Stainless steel sheet stress relief annealing device

Abstract

The invention discloses a stainless steel sheet stress relief annealing device, which relates to the technical field of stainless steel processing, and comprises a base and an annealing box mounted at the top of the base, and further comprises a supporting mechanism, a stress relief mechanism and a control mechanism, the jacking conveying mechanism comprises a plurality of linkage blocks, a lifting assembly used for driving the linkage blocks to ascend and descend and a displacement assembly used for driving the linkage blocks to displace. The linkage adjusting mechanism is used for driving the linkage block to rotate when the linkage block moves; the active adjusting mechanism is used for driving the linkage block to rotate; in the stainless steel sheet conveying process, the stainless steel sheet is driven to rotate, the contact position between the stainless steel sheet and the supporting strip is automatically changed, and in the two adjacent moving processes of the stainless steel sheet, the contact position between the stainless steel sheet and the supporting strip can be repeatedly adjusted; therefore, the stainless steel sheet is more uniform in temperature rise, heat preservation and heat dissipation in each area, and the annealing treatment quality of the stainless steel sheet is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of stainless steel processing, and particularly relates to a stress-relieving annealing device for stainless steel thin plates. Background Art

[0002] The stress-relieving annealing of super martensitic stainless steel is mainly to eliminate the residual stress generated during the processing of the material and prevent deformation or cracking. The stainless steel thin plate undergoes processes such as cold rolling and welding, and these processes will introduce stress. The annealing treatment process includes several steps such as preheating, heating, heat preservation, and cooling.

[0003] In the prior art, when annealing a stainless steel thin plate, it is usually fixedly placed inside the annealing device. In order to support the stainless steel thin plate, the support structure will contact the thin plate, but the contact position is difficult to adjust. This fixed contact method causes a temperature difference between the contact position and the non-contact position of the stainless steel thin plate during the heating, heat preservation, and cooling processes, thereby easily causing cracks and ultimately affecting the annealing quality of the stainless steel thin plate. Summary of the Invention

[0004] The purpose of the present invention is to provide a stress-relieving annealing device for stainless steel thin plates to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A stress-relieving annealing device for stainless steel thin plates, including a base and an annealing box installed on the top of the base, further including: A support mechanism, which is arranged inside the annealing box and is used to support the stainless steel thin plate; A jacking and conveying mechanism, which includes a plurality of linkage blocks, a lifting component for driving the linkage blocks to lift, and a displacement component for driving the linkage blocks to displace; A linkage adjustment mechanism, which is arranged inside the base and is used to drive the linkage blocks to rotate when the linkage blocks displace; A main adjustment mechanism, which is arranged inside the base and is used to drive the linkage blocks to rotate.

[0006] Further, one end of the annealing box is provided with a feed inlet, and the other end of the annealing box is provided with a discharge outlet.

[0007] Further, the inside of the annealing box is sequentially provided with a preheating zone, a heating zone, a heat preservation zone, and a cooling zone from the direction of the feed inlet to the discharge outlet.

[0008] Further, the support mechanism includes two support bars arranged inside the annealing box along the length direction of the annealing box and a plurality of columns fixedly connected to the bottom of the support bars. The bottom ends of the columns are fixedly connected to the inner wall of the bottom of the annealing box, and the stainless steel thin plate is placed on the tops of the two support bars.

[0009] Further, the lifting assembly includes a plurality of cylinders installed inside the base, a lifting plate installed at the extending ends of the plurality of cylinders, and a plurality of linkage rods arranged at the top of the lifting plate; The top ends of the plurality of linkage rods all extend into the annealing box and are fixedly connected to the bottoms of a plurality of linkage blocks respectively; A through groove is formed in the bottom of the annealing box along its length direction, a telescopic curtain is installed inside the through groove, and the linkage rod penetrates through the telescopic curtain.

[0010] Further, the displacement assembly includes a first lead screw rotatably connected inside the base, a plurality of sliders threadedly connected to the outside of the first lead screw, and a first motor installed on the outer wall of one side of the base; The plurality of sliders are respectively sleeved on the outside of the plurality of linkage rods, and the linkage rods can lift and rotate inside the sliders; The output end of the first motor is fixedly connected to one end of the first lead screw; A first guide rod is further fixedly connected inside the base, and the plurality of sliders are all slidably sleeved on the outside of the first guide rod.

