Adjustable folding mechanism for printing press

Abstract

The utility model relates to printing machine folding paper technical field discloses a kind of adjustable folding mechanism for printing machine, including support plate, the outer wall front side of support plate is provided with adjusting mechanism, the outer wall rear side of adjusting mechanism is provided with quick mounting mechanism, the outer wall right side of support plate is fixedly connected with conveyor, the top of conveyor is provided with deviation rectifying mechanism, the inner wall of support plate is provided with conveying mechanism, the bottom of support plate is provided with lifting mechanism, the adjusting mechanism includes two limit shell and guide shell, the bottom of limit shell is all set with sliding slot in front and back side.The utility model in, by rotating two-way screw rod one drives limit block one in sliding slot movement, adjust paper width adaptation interval, rotating threaded rod drives top plate sliding adjustment folding length, when conveying, motor drive gear drives conveying roller rotation and conveys paper, folding is completed by limit shell and other components, the folding of different size paper according to required length is realized.

Description

Technical Field

[0001] This utility model relates to the field of paper folding technology for printing presses, and in particular to an adjustable folding mechanism for printing presses. Background Technology

[0002] In the printing industry, printed paper needs to be folded to facilitate subsequent binding and packaging processes. Traditional printing press folding mechanisms have some limitations. On the one hand, their folding size and angle adjustment is not flexible enough, making it difficult to adapt to the folding needs of different specifications and types of paper.

[0003] A search revealed Chinese patent publication number CN211003799U, which discloses a fully automatic printing press continuous folding and receiving mechanism, including a buffer paper storage mechanism and a folding and receiving mechanism. The buffer paper storage mechanism includes a buffer paper storage mounting frame, a fixed roller, a floating roller, and a vertical lifting drive unit for the floating roller. The folding and receiving mechanism includes a folding and receiving mounting frame, an active paper conveyor roller, a retractable paper pressure roller, a folding mechanism assembly, a paper cutting mechanism, a liftable receiving table, a paper pusher, and a conveyor belt. This fully automatic printing press uses a continuous folding and receiving mechanism to feed and fold paper onto the receiving table via the paper conveyor roller. When the required quantity of each stack of products is reached during printing production, the paper cutting mechanism automatically cuts the paper, and the paper pusher automatically pushes the paper onto the conveyor belt. The entire process does not require stopping the printing press and requires no manual intervention, achieving automated operation of the receiving mechanism, greatly reducing labor costs and improving equipment efficiency. However, in actual use, this device lacks an adjustment mechanism, is only suitable for fixed-size paper, and cannot be adjusted according to the size of the paper or the length of the fold, reducing the device's practicality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an adjustable folding mechanism for printing presses, which aims to improve the existing technology that lacks an adjustment mechanism, is only applicable to paper of a fixed size, and cannot be adjusted according to the size of the paper and the length of the fold, thus reducing the practicality of the device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable folding mechanism for a printing press, comprising a support plate, an adjustment mechanism provided on the front side of the outer wall of the support plate, a quick-release mechanism provided on the rear side of the outer wall of the adjustment mechanism, a conveyor fixedly connected to the right side of the outer wall of the support plate, a correction mechanism provided on the top of the conveyor, a conveying mechanism provided on the inner wall of the support plate, and a lifting mechanism provided on the bottom of the support plate. The adjustment mechanism includes two limiting shells and a guide shell. The bottom front and rear sides of each limiting shell have sliding grooves. The inner walls of each limiting shell are slidably connected to a limiting block. The bottom ends of the two limiting blocks are slidably connected to their corresponding sliding grooves. A bidirectional lead screw is rotatably connected to the bottom of each limiting shell. The inner walls of the two limiting blocks are threadedly connected to the outer wall of the bidirectional lead screw. A threaded rod is threadedly connected to the left side of the outer wall of the limiting shell. The right end of the threaded rod passes through the limiting shell and is fixedly connected to a top plate. The outer wall of the top plate is slidably connected to the inner wall of the limiting shell. The rear end of the guide shell is fixedly connected to the right side of the front middle of the outer wall of the support plate. A guide component is provided on the top of the guide shell.

[0006] Through the above technical solution: the support plate serves as the basic structure, providing installation support for other components. The adjustment mechanism is key to achieving paper folding size adjustment. Two limiting shells and a guide shell fit tightly together. The sliding groove at the bottom of the limiting shell is slidably connected to a limiting block. When the bidirectional screw rotates, it drives the limiting block to move within the sliding groove, thereby adjusting the spacing between the limiting blocks to accommodate folding requirements of different paper widths. Simultaneously, the rotation of the threaded rod on the left side of the outer wall of the limiting shell allows the connected top plate to slide on the inner wall of the limiting shell, thus adjusting the extension length of the top plate to meet the requirements of different folding lengths of paper. The guide shell is fixed to the right side of the front center of the support plate, and its top guide component plays a guiding role during paper folding. The quick-release mechanism is located at the adjustment... The rear side of the mechanism facilitates the quick installation and disassembly of components such as the limiting shell, improving the efficiency of equipment maintenance and adjustment. The conveyor is connected to the right side of the support plate and is responsible for transporting the printed paper to the folding mechanism. The correction mechanism is located on the top of the conveyor to correct the position of the paper during transport, ensuring that the paper accurately enters the folding stage. The conveying mechanism is located on the inner wall of the support plate. Through the rotation of multiple conveyor rollers, driven by a motor, the paper is stably transported within the folding mechanism. The lifting mechanism is located at the bottom of the support plate, which can adjust the height of the support plate according to the actual working scenario requirements, enhancing the adaptability of the equipment to different working environments. Each component performs its own function and cooperates with each other, enabling the folding mechanism to efficiently and flexibly complete the folding task of paper of different sizes.

