A paper feeding mechanism of a folding machine

Abstract

This utility model discloses a paper feeding mechanism for a folding machine, belonging to the field of folding machine technology, and aims to solve the technical problem of paper curling upwards and causing paper blockage during the paper feeding process of existing folding machines. The paper feeding mechanism includes a housing, within which a paper feeding shaft is rotatably mounted. A paper feeding wheel assembly is mounted on the paper feeding shaft. A paper feeding motor for driving the paper feeding shaft to rotate is mounted at one end of the housing. A feed plate is located on one side of the housing, and a pair of side baffles are arranged on the upper surface of the feed plate, perpendicular to the paper feeding shaft. An adjustment component is provided on the feed plate for driving the pair of side baffles to move closer together and further apart. A support block is provided at the bottom of the opposite side of the pair of side baffles. This paper feeding mechanism solves the problem of paper curling upwards and ensures smooth paper feeding.

Description

Technical Field

[0001] This utility model belongs to the field of folding machine technology, specifically relating to a paper feeding mechanism for a folding machine. Background Technology

[0002] As a key component of printing presses, the folding machine plays a crucial role in web-based rotary printing units. Its main function is to cut, fold, and output pre-printed paper strips according to the specifications of the printed materials. In the printing production process, the efficient and stable operation of the folding machine is essential for ensuring the quality of the printed materials and production efficiency. If the folding machine malfunctions or operates unstablely, it may lead to inaccurate folding of printed materials, paper accumulation, and other problems, which in turn affect subsequent binding and packaging processes, increasing production costs and time.

[0003] Currently, when folding paper in a folding machine, paper feed rollers are usually used to transport stacked paper. However, after printing, the edges and corners of the paper may curl up due to factors such as heat, which may cause the paper to shift or fold during transport. This can prevent the paper from smoothly entering the roll for folding, resulting in paper blockage. Therefore, this application proposes a paper feeding mechanism for a folding machine. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a paper feeding mechanism for a folding machine, which aims to solve the technical problem that the paper tends to curl upwards and cause paper blockage during the paper feeding process of the folding machine in the existing technology.

[0005] Technical solution

[0006] To solve the above-mentioned technical problems, this utility model provides a paper feeding mechanism for a folding machine, including a housing, a paper feeding shaft rotatably installed inside the housing, a paper feeding wheel assembly on the paper feeding shaft, a paper feeding motor for driving the paper feeding shaft to rotate at one end of the housing, a feed board on one side of the housing, a pair of side baffles on the upper surface of the feed board, the side baffles being distributed perpendicular to the paper feeding shaft, an adjustment component for driving the pair of side baffles to move closer and further apart on the feed board, and a support block at the bottom of the opposite side of the pair of side baffles.

[0007] Preferably, a bottom support plate is provided at the bottom of the pair of side baffles facing each other, the bottom support plate is slidably attached to the upper surface of the feed paper, and the support block is set on the bottom support plate.

[0008] Preferably, the feed paperboard has guide grooves that are distributed perpendicular to the side baffles. The adjustment assembly includes a pair of fixing blocks fixed to the lower surface of the feed paperboard. A bidirectional lead screw is rotatably installed between the pair of fixing blocks. A pair of sleeve blocks are symmetrically threaded on the bidirectional lead screw. The pair of sleeve blocks pass through the guide grooves and are connected to a pair of bottom support plates. A handle is rotatably provided on one of the fixing blocks, and the handle is coaxially connected to the bidirectional lead screw.

[0009] Preferably, the sleeve block slides and fits against the lower surface of the feed paperboard, and an auxiliary positioning element is provided on the side of the pair of side baffles that are far apart from each other.

[0010] Preferably, the auxiliary positioning component includes an ear block fixed to the side baffle and a bolt with vertical threads passing through the ear block, and a rubber block is provided at the bottom end of the bolt.

[0011] Preferably, the upper surface of the feed paperboard is printed with scale lines.

[0012] Preferably, the paper feeding wheel assembly includes main wheels coaxially mounted on the paper feeding shaft, and multiple main wheels are arranged side by side.

[0013] Preferably, the paper feeding roller assembly further includes a secondary roller disposed on the side of the paper feeding shaft facing the paper feed board. Connecting plates are rotatably mounted on both sides of the secondary roller, and the other end of the connecting plate is rotatably sleeved with the paper feeding shaft. Pulleys are mounted on the paper feeding shaft and on one side of the secondary roller. A synchronous belt is fitted between a pair of the pulleys. The secondary roller is located between the support block and the paper feeding shaft.

