Folding machine

Abstract

The invention discloses a folding machine which comprises a grid plate fixedly installed on a turnover machine frame, a feeding roller is installed at the end, located on the grid plate, of the machine frame and used for conveying paper to the grid plate, a supporting frame is fixed to the machine frame, and a vertical electric telescopic rod is fixed to the top of the supporting frame. A mounting plate is fixed to the movable end of the bottom of the electric telescopic rod, a pressing plate located in the interval of the grid plate is fixedly mounted on the mounting plate through screws, two sets of conical guide plates are symmetrically fixed to the two sides of the bottom of the pressing plate, the inclination angle ranges from 30 degrees to 45 degrees, and a storage cavity and a connecting cavity are formed in the pressing plate; a draw-off pump and a spray pipe arranged in the length direction of the pressing plate are installed in the connecting cavity, the spray pipe is connected with the draw-off pump, a spray head penetrating through the connecting cavity and the bottom of the pressing plate is arranged at the bottom of the spray pipe, and the spray head is located in the middle of the guide plate. The invention belongs to the technical field of folding machines, and particularly relates to a folding machine.

Description

Technical Field

[0001] The present invention belongs to the technical field of folder machines, and specifically refers to a folder machine. Background Art

[0002] In the field of traditional folder machine technology, the main function of a folder machine is to fold paper according to specific specifications, and it is widely used in industries such as printing and packaging. However, with the continuous improvement of the quality requirements for printed products and packaging products in the market, many products need to be glued after folding to enhance the firmness of the folded part, such as the folding of the inner pages of hardcover books and the forming of packaging boxes.

[0003] In the prior art, the folding and gluing processes are mostly separated. It is necessary to first complete the paper folding through a folder machine. This separated processing method not only requires additional independent gluing equipment, which occupies a large amount of production space, but also prolongs the production process, resulting in a significant increase in equipment investment costs and production time costs. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a folder machine, which effectively solves the problem that the integration of folding and automatic gluing cannot be achieved.

[0005] To achieve the above functions, the technical solution adopted by the present invention is as follows: A folder machine includes a frame. A grid plate is fixedly installed on the frame. A feeding roller is installed at one end of the frame where the grid plate is located for conveying paper to the grid plate. A support frame is fixed on the frame. A vertical electric telescopic rod is fixed at the top of the support frame. The movable end of the bottom of the electric telescopic rod is fixed with a mounting plate. A pressing plate located within the interval of the grid plate is fixedly installed on the mounting plate by screws. Two groups of tapered guide plates are symmetrically fixed on both sides of the bottom of the pressing plate, with an inclination angle of 30 - 45 degrees. A storage cavity and a connection cavity are provided inside the pressing plate. An extraction pump and a spray pipe arranged along the length direction of the pressing plate are installed in the connection cavity. The spray pipe is connected to the extraction pump. The bottom of the spray pipe is provided with a nozzle that penetrates through the connection cavity and the bottom of the pressing plate. The nozzle is located in the middle of the guide plates;

[0006] A folding roller is provided below the pressing plate. A conveyor belt is provided below the folding roller for conveying the folded and glued paper. An infrared sensor is installed at the entrance of the folding roller for detecting the position of the paper and sending a signal to the control system to trigger the start of the extraction pump.

[0007] Preferably, two groups of fixing frames symmetrically arranged with respect to the axis of the pressing plate are fixed at positions near both ends of the bottom of the grid plate. Guide rollers are rotatably provided on both groups of fixing frames. The infrared sensor is fixedly installed on the fixing frame.

[0008] Preferably, the folding roller is horizontally installed on the fixed frame through a rotating shaft. One end of the rotating shaft is fixed with meshing gears, and a first motor is installed at one end of the fixed frame away from the gears.

[0009] Preferably, an installation frame is installed at the bottom of the grid plate. A rotating roller is installed on the installation frame, a conveyor belt is wound around the rotating roller, and a second motor for driving the rotating roller to rotate is also provided on the installation frame.

[0010] Preferably, a limiting end plate is fixed at one end of the grid plate away from the feeding roller, and limiting side plates are fixed on both sides of the pressing plate.

[0011] Preferably, the nozzle is a piezoelectric micro-hole nozzle with a pore diameter of 0.1 - 0.3 mm.

[0012] Preferably, the bottom of the storage cavity is an inverted conical surface.

[0013] Preferably, the same grid plate, pressing plate, and glue spraying unit can be expandably installed on one side of the conveyor belt for expanding the glue spraying process.

[0014] The beneficial effects of the present invention adopting the above structure are as follows:

[0015] 1. This application integrates the folding and automatic gluing functions into the same device. Through continuous automated operations such as feeding, glue spraying, and folding, manual intervention and the process connection time are significantly reduced, and the production efficiency is greatly improved.