[0007] As a further description of the above technical solution: The quick-installation mechanism includes two insert plates. The front sides of the outer walls of the two insert plates are respectively fixedly connected to the rear sides of the outer walls of the corresponding insert plates. Two slots are opened on the left side of the front end of the outer wall of the support plate. The outer walls of the two insert plates are slidably connected to the corresponding slots. A sliding groove is opened on the top of the support plate. A pull rod is connected to the inner wall of the sliding groove. A fixing frame is fixedly connected to the top of the support plate. A limit ring is fixedly connected to the middle of the outer wall of the fixing frame. A spring is fixedly connected to the top of the limit ring. The top of the spring is fixedly connected to the bottom of the outer wall of the fixing frame. Two locking blocks are fixedly connected to the front side of the outer wall of the pull rod. A locking groove is opened on the top of the outer wall of each of the two insert plates. The two locking blocks are respectively engaged with the corresponding locking grooves.

[0008] Through the above technical solution: the two slots on the left side of the front end of the outer wall of the insert plate and the support plate are slidably connected, providing precise positioning and initial connection for the limiting shell, so that the limiting shell can be easily aligned with the installation position and inserted. The two locking blocks fixed on the front side of the outer wall of the pull rod cooperate with the slot opened on the top of the outer wall of the insert plate. When installing the limiting shell, pull the pull rod upward, which drives the limiting ring to move upward and compress the spring. After inserting the insert plate, release the pull rod, and the spring rebounds to push the limiting ring and the pull rod downward, so that the locking blocks are accurately locked into the slot, providing reliable fixing force for the limiting shell, thereby quickly and firmly completing the installation of the limiting shell and improving the efficiency of equipment assembly and maintenance.

[0009] As a further description of the above technical solution: The guiding assembly includes a guiding plate, the bottom of which is slidably connected to the top of the guiding shell. A telescopic rod is fixedly connected to the right end of the guiding plate, and a fixing plate is fixedly connected to the right end of the telescopic rod. The rear end of the outer wall of the fixing plate is fixedly connected to the front side of the outer wall of the support plate.

[0010] Through the above technical solution: the components of the guide assembly work together to play a key guiding role in the paper folding process of the printing press. The bottom of the guide plate is slidably connected to the top of the guide shell, and the guide shell provides a sliding track for the guide plate, allowing the guide plate to move left and right and adjust its position according to the paper folding state. The telescopic rod connected to the right end of the guide plate is the power component for adjusting the position of the guide plate. Through the telescopic movement, the position of the guide plate on the guide shell is precisely controlled to adapt to the folding guidance requirements of different papers. The fixed plate fixed to the right end of the telescopic rod has its rear end connected to the front side of the outer wall of the support plate, which firmly fixes the telescopic rod on the support plate, ensuring the stability of the telescopic rod during operation, and thus ensuring the accuracy of the guide plate movement.

[0011] As a further description of the above technical solution: The correction mechanism includes two correction plates. The bottom of the outer walls of the two correction plates are slidably connected to the front and rear sides of the top of the conveyor, respectively. Two guide rods are fixedly connected to the front side of the outer wall of the support plate. The inner walls of the two correction plates are slidably connected to the front and rear sides of the outer walls of the two guide rods, respectively. A two-way lead screw is rotatably mounted on the top of the front side of the support plate. The outer wall of the two-way lead screw is threadedly connected to the inner walls of the two correction plates, respectively.

[0012] The above technical solution involves two correction plates whose outer walls are slidably connected to the front and rear sides of the top of the conveyor, allowing the correction plates to move on the top of the conveyor for correcting the paper being conveyed. Two guide rods fixed to the front of the outer wall of the support plate provide precise guidance for the correction plates. The inner wall of the correction plate is slidably connected to the outer wall of the guide rods, ensuring that the correction plates slide smoothly along the guide rods and guaranteeing the accuracy and stability of the correction action. The bidirectional lead screw 2, which rotates at the top of the front of the outer wall of the support plate, is the power source for driving the correction plates. The bidirectional lead screw 2 is threadedly connected to the two correction plates. When the bidirectional lead screw 2 rotates, it uses the thread transmission principle to drive the two correction plates to move towards or away from each other. In this way, the distance between the correction plates can be flexibly adjusted to adapt to the correction requirements of paper of different widths and to correct the position of the paper being conveyed on the conveyor.

[0013] As a further description of the above technical solution: The conveying mechanism includes multiple conveying rollers 1 and multiple conveying rollers 2. The rear ends of the outer walls of the multiple conveying rollers 1 and multiple conveying rollers 2 are rotatably connected to the middle of the inner wall of the support plate. The rear ends of the outer walls of the multiple conveying rollers 1 are fixedly connected to a drive wheel 1, and the rear ends of the outer walls of the multiple conveying rollers 2 are fixedly connected to a drive wheel 2. The outer walls of the multiple drive wheels 1 are provided with a drive belt 1, and the multiple drive wheels 1 are connected to each other through the drive belt 1. The outer walls of the multiple drive wheels 2 are provided with a drive belt 2, and the multiple drive wheels 2 are connected to each other through the drive belt 2. The rear ends of the outer walls of the bottom drive wheels 1 are fixedly connected to a gear 1, and the rear ends of the bottom drive wheels 2 are fixedly connected to a gear 2. The gear 1 and the gear 2 are meshed together. A motor is fixedly connected to the rear side of the outer wall of the support plate, and the output end of the motor passes through the support plate and is fixedly connected to the gear 2.

