Pallet floating conveying and lifting device and working method

Abstract

The present application relates to the technical field of pallet conveying, in particular to a kind of pallet floating conveying and lifting device and working method, including base, base middle part is equipped with conveying mechanism, conveying mechanism is equipped with pallet support mechanism, base both sides are equipped with lifting mechanism, pallet support mechanism is connected with lifting mechanism, and floating mechanism is symmetrically arranged in the both sides of pallet support mechanism, the conveying, positioning, lifting of pallet are realized using floating mechanism, and the feeding mode is changed from single box or special material car to the feeding and discharging mode of conventional forklift whole pallet.The structure is not limited by the form of pallet, and plastic pallet and wooden pallet can be used universally.The structure reduces manual operation time, is efficient, avoids using special material car, and makes the transfer of materials between equipment integrated and conventional.

Description

Technical Field

[0001] This invention relates to the field of pallet conveying technology, and in particular to a pallet floating conveying and lifting device and its working method. Background Technology

[0002] There are currently two common methods for unpacking LCD panels in the LCD panel industry:

[0003] (1) Manual feeding of each box. As the size of the LCD panel continues to increase, the manual feeding has changed from one person to two people, which consumes manpower, is time-consuming and inefficient.

[0004] (2) Using a dedicated material cart for material loading, the turnover is relatively time-consuming when the process interval is long, and the number of material carts limits the turnover interval time. Summary of the Invention

[0005] To address the low efficiency issues of manual feeding or dedicated material cart loading in existing technologies, this invention provides an efficient pallet floating conveying and lifting device and its operating method.

[0006] The technical solution adopted by this invention to solve its technical problem is:

[0007] A pallet floating conveying and lifting device includes a base, a conveying mechanism installed in the middle of the base, a pallet support mechanism provided on the conveying mechanism, lifting mechanisms provided on both sides of the base, the pallet support mechanism being connected to the lifting mechanism, and floating mechanisms symmetrically provided on both sides of the pallet support mechanism.

[0008] Furthermore, the pallet support mechanism includes a first support portion and a second support portion, the second support portion being disposed at both ends of the first support portion, and the first support portion and the second support portion being connected by a connector.

[0009] Furthermore, the connector is fixedly connected to the second support portion and slidably connected to the first support portion, and a positioning structure is provided between the connector and the first support portion.

[0010] Furthermore, the floating mechanism includes a base, a clamping assembly, and a floating drive mechanism. The clamping assembly is disposed on the base, and the floating drive mechanism is mounted on one side of the base. The floating drive mechanism is used to drive the base to move along a relative sliding direction parallel to the connector on the first support.

[0011] Furthermore, the pallet floating conveying and lifting device of the present invention also includes a positioning mechanism, which includes a conveying pre-positioning mechanism for conveying and positioning the pallet and a lifting and positioning mechanism for lifting and positioning the pallet.

[0012] Furthermore, the conveying pre-positioning mechanism is mounted on the base. The conveying pre-positioning mechanism includes left and right pre-positioning guide plates that move perpendicular to the conveying direction and front and rear pre-positioning guide plates that move parallel to and perpendicular to the conveying direction. The front and rear pre-positioning guide plates are provided with position sensing devices for detecting the pallet's position.

[0013] Furthermore, the conveying mechanism includes a support base, a conveying drive mechanism, and a limiting mechanism. The conveying drive mechanism is disposed on the support base, and one end of the conveying drive mechanism is connected to a clamping cylinder. One end of the clamping cylinder is equipped with a gripper, which is used to clamp a translation push rod disposed on the first support. The limiting mechanism is connected to one end of the conveying drive mechanism and is used to limit the translation push rod.

[0014] Furthermore, the limiting mechanism includes a limiting block, which has a limiting groove for accommodating the translation push rod. The width of the limiting groove is greater than the diameter of the translation push rod, thus providing a certain amount of leeway for the pallet support mechanism and preventing jamming when the floating mechanism centers the pallet support mechanism.

