Flat cutting die and motor processing equipment

Abstract

The utility model belongs to the technical field of motor machining, and particularly relates to a flat cutting die and motor machining equipment. The flat cutting mold comprises a cutter structure and a plurality of cutter assemblies, the cutter structure comprises the cutter assemblies and a rotating disc chuck arranged in a rotating mode, the flat wire winding is located at the rotating center of the rotating disc chuck, one ends of the cutter assemblies are slidably connected with the rotating disc chuck, the other ends of the cutter assemblies extend towards the flat wire winding, and the cutter assemblies are arranged in the circumferential direction of the flat wire winding at intervals; any cutter assembly corresponds to the end part of one flat wire; and the driving structure is connected with the rotating faceplate and is used for driving the rotating faceplate to rotate around the central axis of the rotating faceplate, so that the rotating faceplate drives the cutter assemblies to move towards the flat wire winding and respectively cut the end parts of the flat wires. According to the flat cutting die, the cutter assemblies can be driven to move towards the flat wire windings so as to cut off the ends of the corresponding flat wires, the flat wire windings of different sizes can be placed in the center of the rotating disc chuck, and the application range of the flat cutting die is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor processing, in particular to a cutting die and motor processing equipment. Background Art

[0002] At present, the new flat wire motor uses a wire with a flat rectangular cross-section, which is different from the round wire used in traditional motors. The advantage of flat wires is their compact arrangement, which significantly increases the coil filling rate in the motor slot and avoids space waste. The increase in filling rate means that more wires can be placed in the coil, thereby generating a stronger magnetic field, thereby increasing the output power of the motor. The new flat wire motor fully meets the development needs of the electric drive system of new energy vehicles. Compared with traditional drive devices that are large, heavy and underpowered, flat wire motors have shown stronger competitiveness in the field of new energy vehicles.

[0003] In the manufacturing process of flat wire windings, the ends of the flat wires on the windings need to be cut to ensure the neatness of the windings while retaining the ends at specific positions. However, the sizes of flat wire windings required for motors of different powers are different. The existing flattening device is difficult to adapt to flat wire windings of different diameters when using a rotary cutting knife for cutting, resulting in limited applicability of the flattening device. Utility Model Content

[0004] The purpose of the embodiment of the present application is to provide a flattening die, which aims to solve the problem of how to cut off the flat wire ends of the flat wire winding and improve the scope of application.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] In a first aspect, a cutting die is provided for cutting off a flat wire end portion on a flat wire winding, wherein a plurality of flat wire ends are arranged at intervals around the circumference of the flat wire winding, and the cutting die comprises:

[0007] A cutter structure, comprising a cutter assembly and a rotatable faceplate, wherein the flat wire winding is located at the rotation center of the rotating faceplate, and one end of the cutter assembly is slidably connected to the rotating faceplate, and the other end of the cutter assembly extends toward the flat wire winding, and a plurality of the cutter assemblies are arranged at intervals along the circumference of the flat wire winding, and any of the cutter assemblies corresponds to one end of the flat wire; and

[0008] The driving structure is connected to the rotating faceplate and is used to drive the rotating faceplate to rotate around its central axis, so that the rotating faceplate drives each of the cutting knife assemblies to move toward the flat wire winding and cut each of the flat wire ends respectively.

[0009] In some embodiments, the rotating disc is provided with a driving groove, the extension path of the driving groove is a circular arc, a plurality of driving grooves are arranged at intervals around the central axis of the rotating disc, and one end of each cutting knife assembly is slidably disposed in each driving groove.

[0010] In some embodiments, the driving grooves are arranged in an array, and the bending directions of the driving grooves are the same.

[0011] In some embodiments, the cutting knife assembly includes a cutting knife, a guide slider, and a driving disk slidably disposed in the driving groove, the two ends of the guide slider are respectively connected to the cutting knife and the driving disk, and the side surface of the driving disk abuts against the groove wall of the driving groove.

