Semi-automatic double-spliced paper feeding machine

Abstract

The utility model relates to the technical field of corrugated board processing, in particular to a semi-automatic double-spliced paper feeding machine which comprises a paper feeding machine body and a first conveying belt, a mounting frame is arranged on the first conveying belt, and a paper blocking board, a first driving mechanism used for driving the paper blocking board to rotate and a detection control mechanism are arranged on the mounting frame. A feeding space is formed between the paper blocking plate and the first conveying belt, and the detection control mechanism is used for detecting the position of the corrugated board in the feeding space and controlling the first driving mechanism to start. Through cooperation of the paper blocking plate and the first driving mechanism, the height of a corrugated paper stack conveyed on the first conveying belt is limited, so that the part, exceeding the height of the feeding space, of the corrugated paper is prevented from being continuously conveyed, and it is ensured that the stacking height of the corrugated paper stack conveyed by the first conveying belt is not too high; therefore, the situation that the corrugated boards are stuck in the follow-up conveying process is reduced.

Description

Technical Field

[0001] This application relates to the field of corrugated cardboard processing technology, and in particular to a semi-automatic double-layer paper feeding machine. Background Technology

[0002] Corrugated cardboard is widely used as a primary raw material in carton production due to its high mechanical strength and ability to withstand impacts and drops during handling. Different product categories require different sizes of corrugated cardboard; for example, the packaging of certain large equipment and household appliances typically requires larger corrugated cardboard. For such large corrugated cardboard, using a paper feeder specifically designed for that size would result in an excessively large feeder, occupying a significant amount of space and making it unsuitable for practical use.

[0003] To solve the above problems, in the existing technology, the larger corrugated cardboard is usually divided into two smaller corrugated cardboard pieces for production. After production, the two smaller corrugated cardboard pieces are placed side by side and spliced ​​together into a whole using splicing equipment. This completes the production of the larger corrugated cardboard. For example, when it is necessary to produce five meters of corrugated cardboard, two two-and-a-half-meter pieces of corrugated cardboard are first produced, and then the two pieces are spliced ​​and bound together. For the above splicing process, a double-spinning paper feeder is usually used for paper feeding and conveying.

[0004] Reference Figure 1 The existing double-layer paper feeder structure includes: a first conveyor belt 2, a second conveyor belt 3, a paper feeder body 1, and a cardboard sorting mechanism 4. The starting end of the second conveyor belt 3 is lower than the end of the first conveyor belt 2. The cardboard sorting mechanism 4 is located on the second conveyor belt 3, and a sorting space is formed between the cardboard sorting mechanism 4 and the second conveyor belt 3. In use, the paper feeder body 1 simultaneously transports two stacks of corrugated cardboard to a position near the starting end of the first conveyor belt 2. Then, two workers stand on either side of the first conveyor belt 2 and sort a portion of the corrugated cardboard from each stack. The two stacks of corrugated cardboard are transferred to the first conveyor belt 2, ensuring that they are placed side by side along the width of the first conveyor belt 2. Then, the two stacks of corrugated cardboard are simultaneously transported to the sorting space via the first conveyor belt 2. After the two stacks of corrugated cardboard fall into the sorting space and are stacked, the cardboard sorting mechanism 4 aligns the perimeter of the two stacks of corrugated cardboard. Finally, the two corrugated cardboard sheets at the bottom are conveyed forward by the second conveyor belt 3 until they are conveyed to the bottom of the assembly mechanism. The assembly mechanism then assembles the two corrugated cardboard sheets together, thus completing the processing of the large-volume corrugated cardboard.