[0015] Furthermore, the lifting and positioning mechanism includes a left-right positioning mechanism and a front-back positioning mechanism. The left-right positioning mechanism is mounted on the base and includes left-right positioning cylinders mounted on the base for positioning the pallet perpendicular to the conveying direction. The front-back positioning mechanism includes front-back positioning components for positioning the pallet parallel to the conveying direction. The front-back positioning mechanism is mounted on the lifting mechanism, and the front-back positioning components include a first blocking plate and a second blocking plate, which are slidably connected to the lifting mechanism. The front-back positioning mechanism limits the pallet during lifting and lowering, thereby ensuring that the pallet support mechanism can be repositioned by the limiting mechanism after lowering.

[0016] A method of operating the pallet floating conveyor and lifting device as described above includes full-box loading;

[0017] Full box loading includes the following steps:

[0018] S1: The clamping component of the floating mechanism clamps the pallet support mechanism and drives it to move. The clamping cylinder of the conveying mechanism clamps the translation push rod. The pallet filled with material is placed between the left and right prepositioning guide plates on both sides. After the position sensing device on the front and rear prepositioning guide plates senses the material, the pallet filled with material is placed on the pallet support mechanism.

[0019] S2: The pallet filled with materials is placed on the pallet support mechanism, and the conveying mechanism transports the pallet support mechanism to the top of the lifting mechanism; the lifting and positioning mechanism moves the pallet on the pallet support mechanism to its position, and the lifting mechanism rises to lift the pallet support mechanism and the pallet filled with materials to the working position for unpacking.

[0020] S3: After unpacking is completed, the lifting mechanism descends until the pallet support mechanism lands on the floating mechanism. The drive mechanism then moves the empty pallet back to the feeding position along with the pallet support mechanism, and then it is taken out.

[0021] Beneficial effects:

[0022] (1) This invention uses a floating mechanism to realize the conveying, positioning and lifting of pallets, and changes the loading method from single box or special material cart to conventional forklift loading and unloading of whole pallets. This structure is not limited by the pallet type, and can be used with both plastic pallets and wooden pallets. This structure reduces manual operation time, is highly efficient, and avoids the use of special material carts, making the transfer of materials between equipment integrated and conventional.

[0023] (2) A first support part is set in the middle of the pallet support mechanism. The drive mechanism can be connected through the first support part. On the one hand, the overall strength of the pallet mechanism is improved. On the other hand, the structural design is reasonable. It is not necessary to set the floating part and the transmission drive mechanism at the position of the second support part at the same time, so as to prevent motion interference.

[0024] (3) The clamping component of the floating mechanism has two functions: On the one hand, the pallet support mechanism can slide relative to the floating part to realize transportation and other functions. The first clamping member and the second clamping member can center the pallet support mechanism before the pallet is transported. The first clamping member and the second clamping member are provided with bearings at the contact positions with the second support part, that is, the contact positions of the first clamping member and the second clamping member with the second support part are point contact or line contact. When the pallet support mechanism swings, it is easy to straighten the pallet support mechanism and there will be no jamming or other phenomena. On the other hand, the clamping component drives the second support part to move in a direction parallel to the relative sliding direction between the connecting member and the first support part, that is, the size adjustment of the pallet support mechanism is performed by the first clamping member and the second clamping member.

[0025] (4) The limiting mechanism can achieve three functions: First, the limiting mechanism can limit the pallet support mechanism to a set position, so that the clamping cylinder can clamp it during transportation; Second, the width of the limiting groove is greater than the diameter of the translation push rod, so that a certain amount of movement margin is reserved for the pallet support mechanism, and there will be no jamming when the floating mechanism centers the pallet support mechanism; Third, the pallet support mechanism falls from the lifting mechanism into the limiting groove of the limiting block, so as to realize the transition connection between horizontal transportation and vertical lifting, and prevent the pallet support mechanism from deviating after falling, which would cause the clamping cylinder to be unable to clamp and transport it back.