[0012] In some embodiments, the cutter structure further includes a guide rail for guiding the guide slider to slide, and two guide rails are arranged on both sides of any guide slider.

[0013] In some embodiments, an avoidance through hole is opened at the center position of the rotating disc, and the cutting mold also includes a loading platform located at the avoidance through hole and used to carry the flat wire winding, and the loading platform is provided with a blanking through hole, and a plurality of the blanking through holes are arranged at intervals along the circumference of the loading platform, and each end of the flat wire is respectively penetrated by the blanking through hole.

[0014] In some embodiments, the loading platform is also provided with a guide groove, and a plurality of the guide grooves are arranged at intervals along the circumference of the loading platform, each of the guide grooves is respectively connected to each of the blanking holes, and one end of any of the cutting knife assemblies can slide into one of the guide grooves.

[0015] In some embodiments, the loading platform is rotatably arranged, and the cutting mold also includes a driven wheel, a driving wheel, a transmission belt and a loading driver. The driven wheel is arranged at one end of the loading platform, and the driving wheel is arranged on the rotating shaft of the loading driver. The two ends of the transmission belt are respectively connected to the driving wheel and the driven wheel to drive the loading platform to rotate through the loading driver.

[0016] In some embodiments, the driving structure includes a driving motor, a driving gear connected to the driving motor, and a rack arranged on the rotating faceplate and meshing with the driving gear.

[0017] In a second aspect, a motor processing device is provided, which includes the cutting die.

[0018] The beneficial effects of the present application are as follows: the flattening mold includes a cutter structure and a driving structure, the driving structure can drive the rotating disc to rotate around its central axis, and during the rotation of the rotating disc, it can drive each cutter component to move toward the flat wire winding to cut off the corresponding flat wire end, and flat wire windings of different sizes can be placed at the center position of the rotating disc, and then the cutter components are driven to move synchronously to complete the cutting of each flat wire end on the flat wire winding, thereby improving the application scope of the flattening mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or exemplary technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the assembly of the flattening die and the flat wire winding provided in the embodiment of the present application;

[0021] Figure 2 yes Figure 1 A schematic top view of a cutting die;

[0022] Figure 3 yes Figure 2 Explosion diagram of the cutting die;

[0023] Figure 4 yes Figure 3 A partial enlarged view of point A.

[0024] Among them, the reference numerals in the figure are:

[0025] 100, cutting die; 101, flat wire winding; 102, flat wire end; 103, positioning ring cover; 104, positioning seat; 106, accommodating chamber; 200, cutter structure; 300, driving structure; 301, driving motor; 302, gear; 303, rack; 401, loading driver; 402, driving wheel; 403, driven wheel; 404, loading platform; 201, rotating disc; 202, cutter assembly; 203, driving groove; 105, auxiliary bearing; 107, positioning plate; 2011, avoidance hole; 204, guide rail; 2021, guide slider; 2022, cutting knife; 2023, driving plate; 4041, blanking hole; 4042, guide groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] See also Figures 1 to 3 The embodiment of the present application provides a flattening mold 100 for cutting off a flat wire end 102 of a flat wire winding 101. The flat wire winding 101 is applied to the motor of a new energy vehicle. The flat wire winding 101 includes multiple flat wire layers arranged from the outside to the inside. Each flat wire layer includes multiple flat wires connected by plug-in wires. The cross-sectional shape of the flat wire is a polygon, and the flat wire generally has two flat wire ends 102.

[0029] The cutting die 100 is used to cut off a flat wire end 102 on a flat wire winding 101. A plurality of the flat wire ends 102 are arranged at intervals around the circumference of the flat wire winding 101. The cutting die 100 includes a cutter structure 200 and a drive structure 300.

