Cutter, cutting device and paperboard

Abstract

The utility model relates to the field of paperboard processing, and discloses a cutter, a cutting device and a paperboard. Wherein the cutter is suitable for being movably arranged, so that a blade part of the cutter can act on a paperboard to be cut, the blade part is of a wave-shaped structure, and a preset angle is formed between the fluctuation direction of the wave-shaped structure and the moving direction of the cutter. By arranging the blade part of the wave-shaped structure, the edge of the cut paperboard can also form the wave-shaped structure, the edge of the paperboard is uneven, namely the edge of the paperboard is discontinuous, and the discontinuous edge can form relatively small and relatively passivated contact points, so that the stress distribution of the edge is more dispersed, the pressure points are smaller, and the edge is more uniform. Therefore, the edge of the paperboard can be prevented from applying pressure more intensively and directly, and the probability that the edge of the paperboard scratches a user is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard processing, in particular to a cutter, a cutting device and cardboard. Background Art

[0002] Paperboard is widely used in the packaging of various products due to its advantages such as good environmental protection, low cost and good mechanical properties.

[0003] During the production process of corrugated cardboard, in order to obtain the required size or specification, the corrugated cardboard is usually cut by a cutting device. During the cutting process, the edge of the corrugated cardboard is squeezed by the cutter, which will cause the multi-layer structure of the corrugated cardboard to gather and become thinner in the thickness direction, resulting in the edge of the corrugated cardboard being hard and sharp, which is easy to cut the user. For ordinary cardboard, since its edge is thin, it is also easy to cut the user.

[0004] Therefore, how to prevent the edge of the cardboard from easily cutting the user is a technical problem that those skilled in the art need to solve urgently. Utility Model Content

[0005] In view of this, the utility model provides a knife, a cutting device and a paperboard to solve or improve the problem that the edge of the paperboard is easy to cut the user.

[0006] In a first aspect, the utility model provides a tool, which is suitable for being movably arranged so that the blade of the tool can act on the cardboard to be cut, the blade is set as a wavy structure, and there is a preset angle between the waving direction of the wavy structure and the moving direction of the tool.

[0007] In an optional embodiment, the wavy structure includes a first arc segment and a second arc segment, and along the extension direction of the wavy structure, the first arc segment and the second arc segment are alternately arranged and connected, and the bending directions of the first arc segment and the second arc segment are opposite;

[0008] Alternatively, the wavy structure includes third arc segments and straight line segments, and along the extension direction of the wavy structure, the third arc segments and the straight line segments are alternately arranged and connected;

[0009] Alternatively, the crests or troughs of the wavy structure are arranged in a trapezoidal or rectangular shape.

[0010] On the other hand, the utility model also provides a cutting device, comprising:

[0011] A support, wherein the support is provided with a placement surface for placing the cardboard to be cut;

[0012] As for the cutter as described above, the blade faces the placement surface, and the cutter is movably arranged in a direction approaching or moving away from the placement surface, so that the blade can act on the paperboard.

[0013] In an optional embodiment, it further includes a first driving device, which is connected to the tool and is used to drive the tool to move.

[0014] In an optional embodiment, the cutting device further includes a limiter, a pusher and a second drive device;

[0015] Wherein, the limiting member is arranged on the support, the limiting member is used to limit the cardboard, the pushing member is slidably connected to the support, the pushing member can approach or move away from the limiting member, and is used to push the cardboard to move in the direction close to the support, and the projection of the tool on the placement surface is located between the limiting member and the pushing member.

[0016] In an optional embodiment, the limiting member is arranged on the support in a positionally adjustable manner along a direction approaching or moving away from the limiting member.

[0017] In an optional embodiment, it further includes a guide member, wherein two guide members are provided, and the two guide members are respectively provided on both sides of the moving path of the paperboard and are used to guide the paperboard.

[0018] In an optional embodiment, along the arrangement direction of the two guide members, at least one of the guide members is adjustably arranged on the support.

[0019] In an optional embodiment, a pressing device is further included, wherein the pressing device is arranged on the support and is used to press the paperboard.

[0020] In a third aspect, the utility model further provides a paperboard, wherein at least part of the edge of the paperboard is configured as a wavy structure, wherein:

[0021] The wavy structure includes a first arc segment and a second arc segment. Along the extension direction of the wavy structure, the first arc segment and the second arc segment are alternately arranged and connected. The first arc segment and the second arc segment have opposite bending directions. The curvature radius of the first arc segment is greater than the curvature radius of the second arc segment.

