Backup plate mechanism for steel belt uncoiling machine

Abstract

The invention discloses a backup plate mechanism for a steel belt uncoiler, and relates to the technical field of metal coiled material processing equipment, the backup plate mechanism comprises a material roller, a positioning assembly and a limiting assembly which are installed on the uncoiler, an electro-permanent magnet is installed on the material roller, and a wear-resisting plate is installed on one side of the electro-permanent magnet; the positioning assembly is installed on the material roller, the positioning assembly comprises three sets of sector plates installed on the outer side face of the material roller, and the three sets of sector plates are arranged on the outer side face of the material roller in a circumferential mode. Therefore, the working area of the electric permanent magnet is automatically adjusted, the effect that the inner side attracts the outer side to release the magnetic force is achieved, the effects that a strip coil does not slide and unwinding abrasion is reduced are achieved, and the problems that in the prior art, the strip coil moves in the unwinding process, then edge curling is caused, material loss is increased, and the yield is reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of metal coil processing equipment, in particular to a support plate mechanism for a steel strip uncoiler. Background Art

[0002] The uncoiler is a special equipment for leveling metal plates. It is used for leveling steel plates and uneven plates. According to the relevant configuration, it can form uncoiler, leveling, shearing production lines and other plate product production lines. It is suitable for machinery, vehicles, metal products, household appliances, steel structures, decoration and other industries.

[0003] At present, the traditional uncoiler system usually uses a mechanical baffle to control the position of the steel strip coil. This design easily causes the coil to move in the uncoiling process, which in turn causes the edge to curl, increasing material loss and reducing the yield rate. In addition, the mechanical baffle has a complex structure and a high failure rate, which affects the production efficiency and equipment stability. To this end, the present invention proposes a support plate mechanism for a steel strip uncoiler. Summary of the invention

[0004] The object of the present invention is to provide a support plate mechanism for a steel strip uncoiler to solve the problems of easy stringing of coils, large losses and reduced yield rate in the prior art, while simplifying the equipment structure and reducing the failure rate. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a support plate mechanism for a steel strip uncoiler, comprising a material roller, a positioning assembly and a limit assembly installed on the uncoiler, wherein an electropermanent magnet is installed on the material roller, a wear-resistant plate is installed on one side of the electropermanent magnet, and a brush slip ring is installed on the other side of the electropermanent magnet; the positioning assembly is installed on the material roller, and the positioning assembly comprises three groups of fan-shaped plates installed on the outer side surface of the material roller, the three groups of fan-shaped plates are arranged in a circle on the outer side surface of the material roller, and the positioning assembly supports and positions the steel strip coil by expanding the three groups of fan-shaped plates outward at the same time; the limit assembly is installed on the material roller and is arranged in coordination with the positioning assembly, and the limit assembly is used to limit the positions of the three groups of fan-shaped plates. During the uncoiling process of the strip coil, the control system demagnetizes the electropermanent magnet through the outer diameter information detected by the position sensor, so that the stripping area is not affected by the magnetic force to avoid scratching, and at the same time, the magnetic adsorption state is maintained in the non-stripping area to ensure the stability of the strip coil position.

[0005] Preferably, the positioning assembly includes connecting blocks fixedly connected to the three groups of the fan-shaped plates respectively, two groups of connecting blocks are fixedly connected to the same group of the fan-shaped plates, and a rotating rod is rotatably connected to the connecting block, and a hinge block is fixedly connected to the end of the rotating rod, and a rotating shaft rotatably connected to the material roller is fixedly connected to the hinge block, and a flat gear rotatably connected to the material roller is fixedly connected to the rotating shaft, and a rotating member for driving the flat gear to rotate is installed on the outer side of the flat gear, so as to facilitate the support and positioning of the steel strip roll.

[0006] Preferably, the rotating member includes three groups of racks slidably connected to the material roller, the ends of the three groups of racks are fixedly connected to connecting plates slidably connected to the material roller, one end of the connecting plate is fixedly connected to a sliding plate slidably connected to the material roller, and the other end of the connecting plate is fixedly connected to a tension spring fixedly connected to the material roller, and the end of the sliding plate is connected to a pulling member cooperating with the electropermanent magnet, and the pulling member is used to pull the three groups of racks to move, so as to drive the flat gear to rotate, thereby expanding the fan-shaped plate outward.

[0007] Preferably, the pulling member includes a connecting rod fixedly connected to the connecting plate, a sliding block fixedly connected to the connecting rod and slidably connected to the material roller, and the end of the connecting rod is fixedly connected to a magnet block sleeved on the outer side of the material roller, so as to facilitate pulling the three sets of racks to slide.

