Material storage device with high storage capacity

Abstract

The utility model discloses a high-storage-capacity material storage device which comprises a three-dimensional frame, a fixed guide roller frame fixedly arranged on the lower portion of the three-dimensional frame, a plurality of lower guide rollers rotationally arranged on the fixed guide roller frame, a three-dimensional frame lower portion arranged on the upper portion of the three-dimensional frame in a sliding mode, and a plurality of upper guide rollers rotationally arranged on a movable guide roller frame. The lower guide rollers and the upper guide rollers are arranged in an up-down staggered mode. Multiple layers of upper guide rollers are arranged in the height direction; multiple layers of lower guide rollers are arranged in the height direction; and a lifting driving mechanism for driving the movable guide roller frame to slide up and down along the three-dimensional frame is arranged on the three-dimensional frame. The multi-layer guide rollers arranged in the isosceles triangle shape are adopted, the density of semi-finished artificial leather bypassing the upper guide roller and the lower guide roller is larger, and therefore space is saved, the structure is more compact, the problem that the space is unchanged and the storage amount is increased is ingeniously solved, it can be guaranteed that the semi-finished product feeding tension is constant in the storage period, and the storage efficiency is improved. And the device has the function of flattening artificial leather semi-finished products.

Description

Technical Field

[0001] The utility model belongs to the technical field of artificial leather production, and particularly relates to a high-storage-capacity storage device for sizing. Background Art

[0002] As a soft product, artificial leather has semi-finished products in each process that are wound and circulated on a steel core bar. Whether it is a foaming furnace production line or a surface printing production line, in the unwinding machine, in order to ensure the continuous feeding of the assembly line, the tail of the previous roll is aligned with the leather surface of the first roll of the next roll, and the oblique cut and sewing are required, which takes about three minutes. Based on the production line's speed of 30 meters per minute, no less than 90 meters of artificial leather semi-finished products need to be stored. Therefore, the storage capacity of the storage rack directly affects the production speed of the production line (the process requires that the speed cannot be reduced when changing rolls). In recent years, with the speed of the production line, the storage capacity of the storage rack must also be increased, from the original 90 meters to 150-180 meters. The general solution is to re-order extended storage racks. However, the extension of the storage rack occupies a larger area and causes the shift of the entire production line, wasting manpower and material resources. Utility Model Content

[0003] In order to solve the above technical problems existing in the prior art, the utility model provides a high-storage-capacity storage device which occupies a small area and does not require shifting of the production line when replacing the original storage rack.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a high-storage-capacity material storage device, comprising a three-dimensional frame, wherein a left fixed guide roller frame and a right fixed guide roller frame are provided at the lower part of the three-dimensional frame, which correspond to each other on the left and right and have the same structure; a left movable guide roller frame and a right movable guide roller frame are provided at the upper part of the three-dimensional frame, which correspond to each other on the left and right and have the same structure; a group of left lifting drive mechanisms for driving the left movable guide roller frame to slide up and down along the left side of the three-dimensional frame are provided on the left side of the three-dimensional frame; a group of right lifting drive mechanisms for driving the right movable guide roller frame to slide up and down along the right side of the three-dimensional frame are provided on the right side of the three-dimensional frame; the left lifting drive mechanism and the right lifting drive mechanism have the same structure, are symmetrical on the left and right and operate synchronously; a plurality of left lower mounting seats are evenly provided on the upper part of the left fixed guide roller frame along the front-back direction; a number of right lower mounting seats are evenly provided on the upper part of the right fixed guide roller frame along the front-back direction, and the number of the left lower mounting seats and the right lower mounting seats are equal to those of the left lower mounting seats, and the left lower mounting seats and the right lower mounting seats correspond one to one front to back;

[0005] A plurality of upper left mounting seats are evenly arranged on the upper portion of the left movable guide roller frame along the front-to-back direction, and a number of upper right mounting seats are evenly arranged on the upper portion of the right movable guide roller frame along the front-to-back direction, the same number as the upper left mounting seats. The upper left mounting seats and the upper right mounting seats correspond to each other front to back. The number of upper left mounting seats is one more than the number of lower left mounting seats. Each lower left mounting seat is located between two adjacent upper left mounting seats, and adjacent lower left mounting seats and upper left mounting seats are staggered in an up-and-down manner.