[0011] Further, the linkage adjustment mechanism includes a sliding sleeve slidably sleeved on the outside of the linkage rod, a gear fixedly sleeved on the outside of the sliding sleeve, and a rack arranged inside the base. Key grooves are formed on the outer wall of the linkage rod, and key pins are fixedly connected to the inner wall of the sliding sleeve. The key pins are slidably connected inside the key grooves; The plurality of gears are all meshed with the rack, and the top end of the sliding sleeve is rotatably connected to the bottom of the slider.

[0012] Further, a chute is formed in the top of the lifting plate along its length direction. A driven block is rotatably connected to the bottom end of the linkage rod, and the driven block is slidably connected inside the chute.

[0013] Further, the active adjustment mechanism includes a second lead screw rotatably connected inside the base and a second motor installed on the outer wall of the other side of the base; The rack is slidably connected inside the base and penetrates through the base; The output end of the second motor is fixedly connected to one end of the second lead screw; A driving block is threadedly connected to the outside of the second lead screw, and the driving block is fixedly connected to the rack; A second guide rod is further fixedly connected inside the base, and the driving block is slidably sleeved on the outside of the second guide rod.

[0014] Compared with the prior art, a stress-relieving annealing device for stainless steel thin plates provided by the present invention has the following beneficial effects: During the process of conveying the stainless steel thin plate, the stainless steel thin plate is driven to separate from the support bar and rotate, so that after the stainless steel thin plate returns to the top of the support bar, the contact position between the stainless steel thin plate and the support bar can be automatically changed, and during two adjacent movements of the stainless steel thin plate, the contact position between the stainless steel thin plate and the support bar can be adjusted multiple times, making the heating, heat preservation, and heat dissipation of the stainless steel thin plate more uniform in each area, improving the quality of the annealing treatment of the stainless steel thin plate, and solving the problem in the prior art that the fixed placement of the stainless steel thin plate is difficult to adjust, resulting in uneven heating and cooling temperatures, and further causing cracks due to temperature differences in the stainless steel thin plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0016] Figure 1 Schematic diagram of the overall structure of the present invention from the first perspective; Figure 2 Schematic diagram of the overall structure of the present invention from the second perspective; Figure 3 Schematic diagram of the internal structure of the base and annealing box of the present invention; Figure 4 Schematic diagram of the support mechanism structure of the present invention; Figure 5 Schematic diagram of the jacking and conveying mechanism and linkage adjustment mechanism of the present invention; Figure 6 Schematic diagram of the active adjustment mechanism structure of the present invention.

[0017] Description of the reference numerals: 1. Base; 2. Annealing box; 3. Linking block; 4. Feeding port; 5. Discharging port; 6. Preheating zone; 7. Heating-up zone; 8. Heat-preservation zone; 9. Cooling zone; 10. Support bar; 11. Column; 12. Cylinder; 13. Lifting plate; 14. Linking rod; 15. Telescopic curtain; 16. First lead screw; 17. First motor; 18. First guide rod; 19. Sliding sleeve; 20. Gear; 21. Rack; 22. Chute; 23. Driven block; 24. Second lead screw; 25. Second motor; 26. Driving block; 27. Second guide rod; 28. Slide block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Example: Please refer to Figures 1-6 , a stress-relieving annealing device for stainless steel thin plates, comprising a base 1 and an annealing box 2 installed on the top of the base 1. An inlet 4 is opened at one end of the annealing box 2, and an outlet 5 is opened at the other end of the annealing box 2. Inside the annealing box 2, a preheating zone 6, a heating-up zone 7, a heat-preservation zone 8, and a cooling zone 9 are sequentially arranged from the direction of the inlet 4 to the outlet 5. The stainless steel thin plate is placed on the tops of two support bars 10 through the inlet 4 and preheated in the preheating zone 6. During the preheating process, the stainless steel thin plate is gradually moved towards the heating-up zone 7 by the lifting and conveying mechanism. After the stainless steel thin plate enters the heating-up zone 7, it starts to heat the stainless steel thin plate to the set temperature, and at the same time, the stainless steel thin plate is gradually moved towards the heat-preservation zone 8. After the stainless steel enters the heat-preservation zone 8, heat preservation treatment is carried out on the stainless steel thin plate to keep the stainless steel thin plate at the set temperature, and at the same time, the stainless steel thin plate is gradually moved towards the cooling zone 9. After the stainless steel thin plate enters the cooling zone 9, it starts to cool naturally, and at the same time, the stainless steel thin plate is gradually moved towards the outlet 5 and finally discharged from the outlet 5.

