A squirrel cage flipping mechanism

Abstract

The application provides a squirrel-cage type turnover mechanism and belongs to the technical field of turnover equipment. The squirrel-cage type turnover mechanism solves the problems of the existing pressing mechanism, such as inconsistent stroke of upper and lower clamping members caused by single-side bearing and low utilization rate of the pressing mechanism. The squirrel-cage type turnover mechanism comprises a base frame and a squirrel-cage frame, further comprises a linkage clamping mechanism, and the linkage clamping mechanism comprises an upper clamping member, a lower clamping member, an upper air cylinder with a rod head downward, a lower air cylinder with a rod head upward and a linkage gear set. Through the action of the linkage gear set, the upper and lower clamping members, the upper and lower air cylinders and the linkage gear set itself are combined to form a linkage whole, the upper and lower clamping members move synchronously and have the same stroke, the accuracy of the material clamping position is improved, and the utilization rate of the air cylinder is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of turnover equipment, and particularly relates to a squirrel-cage type turnover mechanism. BACKGROUND

[0002] A turnover machine is an automatic equipment capable of overturning materials at a certain angle, which can provide safe, stable and efficient process conveying and is widely used in metallurgical, stamping, sheet metal and mold industrial production. The squirrel-cage type turnover machine is a common turnover mechanism, which generally comprises a circular squirrel-cage frame and a clamping mechanism installed in the squirrel-cage frame. After the clamping mechanism clamps the materials, the circular squirrel-cage frame rotates under the drive of a driving device and overturns the materials.

[0003] The Chinese utility model patent with the publication number "CN213622163U" discloses a 180-degree squirrel-cage type turnover machine, which comprises a squirrel-cage frame. The upper and lower sides of the squirrel-cage frame are each provided with a fixed frame. A pair of left and right distributed belt conveyors are arranged on the fixed frame for conveying materials. A clamping mechanism is arranged between the two belt conveyors. The clamping mechanism comprises a positioning frame composed of transversely and longitudinally staggered fixed rods. A plurality of clamping plates are arranged on the side of the positioning frame facing the goods. A push cylinder is arranged on the side of the fixed frame away from the goods to drive the positioning frame to move up and down. A plurality of suction cups are arranged on the fixed rods and face the goods. The push cylinder pushes the clamping plates to clamp the materials and further fixes the materials by the suction cups. Limiting blocks protruding from the surfaces of the clamping plates are arranged at the two ends of the clamping plates to limit the materials.

[0004] The above-mentioned 180-degree squirrel-cage type turnover machine transmits materials through the belt conveyors fixed on the left and right sides. Therefore, the size of the materials must strictly conform to the distance between the two belt conveyors, which has poor universality for different sizes of materials. In addition, the stability of the belt is poor when transporting heavy materials. Furthermore, the effect of the method of fixing the materials by the suction cups and the limiting blocks at the two ends of the clamping plates is poor and has a narrow application range. When the surface of the materials is not flat, the suction cups will obviously lose their effect. The limiting blocks arranged at the two ends of the clamping plates require that the size of the materials strictly adapts to the length of the clamping plates, otherwise the effect of the limiting and fixing will be almost zero. The overall structure needs to be improved.

[0005] The Chinese invention patent with the publication number "CN107352259A" discloses a squirrel cage type turnover machine, power roller combinations are arranged on the upper and lower sides of the squirrel cage frame, and the materials are conveyed through the power roller combinations; the upper and lower sides of the squirrel cage frame are also provided with a pressing mechanism, the pressing mechanism includes a push cylinder, a push plate arranged at the head of the push cylinder, a push guide column and a push linear bearing, the push cylinder pushes the push plate to press the materials from the upper and lower sides; the left and right sides of the squirrel cage frame are respectively provided with a clamping piece, the clamping piece includes a sliding sleeve guide column arranged on the left and right sides of the squirrel cage frame and fixed on the cross beam, a fixed cross beam for connecting a plurality of sliding sleeves, a clamping cylinder arranged on the fixed cross beam, a clamping guide column, a clamping linear bearing and a clamping push plate fixed at the head of the clamping cylinder, the clamping cylinder pushes the clamping push plate to fix the materials from the left and right sides, and prevent the materials from falling and rolling during the turnover process.

[0006] The above-mentioned squirrel cage type turnover machine only pushes the pressing mechanism arranged on the upper and lower sides of the squirrel cage frame through the push cylinder, and the lower side of the pressing mechanism bears the weight during the lifting process, so that when the materials to be pressed are heavy, the strokes of the cylinders on the upper and lower sides are inconsistent, thereby affecting the pressing effect; moreover, the position of the clamping piece of the scheme is relatively fixed, when the strokes of the pressing mechanisms on the upper and lower sides are inconsistent, the final stopping position of the materials deviates from the pre-set position of the clamping pieces on the left and right sides, and the materials may be inclined or even tilted, which seriously affects the clamping effect, or the optimal position of the clamping piece needs to be adjusted before each use, the operation is very cumbersome and complex, and only the lower side of the pressing mechanism works during the lifting of the materials, the upper side of the pressing mechanism is not fully utilized, and the utilization rate is low. SUMMARY

[0007] In view of the problems of the prior art, the purpose of the present application is to solve the problems of inconsistent strokes of the upper and lower clamping pieces caused by single-sided bearing of the pressing mechanism of the prior art, low utilization rate of the pressing mechanism, and to provide a squirrel cage type turnover mechanism with optimized structure, accurate stroke and high utilization rate.

