Conveyance control method, conveyance device, and processing system

Abstract

The application provides a conveying control method, a conveying device and a processing system. The conveying control method comprises: in response to the same material being conveyed by the mth conveying belt and the m+1th conveying belt at the same time, controlling the mth conveying belt to be in the same working mode as the m+1th conveying belt, 1≤m

Description

Technical Field

[0001] This application relates to the technical field of material conveying, and in particular to a conveying control method, conveying device and processing system. Background Technology

[0002] PVD (Physical Vapor Deposition) equipment typically includes a first chamber, a second chamber, and a conveyor belt. In continuous production, multiple materials need to be sequentially conveyed to the first chamber for preheating, during which time the materials need to remain in the first chamber for a specified period. After preheating, the conveyor belt sequentially conveys the multiple materials to the second chamber. The second chamber performs PVD coating on the multiple materials.

[0003] However, multiple materials in the second chamber need to keep moving forward during the coating process, while the materials in the first chamber need to stay for a period of time for preheating. This results in a situation where the previous material continues to move forward while the next material stops moving, leading to a larger gap between the previous material and the next material entering the second chamber. This increases the amount of ineffective target material wasted in the second chamber and increases production costs. Summary of the Invention

[0004] In view of the above, it is necessary to provide a conveying control method, a conveying device, and a processing system to solve the above-mentioned defects.

[0005] In a first aspect, embodiments of this application provide a conveying control method applied to a conveying device; the conveying device includes: n conveyor belts, arranged at intervals along the conveying direction, for sequentially conveying multiple materials along the conveying direction, n≥2; in the conveying direction, the distance between two adjacent conveyor belts is less than the length of the material; wherein, the first conveyor belt is located at the outlet of the first cavity, and the nth conveyor belt is located in the second cavity; the first cavity and the second cavity are arranged sequentially along the conveying direction; the conveying control method includes: in response to the mth conveyor belt and the (m+1)th conveyor belt simultaneously conveying the same material, controlling the mth conveyor belt to be in the same working mode as the (m+1)th conveyor belt, 1≤m<n; wherein, the working mode includes a first mode and a second mode, the average conveying speed of the second mode is greater than the average conveying speed of the first mode, and the nth conveyor belt is in the first mode; in response to the mth conveyor belt and the (m+1)th conveyor belt not simultaneously conveying the same material, controlling the mth conveyor belt to be in the second mode.

[0006] In some embodiments, the first mode includes: conveying materials at a first speed; the second mode includes: conveying materials at a second speed and calculating an acceleration time, and when the acceleration time reaches a preset time threshold, conveying materials at the first speed, wherein the second speed is greater than the first speed.

[0007] In some embodiments, the conveying device includes a position detection module for monitoring the position of all materials on the conveying device.

[0008] In some embodiments, the conveyor belt includes a long conveyor belt that is close to the first cavity; in the conveying direction, the length of the long conveyor belt is greater than the length of the material.

[0009] In some embodiments, the conveyor belt includes a short-pitch conveyor belt that is close to the second cavity; in the conveying direction, the length of the short-pitch conveyor belt is less than the length of the material.

[0010] In some embodiments, the conveying device further includes a preheating conveyor belt disposed in the first cavity; the conveying control method further includes: in response to meeting the preheating conditions, controlling the preheating conveyor belt to convey materials to the first conveyor belt; the preheating conditions include: the previous material arriving at a preset target position, wherein the conveying time of the material from the preheating conveyor belt to the target position corresponds to the time required to preheat the material.

[0011] In some embodiments, the target location is located at the end of the first conveyor belt away from the first cavity; in the conveying direction, the length of the first conveyor belt is greater than the length of the material.

[0012] In some embodiments, the preheating condition further includes: there is no material on the first conveyor belt.

[0013] Secondly, embodiments of this application provide a conveying device, comprising: n conveyor belts arranged at intervals along a conveying direction for sequentially conveying multiple materials along the conveying direction, where n≥2; the distance between two adjacent conveyor belts in the conveying direction is less than the length of the material; wherein, a first conveyor belt is used to receive materials from a first cavity, and the nth conveyor belt is located in a second cavity; the first cavity and the second cavity are arranged sequentially along the conveying direction; and a controller, communicatively connected to the conveyor belts, for executing the conveying control method as provided in the first aspect.

[0014] Thirdly, embodiments of this application provide a processing system including a first cavity, a second cavity, and a conveying device as provided in the second aspect, the conveying device being used to convey materials.

[0015] This application provides a conveying device and processing system in some embodiments, in which multiple materials are sequentially conveyed along a conveying direction by n conveyor belts. When the m-th conveyor belt and the (m+1)-th conveyor belt are simultaneously conveying the same material, the m-th conveyor belt needs to be controlled to operate in the same mode as the (m+1)-th conveyor belt, so that the m-th and (m+1)-th conveyor belts operate at the same conveying speed to prevent material slippage. When the m-th and (m+1)-th conveyor belts are not simultaneously conveying the same material, if the m-th and (m+1)-th conveyor belts do not interfere with each other, the m-th conveyor belt can operate at a faster conveying speed relative to the (m+1)-th conveyor belt, so that the next material carried by the m-th conveyor belt can catch up with the previous material carried by the (m+1)-th conveyor belt. As multiple materials pass through multiple conveyor belts in sequence along the conveying direction, they intermittently accelerate and catch up with each other. This shortens the material spacing between multiple materials entering the second chamber without affecting the uniform movement of materials in the second chamber. This effectively reduces the amount of target material that passes through the material spacing and is deposited on the chamber wall, thereby reducing the amount of ineffective target material consumption, lowering production costs, reducing contamination of the second chamber wall, reducing equipment maintenance time, and thus improving coating efficiency and equipment capacity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first structure of the processing system in an embodiment of this application, wherein material is present in the first cavity, and the X direction in the diagram is the conveying direction.

[0017] Figure 2 This is a schematic diagram illustrating the action of the next material catching up with the previous material in an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the second structure of the processing system in an embodiment of this application, wherein materials are present in the first cavity, the buffer cavity, and the second cavity, and the X direction in the figure is the conveying direction.

[0019] Figure 4 This is a schematic diagram of the conveying device in an embodiment of this application.

[0020] Figure 5 This is the first flowchart of the conveying control method in the embodiments of this application.

[0021] Figure 6 This is the second flowchart of the conveying control method in the embodiments of this application.