[0006] An upper guide roller is provided between the rearmost upper left mounting seat and the rearmost upper right mounting seat, and a plurality of upper guide rollers are rotatably provided between the other corresponding left and right upper left mounting seats. The upper guide rollers are arranged in multiple layers in the height direction, with one upper guide roller on the bottom layer and two upper guide rollers on the other layers. The centers of all the upper guide rollers on the same upper left mounting seat are located on the three sides of an isosceles triangle with its vertex facing downwards;

[0007] Several lower guide rollers are rotatably provided between the corresponding left lower mounting seat and the right lower mounting seat. The lower guide rollers are arranged in multiple layers in the height direction. The number of lower guide rollers in the top layer is one, and the number of lower guide rollers in other layers is two. The centers of all lower guide rollers on the same left lower mounting seat are located on the three sides of an isosceles triangle with the vertex facing upward.

[0008] The upper left mounting seat and the upper right mounting seat rotatably connected to multiple upper guide rollers are both shaped as isosceles triangle structures with the vertices facing downward, and the lower left mounting seat and the lower right mounting seat rotatably connected to multiple lower guide rollers are both shaped as isosceles triangle structures with the vertices facing upward.

[0009] The left lifting drive mechanism includes a cylinder, a left tensioning chain, a right tensioning chain, a left moving sprocket, a right moving sprocket, a first fixed sprocket, a second fixed sprocket and a third fixed sprocket. The cylinder is arranged on the left rear side of the three-dimensional frame in the vertical direction, and the lower end of the cylinder is hinged on the left fixed guide roller frame. The upper end of the piston rod of the cylinder is provided with a movable sprocket seat. The left moving sprocket and the right moving sprocket are arranged at intervals front and back and are rotatably connected to the movable sprocket seat respectively. The first fixed sprocket seat, the second fixed sprocket seat and the third fixed sprocket seat are respectively provided on the left side of the top of the three-dimensional frame. The first fixed sprocket seat is located on the front side of the three-dimensional frame, and the second fixed sprocket seat and the third fixed sprocket seat correspond to each other on the left and right and are Located on the rear side of the three-dimensional frame, the first fixed sprocket is rotatably arranged on the first fixed sprocket seat, the second fixed sprocket is rotatably arranged on the second fixed sprocket seat, and the third fixed sprocket is rotatably arranged on the third fixed sprocket seat. The front end of the left tensioning chain is fixedly connected to the front side of the left movable guide roller frame, and the front ends of the right tensioning chains are fixedly connected to the rear side of the left movable guide roller frame. The rear ends of the left tensioning chain and the right tensioning chain are fixedly connected to the upper rear part of the three-dimensional frame. The left tensioning chain is engaged with the front upper part of the first fixed sprocket, the rear upper part of the second fixed sprocket and the lower half of the left movable sprocket in sequence from the front, and the right tensioning chain is engaged with the rear upper part of the third fixed sprocket and the lower half of the right movable sprocket in sequence from the front.

[0010] A left front pulley is provided on the left front part of the left movable guide roller frame, a left rear pulley is provided on the left rear part of the left movable guide roller frame, a right front pulley is provided on the right front part of the right movable guide roller frame, and a right rear pulley is provided on the right rear part of the right movable guide roller frame. A guide rail is fixed vertically on the left front side, left rear side, right front side and right rear side of the three-dimensional frame respectively, and the outer circles of the left front pulley, left rear pulley, right front pulley and right rear pulley are all provided with annular grooves that roll with the adjacent guide rails.

[0011] The right side of the upper left mounting seat and the left side of the upper right mounting seat are connected to the upper bearing seat through upper screws, and the left and right ends of the upper guide roller are respectively rotatably connected to the upper bearing seat on the left and the upper bearing seat on the right; the right side of the lower left mounting seat and the left side of the lower right mounting seat are connected to the lower bearing seat through lower screws, and the left and right ends of the lower guide roller are respectively rotatably connected to the lower bearing seat on the left and the lower bearing seat on the right.

