A feeding device of a plate feeding machine

Abstract

This application relates to the technical field of board loading machine equipment and provides a loading device for a board loading machine. In use, the loading device for the board loading machine provided by this application involves placing the board bin at one end of the conveying unit in the conveying direction. A single board is aligned and stacked on the conveying unit. The controller controls the operation of the conveying unit, which transports the board to the slots within the board bin. The controller then controls the operation of the lifting unit, raising / lowering the conveying unit to a height corresponding to the distance between the board and the slots in the board bin. The single board is then aligned and stacked on the conveying unit again. This process is repeated to complete the board storage process in the board bin. Workers only need to align and stack the board on the conveying unit and control the controller to operate the conveying and lifting units, eliminating the need for repeated bending or lifting, thus reducing labor costs.

Description

Technical Field

[0001] This application belongs to the technical field of board loading machine equipment, and particularly relates to a feeding device for a board loading machine. Background Technology

[0002] A pallet loading machine, also known as a drop plate machine, cascade plate machine, or PCB (Printed Circuit Board) feeder, is a type of industrial automation equipment primarily used in brick factory production lines and SMT (Surface Mount Technology) production lines for conveying bare PCB boards. This equipment consists of a first frame, lifting system, pushing system, alignment system, rollers, board hopper, positioning frame, and control system. It features a fully automated mechanical design, requires no special foundation, and can be placed directly on hardened surfaces. The pallet loading machine automatically executes the board feeding, lifting, and conveying process, carrying 20-30 pallets continuously, replacing manual handling operations.

[0003] However, existing silos are generally box structures with openings on both sides. The two inner side walls of the box are provided with slots or protrusions at intervals in the height direction to allow the boards to be inserted and stacked.

[0004] In existing board loading machines, when feeding materials into the board hopper, production personnel still need to manually stack and insert the boards sequentially from the height of the board hopper. After insertion, the board hopper is sent into the board feeding system of the board loading machine for board feeding, lifting and conveying. When inserting boards into the board hopper, production personnel need to perform continuous bending or lifting movements, which is very labor-intensive. Utility Model Content

[0005] This application provides a feeding device for a board loading machine, which can solve the problem that when the existing board loading machine feeds materials into the board silo, production personnel need to continuously bend over or raise their arms to manually stack and insert the boards sequentially from the height direction of the board silo, which is labor-intensive.

[0006] This application provides a feeding device for a board loading machine, including a lifting unit, a conveying unit, and a controller. The control terminal of the lifting unit is electrically connected to the controller, and the control terminal of the conveying unit is also electrically connected to the controller. The lifting unit is used to move the conveying unit along the height direction of the board bin, and the conveying unit is used to carry and transport the board into the board bin.

[0007] Optionally, the conveying unit includes a first frame, a first conveyor belt mechanism disposed on the first frame, and a first rotary drive device. The first frame is connected to the output end of the lifting unit and can be driven by the lifting unit to move along the height direction of the silo. The control end of the first rotary drive device is electrically connected to the controller and is used to drive the first conveyor belt mechanism to move so as to move the plates on the first conveyor belt mechanism toward the silo.

[0008] Optionally, the first conveyor belt mechanism includes:

[0009] Two drive rollers are spaced apart along the length of the first frame, and both ends of the drive rollers are rotatably connected to the two inner sidewalls of the first frame, respectively.

[0010] The transmission belt is fitted onto two transmission rollers, and the transmission belt can move under the drive of the two transmission rollers;

[0011] The output shaft of the first rotary drive device is connected to a transmission roller to drive the transmission roller to rotate.

[0012] Optionally, the transmission roller has a transmission gear, and the side of the transmission belt near the transmission roller is provided with a corresponding transmission tooth structure, the teeth of the transmission gear being adapted to the transmission tooth structure.

[0013] Optionally, each drive roller is fitted with two drive gears, which are located at both ends of the drive roller. There are also two drive belts, which are fitted onto the drive gears located on the same side of the two drive rollers, with an installation position spaced between the two drive belts.

[0014] Optionally, the conveying unit further includes a pushing component, the control end of which is electrically connected to the controller. The pushing component is disposed within the first frame, and the output end of the pushing component is located within the mounting position. The output end is retractable to push against the plates fed into the silo by the first conveyor belt mechanism.

