Paper conveying and rectifying device for a folding machine
By setting up a drive system with a U-shaped frame and a correction roller in the folding machine, combined with an inclined guide plate and a limiting plate, the problem of paper deviation during the paper feeding process is solved, achieving precise paper guidance and correction, and improving folding quality and equipment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-10
AI Technical Summary
Existing folding machines are prone to deviation during paper feeding. The existing correction mechanism is ineffective and cannot cope with complex deviations, resulting in crease position deviations, insufficient page edge alignment, and in severe cases, folding skew and paper jamming, affecting product quality and equipment efficiency.
A paper feeding and correction device for a folding machine was designed, including first and second U-shaped frames and correction rollers set on a support plate. The correction rollers are driven to rotate and move by a motor and a cylinder. Combined with an inclined guide plate and a limiting plate, the paper is accurately guided and corrected.
It effectively corrects paper misalignment, ensuring that the paper enters the folding machine at the correct angle, improving folding accuracy and equipment operating efficiency, reducing manual rework, and increasing product qualification rate.
Smart Images
Figure CN224477660U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding machine technology, and in particular to a paper feeding and correction device for a folding machine. Background Technology
[0002] Folding machines are key equipment in post-printing processing, primarily used to fold paper into the shapes and sizes required for book pages, brochures, and other formats. Their core components consist of a paper feeding system, a folding mechanism, and a paper receiving device. Controlled by mechanical transmission or a CNC system, they can perform various folding methods such as parallel folding, cross folding, and accordion folding. They are widely used in book printing, packaging, and office supplies. Based on their level of automation, they are available in manual, semi-automatic, and fully automatic models. Fully automatic models can be linked with printing presses to achieve assembly line production, significantly improving batch processing efficiency and replacing the tediousness and errors of manual folding.
[0003] In actual operation, existing folding machines are prone to paper deviation after entering the equipment due to various factors, such as uneven paper thickness, rough edges, fluctuating feed roller speed, uneven wear, airflow interference in the conveying path, and gap errors in guide components. The existing correction mechanism of the folding machine is ineffective, only able to passively block slight deviations and unable to cope with complex deviations in dynamic conveying. This directly leads to crease position deviations and insufficient page edge alignment in subsequent folding processes. In severe cases, it can even cause folding skew and paper jamming. This not only reduces the product qualification rate and requires manual rework, but also affects the continuous operating efficiency of the equipment, becoming a key bottleneck restricting the improvement of folding processing quality.
[0004] Therefore, it is necessary to invent a paper feeding and correction device for a folding machine to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a paper feeding and correction device for a folding machine, in order to solve the problem mentioned in the background art where existing folding machines are prone to paper deviation after entering the equipment due to various factors, such as uneven paper thickness, rough edges, fluctuating paper feed roller speed, uneven wear, airflow interference in the conveying path, and gap errors in guide components. The existing correction mechanism of the folding machine is ineffective, only able to passively block slight deviations, and is difficult to deal with complex deviations in dynamic conveying. This directly leads to crease position deviations and insufficient page edge alignment in subsequent folding processes, and in severe cases, even folding skew and paper jamming. This not only reduces the product qualification rate and requires manual rework, but also affects the continuous operating efficiency of the equipment, becoming a key bottleneck restricting the improvement of folding processing quality.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper conveying and correction device for a folding machine, comprising a folding machine body, a feed inlet on one side of the folding machine body, a discharge plate on the other side of the folding machine body, a support plate at the bottom of the feed inlet, mounting blocks symmetrically fixedly connected to the bottom of the support plate, the mounting blocks being fixedly connected to the side of the folding machine body by bolts, first U-shaped frames symmetrically fixedly connected to both sides of the top of the support plate, guide rollers at the bottom of the first U-shaped frames, and a second U-shaped frame between the two first U-shaped frames;
[0007] The bottom end of the second U-shaped frame is provided with a second fixed plate, and two sets of second side plates are symmetrically fixedly connected to the bottom end of the second fixed plate. A correction roller is rotatably arranged between each pair of second side plates. A second motor is fixedly connected to the outside of the second side plate, and the second motor is connected to the correction roller in a transmission connection.
[0008] As a preferred embodiment, a second cylinder is fixedly connected to the top of the second U-shaped frame, the second fixed plate is drivenly connected to the output end of the second cylinder, and the second fixed plate is slidably connected to the bottom end of the second U-shaped frame.