[0012] By adopting the above technical solution, the artificial leather semi-finished product passes through the discharging device of the utility model from front to back, and the roller winding method of the artificial leather semi-finished product is generally operated from front to back, from top to bottom, and from bottom to top. The artificial leather semi-finished product is finally output backward by an upper guide roller installed between the upper left mounting seat and the upper right mounting seat on the rear side.

[0013] The utility model has three working states: a normal working state (small wrap angle), a flattened state (large wrap angle, balanced with friction force) and a material storage state.

[0014] The specific working process of the utility model in normal working state is as follows: when the production line is operating normally, the piston rods of the two cylinders are in the maximum extension state, the upper left mounting seat is located between the two adjacent lower left mounting seats, and the upper right mounting seat is located between the two adjacent lower right mounting seats, that is, the multi-layer upper guide rollers and the multi-layer lower guide rollers are in a horizontal corresponding state layer by layer. At this time, the wrap angles between the artificial leather semi-finished products and each guide roller are mostly relatively small, the friction is small, and it is suitable for normal working operation.

[0015] The specific working process of the utility model in the flattening state is as follows: the piston rods of the two cylinders retract downward synchronously, and at the same time pull the left tensioning chain and the right tensioning chain downward, the movable ends of the left tensioning chain and the right tensioning chain on the left side pull the left movable guide roller frame upward, and the movable ends of the left tensioning chain and the right tensioning chain on the right side pull the right movable guide roller frame upward, the left front pulley, the left rear pulley, the right front pulley and the right rear pulley roll upward along the corresponding guide rails, and when the piston rods of the two cylinders are synchronously retracted to about half, the two cylinders stop. At this time, the wrap angle between the artificial leather semi-finished product and each guide roller is relatively large, the artificial leather semi-finished product is flattened, and the friction between the artificial leather semi-finished product and the guide rollers is also moderate, which is suitable for the flattening operation of the artificial leather semi-finished product.

[0016] The storage process of the present invention is specifically as follows: the foaming furnace slows down, and since the unwinding speed does not change, the artificial leather semi-finished product will relax and the tension will decrease. The tension detection sensor sends data to the controller, and the controller sends instructions to the left and right cylinders at the same time. The piston rods of the two cylinders retract downward synchronously, and at the same time, the left tensioning chain and the right tensioning chain are pulled downward. The movable ends of the left tensioning chain and the right tensioning chain on the left side pull the left movable guide roller frame upward, and the movable ends of the left tensioning chain and the right tensioning chain on the right side pull the right movable guide roller frame upward, and the left front pulley, the left rear pulley, the right front pulley and the right rear pulley roll upward along the corresponding guide rails. When the piston rods of the two cylinders retract to the shortest synchronously, the left movable guide roller frame and the right movable guide roller frame reach the uppermost end, and the artificial leather semi-finished product also maintains a constant tension and is stored between the upper guide roller and the lower guide roller, completing the maximum storage capacity.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a storage device with a large storage capacity without being lengthened, and adopts a multi-layer guide roller arranged in an isosceles triangle. The density of the artificial leather semi-finished products passing around the upper guide roller and the lower guide roller is higher, thereby saving space and making the structure more compact. Taking the three-layer guide roller as an example, its storage capacity is about 3-3.2 times the storage capacity of the same specification. The present invention cleverly solves the problem of increasing the storage capacity while keeping the space unchanged, and can also ensure that the feeding tension of the semi-finished product remains constant during the storage period, and has the function of flattening the artificial leather semi-finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 yes Figure 1 Right view;

[0020] Figure 3 yes Figure 1 A top view of

[0021] Figure 4 yes Figure 3 Enlarged view of part A in the middle;

[0022] Figure 5 This is a schematic diagram of the status of the upper guide roller and the lower guide roller in normal operation;

[0023] Figure 6 This is a schematic diagram of the upper guide roller and the lower guide roller when flattening the semi-finished artificial leather product;

[0024] Figure 7 It is a schematic diagram of the status of the upper guide roller and the lower guide roller when storing materials. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.

