Cutting device

Abstract

The utility model discloses a cutting device. The cutting device comprises a feeding assembly, a lower die cutting piece and an upper die cutting piece. The feeding assembly is used for conveying a to-be-cut piece in the conveying direction. The lower die cutting part is located on the downstream of the feeding assembly in the conveying direction and comprises a material guiding table and a cutting body, and the material guiding table is clamped between the cutting body and the feeding assembly so that the cutting body and the feeding assembly can be spaced to form a containing cavity; the upper die cutting piece is located on the downstream of the feeding assembly in the conveying direction and comprises a cutting part, and the cutting part is close to the cutting main body in the cutting direction perpendicular to the conveying direction so that the cutting part can cut the to-be-cut piece located on the opening side of the containing cavity. When the cutting part cuts the to-be-cut piece, generated chippings can fall into the material guiding table through the containing cavity, the chippings are prevented from falling onto the to-be-cut piece, and therefore the influence on the to-be-cut piece on the feeding assembly is reduced.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a cutting device. Background Art

[0002] In today's era of rapid development in the automotive industry, global car sales have reached new highs, and the quality requirements of car bodies are gradually increasing. During the automobile manufacturing process, automobile parts often need to be trimmed to cut off excess waste.

[0003] During the cutting process of scrap automobile parts, the scrap debris generated by cutting is easy to fall onto the parts, causing quality defects in the parts in subsequent processes, and thus having a negative impact on the overall quality of the car. Utility Model Content

[0004] The main purpose of this application is to provide a cutting device to solve the above-mentioned technical problems existing in the prior art.

[0005] To solve the above problems, the present application provides a cutting device, which includes a feeding assembly, a lower mold cutting piece, and an upper mold cutting piece; the feeding assembly is used to transmit the workpiece to be cut along the conveying direction; the lower mold cutting piece is located downstream of the feeding assembly in the conveying direction, and the lower mold cutting piece includes a material guide table and a cutting body, and the material guide table is clamped between the cutting body and the feeding assembly so that the cutting body and the feeding assembly are separated to form a receiving cavity; the upper mold cutting piece is located downstream of the feeding assembly in the conveying direction, and the upper mold cutting piece includes a cutting part, and the cutting part is close to the cutting body in a cutting direction perpendicular to the conveying direction so that the cutting part cuts the workpiece to be cut located on the opening side of the receiving cavity.

[0006] Preferably, the cutting body has a cutting end face, the cutting end face is located on a side of the cutting body close to the upper mold cutting piece, and the feeding assembly has a feeding end face, the feeding end face is located upstream of the cutting end face in the cutting direction.

[0007] Preferably, the material guide table is provided with a first inclined surface, the first inclined surface has a first oblique side and a second oblique side, the first oblique side and the second oblique side are both extended along the conveying direction, and the first oblique side and the second oblique side have a height difference in the cutting direction.

[0008] Preferably, the first oblique edge is located upstream of the second oblique edge in the cutting direction, and the first oblique edge and the second oblique edge have a height difference of 33 mm to 37 mm in the cutting direction.

[0009] Preferably, the dimension of the first oblique edge in the conveying direction is set to 2 mm to 4 mm, and the height difference between the cutting end surface and the first oblique edge in the cutting direction is 13 mm to 17 mm.

[0010] Preferably, the cutting body is provided with a second bevel, the second bevel has a third bevel and a fourth bevel, the third bevel and the fourth bevel are both extended along the conveying direction, and the third bevel and the fourth bevel have a height difference in the cutting direction.

[0011] Preferably, the fourth oblique edge is located downstream of the first oblique edge in the cutting direction, and the fourth oblique edge is located upstream of the second oblique edge in the cutting direction.

[0012] Preferably, the first oblique edge and the third oblique edge are spaced apart in a material guiding direction perpendicular to the cutting direction, and the first oblique edge is located on a side of the material guiding platform away from the material guiding direction.

[0013] Preferably, the cutting portion is convex, and when the upper mold cutting piece moves in the cutting direction to cut the piece to be cut, the cutting portion can extend into the receiving cavity, and the size of the cutting portion in the cutting direction is set to 4mm to 6mm.

[0014] Preferably, the upper mold cutting piece is provided with an upper mold protrusion on the side close to the lower mold cutting piece, and the lower mold cutting piece is provided with a lower mold groove on the side close to the upper mold cutting piece, and the upper mold protrusion can be embedded in the lower mold groove when the upper mold cutting piece moves toward the lower mold cutting piece.