[0022] Figure 7 This is a schematic diagram of the conveying control method in this application scenario, showing the process of the conveying device conveying materials from the first stage to the third stage.

[0023] Figure 8This is a schematic diagram of the conveying control method in this application scenario, showing the process of the conveying device conveying materials from the fourth stage to the sixth stage.

[0024] Figure 9 This is a schematic diagram of the conveying control method in this application scenario, showing the process of the conveying device conveying materials from the seventh stage to the eighth stage.

[0025] Explanation of main component symbols

[0026] Machining System 1000

[0027] First 100

[0028] Buffer chamber 200

[0029] Second chamber 300

[0030] Conveying device 400

[0031] Material 500

[0032] First material 501

[0033] Second material 502

[0034] Third material 503

[0035] Fourth material 504

[0036] Conveyor belt 10

[0037] First conveyor belt 11

[0038] Second conveyor belt 12

[0039] Third conveyor belt 13

[0040] Fourth conveyor belt 14

[0041] Long-distance conveyor belt 15

[0042] Short-distance conveyor belt 16

[0043] Position detection module 20

[0044] Fifth photoelectric sensor 21

[0045] Sixth photoelectric sensor 22

[0046] Seventh photoelectric sensor 23

[0047] Controller 30

[0048] Preheating conveyor belt 40

[0049] Material detection module 50

[0050] Third photoelectric sensor 51

[0051] Fourth photoelectric sensor 52

[0052] Preheating detection module 60

[0053] First photoelectric sensor 61

[0054] Second photoelectric sensor 62

[0055] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments.

[0057] The term "multiple" in this application refers to two or more. Furthermore, it should be understood that the terms "first," "second," etc., used in the description of this application are used only for descriptive purposes and should not be construed as indicating or implying relative importance, nor as indicating or implying order.

[0058] In the description of the embodiments in this application, the words "exemplary" or "for example" are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0059] This application first provides a processing system for coating materials. The material can be a carrier plate holding battery raw materials, or other raw materials to be coated.

[0060] Please see Figure 1 The processing system 1000 includes a first cavity 100, a buffer cavity 200, a second cavity 300, and a conveying device 400. The first cavity 100 and the second cavity 300 are arranged sequentially along the conveying direction. The buffer cavity 200 is located between the first cavity 100 and the second cavity 300. The conveying device 400 passes sequentially through the first cavity 100, the buffer cavity 200, and the second cavity 300 along the conveying direction. The conveying device 400 is used to sequentially convey multiple materials 500 along the conveying direction, so that the multiple materials 500 are sequentially conveyed from the first cavity 100 to the buffer cavity 200, and then arrive at the second cavity 300.

[0061] For example, the first cavity 100 can be a preheating cavity for preheating the material 500. In this embodiment, a heating module is provided inside the first cavity 100, and cavity doors are provided at both the inlet and outlet of the first cavity 100. In the conveying direction, the length of the first cavity 100 is greater than the length of the material 500 but less than twice the length of the material 500, so that the first cavity 100 can only accommodate one material 500 for preheating at a time.

[0062] The first chamber 100 is configured to operate as follows: when preheating of material 500 is required, the chamber door of the first chamber 100 opens, material 500 enters the first chamber 100 and remains at a designated position, then the chamber door of the first chamber 100 closes, and the heating module heats the material 500 remaining in the first chamber 100. After the first chamber 100 meets the preset preheating conditions, and the material 500 has been heated for a specified time, the chamber door of the first chamber 100 opens, conveying the preheated material 500 to the buffer chamber 200. Simultaneously, the next material 500 enters the first chamber 100 and remains at a designated position, then the chamber door of the first chamber 100 closes until the next material 500 has finished preheating; and so on.

[0063] It can be understood that the first cavity 100 is equivalent to conveying multiple materials 500 to the buffer cavity 200 in sequence at certain time intervals. During these time intervals, a certain material spacing is formed between the multiple materials 500 that enter the buffer cavity 200 in sequence.

[0064] For example, the second cavity 300 can be a process cavity for coating the material 500. Multiple materials 500 within the second cavity 300 are continuously conveyed along the conveying direction by the conveying device 400. As the material 500 passes through the second cavity 300, the second cavity 300 coats the target material onto the surface of the material 500. During this process, the material 500 always moves at a uniform speed according to a preset speed.

[0065] The conveying device 400 includes a plurality of conveyor belts 10, which are arranged sequentially at intervals along the conveying direction. For example, the conveyor belts 10 are driven by servo motors. By controlling the rotational speed of the servo motors, the conveying speed of the conveyor belts 10 can be controlled, thereby controlling the working mode of the conveyor belts 10.

[0066] For ease of description, in this embodiment, the end of the conveyor belt 10 that is away from the conveying direction is defined as the beginning end, and the end of the conveyor belt 10 that is towards the conveying direction is defined as the end end.

[0067] In this embodiment, the distance between two adjacent conveyor belts 10 is less than the length of the material 500 in the conveying direction. Thus, when the previous conveyor belt 10 conveys the material 500 to the next conveyor belt 10, the material 500 can cross the distance between the two conveyor belts 10 and be supported by both the end of the previous conveyor belt 10 and the beginning of the next conveyor belt 10, preventing the material 500 from falling out of the distance between the two conveyor belts 10.

[0068] Please see Figure 1 and Figure 2 In this embodiment, the number of conveyor belts 10 is defined as n, where n is a positive integer ≥ 3. Furthermore, in the conveying direction, each conveyor belt 10 can be divided into a first conveyor belt 11, a second conveyor belt 12, ..., the nth conveyor belt. For example, the number of conveyor belts 10 is 4, and each conveyor belt 10 is sequentially divided according to the conveying direction into: a first conveyor belt 11, a second conveyor belt 12, a third conveyor belt 13, and a fourth conveyor belt 14 (i.e., the nth conveyor belt).

[0069] The first conveyor belt 11 is located at the outlet of the first cavity 100 and is used to receive the material 500 from the first cavity 100. The first conveyor belt 11, ..., the (n-1)th conveyor belt is located in the buffer cavity 200 and is used to transport the material 500 to the second cavity 300. The nth conveyor belt is located in the second cavity 300 and is used to transport the material 500 uniformly in the second cavity 300 at a specified conveying speed.

