing platform, mainly including the following several structures:

[0003] 1. Right-angle reversing mechanism. Please refer to the attached drawings of the specification Figure 1 , using two reverse roller lines 01, the right-angle reversing of the sample bucket in two directions can be realized, and the continuous reversing of the sample bucket can be realized. The structure is simple and reliable; the disadvantage of the scheme is that it can only reverse in two directions and cannot meet multi-directional reversing, so the applicable situation is limited.

[0004] 2. Lifting and transferring mechanism. Please refer to the attached drawings of the specification Figure 2 , including a lifting and transferring mechanism 02 and a roller line 01. The lifting and transferring mechanism 02 is installed in the gap of the roller line 01, and the running direction of the sample bucket is changed by the rising and retracting of the lifting and transferring mechanism 02; when reversing with this scheme, the sample buckets can only be transferred one by one, and the continuous transfer of the sample buckets cannot be realized, and the reversing efficiency of the sample buckets is low.

[0005] 3. DWS (Intelligent Material Equipment) reversing mechanism. Please refer to the attached drawings of the specification Figure 3 , including independently arranged reversing wheels 03 distributed in an array. Each reversing wheel 03 is driven by an independent motor, or several groups of reversing wheels 03 share a group of motor controls. When the material is conveyed and reversed, multiple groups of motors cooperate with each other to control the reversing of the independent reversing wheels 03, and the reversing of the material during transportation is realized by driving the rollers in the independent reversing wheels 03 by the motors. This scheme can realize the multi-directional reversing of materials and can also realize the continuous reversing of materials. However, this scheme has a complex structure, high cost, difficult maintenance, and is suitable for the transfer of packages or boxed materials in the logistics industry, and is not suitable for the continuous multi-directional reversing conveying of coal sample buckets.

[0006] Therefore, in view of the above technical problems, how to solve the reversing problem between roller conveyor lines in complex application scenarios is a technical problem that those skilled in the art need to solve. Summary of the Utility Model

[0007] The purpose of the present application is to provide a material conveying reversing platform, which solves the problem of reversing between roller conveying lines in complex application scenarios and realizes the continuous conveying of materials during the reversing process.

[0008] To achieve the above object, the present application provides a material conveying reversing platform, including:

[0009] A platform base body, in which a receiving hole is formed;

[0010] A rotating platform, rotatably arranged in the receiving hole, including a slewing bearing with an outer ring disposed on the inner wall of the receiving hole and a roller assembly disposed on the inner ring of the slewing bearing. The roller assembly includes a plurality of rollers, and the highest surface of the rollers is higher than the end surface of the platform base body;

[0011] An access control assembly, arranged on the platform base body and located outside the receiving hole, including a baffle that telescopically moves vertically along the platform base body. The baffle has an extended position where the highest point of the baffle is higher than the highest surface of the rollers, and a retracted position where the highest point of the baffle is lower than the highest surface of the rollers.

[0012] Preferably, the rotating platform further includes a first driving member arranged on the platform base body. A first gear is provided on the output shaft of the first driving member, and a second gear is provided on the inner ring of the slewing bearing. The first gear meshes with the second gear to drive the roller assembly to rotate with the inner ring of the slewing bearing.

[0013] Preferably, the highest surfaces of the plurality of rollers are in the same plane, and the conveying directions of the plurality of rollers are the same. The plurality of rollers are synchronously driven by a synchronous belt. The plane where the synchronous belt is located is lower than the highest surface of the rollers, and at least one of the rollers is a motorized roller.

[0014] Preferably, the access control assembly further includes a second driving member arranged on the platform base body. The output shaft of the second driving member is connected to the baffle to drive the baffle to telescopically move.

[0015] Preferably, the baffle is a U-shaped plate with an open upper side. A transition roller is rotatably arranged on the platform base body corresponding to the U-shaped groove of the baffle. The highest surface of the transition roller is the same as the highest surface of the rollers, and the transition roller is spaced from the baffle.

