Intelligent material storage equipment facilitating material taking

Abstract

The invention relates to the field of material storage equipment, in particular to intelligent material storage equipment facilitating material taking, which comprises a tray arranged in a three-dimensional warehouse and used for lifting, vertical synchronous belts and horizontal supporting arm assemblies are arranged on the two sides of the tray, and the supporting arm assemblies are distributed along the synchronous belts at equal intervals; an air pipe penetrates through the supporting arm assemblies located on the side, close to the tray, of the synchronous belt in a sealed and sliding mode; a first ball pulley is inserted in the side wall of the top end of the air pipe in a clearance penetrating mode, and an insertion pipe is inserted in a sealed penetrating mode. The belt and the tray ascend and descend synchronously, medicament soft bags are lifted in a layered mode through the supporting arm assemblies fixed to the belt, the defects that the medicament soft bags are poor in stacking stability and prone to toppling over and poor in pressure resistance and burst are overcome, the supporting arm assemblies at the idle positions can be folded automatically, and occupied space is reduced; the effect of safely stacking the medicament soft packages in an ultrahigh mode in a room with a limited area can be achieved, and the problem that an existing medicament three-dimensional warehouse is poor in medicament soft package storage effect is effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of storage equipment, and in particular to an intelligent storage equipment that is convenient for material taking. Background Art

[0002] The manual medicine taking in hospital pharmacies has gradually been replaced by intelligent devices. The main part of the device includes the three-dimensional storage of drugs. The advantage of three-dimensional storage is that in a pharmacy with limited floor area, the height of the pharmacy is fully utilized to stack duplicate drugs in a form similar to stacking, increasing the space utilization rate of the pharmacy.

[0003] It has been found in the use of existing three-dimensional medicine warehouses that they are more friendly to drugs with hard shell packaging, but less suitable for soft-packaged liquid medicines. The main problem is that the overall softness of the soft medicine packages makes them prone to deformation, which is not conducive to stable stacking. The compressive resistance of the soft medicine packages is poor and they are prone to bursting when pressed, restricting the stacking height of the soft medicine packages. To solve the above problems, an intelligent storage equipment that is convenient for material taking and can automatically retract and extend the support arms is proposed. Summary of the Invention

[0004] In view of the above or the disadvantages in the prior art that the soft medicine packages have poor stacking stability and are prone to tipping, and poor compressive resistance and are prone to bursting, resulting in poor storage effect of soft medicine packages in existing three-dimensional medicine warehouses, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide an intelligent storage equipment that is convenient for material taking.

[0006] To solve the above technical problems, the present invention provides the following technical solution: An intelligent storage equipment that is convenient for material taking, including a tray for lifting arranged in a three-dimensional warehouse. Vertical synchronous belts and horizontal support arm assemblies are arranged on both sides of the tray. The support arm assemblies are evenly distributed along the circumference of the synchronous belt, and an air pipe is hermetically slid through between the support arm assemblies adjacent to the tray side of the synchronous belt. A first ball pulley is inserted through the side wall of the top end of the air pipe with a gap, and an insertion pipe is hermetically inserted through. One end of the insertion pipe is slidably sleeved with the first ball pulley and hermetically abuts against the inner wall of the air pipe, and a first spring is sleeved between the outer wall of the insertion pipe and the inner wall of the air pipe to provide a sealing pressure. The other end of the insertion pipe is fixedly sleeved with a second ball pulley, and a second spring is arranged between the first ball pulley and the second ball pulley. The elastic force of the second spring is greater than that of the first spring. A "Y"-shaped folding arm is hinged to the outer wall of the housing of the support arm assembly. A piston rod is arranged inside the housing of the support arm assembly and is hinged to the end of the short side of the "Y" shape of the folding arm. A pair of sealing rings are arranged on the housing and are hermetically slidably sleeved with the outer wall of the air pipe. An air path is opened on the inner wall of the housing to communicate the end of the piston rod away from the folding arm to between the sealing rings. An arc groove is arranged on the inner wall of the housing at the position of the second ball pulley.

