Palletized warehouse

Abstract

The application discloses a plate stereoscopic warehouse and relates to the field of wood board storage devices. The plate stereoscopic warehouse comprises a storage frame, a cargo tray and two groups of supports which are fixedly connected to the left and right sides of the storage frame respectively. A moving support plate is slidably connected to the supports, and two groups of air slots are arranged on the moving support plate. The moving support plate is used for supporting and holding the cargo tray. A pressure sensor is installed on the moving support plate. The pressure sensor is used for detecting the pressure borne by the two groups of moving support plates. A moving assembly is installed on the storage frame, and the moving assembly is used for driving the moving support plate to move. The application monitors the stress of the moving support plate through the pressure sensor, adjusts the length of the force arm by adjusting the position of the moving support plate, controls the pressure difference borne by the two groups of moving support plates within a preset threshold value, completely avoids problems such as the inclination of the supports and the deformation of the storage frame caused by the deviation of the gravity center, and prolongs the service life of the equipment.

Description

Technical Field

[0001] This invention belongs to the technical field of wood storage devices, specifically, it relates to a three-dimensional warehouse for wood panels. Background Technology

[0002] In the timber processing industry, logs are cut into timber, which is then carried on pallets and temporarily stored on automated racking systems to achieve efficient space utilization and subsequent processing.

[0003] However, when logs are cut and loaded onto cargo pallets, the cut wood has different growth patterns and uneven moisture content (e.g., the moisture content in the core is higher than that in the surface). When a large number of logs are stacked on a cargo pallet, the overall center of gravity is very likely to deviate from the center of the pallet, resulting in a center of gravity shift.

[0004] When pallets are placed on the shelf by forklift, the support is subjected to greater force on one side due to the shift in the center of gravity. Since the timber may not be used immediately after being stacked, the long-term heavy pressure on one side can easily lead to cracks in the welded joints of the support, bending and skewing of the beams, and in severe cases, even the entire shelf may tip over, causing damage to the timber and equipment safety accidents. This has certain shortcomings. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a wooden board storage device that can overcome or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: a three-dimensional warehouse for sheet metal, including storage racks, cargo pallets, and further comprising:

[0007] Two sets of brackets are fixedly connected to the left and right sides of the storage rack, respectively;

[0008] A movable support plate is slidably connected to the bracket. The movable support plate is provided with two sets of empty slots. The movable support plate is used to support and lift the cargo pallet.

[0009] A pressure sensor is installed on the movable support plate, which can detect the pressure borne by the two sets of movable support plates.

[0010] A movable component, mounted on the storage rack, is used to drive the movable support plate to move.

[0011] An auxiliary moving component is mounted on the moving support plate, the auxiliary moving component being used to reduce friction between the cargo pallet and the moving support plate;

[0012] The pressure on the movable support plate when it supports the pallet is monitored by pressure sensors. Based on the difference in values ​​between the two sets of pressure sensors, the position of the movable support plate is adjusted laterally by the movable component and the auxiliary movable component, thereby adjusting the pressure on the two sets of movable support plates.

[0013] To facilitate the movement of the movable support plate, the moving assembly further includes a servo motor, a lead screw, and a threaded sleeve. The threaded sleeve is fixedly connected to the bottom of the movable support plate, the servo motor is fixedly connected to the storage rack, and the lead screw is fixedly connected to the output end of the servo motor. The lead screw is threadedly connected to the threaded sleeve. The servo motor drives the lead screw to rotate, and the movement of the movable support plate is driven by the cooperation between the lead screw and the threaded sleeve.

[0014] To further reduce friction during the movement of the movable support plate, the auxiliary moving component includes a telescopic cylinder, a lifting plate, and a ball bearing. The two sets of lifting plates are slidably connected in two sets of empty slots. The telescopic cylinder is connected to the bottom of the movable support plate, and the telescopic end of the telescopic cylinder is fixedly connected to the lifting plate in the empty slot.

[0015] To further reduce friction, multiple sets of ball bearings are rotatably connected to the surface of the movable support plate that contacts the bracket.

[0016] Furthermore, a set of active rollers is rotatably connected inside the cargo pallet, and the timber on the cargo pallet is moved laterally by the rollers rotating at equal intervals inside the cargo pallet.

[0017] To facilitate the movement of the conveyor belt, a second servo motor is fixedly connected inside the cargo pallet, a second gear is fixedly connected to the output end of the second servo motor, and a first gear is fixedly connected to the drive roller. The first gear and the second gear are meshed together.