[0070] In this embodiment, the conveyor belt 10 has multiple operating modes, and the conveying speed of the conveyor belt 10 varies in different operating modes. Specifically, the operating modes of the conveyor belt 10 include a first mode and a second mode, wherein the average conveying speed in the second mode is greater than the average conveying speed in the first mode. The nth conveyor belt always operates in the first mode to achieve the purpose of conveying material 500 at a uniform speed. The first conveyor belt 11, ..., the (n-1)th conveyor belt can switch between the first mode and the second mode.

[0071] In this embodiment, when the first conveyor belt 11, ..., the (n-1)th conveyor belt is in the first mode, the first conveyor belt 11, ..., the (n-1)th conveyor belt can synchronously transport multiple materials 500 with the nth conveyor belt, so that the materials 500 located behind and the materials 500 located in front move synchronously.

[0072] When the first conveyor belt 11, ..., the (n-1)th conveyor belt is in the second mode, it can drive the corresponding material 500 to move intermittently and accelerate within the buffer chamber 200, so that the material 500 located behind can catch up with the material 500 located in front.

[0073] For ease of description, in the following text, two adjacent conveyor belts 10 are defined as: the m-th conveyor belt and the (m+1)-th conveyor belt, where 1 ≤ m < n. The (m+1)-th conveyor belt is the conveyor belt 10 located ahead in the conveying direction, and the m-th conveyor belt is the conveyor belt 10 located behind in the conveying direction; they are arranged opposite to each other. For example, if the first conveyor belt 10 is considered the m-th conveyor belt, then the second conveyor belt 10 is considered the (m+1)-th conveyor belt; if the second conveyor belt 10 can be considered the m-th conveyor belt, then the third conveyor belt 10 can be considered the (m+1)-th conveyor belt; if the second-to-last conveyor belt 10 can be considered the m-th conveyor belt, then the last conveyor belt 10 (the n-th conveyor belt) can be considered the (m+1)-th conveyor belt; and so on.

[0074] In this embodiment, the operating mode of the conveyor belt 10 is configured as follows:

[0075] When the m-th conveyor belt and the (m+1)-th conveyor belt are simultaneously conveying the same material 500, the m-th conveyor belt is in the same working mode as the (m+1)-th conveyor belt; when the m-th conveyor belt and the (m+1)-th conveyor belt are not simultaneously conveying the same material 500, the m-th conveyor belt is controlled to be in the second mode.

[0076] When the m-th conveyor belt and the (m+1)-th conveyor belt are simultaneously conveying the same material 500, the m-th conveyor belt needs to be controlled in the same working mode as the (m+1)-th conveyor belt so that the m-th conveyor belt and the (m+1)-th conveyor belt work at the same conveying speed to prevent the material 500 from slipping.

[0077] If the m-th conveyor belt and the (m+1)-th conveyor belt do not simultaneously transport the same material 500, and if the m-th conveyor belt and the (m+1)-th conveyor belt do not interfere with each other, then the m-th conveyor belt can operate at a faster conveying speed relative to the (m+1)-th conveyor belt, so that the next material 500 carried by the m-th conveyor belt can catch up with the previous material 500 carried by the (m+1)-th conveyor belt; until the next material 500 arrives at the (m+1)-th conveyor belt, so that the m-th conveyor belt and the (m+1)-th conveyor belt simultaneously transport the same material 500.

[0078] For example, if the previous material 500 is located on both conveyor belt (n-1) and conveyor belt (n), and the next material 500 is located on conveyor belt (n-2), when conveyor belts (n-1) and (n) simultaneously transport the same material 500, since conveyor belt (n) is in the first mode by default, conveyor belt (n-1) is also in the first mode. Similarly, when conveyor belts (second and third) simultaneously transport the same material 500, both conveyor belts (second and third) are in the first mode.

[0079] Meanwhile, if the (n-2)th conveyor belt and the (n-1)th conveyor belt are not simultaneously conveying the same material 500, then the (n-2)th conveyor belt is in the second mode. In this way, the moving speed of the next material 500 is greater than the moving speed of the previous material 500, allowing the next material 500 to catch up with the previous material 500, thus shortening the material distance between the previous and next materials 500. For example, when the first conveyor belt 11 and the second conveyor belt 12 are not simultaneously conveying the same material 500, the first conveyor belt 11 is in the second mode.

[0080] The previous material 500 and the next material 500 continue to move. When the next material 500 arrives at the (n-1)th conveyor belt, causing the (n-2)th conveyor belt to simultaneously transport the same material 500 as the (n-1)th conveyor belt, the (n-2)th conveyor belt needs to switch to the first mode so that the previous material 500 and the next material 500 move synchronously. For example, when the first conveyor belt 11 and the second conveyor belt 12 are simultaneously transporting the same material 500, the second conveyor belt 12 remains in the first mode, while the first conveyor belt 11 switches to the first mode.

[0081] Thus, as multiple materials 500 sequentially pass through multiple conveyor belts 10 along the conveying direction, the working mode of the multiple conveyor belts 10 is adjusted according to the position of the multiple materials 500 on the conveyor belts 10. This allows the multiple materials 500 to intermittently accelerate and catch up with each other. Without affecting the uniform movement of the materials 500 within the second cavity 300, the material spacing between the multiple materials 500 entering the second cavity 300 is shortened. This effectively reduces the amount of target material that passes through the material spacing and is deposited on the cavity wall, thereby reducing the ineffective consumption of target material, lowering production costs, and reducing contamination of the cavity wall of the second cavity 300, thus reducing equipment maintenance time. Furthermore, with the same equipment length, the second cavity 300 can accommodate a larger number of materials 500, thereby improving coating efficiency and equipment capacity.

[0082] Please see Figure 1 and Figure 3 In some embodiments, the conveyor belt 10 includes a long conveyor belt 15 that is close to the first cavity 100. In the conveying direction, the length of the long conveyor belt 15 is greater than the length of the material 500.

[0083] Thus, when the long-distance conveyor belt 15 conveys material 500, its independent conveying time of material 500 is relatively long, which can extend the time it is in the second mode, so as to achieve the effect of quickly conveying material 500 in a single catch-up.

[0084] In some embodiments, the conveyor belt 10 further includes a short-pitch conveyor belt 16, which is located near the second cavity 300, i.e., the short-pitch conveyor belt 16 is located on the side of the long-pitch conveyor belt 15 that is close to the second cavity 300. In the conveying direction, the length of the long-pitch conveyor belt 15 is less than the length of the material 500. It should be noted that the short-pitch conveyor belt 16 is not located inside the second cavity 300, i.e., the nth conveyor belt is not the short-pitch conveyor belt 16.