[0008] The purpose of the present application can be achieved by the following technical solutions:

[0009] The squirrel-cage type turnover mechanism comprises a base frame and a squirrel-cage frame, a pair of roller supports is arranged on the front and rear sides of the base frame, rollers for supporting the squirrel-cage frame are arranged on the roller supports, and a squirrel-cage driving motor for driving the squirrel-cage frame to rotate is arranged on the base frame; the squirrel-cage frame comprises two concentric circular frames arranged front and back and a plurality of horizontal beams arranged horizontally for connecting the two circular frames, power roller tracks are arranged on the upper and lower sides of the squirrel-cage frame, and roller track motors for driving the power roller tracks to operate are arranged on the power roller tracks, roller cylinders are arranged in the power roller tracks at intervals, and the squirrel-cage frame further comprises a linkage clamping mechanism; the linkage clamping mechanism comprises upper clamping members, lower clamping members, an upper air cylinder with a downward rod head, a lower air cylinder with an upward rod head, and a linkage gear set; the upper end of the upper air cylinder is fixedly connected with the horizontal beam, the lower end is fixedly connected with the linkage gear set, and the rod head extends to be connected with the lower clamping member; the lower end of the lower air cylinder is fixedly connected with the horizontal beam, the upper end is fixedly connected with the linkage gear set, and the rod head extends to be connected with the upper clamping member; the linkage gear set comprises a horizontal linkage beam, the two ends of the linkage beam are fixedly connected with the two circular frames, a linkage gear frame is fixedly connected to the middle of the linkage beam, a linkage gear is arranged on the linkage gear frame, the left and right sides of the linkage gear are respectively in meshing transmission connection with vertically arranged upper and lower racks, the upper end of the upper rack is fixedly connected with the upper clamping member, and the lower end of the lower rack is fixedly connected with the lower clamping member.

[0010] In the initial state, the rod heads of the upper and lower air cylinders extend, and the upper and lower clamping members are located at high and low points respectively; when the material to be turned over is conveyed to a suitable position by the power roller track and stopped, the linkage clamping mechanism is started, the rod heads of the upper and lower air cylinders are retracted and pull the upper and lower clamping members to move closer to the middle, the rod head of the upper air cylinder pulls the lower clamping member to support the material to be lifted upward, at this time only the lower clamping member bears the weight, and only the upper air cylinder works in the process of lifting the material, and the lower air cylinder only pulls the upper clamping member back; in this case, on the one hand, the travel of the upper and lower clamping members is inconsistent, and on the other hand, the lower air cylinder is not fully utilized. Therefore, the linkage gear set is arranged between the upper and lower clamping members to keep the travel of the upper and lower clamping members consistent, so that the material can finally stay in the middle position of the squirrel-cage frame, and the utilization rate of the upper and lower air cylinders can be improved.

[0011] The linkage beam of the linkage gear set is parallel to the axis of the squirrel cage frame and is arranged on one side of the axis, and the linkage gear set does not interfere with the conveying of the material. Under the action of the linkage gear set, the upper and lower clamping members, the upper and lower air cylinders and the linkage gear set itself form a linkage as a whole, that is, a linkage clamping mechanism. When the upper and lower air cylinders retract and pull the upper and lower clamping members, the lower clamping member first contacts the material under the pulling of the upper air cylinder, and the upper and lower air cylinders continue to retract. The upper air cylinder pulls the lower clamping member to lift the material. At this time, under the action of the linkage gear set, the force is transmitted to the upper clamping member through the lower rack, the linkage gear and the upper rack and is pulled by the lower air cylinder. It can be seen that the lower air cylinder also works to lift the material at the same time. Therefore, the movements of the upper and lower clamping members are synchronous, and the strokes are the same, which ensures that the material is accurately clamped on the center of the squirrel cage frame. At the same time, the upper and lower air cylinders are fully utilized during the lifting of the material, and the utilization rate of the air cylinders is improved.

[0012] In the above-mentioned squirrel cage type turnover mechanism, the same side of the upper and lower clamping members is provided with an anti-toppling assembly. The anti-toppling assembly includes a horizontally arranged anti-toppling air cylinder fixedly connected with the upper and lower clamping members and a guide assembly. The rod head of the anti-toppling air cylinder faces the inside of the squirrel cage frame and is fixedly connected with a guard plate. The guard plate is parallel to the axis of the squirrel cage frame. The guide assembly includes an anti-toppling guide column and an anti-toppling guide rail matched with the anti-toppling guide column. One end of the anti-toppling guide column facing the inside of the squirrel cage frame is fixedly connected with the guard plate.