[0015] Compared with the prior art, the cutting device of the present application includes a feeding assembly, a lower die cutting piece, and an upper die cutting piece; the feeding assembly is used to transport the workpiece to be cut along the conveying direction; the lower die cutting piece is located downstream of the feeding assembly in the conveying direction, the lower die cutting piece includes a material guide table and a cutting body, the material guide table is clamped between the cutting body and the feeding assembly, so that the cutting body and the feeding assembly are separated to form a receiving cavity; the upper die cutting piece is located downstream of the feeding assembly in the conveying direction, the upper die cutting piece includes a cutting portion, the cutting portion is close to the cutting body in a cutting direction perpendicular to the conveying direction, so that the cutting portion cuts the workpiece to be cut located on the opening side of the receiving cavity. The feeding assembly is arranged close to the lower die cutting piece in the conveying direction, and the arrangement of the material guide table and the receiving cavity ensures that there is a certain gap between the upper part of the feeding assembly and the cutting body in the cutting direction, and the lower part of the feeding assembly is in contact with the material guide table. When the cutting part cuts the workpiece to be cut, the debris generated by the cutting will fall to the material guide table through the receiving cavity, thereby avoiding the risk of debris falling onto the workpiece to be cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. 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 creative work.

[0017] Figure 1 This is a schematic structural diagram of an embodiment of a cutting device provided by the present application;

[0018] Figure 2 This is a schematic structural diagram from a first perspective of an embodiment of a lower die cutting piece provided by the present application;

[0019] Figure 3 This is a schematic structural diagram of a lower die cutting piece according to an embodiment of the present application from a second perspective;

[0020] Figure 4 This is a schematic structural diagram of an embodiment of a lower die cutting piece provided by the present application from a third perspective;

[0021] Figure 5 This is a schematic structural diagram from a first perspective of an embodiment of an upper die cutting piece provided by the present application;

[0022] Figure 6 This is a schematic structural diagram from the second perspective of an embodiment of the upper mold cutting piece provided in the present application.

[0023] Figure numbers: cutting device 1; feeding assembly 10; feeding end face 110; lower mold cutting piece 20; material guiding platform 210; first inclined surface 2110; first oblique edge 2111; second oblique edge 2112; cutting body 220; cutting end face 2210; second oblique surface 2220; third oblique edge 2221; fourth oblique edge 2222; accommodating cavity 230; lower mold groove portion 240; upper mold cutting piece 30; cutting portion 310; upper mold protrusion portion 320; conveying direction X; cutting direction Y; material guiding direction Z; piece to be cut 2; debris 3. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0026] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0027] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0029] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0030] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do 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 embodiments of the present application.

[0031] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0032] In today's era of rapid development in the automotive industry, global car sales have reached new highs, and the quality requirements of car bodies are gradually increasing. During the automobile manufacturing process, automobile parts often need to be trimmed to cut off excess waste.

[0033] During the cutting process of scrap auto parts, the debris generated by cutting easily falls on the parts, causing quality defects in the parts in subsequent processes, and thus having a negative impact on the overall quality of the car.

[0034] In order to solve the technical problems existing in the related art, the present application provides a cutting device 1, see Figure 1 , Figure 1 It is a schematic structural diagram of an embodiment of the cutting device 1 provided in this application.

[0035] The cutting device 1 includes a feeding assembly 10, a lower mold cutting member 20, and an upper mold cutting member 30; the feeding assembly 10 is used to transport the workpiece 2 to be cut along the conveying direction X; the lower mold cutting member 20 is located downstream of the feeding assembly 10 in the conveying direction X, and the lower mold cutting member 20 includes a guide table 210 and a cutting body 220, and the guide table 210 is clamped between the cutting body 220 and the feeding assembly 10 so that the cutting body 220 and the feeding assembly 10 are separated to form a receiving cavity 230; the upper mold cutting member 30 is located downstream of the feeding assembly 10 in the conveying direction X, and the upper mold cutting member 30 includes a cutting portion 310, and the cutting portion 310 is close to the cutting body 220 in the cutting direction Y perpendicular to the conveying direction X, so that the cutting portion 310 cuts the workpiece 2 to be cut located on the opening side of the receiving cavity 230.

