Feeding device

Abstract

The utility model provides a feeding device which comprises a supporting frame. The first conveying assembly is arranged on the supporting frame and used for conveying the material bags; the transfer transmission assembly is movably arranged on one side of the supporting frame in the conveying direction of the material bags; the clamping assembly is connected with the moving transmission assembly, the clamping assembly and the moving transmission assembly move synchronously, and the clamping assembly clamps the material bag; and the driving assembly is in driving connection with the first conveying assembly and the transfer transmission assembly at the same time and drives the first conveying assembly and the transfer transmission assembly to move synchronously. The problem that in the prior art, due to the fact that the movement speed of a clamping assembly is inconsistent with the conveying speed of a bag body, the lower portion of a material bag is staggered and wrinkled is solved.

Description

Technical Field

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

[0002] In the polysilicon packaging industry, to prevent contamination of the silicon material, the material is often first placed into an M-shaped inner bag, then the bag opening is shaped and vacuum-sealed before being placed into an M-shaped outer bag, where the bag opening is again shaped and vacuum-sealed. Once the inner bag is placed into the outer bag, the outer bag needs to be shaped and vacuum-sealed. Since bag opening shaping and vacuum sealing occur at different stations, the outer bag needs to be shaped before being transported to the vacuum-sealing station. To facilitate subsequent automated palletizing, there are restrictions on the packaging's overall dimensions. Therefore, the shape of the shaped bag opening and the stability of its relative position to the bag body must be maintained during transport, requiring the bag opening to be clamped. Furthermore, since the bag is moving, the clamping assembly holding the bag opening must also be aligned with the bag's conveying speed. If the clamping assembly's movement speed is inconsistent with the bag's transport speed, the lower portion of the bag will become misaligned and wrinkled, affecting the package's overall dimensions. Utility Model Content

[0003] The main purpose of the utility model is to provide a feeding device to solve the problem in the prior art that the movement speed of the clamping assembly and the transportation speed of the bag body are inconsistent, resulting in dislocation and wrinkles in the lower part of the bag.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a feeding device is provided, which includes a support frame; a first conveying assembly, which is arranged on the support frame and is used to convey material bags; a transfer transmission assembly, which is movably arranged on one side of the support frame along the conveying direction of the material bags; a clamping assembly, which is connected to the mobile transmission assembly and moves synchronously with the mobile transmission assembly, and the clamping assembly clamps the material bags; and a driving assembly, which is simultaneously driven and connected to the first conveying assembly and the transfer transmission assembly, and drives the first conveying assembly and the transfer transmission assembly to move synchronously.

[0005] Furthermore, the driving component can reciprocate in both directions, the clamping component can be moved in both directions parallel to the conveying direction of the material bag, the first conveying component includes a one-way bearing, the one-way bearing is driven and connected to the driving component, and the driving component drives the first conveying component to move along the conveying direction of the material bag through the one-way bearing.

[0006] Furthermore, the transfer transmission assembly includes a driving wheel, which is drive-connected to the driving assembly and is arranged at one end of the support frame; a driven wheel, which is arranged at the other end of the support frame; a belt, which is wound around the driving wheel and the driven wheel, and part of the belt protrudes and is drive-connected to the one-way bearing; and an auxiliary wheel, which abuts against the outer side of the belt to limit the direction of the belt.

[0007] Furthermore, the transfer transmission assembly also includes a guide rail, which is arranged on one side of the support frame, and the extension direction of the guide rail is parallel to the moving direction of the transfer transmission assembly; a slider, the slider is slidably connected to the guide rail, and the clamping assembly is connected to the slider.

[0008] Furthermore, the transfer transmission assembly also includes a limit block, there are multiple limit blocks, and the limit blocks are set at both ends of the length direction of the mobile drive assembly.