[0026] like Figure 1-Figure 4 As shown, a high storage capacity material storage device of the present invention comprises a three-dimensional frame 1, wherein a left fixed guide roller frame 2 and a right fixed guide roller frame corresponding to each other and having the same structure are provided at the lower part of the three-dimensional frame 1, and a left movable guide roller frame 4 and a right movable guide roller frame 5 corresponding to each other and having the same structure are provided at the upper part of the three-dimensional frame 1. A group of left lifting drive mechanisms for driving the left movable guide roller frame 4 to slide up and down along the left side of the three-dimensional frame 1 are provided on the left side of the three-dimensional frame 1, and a group of right lifting drive mechanisms for driving the right movable guide roller frame 5 to slide up and down along the right side of the three-dimensional frame 1 are provided on the right side of the three-dimensional frame 1. The left lifting drive mechanism and the right lifting drive mechanism have the same structure, are symmetrical on the left and right and operate synchronously. A plurality of left lower mounting seats 6 are evenly provided on the upper part of the left fixed guide roller frame 2 along the front-to-back direction, and a number of right lower mounting seats equal to the left lower mounting seat 6 are evenly provided on the upper part of the right fixed guide roller frame along the front-to-back direction, and the left lower mounting seat 6 and the right lower mounting seat correspond one to one front to back.

[0027] A plurality of upper left mounting seats 8 are evenly arranged on the upper portion of the left movable guide roller frame 4 along the front-to-back direction, and a number of upper right mounting seats 9 equal to the upper left mounting seats 8 are evenly arranged on the upper portion of the right movable guide roller frame 5 along the front-to-back direction. The upper left mounting seats 8 and the upper right mounting seats 9 correspond to each other front to back; the number of upper left mounting seats 8 is one more than the number of lower left mounting seats 6, and each lower left mounting seat 6 is located between two adjacent upper left mounting seats 8, and adjacent lower left mounting seats 6 and upper left mounting seats 8 are staggered up and down;

[0028] An upper guide roller 10 is provided between the rearmost upper left mounting seat 8 and the rearmost upper right mounting seat 9, and a plurality of upper guide rollers 10 are rotatably provided between the other corresponding left and right upper left mounting seats 8 and right upper right mounting seats 9. The upper guide rollers 10 are arranged in multiple layers in the height direction, with one upper guide roller 10 on the bottom layer and two upper guide rollers 10 on the other layers. The centers of all the upper guide rollers 10 on the same upper left mounting seat 8 are located on the three sides of the isosceles triangle with the vertex facing downwards.

[0029] Several lower guide rollers 11 are rotatably provided between the corresponding left lower mounting seat 6 and the right lower mounting seat. The lower guide rollers 11 are arranged in multiple layers in the height direction. The number of lower guide rollers 11 in the top layer is one, and the number of lower guide rollers 11 in other layers is two. The centers of all lower guide rollers 11 on the same left lower mounting seat 6 are located on the three sides of an isosceles triangle with the vertex facing upward.

[0030] The upper left mounting seat 8 and the upper right mounting seat 9 rotatably connected to multiple upper guide rollers 10 are both shaped as isosceles triangle structures with the vertices facing downward, and the lower left mounting seat 6 and the lower right mounting seat rotatably connected to multiple lower guide rollers 11 are both shaped as isosceles triangle structures with the vertices facing upward.

