Gear and rack type stacking machine

Abstract

The invention discloses a gear and rack type stacking machine. The gear and rack type stacking machine comprises a bottom frame, a gear and rack type lifting mechanism, a linkage type buffering conveying mechanism and an auxiliary stopping mechanism. The gear and rack type lifting mechanism comprises a stand column support, a cargo carrying platform is arranged in the stand column support, a plurality of evenly-distributed driving motors are fixedly assembled on the outer side of the cargo carrying platform, output shafts of the driving motors are fixedly connected with driving gears, and one sides of the driving gears are engaged with racks. The linkage type buffer conveying mechanism comprises a plurality of conveying rollers, and a plurality of evenly-distributed anti-skid bearing pads are fixedly assembled on the outer sides of the multiple conveying rollers. According to the gear and rack type stacking machine disclosed by the invention, the action delay of the lifting motion of the stacking machine is greatly reduced, the reaction sensitivity of the gear and rack type stacking machine is improved, the conditions of goods deviation and shaking during lifting pause and resetting of the goods carrying platform are avoided, and the goods conveying stability, safety and reliability of the stacking machine are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of stackers, and in particular relates to a rack and pinion stacker. Background Art

[0002] A stacker is a device used to store and retrieve goods in warehouses or factories. It can stack goods vertically. Stackers can be classified according to the presence or absence of tracks, height, drive mode, and degree of automation. They are widely used in warehouses, logistics centers, and automated production lines.

[0003] Currently common stackers are mainly composed of a frame, a lifting device, a cargo platform, a conveying device, a control system and safety protection components. In actual application, the conveying device is fixedly installed on the cargo platform, and the goods to be transported are moved to the conveying device under the action of the conveying equipment. Subsequently, the cargo platform can be vertically lifted by the operation of the lifting device. The cargo platform can be fixed at different heights by controlling the operating state of the lifting device through the control system, and the goods placed on the conveying device can be moved and transported by controlling the operation of the conveying device, thereby realizing vertical stacking of the goods.

[0004] In the prior art, the conveying devices of stackers are mostly installed on the cargo platform in a rigid assembly manner, so that when the cargo platform is reset or the lifting is paused, the goods placed on the conveying device are easily affected by inertia factors and the conveying device shakes or even jumps. This not only makes the conveying device less stable in supporting the goods during the lifting of the cargo platform, but also increases the risk of the goods being displaced or even falling, resulting in poor stability and safety reliability of the stacker's cargo transportation.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The object of the present invention is to provide a rack and pinion stacker, which can provide buffer support for goods, thereby improving the stability and safety reliability of goods transportation of the stacker.

[0007] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0008] A rack and pinion stacker comprises a base frame, a rack and pinion lifting mechanism, a linkage buffer conveying mechanism and an auxiliary blocking mechanism.

[0009] The rack and pinion lifting mechanism is installed in the base frame, and the rack and pinion lifting mechanism includes a column bracket, and the column bracket is fixedly installed on the top of the base frame. A cargo platform is arranged in the column bracket, and a plurality of evenly distributed drive motors are fixedly installed on the outer side of the cargo platform. The output shafts of the plurality of drive motors are fixedly connected with drive gears, and one side of the plurality of drive gears is meshed with a rack, and the rack is fixedly installed on the side wall of the column bracket.

[0010] The linkage type buffer conveying mechanism is installed above the cargo platform, and the linkage type buffer conveying mechanism includes multiple conveying rollers. The multiple conveying rollers are rotatably installed above the cargo platform, and the outer sides of the multiple conveying rollers are fixedly installed with multiple evenly distributed anti-slip support pads. The outer sides of the conveying rollers are fixedly installed with drive control components, and the bottoms of the multiple conveying rollers are fixedly installed with linkage type buffer components.

[0011] The auxiliary blocking mechanism is fixedly assembled above the conveying roller, and the auxiliary blocking mechanism is used for limiting and protecting the plurality of conveying rollers.

[0012] In one or more embodiments of the present invention, a counterweight is slidably mounted on one side of the column bracket. The counterweight can be provided to assist in lifting the column bracket, thereby reducing the power required for lifting the column bracket. A pulling rope is fixedly connected between the counterweight and the column bracket. The pulling rope serves to connect the counterweight and the column bracket. A counterweight protective shell is provided on the outer side of the counterweight, and the counterweight protective shell is fixedly mounted on the side wall of the column bracket. The counterweight is protected by the counterweight protective shell to ensure the safety of lifting and lowering the counterweight.

