Push-pull mechanism, lifting frame and stacking machine

Abstract

The utility model provides a push-pull mechanism, a lifting frame and a stacking machine, and belongs to the technical field of stacking machines. Comprising a base, a horizontal push-pull cylinder, a vertical plate, a rotation driving mechanism and a sliding seat, the sliding seat is slidably mounted on the base and connected with the output end of the horizontal push-pull cylinder, the rotation driving mechanism is mounted on the sliding seat, and the vertical plate is rotatably mounted on the edge of the sliding seat through the rotation driving mechanism; the lifting frame serving as a lifting part of the stacking machine is provided with the push-pull mechanism; the stacker uses the lifting frame, and the rotation driving mechanism drives the vertical plate to rotate to stand up or topple over; when the vertical plate is erected, the horizontal push-pull cylinder pushes the sliding seat to enable the vertical plate to push the tray to enter the goods shelf; when the vertical plate topples over, the horizontal push-pull cylinder pushes the sliding seat to enable the vertical plate to extend into the inner side of the tray, the vertical plate is erected by rotating the driving mechanism, and the horizontal push-pull cylinder pulls the vertical plate to pull out the tray; the push-and-pull mechanism can be aligned to each goods position on the goods shelf along with the stacking machine, and compared with the mode that the push-and-pull mechanism is installed on the goods shelf, the number and the size of the push-and-pull mechanism are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of stacker, more particularly, relates to a push-pull mechanism, a lifting frame and a stacker. BACKGROUND

[0002] When heavy goods are stored on high stereoscopic warehouse shelves, a stacker needs to be used to move the pallet carrying the goods to the correct vertical height of the shelf, at which time the stacker needs to be equipped with a roller drive system to push the pallet on the stacker into the shelf under the action of the roller rotation. However, the roller drive system can only push the pallet out a part, and when the pallet is separated from the roller on the stacker closest to the shelf, the pallet cannot move forward any more, at which time the pallet still has a part protruding from the shelf, which may interfere with the movement of the stacker and pose a safety risk.

[0003] Based on the above problems, the utility model with publication number CN222041561U discloses a roller type shelf for storing heavy building materials. In this scheme, when the goods need to be stored, the pallet is moved to the rolling wheel under the driving of the stacker, and when the pallet is separated from the roller on the stacker, the pallet still has a part protruding from the vertical rod. The first driving element is driven to move the second driving element to the appropriate position. Since the middle of the pallet is hollow, the second driving element is driven to make the vertical plate of the push-pull plate above the inner wall of the hollow of the pallet, and then the first driving element is driven to move downward, so that the vertical plate of the push-pull plate abuts against the inner wall of the hollow of the pallet. Finally, the second driving element is driven to pull the vertical plate of the push-pull plate to move the pallet into the goods storage bin. When the goods need to be taken out, the above mechanism is also used.

[0004] However, in this scheme, since the entire push-pull mechanism for driving the movement of the pallet has a screw rod for upward and downward movement, and the screw rod is installed on the shelf for use, i.e., in actual use, the push-pull mechanism needs to cover all the storage locations of the shelf, so multiple sets of push-pull mechanisms need to be set up to meet the movement of the pallets at each location on the shelf. Since the structure of the push-pull mechanism is adapted to be installed on the shelf for multiple storage locations, the push-pull mechanism cannot be directly used on the lifting frame of the stacker to move up and down with the lifting frame. SUMMARY

[0005] To solve the problems of the prior art, the application provides a push-pull mechanism, a lifting frame and a stacker. The push-pull mechanism can be directly installed on the lifting frame of the stacker and can be aligned with each storage location of the shelf following the lifting frame, without the need to install multiple sets of push-pull mechanisms on the shelf.

[0006] To achieve the above object, the technical scheme of the present application provides a push-pull mechanism, which comprises a base, a horizontal push-pull cylinder and a vertical plate. The horizontal push-pull cylinder is fixed opposite to the base. The push-pull mechanism further comprises a rotating driving mechanism and a sliding seat. The sliding seat is slidingly installed on the base and fixedly connected with the output end of the horizontal push-pull cylinder. The rotating driving mechanism is installed on the sliding seat. The vertical plate is rotatably installed on the edge of the sliding seat away from the horizontal push-pull cylinder by the rotating driving mechanism. The rotating shaft of the vertical plate is eccentrically arranged on the vertical plate. The extending direction of the rotating shaft of the vertical plate is parallel to the sliding direction of the sliding seat.

