A multi-layer booklet folding positioning tool

Abstract

The utility model relates to folding technical field, and disclose a kind of multi-layer booklet folding positioning tool, including paper feed slot, paper feed slot is inclined to set, the low end of paper feed slot is provided with first roller and second roller, first roller and second roller mutually adhere to set, first roller and second roller sleeve interface have shell, the pivot of first roller and the pivot of second roller are through shell, the pivot of first roller is fixedly installed with driving gear outside shell, the pivot of second roller is fixedly installed with driven gear outside shell, driving gear and driven gear mutually engage;First motor is provided on the side surface of driving gear, the output shaft of first motor is fixedly connected with the pivot of first roller, first motor top fixedly installed with support frame, the other end of support frame is fixedly connected with shell.The utility model solves the problem that traditional structure cannot adapt to different specifications paper and different folding needs.

Description

Technical Field

[0001] This utility model relates to the field of folding equipment technology, specifically a multi-layer booklet folding and positioning fixture. Background Technology

[0002] Multi-layered booklets typically refer to printed materials composed of multiple single-page sheets or multiple folded pages, bound together. They are commonly found in product manuals, brochures, and company reports. Their core characteristic lies in distributing a large amount of information across multiple pages and then precisely folding them one or more times to create a neat, portable, and easy-to-read product. Accurate folding of multiple layers of paper is a crucial step in the manufacturing process.

[0003] However, existing booklet folding equipment generally uses a simple flat paper feed trough combined with a basic pressure plate folding mechanism. This traditional paper feed trough lacks an adaptive adjustment mechanism and cannot effectively adapt to paper stacks of different widths, which can easily cause deviations during the feeding process and affect the initial positioning accuracy. Its folding part is mostly a rigid structure, with the number of folds and the position fixed and cannot be flexibly adjusted according to the production process requirements. This structural limitation means that when producing booklets of different specifications, it is often necessary to replace the entire machine or carry out complex mechanical modifications, which not only increases production costs but also seriously affects production efficiency and equipment utilization. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-layer booklet folding and positioning fixture to solve the problem of not being able to adapt to different paper sizes and different folding requirements.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a multi-layer booklet folding and positioning fixture, comprising a paper feed slot, which is inclined. A first roller and a second roller are located at the lower end of the paper feed slot, and the first roller and the second roller are fitted together. A housing is fitted around the first roller and the second roller, with the shafts of the first roller and the second roller passing through the housing. A drive gear is fixedly mounted on the shaft of the first roller outside the housing, and a driven gear is fixedly mounted on the shaft of the second roller outside the housing. The drive gear and the driven gear mesh with each other. A first motor is located on the side of the drive gear, and the output shaft of the first motor is fixedly connected to the shaft of the first roller. A support frame is fixedly mounted on the top of the first motor, and the other end of the support frame is fixedly connected to the housing. A vertically arranged [device / structure] is located inside the housing above the first roller and the second roller. A top plate is provided, with a guide block fixedly installed on its top. Vertical guide rail grooves are formed on both sides of the guide block and are fitted into the inner wall of the outer shell. A hinge block is fixedly installed on the top of the guide block, with one end of a transmission rod hinged to the hinge block. The other end of the transmission rod is hinged to a rotating wheel, and the hinge point is located at the eccentric position of the rotating wheel. A main shaft is fixedly installed on one side of the rotating wheel and passes through the outer shell. A second motor is installed on the outer surface of the outer shell, and the output shaft of the second motor passes through the outer shell and is fixedly connected to the main shaft. An inclined conveying plate is provided below the first roller and the second roller. The top plate, the first roller, the second roller, and their components together constitute a first folding mechanism. A second folding mechanism with the same structure as the first folding mechanism is arranged in a stepped manner downstream of the first folding mechanism.

[0006] Furthermore, the paper feed slot has a V-shaped opening, and support plates are installed on the top of both sides of the paper feed slot. A spring is installed on the side of the support plate near the center of the slot opening. One end of the spring is fixedly connected to the support plate, and a push plate is fixedly installed on the other end. The push plate is arranged parallel to the support plate. A limit rod is installed on the side of the push plate near the support plate. The limit rod passes through the support plate and extends outward, and a limit block is installed at the end of the limit rod.

[0007] Furthermore, a stop block is fixedly installed above the lower end of the paper feed slot, the stop block is fixedly connected to the outer casing, and a pull ring is fixedly installed on the top of the outer casing.