[0016] 2. The linkage between the infrared sensor and the extraction pump ensures precise glue spraying before the paper enters the folding roller, guaranteeing the accuracy of the gluing position and the stability of the glue amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of a folding machine proposed by the present invention Figure 1 ;

[0018] Figure 2 is a schematic diagram of the overall structure of a folding machine proposed by the present invention Figure 2 ;

[0019] Figure 3 is a bottom view of a folding machine proposed by the present invention;

[0020] Figure 4 is a front view of a folding machine proposed by the present invention;

[0021] Figure 5 is Figure 4 a partial enlarged view at A in

[0022] Figure 6 is a cross-sectional view of a folding machine proposed by the present invention;

[0023] Figure 7 This is a usage state diagram of a folding machine proposed by the present invention.

[0024] Among them, 1. Frame, 2. Grid plate, 3. Feeding roller, 4. Support frame, 5. Electric telescopic rod, 6. Mounting plate, 7. Pressing plate, 8. Guide plate, 9. Storage cavity, 10. Connection cavity, 11. Spray pipe, 12. Folding roller, 13. Conveyor belt, 14. Infrared sensor, 15. Fixed frame, 16. Guide roller, 17. Rotating shaft, 18. Gear, 19. Motor 1, 20. Mounting frame, 21. Rotating roller, 22. Motor 2, 23. Limit end plate, 24. Limit side plate, 25. Nozzle, 26. Extraction pump. Specific embodiments

[0025] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The following will further describe the present invention in detail with reference to the accompanying drawings.

[0027] Such as Figure 1-7As shown in the figure, a folding machine proposed by the present invention includes a frame 1, on which a grid plate 2 is fixedly installed. At one end of the grid plate 2 on the frame 1, a feeding roller 3 is installed for conveying paper to the grid plate 2. A support frame 4 is fixed on the frame 1, and a vertical electric telescopic rod 5 is fixed on the top of the support frame 4. The movable end at the bottom of the electric telescopic rod 5 is fixed with a mounting plate 6. A pressing plate 7 located within the interval of the grid plate 2 is fixedly installed on the mounting plate 6 by screws. On both sides of the bottom of the pressing plate 7, two groups of tapered guide plates 8 are symmetrically fixed, with an inclination angle of 30 - 45 degrees. A storage cavity 9 and a connection cavity 10 are provided inside the pressing plate 7. There is a heater inside the side wall of the storage cavity 9 to maintain the viscosity of the glue. An extraction pump 26 and a spray pipe 11 arranged along the length direction of the pressing plate 7 are installed in the connection cavity 10. The spray pipe 11 is connected to the extraction pump 26. At the bottom of the spray pipe 11, there is a nozzle 25 passing through the connection cavity 10 and the bottom of the pressing plate 7. The nozzle 25 is located in the middle of the guide plate 8. The nozzle 25 is a piezoelectric microporous nozzle 25 with a pore diameter of 0.1 - 0.3 mm. The bottom of the storage cavity 9 is an inverted cone surface, so that the glue in the storage cavity 9 naturally converges towards the bottom center under the action of gravity, avoiding glue residue in the cavity, ensuring that the glue can be fully extracted by the extraction pump 26, and improving the utilization rate of the glue;

[0028] As Figure 5 shown, a folding roller 12 is provided below the pressing plate 7, and a conveyor belt 13 is provided below the folding roller 12 for conveying the paper that has been folded and coated with glue. An infrared sensor 14 is installed at the entrance of the folding roller 12 for detecting the position of the paper and sending a signal to the control system to trigger the start of the extraction pump 26. At positions near both ends of the bottom of the grid plate 2, two groups of fixing frames 15 are symmetrically arranged with respect to the axis of the pressing plate 7. Guide rollers 16 are rotatably provided on both groups of fixing frames 15 to guide the paper. The infrared sensor 14 is fixedly installed on the fixing frame 15.

[0029] As Figure 2 、 5 、6 shown, the folding roller 12 is horizontally installed on the fixing frame 15 through a rotating shaft 17. One end of the rotating shaft 17 is fixed with a gear 18 that meshes with each other. At one end of the fixing frame 15 away from the gear 18, a motor 19 is installed. The motor 19 drives the rotating shaft 17 to rotate. While the rotating shaft 17 drives the gear 18 to rotate relatively, the folding roller 12 is driven to rotate, thereby realizing the synchronous progress of glue spraying and folding.

[0030] As Figure 1 、 3 shown, an installation frame 20 is installed at the bottom of the grid plate 2. A rotating roller 21 is installed on the installation frame 20. A conveyor belt 13 is wound around the rotating roller 21. A motor 22 for driving the rotating roller 21 to rotate is also provided on the installation frame 20. The motor 22 drives the rotating roller 21 and the conveyor belt 13 to rotate, and conveys the paper at the folding roller 12 to the next process.

[0031] As Figure 1As shown, one end of the grid plate 2 away from the feeding roller 3 is fixed with a limit end plate 23 to limit one end of the paper, and limit side plates 24 are fixed on both sides of the pressing plate 7 to limit the pressing plate 7.

[0032] As Figure 7 shown, the same grid plate 2, pressing plate 7 and glue spraying unit can be expandably installed on one side of the conveyor belt 13 for expanding the glue spraying process.