[0014] Through the above technical solution: conveyor roller 1 and conveyor roller 2 directly contact the paper and drive the paper to move by rotating, which are the key execution components for paper conveying. Drive wheel 1 and drive wheel 2 cooperate with the corresponding drive belt 1 and drive belt 2 respectively, ensuring that multiple conveyor rollers 1 and 2 can rotate synchronously, thereby stably conveying the paper. Gear 1 fixed at the rear end of bottom drive wheel 1 and gear 2 fixed at the rear end of bottom drive wheel 2 mesh with each other, which plays a role in coordinating the rotation direction and speed of conveyor rollers 1 and 2, ensuring the stability and accuracy of paper conveying during the process. When the motor is running, drive gear 2 rotates, which in turn drives drive gear 1 to rotate through gear meshing, and then drives multiple conveyor rollers 1 and 2 to rotate synchronously through drive belt 1 and drive belt 2, ultimately realizing the stable conveying of paper in the folding mechanism and providing continuous and stable conveying power for the paper folding operation.

[0015] As a further description of the above technical solution: The lifting mechanism includes multiple telescopic tubes, the outer walls of which are slidably connected to the bottom perimeter of the support plate. The bottom ends of the multiple telescopic tubes are fixedly connected to the same base plate. A hollow column is fixedly connected to the bottom of the support plate. A threaded column is slidably connected to the bottom of the inner wall of the hollow column. Limiting blocks 2 are fixedly connected to the top of the left and right sides of the outer wall of the threaded column. The outer walls of the two limiting blocks 2 are slidably connected to the inner wall of the hollow column. A rotating wheel is rotatably connected to the bottom of the hollow column. The inner wall of the rotating wheel is threadedly connected to the outer wall of the threaded column.

[0016] Through the above technical solution: the telescopic tube forms a support system between the support plate and the base plate, which not only provides stable support for the support plate, but also provides precise guidance for the up and down movement of the support plate through the sliding connection, which effectively ensures the stability of the support plate during the lifting process and ensures the stable and reliable operation of the mechanism. The limit block two can effectively prevent the threaded column from rotating in the hollow column, thereby limiting the threaded column to move only in a straight line up and down along the inner wall of the hollow column, laying the foundation for achieving precise height adjustment. When the operator rotates the wheel, according to the principle of thread transmission, the rotation of the wheel can be converted into the up and down movement of the threaded column in the hollow column. Since the threaded column and the support plate are connected through the telescopic tube, the up and down movement of the threaded column can further drive the support plate to achieve lifting and adjustment.

[0017] As a further description of the above technical solution: Limiting rods are fixedly connected to the front and rear sides of the left end of the outer wall of the two top plates. Reserved holes are opened on the front and rear sides of the left end of the outer wall of the two limiting shells. The outer walls of the multiple limiting rods are slidably connected to the corresponding reserved holes.

[0018] The above technical solution involves the limiting rod engaging with the pre-drilled hole on the limiting shell to restrict the movement direction of the top plate.

[0019] As a further description of the above technical solution: Guide blocks are fixedly connected to the left and right sides of the outer walls of the two insert plates, and limit grooves are opened on the left and right sides of the inner walls of the two slots. The outer walls of the multiple guide blocks are slidably connected to the corresponding limit grooves.

[0020] The above technical solution involves aligning the insert plate with the slot. Guide blocks are fixed on the left and right sides of the outer wall of the insert plate, and limit grooves are opened on the left and right sides of the inner wall of the slot. The guide blocks are slidably connected to the limit grooves. The guide blocks slide along the limit grooves, guiding the insert plate to be accurately inserted into the slot. At the same time, the movement direction of the insert plate is restricted to ensure stable installation and achieve rapid and accurate installation of components.

[0021] This utility model has the following beneficial effects: 1. In this utility model, the problems of the prior art are effectively improved by the cooperation of the adjustment mechanism and the conveying mechanism. During adjustment, the bidirectional lead screw is rotated to drive the limiting block to move in the slide groove, and the paper width is adjusted to match the spacing. The threaded rod is rotated to drive the top plate to slide and adjust the folding length. During conveying, the motor drives the gear to drive the conveying roller to rotate and convey the paper. The folding is completed by the limiting shell and other components, realizing the flexible folding of different sizes of paper according to the required length. This solves the problem that the prior art can only be adapted to fixed-size paper due to the lack of an adjustment mechanism, resulting in low practicality.

[0022] 2. In this utility model, when installing the limiting shell, the pull rod is pulled upward to compress the spring. After inserting the insert plate, the pull rod is released, and the spring rebounds to drive the locking block into the slot. This design greatly simplifies the installation process of the limiting shell, eliminates the need for complicated tools and operations, improves equipment assembly efficiency, facilitates quick installation or disassembly of the limiting shell in different scenarios, and enhances the flexibility and convenience of the device. Attached Figure Description

[0023] Figure 1 This is a perspective view of an adjustable folding mechanism for a printing press according to the present invention. Figure 2 This is a front view of an adjustable folding mechanism for a printing press according to the present invention. Figure 3 This is a schematic diagram of the adjustment mechanism of an adjustable folding mechanism for a printing press proposed in this utility model; Figure 4 This is a schematic diagram of the conveying mechanism of an adjustable folding mechanism for a printing press proposed in this utility model; Figure 5 This is a schematic diagram of a guide component for an adjustable folding mechanism for a printing press, as proposed in this utility model. Figure 6 This is a partial structural schematic diagram of an adjustable folding mechanism for a printing press proposed in this utility model; Figure 7 This is a schematic diagram of a threaded column for an adjustable folding mechanism for a printing press, as proposed in this utility model.

