Transfer trolley

Abstract

The utility model discloses a transfer trolley which comprises a bottom frame and a transfer frame, the transfer frame comprises a first clamping frame, a second clamping frame and a base, the base is installed on the bottom frame, the first clamping frame can rotate and be positioned on the base, the rotating axis of the first clamping frame extends in the horizontal direction, and the second clamping frame is installed on the side, away from the base, of the first clamping frame. A material storage space is formed between the first clamping frame and the second clamping frame, a conveying belt is arranged on the first clamping frame, the conveying direction of the conveying belt serves as the first direction, the horizontal direction perpendicular to the first direction serves as the second direction, the material storage space extends in the first direction, and feeding ports are formed in the positions, close to the conveying starting end of the conveying belt, of the first clamping frame and the second clamping frame. The feeding port communicates with the storage space, and a discharging port communicating with the storage space is formed in one end, in the second direction, of the first clamping frame and one end, in the second direction, of the second clamping frame. According to the transfer trolley, the frame can be conveniently carried, and the frame can be rapidly, stably, safely and accurately transferred.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window frame manufacturing, in particular to a transfer trolley. Background Art

[0002] After door and window frames are manufactured on the production line, they need to be transferred to racks. Currently, this is primarily handled manually. This labor-intensive process can lead to fatigue and injury, increasing costs and the risk of workplace injuries. Furthermore, its slow speed impacts production line continuity and reduces productivity. Furthermore, frames are easily damaged during transport, impacting both quality and aesthetics. Therefore, a transfer trolley is urgently needed to facilitate the rapid, stable, safe, and precise transfer of frames. Utility Model Content

[0003] The purpose of the utility model is to provide a transfer trolley to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve its technical problems is:

[0005] Transfer trolley, which includes:

[0006] chassis;

[0007] The transfer frame includes a first clamping frame, a second clamping frame and a base, the base is installed on the base frame, the first clamping frame can be rotated and positioned on the base, the rotation axis of the first clamping frame extends in the horizontal direction, the second clamping frame is installed on the side of the first clamping frame away from the base, and a storage space is formed between the first clamping frame and the second clamping frame. A conveyor belt is provided on the first clamping frame, with the transmission direction of the conveyor belt as the first direction and the horizontal direction perpendicular to the first direction as the second direction. The storage space extends along the first direction, the first clamping frame and the second clamping frame form a feed port near the starting end of the conveyor belt, the feed port and the storage space are connected to each other, and the first clamping frame and the second clamping frame are formed with a discharge port connected to the storage space at one end along the second direction.

[0008] The transfer trolley in this application is set at the output end of the production line. After the frame is output from the output end of the production line, it is received by the first conveyor belt through the feed port and transported to the storage space. The transfer trolley then moves to the side of the display rack specifically used to store the frame. At this time, the transfer rack is flipped relative to the base frame, driving the frame to flip to a vertical extension. After that, the worker can push the frame out of the storage space and push it into the display rack through the discharge port.

[0009] This technical solution has at least the following beneficial effects: first, the conveyor belt receives the frames output from the production line at the output end of the production line, thereby realizing the automatic reception and preliminary transportation function of the frames from the production line to the storage space of the transfer trolley; second, the first clamping rack and the second clamping rack provide a temporary storage place for the frames, facilitating the subsequent unified transfer operation of the frames; third, the flippable transfer rack can effectively adapt to the requirements of the placement rack for the placement posture of the frames, facilitating the subsequent pushing of the frames from the storage space through the discharge port to the placement rack.

[0010] As a further improvement of the above technical solution, the second clamping frame is provided with a first driving member, which has a first movable end. The first movable end can move in the storage space along the second direction. Driven by the first driving member, the first movable end can push the frame according to a predetermined force, speed and stroke, effectively avoiding unstable factors that may occur in manual pushing, improving the accuracy and reliability of the frame pushing operation, and at the same time reducing dependence on manual operation, significantly improving work efficiency.