[0009] As a preferred embodiment, a first cylinder is fixedly connected to the top of the first U-shaped frame, a first fixed plate is fixedly connected to the output end of the first cylinder, a first side plate is fixedly connected to both sides of the first fixed plate, a guide roller is rotatably arranged between each pair of first side plates, a first motor is fixedly connected to the side of the first side plate, and the first motor is connected to the guide roller in a transmission connection.
[0010] As a preferred embodiment, an inclined guide plate is fixedly connected to one side of the bearing plate, an inclined groove is provided at the top of the inclined guide plate, and limit plates are symmetrically fixedly connected to the side of the inclined guide plate near the bearing plate.
[0011] As a preferred embodiment, a locking block is fixedly connected to the side of the limiting plate, and a second mounting hole is provided on the inner side of the limiting plate.
[0012] As a preferred embodiment, the support plate has slots on both sides and a first mounting hole on the side of the support plate. The slots are corresponding to the blocks, and the first mounting hole is corresponding to the second mounting hole.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] This invention features two first U-shaped frames symmetrically arranged at the top of a support plate, with guide rollers at the bottom of each frame to effectively guide the paper to be folded, allowing it to move on the support plate. A second U-shaped frame is arranged between the two first U-shaped frames, with two correction rollers symmetrically arranged at the bottom of each frame. These correction rollers can be controlled by a second motor to drive them to rotate, effectively correcting the paper moving on the support plate. This ensures the paper moves at the correct angle and enters the folding machine body for subsequent folding.
[0015] This invention features an inclined guide plate on one side of a support plate, with an inclined groove on the inner side of the guide plate. This allows paper to be placed at the top of the groove for subsequent folding, facilitating its sliding down. Limiting plates are symmetrically fixed to both sides of the guide plate, with locking blocks on their sides. These blocks are slidably positioned within locking grooves, effectively limiting the limiting plates and locking blocks and thus securing the inclined guide plate. The inclined guide plate facilitates the placement of paper and allows it to slide down. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the structure of the bearing plate in this utility model;
[0018] Figure 3 This is a schematic diagram of the inclined guide plate in this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the first U-shaped frame in this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the second U-shaped frame in this utility model.
[0021] In the picture:
[0022] 1. Folding machine body; 11. Feed inlet; 12. Discharge plate;
[0023] 2. Bearing plate; 21. First U-shaped frame; 211. First cylinder; 212. First fixing plate; 213. First side plate; 214. Guide roller; 215. First motor; 22. Second U-shaped frame; 221. Second cylinder; 222. Second fixing plate; 223. Second side plate; 224. Correcting roller; 225. Second motor; 23. Mounting block; 24. Slot; 25. First mounting hole;
[0024] 3. Inclined guide plate; 31. Inclined groove; 32. Limiting plate; 33. Locking block; 34. Second mounting hole. 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] Please see the appendix Figure 1 - Appendix Figure 5 A paper feeding and correction device for a folding machine includes a folding machine body 1. The working principle of the folding machine body 1 is to fold the paper into a preset size through a series of coordinated mechanisms. The process is roughly as follows: First, the paper to be folded is smoothly fed into the folding machine body 1. Then, the paper moves along a fixed path under the guidance of the guide device. At the same time, the positioning system detects the paper edge or specific marks and calibrates the paper position to ensure the accuracy of the folding position. When the paper reaches the preset folding point, the folding mechanism starts to work, using the friction of the rollers to clamp the paper and feed it forward, forming a fold at the crease. For paper with multiple folding requirements, the machine will complete different folding methods such as parallel folding and vertical folding in a set order through the sequential action of multiple folding units. The speed and action of each unit are coordinated by the control system to avoid paper jams or folding errors. Finally, the folded paper is sorted and stacked by the output mechanism to form a neat finished product. The whole process achieves efficient and precise automated folding through the cooperation of mechanical transmission and electrical control. The folding machine body 1 is an existing mature technology and will not be described in detail here.