[0005] Regarding the above process, since the transfer of corrugated cardboard from the paper feeder 1 to the first conveyor belt 2 is done manually, in order to ensure the efficiency of feeding, the manual transfer of corrugated cardboard usually involves directly placing a stack of corrugated cardboard onto the first conveyor belt 2. If the stack of corrugated cardboard placed by the worker at one time is too high, it is easy for the cardboard to tilt and get stuck when it falls into the sorting space. This causes the subsequent corrugated cardboard to gradually tilt as well, which in turn affects the conveying of the second conveyor belt 3. It is also necessary for the worker to manually lift some of the corrugated cardboard and place it on the first conveyor belt 2 behind it each time a large amount of corrugated cardboard is placed on the first conveyor belt 2. The overall process is quite cumbersome and needs improvement. Utility Model Content

[0006] To address the issue that workers still need to manually control the height of each stack of corrugated cardboard during the process of moving it from the paper feeder to the first conveyor belt, in order to prevent the cardboard from getting stuck during subsequent transport, this application provides a semi-automatic double-stack paper feeder.

[0007] This application provides a semi-automatic double-sheet paper feeder, which adopts the following technical solution:

[0008] A semi-automatic double-sided paper feeding machine includes a paper feeding machine body and a first conveyor belt. A mounting frame is provided on the first conveyor belt. A guide plate, a first drive mechanism for driving the guide plate to rotate, and a detection and control mechanism are provided on the mounting frame. A feeding space is formed between the guide plate and the first conveyor belt. The detection and control mechanism is used to detect the position of the corrugated cardboard in the feeding space and control the first drive mechanism to start.

[0009] By adopting the above technical solution, when a worker places a stack of corrugated cardboard on the first conveyor belt, the corrugated cardboard can be conveyed into the feeding space by the first conveyor belt. At the same time, the baffle plate blocks the part of the corrugated cardboard that exceeds the height of the feeding space. As the corrugated cardboard in the feeding space is conveyed forward, the corrugated cardboard that exceeds the height moves backward relative to the front until it partially overlaps the first conveyor belt to form a fish-scale stack. After that, the detection and control mechanism detects and controls the first drive mechanism to start, thereby driving the baffle plate to rotate and open, so that the corrugated cardboard in the feeding space can continue to be conveyed forward. After that, the baffle plate rotates back to its original state, thereby blocking and limiting the subsequent corrugated cardboard. In this way, the height of the corrugated cardboard on the first conveyor belt can be adjusted.

[0010] Preferably, a slide block is slidably disposed on the mounting frame, the sliding direction of the slide block is parallel to the width direction of the first conveyor belt, the baffle plate, the first driving mechanism and the detection and control mechanism are all disposed on the slide block, and the slide block is also provided with a positioning structure for positioning itself after sliding.

[0011] By adopting the above technical solution, the sliding block and positioning structure make it easy for workers to adjust the position of the baffle according to the position of the corrugated cardboard being conveyed, so as to ensure that the stacking height of the corrugated cardboard can be adjusted when conveying baffles of different sizes, thus improving the practicality of the device.

[0012] Preferably, the positioning structure includes a plurality of abutment bolts threaded onto the slide block, one end of each abutment bolt passing through the slide block and engaging with the mounting bracket, and the plurality of abutment bolts being spaced apart on the slide block.

[0013] By adopting the above technical solution, the sliding block is clamped and positioned after sliding with the cooperation of several abutting bolts, making it simple and convenient to use.

[0014] Preferably, the first driving mechanism includes a support frame fixed on the slide, a rotating seat rotatable on the support frame, and a driving electric cylinder disposed on the rotating seat. The baffle plate is rotatably connected to the slide, and the piston rod end of the driving electric cylinder is hinged to the baffle plate. The detection and control mechanism is used to control the extension and retraction of the piston rod of the driving electric cylinder.

[0015] By adopting the above technical solution, when the detection and control mechanism detects that the height of the corrugated cardboard in the feeding space meets the standard, it can control the piston rod of the drive cylinder to extend and retract, thereby driving the rotating seat to rotate upward and simultaneously driving the baffle cardboard away from the first conveyor belt, so as to ensure that the corrugated cardboard passes through the feeding space smoothly.

[0016] Preferably, a guide plate is fixed to one end of the baffle plate facing the first conveyor belt, and the end of the guide plate away from the baffle plate is inclined in the transmission direction of the first conveyor belt.