[0015] Optionally, the pushing component includes a bracket and a linear motion device mounted on the bracket. The drive end of the linear motion device is electrically connected to the controller. The bracket is connected to the inner wall of the first frame. The linear motion device is mounted on the bracket and located in the mounting position. The output end of the linear motion device can extend and retract along the length of the first frame to push against the plates fed into the silo by the first conveyor belt mechanism.

[0016] Optionally, the conveying unit also includes a sensing device, the working end of which faces the extension direction of the output end of the linear motion device, and the control end of the sensing device is electrically connected to the controller.

[0017] Optionally, the lifting unit includes a lead screw and slider mechanism. The drive end of the lead screw and slider mechanism is electrically connected to the controller. The lead screw and slider mechanism includes a lead screw whose length direction is consistent with the height direction of the first frame. A slider capable of linear reciprocating motion along the length direction of the lead screw is sleeved on the lead screw. The slider is plate-shaped, and the first frame is mounted on the slider.

[0018] Optionally, the feeding device further includes a transfer unit for transferring the sheet material onto the transmission belt. The transfer unit includes a frame, a second frame, a second conveyor belt mechanism mounted on the second frame, and a second rotary drive device. One end of the second frame is hinged to one end of the frame, and the end of the second frame away from the frame is slidably mounted on the first frame. The end of the second frame away from the frame can slide along the length of the first frame. The second conveyor belt mechanism includes two rotating rollers spaced apart on the second frame and a transfer belt sleeved on the two rotating rollers. The two rotating rollers are spaced apart along the length of the second frame, and the rotating rollers are rotatably connected to the two inner sidewalls of the second frame. The rotating rollers are used to drive the transfer belt to move the sheet material located on the upper surface of the transfer belt. The output shaft of the second rotary drive device is connected to the rotating rollers for driving the rotating rollers to rotate. The control end of the second rotary drive device is electrically connected to the controller. The end of the transfer belt away from the frame is located above the transmission belt.

[0019] The feeding device of the board loading machine provided in this application is used by setting the board bin at one end of the conveying unit in the conveying direction, placing a single board alignment direction code on the conveying unit, and controlling the operation of the conveying unit through the controller. The conveying unit will transport the board to the slot in the board bin. The controller controls the operation of the lifting unit so that the conveying unit is raised or lowered to a height corresponding to the distance between the board and the slot in the board bin. Then, the single board is aligned and placed on the conveying unit again. This process is repeated to complete the board storage steps in the board bin. The worker only needs to align and place the board on the conveying unit and control the controller to operate the conveying unit and the lifting unit. There is no need to repeatedly bend over or lift the arm, thereby reducing labor costs.

[0020] Other beneficial effects of this application will be described in detail in the following detailed description section. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1A schematic diagram of the overall structure of the lifting unit and conveying unit of the feeding device provided in an embodiment of this application. Figure 1 ;

[0023] Figure 2 A schematic diagram of the overall structure of the lifting unit and conveying unit of the feeding device provided in one embodiment of this application. Figure 2 ;

[0024] Figure 3 A schematic diagram of the overall structure of the lifting unit, conveying unit and transfer unit of the feeding device provided in an embodiment of this application.

[0025] [Explanation of Labels in the Attached Image]

[0026] 1. Lifting unit;

[0027] 11. Lead screw and slider mechanism; 111. Slider; 112. Lead screw;

[0028] 2. Transport unit;

[0029] 21. First Framework;

[0030] 211. Waist hole;

[0031] 22. First conveyor belt mechanism;

[0032] 221. Drive roller; 222. Drive belt; 223. Mounting position;

[0033] 23. First rotary drive device;

[0034] 24. Drive the components;

[0035] 241. Support; 242. Linear motion device; 243. Push plate;

[0036] 25. Sensing device;

[0037] 26. Limiting components;

[0038] 261. Limiting space;

[0039] 3. Transfer unit;

[0040] 31. Frame; 32. Second frame;

[0041] 33. Second conveyor belt mechanism;

[0042] 331. Transfer belt. Detailed Implementation

[0043] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0044] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or mechanisms, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, mechanisms and / or a collection thereof.

[0045] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0046] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0050] Currently, when the existing board loading machine feeds materials into the board silo, production personnel need to continuously bend over or raise their arms to manually stack and insert the boards one by one from the height of the board silo, which is labor-intensive.

