A parallel knife mechanism for folding an instruction manual

Abstract

The present invention relates to the technical field of instruction manual folding, and in particular to a parallel knife mechanism for folding instruction manuals, which includes a support frame. A first conveying device is arranged on the front side of the upper end of the support frame, a second conveying device is arranged inside the rear end of the support frame, a pressing mechanism is arranged on the upper end of the support frame, a moving frame is connected to the lower end of the support frame through a lifting mechanism, and a box body is fixedly connected to the upper end of the moving frame. With the action of the first conveying device, the instruction manual to be folded can be moved to the lower end of the pressing mechanism, and then the pressing mechanism presses down. With the cooperation of the positioning mechanism, the instruction manual can be perfectly folded, so that instruction manuals with a relatively thick thickness can be folded, improving the folding effect of the instruction manual. Then, the folded instruction manual enters between the squeezing rollers, and the rotation of the squeezing rollers can convey the folded instruction manual into the second conveying device and be conveyed out by the second conveying device for the next folding of the instruction manual.

Description

Technical Field

[0001] The present invention relates to the technical field of folding instructions, and particularly to a parallel knife mechanism for folding instructions. Background Art

[0002] In order to meet the packaging size requirements, the large instructions need to be folded multiple times to reach the packaging size requirements. Currently, a folding machine is used to fold the instructions. After the instructions are folded multiple times, the thickness of the instructions increases, and the folding machine alone cannot complete the folding. Therefore, it is necessary to design a parallel knife mechanism for folding instructions. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies in the prior art and provide a parallel knife mechanism for folding instructions.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A parallel knife mechanism for folding instructions includes a support frame. A first conveying device is arranged on the front side of the upper end of the support frame, and a second conveying device is arranged inside the rear end of the support frame. A pressing mechanism is arranged on the upper end of the support frame. A moving frame is connected to the lower end of the support frame through a lifting mechanism, and a box body is fixedly connected to the upper end of the moving frame.

[0005] A fixing plate is fixedly connected inside the support frame. A positioning mechanism is arranged on the upper end of the fixing plate. A connecting rod is fixedly connected to the front end of the fixing plate. A pressing roller is rotatably connected inside the connecting rod, and the pressing roller is connected to the first conveying device through a sprocket transmission mechanism.

[0006] A first motor is fixedly connected to the front end of the support frame, and the first motor is used to provide power for the first conveying device. A second motor is fixedly connected inside the support frame, and the second motor is used to provide power for the second conveying device.

[0007] First protective shells are fixedly connected to both sides of the support frame. A controller is installed inside the first protective shell on the right side, and the controller is electrically connected to the first motor and the second motor.

[0008] As a further description of the above technical solution:

[0009] The first conveying device includes a fixed frame, a first rotating roller, and a first conveyor belt. The fixed frame is fixedly connected inside the support frame. The first rotating roller is rotatably connected inside the support frame and the fixed frame, and the first rotating rollers are connected by the first conveyor belt. The first motor is connected to the first rotating roller through a sprocket transmission mechanism.

[0010] As a further description of the above technical solution:

[0011] A support rod is fixedly connected to the lower end of the fixed frame, and one end of the support rod away from the fixed frame is fixedly connected to the support frame.

[0012] As a further description of the above technical solution:

[0013] The positioning mechanism includes a first support frame, a connecting frame, a cylinder, a moving rod, and a positioning block. The upper end of the fixing plate is fixedly connected to the first support frame. The side end of the first support frame is fixedly connected to the connecting frame. One end of the connecting frame away from the first support frame is fixedly connected to the cylinder. The output end of the cylinder is fixedly connected to the moving rod. The moving rod penetrates through the first support frame. The circumferential surface of the moving rod is fixedly connected to the positioning block. Four pressing rollers are provided, and the two pressing rollers at the rear are rotatably connected to the first support frame.

