Log line pallet blocking positioning device

Abstract

A logistics line pallet blocking positioning device, comprising a bottom frame, a conveying assembly, a jacking assembly and a blocking assembly; the blocking assembly is used for blocking and releasing the pallet; the blocking assembly comprises a blocking bottom plate, a blocking plate and an elastic member; the blocking plate is rotatably installed on the blocking bottom plate; the blocking plate comprises a first end facing away from the conveying direction of the pallet and a second end opposite to the first end; the elastic member connects the blocking plate and the blocking bottom plate and is used for driving the blocking plate to reset; the blocking plate comprises an initial position, a blocking position and a conveying position; in the initial position, the elastic member is in an original state, and the first end is higher than the movement height of the pallet; in the blocking position, the front end of the movement of the pallet is in contact with the blocking plate, the second end is in contact with the blocking bottom plate, and the elastic member is in a stressed state; in the conveying position, the first end is in contact with the bottom of the pallet, and neither the first end nor the second end is higher than the movement height of the pallet, and the elastic member is in a stressed state. The blocking and releasing of the pallet are realized by the gravity of the pallet itself, and the power source is reduced and the cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy lithium battery manufacturing, and in particular to a pallet blocking and positioning device for a logistics line. Background Art

[0002] Lithium batteries, the power source for future electric vehicles and energy storage, are largely manufactured using automated logistics lines. To ensure overall efficiency, automated logistics lines often require continuous conveyor movement. However, when the pallet containing the batteries moves to a specific workstation, it must be removed from the conveyor belt. Otherwise, excessive heat is generated, affecting the lifespan of the moving parts. Furthermore, the pallet must be precisely positioned to allow for the next workstation's workflow, such as assembly, testing, and packaging. Therefore, devices that prevent the pallet from moving and precisely position it when it is lifted are essential features of logistics lines.

[0003] Traditional blocking and lifting precision positioning devices require a power source to perform the blocking action, such as a blocking cylinder, to stop the moving pallet on the conveyor line; at the same time, another power source is required to lift the pallet, such as a lifting device, to realize the function of the pallet detaching from the conveyor line; finally, another power source is required, such as a positioning device, to achieve precise positioning of the pallet.

[0004] In the above technical solution, multiple power sources are required, and there are many power demands, such as electricity supply, gas supply, etc. The system control is complex, the structure is complex, and the cost is relatively high. Summary of the Invention

[0005] The main technical problem solved by the present invention is how to simplify the structure of the pallet gear positioning device on the logistics line and reduce the cost.

[0006] In one embodiment, a pallet blocking and positioning device for a logistics line is provided, comprising:

[0007] The bottom frame holds all other components and the battery tray;

[0008] Conveying components, used for conveying pallets on the logistics line;

[0009] a lifting assembly for positioning and lifting the pallet; and

[0010] A blocking assembly for blocking and releasing a pallet, the blocking assembly comprising a blocking base, a blocking plate, and an elastic member; the blocking base remains fixed in the direction in which the pallet is lifted; the blocking plate is rotatably mounted on the blocking base, and the rotation axis of the blocking plate is horizontally arranged, perpendicular to the conveying direction of the pallet and lower than the moving height of the pallet; the blocking plate comprises a first end facing away from the conveying direction of the pallet and a second end opposite to the first end; the elastic member connects the blocking plate and the blocking base, and is used to drive the blocking plate to reset;

[0011] The blocking plate includes an initial position, a stopping position and a conveying position; in the initial position, the elastic member is in its original state, and the first end is higher than the moving height of the tray; in the stopping position, the moving front end of the tray contacts the blocking plate, and the second end contacts the blocking bottom plate, and the elastic member is in a stressed state; in the conveying position, the first end contacts the bottom of the tray, and both the first end and the second end are not higher than the moving height of the tray, and the elastic member is in a stressed state.

[0012] In another embodiment, a mounting groove is provided at the second end of the blocking plate, a blocking seat is provided on the blocking bottom plate, the rotating shaft of the blocking plate is provided on the blocking seat, and the rotating shaft of the blocking plate is rotatably connected to the inner wall of the mounting groove through a rotating bearing.