[0013] When the material is lifted and fixed on the center of the squirrel cage frame under the action of the linkage clamping mechanism, the anti-toppling assembly on one side is started. The anti-toppling air cylinder pushes the guard plate forward, and under the support and guidance of the guide assembly, the guard plate abuts against the material, and then the squirrel cage frame starts to turn over. In this scheme, the anti-toppling assembly moves synchronously with the upper and lower clamping members, and the relative position of the anti-toppling assembly to the upper and lower clamping members does not change. Therefore, regardless of the changes in the shape and size of the material and whether the stopping height of the material meets the expectation, the anti-toppling assembly can better adapt to the clamping of the upper and lower clamping members and provide more stable and more accurate support effect. In addition, unlike the prior art, the anti-toppling assembly is arranged on one side in this scheme. During the process of turning over the material 180° along the direction of the guard plate side and the direction of the side without the guard plate, the anti-toppling assembly and the upper and lower clamping members provide support and limiting effects. The anti-toppling is realized by the gravity of the material itself, rather than being clamped by the clamping mechanism in four directions as in the prior art. This can effectively reduce the damage to the contact surface of the material during the clamping process of the clamping mechanism.

[0014] In the above-described squirrel-cage type turnover mechanism, the linkage gear frame comprises two limit posts arranged horizontally and vertically to the linkage beam, one end of the two limit posts is fixed to the linkage beam, and the other end is connected to a gear mounting plate in an integrated manner, the middle part of the gear mounting plate is provided with a gear shaft penetrating through the gear mounting plate, one end of the gear shaft towards the linkage beam is connected to the linkage gear through a bearing, the linkage gear and the upper and lower racks are located between the two gear limit posts, and the two limit posts are each provided with a support bearing with an outer periphery abutting the upper and lower racks.

[0015] The linkage gear frame is used to install and fix the linkage gear, the limit posts are located on the left and right sides of the upper and lower racks for limiting, so as to avoid loosening of the meshing of the upper and lower racks and the linkage gear during operation, and in order to reduce the friction between the limit posts and the racks and reduce the transmission efficiency, bearings are arranged on the limit posts, and the outer periphery of the bearings abuts the racks.

[0016] In the above-described squirrel-cage type turnover mechanism, the upper clamping member comprises an upper clamping mounting plate arranged vertically, the anti-toppling cylinder and the guide assembly are fixed to the side of the upper clamping mounting plate facing out of the squirrel-cage frame, and the guide column and the rod head of the anti-toppling cylinder penetrate through the upper clamping mounting plate; the lower clamping member comprises a lower clamping mounting plate arranged vertically, the anti-toppling cylinder and the guide assembly are fixed to the side of the lower clamping mounting plate facing out of the squirrel-cage frame, and the guide column and the rod head of the anti-toppling cylinder penetrate through the lower clamping mounting plate; the left and right sides of the upper and lower clamping mounting plates are each fixed with a clamping sliding block, and a clamping sliding rail adapted to the clamping sliding block is arranged vertically in the circular frame; the upper and lower clamping mounting plates can slide up and down along the clamping sliding rail.

[0017] The anti-toppling cylinder, the guide assembly, the sliding block and other components are fixed on the same side by the upper and lower clamping mounting plates, so as to form an integral whole, the integral whole is guided to slide synchronously by the sliding rail, the length of the connecting part of the rack and the upper and lower clamping mounting plates is increased, and the connecting strength of the rack is increased. Only the rod head of the anti-toppling cylinder and the guide column of the guide assembly penetrate through the upper and lower clamping mounting plates, the clamping area in the squirrel-cage frame is reduced for other parts of the anti-toppling cylinder and the guide assembly, the possibility of mutual interference between components is reduced, and the overall structure layout is optimized.

[0018] In the above-described squirrel-cage type turnover mechanism, the side of the upper and lower clamping mounting plates facing into the squirrel-cage frame is provided with a plurality of clamping arms arranged at intervals, one end of the clamping arm is fixed to the upper and lower clamping mounting plates, and the other end is provided with a protruding limit clamping block; a clamping arm accommodating cavity adapted to the clamping arm is arranged on the power roller, the width of the clamping arm is less than the distance between adjacent rollers, the clamping arm can be accommodated in the clamping arm accommodating cavity, and the bottom / top of the clamping arms of the upper and lower parts is higher / lower than the contact level of the rollers and the materials.

[0019] In the process of turning over, the upper and lower clamping arms are responsible for limiting and supporting the material, and the limiting clamping blocks at the end of the clamping arms can further prevent the material from slipping and toppling. In the initial state or when the turning over is completed, the upper and lower clamping arms can be accommodated between the adjacent two rollers, and the upper and lower clamping arms will not protrude from the contact surface of the roller and the material, and will not affect the conveying of the material.

[0020] In the above squirrel cage type turning over mechanism, the upper and lower clamping members are respectively provided with cylinder push seats matched with the upper and lower cylinders, and the cylinder push seats are provided with floating joints connected with the rod heads of the upper and lower cylinders.

[0021] The cylinder push seat is used to connect with the upper and lower cylinders, but during the operation of the equipment, vibration will inevitably occur, which may cause the rod head of the upper and lower cylinder to tilt, and working in this state will easily damage the rod and the inside of the cylinder, so a floating joint is arranged between the cylinder rod head and the cylinder push seat, which can effectively avoid the working of the cylinder rod in the tilted state and prolong the service life of the cylinder.