[0020] It further includes: A support mechanism, which is arranged inside the annealing box 2 and is used to support the stainless steel thin plate. The support mechanism includes two support bars 10 arranged inside the annealing box 2 along the length direction of the annealing box 2 and a plurality of columns 11 fixedly connected to the bottom of the support bars 10. The bottom ends of the columns 11 are fixedly connected to the inner wall of the bottom of the annealing box 2. The stainless steel thin plate is placed on the tops of the two support bars 10. A limiting block can be arranged at the top of the support bar 10 close to the inlet 4. When the staff places the stainless steel thin plate on the top of the support bar 10, one side of the stainless steel thin plate abuts against the limiting block, so as to ensure the spacing between the stainless steel thin plates. When driving the stainless steel thin plate to move upward, the lower edge of the stainless steel thin plate after upward movement is higher than the upper edge of the limiting block.

[0021] Lifting and conveying mechanism, which includes a plurality of linkage blocks 3, a lifting component for driving the lifting of the linkage blocks 3, and a displacement component for driving the displacement of the linkage blocks 3. The lifting component includes a plurality of cylinders 12 installed inside the base 1, a lifting plate 13 installed at the extended ends of the plurality of cylinders 12, and a plurality of linkage rods 14 arranged at the top of the lifting plate 13; the top ends of the plurality of linkage rods 14 all extend into the annealing box 2 and are respectively fixedly connected to the bottoms of the plurality of linkage blocks 3; a through groove is formed along the length direction at the bottom of the annealing box 2, and a telescopic curtain 15 is installed inside the through groove, and the linkage rods 14 penetrate through the telescopic curtain 15. The displacement component includes a first lead screw 16 rotatably connected inside the base 1, a plurality of sliders 28 threadedly connected to the outside of the first lead screw 16, and a first motor 17 installed on the outer wall of one side of the base 1; the plurality of sliders 28 are respectively sleeved on the outside of the plurality of linkage rods 14, and the linkage rods 14 can lift and rotate inside the sliders 28; the output end of the first motor 17 is fixedly connected to one end of the first lead screw 16; a first guide rod 18 is also fixedly connected inside the base 1, and the plurality of sliders 28 are all slidably sleeved on the outside of the first guide rod 18; When it is necessary to drive the stainless steel sheet to move to the left, first control the plurality of cylinders 12 to drive the lifting plate 13 to move upward, and then drive the plurality of linkage rods 14 to move upward synchronously. When the bottom of the linkage block 3 contacts the bottom of the stainless steel sheet, start driving the stainless steel sheet to move upward to separate from the support bar 10. Then control the first motor 17 to drive the first lead screw 16 to rotate clockwise, driving the plurality of sliders 28 to move leftward along the outer wall of the first guide rod 18. The distance that the sliders 28 move leftward is the center distance between two linkage rods 14. Then control the cylinders 12 to drive the lifting plate 13 to move downward and reset, so as to drive the stainless steel sheet to move downward and reset through the linkage rods 14 and the linkage blocks 3. The linkage block 3 disengages from the stainless steel sheet, so that the stainless steel sheet falls back onto the top of the support bar 10 after moving to the left. Then control the first motor 17 to drive the first lead screw 16 to rotate counterclockwise, driving the plurality of sliders 28 to move rightward and reset, and the linkage rods 14 and the linkage blocks 3 move rightward and reset accordingly.