[0008] Preferably, the limiting assembly includes a limiting tooth plate fixed at the upper and lower ends of the connecting plate, the teeth on the limiting tooth plate are set at a right angle on one side and at an inclined side on the other side, the limiting tooth plate is meshingly connected to a limiting tooth block, the limiting tooth block is fixedly connected to a sliding rod slidably connected to the material roller, the sliding rod is connected to an elastic part installed inside the material roller, and the end of the sliding rod is fixedly connected to a first inclined block, and a pushing member for pushing the first inclined block to move is installed on one side of the first inclined block, so as to facilitate limiting the position of the fan plate.

[0009] Preferably, the elastic member includes a fixing plate fixed on the sliding rod, the fixing plate is fixedly connected to a first spring sleeved on the outer side of the sliding rod, the end of the first spring is fixedly connected to a supporting plate fixedly connected to the material roller, and the supporting plate is slidably connected to the sliding rod to facilitate the resetting of the limiting tooth block.

[0010] Preferably, the pushing member includes a fixed ring fixed to the outside of the material roller, the fixed ring is fixedly connected to two groups of fixed seats, the fixed seat is slidably connected to a sliding push rod, the outer side of the sliding push rod is installed with a buffer member, one end of the sliding push rod is fixedly connected to a second inclined block which is extruded and matched with the first inclined block, the other end of the sliding push rod is fixedly connected to a connecting column, and the outer side of the connecting column is installed with a sliding member for driving the sliding push rod to slide, so as to facilitate the movement of the first inclined block.

[0011] Preferably, the sliding member includes a connecting shaft rotatably connected to the fixed seat, a first extrusion plate fixedly connected to the connecting shaft and extruded into cooperation with the connecting column, a second extrusion plate fixedly connected to the connecting shaft and extruded into cooperation with the magnet block, the second extrusion plate is arranged at an inclination, a column is fixedly connected to the end of the second extrusion plate, and a torsion spring fixedly connected to the fixed seat is fixedly connected to the connecting shaft to facilitate driving the sliding push rod to slide.

[0012] Preferably, the buffer member includes a sleeve fixed on the fixed seat, the sleeve is sleeved on the outer side of the sliding push rod, a piston block fixedly connected to the sliding push rod is slidably connected in the sleeve, a second spring fixedly connected to the sleeve is fixedly connected to the piston block, and air holes are provided at both ends of the sleeve, so that the reset of the limit member has a certain buffer time, thereby facilitating that the three groups of racks have sufficient time to reset.

[0013] Preferably, the outer side surface of the material roller is provided with two groups of mutually engaged semicircular support plates, and a plurality of groups of through holes are opened on the semicircular support plates. One end of the two groups of semicircular support plates are rotatably connected with two groups of mutually engaged protective covers, and the protective covers are fixedly connected to the uncoiler, and the protective covers and the uncoiler are detachably connected, so that the protective covers and the semicircular support plates can be removed easily, thereby facilitating maintenance of the equipment.

[0014] The present invention has at least the following beneficial effects: 1. The present invention provides a support plate mechanism for a steel strip unwinding machine. In the process of unwinding the steel strip, the electric permanent magnet and the brush slip ring are used to enable the electric permanent magnet to have a partition control capability from the outside to the inside. Through the action of the position sensor on the wear-resistant plate, it can be dynamically adjusted according to the change of the outer diameter of the strip. In the process of unwinding the strip, the control system performs local demagnetization on the electric permanent magnet through the outer diameter information detected by the position sensor, so that the stripping area is not affected by the magnetic force to avoid scratching. At the same time, the magnetic adsorption state is maintained in the non-stripping area to ensure the stability of the strip position. Therefore, through the action of the electric permanent magnet, the wear-resistant plate and the position sensor, the wear-resistant plate can automatically judge the outer diameter of the strip according to the distance signal provided by the position sensor, thereby automatically adjusting the working area of ​​the electric permanent magnet to achieve the effect of inner adsorption and outer release of magnetic force, so as to achieve the effect of non-slipping of the strip and reduced unwinding wear, thereby solving the problem in the prior art that the strip moves in the process of unwinding, thereby causing edge curling, increasing material loss and reducing the yield rate.

[0015] 2. The present invention provides a support plate mechanism for a steel strip uncoiler, which replaces two sets of mechanical support plates in the prior art with one set of wear-resistant plates in this solution through the effects of an electropermanent magnet, a wear-resistant plate and a position sensor, thereby achieving the beneficial effects of simplifying the equipment structure, reducing the use of mechanical baffles and lowering the cost of fault maintenance.

