Thickness adjustable metal strip spraying machine

Abstract

The present invention proposes a thickness-adjustable metal strip spraying machine, which includes a water-cooling chamber, a transmission shaft located at the axis of the water-cooling chamber and driving the water-cooling chamber to rotate, a nozzle whose end is located at the tangent position of the outer surface of the water-cooling chamber, a pressing part and an idler wheel that are against the strip on the surface of the water-cooling chamber, a scraping and separating part located between the water-cooling chamber and the strip, a hydraulic system connected to the scraping and separating part, and an automatic winding device for collecting the strip in a roll, the vertical distance between the end of the nozzle and the center of the circle is the eccentricity, a liquid accumulation pool is provided at the gap between the nozzle and the water-cooling chamber and near the highest point of the water-cooling chamber, and the idler wheel is tangent to the water-cooling chamber with the strip on the surface covered and is against the scraping and separating part. The device has a simple structure, stable and reliable operation, and assembly line production improves the working environment. It can efficiently manufacture thinner metal strips, and is a short-process, low-energy-consumption, and high-quality foil equipment.

Description

Technical Field

[0001] The invention relates to the field of metal material processing, in particular to a metal strip spraying machine with adjustable thickness. Background Art

[0002] Metal sheets and strips can be cut, bent, stamped and welded into various components and products as needed. The rapid development of high-speed continuous sheet and strip rolling mills and wide and thick plate rolling mills has reduced the cost of sheets and strips, improved their quality, and made their applications increasingly widespread. The proportion of sheet and strip steel output in the total steel output of industrially developed countries has increased year by year.

[0003] In the prior art, a thin plate for rolling high-performance foil is obtained by sequentially performing casting, hot rolling, intermediate rolling, cold rolling, finishing rolling, slitting, edge trimming and slitting, heat treatment, pickling, and surface polishing. The preparation method has high energy consumption and low work efficiency in preparing foil.

[0004] In addition to the above-mentioned defects, the existing equipment for processing strips cannot adjust the thickness of the strip products and has poor flexibility; when the thickness of the strip needs to be changed, different equipment is required, and the processing cost is high; after the strip is processed, it cannot be automatically collected and processed, and the processed strip needs to be manually collected into rolls, which increases the labor intensity of the operators; the strip is easily oxidized after open processing. Summary of the invention

[0005] Purpose of the invention: In order to solve the shortcomings of the prior art, the present invention provides a thickness-adjustable metal strip spraying machine. The device has a simple structure, stable and reliable operation, and assembly line production improves the working environment. It can efficiently manufacture thinner metal strips. It is a short-process, low-energy-consumption equipment for making high-quality foil.

[0006] Technical solution: In order to achieve the above purpose, the present invention discloses a thickness-adjustable metal strip spraying machine, which comprises: a water-cooling chamber, a transmission shaft located at the axial center of the water-cooling chamber and driving the water-cooling chamber to rotate, a nozzle whose end is located at the tangent position of the outer surface of the water-cooling chamber, a pressing part and an idler wheel that are against the strip on the surface of the water-cooling chamber, a scraping and separating part located between the water-cooling chamber and the strip, a hydraulic system connected to the scraping and separating part, and an automatic winding device for collecting the strip in a roll, the vertical distance between the end of the nozzle and the center of the circle is the eccentricity, a liquid accumulation pool is provided at the gap between the nozzle and the water-cooling chamber and near the highest point of the water-cooling chamber, the idler wheel is tangent to the water-cooling chamber covered with the strip on the surface and is against the scraping and separating part, the transmission shaft is connected to the motor through a reducer, the motor outputs power, the transmission shaft transmits the power through the reducer, and the water-cooling chamber is driven to rotate by the transmission shaft.

[0007] As a further preferred embodiment of the present invention, the larger the eccentricity, the larger the vertical distance between the nozzle end and the surface of the water-cooling chamber.