[0009] Furthermore, the clamping assembly includes a connecting frame, which is connected to the transfer transmission assembly; a clamping frame, which is arranged on the connecting frame, and the length direction of the clamping frame is parallel to the moving direction of the conveying structure; a clamping structure, which has at least two clamping structures, which are arranged on the clamping frame, and along the length direction of the clamping frame, clamping structures are provided at both ends of the clamping frame, and the clamping structures clamp the bag opening of the material bag.

[0010] Furthermore, the clamping assembly also includes an avoidance member, and the clamping frame is connected to the connecting frame through the avoidance member, and the avoidance member drives the clamping frame to move in the horizontal and vertical moving direction of the conveying structure.

[0011] Furthermore, the clamping structure includes a clamping plate, which is movably connected to the clamping frame; and a power member, which is arranged on the clamping frame and drives the clamping plate to move.

[0012] Furthermore, the feeding device also includes a second conveying component, which is arranged at the feed end of the first conveying component. The second conveying component includes a transport structure, which supports and transports the material bag, and the clamping component can move above the transport structure to clamp the material bag; a lifting member, the transport structure is arranged on the lifting member, and the lifting member changes the vertical height of the transport structure.

[0013] Furthermore, the clamping assembly includes a clamping structure that clamps the bag opening; a push plate that is located below the clamping structure and is used to push the side of the bag to push the bag from the second conveying assembly to the first conveying assembly.

[0014] The application of the technical solution of the utility model achieves the following technical effects:

[0015] During the transportation of the material bag, the bag opening needs to be clamped by the clamping assembly, the material bag is transported by the first conveying assembly, and the clamping assembly is transported by the transfer and transmission assembly. Since the transfer and transmission assembly and the first conveying assembly are driven by the same drive and move synchronously, the clamping assembly will move together with the material bag during the transportation of the material bag on the first conveying assembly. The clamping assembly and the material bag are relatively stationary, so that the material in the material bag is in a relatively stable state during the movement, and there is no change in the shape of the packaging material, thereby avoiding dislocation and wrinkles at the bag opening and the lower part of the bag, and reducing the impact on subsequent vacuuming and packaging effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 The figure shows the overall structure of the feeding device of the present application;

[0018] Figure 2 It shows the overall structural diagram of the feeding device of the present application from another direction;

[0019] Figure 3 A schematic structural diagram of a transfer transmission assembly in one embodiment of the present application is shown;

[0020] Figure 4 A schematic structural diagram of a clamping assembly in one embodiment of the present application is shown;

[0021] Figure 5 A schematic structural diagram of the second conveying assembly in one embodiment of the present application is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. Support frame; 20. First transport component; 21. One-way bearing; 30. Transfer transmission component; 31. Driving wheel; 32. Driven wheel; 33. Belt; 34. Auxiliary wheel; 35. Guide rail; 36. Slider; 37. Limit block; 40. Clamping component; 41. Connecting frame; 42. Clamping frame; 43. Clamping structure; 431. Clamping plate; 432. Power component; 44. Avoiding component; 45. Push plate; 50. Drive component; 60. Second transport component; 61. Transport structure; 62. Lifting component; 70. Material bag. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0026] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0027] In order to solve the problem in the prior art that the movement speed of the clamping assembly and the transportation speed of the bag body are inconsistent, resulting in dislocation and wrinkles in the lower part of the bag, the present application provides a feeding device.

[0028] See also Figure 1 and Figure 2 The feeding device includes a feeding frame, a first conveying assembly, a transfer transmission assembly 30, a clamping assembly 40 and a driving assembly 50. The first conveying assembly is arranged on the support frame 10 and is used to convey the material bag 70. The transfer transmission assembly 30 is movably arranged on one side of the support frame 10 along the conveying direction of the material bag 70. The clamping assembly 40 is connected to the mobile transmission assembly and moves synchronously with the mobile transmission assembly. The clamping assembly 40 clamps the material bag 70. The driving assembly 50 is simultaneously driven and connected to the first conveying assembly and the transfer transmission assembly 30, and drives the first conveying assembly and the transfer transmission assembly 30 to move synchronously.