[0018] To prevent the gear from scratching the conveyor belt, the drive roller is further provided with a groove, and the gear is located in the groove.

[0019] To facilitate the discharge of wood chips that fall from the conveyor belt, the cargo pallet is further provided with a discharge port for discharging wood chips.

[0020] To facilitate the placement of pallets on the mobile support platform using a forklift, a baffle is fixedly connected to the back of the storage rack, and a reinforcing rib is fixedly connected to the support at an angle, with the other end of the reinforcing rib fixedly connected to the storage rack.

[0021] Furthermore, a mounting frame is fixedly connected to the bottom of the movable support plate, and the telescopic cylinder is fixedly connected to the mounting frame.

[0022] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention monitors the force on the moving support plate by a pressure sensor, and then adjusts the position of the moving support plate to adjust the length of the lever arm, thereby controlling the pressure difference on the two moving support plates within a preset threshold, completely avoiding problems such as bracket tilting and storage rack deformation caused by center of gravity shift, and extending the service life of the equipment. Attached Figure Description

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the structure of the automated warehouse for sheet metal proposed in this invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of the automated warehouse for sheet metal proposed in this invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the structure of the movable support, movable components, and cargo pallets in the automated warehouse for sheet metal proposed in this invention;

[0027] Figure 4 This is a schematic diagram of the support frame, movable support plate, pressure sensor, and movable component in the three-dimensional warehouse for sheet metal proposed in this invention.

[0028] Figure 5 This is a cross-sectional structural diagram of the support frame, movable support plate, pressure sensor, and movable component in the three-dimensional warehouse for sheet metal proposed in this invention.

[0029] Figure 6 The three-dimensional warehouse for sheet metal proposed in this invention Figure 5 A schematic diagram of the structure of part A;

[0030] Figure 7 This is a schematic diagram of the structure of the cargo pallet in the automated warehouse for sheet metal proposed in this invention;

[0031] Figure 8 This is a schematic cross-sectional view of the cargo pallet in the automated warehouse for sheet metal proposed in this invention. Figure 1 ;

[0032] Figure 9 This is a schematic cross-sectional view of the cargo pallet in the automated warehouse for sheet metal proposed in this invention. Figure 2 ;

[0033] Figure 10 The three-dimensional warehouse for sheet metal proposed in this invention Figure 9 A schematic diagram of the structure of part B.

[0034] In the diagram: 1. Storage rack; 101. Baffle; 201. Support; 202. Reinforcing rib; 3. Movable support plate; 301. Ball bearing 1; 4. Pressure sensor; 501. Telescopic cylinder; 502. Lifting plate; 503. Ball bearing 2; 504. Mounting frame; 601. Servo motor 1; 602. Lead screw; 7. Cargo pallet; 701. Slag outlet; 801. Conveyor belt; 802. Driven roller; 803. Driven roller; 804. Gear 1; 805. Gear 2; 806. Servo motor 2; 807. Groove. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] Example: Refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 The automated storage and retrieval system (AS / RS) for sheet metal includes a storage rack 1 and a cargo pallet 7. It also includes: two sets of supports 201, fixedly connected to the left and right sides of the storage rack 1 respectively; movable support plates 3, slidably connected to the supports 201, with two sets of slots on each plate, used to support and lift the cargo pallet 7; pressure sensors 4, installed on the movable support plates 3, which detect the pressure borne by the two sets of movable support plates 3; a moving assembly, installed on the storage rack 1, used to drive the movable support plates 3 to move; and an auxiliary moving assembly, installed on the movable support plates 3, used to reduce friction between the cargo pallet 7 and the movable support plates 3. By monitoring the pressure borne by the movable support plates 3 when supporting the cargo pallet 7 using the pressure sensors 4, and based on the difference in values ​​from the two sets of pressure sensors 4, the moving assembly and the auxiliary moving assembly are used to laterally adjust the position of the movable support plates 3, bringing the pressure borne by the two sets of movable support plates 3 closer together.

[0037] When using this device, a forklift is used to place the pallet 7 loaded with sheet metal horizontally on the movable support plate 3. The support beam at the bottom of the pallet 7 will be in close contact with the pressure sensor 4 on the surface of the movable support plate 3. At this time, the movable support plate 3 supports the total weight of the pallet 7 through the bracket 201. The pressure sensor 4 collects the pressure values ​​on the left and right sides of the movable support plate 3 in real time and transmits them to the control system.