[0016] Preferably, a sensor assembly is further included. The sensor assembly includes a position sensor arranged on the platform base body and a displacement sensor arranged on the second driving member. The position sensor cooperates with the inner ring of the slewing bearing to detect the rotation amplitude of the roller assembly, and the displacement sensor is used to detect the telescopic distance of the output shaft of the second driving member to determine the telescopic position of the baffle.

[0017] A conveying device, comprising:

[0018] A reversing platform, which is the material conveying reversing platform described above;

[0019] Conveyor lines, and a plurality of the conveyor lines are distributed outside the reversing platform to convey materials to the reversing platform or output materials from the reversing platform, and at least one of the conveyor lines corresponds to the position of the access control component on the reversing platform.

[0020] Preferably, the number of the reversing platforms is multiple, and material transfer between the multiple reversing platforms is realized through the conveyor lines. Each reversing platform includes at least one rotating platform, and a plurality of access control components are evenly distributed on the outer periphery of the rotating platform.

[0021] Preferably, the number of the rotating platforms on each reversing platform is one, and a plurality of the access control components are distributed on the outer periphery of the rotating platform. The conveyor lines are correspondingly arranged on the side where each access control component is located on each reversing platform, and are connected to another reversing platform through the conveyor lines.

[0022] Preferably, the number of the rotating platforms on each reversing platform is multiple, and the multiple rotating platforms are arranged in a rectangular array. A plurality of the access control components are distributed on the outer periphery of each rotating platform, and among the plurality of access control components, the conveyor lines are correspondingly arranged on the side where the outermost access control component is located, and are connected to another reversing platform through the conveyor lines.

[0023] Compared with the above background art, in this application, the rotation of the roller assembly in the rotating platform provides power for the reversing and advancement of materials. Through the telescopic movement of the access control component, the blocking and passing of materials are realized. At the same time, when the access control component extends, it can also play a certain guiding role for the materials, and under the condition of coordinated transfer of the roller assembly, the reversing operation of materials in any direction is realized. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0025] Figure 1 It is a schematic structural diagram of a right-angle reversing mechanism in the prior art;

[0026] Figure 2 It is a schematic structural diagram of a lifting and transplanting mechanism in the prior art;

[0027] Figure 3 It is a schematic structural diagram of the DWS commutation mechanism in the prior art;

[0028] Figure 4 It is a top view of the material conveying commutation platform provided by the embodiment of the present application;

[0029] Figure 5 It is a schematic internal structure diagram of the material conveying commutation platform provided by the embodiment of the present application;

[0030] Figure 6 It is a bottom view of the material conveying commutation platform provided by the embodiment of the present application;

[0031] Figure 7 It is a schematic structural diagram of the first conveying device provided by the embodiment of the present application;

[0032] Figure 8 It is a schematic structural diagram of the second material conveying commutation platform provided by the embodiment of the present application;

[0033] Figure 9 It is a schematic structural diagram of the second conveying device provided by the embodiment of the present application;

[0034] Figure 10 It is a schematic structural diagram of the third material conveying commutation platform provided by the embodiment of the present application;

[0035] Figure 11 It is a schematic structural diagram of the third conveying device provided by the embodiment of the present application.

[0036] In the figure:

[0037] 01 - roller line; 02 - lifting and transferring mechanism; 03 - commutation wheel;

[0038] 1 - commutation platform; 2 - conveying line;

[0039] 10 - rotating platform; 20 - access control component; 30 - platform seat body;

[0040] 101 - first driving member; 102 - slewing bearing; 103 - roller; 104 - synchronous belt; 105 - position sensor;

[0041] 201 - second driving member; 202 - baffle; 203 - transition roller; 204 - displacement sensor. Detailed implementation manners

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0043] It should be noted that in this embodiment, the orientation or positional relationship indicated by "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application 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. Therefore, it should not be construed as a limitation to the present application. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0044] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] As Figure 4 shown, in this embodiment, a material conveying reversing platform is provided. The platform includes a platform base 30. The platform base 30 serves as the main load-bearing component, and a receiving hole is provided in the platform component. Generally speaking, the upper end surface of the platform base 30 is a flat plane to prevent interference between the material and the platform base 30 when the material passes through the platform base 30, which affects the conveying efficiency.

