Annealing furnace roller changing and grinding system

Abstract

The present invention discloses an annealing furnace roller changing and grinding system, including a roller changing device, a roller storage rack, and a furnace roller debulking grinder. The roller changing device includes a frame, two slide rails arranged in parallel on the frame, a slide seat arranged between the two slide rails, a slide seat driving mechanism for driving the slide seat to move along the length direction of the slide rails, a swing arm rotatably connected to the slide seat, a swing arm driving mechanism arranged on the slide seat and used to drive the swing arm to swing, a clamp arranged on the swing arm, and a cooling mechanism for cooling the furnace roller. The annealing furnace roller changing and grinding system provided by the present invention extracts the old furnace roller from the annealing furnace for cooling through the roller changing device, and assists the staff to complete the roller changing work of the new furnace roller; in addition, the replaced old furnace roller is ground and refurbished on site with the cooperation of the roller storage rack and the furnace roller debulking grinder, which not only reduces the time and labor cost consumed by long-distance lifting of the old furnace roller and the new furnace roller, but also reduces the transportation cost of carrying the new and old furnace rollers between the grinding and refurbishing factories.

Description

Technical Field

[0001] The invention relates to the technical field of strip steel production, and in particular to an annealing furnace roll changing and grinding system. Background Art

[0002] After cold rolling, stainless steel strip needs to be annealed in an annealing furnace to obtain the required mechanical processing properties. The annealing furnace currently used is equipped with a preheating section, a heating section, and a cooling section; the strip at room temperature enters the furnace inner diameter preheating section and heating section for continuous heating. Due to the small amount of iron oxide on the surface of the strip being reduced to sponge iron under high temperature and reducing atmosphere conditions, coupled with the speed difference between the strip and the furnace roller (the change in unit speed and the speed difference of the inertial system of the steel strip) and the roughness of the furnace roller surface, the generated sponge iron is easy to take root and grow at the valley point of the roller surface roughness, and the longer it grows, the more it accumulates, and finally forms nodules, which print concave pitting serious defects on the strip, affecting the quality of the strip product.

[0003] Therefore, the furnace rollers need to be replaced after working for several hours. Since the annealing furnace is set at a high place, the furnace rollers need to be removed every time the rollers are replaced, and then the removed old furnace rollers are lifted to the ground by lifting equipment, and then the new furnace rollers are lifted from the ground to the annealing furnace for roller replacement. These old furnace rollers will be collected and transported to other factories, and the nodules on the old furnace rollers will be polished and removed for recycling. However, after the old furnace rollers are removed, they need to be lifted over a long distance, which takes a long time and has low work efficiency; and the production cost of transporting multiple old furnace rollers to other factories for processing and reuse is high. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide an annealing furnace roll changing and grinding system, which is designed to complete the furnace roll changing work and the grinding and refurbishment of old furnace rolls on site, thereby reducing the time consumption and production costs caused by long-distance lifting and transportation.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A roller changing and grinding system for an annealing furnace comprises a roller changing device, a roller storage rack, and a furnace roller nodule removal grinder. The roller changing device comprises a frame, two slide rails arranged in parallel on the frame, a slide seat arranged between the two slide rails, a slide seat driving mechanism for driving the slide seat to move along the length direction of the slide rails, a swing arm rotatably connected to the slide seat, a swing arm driving mechanism arranged on the slide seat and used to drive the swing arm to swing, a clamp arranged on the swing arm, and a cooling mechanism for cooling the furnace roller; the clamp is used to clamp the furnace roller; the furnace roller nodule removal grinder is used to remove nodules on the furnace roller; the roller storage rack is used to store multiple furnace rollers.

[0007] The cooling mechanism includes a water cooler, a first water pipe and a second water pipe connected to the water cooler, a tray arranged on one of the slide rails, a drag chain arranged on the tray, and a bracket arranged on the slide seat; one end of the drag chain is fixedly connected to the bracket, and the other end is fixedly connected to the tray; part of the first water pipe and the second water pipe are arranged in parallel on the drag chain.