[0036] The feed assembly 10 is positioned adjacent to the lower die cutting element 20 in the conveying direction X, and its bottom portion is positioned adjacent to the guide platform 210 in the cutting direction Y. Because a receiving cavity 230 is formed above the guide platform 210, a certain gap exists between the upper portion of the feed assembly 10 and the cutting body 220. It should be noted that the presence of the guide platform 210 eliminates the need to manually adjust the position of the feed assembly 10 and the cutting body 220; simply placing the feed assembly 10 adjacent to the cutting element provides a gap between the upper portion of the feed assembly 10 and the cutting body 220. When the workpiece 2 to be cut is being cut, part of the workpiece 2 to be cut is pressed by the feeding assembly 10, and part is pressed between the lower mold cutting piece 20 and the upper mold cutting piece 30. The upper mold cutting piece 30 moves in the cutting direction Y to approach the lower mold cutting piece 20. The upper mold cutting piece 30 and the cutting body 220 fit together to fix part of the workpiece 2 to be cut. At the same time, the cutting part 310 extends into the open side of the receiving cavity 230 to cut the workpiece 2 to be cut. Therefore, the debris 3 generated by the cutting will fall into the guide table 210 from the open side of the receiving cavity 230, thereby preventing the debris 3 from moving to the feeding assembly 10 and the workpiece 2 to be cut due to vibration or wind blowing, thereby improving the quality of the workpiece 2 to be cut.

[0037] The cutting body 220 has a cutting end surface 2210 , which is arranged on a side of the cutting body 220 close to the upper mold cutting piece 30 . The feeding assembly 10 has a feeding end surface 110 , which is located upstream of the cutting end surface 2210 in the cutting direction Y.

[0038] Part of the workpiece 2 to be cut is pressed against the feeding end face 110, and part is pressed against the cutting end face 2210. The feeding end face 110 is higher than the cutting end face 2210 in the cutting direction Y, so that the cutting point can be located below the feeding end face 110, further preventing the debris 3 generated during cutting from falling onto the workpiece 2 to be cut located on the feeding assembly 10.

[0039] See also Figure 2 、 Figure 3 and Figure 4 , Figure 2 This is a schematic structural diagram of a lower die cutting piece 20 according to an embodiment of the present application from a first perspective. Figure 3 This is a schematic structural diagram of a lower die cutting piece 20 according to an embodiment of the present application from a second perspective. Figure 4 This is a schematic structural diagram from the third perspective of an embodiment of the lower die cutting piece 20 provided in the present application.

[0040] The guide platform 210 is provided with a first inclined surface 2110 , and the first inclined surface 2110 has a first oblique side 2111 and a second oblique side 2112 . The first oblique side 2111 and the second oblique side 2112 are both extended along the conveying direction X, and the first oblique side 2111 and the second oblique side 2112 have a height difference in the cutting direction Y.

[0041] The first bevel 2111 and the second bevel 2112 are located on two relatively parallel sides of the material guide table 210, and extend obliquely from the first bevel 2111 to the second bevel 2112 to form a first bevel 2110. Therefore, the debris 3 generated when the workpiece 2 to be cut is cut will first fall into the receiving cavity 230, and then fall from the receiving cavity 230 to the first bevel 2110, and then be discharged from one side of the material guide table 210, thereby preventing the debris 3 from falling onto the workpiece 2 to be cut.

[0042] The first oblique side 2111 is located upstream of the second oblique side 2112 in the cutting direction Y. The first oblique side 2111 and the second oblique side 2112 have a height difference of 33 mm to 37 mm in the cutting direction Y.

[0043] In the cutting direction Y, the first bevel 2111 is located above the second bevel 2112. Therefore, the bevel is arranged to bevel from the first bevel 2111 toward the second bevel 2112. As a result, the debris 3 generated by the workpiece 2 to be cut will roll from the first bevel 2111 to the second bevel 2112 due to the effect of gravity, thereby keeping the debris 3 away from the workpiece 2 to be cut. It can be understood that by adjusting the height difference between the first bevel 2111 and the second bevel 2112 in the cutting direction Y, the slope of the first bevel 2110 can be adjusted, thereby adjusting the effect of discharging the debris 3. Preferably, the height difference between the first bevel 2111 and the second bevel 2112 in the cutting direction Y can be 35 mm, or other values, and can be adjusted according to actual effects.

