Device and method for adjusting front lay gauge of folding knife of folding machine

Abstract

The invention discloses a folding machine folding knife front lay gauge adjusting device and method, and belongs to the technical field of printing folding machine adjusting.The folding machine folding knife front lay gauge adjusting device comprises an air cylinder, a third support and a mounting base, the mounting base is connected with a square bar through the air cylinder, the square bar is connected with a front lay gauge and a second supporting plate, and a first bent plate is arranged on the side wall of the front lay gauge and connected with a supporting plate; the first bent plate is fixedly connected with the supporting plate, the second supporting plate is connected with the square bar through a first threaded shaft, and a paper pressing plate facing the supporting block is fixedly connected to the first bent plate. The linear adjustment of the front lay gauge, the paper pressing plate and the air blowing plate is adjusted through the air cylinder and the motor, the front lay gauge is rotationally adjusted through the systematic action of the hand wheel shaft, the connecting shaft and the threaded shaft, various parameters of the folding machine can be rapidly adjusted in different format treatment processes, and therefore the production efficiency and the product quality are remarkably improved, and the production cost is reduced. The folding mechanism meets the requirements of the market for high-precision and high-speed production, and has the characteristic that the folding precision is improved by quickly adjusting the front lay gauge.

Description

Technical Field

[0001] The invention belongs to the technical field of printing folding machine adjustment, and in particular relates to a folding knife front stop gauge adjustment device for a folding machine, and also relates to a folding knife front stop gauge adjustment method for a folding machine. Background Art

[0002] In the printing industry, folding machines are essential equipment for book binding. Their working principle can be simply summarized as follows: a series of operations are performed to fold the printed paper of the web at a specific position, and finally the desired folding effect is formed. Traditional manual folding and low-speed folding machines can no longer meet the quality requirements of printed binding, especially when customers require short production cycles and high quality requirements. In the production process of web rotary machines, traditional folding machines usually need to handle different formats, such as octavo, 24-mo, 16-mo and 32-mo. However, with the continuous changes in market demand, the requirements for the automation and precision of format conversion of folding machines are becoming higher and higher. The national standard stipulates that the folding accuracy of the folding quality printing machine is within ±1.0mm, and the qualified rate is 98%. The folding precision of the printing machine should not be greater than 0.6mm. In order to achieve high-speed and high-precision folding standards, a folding machine folding knife front stop gauge adjustment device is designed and invented to achieve the adjustment of the folding knife front stop gauge of the folding machine, and quickly adjust to achieve folding accuracy, thereby improving production efficiency and flexibility. Summary of the invention

[0003] The first purpose of the present invention is to provide a front stop gauge adjustment device for a folding knife of a folding machine, which has the characteristic of improving the folding accuracy by quickly adjusting the front stop gauge.

[0004] The second object of the present invention is to provide a method for adjusting the front stop gauge of a folding knife of a folding machine.

[0005] The first technical solution adopted by the present invention is that the folding knife front stop gauge adjustment device of the folding machine includes a correspondingly arranged third bracket and a mounting seat, and cylinders are installed on the same-direction side walls of the third bracket and the mounting seat; A support block is provided on the side wall of the third bracket, the third bracket and the support block are slidably connected via a guide shaft, the support block is connected to the telescopic end of the cylinder, and a blowing plate and a press paper board facing the mounting seat are fixedly connected to the support block; A square bar is provided on one side of the mounting seat, the square bar is connected to the telescopic end of the cylinder, the square bar is connected to a front stop gauge and a second support plate, a bent plate is provided on the side wall of the front stop gauge, the bent plate is connected to the second support plate, the bent plate is fixedly connected to the second support plate, the second support plate is connected to the square bar through a first threaded shaft, and a pressure paper facing the support block is fixedly connected to the bent plate.

[0006] The first technical solution of the present invention is also characterized in that: A fifth bracket is fixedly connected to the square bar, a second connecting shaft is arranged in the fifth bracket, the first threaded shaft is meshingly connected with the second connecting shaft through a bevel gear, one end of the second connecting shaft extends out of the fifth bracket, a retaining ring is connected to the end of the second connecting shaft extending out of the fifth bracket, the other end of the second connecting shaft is connected to a movable universal coupling, and the movable universal coupling is connected to a motor.