[0011] As a further improvement of the above technical solution, the first clamping frame is provided with a plurality of first supporting wheels rotatably at the end position along the first direction in the material storage space, and the plurality of first supporting wheels are arranged along the second direction, and the rotation axes of the plurality of first supporting wheels extend along the up and down directions. The frame transported into the material storage space is effectively supported by the first supporting wheels to prevent the frame from falling due to loss of support, thereby ensuring the safe storage and transfer of the frame on the transfer trolley and reducing the risk of material loss. At the same time, when the frame is pushed at the first movable end, the first supporting wheel can reduce friction, so that the frame can be smoothly pushed into the display rack.

[0012] As a further improvement to the above technical solution, a turret is rotatably provided on the middle part of the first clamping frame along the first direction, the length direction and the rotation axis of the turret both extend along the second direction, a plurality of second supporting rollers are arranged on the turret along the second direction, the plurality of second supporting rollers are rotatably mounted on the turret, and the rotation axes of the plurality of second supporting rollers themselves extend along the up-down direction. When transporting the previous frame, the turret rotates and retracts into the first clamping frame, so that the second supporting rollers are out of position, ensuring that the previous frame enters the material storage space smoothly, avoiding jamming or damage to the frame due to obstruction by the second supporting rollers. When transporting subsequent frames, the turret rotates to reset the second supporting rollers to the material storage space, effectively limiting the position of the next frame, preventing the frame from excessively shaking or displacing in the material storage space, ensuring the orderly arrangement and stable storage of the frames in the material storage space, and improving the accuracy and reliability of the transfer trolley in handling the frames.

[0013] As a further improvement of the above technical solution, the first supporting roller and the second supporting roller are both wrapped with a buffer layer. During the contact between the frame and the supporting roller, the buffer layer can effectively absorb and disperse the impact force exerted on the frame. Whether it is the initial contact collision of the frame during transportation from the conveyor belt to the storage space, or the dynamic impact caused by inertia during the flipping and movement of the transfer rack, the buffer layer can play a buffering and shock-absorbing role to prevent the frame from being deformed, scratched or damaged due to hard contact, thereby protecting the integrity and appearance quality of the frame to the greatest extent and reducing the product loss rate.

[0014] As a further improvement of the above technical solution, the first clamping frame is provided with a guide unit, and the guide unit includes a guide roller, the length direction and the rotation axis of the guide roller are parallel to the first direction, the guide roller and the conveyor belt are staggered in the second direction, and the guide roller can move in and out of the storage space.

[0015] After the guide roller moves into the material storage space, it can lift up the frame located in the material storage space, so that the frame is separated from the conveyor belt, and the conveyor belt perpendicular to the moving direction of the frame no longer blocks the movement of the frame, avoiding problems such as push jamming, frame deformation or damage caused by adhesion or friction between the frame and the conveyor belt, so that the first movable end can push the frame smoothly, significantly improving the convenience and efficiency of the frame pushing operation, and ensuring the stability and reliability of the material transfer process.

[0016] As a further improvement of the above technical solution, a second driving member is provided on the base, which is used to drive the base to slide on the base frame. Through the second driving member and the base, the entire transfer rack is driven to move in the workshop, so that the flip rack is accurately moved to the placement rack, which greatly improves the adaptability and operation accuracy of the transfer trolley, and effectively reduces material transfer errors and production delays caused by inaccurate positioning.

[0017] As a further improvement of the above technical solution, a guide rail is mounted on the chassis, and a guide groove is opened on the base. The guide groove is slidably connected to the guide rail. The guide rail provides a precise and stable path guidance for the sliding of the base on the chassis, effectively limiting the freedom of the base during the sliding process, preventing it from offsetting, shaking or deviating from the predetermined trajectory, etc., ensuring that the transfer frame always maintains a stable and precise movement state during the movement.

[0018] As a further improvement of the above technical solution, a pressure strip and a third driving member are provided on the second clamping frame. The third driving member is used to drive the pressure strip to move in and out of the material storage space. The pressure strip can press and fix the frame entering the material storage space, effectively preventing the frame from shaking or displacing during the movement of the transfer trolley and the flipping of the transfer frame, thereby ensuring the stability and safety of the frame during the entire transfer process, greatly reducing the risk of material damage and ensuring product quality.