[0014] Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, through the setting of a pair of side baffles and an adjustment component, allows the adjustment component to drive a pair of bottom plates to move the pair of side baffles closer together or further apart. With the help of scale lines, the distance between the pair of side baffles can be adjusted so that after the printing paper is stacked on the pair of bottom plates, the pair of side baffles can limit the two sides of the printing paper, ensuring that the printing paper is stacked neatly and avoiding the phenomenon of the printing paper being scattered and affecting the paper delivery.

[0017] This invention utilizes a paper feeding roller assembly. A connecting plate, rotating between the auxiliary rollers and the paper feeding shaft, pushes the auxiliary rollers against the top layer of the printing paper. This activates the paper feeding motor, causing the paper feeding shaft to rotate. The paper feeding shaft then drives multiple main rollers to rotate. Simultaneously, the auxiliary rollers and the paper feeding shaft are connected by pulleys and a synchronous belt. The rotating auxiliary rollers transport the top layer of printing paper towards the bottom of the main rollers. Under the rotation of the main rollers, the paper is continuously fed into the folding machine for folding. Furthermore, because a support block is provided on the bottom tray, the support block supports the corresponding arched position of the printed paper after it is stacked on the bottom tray. Combined with the auxiliary rollers' position between the support block and the paper feeding shaft, the end of the printed paper facing the auxiliary and main rollers will have a downward slope. This structural design ensures that when the paper feeding shaft drives the main and auxiliary rollers to rotate, the printed paper can be smoothly transported under the auxiliary and main rollers, preventing the printed paper from warping or bending and ensuring smooth paper feeding. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the paper feeding roller assembly in this utility model;

[0021] Figure 3 This is a schematic diagram of the paperboard structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the side baffle and adjustment assembly in this utility model;

[0023] Figure 5 This is a schematic diagram of the auxiliary positioning component in this utility model.

[0024] The markings in the attached diagram are as follows: 1. Machine casing; 2. Feed paperboard; 3. Side baffle; 4. Adjustment assembly; 5. Paper feed shaft; 6. Paper feed roller assembly; 7. Paper feed motor; 8. Main roller; 9. Auxiliary roller; 10. Connecting plate; 11. Pulley; 12. Synchronous belt; 13. Scale line; 14. Guide groove; 15. Bottom support plate; 16. Fixing block; 17. Two-way lead screw; 18. Sleeve block; 19. Handle; 20. Auxiliary positioning component; 21. Support block; 22. Ear block; 23. Bolt; 24. Rubber block. Detailed Implementation

[0025] 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.

[0026] This embodiment provides a paper feeding mechanism for a folding machine, the structural diagram of which is shown below. Figures 1-5 As shown, the device includes a housing 1, inside which a paper feed shaft 5 is rotatably mounted. A paper feed roller assembly 6 is mounted on the paper feed shaft 5. A paper feed motor 7 for driving the rotation of the paper feed shaft 5 is mounted at one end of the housing 1. A feed paperboard 2 is located on one side of the housing 1. The paper feed roller assembly 6 includes multiple main rollers 8 coaxially mounted on the paper feed shaft 5. The paper feed roller assembly 6 also includes auxiliary rollers 9 located on the side of the paper feed shaft 5 facing the feed paperboard 2. Connecting plates 10 are rotatably mounted on both sides of the auxiliary rollers 9, with the other end of the connecting plates 10 rotatably connected to the paper feed shaft 5. Pulleys 11 are mounted on the paper feed shaft 5 and on one side of the auxiliary rollers 9. A timing belt 12 is fitted between the pulleys 11. The printing paper is stacked on the feed plate 2. The connecting plate 10, which is rotated between the two sides of the auxiliary wheel 9 and the paper feed shaft 5, pushes the auxiliary wheel 9 to abut against the top of the printing paper. The paper feed motor 7 is started to drive the paper feed shaft 5 to rotate. The paper feed shaft 5 drives multiple main wheels 8 to rotate. At the same time, the auxiliary wheel 9 and the paper feed shaft 5 are driven by the pulleys 11 and the timing belt 12. The paper feed shaft 5 drives the auxiliary wheel 9 to rotate. The rotation of the auxiliary wheel 9 conveys the top of the printing paper toward the bottom of the main wheel 8. Under the rotation of the main wheel 8, the paper can be continuously conveyed into the folding machine for folding operation.

