CN113617923A

CN113617923A - Rotary cutting die

Info

Publication number: CN113617923A
Application number: CN202110884886.0A
Authority: CN
Inventors: 王聪
Original assignee: Dongguan Xinmeiyang Technology Co ltd
Current assignee: Dongguan Xinmeiyang Technology Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2021-11-09
Anticipated expiration: 2041-08-03
Also published as: CN113617923B

Abstract

The invention relates to a rotary cutting die, comprising: the rotary cutting device comprises an upper die, a lower die, a rotary cutting assembly and a positioning assembly, wherein the lower die is used for bearing a product connected with a material belt, the lower die and the upper die are arranged oppositely, the upper die can be close to or far away from the lower die along a first direction, and the upper die is used for being matched with the lower die to clamp the material belt so as to position the product connected with the material belt in the first direction; the rotary cutting assembly is arranged on one side of the upper die facing the lower die and is used for rotary cutting the material belt along a preset rotary cutting track so as to separate a product from the material belt; the positioning assembly is connected with the rotary cutting assembly, can move along a second direction vertical to the first direction relative to the rotary cutting assembly, and can be matched with the positioning groove of the product to realize the positioning of the product in the second direction. Because locating component can move along the second direction for rotary-cut subassembly, consequently, locating component can cooperate with the constant head tank of product all the time, keeps the location of product on the second direction, has improved rotary-cut mould's operating stability greatly.

Description

Rotary cutting die

Technical Field

The invention relates to the technical field of dies, in particular to a rotary cutting die.

Background

At present, the rotary cutting die generally adopts a rigid positioning structure to laterally position a product, and the rotary cutting acting force of the rotary cutting assembly of the rotary cutting die is very large, so that when the rotary cutting is performed on a material belt connected to the product, the rotary cutting acting force of the rotary cutting assembly can be transmitted to the product through the material belt and drives the product to laterally move, so that the rotary cutting of the material belt cannot be smoothly completed by the rotary cutting assembly, the product is separated from the material belt, and the operation stability of the rotary cutting die is greatly influenced.

Disclosure of Invention

Based on the above, the invention provides the rotary cutting die with high operation stability.

A rotary cut die comprising:

an upper die;

the lower die is used for bearing a product connected with a material belt, the lower die and the upper die are arranged oppositely, the upper die can be close to or far away from the lower die along a first direction, and the upper die is used for clamping the material belt in a manner of being matched with the lower die to position the product connected with the material belt in the first direction;

the rotary cutting assembly is arranged on one side, facing the lower die, of the upper die and is used for rotary cutting the material belt along a preset rotary cutting track so as to separate the product from the material belt; and

the positioning assembly is connected with the rotary cutting assembly, can move along a second direction perpendicular to the first direction relative to the rotary cutting assembly, and can be matched with the positioning groove of the product to realize the positioning of the product in the second direction.

In one embodiment, the positioning assembly includes a core and a connector, the core is configured to mate with the positioning groove of the product, the core is connected to the rotary cutting assembly via the connector, and the connector is configured to deform in the second direction when pressed, so that the core is movable in the second direction relative to the rotary cutting assembly.

In one embodiment, the core is located on a side of the rotary cutting assembly facing the lower die, one end of the connecting member is embedded in the rotary cutting assembly, and the other end of the connecting member is embedded in the core.

In one embodiment, a clearance groove is formed in a side of the core facing the rotary cutting assembly, and the connecting piece portion is accommodated in the clearance groove.

In one embodiment, the positioning assembly further includes an elastic supporting member disposed on the rotary cutting assembly and elastically abutted against the connecting member, and the elastic supporting member is configured to provide an elastic force to the connecting member to prevent the connecting member from being excessively deformed in the second direction.

In one embodiment, the rotary cutting assembly includes a guide rail, a cam and an upper die blade, the guide rail is disposed on a side of the upper die facing the lower die, the cam is in motion fit with the guide rail, the upper die blade is embedded in the cam, the positioning assembly is disposed on a side of the upper die blade facing the lower die, the positioning assembly is capable of moving in the second direction relative to the upper die blade, and the cam is configured to drive the upper die blade to cooperate with the guide rail to cut the material strip along the predetermined rotary cutting trajectory.

In one embodiment, the guide rail includes a plurality of sub-guide rails arranged at intervals, the plurality of sub-guide rails enclose to form an accommodating space, the cam is arranged in the accommodating space, and the cam is used for driving the upper die blade to respectively cooperate with the sub-guide rails in the accommodating space to rotationally cut the material tape along the preset rotational cutting track.