[0022] Linkage adjustment mechanism, which is arranged inside the base 1 and is used to drive the rotation of the linkage block 3 when the linkage block 3 is displaced. The linkage adjustment mechanism includes a sliding sleeve 19 slidably sleeved on the outside of the linkage rod 14, a gear 20 fixedly sleeved on the outside of the sliding sleeve 19, and a rack 21 arranged inside the base 1. A key groove is formed on the outer wall of the linkage rod 14, and a key pin is fixedly connected to the inner wall of the sliding sleeve 19. The key pin is slidably connected inside the key groove; the plurality of gears 20 are all meshed with the rack 21, and the top end of the sliding sleeve 19 is rotatably connected to the bottom of the slider 28; During the process of the slider 28 driving the linkage rod 14 to move leftward, through the meshing between the gear 20 and the rack 21, the sliding sleeve 19 and the linkage rod 14 are driven to rotate by 90°. Furthermore, the stainless steel thin plate is driven to rotate by 90° through the linkage block 3. Thus, when the stainless steel thin plate falls back onto the top of the support bar 10, the contact position between the stainless steel thin plate and the support bar 10 can be changed, making the preheating speed of the stainless steel thin plate more uniform inside the preheating zone 6, the heating speed more uniform inside the heating zone 7, the heat preservation temperature more uniform inside the heat preservation zone 8, and the cooling speed more uniform inside the cooling zone 9.

[0023] A chute 22 is formed along the length direction at the top of the lifting plate 13. The bottom end of the linkage rod 14 is rotatably connected with a driven block 23, and the driven block 23 is slidably connected inside the chute 22. When the linkage rod 14 moves leftward or rightward, it drives the driven block 23 to move synchronously along the inner wall of the chute 22. When the air cylinder 12 drives the lifting plate 13 to lift or lower, the linkage rod 14 is driven to lift or lower synchronously through the driven block 23.

[0024] The active adjustment mechanism is arranged inside the base 1 and is used to drive the linkage block 3 to rotate. The active adjustment mechanism includes a second lead screw 24 rotatably connected inside the base 1 and a second motor 25 installed on the outer wall of the other side of the base 1; the rack 21 is slidably connected inside the base 1 and penetrates through the base 1; the output end of the second motor 25 is fixedly connected with one end of the second lead screw 24; a driving block 26 is threadedly connected to the outside of the second lead screw 24, and the driving block 26 is fixedly connected with the rack 21; a second guide rod 27 is also fixedly connected inside the base 1, and the driving block 26 is slidably sleeved on the outside of the second guide rod 27. After controlling a plurality of air cylinders 12 to drive the lifting plate 13 to move upward and driving the stainless steel thin plate to separate from the support bar 10 through the linkage rod 14 and the linkage block 3, by controlling the second motor 25 to drive the second lead screw 24 to rotate clockwise, the driving block 26 is driven to move leftward along the outside of the second guide rod 27, and the rack 21 moves synchronously. Through the meshing between the rack 21 and the gear 20, the sliding sleeve 19 and the linkage rod 14 are driven to rotate by 90°. Then, control the air cylinder 12 to drive the stainless steel thin plate to move downward and fall onto the top of the support bar 10. Thus, even when the stainless steel thin plate is not driven to move, the contact position between the stainless steel thin plate and the support bar 10 can be adjusted. After the stainless steel thin plate falls onto the top of the support bar 10, control the second motor 25 to drive the second lead screw 24 to rotate counterclockwise, driving the driving block 26 and the rack 27 to move rightward to reset. Repeat the above operations. During two adjacent movements of the stainless steel thin plate, the contact position between the stainless steel thin plate and the support bar 10 is adjusted multiple times, also making the heating, heat preservation, and heat dissipation of the stainless steel thin plate uniform inside each zone. At the same time, it can also prevent the stainless steel thin plate from contacting the support bar at the same position for a long time and prevent the problem of adhesion between the stainless steel thin plate and the support bar.