[0031] The left lifting drive mechanism includes a cylinder 12, a left tensioning chain 13, a right tensioning chain 14, a left moving sprocket 15, a right moving sprocket 16, a first fixed sprocket 17, a second fixed sprocket 18 and a third fixed sprocket 19. The cylinder 12 is arranged on the left rear side of the three-dimensional frame 1 in the vertical direction. The lower end of the cylinder 12 is hinged to the left fixed guide roller frame 2. The upper end of the piston rod of the cylinder 12 is provided with a movable sprocket seat 20. The left moving sprocket 15 and the right moving sprocket 16 are arranged at intervals front and back and are rotatably connected to the movable sprocket seat 20 respectively. The first fixed sprocket seat 21, the second fixed sprocket seat 22 and the third fixed sprocket seat 23 are respectively provided on the left side of the top of the three-dimensional frame 1. The first fixed sprocket seat 21 is located on the front side of the three-dimensional frame 1, and the second fixed sprocket seat 22 and the third fixed sprocket seat 23 are left and right. Correspondingly and all located on the rear side of the three-dimensional frame 1, the first fixed sprocket 17 is rotatably arranged on the first fixed sprocket seat 21, the second fixed sprocket 18 is rotatably arranged on the second fixed sprocket seat 22, and the third fixed sprocket 19 is rotatably arranged on the third fixed sprocket seat 23. The front end of the left tensioning chain 13 is fixedly connected to the front side of the left movable guide roller frame 4, and the front end of the right tensioning chain 14 is fixedly connected to the rear side of the left movable guide roller frame 4. The rear ends of the left tensioning chain 13 and the right tensioning chain 14 are fixedly connected to the upper rear part of the three-dimensional frame 1. The left tensioning chain 13 is meshed with the front upper part of the first fixed sprocket 17, the rear upper part of the second fixed sprocket 18 and the lower half of the left movable sprocket 15 in sequence from the front. The right tensioning chain 14 is meshed with the rear upper part of the third fixed sprocket 19 and the lower half of the right movable sprocket 16 in sequence from the front.

[0032] A left front pulley 24 is provided on the left front portion of the left movable guide roller frame 4, a left rear pulley 25 is provided on the left rear portion of the left movable guide roller frame 4, a right front pulley 26 is provided on the right front portion of the right movable guide roller frame 5, and a right rear pulley 27 is provided on the right rear portion of the right movable guide roller frame 5. A guide rail 28 is fixed vertically on the left front side, left rear side, right front side and right rear side of the three-dimensional frame 1 respectively, and the outer circles of the left front pulley 24, the left rear pulley 25, the right front pulley 26 and the right rear pulley 27 are all provided with an annular groove 31 for rolling cooperation with the adjacent guide rail 28.

[0033] The right side of the upper left mounting seat 8 and the left side of the upper right mounting seat 9 are connected to the upper bearing seat 29 through upper screws, and the left and right ends of the upper guide roller 10 are respectively rotatably connected to the upper bearing seat 29 on the left and the upper bearing seat 29 on the right; the right side of the lower left mounting seat 6 and the left side of the lower right mounting seat are both connected to the lower bearing seat 30 through lower screws, and the left and right ends of the lower guide roller 11 are respectively rotatably connected to the lower bearing seat 30 on the left and the lower bearing seat 30 on the right.

[0034] The artificial leather semi-finished product 32 passes through the discharging device of the present invention from front to back, and the roller winding method of the artificial leather semi-finished product 32 is generally operated from front to back, from top to bottom, and from bottom to top. The artificial leather semi-finished product 32 is finally output backward by an upper guide roller 10 installed between the upper left mounting seat 8 and the upper right mounting seat 9 on the rear side.

[0035] The utility model has three working states: a normal working state (small wrap angle), a flattened state (large wrap angle, balanced with friction force) and a material storage state.

[0036] The specific working process of the present invention in normal working state is as follows: when the production line is operating normally, the piston rods of the two cylinders 12 are in the maximum extension state, the upper left mounting seat 8 is located between the two adjacent lower left mounting seats 6, and the upper right mounting seat 9 is located between the two adjacent lower right mounting seats, that is, the multi-layer upper guide rollers 10 and the multi-layer lower guide rollers 11 are in a horizontal corresponding state. At this time, the wrap angle between the artificial leather semi-finished product 32 and each guide roller is mostly relatively small, the friction is small, and it is suitable for normal working operation. Figure 5 shown.