[0007] A spring shaft is also provided through the second support plate, and the spring shaft is threadedly connected to the square bar.

[0008] The end of the square bar is connected to the mounting seat through a tension spring; a first connecting shaft is penetrated through the mounting seat, a stopper is fixedly connected to the side wall of the mounting seat, a groove is opened on the top of the first connecting shaft along the horizontal direction, the stopper cooperates with the groove, one end of the first connecting shaft abuts against the square bar, and the other end of the first connecting shaft is threadedly connected to the second threaded shaft, and the second threaded shaft is meshed with the handwheel shaft through a bevel gear.

[0009] The mounting seat is provided with a first mounting block and a second mounting block, the second threaded shaft is rotatably connected to the first mounting block, the handwheel shaft is rotatably connected to the second mounting block, and a spring piece is connected between the handwheel shaft and the second mounting block.

[0010] The side wall of the support block is also provided with a first support plate, on which a photoelectric switch is provided.

[0011] The second technical solution adopted by the present invention is a method for adjusting the front stop gauge of a folding knife of a folding machine. The method adopts the above-mentioned front stop gauge adjustment device of a folding knife of a folding machine. When the front stop gauge is adjusted up and down, the cylinder moves, driving the third bracket and the square bar to move along the extension and contraction direction of the cylinder; the motor rotates, so that the movable universal joint drives the second connecting shaft to rotate, and drives the first threaded shaft to rotate through the bevel gear, thereby controlling the axial movement of the second support plate along the first threaded shaft; when the front stop gauge is rotated and adjusted, the handwheel shaft is rotated to drive the second threaded shaft to rotate, so that the first connecting shaft moves back and forth on the mounting seat, driving the square bar to rotate along the axis of the cylinder.

[0012] The beneficial effects of the present invention are: The present invention uses a cylinder and a motor to adjust the front stopper, the paper pressing plate and the air blowing plate in a linear manner, and uses the system action of a handwheel shaft, a connecting shaft and a threaded shaft to rotationally adjust the front stopper. The present invention can quickly adjust various parameters of the folding machine during processing of different book formats, thereby significantly improving production efficiency and product quality, and meeting the market demand for high-precision and high-speed production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the front stop gauge adjustment device of the folding knife of the folding machine of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure in the middle A direction; Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure in the middle B direction; Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure in the middle C direction; Figure 5 for Figure 1 Isometric diagram of .

[0014] In the figure, 1. the first bracket, 2. the second bracket, 3. the third bracket, 4. the guide shaft, 5. the support block, 6. the fourth bracket, 7. the first paperboard, 8. the second paperboard, 9. the first support plate, 10. the first blowing plate, 11. the second blowing plate, 12. the third paperboard, 13. the fourth paperboard, 14. the square bar, 15. the first threaded shaft, 16. the spring, 17. the second threaded shaft, 18. the first mounting block, 19. the spring shaft, 20. The first bending plate, 21. The second mounting block, 22. The handwheel shaft, 23. The small block, 24. The first connecting shaft, 25. The second bending plate, 26. The third bending plate, 27. The fifth paper pressing plate, 28. The sixth paper pressing plate, 29. The seventh paper pressing plate, 30. The eighth paper pressing plate, 31. The cylinder, 32. The fifth bracket, 33. The second connecting shaft, 34. The front stop gauge a, 35. The front stop gauge b, 36. The second support plate, 37. The front stop gauge c, 38. The retaining ring, 39. The photoelectric switch, 40. The motor, 41. The mounting base. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] Example 1 like Figure 1-5 As shown, the folding knife front stop gauge adjustment device of the folding machine disclosed in the present invention comprises a correspondingly arranged third bracket 3 and a mounting seat 41, and a cylinder 31 is installed on the same direction side walls of the third bracket 3 and the mounting seat 41; The side wall of the third bracket 3 is provided with a support block 5, the third bracket 3 and the support block 5 are slidably connected via a guide shaft 4, the support block 5 is connected to the telescopic end of the cylinder 31, and a blowing plate and a press paper board facing the mounting seat are fixedly connected to the support block 5; In this embodiment, the blowing plate fixed to the support block 5 includes a first blowing plate 10 and a second blowing plate 11 of the same specifications, and the paperboard fixed to the support block 5 includes a first paperboard 7 and a second paperboard 8 of the same specifications. The first blowing plate 10 and the second blowing plate 11 are located near the upper and lower ends of the support block 5, and the first paperboard 7 and the second paperboard 8 are located in the middle of the support block 5. The third paperboard 12 and the fourth paperboard 13 of the same specifications and inclined are fixed to the right ends of the first paperboard 7 and the second paperboard 8. The third paperboard 12 and the fourth paperboard 13 are inclined in opposite directions, and there are gaps between the first paperboard 7 and the second paperboard 8 and between the third paperboard 12 and the fourth paperboard 13. The cylinder 31 drives the support block 5 to move up and down along the axis of the cylinder 31. When the support block 5 moves to the left, the guide shaft 4 moves to the left along the hole on the third bracket 3, which can play a guiding role.

