Material transfer device

Abstract

The utility model provides a material transfer device, and relates to the technical field of tobacco processing. The material transfer device comprises a rack, a transfer mechanism and a grabbing mechanism; the transfer mechanism is arranged on the rack and comprises a power part and a transfer arm, and the transfer arm is in transmission connection with an output shaft of the power part; the grabbing mechanism comprises a grabbing assembly used for grabbing materials, the grabbing assembly is rotationally arranged on the transfer arm, and when the power piece drives the transfer arm to rotate, the grabbing assembly and the transfer arm rotate synchronously. The material transfer device can ensure the accuracy of the posture and position of the transferred material and improve the transfer efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco processing, in particular to a material transfer device. Background Art

[0002] During the cigarette production process, materials need to be transferred to corresponding conveyor belts according to different production steps. Existing material transfer methods include manual transfer, which can ensure the material's posture and position after transfer, but has low transfer efficiency and high labor costs. Another method uses transfer devices, which can improve transfer efficiency but cannot guarantee the material's posture and position after transfer. The accuracy of the material after transfer is poor, which affects the progress of subsequent processing steps and leads to low overall machine operation efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a material transfer device, which can ensure the accuracy of the posture and position of the transferred material and improve the transfer efficiency.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] Material transfer device, including:

[0006] frame;

[0007] A transfer mechanism is provided on the frame, the transfer mechanism comprising a power member and a transfer arm, the transfer arm being transmission-connected to an output shaft of the power member;

[0008] The grabbing mechanism includes a grabbing assembly for grabbing materials. The grabbing assembly is rotatably arranged on the transfer arm. When the power member drives the transfer arm to rotate, the grabbing assembly rotates synchronously with the transfer arm.

[0009] As a further technical solution, the grabbing mechanism further includes a transmission assembly, and the grabbing assembly is connected to the output shaft of the power member through the transmission assembly.

[0010] As a further technical solution, the transmission assembly includes a first transmission wheel, a second transmission wheel and a transmission belt. The first transmission wheel is transmission-connected to the output shaft of the power component, the second transmission wheel is fixedly connected to the grabbing assembly, and the transmission belt is transmission-connected to the first transmission wheel and the second transmission wheel.

[0011] As a further technical solution, the grabbing assembly includes a manipulator and a connecting rod, the connecting rod is rotatably connected to the transfer arm, the second transmission wheel is fixedly mounted on the connecting rod, and the manipulator is connected to the lower end of the connecting rod.

[0012] As a further technical solution, the grabbing assembly also includes a connecting piece and a connecting bearing. An avoidance channel is provided on the transfer arm. The connecting piece is fixedly connected to the upper end face of the transfer arm corresponding to the avoidance channel. The upper end of the connecting rod passes through the avoidance channel and is rotatably connected to the connecting piece. The connecting bearing is sleeved on the connecting rod and abuts against the inner wall of the avoidance channel.

[0013] As a further technical solution, the material transfer device also includes a tensioning assembly, which includes a tensioning wheel and a mounting piece. The mounting piece is movably connected to the transfer arm, the tensioning wheel is rotatably connected to the mounting piece, and the tensioning wheel is tightly and rollingly fitted with the transmission belt.

[0014] As a further technical solution, the tensioning assembly also includes a tensioning adjustment member, which is fixedly connected to the transfer arm, and the adjustment rod of the tensioning adjustment member is transmission-connected to the mounting member.

[0015] As a further technical solution, the power member is configured as a rotating drive member, the output shaft of the rotating drive member is vertically arranged to the transfer arm, and the transfer arm and the first transmission wheel are both transmission-connected to the output shaft of the rotating drive member.

[0016] As a further technical solution, the grabbing mechanism also includes a grabbing assembly grabbing drive member, the grabbing assembly is rotatably arranged on the transfer arm, the output shaft of the grabbing drive member is transmission-connected to the grabbing assembly, and the grabbing drive member operates synchronously with the power member.