[0022] Alternatively, the wavy structure includes third arc segments and straight line segments, and along the extension direction of the wavy structure, the third arc segments and the straight line segments are alternately arranged and connected;

[0023] Alternatively, the crests or troughs of the wavy structure are arranged in a trapezoidal or rectangular shape.

[0024] The cutter provided by the utility model can form a wavy structure on the edge of the cardboard after cutting by arranging the blade portion with a wavy structure, so that the edge of the cardboard is uneven, that is, the edge of the cardboard is discontinuous. This discontinuity will cause the edge to form a relatively small and relatively blunt contact point, so that the stress distribution of the edge is more dispersed and the pressure point is smaller, so that the edge of the cardboard can be prevented from applying pressure more concentratedly and directly, thereby reducing the probability of the edge of the cardboard scratching the user.

[0025] The cutting device provided by the utility model includes the cutter provided by the utility model, and thus includes all the above advantages of the cutter.

[0026] The edge of the paperboard provided by the utility model is a wavy structure, so that the edge of the paperboard is uneven, that is, the edge of the paperboard is discontinuous. This discontinuity will cause the edge to form a relatively small and relatively blunt contact point, so that the stress distribution of the edge is more dispersed and the pressure point is smaller. Therefore, it can be avoided that the edge of the paperboard applies pressure more concentratedly and more directly, thereby reducing the probability of the edge of the paperboard scratching the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the structure of a tool according to an embodiment of the utility model;

[0029] Figure 2 This is a schematic structural diagram of a first wave-shaped structure of an embodiment of the utility model;

[0030] Figure 3 This is a schematic structural diagram of a second wave-shaped structure according to an embodiment of the utility model;

[0031] Figure 4 This is a schematic structural diagram of a third wave-shaped structure of an embodiment of the utility model;

[0032] Figure 5 This is a schematic structural diagram of a fourth wave-shaped structure of an embodiment of the utility model;

[0033] Figure 6 This is a schematic structural diagram of a fifth wave-shaped structure of an embodiment of the utility model;

[0034] Figure 7This is a schematic diagram of the structure of a paperboard in an embodiment of the utility model;

[0035] Figure 8 This is a schematic structural diagram of a cutting device according to an embodiment of the utility model;

[0036] Fig. 9 It is a schematic structural diagram of a limiting member, a pushing member and a guiding member of a cutting device in an embodiment of the utility model;

[0037] Fig.10 It is a structural schematic diagram of the pressing device of the cutting device in the embodiment of the utility model;

[0038] Fig.11 It is a side view of the cutting device in the embodiment of the utility model.

[0039] Description of reference numerals:

[0040] 1. Support; 101. Placement surface; 102. Avoidance groove; 103. First mounting seat; 2. Cutting tool; 201. Blade; 3. Wave-shaped structure; 301. First arc segment; 302. Second arc segment; 303. Third arc segment; 304. Straight segment; 305. Trapezoid; 306. Rectangle; 4. First driving device; 5. Limiting member; 6. Pushing member; 7. Second driving device; 8. Guide member; 9. Pressing device; 901. Second mounting seat; 902. Third driving device; 903. Pressing plate; 10. Fourth driving device; 11. Fifth driving device; 12. Paperboard. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0042] For corrugated cardboard, in order to obtain the required size or specification during the production and processing, the corrugated cardboard is usually cut by a cutting device. During the cutting process, the edge of the corrugated cardboard is squeezed by the cutter, which will cause the multi-layer structure of the corrugated cardboard to gather into a line along the thickness direction. The hardness is large and sharp, which can easily cut the user. Similarly, for ordinary cardboard, since its edge itself is relatively thin, it is also easy to cut the user. In order to solve or improve the technical defect that the edge of the cardboard is easy to cut the user, a knife, a cutting device and a cardboard are provided in the embodiment of the utility model.

[0043] Combine the following Figures 1 to 11 , describing the tool 2 in an embodiment of the present utility model.

