Automatic lower surface edge air blowing system of CVC six-roller cold rolling mill
By designing an automatic lower surface edge wind-brush system on the CVC six-roll cold rolling mill, the PLC and solenoid valve control nozzle group is used to accurately purge oil stains on both ends of the aluminum plate, which solves the difficulty of traditional purge devices to remove the lower surface edge of the aluminum plate. The problem of oil stains has achieved efficient cleaning and improved production efficiency.
Patent Information
- Application Number
- CN202411829700.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-02-14
AI Technical Summary
In the CVC six-roll cold rolling mill, it is difficult for traditional purge devices to effectively remove oil stains on the edges of the lower surface of the aluminum plate, resulting in a decrease in product surface quality and increasing the difficulty and cost of subsequent cleaning processes.
A CVC six-roll cold rolling mill automatic lower surface side wind-brush system is designed, including a mechanical actuator and an electrical actuator. The mechanical actuator includes a jet beam, a nozzle and a wind source, and the electrical actuator includes a PLC and a plurality of solenoid valves. The air source and solenoid valve are controlled by PLC to achieve accurate purge of oil stains at both ends of the aluminum plate.
Effectively remove oil stains on the edge of the lower surface of the aluminum plate, avoid oil stains being rolled back to the upper surface, reduce returned oil spots, improve the quality of the aluminum plate, reduce the difficulty and cost of subsequent cleaning processes, and improve production efficiency.
Smart Images
Figure CN119426386A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of aluminum processing and rolling mill equipment manufacturing, and belongs to an automatic lower surface edge wind blowing system of a CVC six-roller cold rolling mill. Background Art
[0002] The main function of the CVC six-roller cold rolling mill is to control the flatness and shape of the aluminum plate. It can achieve precise control of the shape of the aluminum plate by adjusting the convexity of the rolls. In the aluminum processing industry, the CVC six-roller cold rolling mill has significant advantages in the rolling process due to its unique roll shape design, but the larger roll gap between the intermediate roll and the working roll makes the oil throwing phenomenon to the rolled piece (aluminum plate) more serious. The traditional purge device is difficult to effectively remove the oil stains on the lower surface edge of the rolled piece (aluminum plate), resulting in a decrease in the surface quality of the rolled piece (aluminum plate) product, increasing the difficulty and cost of the subsequent cleaning process.
[0003] At present, the nozzles on the lower surface of the CVC cold rolling mill are opened to blow across the entire width of the workpiece (aluminum plate). This method wastes compressed air, and the nozzles are opened too much, resulting in poor wind pressure dispersion and blowing effect, which ultimately leads to unclean blowing of oil on the rolled workpiece. Blowing across the entire width of the workpiece (aluminum plate) with irregular edge width causes the rolling oil to be blown back to the surface of the rolled workpiece from the edge where there is no rolled workpiece, and the purpose of cleaning the oil cannot be achieved. Summary of the invention
[0004] The purpose of the present invention is to solve the problem that the lower surface nozzles of the current CVC cold rolling mill are opened to blow the entire width of the rolled piece, which wastes compressed air and causes the wind pressure to be dispersed and the blowing is not clean due to excessive opening of the nozzles. An automatic lower surface edge wind blowing system for a CVC six-roll cold rolling mill is proposed.
[0005] An automatic lower surface edge wind blowing system for a CVC six-roller cold rolling mill, the system comprising a mechanical actuator and an electrical actuator;
[0006] The mechanical actuator is installed on the CVC six-roller cold rolling mill. The electrical actuator is used to control the air outlet at both ends of the mechanical actuator during the operation of the CVC six-roller cold rolling mill, so as to clean the oil stains on both ends of the aluminum plate rolled by the CVC six-roller cold rolling mill.
[0007] The mechanical actuator includes a spray beam, a nozzle and a wind source;
[0008] The electrical actuator includes a PLC and multiple solenoid valves;
[0009] The spray beam is installed on the CVC six-roller cold rolling mill. The spray beam has a row of outlets. Nozzles are installed on the corresponding outlets to form multiple nozzle groups. Each nozzle group includes 2 nozzles, and the 2 nozzles of each nozzle group are symmetrically arranged. The positions of the 2 nozzles of each nozzle group correspond to the two ends of the lower surface of each width of the aluminum plate. The inlet of the spray beam is used to introduce the air source;
[0010] The PLC contains the linkage relationship between the width data of the aluminum plate and the corresponding electromagnetic valve, which is used to control the operation of the air source when receiving the start signal or speed signal of the CVC six-roller cold rolling mill. At the same time, the received width data of the aluminum plate is input into the linkage relationship and the control signal of the corresponding electromagnetic valve is output;
[0011] The solenoid valve is used to open after receiving a control signal, so that the air source blows out from a corresponding group of nozzle groups to clean the oil stains at both ends of the aluminum plate.