[0017] By adopting the above technical solution, the corrugated cardboard in the feeding space is guided by the setting of the guide plate during use, which ensures the stability of the corrugated cardboard conveying process. At the same time, it also ensures that the part of the corrugated cardboard that exceeds the height of the feeding space can overlap the corrugated cardboard in front in a fish scale pattern during the backward movement.

[0018] Preferably, a folding plate is fixed to the end of the guide plate away from the baffle plate, and a rounded chamfer is provided at the connection between the folding plate and the guide plate.

[0019] By adopting the above technical solution, during use, the combination of the folding plate and the rounded chamfer prevents scratches on the corrugated cardboard at the connection point of the folding plate and the guide plate when the corrugated cardboard passes through the feeding space, thus ensuring the conveying quality of the corrugated cardboard.

[0020] Preferably, a rotating plate is rotatably connected to the slide, the baffle plate is hinged to the rotating plate, and a driving component for driving the baffle plate to rotate is also provided on the rotating plate.

[0021] By adopting the above technical solution, during use, the corrugated cardboard that exceeds the height of the feeding space is guided to move backward through the cooperation of the rotating plate and the driving component, further ensuring that the corrugated cardboard that exceeds the height can be stacked in a fish scale shape after it comes into contact with the first conveyor belt.

[0022] Preferably, the driving component includes a plurality of return springs fixed on the rotating plate, the plurality of return springs being spaced apart on the rotating plate, and the end of the return spring away from the rotating plate abutting against the baffle plate.

[0023] By adopting the above technical solution, during use, the cooperation of several reset springs ensures that the stop plate can return to its original state after the rotating plate rotates, so as to facilitate the adjustment of the obstruction of subsequent corrugated cardboard.

[0024] Preferably, the first conveyor belt is also provided with a partition for separating two stacks of corrugated cardboard placed side by side.

[0025] By adopting the above technical solution, when in use, the two stacks of corrugated cardboard placed side by side are separated by a partition, which ensures the transmission direction of the corrugated cardboard and also helps the worker to straighten the two stacks of corrugated cardboard.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By using a cardboard block, a drive cylinder, and a detection and control mechanism, in conjunction with the transmission of the first conveyor belt, when the corrugated cardboard is stacked at a high height, the portion of the corrugated cardboard that exceeds the height of the feeding space is blocked, causing it to move relatively backward and gradually form a fish-scale-like stack on the corrugated cardboard in front, thereby ensuring that the corrugated cardboard will not get stuck during subsequent conveying. It is simple and convenient to use.

[0028] 2. By using the sliding block and the abutment bolt, the position of the cardboard stop can be adjusted to accommodate corrugated cardboard at different positions on the first conveyor belt, thus improving the applicability of the device;

[0029] 3. By setting up guide plates, folding plates, and rounded corners, the corrugated cardboard that exceeds the height of the feeding space is guided backward to avoid the corrugated cardboard getting stuck in the feeding space. On the other hand, it also avoids scratching the corrugated cardboard, thus ensuring the conveying quality of the corrugated cardboard. Attached Figure Description

[0030] Figure 1 This is an isometric schematic diagram of the main structure of the paper feeding machine in the background art of this application;

[0031] Figure 2 This is an isometric schematic diagram of the main overall structure in Embodiment 1 of this application;

[0032] Figure 3 This is an isometric schematic diagram of the main structure of the paper feeding machine body in Embodiment 1 of this application;

[0033] Figure 4 This is a schematic diagram illustrating the main installation structure of the baffle plate in Embodiment 1 of this application;

[0034] Figure 5 This is an isometric schematic diagram of the slide block structure, which is the main feature of Embodiment 1 of this application.

[0035] Figure 6 This is an isometric schematic diagram of the rotating plate mounting structure, which is the main feature of Embodiment 2 of this application.