[0030] See also Figures 1 to 3The cutter structure 200 includes a cutter assembly 202 and a rotatable disc 201, the flat wire winding 101 is located at the rotation center of the rotating disc 201 and above the rotating disc 201, one end of the cutter assembly 202 is slidably connected to the rotating disc 201, and the other end of the cutter assembly 202 extends toward the flat wire winding 101, and a plurality of cutter assemblies 202 are arranged at intervals along the circumference of the flat wire winding 101, and any of the cutter assemblies 202 corresponds to one of the flat wire ends 102. The driving structure 300 is used to drive the rotating faceplate 201 to rotate around its central axis. The driving structure 300 can drive the rotating faceplate 201 to rotate forward or reverse. When the rotating faceplate 201 rotates forward, it drives each cutter assembly 202 to move toward the flat wire winding 101 and cut each flat wire end 102 respectively. Any cutter assembly 202 moves along the radial direction of the rotating faceplate 201, and after moving into position, cuts off the corresponding flat wire end 102. When the rotating faceplate 201 rotates reversely, each cutter assembly 202 is driven by the rotating faceplate 201 to withdraw to the initial position. It can be understood that the cutting end of the cutter assembly 202 can move back and forth relative to the flat wire end 102, thereby realizing the cutting of the flat wire end 102, and after cutting off the flat wire end 102, it is withdrawn to facilitate the next cutting.

[0031] See also Figures 1 to 3 The cutting die 100 provided in the embodiment of the present application includes a cutter structure 200 and a driving structure 300. The driving structure 300 can drive the rotating disc 201 to rotate around its central axis. During the rotation of the rotating disc 201, the cutting die 202 can be driven to move toward the flat wire winding 101 to cut off the corresponding flat wire end 102. In addition, flat wire windings 101 of different sizes can be placed at the center position of the rotating disc 201, and then the cutting die 202 can be driven to move synchronously to complete the cutting of the flat wire ends 102 on the flat wire winding 101, thereby improving the application scope of the cutting die 100.

[0032] In some embodiments, the rotating flower disc 201 is provided with a driving groove 203, the extension path of the driving groove 203 is a circular arc, and a plurality of driving grooves 203 are arranged at intervals around the central axis of the rotating flower disc 201, and one end of each of the cutting knife assemblies 202 is slidably disposed in each of the driving grooves 203.

[0033] See also Figures 1 to 3Optionally, the extension path of the driving groove 203 is in an arc shape, so that the rotational motion of the rotating faceplate 201 can be converted into the linear motion of the cutter assembly 202, ensuring the stability and accuracy of the cutter assembly 202 during the sliding process. The multiple driving grooves 203 are arranged at intervals so that the cutter assemblies 202 can be evenly distributed. The rotating faceplate 201 drives the cutter assemblies 202 to move, thereby uniformly cutting the flat wire end 102, which helps to improve the consistency of cutting and reduce the error caused by the unstable cutting of the cutter assembly 202.

[0034] In some embodiments, the driving grooves 203 are arranged in an array, and the bending directions of the driving grooves 203 are the same.

[0035] See also Figures 1 to 3 Optionally, the array arrangement of each driving groove 203 has the same bending direction, so that the rotating disc 201 can drive each cutter assembly 202 to move synchronously. Each cutter assembly 202 is subjected to uniform force during the cutting process, which reduces vibration and wear during the cutting process, extends the service life of the equipment, and ensures the continuity and stability of the cutting process, further improving the accuracy of the cutting effect.

[0036] See also Figures 1 to 3 In some embodiments, the cutter assembly 202 includes a cutting knife 2022, a guide slider 2021, and a drive disk 2023 slidably disposed in the drive slot 203, the two ends of the guide slider 2021 are respectively connected to the cutting knife 2022 and the drive disk 2023, and the side surface of the drive disk 2023 abuts against the slot wall of the drive slot 203. It can be understood that the slot walls on both sides of the drive slot 203 are slidably abutted against the two sides of the drive disk 2023.

