A die cutting anvil, a die cutting assembly and an automatic die cutting machine

Abstract

The application discloses a die cutting bottom roller, and belongs to the field of die cutting machines. The roller body is provided with a cutting-avoiding groove and an air suction hole on the surface, and can realize step-by-step die cutting of one die cutting knife roller with two or more bottom rollers, thereby avoiding the problem of low product yield caused by incomplete removal of waste materials during one-time forming of the film material. The application also discloses an automatic die cutting machine, which comprises a die cutting bottom roller and a knife roller fixed on a knife holder. The die cutting bottom roller comprises a first bottom roller and a second bottom roller, and the knife roller is located between the first bottom roller and the second bottom roller. The knife roller is provided with an outer contour knife edge and an inner contour knife edge. The first bottom roller is provided with an outer contour cutting-avoiding groove corresponding to the position of the outer contour knife edge of the knife roller. The automatic die cutting machine of the application has a compact and smooth structure of two bottom rollers and one knife roller, and the working efficiency can be 1.5 times or more than that of the same type of equipment. The effect of removing waste materials is remarkable, and the product yield can reach 100%. The application can be applied to the processing of similar film materials such as facial masks and eye masks.

Description

Technical Field

[0001] This invention relates to a bottom roller, and more particularly to a die-cutting bottom roller for processing and forming film materials such as face masks. This invention also relates to a die-cutting assembly and an automatic die-cutting machine, belonging to the field of die-cutting. Background Technology

[0002] In the processing of film materials with outer and inner contours, such as face masks and eye masks, an automatic die-cutting machine with a die-cutting component is usually used. The traditional die-cutting component mainly consists of a cutting roller and a bottom roller. In order to separate the cut waste from the film material, air blowing or suction devices and scrapers are also installed to remove the waste. However, due to unreasonable aspects in the design of the bottom roller and other die-cutting components, as well as the air blowing or suction methods, the waste still cannot be completely removed from the formed film material, or the processing efficiency has to be reduced in order to remove the waste, such as by adding manual sorting or adding cutting rollers. Summary of the Invention

[0003] To address the problems existing in the prior art, the first objective of this invention is to provide a die-cutting bottom roller.

[0004] A second objective of this invention is to provide a die-cutting assembly.

[0005] The third objective of this invention is to provide an automatic die-cutting machine.

[0006] The first objective of this invention is achieved through the following technical solution:

[0007] A die-cutting bottom roller includes a roller body with cut-avoiding grooves on its surface.

[0008] The shape of the cut-avoiding groove is the preset outer contour shape of the molded film material.

[0009] The shape of the cut-avoiding groove is the pre-defined inner contour shape of all or part of the molded film material.

[0010] The roller body has air suction holes.

[0011] The air intake hole is located within the inner contour of the molded film.

[0012] The air intake hole is located outside the inner contour range of the formed film material but inside the outer contour range of the formed film material.

[0013] The air intake can be connected to an external suction device.

[0014] The roller body has an air passage, one end of which is connected to the outside of the die-cutting bottom roller, and the other end is connected to the air suction hole.

[0015] The second objective of this invention is achieved through the following technical solution:

[0016] A die-cutting assembly includes two or more die-cutting bottom rollers and a cutting roller. The die-cutting bottom rollers cooperate with the cutting roller and surround the cutting roller. The cutting roller is provided with an outer contour cutting edge and an inner contour cutting edge. The roller body surface of the die-cutting bottom roller is provided with a cutting avoidance groove.

[0017] The die-cutting bottom roller has suction holes on its body, which can be connected to an external suction device.

[0018] The die-cutting bottom roller has an air channel inside, one end of which is connected to the outside of the die-cutting bottom roller, and the other end is connected to the air suction hole.

[0019] The die-cutting bottom roller is divided into a first bottom roller and a second bottom roller. The cutter roller is located between the first bottom roller and the second bottom roller and cooperates with the cutter roller respectively. The cutter roller is provided with an outer contour cutting edge and an inner contour cutting edge. The roller body surface of the first bottom roller is provided with an outer contour avoidance groove corresponding to the position of the outer contour cutting edge of the cutter roller.

[0020] The surface of the second bottom roller is provided with an inner contour avoidance groove corresponding to the position of the inner contour blade of the cutter roller.

[0021] The depth of the avoidance groove is greater than the thickness of the film material to be cut, and the width of the avoidance groove is greater than the width of the corresponding blade of the cutter roller.

[0022] The first bottom roller has an air suction hole on its roller body. The air suction hole is located at a position corresponding to the cutting range of the inner contour of the cutter roller. The air suction hole can be connected to an external suction device.

[0023] The second bottom roller has an air suction hole on its roller body. The position of the air suction hole corresponds to the area enclosed between the outer contour blade and the inner contour blade of the cutter roller. The air suction hole can be connected to an external suction device.

[0024] The first bottom roller and the second bottom roller each have an air passage inside their roller bodies. One end of the air passage is connected to the outside of their respective bottom rollers, and the other end is connected to their respective air intake holes.

[0025] The third objective of this invention is achieved through the following technical solution.

[0026] An automatic die-cutting machine includes a blade holder and a die-cutting assembly. The die-cutting assembly is mounted on the blade holder and includes two die-cutting bottom rollers and a cutting roller. The die-cutting bottom rollers are a first bottom roller and a second bottom roller, respectively. The cutting roller is located between the first bottom roller and the second bottom roller. The cutting roller has an outer contour cutting edge and an inner contour cutting edge. The surface of the first bottom roller has an outer contour anti-cutting groove corresponding to the position of the outer contour cutting edge of the cutting roller. When the cutting roller and the bottom rollers begin to rotate relative to each other, and the film material passes between the first bottom roller and the cutting roller, the outer contour cutting edge is suspended at the position of the outer contour groove, so the outer contour of the film material is not cut through and can be retained for the next process. The inner contour cutting edge of the cutting roller (e.g., the eye, nose, or mouth position) contacts the smooth surface of the first bottom roller and cuts through the inner contour portion (e.g., the eye, nose, or mouth position).

