A stainless steel sheet stress relief annealing device

Abstract

The application discloses a stainless steel sheet stress relieving annealing device and relates to the technical field of stainless steel processing. The device comprises a base, an annealing box arranged on the top of the base, a supporting mechanism for supporting the stainless steel sheet, a jacking conveying mechanism comprising a plurality of linkage blocks, a lifting assembly for driving the linkage blocks to lift and a displacement assembly for driving the linkage blocks to displace, a linkage adjusting mechanism for driving the linkage blocks to rotate when the linkage blocks displace, and a driving adjusting mechanism for driving the linkage blocks to rotate. In the process of conveying the stainless steel sheet, the stainless steel sheet is driven to rotate, the contact position between the stainless steel sheet and the supporting strip is automatically changed, the contact position between the stainless steel sheet and the supporting strip can be adjusted for multiple times in the process of the stainless steel sheet moving for two times in succession, the stainless steel sheet is heated, kept warm and cooled in each zone respectively, and the heating, keeping warm and cooling of the stainless steel sheet are more uniform, and the quality of the annealing treatment of the stainless steel sheet is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stainless steel processing, in particular to a stress relief annealing device for stainless steel sheet. BACKGROUND

[0002] The stress relief annealing of super martensitic stainless steel is mainly to eliminate the residual stress generated in the processing of the material, prevent deformation or cracking, and prevent deformation or cracking. The stainless steel sheet is subjected to cold rolling, welding and other processes, which will introduce stress. The annealing process includes preheating, heating, holding and cooling.

[0003] In the prior art, when annealing the stainless steel sheet, it is usually fixed in the annealing device. In order to support the stainless steel sheet, the support structure will be in contact with the sheet, but the contact position is difficult to adjust. This fixed contact mode causes temperature difference between the contact position and the non-contact position during the heating, holding and cooling process of the stainless steel sheet, which easily causes cracks and ultimately affects the annealing quality of the stainless steel sheet. SUMMARY

[0004] The purpose of the present application is to provide a stress relief annealing device for stainless steel sheet to solve the above problems in the prior art.

[0005] In order to achieve the above purpose, the present application provides the following technical scheme: a stress relief annealing device for stainless steel sheet, comprising a base and an annealing box mounted on the top of the base, further comprising:

[0006] The support mechanism is arranged in the interior of the annealing box and is used for supporting the stainless steel sheet;

[0007] The jacking conveying mechanism comprises a plurality of linkage blocks, a lifting assembly for driving the linkage blocks to lift and a displacement assembly for driving the linkage blocks to displace;

[0008] The linkage adjusting mechanism is arranged on the inner side of the base and is used for driving the linkage blocks to rotate when the linkage blocks displace;

[0009] The active adjusting mechanism is arranged on the inner side of the base and is used for driving the linkage blocks to rotate.

[0010] Further, one end of the annealing box is provided with an inlet, and the other end of the annealing box is provided with an outlet.

[0011] Further, the interior of the annealing box is sequentially provided with a preheating zone, a heating zone, a holding zone and a cooling zone from the inlet to the outlet.

[0012] Further, the supporting mechanism comprises two supporting strips arranged inside the annealing box along the length direction of the annealing box and a plurality of columns fixed to the bottom of the supporting strips, the bottom end of the columns is fixed to the inner wall of the bottom of the annealing box, and the stainless steel sheet is placed on the top of the two supporting strips.

[0013] Further, the lifting assembly comprises a plurality of air cylinders mounted inside the base, a lifting plate mounted at the elongated end of the air cylinders, and a plurality of linkage rods arranged on the top of the lifting plate.

[0014] The top end of the plurality of linkage rods extends to the inside of the annealing box and is fixed to the bottom of the plurality of linkage blocks, respectively.

[0015] The bottom of the annealing box is provided with a through slot along the length direction thereof, and a telescopic curtain is mounted in the through slot, and the linkage rods pass through the telescopic curtain.

[0016] Further, the displacement assembly comprises a first lead screw rotatably connected inside the base, a plurality of sliding blocks threadedly connected to the outside of the first lead screw, and a first motor mounted on the outer wall of one side of the base.