[0037] See also Figures 1 to 3 Optionally, the cutter assembly 202 includes a cutter 2022, a guide slider 2021 and a drive disk 2023, so that the cutter assembly 202 slides more smoothly and accurately in the drive slot 203. The connection of the guide slider 2021 ensures the stability and accuracy of the cutter 2022, and the side surface of the drive disk 2023 is in close contact with the slot wall of the drive slot 203, which reduces the offset and friction during the sliding process, improves the smoothness and reliability of the cutting process, and ensures a high-quality cutting effect.

[0038] See also Figures 1 to 3Optionally, the cross-sectional shape of the driving disk 2023 is circular, and the driving disk 2023 can be a bearing. The inner ring of the bearing is connected to the guide slider 2021, and the outer ring of the bearing abuts the inner wall of the driving groove 203, thereby reducing the friction between the driving disk 2023 and the groove wall of the driving groove 203, and improving the sliding stability of the guide slider 2021, so that the cutting knife 2022 can accurately cut off the corresponding flat wire end 102.

[0039] In some embodiments, the cutter structure 200 further includes a guide rail 204 for guiding the guide slider 2021 to slide, and two guide rails 204 are arranged on both sides of any guide slider 2021 .

[0040] See also Figures 1 to 3 Optionally, the two guide rails 204 can guide the guide slider 2021 to slide back and forth, thereby improving the stability of the cutter assembly 202 during the cutting process. Guide rails 204 are arranged on both sides of each guide slider 2021, ensuring the precise positioning of the cutter assembly 202 during the sliding process, reducing the error caused by the unstable sliding, and effectively improving the accuracy and consistency of the cutting process.

[0041] See also Figures 1 to 3 In some embodiments, an avoidance hole 2011 is provided at the center of the rotating face plate 201, and the cutting mold 100 also includes a loading platform 404 located at the avoidance hole 2011 and used to carry the flat wire winding 101, and the loading platform 404 is provided with a blanking hole 4041, and a plurality of blanking holes 4041 are arranged at intervals along the circumference of the loading platform 404, and each of the flat wire ends 102 is respectively penetrated by the blanking hole 4041.

[0042] See also Figures 2 to 4 Optionally, a avoidance hole 2011 is provided at the center of the rotating faceplate 201, so that the loading platform 404 can support the flat wire winding 101 at the avoidance hole 2011. The setting of the blanking hole 4041 enables the flat wire winding 101 to be stably placed on the loading platform 404, and after the flat wire end 102 is cut off, the flat wire winding 101 is discharged downward through the blanking hole 4041, thereby improving the waste discharge efficiency.

[0043] See also Figures 2 to 4In some embodiments, the loading platform 404 is further provided with a guide groove 4042, and a plurality of the guide grooves 4042 are arranged at intervals along the circumference of the rotating disc 201, and each of the guide grooves 4042 is respectively connected to each of the blanking through holes 4041, and one end of any cutter assembly 202 can slide into one of the guide grooves 4042, that is, the guide groove 4042 is used to guide the cutting end of the cutter assembly 202 to move toward the corresponding flat wire end 102, and after the cutting is completed, the cutter assembly 202 can be separated from the guide groove 4042.

[0044] See also Figures 2 to 4 It can be understood that the guide groove 4042 is used to guide the cutting knife 2022 to move toward the corresponding blanking hole 4041, so that the cutting knife 2022 can accurately cut off the flat wire end 102 located at the blanking hole 4041, and the flat wire end 102 falls from the blanking hole 4041 at the same time after being cut off.

[0045] Optionally, the guide groove 4042 enables the cutter assembly 202 to slide along the guide groove 4042 during the cutting process, further improving the stability and precision of the cutter. The guide grooves 4042 are arranged at intervals along the circumference, so that each cutter assembly 202 can accurately enter the corresponding guide groove 4042, ensuring the smooth progress of the cutting process.

[0046] See also Figures 2 to 4 Optionally, the number of guide grooves 4042 is greater than or equal to the number of cutter assemblies 202 , thereby ensuring that any cutter assembly 202 can slide into one of the guide grooves 4042 .