[0017] A square bar 14 is provided on one side of the mounting seat 41, and the square bar 14 is connected to the telescopic end of the cylinder 31. A front baffle and a second support plate 36 are connected to the square bar 14. A bent plate is provided on the side wall of the front baffle, and the bent plate is connected to the support plate 43. The bent plate is fixedly connected to the support plate 43. The second support plate 36 is connected to the square bar 14 through a first threaded shaft 15, and a pressure paper facing the support block 5 is fixedly connected to the bent plate.

[0018] In this embodiment, the cylinder 31 can drive the square bar 14 to move up and down or rotate along the cylinder axis, and further drive the front stopper to move up and down or rotate. The paper pressing plates fixed on the bent plate are the fifth paper pressing plate 27, the sixth paper pressing plate 28, the seventh paper pressing plate 29, and the eighth paper pressing plate 30. The fifth paper pressing plate 27 and the seventh paper pressing plate 29 are of the same specification and are close to the middle of the square bar. The sixth paper pressing plate 28 and the eighth paper pressing plate 30 are of the same specification and are close to the upper and lower sides of the square bar 14. In this embodiment, the bent plate includes two groups of first bent plates 20, second bent plates 25, and third bent plates 26. The two first bent plates 20 are respectively connected to the seventh paper pressing plate 29 and the fifth paper pressing plate 27, the two second bent plates 25 are respectively connected to the two sixth paper pressing plates 28, and the two third bent plates 26 are respectively connected to the two eighth paper pressing plates 30.

[0019] The lengths of the first cardboard press 7, the second cardboard press 8, the third cardboard press 12, and the fourth cardboard press 13 are longer than the first blowing plate 10 and the second blowing plate 11, and the first cardboard press 7, the second cardboard press 8, the third cardboard press 12, and the fourth cardboard press 13 extend between the fifth cardboard press 27 and the seventh cardboard press 29. When the chopper is needed to fold, the cylinder 31 that controls the overall lifting of the front stop gauge and the solenoid valve of the cardboard press and blowing plate lifting cylinder 31 will receive an electrical signal to control the cylinder 31 to fall, so that the paper is blocked on the table, and then the chopper performs folding. This embodiment realizes the overall lifting of the cardboard press and the lifting and lowering adjustment of the table blowing plate, and the lifting and lowering of the front stop gauge when the book opening is switched is realized by the cylinder 31. The present invention not only improves the adjustment flexibility of the folding machine, but also greatly improves the production efficiency, so that it can better meet various production needs.

[0020] Example 2 On the basis of Example 1, a fifth bracket 32 ​​is fixedly connected to the square bar 14, a second connecting shaft 33 is provided in the fifth bracket 32, the first threaded shaft 15 is meshingly connected to the second connecting shaft 33 through a bevel gear, one end of the second connecting shaft 33 extends out of the fifth bracket 32, the end of the second connecting shaft 33 extending out of the fifth bracket 32 ​​is connected to a retaining ring 38, the other end of the second connecting shaft 33 is connected to a movable universal coupling, and the movable universal coupling is connected to a motor 40.

