Multi-layer storage mechanism for metal plates

Abstract

The invention provides a metal plate multi-layer storage mechanism, and relates to the technical field of storage devices.The metal plate multi-layer storage mechanism comprises a storage box, a top cover is arranged at the top of the storage box, supporting legs are fixed to the four corners of the bottom of the storage box, a plurality of frame assemblies are installed at the bottom of the top cover, and the frame assemblies can be contained in the storage box and comprise upper plates; a lower plate is arranged at the bottom of the upper plate, front end transverse strips are fixed to the front end of the upper plate and the front end of the lower plate, rear end transverse strips are fixed to the rear end of the upper plate and the rear end of the lower plate, and telescopic rods are fixed to the two ends of the rear end transverse strips of one set of frame assemblies. The metal plates are contained in the wrapping film, after the frame assembly is stacked and shrunk, the open end of the wrapping film is sealed, gas in the wrapping film is pumped out through the gas cylinder, a vacuum state is achieved, and therefore the multiple stacked plates are subjected to rust-proof protection, and long-term storage or transportation storage is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of storage devices, and particularly to a multi-layer storage mechanism for metal sheets. Background Art

[0002] Metal sheets generally refer to pure metals or alloys in industrial applications. There are approximately more than 70 kinds of pure metals in nature, among which the common ones are iron, copper, aluminum, tin, nickel, gold, silver, lead, zinc, etc. An alloy usually refers to a material formed by combining two or more metals or a metal and a non-metal and having metallic properties. There are many types of metal sheets, which are mainly divided into pure metal sheets and alloy metal sheets. When storing both of them, the problem that their surfaces are prone to rusting will be encountered. Especially for steel metal sheets, a layer of rust will be generated on their surfaces after a long time of placement. Once there is rust on the surface of the steel sheet, the rate of rust production will increase, further corroding the steel metal sheet. Therefore, when storing steel metal sheets for a long time, it is necessary to remove the moisture and oxygen in the box to prevent the surface of the steel metal sheet from being prone to rusting.

[0003] In the prior art, when encapsulating, storing or transporting iron metal sheets, in order to prevent the sheets from rusting, it is usually necessary to store them in a sealed box, and then wrap them with a film or apply an anti-rust oil to prevent the sheets from rusting. However, this method is too cumbersome to operate, and it is necessary to operate on each sheet one by one, which is time-consuming and laborious. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a multi-layer storage mechanism for metal sheets to solve the problems raised in the above background art. The structure of the present invention is novel. Multiple metal sheets can be stacked and stored through the frame assembly. The metal sheets are stored inside the wrapping film. After the frame assembly is stacked and contracted, the open end of the wrapping film is sealed, and the gas inside the wrapping film is pumped out through a gas cylinder to achieve a vacuum state, thereby providing anti-rust protection for the multiple stacked sheets and facilitating long-term storage or transportation storage.

[0005] To achieve the above object, the present invention is realized by the following technical solutions: A multi-layer storage mechanism for metal sheets, including a storage box, a top cover is provided on the top of the storage box, feet are fixed at the four corners of the bottom of the storage box, and a plurality of frame components are installed at the bottom of the top cover. The frame components can be retracted into the storage box. The frame components include an upper plate, a lower plate is provided at the bottom of the upper plate, and front cross bars are fixed at the front ends of the upper plate and the lower plate. Rear cross bars are fixed at the rear ends of the upper plate and the lower plate. Telescopic rods are fixed at both ends of the rear cross bar of a set of frame components. A wrapping component is arranged inside the frame components. The wrapping component includes a wrapping film. Through grooves are opened in the upper plate and the lower plate. The wrapping film slides through the through grooves of the upper plate and the lower plate, and the upper and lower sides of the front end of the wrapping film are connected to the two front cross bars. Air cylinders are fixed on both sides of the outer wall of the storage box, and piston rods are slidably inserted into the air cylinders. The air outlet ends of the two air cylinders and the moving directions of the piston rods are opposite. The upper plate of the uppermost frame component in the storage box is fixedly connected to the top cover. Upper side bars are fixed on both sides of the top cover. Lower side bars are fixed on both sides of the storage box at the bottom of the upper side bars. Two bolts are inserted on the surface of the upper side bar. Two screw holes are opened on the surface of the lower side bar, and the bolts can be threadedly inserted into the screw holes.