[0047] In some embodiments, the loading platform 404 is rotatably arranged, and the cutting mold 100 also includes a driven wheel 403, a driving wheel 402, a transmission belt and a loading driver 401. The driven wheel 403 is arranged at one end of the loading platform 404, and the driving wheel 402 is arranged on the rotating axis of the loading driver 401. The two ends of the transmission belt are respectively connected to the driving wheel 402 and the driven wheel 403 to drive the loading platform 404 to rotate through the loading driver 401.

[0048] See also Figures 2 to 4 Optionally, the rotation setting of the loading platform 404 realizes the automatic rotation of the loading platform 404 through the combination of the driven wheel 403, the driving wheel 402 and the transmission belt. The loading driver 401 can be a servo motor, which can drive the loading platform 404 to rotate accurately to ensure that each flat wire end 102 can accurately enter the cutting position of the cutter.

[0049] See also Figures 2 to 4Optionally, the number of flat wire ends 102 is an integer multiple of the number of cutter assemblies 202, for example, the number of cutter assemblies 202 is N, N is a natural number, and the number of flat wire ends 102 is 2N. In one cutting, N flat wire ends 102 are cut off, and N flat wire ends 102 remain uncut. At this time, the rotating disc 201 drives each cutting knife 2022 to exit each guide groove 4042, and the loading driver 401 drives the loading platform 404 to rotate a certain angle. At this time, each cutting knife 2022 re-corresponds to the N flat wire ends 102 that have not been cut off, and then drives each cutting knife 2022 to cut the material, thereby improving the degree of automation and efficiency of the cutting process, reducing the error and labor intensity of manual operation, and being able to cut flat the flat wire windings 101 with different numbers of flat wire ends 102.

[0050] It is understandable that the number of the flat wire ends 102 may also be 3N, 4N or more than 4N, which is not limited here and can be selected according to actual conditions.

[0051] In some embodiments, the driving structure 300 includes a driving motor 301 , a driving gear 302 connected to the driving motor 301 , and a rack 303 disposed on the rotating faceplate 201 and meshing with the driving gear 302 .

[0052] See also Figures 2 to 4 Optionally, the gear 302 and the rack 303 cooperate to enable the rotating faceplate 201 to rotate smoothly and accurately. The driving motor 301 can also be a servo motor to ensure the stability of the driving process and the accuracy of control, and the gear 302 meshing with the rack 303 also improves the transmission efficiency of the rotating faceplate 201.

[0053] See also Figures 2 to 4 Optionally, the cutting mold 100 also includes a positioning seat 104 ring with a accommodating cavity 106 and a positioning ring cover 103 detachably connected to the positioning seat 104, each of the cutter assemblies 202, each guide rail 204 and the rotating face disc 201 are located in the accommodating cavity 106, the positioning ring cover 103 is arranged above the rotating face disc 201, and the cavity wall of the accommodating cavity 106 is also provided with auxiliary bearings 105, and multiple auxiliary bearings 105 are arranged at intervals along the circumference of the rotating face disc 201, and each auxiliary bearing 105 is in rolling contact with the rotating face disc 201, thereby reducing the friction force on the rotating face disc 201 and improving the convenience and smoothness of the rotation of the rotating face disc 201.

[0054] It can also be understood that by removing the positioning ring cover 103, the rotating faceplate 201 can be taken out from the accommodating cavity 106, so that the cutter assembly 202 located below the rotating faceplate 201 can be maintained and replaced, thereby improving the convenience of using the cutter assembly 202.

[0055] See also Figures 2 to 4 Optionally, it is understandable that the guide rail 204 can be detachably connected to the bottom of the accommodating cavity 106 by the cooperation of bolts and threaded holes, so as to facilitate subsequent maintenance and replacement.

[0056] Optionally, the cutting mold 100 also includes a positioning plate 107 connected to the loading platform 404, and a positioning hole is opened on the positioning plate 107. A plurality of positioning holes are arranged at circumferential intervals around the positioning plate 107, and each flat wire end 102 is respectively inserted into each positioning hole. The positioning holes can improve the stability of the flat wire end 102 during the cutting process, thereby achieving precise cutting of each flat wire end 102.