In one embodiment, the upper die comprises a first upper die holder and a second upper die holder which are arranged oppositely, the second upper die holder is located between the first upper die holder and the lower die, the first upper die holder and the second upper die holder can approach or depart from each other along the first direction, the second upper die holder is used for being matched with the lower die to clamp the material belt so as to realize the positioning of the product connected with the material belt in the first direction, and the rotary cutting assembly is arranged on one side of the second upper die holder facing the lower die.

In one embodiment, the lower die comprises a lower die seat and a lower die knife edge, and the lower die knife edge is embedded in the lower die seat.

In one embodiment, the lower die further comprises a lower ejector block and an elastic module, the lower ejector block is arranged in the lower die knife edge and can lift in the first direction relative to the lower die knife edge, the lower ejector block is used for supporting the product, the elastic module abuts against the lower ejector block, and the elastic module is used for providing reset elastic acting force for the lower ejector block.

The application provides a rotary cutting die, during the use, at first place the product that is connected with the material area on the lower mould, be close to the lower mould along the first direction on drive last mould after that, so that last mould cooperation lower mould centre gripping material area on the product, realize the location to the product that is connected with the material area in the first direction, in the process that last mould is close to the lower mould along the first direction, rotary cutting subassembly and locating component can follow last mould along the first direction and towards the direction of being close to the lower mould and remove, make locating component can cooperate with the constant head tank of product, so as to realize the location to the product in the second direction, after accomplishing the location of product in first direction and second direction, when the material area is separated with the material area through rotary cutting subassembly rotary cutting along presetting the rotary cutting orbit, the rotary cutting effort of rotary cutting subassembly can pass through the transmission for the product and order to produce the displacement in the second direction for the product, because the locating component can move along the second direction for the rotary-cut subassembly, consequently, the locating component can cooperate with the constant head tank of product all the time, keeps the location of product in the second direction, ensures that the rotary-cut subassembly can accomplish the rotary-cut in material area smoothly, realizes the separation in product and material area, has improved the operating stability of rotary-cut mould greatly.

Drawings

Fig. 1 is a schematic view of a rotary cutting die according to an embodiment in a state where an upper die and a lower die are closed;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic diagram of a product in one embodiment;

FIG. 4 is a cross-sectional view of the product shown in FIG. 3;

fig. 5 is a partial structural view of a rotary cutting die according to an embodiment;

fig. 6 is a schematic view illustrating a state of the rotary cutting die in an embodiment when the upper die and the lower die are opened.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1 to 3, the present application provides a rotary cutting die 10, where the rotary cutting die 10 includes an upper die 100, a lower die 200, a rotary cutting assembly 300, and a positioning assembly 400, where the lower die 200 is used to carry a product 20 connected with a material tape 21, the lower die 200 is disposed opposite to the upper die 100, the upper die 100 can be close to or away from the lower die 200 along a first direction, and the upper die 100 is used to cooperate with the lower die 200 to clamp the material tape 21 to position the product 20 connected with the material tape 21 in the first direction; the rotary cutting assembly 300 is disposed on a side of the upper die 100 facing the lower die 200, and the rotary cutting assembly 300 is configured to rotary cut the material tape 21 along a preset rotary cutting track to separate the product 20 from the material tape 21; the positioning assembly 400 is connected to the rotary cutting assembly 300, and the positioning assembly 400 can move in a second direction perpendicular to the first direction relative to the rotary cutting assembly 300 and can cooperate with the positioning groove of the product 20 to position the product 20 in the second direction.

As shown in fig. 1, in the present embodiment, for convenience of understanding, the first direction is defined as a linear direction of the Z axis, and the second direction is defined as a linear direction of the X axis, the upper die 100 can move close to or away from the lower die 200 along the linear direction of the Z axis, and the upper die 100 is used for cooperating with the lower die 200 to clamp the material tape 21 so as to position the product 20 connected with the material tape 21 in the linear direction of the Z axis; the positioning assembly 400 can move along the linear direction of the X axis relative to the rotary cutting assembly 300 and can cooperate with the positioning grooves 22 of the products 20 to position the products 20 in the linear direction of the X axis.

As shown in fig. 3 and 4, in the present embodiment, the material belt 21 is connected to two sides of the product 20, two ends of the product 20 are provided with the circular arc structures 23, and the size of the product 20 is: 18mmx2.1mmx2.9mm (length x width x height), the thickness of the product 20 is 0.25mm, and the inner width of the product 20 (width of the positioning grooves 22 of the product 20) is 1.61 mm.

