CN217436902U

CN217436902U - Tray transfer recognition structure and material processing production line

Info

Publication number: CN217436902U
Application number: CN202123368950.4U
Authority: CN
Inventors: 徐超; 雷丁鹏
Original assignee: Shenzhen Chenggu Technology Co ltd
Current assignee: Shenzhen Chenggu Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-09-16
Anticipated expiration: 2031-12-28

Abstract

The application provides a tray shifts identification structure and material processing lines, and this tray shifts identification structure includes: the conveying structure is used for driving the tray to move, and the moving path of the tray passes through a preset position; the detection structure is used for acquiring first information whether the tray of a preset type exists at the preset position in the movement process of the tray; and the blocking structure is in signal connection with the detection structure and used for receiving the first information of the detection structure and controlling the tray at the preset position to stop moving under the condition that the first information is 'yes'. Under the condition that the detection structure and the blocking structure are arranged in a plurality of numbers, a plurality of trays of different types can be processed on the same production line, so that the production cost can be reduced; and the process of detecting the type of the tray does not need to stop the tray, so that the working efficiency can be effectively improved.

Description

Tray transfer recognition structure and material processing production line

Technical Field

The application belongs to the technical field of material processing, and more specifically relates to a tray shifts discernment structure and material processing lines.

Background

The material processing needs a plurality of different processes, in order to ensure smooth connection among a plurality of different processes, the production line is generally needed to be utilized to connect a plurality of different processes together, one production line can process one material as far as possible, and when a plurality of materials are required to be processed, a plurality of production lines are generally adopted to process in the related art, so that the production cost is increased.

Disclosure of Invention

An object of the embodiment of the application is to provide a tray shifts discernment structure and material processing production line to the material processing production line that exists among the solution prior art processes different materials and needs a plurality of different production lines and leads to the technical problem that manufacturing cost improves.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

there is provided a tray transfer recognition structure including: the conveying structure is used for driving the tray to move, and the moving path of the tray passes through a preset position; the detection structure is used for acquiring first information whether the tray of a preset type exists at the preset position in the movement process of the tray; and the blocking structure is in signal connection with the detection structure and used for receiving the first information of the detection structure and controlling the tray at the preset position to stop moving under the condition that the first information is 'yes'.

In one embodiment, the detection structure comprises: the first detection piece is used for acquiring second information whether the tray at the preset position exists or not; the second detection piece is used for acquiring third information whether the tray at the preset position is a preset tray or not; wherein, in a case where both the second information and the third information are "yes", the first information is "yes"; in a case where at least one of the second information and the third information is "no", the first information is "no".

In one embodiment, the first detecting member is a photosensor, and the first detecting member is disposed below the conveying structure; the first detection piece is used for emitting photoelectric information upwards and acquiring fourth information whether the photoelectric information reflected by the tray exists or not under the condition that the tray moves to the preset position; the lower surface of the tray is of a solid structure in the area where the photoelectric information emitted by the first detection piece passes through; wherein, in a case where the fourth information is "yes", the second information is "yes"; if the fourth information is "no", the second information is "no".

In one embodiment, the second detecting member is a photosensor, and the second detecting member is disposed below the conveying structure; the second detection piece is used for emitting the photoelectric information upwards and acquiring fifth information whether the photoelectric information reflected by the tray exists continuously or not under the condition that the tray moves to the preset position; at least part of the lower surface of the tray in a region through which the photoelectric information emitted by the second detection piece passes is a through hole; wherein, in a case where the fifth information is "yes", the third information is "no"; if the fifth information is "no", the third information is "yes".

In one embodiment, the blocking structure comprises: a barrier having a first state and a second state; in the first state, the blocking piece is at least partially positioned in front of the movement path of the tray at the preset position so as to block the tray at the preset position from moving continuously; in the second state, the blocking piece is completely separated from the front of the motion path of the tray at the preset position so as to open the tray at the preset position to continue moving; and the driving piece is fixedly connected to the blocking piece and used for controlling the blocking piece to switch between the first state and the second state.

In one embodiment, further comprising: the feeding structure is used for placing a preset material on the tray at a feeding position; the first transfer structure is fixedly connected to the blocking structure, and bears the tray stopped at the preset position and drives the tray to move to the middle position under the condition that the blocking structure controls the tray at the preset position to stop moving; and the second transferring structure is arranged between the feeding structure and the first transferring structure and used for transferring the tray positioned at the middle position to the feeding position.

