Scratch Module and Folder

Abstract

The present invention discloses a scoring module and a folding machine, which relate to the field of folding equipment. The scoring module includes a frame, a cutter assembly and a first driving device. The frame is provided with a first guide rail, a first baffle and a second baffle arranged at intervals. A conveying channel is formed between the first baffle and the second baffle. Paper is conveyed through the conveying channel, and stops moving when the paper reaches a predetermined position. The cutter assembly moves along the first guide rail under the drive of the first driving device. Before the cutter contacts the photo paper, the cutter protrudes and moves toward the direction close to the conveying channel. Driven by the cutter assembly, the cutter scratches the paper, so that a groove is formed in the paper. With this solution, the paper is folded at the groove, which can reduce the occurrence of warping, wrinkles, white marks, etc. on the paper.

Description

Technical Field

[0001] The present invention relates to the field of folding equipment, and in particular to a scratch module and a folding machine. Background Art

[0002] Paper materials such as leaflets and photographic papers are usually folded by a folding machine after printing. Some paper materials need to be covered with a film with slightly higher hardness. For example, a crystal film is covered on a photographic paper to play roles such as protection and improvement of aesthetics. It is difficult to fold the photographic paper covered with the crystal film, and it is easy to cause situations such as warping, wrinkling, and white marks at the folding position. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a scratch module, at the position where folding is required, a cutting groove is scratched by a tool, and the paper material is folded at the cutting groove, which can reduce the occurrence of situations such as warping, wrinkling, and white marks of the paper material.

[0004] The present invention also provides a folding machine with the above scratch module.

[0005] The scratch module according to the first aspect embodiment of the present invention includes:

[0006] A frame, provided with a first guide rail, a first baffle and a second baffle arranged at intervals, a conveying channel for conveying the paper material is formed between the first baffle and the second baffle;

[0007] A cutter assembly, including a mounting seat, a second guide rail, a tool and a guide seat, the mounting seat is slidably arranged on the first guide rail, the mounting seat is provided with the second guide rail, the tool is mounted on the guide seat, the guide seat is slidably arranged on the second guide rail, and the guide seat can drive the tool to move in a direction close to or away from the conveying channel;

[0008] A first driving device, drivingly connected to the cutter assembly to drive the cutter assembly to move along the first guide rail.

[0009] The scratch module according to the embodiment of the present invention has at least the following beneficial effects:

[0010] The paper material is conveyed through the conveying channel between the first baffle and the second baffle, and stops moving when it reaches a predetermined position. The cutter assembly moves along the first guide rail under the drive of the first driving device, and before the tool contacts the photographic paper, the tool protrudes and moves in a direction close to the conveying channel. Driven by the cutter assembly, the tool scratches the paper material, so that a cutting groove is formed on the paper material. By adopting this solution, the paper material is folded at the cutting groove, which can reduce the occurrence of situations such as warping, wrinkling, and white marks of the paper material.

[0011] According to some embodiments of the present invention, the cutter assembly further includes two rollers. Along the extending direction of the first guide rail, the two rollers are respectively located on both sides of the cutter and are rotatably connected to the guide seat. The rollers can abut against the paper material, and the upper end of the cutter protrudes above the upper end of the rollers.

[0012] According to some embodiments of the present invention, the scoring module further includes a second driving device connected to the frame. The second driving device is used to drive the guide seat to move away from the conveying channel.

[0013] According to some embodiments of the present invention, the cutter assembly further includes an elastic member. The elastic member is connected between the mounting seat and the guide seat, and the elastic member is used to provide an elastic force that makes the cutter move towards the conveying channel.

[0014] According to some embodiments of the present invention, the mounting seat and the guide seat are respectively provided with a first connecting portion and a second connecting portion. The elastic member is a tension spring. One end of the tension spring is connected to the first connecting portion, and the other end of the tension spring is connected to the second connecting portion.

[0015] According to some embodiments of the present invention, the guide seat is provided with an adjustment groove, and the cutter is provided with a long strip-shaped mounting hole. The cutter is disposed in the adjustment groove and is fixedly connected to the guide seat by a fastener passing through the mounting hole. A gasket can be arranged on the bottom wall of the adjustment groove to adjust the protruding distance of the cutter.