[0017] As a further technical solution, two transfer arms are provided, both of which are transmission-connected to the output shaft of the power component and are spaced apart along the output shaft of the power component. The two transfer arms are fixedly connected by a synchronizing member, and the grabbing assembly is rotationally connected to the two transfer arms.

[0018] Compared with the existing technology, the material transfer device provided by the utility model has the following technical advantages:

[0019] Since the transfer arm is connected to the output shaft of the power component through a transmission, and the grabbing assembly is rotatably mounted on the transfer arm, when materials need to be transferred, the grabbing assembly first grabs the materials, and then the power component is activated to drive the transfer arm to rotate. During this process, the grabbing assembly revolves with the transfer arm. At the same time, since the grabbing assembly is rotatably mounted on the transfer arm, while the grabbing assembly revolves with the transfer arm, the grabbing assembly rotates around the output shaft of the power component and relative to the transfer arm. Therefore, during the entire material transfer process, while achieving material transfer, changes in the posture and position of the materials after transfer can be avoided, thereby improving both the accuracy and efficiency of material transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0021] Figure 1 This is a front view of a material transfer device provided by an embodiment of the present utility model;

[0022] Figure 2 It is a top view of the material transfer device provided by an embodiment of the present utility model.

[0023] In the picture:

[0024] 10. Materials;

[0025] 100, rack;

[0026] 200, transfer mechanism; 210, power component; 220, transfer arm;

[0027] 300, grabbing mechanism; 310, grabbing assembly; 311, manipulator; 312, connecting rod; 313, connecting piece; 320, transmission assembly; 321, first transmission wheel; 322, second transmission wheel; 323, transmission belt;

[0028] 400, tensioning assembly; 410, tensioning pulley; 420, mounting member; 421, adjustment avoidance hole; 430, tensioning adjustment member; 431, adjustment rod. DETAILED DESCRIPTION

[0029] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0030] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0031] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0032] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0033] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0034] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0035] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0036] Combine Figure 1 and Figure 2 As shown, the material transfer device provided in this embodiment is used to complete the movement of materials and ensure the accuracy of the posture and position of the transferred materials, thereby improving the transfer efficiency.

[0037] Example 1

[0038] The material transfer device includes a frame 100, a transfer mechanism 200 and a grabbing mechanism 300; the transfer mechanism 200 is arranged on the frame 100, the transfer mechanism 200 includes a power part 210 and a transfer arm 220, and the transfer arm 220 is transmission-connected to the output shaft of the power part 210; the grabbing mechanism 300 includes a grabbing component 310 for grabbing the material 10, the grabbing component 310 is rotatably arranged to transfer the arm 220, and when the power part 210 drives the transfer arm 220 to rotate, the grabbing component 310 rotates synchronously with the transfer arm 220.

[0039] Since the transfer arm 220 is connected to the output shaft of the power member 210 by transmission, and the grabbing assembly 310 is rotated to set the transfer arm 220. When the material 10 needs to be transferred, the grabbing assembly 310 first grabs the material 10, and then the power member 210 is started to drive the transfer arm 220 to rotate. During this process, the grabbing assembly 310 revolves with the transfer arm 220; at the same time, since the grabbing assembly 310 is rotated to set the transfer arm 220, while the grabbing assembly 310 revolves with the transfer arm 220, the grabbing assembly 310 revolves around the output shaft of the power member 210 and rotates relative to the transfer arm 220. Therefore, during the entire material 10 transfer process, while the material 10 is transferred, the posture and position of the material 10 after being transferred can be avoided from changing, thereby improving the accuracy of the material 10 transfer and the efficiency of the material 10 transfer.

[0040] Preferably, the grabbing mechanism 300 further includes a transmission assembly 320, and the grabbing assembly 310 is connected to the output shaft of the power member 210 through the transmission assembly 320. Figure 1 and Figure 2As shown, such an arrangement, on the one hand, can realize the synchronous rotation and revolution of the grabbing component 310, and ensure that the rotation angle and the revolution angle of the grabbing component 310 are the same, thereby further improving the transfer accuracy of the material 10; on the other hand, by replacing the same power part 210, the rotation and revolution of the grabbing component 310 can be realized at the same time, ensuring the transfer effect of the material 10 while reducing the setting of other power sources, making the structure of the material transfer device more concise, thereby reducing the production cost and use cost.