[0006] Further, the frame component further includes a chute. Chutes are opened at both ends of the front cross bar, and a sliding plate is slidably connected inside the chute. A spring is fixed between the sliding plate and the inner wall of the chute. A limiting block is fixed at the bottom of the sliding plate. The four corners of the wrapping film slide along the inside of the limiting block.

[0007] Further, a bidirectional telescopic plate is fixed on the bottom surface of the front cross bar of the upper plate, and the extended ends of both ends of the bidirectional telescopic plate are fixedly connected to the limiting block. The bidirectional telescopic plate is located at the rear end of the chute, and the top of the front end of the wrapping film is in pressing contact with the bidirectional telescopic plate.

[0008] Further, the lower plate and the upper plate of adjacent frame components are fixedly connected. Receiving plates are provided on both sides of the front cross bars and rear cross bars of a plurality of frame components, and extending plates are slidably inserted at the upper and lower ends of the receiving plates. The extending plates and the receiving plates are fixedly connected to the upper plate and the lower plate at different positions respectively.

[0009] Further, connecting rings are symmetrically fixed on both sides of the wrapping film. The connecting rings of adjacent wrapping films are vertically arranged, and sliding rods are slidably inserted into the connecting rings. Return springs are sleeved at the top and bottom of the sliding rods, and the other ends of the return springs are fixedly connected to the connecting rings. The connecting rings and sliding rods on the sides of a plurality of wrapping films are arranged in a staggered manner.

[0010] Further, sliding rails are fixed on the inner walls at both ends of the storage box at positions corresponding to the receiving plates, and the receiving plates slide along the inside of the sliding rails.

[0011] Further, the wrapping component further includes air holes, which are opened on both sides in the middle of the wrapping film. There are hollow inner plates provided on the inner walls on both sides of the storage box, and elastic connection ports are fixedly arranged at equal intervals on the surface of the inner plates. The air holes can be slidably inserted into the elastic connection ports.

[0012] Further, an outer plate is provided at the position corresponding to the inner plate on the outer side of the storage box, and the outer plate and the inner plate are fixedly connected by a connecting rod. The connecting rod part of the outer plate and the inner plate slides out along the storage box. A bidirectional screw rod is rotatably installed at the bottom of the storage box through a bearing seat, and the bottom of the outer plate is threadedly sleeved on the surface of the bidirectional screw rod.

[0013] Further, a corrugated pipe is fixed at the position of the inner plate corresponding to the air inlet of the air cylinder, and the other end of the corrugated pipe passes through the storage box and is connected to the air inlet of the air cylinder in the corresponding direction.

[0014] Further, a connecting plate is fixed at the tail end of the piston rod, and a soft belt is fixedly connected to the top of the connecting plate. The soft belt wraps around the outer side of the storage box. A limiting frame is provided at the corner of the storage box, and the soft belt slides along the limiting frame.

[0015] Advantages of the present invention:

[0016] 1. In the present invention, the connecting plate drives the piston rod to move, and the piston rod generates negative pressure inside the air cylinder. Thus, the air inside the wrapping film is pumped out through the corrugated pipe, the hollow inner plate, the air holes and the elastic connection ports, making it in a vacuum state. After the top cover covers the top of the storage box, the soft belt is squeezed and fixed by inserting the bolts and screw holes of the upper strip and the lower layer plate. Since the soft belt cannot move, the piston rod cannot push the gas in the air cylinder out, and the vacuum state inside the wrapping film can be continuously maintained.

[0017] 2. The frame components of the present invention are connected to each other through telescopic structures, and springs are arranged inside the storage plate and the extending plate, which can be elastically contracted and unfolded. While maintaining the connectivity of multiple superimposed frame components, the upper plate and the lower plate of each group of frame components can be separated for taking out the metal plate.

[0018] 3. When the overall frame components are in a superimposed state, the extending plate is stored in the storage plate, and the storage plate slides along the slide rail to limit the frame components. The outer sides of the wrapping films of each group of frame components are connected by connecting rings and sliding rods, and the adjacent sliding rods are arranged in a staggered manner so as not to cause movement interference in the superimposed storage state, maintaining the connectivity of the wrapping films, and can be synchronously unfolded and folded. Also, the outward movement distance of each group of wrapping films in the folded state is the same to connect with the elastic connection ports. When taking out the plate, by pulling the top cover, the upper plate and the lower plate of each group of frame components can be separated from top to bottom in sequence. Since the connection length of the storage plate and the extending plate is limited, when the top plate is continuously pulled upward, the upper plate and the lower plate of the lower frame components will also be separated synchronously.