[0037] The specific working process of the present invention in the flattening state is as follows: the piston rods of the two cylinders 12 retract downward synchronously, and at the same time pull the left tensioning chain 13 and the right tensioning chain 14 downward. The movable ends of the left tensioning chain 13 and the right tensioning chain 14 on the left side pull the left movable guide roller frame 4 upward, and the movable ends of the left tensioning chain 13 and the right tensioning chain 14 on the right side pull the right movable guide roller frame 5 upward. The left front pulley 24, the left rear pulley 25, the right front pulley 26 and the right rear pulley 27 roll upward along the corresponding guide rails 28. When the piston rods of the two cylinders 12 retract to about half synchronously, the two cylinders 12 stop. At this time, the wrap angle between the semi-finished artificial leather 32 and each guide roller is relatively large, so the semi-finished artificial leather 32 is flattened, and the friction between the semi-finished artificial leather and the guide rollers is also moderate, which is suitable for the flattening operation of the semi-finished artificial leather 32. Figure 6 shown.

[0038] The material storage process of the present invention is as follows: the foaming furnace slows down. Since the unwinding speed does not change, the artificial leather semi-finished product 32 will relax and the tension will decrease. The tension detection sensor sends data to the controller. The controller sends instructions to the left and right cylinders 12 at the same time. The piston rods of the two cylinders 12 retract downward synchronously, pulling the left tension chain 13 and the right tension chain 14 downward at the same time. The movable ends of the left tension chain 13 and the right tension chain 14 on the left side pull the left movable guide roller frame 4 upward, and the movable ends of the left tension chain 13 and the right tension chain 14 on the right side pull the right movable guide roller frame 5 upward. The left front pulley 24, the left rear pulley 25, the right front pulley 26 and the right rear pulley 27 roll upward along the corresponding guide rails 28. When the piston rods of the two cylinders 12 retract synchronously to the shortest, the left movable guide roller frame 4 and the right movable guide roller frame 5 reach the uppermost end, completing the maximum material storage capacity. Figure 7 shown.

[0039] The above embodiments illustrate the basic principles and features of the present invention. However, the above merely illustrates preferred embodiments of the present invention and is not intended to limit the present invention to the embodiments described. Persons skilled in the art, inspired by this patent, may make various modifications and improvements without departing from the spirit of the present invention and the scope of protection of the claims, all of which fall within the scope of protection of the present invention. Therefore, the patent and scope of protection of this utility model shall be subject to the appended claims.

Claims

1. A high-capacity material storage device comprises a three-dimensional frame, wherein a left fixed guide roller frame and a right fixed guide roller frame are provided at the bottom of the three-dimensional frame, and a left movable guide roller frame and a right movable guide roller frame are provided at the top of the three-dimensional frame, and a left lifting drive mechanism is provided on the left side of the three-dimensional frame for driving the left movable guide roller frame to slide up and down along the left side of the three-dimensional frame, and a right lifting drive mechanism is provided on the right side of the three-dimensional frame for driving the right movable guide roller frame to slide up and down along the right side of the three-dimensional frame. The left lifting drive mechanism and the right lifting drive mechanism have the same structure, are symmetrical on both sides, and operate synchronously, and are characterized by: A plurality of left lower mounting seats are evenly arranged on the upper portion of the left fixed guide roller frame along the front-to-back direction, and a number of right lower mounting seats equal to the number of left lower mounting seats are evenly arranged on the upper portion of the right fixed guide roller frame along the front-to-back direction, and the left lower mounting seats and the right lower mounting seats correspond to each other one by one. A plurality of upper left mounting seats are evenly arranged on the upper portion of the left movable guide roller frame along the front-to-back direction, and a number of upper right mounting seats are evenly arranged on the upper portion of the right movable guide roller frame along the front-to-back direction, the same number as the upper left mounting seats. The upper left mounting seats and the upper right mounting seats correspond to each other front to back. The number of upper left mounting seats is one more than the number of lower left mounting seats. Each lower left mounting seat is located between two adjacent upper left mounting seats, and adjacent lower left mounting seats and upper left mounting seats are staggered in an up-and-down manner. An upper guide roller is provided between the rearmost upper left mounting seat and the rearmost upper right mounting seat, and a plurality of upper guide rollers are rotatably provided between the other corresponding left and right upper left mounting seats. The upper guide rollers are arranged in multiple layers in the height direction, with one upper guide roller on the bottom layer and two upper guide rollers on the other layers. The centers of all the upper guide rollers on the same upper left mounting seat are located on the three sides of an isosceles triangle with its vertex facing downwards; Several lower guide rollers are rotatably provided between the corresponding left lower mounting seat and the right lower mounting seat. The lower guide rollers are arranged in multiple layers in the height direction. The number of lower guide rollers in the top layer is one, and the number of lower guide rollers in other layers is two. The centers of all lower guide rollers on the same left lower mounting seat are located on the three sides of an isosceles triangle with the vertex facing upward.