[0022] In the above squirrel cage type turning over mechanism, a first gear is fixedly connected to the output shaft of the squirrel cage driving motor, and a ring-shaped second gear meshing with the first gear is fixedly connected to the outside of the circular frame.

[0023] In the prior art, chain and sprocket transmission is usually used, the meshing gap is large, the positioning accuracy is low, and the circular frame will shake, so the present scheme adopts gear transmission with large gear ring, which effectively avoids the above problems and prolongs the service life of the equipment.

[0024] In the above squirrel cage type turning over mechanism, a proximity switch is arranged at the position close to the bottom of the outer side surface of the circular frame, and induction frames are arranged on the upper and lower parts of the outer side surface of the circular frame.

[0025] During the forward rotation or turning over of the squirrel cage frame, the induction frames on the upper and lower parts of the circular frame will trigger the proximity switches respectively, the proximity switches are used to control the speed reduction and stop of the rotation of the squirrel cage frame, limit the turning over angle of the equipment to 180°, and improve the automation degree of the equipment.

[0026] In the above squirrel cage type turning over mechanism, the upper and lower parts of the circular frame are provided with turning over bump blocks, and a buffer matched with the positions of the turning over bump blocks is arranged on the base frame.

[0027] During the turning over of the squirrel cage frame, the turning over bump blocks on the upper and lower parts of the circular frame cooperate with the buffer to stop and buffer the turning over of the circular frame.

[0028] In the above squirrel cage type turning over mechanism, a protective net frame surrounding the squirrel cage frame is arranged at the edge of the base frame, material inlets and outlets for conveying material are arranged on the front and rear sides of the protective net frame, and maintenance doors are arranged on the left and right sides of the protective net frame.

[0029] The protective net frame plays a protection role on the equipment and workers, avoids foreign matters or personnel from falling into the turnover machine, and the maintenance doors are arranged on the left and right sides of the protective net frame, and the maintenance doors can be opened to facilitate the workers to maintain and repair the equipment.

[0030] Compared with the prior art, the technical effect of the present application is:

[0031] Firstly, the upper and lower clamping members, the upper and lower air cylinders and the linkage gear set of the mouse cage type turnover mechanism form a linkage whole (i.e. linkage clamping mechanism), when the upper and lower air cylinders retract to pull the upper and lower clamping members, the force is conducted to the upper clamping member through the lower rack, linkage gear and upper rack, and is pulled by the lower air cylinder, and the lower air cylinder also works to lift the material at the same time, so that the movements of the upper and lower clamping members are synchronous, the strokes are the same, and the material is accurately clamped on the center of the mouse cage frame, and the two air cylinders are fully utilized during the lifting of the material, and the utilization rate of the air cylinder is improved.

[0032] Secondly, the anti-toppling assembly of the mouse cage type turnover mechanism moves synchronously with the upper and lower clamping members, and the relative position of the anti-toppling assembly and the upper and lower clamping members is unchanged, so that the anti-toppling assembly can better adapt to the change of the shape and size of the material and the height of the stopped material, and provide more stable and more accurate supporting effect when the upper and lower clamping members clamp the material.

[0033] Thirdly, the mouse cage type turnover mechanism only needs to be provided with the anti-toppling assembly on one side, the anti-toppling assembly and the upper and lower clamping members provide supporting and limiting effects, and the anti-toppling is realized through the gravity of the material itself, instead of clamping the material through the clamping mechanisms in four directions, so that the damage to the contact surface of the material during the clamping process of the clamping mechanism can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of the whole mouse cage type turnover mechanism.

[0035] Figure 2 is a schematic diagram of the structure of the mouse cage type turnover mechanism

[0036] Figure 3 is a schematic diagram of the structure of the linkage gear set of the mouse cage type turnover mechanism.

[0037] Figure 4 is a side view of the mouse cage type turnover mechanism.

[0038] Figure 5 is a schematic diagram of the cooperation structure of the upper clamping member and the power roller of the mouse cage type turnover mechanism.

[0039] Figure 6This is a schematic diagram of the anti-tipping assembly of the cage-type tilting mechanism.

[0040] Figure 7 This is a schematic diagram of the clamping arm structure of the squirrel cage flipping mechanism.

[0041] Figure 8 This is a squirrel cage type tilting mechanism Figure 2 Schematic diagram of area A in the middle.

[0042] Figure 9 This is a schematic diagram of the proximity switch and induction frame structure of the squirrel cage flipping mechanism.

[0043] Figure 10 This is a schematic diagram of the flipping block and buffer structure of the squirrel cage flipping mechanism.