[0051] To address the aforementioned problems, one embodiment of this application provides a feeding device for a board loading machine, such as... Figure 1 As shown, the feeding device includes a lifting unit 1, a conveying unit 2, and a controller (not shown in the figure). The control terminal of the lifting unit 1 is electrically connected to the controller, and the control terminal of the conveying unit 2 is electrically connected to the controller. The lifting unit 1 is used to move the conveying unit 2 along the height direction of the silo, and the conveying unit 2 is used to carry and transport the board material into the silo.

[0052] When using the board loading device of the board loading machine provided in this application, the board bin is set at one end of the conveying direction of the conveying unit 2. The alignment direction code of a single board is placed on the conveying unit 2. The conveying unit 2 is controlled by the controller to transport the board to the slot in the board bin. The lifting unit 1 is controlled by the controller to raise / lower the conveying unit 2 to a height corresponding to the gap distance between the board bin and the slot. Then, the single board is aligned and placed on the conveying unit 2. This process is repeated to complete the board storage step in the board bin. The worker only needs to align and place the board on the conveying unit 2 and control the controller to move the conveying unit 2 and the lifting unit 1. There is no need to bend over or lift the arm repeatedly, thereby reducing the labor cost.

[0053] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the conveying unit 2 includes a first frame 21, a first conveyor belt mechanism 22 disposed on the first frame 21, and a first rotary drive device 23. The first frame 21 is connected to the output end of the lifting unit 1. The first frame 21 can be driven by the lifting unit 1 to move along the height direction of the silo. The control end of the first rotary drive device 23 is electrically connected to the controller. The first rotary drive device 23 is used to drive the first conveyor belt mechanism 22 to move so as to move the plates on the first conveyor belt mechanism 22 toward the silo.

[0054] The first frame 21 mentioned above serves as a support structure, capable of supporting the first conveyor belt mechanism 22 and the first rotary drive device 23. The first rotary drive device 23 can drive the transmission belt 222 to move, thereby moving the plate towards the plate bin. After a plate is inserted into the plate bin, the controller controls the lifting unit 1 to raise / lower the plate bin slot spacing by the corresponding height, thereby performing continuous plate insertion actions.

[0055] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the first conveyor belt mechanism 22 includes: two transmission rollers 221 spaced apart along the length of the first frame 21 and a transmission belt 222 sleeved on the two transmission rollers 221. Both ends of the transmission rollers 221 are rotatably connected to the two inner sidewalls of the first frame 21 respectively. The transmission belt 222 can move under the drive of the two transmission rollers 221. The output shaft of the first rotary drive device 23 is connected to one of the transmission rollers 221 for driving the transmission roller 221 to rotate.

[0056] The aforementioned transmission belt 222 is interference-fitted onto two transmission rollers 221. The output shaft of the first rotary drive device 23 is connected to one transmission roller 221 via a transmission device such as a belt / chain sprocket to drive the transmission roller 221 to rotate. The transmission roller 221 drives the transmission belt 222 to move through friction and tension, thereby driving the plate material located on the transmission belt 222 to move.

[0057] In some embodiments of this application, such as Figure 1 As shown, there are two first rotary drive devices 23, which are respectively connected to two drive rollers 221 to drive the two drive rollers 221 to rotate.

[0058] In some embodiments of this application, the transmission roller has a transmission gear (not shown in the figure), and the side of the transmission belt near the transmission roller is provided with a corresponding transmission tooth structure (not shown in the figure), and the teeth of the transmission gear are adapted to the transmission tooth structure.

[0059] The aforementioned transmission gear and transmission tooth structure enables the transmission roller 221 to drive the transmission belt 222, thus solving the slippage problem that is unavoidable in friction transmission. This results in precise synchronization between the movement of the transmission belt 222 and the transmission roller 221, a more stable transmission ratio, and higher motion transmission efficiency. Compared to friction transmission, the transmission belt 222 has a greater load capacity.

[0060] In some embodiments of this application, such as Figure 1 and Figure 2As shown, each transmission roller 221 is fitted with two transmission gears (not shown in the figure), which are located at both ends of the transmission roller 221. There are also two transmission belts 222, which are fitted on the transmission gears located on the same side of the two transmission rollers 221 respectively. There is an installation position 233 between the two transmission belts 222.