[0019] 4. When the upper plate and the lower plate of the present invention are separated, the open end will have side bands. At this time, the limit block drives the sliding plate to contract inward along the sliding groove, retracting the excess lengths on both sides of the wrapping film to facilitate the removal of the metal sheet. When the upper plate and the lower plate are closed, the sliding plate is moved outward by the elastic force of the spring in the sliding groove, and the double telescopic rod also moves synchronously, pushing the excess length of the wrapping film outward to maintain contact with the metal sheet up and down. At the same time, antirust oil can be pre-applied on the inner wall of the wrapping film to enhance the antirust protection effect. When the upper plate and the lower plate approach, they will cooperate with the double telescopic plate to squeeze and seal the open end of the wrapping film, playing a role in sealing.

[0020] 5. Compared with the prior art, the present invention can stack and store multiple metal sheets through the frame assembly. The metal sheets are stored inside the wrapping film. After the frame assembly is stacked and contracted, the open end of the wrapping film is sealed, and the gas inside the wrapping film is pumped out through the air cylinder to achieve a vacuum state, thereby providing antirust protection for the multiple stacked sheets and facilitating long-term storage or transportation storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a multi-layer storage mechanism for metal sheets according to the present invention;

[0022] Figure 2 It is a schematic diagram of the bottom structure of the storage box of a multi-layer storage mechanism for metal sheets according to the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the storage box of a multi-layer storage mechanism for metal sheets according to the present invention;

[0024] Figure 4 It is a schematic diagram of the connection of multiple groups of frame assemblies of a multi-layer storage mechanism for metal sheets according to the present invention;

[0025] Figure 5 It is a schematic diagram of the connection between the frame assembly and the wrapping film of a multi-layer storage mechanism for metal sheets according to the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the frame assembly of a multi-layer storage mechanism for metal sheets according to the present invention;

[0027] Figure 7 It is a schematic diagram of the outer structure of the wrapping assembly of a multi-layer storage mechanism for metal sheets according to the present invention.

[0028] In the figure: 1. Storage box; 11. Top cover; 12. Support feet; 13. Lower side strip; 14. Upper side strip; 15. Bolt; 16. Screw hole; 17. Slide rail; 2. Frame assembly; 21. Upper plate; 22. Rear end cross bar; 23. Front end cross bar; 24. Connecting ring; 25. Slide bar; 26. Return spring; 27. Storage plate; 28. Extended plate; 29. Chute; 210. Slide plate; 211. Limit block; 212. Double-sided telescopic plate; 213. Lower plate; 214. Through slot; 215. Telescopic rod; 3. Wrapping assembly; 31. Double-sided screw rod; 32. Outer plate; 33. Air cylinder; 34. Soft belt; 35. Inner plate; 36. Elastic connection port; 37. Bellows; 38. Wrapping film; 39. Air hole; 310. Piston rod; 311. Connecting plate; 312. Limit frame. Detailed implementation manner