[0038] If the two pressure values ​​are close or equal, it means that the center of gravity is close to the middle, and no adjustment is needed.

[0039] If different pressure values ​​occur, such as the left being heavier than the right, it indicates that the center of gravity of the cargo pallet 7 is biased to the left, i.e., Fleft > Fright. At this time, according to the lever balance principle, Fleft multiplied by Lleft equals Fright multiplied by Lright, where Lleft and Lright are the horizontal distances (i.e., lever arms) from the "pressure application point" to the central axis of the storage rack 1. When the center of gravity is biased to the left, Lleft < Lright (because the pressure on the left side is closer to the center). At this time, it is necessary to increase the right lever arm Lright or decrease the left lever arm Lleft, and adjust the position of the moving support plate 3 to correct the lever arm length. At this time, the moving component is activated by the control system, thereby realizing the overall rightward translation of the lower moving support plate 3 until the adjusted Fleft multiplied by Lleft equals Fright multiplied by Lright.

[0040] Furthermore, the pressure sensor 4 monitors in real time. Due to environmental factors, the wood may absorb moisture from the air. If the wood is not used for a long time, the movable support plate 3 may need to be moved to adjust the center of gravity and increase the service life of the shelf.

[0041] When necessary, a camera can be fixedly connected to the side of the cargo pallet 7, hidden inside the frame side beam, to capture real-time images of the cargo surface and monitor the positional offset of the wood through image recognition algorithms; or a tilt sensor (MEMS model, 0.1° accuracy) can be fixedly connected to the bottom of the pallet to detect the tilt angle of the wood's center of gravity and prevent the cargo from falling due to excessive offset.

[0042] Specifically, such as Figure 3 , Figure 4 , Figure 5 As shown, the moving component includes a servo motor 601, a lead screw 602, and a threaded sleeve. The threaded sleeve is fixedly connected to the bottom of the moving support plate 3. The servo motor 601 is fixedly connected to the storage rack 1. The servo motor 601 is a high-precision speed-regulating motor (the speed range can be controlled by a program). The lead screw 602 is fixedly connected to the output end of the servo motor 601. The lead screw 602 is threadedly connected to the threaded sleeve. The servo motor 601 drives the lead screw 602 to rotate, and then the movement of the moving support plate 3 is driven by the cooperation of the lead screw 602 and the threaded sleeve.

[0043] In practical use, when the pressure sensor 4 detects that Fleft > Fright, the control system sends a command to the servo motor 601. The servo motor 601 rotates, driving the lead screw 602 to rotate synchronously. The threaded sleeve at the bottom of the left movable support plate 3 is threadedly connected to the lead screw 602 and moves along the axial direction of the lead screw 602, ensuring that the adjustment speed of the movable support plate 3 is ≤50mm / s. This satisfies the pressure balance efficiency and avoids the cargo pallet 7 from shaking due to excessive movement. The movable support plate 3 slides to the right along the bracket 201 with the threaded sleeve until Fleft drops to be equal to Fright. The error is ≤50N, which can be ignored. The servo motor 601 stops, completing the position adjustment of the movable support plate 3.

[0044] Thanks to the self-locking characteristic of the screw drive, the ball screw has a small backlash, ensuring that the position of the moving support plate 3 is stable after adjustment and avoiding secondary displacement due to load fluctuations.

[0045] Furthermore, such as Figure 4 , Figure 5 , Figure 6 As shown, the auxiliary moving component includes a telescopic cylinder 501, a lifting plate 502, and ball bearings 503. Two sets of lifting plates 502 are slidably connected in two sets of empty slots. The telescopic cylinder 501 is fixedly connected to the bottom of the moving support plate 3. The telescopic end of the telescopic cylinder 501 is fixedly connected to the lifting plate 502 in the empty slot. Multiple sets of ball bearings 503 are rotatably connected in the lifting plate 502. Through the ball bearings 503 on the lifting plate 502, the moving support plate 3 is slowly lifted, which can reduce the friction generated by the movement of the moving support plate 3.

[0046] When the moving component drives the moving support plate 3 to slide, the auxiliary moving component moves synchronously to reduce friction. The control system sends a command to the telescopic cylinder 501, the telescopic end extends, and pushes the lifting plate 502 to slide upward along the slot. When the lifting plate 502 rises to the highest point, the second ball 503 fully contacts the upper surface of the bracket 201, converting the sliding friction between the moving support plate 3 and the bracket 201 into the rolling friction of the second ball 503. When the moving component drives the moving support plate 3 to slide, the second ball 503 rolls synchronously with the lifting plate 502, significantly reducing the moving resistance. After the movement is completed, the telescopic cylinder 501 retracts, the lifting plate 502 falls back to the initial position, the second ball 503 disengages from the bracket 201, and the moving support plate 3 falls back to the bracket 201 and contacts the pressure sensor 4.