[0033] During specific use, the paper is sent to the grid plate 2 by the feeding roller 3 to complete the feeding and positioning. The electric telescopic rod 5 drives the mounting plate 6 and the pressing plate 7 to move downward. The guiding plates 8 on both sides of the bottom of the pressing plate 7 first contact the paper and gather and guide the paper towards the middle under the action of the conical structure. At this time, the paper gradually approaches the folding roller 12 under the guidance of the guiding plate 8 through the guiding roller 16;

[0034] When the paper is about to enter the folding roller 12, the infrared sensor 14 at the entrance of the folding roller 12 recognizes the paper signal and immediately transmits the signal to the control system. The control system then starts the extraction pump 26. The extraction pump 26 extracts glue from the storage cavity 9 in the pressing plate 7. The glue passes through the spray pipe 11 in the connecting cavity 10 and is sprayed out from the nozzle 25 penetrating the bottom of the pressing plate 7, and is evenly coated on the position of the paper to be folded;

[0035] After the glue spraying is completed, the pressing plate 7 continues to press down, and the paper is sent to the folding roller 12. The folding roller 12 folds the paper; the folded paper continues to be conveyed to the next folding roller 12, and the glue is fully bonded to the paper through the extrusion of the folding roller 12 to complete the folding and glue spraying processes;

[0036] If it is necessary to apply glue to more pages of the paper, the same grid plate 2 and glue spraying unit can be set on one side of the conveyor belt 13. When the paper is conveyed to this position, the above-mentioned glue spraying and folding processes are repeated, and the start times and times of the extraction pump 26 are precisely controlled by the control system to achieve the glue application operation for the specified number of pages and meet the complex production scenarios of multi-page and multi-position glue application.

[0037] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the purpose of the present invention creation, they design similar structural manners and embodiments to this technical solution without creative efforts, and all should belong to the protection scope of the present invention.

Claims

1. A folding machine, characterized in that: The invention comprises a frame (1), a grid plate (2) is fixedly mounted on the frame (1), a feeding roller (3) is mounted on one end of the frame (1) located on the grid plate (2) for conveying paper to the grid plate (2), a support frame (4) is fixed on the frame (1), a vertical electric telescopic rod (5) is fixed on the top of the support frame (4), a mounting plate (6) is fixed on the movable end at the bottom of the electric telescopic rod (5), and a pressing plate (7) located in the interval of the grid plate (2) is fixedly mounted on the mounting plate (6) by screws; Two groups of conical guide plates (8) are symmetrically fixed on both sides of the bottom of the pressing plate (7), with an inclination angle of 30-45°. A storage chamber (9) and a connecting chamber (10) are provided in the pressing plate (7). An extraction pump (26) and a nozzle (11) arranged along the length direction of the pressing plate (7) are installed in the connecting chamber (10). The nozzle (11) is connected to the extraction pump (26). A nozzle (25) penetrating the connecting chamber (10) and the bottom of the pressing plate (7) is provided at the bottom of the nozzle (11). The nozzle (25) is located in the middle of the guide plate (8); A folding roller (12) is provided below the pressure plate (7), and a conveyor belt (13) is provided below the folding roller (12) for conveying the folded and glued paper. An infrared sensor (14) is installed at the entrance of the folding roller (12) for detecting the position of the paper and sending a signal to the control system to trigger the start of the extraction pump (26).

2. A folding machine according to claim 1, characterized in that: Two groups of fixing frames (15) are fixed at positions near the two ends of the bottom of the grid plate (2) and are arranged symmetrically with respect to the axis of the pressure plate (7). Guide rollers (16) are rotatably provided on the two groups of fixing frames (15), and the infrared sensor (14) is mounted and fixed on the fixing frames (15).

3. A folding machine according to claim 2, characterized in that: The folding roller (12) is horizontally mounted on a fixed frame (15) via a rotating shaft (17); a mutually meshing gear (18) is fixed to one end of the rotating shaft (17); and a motor (19) is mounted on one end of the fixed frame (15) away from the gear (18).

4. A folding machine according to any one of claims 1 to 3, characterized in that: A mounting frame (20) is installed at the bottom of the grid plate (2), a rotating roller (21) is installed on the mounting frame (20), a conveyor belt (13) is wound around the rotating roller (21), and a second motor (22) for driving the rotating roller (21) to rotate is also provided on the mounting frame (20).

5. A folding machine according to claim 4, characterized in that: A limiting end plate (23) is fixed on one end of the grid plate (2) away from the feeding roller (3), and limiting side plates (24) are fixed on both sides of the pressing plate (7).

6. A folding machine according to claim 1, characterized in that: The nozzle (25) is a piezoelectric micro-pore nozzle (25) with a pore diameter of 0.1-0.3 mm.

7. A folding machine according to claim 1, characterized in that: The bottom of the storage cavity (9) is an inverted cone.

8. A folding machine according to claim 7, characterized in that: One side of the conveyor belt (13) can be expanded to be equipped with the same grid plate (2), pressing plate (7) and glue spraying unit, so as to expand the glue spraying process.

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