[0029] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0030] Please refer to Figures 1 to 7, the present invention provides a technical solution: a multi-layer storage mechanism for metal sheets, including a storage box 1, a top cover 11 is provided at the top of the storage box 1, four corners of the bottom of the storage box 1 are fixed with support feet 12, and a plurality of frame components 2 are installed at the bottom of the top cover 11. The frame components 2 can be retracted into the storage box 1. The frame component 2 includes an upper plate 21, a lower plate 213 is provided at the bottom of the upper plate 21, and front end cross bars 23 are fixed at the front ends of both the upper plate 21 and the lower plate 213. Rear end cross bars 22 are fixed at the rear ends of both the upper plate 21 and the lower plate 213. Both ends of the rear end cross bar 22 of a group of the frame components 2 are fixed with telescopic rods 215. A wrapping component 3 is arranged inside the frame component 2. The wrapping component 3 includes a wrapping film 38. Through grooves 214 are formed inside the upper plate 21 and the lower plate 213. The wrapping film 38 slides through the through grooves 214 of the upper plate 21 and the lower plate 213, and the upper and lower sides of the front end of the wrapping film 38 are connected to the two front end cross bars 23. Air cylinders 33 are fixed on both sides of the outer wall of the storage box 1, and piston rods 310 are slidably inserted into the air cylinders 33. The air outlet ends of the two air cylinders 33 and the moving directions of the piston rods 310 are opposite. The upper plate 21 of the topmost frame component 2 in the storage box 1 is fixedly connected to the top cover 11. Upper side bars 14 are fixed on both sides of the top cover 11. Lower side bars 13 are fixed on both sides of the storage box 1 at the bottom of the upper side bars 14. Two bolts 15 are inserted on the surface of the upper side bar 14. Two screw holes 16 are formed on the surface of the lower side bar 13, and the bolts 15 can be threadedly inserted into the screw holes 16. When using the device, open the top cover 11, pull out and unfold the stacked frame components 2 outward, put the metal sheets into the open end of the wrapping film 38 along the unfolding direction of the frame components 2, then stack and wrap the metal sheets with the frame components 2, compress the vertical storage of the frame components 2, and facilitate unified storage in the storage box 1. The air in the wrapping film 38 is pumped out through the wrapping component 3 to achieve rust prevention protection in a vacuum state, so as to improve the convenience of protecting the metal sheets.

[0031] In this embodiment, the frame component 2 further includes a chute 29. Both ends of the front horizontal bar 23 are provided with the chute 29, and a sliding plate 210 is slidably connected inside the chute 29. A spring is fixed between the sliding plate 210 and the inner wall of the chute 29. A limiting block 211 is fixed to the bottom of the sliding plate 210. Four corners of the wrapping film 38 slide along the inside of the limiting block 211. A bidirectional telescopic plate 212 is fixed to the bottom surface of the front horizontal bar 23 of the upper plate 21, and the elongation ends at both ends of the bidirectional telescopic plate 212 are fixedly connected to the limiting block 211. The bidirectional telescopic plate 212 is located at the rear end of the chute 29, and the top of the front end of the wrapping film 38 is in pressing contact with the bidirectional telescopic plate 212. When the upper plate 21 and the lower plate 213 are separated, the opening end will have a side strip. At this time, the limiting block 211 drives the sliding plate 210 to contract inward along the chute 29, retracting the excess lengths on both sides of the wrapping film 38 for the removal of the metal sheet. When the upper plate 21 and the lower plate 213 are closed, the elastic force of the spring in the chute 29 moves the sliding plate 210 outward, and the bidirectional telescopic rod 215 also moves synchronously, pushing the excess length of the wrapping film 38 outward to keep contact with the upper and lower metal sheets. At the same time, an anti-rust oil can be pre-coated on the inner wall of the wrapping film 38 to enhance the anti-rust protection effect. When the upper plate 21 and the lower plate 213 approach, they cooperate with the bidirectional telescopic plate 212 to squeeze and seal the opening end of the wrapping film 38, playing a role in sealing.

[0032] In this embodiment, the lower plate 213 and the upper plate 21 of the adjacent frame components 2 are fixedly connected. On both sides of the front crossbars 23 and the rear crossbars 22 of multiple groups of the frame components 2, there are storage plates 27, and the upper and lower ends of the storage plates 27 are slidably inserted with extension plates 28. The extension plates 28 and the storage plates 27 are respectively fixedly connected to the upper plates 21 and the lower plates 213 at different positions. Symmetrically fixed on both sides of the wrapping film 38 are connection rings 24. The connection rings 24 of the adjacent wrapping films 38 are vertically arranged, and a slide bar 25 is slidably inserted inside the connection rings 24. A return spring 26 is sleeved on the top and bottom of the slide bar 25, and the other end of the return spring 26 is fixed to the connection ring 24. The connection rings 24 and the slide bars 25 on the sides of multiple groups of the wrapping films 38 are arranged in a staggered manner. Fixed on the inner walls at both ends of the storage box 1 at positions corresponding to the storage plates 27 are slide rails 17, and the storage plates 27 slide along the inside of the slide rails 17. The front and rear ends of the upper plates 21 and the lower plates 213 of multiple groups of the frame components 2 are connected through the storage plates 27 and the extension plates 28. Here, it can be simply understood that the frame components 2 are connected to each other through a telescopic structure, and springs are provided inside the storage plates 27 and the extension plates 28, which can be elastically contracted and expanded. While maintaining the connectivity of multiple stacked frame components 2, the upper plates 21 and the lower plates 213 of each group of the frame components 2 can be separated to facilitate the removal of the metal sheet. In the overall stacked state of the frame components 2, the extension plates 28 are stored in the storage plates 27, and the storage plates 27 slide along the slide rails 17 to limit the frame components 2. The outer sides of the wrapping films 38 of each group of the frame components 2 are connected through the connection rings 24 and the slide bars 25. The adjacent slide bars 25 are arranged in a staggered manner so as not to cause movement interference in the stacked storage state, maintaining the connectivity of the wrapping films 38, and can also be synchronously unfolded and folded, and keeping the outward movement distance of each group of the wrapping films 38 in the folded state the same to connect with the elastic connection ports 36. When removing the sheet, by pulling the top cover 11, the upper plates 21 and the lower plates 213 of each group of the frame components 2 can be separated from top to bottom in sequence. Because the connection length of the storage plates 27 and the extension plates 28 is limited, when the top plate is continuously pulled upward, the upper plates 21 and the lower plates 213 of the lower layer of the frame components 2 will also be separated synchronously.