[0041] Preferably, the transmission assembly 320 includes a first transmission wheel 321, a second transmission wheel 322 and a transmission belt 323. The first transmission wheel 321 is transmission-connected to the output shaft of the power component 210, the second transmission wheel 322 is fixedly connected to the grabbing assembly 310, and the transmission belt 323 is transmission-connected to the first transmission wheel 321 and the second transmission wheel 322.

[0042] Combine Figure 1 and Figure 2 As shown, in this embodiment, the first transmission wheel 321 and the second transmission wheel 322 are both configured as gears, the transmission belt 323 is configured as a ring, and transmission teeth are provided on the inner side, and the first transmission wheel 321 and the second transmission wheel 322 are both engaged with the transmission belt 323. Taking the clockwise rotation of the transfer arm 220 to realize the transfer of material 10 as an example, when the material 10 needs to be transferred, the grabbing assembly 310 first grabs the material 10, and then the power part 210 drives the transfer arm 220 to rotate clockwise, and the grabbing assembly 310 arranged on the transfer arm 220 revolves synchronously with the transfer arm 220 relative to the output shaft of the power part 210; in this process, the first transmission wheel 321 rotates clockwise relative to the output shaft of the power part 210, and the first transmission wheel 321 engages with the corresponding transmission teeth on the transmission belt 323 to drive the transmission belt 323 to rotate clockwise, thereby driving the first transmission wheel 321 to rotate clockwise, and since the second transmission wheel 322 is fixedly connected to the grabbing assembly 310, the first transmission wheel 321 can drive the grabbing assembly 310 to rotate clockwise, that is, the grabbing assembly 310 can achieve synchronous rotation relative to the output shaft of the power part 210. Thus, during the entire material 10 transfer process, the material 10 can be transferred while avoiding changes in its posture and position after transfer, thereby improving both the accuracy and efficiency of transferring the material 10. Furthermore, since the output shaft of the power member 210 and the gripping assembly 310 are connected by a gear transmission, and since gear transmission has high transmission accuracy and efficiency, the accuracy and efficiency of transferring the material 10 can be further improved.

[0043] In some other embodiments, the transfer arm 220 can be arranged to rotate counterclockwise to achieve the transfer of the material 10, and at the same time, the grabbing assembly 310 rotates counterclockwise relative to the output shaft of the power member 210 in synchronization. Alternatively, the transfer arm 220 rotates counterclockwise or clockwise according to actual needs to achieve the transfer of the material 10, and at the same time, the grabbing assembly 310 follows the transfer arm 220 and rotates counterclockwise or clockwise relative to the output shaft of the power member 210 in synchronization. Alternatively, according to actual needs, a chain drive or a belt drive can be arranged between the output shaft and the grabbing assembly 310, so as to achieve the technical purpose of achieving synchronous rotation relative to the output shaft of the power member 210 while following the transfer arm 220 in revolution.

[0044] Furthermore, the grabbing assembly 310 includes a manipulator 311 and a connecting rod 312 , the connecting rod 312 is rotatably connected to the transfer arm 220 , the second transmission wheel 322 is fixedly sleeved on the connecting rod 312 , and the manipulator 311 is connected to the lower end of the connecting rod 312 .

[0045] Specifically, the manipulator 311 is used to grasp the material 10, and the connecting rod 312 is connected to the power member 210 through the transmission assembly 320. That is, while the manipulator 311 orbits around the output shaft of the power member 210 as the transfer arm 220 orbits, it can also rotate around the output shaft of the power member 210 driven by the transmission assembly 320, thereby preventing the posture and position of the grasped material 10 from changing after transfer, thereby improving the transfer accuracy of the material 10. The specific structure of the manipulator 311 is not the focus of this embodiment and is not specifically limited in this embodiment. Reference can be made to the existing technical settings.

