Stainless steel plasticity promotion device and method of use thereof

Abstract

The present application belongs to the technical field of stainless steel processing, and in particular to a stainless steel plasticity improving device and a method for using the same. The device is provided with a shell, a rotating shaft I and a rotating shaft II inside the shell, a discharging roller and a feeding roller respectively sleeved on the rotating shaft I and the rotating shaft II, and a stretching part for forming a speed difference to stretch the steel belt. An air supporting part is used to form an air lubricating film between the steel belt and the box and blow the steel belt flat. A blowing part is used to remove impurities on the outer wall of the roller. The inner wall of the discharging roller and the feeding roller is provided with a heating sheet I, and the inner wall of the box is provided with a heating sheet II to heat the inert gas. Through the air supporting part, an air lubricating film is formed between the steel belt and the box and the steel belt is blown flat, which effectively supports the steel belt to avoid its downward bending and prevents longitudinal creases from being generated in the hot softening state. The blowing part can remove dust and impurities on the outer wall of the discharging roller and the feeding roller. The stretching part can form a speed difference to realize uniform stretching of the steel belt and improve the plasticity of the stainless steel.

Description

Technical Field

[0001] This invention relates to the field of stainless steel processing technology, and in particular to a stainless steel plasticity lifting device and its usage method. Background Technology

[0002] Stainless steel is widely used in various fields such as chemical engineering, food processing, machinery manufacturing, and construction due to its excellent corrosion resistance, mechanical properties, and aesthetic appeal. In the production and processing of stainless steel products, improving the plasticity of the steel strip is a key process, directly affecting the forming quality, dimensional accuracy, and service life of subsequent products. Currently, the most common method for improving the plasticity of stainless steel in the industry is through stretching processes. This utilizes the plastic deformation during stretching to improve the internal structure of the material and enhance its plasticity.

[0003] Existing stainless steel stretching equipment has many shortcomings in practical applications:

[0004] 1. During the stretching process, the steel strip needs to be in a certain temperature environment to reduce the stretching resistance and improve the plastic deformation capacity. Existing equipment mostly adopts a single heating method, which has poor heating uniformity and is prone to local overheating or underheating of the steel strip, thereby affecting the stretching effect and even causing uneven material properties.

[0005] 2. When steel strip is stretched in a softened state, the part that is suspended lacks an effective support structure, making it very easy to produce longitudinal creases. This problem is especially prominent during high-speed stretching, which seriously affects the surface quality of the product.

[0006] 3. The existing equipment's stretching mechanism mostly adopts an independent drive method, which makes it difficult to accurately control the speed difference between the discharge roller and the unloading roller, resulting in unstable stretching force and easy problems of overstretching or understretching of the steel strip, affecting the material's plasticity improvement effect;

[0007] 4. During long-term use, dust and impurities easily accumulate on the outer walls of the feeding and discharging rollers. These impurities will be pressed into the surface of the steel strip during the stretching process, forming indentations and reducing the product qualification rate. Summary of the Invention

[0008] The purpose of this invention is to solve the shortcomings of existing steel strip stretching, such as easy creases, easy adhesion of impurities to the roller, and uneven stretching, and to propose a stainless steel plastic lifting device and its usage method.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A stainless steel plastic lifting device, comprising:

[0011] The housing contains a rotating shaft I and a rotating shaft II rotatably connected inside the housing. The outer walls of the rotating shaft I and the rotating shaft II are respectively fixedly sleeved with a discharge roller and a feed roller, which are used to convey steel strips.

[0012] The stretching section, connected to the rotating shaft I and rotating shaft II, is used to drive the discharge roller and the unloading roller to generate a speed difference, so as to stretch the steel strip between them;

[0013] Two boxes are fixed inside the housing and located between the discharge roller and the feed roller. The two boxes are arranged vertically opposite each other to be located above and below the steel strip, respectively. Multiple sets of V-shaped holes are provided on the plate surface of the box facing the steel strip. The multiple sets of V-shaped holes extend obliquely to both sides of the steel strip centerline as the symmetrical axis.

[0014] A gas supply device for introducing gas into the housing;

[0015] When the gas is ejected from the box through the V-shaped hole group, it can form a supporting air film between the steel strip and the box. At the same time, the airflow is guided by the V-shaped hole group and generates a component force that flattens the steel strip to both sides.

[0016] In one possible design, the tensioning part includes gear I, gear II, transmission gear, rotating shaft, worm gear, worm, and rotating rod;

[0017] The rotating rod is rotatably disposed on one side of the housing, and two worm gears are fixedly sleeved on its outer wall;

[0018] The two rotating shafts are rotatably connected to the housing, and one end of each shaft is fixed with a worm gear, and the two worm gears mesh with the two worms respectively;

[0019] The two transmission gears are respectively fixedly sleeved on the outer walls of the two rotating shafts;

[0020] One end of the rotating shaft I and rotating shaft II extends out of the housing and is fixed with gear I and gear II, respectively. Gear I and gear II mesh with the corresponding transmission gears.