[0024] Legend: 1. Support plate; 2. Adjustment mechanism; 201. Limiting shell; 202. Slide groove; 203. Limiting block one; 204. Two-way lead screw one; 205. Threaded rod; 206. Top plate; 207. Guide shell; 208. Guide assembly; 2081. Guide plate; 2082. Telescopic rod; 2083. Fixing plate; 3. Quick-installation mechanism; 301. Insert plate; 302. Slot; 303. Slide groove; 304. Pull rod; 305. Fixing frame; 306. Limiting ring; 307. Spring; 308. Locking block; 309. Locking groove; 4. Conveyor; 5. Correction mechanism 501. Correcting plate; 502. Guide rod; 503. Two-way lead screw; 6. Conveying mechanism; 601. Conveying roller one; 602. Conveying roller two; 603. Transmission wheel one; 604. Transmission wheel two; 605. Transmission belt one; 606. Transmission belt two; 607. Gear one; 608. Gear two; 609. Motor; 7. Lifting mechanism; 701. Telescopic tube; 702. Base plate; 703. Hollow column; 704. Threaded column; 705. Limiting block two; 706. Rotating wheel; 8. Limiting rod; 9. Reserved hole; 10. Guide block; 11. Limiting groove. 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] Reference Figure 2 , Figure 3 and Figure 6This utility model provides an embodiment of an adjustable folding mechanism for a printing press, including a support plate 1, which serves as the basic support structure for the entire mechanism and provides a platform for the installation and fixing of other components. An adjustment mechanism 2 is provided on the front side of the outer wall of the support plate 1, used for flexible adjustment according to the size of the paper and the folding length to improve the practicality of the device. A quick-installation mechanism 3 is provided on the rear side of the outer wall of the adjustment mechanism 2, enabling quick installation and disassembly of related components of the adjustment mechanism 2, facilitating equipment assembly and maintenance. A conveyor 4 is fixedly connected to the right side of the outer wall of the support plate 1, responsible for conveying the printed paper to the folding mechanism, providing initial conveying power for the paper folding process. A guide mechanism is provided on the top of the conveyor 4. Mechanism 5 corrects the position of the paper conveyed on conveyor 4 to ensure that the paper can accurately enter the subsequent folding stage. A conveying mechanism 6 is provided on the inner wall of support plate 1 to achieve stable paper delivery during folding and ensure the continuity of the folding operation. A lifting mechanism 7 is provided at the bottom of support plate 1 to adjust the height of support plate 1 according to the needs of the actual working scenario to adapt to different working environments. Adjustment mechanism 2 includes two limiting shells 201 and a guide shell 207. The limiting shells 201 and guide shells 207 together adjust the paper folding size and guide the paper folding direction. Sliding grooves 202 are provided on the front and rear sides of the bottom of the limiting shell 201 to provide a track for the sliding of the limiting block 203. 03. The limiting shell 201 has two slidingly connected limiting blocks 203 on its inner wall, one on the front and one on the back. The bottom ends of the two limiting blocks 203 are slidably connected to corresponding slide grooves 202. By sliding within the slide grooves 202, their spacing can be adjusted to accommodate the folding requirements of papers of different widths. A bidirectional lead screw 204 is rotatably connected to the bottom of the limiting shell 201. The inner walls of the two limiting blocks 203 are threadedly connected to the outer wall of the bidirectional lead screw 204. When the bidirectional lead screw 204 rotates, it can drive the threadedly connected limiting blocks 203 to move synchronously, achieving precise adjustment of the spacing between the limiting blocks 203. A threaded rod 205 is threadedly connected to the left side of the outer wall of the limiting shell 201. The right end of the limiting shell 201 is fixedly connected to the top plate 206. The threaded rod 205 is used to adjust the extension length of the top plate 206 to accommodate paper of different folding lengths. The top plate 206 slides inside the limiting shell 201 under the drive of the threaded rod 205, thereby controlling the folding length of the paper. The outer wall of the top plate 206 is slidably connected to the inner wall of the limiting shell 201. The rear end of the guide shell 207 is fixedly connected to the right side of the front middle of the outer wall of the support plate 1, providing guidance for the direction of the paper during the folding process, so that it completes the folding according to the predetermined path. The top of the guide shell 207 is provided with a guiding component 208, which further guides and pushes the paper after the paper has been partially folded, ensuring that the paper completes the entire folding process smoothly.The guide assembly 208 includes a guide plate 2081, which directly contacts the paper and guides the paper's position by moving it to ensure accurate folding. The bottom of the guide plate 2081 is slidably connected to the top of the guide shell 207, and the top of the guide shell 207 provides sliding support for the guide plate 2081 to ensure stable movement. A telescopic rod 2082 is fixedly connected to the right end of the guide plate 2081, which changes the position of the guide plate 2081 by extending and retracting to adapt to the paper's guiding needs in different folding states. A fixing plate 2083 is fixedly connected to the right end of the telescopic rod 2082, and the rear end of the outer wall of the fixing plate 2083 is fixedly connected to the front side of the outer wall of the support plate 1 for holding the telescopic rod 2082... Fixed to the support plate 1, providing stable support for the telescopic rod 2082; the conveying mechanism 6 includes multiple conveying rollers 601 and multiple conveying rollers 602, which cooperate to achieve smooth conveying of paper within the folding mechanism. The rear ends of the outer walls of the multiple conveying rollers 601 and multiple conveying rollers 602 are rotatably connected to the middle of the inner wall of the support plate 1. The rear ends of the outer walls of the multiple conveying rollers 601 are fixedly connected to a drive wheel 603, and the rear ends of the outer walls of the multiple conveying rollers 602 are fixedly connected to a drive wheel 604. The drive wheels 603 and 604 are used to transmit power, driving the conveying rollers 601 and 602 to rotate. The outer walls of the multiple drive wheels 603 are each provided with... A drive belt 605 is provided, and multiple drive pulleys 603 are connected by the drive belt 605, which connects the multiple drive pulleys 603 to realize the transmission of power between multiple conveyor rollers 601. A drive belt 606 is provided on the outer wall of each of the multiple drive pulleys 604, and the multiple drive pulleys 604 are connected by the drive belt 606, which connects the multiple drive pulleys 604 to realize the transmission of power between multiple conveyor rollers 602. A gear 607 is fixedly connected to the rear end of the outer wall of the bottom drive pulley 603, and a gear 608 is fixedly connected to the rear end of the bottom drive pulley 604. Gear 607 and gear 608 mesh with each other. The power transmission and rotation speed between conveyor roller 1 601 and conveyor roller 2 602 are coordinated. A motor 609 is fixedly connected to the rear side of the outer wall of the support plate 1. The output end of the motor 609 passes through the support plate 1 and is fixedly connected to gear 2 608. Gear 2 608 cooperates with gear 1 607. Under the drive of the motor 609, it drives conveyor roller 2 602 and conveyor roller 1 601 to rotate. Guide blocks 10 are fixedly connected to the left and right sides of the outer walls of the two insert plates 301. Limiting grooves 11 are opened on the left and right sides of the inner walls of the two slots 302. Multiple guide blocks 10 are slidably connected to the corresponding limiting grooves 11. The guide blocks 10 cooperate with the limiting grooves 11 to provide guidance for the insertion of the insert plates 301 and ensure the accuracy and stability of the insertion of the insert plates 301. Specifically, the support plate 1 serves as the basic support structure, providing an installation carrier for other components. The adjustment mechanism 2 is used to adjust the paper folding size. The limiting shell 201 is slidably connected to the limiting block 203 via a bottom groove 202. The bidirectional screw 204 rotates, causing the limiting block 203 to move, allowing adjustment of the spacing between the limiting blocks 203 to match the paper width. The threaded rod 205 drives the top plate 206 to slide, adjusting the folding length. The guide shell 207 is fixed to the front right side of the support plate 1, within the guide assembly 208 at its top. The guide plate 2081 slides on the top of the guide shell 207. The telescopic rod 2082 pushes the guide plate 2081, pushing it out after the paper is folded. The quick-installation mechanism 3 facilitates the installation of the limiting shell 201. The insert plate 301 is slidably connected to the slot 302. The pull rod 304 engages with the slot 309 on the insert plate 301 via a locking block 308 to fix the limiting shell 201. The housing 201, guide block 10 and limiting groove 11 cooperate to ensure stable insertion of insert plate 301. Conveyor 4 is responsible for conveying the printed paper to the folding mechanism. Correction mechanism 5 can correct the position of the paper during the conveying process to ensure that the paper enters the folding stage accurately. Conveying mechanism 6 realizes stable transmission of paper during the folding process. Motor 609 drives gear 2 608 to rotate, which drives gear 1 607 meshing with it to rotate. Then, through transmission belt 1 605 and transmission belt 2 606, multiple conveying rollers 1 601 and 2 602 are driven to rotate respectively. Conveying rollers 1 601 and 2 602 cooperate to convey paper. Lifting mechanism 7 can adjust the height of support plate 1 according to actual needs to adapt to different working scenarios. Each component performs its own function and cooperates with each other, so that the folding mechanism can flexibly and efficiently fold paper of different sizes.