[0016] According to some embodiments of the present invention, the frame is provided with a limit sensor. The limit sensor is provided with an induction groove, and a limit plate is fixedly arranged on the mounting seat. When the limit plate moves along the first direction to the induction groove, the first driving device can drive the cutter assembly to move along the second direction, and the second direction is opposite to the first direction.

[0017] According to some embodiments of the present invention, the first driving device includes a motor, a transmission belt, and a rotating wheel. The rotating wheel and the motor are spaced apart, and the rotating wheel is rotatably connected to the frame. The transmission belt is connected to the output end of the motor and the rotating wheel, and the mounting seat is fixedly connected to the transmission belt.

[0018] According to some embodiments of the present invention, the second baffle includes a first plate segment and a second plate segment that are sequentially arranged at intervals along the paper material conveying direction. An avoidance groove is formed between the first plate segment and the second plate segment. The avoidance groove is used to expose the paper material so that the cutter can contact the paper material through the avoidance groove. One end of the second plate segment close to the first plate segment is inclined towards the cutter assembly.

[0019] A folding machine according to an embodiment of the second aspect of the present invention comprises the scratching module described in the above embodiment.

[0020] The folding machine according to the embodiment of the present invention has at least the following beneficial effects:

[0021] By adopting the scratching module of the first aspect, the paper is transported through the conveying channel between the first baffle and the second baffle, and stops moving when the paper reaches a predetermined position. The cutter assembly moves along the first guide rail under the drive of the first driving device, and before the cutter contacts the photo paper, the cutter protrudes and moves toward the conveying channel. Driven by the cutter assembly, the cutter scratches the paper, so that a groove is formed on the paper. With this solution, the paper is folded at the groove, which can reduce the occurrence of warping, wrinkles, white marks, etc. on the paper.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 It is a structural schematic diagram of a folding machine according to an embodiment of the present invention;

[0025] Figure 2 is a schematic structural diagram of a scratch module according to an embodiment of the present invention;

[0026] Figure 3 is a side view of a scratch module of an embodiment of the present invention with some structures hidden;

[0027] Figure 4 It is a partial structural schematic diagram of a scratch module according to an embodiment of the present invention;

[0028] Figure 5 is a schematic structural diagram of a cutter assembly according to an embodiment of the present invention;

[0029] Figure 6 yes Figure 5 A schematic structural diagram of the cutter assembly from another perspective;

[0030] Figure 7 is an exploded view of a cutter assembly according to an embodiment of the present invention;

[0031] Figure 8 is a cross-sectional view of a folding machine according to an embodiment of the present invention;

[0032] Figure 9 It is a cross-sectional view of an indentation module according to another embodiment of the present invention.

[0033] Reference numerals:

[0034] Scratch module 1000;

[0035] Frame 100; Photo paper 101; First guide rail 110; First baffle 120; Second baffle 130; Conveyor channel 131; First plate section 132; Second plate section 133; Avoidance groove 134; First conveyor roller group 140; Limit sensor 150; Induction groove 151;

[0036] Cutting tool assembly 200; Mounting seat 210; First connecting portion 211; Second guide rail 220; Cutting tool 230; Mounting hole 231; Guide seat 240; Adjustment groove 241; Second connecting portion 242; Roller 250; Spacer 260; Limit plate 270; Elastic member 280;

[0037] First driving device 300; Motor 310; Transmission belt 320; Rotating wheel 330;

[0038] Second driving device 400; First cylinder 410; Driving plate 420;

[0039] Folding machine 2000;

[0040] Indentation module 2100; Indentation knife 2110; Second cylinder 2120; Second conveyor roller group 2130; Crankshaft 2140; Support column 2150;

[0041] Folding module 2200; First folding roller group 2210; Second folding roller group 2220. Detailed implementation manners

[0042] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and 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 thus should not be construed as a limitation to the present invention.

[0044] In the description of the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceeding", etc. are understood not to include the recited number, and "above", "below", "within", etc. are understood to include the recited number. If "first" and "second" are described, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0045] In the description of the present invention, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0046] Referring to Figure 1 and Figure 2 As shown, a scratch module 1000 of an embodiment of the present invention can be applied to a folder 2000, or can be applied to devices such as a laminating machine and a case-making machine. The scratch module 1000 can scratch a cut groove on the paper material to facilitate folding of the paper material at the cut groove. For example, the scratch module 1000 scratches a cut groove on the crystal film of the photographic paper 101. Among them, the paper material can be a thin sheet made of plant fiber, cloth, plastic, etc. For the convenience of explanation, in all subsequent embodiments, the photographic paper 101 provided with a crystal film is taken as an example for description.