[0033] In this embodiment, the wrapping component 3 further includes air holes 39. Air holes 39 are formed on both sides in the middle of the wrapping film 38. On both inner walls of the storage box 1, there are hollow inner plates 35, and elastic connection ports 36 are fixedly arranged at equal intervals on the surface of the inner plates 35. The air holes 39 can be slidably inserted into the elastic connection ports 36. At the position corresponding to the inner plate 35 on the outside of the storage box 1, there is an outer plate 32, and the outer plate 32 and the inner plate 35 are fixedly connected by a connecting rod. The connecting rod part of the outer plate 32 and the inner plate 35 slides out along the storage box 1. At the bottom of the storage box 1, a bidirectional screw 31 is rotatably installed through a bearing seat, and the bottom of the outer plate 32 is threadedly sleeved on the surface of the bidirectional screw 31. At the position corresponding to the air inlet of the air cylinder 33 on the inner plate 35, a corrugated pipe 37 is fixed, and the other end of the corrugated pipe 37 passes through the storage box 1 and is connected to the air inlet of the air cylinder 33 in the corresponding direction. At the tail end of the piston rod 310, a connecting plate 311 is fixed, and at the top of the connecting plate 311, a soft belt 34 is fixedly connected. The soft belt 34 wraps around the outside of the storage box 1. At the corners of the storage box 1, there is a limiting frame 312, and the soft belt 34 slides along the limiting frame 312. After the frame assembly 2 is stacked and put into the storage box 1, the bidirectional screw 31 is rotated. The two outer plates 32 cooperate with the bidirectional screw 31 to push the inner plate 35. Due to the compression of the frame assembly 2, the redundant parts of the wrapping film 38 expand to both sides. At this time, the position of the air holes 39 is close to the elastic connection ports 36. As the inner plate 35 moves, the air holes 39 are inserted into the elastic connection ports 36, and the elastic property of the elastic connection ports 36 is relied on to maintain the sealing effect at the connection between the two. Subsequently, the soft belt 34 on the outside of the storage box 1 is manually moved. The soft belt 34 moves around the limiting frame 312 on the outside of the storage box 1 in a ring shape. During the movement, the piston rod 310 is driven to move through the connecting plate 311. The piston rod 310 generates negative pressure inside the air cylinder 33, so that the air inside the wrapping film 38 is pumped out through the corrugated pipe 37, the hollow inner plate 35, the air holes 39 and the elastic connection ports 36, making it in a vacuum state. After the top cover 11 covers the top of the storage box 1, through the insertion of the bolts 15 and the screw holes 16 of the upper strip 14 and the lower layer plate, the soft belt 34 is squeezed and fixed. Since the soft belt 34 cannot move, the piston rod 310 cannot push the gas in the air cylinder 33 out, and the vacuum state inside the wrapping film 38 can be continuously maintained. When it is necessary to take out the metal plate, the inner plate 35 is moved outwards, and the air holes 39 are separated from the connection ports.