[0007] The push-pull mechanism is used to be installed on the lifting frame of a stacking machine. The rotating driving mechanism can drive the vertical plate to rotate. Since the rotating shaft of the vertical plate is eccentrically arranged on the vertical plate, the vertical plate can be erected or tilted by rotating. When the vertical plate is erected, the horizontal push-pull cylinder can make the vertical plate abut against the tray by pushing the sliding seat, so as to push the tray to completely enter the shelf. When the vertical plate is tilted, the horizontal push-pull cylinder can make the vertical plate extend into the inside of the tray by pushing the sliding seat. Then, the vertical plate is erected by the rotating driving mechanism. The vertical plate is rotated to hook the inside of the tray. The horizontal push-pull cylinder pulls the vertical plate to pull out the tray. The whole push-pull mechanism is used to be installed on the stacking machine and can be aligned to each storage position on the shelf following the stacking machine. Compared with being installed on the shelf, the number and size of the push-pull mechanism are reduced.

[0008] Optionally, the rotating driving mechanism comprises a swing cylinder, a connecting shaft, a push-pull inner baffle and a rotating shaft. The swing cylinder is hingedly connected with the sliding seat. The extending direction of the output end of the swing cylinder is perpendicular to the sliding direction of the sliding seat. The connecting shaft is laterally arranged on the output end of the swing cylinder and hingedly connected with the output end of the swing cylinder. The end of the connecting shaft away from the swing cylinder is fixedly connected with the push-pull inner baffle. The rotating shaft is rotatably arranged on the sliding seat. One end of the rotating shaft is fixedly connected with the push-pull inner baffle. The other end of the rotating shaft is fixedly connected with the rotating shaft of the vertical plate. The connecting position of the connecting shaft and the push-pull inner baffle is eccentrically arranged with the axis of the rotating shaft. The swing cylinder can drive the rotating shaft to rotate by extending and retracting, so as to realize the erection and tilting of the vertical plate.

[0009] Optionally, the output end of the swing cylinder has a laterally extending through hole. The end of the connecting shaft away from the push-pull inner baffle is arranged through the through hole and connected with a limiting piece. The swing cylinder and the connecting shaft are hingedly connected by the arrangement, and the connecting shaft and the swing cylinder are prevented from being separated.

[0010] Optionally, the top of the sliding seat is provided with a first U-shaped groove extending along the sliding direction of the sliding seat. Two mounting plates are fixedly arranged on the opposite side walls of the first U-shaped groove. The two mounting plates are arranged in a spaced manner. The rotating shaft is arranged through the two mounting plates and can rotate. The swing cylinder is hingedly connected with the bottom wall of the first U-shaped groove. The two mounting plates can realize the installation of the rotating shaft and prevent the rotating shaft from being deflected.

[0011] Optionally, the outer side of the rotating shaft is provided with two groups of abutting rings, and the two groups of abutting rings are respectively abutted against the side walls of the two installation plates opposite to each other. When the tray is pushed and pulled, the force applied by the tray to the vertical plate can be transmitted to the installation plate and the sliding seat through the abutting rings on the rotating shaft, so that the force is prevented from being transmitted to the swing cylinder, the goods loading and unloading capacity is improved, and the two groups of abutting rings clamp the installation plate, so that the stability of the rotating shaft is further ensured.

[0012] Optionally, the top of the base is provided with a second U-shaped groove, and the sliding seat is slidingly arranged in the second U-shaped groove. The second U-shaped groove limits the sliding of the sliding seat, thereby ensuring the stability of the pushing and pulling.

[0013] The technical scheme of the present application provides a lifting frame, which comprises a lifting frame body, a driving wheel, a driven wheel and a push-pull mechanism shown in any one of the above, the lifting frame body has a delivery edge close to a goods shelf, the driving wheel is installed at the top of the lifting frame body and located at the delivery edge, the driven wheel is distributed at the top of the lifting frame body, the horizontal push-pull cylinder and the base are fixedly installed at the top of the lifting frame body, the base is located at the delivery edge, the horizontal push-pull cylinder is located inside the lifting frame body and arranged towards the delivery edge, and the vertical plate can extend out of the delivery edge along with the sliding seat.