[0016] 3. The present invention provides a support plate mechanism for a steel strip uncoiler, and the control system of the electric permanent magnet and the wear-resistant plate consists of a power control interface and an operation execution interface. The power control interface consists of an air switch and a power indicator light, which is used to control the power on and off of the entire system. When the system is powered normally, the power indicator light will light up, indicating that the system is ready. After closing the air switch, the electric permanent magnet control cabinet can be operated to control the charging and demagnetization of the electric permanent magnet; the operation execution interface integrates the charging and demagnetization knob switches and the automatic and manual selection switches. By rotating the charging and demagnetization knob switches, the operator can easily realize the magnetization or demagnetization operation of the electric permanent magnet; the automatic and manual selection switches determine the control mode of the support plate, whether it is local operation or automatic control, it can be easily switched, and through the automatic control system, it has the beneficial effects of rapid response and precise control, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the protective cover of the present invention; Figure 3 It is a schematic diagram of the structure of the material roller after the section of the present invention; Figure 4 This is a schematic diagram of the structure of the positioning component of the present invention; Figure 5 It is a schematic diagram of the connection structure between the rotating member and the pulling member of the present invention; Figure 6 It is a schematic diagram of the connection structure between the rotating member and three sets of sector plates of the present invention; Figure 7 It is a schematic diagram of the coordination structure of the limit assembly and the positioning assembly of the present invention; Figure 8 It is a schematic diagram of the local structure of the limit assembly of the present invention; Fig. 9 For the present invention Figure 8 Schematic diagram of the structure of the middle A area; Fig.10 This is a schematic diagram of the structure of the pusher of the present invention; Fig.11 For the present invention Fig.10 Schematic diagram of the structure of the middle B area; Fig.12 This is a schematic diagram of the structure of zone C in the present invention 10; Fig.13It is a schematic diagram of the magnetic force distribution structure of the electropermanent magnet of the present invention.

[0018] In the figure: 1-unwinder; 2-material roller; 3-electropermanent magnet; 4-wear-resistant plate; 5-brush slip ring; 6-positioning assembly; 7-sector plate; 8-limiting assembly; 9-protective cover; 10-semicircular support plate; 11-through hole; 12-connecting block; 13-rotating rod; 14-hinged block; 15-rotating shaft; 16-flat gear; 17-rotating member; 18-rack; 19-connecting plate; 20-sliding plate; 21-pulling member; 22-connecting rod; 23-sliding block; 24-magnet block; 25-limiting tooth plate; 26-limiting Position tooth block; 27-sliding rod; 28-first inclined block; 29-elastic member; 30-pushing member; 31-fixing plate; 32-first spring; 33-supporting plate; 34-fixing ring; 35-fixing seat; 36-sliding push rod; 37-second inclined block; 38-connecting column; 39-sliding member; 40-buffer member; 41-connecting shaft; 42-first extrusion plate; 43-second extrusion plate; 44-column; 45-torsion spring; 46-sleeve; 47-piston block; 48-second spring; 49-air vent; 50-tension spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 12 The present invention provides a technical solution: a support plate mechanism for a steel strip uncoiler, comprising a material roller 2, a positioning assembly 6 and a limit assembly 8 installed on an uncoiler 1, an electropermanent magnet 3 is installed on the material roller 2, a wear-resistant plate 4 is installed on one side of the electropermanent magnet 3, and a brush slip ring 5 is installed on the other side of the electropermanent magnet 3; the positioning assembly 6 is installed on the material roller 2, and the positioning assembly 6 includes three groups of fan-shaped plates 7 installed on the outer side of the material roller 2, and the three groups of fan-shaped plates 7 are arranged circumferentially on the outer side of the material roller 2, The positioning component 6 supports and positions the steel strip coil by simultaneously expanding outwards through the three groups of fan-shaped plates 7; the limiting component 8 is installed on the material roller 2 and is arranged in cooperation with the positioning component 6, and the limiting component 8 is used to limit the positions of the three groups of fan-shaped plates 7. During the unwinding process of the strip coil, the control system demagnetizes the electropermanent magnet 3 through the outer diameter information detected by the position sensor, so that the stripping area is not affected by the magnetic force to avoid scratches. At the same time, the magnetic adsorption state is maintained in the non-stripping area to ensure the stable position of the strip coil.

