Cutting knife group for transversely cutting carbon crystal plate

Abstract

The utility model relates to the technical field of plate production equipment, in particular to a cutting knife tackle for transversely cutting a carbon crystal plate, which comprises a knife rest, a plurality of knives are slidably connected to the front of the knife rest, limit rods are connected to the knives, limit holes for the limit rods to penetrate through are correspondingly arranged on the knife rest, and a sliding plate is slidably connected to the back of the knife rest. A plurality of bosses are arranged on the sliding plate, first connecting pieces are rotationally connected to the bosses, the other ends of the first connecting pieces are rotationally connected with the limiting rods, and the sliding plate is connected with a driving mechanism used for driving the sliding plate to slide on the tool rest. According to the carbon crystal plate cutting device, the sliding cutter and the sliding plate are arranged, the cutter and the sliding plate are in transmission connection through the limiting rod, the boss and the first connecting piece, the sliding plate and the cutter are driven by the driving mechanism to slide together, then the extension length of the blade is adjusted, the cutting requirements of carbon crystal plates with different thicknesses are met, and the flexibility of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plate production equipment, and specifically relates to a cutting knife set for carbon crystal plate transverse cutting. BACKGROUND

[0002] As a new type of functional plate, the carbon crystal plate is upgraded on the basis of ordinary wood veneer, and is made of bamboo charcoal powder, calcium powder, PVC and additives through high-temperature extrusion process. The carbon crystal plate has many advantages. First, it is more environmentally friendly than traditional wood veneer and does not contain harmful substances such as formaldehyde, and does not produce harmful emissions during manufacturing. Second, the carbon crystal plate has higher wear resistance and impact resistance, and the surface is smooth and not easy to absorb dirt, easy to clean and maintain. In addition, the carbon crystal plate has a variety of colors and can meet the needs of various decorative styles, and is easy to install and has a short customization cycle. Due to its diversified appearance effect and environmental protection characteristics, the carbon crystal plate is becoming more and more popular in modern decoration.

[0003] The production process steps of the carbon crystal plate are mixing, extrusion, cooling and shaping, pulling, longitudinal edge cutting, transverse cutting and film coating. The transverse cutting machine selected on the carbon crystal plate production line can be divided into saw blade cutting and blade cutting according to the cutting method. The saw blade cutting uses a high-speed rotating saw blade to cut the carbon crystal plate by contacting the cutting teeth on the saw blade with the carbon crystal plate. The blade cutting uses a sharp blade to cut the carbon crystal plate, and the cutting edge of the blade directly acts on the surface of the carbon crystal plate to achieve cutting separation. However, the saw blade needs to rotate at high speed, which produces a lot of noise in the work site. In addition, the saw blade is not replaced frequently, which makes the saw blade not sharp enough and produces a lot of cutting debris during high-speed rotation cutting, polluting the production environment. Compared with saw blade cutting, the cutting surface of blade cutting is smoother, the noise is much smaller, and the cutting debris is less than saw blade cutting. Therefore, carbon crystal plate manufacturers gradually tend to choose blade type transverse cutting machine to meet the requirements of modern production.

[0004] With the diversification of modern decoration methods, manufacturers need to produce carbon crystal plates of various thicknesses to meet the needs of various users. However, the blade length of the existing blade type transverse cutting machine is fixed and cannot be quickly adjusted according to the actual production thickness of the carbon crystal plate, resulting in low production efficiency. SUMMARY

[0005] The utility model discloses a cutting knife set for carbon crystal plate transverse cutting, which is provided to solve the problem of low production efficiency caused by the fixed blade extension length of the blade type transverse cutting machine in the prior art and the inability to quickly adapt to the thickness of the carbon crystal plate produced in actual production.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model discloses a cutting knife set for carbon crystal plate transverse cutting, which comprises a tool rest, a plurality of cutters are slidably connected to the front surface of the tool rest, a limiting rod is connected to each cutter, a limiting hole is formed in the tool rest to allow the limiting rod to pass through, a sliding plate is slidably connected to the back surface of the tool rest, a plurality of bosses are arranged on the sliding plate, a first connecting piece is rotatably connected to each boss, the other end of the first connecting piece is rotatably connected to the limiting rod, and a driving mechanism is connected to the sliding plate to drive the sliding plate to slide on the tool rest.