[0021] Heating elements I are provided inside the discharge roller and the feed roller.

[0022] In one possible design, the diameter of gear I is smaller than the diameter of gear II, and the diameter of the transmission gear meshing with gear I is larger than the diameter of the transmission gear meshing with gear II, such that when the rotating rod drives the two rotating shafts to rotate at the same speed, the rotational speed of the discharge roller is higher than that of the feeding roller.

[0023] In one possible design, the gas supply device includes a fan and a U-shaped pipe, wherein the inlet end of the fan is connected to an inert gas source, and the outlet end is connected to the two housings through the U-shaped pipe.

[0024] Heating element II is provided on the inner wall of the box body facing away from the steel strip.

[0025] In one possible design, two sets of blowing sections are also included, which respectively remove dust and impurities from the material roller and the feed roller. The blowing section includes a fixed shaft and a bending plate.

[0026] The fixed shaft is fixed inside the housing and located on one side of the box;

[0027] The bending plate is swayably connected to the fixed shaft via a connecting lug. The bending plate is V-shaped, with its open side facing the gap between the box and the steel strip. An air outlet is provided on the side away from the box, and the air outlet faces the discharge roller.

[0028] In one possible design, the purging unit further includes a rotating ring, an arc-shaped plate, a sliding rod, a spring, a fixing block, and a ball;

[0029] The rotating ring is fixedly sleeved on the outer wall of the rotating shaft I, and the arc-shaped plate is fixed on its outer wall;

[0030] The sliding rod is slidably configured, and one end of it is provided with a roller that matches the contour of the arc-shaped plate;

[0031] The fixing block is fixed to the outer wall of the sliding rod, and the spring is sleeved on the sliding rod, with its two ends acting on the fixing block and the fixing seat on the housing, respectively.

[0032] The sphere is fixed to the fixing block by a vertical rod and abuts against the bottom of the bending plate;

[0033] When the rotating shaft I rotates, the sliding rod is driven to reciprocate through the cooperation of the arc plate, roller and spring, and then the bending plate is driven to swing back and forth around the fixed axis through the ball.

[0034] In one possible design, both ends of the housing are provided with connecting seats, and a take-up roller and an unwind roller are rotatably connected to the connecting seats. The two sides of the housing are provided with a discharge port and a feed port corresponding to the take-up roller and the unwind roller.

[0035] The housing also contains two guide rollers, which are located below the discharge roller and the feed roller, respectively.

[0036] In one possible design, a protective box is fixed to one side of the housing to cover the worm, gear I, transmission gear, worm wheel and gear II.

[0037] In one possible design, the housing is provided with an exhaust pipe.

[0038] This application discloses a method of using a stainless steel plastic lifting device, comprising the following steps:

[0039] S1. One end of the steel strip passes sequentially through the feed inlet, guide roller, feed roller, discharge roller, and discharge outlet, and is wound onto the take-up roller. The take-up roller winds up the steel strip. Since the heating element I heats the feed roller and discharge roller, the steel strip is softened as it passes through them, making it easier to stretch and improve the material's plasticity later. Then, the drive motor drives the rotating rod to rotate. The rotating rod drives two worm gears to rotate through two worms. The two worm gears drive the corresponding transmission gears to rotate, and the two transmission gears drive gear I and gear II to rotate. Since the diameter of gear I is smaller than that of gear II, when the two transmission gears rotate at the same speed, the speed of gear I is greater than that of gear II. Therefore, a speed difference is formed between the discharge roller and the feed roller, which physically stretches the steel strip between the discharge roller and the feed roller, thereby improving the material's plasticity at the microscopic level.

[0040] S2. The steel strip located between the discharge roller and the unloading roller is suspended in the air and is prone to bending due to gravity. At this time, it needs to be supported. The blower is connected to the inert gas source through the air inlet pipe and injects the inert gas into the upper and lower boxes through the U-shaped pipe. The heating element II in the box can heat the inert gas. The high-temperature inert gas (such as argon) is sprayed out through the air outlet and forms a high-pressure gas film on the upper and lower surfaces of the steel strip. The gas pressure difference is used to suspend the strip in the middle of the cavity for support.

[0041] S3. The multiple V-shaped hole groups on the box body are composed of multiple air outlets. The multiple V-shaped hole groups on the box body extend obliquely outward from the two sides of the steel strip with the center line of the steel strip as the axis of symmetry. When the high-pressure gas is ejected from the box body through the air outlets, it not only forms a micron-level air lubricating film between the steel strip and the plate surface to achieve suspension, but also, due to the physical guiding effect of the V-shaped hole groups, the airflow will generate a lateral component force on the steel strip that diverges from the center to both sides. While supporting the steel strip by air jet, it forces the steel strip to "flatten" to both sides, effectively preventing the stainless steel strip from producing longitudinal creases in the heat softening state.