[0008] Furthermore, the bottom of the outer shells of the first and second folding mechanisms are jointly mounted with a bottom shell, and the paper feed slot is fixedly mounted on the top of the bottom shell.

[0009] Furthermore, a finished product groove is installed on one side of the bottom shell, and one end of a first support rod is fixedly installed on the side of the finished product groove. The other end of the first support rod is fixedly connected to the outer shell of the second folding mechanism. One end of a second support rod is fixedly installed on the other side of the bottom shell, and the other end of the second support rod is fixedly connected to the bottom of the paper feed groove.

[0010] Furthermore, four sets of casters are fixedly installed around the bottom of the base shell.

[0011] This utility model has the following beneficial effects: (1) In this utility model, the multi-layered paper to be folded is placed into an inclined paper feed slot and slides down to the lower end by its own weight. At this time, the first motor starts and drives the shaft of the first roller to rotate. Through the meshing transmission of the driving gear and the driven gear, the power is transmitted to the second roller, so that the two rollers rotate synchronously in opposite directions. The first roller and the second roller, which are in close contact with each other, generate friction, clamp and pull the paper. At the same time as feeding the paper, the second motor starts and drives the main shaft and the rotating wheel fixed on it to rotate at a constant speed. Since one end of the transmission rod is hinged to the eccentric position of the rotating wheel, the rotational motion of the rotating wheel is converted into the reciprocating planar motion of the other end of the transmission rod. The transmission rod pushes the hinge block that is hinged to it, and then drives the guide block to move along its vertical guide rail groove. The inner wall of the outer casing moves vertically up and down, and the guide block drives the top plate at its bottom to move vertically in sync. When the top plate moves down, it presses the paper on the rollers and completes a precise folding action with the cooperation of the two roller support points. Then the top plate lifts up to make room for the next folding or paper conveying. The folded paper is continued to be conveyed by the rollers and falls onto the inclined conveyor plate below. The paper slides down the inclined conveyor plate by gravity and is precisely guided to the second set of folding mechanisms downstream for the next folding at a different position. The paper conveying and folding functions are integrated into a compact outer casing, realizing a modular design. The modular design allows the tooling to be easily expanded to adapt to different folding needs.

[0012] (2) In this utility model, when no paper is inserted, the springs on both sides are in a natural or pre-compressed state, pushing the push plate towards the V-shaped center line of the paper feed slot. This movement is guided by a limiting rod, which slides in the hole of the support plate until the limiting block contacts the support plate, thereby preventing the push plate from disengaging further. At this time, the push plates on both sides form the narrowest entrance in the V-shaped slot. When the operator inserts a stack of paper into the V-shaped paper feed slot, the width of the paper will inevitably be greater than the initial distance between the push plates on both sides. The lower edge of the paper will simultaneously contact and squeeze the push plates on both sides. Under the squeezing action of the paper, the push plates on both sides are forced to move away from the center. The limiting rod slides within the support plate, simultaneously compressing the spring. This compression generates a counterforce, which is continuously and flexibly applied to both sides of the paper via the push plate. Eventually, when the pressure exerted on the paper balances the spring's reaction force, the push plate stops moving. At this point, the push plates on both sides, under the pressure of the spring, stably clamp the paper in the center of the paper feed slot, completing automatic positioning. Through the extension and contraction of the spring and the movement of the push plate, this structure automatically adapts to paper of different widths, accommodating various sizes of booklets within a width range without requiring readjustment or tooling changes for each size, greatly improving the equipment's versatility and production changeover efficiency.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the folding structure of this utility model; Figure 3 This is a schematic diagram of the paper feed slot structure of this utility model; Figure 4 This is a cross-sectional schematic diagram of the folding structure of this utility model; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Paper feed tray; 2. First roller; 3. Second roller; 4. Outer casing; 5. Drive gear; 6. Driven gear; 7. First motor; 8. Support frame; 9. Top plate; 10. Guide block; 11. Hinge block; 12. Transmission rod; 13. Rotary wheel; 14. Main shaft; 15. Second motor; 16. Inclined conveyor plate; 17. Support plate; 18. Spring; 19. Push plate; 20. Limiting rod; 21. Limiting block; 22. Stop block; 23. Pull ring; 24. Bottom shell; 25. Finished product tray; 26. First support rod; 27. Second support rod; 28. Caster wheel. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1 - Figure 4 As shown, this utility model is a multi-layer booklet folding and positioning fixture, including a paper feed slot 1, which is inclined. A first roller 2 and a second roller 3 are arranged at the lower end of the paper feed slot 1, and the first roller 2 and the second roller 3 are fitted together. A housing 4 is fitted around the first roller 2 and the second roller 3. The shafts of the first roller 2 and the second roller 3 pass through the housing 4. A drive gear 5 is fixedly installed on the shaft of the first roller 2 outside the housing 4, and a driven gear 6 is fixedly installed on the shaft of the second roller 3 outside the housing 4. The drive gear 5 and the driven gear 6 mesh with each other. A first motor 7 is arranged on the side of the drive gear 5, and the output shaft of the first motor 7 is fixedly connected to the shaft of the first roller 2. A support frame 8 is fixedly installed on the top of the first motor 7, and the other end of the support frame 8 is fixedly connected to the housing 4. A top plate is vertically arranged inside the housing 4 above the first roller 2 and the second roller 3. 9. A guide block 10 is fixedly installed on the top of the top plate 9. Vertical guide rail grooves are opened on both sides of the guide block 10. The vertical guide rail grooves are fitted and connected to the inner wall of the outer shell 4. A hinge block 11 is fixedly installed on the top of the guide block 10. One end of the transmission rod 12 is hinged to the hinge block 11. The other end of the transmission rod 12 is hinged to the rotating wheel 13. The hinge point is located at the eccentric position of the rotating wheel 13. A main shaft 14 is fixedly installed on one side of the rotating wheel 13. The main shaft 14 passes through the outer shell 4. A second motor 15 is installed on the outer surface of the outer shell 4. The output shaft of the second motor 15 passes through the outer shell 4 and is fixedly connected to the main shaft 14. An inclined conveying plate 16 is provided below the first roller 2 and the second roller 3. The top plate 9, the first roller 2 and the second roller 3 and their components together constitute the first folding mechanism. The second folding mechanism with the same structure as the first folding mechanism is set in a stepped manner downstream of the first folding mechanism.