[0044] The first bevel 2111 has a dimension of 2 mm to 4 mm in the conveying direction X, and the cutting end surface 2210 and the first bevel 2111 have a height difference of 13 mm to 17 mm in the cutting direction Y. The dimension of the first bevel 2111 in the conveying direction X is also the width of the receiving chamber 230 in the conveying direction X, which determines the width of the gap between the feeding assembly 10 and the cutting body 220. The width of the receiving chamber 230 should not be too wide, otherwise trimming burrs will easily be generated. The width of the receiving chamber 230 should not be too narrow, otherwise the debris 3 will not fall smoothly within the receiving chamber 230. Preferably, the dimension of the first bevel 2111 in the conveying direction X can be set to 3 mm, or other values can be used, depending on the actual situation. The receiving chamber 230 has a depth of 13 mm to 17 mm in the cutting direction Y. The depth of the receiving chamber 230 should not be too shallow, otherwise the debris 3 may accumulate and be easily moved to the workpiece 2 to be cut due to vibration and wind. In some embodiments, the height difference between the cutting end surface 2210 and the first oblique edge 2111 in the cutting direction Y can be 15 mm, or other values, which can be adjusted according to actual conditions.

[0045] The cutting body 220 is provided with a second inclined surface 2220, and the second inclined surface 2220 has a third oblique side 2221 and a fourth oblique side 2222. The third oblique side 2221 and the fourth oblique side 2222 are both extended along the conveying direction X, and the third oblique side 2221 and the fourth oblique side 2222 have a height difference in the cutting direction Y.

[0046] The third bevel 2221 is located on one side of the cutting end surface 2210, and the fourth bevel 2222 is located on the side of the cutting body 220 facing away from the cutting end surface 2210. The second bevel 2220 extends obliquely from the third bevel 2221 toward the fourth bevel 2222. Because the third bevel 2221 is higher than the fourth bevel 2222 in the cutting direction Y, the debris 3 generated by cutting rolls down from the third bevel 2221 of the second bevel 2220 to the fourth bevel 2222 under the action of gravity.

[0047] The fourth bevel 2222 is located downstream of the first bevel 2111 in the cutting direction Y, and upstream of the second bevel 2112 in the cutting direction Y. This makes the second bevel 2220 higher than the first bevel 2110 in the cutting direction Y. Consequently, most of the debris 3 generated by cutting the workpiece 2 to be cut falls into the receiving cavity 230 formed between the cutting body 220 and the first bevel 2110, and is then discharged from the first bevel 2110 of the guide table 210. The second bevel 2220 on the cutting body 220 serves to assist in the discharge of the debris 3. In the cutting direction Y, the bottom of the second bevel 2220 is located below the top of the first bevel 2110, which further ensures that the debris 3 is kept away from the workpiece 2 to be cut on the feeding assembly 10.

[0048] The first bevel 2111 and the third bevel 2221 are spaced apart in a guide direction Z perpendicular to the cutting direction Y. The first bevel 2111 is located on a side of the guide platform 210 facing away from the guide direction Z. The third bevel 2221 is located on one side of the cutting end surface 2210 and is located between the first bevel 2111 and the second bevel 2112 in the guide direction Z. This allows most of the debris 3 generated when the cutting portion 310 cuts the workpiece 2 to fall through the receiving cavity 230 onto the first bevel 2110 of the guide platform 210, thereby rolling from the first bevel 2111 toward the guide direction Z to the second bevel 2112.

[0049] See also Figure 1 、 Figure 5 and Figure 6 , Figure 1 This is a schematic structural diagram of an embodiment of the cutting device 1 provided in this application. Figure 5 This is a schematic structural diagram from a first perspective of an embodiment of the upper die cutting piece 30 provided in this application. Figure 6 This is a schematic structural diagram from a second perspective of an embodiment of the upper mold cutting piece 30 provided in the present application.

[0050] The cutting portion 310 is convex and can extend into the receiving cavity 230 when the upper mold cutting member 30 moves in the cutting direction Y to cut the workpiece 2. The cutting portion 310 has a dimension of 4 to 6 mm in the cutting direction Y. When the upper mold cutting member 30 moves toward the cutting body 220 and engages with the cutting body 220, the cutting portion 310 can move into the receiving cavity 230, causing the generated debris 3 to fall into the receiving cavity 230 and then be discharged through the first inclined surface 2110 of the guide table 210. Preferably, the height of the cutting portion 310 in the cutting direction Y can be set to 5 mm, but other values are also possible, depending on the actual situation.

[0051] The upper mold cutting piece 30 is provided with an upper mold protrusion 320 on the side close to the lower mold cutting piece 20, and the lower mold cutting piece 20 is provided with a lower mold groove 240 on the side close to the upper mold cutting piece 30. The upper mold protrusion 320 can be embedded in the lower mold groove 240 when the upper mold cutting piece 30 moves toward the lower mold cutting piece 20.