[0008] The swing arm driving mechanism includes a first driving motor and a first screw lifter arranged on the slide, the first driving motor is drivingly connected to the input shaft of the first screw lifter, the screw of the first screw lifter is vertically arranged and the top end thereof is hinged to the swing arm.

[0009] The clamp includes a base plate, a lower chuck fixed on the base plate, an upper chuck arranged above the lower chuck, and a locking mechanism for clamping the upper chuck and the lower chuck. The upper chuck is provided with an upper arc opening, and the lower chuck is provided with a lower arc opening. The upper arc opening and the lower arc opening can be combined to form a furnace roller clamp.

[0010] The bottom plate is connected to the swing arm by screws, and a plurality of groups of threaded holes arranged at intervals along the length direction of the swing arm are arranged on the upper surface of the swing arm; a supporting plate is arranged on the free end of the swing arm, and a supporting arc opening is opened on the top of the supporting plate.

[0011] The frame includes a raised platform, a base frame for supporting the middle parts of two slide rails, and two side arms respectively arranged on the left and right sides of the two slide rails; a first caster is provided at the bottom of the base frame, and a second caster is provided at the bottom of the side arm, and the second caster is pressed against the raised platform; the slide rail is driven to move left and right by a longitudinal driving mechanism.

[0012] The longitudinal driving mechanism includes two second screw lifters respectively arranged on the left and right sides of the two slide rails, the screws of the two second screw lifters are horizontally arranged and connected by a coupling, their screw nuts are respectively fixed to the two slide rails, and a hand wheel is connected to the input rotating shaft of the two second screw lifters; the lifter bodies of the two second screw lifters are fixed on the raised platform through a mounting frame.

[0013] The slide drive mechanism includes a motor mounting frame arranged on one end of the two slide rails, a second drive motor arranged on the motor mounting frame, a drive screw arranged between the two slide rails, and a screw nut sleeved on the drive screw, wherein the screw nut is fixedly connected to the slide; the second drive motor is transmission-connected to the drive screw; the inner sides of the two slide rails are provided with T-shaped slide grooves along their length directions, and the left and right sides of the slide are slidingly connected to the corresponding T-shaped slide grooves through sliders respectively.

[0014] The roller storage rack is divided into an area to be polished and a new roller area; both the area to be polished and the new roller area are provided with positioning plates, and each positioning block is provided with a plurality of positioning grooves for positioning the furnace rollers.

[0015] The furnace roller debulking lathe includes a workbench, a lathe chuck arranged on the workbench, a chuck driving mechanism for driving the lathe chuck to rotate, a positioning mechanism for fixing the rotating joint on the furnace roller, and a grinding wheel grinding mechanism for grinding the outer circle of the furnace roller, and the grinding wheel grinding mechanism can move along the axial direction of the furnace roller.

[0016] Beneficial effects:

[0017] Compared with the prior art, the annealing furnace roll changing and grinding system provided by the present invention extracts the old furnace rolls from the annealing furnace for cooling through the roll changing device, and assists the staff to complete the roll changing work of the new furnace rolls; in addition, with the cooperation of the roll storage rack and the furnace roll debulking grinder, the replaced old furnace rolls are ground and refurbished on-site, and the refurbished new furnace rolls can be directly replaced with the old furnace rolls, which not only reduces the time and labor costs consumed in lifting the old furnace rolls and new furnace rolls over long distances, but also reduces the transportation costs of moving the new and old furnace rolls between the grinding and refurbishment factories. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional annealing furnace roller changing and grinding system provided by the present invention Figure 1 .

[0019] Figure 2 The three-dimensional annealing furnace roller changing and grinding system provided by the present invention Figure 2 .

[0020] Figure 3 This is a schematic structural diagram of the annealing furnace roller changing and grinding system provided by the present invention.

[0021] Figure 4 A three-dimensional diagram of a swing arm and a clamp in the annealing furnace roller changing and grinding system provided by the present invention.