In one embodiment, the first transfer structure comprises: a plurality of first rails spaced apart from each other in a predetermined direction, the first rails being used for transferring a tray from the intermediate position to the first rails at a position close to the intermediate position; the control element is connected with all the first rails and is used for controlling each first rail to be close to and far away from the middle position; and the second track is used for transferring the tray on the first track to the loading position.

In one embodiment, the loading structure comprises: the conveying belt is used for conveying materials; the identification piece is used for acquiring the position information of the material on the conveyor belt; and the manipulator is in signal connection with the identification piece and is used for receiving the position information and grabbing the preset material to the tray at the material loading position according to the position information.

In one embodiment, further comprising: the processing structure is used for processing the preset material at the processing position; and the third transfer structure is fixedly connected with the blocking structure, and is used for controlling the stopping motion of the tray at the preset position under the condition that the tray at the preset position stops moving, bearing and stopping the tray at the preset position and driving the tray to move to the processing position.

Still provide a material processing lines, including foretell tray transfer identification structure.

The application provides a tray shifts identification structure and material processing lines's beneficial effect lies in: this tray shifts identification structure includes: a transport structure, a detection structure and a blocking structure; the conveying structure is used for driving the tray to move, and the moving path of the tray passes through a preset position; the detection structure is used for acquiring first information whether a tray of a preset type at a preset position exists or not in the movement process of the tray; the blocking structure is in signal connection with the detection structure and used for receiving first information of the detection structure and controlling the tray at the preset position to stop moving under the condition that the first information is 'yes'; under the condition that the first information is 'yes', the tray at the preset position is a preset type of tray, the stopping of the preset type of tray is controlled by the blocking structure, and materials can be placed on the preset type of tray or processed on the preset type of tray; under the condition that the first information is 'no', the tray at the preset position is not a preset type of tray, and at the moment, the tray can continue to move under the driving of the transmission structure; therefore, under the condition that the detection structure and the blocking structure are arranged in a plurality of numbers, a plurality of trays of different types can be processed on the same production line, and the production cost can be reduced; and the process of detecting the type of the tray does not need to stop the movement of the tray, so that the working efficiency can be effectively improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a tray transfer identification structure provided in an embodiment of the present application;

fig. 2 is a schematic view of a part of a structure in a tray transfer recognition structure according to an embodiment of the present disclosure;

fig. 3 is a schematic view of another structure of a tray transfer recognition structure provided in an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

100. a tray transfer identification structure; 110. a transfer structure; 120. detecting the structure; 121. a first detecting member; 122. a second detecting member; 130. a barrier structure; 131. a blocking member; 132. a drive member; 140. a feeding structure; 141. a conveyor belt; 142. an identification member; 143. a manipulator; 150. a first transfer structure; 151. a first track; 152. a second track; 160. a second transport structure; 170. processing the structure; 180. a third transport structure.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The tray transfer recognition structure and the material processing line provided in the embodiment of the present application will now be described.

As shown in fig. 1, 2 and 3, the tray transfer recognition structure 100 includes: a transport structure 110, a detection structure 120, and a blocking structure 130.

The conveying structure 110 is used for driving the tray to move, and the moving path of the tray passes through a preset position. Specifically, the conveying structure 110 may be a conveyor belt 141, the conveyor belt 141 may be two, the two conveyor belts 141 are spaced apart along the conveying direction, one conveyor belt 141 is used for bearing one end of the tray, and the other conveyor belt 141 is used for bearing the other end of the tray opposite to the one end, so long as the two conveyor belts 141 are ensured to move synchronously, that is, the tray can be conveyed. Specifically, the moving path of the tray may be a straight line, or may be a curved line or a broken line or other forms. In the embodiments of the present application, the movement path is described as a straight line. The preset position can be located in the middle of the tray moving path to ensure that the tray can move from the rear end of the moving path towards the direction close to the preset position gradually, and can move towards the direction far away from the preset position after moving to the preset position until moving to the front end of the moving path.

