Punching knife for cutting head, cutting head and cutting equipment

Abstract

The utility model relates to a punching knife for a cutting head, the cutting head and cutting equipment, the lower end of the punching knife is provided with a first cutting edge inclined to the vertical direction, the punching knife is characterized in that the knife back, deviating from the first cutting edge, of the punching knife is further provided with a second cutting edge, and the lower end of the first cutting edge is connected with the lower end of the second cutting edge; according to the punching cutter, drilling work can be completed in a more efficient and labor-saving mode, the outline of a drilled hole is very smooth, burrs do not exist, and market requirements are better met.

Description

Technical Field

[0001] The utility model relates to the technical field of punching knives, in particular to a punching knife for a cutting head, a cutting head and a cutting device. Background Art

[0002] In the processing of materials such as clothing, textiles and leather products, the fabric cutting process is usually involved. In the existing cutting process, cutting equipment (or cutting machine, cutting bed) is usually used to perform cutting. The existing cutting equipment usually includes a frame for carrying, a support table for supporting the fabric, a controller, a position adjustment mechanism and a cutting head, etc. The position adjustment mechanism is usually arranged on the frame, and the cutting head is usually arranged on the position adjustment mechanism and corresponds to the support table below. The cutting head is equipped with a punching knife (or blade, vibrating knife, etc.), and the controller is electrically connected to the position adjustment mechanism and the cutting head, etc., respectively. The position adjustment mechanism is used to adjust the position of the cutting head. The cutting head drives the punching knife to perform cutting movement in the vertical direction under the control of the controller.

[0003] The existing cutting head is not only equipped with a punching power, which is connected to the punching knife for driving the punching knife to reciprocate in the vertical direction so as to cut the tensioned fabric in the vertical direction; the existing cutting head is also equipped with a rotating power, which is connected to the punching knife for driving the punching knife to rotate, so as to adjust the direction of the cutting edge in the punching knife or use the rotating punching knife to drill holes in the fabric; since the existing punching knife mainly performs cutting movement in the vertical direction, the existing punching knife is usually constructed as a long strip plate structure, such as Figure 1 As shown, the lower end of the punching knife is configured to be tilted in the vertical direction, so that the lower end of the punching knife is in a pointed shape. Usually, a cutting edge is processed at the lower end of the punching knife, so that the processed cutting edge is also tilted in the vertical direction, so that the cutting edge can not only play a role in cutting the fabric when the punching knife reciprocates up and down, but also can play a role in cutting the fabric when the punching knife rotates, so as to play a role in drilling holes in the fabric. However, it is found in actual applications that when the punching knife of this structure is used for rotary drilling, burrs are prone to appear on the contour of the hole, resulting in an unsmooth contour of the hole, which affects both the aesthetics of the fabric and the processing accuracy of the hole, and needs to be solved urgently. Summary of the invention

[0004] The first aspect of the utility model aims to solve the problem that when using the existing punching cutter to drill holes, the contour of the hole is prone to burrs and is not smooth. A new punching cutter is provided, which can not only complete the drilling work more efficiently and labor-savingly, but also the contour of the drilled hole is very smooth without burrs. The main concept is:

[0005] A punching knife for a cutting head, wherein the lower end of the punching knife is configured with a first cutting edge inclined to the vertical direction, a second cutting edge is configured on the back of the punching knife away from the first cutting edge, and the lower end of the first cutting edge is connected to the lower end of the second cutting edge. In the present scheme, a first cutting edge inclined in the vertical direction is constructed at the lower end of the punching knife so that the punching knife can play a role in cutting the fabric when it reciprocates up and down; a second cutting edge is constructed on the back of the punching knife away from the first cutting edge, and the lower end of the first cutting edge is connected to the lower end of the second cutting edge, not only the lower end of the punching knife is sharper and more convenient for rotary cutting and drilling on the fabric, but also when the punching knife is driven to rotate and drill, on the one hand, the back of the punching knife will not rub the contour of the drilled hole and aggravate the burr phenomenon, and on the other hand, the second cutting edge can also play a role in rotary cutting and can form a rotary cutting cooperation with the first cutting edge. Through the cooperation between the first cutting edge and the second cutting edge, the number of cutting times per unit time or unit rotation speed can be doubled, which not only can complete the drilling work more efficiently and labor-savingly, but also the contour of the drilled hole is very smooth and free of burrs, effectively solving the shortcomings of the prior art.