[0008] Further, the driving mechanism comprises two first support seats arranged on the back surface of the tool rest, a vertical screw rod is rotatably connected to each first support seat, a moving seat is threadedly connected to the screw rod, and the moving seat is connected to the sliding plate through a second connecting piece.

[0009] Still further, the driving mechanism has two groups, which are arranged on the left and right sides of the sliding plate, the two groups of driving mechanisms are connected through a transmission mechanism, and the screw rod of one of the groups of driving mechanisms penetrates the tool rest and is connected to a rotating handle above the tool rest.

[0010] Still further, the transmission mechanism comprises two second support seats arranged on the back surface of the tool rest, a horizontal connecting rod is rotatably connected to each second support seat, a first bevel gear is connected to the left and right ends of the connecting rod, a second bevel gear is arranged on the outer side of the screw rod of each side driving mechanism, and the teeth of the first bevel gear and the teeth of the second bevel gear are connected to each other.

[0011] Still further, the utility model further comprises a positioning mechanism for positioning the sliding position of the sliding plate.

[0012] Still further, the positioning mechanism comprises a horizontal pull rod, a positioning rod horizontally extends in the front-back direction and is connected to the left and right ends of the pull rod, a through hole is formed in the second connecting piece to allow the positioning rod to pass through, a positioning groove is formed in the tool rest to allow the positioning rod to be inserted into the groove, the positioning groove has a plurality of grooves and is arranged at intervals in the vertical direction, a spring is arranged on the outer side of the positioning rod, one end of the spring is fixedly connected to the second connecting piece, and the other end of the spring is fixedly connected to the pull rod.

[0013] Further, the back of the knife holder is detachably connected with a rear cover, a long circular hole for the positioning rod to pass through is formed in the rear cover, and the pull rod is located outside the rear cover.

[0014] Further, the knives comprise a plurality of knife handles and knife blades, the knife handles and the knife blades are detachably connected, and the end of the knife blade extends from below the knife holder, and the extension length of the end of the knife blade gradually decreases along the cutting direction of the plate.

[0015] Further, the front of the knife holder is detachably connected with a front cover.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a sliding type cutter and sliding plate are set up, through the limiting rod, the boss and first connecting piece, make the cutter and sliding plate realize transmission connection, and through the drive mechanism drive sliding plate and cutter slide together, and then adjust the extension length of the blade to adapt to the cutting demand of different thickness carbon crystal plate, improve the flexibility of equipment. In addition, the drive mechanism includes a screw rod, a moving seat in threaded connection with the screw rod and a rotating handle fixedly connected with the screw rod, the moving seat is connected with the sliding plate through the second connecting piece, and the extension length of the blade can be adjusted by rotating the rotating handle, so that the operation is convenient, and the production efficiency is improved. Meanwhile, the positioning mechanism is also arranged, which can position the adjusted cutter position, avoid the displacement of the blade during the cutting process due to the pressure, that is, the phenomenon that the blade is retracted upward, and ensure the smoothness of the cutting action of the blade. Moreover, the blade has a plurality of blades, and the extension length of the blade gradually decreases along the cutting direction of the plate, that is, the cutting depth of the blade gradually decreases along the cutting direction of the plate, which can reduce the probability of the fracture of the blade during the cutting process to the greatest extent, improve the durability of each blade, ensure the continuity of the plate cutting, avoid the cutting fault or the step phenomenon on the plate, and ensure the appearance of the finished product after cutting. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front overall structure schematic view of the cutting knife group for carbon crystal plate transverse cutting provided by the utility model;

[0019] Figure 2 It is a back overall structure schematic view of the cutting knife group for carbon crystal plate transverse cutting provided by the utility model;

[0020] Figure 3 It is a structure schematic view in the front cover of the cutting knife group for carbon crystal plate transverse cutting provided by the utility model;