[0046] Furthermore, the grabbing assembly 310 also includes a connecting piece 313 and a connecting bearing. An avoidance channel (not shown in the figure) is provided on the transfer arm 220. The connecting piece 313 is fixedly connected to the upper end face of the transfer arm 220 corresponding to the avoidance channel. The upper end of the connecting rod 312 passes through the avoidance channel and is rotatably connected to the connecting piece 313. The connecting bearing is sleeved on the connecting rod 312 and abuts against the inner wall of the avoidance channel. In this way, by providing the connecting piece 313, the connection strength and connection stability of the connecting rod 312 connected to the transfer arm 220 are improved, thereby ensuring the accuracy of the material 10 after being transferred; by providing the connecting bearing, the connection strength and connection stability of the connecting rod 312 are improved, and the stability and synchronization of the connecting rod 312 when rotating with the output shaft of the power part 210 are improved. The specific structure of the connecting bearing is not the focus of this embodiment and is not specifically limited in this embodiment. The prior art settings may be referred to.

[0047] Furthermore, the material transfer device also includes a tensioning assembly 400, which includes a tensioning wheel 410 and a mounting member 420. The mounting member 420 is movably connected to the transfer arm 220, the tensioning wheel 410 is rotationally connected to the mounting member 420, and the tensioning wheel 410 is tightly and rollingly fitted with the transmission belt 323.

[0048] Combine Figure 1 and Figure 2 As shown, the mounting member 420 is provided with an adjustment avoidance hole 421, which is set as an elongated hole, and the extending direction of the adjustment avoidance hole 421 is perpendicular to the connecting line of the first transmission wheel 321 and the second transmission wheel 322. The adjusting screw (not shown in the figure) passes through the adjustment avoidance hole 421 and is connected to the transport arm 220, so as to realize the movable connection of the mounting member 420 to the transport arm 220. Since the tensioning wheel 410 and the transmission belt 323 are tightly and rollingly engaged, the transmission effect of the transmission belt 323 can be improved, thereby ensuring the synchronization of the rotation and revolution of the manipulator 311; since the mounting member 420 is movably connected to the transport arm 220 through the elongated hole and the adjusting screw, the relative position of the mounting member 420 and the transport arm 220 can be adjusted by twisting the adjusting screw according to actual needs, thereby changing the tightening force of the tensioning wheel 410 on the transmission belt 323, so as to adaptively change the transmission effect of the transmission belt 323.

[0049] Furthermore, the tensioning assembly 400 also includes a tensioning adjustment member 430 , which is fixedly connected to the transfer arm 220 , and an adjustment rod 431 of the tensioning adjustment member 430 is transmission-connected to the mounting member 420 .

[0050] Specific combination Figure 2 As shown, in this embodiment, the tensioning adjustment member 430 is set as a reference member and is fixedly connected to the transport arm 220. The adjustment rod 431 is movably set on the reference member along the extension direction of the adjustment avoidance hole 421 and is in transmission connection with the mounting member 420, and the adjustment rod 431 is set horizontally. By adjusting the relative position of the adjustment rod 431 and the reference member, the relative position of the mounting member 420 on the transport arm 220 is changed, thereby changing the tightening force of the tensioning wheel 410 on the transmission belt 323; in this process, the reference member and the adjustment rod 431 cooperate with each other to ensure the adjustment accuracy while avoiding relative displacement of the mounting member 420 in the height direction with the transport arm 220.

[0051] In other embodiments, the ends of the adjustment rod 431 are fixedly connected to the reference member and the mounting member 420, respectively, and the adjustment rod 431 is configured as a telescopic rod. Alternatively, the tension adjustment member 430 is configured as a push rod motor, the motor shaft of which is configured as the adjustment rod 431, and the motor shaft of the push rod motor is directly connected to the mounting member 420. The position of the tensioning wheel 410 is automatically adjusted by automatically extending and retracting the motor shaft.