[0018] In this process, multi-layered paper to be folded is placed into an inclined paper feed slot 1 and slides down to the lower end under its own weight. At this time, the first motor 7 starts, driving the shaft of the first roller 2 to rotate. Through the meshing of the driving gear 5 and the driven gear 6, the power is transmitted to the second roller 3, causing the two rollers to rotate synchronously in opposite directions. The friction between the first roller 2 and the second roller 3, which are in close contact with each other, clamps and pulls the paper. At the same time as the paper is fed, the second motor 15 starts, driving the main shaft 14 and the rotating wheel 13 fixed on it to rotate at a constant speed. Since one end of the transmission rod 12 is hinged to the eccentric position of the rotating wheel 13, the rotational motion of the rotating wheel 13 is converted into the reciprocating planar motion of the other end of the transmission rod 12. The transmission rod 12 pushes the hinge block 11 that is hinged to it, thereby driving the guide block 10 along its vertical direction. The guide rail groove moves vertically up and down on the inner wall of the housing 4. The guide block 10 drives the top plate 9 at its bottom to move vertically in sync. When the top plate 9 moves down, it presses the paper on the roller and completes a precise folding action with the cooperation of the two roller support points. Then the top plate 9 is raised to make room for the next folding or paper conveying. The folded paper is continued to be conveyed by the roller and falls onto the inclined conveyor plate 16 below. The paper slides down the inclined conveyor plate 16 by gravity and is precisely guided to the second set of folding mechanisms downstream for the next folding at a different position. The paper conveying and folding functions are integrated into a compact housing 4 to achieve a modular design. The modular design allows the tooling to be easily expanded to adapt to different folding needs.

[0019] The paper feed slot 1 has a V-shaped opening. Support plates 17 are installed on the top of both sides of the paper feed slot 1. A spring 18 is installed on the side of the support plate 17 near the center of the slot opening. One end of the spring 18 is fixedly connected to the support plate 17, and a push plate 19 is fixedly installed on the other end. The push plate 19 is parallel to the support plate 17. A limit rod 20 is installed on the side of the push plate 19 near the support plate 17. The limit rod 20 passes through the support plate 17 and extends outward. A limit block 21 is installed at the end of the limit rod 20.