[0008] As a further preferred embodiment of the present invention, a water circulation cooling system is provided in the water-cooling chamber, and the water circulation cooling system includes a water inlet and a water outlet located at both ends of the cooling water pipe, and a temperature sensor installed in the cooling water pipe. When the temperature sensor senses that the temperature in the cooling water pipe is too high, the temperature sensor sends a signal of excessive temperature to the PLC circuit, and the PLC circuit simultaneously controls the water inlet and outlet switches of the cooling water pipe, and the cooling water enters the cooling water pipe from the water inlet, and the excessive cooling water is discharged from the water outlet.

[0009] As a further preferred embodiment of the present invention, the temperature in the cooling water pipe is 17°C to 75°C.

[0010] As a further preferred embodiment of the present invention, the linear speed of the water-cooling chamber is 8m / s to 35m / s. When the water-cooling chamber rotates continuously, the strip covering the surface of the water-cooling chamber is driven to cool down. Then, the position of the strip and the surface of the water-cooling chamber is pressed and adjusted by the pressing part, and the bottom of the strip is scraped away by the scraping and separating part. At the same time, the strip is led out by the idler wheel, and finally the strip is collected into a roll by the automatic winding device.

[0011] As a further preferred embodiment of the present invention, the temperature of the molten metal in the nozzle with a switch at the end is 1150°C ~ 1560°C. When the water-cooling chamber rotates, the molten metal sprayed from the nozzle forms a liquid pool on the surface of the water-cooling chamber. At this time, the continuous rotation of the water-cooling chamber drives the molten metal in the liquid pool to rotate on the surface of the water-cooling chamber. The temperature of the surface of the water-cooling chamber cools the molten metal to obtain a metal strip. The pressure of the protective gas above the nozzle controls the flow rate of the molten metal sprayed from the nozzle, and the flow rate is the strip volume × strip density × linear speed of the water-cooling chamber.

[0012] When the scraping and separating part fails to scrape the strip off the surface of the water-cooling chamber, causing the scraping and separating part and the water-cooling chamber to be stuck, causing the water-cooling chamber to stop operating, or when the water-cooling chamber does not rotate due to other system reasons, the molten metal in the nozzle will continue to spray out the molten metal. When the molten metal exceeds a specified height in the liquid accumulation pool, the sensor on the nozzle receives a signal and sends an alarm signal to the PLC circuit, which controls the switch on the nozzle to turn off the supply of the molten metal.

[0013] As a further preferred embodiment of the present invention, the water cooling chamber, the nozzle, the scraping and separating part, the hydraulic system and the automatic winding device are connected to the PLC circuit, and the system works automatically through the PLC circuit to realize automated production.

[0014] As a further preferred embodiment of the present invention, the clamping part includes: a driven wheel, a pin shaft, a bracket, a spring and a fixed seat. The pin shaft is passed through the driven wheel, and one end of the bracket is fixed on both sides of the pin shaft, so that the driven wheel can rotate under the action of the pin shaft. The other end of the bracket is fixed to the fixed seat through a spring. When the driven wheel presses the strip, the spring plays a buffering role. The ratio of the width of the driven wheel to the width of the strip is 3:2, which ensures the reliability and stability of the clamping part in pressing and adjusting the strip and the surface position of the water-cooling chamber.

[0015] As a further preferred embodiment of the present invention, the overflow valve provided in the hydraulic system is connected to the alarm. If the scraping and separating part cannot scrape the strip away from the water-cooling chamber for unknown reasons, the scraping and separating part will remain in its original position at the beginning because the water-cooling chamber continues to rotate, but the scraping and separating part will receive a greater pressure than the working state. The force of the rotation of the water-cooling chamber pushes the scraping and separating part to gradually retreat. At this time, the piston rod connected to the scraping and separating part starts to work under the action of the scraping and separating part. The retreat of the piston rod increases the pressure in the hydraulic cylinder, and the overflow valve connected to the hydraulic cylinder performs overflow and pressure stabilization to limit the pressure and protect the hydraulic system. After the overflow valve is opened, the PLC system receives a signal, the alarm is turned on, and the switch on the nozzle is controlled by the PLC circuit to turn off the supply of molten metal. Since the overflow valve for limiting the pressure of the hydraulic system is a prior art, it will not be introduced in detail here.

