A method and system for controlling the speed of a single-drive single-motor roller table

Abstract

A single-drive single-motor roller speed control method includes: obtaining steel information in a heating furnace; sending the steel information in the heating furnace to a control unit, and the control unit controls each roller transmission device corresponding to the steel according to a preset first rule based on the steel information to control the speed of the steel. A single-drive single-motor roller speed control method disclosed in the present invention can more flexibly meet various production situations, thereby improving the yield rate of steel plates or strips and the production efficiency of the processing line.

Description

Technical Field

[0001] The invention relates to the field of heat treatment control, and in particular to a method and system for controlling the speed of a single-drive single-motor roller. Background Art

[0002] In the heat treatment process, the steel plate needs to be fed into the quenching furnace or tempering furnace according to the process speed, and the roller needs to run according to the speed of the steel plate. When the heating furnace is long, the number of furnace rollers is large, generally up to 360 transmission rollers, and the number of steel plates is large, the speed control of the traditional heat treatment production unit roller can only be controlled in groups, and cannot be controlled individually, which seriously affects the yield rate of steel plates or strips and the production efficiency of the processing line. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a method and system for controlling the speed of a single-drive single-motor roller table that overcomes the above problems or at least partially solves the above problems.

[0004] In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

[0005] A method for controlling the speed of a single-drive single-motor roller table, comprising:

[0006] Get the steel information in the heating furnace;

[0007] The steel information in the heating furnace is sent to the control unit. The control unit controls each roller transmission device corresponding to the steel according to the preset first rule based on the steel information to control the speed of the steel.

[0008] Furthermore, information on steel materials in the heating furnace is obtained, and the steel materials include strip steel and steel plates.

[0009] Furthermore, the steel information in the heating furnace is obtained, and the steel information includes the movement state, speed, head position, and tail position information of the steel.

[0010] Furthermore, when the steel information obtained in the heating furnace is that there is no steel, the first rule is preset as follows: each transmission speed of the roller in the heating furnace is set to a basic speed to prevent high-temperature deformation caused by the roller not moving.

[0011] Furthermore, when the movement state of the steel in the steel information in the heating furnace is obtained as the loading mode, the first rule is preset as follows: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment proportionally until the steel loading mode ends.

[0012] Furthermore, when the movement state of the steel in the steel information in the heating furnace is a heating mode, the first rule is preset as follows: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, calculate the preset speed V for heating the steel according to the steel length L1, the heating furnace length L2 and the preset heating time T of the steel, and assign the preset speed V for heating the steel to the current and subsequent rollers until the steel heating mode ends.

[0013] Furthermore, according to the steel length L1, the heating furnace length L2 and the preset heating time T of the steel, the preset speed V of heating the steel is calculated, and the formula of the preset speed V of heating the steel is: V = (L2-L1) / T.

[0014] Furthermore, when the movement state of the steel in the steel information in the heating furnace is the discharging mode, the first rule is preset as follows: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment proportionally until the steel discharging mode ends.

[0015] The present invention also discloses a single-drive single-motor roller speed control system, comprising: a steel material information acquisition unit and a control unit in a heating furnace; wherein:

[0016] A steel material information acquisition unit in a heating furnace is used to acquire steel material information in a heating furnace;

[0017] The control unit controls each roller transmission device corresponding to the steel material according to the preset first rule based on the steel material information to control the speed of the steel material.

[0018] Furthermore, when the movement state of the steel in the steel information in the heating furnace is obtained as the loading mode, the first rule is preset as follows: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment proportionally until the steel loading mode ends.

[0019] The beneficial effects of the above technical solution provided by the embodiment of the present invention include at least:

[0020] The invention discloses a single-drive single-motor roller speed control method, comprising: obtaining steel information in a heating furnace; sending the steel information in the heating furnace to a control unit, wherein the control unit controls each roller transmission device corresponding to the steel according to a preset first rule based on the steel information to control the speed of the steel. The invention discloses a single-drive single-motor roller speed control method, which can more flexibly meet various production situations, thereby improving the yield rate of steel plates or strips and the production efficiency of the processing line.

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a flow chart of a method for controlling the speed of a single-drive single-motor roller conveyor in Example 1 of the present invention;

[0024] Figure 2 This is a schematic diagram of the process layout for heat treating a steel plate in Example 1 of the present invention. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0026] In order to solve the problems existing in the prior art, an embodiment of the present invention provides a method and system for controlling the speed of a single-drive single-motor roller table.

[0027] Example 1

[0028] This embodiment discloses a method for controlling the speed of a single-drive single-motor roller table. Figure 1 ,include:

[0029] The steel information in the heating furnace is obtained; specifically, in this embodiment, the steel information in the heating furnace is obtained, and the steel includes strip steel and steel plate. The steel information includes the movement state, speed, head position, and tail position information of the steel.

[0030] Specifically, the common process layout of heat-treated steel plates is as follows: Figure 2As shown, there are multiple steels and rollers in the heating furnace. Before the heat treatment process starts, the rollers are numbered in sequence from the entrance to the exit of the heating furnace, and the numbers of the rollers are matched with the positions of the rollers one by one, so as to compare the positions of the steels with the positions of the rollers after the steels enter the heating furnace.