[0036] Reference numerals in the attached drawings: 1. Paper feeder body; 11. Frame; 12. Turning plate; 13. First electric cylinder; 14. Fixed seat; 15. Second electric cylinder; 16. Conveyor belt; 17. Push rod; 2. First conveyor belt; 3. Second conveyor belt; 4. Paperboard sorting mechanism; 5. Mounting frame; 51. Slide; 52. Guide rail; 53. Turning plate; 54. Return spring; 6. Guard plate; 61. Guide slant plate; 62. Folding plate; 63. Rounded chamfer; 7. First drive mechanism; 71. Support frame; 72. Turning seat; 73. Drive electric cylinder; 8. Detection and control mechanism; 9. Abutment bolt; 10. Partition plate; 20. Platform. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 2 -Appendix Figure 6 This application will be described in further detail.

[0038] This application discloses a semi-automatic double-sheet paper feeder.

[0039] Example 1:

[0040] Reference Figure 2 A semi-automatic double-sided paper feeder includes a horizontally placed paper feeder body 1 and a first conveyor belt 2. The paper feeder body 1 is located to the right of the first conveyor belt 2. The first conveyor belt 2 is provided in several groups, and the several groups of first conveyor belts 2 are evenly spaced along the width direction of the paper feeder body 1. In this embodiment, the width of the several groups of first conveyor belts 2 side by side should meet the width of two corrugated cardboards being transported side by side at the same time. A partition 10 is also provided at the middle position of the width direction of the several groups of first conveyor belts 2 side by side. The partition 10 is used to separate the two corrugated cardboards side by side and guide the transmission direction of the two corrugated cardboards.

[0041] Reference Figure 2In use, workers use a forklift or cardboard conveyor to transfer two stacks of corrugated cardboard side by side onto the paper feeder 1. The paper feeder 1 then transports the two stacks of corrugated cardboard to a position close to the first conveyor belt 2. Two workers then work together to remove one piece of corrugated cardboard from each of the two stacks and place the two stacks of corrugated cardboard side by side onto the first conveyor belt 2. The first conveyor belt 2 then transports the two stacks forward synchronously. To facilitate worker operation, platforms 20 are set on both sides of the first conveyor belt 2, allowing workers to stand on the platforms 20 to transfer the corrugated cardboard.

[0042] Reference Figure 2 and Figure 3 The paper feeding machine body 1 includes a frame 11 placed on the ground, a rotating plate 12 rotatably connected to the frame 11, a first electric cylinder 13 mounted on the frame 11, a fixed seat 14 rotatably mounted on the rotating plate 12, a second electric cylinder 15 mounted on the rotating plate 12, a conveyor belt 16 mounted on the fixed seat 14, and a push rod 17 mounted on the conveyor belt 16. The cylinder body of the first electric cylinder 13 is hinged to the frame 11, and the piston rod of the first electric cylinder 13 is rotatably connected to the rotating plate 12. The cylinder body of the second electric cylinder 15 is hinged to the rotating plate 12, and the piston rod of the second electric cylinder 15 is rotatably connected to the fixed seat 14. In this application, several sets of conveyor belts 16 are provided, and the several sets of conveyor belts 16 are evenly spaced along the width direction of the fixed seat 14. The bottom end of the push rod 17 is connected to the upper surface of the conveyor belt 16, that is, when in use, the push rod 17 moves with the upper surface of the conveyor belt 16.

[0043] Reference Figure 2 and Figure 3 In operation, when feeding material onto the paper machine body 1, the conveyor belt 16 is in a vertical position and the push rod 17 is in a horizontal position. At this time, the operator can use a forklift or cardboard conveyor to place two stacks of corrugated cardboard side-by-side on the push rod 17. Once the corrugated cardboard on the push rod 17 has stacked to a certain height, the first electric cylinder 13 and the second electric cylinder 15 work together to gradually rotate the fixed seat 14 and tilt the conveyor belt 16 until the top of the conveyor belt 16 is close to the first conveyor belt 2. Then, the rotation of the fixed seat 14 can be stopped. The conveyor belt 16 drives the push rod 17 to move, thereby gradually moving the corrugated cardboard closer to the first conveyor belt 2 through the combined action of the push rod 17 and the conveyor belt 16. When the top corrugated cardboard is close to the starting end of the first conveyor belt 2, the transmission of the conveyor belt 16 can be stopped. Then, the corrugated cardboard on the conveyor belt 16 can be manually transferred to the first conveyor belt 2 in batches until all the corrugated cardboard on the paper feeding machine body 1 has been transferred to the first conveyor belt 2. Then, the conveyor belt 16 can be controlled to rotate and reset, and the above steps can be repeated to re-feed the paper.