[0006] Preferably, the length of the second cutting edge is greater than that of the first cutting edge, so as to meet the drilling requirements of larger and thicker fabrics.

[0007] Preferably, the first cutting edge is a double-sided cutting edge; the second cutting edge is a double-sided cutting edge. This not only makes the third cutting edge and the second cutting edge sharper and more conducive to high-speed up and down cutting, but also during rotary cutting, whether it is forward or reverse, the cooperation of the first cutting edge and the second cutting edge can achieve a better rotary cutting effect, which is conducive to a smoother cutting edge.

[0008] Preferably, the second cutting edge is arranged along the vertical direction.

[0009] The second aspect of the utility model is to solve the problem of better processing of untensioned fabrics and fabric edges. Furthermore, the punching knife is also constructed with a third cutting edge, and the third cutting edge is constructed on the upper side of the first cutting edge, and the third cutting edge faces upward. In this solution, by constructing the third cutting edge on the punching knife, the third cutting edge is located on the upper side of the first cutting edge, and the cutting edge of the third cutting edge faces upward, so that the third cutting edge can form a cutting cooperation with the fixed knife installed on the cutting head, so as to process the untensioned fabrics and fabric edges by cutting, and achieve a better cutting effect.

[0010] Preferably, the third cutting edge is configured to be inclined to the horizontal direction, which can not only better cut fabrics, but also be suitable for cutting fabrics of different thicknesses, thus solving the problem of efficient cutting of fabrics of different thicknesses.

[0011] Preferably, the horizontal inclination angle of the third cutting edge is 1 to 15 degrees. Not only can the fabric be cut better, but it can also be applied to cutting fabrics of different thicknesses, solving the problem of efficient cutting of fabrics of different thicknesses.

[0012] Preferably, the third cutting edge is configured on the upper side of the punching knife away from the first cutting edge, so that the cutting edge can be located just above the first cutting edge, and the working mode can be switched more accurately and efficiently by lifting.

[0013] Preferably, the third cutting edge is a single-sided cutting edge, so as to form a sharper cutting match with the fixed knife.

[0014] Preferably, the punching knife includes a connecting part and a blade head, the blade head is connected to the lower end of the connecting part and protrudes one side of the connecting part, the first cutting edge and the second cutting edge are respectively constructed on both sides of the lower end of the blade head, and the third cutting edge is constructed at the upper end of the blade head, and the third cutting edge corresponds to the first cutting edge below.

[0015] Preferably, the connecting portion adopts a strip structure; the blade head is constructed in a triangular structure or a quadrilateral structure.

[0016] Preferably, the punching blade is constructed as a plate-like structure, which is convenient for production and manufacturing.

[0017] Preferably, the punching blade can be made of tungsten steel plate.

[0018] The third aspect of the utility model aims to solve the problem that when the existing punching knife drills a hole, the contour of the hole is prone to burrs and is not smooth. A cutting head is provided, including a punching module, the punching module includes a punching power, a rotating power and the punching knife, the punching power is connected to the punching knife for driving the punching knife to perform a cutting movement in a vertical direction; the rotating power is connected to the punching knife for driving the punching knife to perform a rotating cutting movement.

[0019] In the fourth aspect of the present utility model, it is necessary to solve the problem that when the existing cutting head cuts fabrics that are not tensioned or at the edges of fabrics, it is very difficult to cut accurately or even impossible to cut. Further, the punching module further includes a fixedly installed fixed knife, and the fixed knife is configured with a fourth edge adapted to the third edge, the fourth edge facing the third edge, and a cutting opening is formed between the third edge and the fourth edge. In this solution, by configuring the fixed knife and forming a cutting opening for cutting the fabric between the third edge and the fourth edge, during use, the fixed knife can remain stationary, while the third edge can reciprocate vertically under the drive of the punching power, so that the third edge can reciprocate relative to the fourth edge, thereby achieving the purpose of cutting the fabric. This cutting head can not only cut fabrics in a good tension state using the first edge, but also cut fabrics that are not tensioned through the cooperation of the third edge and the fourth edge, effectively solving the problems of uneven cutting and deviation of the cutting line existing in the prior art, and can achieve better cutting effects; at the same time, it can also accurately cut the edges of the fabric by cutting, which can not only solve the problem that the edges of the fabric are relatively loose and it is not easy to accurately cut through the first edge, but also is not prone to interference and can cut to the edge.