[0021] Figure 4The utility model provides a kind of cutting knife group for carbon crystal plate transverse cutting is hidden rear cover's structure schematic view;

[0022] Figure 5 The utility model provides a kind of cutting knife group for carbon crystal plate transverse cutting is in rear cover's structure schematic view;

[0023] Figure 6 The utility model provides a kind of cutting knife group for carbon crystal plate transverse cutting is the structure schematic view of driving mechanism;

[0024] Figure 7 The utility model provides a kind of cutting knife group for carbon crystal plate transverse cutting is the structure schematic view of blade in retracted state;

[0025] Figure 8 The utility model provides a kind of cutting knife group for carbon crystal plate transverse cutting is the structure schematic view of blade in extended state;

[0026] Figure 9 The utility model provides a kind of cutting knife group for carbon crystal plate transverse cutting is the structure schematic view of blade holder front face;

[0027] Figure 10 The utility model provides a kind of cutting knife group for carbon crystal plate transverse cutting is the structure schematic view of blade holder back face.

[0028] Wherein, the reference sign is:

[0029] 1, blade holder;11, first sliding groove;12, limit hole;13, second sliding groove;

[0030] 2, front cover;

[0031] 3, rear cover;31, long circular hole;32, scale;

[0032] 4, cutter;41, handle;42, blade;43, limit rod;

[0033] 5, transmission mechanism;51, second support seat;52, connecting rod;53, first bevel gear;54, second bevel gear;

[0034] 6, sliding plate;7, boss;8, first connecting piece;

[0035] 9, driving mechanism;91, first support seat;92, screw;93, moving seat;94, second connecting piece;95, rotating handle;

[0036] 10, positioning mechanism;101, positioning rod;102, pull rod;103, positioning groove;104, spring. Specific implementation

[0037] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0038] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0041] For the convenience of understanding, please refer to Figures 1 to 10The embodiment provides a cutting knife set for transverse cutting of carbon crystal plate, which comprises, from front to back, a front cover 2, a knife holder 1 and a rear cover 3. The front surface of the knife holder 1 is slidably connected with five cutters 4. The five cutters 4 are arranged at intervals and are inclined. Specifically, five inclined first sliding grooves 11 are concavely arranged on the front surface of the knife holder 1, first sliding rails are arranged on the left and right sides of the first sliding grooves 11, and the cutters 4 are slidably connected with the knife holder 1 through the first sliding rails. Limiting rods 43 horizontally extending in the front-back direction are fixedly connected to the back surface of the cutters 4 (i.e. the back surface direction of the knife holder 1), limiting holes 12 are arranged on the knife holder 1, the number of the limiting holes 12 is the same as that of the cutters 4, and the limiting holes 12 are penetrated by the limiting rods 43, i.e. when the cutters 4 slide on the front surface of the knife holder 1, the cutters 4 drive the limiting rods 43 to move in the limiting holes 12. The back surface of the knife holder 1 is slidably connected with a sliding plate 6 in the vertical direction. Specifically, a second sliding groove 13 is concavely arranged on the back surface of the knife holder 1, second sliding rails are arranged on the left and right sides of the second sliding groove 13, and the sliding plate 6 is slidably connected with the knife holder 1 through the second sliding rails. Five horizontal bosses 7 are arranged on the sliding plate 6, and five first connecting pieces 8 are arranged on the back surface of the knife holder 1. The first connecting pieces 8 are long strip-shaped structures, one end of which is rotatably connected with the bosses 7, and the other end of which is rotatably connected with the limiting rods 43. A group of driving mechanisms 9 are connected with the left and right sides of the sliding plate 6 respectively, and the driving mechanisms 9 are used for driving the sliding plate 6 to slide on the back surface of the knife holder 1 in the vertical direction. Through the driving mechanisms 9, the sliding plate 6 slides in the vertical direction. Since the bosses 7 on the sliding plate 6 and the limiting rods 43 on the back surface of the cutters 4 are connected through the first connecting pieces 8, and the two ends of the first connecting pieces 8 are rotatably connected with the bosses 7 and the limiting rods 43 respectively, when the sliding plate 6 slides in the vertical direction, the limiting rods 43 move in the limiting holes 12, i.e. the cutters 4 slide on the front surface of the knife holder 1, and the extension and retraction actions of the cutters 4 are realized.