[0013] In another embodiment, the elastic member includes a spring seat, a spring pull rod and a spring, the spring seat is arranged on the blocking bottom plate, and both ends of the spring pull rod are arranged on the inner wall of the mounting groove and are parallel to the rotation axis of the blocking plate; one end of the spring is installed on the spring seat, and the other end is installed on the spring pull rod.

[0014] In another embodiment, the spring pull rod is disposed near the second end of the blocking plate.

[0015] In another embodiment, the spring pull rod is provided with an embedding groove along the circumference, and the spring is arranged in the embedding groove to limit the displacement of the spring.

[0016] In another embodiment, the spring seat passes through the blocking base plate, and two adjusting nuts are threadedly connected to the spring seat. The two adjusting nuts are respectively arranged on both sides of the blocking base plate for locking or adjusting the height of the spring seat.

[0017] In another embodiment, blocking bearings are provided on both sides of the first end of the blocking plate, and downward pressure bearings are provided on both sides of the second end of the blocking plate, and the axes of the blocking bearings and the downward pressure bearings are parallel to the rotation axis of the blocking plate; the outer rings of the blocking bearings and the downward pressure bearings are provided beyond the edge of the blocking plate.

[0018] In another embodiment, the jacking assembly includes a fixed large plate, a jacking welding frame, a positioning member and a driving member; the fixed large plate is fixed to the upper end of the bottom frame, the jacking welding frame is movably installed on the fixed large plate in the vertical direction, the blocking bottom plate is installed on the fixed large plate, the driving member is used to drive the jacking welding frame to rise and fall, and the positioning member is used to position the pallet.

[0019] In another embodiment, the positioning member includes at least two groups of positioning columns arranged on the jacking welding frame, the positioning columns are distributed along the corners of the tray, and corresponding positioning holes for inserting the positioning columns are opened at the bottom of the tray.

[0020] In another embodiment, four groups of limiting guide blocks are provided at the top of the lifting welding frame, and the four groups of limiting guide blocks are respectively provided on the peripheral sides of the lifting welding frame and at the corner positions of the battery tray to limit the deviation of the battery tray.

[0021] According to the logistics line pallet blocking and positioning device of the above embodiment, when the battery pallet moves to the blocking plate position, since the first end of the blocking plate is higher than the movement height of the battery pallet, the battery pallet pushes the battery pallet to rotate along the rotating shaft until the second end of the blocking plate contacts the blocking bottom plate, and the battery pallet is blocked on one side of the blocking plate, and the blocking plate is in the blocking position; subsequently, the battery pallet is positioned and lifted up by the jacking assembly to perform the next step of processing on the battery, and the blocking plate is reset to the initial position under the action of the elastic member; the pallet after processing is completed descends and presses down the first end of the blocking plate to rotate until the blocking plate rotates to the conveying position, and the conveying assembly continues to drive the battery pallet to move to the next workstation, and the blocking plate rotates from the conveying position to the initial position under the action of the elastic member; the set blocking plate and elastic member can utilize the gravity of the battery pallet itself and the elastic force of the spring as power sources to achieve blocking and releasing of the pallet, saving power sources, simplifying the structure and control method, and saving control material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the pallet blocking and positioning device for a logistics line according to an embodiment of the present application;

[0023] Figure 2 is a schematic structural diagram of a blocking assembly according to an embodiment;

[0024] Figure 3 A schematic structural diagram of a blocking component according to an embodiment from another perspective;

[0025] Figure 4 A side view of a barrier assembly according to an embodiment;

[0026] Figure 5 This is a structural schematic diagram of a jacking assembly according to an embodiment;

[0027] Figure 6 This is a structural schematic diagram of a jacking assembly from another perspective of an embodiment;

[0028] Figure 7 Schematic diagram of the structure of a conveying assembly according to an embodiment;

[0029] Figure 8 Schematic diagram of the state change of the blocking plate in an embodiment of the present application.