[0012] Preferably, the system further comprises an analog-to-digital conversion module;
[0013] The analog-to-digital conversion module is used to convert the analog control signal of the corresponding solenoid valve output by the PLC into a digital control signal and output it to the solenoid valve.
[0014] Preferably, the PLC is also used to control the air source to stop working and stop outputting the control signal of the corresponding solenoid valve when receiving a stop signal or a speed signal from the CVC six-roller cold rolling mill.
[0015] Preferably, there are three nozzle groups.
[0016] Preferably, the system further comprises a spray beam fixing mechanism;
[0017] The spray beam is installed on the CVC six-roller cold rolling mill through a spray beam fixing mechanism.
[0018] Preferably, the system further comprises an air duct;
[0019] The wind source is introduced into the inlet of the injection beam through the air duct.
[0020] The beneficial effects of the present invention are:
[0021] If a certain model of CVC six-roll cold rolling mill can be used to roll aluminum plates of three widths, three groups of nozzles will be installed on the jet beam outlet, corresponding to the three widths of aluminum plates. According to the width of the aluminum plate during the rolling process, one group of nozzles corresponding to the width will be controlled to blow away the oil stains on both ends of the aluminum plate of this width.
[0022] The invention can effectively remove oil stains on the edge of the lower surface of the aluminum plate, avoid back printing on the upper surface after coiling, reduce returned oil spots, and improve the quality of the aluminum plate.
[0023] The present invention reduces the difficulty and cost of subsequent cleaning processes and improves production efficiency.
[0024] The present invention integrates a width calculation program and a nozzle group linkage control program in the PLC to achieve precise control of the purging process and clean purging. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is the structural principle diagram of the mechanical actuator;
[0026] Figure 2 This is a control schematic diagram of an automatic lower surface edge wind blowing system for a CVC six-roller cold rolling mill. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.
[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.
[0030] Example:
[0031] Combination Figure 1 and Figure 2 This embodiment is described, a CVC six-roller cold rolling mill automatic lower surface edge wind blowing system, the system includes a mechanical actuator and an electrical actuator;
[0032] The mechanical actuator is installed on the CVC six-roller cold rolling mill. The electrical actuator is used to control the air outlet at both ends of the mechanical actuator during the operation of the CVC six-roller cold rolling mill, so as to clean the oil stains on both ends of the aluminum plate rolled by the CVC six-roller cold rolling mill.
[0033] The mechanical actuator includes a spray beam 1, a nozzle 3 and a wind source 5;
[0034] The electrical actuator includes a PLC 4 and a plurality of solenoid valves 6;
[0035] The spray beam 1 is installed on the CVC six-roller cold rolling mill. The spray beam 1 has a row of outlets. Nozzles 3 are installed on the corresponding outlets to form multiple nozzle groups. Each nozzle group includes two nozzles 3, and the two nozzles 3 of each nozzle group are symmetrically arranged. The positions of the two nozzles 3 of each nozzle group correspond to the two ends of the lower surface of each width of the aluminum plate. The inlet of the spray beam 1 is used to introduce an air source 5.
[0036] PLC4 contains the linkage relationship between the width data of the aluminum plate and the corresponding electromagnetic valve 6, and is used to control the air source 5 to work when receiving the start signal or speed signal of the CVC six-roller cold rolling mill, and at the same time input the received width data of the aluminum plate into the linkage relationship, and output the control signal of the corresponding electromagnetic valve 6;
[0037] The solenoid valve 6 is used to open after receiving a control signal, so that the air source 5 blows out from a corresponding group of nozzle groups to clean the oil stains at both ends of the aluminum plate.
[0038] Specifically, Figure 1 As shown, if the CVC six-roller cold rolling mill can be used to roll aluminum plates of three widths, three groups of nozzles are installed at the outlet of the spray beam 1, corresponding to the aluminum plates of three widths. According to the width of the aluminum plate during the rolling process, a group of nozzles corresponding to the width is controlled to blow, and the oil stains on both ends of the aluminum plate of the corresponding width are blown. When the CVC six-roller cold rolling mill is in operation, that is, the aluminum material is rolled by the CVC six-roller cold rolling mill and slowly output from the CVC six-roller cold rolling mill, the PLC starts to control the air source 5 to work, and at the same time controls the solenoid valve to work, and blows the oil stains on both ends of the aluminum plate output in real time. When the CVC six-roller cold rolling mill stops working, the stop work also ends.
[0039] The spray beam 1 is specifically arranged on the lower surface of the CVC six-roller cold rolling mill. In this embodiment, both ends of the lower surface of the aluminum plate are purged.