As shown in fig. 2, in an embodiment, the positioning assembly 400 includes a core 410 and a connector 420, the core 410 is configured to fit into the positioning groove 22 of the product 20, the core 410 is connected to the rotary cutting assembly 300 through the connector 420, and the connector 420 is configured to deform in the second direction when pressed, so that the core 410 is movable in the second direction relative to the rotary cutting assembly 300. Specifically, since the connecting member 420 is deformed in the second direction when being pressed, the core 410 is movable in the second direction relative to the rotary cutting assembly 300, so as to ensure that the core 410 can always cooperate with the positioning groove 22 of the product 20, and the positioning of the product 20 in the second direction is maintained.

In an embodiment, the core 410 is located on a side of the rotary cutting assembly 300 facing the lower mold 200, the connecting member 420 may be a metal wire (e.g., a steel wire), further, the connecting member 420 may be a closed ring structure, one end of the connecting member 420 is embedded in the rotary cutting assembly 300, and the other end of the connecting member 420 is embedded in the core 410, specifically, two ends of the connecting member 420 are embedded in a middle portion of the rotary cutting assembly 300 and a middle portion of the core 410, respectively.

In an embodiment, a clearance groove 412 is formed on a side of the core 410 facing the rotary cutting assembly 300, and the connecting member 420 is partially received in the clearance groove 412, and specifically, the clearance groove 412 provides a certain moving space for the connecting member 420, so that the connecting member 420 can deform in a second direction when being pressed, thereby ensuring that the core 410 moves in the second direction relative to the rotary cutting assembly 300.

As shown in fig. 2, in an embodiment, the connecting member 420 includes a first connecting portion 421 and a second connecting portion 422, the number of the avoiding grooves 412 is two, the two avoiding grooves 412 are spaced apart from one another on a side of the core 410 facing the rotary cutting assembly 300, the first connecting portion 421 is partially received in one of the avoiding grooves 412, and the second connecting portion 422 is partially received in the other avoiding groove 412.

Further, the connecting member 420 further includes a third connecting portion 423 and a fourth connecting portion 424 that are disposed oppositely, and the third connecting portion 423 and the fourth connecting portion 424 are both connected between the first connecting portion 421 and the second connecting portion 422, and the first connecting portion 421, the second connecting portion 422, the third connecting portion 423 and the fourth connecting portion 424 enclose to form a closed-loop structure.

In an embodiment, the positioning assembly 400 further includes an elastic supporting element 430, the elastic supporting element 430 is disposed on the rotary cutting assembly 300 and elastically abuts against the connecting element 420, in an embodiment, the elastic supporting element 430 may be a rubber rod, the elastic supporting element 430 is embedded in the rotary cutting assembly 300, and the elastic supporting element 430 is configured to provide an elastic force to the connecting element 420 to prevent the connecting element 420 from excessively deforming in the second direction, so as to avoid an excessively large amount of movement of the core 410 relative to the rotary cutting assembly 300 in the second direction, and ensure that the core 410 can always cooperate with the positioning groove 22 of the product 20 to maintain the positioning of the product 20 in the second direction. Specifically, the elastic support pad elastically abuts against the third connection portion 423.

As shown in fig. 1, in an embodiment, the rotary cutting assembly 300 includes a guide rail 310, a cam 320, and an upper die blade 330, the guide rail 310 is disposed on a side of the upper die 100 facing the lower die 200, the cam 320 is movably engaged with the guide rail 310, the upper die blade 330 is embedded in the cam 320, the positioning assembly 400 is disposed on a side of the upper die blade 330 facing the lower die 200, the positioning assembly 400 is capable of moving in a second direction relative to the upper die blade 330, and the cam 320 is configured to drive the upper die blade 330 to cooperate with the guide rail 310 to rotate the material tape 21 along a predetermined rotary cutting trajectory, so as to separate the product 20 from the material tape 21.

As shown in fig. 2, specifically, the core 410 is disposed on a side of the upper die blade 330 facing the lower die 200, and the core 410 is capable of moving in the second direction relative to the upper die blade 330, and one end of the connecting member 420 away from the core 410 is embedded in the upper die blade 330, more specifically, one end of the connecting member 420 away from the core 410 is embedded in the middle of the upper die blade 330, the elastic supporting member 430 is disposed through the upper die blade 330, and two ends of the elastic supporting member 430 respectively extend out of two sides of the upper die blade 330.