[0014] The lifting frame is used for the load lifting part of a stacker. When goods need to be stored in a goods shelf, the driving wheel drives the tray into the goods shelf, the sliding seat of the push-pull mechanism is extended to drive the vertical plate to push the tray into the goods shelf. When the goods need to be taken out from the goods shelf, the sliding seat of the push-pull mechanism is extended, the rotating drive mechanism drives the vertical plate to hook the tray from the bottom, the horizontal push-pull cylinder drives the vertical plate to pull the tray, and the driving wheel drives the tray into the lifting frame body. When the stacker moves, the sliding seat is retracted towards the base to avoid interference with the goods shelf.

[0015] Optionally, both ends of the lifting frame body are delivery edges, and the driving wheel and the push-pull mechanism are installed at both delivery edges. At this time, both ends of the lifting frame have the ability to load and unload the tray, and the goods shelf can be arranged at both ends to improve the space utilization rate.

[0016] The technical scheme of the present application provides a stacker, which comprises a frame body, a winch, a horizontal guide rail and a lifting frame shown in any one of the above, the frame body has a vertical sliding rail, the lifting frame body is slidingly installed on the vertical sliding rail, the winch is fixedly installed at the top of the frame body, the cable of the winch is connected with the lifting frame, the bottom end of the frame body is provided with a traveling mechanism, and the frame body is installed on the horizontal guide rail through the traveling mechanism.

[0017] The frame body can move horizontally along the horizontal guide rail, and the winch is used to drive the lifting frame to lift. Through the horizontal movement of the frame body and the up-down movement of the lifting frame, the lifting frame can be aligned to different storage locations of the shelf, and the push-pull mechanism can be used to realize the loading and unloading of the trays in different storage locations. Due to the use of the push-pull mechanism, only the push-pull mechanism for moving the stacker is needed to meet the loading and unloading requirements, and there is no need to set a mechanism corresponding to each storage location on the shelf, thereby reducing the number of parts.

[0018] The technical scheme of the present application has the beneficial effects over the prior art, which are as follows:

[0019] The push-pull mechanism can be installed on the lifting frame of the stacker and can be aligned to each storage location on the shelf. Compared with installing multiple sets of push-pull mechanisms for aligning with each storage location on the shelf, the number of push-pull mechanisms is reduced, the structure is simpler, and the assembly cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a side view structure schematic diagram of the push-pull mechanism when the vertical plate is erected.

[0022] Figure 2 It is a push-pull mechanism structure schematic diagram when the vertical plate is tilted.

[0023] Figure 3 It is a rotating drive mechanism structure schematic diagram.

[0024] Figure 4 It is a lifting frame structure schematic diagram.

[0025] Figure 5 It is a stacker structure schematic diagram.

[0026] Icon: 100, tray; 1, base; 2, horizontal push-pull cylinder; 3, vertical plate; 4, sliding seat; 5, swing cylinder; 6, connecting shaft; 7, push-pull inner baffle; 8, rotating shaft; 9, through hole; 10, limiting piece; 11, first U-shaped groove; 12, mounting plate; 13, abutting ring; 14, second U-shaped groove; 15, lifting frame body; 16, driving wheel; 17, driven wheel; 18, delivery edge; 19, frame body; 20, winch; 21, horizontal guide rail; 22, vertical slide rail; 23, traveling mechanism. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0028] Embodiment 1:

[0029] The embodiment provides a push-pull mechanism, based on Figures 1 to 3 As shown in the figure, it comprises a base 1, a horizontal push-pull cylinder 2 and a vertical plate 3, and the horizontal push-pull cylinder 2 is fixedly connected to the base 1. On the basis of the above structure, it further comprises a rotating driving mechanism and a sliding seat 4, the sliding seat 4 is slidingly installed on the base 1 and fixedly connected to the output end of the horizontal push-pull cylinder 2, the rotating driving mechanism is installed on the sliding seat 4, the vertical plate 3 is rotatably installed on the edge of the sliding seat 4 away from the horizontal push-pull cylinder 2 through the rotating driving mechanism, the rotating shaft of the vertical plate 3 is eccentrically arranged on the vertical plate 3, and the extending direction of the rotating shaft of the vertical plate 3 is parallel to the sliding direction of the sliding seat 4. Since the rotating shaft of the vertical plate 3 is eccentrically arranged on the vertical plate 3, the vertical plate 3 can be erected or tilted under the driving of the rotating driving mechanism.

