CN111593280A

CN111593280A - Integrated ingot adding system based on multiple targets

Info

Publication number: CN111593280A
Application number: CN202010565224.2A
Authority: CN
Inventors: 陈丽娟; 陈刚; 周诗正; 刘傲; 李金�; 唐华
Original assignee: Wuhan Iron and Steel Co Ltd
Current assignee: Wuhan Iron and Steel Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-08-28

Abstract

The invention discloses an integrated ingot adding system based on multiple targets, which comprises an AGV trolley, a zinc adding hoisting device and a monitoring control device, wherein the AGV trolley comprises a trolley body, a lifting assembly, a turnover assembly and a zinc ingot supporting plate for bearing zinc ingots; monitoring control device includes the PLC controller, the PLC controller links to each other in order carrying out the communication with AGV dolly, zinc hoisting accessory respectively, controls AGV dolly load and corresponds zinc ingot of kind and move to hanging the spindle position to control zinc hoisting accessory and move to getting the spindle position, take out and hoist the zinc ingot on the AGV dolly to the zinc pot in. The invention has the beneficial effects that the design of the lifting and overturning AGV trolley and the zinc-adding hoisting device realizes the unmanned auxiliary butt joint of the zinc ingots between the two running devices; and the completely unmanned zinc adding operation from ingot conveying, ingot loading to ingot adding is realized under the control action of the PLC controller.

Description

Integrated ingot adding system based on multiple targets

Technical Field

The invention relates to the technical field of strip steel continuous hot galvanizing, in particular to an integrated ingot feeding system based on multiple targets.

Background

With the development of social economy, the demand of industries such as automobiles and household appliances for high-quality hot-dip galvanized plates is increasing greatly, and the requirements of the industries on the surface quality of the galvanized plates are also increasing. In the galvanizing production process, the surface quality of the galvanized sheet is directly influenced by the change of the zinc liquid composition in the zinc pot, the stability of the zinc bath and the fluctuation of the zinc liquid level. Because the zinc pot area is in a high-temperature environment for a long time, potential safety hazards exist when workers carry out ingot loading operation nearby, and unmanned operation is urgently needed to be realized.

At present, automatic zinc adding devices are put into some cold rolling plants, the liquid level of a zinc bath in a zinc pot is taken as a control target, and Chinese invention patent 'a zinc melting device for a hot galvanizing unit', with the publication number of CN102230149B, provides a zinc melting device, realizes closed-loop control on the liquid level change of the zinc liquid level, solves the problem of large zinc liquid temperature fluctuation caused by difficult control of manual zinc adding speed, but does not completely realize unmanned operation of adding ingots in a zinc pot area; chinese patent publication No. CN102373391B, "an automatic zinc adding device and a control method thereof", provides an automatic zinc adding device and a control method thereof, which can realize full automation of a zinc adding process, but cannot intelligently sense changes of zinc bath components, make a decision of selecting zinc ingots, and transport zinc ingots from a zinc ingot storage to the vicinity of a zinc pot, or require manual participation.

Disclosure of Invention

The invention aims to provide a fully unmanned integrated ingot adding system based on multiple targets, which is used for automatically taking ingots, transporting ingots, and loading ingots to adding ingots, aiming at the defects of the prior art.

The technical scheme adopted by the invention is as follows: an integrated ingot feeding system based on multiple targets comprises an AGV trolley, a zinc feeding hoisting device and a monitoring control device, wherein the AGV trolley comprises a trolley body, lifting components, a turnover component and a zinc ingot supporting plate for bearing zinc ingots, a group of lifting components are respectively installed at the front end and the rear end of the trolley body, the driving end of each lifting component is connected with a lifting frame, a bearing seat is arranged at the top of each lifting frame, a bearing in each bearing seat is matched with a rotating shaft, the rotating shaft is connected with the bottom of the zinc ingot supporting plate, and one end of each rotating shaft is connected with the turnover component; the lifting assembly can drive the lifting frame, the overturning assembly and the zinc ingot supporting plate to move up and down; the overturning assembly drives the zinc ingot supporting plate to overturn through a rotating shaft; the AGV trolley is used for transporting zinc ingots; the zinc-adding hoisting device is used for hoisting a zinc ingot on the AGV to a zinc pot; monitoring control device includes the PLC controller, the PLC controller links to each other in order carrying out the communication with AGV dolly, zinc hoisting accessory respectively, controls AGV dolly load and corresponds zinc ingot of kind and move to hanging the spindle position to control zinc hoisting accessory and move to getting the spindle position, take out and hoist the zinc ingot on the AGV dolly to the zinc pot in.