[0019] As a further improvement of the above technical solution, an elastic strip is provided on the side of the pressure strip close to the first clamping frame. The elastic strip can effectively reduce the rigid contact between the pressure strip and the frame, avoid scratches, indentations and other damages to the surface of the frame due to hard extrusion, and protect the appearance integrity of the frame. At the same time, the elastic strip can also absorb the impact force caused by vibration, bumps, etc. during the operation of the transfer trolley, prevent the frame from being deformed or damaged due to excessive impact, and further ensure the quality and safety of the frame during the transfer process. 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 description of the drawings required for describing the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also derive other design solutions and drawings based on these drawings without inventive effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the transfer trolley of the present invention when the turning frame is in a horizontal state;

[0022] Figure 2 It is a front view of the transfer trolley of the utility model along the first direction when the turning frame is in a horizontal state;

[0023] Figure 3 This is a schematic diagram of the overall structure of the transfer trolley of the present invention when the turning frame is in a turning state;

[0024] Figure 4 This is a side view of the transfer trolley of the utility model when the turning frame is in a turning state;

[0025] Figure 5 It is a schematic diagram of the overall structure of the guide unit of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 1. Base frame; 11. Guide rail; 2. First clamping frame; 21. First supporting roller; 22. Rotating frame; 23. Second supporting roller; 24. Guide roller; 241. Rocker arm; 25. Conveyor belt; 3. Second clamping frame; 31. First driving member; 311. First movable end; 32. Pressing bar; 33. Third driving member; 4. Base; 41. Second driving member; 5. Storage space; 6. Turning cylinder. DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] After door and window frames are manufactured on the production line, they need to be transferred to racks. Currently, however, this process relies primarily on manual handling. This labor-intensive process can easily lead to worker fatigue and injury, increasing costs and the risk of workplace injuries. Furthermore, its slow speed impacts production line continuity and reduces production efficiency. Furthermore, frames are easily damaged during handling, impacting quality and aesthetics. To address this issue, the present application proposes a transfer trolley that facilitates the transfer of frames, enabling rapid, stable, safe, and precise transfer of frames.

[0033] Reference Figure 1 and Figure 2 , a transfer trolley proposed in this application includes:

[0034] The base frame 1 is provided with a display rack on one side along its length direction;

[0035] The transfer frame includes a first clamping frame 2, a second clamping frame 3 and a base 4. The base 4 is installed on the base frame 1. The first clamping frame 2 is installed on the upper side of the base 4 and can be rotated and positioned on the base 4. The rotation axis of the first clamping frame 2 extends in the horizontal direction. The second clamping frame 3 is installed on the side of the first clamping frame 2 away from the base 4. A storage space 5 is formed between the first clamping frame 2 and the second clamping frame 3. The storage space 5 is used to place the assembled frame. A conveyor belt 25 is provided on the first clamping frame 2, and the transmission direction of the conveyor belt 25 in the storage space 5 is The first direction is horizontal and perpendicular to the first direction as the second direction, the storage space 5 extends along the first direction, the first clamping frame 2 and the second clamping frame 3 form a feed port at a position close to the conveying starting end of the conveyor belt 25, and the feed port is connected to the storage space 5, the first clamping frame 2 and the second clamping frame 3 form a discharge port at one end along the second direction, and the discharge port is connected to the storage space 5, and a placement slot is provided on the placement rack. When the first clamping frame 2 is rotated to a vertical state, the notch of the placement slot is opposite to the discharge port, and the shape of the discharge port is consistent with the shape of the notch of the placement slot.

[0036] Further as a preferred embodiment, a flip cylinder 6 is rotatably installed on the base 4, and the piston rod end of the flip cylinder 6 is hinged to the first clamping frame 2. When the flip cylinder 6 is started, the piston rod of the flip cylinder 6 is extended, pushing the first clamping frame 2 to rotate to a predetermined angle, thereby achieving precise alignment of the storage space 5 and the placement slot.

[0037] Specifically, the first clamping frame 2 and the second clamping frame 3 are both frame-shaped, and the first clamping frame 2 and the second clamping frame 3 are arranged in the vertical direction and parallel to each other. Connecting rods are provided at the four corners of the first clamping frame 2 and on the side of the first clamping frame 2 away from the discharge port, and the ends of the multiple connecting rods away from the first clamping frame 2 are fixedly connected to the second clamping frame 3.