[0026] (5) By using a pre-positioning conveyor, the deviation of the pallet is limited to the size range that the floating mechanism can correspond to. Then, the pallet is precisely positioned by a lifting and positioning mechanism, which ensures the accuracy of the packing or unpacking position and is conducive to automation. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the pallet floating conveying and lifting device of the present invention;

[0029] Figure 2 This is a schematic diagram of the pallet support mechanism;

[0030] Figure 3 This is a schematic diagram of the floating mechanism;

[0031] Figure 4 This is a structural diagram of the pre-positioning mechanism for conveying.

[0032] Figure 5 This is a schematic diagram of the conveying mechanism;

[0033] Figure 6 This is a schematic diagram of the floating drive mechanism;

[0034] Figure 7 This is a schematic diagram of the left and right positioning cylinders;

[0035] Figure 8 This is a structural diagram of the front and rear positioning components;

[0036] Figure 9 This is a schematic diagram of the lifting mechanism.

[0037] Among them, 1. Pallet support mechanism, 11. First support part, 12. Second support part, 13. Connector, 14. Translation push rod, 2. Lifting mechanism, 21. Lifting frame, 3. Conveying mechanism, 31. Support base, 32. Limiting block, 321. Limiting groove, 33. Clamping cylinder, 4. Floating mechanism, 41. Base, 42. Clamping assembly, 43. Floating drive mechanism, 431. Drive motor, 432. Lead screw, 433. Drive block, 5. Conveying pre-positioning mechanism, 51. Left and right pre-positioning guide plates, 52. Front and rear pre-positioning guide plates, 53. Positioning sensor, 6. Lifting and positioning mechanism, 61. Left and right positioning cylinder, 62. Front and rear positioning assembly, 621. First blocking plate, 622. Second blocking plate. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0041] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0042] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0043] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0044] Definitions of terms in this invention: Pallet: A tray used for material transfer, commonly made of plastic or wood; this device can handle both. Packing: The process of placing multiple boxes on a pallet, adding empty boxes one by one, and then placing the product inside each box. Unpacking: The process of removing the product and boxes one by one from a pallet.

[0045] like Figures 1-9 The present invention provides a pallet floating conveying and lifting device, comprising a base, a conveying mechanism 3 installed in the middle of the base, a pallet support mechanism 1 provided on the conveying mechanism 3, lifting mechanisms 2 provided on both sides of the base, the pallet support mechanism 1 being connected to the lifting mechanism 2, and floating mechanisms 4 symmetrically provided on both sides of the pallet support mechanism 1.

[0046] The pallet support mechanism 1 includes a first support part 11 and a second support part 12. The second support part 12 is disposed at both ends of the first support part 11, and the first support part 11 and the second support part 11 are connected by a connector 13.

[0047] The connector 13 is fixedly connected to the second support portion 12 and slidably connected to the first support portion 12. A positioning structure is provided between the connector 13 and the first support portion 11. A linear bearing seat is fixed to the first support portion 11, and the connector 13 is slidably connected to the linear bearing seat. The positioning structure includes a clamping ring, which is divided into two parts to lock the linear bearing seat and the connector 13 respectively. That is, one part of the clamping ring is fixedly connected to the linear bearing seat, and the other part clamps or loosens the connector 13 by screws.

[0048] The floating mechanism 4 includes a base 41, a clamping assembly 42, and a floating drive mechanism 43. The clamping assembly 42 is disposed on the base 41, and the floating drive mechanism 43 is mounted on one side of the base 41. The floating drive mechanism 43 is used to drive the base 41 to move in a relative sliding direction parallel to the connector 13 and the first support portion 11. The second support portion 12 is placed above the base 41. The clamping assembly 42 achieves the centering positioning of the pallet support mechanism 1 by clamping the second support portion 12. The clamping assembly 42 includes a first clamping member and a second clamping member respectively disposed on both sides of the second support portion 12. Bearings are provided at the contact positions between the first clamping member and the second clamping member and the second support portion. The first clamping member and the second clamping member can be, but are not limited to, finger cylinders.