According to the scheme, each lifting assembly comprises two support frames, a cross beam and a lifting driving device, and the two support frames are vertically fixed on the vehicle body; two ends of the cross beam are respectively connected with the upper ends of the two support frames; the lifting driving device is installed on the cross beam, and the driving end of the lifting driving device is connected with the lifting frame.

According to the scheme, the lifting assembly further comprises guide mechanisms symmetrically arranged on two sides of the lifting frame, each guide mechanism comprises a guide sleeve and a guide rod matched with the guide sleeve, the guide sleeves are arranged at the tops of the support frames or the cross beams, the upper ends of the guide rods are connected with the lifting frame, and the guide rods can slide up and down in the guide sleeves along with the lifting frame.

According to the scheme, the gravity sensing device is installed at the bottom of the zinc ingot supporting plate.

According to the scheme, the zinc ingot supporting plate is provided with a zinc ingot fixing structure which comprises two limiting strips arranged in parallel and a telescopic zinc ingot fixing rod, wherein the limiting strips are matched with limiting grooves at the bottoms of zinc ingots, and the zinc ingot fixing rod is matched with fixing holes formed in the zinc ingots.

According to the scheme, the head of the vehicle body is also provided with the display screen.

According to the scheme, the zinc-adding hoisting device comprises a movable guide rail and an electric hoist crane which moves along the length direction of the movable guide rail, wherein the tail end of the movable guide rail is provided with a limit switch; the electric hoist is provided with a zinc ingot hook; the motor of the electric hoist crane is provided with an encoder, an output signal of the encoder is communicated with the PLC through a network, and the PLC drives the motor of the electric hoist crane to act.

According to the scheme, the zinc ingot hook is L-shaped, the upper end of the vertical section of the zinc ingot hook is connected with the driving end of the electric hoist, the horizontal section of the zinc ingot hook is matched with a hoisting hole formed in a zinc ingot, and the horizontal section of the zinc ingot hook can be inserted into the hoisting hole of the zinc ingot; the electric hoist crane is characterized in that an encoder is installed on a motor of the electric hoist crane, an output signal of the encoder can be communicated with the PLC through a network, and an output module of the PLC drives the motor of the electric hoist crane to act.

According to the scheme, the monitoring control device further comprises a liquid level sensor, zinc liquid component online detection equipment, a zinc liquid temperature sensor and a plate temperature sensor, wherein the liquid level sensor is arranged above the zinc pot; the detection head of the zinc liquid component online detection equipment and the zinc liquid temperature sensor are arranged in the zinc pot; the liquid level sensor, the zinc liquid component online detection device, the zinc liquid temperature sensor and the plate temperature sensor are respectively connected with the PLC, wherein the liquid level sensor is used for detecting the liquid level of zinc liquid in the zinc pot and sending the liquid level information to the PLC; the online zinc liquid component measuring equipment is used for detecting the components of the zinc liquid in the zinc pot and sending the zinc liquid component information to the PLC; the zinc liquid temperature sensor is used for detecting the temperature of the zinc liquid and sending the temperature information to the PLC; the plate temperature sensor is used for detecting the temperature of the strip steel and sending the temperature information to the PLC.

The invention has the beneficial effects that: according to the invention, through designing the lifting and overturning AGV trolley and the zinc adding hoisting device, unmanned auxiliary butt joint of zinc ingots in the whole process from ingot taking to ingot hanging of a zinc ingot warehouse is realized; the fully unmanned zinc adding operation from ingot taking, ingot transporting and ingot loading to ingot adding is realized under the control action of the PLC, the problem of large temperature fluctuation of zinc liquid caused by difficulty in controlling the manual zinc adding speed is solved, the stability of the production process is improved, and the surface quality of the product is favorably improved; the system designs various detection devices, realizes the stabilization of the effective aluminum content in the zinc liquid based on the dual-objective online control of the zinc liquid component temperature in the zinc liquid and the stability of the zinc liquid level in the zinc pot, controls the formation of zinc slag, and effectively reduces the zinc slag defect on the surface of the strip steel.