[0031] The steel information in the heating furnace is sent to the control unit. The control unit controls each roller transmission device corresponding to the steel according to the preset first rule based on the steel information to control the speed of the steel.

[0032] Specifically, when the steel information in the heating furnace is obtained that there is no steel, the first rule is preset as follows: each transmission speed of the roller in the heating furnace is set to the basic speed to prevent high temperature deformation caused by the roller not moving. It can be understood that when the steel in the heating furnace has not yet entered the processing, each transmission speed of the roller in the heating furnace should be set to the basic speed, generally set to 2m / min. In this embodiment, the roller in the furnace must rotate to prevent high temperature deformation.

[0033] In this embodiment, when the movement state of the steel in the steel information in the heating furnace is obtained as the loading mode, the first rule is preset as follows: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment proportionally until the steel loading mode ends.

[0034] Specifically, it can be understood that when the movement state of the steel is in the loading mode, the steel should be accelerated to enter the heating furnace. When the steel enters the heating furnace, the control unit starts to control from the roller numbered 1. First, it is determined whether the position of the roller numbered 1 is between the head position and the tail position of the steel. When the position of the roller numbered 1 is between the head position and the tail position of the steel, the speed value before the steel enters the heating furnace is given to the current roller, and for the rollers after the current roller, the speed assignment is increased proportionally. For example, the control unit controls the transmission device corresponding to the roller numbered 2, so that the speed of the roller numbered 2 increases relative to the speed of the roller numbered 1, so that the speed of the steel increases from roller No. 1 to roller No. 2. Similarly, for the subsequent rollers, the same method is used until the steel loading mode ends.

[0035] In this embodiment, when the movement state of the steel in the steel information in the heating furnace is a heating mode, the first rule is preset as follows: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, calculate the preset speed V for heating the steel according to the steel length L1, the heating furnace length L2 and the preset heating time T of the steel, and assign the preset speed V for heating the steel to the current and subsequent rollers until the steel heating mode ends.

[0036] It can be understood that after the steel loading mode ends, the entire steel enters the heating furnace, and the steel enters the heating mode. At this time, in order to ensure that the steel is evenly heated, the steel needs to move at a uniform speed in the entire heating furnace, and for different steels, the time required for heating is different. At this time, the steel plate speed can be changed by changing the corresponding roller speed. For example, the steel length L1 is 1m, and the heating furnace length L2 is 10m. When the preset heating time of a certain steel is 1min, the above formula shows that the roller speed can be set to 9m / min at this time. When the preset heating time of a certain steel is 2min, the above formula shows that the roller speed can be set to 4.5m / min at this time. The preset speed V of steel heating is assigned to the current and subsequent rollers until the steel heating mode ends.

[0037] In some preferred embodiments, when the steel movement state in the steel information in the heating furnace is obtained as the discharging mode, the preset first rule is: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence. When a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment in proportion until the steel discharging mode ends. Specifically, the discharging mode is similar to the feeding mode, and this embodiment will not be repeated here.

[0038] The present embodiment discloses a method for controlling the speed of a single-drive single-motor roller, comprising: obtaining steel information in a heating furnace; sending the steel information in the heating furnace to a control unit, wherein the control unit controls each roller drive device corresponding to the steel according to a preset first rule based on the steel information to control the speed of the steel. The single-drive single-motor roller speed control method disclosed by the present invention can more flexibly meet various production situations, thereby improving the yield rate of steel plates or strips and the production efficiency of the processing line.

[0039] Example 2

[0040] This embodiment discloses a single-drive single-motor roller speed control system, comprising: a steel material information acquisition unit and a control unit in a heating furnace; wherein:

[0041] A steel material information acquisition unit in a heating furnace is used to acquire steel material information in a heating furnace;

[0042] The control unit controls each roller transmission device corresponding to the steel material according to the preset first rule based on the steel material information to control the speed of the steel material.

[0043] In this embodiment, when the steel information obtained in the heating furnace is that there is no steel, the preset first rule is: each transmission speed of the roller in the heating furnace is set to a basic speed to prevent high-temperature deformation caused by the roller not moving.

[0044] In this embodiment, when the steel movement state in the steel information in the heating furnace is the loading mode, the first rule is preset as follows: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence.

[0045] When the steel is between the head and tail positions, the real-time speed of the steel is assigned to the current roller, and for the rollers after the current roller, the speed assignment is increased proportionally until the steel loading mode ends.

[0046] In this embodiment, when the movement state of the steel in the steel information in the heating furnace is a heating mode, the first rule is preset as follows: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, calculate the preset speed V for heating the steel according to the steel length L1, the heating furnace length L2 and the preset heating time T of the steel, and assign the preset speed V for heating the steel to the current and subsequent rollers until the steel heating mode ends.

[0047] In this embodiment, the preset speed V of steel heating is calculated according to the steel length L1, the heating furnace length L2 and the preset heating time T of the steel. The formula of the preset speed V of steel heating is: V=(L2-L1) / T.