[0049] The floating drive mechanism can be selected, but is not limited to, the following forms: The floating drive mechanism 43 includes a drive motor 431, the drive motor 431 is connected to a lead screw 432, the lead screw 432 is threadedly connected to a drive block 433, the drive block 433 is fixed to the base 41, and the floating mechanism 4 also includes a guide rail mounted on the base, the base 41 slides along the guide rail, and the floating drive mechanism 43 drives the bases 41 on both sides to move closer to each other or further away from each other.

[0050] In addition to centering the pallet support mechanism 1, the floating mechanism 4 can also adaptively adjust the size of the pallet, which is achieved in the following ways:

[0051] 1) The personnel first open the clamping ring on the pallet support mechanism 1, and the floating mechanism 4 moves the center of the pallet support mechanism 1 to fix the pallet support mechanism 1 in the left-right center position.

[0052] 2) When the operator operates the touch screen and switches to the corresponding product size, the floating mechanism 4 drives the first support part 11 of the pallet support mechanism 1 to move, so that the pallet support mechanism 1 switches to the corresponding size.

[0053] 3) Personnel tighten the clamping ring on the pallet support mechanism 1 to complete the switching of the equipment to the corresponding pallet size position.

[0054] The pallet floating conveying and lifting device of the present invention further includes a positioning mechanism, which includes a conveying pre-positioning mechanism 5 for conveying and pre-positioning the pallet and a lifting and positioning mechanism 6 for lifting and positioning the pallet.

[0055] The conveying pre-positioning mechanism 5 is mounted on the base 41. The conveying pre-positioning mechanism 5 includes left and right pre-positioning guide plates 51 that move perpendicular to the conveying direction and front and rear pre-positioning guide plates 52 that move parallel and perpendicular to the conveying direction. The front and rear pre-positioning guide plates 52 are equipped with position sensing devices for detecting the pallet's position. The position sensing device can be a position sensor 53. The function of the conveying pre-positioning mechanism 5 is to limit the pallet loading deviation within the dimensional range that the floating mechanism 1 can correspond to. After the pallet is loaded, the conveying pre-positioning mechanism 5 retracts.

[0056] The conveying mechanism 3 includes a support base 31, a conveying drive mechanism, and a limiting mechanism. The conveying drive mechanism is mounted on the support base 31, and a first support part 11 is positioned above the support base 31. One end of the conveying drive mechanism is connected to a clamping cylinder 33, and one end of the clamping cylinder 33 is equipped with a gripper. A translation push rod 14 is fixed to the first support part 11, and the gripper is used to clamp the translation push rod 14 mounted on the first support part 11. The limiting mechanism is connected to one end of the conveying drive mechanism and is used to limit the translation push rod 14. The limiting mechanism includes a limiting block 32, which has a limiting groove 321 for accommodating the translation push rod 14. The width of the limiting groove 321 is greater than the diameter of the translation push rod 14. Both the base 41 and the support base 31 are equipped with ball bearings, allowing the pallet support mechanism 1 to float on the base 41 and the support base 31. In this invention, the driving mechanism includes a driving chain mounted on a support base 31. The clamping cylinder 33 and the limiting block 32 are both connected to the driving chain and move with the driving chain. The motor connected to the driving chain can achieve forward and reverse rotation, thereby realizing the reciprocating motion of the clamping cylinder 33 and the limiting block 32.