As shown in fig. 1, in an embodiment, the guide rail 310 includes a plurality of sub-guide rails 311 arranged at intervals, the plurality of sub-guide rails 311 enclose to form an accommodating space 312, the cam 320 is arranged in the accommodating space 312, and the cam 320 is configured to drive the upper die blade 330 to rotatably cut the material tape 21 along a predetermined rotary cutting track in the accommodating space 312 in cooperation with each sub-guide rail 311, respectively, so as to separate the product 20 from the material tape 21.

As shown in fig. 5, in the present embodiment, the guide rail 310 includes a first sub-guide 313, a second sub-guide 314, a third sub-guide 315, a fourth sub-guide 316, a fifth sub-guide 317, and a sixth sub-guide 318, which are arranged at intervals, the first sub-guide 313 is arranged opposite to the second sub-guide 314, the third sub-guide 315 is arranged opposite to the fourth sub-guide 316, the fifth sub-guide 317 is arranged opposite to the sixth sub-guide 318, the first sub-guide 313, the second sub-guide 314, the third sub-guide 315, the fourth sub-rail 316, the fifth sub-rail 317 and the sixth sub-rail 318 enclose to form an accommodating space 312, and the cam 320 is configured to drive the upper die blade 330 to respectively match the first sub-rail 313, the second sub-rail 314, the third sub-rail 315, the fourth sub-rail 316, the fifth sub-rail 317 and the sixth sub-rail 318 in the accommodating space 312 to perform rotary cutting on the tape 21 along a preset rotary cutting track, so as to separate the product 20 from the tape 21.

Further, the first sub-guide rail 313 and the second sub-guide rail 314 are arranged in parallel at intervals in the second direction, the third sub-guide rail 315 and the fourth sub-guide rail 316 are arranged in parallel at intervals in the third direction, the third direction is perpendicular to the first direction and the second direction in pairs, in this embodiment, the third direction is a linear direction where the Y axis is located, the first sub-guide rail 313 and the third sub-guide rail 315 are arranged in parallel at intervals in the third direction, and the second sub-guide rail 314 and the fourth sub-guide rail 316 are arranged in parallel at intervals in the third direction.

As shown in fig. 1, in an embodiment, the upper die 100 includes a first upper die holder 110 and a second upper die holder 120, which are disposed opposite to each other, the second upper die holder 120 is located between the first upper die holder 110 and the lower die 200, the first upper die holder 110 and the second upper die holder 120 can move close to or away from each other along a first direction, the second upper die holder 120 is configured to cooperate with the lower die 200 to clamp the tape 21 so as to position the product 20 connected with the tape 21 in the first direction, and the rotary cutting assembly 300 is disposed on a side of the second upper die holder 120 facing the lower die 200. Through the mutual matching of the first upper die holder 110 and the second upper die holder 120, a certain moving margin can be provided for the moving stroke of the upper die 100 along the first direction, so that in the process of rotatably cutting the material belt 21 connected to the product 20 by the rotary cutting assembly 300, the product 20 can be positioned in the first direction and the second direction by means of the matching action of the second upper die holder 120, the lower die 200 and the positioning assembly 400, and further, the stable operation of the rotary cutting die 10 is ensured.

Specifically, in the present embodiment, the guide rail 310 is disposed through the second upper die holder 120 and connected to the first upper die holder 110, and the guide rail 310 can move along the first direction relative to the second upper die holder 120.

As shown in fig. 1, in an embodiment, the upper mold 100 further includes an elastic component 130, the elastic component 130 is disposed in the first upper mold base 110 and can abut against the second upper mold base 120, and the elastic component 130 is configured to provide an elastic force to the second upper mold base 120 to drive the second upper mold base 120 to move away from the first upper mold base 110 and toward a direction close to the lower mold 200 along a first direction. The elastic member 130 can firmly press the second upper die holder 120 and the lower die 200 without pre-tightening, and the elastic member 130 can ensure stable operation of the rotary cutting die 10 during the rotary cutting of the material tape 21 by the rotary cutting member 300.

Specifically, the elastic component 130 includes an upper ejector 131 and an elastic element 132, the upper ejector 131 is disposed in the first upper die holder 110 and can move along a first direction relative to the first upper die holder 110, the upper ejector 131 is used for abutting against the second upper die holder 120, the elastic element 132 can be a compression spring, the elastic element 132 is elastically accommodated in the first upper die holder 110 and abuts against the upper ejector 131, the elastic element 132 can provide elastic force to the upper ejector 131 to drive the upper ejector 131 to approach the second upper die holder 120 along the first direction, so that the upper ejector 131 abuts against the second upper die holder 120 and drives the second upper die holder 120 to move away from the first upper die holder 110 and towards the lower die 200 along the first direction, and further, the upper die 100 and the lower die 200 are stably pressed.