[0027] Reference Figure 1 , Figure 2 and Figure 5The quick-installation mechanism 3 includes two insert plates 301. The front sides of the outer walls of the two insert plates 301 are fixedly connected to the rear sides of the outer walls of their respective insert plates 301. The two insert plates 301 provide connecting components for quick connection with other components. Two slots 302 are provided on the left side of the front end of the outer wall of the support plate 1 to provide insertion positions for the insert plates 301. The outer walls of the two insert plates 301 are slidably connected to the corresponding slots 302, facilitating quick insertion and removal of the insert plates 301 from the slots 302. A sliding groove 303 is provided on the top of the support plate 1 to provide a sliding track for the pull rod 304, allowing the pull rod 304 to move in a specific direction. The inner wall of the sliding groove 303 is connected to the pull rod 304 via a sliding rod. By sliding within the sliding groove 303, the insert plates 301 can be fixed and released. A fixing frame 305 is fixedly connected to the top of the support plate 1, serving as a support and positioning ring. 306 and spring 307 provide the mounting base. A limit ring 306 is fixedly connected to the middle of the outer wall of the fixed frame 305 to limit the position of spring 307 and keep it stable during operation. At the same time, it provides a certain limiting effect for the pull rod 304. The top of the limit ring 306 is fixedly connected to spring 307, which uses its own elastic force to provide upward or downward elastic force to pull rod 304, and assists in realizing the engagement and disengagement of the locking block 308 and the locking groove 309. The top of spring 307 is fixedly connected to the bottom of the outer wall of the fixed frame 305. Two locking blocks 308 are fixedly connected to the front side of the outer wall of pull rod 304. The top of the outer wall of the two insert plates 301 is provided with a locking groove 309. The outer walls of the two locking blocks 308 engage with the corresponding locking grooves 309. The locking blocks 308 cooperate with the locking grooves 309 on the insert plates 301 to fix the insert plates 301 and prevent the insert plates 301 from accidentally coming out of the slots 302. Specifically, two insert plates 301 are slidably connected to two slots 302 on the left side of the front end of the outer wall of the support plate 1. The insert plates 301 provide a connection base for the components to be installed, while the slots 302 guide the insert plates 301 to be accurately inserted. The cooperation of the two ensures precise installation and initial positioning. The sliding groove 303 on the top of the support plate 1 is slidably connected to the pull rod 304, providing a moving track for the pull rod 304 so that it can move in a specific direction. The fixing frame 305 is fixed to the top of the support plate 1, serving to support and position other components. The limiting ring 306 is fixed to the middle of the outer wall of the fixing frame 305 and connected to the spring 307. One end of the spring 307 is connected to the top of the limiting ring 306, and the other end is connected to the bottom of the outer wall of the fixing frame 305. The elastic force of the spring 307 provides assistance for the vertical movement of the pull rod 304. The two locking blocks 308 fixed on the front side of the outer wall of the pull rod 304 engage with the slots 309 opened on the top of the outer wall of the insert plate 301, which is the key connection point for achieving quick fixation. When installation is required, the pull rod 304 is pulled upward, and the pull rod 304 drives the limiting ring 306 to move upward and squeeze the spring 307. After inserting the insert plate 301 into the slot 302, the pull rod 304 is released. The spring 307 elastically returns to its original position and pushes the limiting ring 306 and the pull rod 304 downward, so that the locking blocks 308 are engaged in the slots 309, thereby firmly fixing the insert plate 301. This achieves quick installation and stable fixation of the component to be installed, improving installation efficiency and the overall stability of the device.