[0057] The limiting mechanism of the present invention can achieve three functions:

[0058] a) Adding a limiting mechanism can limit the pallet support mechanism to a set position, making it easier for the clamping cylinder to clamp during transportation;

[0059] b) The width of the limiting groove 321 is greater than the diameter of the translation push rod 14, thus reserving a certain amount of room for movement for the pallet support mechanism 1, so that there will be no jamming when the floating mechanism 4 centers the pallet support mechanism 1.

[0060] c) The pallet support mechanism falls from the lifting mechanism 6 into the limiting groove 321 of the limiting block 32, thereby realizing the transition connection between horizontal transportation and vertical lifting, and preventing the pallet support mechanism 1 from deviating after falling, which would cause the clamping cylinder to be unable to clamp and transport back.

[0061] The lifting mechanism 2 includes a lifting frame 21. The lifting positioning mechanism 6 includes a left-right positioning mechanism and a front-back positioning mechanism. The left-right positioning mechanism is mounted on the base 41 and includes left-right positioning cylinders 61 mounted on the base 41 for positioning the pallet perpendicular to the conveying direction. In this invention, four sets of left-right positioning cylinder assemblies are provided, two sets on each side, symmetrically arranged. Each positioning cylinder assembly includes upper and lower cylinders. The piston rod of the lower cylinder is connected to a lower positioning plate, and the upper cylinder is fixed on the lower positioning plate. The piston rod of the upper cylinder is fixed to the upper positioning plate. This arrangement increases the positioning stroke and broadens the application range. The front-back positioning mechanism includes front-back positioning components 62 for positioning the pallet parallel to the conveying direction. The front-back positioning mechanism is mounted on the lifting frame 21 of the lifting mechanism 2. The front-back positioning components include a first blocking plate 621 and a second blocking plate 622, which are slidably connected to the lifting mechanism 2. Specifically, the front and rear positioning mechanism includes a motor, and then connects the first blocking plate 621 and the second blocking plate 622 through a transmission device, so that the two move closer to each other or further away from each other. In this invention, the second blocking plate 622 is connected to the transmission device through a lifting cylinder, so as to avoid obstacles during the process of transporting the pallet support mechanism 1 to the lifting mechanism 2.

[0062] A method of operating the pallet floating conveying and lifting device as described above includes full-box loading and full-box unloading;

[0063] Full box loading includes the following steps:

[0064] S11: The clamping component 42 of the floating mechanism 4 clamps the pallet support mechanism 1 and drives it to move, so that the center of the pallet support mechanism 1 is aligned and it is in the feeding position. Then the clamping cylinder 33 of the conveying mechanism 3 clamps the translation push rod 14.

[0065] S12: The pallet filled with material is placed between the left and right prepositioning guide plates 51 on both sides. After the sensors on the front and rear prepositioning guide plates 52 sense it, the pallet filled with material is placed on the pallet support mechanism 1 located at the feeding position.

[0066] S13: The drive mechanism of the conveying mechanism 3 is activated, the pallet support mechanism 1 is conveyed to the top of the lifting mechanism 2, and the clamping cylinder 33 releases the translation push rod 14.

[0067] S14: The left and right positioning mechanisms and the front and rear positioning mechanisms are positioned to align the pallet on the pallet support mechanism 1, so that the pallet is in the center of the four sides.

[0068] S15: The left and right positioning cylinders 61 of the left and right positioning mechanism retract, the front and rear positioning mechanisms are in a clamping state, the lifting mechanism 2 rises, and the pallet support mechanism 1 and the pallet full of materials are lifted to the working position for unpacking.

[0069] S16: After unpacking is completed, there is only an empty pallet above the lifting mechanism 2. At this time, the lifting mechanism 2 descends until the pallet support mechanism 1 falls onto the floating mechanism 4.

[0070] S17: Since the front and rear positioning mechanisms were not opened during the entire unpacking process, the translation push rod 14 of the pallet support mechanism 1 after the lowering fell into the limiting groove 321, and then the clamping cylinder 33 clamped the translation push rod 14.