[0029] During the transportation of the material bag 70, the bag opening of the material bag 70 needs to be clamped by the clamping assembly 40. The material bag 70 is transported by the first conveying assembly, and the clamping assembly 40 is transported by the transfer and transmission assembly. Since the transfer and transmission assembly and the first conveying assembly are driven by the same drive and move synchronously, during the transportation of the material bag 70 on the first conveying assembly, the clamping assembly 40 will move together with the material bag 70, and the clamping assembly 40 and the material bag 70 are relatively stationary, so that the material in the material bag 70 is in a relatively stable state during the movement, and there is no change in the shape of the packaged object, thereby avoiding dislocation and wrinkles at the mouth of the material bag 70 and the lower part of the material bag 70, and reducing the impact on subsequent vacuuming and packaging effects.

[0030] The first conveying assembly is preferably a belt 33 conveying assembly, which can support the bag 70 while transporting the bag 70, thereby increasing the stability of the bag 70 during transportation. In addition, because the first conveying assembly and the transfer transmission assembly 30 are driven by the same drive assembly 50, the use of the drive assembly 50 is reduced, thereby reducing costs and operating expenses.

[0031] In the present application, the driving component 50 can reciprocate in both directions, the clamping component 40 can be movably arranged in both directions along the conveying direction parallel to the material bag 70, and the first conveying component includes a one-way bearing 21, which is driven and connected to the driving component 50. The driving component 50 drives the first conveying component to move along the conveying direction of the material bag 70 through the one-way bearing 21.

[0032] Specifically, after transporting one bag 70, the holding assembly needs to be reset to allow the next bag 70 to be transported. This reset is facilitated by the transfer transmission assembly 30 driving the clamping assembly 40 in reciprocating motion. This requires a reciprocating drive. However, because the first conveyor assembly and the transfer transmission assembly 30 are driven by the same drive assembly 50, and the bags 70 cannot move in the opposite direction during transport, a one-way bearing 21 is provided on the first conveyor assembly. When the drive assembly 50 drives the bags 70 and clamping assembly 40 in the forward direction, they move forward together. When the drive assembly 50 drives the clamping assembly 40 in the reverse direction, the one-way bearing 21 prevents the first conveyor assembly from moving, preventing the bags 70 from moving in the reverse direction. The one-way bearing 21 facilitates the reset of the clamping assembly 40 by the transfer transmission assembly 30 without affecting the movement of the bags 70 on the first conveyor assembly. Preferably, the drive assembly 50 is a servo motor to facilitate the reciprocating motion of the transfer transmission assembly.

[0033] See also Figure 3 The transfer transmission assembly 30 includes a driving wheel 31, a driven wheel 32, a belt 33 and an auxiliary wheel 34. The driving wheel 31 is driven and connected to the driving assembly 50. The driving wheel 31 is arranged at one end of the support frame 10, and the driven wheel 32 is arranged at the other end of the support frame 10. The belt 33 is wound around the driving wheel 31 and the driven wheel. Part of the belt 33 protrudes and is driven and connected to the one-way bearing 21. The auxiliary wheel 34 abuts against the outer side of the belt 33 to limit the direction of the belt 33.

[0034] The drive assembly 50 rotates the driving pulley 31, which in turn drives the belt 33 wound around the driving pulley 31 and the driven pulley 32. A portion of the clamping assembly 40 is connected to the belt 33, and the movement of the belt 33 drives the movement of the clamping assembly 40. A portion of the belt 33 protrudes and is positioned by the auxiliary pulley 34. The protruding portion of the belt 33 is used to connect to the first conveying assembly, thereby achieving synchronous drive of the first conveying assembly and the clamping assembly 40.

[0035] In the present application, the transfer transmission assembly 30 also includes a guide rail 35 and a slider 36. The guide rail 35 is arranged on one side of the support frame 10. The extension direction of the guide rail 35 is parallel to the moving direction of the transfer transmission assembly 30. The slider 36 is slidably connected to the guide rail 35, and the clamping assembly 40 is connected to the slider 36.