Drawings

FIG. 1 is an elevation view of an AGV cart in accordance with an embodiment of the present invention.

FIG. 2 is a schematic diagram illustrating the AGV according to this embodiment in a tilted position.

FIG. 3 is a front view of the zincating hoist in this embodiment.

Wherein: 1. a limiting strip; 2. a zinc ingot fixing rod; 3. a zinc ingot supporting plate; 4. a lift drive; 5. a guide mechanism; 6. a display screen; 7. an AGV trolley; 8. a turnover driving device; 9. a support frame; 10. a lifting frame; 11. a zinc ingot hook; 12. an electric hoist is hung; 13. and (3) zinc ingots.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

An integrated ingot feeding system based on multiple targets comprises an AGV trolley 7, a zinc feeding hoisting device and a monitoring control device, wherein the AGV trolley 7 runs in a specified area of a factory building and is used for transporting zinc ingots; the zinc-adding hoisting device is used for hoisting the zinc ingots 13 on the AGV trolley 7 into a zinc pot; the monitoring control device comprises a PLC controller, and the PLC controller is respectively connected with the AGV trolley 7 and the zinc-adding hoisting device for communication; the PLC controls the AGV trolley 7 to load corresponding zinc ingots 13 to move to an ingot hanging position, controls the zinc adding hoisting device to move to an ingot taking position, and takes out and hoists the zinc ingots 13 on the AGV trolley 7 to a zinc pot. In the invention, each device and the PLC are in wireless communication.

Preferably, as shown in fig. 1 and 2, the AGV cart 7 automatically travels in a region specified in a plant area, and includes a cart body, a lifting assembly, a turning assembly, and a zinc ingot supporting plate 3 for bearing a zinc ingot 13, a set of lifting assembly is respectively installed at the front end and the rear end of the cart body, a driving end of the lifting assembly is connected to a lifting frame 10, a bearing seat is installed at the top of the lifting frame 10, a bearing in the bearing seat is adapted to a rotating shaft, the rotating shaft is connected to the bottom of the zinc ingot supporting plate 3, and one end of the rotating shaft is connected to the turning assembly; the lifting assembly can drive the lifting frame 10, the overturning assembly and the zinc ingot supporting plate 3 to move up and down; the overturning assembly drives the zinc ingot supporting plate 3 to overturn through a rotating shaft.

In the invention, each lifting assembly comprises two support frames 9, a cross beam and a lifting driving device 4, wherein the two support frames 9 are vertically fixed on a vehicle body; the two ends of the cross beam are respectively connected with the upper ends of the two support frames 9; the lifting driving device 4 is arranged on the cross beam, and the driving end of the lifting driving device 4 is connected with the lifting frame 10. In this embodiment, the lifting driving device 4 may be a lifting cylinder. Preferably, the lifting assembly further comprises guide mechanisms 5 symmetrically arranged on two sides of the lifting frame 10, the lower end of each guide mechanism 5 is arranged at the top of the support frame 9 or the top of the cross beam, and the upper end of each guide mechanism 5 is connected with the bottom of the lifting frame 10. In this embodiment, the guide mechanism 5 includes a guide sleeve and a guide rod adapted to the guide sleeve, the guide sleeve is disposed on the top of the support frame 9 or the cross beam, the upper end of the guide rod is connected to the lifting frame 10, and the guide rod can slide up and down in the guide sleeve along with the lifting frame 10.

In this embodiment, the turnover assembly includes turnover driving device 8, can be turbine worm speed reducer, can realize the unilateral upset. And a gravity sensing device for measuring the mass of the zinc ingot 13 is arranged at the bottom of the zinc ingot supporting plate 3. Still be equipped with zinc ingot 13 fixed knot on the zinc ingot backup pad 3 and construct, including two parallel arrangement's spacing 1 and a telescopic zinc ingot dead lever 2, wherein spacing 1 is the spacing groove looks adaptation of zinc ingot 13 bottom, zinc ingot dead lever 2 with set up the fixed orifices looks adaptation on zinc ingot 13. The head of the vehicle body is also provided with a display screen 6 for displaying the information of the zinc ingots 13 being conveyed in real time, specifically including the types of the zinc ingots 13, the height of the zinc ingots 13, the time when the zinc ingots are conveyed to a specified position and the like.