[0020] When no paper is inserted, the springs 18 on both sides are in a natural or pre-compressed state, pushing the push plate 19 towards the V-shaped center line of the paper feed slot 1. This movement is guided by the limiting rod 20, which slides in the hole of the support plate 17 until the limiting block 21 contacts the support plate 17, thereby preventing the push plate 19 from disengaging further. At this time, the push plates 19 on both sides form the narrowest entrance in the V-shaped slot. When the operator inserts a stack of paper into the V-shaped paper feed slot 1, the width of the paper will inevitably be greater than the initial distance between the push plates 19 on both sides. The lower edge of the paper will simultaneously contact and squeeze the push plates 19 on both sides. Under the squeezing action of the paper, the push plates 19 on both sides are forced to move away from the center. The limiting rod 20 slides in the support plate 17, while compressing the spring 18. The compressed spring generates a counterforce, which is continuously and flexibly applied to both sides of the paper through the push plate 19. Finally, when the pressure exerted on the paper and the counterforce of the spring 18 reach equilibrium, the push plate 19 stops moving. At this time, the push plates 19 on both sides, under the pressure of the spring 18, stably clamp the paper in the center of the paper feed slot 1, completing the automatic positioning. Through the extension and retraction of the spring 18 and the movement of the push plate 19, this structure automatically adapts to paper of different widths and can accommodate various sizes of booklets within a width range. There is no need to readjust or change tooling for each size, which greatly improves the versatility and production changeover efficiency of the equipment.

[0021] A stop block 22 is fixedly installed above the lower end of the paper feed tray 1. The stop block 22 is fixedly connected to the outer casing 4. A pull ring 23 is fixedly installed on the top of the outer casing 4.

[0022] Among them, the stop block 22 is a fixed part. It is firmly installed on the outer shell 4 and precisely suspended above the lower end of the paper feed tray 1. When the paper slides down the inclined paper feed tray 1 by gravity, the leading edge of the excess paper will collide with the stop block 22, thereby restricting the excess paper from entering the folding station. During equipment maintenance, relocation or installation, the operator holds the pull ring 23 to pull it to move the entire folding module. The design of the pull ring 23 makes the modular design more comprehensive, and makes the movement process safer and more convenient, reflecting humanized design.

[0023] The bottom of the outer shell 4 of the first folding mechanism and the second folding mechanism is jointly installed with a bottom shell 24, and the paper feed slot 1 is fixedly installed on the top of the bottom shell 24.

[0024] The bottom shell 24 serves as the base and mounting platform for the entire fixture. The paper feed slot 1 is fixedly installed and remains relatively stationary with respect to the bottom shell 24. This structure constitutes a complete functional module. During installation, debugging, or relocation, operators no longer need to adjust the complex positional relationships between the paper feed slot 1, the first folding mechanism, and the second folding mechanism individually. They only need to position the bottom shell 24 as a whole, which greatly simplifies the operation and saves time.

[0025] A finished product slot 25 is installed on one side of the bottom shell 24. One end of a first support rod 26 is fixedly installed on the side of the finished product slot 25. The other end of the first support rod 26 is fixedly connected to the outer shell 4 of the second folding mechanism. One end of a second support rod 27 is fixedly installed on the other side of the bottom shell 24. The other end of the second support rod 27 is fixedly connected to the bottom of the paper feed slot 1.

[0026] After the booklet has gone through all the folding processes, it is sent out from the second folding mechanism, falls under the action of gravity and slides down its slope into the finished product slot 25, where it is collected in an orderly manner. The first support rod 26 fixes the finished product slot 25 at the end to the outer shell 4 of the core second folding mechanism, and together with the bottom shell 24, it forms a more stable spatial frame structure. The second support rod 27 reinforces the paper feed slot 1, strengthens the load-bearing capacity of the paper feed slot 1, and prevents the paper feed slot 1 from being damaged when used for a long time or when bearing heavy paper.

[0027] Four sets of casters 28 are fixedly installed around the bottom of the base shell 24.

[0028] The configuration of four sets of casters 28 allows the entire structure to adjust the position of the tooling at any time according to changes in the production line, space optimization, or maintenance needs, thus improving the flexibility of the production layout.