[0038] Reference Figure 1 、 Figure 3 and Figure 4 The initial state of the first clamping frame 2 is horizontal. The first clamping frame 2 can be rotated to a vertical state on the base 4. The placement slot on the placement rack extends in the vertical upward direction, and the notch of the placement slot extends in the second direction. After receiving the frame, the transfer rack moves on the base frame 1 to the side of the placement rack, and then the first clamping frame 2 drives the second clamping frame 3 to rotate to a vertical state on the base 4. At this time, the discharge port can be aligned with the notch of the placement slot, and then the frame stored in the storage space 5 can be pushed out and enters the placement slot, and the transfer of the frame from the production line to the placement rack can be completed.

[0039] Specifically, the first clamping frame 2 is provided with a spacing unit in the middle of the storage space 5, and the spacing unit divides the storage space 5 into two storage parts. The two storage parts are arranged along the first direction, and the storage parts and the frames correspond one to one. The frames enter the placement slot from the corresponding storage parts through the discharge port. Two frames can be stored at one time through the two storage parts. Without exceeding the maximum load-bearing weight of the transfer rack, the number of frames transferred each time is increased, thereby accelerating the efficiency of frame transfer.

[0040] Further as a preferred embodiment, a first driving member 31 is provided on the second clamping bracket 3, and the first driving member 31 has a first movable end 311. The first movable end 311 can move along the second direction in the storage space 5 and toward or away from the discharge port. The starting point of the movement of the first movable end 311 is located on the side of the storage space 5 away from the discharge port, and the end point of the movement is located on the side of the storage space 5 close to the discharge port.

[0041] In this embodiment, the first driving member 31 is a rodless cylinder and an abutment block. The first movable end 311 is the end of the abutment block facing the storage space 5. The rodless cylinder is fixedly mounted on the second clamping frame 3, and the abutment block is mounted on the piston head of the rodless cylinder. When the frame enters the storage space 5, the rodless cylinder is started to drive the abutment block to abut and push the frame to slide in the second direction into the placement slot.

[0042] In other embodiments, the first driving member 31 includes a screw rod, a motor and a slider. The motor is fixedly mounted on the second clamping frame 3, the screw rod is rotatably mounted on the second clamping frame 3 and fixedly connected to the output end of the motor, the screw rod extends along the second direction, the slider is slidably mounted on the second clamping frame 3, the slider is threadedly mounted on the screw rod, and the first movable end 311 is the end of the slider facing the storage space 5. Starting the motor to drive the screw rod to rotate can drive the slider to move on the second clamping frame 3. After the frame enters the storage space 5, starting the motor drives the slider to move so as to abut and push the frame to move until the frame enters the placement slot.

[0043] Further as a preferred embodiment, the first clamping frame 2 is rotatably provided with a plurality of first supporting rollers 21 at the end position along the first direction in the material storage space 5, and the plurality of first supporting rollers 21 are arranged along the second direction. When the first clamping frame 2 is in a horizontal state, the rotation axis and length direction of the plurality of first supporting rollers 21 themselves extend in the up and down directions. When the first clamping frame 2 is in a vertical state, the rotation axis and length direction of the plurality of second supporting rollers 23 themselves extend horizontally and perpendicularly to the second direction. After the conveyor belt 25 drives the frame into the material storage space 5, the frame can be moved to the clamping gap and the material storage section in the front. At this time, the first supporting roller 21 blocks the frame entering the material storage section, so that the frame will not continue to be conveyed, thereby improving the placement stability of the frame when the transfer frame is in a vertical state.

[0044] The spacing unit includes a rotating frame 22, a second supporting wheel 23 and a rotating motor. The rotating frame 22 is installed in the middle of the first clamping frame 2, and the length direction and the rotation axis of the rotating frame 22 are extended along the second direction. The rotating motor is installed on the first clamping frame 2, and the rotating frame 22 is connected to the output end of the rotating motor. A plurality of second supporting wheels 23 are provided, and a plurality of second supporting wheels 23 are arranged on the rotating frame 22 at intervals along the second direction. The plurality of second supporting wheels 23 are rotatably installed on the rotating frame 22. When the transfer frame needs to carry the first frame, the first clamping frame 2 is in a horizontal state, and then the rotating motor drives the rotating frame 22 to rotate, driving the second supporting wheel 23 to rotate, so that the plurality of second supporting wheels 23 enter the first clamping frame 2. At this time, the rotation axis of the second supporting wheel 23 itself extends in the horizontal direction, avoiding the first frame so that the first frame can smoothly enter the bottom of the storage space 5. When the transfer frame needs to carry the second frame, the rotation axis of the plurality of second supporting wheels 23 itself extends in the up and down direction, blocking the second frame and dividing the storage space 5 into two storage parts.