[0021] In this embodiment, the motor 40 drives the movable universal joint and the second connecting shaft 33 to rotate, and the bevel gear drives the first threaded shaft 15 to rotate synchronously. The rotation of the first threaded shaft 15 can drive the second support plate 36 to move up and down along the threaded shaft, that is, drive the paper pressing plate fixed on the bent plate toward the support block 5 to move up and down. This embodiment realizes the height adjustment of the front baffle paper pressing plate.

[0022] When changing to different weights of paper, the change in paper thickness requires adjusting the distance between the paper pressing plate and the table surface. To solve this problem, the present embodiment uses a servo motor 40. The motor 40 drives the second connecting shaft 33 to rotate through a retractable universal joint. The spur bevel gear on the second connecting shaft 33 drives the first threaded shaft 15 to rotate. The first threaded shaft 15 and the second support plate 36 are connected by threads. When the first threaded shaft 15 rotates, the second support plate 36 moves up and down, thereby achieving fine adjustment of the paper pressing plate up and down.

[0023] Furthermore, a spring shaft 19 is penetrated through the second support plate 36 , and the spring shaft 19 is threadedly connected to the square bar 14 .

[0024] In this embodiment, the end of the spring shaft 19 abuts against 19 , which can ensure the stability of the second support plate 36 when it moves and also limit the movement of the second support plate 36 .

[0025] Example 3 On the basis of Example 1, the end of the square bar 14 is connected to the mounting seat 41 through a tension spring; a first connecting shaft 24 is penetrated by the mounting seat 41, a stopper is fixedly connected to the side wall of the mounting seat 41, a groove is opened on the top of the first connecting shaft 24 along the horizontal direction, the stopper cooperates with the groove, one end of the first connecting shaft 24 abuts against the square bar 14, and the other end of the first connecting shaft 24 is threadedly connected to the second threaded shaft 17, and the second threaded shaft 17 is meshed with the handwheel shaft 22 through a bevel gear.

[0026] When the paper is driven by the belt and blocked on the table by the front stopper, the paper may be skewed due to various reasons such as impact, friction, speed difference, etc. At this time, the skew of the front stopper must be adjusted to ensure that the chopper and the paper are parallel. In order to achieve this function, in this embodiment, the square bar 14 is tightly pressed on the first connecting shaft 24 through a tension spring and a small block 23. The small block 23 is fixedly connected to the square bar 14, and the small block 23 is connected to the tension spring. The small block 23 is only used to facilitate the connection with the tension spring. In essence, the tension spring plays a connecting role. The end of the handwheel shaft 22 and the second screw The threaded shaft 17 is installed with bevel gears that mesh with each other. The handwheel shaft 22 is rotated to drive the second threaded shaft 17 to rotate. The second threaded shaft 17 is connected to the first connecting shaft 24. The length of the groove is greater than the thickness of the block. The block can achieve the technical effect that the first connecting shaft 24 can only move forward and backward and cannot rotate. The forward and backward movement of the first connecting shaft 24 is the length of the groove. Therefore, the rotation of the second threaded shaft 17 can realize the forward and backward movement of the first connecting shaft 24, and realize the rotation of the square bar 14 around the axis of the cylinder 31 by a certain angle. This embodiment realizes the overall tilting of the front stop gauge.

[0027] Furthermore, a first mounting block 18 and a second mounting block 21 are mounted on the mounting seat 41 , the second threaded shaft 17 is rotatably connected to the first mounting block 18 , the handwheel shaft 22 is rotatably connected to the second mounting block 21 , and a spring piece 16 is connected between the handwheel shaft 22 and the second mounting block 21 .

[0028] In this embodiment, the first mounting block 18 and the second mounting block 21 can support the second threaded shaft 17 and the handwheel shaft 22 respectively. The spring clip 16 is connected between the handwheel shaft 22 and the second mounting block 21. The spring clip 16 only allows manual rotation of the handwheel shaft 22 to avoid accidental rotation of the handwheel shaft 22 during vibration of the device, causing the front stop gauge to tilt.

[0029] Example 4 On the basis of Example 1, a first support plate 9 is further installed on the side wall of the support block 5 , and a photoelectric switch 39 is installed on the first support plate 9 .