[0044] In the diagram, 1 is the base frame, 11 is the roller bracket, 12 is the roller, 13 is the squirrel cage drive motor, 131 is the first gear, 132 is the second gear, 2 is the squirrel cage frame, 21 is the circular frame, 22 is the crossbeam, 221 is the linkage crossbeam, 23 is the power roller conveyor, 231 is the roller conveyor motor, 232 is the roller, 233 is the clamping arm receiving cavity, 24 is the linkage clamping mechanism, 241 is the upper clamping component, 241a is the upper clamping mounting plate, 242 is the lower clamping component, 242a is the lower clamping mounting plate, 243 is the upper cylinder, 244 is the lower cylinder, 245 is the linkage gear set, 246 is the linkage gear frame, 246a is the limit post, 2 46b is the gear mounting plate, 246c is the gear shaft, 246d is the support bearing, 247 is the linkage gear, 248 is the upper rack, 249 is the lower rack, 25 is the anti-tipping assembly, 251 is the anti-tipping cylinder, 252 is the guide assembly, 253 is the guard plate, 254 is the anti-tipping guide post, 255 is the anti-tipping guide rail, 261 is the clamping slider, 262 is the clamping slide rail, 271 is the clamping arm, 272 is the limit clamping block, 28 is the cylinder push seat, 281 is the floating joint, 3 is the proximity switch, 31 is the sensing frame, 4 is the flipping block, 41 is the buffer, 5 is the protective mesh frame, 51 is the material inlet / outlet, and 52 is the maintenance door. Detailed Implementation

[0045] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0046] like Figure 1 As shown, a rat cage type tilting mechanism includes a base frame 1, a rat cage frame 2, and a protective mesh frame 5 that surrounds the rat cage frame 2 at the edge of the base frame 1. The protective mesh frame 5 is designed to prevent foreign objects or personnel from falling into the tilting machine during operation. The front and rear sides of the protective mesh frame 5 are provided with material inlets and outlets 51 for material conveying. The left and right sides of the protective mesh frame 5 are provided with maintenance doors 52, which can be opened to facilitate maintenance and repair of the equipment by the staff.

[0047] Further, as shown in Figure 2 , the chassis 1 is provided with a pair of roller supports 11 on the front and rear sides, the roller supports 11 are provided with rollers 12 for supporting the cage frame 2, and the chassis 1 is further provided with a cage driving motor 13 for driving the cage frame 2 to rotate; the cage frame 2 includes two concentric circular frames 21 and a plurality of horizontal beams 22 for connecting the two circular frames 21, and is provided with a power roller 23 and a roller motor 231 for driving the power roller 23 on the upper and lower sides of the cage frame 2, respectively, and the power roller 23 is provided with roller cylinders 232 at intervals, and the power roller 23 delivers the material to the preset position.

[0048] As a preferred scheme, as shown in Figure 2 , Figure 8 , the output shaft of the cage driving motor 13 is fixedly connected with a first gear 131, and an annular second gear 132 is fixedly connected with the outside of the circular frame 21 and meshes with the first gear 131. In the prior art, chain and sprocket transmission is usually used, the meshing gap is large, the positioning accuracy is low, and the circular frame 21 will shake, so the present scheme adopts gear transmission with a large gear ring, which effectively avoids the above problems and can prolong the service life of the equipment.

[0049] Further, as shown in Figure 2 , Figure 3As shown, the mouse cage frame 2 also includes a linkage clamping mechanism 24, which is arranged at the left center of the mouse cage frame 2 and does not interfere with the conveying of the materials. A counterweight is arranged on the cross beam 22 at the right center of the mouse cage frame 2 to balance the weight of the linkage clamping mechanism 24 at the left center. The linkage clamping mechanism 24 includes an upper clamping piece 241, a lower clamping piece 242, an upper air cylinder 243 with a downward rod head, a lower air cylinder 244 with an upward rod head, and a linkage gear set 245. The upper end of the upper air cylinder 243 is fixedly connected with the cross beam 22, the lower end is fixedly connected with the linkage gear set 245, and the rod head extends to be connected with the lower clamping piece 242. The lower end of the lower air cylinder 244 is fixedly connected with the cross beam 22, the upper end is fixedly connected with the linkage gear set 245, and the rod head extends to be connected with the upper clamping piece 241. The linkage gear set 245 includes a horizontal linkage cross beam 221, both ends of the linkage cross beam 221 are fixedly connected with the two circular frames 21, a linkage gear frame 246 is fixedly connected with the middle part of the linkage cross beam 221, a linkage gear 247 is arranged on the linkage gear frame 246, and the left and right sides of the linkage gear 247 are respectively meshed and transmissionally connected with an upper rack 248 and a lower rack 249 arranged vertically. The upper end of the upper rack 248 is fixedly connected with the upper clamping piece 241, and the lower end of the lower rack 249 is fixedly connected with the lower clamping piece 242. Under the action of the linkage gear set 245, the upper and lower clamping pieces 241, 242, the upper and lower air cylinders 243, 244, and the linkage gear set 245 itself form a linkage whole, i.e. the linkage clamping mechanism 24. During the process that the upper and lower air cylinders 243, 244 are retracted to pull the upper and lower clamping pieces 241, 242, the lower clamping piece 242 first contacts the materials under the pulling of the upper air cylinder 243. The upper and lower air cylinders 243, 244 continue to be retracted, the upper air cylinder 243 pulls the lower clamping piece 242 to lift the materials, at this time, under the action of the linkage gear set 245, the force is conducted to the upper clamping piece 241 through the lower rack 249, the linkage gear 247, and the upper rack 248 and is pulled by the lower air cylinder 244, which can be regarded as that the lower air cylinder 244 also lifts the materials at the same time. Therefore, the movements of the upper and lower clamping pieces 241, 242 are synchronous, the strokes are the same, the materials are accurately dropped on the center of the mouse cage frame 2 when being clamped, and the upper and lower air cylinders are fully utilized during the lifting of the materials, thereby improving the utilization rate of the air cylinders.