[0044] Specifically, the cutter 2 is adapted to be movably arranged so that the blade 201 of the cutter 2 can act on the cardboard 12 to be cut, thereby cutting the cardboard 12. For example, the cutter 2 is slidably connected to the support 1. Optionally, the cutter 2 can cut the cardboard 12 under the action of manpower or a driving device. The blade 201 of the cutter 2 is arranged as a wave-shaped structure 3, and the wave direction of the wave-shaped structure 3 has a preset angle with the moving direction of the cutter 2. For example, referring to Figure 1 As shown, the moving direction of the tool 2 is direction a in the figure, and the undulating direction of the wavy structure 3 is direction b in the figure. Optionally, the preset angle is 90 degrees, that is, the undulating direction of the wavy structure 3 is perpendicular to the moving direction of the tool 2.

[0045] In this embodiment, since the blade 201 is configured as a wavy structure 3 and there is a preset angle between the waving direction of the wavy structure 3 and the moving direction of the tool 2 , after the cardboard 12 is cut by the tool 2 , the edge formed by the cutting of the cardboard 12 is also a wavy structure 3 .

[0046] The wavy structure 3 of the edge of the cardboard 12 makes the edge of the cardboard 12 uneven, that is, the edge of the cardboard 12 is discontinuous. This discontinuity will cause the edge to form a relatively small and relatively blunt contact point, making the stress distribution of the edge more dispersed and the pressure point smaller. Therefore, it can be avoided that the edge of the cardboard 12 applies pressure more concentratedly and more directly, thereby reducing the probability of the edge of the cardboard 12 scratching the user.

[0047] refer to Figure 1 and Figure 2 As shown, in some embodiments provided by the present invention, the wavy structure 3 includes a first arc segment 301 and a second arc segment 302. Along the extension direction of the wavy structure 3, the first arc segment 301 and the second arc segment 302 are alternately arranged and connected, and the bending directions of the first arc segment 301 and the second arc segment 302 are opposite. Figure 1 As shown, the extension direction of the wavy structure 3 is the c direction in the figure. Optionally, the extension direction can be perpendicular to the moving direction of the tool 2 or the undulating direction of the wavy structure 3 .

[0048] In this embodiment, after the paperboard 12 is cut by the cutter 2 , the wavy structure 3 at the edge of the paperboard 12 is smooth as a whole, without any sharp point structure, and is not prone to the problem of being hooked or stabbed.

[0049] Optionally, refer to Figure 2As shown, the curvature radius of the first arc segment 301 is greater than the curvature radius of the second arc segment 302, and when the cutter 2 cuts the paperboard 12, the first arc segment 301 bends toward the inside of the paperboard 12 so that the edge of the paperboard 12 forms a depression, and the second arc segment bends toward the outside of the paperboard 12 so that the edge of the paperboard 12 forms a protrusion. Figure 7 As shown, the protrusions on the edge of the paperboard 12 are relatively small, and the spacing between the protrusions is relatively large, which can further disperse the stress distribution on the edge, thereby further reducing the probability of the edge of the paperboard 12 scratching the user.

[0050] Of course, the wavy structure 3 is not limited to being set in the form of the first arc segment 301 and the second arc segment 302. For example, Figure 3 As shown, in other embodiments provided by the present invention, the wavy structure 3 includes a third arc segment 303 and a straight segment 304. Along the extension direction of the wavy structure 3, the third arc segment 303 and the straight segment 304 are alternately arranged and connected. In this way, the number of arc segments of the wavy structure 3 is relatively small, thereby simplifying the structure of the tool 2 and reducing the difficulty of producing the tool 2.

[0051] Furthermore, the third arc segment 303 and the straight segment 304 are connected by an arc transition to avoid forming a tip at the connection portion between the third arc segment 303 and the straight segment 304, thereby avoiding forming a tip structure at the edge of the paperboard 12 after the edge of the paperboard 12 is cut.

[0052] The wavy structure 3 is not limited to the third arc segment 303 and the straight line segment 304. Figure 4-Figure 6 As shown, in other embodiments provided by the present invention, the crest or trough of the wave-shaped structure 3 is set as a trapezoid 305 or a rectangle 306. In this way, the wave-shaped structure 3 does not need to be provided with an arc segment, thereby simplifying the structure of the tool 2 and reducing the difficulty of producing the tool 2.

[0053] Furthermore, the vertices of the trapezoid 305 or the rectangle 306 are set to arc structures to reduce the generation of sharp points in the trapezoid 305 or the rectangle 306, thereby avoiding the formation of sharp points on the edge of the paperboard 12 after the edge of the paperboard 12 is cut.

[0054] A cutting device is also provided in an embodiment of the utility model.

[0055] Specifically, the cutting device comprises a support 1 and a cutter 2 as described above.

