Automatic covering device for storage cabinet

Abstract

The utility model discloses a storage cabinet automatic covering device which comprises a storage cabinet and a cover plate, the upper end of the storage cabinet is provided with an opening, and the storage cabinet automatic covering device further comprises a cover plate conveying device arranged along the upper end opening of the storage cabinet and arranged in the length direction of the storage cabinet; the lifting storage device comprises a frame, a lifting storage mechanism and a transmission mechanism; the frame is arranged at one end of the storage cabinet; the lifting storage mechanism and the transmission mechanism are arranged on the frame; the lifting storage mechanism comprises a lifting device and a supporting plate which is arranged on the lifting device and used for storing cover plates. The conveying mechanism is arranged at the lower end of the lifting storage mechanism. During covering, a lifting device of the lifting storage mechanism drives the cover plate to descend, the cover plate is conveyed to the conveying mechanism, the conveying mechanism conveys the cover plate to the cover plate conveying device, and the cover plate conveying device drives the cover plate to cover an upper end opening of the storage cabinet; according to the utility model, the upper port of the storage cabinet can be automatically covered by the cover plate, and the cover plate covering the upper port of the storage cabinet can be automatically withdrawn and stored, so that the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of storage cabinet covering, in particular to an automatic storage cabinet covering device. Background Art

[0002] At present, in order to improve the quality of materials in the storage cabinets, prevent the loss of moisture and temperature, and prevent the odor of different brands of materials in adjacent storage cabinets, it is necessary to strictly control the insulation, moisture retention, dust prevention, and anti-odor of the storage cabinets in the process of cigarette making. The storage cabinets need to be covered. At present, the storage cabinets are usually covered with pure cotton and PP glue structure covers, which have the advantages of insulation, dust prevention, and condensation prevention.

[0003] In the prior art, the utility model patent with patent number CN2010120742.4 discloses a covering device for a tobacco thread storage cabinet. It includes a cabinet, a cloth trolley on the cabinet, and a transmission device safety cover. A limit switch is arranged at the rear of the cabinet. Belt positioning guide rails are installed at both ends of the lower part of the cloth trolley. There is a belt between the two belt positioning guide rails. A "#"-shaped stainless steel bracket is arranged on the bottom of the belt and horizontally connected to the cabinet. A belt pressing device is installed on the belt rotating shaft at the rear end of the cabinet, and the tail of the belt is wound on the adjusting pressure roller; the front part of the belt is connected to the wire rope on the wire wheel, the wire wheel is connected to the electromagnetic motor, and a shaft pressing device is arranged on the wire wheel shaft.

[0004] The covering device provided by the above patent performs covering operation by a cloth trolley, which is not suitable for covering the storage cabinet by a cover plate. Covering the storage cabinet manually has the problems of high labor intensity, low working efficiency and high operating difficulty. Utility Model Content

[0005] The utility model aims to provide an automatic covering device for a storage cabinet, aiming to improve the problem that the covering device of the existing tobacco thread storage cabinet is not suitable for covering the storage cabinet through a cover plate.

[0006] The utility model is implemented as follows: an automatic covering device for a storage cabinet comprises a storage cabinet and a cover plate, wherein the upper end of the storage cabinet is opened, and further comprises:

[0007] A cover conveying device is arranged along the upper port of the storage cabinet and along the length direction of the storage cabinet;

[0008] A lifting storage device, the lifting storage device comprises a frame, a lifting storage mechanism and a transmission mechanism; the frame is arranged at one end of the storage cabinet, the lifting storage mechanism and the transmission mechanism are arranged on the frame; the lifting storage mechanism comprises a lifting device and a support plate for storing a cover plate arranged on the lifting device, and the transmission mechanism is arranged at the lower end of the lifting storage mechanism;

[0009] When covering, the lifting device of the lifting and storage mechanism drives the cover plate to descend, transfers the cover plate to the transmission mechanism, and the transmission mechanism transfers the cover plate to the cover plate conveying device, and the cover plate conveying device drives the cover plate to cover the upper port of the storage cabinet.