[0016] As a further preferred embodiment of the present invention, a protective cover is provided on the outer side of the tape spraying machine of the present invention, and an inert gas is provided inside the protective cover to prevent oxidation of the finished foil material, and the inert gas is preferably argon.

[0017] Beneficial effects: Compared with the prior art, the metal strip spraying machine with adjustable thickness provided by the present invention has the following advantages:

[0018] 1. By adding detachable nozzles at different eccentricity positions, metal strips of different thicknesses can be processed;

[0019] 2. The scraping and separating part located on the outer surface of the water-cooling chamber is connected to the hydraulic system to prevent the scraping and separating part from being unable to scrape off the metal strip pressed against the surface of the water-cooling chamber due to its own position being unable to be adjusted, thus causing system failure;

[0020] 3. The scraping and separating part is connected to the overflow valve of the hydraulic system. When the scraping and separating part cannot scrape off the metal strip pressed on the surface of the water-cooling chamber, the overflow valve realizes the overpressure protection of the hydraulic system and realizes the system alarm;

[0021] 4. The automatic winding device automatically collects the strip into a roll after it is shoveled off the water cooling chamber in the shoveling and separation part, which reduces the labor intensity of the operator and improves the working environment of the operator;

[0022] 5. The device controls each component to work automatically through PLC circuit, realizing assembly line production and improving work efficiency;

[0023] 6. A protective cover is added to the outside of the equipment and inert gas is introduced into the protective cover to prevent oxidation of the finished foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 is a top view of the driven wheel;

[0026] Figure 3 This is a full cross-sectional view of the water-cooling chamber. DETAILED DESCRIPTION

[0027] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, the thickness-adjustable metal strip spraying machine described in the present invention includes: a water-cooling chamber 1, a transmission shaft 11, a nozzle 2, a pressing part 3, a scraping and separating part 4, a hydraulic system 5, an idler wheel 6 and an automatic winding device 7.

[0029] A water circulation cooling system is provided in the water cooling chamber 1, and the water circulation cooling system includes a water inlet 12 and a water outlet 13 located at both ends of a cooling water pipe, and a temperature sensor installed in the cooling water pipe;

[0030] A switch 21 and a sensor 22 are provided at the end of the nozzle 2, and the temperature of the molten metal in the nozzle 2 is 1150°C to 1560°C;

[0031] The clamping part 3 includes: a driven wheel 31, a pin shaft 32, a bracket 33, a spring 34 and a fixed seat 35. The pin shaft 32 is passed through the driven wheel 31, one end of the bracket 33 is fixed on both sides of the pin shaft 32, and the other end of the bracket 33 is fixedly connected to the fixed seat 35 through the spring 34. The ratio of the width of the driven wheel 31 to the width of the strip 10 is 3:2.

[0032] The motor transmits power to the transmission shaft 11 through the reducer, and the transmission shaft drives the water-cooling chamber 1 to rotate. An eccentricity a is provided between the end of the nozzle 2 and the center of the transmission shaft 11. A liquid accumulation pool 23 is provided at the gap between the nozzle 2 and the water-cooling chamber 1 and near the highest point of the water-cooling chamber 1. The idler wheel 6 is tangent to the water-cooling chamber 1 with the strip 10 on the surface covered and is against the scraping and separating part 4. The hydraulic system 5 is connected to the scraping and separating part 4. The strip 10 scraped off from the water-cooling chamber 1 is collected into a roll by the automatic winding device 7.