[0047] Referring to Figure 3 and Figure 4 As shown, the scratch module 1000 of the embodiment of the present invention includes a frame 100, a cutter assembly 200 and a first driving device 300. The frame 100 is provided with a first guide rail 110, and the first guide rail 110 extends along a direction perpendicular to the feeding direction of the paper material, for example, extends along the left-right direction. The frame 100 is further provided with a first baffle 120 and a second baffle 130, and the first baffle 120 and the second baffle 130 can be arranged at intervals in the up-down direction, and the first baffle 120 is located above the second baffle 130. A conveying channel 131 is formed between the first baffle 120 and the second baffle 130, and the conveying channel 131 is used for conveying the photographic paper 101. The frame 100 is further provided with a first conveying roller group 140 at the front end of the conveying channel 131, and the first conveying roller group 140 includes two parallel conveying rollers, and the rotation of the conveying rollers makes the photographic paper 101 move into the conveying channel 131.

[0048] Referring to Figure 5 and Figure 6As shown, the cutter assembly 200 includes a mounting seat 210, a second guide rail 220, a cutter 230 and a guide seat 240. The cutter assembly 200 can be arranged below the first baffle 120, the mounting seat 210 is slidably arranged on the first guide rail 110, and the mounting seat 210 is provided with a second guide rail 220, and the extension direction of the second guide rail 220 is perpendicular to the first guide rail 110, for example, the second guide rail 220 is extended in the up-down direction. The cutter 230 is mounted on the guide seat 240, and the guide seat 240 is slidably arranged on the second guide rail 220. The guide seat 240 can drive the cutter 230 to move in a direction close to or away from the conveying channel 131, for example, the guide seat 240 drives the cutter 230 to move in the up-down direction. The first driving device 300 can drive the cutter assembly 200 to move along the first guide rail 110, so that the cutter 230 passes through the crystal film of the photographic paper 101.

[0049] The side of the photo paper 101 provided with the crystal film is arranged downward, and the photo paper 101 is transported through the transport channel 131 between the first baffle 120 and the second baffle 130. When the photo paper 101 reaches a predetermined position, the first transport roller group 140 stops transporting the photo paper 101. The cutter assembly 200 moves along the first guide rail 110 under the drive of the first driving device 300, and before the cutter 230 contacts the crystal film, the cutter 230 moves upward. Driven by the cutter assembly 200, the cutter 230 cuts across the crystal film, so that the crystal film forms a cut groove extending in the left-right direction. With this solution, the photo paper 101 is folded at the cut groove, which can reduce the occurrence of warping, wrinkles, white marks, etc. on the photo paper 101.

[0050] It should be noted that the photo paper 101 is prone to bending due to its own weight, which in turn affects the depth of the cut groove, and may cause unfavorable situations such as cutting the photo paper 101 or cutting the groove too shallow. Figure 5 As shown, in the embodiment of the present invention, the cutter assembly 200 further includes two rollers 250. Along the extension direction of the first guide rail 110, the two rollers 250 are respectively located on both sides of the cutter 230 and are rotatably connected to the guide seat 240. That is, the two rollers 250 are respectively located on the left and right sides of the cutter 230, and the upper end of the cutter 230 protrudes from the upper end of the rollers 250. The distance of the cutter 230 protruding from the rollers 250 determines the depth of the cut groove. Before the cutter 230 passes through the crystal film, one of the rollers 250 first abuts against the photo paper 101, so that the photo paper 101 abuts against the first baffle 120, thereby ensuring the flatness of the photo paper 101 at the position where the cut groove needs to be cut. At the same time, the rollers 250 limit the depth of the cut groove cut by the cutter 230, effectively reducing the situation where the cut groove has different depths, thereby ensuring that the photo paper 101 will not be cut, and improving the reliability of the scratch module 1000. It should be noted that the roller 250 can be made of a bearing, and a suitable solution can be selected according to actual conditions.