[0030] Reference numerals: 1, bottom frame; 2, conveying assembly; 21, power roller; 22, roller mounting plate; 23, transmission chain; 24, driven roller; 25, roller guide plate; 26, roller connecting rod; 3, lifting assembly; 31, fixed large plate; 32, lifting welding frame; 33, positioning member; 331, limit guide block; 332, positioning column; 34, guide member; 341, guide column; 342, linear bearing; 343, lifting longitudinal plate; 344, lifting transverse plate; 35, driving Moving parts; 351, lifting cylinder; 352, cylinder fixing plate; 353, floating joint; 354, floating seat; 355, limiting rod; 356, limiting nut; 4, blocking assembly; 41, blocking base plate; 42, blocking plate; 421, mounting groove; 43, blocking seat; 44, rotating bearing; 45, elastic part; 451, spring seat; 452, spring pull rod; 453, spring; 454, adjusting nut; 455, embedded groove; 46, blocking bearing; 47, downward pressure bearing. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions, and for those skilled in the art, it is not necessary to describe these related operations in detail. They will fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0032] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0033] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0034] Traditional blocking and lifting precision positioning devices require a power source to perform the blocking action, such as a blocking cylinder, to stop the moving pallet on the conveyor line; at the same time, another power source is required to perform the lifting action of the pallet, such as a lifting device, to realize the function of the pallet detaching from the conveyor line; and finally, another power source is required, such as a positioning device, to achieve precise positioning of the pallet. The present invention aims to solve the current technical problem that in the previous logistics line blocking, lifting and precise positioning of pallets, more than two power sources are required, which has many power requirements, complex system control, complex structure, and relatively high cost.

[0035] In an embodiment of the present invention, a new structural solution is proposed, which controls the lifting and lowering of the pallet by adopting a single power source (including but not limited to a pneumatic cylinder, an electric cylinder, etc.), and utilizes the gravity of the pallet itself and the clever resetting coordination of the spring 453 to achieve the blocking and releasing of the pallet. At the same time, the gravity of the pallet itself is utilized for guiding in the plane direction to achieve precise positioning of the pallet. Only one power source is used to realize three functions, with a simple structure, saving power source, long life and low cost.

[0036] Please refer to Figure 1 In one embodiment, a logistics line pallet blocking and positioning device is provided, including a bottom frame 1, a conveying component 2, a lifting component 3 and a blocking component 4; the bottom frame 1 is used to carry all other components and battery pallets; the conveying component 2 is used to transport the pallet on the logistics line; the lifting component 3 is used to position and lift the pallet; the blocking component 4 is used to block and release the pallet.

[0037] Please refer to Figures 2 to 4 The blocking assembly 4 includes a blocking base plate 41, a blocking plate 42, a blocking seat 43, a blocking bearing 46 and an elastic member 45. The blocking base plate 41 is mounted on the lifting assembly 3 and remains fixed in the lifting direction of the pallet; the blocking seat 43 is mounted on the blocking base plate 41, and the blocking plate 42 is rotatably connected to the blocking seat 43. The rotating axis of the blocking plate 42 is horizontally arranged, perpendicular to the conveying direction of the pallet, and lower than the moving height of the pallet; the blocking plate 42 includes a first end away from the conveying direction of the pallet and a second end opposite to the first end. The second end of the blocking plate 42 is opened The upper end of the blocking seat 43 extends into the mounting groove 421. The rotating shaft of the blocking plate 42 is formed into a boss at one end, and the other end passes through the blocking plate 42, the blocking seat 43 in the mounting groove 421, and the other blocking plate 42, and is secured by a nut. Concave holes are formed on both sides of the blocking seat 43, and blocking bearings 46 are disposed within the concave holes. The inner ring of the blocking bearing 46 is coaxially fixed to the rotating shaft of the blocking plate 42, and the outer ring of the blocking bearing 46 is fixedly connected to the inner wall of the concave hole, thereby achieving a rotational connection between the blocking plate 42 and the blocking seat 43. An elastic member 45 connects the blocking plate 42 and the blocking base plate 41 and is used to drive the blocking plate 42 to return to its original position.

[0038] When the battery tray moves to the blocking plate 42 position, since the first end of the blocking plate 42 is higher than the movement height of the battery tray, the battery tray pushes the battery tray to rotate along the rotating shaft until the second end of the blocking plate 42 contacts the blocking bottom plate 41, and the battery tray is blocked on one side of the blocking plate 42; subsequently, the battery tray is positioned and lifted up by the jacking component 3 to perform the next step of processing on the battery, and the blocking plate 42 is reset under the action of the elastic member 45; the tray after processing is completed descends and presses down the first end of the blocking plate 42 to rotate until the blocking plate 42 rotates to the point where the first end and the second end are both lower than the movement height of the tray, and the conveying component 2 continues to drive the battery tray to move to the next workstation, and the blocking plate 42 is reset from the conveying position under the action of the elastic member 45, thereby realizing the process of blocking and releasing the tray by the tray's own gravity in the absence of a power source, simplifying the structure, saving power source, and requiring no electrical coordination control.