[0027] A feeding port 11 is provided on one side of the folding machine body 1, and a discharge plate 12 is provided on the other side of the folding machine body 1. A bearing plate 2 is provided at the bottom of the feeding port 11. Mounting blocks 23 are symmetrically fixedly connected to the bottom of the bearing plate 2. The mounting blocks 23 are fixedly connected to the side of the folding machine body 1 by bolts. A first U-shaped frame 21 is symmetrically fixedly connected to both sides of the top of the bearing plate 2. A guide roller 214 is provided at the bottom of the first U-shaped frame 21. A second U-shaped frame 22 is provided between the two first U-shaped frames 21.
[0028] The bottom end of the second U-shaped frame 22 is provided with a second fixed plate 222. Two sets of second side plates 223 are symmetrically fixedly connected to the bottom end of the second fixed plate 222. A correction roller 224 is rotatably arranged between the two second side plates 223. A second motor 225 is fixedly connected to the outside of the second side plate 223. The second motor 225 is connected to the correction roller 224 in a transmission connection.
[0029] Specifically, two first U-shaped frames 21 are symmetrically arranged at the top of the support plate 2. The bottom of the first U-shaped frame 21 is provided with guide rollers 214, which can effectively guide the paper to be folded later, so that it can move on the support plate 2. A second U-shaped frame 22 is arranged between the two first U-shaped frames 21. The bottom of the second U-shaped frame 22 is symmetrically arranged with two correction rollers 224. The two correction rollers 224 can be controlled by the second motor 225, thereby driving the correction rollers 224 to rotate. This can effectively correct the paper moving on the support plate 2, so that the paper can move at the correct angle and enter the folding machine body 1 for subsequent folding.
[0030] Please see the appendix Figure 5 The top of the second U-shaped frame 22 is fixedly connected to the second cylinder 221, the second fixing plate 222 is drivenly connected to the output end of the second cylinder 221, and the second fixing plate 222 is slidably connected to the bottom end of the second U-shaped frame 22.
[0031] Specifically, a second cylinder 221 is fixedly connected to the top of the second U-shaped frame 22, and a second fixed plate 222 is driven to the output end of the second cylinder 221 and slidably connected to the bottom end of the second U-shaped frame 22. Thus, the second cylinder 221 can drive the second fixed plate 222 to move up and down, thereby driving the correction roller 224 set at the bottom end of the second fixed plate 222 to move up and down, so that the correction roller 224 can be pressed against the top of the paper and drive the paper to perform correction work.
[0032] Please see the appendix Figure 4 A first cylinder 211 is fixedly connected to the top of the first U-shaped frame 21. A first fixed plate 212 is fixedly connected to the output end of the first cylinder 211. A first side plate 213 is fixedly connected to both sides of the first fixed plate 212. A guide roller 214 is rotatably arranged between the two first side plates 213. A first motor 215 is fixedly connected to the side of the first side plate 213. The first motor 215 is connected to the guide roller 214 in a transmission connection.
[0033] Specifically, by setting a first cylinder 211, the first cylinder 211 can drive the first fixed plate 212 to move up and down. The first fixed plate 212 has a first side plate 213 fixedly connected to both sides. A guide roller 214 is rotatably arranged between the two first side plates 213. A first motor 215 is fixedly connected to the side of the first side plate 213. The first motor 215 is connected to the guide roller 214 for transmission, so that the first cylinder 211 can drive the guide roller 214 to move downward, so that the guide roller 214 is close to the top of the paper. The first motor 215 can drive the guide roller 214 to rotate, thereby moving the paper.
[0034] Please see the appendix Figure 1 and Figure 3A guide plate 3 is fixedly connected to one side of the bearing plate 2. A groove 31 is provided at the top of the guide plate 3. A limiting plate 32 is symmetrically fixedly connected to the side of the guide plate 3 near the bearing plate 2. A locking block 33 is fixedly connected to the side of the limiting plate 32. A second mounting hole 34 is provided on the inner side of the limiting plate 32.
[0035] Specifically, an inclined guide plate 3 is provided on one side of the bearing plate 2, and an inclined groove 31 is provided on the inner side of the inclined guide plate 3, so that the paper that needs to be folded later can be placed at the top of the inclined groove 31, and the paper can slide down from the inner side of the inclined groove 31.
[0036] Please see the appendix Figure 1 , Figure 2 and Figure 3 The bearing plate 2 has slots 24 on both sides and a first mounting hole 25 on the side. The slots 24 are corresponding to the card block 33, and the first mounting hole 25 is corresponding to the second mounting hole 34.