[0071] S18: The drive mechanism is activated, and the empty pallet is moved back to the feeding position along with the pallet support mechanism 1;

[0072] S 19: Clamping cylinder 33 is released, and the empty pallet is removed;

[0073] The process of unloading a full box includes the following steps:

[0074] S21: The clamping component 42 of the floating mechanism 4 clamps the pallet support mechanism 1 and drives it to move, so that the center of the pallet support mechanism 1 is aligned and it is in the feeding position. Then the clamping cylinder 33 of the conveying mechanism 3 clamps the translation push rod 14.

[0075] S22: An empty pallet is placed between the left and right prepositioning guide plates 51 on both sides. After the sensors on the front and rear prepositioning guide plates 52 detect it, the empty pallet is placed on the pallet support mechanism 1 located at the feeding position.

[0076] S23: The drive mechanism of the conveying mechanism 3 is activated, the pallet support mechanism 1 is conveyed to the top of the lifting mechanism 2, and the clamping cylinder 33 releases the translation push rod 14.

[0077] S24: The left and right positioning mechanisms and the front and rear positioning mechanisms are positioned to align the pallet on the pallet support mechanism 1, so that the pallet is in the center of the four sides.

[0078] S25: The left and right positioning cylinders 61 of the left and right positioning mechanism retract, the front and rear positioning mechanisms are in a clamping state, the lifting mechanism 2 rises, and the pallet support mechanism 1 and the empty pallet are lifted to the working position for packing.

[0079] S26: After the packing is completed, the pallet above the lifting mechanism 2 is filled with materials. At this time, the lifting mechanism 2 descends until the pallet support mechanism 1 falls on the floating mechanism 4.

[0080] S27: Since the front and rear positioning mechanisms were not opened during the entire packing process, the translation push rod 14 of the pallet support mechanism 1 after it was lowered fell into the limiting groove 321, and then the clamping cylinder 33 clamped the translation push rod 14.

[0081] S28: The drive mechanism is activated, and the pallet filled with material is moved back to the feeding position along with the pallet support mechanism 1;

[0082] S29: Clamping cylinder 33 is released, and the pallet filled with material is removed.

[0083] The feeding or unloading of materials onto or from full or empty pallets can be accomplished using a robotic arm or a loading / unloading device compatible with the pallet floating conveyor and lifting device of this application.

[0084] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A floating conveying and lifting device for pallets, characterized in that The system includes a base, on which a conveying mechanism (3) is installed. A pallet support mechanism (1) is provided on the conveying mechanism (3). Lifting mechanisms (2) are provided on both sides of the base. The pallet support mechanism (1) is connected to the lifting mechanism (2). Floating mechanisms (4) are symmetrically provided on both sides of the pallet support mechanism (1). The pallet support mechanism (1) includes a first support part (11) and a second support part (12), and a translation push rod (14) is fixedly provided on the first support part (11). The conveying mechanism (3) includes a support base (31), a conveying drive mechanism, and a limiting mechanism. The conveying drive mechanism is mounted on the support base (31). One end of the conveying drive mechanism is connected to a clamping cylinder (33). One end of the clamping cylinder (33) is equipped with a gripper. The gripper is used to clamp the translation push rod (14) mounted on the first support part (11). The limiting mechanism is connected to one end of the conveying drive mechanism. The limiting mechanism is used to limit the translation push rod (14). The limiting mechanism includes a limiting block (32). The limiting block (32) is provided with a limiting groove (321) for accommodating the translation push rod (14). The pallet support mechanism (1) falls from the lifting mechanism (2) into the limiting groove (321) of the limiting block (32), thereby realizing the transition connection between horizontal transportation and vertical lifting, preventing the pallet support mechanism (1) from deviating after falling and causing the clamping cylinder to be unable to clamp and return. The floating mechanism (4) includes a base (41), a clamping assembly (42) and a floating drive mechanism (43). The clamping assembly (42) is provided with a bearing at the contact position with the second support part (12), so that the clamping assembly (42) and the second support part (12) are in point contact or line contact, and the pallet support mechanism (1) can slide relative to the base (41) in the clamping state of the clamping assembly (42).