[0028] Reference Figure 1 and Figure 2 The correction mechanism 5 includes two correction plates 501. The correction plates 501 and guide rods 502 together form a structure for correcting the paper position. The bottom outer walls of the two correction plates 501 are slidably connected to the front and rear sides of the top of the conveyor 4, respectively, so that the correction plates 501 can slide in a specific direction on the top of the conveyor 4 to adjust the position of the paper during transport. Two guide rods 502 are fixedly connected to the front outer wall of the support plate 1 to guide the sliding of the correction plates 501 and ensure the accuracy and stability of the movement of the correction plates 501. The inner walls of the two correction plates 501 are slidably connected to the two guide rods 502. The outer wall of the support plate 1 has a front and rear side, which allows the correction plate 501 to slide smoothly along the guide rod 502 to achieve the correction operation of the paper at different positions. The top of the front side of the outer wall of the support plate 1 has a double-acting screw 503. The outer wall of the double-acting screw 503 is threadedly connected to the inner wall of the two correction plates 501 respectively. When the double-acting screw 503 rotates, it uses the screw transmission principle to drive the two correction plates 501 to move towards or away from each other, thereby adjusting the distance between the correction plates 501 to adapt to the correction requirements of paper of different widths, and to correct the position of the paper conveyed on the conveyor 4 to ensure that the paper accurately enters the subsequent folding stage. Specifically, when the correction mechanism 5 is working, rotating the double-acting lead screw 503 causes the correction plates 501 to slide back and forth along the guide rod 502 on the top of the conveyor 4. This adjusts the distance between the two correction plates 501 and corrects the position of the paper being conveyed on the conveyor 4, ensuring that the paper accurately enters the subsequent folding process.

[0029] Reference Figure 3 and Figure 7 The lifting mechanism 7 includes multiple telescopic tubes 701, which guide the movement of the support plate 1. The outer walls of the multiple telescopic tubes 701 are slidably connected to the bottom perimeter of the support plate 1, ensuring the stability of the support plate 1 during lifting and lowering. The bottom ends of the multiple telescopic tubes 701 are fixedly connected to the same base plate 702. A hollow column 703 is fixedly connected to the bottom of the support plate 1. A threaded column 704 is slidably connected to the bottom of the inner wall of the hollow column 703. The hollow column 703 provides space and guidance for the movement of the threaded column 704. Limiting blocks 705 are fixedly connected to the top of the left and right sides of the outer wall of the threaded column 704 to prevent the threaded column 704 from rotating inside the hollow column 703, ensuring that it can only move in a straight line up and down. The outer wall of 705 is slidably connected to the inner wall of the hollow column 703, ensuring that the second limiting block 705 can slide smoothly inside the hollow column 703, while restricting the movement trajectory of the threaded column 704. The bottom of the hollow column 703 is rotatably connected to a rotating wheel 706, which drives the threaded column 704 to move up and down by rotation, providing power input for the movement of the threaded column 704. The inner wall of the rotating wheel 706 is threadedly connected to the outer wall of the threaded column 704. Limiting rods 8 are fixedly connected to the front and rear sides of the left end of the outer wall of the two top plates 206. The front and rear sides of the left end of the outer wall of the two limiting shells 201 are provided with reserved holes 9. The outer walls of the multiple limiting rods 8 are slidably connected to the corresponding reserved holes 9. The limiting rods 8 cooperate with the reserved holes 9 on the limiting shells 201 to restrict the movement direction of the top plate 206. Specifically, the outer walls of multiple telescopic tubes 701 are slidably connected to the bottom perimeter of the support plate 1, and their bottom ends are fixed to the same base plate 702. This serves to support the support plate 1 and provide guidance for its vertical movement, ensuring the stability of the support plate 1 during lifting. Inside the hollow column 703 at the bottom of the support plate 1, a threaded column 704 is slidably connected to the bottom of its inner wall. Limiting blocks 705 fixed to the top left and right sides of the outer wall of the threaded column 704 are slidably connected to the inner wall of the hollow column 703. Limiting blocks 705 prevent the threaded column 704 from rotating within the hollow column 703, allowing it to move only vertically. A rotating wheel 706 is rotatably connected to the bottom of the hollow column 703, and its inner wall is threadedly connected to the outer wall of the threaded column 704. When the rotating wheel 706 rotates, it utilizes the threaded transmission... The principle of motion allows the threaded column 704 to move up and down within the hollow column 703, thereby achieving the lifting and lowering adjustment of the support plate 1 to adapt to different working height requirements. In addition, the limiting rod 8 fixed on the front and rear sides of the left end of the outer wall of the top plate 206 is slidably connected to the reserved holes 9 opened on the front and rear sides of the left end of the outer wall of the limiting shell 201. This structure restricts the movement direction of the top plate 206, making it slide only along the direction of the reserved holes 9 of the limiting shell 201, ensuring stability and accuracy when adjusting the extension length of the top plate 206, so that the adjusting mechanism 2 can more accurately control the folding length of the paper. These components cooperate with each other, so that the lifting mechanism 7 and the adjusting mechanism 2 work together, improving the overall performance and adaptability of the adjustable folding mechanism for printing presses.

