Lifting frame for warehousing and transferring

Abstract

The invention relates to the technical field of warehouse transfer lifting frames, in particular to a warehouse transfer lifting frame which comprises a driving support used for driving two mounting plates to ascend and descend, a placing plate mounted between the two mounting plates, and a fixing mechanism and a gravity center adjusting mechanism which are mounted on the two sides of the placing plate. The fixing mechanism is used for fixing and clamping goods, and the gravity center adjusting mechanism is used for guaranteeing that the gravity center position of the lifting frame does not change too much. Goods are fixed and clamped through a first clamping plate and a second clamping plate in the fixing mechanism, the stability of the goods on the placing plate is guaranteed, the height specification of the goods is determined through the cooperation effect between a light emitter and a light receiver, the height position of the second clamping plate is adjusted through an air cylinder, and the goods can be conveniently placed on the placing plate. And the contact area between the fixing mechanism and the goods is increased, and the goods fixing effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of storage transfer lifting frames, and particularly to a lifting frame for storage transfer. Background Art

[0002] Warehouse logistics utilizes self-built or leased warehouses, sites for storing, preserving, loading, unloading, handling, and distributing goods. Warehousing is the inventory control center in logistics and the supply chain, and a lifting frame is needed to assist in the handling of goods during the loading and unloading process.

[0003] The existing lifting frames for storage transfer have the following problems in actual use: First, in the current logistics system, standardized rectangular packaging boxes are the mainstream storage and transportation carriers. In the operation process, it is necessary to rely on manual labor to transfer goods to the loading platform of the lifting frame. This method not only has a large labor intensity, but also due to the lack of an automated positioning device in the operation process, the operation efficiency is limited. When the loading platform performs displacement operations in the vertical direction, since the loading interface is not equipped with a modular cargo fixing device, when the equipment is subjected to a lateral impact load or vibration interference, the static friction force between the goods and the loading surface is not sufficient to maintain a stable state, resulting in the risk of goods slipping or even falling. Second, there are many types of goods in warehouse logistics. For goods of the same specification and size, due to different densities, their weights are also different. Therefore, there are differences in the mass distribution of the goods stored in the standardized rectangular packaging boxes of the same specification and size. Moreover, the batches of goods arriving at the warehouse are not sorted in a fixed order, so the quality of goods in different batches is uncertain, resulting in non-regular changes in the center of gravity offset of the lifting frame. This dynamic mass distribution poses a severe challenge to the structural stability of the lifting frame. Engineering mechanics analysis shows that when the center of gravity offset exceeds the preset safety threshold, the static equilibrium state of the lifting frame will be destroyed, generating an overturning moment and sharply reducing the anti-interference ability, and ultimately may trigger a major safety accident of the overall overturning of the lifting frame. This systematic risk of multi-parameter coupling not only threatens the safety of operators, but also poses a severe test to the reliability of the logistics system. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the stability of the lifting frame decreases due to the change of its own center of gravity during the loading and unloading of goods in the prior art, and to propose a lifting frame for storage transfer.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A lifting frame for storage transfer, the lifting frame comprising: A driving bracket for driving two mounting plates to lift; A placing plate installed between the two mounting plates and used for placing goods; Fixing mechanisms and center-of-gravity adjusting mechanisms installed on both sides of the placement board; A driving mechanism installed on the placement board, and the driving mechanism ensures the stability of the lifting frame during operation by controlling the fixing mechanism and the center-of-gravity adjusting mechanism to perform synchronous reverse horizontal displacement.

[0006] Preferably, the fixing mechanism includes: A guiding frame fixed on the placement board; A movable rod movably sleeved on the guiding frame; A connecting plate fixed to one end of the movable rod; A mounting frame fixed on the connecting plate; A mounting cavity and two sliding cavities formed on the mounting frame; Sliding plates sliding in the sliding cavities and having the same number as the sliding cavities; First clamping plates fixed on the sliding plates and having the same number as the sliding plates; A resisting plate fixed on the mounting frame; A second motor installed in the mounting cavity; Two third lead screws driven by the second motor and rotatably installed in the mounting cavity; Second moving sliders fixed to the bottom ends of the sliding plates and installed on the third lead screws; Mounting grooves formed on the first clamping plates and having the same number as the first clamping plates; Cylinders fixed in the mounting grooves and having the same number as the mounting grooves; Second clamping plates sliding on the tops of the first clamping plates and driven by the cylinders, and the first clamping plates and the second clamping plates have the same number.