[0021] In this solution, the wear-resistant plate 4 has the ability to control the partition from the outside to the inside through the action of the electropermanent magnet 3 and the brush slip ring 5. Through the action of the position sensor on the wear-resistant plate 4, it can be dynamically adjusted according to the change of the outer diameter of the coil. During the unwinding process of the coil, the control system adjusts the magnetization area of ​​the electropermanent magnet 3 through the outer diameter information detected by the position sensor, so that the stripping area is not affected by the magnetic force to avoid scratching. At the same time, the magnetic adsorption state is maintained in the non-stripping area to ensure the stability of the coil position. In this solution, the brush slip ring 5, as a key conductive connection component when the permanent magnet 3 is charged and demagnetized, plays a vital role in the rotating equipment. It is a special conductive device that can realize the current and signal transmission between the rotating part and the stationary part, ensuring that the equipment can operate stably and reliably while rotating continuously; In this solution, the wear-resistant plate 4 is made of non-magnetic wear-resistant material, which has high wear resistance, high heat resistance, corrosion resistance and high cost performance, can effectively protect the equipment from damage, and greatly reduce the use cost. The wear-resistant plate 4 is 3mm thick and has a certain flexibility to reduce unwinding scratches; In this scheme, a positioning component 6 and a limiting component 8 are provided, and the positioning component 6 is arranged in cooperation with the electropermanent magnet 3. Therefore, after the electropermanent magnet 3 is magnetized, the positioning component 6 starts to operate so that the three groups of fan-shaped plates 7 expand outward at the same time to support and position the steel strip roll, and the positions of the three groups of fan-shaped plates 7 are limited by the action of the limiting component 8, so that during the operation of the equipment, the three groups of fan-shaped plates 7 can only expand outward and cannot shrink inward, causing the steel strip roll to relax, and the steel strip roll is adsorbed by the magnetic attraction of the electropermanent magnet 3, so that the steel strip roll is against one side of the wear-resistant plate 4.

[0022] The positioning assembly 6 includes connecting blocks 12 fixedly connected to the three groups of the sector plates 7 respectively, two groups of connecting blocks 12 are fixedly connected to the same group of the sector plates 7, and a rotating rod 13 is rotatably connected to the connecting block 12, and a hinge block 14 is fixedly connected to the end of the rotating rod 13, and a rotating shaft 15 rotatably connected to the material roller 2 is fixedly connected to the hinge block 14, and a flat gear 16 rotatably connected to the material roller 2 is fixedly connected to the rotating shaft 15, and a rotating member 17 for driving the flat gear 16 to rotate is installed on the outer side of the flat gear 16, so as to support and position the steel strip roll; the rotating member 17 includes three groups of racks 18 slidably connected to the material roller 2, and the ends of the three groups of racks 18 are fixedly connected to the material roller 2. A connecting plate 19, one end of which is fixedly connected to a sliding plate 20 slidably connected to the material roller 2, and the other end of the connecting plate 19 is fixedly connected to a tension spring 50 fixedly connected to the material roller 2, and the end of the sliding plate 20 is connected to a pulling member 21 that cooperates with the electropermanent magnet 3, and the pulling member 21 is used to pull the three groups of racks 18 to move, so as to drive the flat gear 16 to rotate, so that the fan-shaped plate 7 is expanded outward; the pulling member 21 includes a connecting rod 22 fixedly connected to the connecting plate 19, a sliding block 23 slidably connected to the material roller 2 is fixedly connected to the connecting rod 22, and the end of the connecting rod 22 is fixedly connected to a magnet block 24 sleeved on the outer side of the material roller 2, so as to pull the three groups of racks 18 to slide.

[0023] In this solution, after the electropermanent magnet 3 is magnetized, the action of the electropermanent magnet 3 causes the magnet block 24 to move backward, and the backward movement of the magnet block 24 causes the connecting rod 22 to drive the sliding block 23 to slide, and the sliding action of the connecting rod 22 causes the sliding plate 20 to slide, and the action of the sliding plate 20 causes the connecting plate 19 to drive the three sets of racks 18 to slide, and after the three sets of racks 18 slide, they will drive the flat gear 16 to rotate, and the rotation of the flat gear 16 will drive the rotating shaft 15 and the hinge block 14 to rotate, and the rotation of the hinge block 14 will cause the rotating rod 13 to rotate, and then the rotation of the rotating rod 13 causes the three sets of fan-shaped plates 7 fixedly connected to the connecting block 12 to expand outward at the same time, and the steel strip coil is supported and positioned by the expansion of the three sets of fan-shaped plates 7.