[0050] As a preferred scheme, the linkage gear frame 246 comprises two horizontal limiting columns 246a which are perpendicular to the linkage crossbeam 221, one end of the two limiting columns 246a is fixedly connected with the linkage crossbeam 221, and the other end is connected with a gear mounting plate 246b in an integrated manner, the middle part of the gear mounting plate 246b is provided with a gear shaft 246c which penetrates through the gear mounting plate 246b, one end of the gear shaft 246c which faces the linkage crossbeam 221 is connected with a linkage gear 247 through a bearing, the linkage gear 247 and the upper and lower racks 248, 249 are all located between the two gear limiting columns 246a, the two limiting columns 246a are both provided with support bearings 246d which are in contact with the upper and lower racks 248, 249, the limiting columns 246a are located at the left and right sides of the upper and lower racks 248, 249 for limiting, in order to avoid loosening of the meshing of the upper and lower racks 248, 249 and the linkage gear 247 during operation, and in order to reduce the friction between the limiting columns 246a and the racks and thus reduce the transmission efficiency, the support bearings 246d are arranged on the limiting columns 246a, the outer circumferential surface of the support bearings 246d is in contact with the racks, and when the upper and lower racks 248, 249 move up and down, the support bearings 246d rotate accordingly.

[0051] Further, as Figure 5 、 Figure 6As shown, the outer side of the upper and lower clamping members 241, 242 is provided with an anti-toppling assembly 25, which comprises a horizontally arranged anti-toppling cylinder 251 fixedly connected with the upper and lower clamping members 241, 242 and a guide assembly 252, the rod head of the anti-toppling cylinder 251 faces the inside of the mouse cage 2 and is fixedly connected with a guard plate 253 which is parallel to the axis of the mouse cage 2; the guide assembly 252 comprises an anti-toppling guide column 254 and an anti-toppling guide rail 255 matched therewith, the end of the anti-toppling guide column 255 facing the inside of the mouse cage 2 is fixedly connected with the guard plate 253. When the material is lifted and fixed at the center position of the mouse cage 2 under the action of the linkage clamping mechanism 24, the anti-toppling assembly 25 on one side is started, the anti-toppling cylinder 254 pushes the guard plate 253 forward, and under the support and guidance of the guide assembly 252, until the guard plate 253 abuts against the material, then the mouse cage 2 starts to overturn, the anti-toppling assembly 25 moves synchronously with the upper and lower clamping members 241, 242, and the relative position thereof with the upper and lower clamping members 241, 242 does not change, therefore, no matter what changes the shape and size of the material are, and whether the stopping height of the material meets the expectation, when the upper and lower clamping members 241, 242 clamp the material, the anti-toppling assembly 25 can better adapt and provide more stable and more precise support effect. In addition, the present scheme only needs to be provided with the anti-toppling assembly 25 on one side, in the process of overturning the mouse cage 2 by 180° along the direction of the mouse cage 2 downward along the side of the guard plate 253 and upward along the side without the guard plate 253, the anti-toppling assembly 25 and the upper and lower clamping members 241, 242 provide support and limiting effect, and the anti-toppling is realized through the gravity of the material itself, rather than clamping the material through the clamping mechanism in four directions of up, down, left and right as in the prior art, which can effectively reduce the damage of the clamping mechanism to the contact surface of the material in the clamping process.

[0052] As a preferred scheme, as Figure 4 、 Figure 5As shown, the upper clamping member 241 comprises an upper clamping mounting plate 241a arranged vertically, the anti-toppling air cylinder 251 and the guide assembly 252 are both fixed to the outer side of the upper clamping mounting plate 241a towards the mouse cage 2, and the anti-toppling guide column 254 and the rod head of the anti-toppling air cylinder 255 penetrate the upper clamping mounting plate 241a; the lower clamping member 242 comprises a lower clamping mounting plate 242a arranged vertically, the anti-toppling air cylinder 251 and the guide assembly 252 are both fixed to the outer side of the lower clamping mounting plate 242a towards the mouse cage 2, and the anti-toppling guide column 254 and the rod head of the anti-toppling air cylinder 255 penetrate the lower clamping mounting plate 242a; the left and right sides of the upper and lower clamping mounting plates 241a, 242a are both fixed with clamping sliding blocks 261, and the inner side of the circular frame 21 is vertically provided with clamping sliding rails 262 matched with the clamping sliding blocks 261, and the upper and lower clamping mounting plates 241a, 242a can slide up and down along the clamping sliding rails 262. The anti-toppling air cylinder 251, the guide assembly 252, the sliding block 261 and other components are fixed on the same side by the upper and lower clamping mounting plates 241a, 242a to form a whole, and the whole is guided to slide synchronously by the sliding rails 262, which can also increase the length of the connecting part of the rack and the upper and lower clamping mounting plates 241a, 242a, and increase the connecting strength of the rack. Only the rod head of the anti-toppling air cylinder 251 and the guide column of the guide assembly 252 penetrate the upper and lower clamping mounting plates 241a, 242a, which can reduce the possibility of interference between the components, and optimize the overall structure layout.