[0007] Preferably, a light emitter is fixedly installed on one of the second clamping plates, and a light receiver is fixedly installed on the other second clamping plate, and the light receiver is electrically connected to the cylinder.

[0008] Preferably, stress rods are movably sleeved on both the first clamping plates and the second clamping plates, guiding slide rails are fixedly arranged on the first clamping plates and the second clamping plates, and guiding sliders are slidably sleeved on the guiding slide rails; A traction rod is pin-connected between the stress rod and the guiding slider, and an L-shaped support plate is fixedly connected to the guiding slider.

[0009] Preferably, the center-of-gravity adjusting mechanism includes: A counterweight plate placed on the mounting board and slidably connected to the mounting board; A placement rack fixed on the driving bracket; The counterweight plates placed in the placement rack; The connecting brackets fixedly connected to the bottom end of the counterweight plate and located on both sides of the opening of the placement rack; The first limiting holes opened in the counterweight plates; The second limiting holes opened in the connecting brackets, and the second limiting holes are composed of the intersection of a rectangular hole and a circular hole; The limiting rods sliding in the first limiting holes and the second limiting holes in a horizontally aligned state, and rectangular plates corresponding to the rectangular holes are fixedly arranged at both ends of the limiting rods.

[0010] Preferably, guiding long holes are opened in the counterweight plates, and guiding columns are fixedly connected to the connecting brackets.

[0011] Preferably, the driving mechanism includes: A third motor fixedly installed on the mounting plate; A driving gear fixedly sleeved on the output end of the third motor; A first driven rack meshed with the driving gear, and the first driven rack is fixedly connected to the connecting plate; A second driven rack meshed with the driving gear, and the second driven rack is fixedly connected to the counterweight plate, and the first driven rack and the second driven rack are arranged in a staggered manner.

[0012] Preferably, the first driven rack and the second driven rack are slidably sleeved on the mounting plate.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention fixes and clamps the goods through the first clamping plate and the second clamping plate in the fixing mechanism, which helps to ensure the stability of the goods on the placement plate. The cooperation between the light emitter and the light receiver is used to determine the height specification of the goods, and the height position of the second clamping plate is adjusted by the air cylinder, which helps to increase the contact area between the fixing mechanism and the goods and further improve the fixing effect on the goods.

[0014] 2. When the goods are received in the fixing station formed by the first clamping plate and the second clamping plate, the goods contact the force receiving rod and cause extrusion to it. The force receiving rod controls the horizontal movement of the guiding slider and the L-shaped supporting plate through the traction rod, and controls the L-shaped supporting plate to abut against one side of the goods. At this time, the first clamping plate and the second clamping plate on both sides of the goods synchronously complete the positioning and calibration, and at the same time, the L-shaped supporting plate and the goods form a vector balance system of spatial orthogonality, which helps to ensure the spatial pose stability of the goods during the movement process.

[0015] 3. The present invention realizes the precise synchronization of the motion states of the fixing mechanism and the center-of-gravity adjustment mechanism through the driving mechanism, enabling the center-of-gravity adjustment mechanism to compensate in real time for the torque changes generated when the fixing mechanism clamps the goods, thereby effectively suppressing the phenomenon of center-of-gravity offset of the lifting frame and ensuring the accuracy and safety performance of the running track of the lifting frame.

[0016] 4. In the present invention, a number of counterweight plates are provided to match goods of different batches and different masses. The counterweight plates are laterally limited by guide columns and longitudinally limited by limit rods, which helps to ensure the stability of the counterweight plates during the movement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a lifting frame for warehousing transfer proposed by the present invention; Figure 2 is a schematic structural diagram of a driving bracket of a lifting frame for warehousing transfer proposed by the present invention; Figure 3 is a schematic connection structural diagram of a fixing mechanism, a center-of-gravity adjustment mechanism and a driving mechanism of a lifting frame for warehousing transfer proposed by the present invention; Figure 4 is a schematic structural diagram of a fixing mechanism of a lifting frame for warehousing transfer proposed by the present invention; Figure 5 For the present invention Figure 4 is a schematic structural diagram from another angle; Figure 6 For the present invention Figure 4 is a lower cross-sectional view; Figure 7 is a schematic structural diagram of a center-of-gravity adjustment mechanism of a lifting frame for warehousing transfer proposed by the present invention; Figure 8 For the present invention Figure 7 is a cross-sectional view.