[0022] Figure 5 A three-dimensional diagram of a furnace roll debulking grinder in the annealing furnace roll changing and grinding system provided by the present invention.

[0023] Main component symbol description: 1-roller changing device, 12-slide rail, 13-slide seat, 14-swing arm, 2-roller storage rack, 3-furnace roller detumor grinder, 4-slide seat drive mechanism, 5-swing arm drive mechanism, 6-clamp, 7-cooling mechanism, 71-first water pipe, 72-second water pipe, 73-tray, 74-drag chain, 75-bracket, 51-first drive motor, 52-first screw lifter, 61-bottom plate, 62-lower chuck, 63-upper chuck, 64-locking mechanism, 631-upper arc mouth, 621-lower arc mouth, 65-furnace roller clamp, 641-screw, 642-pressing head, 643-avoid Let groove, 644-handle, 66-screw, 67-threaded hole, 141-support plate, 142-support arc, 111-raised platform, 112-base frame, 113-side arm, 114-first caster, 115-second caster, 8-longitudinal drive mechanism, 81-second screw lifter, 82-handwheel, 83-mounting frame, 41-motor mounting frame, 42-second drive motor, 43-drive screw, 44-T-type slide, 21-area to be polished, 22-new roller area, 31-workbench, 32-lathe chuck, 33-chuck drive mechanism, 34-positioning mechanism, 35-grinding wheel polishing mechanism. DETAILED DESCRIPTION

[0024] The present invention provides an annealing furnace roller changing and grinding system. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0025] In this article, "front" refers to the direction of the roll changing device toward the annealing furnace, "front" and "back" are opposite; "left" refers to Figure 1 The direction indicated by the middle arrow is the direction of the roll changing device toward the furnace roll debulking grinder, and "left" and "right" are opposite.

[0026] Descriptions such as “first” and “second” in the text are used for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0027] See also Figure 1-5The present invention provides an annealing furnace roll changing and grinding system, including a roll changing device 1, a roll storage rack 2, and a furnace roll nodule removal grinder 3. The roll changing device 1 includes a frame, two slide rails 12 arranged in parallel on the frame, a slide seat 13 arranged between the two slide rails 12, a slide seat driving mechanism 4 for driving the slide seat 13 to move along the length direction of the slide rail 12, a swing arm 14 rotatably connected to the slide seat 13, a swing arm driving mechanism 5 arranged on the slide seat 13 and used to drive the swing arm 14 to swing, a clamp 6 arranged on the swing arm 14, and a cooling mechanism 7 for cooling the furnace roll; the clamp 6 is used to clamp the furnace roll; the furnace roll nodule removal grinder 3 is used to remove nodules on the furnace roll; the roll storage rack 2 is used to store multiple furnace rolls.

[0028] In practical applications, see Figure 3 As shown, when the furnace roller 90 is working in the annealing furnace 91, the furnace roller is in a high temperature state and needs to be cooled and dissipated by a water cooling system to increase the service life of the furnace roller; therefore, a rotary joint 92 is pre-set at one end of each furnace roller 91, and each rotary joint 92 is provided with a water inlet joint 93 and a water outlet joint 94, and a switch 95 is provided on the water inlet joint 93 and the water outlet joint 94, and a water flow channel is provided inside the furnace roller, and the water inlet joint 93 on the rotary joint is connected to the water inlet pipe 96 of the water cooling system, and the water outlet joint 94 of the rotary joint is connected to the water outlet pipe 97 of the water cooling system, and the cooling water flows through the water flow channel of the furnace roller to achieve heat dissipation and cooling of the furnace roller heat exchange.