[0010] Further, the cover plate conveying device includes a first driving motor, a first speed reducer, a driving shaft, a driving sprocket, a driven sprocket and a chain. The first speed reducer is installed on the storage cabinet, the driving shaft is horizontally rotatably installed on the storage cabinet, the first driving motor is connected to the input end of the first speed reducer, and the driving shaft is connected to the output end of the first speed reducer; two driving sprockets are provided and are both installed on the driving shaft; two driven sprockets are also provided, and the two driven sprockets are rotatably installed at one end of the storage cabinet close to the frame and are respectively installed on both sides of the upper port of the storage cabinet, and the driving sprocket and the driven sprocket are connected by a chain.

[0011] Further, the cover plate conveying device further includes two groups of chain track brackets, and the two groups of chain track brackets are respectively arranged on the inner walls on both sides of the upper port of the storage cabinet, and the chain track brackets are located between the driving sprocket and the driven sprocket, and the chain track brackets are used for supporting the chain and the cover plate.

[0012] Further, the chain track bracket includes a bracket body and a track plate. The bracket body includes a C-shaped plate portion, an upper vertical plate portion and a lower vertical plate portion, and the upper vertical plate portion and the lower vertical plate portion are respectively arranged at the upper and lower ends of the opening of the C-shaped plate portion; the track plate is arranged on the upper end surface of the C-shaped plate portion, and the upper end of the track plate is lower than the upper end of the upper vertical plate portion.

[0013] Furthermore, the lifting device of the lifting storage mechanism includes a second driving motor, a second reducer, a transmission shaft and two lifting assemblies, and the two lifting assemblies are respectively arranged at the front and rear ends of the frame; the lifting assembly includes a third reducer, a lead screw, a light rod, a connecting frame and a chain sprocket mechanism, and the chain sprocket mechanism is provided with two, and is respectively arranged on the left and right sides of the lead screw, and the chain sprocket mechanism includes an upper sprocket, a lower sprocket and a lifting chain, the upper sprocket and the lower sprocket are both rotatably arranged on the frame, and the upper sprocket is located directly above the lower sprocket, the lifting chain is connected with the upper sprocket and the lower sprocket, and the two ends of the lifting chain are respectively connected to the upper and lower sprockets of the connecting frame The upper and lower ends are connected, and the two lifting chains of the two chain sprocket mechanisms are respectively connected to the left and right ends of the connecting frame; the lead screw is vertically and rotatably arranged on the frame, the light rod is vertically arranged on the frame, and the third reducer is connected to the lead screw; a round tube and a threaded tube are installed on the connecting frame, the round tube is sleeved on the light rod and connected to the light rod, and the threaded tube is sleeved on the lead screw and connected to the lead screw thread; the second driving motor and the second reducer are installed on the frame, the second driving motor is connected to the input end of the second reducer, the transmission shaft is connected to the output end of the second reducer, and the second reducer is connected to the two third reducers through the transmission shaft.

[0014] Furthermore, a plurality of support plates are provided along the length direction of the lifting chain, and the support plates are L-shaped. The vertical portion of the support plate is connected to the lifting chain, and the horizontal portion of the support plate is used to support the storage cover plate.

[0015] Furthermore, the lifting device of the lifting storage mechanism also includes two universal joint couplings, and the third reducer is connected to the transmission shaft through the universal joint couplings.

[0016] Furthermore, the transmission mechanism includes a belt transmission device and a rubber-coated roller group, and the belt transmission device and the rubber-coated roller group are respectively arranged at the lower ends of the two lifting components; the belt transmission device includes a third motor, a driving pulley, a driven pulley and a synchronous belt, and the driving pulley and the driven pulley are both rotatably installed on the frame, the third motor is connected to the driving pulley, and the synchronous belt is meshed and connected to the driving pulley and the driven pulley.