[0025] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. Based on the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. On the premise that those skilled in the art understand the principle of the above invention, the details of its power mechanism, power supply system and control system can be clearly known. The control mode of the application document is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art; only some exemplary embodiments of the present invention are described above by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined. In addition, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A stress-relieving annealing device for stainless steel thin plates, comprising a base (1) and an annealing box (2) installed on the top of the base (1), characterized in that, Further included are: a support mechanism, which is arranged inside the annealing box (2) and is used for supporting the stainless steel thin plate; a lifting and conveying mechanism, which includes a plurality of linkage blocks (3), a lifting component for driving the linkage blocks (3) to lift, and a displacement component for driving the linkage blocks (3) to displace; a linkage adjustment mechanism, which is arranged inside the base (1) and is used for driving the linkage blocks (3) to rotate when they displace; a main adjustment mechanism, which is arranged inside the base (1) and is used for driving the linkage blocks (3) to rotate.

2. The stress-relieving annealing device for stainless steel thin plates according to claim 1, wherein, One end of the annealing box (2) is provided with a feed port (4), and the other end of the annealing box (2) is provided with a discharge port (5).

3. A stress-relieving annealing device for stainless steel thin plates according to claim 2, characterized in that, Inside the annealing box (2), a preheating zone (6), a heating-up zone (7), a heat preservation zone (8), and a cooling zone (9) are sequentially arranged from the direction of the feed port (4) to the discharge port (5).

4. A stress-relieving annealing device for stainless steel thin plates according to claim 3, characterized in that, The support mechanism includes two support bars (10) arranged inside the annealing box (2) along the length direction thereof and a plurality of columns (11) fixedly connected to the bottom of the support bars (10). The bottom ends of the columns (11) are fixedly connected to the inner wall of the bottom of the annealing box (2), and the stainless steel thin plate is placed on the tops of the two support bars (10).

5. A stress-relieving annealing device for stainless steel thin plates according to claim 4, characterized in that, The lifting component includes a plurality of cylinders (12) installed inside the base (1), a lifting plate (13) installed at the extending ends of the plurality of cylinders (12), and a plurality of linkage rods (14) arranged on the top of the lifting plate (13); The tops of the plurality of linkage rods (14) all extend into the annealing box (2) and are respectively fixedly connected to the bottoms of the plurality of linkage blocks (3); A through groove is formed in the bottom of the annealing box (2) along its length direction, a telescopic curtain (15) is installed inside the through groove, and the linkage rods (14) penetrate through the telescopic curtain (15).

6. The stress-relieving annealing device for stainless steel thin plates according to claim 5, characterized in that, The displacement component includes a first lead screw (16) rotatably connected inside the base (1), a plurality of sliders (28) threadedly connected to the outside of the first lead screw (16), and a first motor (17) installed on the outer wall of one side of the base (1); The plurality of sliders (28) are respectively sleeved on the outside of the plurality of linkage rods (14); The output end of the first motor (17) is fixedly connected to one end of the first lead screw (16); A first guide rod (18) is also fixedly connected inside the base (1), and the plurality of sliders (28) are all slidably sleeved on the outside of the first guide rod (18).

7. An apparatus for stress-relieving annealing of a stainless steel thin plate according to claim 6, characterized in that, The linkage adjustment mechanism includes a sliding sleeve (19) slidably sleeved on the outside of the linkage rod (14), a gear (20) fixedly sleeved on the outside of the sliding sleeve (19), and a rack (21) arranged inside the base (1); The plurality of gears (20) are all engaged with the rack (21), and the top end of the sliding sleeve (19) is rotatably connected to the bottom of the slider (28).

8. A stress-relieving annealing device for stainless steel thin plates according to claim 7, characterized in that, A chute (22) is formed in the top of the lifting plate (13) along its length direction. A driven block (23) is rotatably connected to the bottom end of the linkage rod (14), and the driven block (23) is slidably connected inside the chute (22).

9. A stress-relieving annealing device for stainless steel thin plates according to claim 8, characterized in that, The main adjustment mechanism includes a second lead screw (24) rotatably connected inside the base (1) and a second motor (25) installed on the outer wall of the other side of the base (1); The rack (21) is slidably connected to the inside of the base (1) and penetrates through the base (1); The output end of the second motor (25) is fixedly connected to one end of the second lead screw (24); The outside of the second lead screw (24) is threadedly connected with a driving block (26), and the driving block (26) is fixedly connected to the rack (21); A second guide rod (27) is also fixedly connected to the inside of the base (1), and the driving block (26) is slidably sleeved on the outside of the second guide rod (27).

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