[0020] A cutting device includes the above-mentioned cutting head. When the cutting head is configured with a fixed knife, the cutting device can not only cut fabrics in a traditional way, but also cut fabrics by cutting, effectively solving the problems existing in the prior art.

[0021] Compared with the prior art, using a punching knife, a cutting head, and a cutting device provided by the present utility model can not only complete the drilling work more efficiently and labor - savingly, but also the contour of the drilled hole is very smooth without burrs, better meeting the market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0023] Figure 1 It is the front view of a punching knife provided by an embodiment of the present utility model.

[0024] Figure 2 For Figure 1 the rear view.

[0025] Figure 3 For Figure 1 the right view.

[0026] Figure 4 is Figure 1 the left view of

[0027] Figure 5 The structure diagram of a fixed knife provided by an embodiment of the present utility model.

[0028] Figure 6 The structure diagram of a cutting head provided by an embodiment of the present utility model, without the fixed knife assembled.

[0029] Figure 7 is Figure 6 the rear view of

[0030] Figure 8 is Figure 7 the partial sectional view of

[0031] Figure 9 The partial structure diagram at the clamping component in a cutting head provided by an embodiment of the present utility model.

[0032] Figure 10 is Figure 9 the front view of

[0033] Figure 11 is Figure 9 the left view of

[0034] Figure 12 is Figure 7 the right view of , with the fixed knife assembled.

[0035] Explanation of the markings in the figure: Support frame 1; Punching knife 2, connecting part 21, knife head part 22, first cutting edge 23, second cutting edge 24, third cutting edge 25; Fixed knife 3, fourth cutting edge 31, mounting hole 32, cutting opening 33; Punching power 4, crank 41, connecting rod 42, sliding component 43, transmission rod 44, mounting head 45, limiting protrusion 46; Transmission seat 5, guiding hole 51, guiding notch 52; Clamping component 6, first through hole 61, second through hole 62; Rotating power 7, second transmission mechanism 71, driving wheel 711, driven wheel 712, synchronous belt 713; Bearing 8. Detailed implementation manners

[0036] The technical scheme 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 only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0037] Example 1

[0038] The present embodiment provides a cutting head, including a support frame 1 and a punching module arranged on the support frame 1, wherein the punching module includes a punching power 4, a first transmission mechanism, a punching knife 2 and a fixedly installed fixed knife 3.

[0039] During implementation, the support frame 1 mainly plays the role of bearing and facilitating installation, and this embodiment does not limit the structure of the support frame 1.

[0040] In this embodiment, the lower end of the punching knife 2 is configured to be inclined to the vertical direction. Figures 1-4 As shown, the lower end of the punching knife 2 is configured with a first cutting edge 23, so that the first cutting edge 23 is also inclined in the vertical direction, as shown in FIG. Figures 1-4 At the same time, in this embodiment, the back of the punching knife 2 away from the first cutting edge 23 is also configured with a second cutting edge 24, and the lower end of the first cutting edge 23 is connected to the lower end of the second cutting edge 24, as shown in FIG. Figures 1-4 As shown, a sharper blade tip is formed at the lowest end of the punching knife 2, which is not only more conducive to inserting the fabric, but also more convenient for rotary cutting and drilling on the fabric.

[0041] In implementation, the length of the second cutting edge 24 may be preferably configured to be greater than the length of the first cutting edge 23. Figures 1-4 As shown, in order to meet the drilling requirements of larger and thicker fabrics. The second cutting edge 24 can be arranged in the vertical direction. Of course, in other embodiments, the second cutting edge 24 can also be inclined to the vertical direction.

[0042] In implementation, the first cutting edge 23 and the second cutting edge 24 may preferably be double-sided cutting edges, such as Figures 1-4 As shown, not only the third cutting edge 25 and the second cutting edge 24 are sharper and more conducive to high-speed up and down cutting movements, but also when performing rotary cutting, whether it is forward or reverse, the cooperation of the first cutting edge 23 and the second cutting edge 24 can be utilized to achieve a better rotary cutting effect, which is conducive to a smoother cutting edge.

[0043] In a further embodiment, the punching knife 2 is further configured with a third cutting edge 25, such as Figures 1-4 As shown, the third cutting edge 25 is constructed on the upper side of the first cutting edge 23, and the third cutting edge 25 faces upward (including facing directly upward and facing obliquely upward, which will not be described in detail later). The third cutting edge 25 can form a cutting cooperation with the fixed knife 3 installed on the cutting head, so as to process the untensioned fabric and the edge of the fabric by cutting, and achieve a better cutting effect.