[0013] In one or more embodiments of the present invention, a plurality of evenly distributed guide wheels are fixedly mounted on the side wall of the cargo platform, and the plurality of guide wheels are arranged corresponding to the drive motors, and a plurality of guide rails are fixedly mounted on the inner wall of the column bracket, and the plurality of guide rails are arranged in sliding cooperation with the guide wheels. The cooperation between the guide wheels and the guide rails plays a role in guiding the column bracket to rise and fall.

[0014] In one or more embodiments of the present invention, the drive control component includes a conveyor frame, and the plurality of conveyor rollers are rotatably assembled in the conveyor frame. The conveyor frame serves as an assembly limiter for the plurality of conveyor rollers. At the same time, the plurality of conveyor rollers can provide buffer support for the goods by providing buffer support for the conveyor frame. The ends of the plurality of conveyor rollers located outside the conveyor frame are fixedly connected with synchronous gears. The plurality of conveyor rollers are rotationally driven by driving the synchronous gears to rotate, thereby facilitating the support and movement of the goods through the rotation of the conveyor rollers. A synchronous belt is mounted on the outer side of the synchronous gear, and the synchronous belt is meshed with the synchronous gear. The synchronous belt serves as a synchronous drive control for the plurality of synchronous gears.

[0015] In one or more embodiments of the present invention, a conveying motor is fixedly mounted on the side of the conveying frame away from the synchronous gear, and the output shaft of the conveying motor is drivingly connected to a single conveying roller. The conveying motor plays the role of providing power, and the single conveying roller is rotationally driven by controlling the operation of the conveying motor.

[0016] In one or more embodiments of the present invention, blocking plates are hingedly installed on both sides of the conveying frame. By controlling the rotation of the blocking plates, the goods placed on multiple conveying rollers can be blocked and limited, thereby preventing the goods from falling. A pair of control motors are fixedly installed on one side of the conveying frame, and the output shafts of the control motors are transmission-connected to the blocking plates. The control motors play a role in providing power, and the blocking plates are rotated by controlling the operation of the control motors, thereby facilitating the control of the blocking and limiting state of the blocking plates.

[0017] In one or more embodiments of the present invention, the linkage buffer assembly includes an assembly fixing seat, and the assembly fixing seat is fixedly mounted above the column bracket. The assembly fixing seat serves to store and support the buffer fixing block. A buffer fixing block is slidably mounted in the assembly fixing seat, and the buffer fixing block is fixedly mounted below the conveying frame. The conveying frame is supported and limited by the buffer fixing block. At the same time, the conveying roller can be buffered and limited by providing buffer support to the buffer fixing block.

[0018] In one or more embodiments of the present invention, a buffer air cushion is arranged between the buffer fixing block and the assembly fixing seat. The buffer air cushion serves as a flexible support for the buffer fixing block. A plurality of evenly distributed reset springs are fixedly installed in the buffer air cushion. The buffer air cushion is supported and reset by contraction and reset of a plurality of reset springs. A damping exhaust nozzle is fixedly installed below the buffer air cushion. The damping exhaust nozzle serves to connect the buffer air cushion with the air delivery pipe, so that the air in the buffer air cushion is discharged along the damping exhaust nozzle. A damping exhaust hole is provided in the damping exhaust nozzle, and the diameter of the damping exhaust hole at one end in the buffer air cushion is larger than the diameter at the other end. By providing the damping exhaust hole, the buffer air cushion presents a situation of fast exhaust and slow air return during actual application, so that the buffer air cushion can provide buffering support for the buffer fixing block.

[0019] In one or more embodiments of the present invention, a plurality of the conveying rollers are provided with air guide channels. It is convenient to conduct the plurality of air guide pipes and transport gas through the air guide channels. A plurality of the anti-skid support pads are connected to the air guide channels. The air guide pipes serve to connect the air guide channels with the anti-skid support pads, so that the anti-skid support pads can be expanded and controlled by transporting air into the anti-skid support pads through the air guide pipes. An exhaust plate is rotatably mounted at one end of the plurality of conveying rollers, and the exhaust plate is in communication with the plurality of conveying rollers. Gas is transported and conducted to the plurality of conveying rollers through the exhaust plate. An air delivery pipe is fixedly connected between the exhaust plate and the damping exhaust nozzle. The air delivery pipe serves to connect the exhaust plate and the damping exhaust nozzle, so that the gas discharged from the damping exhaust nozzle is transported to the plurality of air guide channels along the air delivery pipes and the exhaust plate, thereby facilitating the control of the expansion state of the plurality of anti-skid support pads.