[0027] In a further embodiment, a pair of side baffles 3 are provided on the upper surface of the feed paperboard 2. The side baffles 3 are distributed perpendicular to the paper feed shaft 5. An adjustment assembly 4 is provided on the feed paperboard 2 to drive the pair of side baffles 3 to move closer and further apart. A bottom support plate 15 is provided at the bottom of the opposite side of the pair of side baffles 3. The bottom support plate 15 slides against the upper surface of the feed paperboard 2. A guide groove 14 is provided on the feed paperboard 2. The guide groove 14 is distributed perpendicular to the side baffles 3. The adjustment assembly 4 includes a pair of fixing blocks 16 fixed to the lower surface of the feed paperboard 2. A bidirectional lead screw 17 is rotatably installed between the pair of fixing blocks 16. A pair of sleeve blocks 18 are symmetrically threaded on the bidirectional lead screw 17. The sleeve blocks 18 pass through the guide grooves 14 and are connected to a pair of bottom support plates 15. A handle 19 is rotatably mounted on one of the fixed blocks 16, and the handle 19 is coaxially connected to a bidirectional lead screw 17. The sleeve blocks 18 slide against the lower surface of the feed plate 2. By turning the handle 19, the bidirectional lead screw 17 is rotated, causing the pair of sleeve blocks 18 to move closer together with the pair of bottom support plates 15 and the pair of side baffles 3. This allows adjustment of the spacing between the side baffles 3, allowing printing paper to be stacked on the bottom support plate 15 facing the pair of side baffles 3. The side baffles 3 limit the movement of the printing paper on both sides, ensuring neat stacking and preventing the paper from scattering and affecting paper feeding. The upper surface of the feed plate 2 is engraved with scale lines 13 to assist in adjusting the spacing between the pair of side baffles 3.

[0028] In this embodiment, an auxiliary positioning component 20 is provided on the side of a pair of side baffles 3 that are far apart from each other. The auxiliary positioning component 20 includes an ear block 22 fixed on the side baffle 3 and a bolt 23 with vertical threads passing through the ear block 22. A rubber block 24 is provided at the bottom end of the bolt 23. Tightening the bolt 23 pushes the rubber block 24 to press against the feed paper 2, which can assist in positioning the side baffle 3 and prevent the side baffle 3 from moving on the feed paper 2, causing the printing paper to scatter.

[0029] In a further embodiment, a support block 21 is provided at the bottom of one side of a pair of side baffles 3 facing each other. Specifically, the support block 21 is provided on the bottom support plate 15, and the auxiliary wheel 9 is located between the support block 21 and the paper feeding shaft 5. With this structure, after the printing paper is stacked on the bottom support plate 15, the support block 21 can support the corresponding position of the printing paper to arch. In addition, the auxiliary wheel 9 is located between the support block 21 and the paper feeding shaft 5. Therefore, the end of the printing paper facing the auxiliary wheel 9 and the main wheel 8 will have a downward slope. When the paper feeding shaft 5 drives the main wheel 8 and the auxiliary wheel 9 to rotate, the printing paper can be smoothly fed under the auxiliary wheel 9 and the main wheel 8, avoiding the phenomenon of the printing paper bending upward and ensuring the smoothness of the printing paper feeding.