[0056] The support 1 is provided with a placement surface 101 for placing the cardboard 12 to be cut. For example, the support 1 can be formed by welding profiles.

[0057] The blade 201 of the cutter 2 faces the placement surface 101, and the cutter 2 is movable in a direction close to or away from the placement surface 101, so that the blade 201 can act on the cardboard 12 to cut the cardboard 12. For example, the placement surface 101 is horizontally arranged, the blade 201 of the cutter 2 faces downward, and the cutter 2 can be raised and lowered in the vertical direction. The blade 201 is arranged as a wave-shaped structure 3, and the wave direction of the wave-shaped structure 3 has a preset angle with the moving direction of the cutter 2. For example, Figure 1 As shown, the moving direction of the tool 2 is direction a in the figure, and the undulating direction of the wavy structure 3 is direction b in the figure. Optionally, the preset angle is 90 degrees, that is, the undulating direction of the wavy structure 3 is perpendicular to the moving direction of the tool 2.

[0058] In this embodiment, during use, the cardboard 12 to be cut is placed on the placement surface 101 of the cutting device, and then the cutter 2 is driven close to the placement surface 101, so that the blade 201 acts on the cardboard 12, thereby cutting the cardboard 12. Since the blade 201 is configured as a wavy structure 3, and there is a preset angle between the waving direction of the wavy structure 3 and the moving direction of the cutter 2, after the cardboard 12 is cut by the cutter 2, the edge formed by cutting the cardboard 12 is also a wavy structure 3.

[0059] The wavy structure 3 of the edge of the cardboard 12 makes the edge of the cardboard 12 uneven, that is, the edge of the cardboard 12 is discontinuous. This discontinuity will cause the edge to form a relatively small and relatively blunt contact point, making the stress distribution of the edge more dispersed and the pressure point smaller. Therefore, it can be avoided that the edge of the cardboard 12 applies pressure more concentratedly and more directly, thereby reducing the probability of the edge of the cardboard 12 scratching the user.

[0060] Optionally, an avoidance groove 102 is provided on the placement surface 101 , and the avoidance groove 102 is arranged opposite to the tool 2 and can be placed in the tool 2 , so that during the cutting process, the tool 2 can move below the placement surface 101 to cut the cardboard 12 .

[0061] In some embodiments provided by the utility model, the cutting device also includes a first mounting seat 103, and the tool 2 is slidably connected to the first mounting seat 103. During use, cutting can be completed by driving the tool 2 to slide relative to the first mounting seat 103, making cutting more convenient.

[0062] Optionally, the first mounting seat 103 is disposed on the support 1 and connected to the support 1. For example, the first mounting seat 103 is configured as a gantry structure, and the tool 2 is disposed on a crossbeam of the gantry structure, so that the first mounting seat 103 can provide a more stable support effect for the tool 2. Further, the cutting device further includes a guide rod, the tool 2 is connected to the guide rod, and the guide rod is slidably connected to the first mounting seat 103.

[0063] refer to Figure 8 As shown, in some embodiments provided by the present invention, the cutting device further comprises a first driving device 4. The first driving device 4 is connected to the cutter 2 and is used to drive the cutter 2 to move. In this way, during the cutting process, the first driving device 4 drives the cutter 2 to move, so that the cardboard 12 can be cut, and there is no need for manual labor to drive the cutter 2, thereby improving the cutting efficiency and facilitating the improvement of the automation level of the cutting device.

[0064] Optionally, the first driving device 4 can be configured as a pneumatic cylinder, an oil cylinder or a screw nut driving mechanism.

[0065] refer to Fig. 9 As shown, in some embodiments provided by the present utility model, the cutting device further includes a limiting member 5, a pushing member 6 and a second driving device 7. The pushing member 6 can be set as a push plate, and the limiting member 5 can be set as a limiting plate.

[0066] The limiting member 5 is arranged on the support 1, and is used to limit the position of the paperboard 12. The pushing member 6 is slidably connected to the support 1, and the pushing member 6 can approach or move away from the limiting member 5, and is used to push the paperboard 12 to move toward the support 1. The projection of the tool 2 on the placement surface 101 is located between the limiting member 5 and the pushing member 6, that is, the avoidance groove 102 is arranged on the limiting member 5 and the pushing member 6.