[0045] Further as a preferred embodiment, the first supporting roller 21 and the second supporting roller 23 are both wrapped with a buffer layer made of rubber. The buffer layer can effectively absorb and disperse the impact force exerted on the frame, prevent the frame from being deformed, scratched or damaged due to hard contact, thereby protecting the integrity and appearance quality of the frame to the greatest extent and reducing the product loss rate.

[0046] As a further preferred embodiment, refer to Figure 5 , a guide unit is provided on the first clamping frame 2, and the guide unit includes a guide frame and a guide roller 24. The guide frame is movably installed on the first clamping frame 2, and a plurality of guide rollers 24 are provided. The plurality of guide rollers 24 are rotatably installed on the guide frame, and the plurality of guide rollers 24 are arranged along the second direction. The plurality of guide rollers 24 and the conveyor belt 25 are staggered in the second direction. The length direction and the rotation axis of the guide roller 24 are parallel to the first direction. The guide frame can move along the direction of entering and exiting the storage space 5. The guide frame can move to the side of the guide roller 24 close to the storage space 5 and protrude from the conveyor belt 25. When the guide roller 24 protrudes from the conveyor belt 25 and enters the storage space 5, the guide roller 24 lifts the frame in the storage space 5 and separates it from the conveyor belt 25 to avoid the conveyor belt 25 hindering the transmission of the frame when the discharging transmission direction of the frame is perpendicular to the transmission direction of the conveyor belt 25.

[0047] The guide unit also includes a driving assembly for driving the guide frame to move as a whole. The driving assembly includes a swing cylinder and a rocker arm 241. There are multiple pairs of rocker arms 241. The multiple pairs of rocker arms 241 are arranged in a row along the first direction, and the two rocker arms 241 of the same pair are arranged along the second direction. One end of the multiple rocker arms 241 is rotatably connected to the first clamping frame 2 and the other end is rotatably connected to the guide frame. The swing cylinder is rotatably installed on the first clamping frame 2. The piston rod of the swing cylinder is hinged to the guide frame. When the piston rod of the swing cylinder is extended, it pushes the guide frame to swing in the first clamping frame 2 with the connection between the rocker arm 241 and the first clamping frame 2 as the rotating axis until the guide roller 24 enters the storage space 5 and protrudes from the conveyor belt 25.

[0048] Further as a preferred embodiment, a pair of guide rails 11 are provided on the chassis 1 along its own length direction, and the two guide rails 11 are arranged at intervals along the second direction. A guide groove is provided on the base 4, and one guide groove corresponds to one guide rail 11. The guide groove is slidably connected to the corresponding guide rail 11. A second driving member 41 is provided on the base 4, and the second driving member 41 is used to drive the base 4 to move along the front and rear directions on the chassis 1.

[0049] In this embodiment, the second driving member 41 includes a driving motor and a driving gear. A driving rack is provided on the base frame 1 along its own length direction. The driving motor is fixedly mounted on the base 4. The output end of the driving motor extends downward. The driving gear is sleeved on the output end of the driving motor. The driving gear is engaged with the driving rack. After the driving motor is started, the driving gear rotates relative to the driving rack, so that the driving motor drives the base 4 fixed relative to the driving motor to move on the base frame 1, and then drives the entire transfer frame to move on the base frame 1.