[0052] Furthermore, the power member 210 is configured as a rotary drive member, the output shaft of the rotary drive member is vertically arranged with the transport arm 220, and the transport arm 220 and the first transmission wheel 321 are both transmission-connected to the output shaft of the rotary drive member. Figure 1 As shown, the rotating drive member is fixedly connected to the frame 100 and is located above the transfer arm 220 and the first transmission wheel 321. This arrangement ensures the rotation and revolution effects of the grabbing assembly 310 relative to the output shaft of the power member 210; at the same time, since the rotating drive member is located above the transfer arm 220 and the first transmission wheel 321, the space utilization above the transfer arm 220 and the first transmission wheel 321 can be improved.

[0053] In some other embodiments, the power member 210 is configured as a telescopic drive member (not shown in the figure), an auxiliary shaft (not shown in the figure) is rotatably arranged on the frame, the axis of the auxiliary shaft is arranged perpendicular to the upper end face of the frame, the telescopic drive member is arranged on one side of the auxiliary shaft, the transfer arm 220 and the first transmission wheel 321 are both fixedly connected to the auxiliary shaft, the telescopic drive member is arranged on the frame 100, and is located on one side of the auxiliary shaft; a drive rack (not shown in the figure) is fixedly arranged on the output shaft of the telescopic drive member, and a transmission gear (not shown in the figure) is fixedly sleeved on the auxiliary shaft, and the drive rack and the transmission gear are engaged; when the telescopic drive member is running, the drive rack and the transmission gear are engaged to drive the auxiliary shaft to rotate, thereby realizing the self-rotation and revolution of the grabbing assembly 310 relative to the auxiliary shaft through the power assembly and the transfer arm 220.

[0054] Preferably, two transfer arms 220 are provided, both of which are transmission-connected to the output shaft of the power member 210 and are spaced apart along the output shaft of the power member 210. The two transfer arms 220 are fixedly connected by a synchronizing member, and the grabbing assembly 310 is rotationally connected to the two transfer arms 220.

[0055] Combine Figure 1 and Figure 2 As shown, the first ends of the two transport arms 220 are both transmission-connected to the output shaft of the power member 210, and the second ends of the two transport arms 220 are both provided with an avoidance channel, the center lines of the two avoidance channels are coaxially arranged, and the two avoidance channels are both provided with connecting bearings, and the two connecting bearings are both arranged in the middle of the connecting rod 312; such an arrangement further improves the transmission effect of the grabbing assembly 310, thereby ensuring the rotation effect and rotation stability of the grabbing assembly 310 relative to the revolution and rotation of the output shaft of the power member 210. And because the two transport arms 220 are fixedly connected by a synchronizer, the synchronization of the two transport arms 220 when rotating around the output shaft of the power member 210 can be improved, and the bearing effect of the grabbing assembly 310 can be improved, so as to further improve the rotation effect and rotation stability of the grabbing assembly 310 during rotation and revolution.

[0056] Example 2

[0057] Preferably, the grabbing mechanism 300 also includes a grabbing assembly 310 and a grabbing drive member. The grabbing assembly 310 is rotatably arranged on the transfer arm 220. The output shaft of the grabbing drive member is transmission-connected to the grabbing assembly 310, and the grabbing drive member and the power member 210 operate synchronously.

[0058] In this embodiment, the structures and working principles of the other components are the same as those in the first embodiment and will not be described in detail here. The difference is that in this embodiment, the transmission assembly 320 is not provided, and a grabbing drive member is provided at the second end of the transfer arm 220. The output shaft of the grabbing drive member is perpendicularly arranged to the second end of the transfer arm 220 and is directly connected to the first end of the connecting rod 312. When the grabbing assembly 310 grabs the material 10 and needs to be transferred, the grabbing drive member is started synchronously with the power member 210, and the output shaft of the grabbing drive member and the output shaft of the power member 210 operate synchronously, thereby achieving synchronous rotation and revolution of the manipulator 311. In order to further improve the synchronization of the rotation and revolution of the manipulator 311, the grasping drive member and the power member 210 are controlled by the same controller, and angle sensors are provided on both the grasping drive member and the power member 210 to respectively sense the rotation angles of the output shaft of the grasping drive member and the output shaft of the power member 210. During the same grasping process, when the rotation angles of the grasping drive member and the power member 210 are different, the two angle sensors will issue prompts so that the operator can make timely corrections to the grasping drive member and the power member 210.