[0052] The upper die protrusion 320 is spaced apart from the cutting portion 310 in the conveying direction X, and the lower die recess 240 is provided at a position corresponding to the cutting body 220. On the one hand, when the upper die cutting member 30 moves toward the cutting body 220, the upper die protrusion 320 and the lower die recess 240 provide positioning, preventing the upper die cutting member 30 and the cutting body 220 from being misaligned in the conveying direction X, thereby preventing the cutting portion 310 from deviating from the receiving cavity 230 and affecting the cutting effect. On the other hand, when the upper die cutting member 30 and the cutting body 220 are in contact, they can better stabilize the workpiece 2 to be cut on the cutting end surface 2210.

[0053] In summary, the cutting device 1 provided by the present application forms a receiving cavity 230 between the feeding assembly 10 and the cutting body 220 by setting the material guide table 210, that is, there is a certain gap between the feeding assembly 10 and the cutting body 220, so that the debris 3 generated by cutting the workpiece 2 to be cut will fall into the receiving cavity 230 and then be discharged from the first inclined surface 2110 of the material guide table 210, thereby preventing the debris 3 from falling onto the workpiece 2 to be cut and affecting its quality. At the same time, the feeding device provided by the present application only needs to set the feeding assembly 10 close to the material guide table 210, and there will be a certain gap between the feeding assembly 10 and the cutting body 220. The width of the gap can be adjusted by adjusting the size of the material guide table 210 in the conveying direction X, so that there is no need to manually adjust the gap between the feeding assembly 10 and the cutting assembly.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A cutting device, characterized in that: The cutting device comprises: A feeding assembly, used for conveying the workpiece to be cut along a conveying direction; a lower die cutting member, located downstream of the feeding assembly in the conveying direction, the lower die cutting member comprising a material guide table and a cutting body, the material guide table being sandwiched between the cutting body and the feeding assembly so that the cutting body and the feeding assembly are spaced apart to form a receiving cavity; The upper mold cutting piece is located downstream of the feeding assembly in the conveying direction, and the upper mold cutting piece includes a cutting portion, which is close to the cutting body in a cutting direction perpendicular to the conveying direction so that the cutting portion cuts the piece to be cut located on the opening side of the receiving cavity.

2. The cutting device according to claim 1, characterized in that The cutting body has a cutting end face, which is located on a side of the cutting body close to the upper die cutting piece. The feeding assembly has a feeding end face, which is located upstream of the cutting end face in the cutting direction.

3. The cutting device according to claim 2, characterized in that The material guide table is provided with a first inclined surface, the first inclined surface has a first oblique side and a second oblique side, the first oblique side and the second oblique side are both extended along the conveying direction, and the first oblique side and the second oblique side have a height difference in the cutting direction.

4. The cutting device according to claim 3, characterized in that The first oblique edge is located upstream of the second oblique edge in the cutting direction, and a height difference between the first oblique edge and the second oblique edge in the cutting direction is 33 mm to 37 mm.

5. The cutting device according to claim 3, characterized in that The dimension of the first oblique edge in the conveying direction is set to 2 mm to 4 mm, and the height difference between the cutting end surface and the first oblique edge in the cutting direction is 13 mm to 17 mm.

6. The cutting device according to claim 3, characterized in that The cutting body is provided with a second inclined surface, the second inclined surface has a third inclined side and a fourth inclined side, the third inclined side and the fourth inclined side are both extended along the conveying direction, and the third inclined side and the fourth inclined side have a height difference in the cutting direction.

7. The cutting device according to claim 6, characterized in that The fourth oblique edge is located downstream of the first oblique edge in the cutting direction, and the fourth oblique edge is located upstream of the second oblique edge in the cutting direction.

8. The cutting device according to claim 7, characterized in that The first oblique edge and the third oblique edge are spaced apart in a material guiding direction perpendicular to the cutting direction, and the first oblique edge is located on a side of the material guiding platform away from the material guiding direction.

9. The cutting device according to claim 1, characterized in that The cutting portion is convex, and when the upper mold cutting piece moves in the cutting direction to cut the workpiece to be cut, the cutting portion can extend into the receiving cavity, and the size of the cutting portion in the cutting direction is set to 4mm to 6mm.

10. The cutting device according to claim 1, characterized in that The upper die cutting piece is provided with an upper die protrusion on one side close to the lower die cutting piece, and the lower die cutting piece is provided with a lower die groove on one side close to the upper die cutting piece. The upper die protrusion can be embedded in the lower die groove when the upper die cutting piece moves toward the lower die cutting piece.

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