[0033] Example 1

[0034] 1. Determine the height of the liquid pool 23 according to the thickness of the strip 10. The height t of the liquid pool 23 is the same as the thickness of the strip 10. According to the required thickness of the strip, calculate the size of the eccentricity a of the nozzle 2, and finally determine the installation position of the nozzle;

[0035] 2. After starting the PLC circuit, cooling water is introduced into the water-cooling chamber 1. The motor transmits power to the transmission shaft 11 through the reducer, and the transmission shaft 11 drives the water-cooling chamber 1 to rotate. The linear speed of the water-cooling chamber 1 is 8m / s. When the temperature sensor in the water-cooling chamber 1 receives a temperature of 17°C, 1150°C liquid beryllium copper is introduced into the nozzle 2;

[0036] 3. Liquid beryllium copper is sprayed onto the surface of water-cooling chamber 1 through the bottom of nozzle 2. The flow rate of molten metal sprayed out of nozzle 2 is controlled by the pressure of argon gas above nozzle 2. Water-cooling chamber 1 drives liquid beryllium copper to rotate together. A liquid accumulation pool 23 is provided at the gap between nozzle 2 and water-cooling chamber 1 and near the highest point of water-cooling chamber 1. When the height of liquid accumulation pool 23 is greater than a limit value, the sensor on nozzle 2 sends an alarm signal to the PLC circuit, which controls the switch on nozzle 2 to turn off the supply of molten metal.

[0037] 4. The water-cooling chamber 1 continuously rotates to drive the liquid beryllium copper in the effluent pool 23 to rotate on the surface of the water-cooling chamber 1. The temperature of the surface of the water-cooling chamber 1 cools the liquid beryllium copper to obtain the beryllium copper strip 10. The strip 10 passes through the clamping part 3, and the clamping part 3 clamps and adjusts the position of the strip 10 and the surface of the water-cooling chamber 1. The driven wheel 31 is connected to the fixing seat 35 through the spring 34. When the driven wheel 31 is pressed on the strip 10, the spring plays a buffering role. The width of the driven wheel 31 and the width of the strip 10 are in a ratio of 3:2. The bottom of the strip 10 is scraped away by the scraping and separating part 4. At the same time, the strip 10 is led out by the idler wheel 6, and finally the strip 10 is collected in a roll by the automatic winding device 7;

[0038] 5. If the scraping and separating part 4 cannot scrape the strip 10 away from the water-cooling chamber 1 due to unknown reasons, the scraping and separating part 4 will remain in its original position at the beginning because the water-cooling chamber 1 continues to rotate, but the scraping and separating part 4 will be subjected to a greater pressure than in the working state. The force of the rotation of the water-cooling chamber 1 pushes the scraping and separating part 4 to gradually retreat. At this time, the piston rod connected to the scraping and separating part 4 starts to work under the action of the scraping and separating part 4. The retreat of the piston rod increases the pressure in the hydraulic cylinder, and the overflow valve connected to the hydraulic cylinder performs overflow and pressure stabilization to limit the pressure and protect the hydraulic system. After the overflow valve is opened, the PLC system receives a signal, the alarm is turned on, and the switch on the nozzle is controlled by the PLC circuit to turn off the supply of molten metal.

[0039] Example 2

[0040] 1. Determine the height of the liquid pool 23 according to the thickness of the strip 10. The height t of the liquid pool 23 is the same as the thickness of the strip 10. According to the required thickness of the strip, calculate the size of the eccentricity a of the nozzle 2, and finally determine the installation position of the nozzle;

[0041] 2. After starting the PLC circuit, cooling water is introduced into the water-cooling chamber 1, and the motor transmits power to the transmission shaft 11 through the reducer, and the transmission shaft 11 drives the water-cooling chamber 1 to rotate. The linear speed of the water-cooling chamber 1 is 8m / s to 35m / s. When the temperature sensor in the water-cooling chamber 1 receives a temperature of 55°C, the liquid copper-nickel-tin at 1220°C is introduced into the nozzle 2;

[0042] 3. Liquid copper-nickel-tin is sprayed onto the surface of the water-cooling chamber 1 through the bottom of the nozzle 2. The pressure of argon gas above the nozzle 2 controls the flow rate of the molten metal sprayed out of the nozzle 2. The water-cooling chamber 1 drives the liquid copper-nickel-tin to rotate together. A liquid accumulation pool 23 is provided at the gap between the nozzle 2 and the water-cooling chamber 1 and close to the highest point of the water-cooling chamber 1. When the height of the liquid accumulation pool 23 is greater than the limit value, the sensor on the nozzle 2 sends an alarm signal to the PLC circuit, which controls the switch on the nozzle 2 to turn off the supply of the molten metal;