[0018] In the figure: 1. mounting plate; 2. driving bracket; 201. bottom plate; 202. guide rod; 203. top plate; 204. motor bracket; 205. first motor; 206. first lead screw; 207. second lead screw; 208. first moving slider; 3. placing plate; 4. Fixing mechanism; 401. Guide frame; 402. Movable rod; 403. Connecting plate; 404. Mounting frame; 405. Mounting cavity; 406. Sliding cavity; 407. Sliding plate; 408. First clamping plate; 409. Contact plate; 410. Second motor; 411. Third lead screw; 412. Second moving slider; 413. Mounting groove; 414. Cylinder; 415. Second clamping plate; 416. Light emitter; 417. Light receiver; 418. Stress rod; 419. Guide slide rail; 420. Guide slider; 421. Traction rod; 422. L-shaped support plate 5. Center of gravity adjustment mechanism; 501. Counterweight plate; 502. Placing rack; 503. Counterweight piece; 504. Connecting bracket; 505. First limiting hole; 506. Second limiting hole; 507. Limiting rod; 508. Guide long hole; 509. Guide post 6. Driving mechanism; 601. Third motor; 602. Driving gear; 603. First driven rack; 604. Second driven rack Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Refer to Figures 1-8 , a lifting frame for warehousing transfer, the lifting frame includes: a driving bracket 2 for driving two mounting plates 1 to lift, and a placing plate 3 installed between the two mounting plates 1 and used for placing goods. It should be noted that: the goods are packaged in standardized rectangular packaging boxes with unified specifications and dimensions, and the standardized rectangular packaging boxes of the same batch have the same weight because the internal goods are the same.

[0021] Among them, the driving bracket 2 includes a bottom plate 201, a guide rod 202, a top plate 203, a motor bracket 204, a first motor 205, a first lead screw 206, a second lead screw 207 and two first moving sliders 208. The components are arranged as follows: Self-locking universal wheels are provided on both sides of the bottom plate 201, which helps to improve the flexibility of the driving bracket 2. The guide rod 202 for guiding and limiting the mounting plate 1 is fixedly connected to the bottom plate 201. The top plate 203 is fixedly connected to the upper end of the guide rod 202. The motor bracket 204 is fixedly connected to the top plate 203, and the motor bracket 204 is of a gantry structure. The first motor 205 is fixedly installed on the motor bracket 204. The first lead screw 206 and the second lead screw 207 driven by the first motor 205 are rotatably installed on the bottom plate 201 and the top plate 203. It should be noted that: the first lead screw 206 and the second lead screw 207 are trapezoidal lead screws, and the trapezoidal lead screws have good self-locking properties, which helps to improve the stability when the driving bracket 2 drives the mounting plate 1 to perform vertical lifting. A synchronous belt structure is provided between the first lead screw 206 and the second lead screw 207, so that when the first lead screw 206 is driven by the first motor 205 to rotate, it will drive the second lead screw 207 to rotate. Two first moving sliders 208 respectively embedded in the two mounting plates 1 are respectively installed on the first lead screw 206 and the second lead screw 207. Nuts matching the first lead screw 206 and the second lead screw 207 are embedded in the first moving sliders 208. The mounting plate 1 is guided and limited by the guide rod 202, so that the mounting plate 1 can only perform linear motion in the vertical direction, thereby preventing the first moving slider 208 fixedly connected to the mounting plate 1 from rotating, and further ensuring the stability when the driving bracket 2 drives the mounting plate 1 to perform vertical lifting.

[0022] Based on the setting of the placement plate 3, in order to ensure the stability of the goods on the placement plate 3 during loading and unloading, so as to prevent the goods from falling during the loading and unloading process, the specific implementation method is as follows: A fixing mechanism 4 is installed on the placement plate 3, and the fixing mechanism 4 is used for fixedly clamping the goods.

[0023] The fixing mechanism 4 includes a guide frame 401, a movable rod 402, a connecting plate 403, a mounting frame 404, a mounting cavity 405, two sliding cavities 406, two sliding plates 407, two first clamping plates 408, a resisting plate 409, a second motor 410, two third lead screws 411, two second moving sliders 412, two mounting grooves 413, two air cylinders 414, two second clamping plates 415, a light emitter 416 and a light receiver 417. The settings of each component are as follows: The guide frame 401 is fixedly installed on the placement plate 3. The movable rod 402 is movably sleeved on the guide frame 401. A limiting ring that is movably abutted against the guide frame 401 is fixedly connected to one end of the movable rod 402. The connecting plate 403 is fixedly connected to one end of the movable rod 402. The movable rod 402 is guided and limited by the guide frame 401, thereby ensuring the stability of the connecting plate 403 fixedly connected to one end of the movable rod 402 during movement.