[0048] In this embodiment, when the movement state of the steel in the steel information in the heating furnace is the discharging mode, the first rule is preset as follows: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment proportionally until the steel discharging mode ends.

[0049] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process can be rearranged without departing from the scope of protection of the present disclosure. The attached method claims present the elements of the various steps in an exemplary order and are not intended to be limited to the specific order or hierarchy described.

[0050] In the above detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are clearly stated in each claim. On the contrary, as reflected in the appended claims, the invention is in a state of having less than all the features of the disclosed individual embodiments. Therefore, the appended claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

[0051] Those skilled in the art will also appreciate that the various illustrative logic blocks, modules, circuits, and algorithmic steps described in conjunction with the embodiments herein can all be implemented as electronic hardware, computer software, or a combination thereof. In order to clearly illustrate the interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above around their functions. Whether such functions are implemented as hardware or software depends on specific applications and the design constraints imposed on the entire system. A skilled person can implement the described functions in an alternative manner for each specific application, but such implementation decisions should not be interpreted as departing from the scope of protection of the present disclosure.

[0052] The steps of the method or algorithm described in conjunction with the embodiments herein may be directly embodied as hardware, a software module executed by a processor, or a combination thereof. The software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is connected to the processor so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The ASIC may be located in a user terminal. Of course, the processor and the storage medium may also be present in a user terminal as discrete components.

[0053] For software implementation, the techniques described in this application can be implemented with modules (e.g., procedures, functions, etc.) that perform the functions described in this application. These software codes can be stored in a memory unit and executed by a processor. The memory unit can be implemented within the processor or outside the processor. In the latter case, it is coupled to the processor in a communication manner via various means, which are well known in the art.

[0054] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but it should be recognized by those skilled in the art that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of protection of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the word is covered in a manner similar to the term "including", just as "including," is explained as a transitional word in the claims. In addition, any term "or" used in the specification of the claims is intended to mean "non-exclusive or".

Claims

1. A method for controlling the speed of a single-drive single-motor roller table, characterized in that: include: Get the steel information in the heating furnace; The steel information in the heating furnace is sent to the control unit, and the control unit controls each roller transmission device corresponding to the steel according to the preset first rule based on the steel information to control the speed of the steel; When the steel movement state in the steel information in the heating furnace is obtained as the charging mode, the first preset rule is: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence. When a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment in proportion until the steel charging mode ends; When the steel movement state in the steel information in the heating furnace is the heating mode, the first preset rule is: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence. When a roller position is between the head and tail positions of the steel for the first time, calculate the preset speed V of steel heating according to the steel length L1, the heating furnace length L2 and the preset heating time T of the steel, and assign the preset speed V of steel heating to the current and subsequent rollers until the steel heating mode ends; calculate the preset speed V of steel heating according to the steel length L1, the heating furnace length L2 and the preset heating time T of the steel, and the formula of the preset speed V of steel heating is: V=(L2-L1) / T; When the movement state of the steel in the steel information in the heating furnace is the discharging mode, the first preset rule is: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail position of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment proportionally until the steel discharging mode ends.

2. A method for controlling the speed of a single-drive single-motor roller table as claimed in claim 1, characterized in that: Get information about steel materials in the heating furnace, including strip steel and steel plates.

3. A method for controlling the speed of a single-drive single-motor roller table as claimed in claim 1, characterized in that: Obtain the steel information in the heating furnace, which includes the movement state, speed, head position, and tail position information of the steel.

4. A method for controlling the speed of a single-drive single-motor roller table as claimed in claim 1, characterized in that: When the steel information obtained in the heating furnace is that there is no steel, the first preset rule is: each transmission speed of the roller in the heating furnace is set to a basic speed to prevent high-temperature deformation caused by the roller not moving.

5. A single-drive single-motor roller speed control system, characterized in that: include: Steel information acquisition unit and control unit in the heating furnace; wherein: A steel material information acquisition unit in a heating furnace is used to acquire steel material information in a heating furnace; The control unit controls each roller transmission device corresponding to the steel material according to the preset first rule based on the steel material information to control the speed of the steel material; When the steel movement state in the steel information in the heating furnace is obtained as the charging mode, the first preset rule is: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence. When a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment in proportion until the steel charging mode ends; When the steel movement state in the steel information in the heating furnace is the heating mode, the first preset rule is: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail positions of the steel in sequence. When a roller position is between the head and tail positions of the steel for the first time, calculate the preset speed V of steel heating according to the steel length L1, the heating furnace length L2 and the preset heating time T of the steel, and assign the preset speed V of steel heating to the current and subsequent rollers until the steel heating mode ends; calculate the preset speed V of steel heating according to the steel length L1, the heating furnace length L2 and the preset heating time T of the steel, and the formula of the preset speed V of steel heating is: V=(L2-L1) / T; When the movement state of the steel in the steel information in the heating furnace is the discharging mode, the first preset rule is: obtain the head position, tail position and real-time speed of the steel, and compare each roller position with the head and tail position of the steel in sequence; when a roller position is between the head and tail positions of the steel for the first time, assign the real-time speed of the steel to the current roller, and for the rollers after the current roller, increase the speed assignment proportionally until the steel discharging mode ends.

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