[0014] As a further description of the above technical solution:

[0015] A material guiding plate is fixedly connected inside the first support frame, and one end of the material guiding plate close to the pressing roller is provided with a downward arc.

[0016] As a further description of the above technical solution:

[0017] The pressing mechanism includes a second support frame, a fixing frame, a disc, a linkage rod, a slider, a guide rod, a support plate, a parallel knife body, a mounting plate, and a third motor. The upper end of the support frame is fixedly connected to the second support frame. The upper end of the second support frame is fixedly connected to the fixing frame. The mounting plate is slidably connected inside the fixing frame. A third motor is fixedly connected to the left side of the mounting plate. The output end of the third motor is fixedly connected to the disc. One end of the disc away from the mounting plate is rotatably connected to the linkage rod. One end of the linkage rod away from the disc is rotatably connected to the slider. The parallel knife body is fixedly connected to the rear end of the slider. A support plate is fixedly connected inside the second support frame. The lower end of the support plate is fixedly connected to the guide rod. The guide rod is slidably connected to the slider.

[0018] As a further description of the above technical solution:

[0019] An adjusting handle is slidably connected to the upper end of the fixing frame. The lower end of the adjusting handle is fixedly connected to the mounting plate. Both sides of the mounting plate are fixed inside the fixing frame by screws.

[0020] As a further description of the above technical solution:

[0021] The second conveying device includes a second rotating roller and a second conveyor belt. The second rotating roller is rotatably connected inside the support frame. The second rotating rollers are connected by the second conveyor belt. The second motor is connected to the second rotating roller through a sprocket transmission mechanism.

[0022] As a further description of the above technical solution:

[0023] The lifting mechanism includes a moving rack, a limiting plate, a rotating shaft, a limiting wheel, a gear, a handle, a locking block and a locking rod. The lower end of the support frame is fixedly connected to the limiting plate. The side end of the limiting plate is fixedly connected with a second protective shell. The rotating shaft is rotatably connected inside the limiting plate. Both ends of the rotating shaft penetrate through the limiting plate. The circumferential surface of the rotating shaft is fixedly connected with the gear. The gear meshes with the moving rack. The moving rack is slidably connected between the limiting plates. The side end of the limiting plate is rotatably connected with the limiting wheel. The limiting wheel is located on both sides of the moving rack. The right end of the rotating shaft is fixedly connected with the handle. There are two limiting plates, and the limiting plates are distributed on both sides of the lower end of the support frame. The inner side of the limiting plate on the right side is fixedly connected with the locking block. The rotating shaft is located inside the locking block. The locking rod is threadedly connected inside the locking block. The lower end of the moving rack is fixedly connected with a moving frame. The lower end of the moving frame is fixedly connected with a universal wheel.

[0024] As a further description of the above technical solution:

[0025] Both sides of the lower end of the moving frame are rotatably connected with nitrogen spring telescopic rods. The ends of the nitrogen spring telescopic rods away from the moving frame are rotatably connected with the support frame.

[0026] The present invention has the following beneficial effects:

[0027] 1. Compared with the prior art, for this parallel knife mechanism for folding a manual in half, by setting the first conveying device and the first motor, under the action of the first conveying device, the manual to be folded can be moved to the lower end of the pressing mechanism, and then the pressing mechanism presses down. With the cooperation of the positioning mechanism, the manual can be perfectly folded in half, so that a manual with a relatively thick thickness can be folded, improving the folding effect of the manual. Then the folded manual enters between the squeezing rollers, and the rotation of the squeezing rollers can convey the folded manual into the second conveying device and be conveyed out by the second conveying device for the next folding of the manual.