[0067] In this embodiment, during the cutting process, the cardboard 12 is placed between the pusher 6 and the stopper 5, and then the second drive device 7 drives the pusher 6 to move in the direction close to the stopper 5, so that the cardboard 12 abuts against the stopper 5, and then the cutter 2 cuts the cardboard 12. Since the distance between the cutter 2 and the stopper 5 is accurate, after the pusher 6 pushes the cardboard 12 to abut against the stopper 5, the cardboard 12 is in the correct cutting position, so that after the cutter 2 cuts the cardboard 12, the size of the cardboard 12 is more accurate. In addition, during the cutting process, the cardboard 12 is limited by the pusher 6 and the stopper 5, which can prevent the cardboard 12 from shifting, thereby ensuring the cutting effect and cutting accuracy of the cardboard 12 by the cutter 2.

[0068] Optionally, the second driving device 7 can be configured as a pneumatic cylinder, an oil cylinder or a screw nut driving mechanism.

[0069] refer to Figure 10-11 As shown, in some embodiments provided by the utility model, the cutting device further includes a pressing device 9. The pressing device 9 is arranged on the support 1, and the pressing device 9 is used to press the paperboard 12. In this embodiment, the pressing device 9 presses the paperboard 12, which can avoid the problem of displacement of the paperboard 12 during the cutting process, thereby ensuring the cutting effect and cutting accuracy of the paperboard 12.

[0070] Optionally, the pressing device 9 includes a second mounting seat 901, a third driving device 902 and a pressing plate 903. The second mounting seat 901 is arranged on the support 1 and connected to the support 1. The third driving device 902 is installed on the second mounting seat 901, and the third driving device 902 is connected to the pressing plate 903, and the third driving device 902 is used to drive the pressing plate 903 to move toward or away from the placement surface 101, so that the pressing plate 903 can press or loosen the paperboard 12. With such an arrangement, the structure of the pressing device 9 is relatively simple. Furthermore, the clamping device 9 also includes a guide rod, the clamping plate 903 is connected to the guide rod, and the guide rod is slidably connected to the second mounting seat 901. By providing the guide rod, the deflection torque on the clamping plate 903 can be borne, thereby ensuring the clamping effect of the clamping plate 903 and reducing the deflection torque on the third drive device 902, so that the third drive device 902 only provides thrust, thereby reducing the probability of damage to the third drive device 902 and extending the service life of the third drive device 902. Optionally, for example, the second mounting seat 901 is set as a gantry structure, and the clamping plate 903 and the third drive device 902 are set on the crossbeam of the gantry structure, so that the second mounting seat 901 can provide a more stable support effect for the clamping plate 903.

[0071] Optionally, the third driving device 902 can be configured as a pneumatic cylinder, an oil cylinder or a screw nut driving mechanism.

[0072] In some embodiments provided by the utility model, the position of the limiter 5 is adjustable on the support 1 along the direction approaching or away from the limiter 5. In this embodiment, in actual use, the position of the limiter 5 can be adjusted along the direction approaching or away from the limiter 5 according to the requirements for the size of the cardboard 12, so as to change the distance between the limiter 5 and the cutter 2, thereby changing the cutting size of the cardboard 12. Such a setting enables the cutting device to cut cardboards 12 of different sizes, making the use of the cutting device more flexible and convenient.

[0073] In some embodiments provided by the utility model, the limiter 5 is slidably connected to the support 1. The cutting device further includes a fourth drive device 10, which is mounted on the support 1 and connected to the limiter 5, so that the fourth drive device 10 can drive the limiter 5 to move. In this way, when it is necessary to adjust the position of the limiter 5 on the support 1, the limiter 5 can be directly driven to move by the fourth drive device 10, which makes the adjustment more convenient and quick, and the limiter 5 is driven by the fourth drive device 10, so that no manual adjustment is required, which saves time and effort and is easy to realize automatic control.

[0074] Optionally, the fourth driving device 10 can be configured as a pneumatic cylinder, an oil cylinder or a screw nut driving mechanism.

[0075] In some embodiments provided by the present invention, the cutting device further comprises a guide member 8. The guide member 8 can be set as a guide plate. Two guide members 8 are provided, and the two guide members 8 are respectively arranged on both sides of the moving path of the paperboard 12 and are used to guide the paperboard 12.