[0061] Two transmission gears are provided on each transmission roller 221, and a transmission belt 222 is sleeved on the same side of the two transmission rollers 221, so that the first conveyor belt mechanism 22 has two transmission belts 222. The two transmission belts 222 are spaced apart by an installation position 223. When the sheet moves on the first conveyor belt mechanism 22, both ends of the sheet rest on the two transmission belts 222 respectively. If the sheet is misaligned, the staff can use the installation position 223 to adjust or remove the sheet to ensure production quality.

[0062] In some embodiments of this application, a transmission chain adapted to the transmission gears is sleeved between the two transmission gears, and a transmission belt is sleeved on the transmission chain.

[0063] The aforementioned first conveyor belt mechanism is a commonly used mechanism in the prior art. In actual production, it can be set up with reference to the conveyor belt mechanism in the prior art.

[0064] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the conveying unit 2 also includes a pushing component 24. The control end of the pushing component 24 is electrically connected to the controller. The pushing component 24 is disposed in the first frame 21. The output end of the pushing component 24 is located in the mounting position 223. The output end can extend and retract to push against the plates sent into the silo by the first conveyor belt mechanism 22.

[0065] The pushing component 24 is installed inside the first frame 21 and is used to push the board that has not fully entered the board hopper after the first conveyor belt mechanism 22 inserts the board into the board hopper, so that the board is fully entered into the board hopper. The controller controls the lifting component so that the output end of the pushing component 24 faces one end of the board. The controller then controls the pushing component 24 to perform telescopic movement to push the board into the board hopper.

[0066] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the pushing component 24 includes a bracket 241 and a linear motion device 242 mounted on the bracket 241. The drive end of the linear motion device 242 is electrically connected to the controller. The bracket 241 is connected to the inner wall of the first frame 21. The linear motion device 242 is mounted on the bracket 241 and located in the mounting position 223. The output end of the linear motion device 242 can extend and retract along the length direction of the first frame 21 to push against the plates fed into the silo by the first conveyor belt mechanism 22.

[0067] The aforementioned bracket 241 is used to support the linear motion device 242, which is located within the mounting position 223 so that its output end can extend and retract in the length direction of the first frame 21 to extend out of the mounting position 223 / retract into the mounting position 223.

[0068] In some embodiments of this application, such as Figure 2 As shown, the pushing component 24 also includes a push plate 243, one side of which is connected to the output end of the linear motion device 242.

[0069] The aforementioned push plate 243 can increase the pushing area of ​​the output end of the linear motion device 242, so that the output end of the linear motion device 242 can better push the plate.

[0070] In some embodiments of this application, such as Figure 2 As shown, the conveying unit 2 also includes a sensing device 25, the working end of which extends toward the output end of the linear motion device 242, and the control end of the sensing device 25 is electrically connected to the controller.

[0071] The sensing device 25 can be connected to the first frame 21 via a rod or plate or other connecting member. The sensing device 25 is used to detect whether the board in the board bin is fully inserted into the board bin or whether there is a board in the board bin in the working direction of the linear motion device 242. After detection, the detection information of whether the board in the board bin is fully inserted into the board bin or whether there is a board in the board bin is transmitted to the controller. The controller will control the first rotary drive device 23 according to the detection information to adjust the operation or stop of the first conveyor belt mechanism 22, control the operation state of the lifting unit 1 to adjust the height of the first conveyor belt mechanism 22 so as to facilitate the insertion of the board, and control the output end of the linear motion device 242 to extend and retract. It should be noted that the controller's functions of receiving the detection signal transmitted by the sensing device 25 and controlling the first rotary drive device 23 according to the detection signal to adjust the operation state of the first conveyor belt mechanism 22, controlling the operation state of the lifting unit 1 to adjust the height of the first conveyor belt mechanism 22, and controlling the output end of the linear motion device 242 to extend and retract are all functions of the controller itself and will not be described in detail here.

[0072] For example, the sensing device 25 described above can be an infrared sensor (such as a wide-angle infrared detector) or a vision device (such as an industrial camera).

[0073] In some embodiments of this application, such as Figure 1 and Figure 2As shown, the lifting unit 1 includes a lead screw and slider mechanism 11. The drive end of the lead screw and slider mechanism 11 is electrically connected to the controller. The lead screw and slider mechanism 11 includes a lead screw 112 whose length direction is consistent with the height direction of the first frame 21. A slider 111 that can perform linear reciprocating motion along the length direction of the lead screw 112 is sleeved on the lead screw 112. The slider 111 is plate-shaped, and the first frame 21 is mounted on the slider 111.