[0039] In the examples of this application, please refer to Figures 2 to 4 , the conveying assembly 2 drives the pallet to move to the left, the right end of the blocking plate 42 is the first end, and the left end is the second end. The blocking plate 42 includes an initial position, a stopping position, and a conveying position during the entire implementation process; in the initial position, the elastic member 45 is in its original state, the first end of the blocking plate 42 is higher than the moving height of the pallet, so that when the pallet is conveyed to the first end, it contacts the conveying front end of the pallet, facilitating the pallet to push the blocking plate 42 to rotate; in the stopping position, the conveying front end of the pallet contacts the blocking plate 42, and the second end contacts the blocking bottom plate 41, so that the blocking plate 42 cannot rotate, and the pallet is blocked at the position of the lifting assembly 3, and the elastic member 45 is in a stressed state; in the conveying position, after the pallet descends, the bottom end of the pallet presses down the first end of the blocking plate 42 to rotate, the first end of the blocking plate 42 contacts the bottom of the pallet, and the first and second ends of the blocking plate 42 are not higher than the moving height of the pallet. Under the action of the conveying assembly 2, the pallet passes over the blocking plate 42 for conveyance, and the elastic member 45 is in a stressed state.

[0040] Please refer to Figures 2 to 4 The elastic member 45 includes a spring seat 451, a spring pull rod 452 and a spring 453. The spring seat 451 is vertically arranged as an axis body, and the lower end of the spring seat 451 passes through the blocking bottom plate 41. Two adjusting nuts 454 are threadedly connected to the spring seat 451. The two adjusting nuts 454 are respectively arranged on both sides of the blocking bottom plate 41 for locking or adjusting the height of the spring seat 451; a hanging hole for connecting the spring 453 is opened at the upper end of the spring seat 451; the spring pull rod 452 is parallel to the rotation axis of the blocking plate 42 and is arranged close to the second end of the blocking plate 42, and the two ends of the spring pull rod 452 are inserted into the inner wall of the mounting groove 421 and connected to the blocking plate 42. The spring pull rod 452 is circumferentially provided with an embedding groove 455 for installing the spring 453. The embedding groove 455 and the spring pull rods 452 on both sides form a stepped axis to limit the deviation of the spring 453.

[0041] In the embodiment of the present application, spring 453 is a tension spring, with one end of spring 453 fixed to the hanging hole and the other end fixed to the embedded groove 455. In the initial position, spring 453 is not stressed. In the blocking position and the conveying position, the second end of the limit plate is offset, thereby causing spring 453 to be stretched and stressed, so that the limit plate has a tendency to rotate toward the initial position in the blocking position and the conveying position. Rotating the adjustment nut 454 can adjust the height of the spring seat 451, that is, adjust the height of the spring 453 at the hanging hole, and thus adjust the height of the first end of the blocking plate 42. Therefore, this technical solution can adjust the height of the first end of the blocking plate 42 according to the size of the pallet, which is more applicable and more flexible.

[0042] Please refer to Figure 4 The two ends of the spring pull rod 452 pass through the limit plate, and the two ends of the spring pull rod 452 are coaxially installed with a downward pressure bearing 47; the first end of the blocking plate 42 is provided with a blocking bearing 46 on both sides, and the circumference of the blocking bearing 46 and the downward pressure bearing 47 are parallel to the rotation axis of the blocking plate 42, and the outer rings of the blocking bearing 46 and the downward pressure bearing 47 exceed the edge of the blocking plate 42; in the process from the initial position to the stopping position, the tray contacts the blocking bearing 46, reducing the friction force generated between the two when the tray pushes the blocking plate 42 to rotate, and the downward pressure bearing 47 at the second end contacts the blocking bottom plate 41. At the same time, in the process from the initial position to the conveying position, the bottom end of the tray is also pressed down to contact the blocking bearing 46 to realize the rotation of the blocking plate 42. During the conveying process, the tray is always in contact with the outer ring of the blocking bearing 46, converting static friction into rolling friction, reducing frictional heat in the whole process, making the rotation of the blocking plate 42 more flexible, reducing power loss, and increasing the life of the entire device.