[0030] The photoelectric switch 39 does not fold the paper again. At this time, the paper should continue to move forward along the table, and the 8-flowered roller will catch the folded paper, and then it will fall on the paper feeding row, and will be output by the paper feeding belt and enter the stacking machine for packaging. At this time, it is necessary to ensure that the paper is fed smoothly without paper jams. When paper jams occur on the table, the machine will automatically stop. If the machine is not stopped due to paper jams, more and more pages will accumulate, which may cause permanent damage to the mechanical part of the machine. In this case, the damaged parts can only be replaced. In order to achieve paper jam shutdown, the present embodiment adds a photoelectric switch 39 to achieve it.

[0031] The fourth paper press 13 and the third paper press 12 are fastened to the fourth bracket 6 by screws. The fourth bracket 6 is fixed to the support block 5. The up and down movement of the paper press is achieved by the extension and retraction of the cylinder 31. When working with an 8-page book, the paper press is lifted up so that the paper can pass through the table normally. When working with a 16-page book, the cylinder 31 rises to press the paper press down. Due to the streamlined design of the paper press, the paper can smoothly enter the 16-page paper grinding wheel. The first blowing plate 10 and the second blowing plate 11 are on the support block 5. The support block 5 is fastened to the guide shaft 4 by screws. The guide shaft 4 is inserted into the third bracket 3 and can move up and down in the hole to achieve the up and down movement of the blowing plate. Figure 4 As shown, the photoelectric switch 39 is installed on the first support plate 9. As long as paper jam or sheet breakage occurs, the photoelectric switch will detect a signal, causing the folding machine to stop rotating, thereby achieving the purpose of protecting the folding machine.

[0032] Front stop gauge adjustment, such as Figure 1 As shown, the sixth cardboard pressing plate 28, the seventh cardboard pressing plate 29, and the eighth cardboard pressing plate 30 are installed on the first curved plate 20, the second curved plate 25, and the third curved plate 26. The curved plate is installed with a second support plate 36 that can move up and down. The up and down movement of the second support plate 36 is driven by a motor 40. The motor 40 is connected to a bevel gear and drives the second connecting shaft 33 to rotate through a movable universal joint. The second connecting shaft 33 drives the first threaded shaft 15 to rotate through the bevel gear. The second support plate 36 is connected to the first threaded shaft 15 through a thread. After the first threaded shaft 15 rotates, the second support plate 36 can be moved up and down, so that the distance between the cardboard pressing plate and the table surface can be adjusted. The front stop gauge of the present invention includes a front stop gauge a34, a front stop gauge b35, and a front stop gauge c37 installed on a square bar 14. The square bar 14 is connected to a cylinder 31, and the overall up and down movement of the front stop gauge is achieved through the cylinder 31. The first paper pressing plate 7 and the second paper pressing plate 8 correspond to the front stop gauge a34, the fifth paper pressing plate 27 is arranged on the front stop gauge b35, and the seventh paper pressing plate 29 is arranged on the front stop gauge c37.

[0033] The first bracket 1 and the second bracket 2 in the present invention are used to install the folding knife front stop gauge adjustment device of the folding machine of the present invention with other components in the equipment.

[0034] The present invention also discloses a method for adjusting the front stop gauge of a folding knife of a folding machine. The device for adjusting the front stop gauge of a folding knife of a folding machine is used. When the front stop gauge is adjusted up and down, the cylinder 31 moves, driving the third bracket 3 and the square bar 14 to move along the telescopic direction of the cylinder 31; the motor 40 rotates, driving the mobile universal joint to drive the second connecting shaft 33 to rotate, driving the first threaded shaft 15 to rotate through the bevel gear, and controlling the second support plate 36 to move axially along the first threaded shaft 15; when the front stop gauge is rotated and adjusted, the handwheel shaft 22 is rotated to drive the second threaded shaft 17 to rotate, so that the first connecting shaft 24 moves back and forth on the mounting seat 41, driving the square bar 14 to rotate along the axis of the cylinder 31.