[0053] Further, as shown in Figure 5 、 Figure 7 the upper and lower clamping mounting plates 241a, 242a are both provided with a plurality of clamping arms 271 arranged at intervals towards the inner side of the mouse cage 2, one end of the clamping arm 271 is fixed to the upper and lower clamping mounting plates 241a, 242a, and the other end is provided with a protruding limiting clamping block 272, a clamping arm accommodating cavity 233 matched with the clamping arm 271 is arranged on the power roller 23, the width of the clamping arm 271 is less than the distance between adjacent roller cylinders 232, and the clamping arm 271 can be accommodated in the clamping arm accommodating cavity 233, and the bottom / top of the upper and lower clamping arms 271 is higher / lower than the contact level of the roller cylinder 232 and the material. During the turnover process, the upper and lower clamping arms 271 are responsible for limiting and supporting the material, and the limiting clamping block 272 at the end of the clamping arm 271 can further prevent the material from slipping and toppling. In the initial state or after the turnover is completed, the upper and lower clamping arms 271 can be accommodated between adjacent two roller cylinders, and the upper and lower clamping arms 271 will not protrude from the contact surface of the roller cylinder 232 and the material, and will not affect the conveying of the material.

[0054] Further, as shown in Figure 4 、 Figure 5As shown, the upper and lower clamping members 241, 242 are respectively provided with a cylinder pusher 28 matched with the upper and lower cylinders 243, 244, and the cylinder pusher 28 is provided with a floating joint 281 connected with the rod head of the upper and lower cylinders 243, 244. The cylinder pusher 28 is used to connect with the upper and lower cylinders 243, 244, but vibration is inevitable during the operation of the device, which may cause the rod head of the upper and lower cylinders 243, 244 to tilt, and working in this state is easy to damage the rod and the interior of the cylinder. Therefore, the floating joint 281 is arranged between the rod head of the cylinder and the cylinder pusher, which can effectively avoid the working of the cylinder rod in the tilted state.

[0055] Further, as shown in the drawings, Figure 9 As shown, the bottom bracket 1 is provided with a proximity switch 3 close to the bottom of the outer side of the circular frame 21, and the upper and lower parts of the outer side of the circular frame 21 are provided with induction frames 31 matched with the upper and lower parts. During the forward rotation or the overturning of the mouse cage frame 2, the induction frames 31 on the upper and lower parts of the circular frame 21 will trigger the proximity switch 3, respectively, and the proximity switch 3 is used to control the deceleration and stop of the rotation of the mouse cage frame 2, limit the overturning angle of the device to 180°, and improve the degree of automation of the device.

[0056] Further, as shown in the drawings, Figure 10 As shown, the upper and lower parts of the circular frame 21 are respectively provided with overturning bump blocks 4, and the bottom bracket 1 is provided with a buffer 41 matched with the position of the overturning bump block 4. The overturning bump blocks 4 on the upper and lower parts of the circular frame 21 cooperate with the buffer 41 to stop and buffer the overturning of the circular frame 21.

[0057] The above embodiments are only the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope defined by the claims of the present application.

Claims

1. A squirrel cage turnover mechanism, comprising a chassis (1) and a squirrel cage frame (2), the chassis (1) is provided with a pair of roller supports (11) on each of the front and rear sides, the roller supports (11) are provided with rollers (12) for supporting the squirrel cage frame (2), and the chassis (1) is further provided with a squirrel cage drive motor (13) for driving the squirrel cage frame (2) to rotate; the squirrel cage frame (2) comprises two concentric circular frames (21) and a plurality of horizontal beams (22) for connecting the two circular frames (21), and the squirrel cage frame (2) is provided with a power roller (23) on each of the upper and lower sides, and a roller motor (231) for driving the power roller (23) to operate, and the power roller (23) is provided with roller cylinders (232) at intervals; characterized in that: the squirrel cage frame (2) further comprises a linkage clamping mechanism (24), the linkage clamping mechanism (24) comprises an upper clamping member (241), a lower clamping member (242), an upper air cylinder (243) with a downward rod head, a lower air cylinder (244) with an upward rod head, and a linkage gear set (245), the upper end of the upper air cylinder (243) is fixedly connected with the horizontal beam (22), the lower end is fixedly connected with the linkage gear set (245), and the rod head is connected with the lower clamping member (242); the lower end of the lower air cylinder (244) is fixedly connected with the horizontal beam (22), the upper end is fixedly connected with the linkage gear set (245), and the rod head is connected with the upper clamping member (241); the linkage gear set (245) comprises a horizontal linkage beam (221), the two ends of the linkage beam (221) are fixedly connected with the two circular frames (21), a linkage gear frame (246) is fixedly connected to the middle of the linkage beam (221), the linkage gear frame (246) is provided with a linkage gear (247), the left and right sides of the linkage gear (247) are respectively in meshing transmission connection with vertically arranged upper and lower racks (248) and (249), the upper end of the upper rack (248) is fixedly connected with the upper clamping member (241), and the lower end of the lower rack (249) is fixedly connected with the lower clamping member (242); the same side of the upper clamping member (241) and the lower clamping member (242) is provided with an anti-toppling assembly (25), and the other side is not provided with the anti-toppling assembly (25), the anti-toppling assembly (25) comprises an anti-toppling air cylinder (251) and a guide assembly (252) fixedly connected with the upper clamping member (241) and the lower clamping member (242), the rod head of the anti-toppling air cylinder (251) faces the inside of the squirrel cage frame (2) and is fixedly connected with a guard plate (253) at the rod head, and the guard plate (253) is parallel to the axis of the squirrel cage frame (2); the guide assembly (252) comprises an anti-toppling guide column (254) and an anti-toppling guide rail (255) matched therewith, and one end of the anti-toppling guide column (254) facing the inside of the squirrel cage frame (2) is fixedly connected with the guard plate (253). ​ 2. A squirrel cage turnover mechanism according to claim 1, characterised in that: The linkage gear frame (246) comprises two limit columns (246a) arranged horizontally and perpendicularly to the linkage cross beam (221), one end of the two limit columns (246a) is fixedly connected with the linkage cross beam (221), and the other end is connected in one body through a gear mounting plate (246b), the middle part of the gear mounting plate (246b) is provided with a gear shaft (246c) penetrating through the gear mounting plate (246b), one end of the gear shaft (246c) towards the linkage cross beam (221) is connected with the linkage gear (247) through a bearing, the linkage gear (247), the upper rack (248) and the lower rack (249) are all located between the two gear limit columns (246a), and the two limit columns (246a) are both provided with support bearings (246d) with outer peripheries abutting against the upper rack (248) and the lower rack (249).