[0085] When the short-pitch conveyor belt 16 conveys material 500, its independent conveying time is relatively short, thereby increasing the frequency of its own working mode switching. This allows material 500 to catch up multiple times in a short period of time, and the displacement of material 500 in each catch-up is short, which facilitates precise control of the final material spacing. For example, when the material spacing is too large, the number of short-pitch conveyor belts 16 can be increased; when the material spacing is too small, the number of short-pitch conveyor belts 16 can be reduced, achieving the effect of fine adjustment of the material spacing.

[0086] Meanwhile, by setting a short-distance conveyor belt 16, the overall length of the buffer chamber 200 can be shortened, reducing the equipment's footprint and making the equipment layout in the factory more flexible.

[0087] Please see Figure 1 and Figure 3 In some embodiments, the conveying device 400 further includes a position detection module 20, which is disposed between two adjacent conveyor belts 10 and is used to monitor the position of all materials 500 on the conveying device 400.

[0088] For example, the position detection module 20 includes multiple photoelectric sensors distributed at the beginning and end of the conveyor belt 10. When the material 500 passes the beginning and end of the conveyor belt 10, the corresponding photoelectric sensor will trigger an electrical signal to determine the specific position of the material 500.

[0089] It is understood that there is a gap between the beginning and end of adjacent conveyor belts 10, and the photoelectric sensor is set accordingly to the gap between two adjacent conveyor belts 10. Thus, when the material 500 crosses the previous conveyor belt 10 and enters the next conveyor belt 10, the corresponding photoelectric sensor will trigger an electrical signal, thereby analyzing the specific position of the material 500.

[0090] For example, when material 500 is on the m-th conveyor belt, if material 500 has not passed the photoelectric sensor at the end of the m-th conveyor belt, the photoelectric sensor will not be triggered, thus determining that material 500 is on the m-th conveyor belt.

[0091] When material 500 enters the beginning of conveyor belt (m+1) from the end of conveyor belt m, it crosses the gap between conveyor belt m and conveyor belt (m+1). Material 500 passes the photoelectric sensor at the end of conveyor belt m, and the photoelectric sensor outputs a rising edge signal, determining that material 500 is simultaneously located on conveyor belt m and conveyor belt (m+1).

[0092] When material 500 leaves the end of the m-th conveyor belt, the photoelectric sensor that the material 500 leaves the end of the m-th conveyor belt outputs a falling edge signal to determine that material 500 is located on the (m+1)-th conveyor belt.

[0093] Please see Figure 1 and Figure 4 In some embodiments, the conveying device 400 further includes a controller 30, wherein multiple conveyor belts 10 and multiple position detection modules 20 are communicatively connected to the controller 30. The controller 30 can control the operating mode of each conveyor belt 10, thereby controlling the moving speed of the material 500 on the corresponding conveyor belt 10. Furthermore, the controller 30 can monitor the position of all materials 500 on each conveyor belt 10 based on the electrical signals output by each position detection module 20.

[0094] The controller 30 can be a programmable controller, a central controller (CPU), a microcontroller, an application-specific integrated circuit (ASIC), etc. The communication connection can be a wired communication connection implemented through devices such as a bus, or a wireless communication connection implemented through technologies such as wireless local area network, Bluetooth, 3G, 4G, 5G, etc.

[0095] Please see Figure 1 and Figure 4 In some embodiments, the conveying device 400 further includes a preheating conveyor belt 40 disposed within the first cavity 100. The preheating conveyor belt 40 is used to convey the material 500 to be preheated to the first cavity 100 and to convey the preheated material 500 to the first conveyor belt 11 of the buffer cavity 200. For example, the preheating conveyor belt 40 is driven by a servo motor. By controlling the rotational speed of the servo motor, the conveying speed of the preheating conveyor belt 40 can be controlled, thereby controlling the operating mode of the preheating conveyor belt 40.

[0096] The preheating conveyor belt 40 is communicatively connected to the controller 30. The controller 30 can control the working mode and conveying speed of the preheating conveyor belt 40. Specifically, when there is material 500 in the first chamber 100 and the first chamber 100 meets the preheating conditions, it means that the material 500 has been preheated. The controller 30 controls the chamber door of the first chamber 100 to open, and then controls the preheating conveyor belt 40 to convey the material 500 to the buffer chamber 200. At the same time, it conveys the next material 500 that needs to be preheated into the first chamber 100, and then controls the chamber door of the first chamber 100 to close.

[0097] In some embodiments, the conveying device 400 has a preset target position located on a designated conveyor belt 10, and there is a distance between the target position and the first cavity 100.

[0098] The preheating conditions include: the previous material 500 arriving at the preset target position. The conveying time of material 500 from the preheating conveyor belt 40 to the target position corresponds to the time required to preheat material 500.

[0099] It is understandable that after the previous material 500 is released from the first chamber 100, the conveying device 400 begins to transport the previous material 500, while the next material 500 enters the first chamber 100 for preheating. Thus, while the conveying device 400 transports the previous material 500 to the target position, the next material 500 remains in a preheating state during this time. When the previous material 500 arrives at the target position, the next material 500 has just completed its preheating and is released from the first chamber 100; and so on, enabling continuous preheating and transport of multiple materials 500.

[0100] In some embodiments, the long conveyor belt 15 is located between the target location and the preheating conveyor belt 40.

[0101] It is understandable that when the long-distance conveyor belt 15 transports material 500, the time it takes to independently transport material 500 is relatively long, which can extend the time for material 500 to reach the target position, ensuring sufficient preheating time for the next material 500. Furthermore, the long-distance conveyor belt 15 can drive material 500 away from the first chamber 100 quickly, increasing the material exchange rate of the first chamber 100, improving operating efficiency, shortening cycle time, and increasing equipment capacity.

[0102] Please see Figure 1 and Figure 4 In some embodiments, the conveying device 400 further includes a material detection module 50, which is used to monitor whether there is material 500 between the preheating conveyor belt 40 and the target position.

[0103] The preheating conditions also include: there is no material 500 between the preheating conveyor belt 40 and the target position. It should be noted that the material 500 being preheated on the preheating conveyor belt 40 is not the material 500 between the preheating conveyor belt 40 and the target position.