[0020] In one or more embodiments of the present invention, a plurality of uniformly distributed buffer hydraulic cylinders are fixedly assembled in the assembly fixing seat, and the plurality of buffer hydraulic cylinders are arranged on the outside of the buffer fixed block. Compression pistons are slidably assembled in the plurality of buffer hydraulic cylinders, and a piston rod is fixedly assembled above the compression piston. Buffer hydraulic oil is filled between the compression piston and the buffer hydraulic cylinder. The buffer fixed block is buffered and supported by controlling the circulation of the buffer hydraulic oil. A buffer spring is mounted on one side of the piston rod outside the buffer hydraulic cylinder. The buffer spring is supported and reset by contraction and reset of the buffer spring.

[0021] Compared with the prior art, the rack and pinion stacker disclosed in the present invention greatly reduces the action delay of the stacker's lifting movement and improves the response sensitivity of the rack and pinion stacker by setting a rack and pinion lifting mechanism.

[0022] By setting up a linked buffer conveying mechanism, the goods can be buffered and conveyed, avoiding the deviation and shaking of the goods when the cargo platform is lifted, paused and reset, and significantly improving the cargo conveying stability and safety reliability of the stacker. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A partial structural perspective view of a rack and pinion stacker according to an embodiment of the present invention;

[0025] Figure 2 A three-dimensional view of a portion of the structure of a rack and pinion stacker from another angle in one embodiment of the present invention;

[0026] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0027] Figure 4 A partial structural side view of a rack and pinion stacker according to an embodiment of the present invention;

[0028] Figure 5 for Figure 4 Schematic diagram of the structure at B in the middle;

[0029] Figure 6 A side view of a portion of the structure of a rack and pinion stacker at another angle in one embodiment of the present invention;

[0030] Figure 7 for Figure 6 Schematic diagram of the structure at C in the middle;

[0031] Figure 8 It is a front cross-sectional view of a rack and pinion stacker in one embodiment of the present invention;

[0032] Fig. 9 for Figure 8 Schematic diagram of the structure at D in the middle;

[0033] Fig.10 A side cross-sectional view of a rack and pinion stacker according to an embodiment of the present invention;

[0034] Fig.11 for Fig.10 Schematic diagram of the structure at E in the middle;

[0035] Fig.12 for Fig.10 Schematic diagram of the structure at F in the middle;

[0036] Fig.13 It is a three-dimensional diagram of a rack and pinion stacker in one embodiment of the present invention.

[0037] Description of main reference numerals:

[0038] 1- chassis, 2- rack and pinion lifting mechanism, 201- column bracket, 202- cargo platform, 203- driving motor, 204- driving gear, 205- rack, 206- counterweight, 207- pulling rope, 208- counterweight protection shell, 209- guide wheel, 210- guide rail, 3- linkage buffer conveying mechanism, 301- conveying roller, 302- non-slip support pad, 303- conveying frame, 304- synchronous gear, 305- synchronous toothed belt, 306- conveying motor, 307- blocking plate, 308- control motor, 309- assembly fixed seat, 310- buffer Fixed block, 311-buffer air cushion, 312-reset spring, 313-damping exhaust nozzle, 314-air guide channel, 315-guide air pipe, 316-exhaust plate, 317-delivery air pipe, 318-buffer hydraulic cylinder, 319-compression piston, 320-piston rod, 321-buffer spring, 322-oil drain pipe, 323-supporting oil ring, 4-auxiliary blocking mechanism, 401-blocking protection plate, 402-telescopic extension plate, 403-fixed air nozzle, 404-driving air pipe, 405-fixed connecting air pipe, 406-plywood, 407-clamping pad, 408-expansion air pipe. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0040] like Figures 1 to 13 As shown, a rack and pinion stacker in one embodiment of the present invention comprises: a base frame 1, a rack and pinion lifting mechanism 2, a linkage buffer conveying mechanism 3, and an auxiliary blocking mechanism 4.