[0028] 2. Compared with the prior art, for this parallel knife mechanism for folding a manual in half, by setting the moving rack, the limiting plate, the rotating shaft, the limiting wheel, the gear, the handle, the locking block and the locking rod, by rotating the handle, the distance between the moving frame and the support frame can be adjusted, which facilitates the connection of this device with other equipment and improves the connection efficiency between the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view overall structure schematic diagram of a parallel knife mechanism for folding a manual in half proposed by the present invention;

[0030] Figure 2 It is a left view sectional view of a parallel knife mechanism for folding a manual in half proposed by the present invention;

[0031] Figure 3 An enlarged view of part A in a parallel knife mechanism for folding a manual of the present invention Figure 2 ;

[0032] Figure 4 A schematic structural view of splitting the right side of a support frame in a parallel knife mechanism for folding a manual of the present invention

[0033] Figure 5 An enlarged view of part B in a parallel knife mechanism for folding a manual of the present invention Figure 4 ;

[0034] Figure 6 An enlarged view of part C in a parallel knife mechanism for folding a manual of the present invention Figure 4 ;

[0035] Figure 7 A schematic structural view of splitting the whole support frame in a parallel knife mechanism for folding a manual of the present invention

[0036] Figure 8 An enlarged view of part D in a parallel knife mechanism for folding a manual of the present invention Figure 7 ;

[0037] Figure 9 An enlarged view of part E in a parallel knife mechanism for folding a manual of the present invention Figure 7 ;

[0038] Figure 10 A schematic structural view of splitting a positioning mechanism from the whole device in a parallel knife mechanism for folding a manual of the present invention

[0039] Figure 11 An enlarged view of part F in a parallel knife mechanism for folding a manual of the present invention Figure 10 ;

[0040] Legend:

[0041] 1. Support frame; 2. Moving frame; 3. First protective shell; 4. First conveying device; 401. Fixed frame; 402. First rotating roller; 403. First conveyor belt; 5. Lifting mechanism; 501. Moving rack; 502. Limiting plate; 503. Rotating shaft; 504. Limiting wheel; 505. Gear; 506. Handle; 507. Locking block; 508. Locking rod; 6. Second protective shell; 7. Pressing mechanism; 701. Second support frame; 702. Fixed frame; 703. Disc; 704. Linking rod; 705. Slide block; 706. Guide rod; 707. Support plate; 708. Parallel knife body; 709. Mounting plate; 710. Third motor; 8. Box body; 9. First motor; 10. Second motor; 11. Second conveying device; 1101. Second rotating roller; 1102. Second conveyor belt; 12. Support rod; 13. Fixed plate; 14. Positioning mechanism; 1401. First support frame; 1402. Connecting frame; 1403. Cylinder; 1405. Moving rod; 1406. Positioning block; 15. Adjusting handle; 16. Pressing roller; 17. Guide plate; 18. Connecting rod; 19. Nitrogen spring telescopic rod; 20. Controller. Detailed implementation manner

[0042] Refer to Figure 1-11 , a parallel knife mechanism for folding a manual provided by the present invention includes a support frame 1. A first conveying device 4 is arranged on the front side of the upper end of the support frame 1. A second conveying device 11 is arranged inside the rear end of the support frame 1. A pressing mechanism 7 is arranged on the upper end of the support frame 1. The lower end of the support frame 1 is connected to a moving frame 2 through a lifting mechanism 5. The upper end of the moving frame 2 is fixedly connected to a box body 8;

[0043] During use, place the manual to be folded inside the first conveying device 4. The first conveying device 4 conveys the manual to be folded to the lower end of the pressing mechanism 7. At this time, under the action of the pressing mechanism 7, the manual to be folded can be folded in half, thus achieving the purpose of folding the manual, making the folding effect of the manual better, so as to facilitate the packaging of the manual; the folded manual enters the second conveying device 11, and then the folded manual can be conveyed out under the action of the second conveying device 11.

[0044] When installing this mechanism, in order to perfectly cooperate this mechanism with other devices, under the action of the lifting mechanism 5, the height of this mechanism can be adjusted, so as to facilitate cooperation with other devices and improve the connection efficiency between devices.