[0024] The limiting assembly 8 includes a limiting tooth plate 25 fixed to the upper and lower ends of the connecting plate 19, one side of the teeth on the limiting tooth plate 25 is set at a right angle and the other side is set at an angle, the limiting tooth plate 25 is meshed and connected with a limiting tooth block 26, the limiting tooth block 26 is fixedly connected with a sliding rod 27 slidably connected to the material roller 2, the sliding rod 27 is connected with an elastic member 29 installed inside the material roller 2, and the end of the sliding rod 27 is fixedly connected with a first inclined block 28, one side of the first inclined block 28 is installed with a pushing member 30 for pushing the first inclined block 28 to move, so as to limit the position of the fan-shaped plate 7; the elastic member 29 includes a fixing plate 31 fixed to the sliding rod 27, and the fixing plate 31 is fixedly connected with a A first spring 32, the end of which is fixedly connected to a support sheet 33 fixedly connected to the material roller 2, and the support sheet 33 is slidably connected to the sliding rod 27, so as to facilitate the resetting of the limit tooth block 26; the pushing member 30 includes a fixing ring 34 fixed to the outside of the material roller 2, and two groups of fixing seats 35 are fixedly connected to the fixing ring 34, and a sliding push rod 36 is slidably connected to the fixing seat 35, and a buffer member 40 is installed on the outer side of the sliding push rod 36, and one end of the sliding push rod 36 is fixedly connected to a second inclined block 37 which is extruded and matched with the first inclined block 28, and the other end of the sliding push rod 36 is fixedly connected to a connecting column 38, and a sliding member 39 for driving the sliding push rod 36 to slide is installed on the outer side of the connecting column 38, so as to facilitate the movement of the first inclined block 28.

[0025] In this solution, since one side of the teeth on the limiting tooth plate 25 is set as a straight side and the other side is set as a bevel side, the sliding plate 20 can only drive the limiting tooth plate 25 to move backward, and cannot move forward after moving backward, so the limiting tooth plate 25 and the sliding plate 20 are limited by the action of the limiting tooth plate 25 and the limiting tooth block 26, and the limiting of the three sets of sector plates 7 can be completed by limiting the sliding plate 20; In this solution, after all the steel strip coils are unwound, the electro-permanent magnet 3 continues to be magnetized. At this time, the fan-shaped plate 7 is not restricted by the steel strip coil, so that the backward movement of the magnet block 24 is not restricted. In this state, the magnetism of the electro-permanent magnet 3 will push the magnet block 24 to move backward to the end position. In this process, the sliding push rod 36 is moved by the action of the sliding member 39, and the second inclined block 37 is moved by the action of the sliding push rod 36. The first inclined block 28 is moved upward by the squeezing action of the second inclined block 37 on the first inclined block 28, and the upward movement of the first inclined block 28 causes the sliding rod 2 7 drives the limiting tooth block 26 to move away from the limiting tooth plate 25, and then controls the electropermanent magnet 3 to demagnetize. At this time, the magnet block 24 loses the reaction force of the electropermanent magnet 3, and the connecting plate 19 pulls the sliding plate 20 and the magnet block 24 to reset through the action of the tension spring 50. During the reset of the connecting plate 19, the three groups of racks 18 drive the flat gear 16 to reset, and then the three groups of fan-shaped plates 7 are reset. In this process, the buffer 40 makes the first inclined block 28 reset slowly, so the sliding plate 20, the connecting plate 19 and the magnet block 24 have enough time to reset.

[0026] In this solution, through the setting of the first spring 32, after the second inclined block 37 is reset, the sliding rod 27 drives the limiting tooth block 26 to reset through the action of the first spring 32, which is convenient for limiting the limiting tooth plate 25 next time, thereby limiting the fan plate 7.

[0027] The sliding member 39 includes a connecting shaft 41 rotatably connected to the fixed seat 35, a first extrusion plate 42 fixedly connected to the connecting shaft 41 for extrusion-matching with the connecting column 38, a second extrusion plate 43 fixedly connected to the connecting shaft 41 for extrusion-matching with the magnet block 24, the second extrusion plate 43 is inclined, a column 44 is fixedly connected to the end of the second extrusion plate 43, a torsion spring 45 fixedly connected to the fixed seat 35 is fixedly connected to the connecting shaft 41, so as to drive the sliding push rod 36 to slide; the buffer member 40 includes a sleeve 46 fixed to the fixed seat 35, the sleeve 46 is sleeved on the outer side of the sliding push rod 36, a piston block 47 fixedly connected to the sliding push rod 36 is slidably connected in the sleeve 46, a second spring 48 fixedly connected to the sleeve 46 is fixedly connected to the piston block 47, and air holes 49 are provided at both ends of the sleeve 46, so that the reset of the limit member has a certain buffer time, so as to facilitate the reset of the three groups of racks 18 with sufficient time.