[0042] S4. After the high-temperature gas is blown out of the air outlet of the lower box, the high-temperature gas flows to both sides along the gap between the steel strip and the box. Since the bending plate forms a V-shape after bending, and the opening side of the two bending plates faces the gap between the box and the steel strip, the high-temperature gas is collected in the bending plate and blown to the outer wall of the corresponding discharge roller and feed roller through the air outlet. This can remove the dust and impurities attached to the outer wall and prevent dust and impurities from forming indentations on the steel strip.

[0043] S5. During the rotation of shaft I and shaft II, the corresponding rotating ring can be driven to rotate. The rotating ring pushes the sliding rod towards the box through the arc plate. The cooperation between the arc plate and the spring can drive the fixed block and the sliding rod to move back and forth. The fixed block abuts against the bottom of the bending plate through the ball. During the reciprocating movement of the fixed block, the bending plate can be driven to swing back and forth around the fixed shaft as the center. It can reciprocate to blow the outer wall of the discharge roller and the feeding roller. In addition, the exhaust pipe can discharge the high temperature inert gas in the shell for collection and reuse.

[0044] Beneficial effects: In this invention, the air support part sprays heated inert gas onto the steel strip, forming an air lubrication film between the steel strip and the housing, thereby achieving suspension support for the steel strip and preventing it from bending under gravity or causing frictional damage from contact with other components. At the same time, the guiding effect of the V-shaped hole group causes the airflow to generate a lateral force from the center to both sides, forcibly "flattening" the steel strip, effectively preventing longitudinal creases from forming on the steel strip in a heat-softened state, ensuring the surface quality of the steel strip, and improving the product qualification rate.

[0045] In this invention, the stretching section achieves synchronous rotation of two rotating shafts through worm gear and worm wheel transmission. Then, through the cooperation of gears I and II of different diameters with corresponding transmission gears, the speed difference between the discharge roller and the unloading roller is precisely controlled, thereby achieving precise control of the stretching force, avoiding the problem of excessive or insufficient stretching of the steel strip, ensuring that the plasticity of the material can be stably improved, and improving the consistency of product performance.

[0046] In this invention, the purging section uses inert gas ejected from the box as the purging medium, eliminating the need for an additional gas source and reducing equipment costs. Simultaneously, through the cooperation of components such as the rotating ring, arc plate, and spring, the bending plate is driven to swing back and forth, causing the air outlet to repeatedly purify the outer walls of the discharge roller and the unloading roller. The purging range is wide and the effect is good, which can thoroughly remove dust and impurities from the roller surface, preventing impurities from forming indentations on the steel strip surface during the stretching process, and further ensuring the surface quality of the steel strip.

[0047] In this invention, an air support section forms an air lubricating film between the steel strip and the housing and flattens the steel strip. This effectively supports the steel strip, preventing it from bending downwards under gravity and preventing longitudinal creases from forming in the heat-softened state. The blowing section can remove dust and impurities from the outer walls of the discharge roller and the unloading roller, preventing indentations from forming on the surface of the steel strip during stretching. The stretching section can create a speed difference to achieve uniform stretching of the steel strip. The heating plates in the discharge roller, the unloading roller, and the housing can precisely control the temperature of the steel strip during stretching, improve the plasticity of stainless steel, and increase the finished product qualification rate. Attached Figure Description

[0048] Figure 1 A three-dimensional structural schematic diagram of a stainless steel plastic lifting device provided by the present invention;

[0049] Figure 2 This is a three-dimensional cross-sectional structural diagram of a stainless steel plastic lifting device provided by the present invention.

[0050] Figure 3 This is a cross-sectional structural diagram of a stainless steel plastic lifting equipment housing provided by the present invention.

[0051] Figure 4 A three-dimensional exploded structural diagram of the rotating rod, protective box, and bending plate of a stainless steel plastic lifting device provided by the present invention;

[0052] Figure 5 This is a three-dimensional exploded structural diagram of the transmission gear, worm gear, and gear I of a stainless steel plastic lifting device provided by the present invention;

[0053] Figure 6 This is a three-dimensional exploded structural diagram of the U-shaped tube and box body of a stainless steel plastic lifting device provided by the present invention.

[0054] Figure 7 This is a schematic diagram of the V-shaped hole group of a stainless steel plastic lifting device provided by the present invention.

[0055] Figure 8 This is a three-dimensional exploded structural diagram of the bending plate, fixed shaft, and sliding rod of a stainless steel plastic lifting device provided by the present invention;

[0056] Figure 9 This is a three-dimensional structural diagram of the fixed block, sliding rod, and ball of a stainless steel plastic lifting device provided by the present invention.