[0030] Working principle: In use, the printing paper is stacked on the base plate 15 between a pair of side baffles 3. Tightening the handle 19 drives the bidirectional lead screw 17 to rotate, causing a pair of sleeve blocks 18 to move the pair of base plates 15 and the pair of side baffles 3 closer together, so that the pair of side baffles 3 contact the sides of the printing paper, ensuring that the printing paper is neatly stacked. Then, tightening the bolt 23 pushes the rubber block 24 to press against the feed plate 2, assisting in the positioning of the side baffles 3 and preventing the side baffles 3 from moving on the feed plate 2 and causing the printing paper to scatter. Next, the connecting plate 10, which is rotated between the two sides of the auxiliary wheel 9 and the paper feed shaft 5, pushes the auxiliary wheel 9 to abut against the top of the printing paper, and starts the paper feed motor 7 to drive the paper feed shaft 5 to rotate. The paper feed shaft 5 drives multiple main wheels 8 to rotate. At the same time, the auxiliary wheel 9 and the paper feed shaft 5 are connected by pulleys. Driven by the synchronous belt 11 and the synchronous belt 12, the paper feed shaft 5 drives the auxiliary wheel 9 to rotate. The rotation of the auxiliary wheel 9 conveys the top of the printing paper toward the bottom of the main wheel 8. Under the rotation of the main wheel 8, the paper is continuously conveyed into the folding machine for folding. Furthermore, since the bottom support plate 15 is provided with a support block 21, after the printing paper is stacked on the bottom support plate 15, the support block 21 can support the corresponding position of the printing paper to arch. In addition, the auxiliary wheel 9 is located between the support block 21 and the paper feed shaft 5. Therefore, the end of the printing paper facing the auxiliary wheel 9 and the main wheel 8 will have a downward slope. This structural design allows the printing paper to be smoothly conveyed under the auxiliary wheel 9 and the main wheel 8 when the paper feed shaft 5 drives the main wheel 8 and the auxiliary wheel 9 to rotate, avoiding the phenomenon of the printing paper bending upwards and ensuring the smoothness of the printing paper conveying.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A paper feeding mechanism for a folding machine, comprising a housing (1), characterized in that: The machine housing (1) is rotatably installed with a paper feeding shaft (5), and a paper feeding wheel assembly (6) is provided on the paper feeding shaft (5). A paper feeding motor (7) for driving the paper feeding shaft (5) to rotate is installed at one end of the machine housing (1). A feed paperboard (2) is provided on one side of the machine housing (1). A pair of side baffles (3) are provided on the upper surface of the feed paperboard (2). The side baffles (3) are distributed perpendicular to the paper feeding shaft (5). An adjustment component (4) for driving the pair of side baffles (3) to move closer and further apart is provided on the feed paperboard (2). A support block (21) is provided at the bottom of the opposite side of the pair of side baffles (3).

2. The paper feeding mechanism of a folding machine according to claim 1, characterized in that, A bottom support plate (15) is provided on the bottom of one side of the pair of side baffles (3). The bottom support plate (15) slides and fits against the upper surface of the feed plate (2). The support block (21) is set on the bottom support plate (15).

3. The paper feeding mechanism of a folding machine according to claim 2, characterized in that, The feed paperboard (2) is provided with a guide groove (14), which is distributed perpendicular to the side baffle (3). The adjustment component (4) includes a pair of fixing blocks (16) fixed on the lower surface of the feed paperboard (2). A bidirectional screw (17) is rotatably installed between the pair of fixing blocks (16). A pair of sleeve blocks (18) are symmetrically threaded on the bidirectional screw (17). The pair of sleeve blocks (18) pass through the guide groove (14) and are connected to a pair of bottom plates (15). A handle (19) is rotatably provided on one of the fixing blocks (16), and the handle (19) is coaxially connected to the bidirectional screw (17).

4. The paper feeding mechanism of a folding machine according to claim 3, characterized in that, The sleeve block (18) slides and fits against the lower surface of the feed paperboard (2), and an auxiliary positioning element (20) is provided on the side of the pair of side baffles (3) that are far apart from each other.

5. A folding machine paper feeding mechanism according to claim 4, characterized in that, The auxiliary positioning component (20) includes an ear block (22) fixed on the side baffle (3) and a bolt (23) with a vertical thread passing through the ear block (22), and a rubber block (24) is provided at the bottom end of the bolt (23).

6. The paper feeding mechanism of a folding machine according to claim 1, characterized in that, The upper surface of the feed paperboard (2) is engraved with scale lines (13).

7. A folding machine paper feeding mechanism according to claim 1, characterized in that, The paper feeding wheel assembly (6) includes a main wheel (8) coaxially mounted on the paper feeding shaft (5), and multiple main wheels (8) are arranged side by side.

8. A folding machine paper feeding mechanism according to claim 7, characterized in that, The paper feeding wheel assembly (6) also includes a secondary wheel (9) disposed on the side of the paper feeding shaft (5) facing the paper feed board (2). Connecting plates (10) are rotatably mounted on both sides of the secondary wheel (9). The other end of the connecting plate (10) is rotatably sleeved with the paper feeding shaft (5). Pulleys (11) are mounted on the paper feeding shaft (5) and on one side of the secondary wheel (9). A synchronous belt (12) is fitted between a pair of pulleys (11). The secondary wheel (9) is located between the support block (21) and the paper feeding shaft (5).

Images