[0029] In use, the device is placed in the location where it will be used. The operator places multiple layers of paper into the V-shaped paper feed slot 1. The paper then presses against the push plates 19 on both sides, which are pushed by springs 18. The push plates 19 move outward under the guidance of the limiting rods 20 that pass through the support plate 17 until the pressure of the springs 18 and the pressure of the paper are balanced, thus automatically centering and clamping the paper. The paper then slides down the inclined plane, and its front end is precisely blocked and positioned by the stop block 22 fixed on the outer shell 4. At this time, the first motor 7 starts, driving the first roller 2 to rotate. Through the meshing drive gear 5 and driven gear 6, the second roller 3 is driven to rotate synchronously in the opposite direction, clamping and sending the paper into the folding station. At the same time, the second motor 15 drives the main shaft 1. 4. The rotating wheel 13 rotates, and the eccentric motion of the rotating wheel 13 is converted into the vertical motion of the guide block 10 through the transmission rod 12 and the hinge block 11. This motion drives the top plate 9, which is fixed at its bottom, to press down. After being precisely folded and reset under the support of the two rollers, the folded paper is fed to the inclined conveyor plate 16 and slides into the same second set of folding mechanisms downstream for folding again. Finally, the finished product slides into the finished product slot 25, which is reinforced by the first support rod 26, for collection. The entire system module is integrated on the bottom shell 24 and is supported obliquely by the second support rod 27 to enhance stability of the paper feed slot 1. When it needs to be moved, it is pulled by the pull ring 23 to drive the four sets of universal wheels 28 at the bottom of the bottom shell 24 to rotate, so as to realize the flexible movement of the tooling.

[0030] Among them, the stop block 22 is a fixed part. It is firmly installed on the outer casing 4 and precisely suspended above the lower end of the paper feed tray 1. When the paper slides down the inclined paper feed tray 1 by gravity, the leading edge of the excess paper will collide with the stop block 22, thereby restricting the excess paper from entering the folding station. During equipment maintenance, relocation or installation, the operator holds the pull ring 23 to pull it to move the entire folding module. The design of the pull ring 23 makes the modular design more comprehensive, and makes the movement process safer and more convenient, reflecting the humanized design.

[0031] The bottom of the outer shell 4 of the first folding mechanism and the second folding mechanism are both equipped with a bottom shell 24, and the paper feed slot 1 is fixedly installed on the top of the bottom shell 24.

[0032] The bottom shell 24 serves as the base and mounting platform for the entire fixture. The paper feed slot 1 is fixedly installed and remains relatively stationary with respect to the bottom shell 24. This structure constitutes a complete functional module. During installation, debugging, or relocation, operators no longer need to adjust the complex positional relationships between the paper feed slot 1, the first folding mechanism, and the second folding mechanism individually. They only need to position the bottom shell 24 as a whole, which greatly simplifies the operation and saves time.

[0033] A finished product slot 25 is installed on one side of the bottom shell 24. One end of a first support rod 26 is fixedly installed on the side of the finished product slot 25. The other end of the first support rod 26 is fixedly connected to the outer shell 4 of the second folding mechanism. One end of a second support rod 27 is fixedly installed on the other side of the bottom shell 24. The other end of the second support rod 27 is fixedly connected to the bottom of the paper feed slot 1.

[0034] After the booklet has gone through all the folding processes, it is sent out from the second folding mechanism, falls under the action of gravity and slides down its slope into the finished product slot 25, where it is collected in an orderly manner. The first support rod 26 fixes the finished product slot 25 at the end to the outer shell 4 of the core second folding mechanism, and together with the bottom shell 24, it forms a more stable spatial frame structure. The second support rod 27 reinforces the paper feed slot 1, strengthens the load-bearing capacity of the paper feed slot 1, and prevents the paper feed slot 1 from being damaged when used for a long time or when bearing heavy paper.

[0035] Four sets of casters 28 are fixedly installed around the bottom of the base shell 24.

[0036] The configuration of four sets of casters 28 allows the entire structure to adjust the position of the tooling at any time according to changes in the production line, space optimization, or maintenance needs, thus improving the flexibility of the production layout.