[0043] 4. The water-cooling chamber 1 continuously rotates to drive the liquid copper-nickel-tin in the effluent pool 23 to rotate on the surface of the water-cooling chamber 1. The temperature of the surface of the water-cooling chamber 1 cools the molten metal to obtain the copper-nickel-tin strip 10. The strip 10 passes through the clamping part 3, and the clamping part 3 clamps and adjusts the position of the strip 10 and the surface of the water-cooling chamber 1. The driven wheel 31 is connected to the fixed seat 35 through the spring 34. When the driven wheel 31 is pressed on the strip 10, the spring plays a buffering role. The width of the driven wheel 31 and the width of the strip 10 are in a ratio of 3:2. The bottom of the strip 10 is scraped away by the scraping and separating part 4. At the same time, the strip 10 is led out by the idler wheel 6, and finally the strip 10 is collected in a roll by the automatic winding device 7;

[0044] 5. If the scraping and separating part 4 cannot scrape the strip 10 away from the water-cooling chamber 1 due to unknown reasons, the scraping and separating part 4 will remain in its original position at the beginning because the water-cooling chamber 1 continues to rotate, but the scraping and separating part 4 will be subjected to a greater pressure than in the working state. The force of the rotation of the water-cooling chamber 1 pushes the scraping and separating part 4 to gradually retreat. At this time, the piston rod connected to the scraping and separating part 4 starts to work under the action of the scraping and separating part 4. The retreat of the piston rod increases the pressure in the hydraulic cylinder, and the overflow valve connected to the hydraulic cylinder performs overflow and pressure stabilization to limit the pressure and protect the hydraulic system. After the overflow valve is opened, the PLC system receives a signal, the alarm is turned on, and the switch on the nozzle is controlled by the PLC circuit to turn off the supply of molten metal.

[0045] Example 3

[0046] 1. Determine the height of the liquid pool 23 according to the thickness of the strip 10. The height t of the liquid pool 23 is the same as the thickness of the strip 10. According to the required thickness of the strip, calculate the size of the eccentricity a of the nozzle 2, and finally determine the installation position of the nozzle;

[0047] 2. After starting the PLC circuit, cooling water is introduced into the water-cooling chamber 1, and the motor transmits power to the transmission shaft 11 through the reducer, and the transmission shaft 11 drives the water-cooling chamber 1 to rotate. The linear speed of the water-cooling chamber 1 is 8m / s to 35m / s. When the temperature sensor in the water-cooling chamber 1 receives a temperature of 55°C, liquid pure nickel at 1560°C is introduced into the nozzle 2;

[0048] 3. Liquid pure nickel is sprayed onto the surface of the water-cooling chamber 1 through the bottom of the nozzle 2. The pressure of argon gas above the nozzle 2 controls the flow rate of the molten metal sprayed out of the nozzle 2. The water-cooling chamber 1 drives the liquid beryllium copper to rotate together. A liquid accumulation pool 23 is provided at the gap between the nozzle 2 and the water-cooling chamber 1 and near the highest point of the water-cooling chamber 1. When the height of the liquid accumulation pool 23 is greater than the limit value, the sensor on the nozzle 2 sends an alarm signal to the PLC circuit, which controls the switch on the nozzle 2 to turn off the supply of the molten metal;

[0049] 4. The water-cooling chamber 1 continuously rotates to drive the liquid pure nickel in the effluent pool 23 to rotate on the surface of the water-cooling chamber 1. The temperature of the surface of the water-cooling chamber 1 cools the liquid pure nickel to obtain a pure nickel strip 10. The strip 10 passes through the pressing part 3, and the pressing part 3 adjusts the position of the strip 10 and the surface of the water-cooling chamber 1. The driven wheel 31 is connected to the fixed seat 35 through the spring 34. When the driven wheel 31 is pressed on the strip 10, the spring plays a buffering role. The width of the driven wheel 31 and the width of the strip 10 are in a ratio of 3:2. The bottom of the strip 10 is shoveled away by the shoveling and separating part 4. At the same time, the strip 10 is led out by the idler wheel 6, and finally the strip 10 is collected in a roll by the automatic winding device 7;