[0030] Working principle: Before use, adjust the adjustment mechanism 2. Rotate the bidirectional lead screw 204, whose threaded structure drives the connected limit block 203 to move within the groove 202 at the bottom of the limit housing 201, thereby flexibly adjusting the distance between the limit blocks 203 to accommodate papers of different widths. Then, rotate the threaded rod 205, which drives the top plate 206 to slide within the limit housing 201, adjusting the extension length of the top plate 206 to adapt to the needs of papers with different folding lengths, greatly improving the device's throughput. After the paper is used, the conveyor 4 and motor 609 are started. The motor 609 runs, and its output end drives the gear 608 fixedly connected to it to rotate counterclockwise. The gear 607 meshing with the gear 608 rotates clockwise accordingly. The gear 607 and the gear 608 drive the multiple conveyor rollers 601 and 602 to rotate synchronously through the transmission belts 605 and 606 respectively. The paper to be printed is conveyed by the conveyor 4 and enters the conveyor mechanism 6, located between the top conveyor roller 601 and the top conveyor roller 602. As conveyor roller 1 (601) rotates clockwise and conveyor roller 2 (602) rotates counterclockwise, the paper, in conjunction with both, first enters the top limiting shell 201. At this point, the limiting block 1 (203) and top plate 206, which have been adjusted to their positions within the limiting shell 201, begin to function, precisely controlling the fold size of the paper. When the end of the paper passes the top threaded rod 205, the middle part of the paper bends downwards under the force of gravity and the rotation of the rollers. Then, under the combined action of the middle conveyor roller 1 (601) and conveyor roller 2 (602), the middle part of the paper enters the lower limiting shell 201. 01. Folding is further performed. When the end of the paper touches the threaded rod 205 in the middle, the paper is folded again and enters the guide shell 207. When the end of the paper is completely in the guide shell 207, the telescopic rod 2082 is activated, pushing the guide plate 2081 to move to the left. The left end of the guide plate 2081 presses against the middle of the paper, so that the paper is separated from the bottom limiting shell 201. Finally, with the cooperation of the bottom conveyor roller 1 601 and the conveyor roller 2 602, the folded paper leaves the device, realizing the flexible folding of different sizes of paper to the required length. Furthermore, when installing the limiting shell 201, the operator first applies an upward pulling force to the pull rod 304. Since the pull rod 304 is fixedly connected to the limiting ring 306, and the limiting ring 306 is connected to the fixed frame 305 through the spring 307, when the pull rod 304 moves upward, it will drive the limiting ring 306 to move upward together. During this process, the spring 307 is compressed upward by the limiting ring 306, undergoes elastic deformation, and stores elastic potential energy. Subsequently, the operator aligns the insert plate 301 on the rear side of the limiting shell 201 with the slot 302 opened on the left side of the front end of the outer wall of the support plate 1, and inserts the insert plate 301 into the slot 302. After positioning, the operator releases the lever 304. At this time, the previously compressed spring 307 begins to release its elastic potential energy. With its own elastic force, the spring 307 pushes the limiting ring 306 downward. Since the limiting ring 306 is fixed to the lever 304, the lever 304 also moves downward. The locking block 308, which is fixedly connected to the front side of the outer wall of the lever 304, will also move downward with the lever 304. During the downward movement, the locking block 308 engages with the corresponding slot 309. The locking block 308 and the slot 309 are tightly engaged, providing a reliable fixing force for the limiting shell 201, thereby achieving rapid fixing of the limiting shell 201.

[0031] 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. An adjustable folding mechanism for a printing press, comprising a support plate (1), characterized in that: An adjustment mechanism (2) is provided on the front side of the outer wall of the support plate (1), a quick-installation mechanism (3) is provided on the rear side of the outer wall of the adjustment mechanism (2), a conveyor (4) is fixedly connected to the right side of the outer wall of the support plate (1), a correction mechanism (5) is provided on the top of the conveyor (4), a conveying mechanism (6) is provided on the inner wall of the support plate (1), and a lifting mechanism (7) is provided at the bottom of the support plate (1). The adjusting mechanism (2) includes two limiting shells (201) and a guide shell (207). The bottom front and rear sides of the limiting shell (201) are provided with sliding grooves (202). The inner walls of the limiting shell (201) are slidably connected to the front and rear sides of the limiting shell (201). The bottom ends of the two limiting blocks (203) are slidably connected to the corresponding sliding grooves (202). The bottom of the limiting shell (201) is rotatably connected to a bidirectional lead screw (204). The inner walls of the two limiting blocks (203) are rotatably connected to the bidirectional lead screw (204). The screw is threaded to the outer wall of the lead screw (204). The left side of the outer wall of the limiting shell (201) is threaded to a threaded rod (205). The right end of the threaded rod (205) passes through the limiting shell (201) and is fixedly connected to a top plate (206). The outer wall of the top plate (206) is slidably connected to the inner wall of the limiting shell (201). The rear end of the guide shell (207) is fixedly connected to the right side of the front end of the outer wall of the support plate (1). A guide component (208) is provided on the top of the guide shell (207).

