Multi-scheme automatic packaging control system for shaped bar production line and working method of multi-scheme automatic packaging control system

Abstract

The invention relates to a profile bar production line multi-scheme automatic packaging control system which comprises a programmable controller, an HMI interaction system, a correlation type photoelectric detection switch, a frequency conversion conveying roller way, a bundling machine and a forming machine, bars are placed on the frequency conversion conveying roller way, and the correlation type photoelectric detection switch, the bundling machine and the forming machine are sequentially arranged in the advancing direction of the bars. The HMI interaction system, the correlation type photoelectric detection switch, the bundling machine and the forming device are all connected with the PLC. According to the multi-scheme automatic packaging control system for the shaped bar production line and the working method of the multi-scheme automatic packaging control system, unmanned full-automatic operation of the bundling section can be achieved, the labor cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of metallurgical rolling, and in particular to a multi-scheme automatic packaging control system for a profile bar production line and a working method thereof. Background Art

[0002] At present, in the continuous production process of bar and profile production lines, the baling process is mostly operated manually by workers, or by workers operating balers, which results in high labor costs and low work efficiency. Summary of the invention

[0003] In order to solve the technical problems existing in the prior art, the present invention provides a multi-scheme automatic packaging control system for a profile bar production line.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A multi-scheme automatic packaging control system for a profiled bar production line comprises a programmable controller, an HMI interactive system, a through-beam photoelectric detection switch, a variable frequency transport roller, a baler and a former, wherein the bars are placed on the variable frequency transport roller, the through-beam photoelectric detection switch, the baler and the former are arranged in sequence along the direction in which the bars move, and the HMI interactive system, the through-beam photoelectric detection switch, the baler and the former are respectively connected to the programmable controller via a communication cable.

[0006] As a preferred technical solution, the multi-scheme automatic packaging control system of the profile bar production line also includes a variable frequency speed regulation device, which is connected to the variable frequency transport roller, and the variable frequency speed regulation device is connected to the programmable controller via a communication cable.

[0007] As a preferred technical solution, a working method of a multi-scheme automatic packaging control system for a profiled bar production line includes the following steps:

[0008] Step 1: Select the corresponding bundling solution according to the bar specifications;

[0009] Step 2: Start the variable frequency transport roller, detect the incoming steel signal through the photoelectric detection switch, and judge whether the bar has reached the position set by the current bundling plan;

[0010] Step 3: After the bars are in place, the variable frequency transport roller is controlled to stop, and the corresponding baler and former in the baling plan are started to form and bundle;

[0011] Step 4: After the bundling is completed, start the variable frequency transport roller to transport the bars to the downstream section.

[0012] As a preferred technical solution, in step 2, if the rod is not in place, the variable frequency transport roller continues to run to transport the rod forward until the rod is in place.

[0013] As a preferred technical solution, in step three, after the baler and the former have formed and bundled the bars, it is determined whether re-bundling is needed according to the baling plan. If so, the position where re-bundling is needed in the baling plan is read and the variable frequency roller is started to transport the bars to the front of the through-beam photoelectric detection switch, and steps two and three are repeated until re-bundling is no longer needed, and step four is performed. Otherwise, step four is performed directly.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The multi-scheme automatic packaging control system for the profile bar production line of the present invention and the working method thereof can realize unmanned and fully automatic operation of the bundling section, reduce labor costs, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an operation flow chart of the multi-scheme automatic packaging control system of the profile bar production line of the present invention;

[0017] Figure 2 It is a schematic diagram of the bundling scheme of the bar production line multi-scheme automatic packaging control system of the present invention for the bars of the current specification;

[0018] Figure 3 It is a schematic diagram of the equipment layout of the multi-scheme automatic packaging control system of the profile bar production line of the present invention;

[0019] Figure 4 It is a schematic diagram of the first bundling of the multi-scheme automatic bundling control system of the profile bar production line of the present invention.

[0020] Figure 5 It is a schematic diagram of the second bundling of the multi-scheme automatic bundling control system of the profile bar production line of the present invention. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with specific implementation methods:

[0022] A multi-scheme automatic packaging control system for a bar production line, including a programmable controller, an HMI interactive system, a beam-type photoelectric detection switch, a variable frequency transport roller, a variable frequency speed regulating device, a baler, and a former, such as Figure 3 As shown, the bars are placed on a variable frequency transport roller, the variable frequency speed regulating device is connected to the variable frequency transport roller, the through-beam photoelectric detection switch, the baler and the former are arranged in sequence along the forward direction of the bars, and the HMI interactive system, the through-beam photoelectric detection switch, the variable frequency speed regulating device, the baler and the former are respectively connected to the programmable controller through communication cables.

