Feeding and pressing device for a folding machine

Abstract

The utility model relates to the technical field of folding machine, disclose a folding machine is with feeding paper pressing device, including the mounting rod, one end of mounting rod is fixedly connected with the frame, the inner wall rotationally connected with the pivot of frame, the arc surface fixed connection of pivot has the drive wheel, the arc surface fixed connection of drive wheel has the toothed plate, the inner wall fixed connection of frame has the fixed plate, the surface fixed connection of fixed plate has the rectangular tube, the inner wall slidingly penetrates the rectangular tube and has the rectangular rod, the surface of rectangular rod is equipped with two round holes, the surface slidingly penetrates the rectangular tube and has the bolt, the size of bolt is compatible with the size of round hole, the one end fixed connection of rectangular rod is close to toothed plate and has the clamping plate, the surface rotationally connected with the threaded rod of drive wheel, this folding machine paper pressing device, through can according to the stacking height of the paper to be processed flexible adaptation, avoid the effect of paper pressing failure due to improper height.

Description

Technical Field

[0001] This utility model relates to the field of folding machine technology, specifically to a feeding and pressing device for a folding machine. Background Technology

[0002] A paper folding machine is a device used for automated paper folding, widely used in printing, office supplies, packaging, and other fields. It can replace manual labor in precisely folding various types of paper. Through preset programs or manual adjustments, it can achieve various folding styles such as bi-fold, cross fold, accordion fold, and Z-fold, and is suitable for different sizes of paper, including instruction manuals, flyers, tickets, and envelopes. Its core advantages lie in improving folding efficiency, reducing human error, and supporting paper of different thicknesses and sizes, meeting the diverse folding needs of mass production or daily office work.

[0003] When feeding paper into a folding machine, a paper pressing device is required. This device is crucial for ensuring the paper enters the folding process smoothly and stably. It is typically installed on the paper stacking platform or at the feed inlet of the folding machine. Through adjustable pressure rollers, it applies uniform and appropriate pressure to the stacked paper, preventing it from warping, delaminating, or skewing due to insufficient stiffness or external airflow. This ensures that the paper enters the feeding mechanism sequentially and flat, one sheet at a time. However, existing paper pressing devices often rely on traditional methods such as manually turning individual screws for adjustment, lacking precise quantitative references. Operators must rely on experience to repeatedly test and adjust the pressure to find the appropriate level. Excessive pressure can obstruct paper feeding, cause wrinkles, or even breakage, while insufficient pressure cannot suppress paper rebound and warping, easily leading to double or multiple sheet feeding or skewed paper feeding. Therefore, we propose a feeding paper pressing device for folding machines. Utility Model Content

[0004] The purpose of this invention is to provide a feeding and pressing device for a folding machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a feeding and pressing device for a folding machine, comprising a mounting rod, one end of which is fixedly connected to a frame, a rotating shaft rotatably connected to the inner wall of the frame, a drive wheel fixedly connected to the arc surface of the rotating shaft, a toothed plate fixedly connected to the arc surface of the drive wheel, a fixing plate fixedly connected to the inner wall of the frame, a rectangular tube fixedly connected to the surface of the fixing plate, a rectangular rod slidably passing through the inner wall of the rectangular tube, two circular holes being opened on the surface of the rectangular rod, a pin slidably passing through the surface of the rectangular tube, the size of the pin matching the size of the circular holes, a clamping plate fixedly connected to the end of the rectangular rod near the toothed plate, a threaded rod rotatably connected to the surface of the drive wheel, a drive arm threadedly connected to the surface of the threaded rod, a round rod rotatably connected to the surface of the drive arm, and wheels fixedly connected to both ends of the round rod.

[0006] The effect achieved by the above components is to flexibly adapt to the stacking height of the paper to be processed, thus avoiding paper pressing failure due to improper height.

[0007] Preferably, the arc surface of the round rod is fixedly connected to two stops, which are located on both sides of the drive arm.

[0008] The effect achieved by the above components is that the stop on the surface of the round rod prevents the round rod from moving laterally within the drive arm, thereby preventing the wheel from tilting to one side.