[0030] The push-pull mechanism is used to be installed on the lifting frame of the stacker, the lifting frame is the part used to drive the goods to rise and fall on the stacker, and it is aligned to the corresponding goods location on the shelf along with the stacker. When it is needed to store the tray 100 on the shelf, the rotating driving mechanism drives the vertical plate 3 to be erected, and the horizontal push-pull cylinder 2 can make the vertical plate 3 abut to the tray 100 by pushing the sliding seat 4, and the tray 100 is pushed to completely enter the shelf. When it is needed to pull out the tray 100 from the shelf, the rotating driving mechanism drives the vertical plate 3 to be tilted, and the horizontal push-pull cylinder 2 can make the vertical plate 3 extend into the inside of the tray 100 by pushing the sliding seat 4, at this time, the vertical plate 3 is erected again by the rotating driving mechanism, the vertical plate 3 is rotated to hook the inside of the tray 100, and the horizontal push-pull cylinder 2 pulls the vertical plate 3 to pull out the tray 100. The whole push-pull mechanism is used to be installed on the stacker, and can be aligned to each goods location on the shelf along with the stacker, and compared with being installed on the shelf, the number and size of the push-pull mechanism are reduced.

[0031] The rotating driving mechanism comprises a swing cylinder 5, a connecting shaft 6, a push-pull inner baffle 7 and a rotating shaft 8. The swing cylinder 5 is hinged to the sliding seat 4, and the extension direction of the output end of the swing cylinder 5 is perpendicular to the sliding direction of the sliding seat 4. The connecting shaft 6 is arranged laterally at the output end of the swing cylinder 5 and is hinged to the output end of the swing cylinder 5, the end of the connecting shaft 6 away from the swing cylinder 5 is fixedly connected with the push-pull inner baffle 7, the rotating shaft 8 is rotatably arranged on the sliding seat 4, one end of the rotating shaft 8 is fixedly connected with the push-pull inner baffle 7, the other end of the rotating shaft 8 is fixedly connected with the rotating shaft center of the vertical plate 3, and the connecting position of the connecting shaft 6 and the push-pull inner baffle 7 is eccentrically arranged with the axis of the rotating shaft 8. The connecting shaft 6, the push-pull inner baffle 7 and the rotating shaft 8 are combined into a Z-shaped structure. In use, the output end of the swing cylinder 5 can drive the connecting shaft 6 to rotate around the rotating shaft 8 through extension and retraction, the connecting shaft 6 drives the rotating shaft 8 to rotate through the push-pull inner baffle 7, and the vertical plate 3 is realized to be erected and dumped. Since the swing cylinder 5 is hinged to the sliding seat 4, the connecting shaft 6 can be prevented from being stuck when rotating around the rotating shaft 8.

[0032] The output end of the swing cylinder 5 has a laterally extending through hole 9, and the end of the connecting shaft 6 away from the push-pull inner baffle 7 is arranged to pass through the through hole 9 and is connected with a limiting piece 10. Through the arrangement, the output end of the swing cylinder 5 is hinged to the connecting shaft 6. The limiting piece 10 can be a bolt, a limiting pin or any component with a size larger than the through hole 9 and connected to the end of the connecting shaft 6, which can prevent the connecting shaft 6 from being separated from the through hole 9.

[0033] Further, the top of the sliding seat 4 is provided with a first U-shaped groove 11 extending along the sliding direction thereof, two mounting plates 12 are fixedly arranged between the opposite side walls of the first U-shaped groove 11, the rotating shaft 8 passes through the two mounting plates 12 and can rotate, and the swing cylinder 5 is hinged to the bottom wall of the first U-shaped groove 11. The two mounting plates 12 realize the mounting of the rotating shaft 8 and can also prevent the rotating shaft 8 from being deflected.

[0034] Further, two groups of abutting rings 13 are fixedly arranged on the outer side of the rotating shaft 8, and the two groups of abutting rings 13 are respectively abutted on the side walls of the two mounting plates 12 away from each other. When the tray 100 is pushed and pulled, the force applied by the tray 100 to the vertical plate 3 can be transmitted to the mounting plates 12 and the sliding seat 4 through the abutting rings 13 on the rotating shaft 8, so as to prevent the force from being transmitted to the swing cylinder 5, improve the cargo loading and unloading capacity, and the two groups of abutting rings 13 clamp the mounting plates 12, which can further ensure the stability of the rotating shaft 8.