[0036] Specifically, the guide rail 35 can play a guiding role. Since the clamping assembly 40 is connected to the slider 36, the slider 36 can only interact on the guide rail 35 along the length direction of the guide rail 35, and can constrain the sliding of the clamping assembly 40, so that the holding assembly can only slide along the length direction of the slider 36, thereby increasing the stability of the movement of the clamping assembly 40, avoiding the misalignment and wrinkles at the mouth of the material bag 70 and the lower part of the material bag 70, and reducing the impact on the subsequent vacuuming and packaging effects.

[0037] In the present application, the transfer transmission assembly 30 further includes a limit block 37 , there are multiple limit blocks 37 , and the limit blocks 37 are provided at both ends of the length direction of the mobile drive assembly 50 .

[0038] Since the clamping assembly 40 performs reciprocating motion, in order to ensure that the clamping assembly 40 can move to the same position each time, a limit block 37 is provided. When the clamping assembly 40 abuts against the limit block 37, the clamping assembly 40 cannot continue to move, thereby increasing the stability of the movement of the clamping assembly 40 and increasing the stability of the transportation of the material bag 70.

[0039] See also Figure 4 The clamping assembly 40 includes a connecting frame 41, a clamping frame 42 and a clamping structure 43. The connecting frame 41 is connected to the transfer transmission assembly 30. The clamping frame 42 is arranged on the connecting frame 41. The length direction of the clamping frame 42 is parallel to the moving direction of the first conveying assembly. There are at least two clamping structures 43, and the clamping structures 43 are arranged on the clamping frame 42. Along the length direction of the clamping frame 42, clamping structures 43 are provided at both ends of the clamping frame 42. The clamping structure 43 clamps the bag opening of the material bag 70.

[0040] Specifically, when it is necessary to clamp the bag opening of the material bag 70, the two clamping structures 43 provided on the clamping frame 42 are close to each other, and the bag opening of the material bag 70 is located between the two clamping structures 43 and is clamped by the clamping structures 43. By clamping the bag opening of the material bag 70 by the two clamping structures 43, the bag opening of the material bag 70 can be easily clamped and released.

[0041] In the present application, the clamping assembly 40 further includes an avoidance member 44 , and the clamping frame 42 is connected to the connecting frame 41 via the avoidance member 44 , and the avoidance member 44 drives the clamping frame 42 to move horizontally and perpendicularly to the moving direction of the first conveying assembly.

[0042] Specifically, when the clamping assembly 40 is clamping the bag 70, the clamping assembly 40 and the bag 70 are essentially in the same position. Therefore, when the bag 70 enters the first transport assembly 20 or when the clamping assembly 40 moves in the reverse direction, it may collide with the bag 70, thereby affecting the stability of the items in the bag 70. By providing a avoiding member 44, the avoiding member 44 drives the clamping frame 42 to move transversely and perpendicularly to the movement direction of the first transport assembly. When the bag 70 enters the first transport assembly 20 or when the clamping assembly 40 moves in the reverse direction, the clamping frame 42 moves away from the first transport assembly, avoiding the bag 70. This avoids collisions between the clamping assembly 40 and the bag 70 and increases the stability of the items in the bag 70 during transport. Preferably, the power member 432 is a pneumatic cylinder, which drives the clamping frame 42 toward or away from the first transport assembly 20 by extending or retracting the cylinder piston rod.

[0043] In the present application, the clamping structure 43 includes a clamping plate 431 and a power member 432 . The clamping plate 431 is movably connected to the clamping frame 42 . The power member 432 is disposed on the clamping frame 42 . The power member 432 drives the clamping plate 431 to move.