The detecting structure 120 is used for acquiring first information whether a tray of a preset kind at a preset position exists during the movement of the tray. Specifically, the detecting structure 120 may be installed below the conveying structure 110, and the detecting structure 120 is disposed between the two conveying belts 141 to obtain the information of the tray by using the gap between the two conveying belts 141. Specifically, different structures may be disposed on the bottom surfaces of different trays, so that the detection structure 120 can obtain the information about the existence of the tray.

The blocking structure 130 is signally connected to the detection structure 120. In particular, the blocking structure 130 may be connected by means of a wire connection, a radio signal, etc., so that the blocking structure 130 may receive the first information of the detection structure 120. Under the condition that the first information is "yes", the tray at the preset position is the tray of the preset type, and the blocking structure 130 controls the tray at the preset position to stop moving, so that the tray can be conveniently loaded or processed. In the case that the first information is "no", the tray at the preset position is not a tray of the preset type, the blocking structure 130 opens the movement of the tray, and the tray may continue to move under the driving of the conveying structure 110.

The tray transfer recognition structure 100 includes: a transport structure 110, a detection structure 120, and a blocking structure 130; the conveying structure 110 is used for driving the tray to move, and the moving path of the tray passes through a preset position; the detection structure 120 is configured to obtain first information about whether a tray of a preset type at a preset position exists during a movement of the tray; the blocking structure 130 is in signal connection with the detecting structure 120, and is configured to receive first information of the detecting structure 120, and control the tray at the preset position to stop moving if the first information is "yes"; if the first information is yes, the tray at the preset position is a preset type of tray, and the blocking structure 130 is used for controlling the preset type of tray to stop moving, so that materials can be placed on the preset type of tray or processed on the preset type of tray; under the condition that the first information is 'no', the tray at the preset position is not a preset type of tray, and at the moment, the tray can continue to move under the driving of the transmission structure; therefore, under the condition that a plurality of detection structures 120 and blocking structures 130 are arranged, a plurality of different types of trays can be processed on the same production line, and the production cost can be reduced; and the process of detecting the type of the tray does not need to stop the tray, so that the working efficiency can be effectively improved.

In some embodiments of the present application, the detection structure 120 may include: a first sensing member 121 and a second sensing member 122.

The first detecting member 121 is used to acquire second information on whether a tray at a preset position exists. If the second information is yes, it indicates that a tray exists at the preset position; in the case where the second information is "no", it is described that the tray does not exist at the preset position.

The second detecting member 122 is configured to acquire third information whether the tray at the preset position is a preset tray. In the case where the second information is "yes", the second detection piece 122 starts to operate to acquire third information; if the third information is "yes", it means that the first information is "yes", that is, a tray exists at the preset position, and the tray is a preset type of tray; in the case where the third information is "no", it is described that the first information is "no", that is, the tray existing at the preset position is not a preset kind of tray.

In some embodiments of the present application, the first detecting member 121 may be a photo sensor, the first detecting member 121 is disposed below the conveying structure 110, the photo sensor may emit an optical electrical signal upwards, and the lower surface of the tray may be a solid structure in an area through which the optical electrical information emitted by the first detecting member 121 passes, so that in the case where the tray exists at a preset position, the optical electrical signal may be reflected and received by the photo sensor; under the condition that no tray exists at the preset position, the photoelectric signal cannot be reflected and cannot be received by the photoelectric sensor; fourth information that whether the information reflected by the tray exists or not can be acquired by using the first detecting member 121; in the case where the fourth information is "yes", the second information is "yes"; if the fourth information is "no", the second information is "no".

In some embodiments of the present application, the second detecting member 122 may be a photoelectric sensor, the second detecting member 122 is disposed below the conveying structure 110, the photoelectric sensor may emit a photoelectric signal upwards, the second detecting member 122 and the first detecting member 121 are spaced apart in a direction perpendicular to a moving direction of the tray, a part of a region of the lower surface of the tray, through which the photoelectric information emitted by the second detecting member 122 passes, may be solid, and the other part of the region is a through hole, and when the tray moves to a preset position, the second detecting member 122 may acquire fifth information indicating whether the photoelectric information reflected by the tray always exists; in the case that the fifth information is "yes", that is, in the duration that the fourth information is "yes", the second detecting member 122 continuously detects the photoelectric information reflected by the tray, and at this time, the third information is "no", that is, the tray is not a tray of a preset kind; in the case that the fifth information is "no", that is, in the duration that the fourth information is "yes", the second detecting member 122 does not detect the photoelectric information reflected by the tray for a part of the time, and at this time, the third information is "yes", that is, the tray is a predetermined kind of tray.