Preferably, as shown in fig. 3, the zincification hoisting device comprises a moving guide rail and an electric hoist crane 12 moving along the length direction of the moving guide rail, wherein the tail end of the moving guide rail is provided with a limit switch; the electric hoist crane 12 is provided with an L-shaped zinc ingot hook 11, the upper end of the vertical section of the zinc ingot hook 11 is connected with the driving end of the electric hoist crane 12, the horizontal section of the zinc ingot hook 11 is matched with a hoisting hole formed in a zinc ingot 13, and the horizontal section of the zinc ingot hook 11 can be inserted into the hoisting hole of the zinc ingot 13; an encoder is installed on a motor of the electric hoist crane 12, an output signal of the encoder can be communicated with a PLC (programmable logic controller) through a network, and an output module of the PLC drives the motor of the electric hoist crane to act. In this embodiment, the zinc-adding hoisting device uses the electric hoist 12 capable of translating to hang the zinc ingot 13 from the zinc ingot supporting plate 3 on which the AGV cart 7 is turned on one side to the L-shaped zinc ingot hook 11, and hoists the zinc ingot 13 into the zinc pot.

In the invention, the monitoring control device also comprises a liquid level sensor, zinc liquid component online detection equipment, a zinc liquid temperature sensor and a plate temperature sensor, wherein the liquid level sensor is arranged above the zinc pot; the detection head of the zinc liquid component online detection equipment and the zinc liquid temperature sensor are arranged in the zinc pot; the liquid level sensor, the zinc liquid component online detection device, the zinc liquid temperature sensor and the plate temperature sensor are respectively connected with the PLC, wherein the liquid level sensor is used for detecting the liquid level of zinc liquid in the zinc pot and sending the liquid level information to the PLC; the zinc liquid component online detection equipment is used for monitoring the zinc liquid components in the zinc pot and sending the zinc liquid component information to the PLC; the zinc liquid temperature sensor is used for detecting the temperature of the zinc liquid and sending the temperature information to the PLC; the plate temperature sensor is used for detecting the temperature of the strip steel and sending the temperature information to the PLC. In this embodiment, the structures and functions of each component in the monitoring and control device, such as each sensor and the PLC controller, are all present, and are not described herein again.

In this embodiment, the PLC controller includes an input module and an output module, receives signals such as temperature, liquid level, zinc liquid composition through the input module, and sends a control instruction to the AGV carriage 7 and the zinc-adding hoisting device through the output module. The AGV trolley 7 runs in a designated area; the PLC receives zinc liquid level information, zinc liquid component information and the like in the zinc pot, controls the AGV trolley 7 to move to a zinc ingot library, turns over the zinc ingot supporting plate 3 after loading zinc ingots 13 of a set type to move to an ingot hanging position, and drives the whole zinc ingots 13 to turn over to the side; the PLC simultaneously sends a control signal to the zinc adding hoisting device, controls the electric hoist crane 12 to move to the ingot taking position, then puts the zinc ingot hook 11 down, and moves horizontally to the direction of the zinc ingot 13 after putting to the specified height until the horizontal section of the zinc ingot hook 11 completely penetrates into the hoisting hole of the zinc ingot 13, and then lifts upwards; when the gravity sensing device of the AGV trolley 7 senses that the zinc ingot 13 is lifted, the zinc ingot fixing rod 2 at the lower part retracts downwards, the electric hoist crane 12 moves in the opposite direction from the zinc ingot 13 until the AGV trolley 7 is completely separated from the zinc ingot 13, the AGV trolley 7 returns to the zinc ingot 13 warehouse, and the zinc ingot 13 is hoisted by the zinc hoisting crane device to load the zinc ingot to the zinc pot.