[0024] The mounting bracket 404 is fixedly connected to the connecting plate 403, and the mounting bracket 404 is in a U-shaped structure. The mounting cavity 405 is formed in the mounting bracket 404. Two sliding cavities 406 are formed at both sides of the mounting bracket 404. Two sliding plates 407 are respectively slidably sleeved in the two sliding cavities 406. The two sliding plates 407 are guided and limited by the sliding cavities 406, so that the two sliding plates 407 can only perform linear motion in the horizontal direction.

[0025] Two first clamping plates 408 for fixedly clamping the goods are respectively fixedly connected to the two sliding plates 407. A guiding rectangular groove is formed in the first clamping plate 408. The abutting plate 409 is fixedly connected to the mounting bracket 404. The second motor 410 is fixedly installed in the mounting cavity 405. Two third lead screws 411 driven by the second motor 410 are rotatably installed in the mounting cavity 405. The second moving slider 412 fixedly connected to the sliding plate 407 is arranged on the third lead screw 411. A nut matched with the third lead screw 411 is embedded in the second moving slider 412. It should be noted that: the second motor 410 is a motor with double output ends. The third lead screw 411 and the second moving slider 412 are used to drive the sliding plate 407 to move towards each other, so as to drive the first clamping plate 408 to clamp and limit the goods through the sliding plate 407, which helps to ensure the stability of the goods on the placing plate 3.

[0026] Two mounting grooves 413 are respectively formed in the two first clamping plates 408. Two air cylinders 414 are respectively fixedly installed in the two mounting grooves 413. Two second clamping plates 415 driven by the air cylinders 414 are slidably sleeved on the first clamping plates 408. A guiding square column extending into the guiding rectangular groove is fixedly connected to the bottom end of the second clamping plate 415. The guiding square column is guided and limited by the guiding rectangular groove, which helps to ensure that the second clamping plate 415 is still on the same horizontal plane as the first clamping plate 408 after movement. The light emitter 416 is fixedly installed on one of the second clamping plates 415. The light receiver 417 is fixedly installed on the other second clamping plate 415. The light receiver 417 is electrically connected to the air cylinder 414. It should be noted that: after the air cylinder 414 is started, the air cylinder 414 can only be stopped after the light emitted by the light emitter 416 is received by the light receiver 417. Then, the air cylinder 414 drives the second clamping plate 415 to adjust the height, which helps to increase the contact area between the fixing mechanism 4 and the left and right sides of the goods, and further improves the fixing effect when the fixing mechanism 4 fixes the goods.

[0027] Based on the settings of the first clamping plate 408 and the second clamping plate 415, in order to further ensure the stability of the goods after being clamped, the fixing mechanism 4 further includes at least four stress rods 418, a guiding slide rail 419, a guiding slider 420, a traction rod 421 and an L-shaped support plate 422. The components are arranged as follows: At least four stress rods 418 are movably sleeved on the first clamping plate 408 and the second clamping plate 415. It should be noted that in order to ensure the reset of the stress rod 418 when not affected by external forces, springs for reset are provided between the outer wall of the stress rod 418 and the first clamping plate 408 and between the outer wall of the stress rod 418 and the second clamping plate 415. The guiding slide rails 419 corresponding to the stress rods 418 are fixedly arranged on the first clamping plate 408 and the second clamping plate 415. The guiding sliders 420 are slidably sleeved on the guiding slide rails 419. The guiding of the guiding sliders 420 by the guiding slide rails 419 helps to ensure the stability of the guiding sliders 420 during movement. Both ends of the traction rod 421 are pin-connected to the stress rod 418 and the guiding slider 420 respectively. The L-shaped support plate 422 is fixedly connected to the guiding slider 420. The traction rod 421 drives the L-shaped support plate 422 to move horizontally through the guiding slider 420, so as to cooperate with the abutting plate 409 to abut and limit the front and rear sides of the goods, which helps to improve the fixing effect of the fixing mechanism 4.