[0104] Thus, the preheating conveyor belt 40 is only allowed to transport the preheated next material 500 to the target position if the previous material 500 has arrived at the target position and there are no other materials 500 between the target position and the preheating conveyor belt 40, in order to prevent the next material 500 from colliding with other materials 500.

[0105] In this embodiment, the material detection module 50 is communicatively connected to the controller 30. The controller 30 can monitor whether there is material 500 between the preheating conveyor belt 40 and the target position based on the electrical signal output by the material detection module 50, and control the preheating conveyor belt 40 to work accordingly.

[0106] Please see Figure 3 and Figure 4 For example, the target position is set at the end of the second conveyor belt 12, i.e., the preheating conditions include: the end of the material 500 reaching the end of the second conveyor belt 12. The first conveyor belt 11 is a long-distance conveyor belt 15. The material detection module 50 includes multiple photoelectric sensors, which are spaced apart on the first conveyor belt 11. When the material 500 is on the first conveyor belt 11, the photoelectric sensors send corresponding electrical signals to the controller 30.

[0107] Thus, when the previous material 500 has finished preheating, the door of the first chamber 100 opens, and the preheating conveyor belt 40 transports the previous material 500 to the first conveyor belt 11, while simultaneously transporting the next material 500 into the first chamber 100. Then, the first conveyor belt 11 transports the previous material 500, and the next material 500 is preheated within the first chamber 100. When the previous material 500 has reached the second conveyor belt 12 and has completely detached from the first conveyor belt 11, the preheating of the previous material 500 is complete, and the door of the first chamber 100 reopens; and so on.

[0108] Please see Figure 1 and Figure 4 In some embodiments, the conveying device 400 further includes a preheating detection module 60, which is used to monitor the position of the material 500 in the first cavity 100. The preheating detection module 60 is communicatively connected to the controller 30. The controller 30 can monitor whether the preheated material 500 has moved into position after entering the first cavity 100 based on the electrical signal output by the material detection module 50, and correspondingly control the operation of the preheating conveyor belt 40 and the opening and closing of the cavity door.

[0109] For example, the preheating detection module 60 includes multiple photoelectric sensors, which are spaced apart on the preheating conveyor belt 40. When the material 500 is on the preheating conveyor belt 40, the photoelectric sensors send corresponding electrical signals to the controller 30.

[0110] Please see Figure 4 This application also provides a conveying control method, which is applied to the controller 30 of the conveying device 400. The conveying control method specifically includes the following steps.

[0111] Please see Figure 1 and Figure 5 S501, Obtain the position information of all materials 500 on the conveying device 400.

[0112] The location information includes the distribution positions of all materials 500 on each conveyor belt 10. In this embodiment, the location information of the materials 500 is obtained by monitoring the position of all materials 500 on the conveying device 400 through the position detection module 20.

[0113] S502. Determine whether the m-th conveyor belt and the (m+1)-th conveyor belt are simultaneously conveying the same material 500. If yes, proceed to step S503; otherwise, proceed to step S504.

[0114] S503, Control the m-th conveyor belt to be in the same working mode as the (m+1)-th conveyor belt.

[0115] In response to the simultaneous conveying of the same material 500 by the m-th conveyor belt and the m+1-th conveyor belt, the m-th conveyor belt is controlled to switch to the same working mode as the m+1-th conveyor belt, so that the conveying speed of the m-th conveyor belt is the same as that of the m+1-th conveyor belt, thereby preventing the material 500 on the m-th conveyor belt and the m+1-th conveyor belt from slipping.

[0116] S504, Control the m-th conveyor belt to be in the second mode.

[0117] In response to the fact that the same material 500 is not being conveyed simultaneously between the m-th conveyor belt and the m+1-th conveyor belt, the m-th conveyor belt is controlled to switch to the second mode, so that the average conveying speed of the m-th conveyor belt is greater than the average conveying speed of the m+1-th conveyor belt.

[0118] As multiple materials 500 sequentially pass through multiple conveyor belts 10 along the conveying direction, the corresponding conveyor belt 10 is controlled to switch to either a first mode or a second mode based on the position of the materials 500 on the conveyor belts 10. This allows the materials 500 to intermittently accelerate and catch up with each other. Without affecting the uniform movement of the materials 500 within the second cavity 300, the material spacing between the materials entering the second cavity 300 is shortened, effectively reducing the amount of target material deposited on the cavity wall through the material spacing. This reduces ineffective target material consumption, lowers production costs, and also reduces contamination of the second cavity 300 wall, thus reducing equipment maintenance time. Furthermore, with the same equipment length, the second cavity 300 can accommodate a larger number of materials 500, thereby improving coating efficiency and equipment capacity.

[0119] In some embodiments, the first mode includes conveying material 500 at a first speed.

[0120] The second mode includes: conveying material 500 at a second speed and calculating the acceleration time; when the acceleration time reaches a preset time threshold, conveying material 500 at a first speed. The second speed is greater than the first speed.

[0121] It is understandable that when the conveyor belt 10 is in the first mode, the conveyor belt 10 always conveys the material 500 at a relatively slow and uniform speed. When the conveyor belt 10 is in the second mode, the conveyor belt 10 will move at a variable speed. First, the material 500 is conveyed at a relatively fast and uniform speed. After the material 500 has caught up with the specified distance, the material 500 is then conveyed at a relatively slow and uniform speed.

[0122] In this way, when the m-th conveyor belt is conveying material 500, and the material 500 is about to reach the (m+1)-th conveyor belt, the conveying speed of the m-th conveyor belt can be kept consistent with the conveying speed of the (m+1)-th conveyor belt, preventing the material 500 from moving too fast and causing it to slip or collide with the previous material 500 on the (m+1)-th conveyor belt.

[0123] It is worth noting that the specific value of the time threshold can be set according to actual needs. For example, different conveyor belts 10 can be set with different time thresholds according to their setting position, the total number of conveyor belts 10, the length of the material 500, the production cycle, etc., as long as the material spacing of the multiple materials 500 entering the second cavity 300 is within the allowable range.

[0124] Please see Figure 1 and Figure 6 In some embodiments, after step S501, the conveying control method further includes:

[0125] S601. Determine whether the preheating conditions are met. If yes, proceed to step S602; otherwise, wait for the preheating conditions to be met.

[0126] The preheating condition is used to indicate that the material 500 in the first chamber 100 has been preheated.

[0127] S602, control the preheating conveyor belt 40 to transport material 500 to the first conveyor belt 11.