[0059] The specific material 10 grasped by the manipulator 311 is subject to actual conditions and is not specifically limited in this solution.

[0060] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Material transfer device, characterized in that, include: Rack(100); A transfer mechanism (200) is provided on the frame (100), comprising a power member (210) and a transfer arm (220), wherein the transfer arm (220) is transmission-connected to an output shaft of the power member (210); The grabbing mechanism (300) comprises a grabbing assembly (310) for grabbing materials (10). The grabbing assembly (310) is rotatably arranged on the transfer arm (220). When the power member (210) drives the transfer arm (220) to rotate, the grabbing assembly (310) rotates synchronously with the transfer arm (220).

2. The material transfer device according to claim 1, characterized in that: The grabbing mechanism (300) further includes a transmission assembly (320), and the grabbing assembly (310) is connected to the output shaft of the power member (210) through the transmission assembly (320).

3. The material transfer device according to claim 2, characterized in that: The transmission assembly (320) comprises a first transmission wheel (321), a second transmission wheel (322) and a transmission belt (323); the first transmission wheel (321) is transmission-connected to the output shaft of the power member (210); the second transmission wheel (322) is fixedly connected to the grabbing assembly (310); and the transmission belt (323) is transmission-connected to the first transmission wheel (321) and the second transmission wheel (322).

4. The material transfer device according to claim 3, characterized in that: The grabbing assembly (310) includes a manipulator (311) and a connecting rod (312), wherein the connecting rod (312) is rotatably connected to the transfer arm (220), the second transmission wheel (322) is fixedly sleeved on the connecting rod (312), and the manipulator (311) is connected to the lower end of the connecting rod (312).

5. The material transfer device according to claim 4, characterized in that: The grabbing assembly (310) further includes a connecting member (313) and a connecting bearing. An avoidance channel is provided on the transfer arm (220). The connecting member (313) is fixedly connected to the upper end surface of the transfer arm (220) corresponding to the avoidance channel. The upper end of the connecting rod (312) passes through the avoidance channel and is rotatably connected to the connecting member (313). The connecting bearing is sleeved on the connecting rod (312) and abuts against the inner wall of the avoidance channel.

6. The material transfer device according to claim 3, characterized in that: The material transfer device further comprises a tensioning assembly (400), wherein the tensioning assembly (400) comprises a tensioning wheel (410) and a mounting member (420), wherein the mounting member (420) is movably connected to the transfer arm (220), the tensioning wheel (410) is rotationally connected to the mounting member (420), and the tensioning wheel (410) and the transmission belt (323) are in tight rolling engagement.

7. The material transfer device according to claim 6, characterized in that: The tensioning assembly (400) further comprises a tensioning adjusting member (430), wherein the tensioning adjusting member (430) is fixedly connected to the transport arm (220), and an adjusting rod (431) of the tensioning adjusting member (430) is transmission-connected to the mounting member (420).

8. The material transfer device according to claim 3, characterized in that: The power member (210) is configured as a rotary drive member, the output shaft of the rotary drive member is vertically arranged to the transfer arm (220), and the transfer arm (220) and the first transmission wheel (321) are both transmission-connected to the output shaft of the rotary drive member.

9. The material transfer device according to claim 1, characterized in that: The grabbing mechanism (300) further comprises a grabbing assembly (310) and a grabbing driving member, wherein the grabbing assembly (310) is rotatably arranged on the transport arm (220), the output shaft of the grabbing driving member is transmission-connected to the grabbing assembly (310), and the grabbing driving member and the power member (210) operate synchronously.

10. The material transfer device according to any one of claims 1 to 9, characterized in that: Two transfer arms (220) are provided, and both transfer arms (220) are transmission-connected to the output shaft of the power member (210) and are spaced apart along the output shaft of the power member (210). The two transfer arms (220) are fixedly connected via a synchronizing member, and the grabbing assembly (310) is rotationally connected to the two transfer arms (220).

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