[0034] When using the device, open the top cover 11. When the upper plate 21 and the lower plate 213 are separated, the open end will have a side strip. At this time, the limit block 211 drives the sliding plate 210 to contract inward along the chute 29, retracting the excess lengths on both sides of the wrapping film 38 to facilitate the removal of the metal sheet. When the upper plate 21 and the lower plate 213 are closed, the sliding plate 210 is moved outward by the elastic force of the spring in the chute 29, and the double telescopic rod 215 also moves synchronously, pushing the excess length of the wrapping film 38 outward to maintain contact with the metal sheet up and down. At the same time, an anti-rust oil can be pre-applied on the inner wall of the wrapping film 38 to enhance the anti-rust protection effect. When the upper plate 21 and the lower plate 213 approach, they will cooperate with the double telescopic plate 212 to squeeze and seal the open end of the wrapping film 38, playing a role in sealing. In the stacked state of the overall frame assembly 2, the extending plate 28 is received in the receiving plate 27, and the receiving plate 27 slides along the slide rail 17 to limit the frame assembly 2. The outer sides of the wrapping films 38 of each group of frame assemblies 2 are connected through the connecting ring 24 and the slide rod 25. The adjacent slide rods 25 are arranged in a staggered manner so as not to cause movement interference in the stacked storage state, maintaining the connectivity of the wrapping film 38, and can also be unfolded and folded synchronously, and keeping the outward movement distances of each group of wrapping films 38 in the folded state the same for connection with the elastic connection port 36. When taking out the sheet, the top cover 11 can be pulled to sequentially separate the upper plate 21 and the lower plate 213 of each group of frame assemblies 2 from top to bottom. Because the connection length between the receiving plate 27 and the extending plate 28 is limited, when the top plate is continuously pulled upward, the lower frame assembly 2 will also synchronously separate the upper plate 21 from the lower plate 213. Manually move the soft belt 34 outside the storage box 1. The soft belt 34 moves around the limit frame 312 outside the storage box 1 in a ring shape. During the movement, the connecting rod 310 is driven to move through the connecting plate 311. The connecting rod 310 generates negative pressure inside the air cylinder 33, so that the air inside the wrapping film 38 is pumped out through the corrugated pipe 37, the hollow inner plate 35, the air holes 39 and the elastic connection port 36, making it in a vacuum state. After the top cover 11 covers the top of the storage box 1, the soft belt 34 is squeezed and fixed through the insertion of the upper side strip 14 and the bolts 15 and screw holes 16 of the lower layer plate. Since the soft belt 34 cannot move, the connecting rod 310 cannot push the gas in the air cylinder 33 out, and the vacuum state inside the wrapping film 38 can be continuously maintained. When it is necessary to take out the metal sheet, the inner plate 35 is moved outward, and the air hole 39 is separated from the connection port to improve the convenience of protecting the metal sheet.

[0035] The foregoing shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0036] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-layer storage mechanism for metal sheets, comprising a storage box (1), characterized in that: The top of the storage box (1) is provided with a top cover (11). Four corners of the bottom of the storage box (1) are fixed with feet (12). A plurality of frame components (2) are installed at the bottom of the top cover (11). The frame components (2) can be retracted into the storage box (1). The frame component (2) includes an upper plate (21). A lower plate (213) is provided at the bottom of the upper plate (21). Front cross bars (23) are fixed at the front ends of both the upper plate (21) and the lower plate (213). Rear cross bars (22) are fixed at the rear ends of both the upper plate (21) and the lower plate (213). Two ends of the rear cross bar (22) of a set of the frame components (2) are fixed with telescopic rods (215). A wrapping component (3) is arranged inside the frame component (2). The wrapping component (3) includes a wrapping film (38). Through grooves (214) are formed inside the upper plate (21) and the lower plate (213). The wrapping film (38) slides through the through grooves (214) of the upper plate (21) and the lower plate (213). The upper and lower sides of the front end of the wrapping film (38) are connected to the two front cross bars (23). Air cylinders (33) are fixed on both sides of the outer wall of the storage box (1). A piston rod (310) is slidably inserted into the air cylinder (33). The air outlet ends of the two air cylinders (33) and the moving direction of the piston rod (310) are opposite. The upper plate (21) of the uppermost frame component (2) in the storage box (1) is fixedly connected to the top cover (11). Upper side bars (14) are fixed on both sides of the top cover (11). Lower side bars (13) are fixed on both sides of the storage box (1) at the bottom of the upper side bars (14). Two bolts (15) are inserted on the surface of the upper side bars (14). Two screw holes (16) are formed on the surface of the lower side bars (13). The bolts (15) can be threadedly inserted into the screw holes (16).