[0057] In the diagram: 1. Housing; 2. Connecting seat; 3. Take-up roller; 4. Unwind roller; 5. Discharge port; 6. Feed port; 7. Steel strip; 8. Shaft I; 9. Discharge roller; 10. Shaft II; 11. Unwind roller; 12. Heating element I; 13. Gear I; 14. Gear II; 15. Rotating shaft; 16. Transmission gear; 17. Worm gear; 18. Rotating rod; 19. Worm; 20. Drive motor; 21. Protective box; 2. Housing; 23. V-shaped hole group; 24. Air outlet; 25. Heating element II; 26. U-shaped tube; 27. Fan; 28. Fixed shaft; 29. ​​Connecting lug; 30. Bending plate; 31. Air outlet; 32. Fixed seat; 33. Sliding rod; 34. Fixed block; 35. Vertical rod; 36. Ball; 37. Spring; 38. Roller; 39. Rotating ring; 40. Arc plate; 41. Exhaust pipe; 42. Guide roller. Detailed Implementation

[0058] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0059] In one embodiment: Refer to Figures 1-9 A stainless steel plastic lifting device, relating to the field of stainless steel processing technology, is mainly composed of a shell 1, a stretching section, an air support section, and a blowing section. These parts work together to achieve efficient plastic lifting of a stainless steel strip 7. The shell 1 forms the main frame of the entire device, with two connecting seats 2 fixed at both ends. A winding roller 3 and an unwinding roller 4 are rotatably connected between the two connecting seats 2 on the same side. The shell 1 has a discharge port 5 and a feed port 6 on both sides, respectively, which cooperate with the winding roller 3 and the unwinding roller 4. One end of the stainless steel strip 7 passes through the discharge port 5 and the feed port 6, enabling the feeding and discharging of the stainless steel strip 7. Two guide rollers 42 are also rotatably connected inside the shell 1. These guide rollers 42 are located below the discharge roller 9 and the unwinding roller 11, respectively, and are used to guide the stainless steel strip 7, ensuring that the stainless steel strip 7 is stably conveyed within the device along a predetermined path.

[0060] Furthermore, refer to Figures 2-4 The stretching section is the core part that realizes the stretching function of stainless steel strip 7. Rotary shaft I 8 and rotating shaft II 10 are rotatably connected inside the housing 1. The outer walls of rotating shaft I 8 and rotating shaft II 10 are respectively fixedly sleeved with discharge roller 9 and feed roller 11. Discharge roller 9 and feed roller 11 are used to convey stainless steel strip 7.

[0061] Furthermore, refer to Figure 1 , Figure 4 and Figure 5 To achieve the stretching function, the stretching part also includes a rotating rod 18 rotatably mounted on one side of the housing 1 via a base. Two worm gears 19 are fixedly sleeved on the outer wall of the rotating rod 18. Two rotating shafts 15 are rotatably connected to one side of the housing 1. A worm wheel 17 is fixed to one end of each of the two rotating shafts 15, and the two worm wheels 17 mesh with the two worm gears 19 respectively. When the rotating rod 18 rotates, the meshing transmission between the worm gears 19 and the worm wheels 17 synchronously drives the two rotating shafts 15 to rotate at the same speed. A transmission gear 16 is fixedly sleeved on the outer wall of each of the two rotating shafts 15. One end of shaft I8 and shaft II10 both extend rotatably to one side of housing 1 and are fixedly connected to gear I13 and gear II14 respectively. Gear I13 and gear II14 mesh with the corresponding transmission gear 16. The rotation of shaft I5 can drive shaft I8 and shaft II10 to rotate, thereby driving the discharge roller 9 and the feed roller 11 to rotate. A drive motor 20 is fixedly installed on one side of housing 1 via a frame. The output shaft of drive motor 20 is fixedly connected to rotating rod 18 via a coupling to provide driving force for the rotation of rotating rod 18.

[0062] Furthermore, refer to Figure 3 Multiple heating elements I12 are fixed on the inner walls of the discharge roller 9 and the feeding roller 11. The discharge roller 9 and the feeding roller 11 are heated by the heating elements I12, and the heat is transferred to the stainless steel strip 7 through heat conduction, so that the stainless steel strip 7 reaches the appropriate plastic deformation temperature.

[0063] Furthermore, refer to Figure 4 The diameter of gear I13 is smaller than that of gear II14, and the diameter of transmission gear 16 that meshes with gear I13 is larger than that of transmission gear 16 that meshes with gear II14. When the two rotating shafts 15 rotate at the same speed, the different gear diameters cause gear I13 and gear II14 to rotate at different speeds, which in turn creates a speed difference between the discharge roller 9 and the unloading roller 11. This speed difference can be used to stretch the conveyed stainless steel strip 7.

[0064] Furthermore, refer to Figure 2 and Figure 3 The air support is used to support the stainless steel strip 7 suspended between the discharge roller 9 and the feed roller 11. Two boxes 22 are fixed inside the housing 1, arranged vertically, between the discharge roller 9 and the feed roller 11, and above and below the stainless steel strip 7, respectively.