[0017] Furthermore, the transmission mechanism also includes an anti-deviation limit structure, which is arranged on the frame and located on the side of the belt transmission device away from the rubber-coated roller group; the anti-deviation limit structure includes a mounting frame and a plurality of vertically arranged limit rollers, the length direction of the mounting frame is along the conveying direction of the belt transmission device, and the limit rollers are evenly arranged in sequence along the length direction of the mounting frame.

[0018] Furthermore, a plurality of proximity switches are provided at one end of the frame away from the storage cabinet, and the proximity switches are used to detect whether the transmission mechanism transmits the cover plate to a position that can be received by the support plate of the lifting storage mechanism.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model can automatically cover the upper port of the storage cabinet with a cover plate, and can also automatically retract and store the cover plate covering the upper port of the storage cabinet, which is convenient to use.

[0021] 2. The transmission mechanism of the utility model has a belt transmission device and a rubber-coated roller group, which can transmit the cover plate between the lifting storage mechanism and the cover plate conveying device.

[0022] 3. The transmission mechanism of the utility model has an anti-deviation limiting structure, which can effectively prevent the cover plate from deviating when the belt transmission device transports the cover plate, and the limiting roller of the anti-deviation limiting structure is in rolling contact with the cover plate, which is not easy to damage the cover plate.

[0023] 4. A proximity switch is provided at one end of the frame of the utility model away from the storage cabinet. The proximity switch can be used to detect whether the transmission mechanism transmits the cover plate to a position that can be received by the support plate of the lifting and storage mechanism, or to detect whether the lifting and storage mechanism lowers the cover plate onto the transmission mechanism, thereby facilitating the automatic control of the storage and lowering of the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a partial enlarged view of the cover plate conveying device of the utility model;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the lifting storage device of the utility model;

[0027] Figure 4 yes Figure 3 A partial enlarged view of the structure shown in;

[0028] Figure 5 yes Figure 4 A magnified image of area A;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the chain track bracket of the utility model;

[0030] Figure 7 It is a side view of the chain track bracket of the utility model.

[0031] In the figure: 1. Storage cabinet; 2. Cover plate; 3. Frame; 4. Lifting and storage mechanism; 5. Cover plate conveying device; 6. First driving motor; 7. First speed reducer; 8. Chain track support; 801. Support body; 802. Track plate; 803. C-shaped plate part; 804. Upper vertical plate part; 805. Lower vertical plate part; 9. Driving shaft; 10. Driving sprocket; 11. Support plate; 12. Second driving motor; 13. Second speed reducer; 14. Third speed reducer; 15. Lead screw; 16. Smooth rod; 17. Connecting frame; 18. Chain and sprocket mechanism; 19. Transmission shaft; 20. Universal joint coupling; 21. Belt transmission device; 22. Proximity switch; 23. Anti-deviation limit structure. Detailed implementation mode

[0032] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] The following is further described in conjunction with the drawings and specific embodiments:

[0034] Such as Figure 1 And Figure 2As shown in the figure, an automatic covering device for a storage cabinet includes a storage cabinet 1, a cover plate 2, a cover plate conveying device 5, and a lifting and storage device. The upper end of the storage cabinet 1 is provided with an opening. The lifting and storage device includes a frame 3, a lifting and storage mechanism 4, and a transmission mechanism. The frame 3 is arranged at one end of the storage cabinet, and the lifting and storage mechanism 4 and the transmission mechanism are arranged on the frame 3. The cover plate conveying device 5 is arranged along the upper port of the storage cabinet 1. The cover plate conveying device 5 includes a first driving motor 6, a first speed reducer 7, a chain track bracket 8, a driving shaft 9, a driving sprocket 10, a driven sprocket, and a chain. The first speed reducer 7 is installed on the storage cabinet 1, and the driving shaft 9 is horizontally rotatably installed on the storage cabinet 1. The first driving motor 6 is connected to the input end of the first speed reducer 7, and the driving shaft 9 is connected to the output end of the first speed reducer 7. There are two driving sprockets 10, and both are installed on the driving shaft 9; there are also two driven sprockets. The two driven sprockets are rotatably installed at one end of the storage cabinet 1 close to the frame 3 and are respectively installed on both sides of the upper port of the storage cabinet 1. The driving sprocket 10 and the driven sprocket are connected by a chain. The driven sprocket is installed on a chain tensioning slideway structure, so that the driven sprocket can be appropriately adjusted along the length direction of the storage cabinet 1 to tension the chain. There are two groups of chain track brackets 8, and the two groups of chain track brackets 8 are respectively arranged on the inner walls on both sides of the upper port of the storage cabinet 1, and the chain track bracket 8 is located between the driving sprocket 10 and the driven sprocket.

[0035] As Figure 6 and Figure 7 As shown in the figure, the chain track bracket 8 includes a bracket body 801 and a track plate 802. The bracket body 801 includes a U-shaped plate portion 803, an upper vertical plate portion 804, and a lower vertical plate portion 805. The upper vertical plate portion 804 and the lower vertical plate portion 805 are respectively arranged at the upper and lower ends of the opening of the U-shaped plate portion 803. The track plate 802 is arranged on the upper end surface of the U-shaped plate portion 803, and the upper end of the track plate 802 is lower than the upper end of the upper vertical plate portion 804. The chain track bracket 8 is connected to the inner wall of the upper port of the storage cabinet 1 through the U-shaped plate portion 803. The bottom wall of the U-shaped plate portion 803 and the track plate 802 are used to support the chain, and the upper vertical plate portion 804 and the lower vertical plate portion 805 can be used to limit the chain, and the upper vertical plate portion 804 is also used to support the cover plate 2.

[0036] Operating principle of the cover plate conveying device 5: Start the first driving motor 6. The first driving motor 6 drives the driving shaft 9 to rotate through the first speed reducer 7, and then drives the two driving sprockets 10 to rotate. When the two driving sprockets 10 rotate, they drive the two driven sprockets to rotate through the chain, and at the same time, the chain also moves. Strong magnetic structures are arranged on the frames at the front and rear ends of the cover plate 2. When the chain moves, the cover plate 2 can be driven to move through the suction force of the strong magnetic structures to cover the upper port of the storage cabinet 1, or the cover plate 2 is conveyed to the transmission mechanism of the lifting and storage device.

[0037] As Figure 3 and Figure 4As shown, the lifting storage mechanism 4 includes a lifting device and a support plate 11 for storing the cover plate 2 arranged on the lifting device, and the transmission mechanism is arranged at the lower end of the lifting storage mechanism 4. The lifting device includes a second drive motor 12, a second reducer 13, a transmission shaft 19, two lifting assemblies and two universal joint couplings 20, and the two lifting assemblies are respectively arranged at the front and rear ends of the frame 3. The lifting assembly includes a third reducer 14, a lead screw 15, a light rod 16, a connecting frame 17 and a chain sprocket mechanism 18. There are two chain sprocket mechanisms 18, which are respectively arranged on the left and right sides of the lead screw 15. The chain sprocket mechanism 18 includes an upper sprocket, a lower sprocket and a lifting chain. The upper sprocket and the lower sprocket are both rotatably arranged on the frame 3, and the upper sprocket is located directly above the lower sprocket. The lifting chain is connected with the upper sprocket and the lower sprocket. The two ends of the lifting chain are respectively connected to the upper end and the lower end of the connecting frame 17. The two lifting chains of the two chain sprocket mechanisms 18 are respectively connected to the left and right ends of the connecting frame 17. Each end of the lifting chain is connected with a screw rod, and a passage for the screw rod to pass through is provided on the connecting frame 17. A nut is installed on the screw rod, so that the lifting chain and the connecting frame 17 can be detachably connected. By twisting the nut installed on the screw rod, the tension adjustment of the lifting chain can also be performed. The lead screw 15 is vertically and rotatably arranged on the frame 3, the light rod 16 is vertically arranged on the frame 3, and the third reducer 14 is connected to the lead screw 15. A round tube and a threaded tube are installed on the connecting frame 17. The round tube is sleeved on the light rod 16 and connected to the light rod 16. The threaded tube is sleeved on the lead screw 15 and is threadedly connected to the lead screw 15. The second drive motor 12 and the second reducer 13 are installed on the frame 3. The second drive motor 12 is connected to the input end of the second reducer 13, and the input ends of the two third reducers 14 are each connected to a universal joint coupling 20. The transmission shaft 19 is connected to the output end of the second reducer 13 , and both ends of the transmission shaft 19 are respectively connected to a universal joint coupling 20 , thereby realizing the connection between the transmission shaft 19 and the input ends of the two third reducers 14 .