[0041] like Figure 1 to Figure 2As shown, the rack and pinion lifting mechanism 2 is assembled in the base frame 1, and the rack and pinion lifting mechanism 2 includes a column bracket 201, and the column bracket 201 is fixedly assembled on the top of the base frame 1. The column bracket 201 plays a role in assembling and fixing the driving gear 204 and the guide rail 210. At the same time, the column bracket 201 can lift and guide the cargo platform 202.

[0042] like Figure 1 to Figure 2 As shown, a counterweight 206 is slidably mounted on one side of the column support 201. By providing the counterweight 206, the column support 201 can be assisted in lifting, thereby reducing the power required for lifting the column support 201.

[0043] like Figure 1 to Figure 2 As shown, a pulling rope 207 is fixedly connected between the counterweight block 206 and the column bracket 201. The pulling rope 207 serves to connect the counterweight block 206 and the column bracket 201.

[0044] like Figure 1 to Figure 2 As shown, a counterweight protection shell 208 is sleeved on the outer side of the counterweight block 206, and the counterweight protection shell 208 is fixedly assembled on the side wall of the column bracket 201. The counterweight protection shell 208 is used to protect the counterweight block 206 from lifting and lowering, thereby ensuring the lifting safety of the counterweight block 206.

[0045] like Figures 1 to 8 As shown, a cargo platform 202 is arranged inside the column bracket 201. Multiple drive motors 203 are assembled and fixed through the cargo platform 202. At the same time, the cargo platform 202 can be used to lift the goods to be transported.

[0046] like Figures 2 to 3 As shown, a plurality of evenly distributed guide wheels 209 are fixedly mounted on the side wall of the cargo platform 202, and the plurality of guide wheels 209 are arranged corresponding to the drive motor 203. A plurality of guide rails 210 are fixedly mounted on the inner wall of the column bracket 201, and the plurality of guide rails 210 are arranged in sliding cooperation with the guide wheels 209. The cooperation between the guide wheels 209 and the guide rails 210 plays a role in guiding the column bracket 201 to rise and fall.

[0047] like Figures 1 to 3 As shown, a plurality of evenly distributed drive motors 203 are fixedly mounted on the outer side of the cargo platform 202. The drive motors 203 play the role of fixing and rotating the drive gear 204.

[0048] Preferably, the driving motor 203 is an absolute encoder motor, and the outer side of the cargo platform 202 can be fixedly equipped with a travel switch to detect the travel and height of the cargo platform 202 .

[0049] like Figures 1 to 3As shown, the output shafts of the plurality of driving motors 203 are fixedly connected to the driving gears 204, and one side of the plurality of driving gears 204 is meshed with a rack 205, and the rack 205 is fixedly assembled on the side wall of the column bracket 201. The lifting of the cargo platform 202 is achieved through the interaction between the driving gears 204 and the racks 205, so as to facilitate the lifting and transportation of the cargo.

[0050] like Figures 2 to 9 As shown, the linkage buffer conveyor mechanism 3 is installed above the cargo platform 202, and the linkage buffer conveyor mechanism 3 includes a plurality of conveyor rollers 301, and the plurality of conveyor rollers 301 are rotatably installed above the cargo platform 202. The plurality of conveyor rollers 301 are used to support and limit the cargo, and the rotation of the plurality of conveyor rollers 301 can move and convey the cargo.

[0051] like Figure 6 to Figure 7 As shown, multiple uniformly distributed anti-skid support pads 302 are fixedly mounted on the outer sides of multiple conveying rollers 301. By arranging the anti-skid support pads 302 on the outer sides of the conveying rollers 301, not only the contact friction between the conveying rollers 301 and the bottom of the goods can be increased, but also the goods placed on the multiple conveying rollers 301 can be flexibly supported by the anti-skid support pads 302. In addition, the contact area between the conveying rollers 301 and the bottom of the goods can be increased by controlling the expansion of the anti-skid support pads 302, thereby improving the stability of the conveying rollers 301 in supporting and limiting the goods.