[0037] Specifically, by providing slots 24 on both sides of the bearing plate 2, and correspondingly setting the slots 24 with the slot blocks 33, the slot blocks 33 can be slidably set inside the slots 24 and limited to the inside of the slots 24. After the slot blocks 33 are fully inserted into the inside of the slots 24, the first mounting hole 25 is aligned with the second mounting hole 34, so that the limiting plate 32 can be fixedly connected to the side of the bearing plate 2 using bolts, thereby fixing the inclined guide plate 3 to the side of the bearing plate 2.
[0038] The working principle of this utility model is as follows: In specific use, the paper is placed on the inclined guide plate 3 and slides along the inclined groove 31 to the top of the support plate 2. The paper slides to the bottom of the first U-shaped frame 21. The bottom of the first U-shaped frame 21 is equipped with a camera and sensor to observe whether the paper is deviated. If deviation occurs, the second cylinder 221 is activated, which drives the second fixed plate 222 to move downward, so that the correction roller 224 is close to the top of the paper. The second motor 225 is activated to drive the correction roller 224 to rotate. The correction roller 224 is set at both ends of the paper, and the correction rollers 224 on both sides can rotate in opposite directions under the drive of the second motor 225, thereby effectively correcting the deviation of the paper. After the deviation is corrected, the guide roller 214 at the bottom of the first U-shaped frame 21 on the other side drives the paper into the inner side of the folding machine body 1 for subsequent folding work.
[0039] 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 and correction device for a folding machine, comprising a folding machine body (1), wherein a feed inlet (11) is provided on one side of the folding machine body (1), and a discharge plate (12) is provided on the other side of the folding machine body (1), characterized in that: The bottom end of the feed inlet (11) is provided with a support plate (2), and the bottom end of the support plate (2) is symmetrically fixedly connected with an installation block (23). The installation block (23) is fixedly connected to the side of the folding machine body (1) by bolts. The top two sides of the support plate (2) are symmetrically fixedly connected with a first U-shaped frame (21). The bottom end of the first U-shaped frame (21) is provided with a guide roller (214), and a second U-shaped frame (22) is provided between the two first U-shaped frames (21). The bottom end of the second U-shaped frame (22) is provided with a second fixed plate (222), and two sets of second side plates (223) are symmetrically fixedly connected to the bottom end of the second fixed plate (222). A correction roller (224) is rotatably arranged between the two second side plates (223). A second motor (225) is fixedly connected to the outside of the second side plate (223), and the second motor (225) is connected to the correction roller (224) in a transmission connection.
2. The paper feeding and correction device for a folding machine according to claim 1, characterized in that: The top of the second U-shaped frame (22) is fixedly connected to the second cylinder (221), the second fixing plate (222) is drivenly connected to the output end of the second cylinder (221), and the second fixing plate (222) is slidably connected to the bottom end of the second U-shaped frame (22).
3. The paper feeding and correction device for a folding machine according to claim 2, characterized in that: A first cylinder (211) is fixedly connected to the top of the first U-shaped frame (21), and a first fixed plate (212) is fixedly connected to the output end of the first cylinder (211). A first side plate (213) is fixedly connected to both sides of the first fixed plate (212). A guide roller (214) is rotatably arranged between the two first side plates (213). A first motor (215) is fixedly connected to the side of the first side plate (213). The first motor (215) is connected to the guide roller (214) in a transmission connection.
4. The paper feeding and correction device for a folding machine according to claim 3, characterized in that: An inclined guide plate (3) is fixedly connected to one side of the bearing plate (2). An inclined groove (31) is provided at the top of the inclined guide plate (3). A limit plate (32) is symmetrically fixedly connected to the side of the inclined guide plate (3) near the bearing plate (2).
5. The paper feeding and correction device for a folding machine according to claim 4, characterized in that: The side of the limiting plate (32) is fixedly connected to a locking block (33), and a second mounting hole (34) is provided on the inner side of the limiting plate (32).
6. The paper feeding and correction device for a folding machine according to claim 5, characterized in that: The support plate (2) has slots (24) on both sides and a first mounting hole (25) on the side. The slots (24) are corresponding to the card block (33), and the first mounting hole (25) is corresponding to the second mounting hole (34).