[0038] like Figure 3 and Figure 4 As shown, a plurality of support plates 11 are provided along the length direction of the lifting chain, and the support plates 11 are L-shaped plates. The vertical portion of the support plate 11 is connected to the lifting chain, and the horizontal portion of the support plate 11 is used to support and store the cover plate 2. Two proximity switches 22 are provided at one end of the frame 3 away from the storage cabinet 1. The proximity switches 22 are used to detect whether the transmission mechanism transmits the cover plate 2 to a position that can be received by the support plate 11 of the lifting storage mechanism 4, or to detect whether the lifting storage mechanism 4 lowers the cover plate 2 onto the transmission mechanism, so as to facilitate the automatic control of the storage and lowering of the cover plate 2.

[0039] like Figure 4 and Figure 5As shown, the transmission mechanism includes a belt transmission device 21, a rubber-coated roller group and an anti-deviation limiting structure 23. The belt transmission device 21 and the rubber-coated roller group are respectively arranged at the lower ends of the two lifting components. The belt transmission device 21 and the rubber-coated roller group are respectively used to support the front and rear ends of the cover plate 2. The belt transmission device 21 includes a third motor, a driving pulley, a driven pulley and a synchronous belt. The driving pulley and the driven pulley are both rotatably mounted on the frame 3. The third motor is connected to the driving pulley, and the synchronous belt is meshed and connected with the driving pulley and the driven pulley. The anti-deviation limiting structure 23 is arranged on the frame 3 and is located on the side of the belt transmission device 21 away from the rubber-coated roller group. The anti-deviation limiting structure 23 includes a mounting frame and a plurality of vertically arranged limiting rollers. The length direction of the mounting frame is along the conveying direction of the belt transmission device 21, and each limiting roller is uniformly arranged in sequence along the length direction of the mounting frame. A circular rib is arranged on the side of each roller of the rubber-coated roller group away from the belt transmission device 21, which can also prevent the cover plate 2 from deviating. By setting the anti-deviation limiting structure 23, the cover plate 2 can be effectively prevented from deviating when the belt transmission device 21 transports the cover plate 2, and the limiting roller of the anti-deviation limiting structure 23 is in rolling contact with the cover plate 2, which is not easy to damage the cover plate 2.