[0074] The aforementioned lead screw and slider mechanism 11 is used to move the first frame 21 along the length direction of the lead screw 112, so that the first frame 21 moves in the height direction of the plate bin, thereby driving the first conveyor belt mechanism 22 to move in the height direction of the plate bin, thereby adjusting the height position of the plate to facilitate the plate entering the slot of the plate bin.

[0075] Since the lead screw and slider mechanism 11 is a commonly used mechanism in the prior art, its specific structure will not be described in detail here. It is understood that the lead screw and slider mechanism 11 can also be replaced by other mechanisms that can drive the first frame 21 to move in the height direction of the silo. For example, it can be a cylinder, a hydraulic cylinder, or an electric push rod.

[0076] In some embodiments of this application, such as Figure 3 As shown, the feeding device also includes a transfer unit 3, which is used to transfer the sheet metal onto the transmission belt 222. The transfer unit 3 includes a frame 31, a second frame 32, a second conveyor belt mechanism 33 mounted on the second frame 32, and a second rotary drive device (not shown in the figure). One end of the second frame 32 is hinged to one end of the frame 31, and the end of the second frame 32 away from the frame 31 is slidably mounted on the first frame 21. The end of the second frame 32 away from the frame 31 can slide along the length of the first frame 21. The second conveyor belt mechanism 33 includes spaced-apart components. Two rotating rollers (not shown in the figure) are mounted on the second frame 32 and a transfer belt 331 is sleeved on the two rotating rollers. The two rotating rollers are spaced apart along the length of the second frame 32 and are rotatably connected to the two inner side walls of the second frame 32. The rotating rollers are used to drive the transfer belt 331 to move so as to move the plate located on the upper surface of the transfer belt 331. The output shaft of the second rotary drive device is connected to the rotating rollers for driving the rotating rollers to rotate. The control end of the second rotary drive device is electrically connected to the controller. The end of the transfer belt 331 away from the frame 31 is located above the transmission belt 222.

[0077] In some embodiments, the rotating roller also has a transmission gear, and the inner side of the transfer belt 331 also has a transmission tooth structure, with the transmission gear and the transmission tooth being adapted to each other.

[0078] In some specific embodiments, the frame 31 extends in the height direction of the silo, and one end of the second frame 32 can be hinged to the end of the frame 31 away from the ground to adjust the angle of the second conveyor belt mechanism 33 set on the second frame 32. The other end of the second frame 32 is slidably set on the first frame 21. Specifically, waist holes 211 are opened on the two opposite side plates of the first frame 21. The waist holes 211 extend along the length direction of the first frame 21. One end of the second frame 32 is connected to the waist holes 211 by bolts so that when the first frame 21 moves in the height direction, the end of the second frame 32 away from the frame 31 can slide along the waist holes 211 to adapt to the height position of the first frame 21. The working principle of the second conveyor belt and the second rotary drive device is the same as the working principle of the first conveyor belt mechanism 22, and will not be described in detail here.

[0079] It is understandable that the controller's ability to control the movement of the second rotating device to control the action of the conveyor belt 331 is a function inherent to the controller itself.

[0080] In some embodiments of this application, such as Figure 2 As shown, the conveying unit 2 also includes a limiting member 26, which is located on the discharge side of the transmission belt 222, i.e., the side near the hopper. The limiting member 26 has a gradually decreasing limiting space 261 from the end near the transmission belt 222 to the end away from the transmission belt 222. Specifically, the limiting member 26 is composed of two conical sliders 111, and there is a gradually decreasing limiting space 261 between the two conical sliders 111 from the end near the transmission belt 222 to the end away from the transmission belt 222.

[0081] The aforementioned limiting member 26 can limit the conveyor belt 222 when it delivers the sheet material, so that the sheet material will not deviate significantly when it enters the hopper.