[0043] In another embodiment, please refer to Figure 5 and Figure 6 The jacking assembly 3 includes a fixed large plate 31, a jacking welding frame 32, a positioning member 33, a guide member 34 and a driving member 35; the fixed large plate 31 is fixedly installed on the upper end of the bottom frame 1, the blocking bottom plate 41 is installed on the fixed large plate 31, the jacking welding frame 32 is set as a square frame, and the jacking welding frame 32 is movably installed on the load-bearing frame along the jacking direction through the guide member 34. The guide member 34 is used to limit the lifting and lowering of the jacking welding frame 32 along the jacking direction, and the driving member 35 is used to provide a power source for the lifting and lowering of the jacking welding frame 32; the positioning member 33 is set on the jacking welding frame 32 and can be used to position the pallet.

[0044] Please refer to Figure 6The guide member 34 includes a guide column 341, a linear bearing 342, a lifting longitudinal plate 343 and a lifting transverse plate 344. In the embodiment of the present application, four guide columns 341 are provided and are evenly fixed to the lower end of the lifting welding frame 32; the guide column 341 is vertically arranged and one end is fixed to the lower end of the lifting welding frame 32, and the other end passes through the fixed large plate 31 and is fixed to the lifting longitudinal plate 343. There are two lifting longitudinal plates 343, and any lifting longitudinal plate 343 connects two guide columns 341; four groups of linear bearings 342 are provided corresponding to the guide columns 341, and the linear bearings 342 are fixedly installed on the fixed large plate 31 and are coaxially slidably connected to the four guide shafts one by one. The lifting transverse plate 344 is parallel to the fixed large plate 31 and connects the two lifting longitudinal plates 343.

[0045] Please refer to Figure 6 The driving component 35 includes a lifting cylinder 351, a cylinder fixing plate 352, a floating joint 353, a floating seat 354 and a limit rod 355. The cylinder fixing plate 352 is fixedly installed at the lower end of the fixed large plate 31, and the lifting cylinder 351 is fixedly installed on the cylinder fixing plate 352, and the telescopic rod of the lifting cylinder 351 is vertically toward the lifting horizontal plate 344; the floating joint 353 is arranged at the front end of the telescopic rod of the lifting cylinder 351, and the floating seat 354 is installed on the lifting horizontal plate 344. The floating joint 353 and the floating seat 354 are arranged in coordination with each other. When the telescopic rod of the lifting cylinder 351 is extended and retracted, the lifting and lowering of the jacking welding frame 32 can be realized. There are two limit rods 355 and they are parallel to the guide column 341. One end of the limit rod 355 is fixedly mounted on the cylinder fixing plate 352, and the other end passes through the jacking cross plate 344 and is locked by the limit nut 356. The lifting cylinder 351 is arranged near the center of the fixed large plate 31. The guide member 34 and the limit rod 355 are symmetrically arranged about the lifting cylinder 351, making the entire jacking process more stable, the force more uniform, and the jacking more precise.

[0046] Please refer to Figure 5 The positioning member 33 includes four sets of limiting guide blocks 331 and at least two sets of positioning posts 332 provided on the lifting welding frame 32. The four sets of limiting guide blocks 331 are respectively provided on the sides of the lifting welding frame 32 and at the corners of the battery tray to prevent the battery tray from deviating. In the embodiment of the present application, four sets of positioning posts 332 are provided and distributed near the corners of the tray. The bottom of the tray is provided with corresponding positioning holes for the positioning posts 332 to be inserted. When the lifting welding frame 32 rises, the tray falls between the four sets of limiting guide blocks 331. During the process of the lifting welding frame 32 rising, the positioning posts 332 are inserted into the positioning holes, and the precise positioning of the tray can be achieved by the weight of the tray itself.