[0045] A fixed plate 13 is fixedly connected inside the support frame 1. A positioning mechanism 14 is arranged on the upper end of the fixed plate 13. A connecting rod 18 is fixedly connected to the front end of the fixed plate 13. A pressing roller 16 is rotatably connected inside the connecting rod 18. The pressing roller 16 is connected to the first conveying device 4 through a sprocket transmission mechanism;

[0046] The positioning mechanism 14 can adjust both sides of the instruction manual so that the instruction manual can perfectly coincide when folded. The folded instruction manual enters between the squeezing rollers 16, and then the rotation of the squeezing rollers 16 can press and combine the folded instruction manual, and at the same time, it is also convenient to enter the second conveying device 11.

[0047] A first motor 9 is fixedly connected to the front end of the support frame 1. The first motor 9 is used to provide power for the first conveying device 4. A second motor 10 is fixedly connected inside the support frame 1. The second motor 10 is used to provide power for the second conveying device 11.

[0048] The first motor 9 can provide power for the first conveying device 4, which is convenient for the first conveying device 4 to operate. The second motor 10 can provide power for the second conveying device 11, which is convenient for the second conveying device 11 to operate.

[0049] First protective shells 3 are fixedly connected to both sides of the support frame 1. A controller 20 is installed inside the first protective shell 3 on the right side. The controller 20 is electrically connected to the first motor 9 and the second motor 10.

[0050] Under the action of the first protective shell 3, the protection of the user can be improved, preventing the equipment from causing harm to the user during operation. Then, under the action of the controller 20, the operation of the overall equipment can be controlled, improving the operation performance of the overall equipment.

[0051] As a further implementation of the above technical solution:

[0052] The first conveying device 4 includes a fixed frame 401, a first rotating roller 402 and a first conveyor belt 403. The fixed frame 401 is fixedly connected inside the support frame 1. The first rotating roller 402 is rotatably connected inside the support frame 1 and the fixed frame 401. The first rotating rollers 402 are connected by a first conveyor belt 403. The first motor 9 is connected to the first rotating roller 402 through a sprocket transmission mechanism.

[0053] When the first motor 9 is turned on, the first rotating roller 402 can be rotated under the action of the sprocket transmission mechanism. As the first rotating roller 402 rotates, the first conveyor belt 403 can be driven to move. Then, under the action of the first conveyor belt 403, the instruction manual to be folded between the first conveyor belts 403 can be conveyed.

[0054] As a further implementation of the above technical solution:

[0055] A support rod 12 is fixedly connected to the lower end of the fixed frame 401. One end of the support rod 12 away from the fixed frame 401 is fixedly connected to the support frame 1.

[0056] Under the action of the support rod 12, the support of the fixed frame 401 can be achieved, effectively preventing the fixed frame 401 from deforming during use.

[0057] As a further implementation of the above technical solution:

[0058] The positioning mechanism 14 includes a first support frame 1401, a connecting frame 1402, a cylinder 1403, a moving rod 1405 and a positioning block 1406. The upper end of the fixed plate 13 is fixedly connected to the first support frame 1401. The side end of the first support frame 1401 is fixedly connected to the connecting frame 1402. The end of the connecting frame 1402 away from the first support frame 1401 is fixedly connected to the cylinder 1403. The output end of the cylinder 1403 is fixedly connected to the moving rod 1405. The moving rod 1405 penetrates through the first support frame 1401. The circumferential surface of the moving rod 1405 is fixedly connected to the positioning block 1406. Four pressing rollers 16 are provided. The two pressing rollers 16 at the rear end are rotatably connected to the first support frame 1401.

[0059] By turning on the cylinder 1403, the moving rod 1405 can be driven to move at this time. With the movement of the moving rod 1405, under the action of the positioning block 1406, the two sides of the instruction manual can be made neat, so that when the instruction manual is folded, it can be perfectly folded in half.