[0029] After the furnace roller has been working in the annealing furnace for a period of time, the furnace roller surface is nodulated and becomes an old furnace roller, and the roller needs to be replaced in time. At this time, the switch 95 on the water inlet joint 93 and the water outlet joint 94 is first closed to block the cooling water in the water flow channel of the furnace roller, and then the water inlet switch and the water outlet switch of the water cooling system are disconnected, and then the water inlet pipe 96 and the water outlet pipe 97 of the water cooling system are disconnected from the rotary joint 92. Then, the staff controls the slide drive mechanism 4 to drive the slide 13 to move toward the furnace roller; the swing arm 14 moves to the bottom of the furnace roller 90, and then the swing arm drive mechanism 5 drives the swing arm 14 to gradually swing upward until the swing arm 14 tends to be horizontal, and the furnace roller 90 is clamped with the clamp 6. Since the furnace roller is still in a high temperature state at this time, the furnace roller 90 needs to be further cooled by the cooling mechanism 7; then the slide drive mechanism 4 drives the slide 13 to move away from the annealing furnace 91, so that the furnace roller is pulled out of the annealing furnace. While waiting for the furnace roller 90 to cool down to the preset temperature range (the cooling time is 15 minutes to half an hour), the staff then loosens the clamp 6, disconnects the cooling mechanism 7 from the old furnace roller, and hoists the old furnace roller to the roller storage rack 2 next to the roller changing device 1; finally, the new furnace roller on the roller storage rack 2 is hoisted onto the clamp 6, the clamp 6 clamps the new furnace roller, and then the slide drive mechanism 4 drives the slide 13 to move toward the annealing furnace. At the same time, the swing arm 14 is driven to swing by the swing arm drive mechanism 5 to adjust the angle of the new furnace roller entering the annealing furnace to ensure that the new furnace roller enters the annealing furnace smoothly for installation; after the new furnace roller is installed, release the clamp, the slide drive mechanism 4 drives the slide 13 to move away from the annealing furnace, and the water inlet and outlet pipes of the water cooling system are respectively connected to the rotary joints on the new furnace roller, so that the new furnace roller can dissipate heat and cool down during operation.

[0030] After completing the roll changing work, the staff can lift the old furnace roll on the roll storage rack 2 to the furnace roll nodule removal grinder 3 located next to the roll changing device 1, and grind and refurbish the outer circle of the furnace roll through the furnace roll nodule removal grinder 3 to remove the sponge iron nodules attached to the surface of the furnace roll. The old furnace roll after grinding and nodule removal becomes a new furnace roll and is lifted back to the roll storage rack 2 for caching, waiting for roll changing. It can be seen that the annealing furnace roll changing and grinding system provided by the present invention can not only assist the staff to complete the roll changing work, but also perform on-site grinding and refurbishment of the replaced old furnace rolls, which not only reduces the time and labor costs consumed by lifting the old furnace rolls and new furnace rolls over long distances, as well as the transportation costs of moving the new and old furnace rolls between the grinding and refurbishment factories.

[0031] For details, please refer to Figure 1 and Figure 2The cooling mechanism 7 includes a water cooler (not shown in the figure), a first water pipe 71 and a second water pipe 72 connected to the water cooler, a tray 73 arranged on one of the slide rails 12, a drag chain 74 arranged on the tray 73, and a bracket 75 arranged on the slide seat 13; one end of the drag chain 74 is fixedly connected to the bracket 75, and the other end is fixedly connected to the tray 73, and the tray 73 limits the travel trajectory of the drag chain 74; part of the first water pipe 71 and the second water pipe 72 are arranged in parallel on the drag chain 74. It can be understood that when the swing arm 14 on the slide 13 moves to the bottom of the old furnace roller, the first water pipe 71 can be first connected to the water inlet joint 93 on the old furnace roller, and then the second water pipe 72 can be connected to the water outlet joint 94 on the old furnace roller, and the water cooler transmits the cooling water to the water flow channel of the old furnace roller through the first water pipe 71, so that the old furnace roller can dissipate heat and cool down, and then the cooling water flows back to the water cooler through the second water pipe 72; of course, according to actual conditions, the old furnace roller can be cooled down after the clamp 6 clamps the old furnace roller. Since the drag chain 74 can restrain the first water pipe 71 and the second water pipe 72, on the one hand, the first water pipe 71 and the second water pipe 72 are arranged neatly without being entangled with each other, and parts of the first water pipe 71 and the second water pipe 72 can smoothly change the bending position following the movement of the slide 13; on the other hand, the free ends of the first water pipe 71 and the second water pipe 72 can move following the slide 13, so that during the working process of extracting the old furnace roller from the annealing furnace 91, the old furnace roller is in a cooling state, avoiding the rapid heating of the old furnace roller after being cooled down from the water cooling system, thereby better shortening the cooling time of the old furnace roller.