[0040] The working principle of the utility model is as follows: when covering the storage cabinet 1, the second drive motor 12 is started, and the second drive motor 12 drives the transmission shaft 19 to rotate through the second reducer 13, and then drives the two third reducers 14 to rotate through the two universal joint couplings 20. When the third reducer 14 rotates, it drives the lead screw 15 to rotate, and then drives the connecting frame 17 to move upward. When the connecting frame 17 moves upward, it drives the cover plate 2 stored on the support plate 11 to move downward, and transfers the cover plate 2 to the belt transmission device 21 and the rubber-coated roller group. The third motor of the belt transmission device 21 and the first drive motor 6 of the cover plate conveying device 5 are started, and the belt transmission device 21 transmits the cover plate 2 to the cover plate conveying device 5, and the cover plate conveying device 5 drives the cover plate 2 to cover the upper port of the storage cabinet 1. When storing the cover plate 2, the steps are opposite to the steps of covering the storage cabinet 1, and multiple cover plates 2 can be stored on the support plate 11 of each lifting storage mechanism 4. When covering the storage cabinet 1, it is a process of lowering each cover plate 2 and covering the upper port of the storage cabinet 1 with each cover plate 2; when storing the cover plates 2, it is a process of retracting each cover plate 2 covering the upper port of the storage cabinet 1 into the lifting and storing mechanism. The two processes are opposite.

[0041] In summary, the utility model can automatically cover the upper port of the storage cabinet 1 with the cover plate 2, and can also automatically retract and store the cover plate 2 covering the upper port of the storage cabinet 1, which is convenient to use.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic covering device for a storage cabinet, comprising a storage cabinet (1) and a cover plate (2), wherein the upper end of the storage cabinet (1) is provided with an opening, characterized in that: Further included are: A cover plate conveying device (5), which is arranged at the upper port of the storage cabinet (1) along the length direction of the storage cabinet (1); A lifting and storage device, which includes a frame (3), a lifting and storage mechanism (4) and a transmission mechanism; the frame (3) is arranged at one end of the storage cabinet, and the lifting and storage mechanism (4) and the transmission mechanism are arranged on the frame (3); the lifting and storage mechanism (4) includes a lifting device and a support plate (11) for storing the cover plate (2) arranged on the lifting device, and the transmission mechanism is arranged at the lower end of the lifting and storage mechanism (4); When covering, the lifting device of the lifting and storage mechanism (4) drives the cover plate (2) to descend, transfers the cover plate (2) to the transmission mechanism, the transmission mechanism transfers the cover plate (2) to the cover plate conveying device (5), and the cover plate conveying device (5) drives the cover plate (2) to cover the upper port of the storage cabinet (1).

2. The automatic covering device for storage cabinets according to claim 1, characterized in that: The cover plate conveying device (5) includes a first driving motor (6), a first speed reducer (7), a driving shaft (9), a driving sprocket (10), a driven sprocket and a chain. The first speed reducer (7) is installed on the storage cabinet (1), the driving shaft (9) is horizontally rotatably installed on the storage cabinet (1), the first driving motor (6) is connected to the input end of the first speed reducer (7), and the driving shaft (9) is connected to the output end of the first speed reducer (7); two driving sprockets (10) are provided and are both installed on the driving shaft (9); two driven sprockets are also provided, and the two driven sprockets are rotatably installed at one end of the storage cabinet (1) close to the frame (3) and are respectively installed on both sides of the upper port of the storage cabinet (1), and the driving sprocket (10) and the driven sprocket are connected by a chain.

3. The automatic covering device for storage cabinets according to claim 2, characterized in that: The cover plate conveying device (5) further includes two groups of chain track brackets (8), and the two groups of chain track brackets (8) are respectively arranged on the inner walls on both sides of the upper port of the storage cabinet (1), and the chain track brackets (8) are located between the driving sprocket (10) and the driven sprocket, and the chain track brackets (8) are used to support the chain and the cover plate (2).

4. The automatic covering device for storage cabinets according to claim 3, characterized in that: The chain track bracket (8) includes a bracket body (801) and a track plate (802), the bracket body (801) includes a U-shaped plate part (803), an upper vertical plate part (804) and a lower vertical plate part (805), and the upper vertical plate part (804) and the lower vertical plate part (805) are respectively arranged at the upper and lower ends of the opening of the U-shaped plate part (803); the track plate (802) is arranged on the upper end surface of the U-shaped plate part (803), and the upper end of the track plate (802) is lower than the upper end of the upper vertical plate part (804).