[0060] As a further implementation of the above technical solution:

[0061] A material guiding plate 17 is fixedly connected inside the first support frame 1401. One end of the material guiding plate 17 close to the pressing roller 16 is provided with a downward arc. During operation, under the action of the material guiding plate 17, the instruction manual on the material guiding plate 17 can be supported, facilitating the folding of the instruction manual.

[0062] As a further implementation of the above technical solution:

[0063] The downward pressing mechanism 7 includes a second support frame 701, a fixed frame 702, a disc 703, a linkage rod 704, a slider 705, a guide rod 706, a support plate 707, a parallel knife body 708, a mounting plate 709 and a third motor 710. The upper end of the support frame 1 is fixedly connected to the second support frame 701. The upper end of the second support frame 701 is fixedly connected to the fixed frame 702. The mounting plate 709 is slidably connected inside the fixed frame 702. A third motor 710 is fixedly connected to the left side of the mounting plate 709. The output end of the third motor 710 is fixedly connected to the disc 703. The end of the disc 703 away from the mounting plate 709 is rotatably connected to the linkage rod 704. The end of the linkage rod 704 away from the disc 703 is rotatably connected to the slider 705. The rear end of the slider 705 is fixedly connected to the parallel knife body 708. A support plate 707 is fixedly connected inside the second support frame 701. The lower end of the support plate 707 is fixedly connected to the guide rod 706. The guide rod 706 is slidably connected to the slider 705.

[0064] When the instruction manual reaches the lower end of the parallel knife body 708, the third motor 710 is started at this time. Under the action of the third motor 710, the disc 703 can be driven to rotate. The rotation of the disc 703 can provide power for the movement of the parallel knife body 708 under the action of the connecting rod 704 and the slider 705. Since the connection point of the connecting rod 704 and the disc 703 is not located at the center of the disc 703, the rotation of the disc 703 can drive the parallel knife body 708 to move up and down. When the parallel knife body 708 moves down, it can fold the instruction manual downward from the middle, so as to achieve the purpose of folding the instruction manual, thereby improving the folding effect of the instruction manual.

[0065] As a further implementation of the above technical solution:

[0066] The upper end of the fixing frame 702 is slidably connected with an adjusting handle 15. The lower end of the adjusting handle 15 is fixedly connected with a mounting plate 709. Both sides of the mounting plate 709 are fixed in the fixing frame 702 by screws. During operation, the position of the mounting plate 709 is adjusted under the action of the adjusting handle 15 to facilitate the installation of the connecting rod 704. After the connecting rod 704 is installed, the mounting plate 709 can be fixed in the fixing frame 702 by tightening the screws.

[0067] As a further implementation of the above technical solution:

[0068] The second conveying device 11 includes a second rotating roller 1101 and a second conveyor belt 1102. The second rotating roller 1101 is rotatably connected in the support frame 1. The second rotating rollers 1101 are connected by a second conveyor belt 1102. The second motor 10 is connected to the second rotating roller 1101 through a sprocket transmission mechanism. During operation, by starting the second motor 10, the second rotating roller 1101 can be driven to rotate under the action of the second motor 10. The rotation of the second rotating roller 1101 causes the second conveyor belt 1102 to move. Under the action of the second conveyor belt 1102, it is convenient to convey the folded instruction manual, thereby improving the work efficiency.

[0069] As a further implementation of the above technical solution:

[0070] The lifting mechanism 5 includes a moving rack 501, a limit plate 502, a rotating shaft 503, a limit wheel 504, a gear 505, a handle 506, a locking block 507 and a locking rod 508. The lower end of the support frame 1 is fixedly connected to the limit plate 502. The side end of the limit plate 502 is fixedly connected with a second protective shell 6. The rotating shaft 503 is rotatably connected inside the limit plate 502. Both ends of the rotating shaft 503 penetrate through the limit plate 502. The circumferential surface of the rotating shaft 503 is fixedly connected with the gear 505. The gear 505 meshes with the moving rack 501. The moving rack 501 is slidably connected with the limit plate 502. The side end of the limit plate 502 is rotatably connected with the limit wheel 504. The limit wheel 504 is located on both sides of the moving rack 501. The right end of the rotating shaft 503 is fixedly connected with the handle 506. There are two limit plates 502, and the limit plates 502 are distributed on both sides of the lower end of the support frame 1. The inner side of the limit plate 502 on the right side is fixedly connected with the locking block 507. The rotating shaft 503 is located inside the locking block 507. The locking rod 508 is threadedly connected inside the locking block 507. The lower end of the moving rack 501 is fixedly connected with a moving frame 2. The lower end of the moving frame 2 is fixedly connected with a universal wheel.