[0065] Furthermore, refer to Figure 1 and Figure 6 The air support unit includes a fan 27 fixed to the side of the housing 1 away from the rotating rod 18 via a frame. The air inlet of the fan 27 is connected to an external inert gas source via a pipe, and the air outlet is fixedly connected to a U-shaped pipe 26 via a pipe. The two ends of the U-shaped pipe 26 are fixedly connected to two housings 22 respectively. The fan 27 injects external inert gas into the housing 22 through the U-shaped pipe 26. The housing 22 is provided with multiple air outlets 24 for discharging gas. When high-pressure gas is ejected from the housing 22 through the air outlets 24, a micron-level air lubrication film is formed between the stainless steel strip 7 and the plate surface, achieving the suspension support of the stainless steel strip 7.

[0066] Furthermore, refer to Figure 3 Multiple heating elements II 25 are fixed on the inner wall of the two boxes 22 away from the stainless steel strip 7. These elements are used to heat the inert gas entering the box 22, which facilitates the heating of the stainless steel strip 7 later. This ensures that the stainless steel strip 7 is in a suitable temperature state when the discharge roller 9 and the feeding roller 11 stretch it.

[0067] Furthermore, refer to Figure 3 The blowing section is provided in two sets, which are used to remove dust and impurities adhering to the outer wall of the discharge roller 9 and the feeding roller 11, respectively, so as to avoid forming indentations on the surface of the stainless steel strip 7 when stretching it.

[0068] Furthermore, refer to Figure 2 , Figure 4 and Figure 8 The purging unit includes a fixed shaft 28 fixed inside the housing 1. The fixed shaft 28 is located on one side of the housing 22 and below the stainless steel strip 7. Multiple connecting ears 29 are rotatably sleeved on the outer wall of the fixed shaft 28. The bottom of the multiple connecting ears 29 is fixed with the same bending plate 30. The side of the bending plate 30 away from the housing 22 is provided with an air outlet 31, and the air outlet 31 faces the discharge roller 9. It is used to blow inert gas through the air outlet 31 onto the discharge roller 9 to remove dust and impurities from its outer wall. The bending plate 30 is V-shaped, and the open side of the bending plate 30 faces the gap between the housing 22 and the stainless steel strip 7. It is used to discharge the inert gas sprayed from the housing 22 into the bending plate 30 and spray it out through the air outlet 31.

[0069] Furthermore, refer to Figure 4 , Figure 8 and Figure 9 The purging section also includes two rotating rings 39 fixed to the outer wall of the rotating shaft I8. The two rotating rings 39 are located at both ends of the discharge roller 9. Multiple arc-shaped plates 40 are fixed to the outer walls of both rotating rings 39. Two fixed seats 32 are fixed to the inner walls of the two opposite sides of the housing 1. A sliding rod 33 slides through the two fixed seats 32 on the same side. A fixing block 34 located between the two fixed seats 32 is fixedly sleeved on the outer wall of the sliding rod 33. A tension spring is sleeved on the outer wall of the sliding rod 33, with an elastic coefficient ranging from 50 N / m. The tension spring has a capacity of 150 N / m. Both ends of the tension spring are fixedly connected to the fixed block 34 and one side of one of the fixed seats 32 via spring seats 37. One end of the sliding rod 33 has a rotating roller 38, which cooperates with the rotating ring 39 and the arc plate 40. When the rotating ring 39 and the arc plate 40 rotate, the tension spring can drive the sliding rod 33 to move back and forth in a straight line. The top of the fixed block 34 is fixed with a vertical rod 35, and the top of the vertical rod 35 is fixed with a ball 36. The top of the ball 36 abuts against the bottom of the bending plate 30, which is used to drive the bending plate 30 to swing when the ball 36 moves back and forth, thereby blowing the outer wall of the discharge roller 9 through the air outlet 31.

[0070] Specifically, during the rotation of rotating shaft I8 and rotating shaft II10, the corresponding rotating ring 39 can be driven to rotate. The rotating ring 39 pushes the sliding rod 33 towards the box 22 through the arc plate 40. The cooperation between the arc plate 40 and the tension spring can drive the fixed block 34 and the sliding rod 33 to move back and forth. The fixed block 34 abuts against the bottom of the bending plate 30 through the ball 36. During the reciprocating movement of the fixed block 34, the bending plate 30 can be driven to swing back and forth around the fixed shaft 28 as the center, which can reciprocate to blow the outer wall of the discharge roller 9 and the feeding roller 11.

[0071] Furthermore, refer to Figure 1, Figure 2 and Figure 4 An exhaust pipe 41 is fixedly connected to one side of the housing 1 to recover the inert gas inside the housing 1, thereby realizing the recycling of the gas and reducing production costs. A protective box 21 is fixed to one side of the housing 1 to protect the worm gear 19, gear I 13, transmission gear 16, worm wheel 17 and gear II 14, preventing external factors from damaging these transmission components and ensuring the stable operation of the equipment.