[0051] It can be understood that the cutter 230 can reciprocate in the left-right direction to cut the crystal films of different photo papers 101, that is, move from left to right to cut the crystal film of the previous photo paper 101, and move from right to left to cut the crystal film of the next photo paper 101, so as to improve work efficiency. In another embodiment, the cutter 230 is provided with a one-way blade, that is, it can only cut the crystal film when moving from left to right. And the cutter assembly 200 needs to move from right to left back to the initial position to continue. In order that the cutter 230 does not touch the photo paper 101 when the cutter assembly 200 moves to the initial position, referring to Figure 3 As shown, in the embodiment of the present invention, the scratch module 1000 further includes a second driving device 400 connected to the frame 100. The second driving device 400 is used to drive the guide seat 240 to move away from the conveying channel 131, for example, drive the guide seat 240 to move downward, so as to drive the cutter 230 to move downward, so as to prevent the cutter 230 from touching the photo paper 101 during the process of returning to the initial position. Therefore, the structural design of the scratch module 1000 is reasonable and has high reliability.

[0052] Continue to refer to Figure 3 As shown, in the embodiment of the present invention, the second driving device 400 includes a first air cylinder 410 and a driving plate 420. Two first air cylinders 410 can be provided and are arranged at intervals in the left-right direction. The driving plate 420 is strip-shaped and extends in the left-right direction. The driving plate 420 is connected to the output end of the first air cylinder 410, and the driving plate 420 is located below the first air cylinder 410. When the first air cylinder 410 drives the driving plate 420 to move downward, the driving plate 420 can abut against the guide seat 240, so as to drive the guide seat 240 to move downward.

[0053] Refer to Figure 5 and Figure 6 As shown, in the embodiment of the present invention, the cutter assembly 200 further includes an elastic member 280. The elastic member 280 is connected to the mounting seat 210 and the guide seat 240. The elastic member 280 is used to provide an elastic force to drive the cutter 230 to approach the conveying channel 131, that is, the elasticity of the elastic member 280 causes the cutter 230 to move upward. Therefore, during the process of the cutter 230 passing over the photo paper 101, due to the elastic force of the elastic member 280, the roller 250 can always be in contact with the photo paper 101, so as to reduce the situation that the roller 250 is separated from the photo paper 101 due to manufacturing precision, vibration, etc., and can further reduce the situation that the cutting grooves are of different depths, and improve the reliability of the cutter assembly 200.

[0054] Refer to Figure 6As shown, in an embodiment of the present invention, the elastic member 280 can be a tension spring. A first connecting portion 211 is provided on the mounting base 210, and a second connecting portion 242 is provided on the guiding base 240. The two ends of the tension spring are respectively connected to the first connecting portion 211 and the second connecting portion 242. The tension spring can provide an elastic force for the upward movement of the cutting tool 230, and the structure of the tension spring is simple and convenient to install. In another embodiment of the present invention, the elastic member 280 can also be a spring, which is arranged at the upper end of the mounting base 210 and located between the mounting base 210 and the guiding base 240, and can also provide an elastic force for the upward movement of the cutting tool 230. The elastic member 280 can also be an elastic rubber member, a silica gel member, etc., and a suitable solution is selected according to the actual situation.

[0055] Referring to Figure 7 As shown, in an embodiment of the present invention, the guiding base 240 is provided with an adjustment groove 241, the cutting tool 230 is provided with a mounting hole 231, and the mounting hole 231 is in a long strip shape. A plurality of mounting holes 231 can be provided and extend in the up and down direction. The cutting tool 230 is arranged in the adjustment groove 241, and the cutting tool 230 is fixedly connected to the guiding base 240 through a fastener passing through the mounting hole 231. A gasket 260 can be arranged on the bottom wall of the adjustment groove 241. The gasket 260 can be one or more, and the number of the gaskets 260 is selected according to the actual situation to adjust the protruding distance of the cutting tool 230, so as to adjust the depth of the cutting groove.

[0056] Referring to Figure 3 As shown, in an embodiment of the present invention, the frame 100 is provided with a limit sensor 150, and the limit sensor 150 is provided with an induction groove 151. A limit plate 270 is provided on the mounting base 210. When the cutting tool assembly 200 drives the limit plate 270 to move along the first direction to the induction groove 151, the limit sensor 150 sends a signal, and the first driving device 300 is controlled through a controller, so that the cutting tool assembly 200 moves in the opposite direction, that is, the second direction. The first direction can be the direction from left to right, and the second direction is the direction from right to left. The setting of the limit sensor 150 can limit the moving range of the cutting tool assembly 200 to avoid the situation of overtravel.