2. A high storage capacity storage device according to claim 1, characterized in that: The upper left mounting seat and the upper right mounting seat rotatably connected to multiple upper guide rollers are both shaped as isosceles triangle structures with the vertices facing downward, and the lower left mounting seat and the lower right mounting seat rotatably connected to multiple lower guide rollers are both shaped as isosceles triangle structures with the vertices facing upward.

3. A high storage capacity storage device according to claim 1 or 2, characterized in that: The left lifting drive mechanism includes a cylinder, a left tensioning chain, a right tensioning chain, a left moving sprocket, a right moving sprocket, a first fixed sprocket, a second fixed sprocket and a third fixed sprocket. The cylinder is arranged on the left rear side of the three-dimensional frame in the vertical direction, and the lower end of the cylinder is hinged on the left fixed guide roller frame. The upper end of the piston rod of the cylinder is provided with a movable sprocket seat. The left moving sprocket and the right moving sprocket are arranged at intervals front and back and are rotatably connected to the movable sprocket seat respectively. The first fixed sprocket seat, the second fixed sprocket seat and the third fixed sprocket seat are respectively provided on the left side of the top of the three-dimensional frame. The first fixed sprocket seat is located on the front side of the three-dimensional frame, and the second fixed sprocket seat and the third fixed sprocket seat correspond to each other on the left and right and are Located on the rear side of the three-dimensional frame, the first fixed sprocket is rotatably arranged on the first fixed sprocket seat, the second fixed sprocket is rotatably arranged on the second fixed sprocket seat, and the third fixed sprocket is rotatably arranged on the third fixed sprocket seat. The front end of the left tensioning chain is fixedly connected to the front side of the left movable guide roller frame, and the front ends of the right tensioning chains are fixedly connected to the rear side of the left movable guide roller frame. The rear ends of the left tensioning chain and the right tensioning chain are fixedly connected to the upper rear part of the three-dimensional frame. The left tensioning chain is engaged with the front upper part of the first fixed sprocket, the rear upper part of the second fixed sprocket and the lower half of the left movable sprocket in sequence from the front, and the right tensioning chain is engaged with the rear upper part of the third fixed sprocket and the lower half of the right movable sprocket in sequence from the front.

4. A high storage capacity storage device according to any one of claims 1 to 3, characterized in that: A left front pulley is provided on the left front part of the left movable guide roller frame, a left rear pulley is provided on the left rear part of the left movable guide roller frame, a right front pulley is provided on the right front part of the right movable guide roller frame, and a right rear pulley is provided on the right rear part of the right movable guide roller frame. A guide rail is fixed vertically on the left front side, left rear side, right front side and right rear side of the three-dimensional frame respectively, and the outer circles of the left front pulley, left rear pulley, right front pulley and right rear pulley are all provided with annular grooves that roll with the adjacent guide rails.

5. A high storage capacity storage device according to any one of claims 1 to 3, characterized in that: The right side of the upper left mounting seat and the left side of the upper right mounting seat are connected to the upper bearing seat through upper screws, and the left and right ends of the upper guide roller are respectively rotatably connected to the upper bearing seat on the left and the upper bearing seat on the right; the right side of the lower left mounting seat and the left side of the lower right mounting seat are connected to the lower bearing seat through lower screws, and the left and right ends of the lower guide roller are respectively rotatably connected to the lower bearing seat on the left and the lower bearing seat on the right.

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