2. A pallet floating conveying and lifting device according to claim 1, characterized in that: The pallet support mechanism (1) includes a first support part (11) and a second support part (12). The second support part (12) is disposed at both ends of the first support part (11). The first support part (11) and the second support part (11) are connected by a connector (13).

3. A pallet floating conveying and lifting device according to claim 2, characterized in that: The connector (13) is fixedly connected to the second support (12) and slidably connected to the first support. A positioning structure is provided between the connector (13) and the first support (11).

4. The pallet floating conveying and lifting device according to claim 3, characterized in that: The floating mechanism (4) includes a base (41), a clamping assembly (42), and a floating drive mechanism (43). The clamping assembly (42) is disposed on the base (41), and the floating drive mechanism (43) is installed on one side of the base (41). The floating drive mechanism (43) is used to drive the base (41) to move in a relative sliding direction parallel to the connector (13) and the first support (11).

5. The pallet floating conveying and lifting device according to claim 4, characterized in that: The pallet floating conveying and lifting device also includes a positioning mechanism, which includes a conveying prepositioning mechanism (5) for conveying and positioning the pallet and a lifting and positioning mechanism (6) for lifting and positioning the pallet.

6. The pallet floating conveying and lifting device according to claim 5, characterized in that: The pre-positioning mechanism (5) is mounted on the base (41). The pre-positioning mechanism (5) includes left and right pre-positioning guide plates (51) that move perpendicular to the conveying direction and front and rear pre-positioning guide plates (52) that move parallel to and perpendicular to the conveying direction. The front and rear pre-positioning guide plates (52) are provided with position sensing devices for detecting the pallet's position.

7. The pallet floating conveying and lifting device according to claim 5, characterized in that: The lifting and positioning mechanism (6) includes a left and right positioning mechanism and a front and rear positioning mechanism. The left and right positioning mechanism is set on the base (41). The left and right positioning mechanism includes a left and right positioning cylinder (61) set on the base (41) for positioning the pallet along the direction perpendicular to the conveying direction. The front and rear positioning mechanism includes a front and rear positioning component (62) for positioning the pallet along the direction parallel to the conveying direction. The front and rear positioning mechanism is set on the lifting mechanism (2). The front and rear positioning component includes a first blocking plate (621) and a second blocking plate (622). The first blocking plate (621) and the second blocking plate (622) are slidably connected to the lifting mechanism (2).

8. A method of operating the pallet floating conveying and lifting device as described in any one of claims 1-7, characterized in that: Including full-box loading; The process of loading a full container includes the following steps: S1: The clamping component (42) of the floating mechanism (4) clamps the pallet support mechanism (1) and drives it to move. The clamping cylinder (33) of the conveying mechanism (3) clamps the translation push rod (14). The pallet filled with material is placed between the left and right prepositioning guide plates (51) on both sides. After the position sensing device on the front and rear prepositioning guide plates (52) senses it, the pallet filled with material is placed on the pallet support mechanism (1). S2: The pallet filled with materials is placed on the pallet support mechanism (1), and the conveying mechanism (3) conveys the pallet support mechanism (1) to the top of the lifting mechanism (2); the lifting and positioning mechanism (6) moves the pallet on the pallet support mechanism (1) to the positioning position, and the lifting mechanism (2) rises to lift the pallet support mechanism (1) and the pallet filled with materials to the working position for unpacking; S3: After unpacking is completed, the lifting mechanism (2) descends until the pallet support mechanism (1) falls on the floating mechanism (4), the drive mechanism moves, and the empty pallet is moved back to the feeding position along with the pallet support mechanism (1) and then taken out.

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