[0046] The rotating platform 10 is arranged in the receiving hole. The rotating platform 10 includes a slewing bearing 102 and a roller assembly. The outer ring of the slewing bearing 102 is fixedly arranged on the inner wall of the receiving hole, and at the same time, the roller assembly is arranged on the inner ring of the slewing bearing 102. The roller assembly includes a plurality of rollers 103. Both ends of the roller 103 are rotatably arranged on the inner ring of the slewing bearing, and the highest surface of the roller 103 is higher than the upper end surface of the platform base 30. Thus, when the material reaches the position of the platform base 30, it can be supported and conveyed by the roller 103. The highest surface of the roller 103 refers to the conveying plane of the roller.

[0047] Please refer to Figure 4 and Figure 5, the access control component 20 is provided on the platform base 30 and located outside the accommodation hole. The access control component 20 includes a baffle 202 that telescopically moves vertically along the platform base 30. It can be predicted that since the baffle 202 needs to be telescopically arranged, corresponding holes can be opened on the platform base 30 so that the baffle 202 can extend and retract smoothly. During the extension process of the baffle 202, there is an extended position where the highest point of the baffle 202 is higher than the highest surface of the roller 103, thereby blocking and guiding the material; during the retraction process of the baffle 202, there is a retracted position where the highest point of the baffle 202 is lower than the highest surface of the roller 103, thereby realizing the transfer of the material.

[0048] On this basis, the transfer direction of the material passing through the commutation platform 1 can be changed by adjusting the rotation angle of the rotary platform 10. At the same time, when the material reaches the roller 103, under the power of the roller 103 and the guiding action of the baffle 202, the material can be conveyed along the preset direction. For example, for a right-angle commutation, when the material is about to enter the commutation platform 1, the baffle 202 on the corresponding side of the commutation platform 1 retracts, so that the material can smoothly enter the commutation platform 1 and reach the position of the roller 103; at this time, the baffle 202 on the opposite side is in the extended state, so the extended baffle 202 can be used to limit the material, and after the rotary platform 10 rotates to an appropriate angle, the roller 103 uses its own power to make the material move along the conveying direction of the roller 103 or along the abutting surface of the extended baffle 202, and finally realizes a right-angle commutation.

[0049] Combining the above embodiments, the present application provides commutation and transfer for the material through the rotation of the roller assembly in the rotary platform 10, uses the self-power of the roller 103 as the power to drive the material forward, and realizes the blocking and passage of the material through the telescopic movement of the access control component 20. At the same time, when the access control component 20 extends, it can also play a certain guiding role for the material, and under the condition of the combined transfer of the roller assembly, realizes the commutation operation of the material in any direction.

[0050] Please refer to Figure 5 , the rotary platform 10 further includes a first driving member 101 provided on the platform base 30. It can be seen that the first driving member 101 is provided inside the platform base 30 and is fixedly connected to the platform base 30 through a support structure. A first gear is provided on the output shaft of the first driving member 101, and a second gear is provided on the inner ring of the slewing support 102. The first gear meshes with the second gear. The first driving member 101 can be a stepping motor or a servo motor with high precision, so as to drive the inner ring of the slewing support 102 to rotate, and then drive the roller assembly to rotate around the axis of the slewing support 102.

[0051] It should be noted that to ensure the stable transportation of materials on the drum assembly, the highest surfaces of multiple drums 103 in the drum assembly should be in the same plane, and the transportation directions of multiple drums 103 should be consistent. During the rotation of multiple drums 103 with the inner ring of the slewing bearing 102, multiple drums 103 still maintain the same transportation direction.

[0052] Please refer to Figure 5 and Figure 6 , multiple drums 103 are synchronously driven by a synchronous belt 104. The plane where the synchronous belt 104 is located is lower than the highest surface of the drum 103. Specifically, the synchronous belt 104 can be embedded inside the drum 103, and its top surface is lower than the highest surface of the drum 103, so as to avoid interference between the synchronous belt 104 during movement and the bottom of the material. A synchronous belt 104 tensioning mechanism can also be provided in the middle of the drum 103 to facilitate the installation of the synchronous belt 104 and ensure the normal operation of the synchronous belt 104. The specific structure and setting method of the tensioning mechanism can refer to the prior art and will not be elaborated here.