In some embodiments of the present application, the barrier structure 130 may include: a stop 131 and a driver 132.

The barrier 131 has a first state and a second state; in the first state, the blocking member 131 is at least partially located in front of the moving path of the tray at the preset position to block the tray at the preset position from further moving. Specifically, the blocking member 131 may be provided in a column shape, and the blocking member 131 may move upward along a direction perpendicular to the tray moving direction to block the tray from moving further; in the second state, the stoppers 131 are all located outside the movement path of the tray at the preset position to open the tray at the preset position to continue the movement. Specifically, the stopper 131 may move downward in a direction perpendicular to the tray moving direction to open the tray to continue the movement.

The driving member 132 is fixedly connected to the blocking member 131, and the driving member 132 is used for controlling the blocking member 131 to switch between the first state and the second state. Specifically, the driving member 132 may be an air cylinder, and the expansion and contraction direction of the air cylinder is in the vertical direction. In the extended state of the driving member 132, the blocking member 131 is in the first state; in the shortened state of the driving member 132, the blocking member 131 is in the second state.

In some embodiments of the present application, the tray transfer recognition structure 100 may further include: a loading structure 140, a first transfer structure 150, and a second transfer structure 160.

The loading structure 140 is used to place the preset material on the tray at the loading position. Specifically, the materials can be set to be various, the trays also have various types, the materials and the trays can be in one-to-one correspondence, and each type of material needs to be placed on the corresponding tray.

The first transferring structure 150 is fixedly connected to the blocking structure 130, and under the condition that the blocking structure 130 controls the tray at the preset position to stop moving, the first transferring structure 150 bears the tray stopped at the preset position and drives the tray to move to the middle position. Specifically, the first transfer structure 150 may include a rolling rail and a telescopic member, the rolling rail may drive the tray to move, and the telescopic member may control the rolling rail to move up and down. Specifically, the intermediate position may be at the same level as the preset position to facilitate the first transfer structure 150 to transfer the position of the tray. Specifically, under the condition that the first transferring structure 150 needs to drive the tray to move, the first transferring structure 150 is driven by the telescopic member to move upwards, so that the position of the first transferring structure 150 protrudes upwards from the conveyor belt 141, and the rolling track can be borne on the tray; in the case that the first transferring structure 150 does not need to move the tray, the first transferring structure 150 moves downward by the telescopic member, so that the position of the first transferring structure 150 is recessed downward in the conveyor belt 141, and the rolling track can open the tray to pass on the conveyor belt 141.

A second transfer structure 160 is disposed between the loading structure 140 and the first transfer structure 150, the second transfer structure 160 being for transferring the trays located at the intermediate position to the loading position. Specifically, the second transfer structure 160 may be a rolling track, and the rolling track may drive the tray to move. In particular, the loading position and the intermediate position may be on the same plane, so that the second transfer structure 160 transfers the position of the tray.

In some embodiments of the present application, the second transfer structure 160 may include: a first rail 151, a control member, and a second rail 152.

The first rail 151 is provided in a plurality, and the plurality of first rails 151 are spaced apart in a predetermined direction. Specifically, the preset direction may be a vertical direction. The first rail 151 serves to transfer the tray from the intermediate position onto the first rail 151 at a position close to the intermediate position. Specifically, the plurality of first rails 151 may be movable in a vertical direction, and when one of the first rails 151 is moved to a position close to the middle position, an action of transferring the tray from the middle position to the first rail 151 may be performed. A channel is formed between two adjacent first rails 151, and the channel is used for passing through the tray, that is, the height of the channel is not less than the height of the tray. Since the first track 151 is provided in plurality, the trays can be buffered to prevent the efficiency from being reduced due to the mismatch between the speed of the trays transported by the transporting structure 110 and the speed of the feeding link.