[0071] When the equipment is being coordinated, rotate the handle 506. Under the action of the gear 505, the moving rack 501 can move up and down. The up and down movement of the moving rack 501 can change the overall height of the equipment, so as to facilitate the connection between the equipment and improve the installation efficiency between the equipment.

[0072] As a further implementation of the above technical solution:

[0073] Both sides of the lower end of the moving frame 2 are rotatably connected with nitrogen spring telescopic rods 19. The ends of the nitrogen spring telescopic rods 19 away from the moving frame 2 are rotatably connected with the support frame 1.

[0074] Under the action of the nitrogen spring telescopic rods 19, the support frame 1 can be supported, so as to prevent the support frame 1 from shifting.

[0075] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A parallel knife mechanism for folding an instruction manual, comprising a support frame (1), characterized in that: A first conveying device (4) is arranged at the front side of the upper end of the support frame (1), a second conveying device (11) is arranged inside the rear end of the support frame (1), a pressing mechanism (7) is arranged at the upper end of the support frame (1), the lower end of the support frame (1) is connected with a moving frame (2) through a lifting mechanism (5), and a box body (8) is fixedly connected to the upper end of the moving frame (2). A fixing plate (13) is fixedly connected inside the support frame (1), a positioning mechanism (14) is arranged at the upper end of the fixing plate (13), a connecting rod (18) is fixedly connected to the front end of the fixing plate (13), a pressing roller (16) is rotatably connected inside the connecting rod (18), and the pressing roller (16) is connected to the first conveying device (4) through a chain wheel transmission mechanism. The first conveying device (4) includes a fixing frame (401), a first rotating roller (402) and a first conveyor belt (403). The positioning mechanism (14) includes a first support frame (1401), a connecting frame (1402), a cylinder (1403), a moving rod (1405) and a positioning block (1406). The first support frame (1401) is fixedly connected to the upper end of the fixing plate (13), the connecting frame (1402) is fixedly connected to the side end of the first support frame (1401), the cylinder (1403) is fixedly connected to the end of the connecting frame (1402) far away from the first support frame (1401), the output end of the cylinder (1403) is fixedly connected to the moving rod (1405), the moving rod (1405) penetrates through the first support frame (1401), the positioning block (1406) is fixedly connected to the circumferential surface of the moving rod (1405), there are four pressing rollers (16), and the two pressing rollers (16) at the rear end are rotatably connected to the first support frame (1401). A first motor (9) is fixedly connected to the front end of the support frame (1), and the first motor (9) is used to provide power for the first conveying device (4). A second motor (10) is fixedly connected inside the support frame (1), and the second motor (10) is used to provide power for the second conveying device (11). First protective shells (3) are fixedly connected to both sides of the support frame (1), a controller (20) is installed inside the first protective shell (3) on the right side, and the controller (20) is electrically connected to the first motor (9) and the second motor (10).

2. The parallel knife mechanism for folding a specification according to claim 1, wherein: The fixing frame (401) is fixedly connected inside the support frame (1), the first rotating roller (402) is rotatably connected inside the support frame (1) and the fixing frame (401), the first rotating rollers (402) are connected through a first conveyor belt (403), and the first motor (9) is connected to the first rotating roller (402) through a chain wheel transmission mechanism.