5. The automatic covering device for storage cabinets according to claim 1, characterized in that: The lifting device of the lifting storage mechanism (4) comprises a second drive motor (12), a second reducer (13), a transmission shaft (19) and two lifting assemblies, the two lifting assemblies being respectively arranged at the front and rear ends of the frame (3); the lifting assembly comprises a third reducer (14), a lead screw (15), a light rod (16), a connecting frame (17) and a chain sprocket mechanism (18), two of the chain sprocket mechanisms (18) are provided and are respectively arranged at the left and right sides of the lead screw (15), the chain sprocket mechanism (18) comprises an upper sprocket, a lower sprocket and a lifting chain, the upper sprocket and the lower sprocket are both rotatably arranged on the frame (3), and the upper sprocket is located directly above the lower sprocket, the lifting chain is connected to the upper sprocket and the lower sprocket, the two ends of the lifting chain are respectively connected to the upper end and the lower end of the connecting frame (17), and the two chain sprocket mechanisms (18) are connected to the upper end and the lower end of the connecting frame (17). The two lifting chains are respectively connected to the left and right ends of the connecting frame (17); the lead screw (15) is vertically and rotatably arranged on the frame (3); the polished rod (16) is vertically arranged on the frame (3); the third reducer (14) is connected to the lead screw (15); a round tube and a threaded tube are installed on the connecting frame (17); the round tube is sleeved on the polished rod (16) and is matched and connected to the polished rod (16); the threaded tube is sleeved on the lead screw (15) and is threadedly connected to the lead screw (15); the second drive motor (12) and the second reducer (13) are installed on the frame (3); the second drive motor (12) is connected to the input end of the second reducer (13); the transmission shaft (19) is connected to the output end of the second reducer (13); the second reducer (13) is connected to the two third reducers (14) via the transmission shaft (19).

6. The automatic covering device for storage cabinets according to claim 5, characterized in that: A plurality of the support plates (11) are arranged along the length direction of the lifting chain, the support plates (11) are L-shaped, the vertical portion of the support plates (11) is connected to the lifting chain, and the horizontal portion of the support plates (11) is used to support the storage cover plate (2).

7. The automatic covering device for storage cabinets according to claim 5, characterized in that: The lifting device of the lifting storage mechanism (4) further comprises two universal joint couplings (20), and the third reducer (14) is connected to the transmission shaft (19) via the universal joint couplings (20).

8. The automatic covering device for storage cabinets according to claim 5, characterized in that: The transmission mechanism comprises a belt transmission device (21) and a rubber-coated roller group, wherein the belt transmission device (21) and the rubber-coated roller group are respectively arranged at the lower ends of the two lifting assemblies; the belt transmission device (21) comprises a third motor, a driving pulley, a driven pulley and a synchronous belt, wherein the driving pulley and the driven pulley are both rotatably mounted on the frame (3), the third motor is connected to the driving pulley, and the synchronous belt is meshedly connected to the driving pulley and the driven pulley.

9. The automatic covering device for storage cabinets according to claim 8, characterized in that: The transmission mechanism further comprises an anti-deviation limiting structure (23), the anti-deviation limiting structure (23) being arranged on the frame (3) and being located on a side of the belt transmission device (21) away from the rubber-coated roller group; the anti-deviation limiting structure (23) comprises a mounting frame and a plurality of vertically arranged limiting rollers, the length direction of the mounting frame being along the conveying direction of the belt transmission device (21), and the limiting rollers being evenly arranged in sequence along the length direction of the mounting frame.

10. The automatic covering device for storage cabinets according to claim 1, characterized in that: A plurality of proximity switches (22) are provided at one end of the frame (3) away from the storage cabinet (1), and the proximity switches (22) are used to detect whether the transmission mechanism has transmitted the cover plate (2) to a position that can be received by the support plate (11) of the lifting storage mechanism (4).

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