[0047] Multiple sets of ball bearings 301 are rotatably connected to the surface of the movable support plate 3 in contact with the bracket 201.

[0048] During the sliding process of the movable support plate 3 along the bracket 201, the first ball 301 is always in contact with the bracket 201. When the auxiliary moving component is started, the first ball 301 and the second ball 503 work together to further reduce frictional resistance and ensure smooth movement.

[0049] Another implementation, such as Figure 8 , Figure 9 , Figure 10 As shown, a set of drive rollers 802 are rotatably connected inside the cargo pallet 7, and multiple sets of driven rollers 803 are rotatably connected at equal intervals inside the cargo pallet 7. A conveyor belt 801 is sleeved on the drive rollers 802 and the driven rollers 803. The conveyor belt 801 is used to move the wood on the cargo pallet 7 laterally.

[0050] When the pressure sensor 4 detects the pressure difference on the moving support plate 3 and determines that there is adjustable space on the pallet, the system starts the conveyor belt 801 of the pallet 7 to assist in adjusting the center of gravity of the goods. For example, when the left side is heavier than the right side, the conveyor belt 801 is started to move the goods to the right. Since the wood is placed on the conveyor belt 801, it moves slowly laterally to the lighter side on the right side with the belt.

[0051] During the movement, data is transmitted in real time through pressure sensor 4. If the pressure difference is reduced to close to the threshold of 50N, the conveyor belt 801 is stopped to complete the initial auxiliary adjustment of the center of gravity of the goods. If the movement limit is reached and continuing to move will cause the stacked wood to fall, the subsequent adjustment is carried out by moving support plate 3.

[0052] Furthermore, such as Figure 8 , Figure 9 , Figure 10 As shown, a servo motor 806 is fixedly connected inside the cargo pallet 7. A gear 805 is fixedly connected to the output end of the servo motor 806. A gear 804 is fixedly connected to the drive roller 802. The gear 804 and the gear 805 are meshed together.

[0053] When servo motor 2 806 starts, its output drives gear component 2 805 to rotate. Through gear meshing, it drives gear component 1 804 on the drive roller 802, causing the drive roller 802 to rotate. Based on the degree of offset of left-heavy and right-light, the number of rotations of servo motor 2 806 is controlled to precisely adjust the movement distance of the goods on the pallet.

[0054] The drive roller 802 is provided with a groove 807, the gear component 804 is located in the groove 807, and the cargo pallet 7 is provided with a slag outlet 701 for discharging wood chips.

[0055] The groove 807 of the drive roller 802 accommodates the gear component 804, preventing the gear from scratching the conveyor belt 801 and ensuring stable conveying. Wood chips that fall during the movement of the wood are discharged through the chip outlet 701 of the cargo pallet 7, keeping the pallet clean and preventing wood chips from accumulating and affecting the accuracy of subsequent pressure testing and adjustment.

[0056] Preferred, such as Figure 1 , Figure 2 As shown, a baffle 101 is fixedly connected to the back of the storage rack 1, and a reinforcing rib 202 is fixedly connected to the support 201 at an angle. The other end of the reinforcing rib 202 is fixedly connected to the storage rack 1. A mounting frame 504 is fixedly connected to the bottom of the movable support plate 3, and a telescopic cylinder 501 is fixedly connected to the mounting frame 504.

[0057] A baffle 101 is installed on the back of the storage rack 1 to prevent the cargo pallet 7 from accidentally slipping off, especially during operations such as adjusting the movable support plate 3 and transferring cargo pallets 7, to prevent pallets and goods from falling off and ensure operational safety. A reinforcing rib 202 is installed at an angle between the support 201 and the storage rack 1. Through the principle of triangular support, the support 201 is enhanced to improve its resistance to deformation. When adjusting the movable support plate 3, such as when dealing with the shift of the center of gravity of different goods and repeated movement, the reinforcing rib 202 can effectively disperse the pressure, reduce the risk of bending and deformation of the support 201, and maintain the stability of the system structure. The bottom of the movable support plate 3 is fixed to the mounting frame 504, and the telescopic cylinder 501 is fixed to the mounting frame 504 with bolts to ensure the relative position stability of the auxiliary moving component and the movable support plate 3.