[0044] Reference Figure 2 and Figure 4Since manual transfer cannot guarantee the height of each stack of corrugated cardboard that a worker can carry, in actual operation, there is a possibility that the stack of corrugated cardboard on the first conveyor belt 2 is too high. To prevent this from affecting subsequent transfers, a mounting frame 5 is also provided on the first conveyor belt 2. A guide rail 52 is fixed on the mounting frame 5. The length direction of the guide rail 52 is parallel to the width direction of the first conveyor belt 2. A slide block 51 is slidably mounted on the guide rail 52. A baffle 6, a first drive mechanism 7, and a detection and control mechanism 8 are provided on the slide block 51. A positioning structure is also provided on the slide block 51 to position the slide block 51 after it has slid.

[0045] Reference Figure 2 and Figure 4 In this embodiment, two sets of slide blocks 51 are provided, and the two sets of slide blocks 51 are positioned opposite two corrugated cardboards arranged side by side. In use, the worker can change the position of the baffle 6 by sliding the slide block 51 to ensure that the two baffle 6 can be aligned with the two corrugated cardboards on the first conveyor belt 2. Once the position of the slide block 51 after sliding is determined, the slide block 51 can be positioned by the positioning structure to ensure the stability of the sliding.

[0046] Reference Figure 4 and Figure 5 The positioning structure includes several abutment bolts 9, which are spaced apart at the bottom of the slide 51 and threaded onto the slide 51. The top of the abutment bolt 9 passes through the slide 51 and abuts against the bottom wall of the mounting bracket 5. In use, when the position of the slide 51 needs to be adjusted, simply screw the abutment bolts 9 to disengage the top of the abutment bolts 9 from the mounting bracket 5. After adjustment, screw the abutment bolts 9 back onto the mounting bracket 5 to achieve positioning of the slide 51.

[0047] Reference Figure 4 and Figure 5 The baffle plate 6 is rotatably connected to the slide 51. The baffle plate 6 is located above the first conveyor belt 2, and a feeding space is formed between the bottom end of the baffle plate 6 and the upper surface of the first conveyor belt 2. The first drive mechanism 7 is used to drive the baffle plate 6 to swing upward, thereby gradually moving away from the upper surface of the first conveyor belt 2. The first drive mechanism 7 consists of a support frame 71, a rotating seat 72, and a drive cylinder 73. The support frame 71 is welded and fixed to the slide 51, the rotating seat 72 is rotatably connected to the support frame 71, the cylinder body of the drive cylinder 73 is mounted on the rotating seat 72, and the piston rod end of the drive cylinder 73 is hinged to the top end of the baffle plate 6.

[0048] Reference Figure 4 and Figure 5The detection and control mechanism 8 is used to detect the position of the corrugated cardboard in the feeding space and control the extension and retraction of the piston rod of the drive cylinder 73. In this embodiment, the detection and control mechanism 8 is set as a position sensor, which is fixed to the bottom of the slide block 51 by bolts, and the probe of the position sensor is set vertically towards the first conveyor belt 2. In use, the baffle plate 6 is in a vertical state in the initial state, and the piston rod of the drive cylinder 73 is in an extended state. After the corrugated cardboard enters the feeding space, the part of the corrugated cardboard that exceeds the height of the feeding space is gradually moved backward relative to the corrugated cardboard below under the blocking action of the baffle plate 6 until it forms a fish scale stack on the corrugated cardboard below. At this time, after the position sensor detects the change in the position of the corrugated cardboard in the feeding space, it can control the piston rod of the drive cylinder 73 to retract, thereby driving the baffle plate 6 to rotate upward. With the conveying of the first conveyor belt 2, the purpose of adjusting the stack of corrugated cardboard that is higher can be achieved. After all the corrugated cardboard in the feeding space is conveyed out, the baffle plate 6 is controlled to rotate and return to its original position, thereby blocking and adjusting the stack height of the corrugated cardboard behind.