As shown in fig. 6, in an embodiment, the first upper die holder 110 includes an upper cover plate 111, an upper die holder body 112, an upper padding plate 113 and an upper clamp plate 114, which are sequentially connected from top to bottom, the second upper die holder 120 includes a stop plate 121 and an upper stripper plate 122, which are sequentially connected from top to bottom, the upper clamp plate 114 is disposed toward a side of the stop plate 121 away from the upper stripper plate 122, the guide rail 310 is disposed through the stop plate 121 and the upper stripper plate 122 of the second upper die holder 120 and connected with the upper clamp plate 114 of the first upper die holder 110, the upper ejector rod 131 is disposed in the upper die holder body 112 and can sequentially extend out of the first upper die holder 110 through the upper padding plate 113 and the upper clamp plate 114, the upper ejector rod 131 is used for abutting against the stop plate 121 of the second upper die holder 120, and the elastic element 132 is elastically accommodated in the upper die holder body 112 and the upper cover plate 111 and abuts against one end of the upper ejector rod 131.

In one embodiment, the lower mold 200 includes a lower mold base 210 and a lower mold blade 220, the lower mold blade 220 is embedded in the lower mold base 210, and both the lower mold base 210 and the lower mold blade 220 can carry the product 20 with the tape 21.

Further, the lower mold 200 further includes a lower ejection block 230 and an elastic module 240, the lower ejection block 230 is disposed in the lower mold knife edge 220 and can be lifted and lowered along a first direction relative to the lower mold knife edge 220, the lower ejection block 230 is used for supporting the product 20, the elastic module 240 abuts against the lower ejection block 230, and the elastic module 240 is used for providing a reset elastic acting force to the lower ejection block 230.

Specifically, when the upper die 100 and the lower die 200 are closed and the rotary cutting assembly 300 is used for rotary cutting the material tape 21, the lower ejector block 230 is lowered along the first direction relative to the lower die blade 220 under the abutting action of the product 20, after the rotary cutting assembly 300 finishes the rotary cutting of the material tape 21 connected to the product 20, the upper die 100 and the lower die 200 are opened, and the lower ejector block 230 is raised along the first direction relative to the lower die blade 220 under the elastic action of the elastic module 240 to realize resetting, so that the rotary cut product 20 of the material tape 21 is conveniently separated from the lower die 200.

As shown in fig. 6, in an embodiment, the elastic module 240 includes a lower ejector rod 241 and an elastic element 242, the lower ejector rod 241 is disposed in the lower die holder 210, and one end of the lower ejector rod 241 extends into the lower die knife edge 220 and abuts against the lower ejector block 230, the lower ejector rod 241 can move up and down along a first direction relative to the lower die holder 210 and the lower die knife edge 220, the elastic element 242 is disposed in the lower die holder 210 and abuts against one end of the lower ejector rod 241 far away from the lower ejector block 230, the elastic element 242 may be a compression spring, and the elastic element 242 is configured to provide a restoring elastic force to the lower ejector block 230 through the lower ejector rod 241.

Specifically, when the upper die 100 and the lower die 200 are closed and the rotary cutting assembly 300 is used for rotary cutting the material strip 21, the lower ejector block 230 is lowered along the first direction relative to the lower die blade 220 under the abutting action of the product 20, at this time, the lower ejector rod 241 is lowered along the first direction along with the lower ejector block 230, so that the elastic element 242 abutting against one end of the lower ejector rod 241 is elastically deformed, after the rotary cutting assembly 300 completes the rotary cutting of the material strip 21 connected to the product 20, the upper die 100 and the lower die 200 are opened, and the elastic element 242 returns to a free state and drives the lower ejector block 230 to be raised along the first direction relative to the lower die blade 220 through the lower ejector rod 241 to realize resetting.

Further, in an embodiment, the lower die base 210 includes a lower die plate 211, a lower backing plate 212, and a lower die base body 213 sequentially connected from top to bottom, the lower die blade 220 is embedded in the lower die plate 211, the lower ejector rod 241 is disposed in the lower die base body 213, and one end of the lower ejector rod 241 sequentially extends into the lower die blade 220 through the lower backing plate 212 and the lower die plate 211 and abuts against the lower ejector block 230, and the elastic element 242 is elastically accommodated in the lower die base body 213 and abuts against one end of the lower ejector rod 241 away from the lower ejector block 230.