[0076] In this embodiment, when the pusher 6 pushes the cardboard 12, the guide members 8 on both sides of the moving path of the cardboard 12 guide the cardboard 12, which can avoid the problem of the pusher 6 pushing the cardboard 12 off-center, ensuring that the cardboard 12 is in a correct posture, thereby improving the cutting accuracy and cutting effect. In addition, when the cutter 2 cuts the cardboard 12, the guide members 8 can limit the cardboard 12 to prevent the cardboard 12 from moving.

[0077] refer to Fig. 9 As shown, in some embodiments provided by the present invention, along the arrangement direction of the two guide members 8, at least one guide member 8 is adjustably arranged on the support 1. For example, the adjustable direction of the guide member 8 is perpendicular to the moving direction of the paperboard 12.

[0078] In this embodiment, by making at least one guide member 8 adjustable in position on the support 1, on the one hand, the distance between the two guide members 8 can adapt to cardboards 12 of different sizes, thereby improving the compatibility and flexibility of the cutting device; on the other hand, when the cardboard 12 is not placed in an correct position, the cardboard 12 can be pushed to the correct position by the guide member 8 to ensure the cutting effect of the cardboard 12.

[0079] Optionally, the guide member 8 is slidably connected to the support 1. The cutting device further includes a fifth driving device 11. The fifth driving device 11 is mounted on the support 1, and the fifth driving device 11 is connected to the guide member 8, and the fifth driving device 11 is used to drive the guide member 8 to move. In this way, when it is necessary to adjust the position of the guide member 8 on the support 1, the limit member 5 can be directly driven to move by the fifth driving device 11, and the adjustment is more convenient and quick. In addition, by driving the limit member 5 by the fifth driving device 11, there is no need for manual adjustment, which saves time and effort and is convenient for realizing automatic control.

[0080] Optionally, the fifth driving device 11 can be configured as a pneumatic cylinder, an oil cylinder or a screw nut driving mechanism.

[0081] The present invention also provides a paperboard 12 in the embodiment of the present invention. The paperboard 12 includes but is not limited to corrugated paperboard 12.

[0082] Specifically, at least a portion of the edge of the paperboard 12 is configured as a corrugated structure 3 .

[0083] The wavy structure 3 of the edge of the cardboard 12 makes the edge of the cardboard 12 uneven, that is, the edge of the cardboard 12 is discontinuous. This discontinuity will cause the edge to form a relatively small and relatively blunt contact point, making the stress distribution of the edge more dispersed and the pressure point smaller. Therefore, it can be avoided that the edge of the cardboard 12 applies pressure more concentratedly and more directly, thereby reducing the probability of the edge of the cardboard 12 scratching the user.

[0084] refer to Figure 2 and Figure 7 As shown, in some embodiments provided by the present invention, the wavy structure 3 includes a first arc segment 301 and a second arc segment 302. Along the extension direction of the wavy structure 3, the first arc segment 301 and the second arc segment 302 are alternately arranged and connected, and the bending directions of the first arc segment 301 and the second arc segment 302 are opposite.

[0085] In this embodiment, after the paperboard 12 is cut by the cutter 2 , the wavy structure 3 at the edge of the paperboard 12 is smooth as a whole, without any sharp point structure, and is not prone to the problem of being hooked or stabbed.

[0086] In some embodiments provided by the present invention, reference Figure 2 As shown, the curvature radius of the first arc segment 301 is greater than the curvature radius of the second arc segment 302, and the first arc segment 301 is bent toward the inner side of the paperboard 12 to form a concave edge of the paperboard 12, and the second arc segment is bent toward the outer side of the paperboard 12 to form a convex edge of the paperboard 12. Figure 7 As shown, the protrusions on the edge of the paperboard 12 are relatively small, and the spacing between the protrusions is relatively large, which can further disperse the stress distribution on the edge, thereby further reducing the probability of the edge of the paperboard 12 scratching the user.

[0087] Of course, the wavy structure 3 is not limited to being set in the form of the first arc segment 301 and the second arc segment 302. For example, Figure 3 As shown, in other embodiments provided by the present invention, the wavy structure 3 includes a third arc segment 303 and a straight segment 304. Along the extension direction of the wavy structure 3, the third arc segment 303 and the straight segment 304 are alternately arranged and connected. In this way, the number of arc segments of the wavy structure 3 is relatively small, thereby simplifying the structure of the tool 2 and reducing the difficulty of producing the tool 2.

[0088] Furthermore, the third arc segment 303 and the straight segment 304 are connected by an arc transition to avoid forming a tip at the connection portion between the third arc segment 303 and the straight segment 304 , thereby avoiding forming a tip structure at the edge of the paperboard 12 .