[0023] A programmable controller, or PLC, uses a type of programmable memory to store programs internally, execute user-oriented instructions such as logic operations, sequential control, timing, counting and arithmetic operations, and control various types of machinery or production processes through digital or analog input / output.

[0024] HMI, or human-machine interface, is also called human-machine interface (also known as user interface or user interface). It is the medium for interaction and information exchange between the system and the user. It realizes the conversion between the internal form of information and the form acceptable to humans.

[0025] like Figure 1 As shown, a working method of a multi-scheme automatic packaging control system for a profile bar production line includes the following steps:

[0026] Step 1: Select the corresponding bundling solution according to the bar specifications;

[0027] Step 2: Start the variable frequency transport roller, detect the incoming steel signal through the photoelectric detection switch, and judge whether the bar has reached the position set by the current bundling plan. If the bar has not reached the position, the variable frequency transport roller will continue to run to transport the bar forward until the bar reaches the position.

[0028] Step 3: After the bars are in place, the variable frequency transport roller is controlled to stop, and the corresponding baler and former in the baling plan are started to form and bundle. Then, it is determined whether it is necessary to bundle again according to the baling plan. If so, the position where the bars need to be bundled again in the baling plan is read and the variable frequency roller is started to transport the bars to the front of the through-beam photoelectric detection switch. Steps 2 and 3 are repeated until it is no longer necessary to bundle again, and step 4 is performed. Otherwise, the next step is performed directly.

[0029] Step 4: After the bundling is completed, start the variable frequency transport roller to transport the bars to the downstream section.

[0030] Take the production line of three balers as an example. Figure 2 As shown: Currently, all three balers are selected, and the displacement length of each baling cycle is set to 6 meters.

[0031] like Figure 4 As shown: The through-beam photoelectric detection switch includes a metal detector. When a bar reaches the metal detector position, the displacement L1 of the bar is calculated. When L1 is equal to the displacement length of 6 meters compiled in the packaging plan, the variable frequency roller is stopped and the former and baler are started for baling. After the current baling is completed, the second baling plan is called; the variable frequency roller is started and the displacement L2 of the bar is calculated.

[0032] like Figure 5As shown in the figure: when L2 is equal to the second displacement length of 6 meters in the packaging plan, the variable frequency transport roller is stopped and the former and baler are started to perform baling. Figure 1 The bundling scheme shown automatically determines that the bundling work is finished, and starts the variable frequency roller to transport the bars to the downstream section.

[0033] The system can compile and store a variety of baling plans, making it convenient for production participants to call them at the right time.

[0034] This embodiment is only a further explanation of the invention rather than a limitation of the invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as they are within the scope of the claims of the invention, they are protected by the patent law.

Claims

1. A multi-scheme automatic packaging control system for a profile bar production line, characterized in that: It includes a programmable controller, an HMI interactive system, a through-beam photoelectric detection switch, a variable frequency transport roller, a baler, and a former. The bars are placed on the variable frequency transport roller. The through-beam photoelectric detection switch, the baler, and the former are arranged in sequence along the forward direction of the bars. The HMI interactive system, the through-beam photoelectric detection switch, the baler, and the former are respectively connected to the programmable controller through a communication cable.

2. The multi-scheme automatic packaging control system for the profile bar production line according to claim 1 is characterized in that: It also includes a frequency conversion speed regulating device, which is connected to the frequency conversion transport roller, and the frequency conversion speed regulating device is connected to the programmable controller through a communication cable.

3. The working method of a multi-scheme automatic packaging control system for a profile bar production line according to claim 1 is characterized in that: The method comprises the following steps: Step 1: Select the corresponding bundling solution according to the bar specifications; Step 2: Start the variable frequency transport roller, detect the incoming steel signal through the photoelectric detection switch, and judge whether the bar has reached the position set by the current bundling plan; Step 3: After the bars are in place, the variable frequency transport roller is controlled to stop, and the corresponding baler and former in the baling plan are started to form and bundle; Step 4: After the bundling is completed, start the variable frequency transport roller to transport the bars to the downstream section.

4. According to the working method of a multi-scheme automatic packaging control system for a profile bar production line according to claim 3, it is characterized in that: In the step 2, if the bar is not in place, the variable frequency transport roller continues to operate to transport the bar forward until the bar is in place.

5. According to the working method of a multi-scheme automatic packaging control system for a profile bar production line according to claim 3, in the step three, after the baler and the former have formed and bundled the bars, it is determined whether it is necessary to bundle again according to the bundling scheme. If so, the position where the bars need to be bundled again in the bundling scheme is read and the variable frequency roller is started to transport the bars to the front of the opposing photoelectric detection switch, and steps two and three are repeated until it is no longer necessary to bundle again, and step four is performed, otherwise step four is performed directly.

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