[0057] Referring to Figure 4 As shown, in an embodiment of the present invention, the first driving device 300 includes a motor 310, a transmission belt 320 and a rotating wheel 330. The rotating wheel 330 and the motor 310 are arranged at intervals in the left and right direction. The rotating wheel 330 is rotatably connected to the frame 100, and the transmission belt 320 is connected to the output end of the motor 310 and the transmission wheel. The mounting base 210 is fixedly connected to the transmission belt 320. Therefore, when the motor 310 drives the transmission belt 320 to rotate, the transmission belt 320 can drive the cutting tool assembly 200 to move along the first guide rail 110, so that the cutting tool 230 can slide across the crystal film.

[0058] Referring toFigure 3 As shown, in the embodiment of the present invention, the second baffle 130 includes a first plate section 132 and a second plate section 133 which are arranged in sequence along the transport direction of the photo paper 101, and the second plate section 133 is located behind the first plate section 132. An escape groove 134 is formed between the first plate section 132 and the second plate section 133, and the escape groove 134 is used to expose the photo paper 101. The cutter 230 contacts the photo paper 101 through the escape groove 134, so that the cutter 230 can easily cut through the photo paper 101. The front end of the second plate section 133 is inclined toward the cutter assembly 200, that is, the front end of the second plate section 133 is inclined downward. It can be understood that one end of the photo paper 101 will bend downward under the influence of its own weight when passing through the escape groove 134. Therefore, the front end of the second plate section 133 is inclined, so that the photo paper 101 can smoothly contact the second plate section 133 and continue to move along the conveying channel 131, instead of falling out of the conveying channel 131 through the escape groove 134.

[0059] A folding machine 2000 according to an embodiment of the present invention comprises the scratching module 1000 according to the above embodiment. The folding machine 2000 according to the embodiment of the present invention adopts the scratching module 1000 according to the above embodiment, and the photo paper 101 is conveyed through the conveying channel 131 between the first baffle 120 and the second baffle 130, and stops moving when the photo paper 101 reaches a predetermined position. The cutter assembly 200 moves along the first guide rail 110 under the drive of the first driving device 300, and the cutter 230 moves upward before the cutter 230 contacts the crystal film. Driven by the cutter assembly 200, the cutter 230 scratches the crystal film, so that the crystal film forms a cut groove extending in the left-right direction. With this solution, the photo paper 101 is folded at the cut groove, which can reduce the occurrence of warping, wrinkles, white marks, etc. on the photo paper 101.

[0060] Reference Figure 8 As shown, in the embodiment of the present invention, the folder 2000 further includes a creasing module 2100 and a folding module 2200, and the scratching module 1000, the creasing module 2100 and the folding module 2200 are sequentially arranged in the front-to-back direction. The scratching module 1000 is used to cut a groove on the crystal film of the photo paper 101; the creasing module 2100 is used to squeeze the side of the photo paper 101 away from the groove, so that the photo paper 101 has a creasing; and the folding module 2200 is used to fold the photo paper 101.

[0061] Continue to refer to Figure 8As shown in the figure, in an embodiment of the present invention, the indentation module 2100 includes an indentation knife 2110, a second cylinder 2120, a support column 2150, and a second conveying roller group 2130. The second cylinder 2120 is used to drive the indentation knife 2110 to move in the up and down direction. The support column 2150 is located below the indentation knife 2110, and the support column 2150 is provided with a knife groove to facilitate the photo paper 101 to extrude an indentation. The second conveying roller group 2130 is located in front of the indentation knife 2110. The second conveying roller group 2130 is used to convey the photo paper 101 to below the indentation knife 2110 and stop driving after determining the position of the photo paper 101 through a sensor. The second cylinder 2120 controls the indentation knife 2110 to move downward, extruding a part of the structure of the photo paper 101 into the knife groove, so that the photo paper 101 forms a pressing groove. Among them, the support column 2150 is in the shape of a square column, and different depths of knife grooves can be provided on the four side surfaces of the support column 2150. By rotating the support column 2150, different knife grooves can be replaced to adapt to photo papers 101 of different materials.