[0089] The wavy structure 3 is not limited to the third arc segment 303 and the straight line segment 304. Figure 4-Figure 6 As shown, in other embodiments provided by the present invention, the crest or trough of the wave-shaped structure 3 is set as a trapezoid 305 or a rectangle 306. In this way, the wave-shaped structure 3 does not need to be provided with an arc segment, thereby simplifying the structure of the tool 2 and reducing the difficulty of producing the tool 2.

[0090] Furthermore, the vertices of the trapezoid 305 or the vertices of the rectangle 306 are set to arc structures to reduce the generation of sharp points of the trapezoid 305 or the rectangle 306, thereby avoiding the formation of sharp point structures at the edge of the paperboard 12.

[0091] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A cutting tool, characterized in that: The cutter (2) is adapted to be movably arranged so that the blade (201) of the cutter (2) can act on the paperboard (12) to be cut, the blade (201) being arranged as a wave-shaped structure (3), and a preset angle exists between the wave direction of the wave-shaped structure (3) and the moving direction of the cutter (2).

2. The tool according to claim 1, characterized in that The wavy structure (3) comprises a first arc segment (301) and a second arc segment (302); along the extension direction of the wavy structure (3), the first arc segment (301) and the second arc segment (302) are alternately arranged and connected; and the first arc segment (301) and the second arc segment (302) have opposite bending directions; Alternatively, the wavy structure (3) comprises a third arc segment (303) and a straight segment (304), and along the extension direction of the wavy structure (3), the third arc segment (303) and the straight segment (304) are alternately arranged and connected; Alternatively, the wave crests or wave troughs of the wave-shaped structure (3) are arranged in a trapezoidal shape (305) or a rectangular shape (306).

3. A cutting device, characterized in that: include: A support (1), wherein the support (1) is provided with a placement surface (101) for placing a cardboard (12) to be cut; According to the tool (2) of claim 1 or 2, the blade (201) faces the placement surface (101), and the tool (2) is movably arranged in a direction approaching or moving away from the placement surface (101), so that the blade (201) can act on the paperboard (12).

4. The cutting device according to claim 3, characterized in that: It also comprises a first driving device (4), wherein the first driving device (4) is connected to the tool (2) and is used to drive the tool (2) to move.

5. The cutting device according to claim 3, characterized in that: The cutting device further comprises a limiting member (5), a pushing member (6) and a second driving device (7); The limiting member (5) is arranged on the support (1), and is used to limit the position of the paperboard (12). The pushing member (6) is slidably connected to the support (1). The pushing member (6) can approach or move away from the limiting member (5), and is used to push the paperboard (12) to move in a direction close to the support (1). The projection of the tool (2) on the placement surface (101) is located between the limiting member (5) and the pushing member (6).

6. The cutting device according to claim 5, characterized in that The position-limiting member (5) is arranged on the support (1) in an adjustable manner along a direction approaching or moving away from the position-limiting member (5).

7. The cutting device according to claim 5, characterized in that It also comprises a guide member (8), wherein two guide members (8) are provided, and the two guide members (8) are respectively provided on both sides of the moving path of the paperboard (12) and are used to guide the paperboard (12).

8. The cutting device according to claim 7, characterized in that Along the arrangement direction of the two guide members (8), at least one of the guide members (8) is arranged on the support (1) in an adjustable manner.

9. The cutting device according to claim 3, characterized in that: It also comprises a pressing device (9), which is arranged on the support (1) and is used to press the paperboard (12).

10. A paperboard, characterized in that: At least part of the edge of the paperboard (12) is configured as a wavy structure (3), wherein: The wavy structure (3) comprises a first arc segment (301) and a second arc segment (302); along the extension direction of the wavy structure (3), the first arc segment (301) and the second arc segment (302) are alternately arranged and connected; the first arc segment (301) and the second arc segment (302) have opposite bending directions; and the curvature radius of the first arc segment (301) is greater than the curvature radius of the second arc segment (302); Alternatively, the wavy structure (3) comprises a third arc segment (303) and a straight segment (304), and along the extension direction of the wavy structure (3), the third arc segment (303) and the straight segment (304) are alternately arranged and connected; Alternatively, the wave crests or wave troughs of the wave-shaped structure (3) are arranged in a trapezoidal shape (305) or a rectangular shape (306).

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