[0042] For the convenience of understanding, please refer to Figures 4 to 8The two groups of driving mechanisms 9 respectively include a groove opened on the back of the tool holder 1, two first support seats 91 fixedly arranged in the groove, and the two first support seats 91 arranged in the same vertical direction and spaced from each other. A vertical screw rod 92 is rotationally connected to the first support seat 91, a moving seat 93 is threadedly connected to the screw rod 92, and the moving seat 93 moves along the axial direction (i.e. the vertical direction) of the screw rod 92 when the screw rod 92 rotates. The second connecting piece 94 is a long strip-shaped structure, and the two side ends thereof are respectively connected with the moving seat 93 and the sliding plate 6. The two groups of driving mechanisms are connected through the transmission mechanism 5, the right screw rod 92 penetrates through the back of the tool holder 1 and is fixedly connected to the upper portion of the tool holder 1, and a rotating handle 95 is arranged on the right screw rod 92. When the rotating handle 95 is rotated, the two screw rods 92 on the corresponding first support seats 91 are simultaneously driven to rotate through the transmission mechanism 5, and the moving seats 93 are driven to move in the axial direction of the screw rod 92. Since the two moving seats 93 are connected with the sliding plate 6 through the second connecting piece 94, the moving seats 93 drive the sliding plate 6 to slide up and down on the back of the tool holder 1 when the moving seats 93 move up and down, and the tool 4 is driven to slide on the front of the tool holder 1, thereby realizing the extension and retraction of the tool 4.

[0043] For the convenience of understanding, please continue to refer to Figures 4 to 8 The transmission mechanism 5 includes two second support seats 51 arranged in the groove on the back of the tool holder 1, a horizontal transverse connecting rod 52 rotationally connected to the second support seat 51, the connecting rod 52 perpendicular to the two screw rods 92, first bevel gears 53 fixedly connected to the left and right side ends of the connecting rod 52, and second bevel gears 54 fixedly arranged outside the two screw rods 92 and corresponding to the first bevel gears 53. The teeth of the first bevel gears 53 are meshingly connected with the teeth of the second bevel gears 54. When the rotating handle 95 is rotated, the right screw rod 92 is correspondingly rotated, the second bevel gear 54 on the right screw rod 92 is driven to rotate, the second bevel gear 54 drives the first bevel gear 53 to correspondingly rotate since the right second bevel gear 54 is meshingly connected with the right first bevel gear 53, the connecting rod 52 is driven to rotate, the left first bevel gear 53 is driven to rotate since the left side of the connecting rod 52 is connected with the same first bevel gear 53, the left second bevel gear 54 is driven to rotate, and finally the left screw rod 92 is synchronously rotated with the right screw rod 92, i.e. the two moving seats 93 are synchronously moved in the vertical direction.