[0017] The plurality of sliding blocks are respectively sleeved on the outside of the plurality of linkage rods, and the linkage rods can be lifted and rotated in the sliding blocks.

[0018] The output end of the first motor is fixed to one end of the first lead screw.

[0019] The inside of the base is further fixed with a first guide rod, and the plurality of sliding blocks are slidably sleeved on the outside of the first guide rod.

[0020] Further, the linkage adjusting mechanism comprises 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, a key groove is formed on the outer wall of the linkage rod, a key pin is fixedly connected to the inner wall of the sliding sleeve, and the key pin is slidably connected in the key groove.

[0021] The plurality of gears are engaged with the rack, and the top end of the sliding sleeve is rotatably connected to the bottom of the sliding block.

[0022] Further, the top of the lifting plate is provided with a sliding groove along the length direction thereof, the bottom end of the linkage rod is rotatably connected with a driven block, and the driven block is slidably connected in the sliding groove.

[0023] Further, the active adjusting mechanism comprises a second lead screw rotatably connected inside the base and a second motor mounted on the outer wall of the other side of the base.

[0024] The rack is slidably connected inside the base and passes through the base.

[0025] The output end of the second motor is fixed to one end of the second lead screw.

[0026] The outer thread of the second screw rod is connected with a driving block, and the driving block is fixedly connected with the rack;

[0027] The inside of the base is also fixedly connected with a second guide rod, and the driving block is slidingly sleeved on the outside of the second guide rod.

[0028] Compared with the prior art, the stainless steel sheet stress relief annealing device provided by the present application has the following beneficial effects: during the conveying of the stainless steel sheet, the stainless steel sheet is driven to separate from the support strip and rotate, so that the contact position between the stainless steel sheet and the support strip can be automatically changed after the stainless steel sheet returns to the top of the support strip, and the contact position between the stainless steel sheet and the support strip can be adjusted multiple times during the movement of the stainless steel sheet for two adjacent times, so that the heating, holding and heat dissipation of the stainless steel sheet in each zone are more uniform, the quality of the annealing treatment of the stainless steel sheet is improved, and the problem of uneven temperature of the stainless steel sheet caused by the difficulty in adjusting the fixed placement of the stainless steel sheet in the prior art, which further leads to the temperature difference of the stainless steel sheet and the crack caused by the temperature difference, is solved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0030] Figure 1 It is a first view schematic diagram of the overall structure of the present application.

[0031] Figure 2 It is a second view schematic diagram of the overall structure of the present application.

[0032] Figure 3 It is a schematic diagram of the internal structure of the base and the annealing box of the present application.

[0033] Figure 4 It is a schematic diagram of the support mechanism structure of the present application.

[0034] Figure 5 It is a schematic diagram of the jacking conveying mechanism and the linkage adjusting mechanism structure of the present application.

[0035] Figure 6 It is a schematic diagram of the active adjusting mechanism structure of the present application.

[0036] Explanation of reference signs:

[0037] 1, base; 2, annealing box; 3, linkage block; 4, feed inlet; 5, discharge outlet; 6, preheating zone; 7, temperature rising zone; 8, temperature holding zone; 9, cooling zone; 10, support bar; 11, stand; 12, air cylinder; 13, lifting plate; 14, linkage rod; 15, telescopic curtain; 16, first lead screw; 17, first motor; 18, first guide rod; 19, sliding sleeve; 20, gear; 21, rack; 22, sliding groove; 23, driven block; 24, second lead screw; 25, second motor; 26, driving block; 27, second guide rod; 28, sliding block. DETAILED DESCRIPTION

[0038] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0039] Embodiment: please refer to Figures 1-6 A stainless steel sheet stress relief annealing device, comprising a base 1 and an annealing box 2 installed on the top of the base 1, one end of the annealing box 2 is provided with a feed inlet 4, the other end of the annealing box 2 is provided with a discharge outlet 5, the inside of the annealing box 2 is sequentially provided with a preheating zone 6, a temperature rising zone 7, a temperature holding zone 8 and a cooling zone 9 from the feed inlet 4 to the discharge outlet 5.