A control member is connected to all the first rails 151, and the control member serves to control each of the first rails 151 to approach and depart from the neutral position. Specifically, the control member may be a cylinder or an assembly of a gear and a rack, and it is only necessary that the control member can control each of the first rails 151 to approach and separate from the intermediate position. Specifically, the relative position relationship between all the first rails 151 may be kept fixed, that is, all the first rails 151 may be fixedly connected, the control member only needs to control one of the first rails 151 to move in the vertical direction, and the other first rails 151 move synchronously, and during the movement of the control member in the vertical direction, each first rail 151 may be located at a position close to the middle position for a part of time.

The second rail 152 is used to transfer the pallet on the first rail 151 to the loading position. The position of the second rail 152 may be kept fixed, and the upper surface of the second rail 152 may be kept at the same level with the middle position and the loading position, so that the second rail 152 may facilitate the transfer of the tray from the first rail 151 to the loading position.

In some embodiments of the present application, the feeding structure 140 may include: a conveyor 141, a recognition piece 142, and a robot 143.

The conveyor belt 141 is used to convey the material. Specifically, the conveyer belt 141 can be set up to the broad body form, and the material can be placed on the conveyer belt 141, and the conveyer belt 141 of broad body form can ensure that the material can not drop. Specifically, the conveyor belt 141 may be provided in plurality, and each conveyor belt 141 is used for conveying the material of the type corresponding to the conveyor belt 141. For example, the conveyor belts 141 may be set to three, the types of the materials are also set to three, the trays are also set to three, the materials, the trays and the conveyor belts 141 may be in one-to-one correspondence, each conveyor belt 141 conveys the materials corresponding to the conveyor belt, and each tray is used for bearing the materials corresponding to the tray.

The recognition member 142 is used to acquire position information of the material on the conveyor belt 141. When the preset material on the conveyor belt 141 moves to the detection range of the identification piece 142, the identification piece 142 can acquire the position information of the preset material, and the position information is the identification range of the identification piece 142. Specifically, the identification piece 142 may be an image identification mechanism, the identification piece 142 may acquire image information of a preset position, the image information of the preset position is compared with image information of a preset material prestored in the database, and when the similarity is not less than the threshold, the position information may be considered as being within the identification range of the identification piece 142.

The robot 143 is signally connected to the identifier 142. Specifically, the manipulator 143 may be electrically connected to the identification member 142 through a wire, or may be signal-connected to the identification member 142 through radio or the like. The manipulator 143 is configured to receive the position information, and grasp a preset material onto a tray at the feeding position according to the position information, so as to place the material on the tray corresponding to the preset material. Since there is a delay between the gripping movement of the robot 143 and the recognition of the recognition member 142 to the position information of the preset material, the gripping position of the robot 143 may be set at a position a certain distance behind the recognition range of the recognition member 142. For example, the certain distance may be 2-5 cm. Specifically, the robot 143 may be provided in plurality, each robot 143 is configured to grip one of the materials, and each robot 143 is located near a corresponding tray.

In some embodiments of the present application, the tray transfer recognition structure 100 may further include: a processing structure 170 and a third transfer structure 180.

The processing structure 170 is used to process the material at the processing location. Specifically, the processing structure 170 may be an assembled structure, or may be another structure that performs processing, such as a welded structure. Specifically, the processing structure 170 may be provided in a plurality, and each processing structure 170 is used for processing one of the materials corresponding to the processing structure. For example, the number of the processing structures 170 may be three, the processing structures 170 correspond to the materials one by one, and each processing structure 170 is used for processing the material corresponding to the processing structure, so that the processing of three materials by using the same production line is realized.

The third transferring structure 180 is fixedly connected to the blocking structure 130, and under the condition that the blocking structure 130 controls the tray at the preset position to stop moving, the third transferring structure 180 bears the tray stopped at the preset position and drives the tray to move to the processing position. Specifically, the third transfer structure 180 may be a rail, and the tray may be supported by the rail and moved by the tray. Specifically, the processing position and the preset position may be on the same horizontal plane, so that the third transfer structure 180 transfers the tray. Specifically, the third transfer structure 180 may be provided in a plurality, and the third transfer structure 180 corresponds to the processing structure 170 one to one. For example, three third transfer structures 180 may be provided, each third transfer structure 180 being adapted to transport a tray corresponding thereto to a processing position corresponding thereto.