[0035] Further, the top of the base 1 is provided with a second U-shaped groove 14, and the sliding seat 4 is slidingly arranged in the second U-shaped groove 14. The second U-shaped groove 14 limits the sliding of the sliding seat 4, so as to ensure the stability of the pushing and pulling.

[0036] Embodiment 2:

[0037] The embodiment provides a lifting frame, based on Figure 4 As shown in the figure, the lifting frame is used for lifting the tray 100 in a stacker and comprises a lifting frame body 15, a driving wheel 16, a driven wheel 17 and the push-pull mechanism shown in the embodiment 1. The lifting frame body 15 has a delivery edge 18 close to a shelf, and the tray 100 enters or moves out of the shelf from the delivery edge 18. The driving wheel 16 is installed on the top of the lifting frame body 15 and located at the delivery edge 18, and the driven wheel 17 is distributed on the top of the lifting frame body 15. The horizontal push-pull cylinder 2 and the base 1 are both fixedly installed on the top of the lifting frame body 15, the base 1 is located at the delivery edge 18, the horizontal push-pull cylinder 2 is located inside the lifting frame body 15 and is arranged towards the delivery edge 18, and the vertical plate 3 can extend out of the delivery edge 18 along with the sliding seat 4.

[0038] The driving wheel 16 is used for moving the tray 100, and the driven wheel 17 is used for supporting the tray 100. When the tray 100 needs to be stored into the shelf, the driving wheel 16 drives the tray 100 to enter the shelf, but when the tray 100 is separated from the driving wheel 16, a part of the tray 100 still extends out of the shelf and does not completely enter the shelf. At this time, the rotating driving mechanism drives the vertical plate 3 to the standing state, the horizontal push-pull cylinder 2 drives the sliding seat 4 to extend to drive the vertical plate 3 to extend out of the delivery edge 18 and push the tray 100 to completely enter the shelf. When the tray 100 needs to be taken out of the shelf, the horizontal push-pull cylinder 2 drives the sliding seat 4 to extend to drive the vertical plate 3 to extend out of the delivery edge 18, the rotating driving mechanism drives the vertical plate 3 to be tilted, the horizontal push-pull cylinder 2 can make the vertical plate 3 extend into the inside of the tray 100 by pushing the sliding seat 4, at this time, the vertical plate 3 is stood up again by the rotating driving mechanism, the vertical plate 3 is rotated to hook the inside of the tray 100, and the horizontal push-pull cylinder 2 pulls the vertical plate 3 to pull out the tray 100. When the tray 100 is pulled out to the driving wheel 16, the driving wheel 16 drives the tray 100 to enter the lifting frame body 15. When the stacker moves, the sliding seat 4 is contracted to the base 1 direction, so as to avoid interference with the shelf.

[0039] Preferably, both ends of the lifting frame body 15 are the delivery edges 18, and the driving wheel 16 and the push-pull mechanism are installed at the two delivery edges 18. At this time, the lifting frame body 15 has the ability to load and unload the tray 100 at both ends, shelves can be arranged at both ends, and the space utilization rate is improved.

[0040] Embodiment 3:

[0041] The embodiment provides a stacker, based on Figure 5As shown, it comprises a frame body 19, a hoist 20, a horizontal guide rail 21 and the lifting frame shown in embodiment 2. The frame body 19 has vertical sliding rails 22, the lifting frame body 15 is slidingly installed on the vertical sliding rails 22, the hoist 20 is fixedly installed on the top of the frame body 19, the cable of the hoist 20 is connected with the lifting frame, the bottom end of the frame body 19 is provided with a traveling mechanism 23, and the frame body 19 is installed on the horizontal guide rail 21 through the traveling mechanism 23.