2. The multi-layer storage mechanism for metal sheets according to claim 1, characterized in that: The frame component (2) further includes a chute (29). Chutes (29) are formed at both ends of the front cross bar (23). A sliding plate (210) is slidably connected inside the chute (29). A spring is fixed between the sliding plate (210) and the inner wall of the chute (29). A limiting block (211) is fixed at the bottom of the sliding plate (210). Four corners of the wrapping film (38) slide along the inside of the limiting block (211).

3. The multi-layer storage mechanism for metal sheets according to claim 2, characterized in that: A bidirectional telescopic plate (212) is fixed on the bottom surface of the front cross bar (23) of the upper plate (21). The extended ends of both ends of the bidirectional telescopic plate (212) are fixedly connected to the limiting block (211). The bidirectional telescopic plate (212) is located at the rear end of the chute (29). The top of the front end of the wrapping film (38) is in pressing contact with the bidirectional telescopic plate (212).

4. A multi-layer storage mechanism for metal sheets according to claim 1, characterized in that: The lower plate (213) and the upper plate (21) of adjacent frame components (2) are fixedly connected. Receiving plates (27) are arranged on both sides of the front cross bars (23) and the rear cross bars (22) of the plurality of frame components (2). Extended plates (28) are slidably inserted into the upper and lower ends of the receiving plates (27). The extended plates (28) and the receiving plates (27) are fixedly connected to the upper plate (21) and the lower plate (213) at different positions respectively.

5. A multi-layer storage mechanism for metal sheets according to claim 4, characterized in that: On both sides of the wrapping film (38), connecting rings (24) are symmetrically fixed. The connecting rings (24) of adjacent wrapping films (38) are vertically arranged, and a sliding rod (25) is slidably inserted into the connecting ring (24). A return spring (26) is sleeved on the top and bottom of the sliding rod (25), and the other end of the return spring (26) is fixed to the connecting ring (24). The connecting rings (24) and the sliding rods (25) on the sides of multiple groups of wrapping films (38) are arranged in a staggered manner.

6. The multi-layer storage mechanism for metal sheets according to claim 4, characterized in that: On the inner walls at both ends of the storage box (1), sliding rails (17) are fixed at positions corresponding to the storage board (27), and the storage board (27) slides along the inside of the sliding rails (17).

7. A multi-layer storage mechanism for metal sheets according to claim 1, characterized in that: The wrapping component (3) further includes air holes (39). Air holes (39) are opened on both sides in the middle of the wrapping film (38). Hollow inner plates (35) are provided on the inner walls on both sides of the storage box (1), and elastic connection ports (36) are equidistantly fixed on the surface of the inner plates (35). The air holes (39) can be slidably inserted into the elastic connection ports (36).

8. A multi-layer storage mechanism for metal sheets according to claim 7, characterized in that: On the outside of the storage box (1), an outer plate (32) is provided at a position corresponding to the inner plate (35), and the outer plate (32) is fixedly connected to the inner plate (35) through a connecting rod. The connecting rod part of the outer plate (32) and the inner plate (35) slides out along the storage box (1). A bidirectional screw rod (31) is rotatably installed at the bottom of the storage box (1) through a bearing seat, and the bottom of the outer plate (32) is threadedly sleeved on the surface of the bidirectional screw rod (31).

9. A multi-layer storage mechanism for metal sheets according to claim 8, characterized in that: A corrugated pipe (37) is fixed at the position of the inner plate (35) corresponding to the air inlet of the air cylinder (33), and the other end of the corrugated pipe (37) passes through the storage box (1) and is connected to the air inlet of the air cylinder (33) in the corresponding direction.

10. A multi-layer storage mechanism for metal sheets according to claim 9, characterized in that: A connecting plate (311) is fixed at the tail end of the piston rod (310), and a soft belt (34) is fixedly connected to the top of the connecting plate (311). The soft belt (34) wraps around the outside of the storage box (1). A limiting frame (312) is provided at the corner of the storage box (1), and the soft belt (34) slides along the limiting frame (312).

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