[0053] Among multiple drums 103, at least one drum 103 is an electric drum. The electric drum can be used as the power driving part of the drum 103, and the driving force is applied to each drum 103 through the synchronous belt 104, so as to provide power for the material to move forward on the drum assembly.

[0054] Regarding the rotation mode of the drum assembly as a whole relative to the platform base 30 and the rotation mode of the drum 103 itself, including but not limited to the slewing bearing 102 drive and the synchronous belt 104 drive given above, it can also be in the form of sprockets and chains, gears, etc., which all fall within the protection scope of this application and will not be elaborated one by one here.

[0055] Please refer to Figure 5 , the access control assembly 20 further includes a second driving part 201 arranged on the platform base 30. The output shaft of the second driving part 201 is connected to the baffle 202, so as to drive the baffle 202 to perform telescopic actions. Specifically, the second driving part 201 can be in other forms such as a cylinder, an electric cylinder, a hydraulic cylinder, etc. When the output shaft 201 of the second driving part 201 extends, the running direction will be blocked by the baffle 202, and the material cannot pass through; when the cylinder retracts, the baffle 202 is lower than the highest surface of the drum 103, and the material can pass through unobstructed above the access control assembly 20.

[0056] Furthermore, the baffle 202 is a U-shaped plate structure with an upper opening. A transition roller 203 is rotatably provided on the platform base 30 corresponding to the U-shaped groove of the baffle 202. The highest surface of the transition roller 203 is in the same plane as the highest surface of the roller 103. Considering that there may be an unsupported area before the material abuts against the roller 103, and if this area is too large, the material may deviate from the original conveying path at this point. Therefore, a transition roller 203 is added as a transition support to prevent the material from detaching and falling.

[0057] It should be noted that since the transition roller 203 corresponds to the U-shaped groove of the baffle 202, when the U-shaped groove of the baffle 202 has a sufficient depth and the transition roller 203 is spaced from the baffle 202, the tops of the two U-shaped sides of the baffle 202 can extend above the transition roller 203, thus wrapping the transition roller 203 within the baffle 202. When the baffle 202 wraps the transition roller 203, the highest point of the baffle 202 is naturally higher than the highest surfaces of the transition roller 203 and the roller 103, which can play a role in blocking and guiding the material and close the transition function of the transition roller 203; when the baffle 202 retracts, the transition roller 203 will be exposed on the outside, thus realizing its transition function.

[0058] In addition, in some embodiments, a sensor assembly is further included. Please refer to Figure 5 and Figure 6 , the sensor assembly includes a position sensor 105 provided on the platform base 30 and a displacement sensor 204 provided on the second driving member 201. The position sensor 105 can cooperate with the inner ring of the slewing bearing 102 to detect the rotation amplitude of the roller assembly, that is, the position sensor 105 is a position home switch. There is an initial position on the slewing bearing 102 corresponding to the position sensor 105 to provide an initial position judgment. Through the cooperation of the position sensor 105 and the first driving member 101, the rotating platform 10 can be accurately rotated to any desired angle, so that the commutation platform 1 can be commutated in any direction. The displacement sensor 204 is installed on the second driving member 201 or the platform base 30, and can detect the telescopic distance of the output shaft of the second driving member 201, so as to judge the telescopic position of the baffle 202 and ensure the stable and reliable operation of the baffle 202 in place; specifically, it can provide a signal when the output shaft of the second driving member 201 reaches the upper and lower limits.

[0059] The present application also provides a conveying device, which includes the above-mentioned material conveying commutation platform and a plurality of conveying lines 2 distributed outside the commutation platform 1. The conveying lines 2 should be arranged as close as possible to the commutation platform 1 to smoothly convey the material to the commutation platform 1 or output the material from the commutation platform 1 smoothly. And at least one conveying line 2 corresponds to the position where the access control component 20 on the commutation platform 1 is located, so as to play a role in blocking or guiding.