[0028] In this solution, during the movement of the magnet block 24, the second extrusion plate 43 will be extruded so that the second extrusion plate 43 drives the connecting shaft 41 to rotate, and the first extrusion plate 42 extrudes the connecting column 38 and the sliding push rod 36 through the rotation of the connecting shaft 41, so that the sliding push rod 36 drives the second inclined block 37 to move, and the first inclined block 28 is extruded by the movement of the second inclined block 37 so that the first inclined block 28 rises; In this solution, during the resetting process of the magnet block 24, the second extrusion plate 43 loses the extrusion force, so the connecting shaft 41 drives the first extrusion plate 42 and the second extrusion plate 43 to reset through the action of the torsion spring 45. After the first extrusion plate 42 is reset, the sliding push rod 36 loses the extrusion force, so the piston block 47 drives the sliding push rod 36 to reset through the action of the second spring 48. Since the piston block 47 has a certain resistance when sliding inside the sleeve 46, the source of the resistance is mainly sliding friction and air pressure resistance. Therefore, the reset of the sliding push rod 36 has a certain buffering effect and is not immediate. The tension spring 50 pulls the connecting plate 19 and the sliding plate 20 to reset instantaneously, thereby ensuring that the sliding plate 20 and the connecting plate 19 can drive the magnet block 24 to reset.

[0029] In this solution, the outer side surface of the material roller 2 is sleeved with two groups of mutually engaged semicircular support plates 10, and a plurality of groups of through holes 11 are opened on the semicircular support plates 10. One end of the two groups of semicircular support plates 10 is rotatably connected with two groups of mutually engaged protective covers 9, and the protective covers 9 are fixedly connected to the uncoiler 1, and the protective covers 9 and the uncoiler 1 are detachably connected, so that the protective covers 9 and the semicircular support plates 10 can be easily removed, thereby facilitating maintenance of the equipment.

[0030] Working principle: During the operation of the steel strip coil, the steel strip coil is placed on the outside of the three groups of fan-shaped plates 7. At this time, the control system controls the electropermanent magnet 3 to be magnetized. After the electropermanent magnet 3 is magnetized, the action of the electropermanent magnet 3 causes the magnet block 24 to move backward, and the backward movement of the magnet block 24 causes the connecting rod 22 to drive the sliding block 23 to slide, and the sliding action of the connecting rod 22 causes the sliding plate 20 to slide, and the action of the sliding plate 20 causes the connecting plate 19 to drive the three groups of racks 18 to slide. After the three groups of racks 18 slide, the flat gear 16 will be driven to rotate, and the rotation of the flat gear 16 will drive the rotating shaft 15 and the hinge block 14 to rotate, and the rotation of the hinge block 14 causes the rotating rod 13 to rotate, and then the rotation of the rotating rod 13 causes the connecting block 12 to be fixed. The three connected groups of sector plates 7 expand outward at the same time, and the steel strip coil is supported and positioned by the expansion of the three groups of sector plates 7. Since one side of the teeth on the limiting tooth plate 25 is set as a straight side and the other side is set as a bevel side, the sliding plate 20 can only drive the limiting tooth plate 25 to move backward, and cannot move forward after moving backward, so the limiting tooth plate 25 and the limiting tooth block 26 are used to limit the limiting tooth plate 25 and the sliding plate 20. The three groups of sector plates 7 can be limited by limiting the sliding plate 20 to ensure the support and positioning ability of the sector plate 7 for the steel strip coil. After the steel strip coil is completely unwound, the electropermanent magnet 3 continues to be magnetized. At this time, the sector plate 7 is not restricted by the steel strip coil, so that the backward movement of the magnet block 24 is not restricted. In this state, the magnetism of the electropermanent magnet 3 will push the magnetic The iron block 24 moves back to the end position. During the movement of the magnet block 24, the second extrusion plate 43 will be squeezed, so that the second extrusion plate 43 drives the connecting shaft 41 to rotate. The first extrusion plate 42 squeezes the connecting column 38 and the sliding push rod 36 through the rotation of the connecting shaft 41, so that the sliding push rod 36 drives the second inclined block 37 to move. The first inclined block 28 is squeezed by the movement of the second inclined block 37, so that the first inclined block 28 rises. The upward movement of the first inclined block 28 drives the sliding rod 27 to move the limiting tooth block 26 away from the limiting tooth plate 25, and then the electro-permanent magnet 3 is controlled to be demagnetized. At this time, the magnet block 24 loses the reaction force of the electro-permanent magnet 3, and the connecting plate 19 pulls the sliding plate 20 and the magnet block 24 to reset through the action of the tension spring 50. In the process of resetting the connecting plate 19, the three sets of racks 18 drive the flat gear 16 to reset, and then the three sets of sector plates 7 are reset. In this process, the second extrusion plate 43 loses the extrusion force, so the connecting shaft 41 drives the first extrusion plate 42 and the second extrusion plate 43 to reset through the action of the torsion spring 45. After the first extrusion plate 42 is reset, the sliding push rod 36 loses the extrusion force, so the piston block 47 drives the sliding push rod 36 to reset through the action of the second spring 48. Since the piston block 47 has a certain resistance when sliding inside the sleeve 46, the source of the resistance is mainly sliding friction and air pressure resistance. Therefore, the reset of the sliding push rod 36 has a certain buffering property and is not reset immediately. The tension spring 50 pulls the connecting plate 19 and the sliding plate 20 to reset instantaneously.This ensures that the sliding plate 20 and the connecting plate 19 can drive the magnet block 24 to reset.