[0128] In this embodiment, the preheating conditions include: the previous material 500 arriving at the preset target position. The conveying time of the material 500 from the preheating conveyor belt 40 to the target position corresponds to the time required to preheat the material 500.

[0129] Correspondingly, step S601 may include: determining whether the previous material 500 has reached the preset target position; if yes, then proceed to step S602; if no, then return to step S501 and wait for the previous material 500 to reach the target position.

[0130] It is understandable that when the previous material 500 arrives at the target position, the next material 500 has enough time to be preheated in the first chamber 100, so the preheating conveyor belt 40 can transport the first material 500 that has been preheated to the first conveyor belt 11.

[0131] In some embodiments, the preheating condition further includes: there is no material 500 between the preheating conveyor belt 40 and the target location.

[0132] Correspondingly, step S601 may include: determining whether the previous material 500 has arrived at the preset target position and whether there is no material 500 between the preheating conveyor belt 40 and the target position; if yes, then proceed to step S602; if no, then wait for the previous material 500 to arrive at the preset target position and whether there is no material 500 between the preheating conveyor belt 40 and the target position.

[0133] It is understandable that when the previous material 500 arrives at the target position and there is no material 500 between the preheating conveyor belt 40 and the target position, the next material 500 has enough time to be preheated in the first chamber 100, and it is ensured that the next material 500 will not collide with other materials 500 after being output from the first chamber 100. Then the preheating conveyor belt 40 can transport the first material 500 that has been preheated to the first conveyor belt 11.

[0134] Please see Figure 1 and Figure 7 The following is an exemplary description of the conveying control method provided in this embodiment in an application scenario.

[0135] For example, there are four conveyor belts 10, which are sequentially divided into four types according to the conveying direction: a first conveyor belt 11, a second conveyor belt 12, a third conveyor belt 13, and a fourth conveyor belt 14. The first conveyor belt 11 is located at the outlet of the first cavity 100, the first, second, and third conveyor belts 11, 12, and 13 are located in the buffer cavity 200, and the fourth conveyor belt 14 is located in the second cavity 300. The fourth conveyor belt 14 always maintains the first mode. The distance between two adjacent conveyor belts 10 is less than the length of the material 500 and greater than the material spacing within the second cavity 300.

[0136] In this example, there is one long-distance conveyor belt 15 and two short-distance conveyor belts 16. Specifically, the first conveyor belt 11 is a long-distance conveyor belt 15, and the second conveyor belt 12 and the third conveyor belt 13 are short-distance conveyor belts 16.

[0137] In this example, a preheating conveyor belt 40 is provided inside the first cavity 100. The preheating detection module 60 includes a first photoelectric sensor 61 and a second photoelectric sensor 62, which are located at opposite ends of the preheating conveyor belt 40.

[0138] In this example, the target location is at the end of the second conveyor belt 12. The material detection module 50 includes a third photoelectric sensor 51 and a fourth photoelectric sensor 52, which are located at both ends of the first conveyor belt 11, respectively.

[0139] In this example, the position detection module 20 includes a fifth photoelectric sensor 21, a sixth photoelectric sensor 22, and a seventh photoelectric sensor 23. The fifth photoelectric sensor 21 is located between the first conveyor belt 11 and the second conveyor belt 12. The sixth photoelectric sensor 22 is located between the second conveyor belt 12 and the third conveyor belt 13. The seventh photoelectric sensor 23 is located between the third conveyor belt 13 and the fourth conveyor belt 14.

[0140] In this example, all materials 500 are defined according to the order of delivery. For example, the first material 501 is the first material 500 to be preheated, the second material 502 is the second material 500 to be preheated, and so on.

[0141] Please see Figure 1 and Figure 7 Assume that in the first stage, the front end of the first material 501 enters the second cavity 300. The first material 501 is simultaneously located on the second conveyor belt 12, the third conveyor belt 13, and the fourth conveyor belt 14. The sixth photoelectric sensor 22 and the seventh photoelectric sensor 23 detect the first material 501, and the fifth photoelectric sensor 21 outputs a falling edge signal as the first material 501 moves away.

[0142] The second material 502 is located on the first conveyor belt 11. The third photoelectric sensor 51 and the fourth photoelectric sensor 52 detect the second material 502.

[0143] The third material 503 is located on the preheating conveyor belt 40. The first photoelectric sensor 61 and the second photoelectric sensor 62 detect the third material 503.

[0144] At this time, the second conveyor belt 12, the third conveyor belt 13 and the fourth conveyor belt 14 simultaneously convey the first material 501; the fourth conveyor belt 14 is in the first mode, and the second conveyor belt 12 and the third conveyor belt 13 are both in the first mode.

[0145] Meanwhile, the first conveyor belt 11 and the second conveyor belt 12 are not conveying the same material 500 at the same time; the first conveyor belt 11 is in the second mode.

[0146] Thus, the second material 502 first accelerates and moves at a constant speed, then decelerates and moves at a constant speed, causing the second material 502 to catch up with the first material 501 and shorten the material distance between the second material 502 and the first material 501. At the same time, the third material 503 is preheated in the first cavity 100.

[0147] In the second stage, the first material 501 continues to enter the second cavity 300, and the first material 501 is simultaneously located on the second conveyor belt 12, the third conveyor belt 13, and the fourth conveyor belt 14. The sixth photoelectric sensor 22 and the seventh photoelectric sensor 23 detect the first material 501.

[0148] The front end of the second material 502 enters the second conveyor belt 12, so that the second material 502 is simultaneously located on the first conveyor belt 11 and the second conveyor belt 12. The fourth photoelectric sensor 52 and the fifth photoelectric sensor 21 detect the second material 502.

[0149] The third material 503 is located on the preheating conveyor belt 40. The first photoelectric sensor 61 and the second photoelectric sensor 62 detect the third material 503.

[0150] At this time, the second conveyor belt 12, the third conveyor belt 13 and the fourth conveyor belt 14 simultaneously convey the first material 501; the fourth conveyor belt 14, the second conveyor belt 12 and the third conveyor belt 13 are all in the first mode.

[0151] At the same time, the first conveyor belt 11 and the second conveyor belt 12 simultaneously convey the second material 502; the first conveyor belt 11 switches to the first mode.

[0152] Thus, the moving speed of the second material 502 is equal to the moving speed of the first material 501, and the second material 502 moves synchronously with the first material 501. At the same time, the third material 503 continues to be preheated in the first cavity 100.