[0050] As a further preferred embodiment, a pressure strip 32 and a third driving member 33 are provided on the second clamping frame 3. The third driving member 33 is used to drive the pressure strip 32 to move on the second clamping frame 3 in the direction of entering and exiting the storage space 5. In this embodiment, the third driving member 33 is a displacement cylinder. A pair of displacement cylinders are provided. The two displacement cylinders are arranged on the second clamping frame 3 along the second direction. The piston rod of the displacement cylinder moves in the direction of entering and exiting the storage space 5, and the pressure strip 32 extends along the second direction. The pressure strip 32 is fixedly installed on the end of the piston rod of the displacement cylinder. After the frame is transported into the storage space 5, the displacement cylinder is started, and the piston rod of the displacement cylinder moves, thereby driving the pressure strip 32 to move as a whole into the storage space 5. Finally, the pressure strip 32 presses against the frame, thereby completely positioning the frame in the storage, so that the frame can remain stable in the storage space 5 regardless of whether the transfer frame is flipping or moving.

[0051] Further as a preferred embodiment, an elastic strip is provided on the side of the pressure strip 32 close to the first clamping frame 2, and the elastic strip extends along the second direction. In this embodiment, the elastic strip can be a rubber strip. The elastic strip can reduce the rigid contact between the pressure strip 32 and the frame, thereby reducing the bending and deformation of the frame caused by the collision between the pressure strip 32 and the frame.

[0052] The above specifically describes the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Transfer trolley, characterized in that: include: Base frame (1); A transfer frame comprises a first clamping frame (2), a second clamping frame (3) and a base (4), wherein the base (4) is mounted on the base frame (1), the first clamping frame (2) can be rotated and positioned on the base (4), the rotation axis of the first clamping frame (2) extends in a horizontal direction, the second clamping frame (3) is mounted on a side of the first clamping frame (2) away from the base (4), a storage space (5) is formed between the first clamping frame (2) and the second clamping frame (3), a conveyor belt is provided on the first clamping frame (2), the transmission direction of the conveyor belt is the first direction, and the horizontal direction perpendicular to the first direction is the second direction, the storage space (5) extends in the first direction, the first clamping frame (2) and the second clamping frame (3) form a feed port near the starting end of the conveyor belt, the feed port and the storage space (5) are connected to each other, and a discharge port connected to the storage space (5) is formed at one end of the first clamping frame (2) and the second clamping frame (3) along the second direction.

2. The transfer trolley according to claim 1, characterized in that: The second clamping frame (3) is provided with a first driving member (31), and the first driving member (31) has a first movable end (311), and the first movable end (311) can move in the material storage space (5) along a second direction.

3. The transfer trolley according to claim 2, characterized in that: The first clamping frame (2) is provided with a plurality of first supporting wheels (21) in a rotation manner in the material storage space (5) and at an end position along the first direction. The plurality of first supporting wheels (21) are arranged along the second direction, and the rotation axes of the plurality of first supporting wheels (21) extend along the up-down direction.

4. The transfer trolley according to claim 3, characterized in that: A rotating frame (22) is rotatably provided on the first clamping frame (2) in the middle of the first direction, the length direction and the rotation axis of the rotating frame (22) both extend in the second direction, and a plurality of second supporting wheels (23) are arranged on the rotating frame (22) along the second direction. The plurality of second supporting wheels (23) are rotatably mounted on the rotating frame (22), and the rotation axes of the plurality of second supporting wheels (23) themselves extend in the up-down direction.

5. The transfer trolley according to claim 4, characterized in that: The first supporting wheel (21) and the second supporting wheel (23) are both wrapped with a buffer layer.

6. The transfer trolley according to claim 1, characterized in that: The first clamping frame (2) is provided with a guide unit, and the guide unit includes a guide roller (24). The length direction and the rotation axis of the guide roller (24) are parallel to the first direction. The guide roller (24) and the conveyor belt are staggered in the second direction. The guide roller (24) can move in and out of the storage space (5).

7. The transfer trolley according to claim 1, characterized in that: A second driving member (41) is provided on the base (4), and the second driving member (41) is used to drive the base (4) to slide on the base frame (1).

8. The transfer trolley according to claim 7, characterized in that: A guide rail (11) is mounted on the base frame (1), and a guide groove is provided on the base (4), wherein the guide groove is slidably engaged with the guide rail (11).

9. The transfer trolley according to claim 1, characterized in that: The second clamping frame (3) is provided with a pressure strip (32) and a third driving member (33), and the third driving member (33) is used to drive the pressure strip (32) to move in and out of the material storage space (5).

10. The transfer trolley according to claim 9, characterized in that: An elastic strip is provided on one side of the pressure strip (32) close to the first clamping frame (2).

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