3. A squirrel cage turnover mechanism according to claim 1, wherein: The upper clamping part (241) comprises an upper clamping mounting plate (241a) arranged vertically, the anti-toppling cylinder (251) and the guide assembly (252) are fixedly connected to the outer side of the upper clamping mounting plate (241a) towards the mouse cage (2), the anti-toppling guide column (254) and the rod head of the anti-toppling cylinder (251) penetrate through the upper clamping mounting plate (241a); The lower clamping part (242) comprises a lower clamping mounting plate (242a) arranged vertically, the anti-toppling cylinder (251) and the guide assembly (252) are fixedly connected to the outer side of the lower clamping mounting plate (242a) towards the mouse cage (2), the anti-toppling guide column (254) and the rod head of the anti-toppling cylinder (251) penetrate through the lower clamping mounting plate (242a); The two sides of the upper clamping mounting plate (241a) and the lower clamping mounting plate (242a) are fixedly connected with clamping sliding blocks (261), and the inner side of the circular frame (21) is vertically provided with clamping sliding rails (262) matched with the clamping sliding blocks (261), and the upper clamping mounting plate (241a) and the lower clamping mounting plate (242a) can slide up and down along the clamping sliding rails (262).

4. A squirrel cage turnover mechanism according to claim 3, wherein: The inner side of the upper clamping mounting plate (241a) and the lower clamping mounting plate (242a) towards the mouse cage (2) is provided with a plurality of spaced clamping arms (271), one end of the clamping arm (271) is fixedly connected with the upper clamping mounting plate (241a) and the lower clamping mounting plate (242a), the other end is provided with a protruding limiting clamping block (272), a clamping arm accommodating cavity (233) matched with the clamping arm (271) is arranged on the power roller (23), the width of the clamping arm (271) is less than the distance between adjacent roller (232), and the clamping arm (271) can be accommodated in the clamping arm accommodating cavity (233) and the bottom / top of the clamping arm (271) is higher / lower than the contact level of the roller (232) and the material.

5. A squirrel cage turnover mechanism according to claim 1, wherein: The upper clamping part (241) and the lower clamping part (242) are respectively provided with a cylinder pushing seat (28) matched with the upper cylinder (243) and the lower cylinder (244), the cylinder pushing seat (28) is provided with a floating joint (281), and the rod head of the upper cylinder (243) and the lower cylinder (244) is connected through the floating joint (281).

6. A squirrel cage inverting mechanism according to claim 1, wherein: The output shaft of the squirrel cage driving motor (13) is fixedly connected with a first gear (131), and a ring-shaped second gear (132) engaged with the first gear (131) is fixedly connected outside the circular frame (21).

7. A squirrel cage inverting mechanism according to claim 1 wherein: The bottom frame (1) is provided with a proximity switch (3) close to the bottom of the outer side surface of the circular frame (21), and the upper and lower parts of the outer side surface of the circular frame (21) are provided with induction frames (31) in a matched manner.

8. A squirrel cage turnover mechanism according to claim 1, wherein: The upper and lower parts of the inner side of the circular frame (21) are provided with overturning bumpers (4), and the bottom frame (1) is provided with bumpers (41) matched with the positions of the overturning bumpers (4).

9. A squirrel cage turnover mechanism according to claim 1, wherein: The edge of the bottom frame (1) is provided with a protective net frame (5) wrapping the squirrel cage frame (2), the front and rear sides of the protective net frame (5) are provided with material inlets and outlets (51) for material conveying, and the left and right sides of the protective net frame (5) are provided with maintenance doors (52).

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