[0007] As a preferred solution of the intelligent material storage equipment for easy material retrieval of the present invention, the pulleys at both ends of the synchronous belt are rotatably connected to the frame of the stereoscopic warehouse, the bottom end of the air pipe is vertically fixedly plugged into the frame of the lifting storage mechanism and connected to the compressed air source, and the top end of the air pipe is sealed.

[0008] As a preferred solution of the intelligent material storage device for facilitating material retrieval of the present invention, the height of the top end of the air pipe is lower than the height of the top end pulley of the synchronous belt.

[0009] As a preferred solution of the intelligent material storage device for facilitating material retrieval of the present invention, a "U"-shaped metal fork is fixed to the outer wall of the shell of the support arm assembly, the synchronous belt and the metal fork are symmetrically arranged about the two ends of the support arm assembly, the width of the synchronous belt is greater than the length of the pulley, and the inner wall of the synchronous belt extending beyond the pulley is matched with a tape, and the metal fork is fixedly inserted between the tooth gap of the synchronous belt and the tape.

[0010] As a preferred solution of the intelligent material storage device for facilitating material retrieval of the present invention, the shell of the support arm assembly is located at the connection between the piston rod and the folding arm, a slide groove is provided to match the movement stroke of the piston rod, and a spring three is coaxially arranged at one end of the piston rod located at the slide groove.

[0011] As a preferred solution of the intelligent material storage device for facilitating material retrieval of the present invention, the support arm assemblies connected to the trachea sleeve all unfold their folding arms, and after the folding arms of the support arm assemblies are unfolded, the long side of the "Y" shape forms a horizontal angle of forty-five degrees with the shell of the support arm assembly.

[0012] As a preferred solution of the intelligent material storage device for facilitating material retrieval of the present invention, the folding arms are unfolded on both sides of the tray, the long sides of the "Y" shape between the folding arms are parallel to each other, and the folding arms are only unfolded toward the tray.

[0013] As a preferred solution of the intelligent material storage device for facilitating material retrieval of the present invention, clamping blocks are provided at the four corners of the bottom surface of the tray, and the clamping blocks are fixedly clamped with the synchronous belts at corresponding positions.

[0014] As a preferred solution of the intelligent material storage device for facilitating material retrieval of the present invention, baffles are vertically arranged on the edges of the tray located on the sides of the four synchronous belts connected thereto.

[0015] As a preferred solution of the intelligent material storage device for facilitating material retrieval of the present invention, a lifting bracket is arranged in the middle of the stereoscopic warehouse, ball screws for driving are arranged at both ends of the lifting bracket, and the two rows of trays are symmetrically distributed on both sides of the lifting bracket, and the bottom surface of the tray is fixedly assembled with the lifting bracket.

[0016] The beneficial effects of the intelligent material storage equipment for easy material retrieval of the present invention: the present invention arranges a belt and a tray to rise and fall synchronously, and the soft medicine packages are lifted in layers by the support arm assembly fixed on the belt, thereby solving the shortcomings of the soft medicine packages such as poor stacking stability and easy tipping, poor pressure resistance and easy bursting, and the support arm assembly in the idle position can also fold itself to reduce space occupancy, and the effect of safe and ultra-high stacking of the soft medicine packages can be achieved in a room with limited area, effectively solving the problem of poor storage effect of the soft medicine packages in the existing three-dimensional medicine warehouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 Schematic diagram of the structure of intelligent storage equipment for easy material retrieval.

[0019] Figure 2 for Figure 1 Schematic diagram after removing the shell sheet metal and some repeated structures.

[0020] Figure 3 The diagram is a structural diagram of a tray, a synchronous belt and a support arm assembly supporting a medicine soft package.

[0021] Figure 4 for Figure 3 Schematic diagram of the structure after the local structure is further enlarged.

[0022] Figure 5 This is an enlarged view of the structure at A in 4.

[0023] Figure 6 It is a schematic diagram of the structure of a single support arm assembly.

[0024] Figure 7 A structural dissection diagram showing the direction of the gas path structure for the support arm assembly.

[0025] Figure 8 It is a dissected diagram of the support arm assembly and the air pipe assembly structure.

[0026] Fig. 9 This is a schematic diagram of the structure of the support arm assembly after it leaves the air pipe inflation port.