3. The parallel knife mechanism for folding a specification according to claim 2, characterized in that: A support rod (12) is fixedly connected to the lower end of the fixing frame (401), and a fixed connection is made between the end of the support rod (12) far away from the fixing frame (401) and the support frame (1).

4. The parallel knife mechanism for folding a specification according to claim 3, characterized in that: A material guiding plate (17) is fixedly connected inside the first support frame (1401), and one end of the material guiding plate (17) close to the extrusion roller (16) is provided with a downward arc.

5. A parallel knife mechanism for folding a specification according to claim 1, characterized in that: The downward pressing mechanism (7) includes a second support frame (701), a fixing frame (702), a disc (703), a connecting rod (704), a slider (705), a guiding rod (706), a support plate (707), a parallel knife body (708), a mounting plate (709), and a third motor (710). The upper end of the support frame (1) is fixedly connected to the second support frame (701). The upper end of the second support frame (701) is fixedly connected to the fixing frame (702). The mounting plate (709) is slidably connected inside the fixing frame (702). The left side of the mounting plate (709) is fixedly connected to the third motor (710). The output end of the third motor (710) is fixedly connected to the disc (703). One end of the disc (703) away from the mounting plate (709) is rotatably connected to the connecting rod (704). One end of the connecting rod (704) away from the disc (703) is rotatably connected to the slider (705). The rear end of the slider (705) is fixedly connected to the parallel knife body (708). A support plate (707) is fixedly connected inside the second support frame (701). The lower end of the support plate (707) is fixedly connected to the guiding rod (706). The guiding rod (706) is slidably connected to the slider (705).

6. A parallel knife mechanism for folding a specification according to claim 5, characterized in that: An adjusting handle (15) is slidably connected to the upper end of the fixing frame (702). The lower end of the adjusting handle (15) is fixedly connected to the mounting plate (709). Both sides of the mounting plate (709) are fixed inside the fixing frame (702) by screws.

7. A parallel knife mechanism for folding a specification according to claim 1, characterized in that: The second conveying device (11) includes a second rotating roller (1101) and a second conveyor belt (1102). The second rotating roller (1101) is rotatably connected inside the support frame (1). The second rotating rollers (1101) are connected by the second conveyor belt (1102). The second motor (10) is connected to the second rotating roller (1101) through a sprocket transmission mechanism.

8. A parallel knife mechanism for folding a specification according to claim 1, characterized in that: The lifting mechanism (5) includes a moving rack (501), a limit plate (502), a rotating shaft (503), a limit wheel (504), a gear (505), a handle (506), a locking block (507) and a locking rod (508). The lower end of the support frame (1) is fixedly connected to the limit plate (502). The side end of the limit plate (502) is fixedly connected to a second protective shell (6). The rotating shaft (503) is rotatably connected inside the limit plate (502). Both ends of the rotating shaft (503) penetrate through the limit plate (502). The circumferential surface of the rotating shaft (503) is fixedly connected to the gear (505). The gear (505) meshes with the moving rack (501). The moving rack (501) is slidably connected between the limit plate (502). The side end of the limit plate (502) is rotatably connected to the limit wheel (504). The limit wheel (504) is located on both sides of the moving rack (501). The right end of the rotating shaft (503) is fixedly connected to the handle (506). There are two limit plates (502), and the limit plates (502) are distributed on both sides of the lower end of the support frame (1). The inner side of the limit plate (502) on the right side is fixedly connected to the locking block (507). The rotating shaft (503) is located inside the locking block (507). The locking rod (508) is threadedly connected inside the locking block (507). The lower end of the moving rack (501) is fixedly connected to a moving frame (2). The lower end of the moving frame (2) is fixedly connected to a universal wheel.

9. A parallel knife mechanism for folding a specification according to claim 1, characterized in that: Both sides of the lower end of the moving frame (2) are rotatably connected to nitrogen spring telescopic rods (19). One end of the nitrogen spring telescopic rod (19) away from the moving frame (2) is rotatably connected to the support frame (1).

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