It will be understood that the foregoing is only illustrative of the principles of the invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. The integrated ingot adding system based on multiple targets is characterized by comprising an AGV trolley, a zinc adding hoisting device and a monitoring control device, wherein the AGV trolley comprises a trolley body, lifting components, a turnover component and a zinc ingot supporting plate for bearing zinc ingots; the lifting assembly can drive the lifting frame, the overturning assembly and the zinc ingot supporting plate to move up and down; the overturning assembly drives the zinc ingot supporting plate to overturn through a rotating shaft; the AGV trolley is used for transporting zinc ingots; the zinc-adding hoisting device is used for hoisting a zinc ingot on the AGV to a zinc pot; monitoring control device includes the PLC controller, the PLC controller links to each other in order carrying out the communication with AGV dolly, zinc hoist and mount respectively, and control AGV dolly loads the zinc ingot of different grade type and moves to hanging the spindle position with the zinc ingot that corresponds, and control zinc hoist and mount is put and is moved to getting the spindle position, takes out and hoist the zinc ingot on the AGV dolly to the zinc pot in.

2. The multi-target-based integrated ingot feeding system according to claim 1, wherein each lifting assembly comprises two support frames, a cross beam and a lifting driving device, and the two support frames are vertically fixed on the vehicle body; two ends of the cross beam are respectively connected with the upper ends of the two support frames; the lifting driving device is installed on the cross beam, and the driving end of the lifting driving device is connected with the lifting frame.

3. The multi-target-based integrated ingot feeding system of claim 2, wherein the lifting assembly further comprises guide mechanisms symmetrically arranged at two sides of the lifting frame, each guide mechanism comprises a guide sleeve and a guide rod matched with the guide sleeve, the guide sleeves are arranged at the tops of the support frames or the cross beams, the upper ends of the guide rods are connected with the lifting frame, and the guide rods can slide up and down in the guide sleeves along with the lifting frame.

4. The integrated multi-target-based ingot feeding system according to claim 1, wherein a gravity sensing device is installed at the bottom of the zinc ingot supporting plate and used for detecting whether zinc ingots are placed on an AGV trolley or not.

5. The multi-target-based integrated ingot feeding system of claim 2, wherein the zinc ingot supporting plate is provided with a zinc ingot fixing structure, which comprises two limiting strips arranged in parallel and a telescopic zinc ingot fixing rod, wherein the limiting strips are matched with limiting grooves at the bottoms of the zinc ingots, and the zinc ingot fixing rod is matched with a fixing hole formed in the zinc ingot.

6. The multi-target-based integrated ingot adding system according to claim 1, wherein the vehicle body head is further provided with a display screen.

7. The multi-target-based integrated ingot adding system according to claim 1, wherein the zinc adding hoisting device comprises a movable guide rail and an electric hoist crane which moves along the length direction of the movable guide rail, and the tail end of the movable guide rail is provided with a limit switch; the electric hoist is provided with a zinc ingot hook; the motor of the electric hoist crane is provided with an encoder, an output signal of the encoder is communicated with the PLC through a network, and the PLC drives the motor of the electric hoist crane to act.

8. The multi-target-based integrated ingot adding system of claim 7, wherein the zinc ingot hook is L-shaped, the upper end of the vertical section of the zinc ingot hook is connected with the driving end of the electric hoist crane, the horizontal section of the zinc ingot hook is matched with a hoisting hole formed in a zinc ingot, and the horizontal section of the zinc ingot hook can be inserted into the hoisting hole of the zinc ingot; the electric hoist crane is characterized in that an encoder is installed on a motor of the electric hoist crane, an output signal of the encoder can be communicated with the PLC through a network, and an output module of the PLC drives the motor of the electric hoist crane to act.

9. The multi-target-based integrated ingot feeding system of claim 1, wherein the monitoring and control device further comprises a liquid level sensor, a zinc liquid component online detection device, a zinc liquid temperature sensor and a plate temperature sensor, wherein the liquid level sensor is installed above the zinc pot; the detection head of the zinc liquid component online detection equipment and the zinc liquid temperature sensor are arranged in the zinc pot; the liquid level sensor, the zinc liquid component online detection device, the zinc liquid temperature sensor and the plate temperature sensor are respectively connected with the PLC, wherein the liquid level sensor is used for detecting the liquid level of zinc liquid in the zinc pot and sending the liquid level information to the PLC; the zinc liquid component online detection equipment is used for measuring the zinc liquid components in the zinc pot and sending the zinc liquid component information to the PLC; the zinc liquid temperature sensor is used for detecting the temperature of the zinc liquid and sending the temperature information to the PLC; the plate temperature sensor is used for detecting the temperature of the strip steel and sending the temperature information to the PLC.