[0040] The stainless steel sheet is placed on the top of the two support bars 10 through the feed inlet 4 and preheated in the preheating zone 6. During the preheating process, the stainless steel sheet is gradually moved towards the temperature rising zone 7 by the jacking conveying mechanism. After the stainless steel sheet enters the inside of the temperature rising zone 7, it starts to heat the stainless steel sheet to the set temperature, and at the same time, the stainless steel sheet is gradually moved towards the temperature holding zone 8. After the stainless steel enters the inside of the temperature holding zone 8, the temperature holding treatment is carried out on the stainless steel sheet, so that the stainless steel sheet is maintained at the set temperature, and at the same time, the stainless steel sheet is gradually moved towards the cooling zone 9. After the stainless steel sheet enters the inside of the cooling zone 9, it starts to naturally cool down, and at the same time, the stainless steel sheet is gradually moved towards the discharge outlet 5, and finally discharged from the discharge outlet 5.

[0041] It also comprises:

[0042] A support mechanism is arranged in the inside of the annealing box 2 for supporting the stainless steel sheet. The support mechanism comprises two support bars 10 arranged in the inside of the annealing box 2 along the length direction of the annealing box 2 and a plurality of stand 11 fixedly connected to the bottom of the support bar 10. The bottom end of the stand 11 is fixedly connected to the inner wall of the bottom of the annealing box 2. The stainless steel sheet is placed on the top of the two support bars 10. The top of the side of the support bar 10 close to the feed inlet 4 can be provided with a limiting block. When the staff places the stainless steel sheet on the top of the support bar 10, the side of the stainless steel sheet abuts against the limiting block, so that the spacing between the stainless steel sheets can be ensured. When the stainless steel sheet is driven to move upwards, the lower edge of the stainless steel sheet after moving upwards is higher than the upper edge of the limiting block.

[0043] The lifting conveying mechanism comprises a plurality of linkage blocks 3, a lifting assembly for driving the linkage blocks 3 to lift and a displacement assembly for driving the linkage blocks 3 to displace, the lifting assembly comprises a plurality of air cylinders 12 installed inside the base 1, a lifting plate 13 installed at the extended ends of the plurality of air cylinders 12 and a plurality of linkage rods 14 arranged on the top of the lifting plate 13, the top ends of the plurality of linkage rods 14 extend into the interior of the annealing box 2 and are fixedly connected with the bottoms of the plurality of linkage blocks 3 respectively, a through slot is formed in the bottom of the annealing box 2 along the length direction thereof, a telescopic curtain 15 is installed inside the through slot, and the linkage rods 14 are arranged through the telescopic curtain 15, the displacement assembly comprises a first lead screw 16 rotatably connected inside the base 1, a plurality of sliding blocks 28 threadedly connected outside 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 sliding blocks 28 are respectively sleeved outside the plurality of linkage rods 14, and the linkage rods 14 can lift and rotate inside the sliding blocks 28, and the output end of the first motor 17 is fixedly connected with one end of the first lead screw 16; the inside of the base 1 is further fixedly connected with a first guide rod 18, and the plurality of sliding blocks 28 are slidably sleeved outside the first guide rod 18;

[0044] When it is needed to drive the stainless steel sheet to move leftward, the plurality of air cylinders 12 are first controlled to drive the lifting plate 13 to move upward, thereby driving the plurality of linkage rods 14 to synchronously move upward, when the bottoms of the linkage blocks 3 contact the bottom of the stainless steel sheet, the stainless steel sheet is started to move upward and separated from the supporting strips 10, then the first motor 17 is controlled to drive the first lead screw 16 to rotate clockwise, thereby driving the plurality of sliding blocks 28 to move leftward along the outer wall of the first guide rod 18, the distance of leftward movement of the sliding blocks 28 is the center distance of the two linkage rods 14, then the air cylinders 12 are controlled to drive the lifting plate 13 to move downward and reset, thereby driving the stainless steel sheet to move downward and reset through the linkage rods 14 and the linkage blocks 3, the linkage blocks 3 are separated from the stainless steel sheet, the stainless steel sheet falls on the top of the supporting strips 10 again after moving leftward, then the first motor 17 is controlled to drive the first lead screw 16 to rotate counterclockwise, thereby driving the plurality of sliding blocks 28 to move rightward and reset, and the linkage rods 14 and the linkage blocks 3 move rightward and reset accordingly.