[0009] Preferably, the arc surface of the wheel is fixedly connected with a plurality of anti-slip strips.

[0010] The effect achieved by the above components is that the anti-slip strips on the surface of the wheel increase the friction between the wheel and the paper surface, prevent relative slippage between the wheel and the paper, and ensure that the paper can be synchronously fed to the paper feeding mechanism of the folding machine as the wheel rotates.

[0011] Preferably, a turntable is fixedly connected to the end of the threaded rod away from the drive wheel, and the vertical cross section of the turntable is in the shape of a cross.

[0012] The effect achieved by the above components is that the rotation of the turntable will cause the threaded rod to rotate on the surface of the drive wheel, and the turntable facilitates the rotation of the threaded rod.

[0013] Preferably, a guide rod slides through the surface of the drive arm, and the guide rod is fixedly connected to the surface of the drive wheel.

[0014] The effect achieved by the above components is that the drive arm moves and slides along the surface of the guide rod. The guide rod can restrict the drive arm from rotating synchronously with the threaded rod, so that the rotational motion of the threaded rod is converted into the linear sliding of the drive arm along the guide rod.

[0015] Preferably, a spring is fitted onto the arc surface of the pin, and the two ends of the spring are fixedly connected to the pin and the rectangular tube, respectively.

[0016] The effect achieved by the above components is that the pin is inserted into the round hole by means of the spring's contraction force. The spring improves the stability of the pin's insertion into the round hole and prevents the pin from coming out of the round hole due to shaking.

[0017] Preferably, an arc-shaped hole is provided on one side of the frame, and a limiting rod is fixedly connected to one end of the rotating shaft, with the limiting rod inserted into the arc-shaped hole.

[0018] The effect achieved by the above components is that the rotating shaft will drive the limiting rod to slide within the arc-shaped hole. The arc-shaped hole provides rotation guidance and angle restriction for the limiting rod, so that the drive wheel can only rotate within the range limited by the arc-shaped hole, avoiding the effect of excessive adjustment of the drive wheel.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This invention involves rotating a shaft, which in turn drives a drive wheel, which in turn drives a threaded rod, which in turn drives a drive arm, which in turn drives a wheel via a round rod. This allows for adjustment of the pressure exerted by the wheel on the paper, enabling flexible adaptation to the stacking height of the paper to be processed and preventing paper pressing failure due to improper height. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the frame of this utility model; Figure 3 This is a schematic diagram of the structure of the card plate of this utility model; Figure 4 This is a schematic diagram of the threaded rod of this utility model; Figure 5 This is a schematic diagram of the structure of the wheel part of this utility model.

[0021] In the diagram: 1. Mounting rod; 2. Frame; 3. Shaft; 4. Drive wheel; 5. Toothed plate; 6. Fixing plate; 7. Rectangular tube; 8. Rectangular rod; 9. Round hole; 10. Pin; 11. Clamping plate; 12. Threaded rod; 13. Drive arm; 14. Round rod; 15. Wheel; 16. Stop block; 17. Anti-slip strip; 18. Turntable; 19. Guide rod; 20. Spring; 21. Arc-shaped hole; 22. Limiting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-2 This utility model provides a technical solution: a feeding and pressing device for a folding machine, including a mounting rod 1, a frame 2 fixedly connected to one end of the mounting rod 1, a rotating shaft 3 rotatably connected to the inner wall of the frame 2, a drive wheel 4 fixedly connected to the arc surface of the rotating shaft 3, a toothed plate 5 fixedly connected to the arc surface of the drive wheel 4, a fixing plate 6 fixedly connected to the inner wall of the frame 2, a rectangular tube 7 fixedly connected to the surface of the fixing plate 6, a rectangular rod 8 slidably passing through the inner wall of the rectangular tube 7, two round holes 9 opened on the surface of the rectangular rod 8, a pin 10 slidably passing through the surface of the rectangular tube 7, the size of the pin 10 matching the size of the round holes 9, a clamping plate 11 fixedly connected to one end of the rectangular rod 8 near the toothed plate 5, a threaded rod 12 rotatably connected to the surface of the drive wheel 4, a drive arm 13 threadedly connected to the surface of the threaded rod 12, a round rod 14 rotatably connected to the surface of the drive arm 13, and wheels 15 fixedly connected to both ends of the round rod 14, achieving the function of flexibly adapting to the stacking height of the paper to be processed, avoiding paper pressing failure due to improper height.