[0058] This invention monitors the force on the movable support plate 3 in real time through the pressure sensor 4, and then adjusts the position of the movable support plate 3 to adjust the length of the lever arm, thereby controlling the pressure difference on the two movable support plates 3 within a preset threshold, completely avoiding problems such as the bracket 201 tilting and the storage rack 1 deforming due to the shift of the center of gravity, and extending the service life of the equipment.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A three-dimensional warehouse for sheet metal, comprising storage racks (1) and cargo pallets (7), characterized in that, Also includes: Two sets of brackets (201) are fixedly connected to the left and right sides of the storage rack (1), respectively; The movable support plate (3) is slidably connected to the bracket (201). The movable support plate (3) is provided with two sets of empty slots. The movable support plate (3) is used to support and lift the cargo pallet (7). A pressure sensor (4) is installed on the movable support plate (3). The pressure sensor (4) can detect the pressure borne by the two sets of movable support plates (3). A movable component is installed on the storage rack (1), and the movable component is used to drive the movable support plate (3) to move; An auxiliary moving component is installed on the moving support plate (3) to reduce friction between the cargo pallet (7) and the moving support plate (3); The pressure on the movable support plate (3) when it receives the cargo pallet (7) is monitored by the pressure sensor (4). Based on the difference in values ​​of the two sets of pressure sensors (4), the position of the movable support plate (3) is adjusted laterally by the movable component and the auxiliary movable component, thereby adjusting the pressure on the two sets of movable support plates (3). The moving component includes a servo motor (601), a lead screw (602), and a threaded sleeve. The threaded sleeve is fixedly connected to the bottom of the moving support plate (3). The servo motor (601) is fixedly connected to the storage rack (1). The lead screw (602) is fixedly connected to the output end of the servo motor (601). The lead screw (602) is threadedly connected to the threaded sleeve. The servo motor (601) drives the lead screw (602) to rotate, and then the moving support plate (3) is driven to move through the cooperation between the lead screw (602) and the threaded sleeve. The auxiliary moving component includes a telescopic cylinder (501), a lifting plate (502), and ball bearings (503). The two sets of lifting plates (502) are slidably connected in two sets of empty slots. The telescopic cylinder (501) is connected to the bottom of the moving support plate (3). The telescopic end of the telescopic cylinder (501) is fixedly connected to the lifting plate (502) in the empty slot. Multiple sets of ball bearings (503) are rotatably connected in the lifting plate (502). The telescopic cylinder (501) can make the lifting plate (502) move upward, and then the ball bearings (503) slowly lift the cargo pallet (7). The rolling of the ball bearings (503) facilitates the lateral movement of the moving support plate (3) under the cargo pallet (7). A set of active rollers (802) are rotatably connected inside the cargo pallet (7), and multiple sets of driven rollers (803) are rotatably connected at equal intervals inside the cargo pallet (7). A conveyor belt (801) is sleeved on the active rollers (802) and the driven rollers (803), and the conveyor belt (801) is used to move the wood on the cargo pallet (7) laterally.

2. The automated warehouse for sheet metal as described in claim 1, characterized in that, Multiple sets of ball bearings (301) are rotatably connected to the surface of the movable support plate (3) in contact with the bracket (201).

3. The automated warehouse for sheet metal as described in claim 1, characterized in that, A servo motor 2 (806) is fixedly connected inside the cargo pallet (7). A gear component 2 (805) is fixedly connected to the output end of the servo motor 2 (806). A gear component 1 (804) is fixedly connected to the drive roller (802). The gear component 1 (804) and the gear component 2 (805) are meshed together.

4. The automated warehouse for sheet metal as described in claim 3, characterized in that, The drive roller (802) is provided with a groove (807), and the gear component (804) is located in the groove (807).

5. The automated warehouse for sheet metal as described in claim 1, characterized in that, The cargo pallet (7) is provided with a slag outlet (701) for discharging wood chips.

6. The automated warehouse for sheet metal as described in claim 1, characterized in that, A baffle (101) is fixedly connected to the back of the storage rack (1), and a reinforcing rib (202) is fixedly connected to the support (201) at an angle. The other end of the reinforcing rib (202) is fixedly connected to the storage rack (1).

7. The automated warehouse for sheet metal as described in claim 1, characterized in that, The bottom of the movable support plate (3) is fixedly connected to the mounting frame (504), and the telescopic cylinder (501) is fixedly connected to the mounting frame (504).

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