[0153] In the third stage, the first material 501 continues to enter the second chamber 300, and the first material 501 is simultaneously located on the third conveyor belt 13 and the fourth conveyor belt 14. The seventh photoelectric sensor 23 detects the first material 501, and the sixth material 500 outputs a falling edge signal as the first material 501 moves away.

[0154] The second material 502 is located simultaneously on the first conveyor belt 11 and the second conveyor belt 12. The fourth photoelectric sensor 52 and the fifth photoelectric sensor 21 detect the second material 502.

[0155] The third material 503 is located on the preheating conveyor belt 40. The first photoelectric sensor 61 and the second photoelectric sensor 62 detect the third material 503.

[0156] At this time, the third conveyor belt 13 and the fourth conveyor belt 14 simultaneously convey the first material 501; both the fourth conveyor belt 14 and the third conveyor belt 13 are in the first mode.

[0157] At the same time, the second conveyor belt 12 and the third conveyor belt 13 do not simultaneously convey the same material 500, and the second conveyor belt 12 switches to the first mode; the first conveyor belt 11 and the second conveyor belt 12 simultaneously convey the second material 502, and the first conveyor belt 11 also switches to the first mode.

[0158] Thus, the second material 502 first accelerates and moves at a constant speed, then decelerates and moves at a constant speed, causing the second material 502 to catch up with the first material 501 and further shorten the material distance between the second material 502 and the first material 501. At the same time, the third material 503 continues to be preheated in the first cavity 100.

[0159] Please see Figure 1 and Figure 8 In the fourth stage, the first material 501 continues to enter the second chamber 300, and the first material 501 is simultaneously located on the third conveyor belt 13 and the fourth conveyor belt 14. The seventh photoelectric sensor 23 detects the first material 501.

[0160] The front end of the second material 502 enters the third conveyor belt 13, so that the second material 502 is simultaneously located on the first conveyor belt 11, the second conveyor belt 12, and the third conveyor belt 13. The fourth photoelectric sensor 52, the fifth photoelectric sensor 21, and the sixth photoelectric sensor 22 detect the second material 502.

[0161] The third material 503 is located on the preheating conveyor belt 40. The first photoelectric sensor 61 and the second photoelectric sensor 62 detect the third material 503.

[0162] At this time, the third conveyor belt 13 and the fourth conveyor belt 14 simultaneously convey the first material 501; both the fourth conveyor belt 14 and the third conveyor belt 13 are in the first mode.

[0163] At the same time, the second conveyor belt 12 and the third conveyor belt 13 simultaneously transport the second material 502, and the second conveyor belt 12 switches to the first mode; the first conveyor belt 11 and the second conveyor belt 12 simultaneously transport the second material 502, and the first conveyor belt 11 also switches to the first mode.

[0164] Thus, the moving speed of the second material 502 is equal to the moving speed of the first material 501, and the second material 502 moves synchronously with the first material 501. At the same time, the third material 503 continues to be preheated in the first cavity 100.

[0165] In the fifth stage, the first material 501 fully enters the second cavity 300, and the first material 501 is located on the fourth conveyor belt 14. The seventh photoelectric sensor 23 outputs a falling edge signal as the first material 501 moves away.

[0166] The second material 502 is simultaneously located on the first conveyor belt 11, the second conveyor belt 12, and the third conveyor belt 13. The fourth photoelectric sensor 52, the fifth photoelectric sensor 21, and the sixth photoelectric sensor 22 detect the second material 502.

[0167] The third material 503 is located on the preheating conveyor belt 40. The first photoelectric sensor 61 and the second photoelectric sensor 62 detect the third material 503.

[0168] At this time, the third conveyor belt 13 and the fourth conveyor belt 14 do not simultaneously convey the same material 500, and the third conveyor belt 13 switches to the second mode; the second conveyor belt 12 and the third conveyor belt 13 simultaneously convey the second material 502, and the second conveyor belt 12 switches to the second mode; the first conveyor belt 11 and the second conveyor belt 12 simultaneously convey the second material 502, and the first conveyor belt 11 also switches to the second mode.

[0169] Thus, the second material 502 first accelerates and moves at a constant speed, then decelerates and moves at a constant speed, causing the second material 502 to catch up with the first material 501 and further shorten the material distance between the second material 502 and the first material 501. At the same time, the third material 503 continues to be preheated in the first cavity 100.

[0170] In the sixth stage, the front end of the second material 502 enters the second cavity 300, and the second material 502 is simultaneously located on the second conveyor belt 12, the third conveyor belt 13, and the fourth conveyor belt 14. The sixth photoelectric sensor 22 and the seventh photoelectric sensor 23 detect the second material 502, and the fifth photoelectric sensor 21 outputs a falling edge signal as the second material 502 moves away.

[0171] The third photoelectric sensor 51 and the fourth photoelectric sensor 52 did not detect the presence of material 500 on the first conveyor belt 11.

[0172] The third material 503 is located on the preheating conveyor belt 40. The first photoelectric sensor 61 and the second photoelectric sensor 62 detect the third material 503.

[0173] At this time, the second conveyor belt 12, the third conveyor belt 13 and the fourth conveyor belt 14 simultaneously convey the second material 502; when the fourth conveyor belt 14 is in the first mode, the second conveyor belt 12 and the third conveyor belt 13 are both switched to the first mode.

[0174] At the same time, the first chamber 100 has met the preheating conditions, the chamber door of the first chamber 100 is opened, the preheating conveyor belt 40 transports the third material 503 to the first conveyor belt 11, and transports the fourth material 504 into the first chamber 100.

[0175] Please see Figure 9 In the seventh stage, the second material 502 continues to enter the second chamber 300.

[0176] The third material 503 arrives at the first conveyor belt 11, and the second photoelectric sensor 62 and the third photoelectric sensor 51 detect the third material 503.

[0177] The fourth material 504 enters the first chamber 100, and the first photoelectric sensor 61 detects the fourth material 504.

[0178] At this time, the first conveyor belt 11 and the second conveyor belt 12 are not conveying the same material 500 at the same time, and the first conveyor belt 11 switches to the second mode; the preheating conveyor belt 40 and the first conveyor belt 11 convey the third material 503 at the same time, and the preheating conveyor belt 40 also switches to the second mode.

[0179] The preheating conveyor belt 40 and the first conveyor belt 11 drive the third material 503 away from the first cavity 100 quickly, while the preheating conveyor belt 40 drives the fourth material 504 into the first cavity 100 quickly.