[0049] Reference Figure 4 and Figure 5 During the conveying process of the first conveyor belt 2, if the height of the stack of corrugated cardboard on the first conveyor belt 2 is lower than the height of the feeding space, the baffle plate 6 can pass smoothly without rotating the corrugated cardboard. However, when the height of the stack of corrugated cardboard on the first conveyor belt 2 is equal to or slightly higher than the height of the feeding space, in order to prevent the corrugated cardboard from getting stuck at the bottom of the baffle plate 6, a guide plate 61 is integrally formed at the bottom of the baffle plate 6. The end of the guide plate 61 away from the baffle plate 6 is inclined towards the conveying direction of the first conveyor belt 2. At the same time, a folding plate 62 is also formed at the end of the guide plate 61 away from the baffle plate 6. The top of the folding plate 62 faces upwards from the first conveyor belt 2, and a rounded chamfer 63 is formed at the connection between the folding plate 62 and the guide plate 61.

[0050] Reference Figure 4 and Figure 5 In use, the corrugated cardboard in the feeding space is guided by the cooperation of the guide plate 61 and the folding plate 62. During the conveying process, the corrugated cardboard above gradually tilts backward until it is stacked on the first conveyor belt 2 in a fish-scale pattern. The folding plate 62 and the rounded chamfer 63 prevent scratches from being caused on the top surface of the corrugated cardboard by the bottom of the guide plate 61 when the corrugated cardboard passes under the baffle plate 6.

[0051] The implementation principle of this application embodiment is as follows: In use, the worker only needs to place two stacks of corrugated cardboard side by side on the cardboard conveying device. Then, the cardboard conveying device synchronously transports the two stacks of corrugated cardboard onto the conveyor belt 16 of the paper feeding machine body 1. Through the cooperation of the first electric cylinder 13 and the second electric cylinder 15, the corrugated cardboard on the paper feeding machine body 1 gradually moves towards the first conveyor belt 2. During this process, the worker stands on the platform 20. When the foremost stack of corrugated cardboard approaches the worker, the worker can manually move a stack of corrugated cardboard and place it on the first conveyor belt 2. Then, under the transmission action of the first conveyor belt 2, the corrugated cardboard is transported to the first conveyor belt 2. As a stack of corrugated cardboard gradually enters the feeding space, the portion of the cardboard that exceeds the height of the feeding space is blocked by the cooperation of the baffle plate 6, the detection and control mechanism 8, and the drive cylinder 73. This adjusts the cardboard from a vertically stacked pile to a fish-scale stacked state. Then, the baffle plate 6 rotates and opens, allowing all the cardboard below to pass through the feeding space. It then rotates and resets itself to adjust the subsequent cardboard. The whole process is simple and convenient, ensuring that the stack height of the corrugated cardboard conveyed on the first conveyor belt 2 is not too high, thus avoiding the situation where the subsequent transport is blocked when the stack of corrugated cardboard is too high.

[0052] Example 2:

[0053] Reference Figure 6 The difference between this embodiment and embodiment 1 is that a rotating plate 53 is rotatably connected to the slide 51, and the baffle plate 6 is hinged to the rotating plate 53. In the initial state, the rotating plate 53 is placed at an angle, and there is an included angle between the baffle plate 6 and the rotating plate 53. A driving component is also provided on the rotating plate 53. The driving component is used to drive the baffle plate 6 to rotate and reset. In this embodiment, the driving component is set as a reset spring 54. Several reset springs 54 are provided, and several reset springs 54 are spaced apart on the rotating plate 53. One end of the reset spring 54 is fixedly connected to the rotating plate 53, and the other end of the reset spring 54 abuts against the baffle plate 6. In addition, a drive switch is also installed on the side of the rotating plate 53 facing the baffle plate 6. The touch switch is used to cooperate with the detection and control mechanism 8 to control the start of the drive cylinder 73.