[0032] For further information, see Figure 1 As shown, the swing arm driving mechanism 5 includes a first driving motor 51 and a first screw lifter 52 arranged on the slide, the first driving motor 51 is connected to the input shaft of the first screw lifter 52 by transmission, the screw of the first screw lifter 52 is arranged vertically and its top end is hinged to the swing arm 14. That is, the first driving motor 51 drives the input shaft of the first screw lifter 52 to rotate, thereby driving the screw 521 of the first screw lifter 52 to rise and fall, thereby driving the swing arm 14 to swing.

[0033] It should be noted that the first screw lifter 52 is a prior art, which mainly includes a lifter body, a screw 521 and a hinged joint arranged on the top of the screw. A meshing worm wheel and worm are arranged in the lifter body. The worm is the input shaft. The worm wheel is fixedly connected to the screw and can be purchased directly from the market, such as Shandong Junfei's SWL screw lifter.

[0034] For further information, see Figure 4The clamp 6 includes a bottom plate 61, a lower clamp 62 fixed on the bottom plate 61, an upper clamp 63 arranged above the lower clamp 62, and a locking mechanism 64 for clamping the upper clamp 63 and the lower clamp 62. The upper clamp 63 is provided with an upper arc opening 631, and the lower clamp 62 is provided with a lower arc opening 621. During the actual clamping, the lower clamp 62 gradually rises with the swing of the swing arm 14, so that the lower half of the old furnace roller is stuck in the lower arc opening 621, and then the upper clamp 63 and the lower clamp are locked. The heads 62 are merged, so that the lower arc opening 621 on the lower clamp 62 and the upper arc opening 631 on the upper clamp 63 are merged to form a furnace roller clamp 65, and the old furnace roller passes through the furnace roller clamp 65; finally, the locking mechanism 64 locks the upper clamp 63 and the lower clamp 62 to each other, so that the clamp 6 clamps the old furnace rod, and under the drive of the slide drive mechanism 4, the slide 13, the swing arm 14 and the clamp 6 on the swing arm 14 move together in a direction away from the annealing furnace 91, thereby pulling the old furnace rod out of the annealing furnace.

[0035] In a preferred embodiment, see Figure 4 As shown, the upper clamp 63 can be turned over relative to the lower clamp 62, that is, the bottom of the upper clamp 63 is rotatably connected to the top of the lower clamp 62. By arranging in this way, it is easy to operate, and the position where the upper clamp 63 merges with the lower clamp 62 is accurate and will not shift.

[0036] In a preferred embodiment, see Figure 4 As shown, the locking mechanism 64 includes a screw 641 and a clamping head 642. The upper clamp 63 and the lower clamp 62 are provided with an avoidance groove 643 for the screw 641 to pass through. One end of the screw 641 is pivotally connected to the lower clamp 62, and the other end is threadedly connected to the clamping head 642. A handle 644 is provided on the clamping head 642. By rotating the handle 644, the clamping head 642 is driven to rotate until the clamping head 642 firmly presses the upper clamp 63 onto the lower clamp 62.

[0037] See Figure 4 As shown, in order to facilitate the replacement of the clamp 6 or the adjustment of the front and rear positions of the clamp 6 in the future, the base plate 61 is connected to the swing arm 14 by screws 66, and a plurality of groups of threaded holes 67 arranged at intervals along the length direction of the swing arm 14 are provided on the upper surface of the swing arm 14; after removing the screws 66, the base plate 61 is moved to a suitable position, and then the screws 66 are screwed into the corresponding threaded holes 67 to fix the base plate 61.