[0060] In this conveying device, the number of reversing platforms 1 is multiple. Please refer to Figure 7 , Figure 9 and Figure 11 . Material transfer is realized between multiple reversing platforms 1 through a conveying line 2. Each reversing platform 1 includes at least one rotating platform 10, and a plurality of access control components 20 are evenly distributed on the outer periphery of the rotating platform 10 to block and guide the material. It should be noted that Figure 7 , Figure 9 and Figure 11 only shows the case where the conveying line 2 makes a right-angle reversal, and it is still applicable to the docking cases of other angles. Any solution that changes the layout angle falls within the protection scope of this application.

[0061] Specifically, the reversing platform 1 can be in the form of a single-reversing platform in Figure 4 , that is, the number of rotating platforms 10 on each reversing platform 1 is one, and a plurality of access control components 20 are distributed on the outer periphery of the rotating platform 10. The conveying line 2 is correspondingly arranged on one side where each access control component 20 is located on the reversing platform 1, and is docked with other reversing platforms 1 through the conveying line 2. Please refer to Figure 7 . Taking four reversing platforms 1 as an example, four access control components 20 are evenly distributed on the outer periphery of the rotating platform 10 on the reversing platform 1. Then, four conveying lines 2 are correspondingly distributed outside the reversing platform 1, and some of the conveying lines 2 can be shared with other reversing platforms 1. When the material needs to be conveyed from the Figure 7 position a to position b, the two corresponding access control components 20 in this direction can be retracted, that is, the baffle 202 is retracted. At this time, the conveying channel between position a and position b is opened, so as to realize the continuous conveying of the material between position a and position b. When the material needs to be conveyed from the Figure 7 position c to position d, the access control component 20 corresponding to position c and the access control component 20 corresponding to position d can be retracted, and the rotating platform 10 is adjusted to rotate 45° to the left, so that the material is conveyed to position d on the rotating platform 10 and smoothly enters position d under the guiding action of the other two protruding access control components 20.

[0062] The reversing platform 1 can also be a multi-reversing platform, such as the double-reversing platform shown in Figure 8 and the four-reversing platform shown in Figure 10 etc. That is, the number of rotating platforms 10 on each reversing platform 1 is multiple, and the multiple rotating platforms 10 are arranged in a rectangular array. Please refer to Figure 9 and Figure 11, a plurality of access control components 20 are distributed on the outer periphery of each rotating platform 10. Among the plurality of access control components 20, a conveyor line 2 is correspondingly arranged on the side where the outermost access control component 20 is located. As for the principles of multi-direction changing platforms such as double-direction changing platforms and four-direction changing platforms, they are similar to the principle of single-direction changing platforms. By adjusting the extension and retraction of different access control components 20 and adjusting the rotation angle of the rotating platform 10, the material can be changed in direction and run between different conveyor lines 2, so as to realize the multi-direction changing function of the material. The multi-directions here include any direction in the horizontal plane.

[0063] In addition, when the material transfer requirement is initiated, the conveyor line is first clarified. After the operation instruction is issued, the corresponding front-end and rear-end conveyor lines 2 and the rotating platform 10 start to operate under the drive of the power module. At the same time, the rotating platform 10 rotates to the corresponding position and stops according to the line requirement, and feeds back the in-place signal. When the material detection sensor on the front-end conveyor line 2 senses the material, the two corresponding access control components 20 on the changing platform 1 will retract to open the conveying channel, so as to ensure that the material continuously changes direction and is conveyed to the rear-end conveyor line 2 through the changing platform 1. When there is no signal sensed by the material detection sensors on both the front-end and rear-end conveyor lines 2, it means that the material conveying task is completed. The rotating platform 10 rotates to the initial position, and the access control component 20 returns to the initial state (which can be one of the extended or retracted states) to wait for the initiation of the next changing instruction.