[0047] In another embodiment, please refer to Figure 7The conveying assembly 2 is installed on the fixed large plate 31, and includes a power roller 21, a roller mounting plate 22, a transmission chain 23, a driven roller 24, a roller guide plate 25 and a roller connecting rod 26. The roller mounting plate 22 is fixedly installed on the fixed large plate 31 and is distributed on both sides of the jacking welding frame 32 along the conveying direction of the battery pallet; the power roller 21 is rotatably installed on the roller mounting plate 22, and the power roller 21 is driven by an external drive to achieve rotation; a plurality of driven rollers 24 are provided and are parallel to the power roller 21, and a plurality of driven rollers 24 are distributed on both sides of the jacking welding frame 32, and the power roller 21 and the driven roller 24 and the adjacent driven rollers 24 are all synchronously rotated by the transmission chain 23; the roller connecting rod 26 is used to connect the roller mounting plates 22 on both sides of the jacking welding frame 32; the roller guide plates 25 are installed on the roller mounting plate 22 along the pallet conveying direction, and the roller guide plates 25 are distributed on both sides of the pallet conveying to avoid lateral deviation of the pallet. The battery tray is placed on the power roller 21 and the driven roller 24 during transportation. The rotation of the power roller 21 drives the driven roller 24 and the battery tray it supports to move until the moving front end of the battery tray contacts the blocking bearing 46 and pushes the blocking plate 42 to rotate to the stop position. The tray stops moving. At this time, the tray is above the jacking welding frame 32. Then the jacking assembly 3 positions the battery tray and jacks it up for the next step of processing.

[0048] The implementation principle of the embodiment of this application is: Figure 8 MN is the height of the logistics line, the tray is located above MN, point O is the center of rotation of baffle 42, and H is the fixed point of spring 453. Baffle 42 has three states: D1B1, E1A1, and F1C1. Under the tension of spring 453, baffle 42's initial state is E1A1 (when spring 453 is at its shortest, i.e., the initial position).

[0049] The battery tray is placed on the power roller 21 and the driven roller 24 during transportation. The rotation of the power roller 21 drives the driven roller 24 and the battery tray it supports to move until the moving front end of the battery tray contacts the blocking bearing 46. The contact point with the blocking bearing 46 is A1. Since the blocking bearing 46 is higher than the moving height of the battery tray, that is, A1 is higher than the center of the blocking bearing 46, the battery tray pushes the battery tray to rotate counterclockwise around point O until the downward pressure bearing 47 contacts the blocking bottom plate 41 and reaches the contact point D. At this time, the blocking plate 42 is supported and cannot rotate. Point B is the blocking point of the tray, and this is the blocking position of the blocking plate 42.

[0050] Subsequently, the piston rod of the lifting cylinder 351 is retracted, driving the lifting horizontal plate 344 and the lifting vertical plate 343 to push the guide column 341 and the lifting welding frame 32 to rise, and the pallet falls between the four sets of limit guide blocks 331. During the rising process of the lifting welding frame 32, the positioning column 332 is inserted into the positioning hole, and the precise positioning of the pallet is achieved by the gravity of the pallet itself; the lifting welding frame 32 continues to rise to perform the next step of processing on the battery, and the blocking plate 42 is reset from the stopping position D1B1 to the initial position E1A1 under the action of the elastic member 45.

[0051] After the processing is completed, the pallet descends and presses down the blocking plate 42 to rotate. At this time, the blocking plate 42 is in the initial position E1A1, until the blocking plate 42 rotates to the first end and the second end are both lower than the movement height of the pallet, that is, the conveying position F1C1, the lifting welding frame 32 descends and causes the positioning column 332 to disengage from the positioning hole. There is no obstruction on the left side of the pallet, and the pallet moves to the left under the action of the roller power. The upper surface of the blocking bearing 46 is always in contact with the lower surface of the pallet until the pallet is disengaged from the blocking bearing 46. The conveying assembly 2 continues to drive the battery pallet to the next workstation, and the blocking plate 42 is reset to the initial position E1A1 from the conveying position F1C1 under the action of the elastic member 45, thereby realizing the blocking, positioning, lifting and release of the pallet by the pallet's own gravity with only one power source.