[0044] For the convenience of understanding, please refer to Figure 2 and Figure 4The positioning mechanism 10 is used for positioning the sliding position of the sliding plate 6, and specifically comprises a pull rod 102 horizontally arranged on the back of the tool holder 1, the left and right ends of the pull rod 102 are respectively connected with a positioning rod 101 horizontally extending in the front-back direction, a through hole is formed in the second connecting piece 94, the left and right sides of the back of the tool holder 1 are respectively provided with a plurality of positioning grooves 103 which are arranged at intervals in the vertical direction, and the through hole and the positioning grooves 103 are all capable of penetrating and inserting the positioning rod 101. The outer side of the positioning rod 101 is provided with a spring 104, one end of the spring 104 is fixedly connected with the second connecting piece 94, the other end of the spring 104 is fixedly connected with the pull rod 102, and the movement direction of the spring 104 is the same as the axial direction of the positioning rod 101, both being the front-back horizontal direction. In the initial state, due to the pulling force of the spring 104, both of the positioning rods 101 penetrate through the through hole of the second connecting piece 94 and are correspondingly inserted into the positioning grooves 103 on the back of the tool holder 1, at this time, the second connecting piece 94, the moving seat 93 and the sliding plate 6 cannot move in the vertical direction, that is, the sliding position of the sliding plate 6 is positioned, and the extension length of the tool 4 is fixed; when it is necessary to adjust the extension length of the tool 4, the pull rod 102 is pulled horizontally outward, the positioning rod 101 is moved horizontally outward, until the positioning rod 101 is separated from the positioning groove 103, at this time, the rotating handle 95 is rotated, so that the moving seats 93 on both sides are simultaneously and synchronously moved in the vertical direction, that is, the corresponding second connecting pieces 94 and the sliding plate 6 are moved in the vertical direction, so as to adjust the extension length of the tool 4; after the adjustment is completed, the pull rod 102 is loosened, at this time, the spring 104 releases the elastic potential energy, drives the positioning rod 101 and the pull rod 102 to move horizontally to reset, until the end of the positioning rod 101 is inserted into the positioning groove 103, that is, the sliding position of the sliding plate 6 is positioned, and the extension length of the adjusted tool 4 is fixed.

[0045] For the convenience of understanding, please continue to refer to Figure 2 and Figure 4 The back of the tool holder 1 is screw-connected with a rear cover 3, a long circular hole 31 is formed in the left and right sides of the rear cover 3, the diameter of the long circular hole 31 is greater than the diameter of the positioning rod 101, that is, the long circular hole 31 can penetrate the positioning rod 101, the outer side of the rear cover 3 is connected with the pull rod 102 through the penetration of the positioning rod 101, and the position of the long circular hole 31 corresponds to the position of the positioning groove 103. The rear cover 3 can hide the components on the back of the tool holder 1, avoid the influence of other external factors on the movement and transmission process of the components, and ensure the smooth movement and transmission process of the components. Further, the outer side of the pull rod 102 and the two sides of the long circular hole 31 are both provided with a scale line 32, the position of the scale line 32 corresponds to the position of the positioning groove 103, which facilitates the staff to align the axis of the positioning rod 101 with the axis of the positioning groove 103 on the outer side of the rear cover 3, and then insert the positioning rod 101 into the positioning groove 103.

[0046] For ease of understanding, please refer to Figure 3 In this embodiment, the tool 4 has five, including the shank 41 and the blade 42, the shank 41 and the blade 42 are screw connected, the end of the blade 42 extends from the lower part of the tool holder 1, the extension length of the end of the blade 42 gradually decreases along the cutting direction of the plate, that is, the cutting depth of the blade 42 gradually decreases along the cutting direction of the plate. In this embodiment, the cutting direction of the plate is from left to right, that is, the extension length of the blade 42 and the cutting depth of the blade 42 gradually decrease from left to right. This design can not only reduce the probability of fracture of the blade 42 during cutting to the greatest extent and improve the durability of each blade 42, but also ensure the continuity of plate cutting and avoid the occurrence of cutting faults or step differences on the plate. The front surface of the tool holder 1 is screw connected with the front cover 2, which makes the tool 4 on the front surface of the tool holder 1 hidden design, avoids the influence of other external factors on the sliding process of the shank 41, and at the same time can protect the blade 42. Further, in order to further improve the production efficiency, the end of each blade 42 is always exposed below the tool holder 1 (including the initial state), and a protective sleeve needs to be sleeved on the end of the blade 42 during actual transportation and installation to avoid injury to the human body caused by the exposed blade 42 during installation and transportation.

[0047] The utility model discloses a cutting knife group, comprising a cutter holder 1, a plurality of cutting blades 42, a front cover 2 and a rear cover 3, wherein the front cover 2 and the rear cover 3 are respectively connected to the front and back of the cutter holder 1, and the cutting blades 42 are arranged on the front cover 2 and the rear cover 3.

[0048] Although the utility model has utilized the above preferable embodiment to carry out the explanation, it is not used to limit the protection scope of the utility model, and any person skilled in the art carries out various changes and modifications to the above embodiment without departing from the spirit and scope of the utility model still belongs to the protection scope of the utility model.