[0042] In use, the hoist 20 drives the lifting frame body 15 to move along the vertical sliding rails 22, and the frame body 19 moves along the horizontal guide rail 21 through traveling. The traveling mechanism 23 is a common mechanism for horizontal movement of the stacker, which will not be described herein. Through the horizontal movement of the frame body 19 and the up-down movement of the lifting frame, the lifting frame can be aligned to different storage locations of the shelf, and cooperating with the push-pull mechanism, the loading and unloading of the tray 100 in different storage locations can be realized. Since the push-pull mechanism in embodiment 1 is used, only the push-pull mechanism for moving the stacker is needed to meet the loading and unloading requirements, and it is not necessary to set the push-pull mechanism corresponding to each storage location on the shelf, thereby reducing the number of parts.

[0043] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A push-pull mechanism, comprising a base, a horizontal push-pull cylinder, and a vertical plate, wherein the horizontal push-pull cylinder is fixed relative to the base, characterized in that: It also includes a rotation drive mechanism and a sliding seat. The sliding seat is slidably mounted on the base and fixedly connected to the output end of the horizontal push-pull cylinder. The rotation drive mechanism is mounted on the sliding seat. The vertical plate is rotatably mounted on the edge of the sliding seat away from the horizontal push-pull cylinder through the rotation drive mechanism. The rotation axis of the vertical plate is eccentrically set on the vertical plate, and the extension direction of the rotation axis of the vertical plate is parallel to the sliding direction of the sliding seat.

2. The push-pull mechanism as described in claim 1, characterized in that: The rotation drive mechanism includes a swing cylinder, a connecting shaft, a push-pull inner baffle, and a rotating shaft. The swing cylinder is hinged to the sliding seat, and the extension and retraction direction of the output end of the swing cylinder is perpendicular to the sliding direction of the sliding seat. The connecting shaft extends laterally and is hinged to the output end of the swing cylinder. The end of the connecting shaft away from the swing cylinder is fixedly connected to the push-pull inner baffle. The rotating shaft is rotatably mounted on the sliding seat. One end of the rotating shaft is fixedly connected to the push-pull inner baffle, and the other end of the rotating shaft is fixedly connected to the rotation axis of the vertical plate. The connection between the connecting shaft and the push-pull inner baffle is eccentrically set with respect to the axis of the rotating shaft.

3. The push-pull mechanism as described in claim 2, characterized in that: The output end of the swing cylinder has a laterally extending through hole, and the end of the connecting shaft away from the push-pull inner baffle passes through the through hole and is connected to a limiting member.

4. The push-pull mechanism as described in claim 2 or 3, characterized in that: The top of the sliding seat is provided with a first U-shaped groove extending along its sliding direction. Two mounting plates are fixedly mounted between the opposite sidewalls of the first U-shaped groove. The two mounting plates are spaced apart from each other. The rotating shaft passes through the two mounting plates and can rotate. The swing cylinder is hinged to the bottom wall of the first U-shaped groove.

5. The push-pull mechanism as described in claim 4, characterized in that: Two sets of abutment rings are fixedly sleeved on the outer side of the rotating shaft, and the two sets of abutment rings abut against the opposite side walls of the two mounting plates.

6. The push-pull mechanism as described in claim 1, 2, or 3, characterized in that: The top of the base is provided with a second U-shaped groove, and the sliding seat is slidably disposed in the second U-shaped groove.

7. A lifting frame, characterized in that: The device includes a lifting frame body, a drive wheel, a driven wheel, and a push-pull mechanism as described in any one of claims 1-6. The lifting frame body has a delivery edge near the shelf. The drive wheel is mounted on the top of the lifting frame body and located at the delivery edge. The driven wheels are distributed on the top of the lifting frame body. The horizontal push-pull cylinder and the base are both fixedly mounted on the top of the lifting frame body. The base is located at the delivery edge. The horizontal push-pull cylinder is located inside the lifting frame body and faces the delivery edge. The vertical plate can extend beyond the delivery edge following the sliding seat.

8. The lifting frame as described in claim 7, characterized in that: Both ends of the lifting frame body are delivery edges, and the drive wheel and the push-pull mechanism are installed on both delivery edges.

9. A stacker crane, characterized in that: The system includes a frame body, a winch, a horizontal guide rail, and a lifting frame as described in claim 7 or 8. The frame body has a vertical slide rail, and the lifting frame body is slidably mounted on the vertical slide rail. The winch is fixedly mounted on the top of the frame body, and the winch cable is connected to the lifting frame. A traveling mechanism is provided at the bottom of the frame body, and the frame body is mounted on the horizontal guide rail via the traveling mechanism.

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