[0037] In use, the device is placed in the location where it will be used. The operator puts multiple layers of paper into the V-shaped paper feed slot 1. The paper then squeezes the push plates 19 on both sides, which are pushed by springs 18. The push plates 19 move outward under the guidance of the limiting rods 20 that pass through the support plate 17 until the pressure of the springs 18 and the pressure of the paper are balanced, thus automatically centering and clamping the paper. The paper then slides down the inclined plane, and its front end is precisely blocked and positioned by the stop block 22 fixed on the outer shell 4. At this time, the first motor 7 starts, driving the first roller 2 to rotate. Through the meshing drive gear 5 and driven gear 6, the second roller 3 is driven to rotate synchronously in the opposite direction, clamping and sending the paper into the folding station. At the same time, the second motor 15 drives the main shaft. 14 and the rotating wheel 13 rotate. The eccentric motion of the rotating wheel 13 is converted into the vertical motion of the guide block 10 through the transmission rod 12 and the hinge block 11, which drives the top plate 9 fixed at its bottom to press down. After the top plate 9 is accurately folded and reset under the support of the two rollers, the folded paper is fed to the inclined conveyor plate 16 and slides into the same second set of folding mechanisms downstream for folding again. Finally, the finished product slides into the finished product slot 25 reinforced by the first support rod 26 for collection. The entire system module is integrated on the bottom shell 24 and is supported by the second support rod 27 at an angle to enhance stability of the paper feed slot 1. When it needs to be moved, the bottom shell 24 is pushed, which drives the four sets of universal wheels 28 at the bottom of the bottom shell 24 to rotate, so as to realize the flexible movement of the tooling.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-layer booklet folding and positioning fixture, characterized in that: Includes a paper feed slot (1), which is inclined. A first roller (2) and a second roller (3) are provided at the lower end of the paper feed slot (1). The first roller (2) and the second roller (3) are fitted together. The first roller (2) and the second roller (3) are fitted with a housing (4). The shaft of the first roller (2) and the shaft of the second roller (3) pass through the housing (4). The first roller (2) has a drive gear (5) fixedly mounted on its shaft outside the housing (4), and the second roller (3) has a driven gear (6) fixedly mounted on its shaft outside the housing (4). The drive gear (5) and the driven gear (6) mesh with each other. A first motor (7) is provided on the side of the drive gear (5), and the output shaft of the first motor (7) is fixedly connected to the shaft of the first roller (2). A support frame (8) is fixedly installed on the top of the first motor (7). The other end of the support frame (8) is fixedly connected to the outer shell (4). A top plate (9) is vertically installed inside the outer shell (4) above the first roller (2) and the second roller (3). A guide block (10) is fixedly installed on the top of the top plate (9). Vertical guide rail grooves are opened on both sides of the guide block (10). The vertical guide rail grooves are fitted and connected to the inner wall of the outer shell (4). A hinge block (11) is fixedly installed on the top of the guide block (10). One end of the transmission rod (12) is hinged to the hinge block (11), and the other end of the transmission rod (12) is hinged to the rotating wheel (13). The hinge point is located at the eccentric position of the rotating wheel (13). A main shaft (14) is fixedly installed on one side of the rotating wheel (13). The main shaft (14) passes through the outer shell (4). A second motor (15) is installed on the outer surface of the outer shell (4). The output shaft of the second motor (15) passes through the outer shell (4) and is fixedly connected to the main shaft (14). An inclined conveying plate (16) is provided below the first roller (2) and the second roller (3). The top plate (9), the first roller (2), the second roller (3) and their components together constitute the first folding mechanism, and the second folding mechanism with the same structure as the first folding mechanism is set in a stepped manner downstream of the first folding mechanism.

2. The multi-layer booklet folding and positioning fixture according to claim 1, characterized in that: The paper feed slot (1) has a V-shaped opening. Support plates (17) are installed on the top of both sides of the paper feed slot (1). A spring (18) is installed on the side of the support plate (17) near the center of the slot opening. One end of the spring (18) is fixedly connected to the support plate (17), and a push plate (19) is fixedly installed on the other end. The push plate (19) is parallel to the support plate (17). A limit rod (20) is installed on the side of the push plate (19) near the support plate (17). The limit rod (20) passes through the support plate (17) and extends outward. A limit block (21) is installed at the end of the limit rod (20).

3. The multi-layer booklet folding and positioning fixture according to claim 1, characterized in that: A stop block (22) is fixedly installed above the lower end of the paper feed slot (1). The stop block (22) is fixedly connected to the outer shell (4). A pull ring (23) is fixedly installed on the top of the outer shell (4).

4. The multi-layer booklet folding and positioning fixture according to claim 1, characterized in that: The bottom of the outer shell (4) of the first folding mechanism and the second folding mechanism is jointly installed with a bottom shell (24), and the paper feed slot (1) is fixedly installed on the top of the bottom shell (24).

5. The multi-layer booklet folding and positioning fixture according to claim 4, characterized in that: A finished product groove (25) is installed on one side of the bottom shell (24). One end of a first support rod (26) is fixedly installed on the side of the finished product groove (25). The other end of the first support rod (26) is fixedly connected to the outer shell (4) of the second folding mechanism. One end of a second support rod (27) is fixedly installed on the other side of the bottom shell (24). The other end of the second support rod (27) is fixedly connected to the bottom of the paper feed groove (1).

6. The multi-layer booklet folding and positioning fixture according to claim 4, characterized in that: Four sets of casters (28) are fixedly installed around the bottom of the bottom shell (24).

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