[0052] like Figures 6 to 9 As shown, a driving control assembly is fixedly mounted on the outer side of the conveying roller 301, and the driving control assembly includes a conveying frame 303, and multiple conveying rollers 301 are rotatably mounted in the conveying frame 303. The conveying frame 303 serves as an assembly limit for the multiple conveying rollers 301. At the same time, the conveying frame 303 can be buffered and supported so that the multiple conveying rollers 301 can buffer and support the goods.

[0053] like Figures 4 to 5 As shown, one end of the plurality of conveying rollers 301 outside the conveying frame 303 is fixedly connected to a synchronous gear 304. The plurality of conveying rollers 301 are driven to rotate by driving the synchronous gear 304 to rotate, so that the goods can be supported and moved for transportation by the rotation of the conveying rollers 301.

[0054] like Figures 4 to 5 As shown, a synchronous belt 305 is mounted on the outer side of the synchronous gear 304, and the synchronous belt 305 is meshed with the synchronous gear 304. The synchronous belt 305 plays a role in synchronous driving control of the multiple synchronous gears 304.

[0055] like Figures 4 to 7As shown, a conveying motor 306 is fixedly mounted on one side of the conveying frame 303 away from the synchronous gear 304, and the output shaft of the conveying motor 306 is drivingly connected to the single conveying roller 301. The conveying motor 306 provides power, and the single conveying roller 301 is rotationally driven by controlling the operation of the conveying motor 306.

[0056] like Figures 1 to 5 As shown, both sides of the conveying frame 303 are hingedly equipped with blocking plates 307. By controlling the rotation of the blocking plates 307, the goods placed on the multiple conveying rollers 301 can be blocked and limited, thereby avoiding the situation where the goods fall.

[0057] like Figures 1 to 5 As shown, a pair of control motors 308 are fixedly mounted on one side of the conveying frame 303, and the output shafts of the control motors 308 are drivingly connected to the blocking plate 307. The control motors 308 provide power, and the blocking plate 307 is rotated by controlling the operation of the control motors 308, so as to facilitate the control of the blocking limit state of the blocking plate 307.

[0058] like Figures 8 to 12 As shown, a linkage buffer assembly is fixedly mounted below the plurality of conveying rollers 301. The linkage buffer assembly includes an assembly fixing seat 309, which is fixedly mounted above the column bracket 201. The assembly fixing seat 309 serves to store and support the buffer fixing block 310.

[0059] like Figures 8 to 12 As shown, a buffering fixed block 310 is slidably mounted in the assembly fixed seat 309, and the buffering fixed block 310 is fixedly mounted below the conveying frame 303. The buffering fixed block 310 plays a role of supporting and limiting the conveying frame 303. At the same time, the conveying roller 301 can be buffered and limited by providing buffer support to the buffering fixed block 310.

[0060] like Figures 8 to 12 As shown, a buffer air cushion 311 is arranged between the buffer fixing block 310 and the assembly fixing seat 309. The buffer air cushion 311 plays a role of flexible support for the buffer fixing block 310.

[0061] like Figures 8 to 12 As shown, a plurality of uniformly distributed return springs 312 are fixedly mounted in the buffer air cushion 311. The buffer air cushion 311 is supported and returned by the contraction and return of the plurality of return springs 312.

[0062] like Figures 8 to 12As shown, a damping exhaust nozzle 313 is fixedly mounted below the buffer air cushion 311. The damping exhaust nozzle 313 serves to connect the buffer air cushion 311 with the air delivery pipe 317, so that the air in the buffer air cushion 311 is discharged along the damping exhaust nozzle 313.

[0063] Specifically, a damping exhaust hole is provided in the damping exhaust nozzle 313, and the diameter of the damping exhaust hole at one end in the buffer air cushion 311 is larger than the diameter at the other end. By providing the damping exhaust hole, the buffer air cushion 311 can perform fast exhaust and slow air return in actual application, so that the buffer air cushion 311 can provide buffer support for the buffer fixing block 310.

[0064] like Figures 8 to 12 As shown, a plurality of conveying rollers 301 are provided with air guide channels 314, so as to facilitate the connection and gas delivery of a plurality of air guide pipes 315 through the air guide channels 314.

[0065] like Figures 8 to 12 As shown, a plurality of anti-skid support pads 302 and air guide channels 314 are connected with air guide tubes 315. The air guide tubes 315 are used to connect the air guide channels 314 and the anti-skid support pads 302, so that the anti-skid support pads 302 can be expanded and controlled by conveying air into the anti-skid support pads 302 through the air guide tubes 315.