[0027] Fig.10 This is a schematic diagram of the structure of the support arm assembly when it is inflated through the air pipe inflation port.

[0028] Fig.11 For the support arm assembly Fig. 9 and Fig.10 Schematic diagram of the intermediate state structure between the two.

[0029] In the figure: 100, tray; 101, synchronous belt; 102, air pipe; 103, ball pulley one; 104, intubation tube; 105, spring one; 106, ball pulley two; 107, spring two; 108, clamping block; 109, baffle; 110, lifting bracket; 111, ball screw; 200, support arm assembly; 201, folding arm; 202, piston rod; 203, sealing ring; 204, air path; 205, arc groove; 206, metal fork; 207, tape; 208, slide groove; 209, spring three. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] Example, see Figure 1 to Figure 11 This embodiment provides an intelligent material storage device that is easy to retrieve materials. A belt and a tray 100 are set to rise and fall synchronously. The soft medicine packages are lifted in layers by the support arm assembly 200 fixed on the belt. The support arm assembly 200 in the idle position can also fold itself to reduce space occupation, so that the soft medicine packages can be safely stacked at super high height in a room with limited area. Figure 2 As shown, it includes a tray 100 arranged in a stereoscopic warehouse for lifting, a lifting bracket 110 is arranged in the middle of the stereoscopic warehouse, both ends of the lifting bracket 110 are provided with a driving ball screw 111, and two rows of trays 100 are symmetrically distributed on both sides of the lifting bracket 110, as shown in FIG. Figure 3 As shown, the bottom surface of the tray 100 is fixedly assembled with the lifting bracket 110, and both sides of the tray 100 are provided with a vertical synchronous belt 101 and a horizontal support arm assembly 200, as shown in FIG. Figure 4 As shown, the arm assemblies 200 are evenly spaced around the synchronous belt 101, and the air pipe 102 is sealed and slidably penetrated between the arm assemblies 200 located on the side of the synchronous belt 101 adjacent to the tray 100; Fig. 9 As shown, a ball pulley 103 is inserted through the gap of the top side wall of the trachea 102, and a cannula 104 is inserted through the seal, and one end of the cannula 104 is slidably sleeved with the ball pulley 103 and sealed against the inner wall of the trachea 102, and a spring 105 is sleeved between the outer wall of the cannula 104 and the inner wall of the trachea 102 to provide sealing pressure, and a ball pulley 106 is fixedly sleeved on the other end of the cannula 104, and a spring 107 is provided between the ball pulley 103 and the ball pulley 106, and the elastic force of the spring 107 is greater than that of the spring 105; Figure 6 and Figure 7As shown, the outer wall of the shell of the support arm assembly 200 is hinged with a "Y"-shaped folding arm 201, and a piston rod 202 is arranged in the shell of the support arm assembly 200 and is hinged with the end of the "Y"-shaped short side of the folding arm 201, as shown in FIG. Fig. 9 As shown, the shell is also provided with a pair of sealing rings 203 that are sealingly slidably sleeved with the outer wall of the air pipe 102, and the inner wall of the shell is provided with an air path 204 connecting the end of the piston rod 202 away from the folding arm 201 to the sealing ring 203, and the inner wall of the shell is provided with an arc groove 205 at the ball pulley 106.