[0044] In practice, the third cutting edge 25 may be arranged horizontally, but in the preferred implementation manner provided in this embodiment, the third cutting edge 25 may be arranged tilted along the horizontal direction, such as Figures 1-4 As shown, it can not only cut fabrics better, but also be suitable for cutting fabrics of different thicknesses, solving the problem of efficient cutting of fabrics of different thicknesses. In implementation, the inclination angle of the third cutting edge 25 can be determined according to actual needs, as long as it can match the fixed knife 3. For example, the horizontal inclination angle θ of the third cutting edge 25 can be preferably 1 to 15 degrees, which can better adapt to fabrics of different thicknesses. Figures 1-4 As shown, in this embodiment, the horizontal inclination angle of the third cutting edge 25 is 5 degrees.

[0045] Since the third cutting edge 25 can be constructed above the first cutting edge 23, during implementation, the third cutting edge 25 can be preferably constructed on the upper side of the punching knife 2 away from the first cutting edge 23, such as Figures 1-4 As shown, the third cutting edge 25 is located directly above the first cutting edge 23, which not only simplifies the structure of the entire punching knife 2, but also makes it easier to accurately and efficiently switch the working mode by lifting. In order to facilitate the coordination with the fixed knife 3, the third cutting edge 25 can preferably be a single-sided cutting edge, such as Figures 1-4 shown.

[0046] In practice, the punching blade 2 can be constructed as a plate-like structure as a whole. Figures 1-4 More specifically, the punching knife 2 may include a connecting portion 21 and a cutting head 22, wherein the cutting head 22 is connected to the lower end of the connecting portion 21 and protrudes from one side of the connecting portion 21, as shown in FIG. Figures 1-4 As shown, the first cutting edge 23 and the second cutting edge 24 can be respectively constructed on both sides of the lower end of the cutter head 22. Figures 1-4 As shown, the third cutting edge 25 can be constructed at the upper end of the cutter head 22 and corresponds to the first cutting edge 23 below. Figures 1-4As shown, the third cutting edge 25 can preferably be constructed on the upper edge of the protruding connecting part 21 of the tool head 22. In a specific implementation, the connecting part 21 can preferably adopt a strip structure, as shown in the figure, for easy installation and disassembly; correspondingly, the tool head 22 can preferably be constructed as a triangular structure (such as Figure 1 and Figure 2 shown) or a quadrilateral structure (preferably a trapezoidal structure). In this embodiment, the punching die 2 can preferably be made of tungsten steel plate to improve the strength and stiffness of the punching die 2.

[0047] To adapt to the punching die 2, in this embodiment, the fixed die 3 can also be integrally constructed as a plate-like structure, as Figure 5 shown, for better adaptation to the punching die 2. For example, in this embodiment, the fixed die 3 can preferably adopt an L-shaped plate-like structure, as Figure 5 shown. The fixed die 3 is constructed with a fourth cutting edge 31 adapted to the third cutting edge 25. In implementation, the fourth cutting edge 31 can preferably be constructed on the lower edge of the fixed die 3, as Figure 5 shown, the fourth cutting edge 31 faces downward (including two cases of facing directly downward and facing obliquely downward, which will not be elaborated later), as shown in 9- Figure 12 shown, so that after assembly, the fourth cutting edge 31 faces the third cutting edge 25, and a cutting opening 33 for cutting the fabric is formed between the third cutting edge 25 and the fourth cutting edge 31, as Figures 9-12 shown; in use, the fixed die 3 can remain stationary, while the third cutting edge 25 can reciprocate vertically under the drive of the punching power, so that the third cutting edge 25 can reciprocate relative to the fourth cutting edge 31, thereby achieving the purpose of cutting the fabric; making this cutting head can not only use the first cutting edge 23 to punch the fabric in a well-tensioned state, but also cut the non-tensioned fabric through the cooperation of the third cutting edge 25 and the fourth cutting edge 31, effectively solving the problems such as uneven punching and deviation of the cutting line when the fabric is not tensioned, and can achieve a better cutting effect; at the same time, the edge of the fabric can also be precisely cut by cutting, which can not only solve the problem that the edge of the fabric is relatively loose and is not easy to be precisely cut by the first cutting edge, but also is not easy to cause interference and solve the problem of cutting to the edge.