Claims

1. A cutting-knife set for transverse cutting of carbon crystal plate, characterized by comprising: The utility model provides a cutting tool holder, including the cutter holder (1), the front surface of cutter holder (1) is connected with a plurality of cutters (4) in sliding mode, the cutter (4) is connected with the limiting rod (43), the limiting hole (12) that can be passed through is set up in the cutter holder (1) correspondingly, the back surface of cutter holder (1) is connected with the sliding plate (6) in sliding mode, the sliding plate (6) is equipped with a plurality of bosses (7), one end of the first connecting piece (8) is rotatably connected with the boss (7), the other end of the first connecting piece (8) is rotatably connected with the limiting rod (43), the sliding plate (6) is connected with the drive mechanism (9) for driving the sliding plate (6) to slide on the cutter holder (1).

2. The cutting-knife set for transversely cutting carbon crystal panels according to claim 1, wherein The drive mechanism (9) includes two first support seats (91) arranged on the back surface of the cutter holder (1) respectively, a vertical screw rod (92) is rotatably connected to the first support seat (91), a moving seat (93) is threadedly connected to the screw rod (92), and the moving seat (93) is connected to the sliding plate (6) through a second connecting piece (94).

3. The cutting-knife set for transversely cutting carbon crystal panels according to claim 2, wherein The drive mechanism (9) has two groups, which are located on the left and right sides of the sliding plate (6), and the two groups of drive mechanisms (9) are connected through a transmission mechanism (5). The screw rod (92) of one of the drive mechanisms (9) extends through the cutter holder (1) and is connected to a rotating handle (95) above the cutter holder (1).

4. The cutting-knife set for transversely cutting carbon crystal panels according to claim 3, wherein The transmission mechanism (5) includes two second support seats (51) arranged on the back surface of the cutter holder (1) respectively, a horizontal connecting rod (52) is rotatably connected to the second support seat (51), first bevel gears (53) are connected to the left and right sides of the connecting rod (52) respectively, second bevel gears (54) are sleeved outside the screw rods (92) of the two drive mechanisms (9) correspondingly, and the teeth of the first bevel gears (53) are meshed with the teeth of the second bevel gears (54).

5. The cutting-knife set for transverse cutting of carbon crystal plates according to claim 3 or 4, wherein The utility model also includes a positioning mechanism (10) for positioning the sliding position of the sliding plate (6).

6. The cutting-knife set for transversely cutting carbon crystal panels according to claim 5, wherein The positioning mechanism (10) includes a horizontal pull rod (102), the left and right ends of the pull rod (102) are connected with positioning rods (101) extending horizontally in the front-back direction, through holes are formed in the second connecting piece (94) to allow the positioning rods (101) to pass through, positioning grooves (103) are formed in the cutter holder (1) to allow the positioning rods (101) to be inserted, the positioning grooves (103) are spaced apart from each other in the vertical direction, springs (104) are arranged outside the positioning rods (101), one end of the spring (104) is fixedly connected to the second connecting piece (94), and the other end of the spring (104) is fixedly connected to the pull rod (102).

7. The cutting-knife set for transversely cutting a carbon crystal plate according to claim 6, wherein The back surface of the cutter holder (1) is detachably connected to a rear cover (3), an oblong hole (31) is formed in the rear cover (3) to allow the positioning rods (101) to pass through, the pull rod (102) is located outside the rear cover (3), and the positions of the oblong hole (31) and the positioning grooves (103) correspond to each other.

8. The cutting-knife set for transversely cutting carbon crystal panels according to claim 1, wherein The cutter (4) has a plurality of cutter shanks (41) and cutter blades (42), the cutter shanks (41) are detachably connected with the cutter blades (42), the cutter blades (42) are extended from the lower side of the cutter holder (1), and the extension length of the cutter blades (42) gradually decreases along the cutting direction of the plate.

9. The cutting-knife set for transversely cutting a carbon crystal plate according to claim 1 or 8, wherein The front cover (2) is detachably connected to the front surface of the cutter holder (1).

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