[0052] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art can make several simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A pallet blocking and positioning device for a logistics line, characterized in that: include: A bottom frame (1) for carrying all other components and the battery tray; A conveying assembly (2) for conveying pallets on a logistics line; A lifting assembly (3) for positioning and lifting the pallet; and A blocking assembly (4) is used for blocking and releasing a pallet, the blocking assembly (4) comprising a blocking base plate (41), a blocking plate (42) and an elastic member (45), the blocking base plate (41) being fixed in the lifting direction of the pallet; the blocking plate (42) being rotatably mounted on the blocking base plate (41), and the rotation axis of the blocking plate (42) being horizontally arranged and perpendicular to the conveying direction of the pallet and lower than the moving height of the pallet; the blocking plate (42) comprising a first end facing away from the conveying direction of the pallet and a second end opposite to the first end; the elastic member (45) connecting the blocking plate (42) and the blocking base plate (41), the elastic member (45) being used to drive the blocking plate (42) to reset; The blocking plate (42) includes an initial position, a stopping position, and a conveying position; in the initial position, the elastic member (45) is in an original state, and the first end is higher than the moving height of the tray; in the stopping position, the moving front end of the tray contacts the blocking plate (42), and the second end contacts the blocking bottom plate (41), and the elastic member (45) is in a stressed state; in the conveying position, the first end contacts the bottom of the tray, and both the first end and the second end are not higher than the moving height of the tray, and the elastic member (45) is in a stressed state.

2. The pallet blocking and positioning device for a logistics line according to claim 1, characterized in that: A mounting groove (421) is provided at the second end of the blocking plate (42), a blocking seat (43) is provided on the blocking bottom plate (41), a rotating shaft of the blocking plate (42) is provided on the blocking seat (43), and the rotating shaft of the blocking plate (42) is rotatably connected to the inner wall of the mounting groove (421) via a rotary bearing (44).

3. The pallet blocking and positioning device for a logistics line according to claim 2, characterized in that: The elastic member (45) comprises a spring seat (451), a spring pull rod (452) and a spring (453); the spring seat (451) is arranged on the blocking bottom plate (41); both ends of the spring pull rod (452) are arranged on the inner wall of the mounting groove (421) and are parallel to the rotation axis of the blocking plate (42); one end of the spring (453) is mounted on the spring seat (451), and the other end is mounted on the spring pull rod (452).

4. The pallet blocking and positioning device for a logistics line according to claim 3, characterized in that: The spring pull rod (452) is arranged close to the second end of the blocking plate (42).

5. The pallet blocking and positioning device for a logistics line according to claim 4, characterized in that: The spring pull rod (452) is provided with an embedding groove (455) along the circumferential direction, and the spring (453) is arranged at the embedding groove (455) to limit the displacement of the spring (453).

6. The pallet blocking and positioning device for a logistics line according to claim 5, characterized in that: The spring seat (451) passes through the blocking base plate (41), and two adjusting nuts (454) are threadedly connected to the spring seat (451). The two adjusting nuts (454) are respectively arranged on both sides of the blocking base plate (41) and are used to lock or adjust the height of the spring seat (451).

7. The pallet blocking and positioning device for a logistics line according to claim 1, characterized in that: Blocking bearings (46) are provided on both sides of the first end of the blocking plate (42), and downward pressure bearings (47) are provided on both sides of the second end of the blocking plate (42), and the axes of the blocking bearings (46) and the downward pressure bearings (47) are parallel to the rotation axis of the blocking plate (42); the outer rings of the blocking bearings (46) and the downward pressure bearings (47) are arranged beyond the edge of the blocking plate (42).

8. The pallet blocking and positioning device for a logistics line according to any one of claims 1 to 7, characterized in that: The lifting assembly (3) comprises a fixed large plate (31), a lifting welding frame (32), a positioning member (33) and a driving member (35); the fixed large plate (31) is fixed to the upper end of the bottom frame (1), the lifting welding frame (32) is movably mounted on the fixed large plate (31) in a vertical direction, the blocking bottom plate (41) is mounted on the fixed large plate (31), the driving member (35) is used to drive the lifting welding frame (32) to rise and fall, and the positioning member (33) is used to position the tray.

9. The pallet blocking and positioning device for a logistics line according to claim 8, characterized in that: The positioning member (33) comprises at least two groups of positioning columns (332) arranged on the lifting welding frame (32), the positioning columns (332) are distributed along the corners of the tray, and corresponding positioning holes for inserting the positioning columns (332) are opened at the bottom of the tray.

10. The pallet blocking and positioning device for a logistics line according to claim 9, characterized in that: Four groups of position-limiting guide blocks (331) are provided at the top of the lifting welding frame (32), and the four groups of position-limiting guide blocks (331) are respectively provided on the circumference of the lifting welding frame (32) and at the corner positions of the battery tray, for limiting the deviation of the battery tray.

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