[0038] See Figure 4 As shown, in order to better cooperate with the clamp 6 to support the old furnace roller, a supporting plate 141 is provided on the free end of the swing arm 14, and a supporting arc opening 142 is opened on the top of the supporting plate 141. After the old furnace roller is pulled out, it is supported by the clamp 6 and the supporting plate 141 at the same time, and the supporting plate 141 bears part of the gravity of the old furnace roller.

[0039] In actual application, the bottoms of the two slide rails 12 are connected by multiple connecting plates to ensure the overall structural strength and mutual parallelism of the two slide rails 12; the frame includes a raised platform 111, a bottom frame 112 for supporting the middle of the two slide rails 12, and two side arms 113 respectively arranged on the left and right sides of the two slide rails 12; a first caster 114 is arranged at the bottom of the bottom frame 112, and a second caster 115 is arranged at the bottom of the side arm 113, and the second caster 115 is pressed against the raised platform 111; the slide rail 12 is driven to move left and right by the longitudinal driving mechanism 8. Through such an arrangement, the slide rail 12 and the components on the slide rail 12 can move left and right relative to the ground.

[0040] It should be noted that the raising platform 111 is fixed and can make up for the height deficiency of the staff. After standing on the raising platform 111, the staff can better complete the operation of the clamp 6, the water cooling system and the longitudinal drive mechanism 8. When the center of the furnace roller clamp 65 is offset to the left and right from the center of the old furnace roller, or when the new furnace roller cannot be aligned with the roller inlet of the annealing furnace when inserted into the annealing furnace, the longitudinal drive mechanism 8 can fine-tune the left and right position of the slide rail 12 to solve the furnace roller alignment problem.

[0041] Preferably, the longitudinal driving mechanism 8 includes two second screw lifters 81 respectively arranged on the left and right sides of the two slide rails 12, the screws of the two second screw lifters 81 are horizontally arranged and connected by a coupling, their screw nuts are respectively fixed to the two slide rails 12, and a handwheel 82 is connected to the input rotating shaft of the two second screw lifters 81; the lifter bodies of the two second screw lifters 81 are fixed on the raised platform 111 through a mounting frame 83.

[0042] When the handwheel 82 of one of the second screw lifters 81 is driven to rotate, the screw of the second screw lifter 81 rotates, and driven by the coupling, the screw of the other first screw lifter 52 rotates synchronously, so that the two screw nuts move in the same direction, and then the two slide rails 12 move synchronously.

[0043] In actual application, to ensure that the first caster 114 and the second caster 115 only rotate in the left and right direction, the first caster 114 is guided by a first guide rail 116 set on the ground, and the second caster 115 is guided by a second guide rail 117 set on the raised platform 111, and the first guide rail 116 and the second guide rail 117 extend in the left and right direction.

[0044] Preferably, a locking screw 118 is provided on the base frame 112 and is vertically downward. When the longitudinal position of the slide rail is determined, the locking screw is turned so that the bottom end of the locking screw is pressed against the first guide rail 116, thereby ensuring that the caster does not move by itself.

[0045] Preferably, see Figure 2 As shown, the slide drive mechanism 4 includes a motor mounting frame 41 arranged on one end of the two slide rails 12, a second drive motor 42 arranged on the motor mounting frame 41, a drive lead screw 43 arranged between the two slide rails 12, and a lead screw nut sleeved on the drive lead screw 43, wherein the lead screw nut is fixedly connected to the slide 13; one end of the drive lead screw 43 is rotationally connected to the motor mounting frame 41; the second drive motor 42 is transmission-connected to the drive lead screw 43, and the inner sides of the two slide rails 12 are provided with T-shaped slide grooves 44 along their length direction, and the left and right sides of the slide 13 are respectively slidably connected to the corresponding T-shaped slide grooves 44 through sliders (not visible in the figure). Preferably, the slider is set to a shape that matches the T-shaped slide groove 44, that is, the slider is T-shaped, to ensure that the slider will not separate from the slide rail 12 during movement.