[0048] In implementation, the fourth cutting edge 31 can be horizontally arranged (at this time, the fourth cutting edge 31 faces directly downward), or can be inclined relative to the horizontal direction, as Figure 5 shown, at this time, the fourth cutting edge 31 faces obliquely downward, and the horizontal inclination angle of the fourth cutting edge 31 can be determined according to actual needs. As a preference, the horizontal inclination angle of the fourth cutting edge 31 can also preferably be 1 to 15 degrees. As Figure 5 shown, the upper end of the fixed die 3 is also constructed with a mounting hole 32 for realizing the detachable installation of the fixed die 3 by using fasteners.

[0049] In this embodiment, the punching power 4 is drivingly connected to the punching knife 2 through a first transmission mechanism, and is used to drive the punching knife 2 to reciprocate in the vertical direction, so as to achieve the effect of making the punching knife 2 vibrate up and down, so that the punching knife 2 can perform a cutting motion in the vertical direction to achieve the purpose of cutting the fabric. During implementation, the punching power 4 and the first transmission mechanism in the punching module can be implemented using existing technologies. For example, during implementation, the punching power 4 can be an electric motor. The first transmission mechanism is used to convert the rotational motion of the electric motor into a linear reciprocating motion for driving the punching knife 2 to perform a cutting action. During implementation, the first transmission mechanism can be implemented using existing technologies. As an example, the first transmission mechanism can adopt a crank-slider mechanism, as Figures 6-8 shown, the crank-slider mechanism includes a crank 41, a connecting rod 42, a sliding member 43, and a transmission seat 5 adapted to the sliding member 43. The crank 41 is connected to the output shaft of the electric motor, and the electric motor is used to drive the crank 41 to rotate. One end of the connecting rod 42 is hinged to the crank 41, and the hinged position is offset from the rotation center of the crank 41, as Figures 6-8 shown, the other end of the connecting rod 42 is hinged to the sliding member 43. The sliding member 43 is movably constrained by the transmission seat 5. The transmission seat 5 is connected to the support frame 1 and is used to guide the sliding member 43 to linearly slide in the vertical direction, as Figure 8 shown, the punching knife 2 is arranged below the sliding member 43 and is drivingly connected to the sliding member 43. During operation, the punching power 4 drives the crank 41 to rotate, and the crank 41 drives the sliding member 43 to perform a linear reciprocating motion relative to the transmission seat 5 through the connecting rod 42. The punching knife 2 moves synchronously with the sliding member 43 under the drive of the sliding member 43, so that the punching knife 2 can perform a cutting motion in the vertical direction.

[0050] During assembly, the fixed knife 3 can be installed on the punching module or the support frame 1. For example, the fixed knife 3 can be installed on the transmission seat 5. As an example, as Figures 9-11 shown, it further includes a clamping member 6. The clamping member 6 is configured with a plurality of first through holes 61. The clamping member 6 can be detachably clamped to the transmission seat 5 or the support frame 1 through fasteners such as bolts or screws adapted to the first through holes 61. The transmission seat 5 is fixedly installed on the support frame 1; the clamping member 6 is further configured with a second through hole 62 adapted to the mounting hole 32, as Figures 9-11 shown, so that during assembly, the fixed knife 3 can be detachably installed on the clamping member 6 through fasteners such as bolts or screws adapted to the mounting hole 32 and the second through hole 62. During implementation, the clamping member 6 can preferably adopt a cylindrical structure, as Figure 9 shown. The fixed knife 3 is installed on one side of the punching knife 2, and the position of the fourth cutting edge 31 is higher than that of the first cutting edge 23, as Figures 9-12 shown, and when the punching knife 2 moves to the lowest point, at least a part of the fourth cutting edge 31 is higher than the third cutting edge 25 to ensure that the third cutting edge 25 and the fourth cutting edge 31 can achieve a cutting fit. AsFigure 11 As shown, the punching knife 2 can be parallel to the fixed knife 3 so that the third cutting edge 25 and the fourth cutting edge 31 can achieve better mutual cooperation. During assembly, the punching knife 2 and the fixed knife 3 can be fitted and installed. As Figure 11 shown, it is more conducive to the third cutting edge 25 and the fourth cutting edge 31 to achieve better cutting cooperation for better cutting of the fabric. In addition, during implementation, there can also be a certain gap between the punching knife 2 and the fixed knife 3, so that the punching knife 2 and the fixed knife 3 do not contact each other, thereby avoiding damage to the fabric caused by heat generation due to friction between the high-speed moving punching knife 2 and the fixed knife 3. In this embodiment, the transmission seat 5 can preferably adopt a guide cylinder.