[0066] like Figures 8 to 12 As shown, one end of the plurality of conveying rollers 301 is rotatably equipped with an exhaust plate 316, and the exhaust plate 316 is in communication with the plurality of conveying rollers 301. The exhaust plate 316 is used to conduct gas transportation to the plurality of conveying rollers 301.

[0067] like Figures 8 to 12 As shown, an air delivery pipe 317 is fixedly connected between the exhaust plate 316 and the damping exhaust nozzle 313. The air delivery pipe 317 serves to connect the exhaust plate 316 and the damping exhaust nozzle 313, so that the gas discharged from the damping exhaust nozzle 313 is delivered to the multiple air guide channels 314 along the air delivery pipe 317 and the exhaust plate 316, thereby facilitating the control of the expansion state of the multiple anti-slip support pads 302.

[0068] like Figures 8 to 9As shown, a plurality of uniformly distributed buffer hydraulic cylinders 318 are fixedly assembled in the assembly fixing seat 309, and the plurality of buffer hydraulic cylinders 318 are arranged on the outside of the buffer fixed block 310. A compression piston 319 is slidably assembled in the plurality of buffer hydraulic cylinders 318, and a piston rod 320 is fixedly assembled above the compression piston 319. Buffer hydraulic oil is filled between the compression piston 319 and the buffer hydraulic cylinder 318. The buffer fixed block 310 is buffered and supported by controlling the circulation of the buffer hydraulic oil. A buffer spring 321 is mounted on one side of the piston rod 320 outside the buffer hydraulic cylinder 318. The buffer spring 321 is supported and reset by contraction and reset of the buffer spring 321.

[0069] like Figures 8 to 9 As shown, an oil discharge pipe 322 is fixedly connected to one side of the buffer hydraulic cylinder 318, and the inner diameter of the oil discharge pipe 322 at one end in the buffer hydraulic cylinder 318 is larger than the inner diameter of the other end. This makes the buffer hydraulic oil in the buffer hydraulic cylinder 318 present a situation where the oil discharge rate is higher than the oil return rate, so that the compression piston 319 is buffered and limited by the circulating flow state of the buffer hydraulic oil.

[0070] like Figures 8 to 9 As shown, one end of the oil drain pipe 322 located in the assembly fixing seat 309 is fixedly connected with a supporting oil ring 323. The supporting oil ring 323 is used to assist in supporting and limiting the buffer fixing block 310.

[0071] like Figures 6 to 11 As shown, the auxiliary blocking mechanism 4 is fixedly assembled above the conveying roller 301 , and the auxiliary blocking mechanism 4 is used to limit and protect the multiple conveying rollers 301 .

[0072] like Figures 6 to 11 As shown, the auxiliary blocking mechanism 4 includes a pair of blocking protection plates 401, and the pair of blocking protection plates 401 are fixedly assembled above the conveying frame 303. The pair of blocking protection plates 401 are used to block and protect the goods placed on the multiple conveying rollers 301, thereby avoiding the risk of goods falling.

[0073] like Figures 6 to 11 As shown, a pair of blocking protection plates 401 are slidably equipped with telescopic extension plates 402. By controlling the telescopic extension plate 402, the blocking range of the blocking protection plate 401 can be adjusted in linkage.

[0074] like Figures 6 to 11As shown, a pair of blocking and protective plates 401 are fixedly connected to the opposite sides thereof with fixed air nozzles 403, a driving air pipe 404 is connected between the pair of fixed air nozzles 403, a fixed communicating air pipe 405 is connected between the driving air pipe 404 and the buffer air cushion 311, and a damping exhaust nozzle 313 is fixedly connected between the fixed communicating air pipe 405 and the buffer air cushion 311. It is convenient to transport the air in the buffer air cushion 311 along the damping exhaust nozzle 313, the fixed communicating air pipe 405 and the driving air pipe 404 to the blocking and protective plates 401, so as to facilitate the driving and control of the telescopic extension plate 402.

[0075] like Figure 10 to Figure 11 As shown, a pair of blocking protection plates 401 are fixedly mounted on one side close to each other with a clamping plate 406. The clamping plate 406 plays a role of assembling and fixing the clamping pad 407.