[0031] It is particularly noted that the driving force for the movement of the three groups of fan-shaped plates 7 in the present solution comes from the magnetization of the electropermanent magnet 3, which causes the magnet block 24 to move. During operation, the electropermanent magnet 3 is always in a state of magnetization, that is, the magnet block 24 always has a magnetic squeezing force away from the electropermanent magnet 3, so that the fan-shaped plates 7 can always be in a state of applying squeezing pressure to the steel strip coil, thereby making the steel strip coil more stable and avoiding the loosening of the steel strip coil during operation.

[0032] It is worth noting that the wear-resistant plate and the electro-permanent magnet in this scheme work as follows: 1. Start the uncoiler system, and the position sensor begins to detect the outer diameter information of the coil; 2. The control system receives the position sensor data and performs partition control on the electro-permanent magnet; 3. In the stripping area, the control system issues a demagnetization command to make the permanent magnet lose its magnetic force in this area; 4. In the unpeeled area, the permanent magnet maintains the magnetic adsorption state to control the position of the tape roll; 5. The uncoiling device performs uncoiling operations until the coil processing is completed.

[0033] In this solution, in automatic control, the electropermanent magnet can choose two ways to realize the charging and demagnetization operation: One is to directly set the interval time of charging and demagnetization to oscillate the charging and demagnetization to avoid the coil from falling off; Secondly, multiple sensors (such as distance detection sensors, Hall sensors, proximity sensors, temperature sensors, photoelectric switches or other sensor forms) are configured on the adsorption surface of the electro-permanent magnet to detect the distance between the strip and the wear-resistant plate in real time. Only when the steel strip is separated and reaches the set distance, the electro-permanent magnet will realize the charging and demagnetization operation, which can save electricity and increase the service life.

[0034] In this solution, the peripheral detection function can be implemented in two ways: First, find a fixed position on the periphery of the permanent magnet, that is, on the equipment, to detect the distance to the outer diameter of the steel strip coil. The distance detection methods include distance sensors, gratings, temperature sensors, etc., so that the outer diameter of the strip coil can be calculated by the actual detection distance; The second is to directly use multiple sensors configured on the electro-permanent magnet adsorption surface and use their data to analyze the remaining outer diameter of the steel strip coil, and based on this, provide the control center with analysis to realize peripheral detection.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A support plate mechanism for a steel strip unwinding machine, comprising: A material roller (2) mounted on the uncoiler, an electro-permanent magnet (3) mounted on the material roller (2), a wear-resistant plate (4) mounted on one side of the electro-permanent magnet (3), a position sensor mounted on the wear-resistant plate (4), and a brush slip ring (5) mounted on the other side of the electro-permanent magnet (3); It is characterized by further comprising: A positioning assembly (6), the positioning assembly (6) being mounted on the material roller (2), and the positioning assembly (6) comprising three groups of fan-shaped plates (7) mounted on the outer side surface of the material roller (2), the three groups of fan-shaped plates (7) being arranged in a circular pattern on the outer side surface of the material roller (2), and the positioning assembly (6) supports and positions the steel strip coil by simultaneously expanding the three groups of fan-shaped plates (7) outwards; A limiting assembly (8), the limiting assembly (8) is mounted on the material roller (2) and is arranged in cooperation with the positioning assembly (6), the limiting assembly (8) being used to limit the positions of the three groups of sector plates (7).

2. The support plate mechanism for a steel strip uncoiler according to claim 1, characterized in that: The positioning assembly (6) comprises connecting blocks (12) respectively fixedly connected to the three groups of the sector plates (7); two groups of connecting blocks (12) are fixedly connected to the same group of the sector plates (7); a rotating rod (13) is rotatably connected to the connecting block (12); an end of the rotating rod (13) is fixedly connected to a hinge block (14); a rotating shaft (15) rotatably connected to the material roller (2) is fixedly connected to the hinge block (14); a spur gear (16) rotatably connected to the material roller (2) is fixedly connected to the rotating shaft (15); a rotating member (17) for driving the spur gear (16) to rotate is installed on the outer side of the spur gear (16).