[0051] It can be understood that during implementation, the transmission seat 5 can be an integrally formed component or can be composed of multiple components combined, and no further examples will be given here.

[0052] To drive the punching knife 2 to rotate, in an implementation manner provided in this embodiment, the punching module further includes a rotational power source 7, and the rotational power source 7 is in transmission connection with the punching knife 2 for driving the punching knife 2 to perform rotational cutting motion. As an example, the support frame 1 can be connected to a bracket through a bearing 8, so that the support frame 1 can rotate relative to the bracket, thereby enabling the entire punching module to rotate relative to the bracket; the rotational power source 7 can be arranged on the bracket and in transmission connection with the support frame 1, so that the entire punching module can be driven to rotate by the rotational power source 7 (the rotation center is along the vertical direction). This can not only achieve the purpose of driving the punching knife 2 to rotate, but also enable the punching knife 2 and the fixed knife 3 to rotate synchronously, so that the punching knife 2 and the fixed knife 3 always maintain a cooperative state.

[0053] During implementation, the rotational power source 7 can adopt a motor, and the rotational power source 7 can be in transmission connection with the support frame 1 through a second transmission mechanism 71. The second transmission mechanism 71 can adopt one or a combination of a belt transmission mechanism, a gear transmission mechanism, a chain transmission mechanism, etc., and no further examples will be given here. For example, the second transmission mechanism 71 can adopt a synchronous belt 713 transmission mechanism. The synchronous belt 713 transmission mechanism includes a driving pulley 711, a driven pulley 712, and a synchronous belt 713. The driving pulley 711 can be installed on the output shaft of the motor, the driven pulley 712 can be arranged on the transmission seat 5, and the synchronous belt 713 is tensioned between the driving pulley 711 and the driven pulley 712.

[0054] Embodiment 2

[0055] The main difference between this Embodiment 2 and the above Embodiment 1 lies in the different scheme for driving the punching knife 2 to rotate. Specifically, in the cutting head provided in this embodiment, the punching module further includes a rotational power source 7, a second transmission mechanism 71, a transmission rod 44, and a mounting head 45. Among them, the transmission seat 5 can be connected to the support frame 1 through a bearing 8, so that the transmission seat 5 can rotate relative to the support frame 1. AsFigures 6-8 As shown, the rotational power source 7 can be installed on the support frame 1. The rotational power source 7 is drivingly connected to the transmission seat 5 through a second transmission mechanism 71 so as to drive the transmission seat 5 to rotate by using the rotational power source 7. The transmission seat 5 is configured with a guiding hole 51 adapted to the sliding member 43. As Figure 8 shown, the guiding hole 51 is arranged in the vertical direction, and the center of the guiding hole 51 coincides with the rotation center of the transmission seat 5.

[0056] As Figures 6-8 shown, the sliding member 43 is slidably disposed in the guiding hole 51. In implementation, the guiding hole 51 is preferably configured as a circular hole, and the sliding member 43 is also configured as a cylindrical structure, and the outer diameter of the sliding member 43 is smaller than the inner diameter of the guiding hole 51, so that the sliding member 43 can linearly slide relative to the transmission seat 5, and the transmission seat 5 can rotate relative to the sliding member 43.

[0057] As Figure 8 shown, the upper end of the transmission rod 44 is connected to the sliding member 43 through a bearing 8, and the mounting head 45 is fixedly installed at the lower end of the transmission rod 44. A guiding notch 52 is configured on the side surface of the lower end of the transmission seat 5, and a limiting protrusion 46 adapted to the guiding notch 52 is configured on the mounting head 45. The limiting protrusion 46 is inserted into the guiding notch 52, and the limiting protrusion 46 and the guiding notch 52 form a moving pair in the vertical direction. As Figure 6 shown, the punching die 2 can be detachably installed on the mounting head 45 by a fastener. For example, the connecting portion 21 of the punching die 2 can be detachably constrained to the mounting head 45.