[0028] Based on the settings of the fixing mechanism 4 and the placement plate 3, in order to ensure the relative stability of the center of gravity position of the lifting frame during operation, a center of gravity adjustment mechanism 5 installed on the placement plate 3 and a driving mechanism 6 installed on one side of the placement plate 3 are introduced. The center of gravity adjustment mechanism 5 is used to ensure that the center of gravity position of the lifting frame does not change too much, and the driving mechanism 6 is used to drive the fixing mechanism 4 and the center of gravity adjustment mechanism 5 to move horizontally towards each other or horizontally away from each other; The center of gravity adjustment mechanism 5 includes a counterweight plate 501, a placement rack 502, counterweight pieces 503, two connecting brackets 504, a first limiting hole 505, a second limiting hole 506 and a limiting rod 507. The settings of each component are as follows: The counterweight plate 501 is placed on the mounting plate 1, and one side of the counterweight plate 501 is slidably connected to the same side of the mounting plate 1. The placement rack 502 is fixedly connected to the driving bracket 2. Specifically, the placement rack 502 is fixedly connected to the bottom plate 201, and the placement rack 502 is of a gantry structure. The counterweight pieces 503 are placed in the placement rack 502. It should be noted that the packaging boxes of the goods have the same specifications, but the weights of the goods in the packaging boxes are different. Different numbers of counterweight pieces 503 are selected to match different weights of the goods. Two symmetrically arranged connecting brackets 504 are fixedly connected to the bottom end position of the counterweight plate 501, and the two connecting brackets 504 are respectively located on both sides of the opening of the placement rack 502.

[0029] The first limiting hole 505 is formed on the counterweight piece 503, and the second limiting hole 506 is formed on the connecting bracket 504. The second limiting hole 506 is composed of the intersection of a rectangular hole and a circular hole. The limiting rod 507 is slidably sleeved in the first limiting hole 505 and the second limiting hole 506. Rectangular plates corresponding to the rectangular holes are fixedly arranged at both ends of the limiting rod 507. It should be noted that when the limiting rod 507 enters the first limiting hole 505 and the second limiting hole 506, the rectangular plates are in a horizontal state, and when the limiting rod 507 enters the first limiting hole 505 and the second limiting hole 506, the rectangular plates are in a vertical state, so as to prevent the limiting rod 507 from separating from the first limiting hole 505 and the second limiting hole 506 due to inertia after entering the first limiting hole 505 and the second limiting hole 506. The stability between the counterweight piece 503 and the connecting bracket 504 is ensured through the limiting rod 507, the first limiting hole 505 and the second limiting hole 506, so that when the connecting bracket 504 moves upward, the same number of counterweight pieces 503 will also move upward synchronously.

[0030] Based on the settings of the connecting bracket 504 and the counterweight piece 503, in order to ensure the stability of the counterweight piece 503 when rising vertically with the connecting bracket 504, the center of gravity adjusting mechanism 5 further includes a guiding long hole 508 and a guiding column 509, and the components are arranged as follows: The guiding long hole 508 is formed on the counterweight piece 503, and the guiding column 509 is fixedly connected to the connecting bracket 504. The counterweight piece 503 is laterally limited by the guiding column 509 and the guiding long hole 508, so as to ensure the stability of the counterweight piece 503 when lifting and lowering.

[0031] The driving mechanism 6 includes a third motor 601, a driving gear 602, a first driven rack 603 and a second driven rack 604, and the components are arranged as follows: The third motor 601 is fixedly installed on the mounting plate 1, the driving gear 602 is fixedly sleeved on the output end of the third motor 601. The first driven rack 603 meshed with the driving gear 602 is fixedly connected to the connecting plate 403, and the second driven rack 604 meshed with the driving gear 602 is fixedly connected to the counterweight plate 501. The first driven rack 603 and the second driven rack 604 are arranged in a staggered manner. The first driven rack 603 and the second driven rack 604 are slidably sleeved on the inner side of the mounting plate 1. The driving gear 602 is used to drive the first driven rack 603 and the second driven rack 604 to perform synchronous movement in opposite directions or synchronous movement in opposite directions, so that when the fixing mechanism 4 and the center of gravity adjusting mechanism 5 are driven by the driving mechanism 6, they will perform synchronous movement in opposite directions or synchronous movement in opposite directions. The moment change generated when the fixing mechanism clamps the goods is compensated in real time through the counterweight piece 503, thereby effectively suppressing the phenomenon of the center of gravity offset of the lifting frame.