[0032] Specifically, Figure 3 As shown, the pulleys at both ends of the synchronous belt 101 are rotatably connected to the frame of the stereoscopic warehouse, the bottom end of the air pipe 102 is vertically fixedly plugged into the frame of the lifting storage mechanism and connected to the compressed air source, and the top of the air pipe 102 is sealed, the height of the top of the air pipe 102 is lower than the height of the top pulley of the synchronous belt 101, and the edge of the tray 100 is located on the side of the four synchronous belts 101 connected to it, and baffles 109 are vertically arranged; Figure 6 and Figure 5 As shown, a "U"-shaped metal fork 206 is fixed to the outer wall of the shell of the support arm assembly 200, and the synchronous belt 101 and the metal fork 206 are symmetrically arranged about the two ends of the support arm assembly 200. The width of the synchronous belt 101 is greater than the length of the pulley, and the inner wall of the synchronous belt 101 beyond the pulley is matched with a tape 207, and the metal fork 206 is fixedly inserted between the tooth gap of the synchronous belt 101 and the tape 207; Figure 8 As shown, the shell of the support arm assembly 200 is located at the connection between the piston rod 202 and the folding arm 201, and a slide groove 208 is provided to match the movement stroke of the piston rod 202. The support arm assembly 200 sleeved with the air pipe 102 unfolds its folding arm 201, and after the folding arm 201 of the support arm assembly 200 is unfolded, its "Y"-shaped long side forms a horizontal angle of 45 degrees with the shell of the support arm assembly 200; Figure 4 As shown, the folding arms 201 are unfolded on both sides of the pallet 100, the long sides of the "Y" shape between the folding arms 201 are parallel to each other, and the folding arms 201 are only unfolded toward the pallet 100, and clamping blocks 108 are provided at the four corners of the bottom surface of the pallet 100, and the clamping blocks 108 are fixedly clamped with the synchronous belt 101 at the corresponding position.

[0033] The present invention provides an intelligent material storage device that is easy to retrieve materials, wherein a structure for lifting and preventing pressure layer by layer when stacking medicine soft packages on a tray 100 is mainly provided. Figure 3 and Figure 4 Obviously, the present invention unfolds a pair of folding arms 201 of the supporting arm assembly 200 above the tray 100 at a certain height, and uses the unfolded folding arms 201 to lift the soft bag.

[0034] To achieve the above-mentioned objective function, the present invention relates to the following technical details: First, regarding the unfolding and folding of the folding arm 201 of the support arm assembly 200, first refer to Figure 3 The arm assembly 200 on the synchronous belt 101 close to the tray 100 is fully unfolded, while the arm assembly 200 away from the tray 100 is fully folded. This is controlled by the air pipe 102. The arm assembly 200 needs to obtain compressed air to drive the piston rod 202 to move to open the folding arm 201. Figure 6 and Figure 7 , the air pipe 102 provides compressed air to the support arm assembly 200 through the air path 204 to push the piston rod 202 to move, and the piston rod 202 drives the folding arm 201 to unfold. When the piston rod 202 moves to the end point of the stroke, the long side of the folding arm 201 deflects forty-five degrees; The bottom of the air pipe 102 is used to connect the compressed air source, and the top of the air pipe 102 is controlled by a valve group composed of components such as a ball pulley 103 and a cannula 104 to provide compressed air to the arm assembly 200. That is, when the tray 100 drops a certain height, the tray 100 drives the synchronous belt 101 to move during the process. The synchronous belt 101 will drive a group of arm assemblies 200 located on the outside and in a folded state to move to the side of the synchronous belt 101 close to the tray 100. As the synchronous belt 101 continues to move, the arm assembly 200 moves downward, and the sealing ring 203 of the arm assembly 200 is slidably connected with the top of the air pipe 102. The inner wall of the arm assembly 200 conflicts and squeezes the ball pulley 103, thereby opening a channel to allow the compressed air in the air pipe 102 to enter the air path 204 of the arm assembly 200 to push the piston rod 202 to move, and then the folding arm 201 is unfolded to be used for lifting the medicine soft bag; After a certain number of medicine soft packs are stacked, the tray 100 is lowered again, and a new set of arm assemblies 200 will move with the synchronous belt 101 to connect with the air pipe 102 and unfold its folding arms 201, forming a new layer of support structure for stacking medicine soft packs. The arm assemblies 200 that have been unfolded in the previous step maintain internal pressure under the airtight effect of the outer wall of the air pipe 102 and the sealing ring 203, and keep the folding arms 201 unfolded (refer to Fig. 9 ); But in fact, the folding arm 201 that has stacked the medicine soft bags does not need to worry about the retraction of the folding arm 201 and the falling of the medicine soft bags due to air leakage, because the folding and recovery of the folding arm 201 is achieved by the spring three 209 inside the support arm assembly 200, and the folding arm 201 is very light, so the required design elastic force of the spring three 209 is very small. Under the squeezing pressure of the medicine soft bags on the folding arm 201, the spring three 209 cannot push the piston rod 202 to reset, and there is no problem of the folding arm 201 being retracted and the medicine soft bags falling due to air leakage. Assuming that the air tightness of the support arm assembly 200 is reduced or there is air leakage, it will not affect its use at all, including the compressed air during inflation can ignore the slight air leakage and allow the folding arm 201 to be smoothly unfolded to complete the storage of a new layer of medicine soft bags.