[0062] Referring to Figure 9 As shown in the figure, in another embodiment of the present invention, in addition to driving the indentation knife 2110 to move through the second cylinder 2120, the indentation knife 2110 can also be driven by a crankshaft 2140. For example, the crankshaft 2140 can drive the indentation knife 2110 to move in the up and down direction through the drive of a motor. Compared with the scheme using the second cylinder 2120, the movement speed of the indentation knife 2110 is higher and the working efficiency is higher when using the crankshaft 2140. Select a suitable drive scheme according to the actual situation.

[0063] Referring to Figure 8 As shown in the figure, in an embodiment of the present invention, the folding module 2200 includes a first folding roller group 2210 and a second folding roller group 2220. The first folding roller group 2210 and the second folding roller group 2220 are rotatably connected to the frame 100. After the indentation is formed on the photo paper 101, under the cooperation of the first folding roller group 2210 and the second folding roller group 2220, the photo paper 101 can be folded along the indentation and finally enter the next process.

[0064] Since the folding machine 2000 adopts all the technical solutions of the scratch module 1000 in the above embodiment, it has at least all the beneficial effects brought by the technical solutions in the above embodiment, which will not be elaborated here.

[0065] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. Scratch module, characterized in that, include: A frame, provided with a first guide rail, a first baffle and a second baffle arranged at intervals, wherein the first baffle and the second baffle are arranged at intervals in the up-down direction, the first baffle is located above the second baffle, and a conveying channel for conveying paper is formed between the first baffle and the second baffle; A cutter assembly is arranged below the first baffle, the cutter assembly comprises a mounting seat, a second guide rail, a cutter and a guide seat, the mounting seat is slidably arranged on the first guide rail, the mounting seat is provided with the second guide rail, the cutter is mounted on the guide seat, the guide seat is slidably arranged on the second guide rail, the guide seat can drive the cutter to move in a direction close to or away from the conveying passage, the cutter assembly also comprises two rollers, along the extension direction of the first guide rail, the two rollers are respectively located on both sides of the cutter, and are rotatably connected to the guide seat, the rollers can abut against the paper material, and the upper end of the cutter protrudes from the upper end of the rollers; The second baffle comprises a first plate segment and a second plate segment which are sequentially arranged at intervals along the paper conveying direction, an escape groove is formed between the first plate segment and the second plate segment, the escape groove is used to expose the paper so that the cutter can contact the paper through the escape groove, and an end of the second plate segment close to the first plate segment is inclined toward the cutter assembly; A first driving device is drivingly connected to the cutter assembly to drive the cutter assembly to move along the first guide rail; A second driving device connected to the frame, the second driving device is used to drive the guide seat to move in a direction away from the conveying channel; Wherein, the cutter assembly moves along the first guide rail under the drive of the first driving device, and before the cutter contacts the paper, the cutter protrudes and moves toward the direction close to the conveying channel. Driven by the cutter assembly, the cutter cuts through the paper to form a cut groove on the paper.

2. The scratch module according to claim 1, wherein The cutter assembly also includes an elastic member, which is connected to the mounting seat and the guide seat, and is used to provide an elastic force that causes the cutter to move toward the conveying channel.

3. The scratch module according to claim 2, characterized in that, The mounting seat and the guide seat are respectively provided with a first connecting portion and a second connecting portion, the elastic member is a tension spring, one end of the tension spring is connected to the first connecting portion, and the other end of the tension spring is connected to the second connecting portion.

4. The scratch module according to claim 1, characterized in that, The guide seat is provided with an adjustment groove, and the tool is provided with an elongated mounting hole. The tool is arranged in the adjustment groove and is penetrated through the mounting hole by a fastener so that the tool and the guide seat are fixedly connected. A gasket can be provided on the bottom wall of the adjustment groove to adjust the protruding distance of the tool.

5. The scratch module according to claim 1, characterized in that, The frame is provided with a limit sensor, the limit sensor is provided with a sensing slot, and the mounting seat is fixed with a limit plate. When the limit plate moves along a first direction to the sensing slot, the first driving device can drive the cutter assembly to move along a second direction, and the second direction is opposite to the first direction.

6. The scratch module according to claim 1, characterized in that, The first driving device includes a motor, a transmission belt, and a rotating wheel. The rotating wheel and the motor are arranged at intervals, and the rotating wheel is rotatably connected to the frame. The transmission belt is connected to the output end of the motor and the rotating wheel, and the mounting seat is fixedly connected to the transmission belt.

7. Folder, characterized in that, It includes the scratch module according to any one of claims 1 to 6.

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