[0024] Reference Figure 3-5As shown in this embodiment: Two stops 16 are fixedly connected to the arc surface of the round rod 14. The two stops 16 are located on both sides of the drive arm 13. The stops 16 on the surface of the round rod 14 prevent the round rod 14 from moving laterally within the drive arm 13, thereby preventing the wheel 15 from tilting to one side. Several anti-slip strips 17 are fixedly connected to the arc surface of the wheel 15. The anti-slip strips 17 on the surface of the wheel 15 increase the friction between the wheel 15 and the paper surface, preventing relative sliding between the wheel 15 and the paper, and ensuring that the paper can be synchronously fed to the folding machine paper feeding mechanism as the wheel 15 rotates. A turntable 18 is fixedly connected to the end of the threaded rod 12 away from the drive wheel 4. The vertical cross section of the turntable 18 is in the shape of a cross. The rotation of the turntable 18 will drive the threaded rod 12 to rotate on the surface of the drive wheel 4. The turntable 18 facilitates the rotation of the threaded rod 12. A guide rod 19 slides through the surface of the drive arm 13. The guide rod 19 is fixedly connected to the surface of the drive wheel 4. When the drive arm 13 moves, it slides along the surface of the guide rod 19. The guide rod 19 can limit the synchronous rotation of the drive arm 13 with the threaded rod 12, so that the rotational motion of the threaded rod 12 is converted into the linear sliding of the drive arm 13 along the guide rod 19. A spring 20 is sleeved on the arc surface of the pin 10. The two ends of the spring 20 are fixedly connected to the pin 10 and the rectangular tube 7, respectively. The pin 10 will be inserted into the round hole 9 by the force of the spring 20's contraction. The spring 20 improves the stability of the pin 10 inserted into the round hole 9 and prevents the pin 10 from falling out of the round hole 9 due to shaking. An arc-shaped hole 21 is provided on one side of the frame 2. A limit rod 22 is fixedly connected to one end of the rotating shaft 3. The limit rod 22 is inserted into the arc-shaped hole 21. The rotating shaft 3 will drive the limit rod 22 to slide in the arc-shaped hole 21. The arc-shaped hole 21 provides rotation guidance and angle restriction for the limit rod 22, so that the drive wheel 4 can only rotate within the range limited by the arc-shaped hole 21, avoiding the effect of excessive adjustment of the wheel 15.