[0044] Specifically, when the opening of the bag 70 needs to be clamped, the power member 432 drives the clamping plates 431 to move, driving the two clamping plates 431 toward each other, bringing the two clamping plates 431 closer together, reducing the gap between the two clamping plates 431, and clamping the opening of the bag 70 together. When the opening of the bag 70 needs to be loosened, the two clamping plates 431 move away from each other, increasing the distance between the two clamping plates 431 and loosening the opening of the bag 70. The power member 432 driving the clamping plates 431 facilitates clamping and loosening the opening of the bag 70. Preferably, the power member 432 is a cylinder, and the extension or retraction of the cylinder piston rod facilitates the movement of the two clamping plates 431 toward or away from each other.

[0045] See also Figure 5 The feeding device also includes a second conveying component 60, which is arranged at the feeding end of the first conveying component. The second conveying component 60 includes a transport structure 61 and a lifting member 62. The transport structure 61 supports and transports the material bag 70. The clamping component 40 can move above the transport structure 61 to clamp the material bag 70. The transport structure 61 is arranged on the lifting member 62, and the lifting member 62 changes the vertical height of the transport structure 61.

[0046] Specifically, the second conveyor assembly 60 is used to coordinate with other workstations. By adjusting the height of the second conveyor assembly 60, it can be adapted to the height of the discharge end of other workstations, thereby facilitating the reception and transfer of the bags 70. The second conveyor assembly 60 is preferably a belt 33 conveying mechanism, which facilitates the transportation of the bags 70 by means of the belt 33.

[0047] In the present application, the clamping assembly 40 includes a clamping structure 43 and a push plate 45. The clamping structure 43 clamps the bag opening of the material bag 70. The push plate 45 is located below the clamping structure 43. The push plate 45 is used to push the side of the material bag 70, pushing the material bag 70 from the second conveying assembly 60 to the first conveying assembly.

[0048] Specifically, by setting up a push plate 45, during the movement of the clamping assembly 40, the material bag 70 located on the second conveying assembly 60 can be pushed onto the first conveying assembly, so that the second conveying assembly 60 does not need to be provided with a driving component, and the transportation of the material bag 70 on the second conveying assembly 60 is only achieved by pushing the push plate 45, which can save the use of driving components and reduce costs.

[0049] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0050] 1. During the transportation of the material bag 70, the bag opening of the material bag 70 needs to be clamped by the clamping assembly 40. The material bag 70 is transported by the first conveying assembly, and the clamping assembly 40 is transported by the transfer and transmission assembly. Since the transfer and transmission assembly and the first conveying assembly are driven by the same drive and move synchronously, the clamping assembly 40 moves together with the material bag 70 during the transportation of the material bag 70 on the first conveying assembly. The clamping assembly 40 and the material bag 70 are relatively stationary, so that the material in the material bag 70 is in a relatively stable state during the movement, and there is no change in the shape of the packaged object, thereby avoiding dislocation and wrinkles at the bag opening 70 and the lower part of the bag 70, and reducing the impact on the subsequent vacuuming and packaging effects.

[0051] 2. Since the first conveying assembly and the transfer transmission assembly 30 are driven by the same drive assembly 50, the use of the drive assembly 50 is reduced, and the cost and operation and maintenance expenses are reduced.

[0052] 3. The second conveying assembly 60 is used to cooperate with other workstations. By changing the height of the second conveying assembly 60, it can be adapted to the height of the discharge end of other workstations, thereby facilitating the reception and transportation of the material bags 70.

[0053] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0055] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A feeding device, characterized in that, include: Support frame (10); a first conveying assembly, the first conveying assembly being arranged on the support frame (10) and being used for conveying the material bag (70); a transfer transmission assembly (30), the transfer transmission assembly (30) being movably arranged on one side of the support frame (10) along the conveying direction of the material bag (70); a clamping assembly (40), the clamping assembly (40) being connected to the transfer transmission assembly (30) and moving synchronously with the transfer transmission assembly (30), the clamping assembly (40) clamping the material bag (70); A driving assembly (50) is connected to the first conveying assembly and the transfer transmission assembly (30) and drives the first conveying assembly and the transfer transmission assembly (30) to move synchronously.