3. The support plate mechanism for a steel strip uncoiler according to claim 2, characterized in that: The rotating member (17) comprises three groups of racks (18) slidably connected to the material roller (2); the ends of the three groups of racks (18) are fixedly connected to connecting plates (19) slidably connected to the material roller (2); one end of the connecting plate (19) is fixedly connected to a sliding plate (20) slidably connected to the material roller (2); and the other end of the connecting plate (19) is fixedly connected to a tension spring (50) fixedly connected to the material roller (2); and the end of the sliding plate (20) is connected to a pulling member (21) matched with the electropermanent magnet (3); and the pulling member (21) is used to pull the three groups of racks (18) to move.

4. The support plate mechanism for a steel strip uncoiler according to claim 3, characterized in that: The pulling member (21) comprises a connecting rod (22) fixedly connected to the connecting plate (19), a sliding block (23) slidably connected to the material roller (2) fixedly connected to the connecting rod (22), and a magnet block (24) sleeved on the outer side of the material roller (2) fixedly connected to the end of the connecting rod (22).

5. The support plate mechanism for a steel strip uncoiler according to claim 4, characterized in that: The limiting assembly (8) comprises a limiting tooth plate (25) fixed to the upper and lower ends of the connecting plate (19); one side of the teeth on the limiting tooth plate (25) is arranged at a right angle and the other side is arranged at an angle; the limiting tooth plate (25) is meshingly connected to a limiting tooth block (26); the limiting tooth block (26) is fixedly connected to a sliding rod (27) slidably connected to the material roller (2); the sliding rod (27) is connected to an elastic member (29) installed inside the material roller (2); and the end of the sliding rod (27) is fixedly connected to a first inclined block (28); and a pushing member (30) for pushing the first inclined block (28) to move is installed on one side of the first inclined block (28).

6. The support plate mechanism for a steel strip uncoiler according to claim 5, characterized in that: The elastic member (29) comprises a fixing plate (31) fixed on the sliding rod (27), the fixing plate (31) being fixedly connected to a first spring (32) sleeved on the outer side surface of the sliding rod (27), the end of the first spring (32) being fixedly connected to a supporting plate (33) fixedly connected to the material roller (2), and the supporting plate (33) being slidably connected to the sliding rod (27).

7. The support plate mechanism for a steel strip uncoiler according to claim 6, characterized in that: The pushing member (30) comprises a fixing ring (34) fixed to the outside of the material roller (2), two groups of fixing seats (35) are fixedly connected to the fixing ring (34), a sliding push rod (36) is slidably connected to the fixing seat (35), a buffer member (40) is installed on the outer side surface of the sliding push rod (36), one end of the sliding push rod (36) is fixedly connected to a second inclined block (37) which is extruded and matched with the first inclined block (28), the other end of the sliding push rod (36) is fixedly connected to a connecting column (38), and a sliding member (39) for driving the sliding push rod (36) to slide is installed on the outer side surface of the connecting column (38).

8. The support plate mechanism for a steel strip uncoiler according to claim 7, characterized in that: The sliding member (39) comprises a connecting shaft (41) rotatably connected to the fixing seat (35); a first extrusion plate (42) is fixedly connected to the connecting shaft (41) and is extruded and matched with the connecting column (38); a second extrusion plate (43) is also fixedly connected to the connecting shaft (41) and is extruded and matched with the magnet block (24); the second extrusion plate (43) is arranged in an inclined manner; a column (44) is fixedly connected to the end of the second extrusion plate (43); and a torsion spring (45) is fixedly connected to the fixing seat (35).

9. The support plate mechanism for a steel strip uncoiler according to claim 8, characterized in that: The buffer member (40) comprises a sleeve (46) fixed on the fixing seat (35), the sleeve (46) being sleeved on the outer side of the sliding push rod (36), a piston block (47) fixedly connected to the sliding push rod (36) being slidably connected inside the sleeve (46), a second spring (48) fixedly connected to the sleeve (46) being fixedly connected to the piston block (47), and air holes (49) being provided at both ends of the sleeve (46).

10. The support plate mechanism for a steel strip uncoiler according to claim 9, characterized in that: The outer side surface of the material roller (2) is sleeved with two groups of mutually engaging semicircular support plates (10), and the semicircular support plates (10) are provided with a plurality of groups of through holes (11). One end of the two groups of semicircular support plates (10) is rotatably connected to two groups of mutually engaging protective covers (9), and the protective covers (9) are fixedly connected to the uncoiler, and the protective covers (9) and the uncoiler are detachably connected.

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