[0032] The functional principle of the present invention can be described through the following operation methods: Step S1, select a corresponding number of counterweight plates 503 according to the weight of the goods, rotate the limit rod 507 to a horizontal state, insert the limit rod 507 into the first limit hole 505 and the second limit hole 506, rotate the limit rod 507 so that the limit rod 507 is in a vertical state, start the first motor 205, the first motor 205 drives the first lead screw 206 to rotate, the first lead screw 206 drives the second lead screw 207 to rotate through the synchronous belt structure, so that the first movable slider 208 moves vertically upward on the second lead screw 207, the first movable slider 208 drives the mounting plate 1 to move vertically upward, the mounting plate 1 drives the placement plate 3, the fixing mechanism 4, the center of gravity adjustment mechanism 5 and the driving mechanism 6 to move vertically upward, so that the guide column 509 is separated from the guide long hole 508; Step S2, start the third motor 601, the third motor 601 drives the driving gear 602 to rotate counterclockwise, the driving gear 602 drives the first driven rack 603 and the second driven rack 604 to move in opposite directions, the first driven rack 603 drives the connecting plate 403 to move horizontally, the connecting plate 403 drives the movable rod 402 to move horizontally on the guide frame 401, the connecting plate 403 drives the mounting frame 404 to move horizontally, at this time the mounting frame 404 moves to the positions on both sides of the cargo, and the rear side of the cargo is movably against the abutment plate 409, the second driven rack 604 drives the counterweight plate 501 to move horizontally, the counterweight plate 501 drives the connecting bracket 504 to move horizontally, the connecting bracket 504 drives the counterweight plate 503 to move horizontally through the limiting rod 507, and guides and limits the counterweight plate 503 through the guide column 509; Step S3, start the light emitter 416 and the cylinder 414. Since the cargo blocks the light emitted by the light emitter 416, the light receiver 417 cannot receive the light emitted by the light emitter 416. The cylinder 414 drives the second clamping plate 415 to move upward, and the second clamping plate 415 drives the light emitter 416 to move vertically upward. When the light emitter 416 is higher than the cargo, the light receiver 417 receives the light emitted by the light emitter 416, and the cylinder 414 stops at this time. Step S4: Start the second motor 410. The second motor 410 drives two third lead screws 411 to rotate. The two third lead screws 411 drive two second moving sliders 412 to move horizontally. The two second moving sliders 412 drive two sliding plates 407 to move horizontally in the sliding cavity 406. The two sliding plates 407 drive two first clamping plates 408 to move horizontally towards each other. The two first clamping plates 408 drive the second clamping plate 415 to move horizontally through the guiding rectangular grooves and guiding square columns. The goods squeeze the force-bearing rod 418 to move horizontally. The force-bearing rod 418 drives one end of the traction rod 421 to move linearly. The traction rod 421 drives the guiding slider 420 to move horizontally towards the goods on the guiding slide rail 419. The guiding slider 420 drives the L-shaped support plate 422 to move horizontally towards the goods. The L-shaped support plate 422 abuts against the front side of the goods, and the first clamping plate 408 and the second clamping plate 415 abut against the left and right sides of the goods, thereby completing the fixing operation of the goods. Step S5: Start the third motor 601. The third motor 601 drives the driving gear 602 to rotate clockwise. The driving gear 602 drives the first driven rack 603 and the second driven rack 604 to move towards each other. The first driven rack 603 drives the mounting bracket 404 to move horizontally until it returns to its original position through the connecting plate 403. The second driven rack 604 drives the connecting bracket 504 to move horizontally until it returns to its original position through the counterweight plate 501. Step S6: Push the driving bracket 2 so that the driving bracket 2 moves to the position where the goods need to be loaded. Start the first motor 205 to drive the first lead screw 206 to rotate. The first lead screw 206 drives the second lead screw 207 to rotate through the synchronous belt structure, so that the first moving slider 208 moves vertically upward on the second lead screw 207. The first moving slider 208 drives the mounting plate 1 to move vertically upward. The mounting plate 1 drives the goods to the loading area through the fixing mechanism 4. Step S7: Start the third motor 601. The third motor 601 drives the driving gear 602 to rotate counterclockwise. The driving gear 602 drives the first driven rack 603 and the second driven rack 604 to move away from each other. The first driven rack 603 drives the mounting bracket 404 to move horizontally. At this time, the goods are located above the position where the goods need to be loaded. The second driven rack 604 drives the connecting bracket 504 to move horizontally through the counterweight plate 501. The connecting bracket 504 drives the counterweight piece 503 to move horizontally through the limiting rod 507. Step S8, start the second motor 410 to drive the two third lead screws 411 to rotate. The two third lead screws 411 drive the two sliding plates 407 to move horizontally into the sliding cavity 406 through the two second moving sliders 412. The two sliding plates 407 drive the two first clamping plates 408 and the second clamping plate 415 away from the goods. Under the action of gravity, the goods move downward and fall to the position where the goods need to be loaded.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A lifting frame for storage and transfer, characterized in that: The lifting frame comprises: A driving bracket for driving the two mounting plates to rise and fall; A placement plate installed between the two installation plates and used for placing goods; A fixing mechanism and a center of gravity adjustment mechanism installed on both sides of the placement plate; The driving mechanism is installed on the placement plate, and the driving mechanism ensures the stability of the lifting frame during operation by controlling the fixing mechanism and the center of gravity adjustment mechanism to perform synchronous reverse horizontal displacement.