[0057] It can also be understood that a through hole is also opened at the bottom of the accommodating cavity 106 , and the loading platform 404 can be rotatably disposed at the through hole through a bearing and rotatably connected to the positioning seat 104 .

[0058] The utility model also proposes a motor processing equipment, which includes a cutting die 100. The specific structure of the cutting die 100 refers to the above embodiment. Since the motor processing equipment adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0059] Optionally, the motor processing equipment can make the motor processing process more automated and efficient by integrating the flattening mold 100. By using the efficient and precise flattening mold 100, the motor processing equipment can better meet different processing requirements and improve the automation level and production capacity of the production line.

[0060] The above are only optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A flattening die for cutting off a flat wire end portion on a flat wire winding, wherein a plurality of flat wire ends are arranged at intervals around the circumference of the flat wire winding, characterized in that: The cutting die comprises: A cutter structure, comprising a cutter assembly and a rotatable faceplate, wherein the flat wire winding is located at the rotation center of the rotating faceplate, and one end of the cutter assembly is slidably connected to the rotating faceplate, and the other end of the cutter assembly extends toward the flat wire winding, and a plurality of the cutter assemblies are arranged at intervals along the circumference of the flat wire winding, and any of the cutter assemblies corresponds to one end of the flat wire; and The driving structure is connected to the rotating faceplate and is used to drive the rotating faceplate to rotate around its central axis, so that the rotating faceplate drives each of the cutting knife assemblies to move toward the flat wire winding and cut each of the flat wire ends respectively.

2. The cutting die according to claim 1, characterized in that: The rotating faceplate is provided with a driving groove, the extension path of the driving groove is an arc, a plurality of driving grooves are arranged at intervals around the central axis of the rotating faceplate, and one end of each cutting knife assembly is slidably disposed in each driving groove.

3. The cutting die according to claim 2, characterized in that: The driving grooves are arranged in an array, and the bending directions of the driving grooves are the same.

4. The cutting die according to claim 2, characterized in that: The cutting knife assembly includes a cutting knife, a guide slider and a driving disk slidably arranged in the driving groove, the two ends of the guide slider are respectively connected to the cutting knife and the driving disk, and the side surface of the driving disk abuts against the groove wall of the driving groove.

5. The cutting die according to claim 4, characterized in that: The cutter structure also includes a guide rail for guiding the guide slider to slide, and two guide rails are arranged on both sides of any guide slider.

6. The flattening die according to any one of claims 1 to 5, characterized in that: An avoidance through hole is provided at the center of the rotating faceplate, and the cutting die also includes a loading platform located at the avoidance through hole and used to carry the flat wire winding, the loading platform is provided with a blanking through hole, and a plurality of the blanking through holes are arranged at intervals along the circumference of the loading platform, and each end of the flat wire is respectively penetrated by the blanking through hole.

7. The cutting die according to claim 6, characterized in that: The loading platform is also provided with a guide groove, and a plurality of guide grooves are arranged at intervals along the circumference of the loading platform, each of the guide grooves is respectively connected to each of the blanking through holes, and one end edge of any of the cutting knife assemblies can slide into one of the guide grooves.

8. The cutting die according to claim 6, characterized in that: The loading platform is rotatably arranged, and the cutting mold also includes a driven wheel, a driving wheel, a transmission belt and a loading driver. The driven wheel is arranged at one end of the loading platform, and the driving wheel is arranged on the rotating shaft of the loading driver. The two ends of the transmission belt are respectively connected to the driving wheel and the driven wheel to drive the loading platform to rotate through the loading driver.

9. The flattening die according to any one of claims 1 to 5, characterized in that: The driving structure includes a driving motor, a driving gear connected to the driving motor, and a rack arranged on the rotating faceplate and meshing with the driving gear.

10. A motor processing device, characterized in that: It comprises a cutting die as described in any one of claims 1-9.

Images