[0035] The present invention aims to realize the adjustment of the front stopper of the folding knife of the folding machine, and quickly adjusts it to achieve folding accuracy, thereby improving production efficiency and flexibility. To ensure the accuracy and consistency of folding. The application of the present invention is conducive to greatly improving the automation degree and production efficiency of the folding machine.

[0036] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0037] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A folding machine folding knife front gauge adjustment device, characterized in that: It comprises a third bracket (3) and a mounting seat (41) which are arranged correspondingly, and a cylinder (31) is mounted on the side walls of the third bracket (3) and the mounting seat (41) in the same direction; A support block (5) is provided on the side wall of the third bracket (3); the third bracket (3) and the support block (5) are slidably connected via a guide shaft (4); the support block (5) is connected to the telescopic end of the cylinder (31); and a blowing plate and a press paper board facing the mounting seat are fixedly connected to the support block (5); A square bar (14) is provided on one side of the mounting seat (41), the square bar (14) is connected to the telescopic end of the cylinder (31), a front stopper and a second support plate (36) are connected to the square bar (14), a bent plate is provided on the side wall of the front stopper, the bent plate is connected to the second support plate (36), the second support plate (36) is connected to the square bar (14) via a first threaded shaft (15), and a press paper facing the support block (5) is fixedly connected to the bent plate.

2. The folding knife front gauge adjustment device for a folding machine according to claim 1, characterized in that: A fifth bracket (32) is fixedly connected to the square bar (14), a second connecting shaft (33) is arranged in the fifth bracket (32), the first threaded shaft (15) is meshingly connected to the second connecting shaft (33) via a bevel gear, one end of the second connecting shaft (33) extends out of the fifth bracket (32), a retaining ring (38) is connected to the end of the second connecting shaft (33) extending out of the fifth bracket (32), the other end of the second connecting shaft (33) is connected to a movable universal coupling, and the movable universal coupling is connected to a motor (40).

3. The folding knife front gauge adjustment device for a folding machine according to claim 2, characterized in that: A spring shaft (19) is also provided through the second support plate (36), and the spring shaft (19) is threadedly connected to the square bar (14).

4. The folding knife front gauge adjustment device for a folding machine according to claim 1, characterized in that: The end of the square bar (14) is connected to the mounting seat (41) through a tension spring; a first connecting shaft (24) is passed through the mounting seat (41); a stopper is fixedly connected to the side wall of the mounting seat (41); a groove is formed on the top of the first connecting shaft (24) along the horizontal direction; the stopper cooperates with the groove; one end of the first connecting shaft (24) abuts against the square bar (14); the other end of the first connecting shaft (24) is threadedly connected to a second threaded shaft (17); the second threaded shaft (17) is meshedly connected to a handwheel shaft (22) through a bevel gear.

5. The folding knife front gauge adjustment device for a folding machine according to claim 4, characterized in that: A first mounting block (18) and a second mounting block (21) are mounted on the mounting seat (41); the second threaded shaft (17) is rotatably connected to the first mounting block (18); the handwheel shaft (22) is rotatably connected to the second mounting block (21); and a spring sheet (16) is connected between the handwheel shaft (22) and the second mounting block (21).

6. The folding knife front gauge adjustment device for a folding machine according to claim 1, characterized in that: The side wall of the support block (5) is also provided with a first support plate (9), and a photoelectric switch (39) is provided on the first support plate (9).

7. A method for adjusting a front stop gauge of a folding knife of a folding machine, using the device for adjusting a front stop gauge of a folding knife of a folding machine as claimed in claim 2, characterized in that: When the front stop gauge is adjusted up and down, the cylinder (31) moves, driving the third bracket (3) and the square bar (14) to move along the extension and contraction direction of the cylinder (31); the motor (40) rotates, driving the movable universal joint to drive the second connecting shaft (33) to rotate, driving the first threaded shaft (15) to rotate through the bevel gear, and controlling the second support plate (36) to move axially along the first threaded shaft (15); When the front stop gauge is rotated for adjustment, the hand wheel shaft (22) is rotated to drive the second threaded shaft (17) to rotate, so that the first connecting shaft (24) moves forward and backward on the mounting seat (41), driving the square bar (14) to rotate along the axis of the cylinder (31).

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