2. The storage and transfer lifting rack according to claim 1, characterized in that: The fixing mechanism comprises: A guide frame fixed on the placement plate; A movable rod movably mounted on the guide frame; A connecting plate fixed to one end of the movable rod; A mounting frame fixed to the connecting plate; A mounting cavity and two sliding cavities are provided on the mounting frame; Sliding plates sliding in the sliding cavities and having the same number as the sliding cavities; a first clamping plate fixed to the sliding plate and having the same number as the sliding plate; A contact plate fixed on the mounting frame; a second motor installed in the installation cavity; two third lead screws driven by the second motor and rotatably mounted in the mounting cavity; A second movable slider fixed to the bottom end of the sliding plate and mounted on the third lead screw; Mounting grooves are provided on the first clamping plate and are equal in number to the first clamping plate; Cylinders fixed in the mounting grooves and having the same number as the mounting grooves; A second clamping plate is slid on the top of the first clamping plate and driven by a cylinder, and the number of the first clamping plate is equal to that of the second clamping plate.

3. The storage and transfer lifting rack according to claim 2, characterized in that: A light transmitter is fixedly mounted on one of the second clamping plates, and a light receiver is fixedly mounted on the other second clamping plate. The light receiver is electrically connected to the cylinder.

4. The storage and transfer lifting frame according to claim 2, characterized in that: The first clamping plate and the second clamping plate are both movably sleeved with a force-bearing rod, the first clamping plate and the second clamping plate are fixedly provided with a guide rail, and the guide rail is slidably sleeved with a guide slider; A traction rod is pin-connected between the force-bearing rod and the guide slider, and an L-shaped support plate is fixedly connected to the guide slider.

5. The storage and transfer lifting frame according to claim 2, characterized in that: The center of gravity adjustment mechanism comprises: a counterweight plate placed on the mounting plate and slidably connected to the mounting plate; A placement rack fixed on the driving bracket; A weight plate placed in the placement rack; A connecting bracket fixedly connected to the bottom end of the counterweight plate and located on both sides of the opening of the placement rack; A first limiting hole is provided on the weight plate; A second limiting hole is provided on the connecting bracket, wherein the second limiting hole is formed by a rectangular hole and a circular hole intersecting each other; A limiting rod slides in the first limiting hole and the second limiting hole in a horizontally aligned state, and rectangular plates corresponding to the rectangular holes are fixedly arranged at both ends of the limiting rod.

6. The storage and transfer lifting frame according to claim 5, characterized in that: The weight plate is provided with a long guide hole, and the connecting bracket is fixedly connected with a guide column.

7. The storage and transfer lifting frame according to claim 5, characterized in that: The driving mechanism comprises: A third motor, the third motor is fixedly mounted on the mounting plate; A driving gear, the driving gear is fixedly sleeved on the output end of the third motor; A first driven rack meshingly connected to the driving gear, wherein the first driven rack is fixedly connected to the connecting plate; A second driven rack is meshed with the driving gear, the second driven rack is fixedly connected to the counterweight plate, and the first driven rack and the second driven rack are staggered.

8. The storage and transfer lifting frame according to claim 7, characterized in that: The first driven rack and the second driven rack are slidably mounted on the mounting plate.

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