[0046] During operation, the second drive motor 42 drives the lead screw 43 to rotate by forward and reverse driving, thereby driving the lead screw nut and the slide 13 connected to the lead screw nut to move along the direction guided by the T-shaped slide groove 44 (i.e., moving in the forward and backward directions), with smooth movement and high movement accuracy.

[0047] Preferably, see Figure 2 As shown, the storage roll rack 2 is divided into a grinding area 21 and a new roll area 22; the grinding area 21 stores the old furnace rolls removed from the fixture 6, and the new roll area 22 stores the new furnace rolls that have completed the nodule grinding process or the new furnace rolls that have not been used. The new and old furnace rolls are stored separately to avoid confusion between the staff and facilitate recycling. In order to facilitate the fixing of the furnace rods, the grinding area 21 and the new roll area 22 are both provided with positioning plates 23, and each positioning block is provided with a plurality of positioning grooves 24 for positioning the furnace rolls. The cross section of the positioning groove is V-shaped, which can position furnace rolls of different diameters.

[0048] Preferably, see Figure 1 , 2 5. The furnace roller debulking lathe comprises a workbench 31, a lathe chuck 32 arranged on the workbench 31, a chuck driving mechanism 33 for driving the lathe chuck 32 to rotate, a positioning mechanism 34 for fixing the rotary joint on the furnace roller, and a grinding wheel grinding mechanism 35 for grinding the outer circle of the furnace roller. The grinding wheel grinding mechanism 35 can move along the axial direction of the furnace roller.

[0049] During operation, the staff hoist the old furnace roller to the top of the workbench 31, then the lathe chuck 32 clamps one end of the old furnace roller, and fixes the rotary joint 92 through the positioning mechanism 34, and then the chuck driving mechanism 33 drives the lathe chuck 32 and the old furnace roller to rotate. At the same time, the grinding wheel grinding mechanism 35 grinds and removes the nodules on the outer circle of the old furnace roller, so that the old furnace roller can be restored to a better finish and become a new furnace roller. Through this arrangement, each old furnace roller can be ground on the spot after being removed, and there is no need to transport it to other factories for processing, which greatly saves production costs. In addition, the new furnace roller after grinding can be cached in the storage roll rack 2 or directly replaced by the roll changing device 1, which is also convenient for the transportation of new furnace rollers.

[0050] Preferably, see Figure 5 As shown, the positioning mechanism 34 includes a triangular groove 341 arranged on the rotary joint, a triangular head 342 that matches the triangular groove, and the triangular head is arranged at the piston rod end of a positioning cylinder 343; when positioning, the piston rod of the positioning cylinder 343 extends out, and the rotary joint is fixed by the matching engagement of the triangular head 342 and the triangular groove 341, ensuring that the rotary joint is in a stationary state when the old furnace roller rotates.

[0051] Preferably, see Figure 2 and Figure 5 The grinding wheel grinding mechanism 35 includes an electric slide 351, a slide cylinder 352 arranged on the slide of the electric slide, a grinding motor 353 arranged on the slide cylinder, and a grinding wheel 354 arranged on the output end of the grinding motor. When working, the slide cylinder 352 drives the grinding motor 353 and the grinding wheel 354 on the grinding motor to approach the furnace roller 90. At the same time, the slide on the electric slide 351 moves along the axial direction of the old furnace roller, driving the grinding wheel to grind the entire furnace roller, and the grinding process is highly efficient.