[0076] like Figure 10 to Figure 11 As shown, a clamping pad 407 is fixedly connected to one side of the clamping plate 406 away from the blocking protection plate 401. The clamping range of the clamping plate 406 is regulated by controlling the expansion of the clamping pad 407.

[0077] like Figure 10 to Figure 11 As shown, an expansion air pipe 408 is fixedly connected between the clamping pad 407 and the blocking protection plate 401. The expansion air pipe 408 serves to connect the clamping pad 407 and the blocking protection plate 401, so that the gas in the blocking protection plate 401 is transported to the clamping pad 407 along the expansion air pipe 408.

[0078] In specific use, when the stacker is used to lift and transport goods, the blocking plate 307 is driven to unfold by controlling the operation of the control motor 308. Subsequently, the goods can be placed on the multiple conveying rollers 301, and the single conveying roller 301 is driven to rotate by controlling the operation of the conveying motor 306. The multiple conveying rollers 301 rotate synchronously under the cooperation of the synchronous gear 304 and the synchronous toothed belt 305, and the goods are supported, limited, and moved for transportation by controlling the rotation of the multiple conveying rollers 301.

[0079] When the goods move to the middle position of the conveying frame 303, the goods placed on the conveying roller 301 can be blocked and limited by controlling the motor 308 to drive the blocking plate 307 to move.

[0080] At the same time, when the goods move to the middle position of the conveying rack 303, the buffer fixed block 310 will compress the buffer air cushion 311 under the influence of the weight of the goods. At this time, the air in the buffer air cushion 311 can be transported to the exhaust plate 316 along the damping exhaust nozzle 313 and the conveying air pipe 317, and then transported to the air guide channel 314 of the multiple conveying rollers 301. The air in the air guide channel 314 can be transported to the multiple anti-skid support pads 302 along the guide air pipe 315. Through the expansion of the multiple anti-skid support pads 302, not only can the anti-skid support pads 302 prevent the goods placed on the conveying rollers 301 from skidding, but also the anti-skid support pads 302 can buffer and limit the goods. The expansion of the anti-skid support pads 302 increases the contact area between the conveying rollers 301 and the bottom of the goods, ensuring the stability of the conveying rollers 301 in carrying and limiting the goods.

[0081] In addition, the gas in the buffer air cushion 311 can be transported to the blocking protective plate 401 along the damping exhaust nozzle 313, the fixed connecting air pipe 405, the driving air pipe 404 and the fixed air nozzle 403, and the telescopic extension plate 402 can be extended under the action of the gas pressure, and the telescopic extension plate 402 can assist the blocking protective plate 401 to assist in limiting the cargo placed on the conveying roller 301. Since the telescopic extension plate 402 is extended under the action of the gas pressure, the extension length of the telescopic extension plate 402 can be increased synchronously with the increase of the cargo weight, so that the extension length of the telescopic extension plate 402 can be adaptively adjusted with the change of the cargo weight.

[0082] Subsequently, the driving gear 204 can be driven to rotate by controlling the operation of multiple driving motors 203 , and the cargo platform 202 can be lifted and controlled through the interaction between multiple sets of driving gears 204 and the rack 205 .

[0083] When the cargo platform 202 pauses during the lifting process, the buffer air cushion 311 is affected by the weight of the cargo to compress the multiple return springs 312. At this time, it is convenient for the air in the buffer air cushion 311 to be discharged along the damping exhaust nozzle 313. Under the action of the damping exhaust nozzle 313, the buffer air cushion 311 has a fast exhaust and slow return, so that the buffer air cushion 311 can provide buffer support for the buffer fixed block 310. At the same time, the buffer fixed block 310 is buffered and supported by controlling the circulation of the buffer hydraulic oil. By buffering and limiting the buffer fixed block 310, the cargo on the conveying roller 301 is buffered and limited, which avoids the shaking and deviation of the cargo due to inertia, and improves the stability and safety reliability of the stacker in lifting and conveying the cargo.