[0064] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0065] In this article, specific examples are used to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A material conveying reversing platform, characterized in that: include: A platform base body (30), wherein a receiving hole is formed on the platform base body (30); A rotating platform (10) is rotatably disposed in the receiving hole, comprising a slewing support (102) whose outer ring is disposed on the inner wall of the receiving hole and a roller assembly disposed on the inner ring of the slewing support (102), wherein the roller assembly comprises a plurality of rollers (103), and the highest surface of the rollers (103) is higher than the end surface of the platform seat (30); The door control assembly (20) is arranged on the platform base (30) and is located at the periphery of the accommodating hole, and comprises a baffle (202) that is vertically retracted along the platform base (30), wherein the baffle (202) has an extended position so that the highest point of the baffle (202) is higher than the highest surface of the roller (103), and has a retracted position so that the highest point of the baffle (202) is lower than the highest surface of the roller (103).

2. The material conveying reversing platform according to claim 1, characterized in that: The rotating platform (10) further comprises a first driving member (101) arranged on the platform base (30); an output shaft of the first driving member (101) is provided with a first gear; an inner ring of the slewing support (102) is provided with a second gear; the first gear meshes with the second gear to drive the roller assembly to rotate along with the inner ring of the slewing support (102).

3. The material conveying reversing platform according to claim 1, characterized in that: The highest surfaces of the plurality of rollers (103) are located in the same plane, and the conveying directions of the plurality of rollers (103) are consistent. The plurality of rollers (103) are synchronously driven by a synchronous belt (104). The plane where the synchronous belt (104) is located is lower than the highest surface of the rollers (103), and at least one of the rollers (103) is a motorized roller.

4. The material conveying reversing platform according to claim 1, characterized in that: The door control assembly (20) further comprises a second driving member (201) arranged on the platform base (30), wherein an output shaft of the second driving member (201) is connected to the baffle (202) to drive the baffle (202) to extend and retract.

5. The material conveying reversing platform according to claim 1, characterized in that: The baffle (202) is a U-shaped plate with an opening on the upper side. A transition roller (203) is rotatably provided on the platform seat (30) and corresponding to the U-shaped groove of the baffle (202). The highest surface of the transition roller (203) is the same as the highest surface of the roller (103). The transition roller (203) and the baffle (202) are spaced apart.

6. The material conveying reversing platform according to claim 4, characterized in that: The device further comprises a sensor assembly, the sensor assembly comprising a position sensor (105) arranged on the platform base (30) and a displacement sensor (204) arranged on the second driving member (201), the position sensor (105) cooperating with the inner ring of the slewing support (102) to detect the rotation amplitude of the roller assembly, and the displacement sensor (204) is used to detect the telescopic distance of the output shaft of the second driving member (201) to determine the telescopic position of the baffle (202).

7. A conveying device, characterized in that: include: The reversing platform (1) is the material conveying reversing platform according to any one of claims 1 to 6; A conveyor line (2), wherein a plurality of the conveyor lines (2) are distributed outside the reversing platform (1) to convey materials to the reversing platform (1) or to output materials from the reversing platform (1), and at least one of the conveyor lines (2) corresponds to the position of the door access control component (20) on the reversing platform (1).

8. The conveying device according to claim 7, characterized in that There are a plurality of the reversing platforms (1), and material transfer is achieved between the plurality of the reversing platforms (1) via the conveyor line (2). Each of the reversing platforms (1) comprises at least one rotating platform (10), and a plurality of access control components (20) are evenly distributed on the periphery of the rotating platform (10).

9. The conveying device according to claim 8, characterized in that The number of the rotating platform (10) on each of the reversing platforms (1) is one, and a plurality of the door control components (20) are distributed on the periphery of the rotating platform (10). The reversing platform (1) is provided with a conveying line (2) corresponding to one side where each door control component (20) is located, and is connected to another reversing platform (1) via the conveying line (2).

10. The conveying device according to claim 8, characterized in that The number of the rotating platforms (10) on each of the reversing platforms (1) is multiple, and the multiple rotating platforms (10) are arranged in a rectangular array, and multiple access control components (20) are distributed on the periphery of each of the rotating platforms (10), and among the multiple access control components (20), the conveyor line (2) is correspondingly arranged on the side where the access control component (20) at the outermost side is located, and is connected to another reversing platform (1) via the conveyor line (2).

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