When the rotary cutting die 10 provided by the application is used, firstly, a product 20 connected with a material belt 21 is placed on the lower die 200, then the upper die 100 is driven to be close to the lower die 200 along the first direction, so that the upper die 100 is matched with the lower die 200 to clamp the material belt 21 connected to the product 20, the product 20 connected with the material belt 21 is positioned in the first direction, in the process that the upper die 100 is close to the lower die 200 along the first direction, the rotary cutting assembly 300 and the positioning assembly 400 can move along the first direction and towards the direction close to the lower die 200 along with the upper die 100, so that the positioning assembly 400 can be matched with the positioning groove of the product 20 to position the product 20 in the second direction, after the positioning of the product 20 in the first direction and the second direction is completed, when the material belt 21 is rotationally cut along a preset rotary cutting track through the rotary cutting assembly 300 to separate the product 20 from the material belt 21, the rotary cutting acting force of the rotary cutting assembly 300 can be transmitted to the product 20 through the product 21 and drive the product 20 to generate displacement in the second direction Because the positioning assembly 400 can move in the second direction relative to the rotary cutting assembly 300, the positioning assembly 400 can always cooperate with the positioning groove of the product 20 to keep the product 20 positioned in the second direction, so that the rotary cutting assembly 300 can smoothly complete the rotary cutting of the material belt 21, the separation of the product 20 from the material belt 21 is realized, and the operation stability of the rotary cutting mold 10 is greatly improved.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A rotary cutting die, comprising:

an upper die;

2. A rotary cutting die according to claim 1, wherein the positioning assembly comprises a core and a connector, the core is adapted to fit into a positioning groove of the product, the core is connected to the rotary cutting assembly via the connector, and the connector is capable of deforming in the second direction when pressed, so that the core is movable in the second direction relative to the rotary cutting assembly.

3. A rotary cutting die according to claim 2, wherein said core is disposed on a side of said rotary cutting assembly facing said lower die, one end of said connecting member is embedded in said rotary cutting assembly, and the other end of said connecting member is embedded in said core.

4. A rotary cutting die according to claim 3, wherein a clearance groove is formed in a side of said core facing said rotary cutting assembly, and said connecting member is partially received in said clearance groove.

5. The rotary-cut mold according to claim 2, wherein the positioning assembly further comprises an elastic supporting member disposed on the rotary-cut assembly and elastically abutting against the connecting member, the elastic supporting member being configured to provide an elastic force to the connecting member to prevent the connecting member from being excessively deformed in the second direction.

6. The rotary cutting die of claim 1, wherein the rotary cutting assembly comprises a guide rail, a cam and an upper die blade, the guide rail is disposed on a side of the upper die facing the lower die, the cam is movably engaged with the guide rail, the upper die blade is embedded in the cam, the positioning assembly is disposed on a side of the upper die blade facing the lower die, the positioning assembly is capable of moving in the second direction relative to the upper die blade, and the cam is configured to drive the upper die blade to engage with the guide rail to cut the material strip along the predetermined rotary cutting path.

7. The rotary-cut mold according to claim 6, wherein the guide rail comprises a plurality of sub-guide rails arranged at intervals, the plurality of sub-guide rails enclose a receiving space, the cam is arranged in the receiving space, and the cam is configured to drive the upper die blade to respectively cooperate with the sub-guide rails in the receiving space to rotary-cut the material strip along the predetermined rotary-cut trajectory.

8. The rotary cutting die of claim 1, wherein the upper die comprises a first upper die holder and a second upper die holder which are opposite to each other, the second upper die holder is located between the first upper die holder and the lower die, the first upper die holder and the second upper die holder can move toward or away from each other along the first direction, the second upper die holder is used for clamping the material belt in cooperation with the lower die to achieve positioning of a product connected with the material belt in the first direction, and the rotary cutting assembly is arranged on one side of the second upper die holder facing the lower die.

9. A rotary cutting die according to claim 1, wherein said lower die comprises a lower die holder and a lower die blade, said lower die blade being embedded in said lower die holder.

10. A rotary cutting die according to claim 9, wherein said lower die further comprises a lower ejector block and an elastic module, said lower ejector block is disposed in said lower die blade opening and can be lifted and lowered in said first direction relative to said lower die blade opening, said lower ejector block is configured to support said product, said elastic module abuts against said lower ejector block, and said elastic module is configured to provide a restoring elastic force to said lower ejector block.