[0084] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0085] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rack and pinion stacker, characterized in that: include: chassis; A rack-and-pinion lifting mechanism is installed in the base frame, and the rack-and-pinion lifting mechanism includes a column bracket, and the column bracket is fixedly installed above the base frame. A cargo platform is arranged in the column bracket, and a plurality of evenly distributed drive motors are fixedly installed on the outer side of the cargo platform. The output shafts of the plurality of drive motors are fixedly connected with drive gears, and one side of the plurality of drive gears is meshed with a rack, and the rack is fixedly installed on the side wall of the column bracket; A linkage type buffer conveying mechanism is mounted above the cargo platform, and the linkage type buffer conveying mechanism comprises a plurality of conveying rollers, the plurality of conveying rollers are rotatably mounted above the cargo platform, the outer sides of the plurality of conveying rollers are fixedly mounted with a plurality of uniformly distributed anti-skid support pads, the outer sides of the conveying rollers are fixedly mounted with a driving control component, and the lower sides of the plurality of conveying rollers are fixedly mounted with a linkage type buffer component; The auxiliary blocking mechanism is fixedly mounted above the conveying roller, and the auxiliary blocking mechanism is used for limiting the position of the plurality of conveying rollers.

2. The rack and pinion stacker according to claim 1, characterized in that: A counterweight block is slidably mounted on one side of the column bracket, a pulling rope is fixedly connected between the counterweight block and the column bracket, a counterweight protection shell is sleeved on the outer side of the counterweight block, and the counterweight protection shell is fixedly mounted on the side wall of the column bracket.

3. The rack and pinion stacker according to claim 1, characterized in that: A plurality of evenly distributed guide wheels are fixedly mounted on the side wall of the cargo platform, and the plurality of guide wheels are arranged corresponding to the drive motors. A plurality of guide rails are fixedly mounted on the inner wall of the column bracket, and the plurality of guide rails are arranged in sliding cooperation with the guide wheels.

4. The rack and pinion stacker according to claim 1, characterized in that: The drive control component includes a conveying frame, and multiple conveying rollers are rotatably assembled in the conveying frame. One end of the multiple conveying rollers located outside the conveying frame is fixedly connected to a synchronous gear, and a synchronous belt is mounted on the outer side of the synchronous gear, and the synchronous belt is meshed with the synchronous gear.

5. The rack and pinion stacker according to claim 4, characterized in that: A conveying motor is fixedly mounted on one side of the conveying frame away from the synchronous gear, and an output shaft of the conveying motor is drivingly connected to a single conveying roller.

6. The rack and pinion stacker according to claim 5, characterized in that: Both sides of the conveying frame are hingedly equipped with blocking plates, and one side of the conveying frame is fixedly equipped with a pair of control motors, and the output shafts of the control motors are drivingly connected with the blocking plates.

7. The rack and pinion stacker according to claim 4, characterized in that: The linkage buffer assembly comprises an assembly fixing seat, which is fixedly assembled above the column bracket, and a buffer fixing block is slidably assembled in the assembly fixing seat, and the buffer fixing block is fixedly assembled below the conveying frame.

8. The rack and pinion stacker according to claim 7, characterized in that: A buffer air cushion is arranged between the buffer fixing block and the assembly fixing seat, a plurality of evenly distributed return springs are fixedly installed in the buffer air cushion, a damping exhaust nozzle is fixedly installed below the buffer air cushion, a damping exhaust hole is opened in the damping exhaust nozzle, and the diameter of the damping exhaust hole at one end in the buffer air cushion is larger than the diameter at the other end.

9. The rack and pinion stacker according to claim 8, characterized in that: An air guide channel is opened in the plurality of conveying rollers, an air guide pipe is connected between the plurality of anti-slip support pads and the air guide channel, an exhaust plate is rotatably installed at one end of the plurality of conveying rollers, the exhaust plate is in communication with the plurality of conveying rollers, and an air guide pipe is fixedly connected between the exhaust plate and the damping exhaust nozzle.

10. The rack and pinion stacker according to claim 1, characterized in that: A plurality of evenly distributed buffer hydraulic cylinders are fixedly assembled in the assembly fixing seat, and the plurality of buffer hydraulic cylinders are arranged on the outside of the buffer fixing block. Compression pistons are slidably assembled in the plurality of buffer hydraulic cylinders, and a piston rod is fixedly assembled above the compression piston. Buffer hydraulic oil is filled between the compression piston and the buffer hydraulic cylinder, and a buffer spring is mounted on one side of the piston rod outside the buffer hydraulic cylinder.

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