[0035] Secondly, regarding the air supply logic of the air valve structure at the top of the air pipe 102, there are three matching states between the housing of the support arm assembly 200 and the air valve structure: One is non-contact, including the arm assembly 200 not yet in contact with the trachea 102 and has descended along the trachea 102 and separated from the air valve structure, at which time the end of the cannula 104 is pressed against the exhaust hole on the inner wall of the trachea 102 by the spring 105, sealing the trachea 102 and stopping the supply of compressed air; The second type of support arm assembly 200 is in contact with the air valve structure, but the air outlet of the air valve has not yet been aligned with the air inlet of the air path 204 of the support arm assembly 200. Fig.11 At this time, the ball pulley 106 contacts the inner wall of the support arm assembly 200, so only the ball pulley 103 is squeezed into the cannula 104 and compresses the spring 107, the spring 105 and the cannula 104 remain in place, and the cannula 104 port still seals the trachea 102; The gas outlet of the third gas valve is aligned with the gas inlet of the gas path 204 of the support arm assembly 200 (the so-called "alignment" refers to the position of the gas valve 200). Fig.10 As shown), refer to Fig.10 At this time, relative to the second case, the ball pulley 103 is also squeezed, but the ball pulley 106 and the tube 104 obtain moving space through the arc groove 205 on the inner wall of the arm assembly 200, and the hardness of the spring 107 is greater than that of the spring 105, which makes the spring 105 compressed before the spring 107, that is, the ball pulley 103 pushes the tube 104 away from the exhaust hole on the inner wall of the trachea 102 through the spring 107 and the ball pulley 106. At this time, the compressed air enters the air path 204 of the arm assembly 200 through the gap between the exhaust hole and the ball pulley 103, and the folding arm 201 is unfolded.

[0036] Thirdly, according to the working principles described in the above “one” and “two”, it can also be easily reversed. When it is necessary to take out the medicine soft package from the three-dimensional warehouse, the tray 100 rises and the synchronous belt 101 moves, driving the support arm assembly 200 of the highest layer that has taken out the medicine soft package to separate from the air pipe 102, and the reset and folded support arm assembly 200 is transferred to the outside of the synchronous belt 101 for standby use; It should be added that the arm assembly 200 is in the inflated position at the top of the air pipe 102 during material picking and unloading. Even if the arm assembly 200 leaks after being stored for a long time and relies on the pressure of the medicine soft bags to maintain the expanded state, it will be restored to its state when it is raised to the height of the picking and unloading station and is inflated again. There will be no situation where the arm assembly 200 shrinks due to leakage as the remaining medicine soft bags become less, causing the medicine soft bags to fall.

[0037] In summary, the present invention arranges a belt and a tray 100 to rise and fall synchronously, and lifts the medicine soft packages in layers through the support arm assembly 200 fixed on the belt, thereby solving the shortcomings of the medicine soft packages such as poor stacking stability and easy tipping over, poor pressure resistance and easy bursting, and the support arm assembly 200 in the idle position can also fold itself to reduce space occupancy, thereby realizing the effect of safe and ultra-high stacking of medicine soft packages in a room with limited area, and effectively solving the problem of poor storage effect of medicine soft packages in existing medicine stereoscopic warehouses.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An intelligent material storage device that is convenient for material retrieval, characterized in that: It comprises a pallet (100) arranged in a stereoscopic warehouse for lifting, wherein both sides of the pallet (100) are provided with a vertical synchronous belt (101) and a horizontal support arm assembly (200), the support arm assemblies (200) are evenly spaced along a circle of the synchronous belt (101), and an air pipe (102) is sealed and slidably penetrated between the support arm assemblies (200) located on the side of the synchronous belt (101) adjacent to the pallet (100); A ball pulley 1 (103) is inserted through the gap of the top side wall of the trachea (102), and a cannula (104) is inserted through the seal, and one end of the cannula (104) is slidably sleeved with the ball pulley 1 (103) and seals against the inner wall of the trachea (102), and a spring 1 (105) is sleeved between the outer wall of the cannula (104) and the inner wall of the trachea (102) to provide sealing pressure, and a ball pulley 2 (106) is fixedly sleeved on the other end of the cannula (104), and a spring 2 (107) is provided between the ball pulley 1 (103) and the ball pulley 2 (106), and the elastic force of the spring 2 (107) is greater than that of the spring 1 (105); The outer wall of the shell of the support arm assembly (200) is hinged with a "Y"-shaped folding arm (201), and a piston rod (202) is arranged in the shell of the support arm assembly (200) and is hinged with the end of the "Y"-shaped short side of the folding arm (201). The shell is also provided with a pair of sealing rings (203) that are sealingly slidably sleeved with the outer wall of the air pipe (102). The inner wall of the shell is provided with an air path (204) connecting the end of the piston rod (202 away from the folding arm (201) to the sealing ring (203), and the inner wall of the shell is provided with an arc groove (205) at the second ball pulley (106).