[0082] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A feeding device for a board loading machine, characterized in that, The system includes a lifting unit (1), a conveying unit (2), and a controller. The control terminal of the lifting unit (1) is electrically connected to the controller, and the control terminal of the conveying unit (2) is also electrically connected to the controller. The lifting unit (1) is used to move the conveying unit (2) along the height direction of the silo. The conveying unit (2) is used to carry and transport the boards into the silo. The conveying unit (2) includes a first frame (21), a first conveyor belt mechanism (22) mounted on the first frame (21), and a first rotary drive device (23). The first frame (21) is connected to the output terminal of the lifting unit (1). The first frame (21) can be driven by the lifting unit (1) to move along the height direction of the silo. The first rotary drive device (23) is also connected to the first frame (21). The control end of the device (23) is electrically connected to the controller. The first rotary drive device (23) is used to drive the first conveyor belt mechanism (22) to move so as to move the plate on the first conveyor belt mechanism (22) towards the direction of the plate bin. The lifting unit (1) includes a screw-slider mechanism (11). The drive end of the screw-slider mechanism (11) is electrically connected to the controller. The screw-slider mechanism (11) includes a screw (112) whose length direction is consistent with the height direction of the first frame (21). A slider (111) that can reciprocate linearly along the length direction of the screw (112) is sleeved on the screw (112). The slider (111) is plate-shaped. The first frame (21) is mounted on the slider (111).

2. The feeding device according to claim 1, characterized in that, The first conveyor belt mechanism (22) includes: Two drive rollers (221) are spaced apart along the length of the first frame (21), and both ends of the drive rollers (221) are rotatably connected to the two inner sidewalls of the first frame (21); The transmission belt (222) is fitted on two transmission rollers (221), and the transmission belt (222) can move under the drive of the two transmission rollers (221); The output shaft of the first rotary drive device (23) is connected to a drive roller (221) for driving the drive roller (221) to rotate.

3. The feeding device according to claim 2, characterized in that, The transmission roller (221) has a transmission gear, and the transmission belt (222) has a corresponding transmission tooth structure on the side close to the transmission roller (221). The teeth of the transmission gear are adapted to the transmission tooth structure.

4. The feeding device according to claim 3, characterized in that, Each of the transmission rollers (221) is fitted with two transmission gears, which are located at both ends of the transmission roller (221). There are also two transmission belts (222), which are fitted on the transmission gears located on the same side of the two transmission rollers (221). There is an installation position (223) between the two transmission belts (222).

5. The feeding device according to claim 4, characterized in that, The transport unit (2) further includes a push assembly (24), the control end of which is electrically connected to the controller. The push assembly (24) is disposed within the first frame (21), and the output end of which is located within the mounting position (223). The output end is retractable to push against the plates fed into the silo by the first conveyor belt mechanism (22).

6. The feeding device according to claim 5, characterized in that, The pushing component (24) includes a bracket (241) and a linear motion device (242) disposed on the bracket (241). The driving end of the linear motion device (242) is electrically connected to the controller. The bracket (241) is connected to the inner wall of the first frame (21). The linear motion device (242) is disposed on the bracket (241) and located in the mounting position (223). The output end of the linear motion device (242) can extend and retract along the length direction of the first frame (21) to push the plate material fed into the silo by the first conveyor belt mechanism (22).

7. The feeding device according to claim 6, characterized in that, The transport unit (2) also includes a sensing device (25), the working end of which extends toward the output end of the linear motion device (242), and the control end of the sensing device (25) is electrically connected to the controller.

8. The feeding device according to claim 2, characterized in that, The feeding device further includes a transfer unit (3), which is used to transfer the sheet metal onto the transmission belt (222). The transfer unit (3) includes a frame (31), a second frame (32), a second conveyor belt mechanism (33) mounted on the second frame (32), and a second rotary drive device. One end of the second frame (32) is hinged to one end of the frame (31). The end of the second frame (32) away from the frame (31) is slidably mounted on the first frame (21). The end of the second frame (32) away from the frame (31) can slide along the length of the first frame (21) on the first frame (21). The second conveyor belt mechanism (32) is... 3) Includes two rotating rollers spaced apart on the second frame (32) and a transfer belt (331) sleeved on the two rotating rollers. The two rotating rollers are spaced apart along the length of the second frame (32), and the rotating rollers are rotatably connected to the two inner sidewalls of the second frame (32). The rotating rollers are used to drive the transfer belt (331) to move so as to drive the plate located on the upper surface of the transfer belt (331) to move. The output shaft of the second rotary drive device is connected to the rotating rollers for driving the rotating rollers to rotate. The control end of the second rotary drive device is electrically connected to the controller. The end of the transfer belt (331) away from the frame (31) is located above the transmission belt (222).

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