[0050] 5. If the scraping and separating part 4 cannot scrape the strip 10 away from the water-cooling chamber 1 due to unknown reasons, the scraping and separating part 4 will remain in its original position at the beginning because the water-cooling chamber 1 continues to rotate, but the scraping and separating part 4 will be subjected to a greater pressure than in the working state. The force of the rotation of the water-cooling chamber 1 pushes the scraping and separating part 4 to gradually retreat. At this time, the piston rod connected to the scraping and separating part 4 starts to work under the action of the scraping and separating part 4. The retreat of the piston rod increases the pressure in the hydraulic cylinder, and the overflow valve connected to the hydraulic cylinder performs overflow and pressure stabilization to limit the pressure and protect the hydraulic system. After the overflow valve is opened, the PLC system receives a signal, the alarm is turned on, and the switch on the nozzle is controlled by the PLC circuit to turn off the supply of molten metal.

[0051] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable technicians familiar with the technical field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal strip spraying machine with adjustable thickness, characterized in that: It includes: A water-cooling chamber (1), a transmission shaft (11) located at the axis of the water-cooling chamber (1) and driving the water-cooling chamber (1) to rotate, a nozzle (2) whose end is located at a tangent position of the outer surface of the water-cooling chamber (1), a pressing portion (3) and an idler wheel (6) abutting against the strip (10) on the surface of the water-cooling chamber (1), a scraping and separating portion (4) located between the water-cooling chamber (1) and the strip (10), a hydraulic system (5) connected to the scraping and separating portion (4), and an automatic winding device (7) for collecting the strip (10) in a roll, wherein the vertical distance between the end of the nozzle (2) and the center of the circle of the transmission shaft (11) is an eccentric distance (a), a liquid accumulation pool (23) is provided at the gap between the nozzle (2) and the water-cooling chamber (1) and close to the highest point of the water-cooling chamber (1), and the idler wheel (6) is tangent to the water-cooling chamber (1) whose surface is covered with the strip (10) and abuts against the scraping and separating portion (4); The larger the eccentricity (a), the larger the vertical distance (t) between the end of the nozzle (2) and the surface of the water cooling chamber (1), and the height (t) of the liquid accumulation pool (23) is the same as the thickness of the strip (10); The water cooling chamber (1), the nozzle (2), the scraping and separating part (4), the hydraulic system (5) and the automatic winding device (7) are connected to a PLC circuit, and the overflow valve provided in the hydraulic system (5) is connected to an alarm; By adding a detachable nozzle (2) at different eccentricity (a) positions, strips of different thicknesses can be processed.

2. The thickness-adjustable metal strip spraying machine according to claim 1, characterized in that: A water circulation cooling system is provided in the water cooling chamber (1), and the water circulation cooling system comprises a water inlet (12) and a water outlet (13) located at both ends of a cooling water pipe, and a temperature sensor installed in the cooling water pipe.

3. The thickness-adjustable metal strip spraying machine according to claim 2, characterized in that: The temperature in the cooling water pipe is 17°C to 75°C.

4. The thickness-adjustable metal strip spraying machine according to claim 1, characterized in that: The linear speed of the water cooling chamber (1) is 8 m / s to 35 m / s.

5. The thickness-adjustable metal strip spraying machine according to claim 1, characterized in that: A switch (21) and a sensor (22) are provided at the end of the nozzle (2), and the temperature of the molten metal in the nozzle (2) is 1150° C. to 1560° C.

6. The thickness-adjustable metal strip spraying machine according to claim 1, characterized in that: The clamping portion (3) comprises: a driven wheel (31), a pin shaft (32), a bracket (33), a spring (34) and a fixing seat (35); the pin shaft (32) is passed through the driven wheel (31); one end of the bracket (33) is fixed to two sides of the pin shaft (32); the other end of the bracket (33) is fixedly connected to the fixing seat (35) via a spring (34); the ratio of the width of the driven wheel (31) to the width of the strip (10) is 3:2.

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