2. The intelligent material storage device for facilitating material retrieval as claimed in claim 1, characterized in that: The pulleys at both ends of the synchronous belt (101) are rotatably connected to the frame of the stereoscopic warehouse, the bottom end of the air pipe (102) is vertically fixedly plugged into the frame of the lifting storage mechanism and connected to a compressed air source, and the top end of the air pipe (102) is sealed.

3. The intelligent material storage device for facilitating material retrieval as claimed in claim 1, characterized in that: The height of the top end of the air pipe (102) is lower than the height of the pulley at the top end of the synchronous belt (101).

4. The intelligent material storage device for facilitating material retrieval as claimed in claim 1, characterized in that: A "U"-shaped metal fork (206) is fixed to the outer wall of the shell of the support arm assembly (200); the synchronous belt (101) and the metal fork (206) are symmetrically arranged at two ends of the support arm assembly (200); the width of the synchronous belt (101) is greater than the length of the pulley; and the inner wall of the synchronous belt (101) extending beyond the pulley is matched with an adhesive tape (207); the metal fork (206) is fixedly inserted between the tooth gap of the synchronous belt (101) and the adhesive tape (207).

5. The intelligent material storage device for facilitating material retrieval as claimed in claim 1, characterized in that: The shell of the support arm assembly (200) is located at the connection between the piston rod (202) and the folding arm (201), a slide groove (208) is provided to match the movement stroke of the piston rod (202), and a spring three (209) is coaxially arranged at one end of the piston rod (202) located at the slide groove (208).

6. The intelligent material storage device for facilitating material retrieval as claimed in claim 5, characterized in that: The support arm assembly (200) sleeved with the air pipe (102) unfolds its folding arm (201), and after the folding arm (201) of the support arm assembly (200) is unfolded, its "Y"-shaped long side forms a horizontal angle of 45 degrees with the shell of the support arm assembly (200).

7. The intelligent material storage device for facilitating material retrieval as claimed in claim 6, characterized in that: The folding arms (201) are unfolded on both sides of the tray (100), the long sides of the "Y" shape between the folding arms (201) are parallel to each other, and the folding arms (201) are unfolded only in the direction of the tray (100).

8. The intelligent material storage device for facilitating material retrieval as claimed in claim 4, characterized in that: Clamping blocks (108) are provided at four corners of the bottom surface of the tray (100), and the clamping blocks (108) are fixedly clamped to the synchronous belt (101) at corresponding positions.

9. The intelligent material storage device for facilitating material retrieval as claimed in claim 8, characterized in that: Baffles (109) are vertically arranged on the edges of the tray (100) and on the sides of the four synchronous belts (101) connected thereto.

10. The intelligent material storage device for facilitating material retrieval as claimed in claim 1, characterized in that: A lifting bracket (110) is arranged in the middle of the three-dimensional warehouse, and both ends of the lifting bracket (110) are provided with ball screws (111) for driving, and two rows of trays (100) are symmetrically distributed on both sides of the lifting bracket (110), and the bottom surface of the tray (100) is fixedly assembled with the lifting bracket (110).

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