[0072] In another embodiment: Refer to Figure 6 and Figure 7 The housing 22 has multiple sets of V-shaped holes 23 on the side near the stainless steel strip 7. These V-shaped holes 23 extend obliquely outwards from the centerline of the stainless steel strip 7, with each set consisting of multiple air outlets 24. When high-pressure gas is ejected from the housing 22 through the air outlets 24, a micron-level air lubrication film is formed between the stainless steel strip 7 and the plate surface, achieving suspension support for the stainless steel strip 7. Simultaneously, due to the physical guiding effect of the V-shaped holes 23, the airflow generates a lateral force on the stainless steel strip 7, radiating from the center to both sides. This physical structure, while supporting the stainless steel strip 7, forces it to "flatten" to both sides, effectively preventing longitudinal creases from forming on the stainless steel strip 7 in a heat-softened state.

[0073] A method of using a stainless steel plastic lifting device includes the following steps:

[0074] S1. One end of the steel strip 7 passes sequentially through the feed inlet 6, guide roller 42, feed roller 11, discharge roller 9, and discharge outlet 5 and is wound onto the take-up roller 3. The take-up roller 3 winds up the steel strip 7. Because the heating element I 12 heats the feed roller 11 and discharge roller 9, the steel strip 7 is heated and softened as it passes through them, making it easier to stretch and improve the plasticity of the material later. Then, the drive motor 20 drives the rotating rod 18 to rotate, and the rotating rod 18 is driven by two worm gears 19. The two worm gears 17 rotate, which drives the corresponding transmission gears 16 to rotate. The two transmission gears 16 drive gear I 13 and gear II 14 to rotate. Since the diameter of gear I 13 is smaller than the diameter of gear II 14, when the two transmission gears 16 rotate at the same speed, the speed of gear I 13 is greater than the speed of gear II 14. Therefore, a speed difference is formed between the discharge roller 9 and the feeding roller 11, which physically stretches the steel strip 7 between the discharge roller 9 and the feeding roller 11, thereby improving the plasticity of the material at the microscopic level.

[0075] S2. The steel strip 7 located between the discharge roller 9 and the feed roller 11 is in a suspended state and is prone to bending due to gravity. At this time, it needs to be supported. The blower 27 is connected to the inert gas source through the air inlet pipe and injects the inert gas into the upper and lower boxes 22 through the U-shaped pipe 26. The heating element II 25 in the box 22 can heat the inert gas. The high-temperature inert gas, such as argon, is sprayed out through the air outlet 24 and forms a high-pressure gas film on the upper and lower surfaces of the steel strip 7. The gas pressure difference is used to suspend the strip in the middle of the cavity for support.

[0076] S3. The multiple V-shaped hole groups 23 on the housing 22 are all composed of multiple air outlets 24. The multiple V-shaped hole groups 23 extend obliquely outward from the two sides of the steel strip 7 with the center line of the steel strip 7 as the axis of symmetry. When the high-pressure gas is ejected from the housing 22 through the air outlets 24, not only is a micron-level air lubricating film formed between the steel strip 7 and the plate surface to achieve suspension, but also, due to the physical guiding effect of the V-shaped hole groups 23, the airflow will generate a lateral component force on the steel strip 7 that radiates from the center to both sides. This physical structure supports the steel strip 7 while forcibly "flattening" the steel strip 7 to both sides, effectively preventing the stainless steel strip 7 from generating longitudinal creases in the heat-softened state.

[0077] S4. After the high-temperature gas is blown out of the air outlet 24, the high-temperature gas flows to both sides along the gap between the steel strip 7 and the box 22. Since the bending plate 30 is bent into a V shape and the opening side of the two bending plates 30 faces the gap between the box 22 and the steel strip 7, the high-temperature gas is collected in the bending plate 30 and blown to the outer wall of the corresponding discharge roller 9 and discharge roller 11 through the air outlet 31. This can remove the dust and impurities attached to the outer wall and prevent the dust and impurities from forming indentations on the steel strip 7.

[0078] S5. During the rotation of rotating shaft I8 and rotating shaft II10, the corresponding rotating ring 39 can be driven to rotate. The rotating ring 39 pushes the sliding rod 33 towards the box 22 through the arc plate 40. The cooperation between the arc plate 40 and the spring 37 can drive the fixed block 34 and the sliding rod 33 to move back and forth. The fixed block 34 abuts against the bottom of the bending plate 30 through the ball 36. During the reciprocating movement of the fixed block 34, the bending plate 30 can be driven to swing back and forth around the fixed shaft 28 as the center, which can reciprocate to blow the outer wall of the discharge roller 9 and the feeding roller 11. In addition, the exhaust pipe 41 can discharge the high temperature inert gas in the shell 1 for collection and reuse.