[0045] The linkage adjusting mechanism is arranged inside the base 1 and is used for driving the linkage blocks 3 to rotate when the linkage blocks 3 displace, the linkage adjusting mechanism comprises a sliding sleeve 19 slidably sleeved outside the linkage rod 14, a gear 20 fixedly sleeved outside the sliding sleeve 19 and a rack 21 arranged inside the base 1, a key groove is formed in the outer wall of the linkage rod 14, a key pin is fixedly connected to the inner wall of the sliding sleeve 19, and the key pin is slidably connected inside the key groove, the plurality of gears 20 are all in mesh with the rack 21, and the top end of the sliding sleeve 19 is rotatably connected to the bottom of the sliding block 28;

[0046] During the movement of the slider 28 to the left, the linkage rod 14 is driven to move to the left, and through the meshing between the gear 20 and the rack 21, the sleeve 19 and the linkage rod 14 are driven to rotate 90°, and then through the linkage block 3, the stainless steel sheet is driven to rotate 90°, so that when the stainless steel sheet falls to the top of the support strip 10 again, the contact position between the stainless steel sheet and the support strip 10 can be changed, the preheating speed of the stainless steel sheet in the preheating area 6 is more uniform, the temperature rising speed in the temperature rising area 7 is more uniform, the temperature holding temperature in the temperature holding area 8 is more uniform, and the cooling speed in the cooling area 9 is more uniform.

[0047] The top of the lifting plate 13 is provided with a sliding groove 22 along the length direction, and the bottom end of the linkage rod 14 is rotatably connected with a driven block 23 which is slidably connected in the sliding groove 22;

[0048] When the linkage rod 14 moves to the left or to the right, the driven block 23 is driven to move along the inner wall of the sliding groove 22 synchronously, and when the cylinder 12 drives the lifting plate 13 to lift, the linkage rod 14 is driven to lift synchronously through the driven block 23.

[0049] The active adjustment mechanism is arranged on the inner side of the base 1 and is used to drive the linkage block 3 to rotate, and the active adjustment mechanism comprises a second screw rod 24 which is rotatably connected in the base 1 and a second motor 25 which is arranged on the other outer wall of the base 1; the rack 21 is slidably connected in 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 screw rod 24; the outer part of the second screw rod 24 is threadedly connected with a driving block 26 which is fixedly connected with the rack 21; the inner part of the base 1 is further fixedly connected with a second guide rod 27, and the driving block 26 is slidably sleeved on the outer part of the second guide rod 27;

[0050] After the stainless steel sheet is separated from the support strip 10 by controlling the multiple cylinders 12 to drive the lifting plate 13 to move upward and by the linkage rod 14 and the linkage block 3, the second motor 25 is controlled to drive the second screw rod 24 to rotate clockwise, the driving block 26 is driven to move left along the outside of the second guide rod 27, the rack 21 is synchronously moved, the sliding sleeve 19 and the linkage rod 14 are driven to rotate 90° through the meshing between the rack 21 and the gear 20, the cylinder 12 is controlled to drive the stainless steel sheet to move downward and fall on the top of the support strip 10, so that the contact position of the stainless steel sheet and the support strip 10 can be adjusted without driving the stainless steel sheet to move, the stainless steel sheet falls on the top of the support strip 10, the second motor 25 is controlled to drive the second screw rod 24 to rotate counterclockwise, the driving block 26 and the rack 27 are driven to move right to reset, the above operation is repeated, the contact position between the stainless steel sheet and the support strip 10 is adjusted multiple times during the movement of the stainless steel sheet for two times, the stainless steel sheet is uniformly heated, kept warm and cooled in each zone, meanwhile, the stainless steel sheet and the support strip are prevented from being in contact at the same position for a long time and from being adhered.