[0052] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. An annealing furnace roller changing and grinding system, characterized in that: The invention comprises a roll changing device, a roll storage rack and a furnace roll debulking grinder, wherein the roll changing device comprises a frame, two slide rails arranged in parallel on the frame, a slide seat arranged between the two slide rails, a slide seat driving mechanism for driving the slide seat to move along the length direction of the slide rails, a swing arm rotatably connected to the slide seat, a swing arm driving mechanism arranged on the slide seat and used to drive the swing arm to swing, a clamp arranged on the swing arm, and a cooling mechanism for cooling the furnace roll; the clamp is used to clamp the furnace roll; the furnace roll debulking grinder is used to remove the nodules on the furnace roll; the roll storage rack is used to store multiple furnace rolls; the cooling mechanism comprises a water cooler, a first water pipe and a second water pipe connected to the water cooler, a pallet arranged on one of the slide rails, a drag chain arranged on the pallet, and a bracket arranged on the slide seat; the drag chain One end of the chain is fixedly connected to the bracket, and the other end is fixedly connected to the pallet; part of the first water pipe and part of the second water pipe are arranged in parallel on the drag chain; the clamp includes a base plate, a lower chuck fixed on the base plate, an upper chuck arranged above the lower chuck, and a locking mechanism for clamping the upper chuck and the lower chuck, an upper arc opening is provided on the upper chuck, and a lower arc opening is provided on the lower chuck, and the upper arc opening and the lower arc opening can be combined to form a furnace roller clamp; the frame includes a raising platform, a base frame for supporting the middle part of the two slide rails, and two side arms respectively arranged on the left and right sides of the two slide rails; a first caster is provided at the bottom of the base frame, and a second caster is provided at the bottom of the side arm, and the second caster is pressed against the raising platform; the slide rail is driven to move left and right by a longitudinal driving mechanism.

2. The annealing furnace roller changing and grinding system according to claim 1, characterized in that: The swing arm driving mechanism includes a first driving motor and a first screw lifter arranged on the slide, the first driving motor is drivingly connected to the input shaft of the first screw lifter, the screw of the first screw lifter is vertically arranged and the top end thereof is hinged to the swing arm.

3. The annealing furnace roller changing and grinding system according to claim 1, characterized in that: The bottom plate is connected to the swing arm by screws, and a plurality of groups of threaded holes arranged at intervals along the length direction of the swing arm are arranged on the upper surface of the swing arm; a supporting plate is arranged on the free end of the swing arm, and a supporting arc opening is opened on the top of the supporting plate.

4. The annealing furnace roller changing and grinding system according to claim 1, characterized in that: The longitudinal driving mechanism includes two second screw lifters respectively arranged on the left and right sides of the two slide rails, the screws of the two second screw lifters are horizontally arranged and connected by a coupling, their screw nuts are respectively fixed to the two slide rails, and a hand wheel is connected to the input rotating shaft of the two second screw lifters; the lifter bodies of the two second screw lifters are fixed on the raised platform through a mounting frame.

5. The annealing furnace roller changing and grinding system according to claim 1, characterized in that: The slide drive mechanism includes a motor mounting frame arranged on one end of the two slide rails, a second drive motor arranged on the motor mounting frame, a drive screw arranged between the two slide rails, and a screw nut sleeved on the drive screw, wherein the screw nut is fixedly connected to the slide; the second drive motor is transmission-connected to the drive screw; the inner sides of the two slide rails are provided with T-shaped slide grooves along their length directions, and the left and right sides of the slide are slidingly connected to the corresponding T-shaped slide grooves through sliders respectively.

6. The annealing furnace roller changing and grinding system according to claim 1, characterized in that: The roller storage rack is divided into an area to be polished and a new roller area; both the area to be polished and the new roller area are provided with positioning plates, and each positioning block is provided with a plurality of positioning grooves for positioning the furnace rollers.

7. The annealing furnace roller changing and grinding system according to claim 1, characterized in that: The furnace roller debulking grinder includes a workbench, a lathe chuck arranged on the workbench, a chuck driving mechanism for driving the lathe chuck to rotate, a positioning mechanism for fixing the rotary joint on the furnace roller, and a grinding wheel grinding mechanism for grinding the outer circle of the furnace roller, and the grinding wheel grinding mechanism can move along the axial direction of the furnace roller.

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