[0058] In use, the punching power source 4 can drive the sliding member 43 to vertically move up and down relative to the transmission seat 5. The sliding member 43 drives the transmission rod 44 to vertically move up and down, the transmission rod 44 drives the mounting head 45 to vertically move up and down, and the mounting head 45 drives the punching die 2 to vertically move up and down relative to the transmission seat 5, so as to achieve the purpose of driving the punching die 2 to perform a cutting movement in the vertical direction. At the same time, in use, the rotational power source 7 can drive the transmission seat 5 to rotate relative to the support frame 1. The transmission seat 5 drives the mounting head 45 to rotate through the cooperation of the guiding notch 52 and the limiting protrusion 46, and the mounting head 45 drives the punching die 2 to rotate relative to the support frame 1, so as to achieve the purpose of driving the punching die 2 to rotate.

[0059] In this embodiment, the fixed die 3 is installed on the transmission seat 5. As Figures 9-12 shown, the fixed die 3, the punching die 2 and the transmission seat 5 can rotate synchronously. The relative position between the fixed die 3 and the punching die 2 is as in Embodiment 1, which will not be elaborated here. In implementation, the fixed die 3 can be detachably installed on the clamping member 6 by a fastener such as a bolt or a screw, and the clamping member 6 can be detachably clamped to the lower end of the transmission seat 5 by a fastener such as a bolt or a screw. As Figure 9 or Figure 10 shown.

[0060] Example 3

[0061] This embodiment provides a cutting device, including the cutting head described in Embodiment 1 or Embodiment 2, and the cutting head is installed on a frame.

[0062] In order to facilitate switching the working mode of the cutting head, in a more perfect implementation, the cutting head can be installed on a position adjustment mechanism, and the position adjustment mechanism can be installed on a frame, so that the position and height of the cutting head can be adjusted by the position adjustment mechanism, so that the two working modes (i.e., cutting mode and cropping mode) can be conveniently switched by changing the height of the cutting head, which is very convenient and efficient. The position adjustment mechanism can be implemented by using existing technology, which will not be described in detail here.

[0063] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. A punching knife for a cutting head, wherein a lower end of the punching knife is configured with a first cutting edge inclined to the vertical direction, characterized in that, A second cutting edge is also formed on the knife back of the punching knife away from the first cutting edge, and the lower ends of the first cutting edge and the second cutting edge are connected.

2. The die cutter for a cutting head according to claim 1, characterized in that, The first cutting edge is a double-sided cutting edge; the second cutting edge is a double-sided cutting edge.

3. The punching cutter for a cutting head according to claim 1, characterized in that, The punching knife is further formed with a third cutting edge, which is formed on the upper side of the first cutting edge and faces upward.

4. The punching knife for a cutting head according to claim 3, characterized in that, The third cutting edge is formed to be inclined to the horizontal direction.

5. The die cutter for the cutting head according to claim 4, characterized in that, The horizontal inclination angle of the third cutting edge is 1 to 15 degrees; and / or, the third cutting edge is formed on the upper side of the punching knife away from the first cutting edge; and / or, the third cutting edge is a single-sided cutting edge; and / or, the punching knife is made of tungsten steel plate; and / or, the length of the second cutting edge is greater than that of the first cutting edge; the second cutting edge is arranged in the vertical direction.

6. The punching cutter for the cutting head according to any one of claims 4-5, characterized in that, The punching knife includes a connecting portion and a knife head portion. The knife head portion is connected to the lower end of the connecting portion and protrudes from one side of the connecting portion. The first cutting edge and the second cutting edge are respectively formed on both sides of the lower end of the knife head portion, and the third cutting edge is formed on the upper end of the knife head portion and corresponds to the first cutting edge below.

7. The punching cutter for a cutting head according to claim 6, characterized in that, The connecting portion is in a strip structure; the knife head portion is formed in a triangular structure or a quadrilateral structure; The punching knife is an integrally formed member.

8. A cutting head, comprising a punching module, characterized in that, The punching module includes a punching power, a rotational power, and the punching knife according to any one of claims 1-7. The punching power is in transmission connection with the punching knife and is used to drive the punching knife to make a cutting motion in the vertical direction; The rotational power is in transmission connection with the punching knife and is used to drive the punching knife to make a rotational cutting motion.

9. The cutting head according to claim 8, wherein It further includes a fixed cutting knife with a fourth cutting edge adapted to the third cutting edge. The fourth cutting edge faces the third cutting edge, and a cutting opening is formed between the third cutting edge and the fourth cutting edge.

10. A cutting device, characterized in that, It includes the cutting head according to any one of claims 8-9.

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