[0051] It should be noted that the device structure and the drawings of the present application mainly describe the principle of the present application, and the power mechanism, power supply system and control system of the device are not fully described in the design principle technology, and the specific power mechanism, power supply system and control system can be clearly known by the technical personnel in the field under the premise of understanding the principle of the above application; the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the technical personnel in the field; the above only describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that the ordinary technical personnel in the field can modify the described embodiments in various ways without deviating from the spirit and scope of the present application. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

[0052] In the description of the present application, it should be understood that the orientation or positional relationship indicated by "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0053] Furthermore, the terms "first", "second", etc. are used only for the purpose of description and do not imply or imply relative importance or imply the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited. In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A stainless steel sheet stress relief annealing apparatus comprising a base and an annealing box installed on the top of the base, characterized in that, Also include: Support mechanism, which is arranged in the interior of annealing box, for stainless steel sheet support; Jacking conveying mechanism, comprising a plurality of linkage blocks, a lifting assembly for driving linkage block lifting and a displacement assembly for driving linkage block displacement; Linkage adjustment mechanism, which is arranged in the inner side of the base, is used to drive the rotation of the linkage block when the linkage block is displaced; Active adjustment mechanism, which is arranged in the inner side of the base, is used to drive the rotation of the linkage block; Lifting assembly includes a plurality of cylinders mounted in the interior of the base, a lifting plate mounted on the elongated end of the plurality of cylinders and a plurality of linkage rods arranged on the top of the lifting plate; the top end of the plurality of linkage rods extends into the interior of the annealing box and is respectively fixed to the bottom of the plurality of linkage blocks; the bottom of the annealing box is provided with a through slot along the length direction thereof, and a telescopic curtain is mounted in the through slot; the linkage rod penetrates through the telescopic curtain; The displacement assembly comprises a first screw rod rotatably connected in the interior of the base, a plurality of sliding blocks threadedly connected to the exterior of the first screw rod and a first motor mounted on the outer wall of one side of the base; the plurality of sliding blocks are respectively sleeved on the exterior of the plurality of linkage rods; the output end of the first motor is fixedly connected to one end of the first screw rod; the interior of the base is further fixedly connected with a first guide rod, and the plurality of sliding blocks are slidably sleeved on the exterior of the first guide rod; The linkage adjustment mechanism comprises a sliding sleeve slidably sleeved on the exterior of the linkage rod, a gear fixedly sleeved on the exterior of the sliding sleeve and a rack arranged in the interior of the base; The plurality of gears are engaged with the rack, and the top end of the sliding sleeve is rotatably connected to the bottom of the sliding block; The top of the lifting plate is provided with a sliding groove along the length direction thereof, and the bottom end of the linkage rod is rotatably connected with a driven block which is slidably connected in the interior of the sliding groove.

2. The apparatus for stress relief annealing of stainless steel sheet according to claim 1, wherein One end of the annealing box is provided with a feeding port, and the other end of the annealing box is provided with a discharging port.

3. A stainless steel sheet stress relief annealing apparatus according to claim 2, wherein The interior of the annealing box is sequentially provided with a preheating zone, a temperature rising zone, a temperature maintaining zone and a cooling zone from the feeding port to the discharging port.

4. The apparatus for stress relief annealing of stainless steel sheet according to claim 3, wherein The support mechanism comprises two support bars arranged in the interior of the annealing box along the length direction thereof and a plurality of stand columns fixedly connected to the bottom of the support bars, the bottom end of the stand column is fixedly connected to the inner wall of the bottom of the annealing box, and the stainless steel sheet is placed on the top of the two support bars.

5. The apparatus for stress relief annealing of stainless steel sheet according to claim 4, wherein The active adjustment mechanism comprises a second screw rod rotatably connected in the interior of the base and a second motor mounted on the outer wall of the other side of the base; The rack is slidably connected in the interior of the base and penetrates through the base; The output end of the second motor is fixedly connected to one end of the second screw rod; The exterior of the second screw rod is threadedly connected with a driving block, and the driving block is fixedly connected with the rack; The interior of the base is further fixedly connected with a second guide rod, and the driving block is slidably sleeved on the exterior of the second guide rod.

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