[0054] Reference Figure 6In use, under the elastic force of the return spring 54 and the gravity of the baffle plate 6, the baffle plate 6 is in a vertical state when no external force is applied. When the front end of a stack of corrugated cardboard gradually approaches the baffle plate 6 and comes into contact with it as the first conveyor belt 2 drives it forward, the upper corrugated cardboard gradually tilts towards each other. At the same time, the bottom end of the baffle plate 6 swings in the direction of corrugated cardboard conveying and squeezes the return spring 54. When the corrugated cardboard is stacked in a fish scale pattern, the baffle plate 6 comes into contact with the touch switch. The touch switch and the detection and control mechanism 8 work together to control the piston rod of the drive cylinder 73 to retract, so as to drive the rotating plate 53 and the baffle plate 6 to rotate and open synchronously, so that the lower corrugated cardboard can pass smoothly through the feeding space.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A semi-automatic double-sided paper feeder, comprising a paper feeder body (1) and a first conveyor belt (2), characterized in that: The first conveyor belt (2) is provided with a mounting frame (5), and the mounting frame (5) is provided with a baffle plate (6), a first drive mechanism (7) for driving the baffle plate (6) to rotate, and a detection and control mechanism (8). A feeding space is formed between the baffle plate (6) and the first conveyor belt (2). The detection and control mechanism (8) is used to detect the position of the corrugated cardboard in the feeding space and control the first drive mechanism (7) to start.

2. A semi-automatic double-sheet paper feeder according to claim 1, characterized in that: A slide block (51) is slidably disposed on the mounting bracket (5). The sliding direction of the slide block (51) is parallel to the width direction of the first conveyor belt (2). The baffle plate (6), the first driving mechanism (7) and the detection and control mechanism (8) are all disposed on the slide block (51). The slide block (51) is also provided with a positioning structure for positioning itself after sliding.

3. A semi-automatic double-sheet paper feeder according to claim 2, characterized in that: The positioning structure includes several threaded bolts (9) connected to the slide (51). One end of each bolt (9) passes through the slide (51) and engages with the mounting bracket (5). Several bolts (9) are spaced apart on the slide (51).

4. A semi-automatic double-sheet paper feeder according to claim 2, characterized in that: The first drive mechanism (7) includes a support frame (71) fixed on the slide (51), a rotating seat (72) rotating on the support frame (71), and a drive electric cylinder (73) disposed on the rotating seat (72). The baffle plate (6) is rotatably connected to the slide (51). The piston rod end of the drive electric cylinder (73) is hinged to the baffle plate (6). The detection and control mechanism (8) is used to control the extension and retraction of the piston rod of the drive electric cylinder (73).

5. A semi-automatic double-sheet paper feeder according to claim 1, characterized in that: The baffle plate (6) is fixed with a guide plate (61) at one end facing the first conveyor belt (2), and the guide plate (61) at the end away from the baffle plate (6) is inclined in the transmission direction of the first conveyor belt (2).

6. A semi-automatic double-sheet paper feeder according to claim 5, characterized in that: A folding plate (62) is fixed to the end of the guide plate (61) away from the baffle plate (6), and a rounded chamfer (63) is provided at the connection between the folding plate (62) and the guide plate (61).

7. A semi-automatic double-sheet paper feeder according to claim 2, characterized in that: A rotating plate (53) is rotatably connected to the slide (51), and the baffle plate (6) is hinged to the rotating plate (53). The rotating plate (53) is also provided with a driving component for driving the baffle plate (6) to rotate.

8. A semi-automatic double-sheet paper feeder according to claim 7, characterized in that: The driving component includes a plurality of return springs (54) fixed on the rotating plate (53). The plurality of return springs (54) are spaced apart on the rotating plate (53). The end of the return spring (54) away from the rotating plate (53) abuts against the baffle plate (6).

9. A semi-automatic double-sheet paper feeder according to claim 1, characterized in that: The first conveyor belt (2) is also provided with a partition (10) for separating two stacks of corrugated cardboard placed side by side.

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