[0079] However, as is well known to those skilled in the art, the working principles and wiring methods of the fan 27, drive motor 20, heating element I 12 and heating element II 25 are commonplace and belong to conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0080] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0081] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A stainless steel plastic lifting device, characterized in that, include: The housing (1) has a rotating shaft I (8) and a rotating shaft II (10) rotatably connected inside it. The outer walls of the rotating shaft I (8) and the rotating shaft II (10) are respectively fixedly sleeved with a discharge roller (9) and a feed roller (11). The discharge roller (9) and the feed roller (11) are used to convey the steel strip (7). The stretching section is connected to the rotating shaft I (8) and rotating shaft II (10) and is used to drive the discharge roller (9) and the unloading roller (11) to generate a speed difference so as to stretch the steel strip (7) between them; Two boxes (22) are fixed inside the housing (1) and located between the discharge roller (9) and the feed roller (11). The two boxes (22) are arranged opposite each other, located above and below the steel strip (7). Multiple sets of V-shaped holes (23) are provided on the plate surface of the box (22) facing the steel strip (7). The multiple sets of V-shaped holes (23) extend obliquely on both sides of the steel strip (7) with the center line of the steel strip (7) as the axis of symmetry. A gas supply device for introducing gas into the housing (22); When the gas is ejected from the box (22) through the V-shaped hole group (23), it can form a supporting air film between the steel strip (7) and the box (22). At the same time, the airflow is guided by the V-shaped hole group (23) and generates a component force that flattens the steel strip (7) to both sides.

2. The stainless steel plastic lifting equipment according to claim 1, characterized in that, The stretching part includes gear I (13), gear II (14), transmission gear (16), rotating shaft (15), worm gear (17), worm (19) and rotating rod (18). The rotating rod (18) is rotatably disposed on one side of the housing (1), and two worm gears (19) are fixedly sleeved on its outer wall. The two rotating shafts (15) are rotatably connected to the housing (1), and one end of each shaft is fixed with a worm gear (17). The two worm gears (17) mesh with the two worms (19) respectively. The two transmission gears (16) are respectively fixedly sleeved on the outer walls of the two rotating shafts (15); One end of the rotating shaft I (8) and the rotating shaft II (10) extends to the outside of the housing (1) and is fixed with the gear I (13) and the gear II (14), respectively. The gear I (13) and the gear II (14) mesh with the corresponding transmission gear (16); Heating elements I (12) are provided inside the discharge roller (9) and the feed roller (11).

3. The stainless steel plastic lifting device according to claim 2, characterized in that, The diameter of gear I (13) is smaller than the diameter of gear II (14), and the diameter of the transmission gear (16) meshing with gear I (13) is larger than the diameter of the transmission gear (16) meshing with gear II (14), so that when the rotating rod (18) drives the two rotating shafts (15) to rotate at the same speed, the rotation speed of the discharge roller (9) is higher than that of the feeding roller (11).

4. The stainless steel plastic lifting device according to claim 3, characterized in that, The gas supply device includes a fan (27) and a U-shaped pipe (26). The inlet end of the fan (27) is used to connect to an inert gas source, and the outlet end is connected to the two boxes (22) through the U-shaped pipe (26). The inner wall of the box (22) facing away from the steel strip (7) is provided with heating element II (25).

5. The stainless steel plastic lifting device according to claim 4, characterized in that, It also includes two sets of blowing sections, which respectively remove dust and impurities from the discharge roller (9) and the feed roller (11). The blowing section includes a fixed shaft (28) and a bending plate (30). The fixed shaft (28) is fixed inside the housing (1) and located on one side of the box (22); The bending plate (30) is swayably connected to the fixed shaft (28) via a connecting ear (29). The bending plate (30) is V-shaped, with its opening side facing the gap between the box body (22) and the steel strip (7). An air outlet (31) is provided on the side away from the box body (22), and the air outlet (31) faces the discharge roller (9).

6. The stainless steel plastic lifting device according to claim 5, characterized in that, The purging unit also includes a rotating ring (39), an arc plate (40), a sliding rod (33), a spring (37), a fixing block (34), and a ball (36). The rotating ring (39) is fixedly sleeved on the outer wall of the rotating shaft I (8), and the arc plate (40) is fixed on its outer wall. The sliding rod (33) is slidably arranged, and one end of it is provided with a roller (38) that matches the contour of the arc plate (40). The fixing block (34) is fixed to the outer wall of the sliding rod (33), and the spring (37) is sleeved on the sliding rod (33), with its two ends acting on the fixing block (34) and the fixing seat (32) on the housing (1) respectively. The sphere (36) is fixed to the fixing block (34) by the vertical rod (35) and abuts against the bottom of the bending plate (30); When the rotating shaft I (8) rotates, the sliding rod (33) is driven to reciprocate through the cooperation of the arc plate (40), the roller (38) and the spring (37), and then the bending plate (30) is driven to swing back and forth around the fixed shaft (28) through the ball (36).