2. The adjustable folding mechanism for a printing press according to claim 1, characterized in that: The quick-installation mechanism (3) includes two insert plates (301). The front sides of the outer walls of the two insert plates (301) are respectively fixedly connected to the rear sides of the outer walls of the corresponding insert plates (301). Two slots (302) are opened on the left side of the front end of the outer wall of the support plate (1). The outer walls of the two insert plates (301) are slidably connected to the corresponding slots (302). A sliding groove (303) is opened on the top of the support plate (1). A pull rod (304) is connected to the sliding rod of the inner wall of the sliding groove (303). The top of the support plate (1) is fixed. A fixed frame (305) is connected, and a limiting ring (306) is fixedly connected to the middle of the outer wall of the fixed frame (305). A spring (307) is fixedly connected to the top of the limiting ring (306). The top of the spring (307) is fixedly connected to the bottom of the outer wall of the fixed frame (305). Two locking blocks (308) are fixedly connected to the front side of the outer wall of the pull rod (304). The top of the outer wall of the two insert plates (301) is provided with a slot (309). The two locking blocks (308) are respectively engaged with the corresponding slots (309).

3. The adjustable folding mechanism for a printing press according to claim 1, characterized in that: The guide assembly (208) includes a guide plate (2081), the bottom of which is slidably connected to the top of the guide shell (207). A telescopic rod (2082) is fixedly connected to the right end of the guide plate (2081), and a fixing plate (2083) is fixedly connected to the right end of the telescopic rod (2082). The rear end of the outer wall of the fixing plate (2083) is fixedly connected to the front side of the outer wall of the support plate (1).

4. The adjustable folding mechanism for a printing press according to claim 1, characterized in that: The correction mechanism (5) includes two correction plates (501). The bottom of the outer walls of the two correction plates (501) are slidably connected to the front and rear sides of the top of the conveyor (4). Two guide rods (502) are fixedly connected to the front side of the outer wall of the support plate (1). The inner walls of the two correction plates (501) are slidably connected to the front and rear sides of the outer walls of the two guide rods (502). A two-way screw rod (503) is rotatably mounted on the top of the front side of the outer wall of the support plate (1). The outer wall of the two-way screw rod (503) is threadedly connected to the inner walls of the two correction plates (501).

5. The adjustable folding mechanism for a printing press according to claim 1, characterized in that: The conveying mechanism (6) includes multiple conveying rollers (601) and multiple conveying rollers (602). The rear ends of the outer walls of the multiple conveying rollers (601) and multiple conveying rollers (602) are rotatably connected to the middle of the inner wall of the support plate (1). The rear ends of the outer walls of the multiple conveying rollers (601) are fixedly connected to a drive wheel (603). The rear ends of the outer walls of the multiple conveying rollers (602) are fixedly connected to a drive wheel (604). The outer walls of the multiple drive wheels (603) are provided with a drive belt (605). The multiple drive wheels (603) are connected to each other through the drive belt (605). Each of the multiple transmission wheels (604) has a transmission belt (606) on its outer wall. The multiple transmission wheels (604) are connected to each other through the transmission belt (606). The rear end of the outer wall of the bottom transmission wheel (603) is fixedly connected to a gear (607). The rear end of the bottom transmission wheel (604) is fixedly connected to a gear (608). The gear (607) and the gear (608) are meshed. The rear side of the outer wall of the support plate (1) is fixedly connected to a motor (609). The output end of the motor (609) passes through the support plate (1) and is fixedly connected to the gear (608).

6. The adjustable folding mechanism for a printing press according to claim 1, characterized in that: The lifting mechanism (7) includes multiple telescopic tubes (701). The outer walls of the multiple telescopic tubes (701) are slidably connected to the bottom periphery of the support plate (1). The bottom ends of the multiple telescopic tubes (701) are fixedly connected to the same base plate (702). The bottom of the support plate (1) is fixedly connected to a hollow column (703). The bottom of the inner wall of the hollow column (703) is slidably connected to a threaded column (704). The top of the left and right sides of the outer wall of the threaded column (704) is fixedly connected to a limit block two (705). The outer walls of the two limit blocks two (705) are slidably connected to the inner wall of the hollow column (703). The bottom of the hollow column (703) is rotatably connected to a wheel (706). The inner wall of the wheel (706) is threadedly connected to the outer wall of the threaded column (704).

7. The adjustable folding mechanism for a printing press according to claim 1, characterized in that: Limiting rods (8) are fixedly connected to the front and rear sides of the left end of the outer wall of the two top plates (206), and reserved holes (9) are opened on the front and rear sides of the left end of the outer wall of the two limiting shells (201). The outer walls of the multiple limiting rods (8) are slidably connected to the corresponding reserved holes (9).

8. The adjustable folding mechanism for a printing press according to claim 2, characterized in that: Guide blocks (10) are fixedly connected to the left and right sides of the outer walls of the two insert plates (301), and limit grooves (11) are opened on the left and right sides of the inner walls of the two slots (302). The outer walls of the multiple guide blocks (10) are slidably connected to the corresponding limit grooves (11).

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