The embodiment of the application also provides a material processing production line, which comprises the tray transfer identification structure, and the tray transfer identification structure can be used for processing various different materials by using one production line, and is high in working efficiency.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tray transfer identification structure, comprising:

the conveying structure is used for driving the tray to move, and the moving path of the tray passes through a preset position;

the detection structure is used for acquiring first information whether the tray of a preset type exists at the preset position in the movement process of the tray;

and the blocking structure is in signal connection with the detection structure and used for receiving the first information of the detection structure and controlling the tray at the preset position to stop moving under the condition that the first information is 'yes'.

2. The tray transfer identification arrangement of claim 1, wherein said detection arrangement comprises:

the first detection piece is used for acquiring second information whether the tray at the preset position exists or not;

the second detection piece is used for acquiring third information whether the tray at the preset position is a preset tray or not;

wherein, in a case where both the second information and the third information are "yes", the first information is "yes"; in a case where at least one of the second information and the third information is "no", the first information is "no".

3. The tray transfer recognition structure according to claim 2, wherein the first detection member is a photoelectric sensor, the first detection member being disposed below the conveyance structure; the first detection piece is used for emitting photoelectric information upwards and acquiring fourth information whether the photoelectric information reflected by the tray exists or not under the condition that the tray moves to the preset position; the lower surface of the tray is of a solid structure in the area where the photoelectric information emitted by the first detection piece passes through;

wherein, in a case where the fourth information is "yes", the second information is "yes"; if the fourth information is "no", the second information is "no".

4. The tray transfer discriminating structure of claim 2 or 3 wherein said second detecting member is a photoelectric sensor, said second detecting member being disposed below said conveying structure; the second detection piece is used for emitting the photoelectric information upwards and acquiring fifth information whether the photoelectric information reflected by the tray exists continuously or not under the condition that the tray moves to the preset position; at least part of the lower surface of the tray is a through hole in the area where the photoelectric information emitted by the second detection piece passes;

wherein, in a case where the fifth information is "yes", the third information is "no"; if the fifth information is "no", the third information is "yes".

5. The tray transfer identification arrangement of claim 1, wherein the blocking arrangement comprises:

a barrier having a first state and a second state; in the first state, the blocking piece is at least partially positioned in front of the movement path of the tray at the preset position so as to block the tray at the preset position from moving continuously; in the second state, the blocking piece is completely separated from the front of the motion path of the tray at the preset position so as to open the tray at the preset position to continue moving;

and the driving piece is fixedly connected to the blocking piece and used for controlling the blocking piece to switch between the first state and the second state.

6. The tray transfer identifying structure of claim 1 or 5, further comprising:

the feeding structure is used for placing a preset material on the tray at a feeding position;

the first transfer structure is fixedly connected to the blocking structure, and under the condition that the blocking structure controls the tray at the preset position to stop moving, the first transfer structure bears the tray stopped at the preset position and drives the tray to move to the middle position;

and the second transferring structure is arranged between the feeding structure and the first transferring structure and used for transferring the tray positioned at the middle position to the feeding position.

7. The tray transfer identification arrangement of claim 6, wherein the first transfer arrangement comprises:

a plurality of first rails spaced apart from each other in a predetermined direction, the first rails being used for transferring a tray from the intermediate position to the first rails at a position close to the intermediate position;

the control element is connected with all the first rails and is used for controlling each first rail to be close to and far away from the middle position;

and the second track is used for transferring the tray on the first track to the loading position.

8. The tray transfer identification arrangement of claim 6, wherein said loading arrangement comprises:

the conveying belt is used for conveying materials;

the identification piece is used for acquiring the position information of the material on the conveyor belt;

and the mechanical arm is in signal connection with the identification piece and is used for receiving the position information and grabbing the preset material to the tray at the feeding position according to the position information.

9. The tray transfer identifying structure of claim 1 or 5, further comprising:

the processing structure is used for processing the preset material at the processing position;

and the third transfer structure is fixedly connected with the blocking structure, and is used for controlling the stopping motion of the tray at the preset position under the condition that the tray at the preset position stops moving, bearing and stopping the tray at the preset position and driving the tray to move to the processing position.

10. A material processing line, characterized in that it comprises a pallet transfer identification structure according to any one of claims 1-9.