[0025] Working principle: When the height of wheel 15 needs to be adjusted, first pull the pin 10. The pin 10 moves and slides inside the rectangular tube 7, gradually disengaging from the round hole 9. The movement of the pin 10 stretches the spring 20. After the pin 10 disengages from the round hole 9, pull the rectangular rod 8. The rectangular rod 8 moves inside the rectangular tube 7 and drives the locking plate 11 to move away from the toothed plate 5. After the locking plate 11 disengages from the toothed plate 5, rotate the rotating shaft 3. The rotation of the rotating shaft 3 drives the drive wheel 4 to rotate. At the same time, the rotating shaft 3 drives the limiting rod 22 to slide inside the arc-shaped hole 21. The arc-shaped hole 21 provides rotational guidance and angular adjustment for the limiting rod 22. The degree of restriction ensures that the drive wheel 4 can only rotate within the range defined by the arc-shaped hole 21, preventing the wheel 15 from over-adjusting. The rotation of the drive wheel 4 drives the threaded rod 12 to rotate, which in turn drives the drive arm 13 to rotate. The rotation of the drive arm 13, in turn, drives the wheel 15 to rotate via the round rod 14, thereby adjusting the pressure of the wheel 15 on the paper. Once the wheel 15 is adjusted to the appropriate pressure, the rectangular rod 8 is pressed. The rectangular rod 8 slides within the rectangular tube 7 and moves the clamping plate 11 towards the toothed plate 5 until the clamping plate 11 engages with the toothed plate 5. Then, the pin 10 is released, and the pin 10 will be propelled by the spring 20. The contraction force inserts into the round hole 9, and the pin 10 reaches the position of fixing the rectangular rod 8, thereby fixing the position of the clamping plate 11, thus fixing the adjusted wheel 15. Then, the turntable 18 is rotated, and the rotation of the turntable 18 will drive the threaded rod 12 to rotate on the surface of the drive wheel 4. The rotation of the threaded rod 12 will drive the drive arm 13 to move through the thread. The movement of the drive arm 13 will slide along the surface of the guide rod 19. The guide rod 19 can limit the synchronous rotation of the drive arm 13 with the threaded rod 12, so that the rotational motion of the threaded rod 12 is converted into the linear sliding of the drive arm 13 along the guide rod 19. The movement of the drive arm 13 will drive the round rod 14 to move. The movement of lever 14 will drive the movement of wheel 15, thereby adjusting the position of wheel 15 and increasing the distance between wheel 15 and the feed inlet, so that wheel 15 covers a wider area of ​​paper, ensuring that paper of different sizes can enter the folding machine flat along the center path of the feed inlet. The anti-slip strip 17 on the surface of wheel 15 increases the friction between wheel 15 and the paper surface, preventing relative slippage between wheel 15 and paper, and ensuring that paper can be synchronously fed to the paper feeding mechanism of the folding machine as wheel 15 rotates. At the same time, the stop 16 on the surface of round lever 14 prevents round lever 14 from moving laterally within drive arm 13, thereby preventing wheel 15 from tilting to one side.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper feeding and pressing device for a folding machine, comprising a mounting rod (1), characterized in that: One end of the mounting rod (1) is fixedly connected to a frame (2), the inner wall of the frame (2) is rotatably connected to a rotating shaft (3), the arc surface of the rotating shaft (3) is fixedly connected to a drive wheel (4), the arc surface of the drive wheel (4) is fixedly connected to a toothed plate (5), the inner wall of the frame (2) is fixedly connected to a fixing plate (6), the surface of the fixing plate (6) is fixedly connected to a rectangular tube (7), the inner wall of the rectangular tube (7) is slidably penetrated by a rectangular rod (8), and the surface of the rectangular rod (8) has two round holes ( 9), a pin (10) slides through the surface of the rectangular tube (7), the size of the pin (10) is adapted to the size of the round hole (9), a clamping plate (11) is fixedly connected to one end of the rectangular rod (8) near the toothed plate (5), a threaded rod (12) is rotatably connected to the surface of the drive wheel (4), a drive arm (13) is threadedly connected to the surface of the threaded rod (12), a round rod (14) is rotatably connected to the surface of the drive arm (13), and wheels (15) are fixedly connected to both ends of the round rod (14).

2. The feeding and pressing device for a folding machine according to claim 1, characterized in that: The circular rod (14) has two stops (16) fixedly connected to its arc surface, and the two stops (16) are located on both sides of the drive arm (13).

3. The feeding and pressing device for a folding machine according to claim 1, characterized in that: The wheel (15) has several anti-slip strips (17) fixedly connected to its arc surface.

4. The feeding and pressing device for a folding machine according to claim 1, characterized in that: The threaded rod (12) is fixedly connected to a turntable (18) at the end away from the drive wheel (4), and the vertical cross section of the turntable (18) is in the shape of a cross.

5. The feeding and pressing device for a folding machine according to claim 1, characterized in that: The surface of the drive arm (13) is slidably penetrated by a guide rod (19), and the guide rod (19) is fixedly connected to the surface of the drive wheel (4).

6. The feeding and pressing device for a folding machine according to claim 1, characterized in that: The arc surface of the pin (10) is fitted with a spring (20), and the two ends of the spring (20) are fixedly connected to the pin (10) and the rectangular tube (7) respectively.

7. The feeding and pressing device for a folding machine according to claim 1, characterized in that: An arc-shaped hole (21) is provided on one side of the frame (2), and a limiting rod (22) is fixedly connected to one end of the rotating shaft (3). The limiting rod (22) is inserted into the arc-shaped hole (21).

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