[0040] The following describes the components included in this embodiment: it also includes an analog-to-digital conversion module;
[0041] The analog-to-digital conversion module is used to convert the analog control signal corresponding to the solenoid valve 6 output by the PLC 4 into a digital control signal, and output it to the solenoid valve 6.
[0042] The following is a further introduction to the role of PLC:
[0043] PLC4 is also used to control the air source 5 to stop working and stop outputting the control signal of the corresponding solenoid valve 6 when receiving the stop signal or speed signal of the CVC six-roller cold rolling mill.
[0044] Specifically, the CVC six-roller cold rolling mill is started, the purging work is carried out, the CVC six-roller cold rolling mill is stopped, and the purging work is completed.
[0045] The number of nozzle groups is introduced below: there are 3 nozzle groups.
[0046] Specifically, if a certain type of CVC six-roller cold rolling mill can be used to roll three types of aluminum plates, three sets of nozzle groups need to be set up, corresponding to the two ends of the three widths of aluminum plates. The PLC controls the corresponding set of nozzle groups to work according to the width of the aluminum being rolled in real time to purge the aluminum being rolled. Therefore, the number of nozzle groups installed depends on the model of the CVC six-roller cold rolling mill.
[0047] According to the CVC six-roller cold rolling mill model, three aluminum plate widths are obtained, and three corresponding nozzle groups are installed. The corresponding relationship between the three widths and the three nozzle groups is entered in the PLC to start. For a certain input width, the corresponding nozzle group is called to work.
[0048] The following describes the components included in this embodiment: it also includes a spray beam fixing mechanism;
[0049] The spray beam 1 is installed on the CVC six-roller cold rolling mill through a spray beam fixing mechanism.
[0050] The following describes the components included in this embodiment: it also includes an air duct 2;
[0051] The wind source 5 is connected to the inlet of the injection beam 1 through the wind duct 2.
[0052] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.
Claims
1. A CVC six-roller cold rolling mill automatic lower surface edge wind blowing system, characterized in that: The system includes a mechanical actuator and an electrical actuator; The mechanical actuator is installed on the CVC six-roller cold rolling mill. The electrical actuator is used to control the air outlet at both ends of the mechanical actuator during the operation of the CVC six-roller cold rolling mill, so as to clean the oil stains on both ends of the aluminum plate rolled by the CVC six-roller cold rolling mill. The mechanical actuator comprises a spray beam (1), a nozzle (3) and a wind source (5); The electrical actuator includes a PLC (4) and a plurality of solenoid valves (6); The spray beam (1) is installed on a CVC six-roller cold rolling mill. The spray beam (1) is provided with a row of outlets. Nozzles (3) are installed on the corresponding outlets to form a plurality of nozzle groups. Each nozzle group includes two nozzles (3). The two nozzles (3) of each nozzle group are symmetrically arranged. The positions of the two nozzles (3) of each nozzle group correspond to the two ends of the lower surface of each width of the aluminum plate. The inlet of the spray beam (1) is used to introduce an air source (5). The PLC (4) contains the width data of the aluminum plate and the linkage relationship of the corresponding electromagnetic valve (6), and is used to control the operation of the air source (5) when receiving the start signal or speed signal of the CVC six-roller cold rolling mill, and at the same time input the received width data of the aluminum plate into the linkage relationship, and output the control signal of the corresponding electromagnetic valve (6); The solenoid valve (6) is used to open after receiving a control signal, so that the wind source (5) blows out from a corresponding group of nozzle groups to clean the oil stains at both ends of the aluminum plate.
2. The automatic lower surface edge wind blowing system of a CVC six-roller cold rolling mill according to claim 1 is characterized in that: The system also includes an analog-to-digital conversion module; The analog-to-digital conversion module is used to convert the analog control signal corresponding to the solenoid valve (6) output by the PLC (4) into a digital control signal, and output it to the solenoid valve (6).
3. The automatic lower surface edge wind blowing system of a CVC six-roller cold rolling mill according to claim 1 is characterized in that: The PLC (4) is also used to control the air source (5) to stop working and stop outputting the control signal of the corresponding solenoid valve (6) when receiving a stop signal or a speed signal from the CVC six-roller cold rolling mill.
4. The automatic lower surface edge wind blowing system of a CVC six-roller cold rolling mill according to claim 1 is characterized in that: There are 3 sets of nozzles.
5. The automatic lower surface edge wind blowing system of a CVC six-roller cold rolling mill according to claim 1 is characterized in that: The system also includes a spray beam fixing mechanism; The spray beam (1) is installed on the CVC six-roller cold rolling mill through a spray beam fixing mechanism.
6. The automatic lower surface edge wind blowing system of a CVC six-roller cold rolling mill according to claim 1 is characterized in that: The system also includes an air duct (2); The wind source (5) is introduced into the inlet of the injection beam (1) through the wind pipe (2).