[0180] Please see Figure 7 and Figure 8 By comparing the material spacing of the first material 501 and the second material 502 at different stages, it can be seen that the material spacing after the sixth stage is smaller than the material spacing before the first stage, thus achieving the purpose of shortening the material spacing to meet the material spacing requirements of the second cavity 300.

[0181] Please see Figure 1 and Figure 9 In the eighth stage, the second material 502 is simultaneously located on the second conveyor belt 12, the third conveyor belt 13, and the fourth conveyor belt 14. The third material 503 is located on the first conveyor belt 11. The fourth material 504 is located on the preheating conveyor belt 40.

[0182] At this point, the second material 502 is equivalent to the first material 501 in the first stage, the third material 503 is equivalent to the second material 502 in the first stage, and the fourth material 504 is equivalent to the third material 503 in the first stage. And so on, the conveying process of multiple conveyor belts 10 can form a cycle, and multiple materials 500 can achieve continuous preheating, conveying and chasing.

[0183] It is understandable that by using the first conveyor belt 11, the second conveyor belt 12, the third conveyor belt 13 and the fourth conveyor belt 14, the second material 502 can catch up with the first material 501 three times in the conveying direction, which greatly shortens the material spacing and avoids the phenomenon of material 500 slipping. This is suitable for continuous processing and production.

[0184] Please see Figure 1 and Figure 9 When the first conveyor belt 11 conveys material 500, due to the relatively long length of the first conveyor belt 11, the time it takes for it to independently convey material 500 is relatively long. Material 500 needs to travel a long distance before reaching the second conveyor belt 12. Before that, the first conveyor belt 11 can maintain operation in the second mode, delaying the time to switch to the first mode, so as to drive material 500 away from the first cavity 100 quickly. On the one hand, this can shorten the opening and closing time of the cavity door of the first cavity 100, improve the material exchange rate of the first cavity 100, and increase the equipment capacity; on the other hand, it can quickly catch up with the previous material 500 after material 500 leaves the first cavity 100, greatly shortening the material distance.

[0185] Please see Figure 1 and Figure 8 When material 500 passes through the second conveyor belt 12 and the third conveyor belt 13, since the second conveyor belt 12 and the third conveyor belt 13 are relatively short, material 500 needs to travel a shorter distance to reach the next conveyor belt 10. This reduces the displacement distance and time cycle of material 500 chasing, thereby increasing the frequency of material 500 chasing, so as to make precise control of the final material spacing.

[0186] It is worth noting that the first conveyor belt 11, the second conveyor belt 12, the third conveyor belt 13, and the fourth conveyor belt 14 in the above example are only descriptions of different conveyor belts 10 in the conveying direction when the number of conveyor belts 10 is 4. In practical applications, users can adjust the number and length of conveyor belts 10 according to the chasing distance of materials 500, the number of chasing times, and the spacing between two adjacent conveyor belts 10; similarly, users can also adjust the chasing distance, the number of chasing times, and the spacing between two adjacent conveyor belts 10 according to the number and length of conveyor belts 10, as long as the material spacing of multiple materials 500 entering the second cavity 300 is within the allowable range.

[0187] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments described above should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application.

Claims

1. A conveying control method, characterized in that, Applied to a conveying device; the conveying device includes: n conveyor belts are arranged at intervals along the conveying direction to sequentially convey multiple materials along the conveying direction, where n≥2; the distance between two adjacent conveyor belts is less than the length of the material; wherein, the first conveyor belt is located at the outlet of the first cavity, the nth conveyor belt is located in the second cavity, and the first cavity and the second cavity are arranged sequentially along the conveying direction; The conveying control method includes: In response to the simultaneous conveying of the same material by the m-th conveyor belt and the (m+1)-th conveyor belt, the m-th conveyor belt is controlled to be in the same working mode as the (m+1)-th conveyor belt, 1≤m<n; wherein, the working mode includes a first mode and a second mode, the average conveying speed of the second mode is greater than the average conveying speed of the first mode, and the n-th conveyor belt is in the first mode. In response to the fact that the same material is not being conveyed simultaneously between the m-th conveyor belt and the (m+1)-th conveyor belt, the m-th conveyor belt is controlled to be in the second mode; The first mode includes: conveying the material at a first speed; The second mode includes: conveying the material at a second speed and calculating an acceleration time; when the acceleration time reaches a preset time threshold, conveying the material at the first speed, wherein the second speed is greater than the first speed.

2. The conveying control method as described in claim 1, characterized in that, The conveying device includes a position detection module, which is used to monitor the position of all the materials on the conveying device.

3. The conveying control method as described in claim 1, characterized in that, The conveyor belt includes a long conveyor belt that is close to the first cavity; in the conveying direction, the length of the long conveyor belt is greater than the length of the material.

4. The conveying control method as described in claim 1, characterized in that, The conveyor belt includes a short-pitch conveyor belt that is close to the second cavity; in the conveying direction, the length of the short-pitch conveyor belt is less than the length of the material.

5. The conveying control method as described in claim 1, characterized in that, The conveying device further includes a preheating conveyor belt disposed in the first cavity; the conveying control method further includes: In response to meeting the preheating conditions, the preheating conveyor belt is controlled to transport the material to the first conveyor belt; The preheating conditions include: the previous material arriving at a preset target position, wherein the conveying time of the material from the preheating conveyor belt to the target position corresponds to the time required to preheat the material.

6. The conveying control method as described in claim 5, characterized in that, The target position is located at the end of the first conveyor belt away from the first cavity; in the conveying direction, the length of the first conveyor belt is greater than the length of the material.

7. The conveying control method as described in claim 5, characterized in that, The preheating condition also includes: there is no material on the first conveyor belt.

8. A conveying device, characterized in that, The conveying device includes: n conveyor belts are arranged at intervals along the conveying direction for sequentially conveying multiple materials along the conveying direction, where n≥2; the distance between two adjacent conveyor belts is less than the length of the material; wherein, the first conveyor belt is used to receive the material from the first cavity, the nth conveyor belt is located in the second cavity, and the first cavity and the second cavity are arranged sequentially along the conveying direction; A controller, communicatively connected to the conveyor belt, is used to execute the conveyor control method as described in any one of claims 1 to 7.

9. A processing system, characterized in that, The processing system includes a first cavity, a second cavity, and a conveying device as described in claim 8, the conveying device being used to convey materials.

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