2. The feeding device according to claim 1, characterized in that: The driving assembly (50) can reciprocate in both directions, the clamping assembly (40) is arranged to be movable in both directions parallel to the conveying direction of the material bag (70), the first conveying assembly includes a one-way bearing (21), the one-way bearing (21) is drivingly connected to the driving assembly (50), and the driving assembly (50) drives the first conveying assembly to move along the conveying direction of the material bag (70) through the one-way bearing (21).

3. The feeding device according to claim 2, characterized in that: The transfer transmission assembly (30) comprises: A driving wheel (31), the driving wheel (31) is drivingly connected to the driving assembly (50), and the driving wheel (31) is arranged at one end of the support frame (10); A driven wheel (32), the driven wheel (32) being arranged at the other end of the support frame (10); a belt (33), the belt (33) being wound around the driving wheel (31) and the driven wheel (32), a portion of the belt (33) being protruding and drivingly connected to the one-way bearing (21); An auxiliary wheel (34) is in contact with the outer side of the belt (33) to limit the direction of the belt (33).

4. The feeding device according to claim 3, characterized in that: The transfer transmission assembly (30) further comprises: A guide rail (35), the guide rail (35) being arranged on one side of the support frame (10), and the extension direction of the guide rail (35) being parallel to the moving direction of the transfer transmission assembly (30); A slider (36) is slidably connected to the guide rail (35), and the clamping assembly (40) is connected to the slider (36).

5. The feeding device according to claim 3, characterized in that: The transfer transmission assembly (30) further includes a limit block (37), wherein the limit blocks (37) are multiple, and the limit blocks (37) are provided at both ends of the length direction of the transfer transmission assembly (30).

6. The feeding device according to claim 1, characterized in that: The clamping assembly (40) comprises: A connecting frame (41), the connecting frame (41) is connected to the transfer transmission assembly (30); a clamping frame (42), the clamping frame (42) being arranged on the connecting frame (41), and the length direction of the clamping frame (42) being parallel to the moving direction of the first conveying assembly; A clamping structure (43), wherein there are at least two clamping structures (43), and the clamping structures (43) are arranged on the clamping frame (42). Along the length direction of the clamping frame (42), the clamping structures (43) are arranged at both ends of the clamping frame (42), and the clamping structures (43) clamp the bag opening of the material bag (70).

7. The feeding device according to claim 6, characterized in that: The clamping assembly (40) further includes a avoiding member (44), and the clamping frame (42) is connected to the connecting frame (41) via the avoiding member (44). The avoiding member (44) drives the clamping frame (42) to move in a direction transversely and perpendicular to the moving direction of the first conveying assembly.

8. The feeding device according to claim 6, characterized in that: The clamping structure (43) comprises: A clamping plate (431), wherein the clamping plate (431) is movably connected to the clamping frame (42); A power piece (432), the power piece (432) is arranged on the clamping frame (42), and the power piece (432) drives the clamping plate (431) to move.

9. The feeding device according to any one of claims 1 to 8, characterized in that: The feeding device further comprises a second conveying assembly (60), wherein the second conveying assembly (60) is arranged at the feeding end of the first conveying assembly, and the second conveying assembly (60) comprises: a transport structure (61), wherein the transport structure (61) supports and transports the material bag (70), and the clamping assembly (40) is capable of moving above the transport structure (61) to clamp the material bag (70); A lifting member (62), the transport structure (61) is arranged on the lifting member (62), and the lifting member (62) changes the vertical height of the transport structure (61).

10. The feeding device according to claim 9, characterized in that: The clamping assembly (40) comprises: a clamping structure (43), wherein the clamping structure (43) clamps the bag opening of the material bag (70); A push plate (45), the push plate (45) is located below the clamping structure (43), and the push plate (45) is used to push the side of the material bag (70), pushing the material bag (70) from the second conveying component (60) to the first conveying component.

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