7. The stainless steel plastic lifting device according to claim 6, characterized in that, Both ends of the housing (1) are provided with connecting seats (2), and a take-up roller (3) and an unwind roller (4) are rotatably connected to the connecting seats (2). The housing (1) has a discharge port (5) and a feed port (6) on both sides corresponding to the take-up roller (3) and the unwind roller (4). The housing (1) is also rotatably connected to two guide rollers (42) located below the discharge roller (9) and the feed roller (11), respectively.

8. The stainless steel plastic lifting device according to claim 7, characterized in that, A protective box (21) is fixed on one side of the housing (1) to cover the worm (19), gear I (13), transmission gear (16), worm wheel (17) and gear II (14).

9. A stainless steel plastic lifting device according to claim 8, characterized in that, The housing (1) is provided with an exhaust pipe (41).

10. A method of using a stainless steel plastic lifting device, applied to the stainless steel plastic lifting device as described in claim 9, characterized in that, Includes the following steps: S1. One end of the steel strip (7) passes through the feed inlet (6), guide roller (42), feed roller (11), discharge roller (9) and discharge outlet (5) in sequence and is wound onto the take-up roller (3). The take-up roller (3) winds up the steel strip (7). Since the heating plate I (12) heats the feed roller (11) and discharge roller (9), the steel strip (7) can be heated and softened when it passes through the feed roller (11) and discharge roller (9), which is convenient for stretching the steel strip (7) to improve the plasticity of the material later. Then, the drive motor (20) drives the rotating rod (18) to rotate. The rotating rod (18) is driven by two worm gears ( 19) Drive two worm gears (17) to rotate. The two worm gears (17) drive the corresponding transmission gears (16) to rotate. The two transmission gears (16) drive gear I (13) and gear II (14) to rotate. Since the diameter of gear I (13) is smaller than the diameter of gear II (14), when the two transmission gears (16) rotate at the same speed, the speed of gear I (13) is greater than the speed of gear II (14). Therefore, a speed difference is formed between the discharge roller (9) and the feed roller (11), which causes the steel strip (7) between the discharge roller (9) and the feed roller (11) to be physically stretched, thereby improving the plasticity of the material at the microscopic level. S2. The steel strip (7) located between the discharge roller (9) and the feed roller (11) is in a suspended state and is prone to bending due to gravity. At this time, it needs to be supported. The blower (27) is connected to the inert gas source through the air inlet pipe and injects the inert gas into the upper and lower boxes (22) through the U-shaped pipe (26). The heating element II (25) in the box (22) can heat the inert gas. The high-temperature inert gas is sprayed out through the air outlet (24) and forms a high-pressure gas film on the upper and lower surfaces of the steel strip (7). The gas pressure difference is used to suspend the strip in the middle of the cavity for support. S3. Multiple V-shaped hole groups (23) on the box body (22) are composed of multiple air outlets (24). The multiple V-shaped hole groups (23) extend obliquely outward from the two sides of the steel strip (7) with the center line of the steel strip (7) as the axis of symmetry. When the high-pressure gas is ejected from the box body (22) through the air outlets (24), not only does it form a micron-level air lubricating film between the steel strip (7) and the plate surface to achieve suspension, but also due to the physical guiding effect of the V-shaped hole groups (23), the airflow will generate a lateral component force on the steel strip (7) that radiates from the center to both sides. While supporting the steel strip (7) by jetting, it forces the steel strip (7) to "flatten" to both sides, effectively preventing the stainless steel strip (7) from producing longitudinal creases in the heat-softened state. S4. After the high-temperature gas is blown out through the air outlet (24) of the box (22) located below, the high-temperature gas flows to both sides along the gap between the steel strip (7) and the box (22). Since the bending plate (30) forms a V shape after bending, and the opening side of the two bending plates (30) faces the gap between the box (22) and the steel strip (7), the high-temperature gas is collected in the bending plate (30) and blown to the outer wall of the corresponding discharge roller (9) and discharge roller (11) through the air outlet (31). This can remove the dust and impurities attached to the outer wall and prevent the dust and impurities from forming indentations on the steel strip (7). S5. During the rotation of shaft I (8) and shaft II (10), the corresponding rotating ring (39) can be driven to rotate. The rotating ring (39) pushes the sliding rod (33) towards the box (22) through the arc plate (40). The cooperation between the arc plate (40) and the spring (37) can drive the fixed block (34) and the sliding rod (33) to move back and forth. The fixed block (34) abuts against the bottom of the bending plate (30) through the ball (36). During the reciprocating movement of the fixed block (34), the bending plate (30) can be driven to swing back and forth around the fixed shaft (28) as the center. It can reciprocate to blow the outer wall of the discharge roller (9) and the discharge roller (11). In addition, the exhaust pipe (41) can discharge the high temperature inert gas in the shell (1) for collection and reuse.

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