[0027] The automatic die-cutting machine also includes a suction device. The first bottom roller has suction holes, the positions of which correspond to the location of the inner contour film waste cut by the inner contour blade of the cutting roller. The suction holes are connected to the suction device. When the inner contour film begins to be cut, the suction holes and suction device are connected, and the cut inner contour film waste is adsorbed onto the surface of the first bottom roller. As the first bottom roller rotates, the inner contour film waste leaves the cutting roller and separates from the film. Simultaneously, the suction holes on the first bottom roller and the suction device close, the suction force is broken, and the inner contour film waste falls from the first bottom roller or is scraped off by the scraper on the die-cutting machine. Because the suction holes are located on the first bottom roller, waste material is prevented from sticking to the cutting roller, and separation of waste material from the film material is ensured.

[0028] The second bottom roller has an inner contour avoidance groove on its surface that corresponds to the inner contour cutting edge of the cutter roller. When the film material passes between the second bottom roller and the cutter roller, the inner contour cutting edge is suspended in the inner contour avoidance groove, which can avoid the risk of generating new waste material due to repeated cutting of the inner contour.

[0029] An air suction hole is provided on the body of the second bottom roller. The position of the air suction hole corresponds to the area enclosed between the outer contour blade and the inner contour blade of the cutter roller. The air suction hole is connected to a suction device to ensure that after the outer contour of the film is cut, the formed film follows the rotation of the second bottom roller and is not carried away by the cutter roller. After the formed film leaves the cutter roller, the suction on the second bottom roller is broken, and the formed film enters the finished product conveyor belt, while the waste edge material is rolled away by the waste edge winding machine.

[0030] The first bottom roller and the second bottom roller each have an air passage inside their roller bodies. One end of the air passage is connected to the outside of their respective bottom rollers, and the other end is connected to their respective air intake holes.

[0031] The first bottom roller and the second bottom roller rotate synchronously in opposite directions with the cutter roller.

[0032] The first bottom roller, the cutter roller, and the second bottom roller are connected by a gear set, which consists of three gears of the same specification. One gear is fixedly installed on the shaft at the same end of the first bottom roller, the cutter roller, and the second bottom roller.

[0033] The gear mounted on the cutter roller is the driving gear, and the gears mounted on the first bottom roller and the second bottom roller are the driven gears, respectively.

[0034] The outer contour blade on the blade roller is a mask-shaped blade (face-shaped blade) or an eye-shaped blade, and the inner contour blade is one or a combination of two or three of the following: eye-shaped blade, mouth-shaped blade, and nose-shaped blade.

[0035] The outer contour avoidance groove on the first bottom roller is a mask-shaped avoidance groove or an eye mask-shaped avoidance groove.

[0036] The inner contour avoidance groove on the second bottom roller is one or a combination of two or three of the following: eye-shaped avoidance groove, mouth-shaped avoidance groove, and nose-shaped avoidance groove.

[0037] The automatic die-cutting machine is also equipped with a finished product conveyor belt and a finished product delivery roller. The finished product delivery roller is adjacent to the discharge side of the second bottom roller and is located at the front end of the finished product conveyor belt. Its roller body presses on the finished product conveyor belt, which can carry the finished film material on the second bottom roller onto the finished product conveyor belt.

[0038] Compared with the prior art, the present invention has the following advantages:

[0039] (1) The die-cutting bottom roller of the present invention is designed to have cutting grooves and air suction holes on the roller body. When applied, it can not only realize die-cutting in stages, but also allow the cut waste or finished film material to be adsorbed on the surface of the roller body without sticking to the blade roller, ensuring that the waste material is separated from the film material and will not be carried into the next cutting process. It can be used in most fields of film material cutting in stages.

[0040] (2) The die-cutting assembly of the present invention can combine two or more die-cutting bottom rollers and one cutting roller according to design requirements, and provide anti-cutting grooves on the roller body surface of each die-cutting bottom roller according to design requirements, and open suction holes on the roller body of the die-cutting bottom roller that can communicate with an external suction device. It provides an automatic die-cutting machine with a mechanical component that can cut out the inner and outer contours of the film material in multiple times and ensure zero waste on the finished film material, solving the problem of low yield caused by incomplete waste removal during one-time forming of film material in the prior art.

[0041] (3) The automatic die-cutting machine of the present invention, by providing an outer contour groove on the surface of the first bottom roller that cooperates with the outer contour blade of the cutter roller and is suspended, ensures that when the film material passes between the first bottom roller and the cutter roller, only the inner contour is cut off, while the outer contour is not cut off. The outer contour of the semi-formed film material is cut off and formed when it passes between the second bottom roller and the cutter roller. In this way, only one cutter roller is needed to achieve two consecutive cuts, which not only improves production efficiency, but also ensures that waste is separated from the film material before forming, thereby improving the yield.

[0042] (4) By setting an inner contour groove on the surface of the second bottom roller that is suspended in the air and cooperates with the inner contour blade of the cutter roller, it is ensured that when the semi-finished film material passes between the second bottom roller and the cutter roller, only the outer contour is cut off, thus avoiding the inner contour of the semi-finished film material being repeatedly cut and potentially generating new waste.

[0043] (5) By opening an air suction hole on the surface of the first bottom roller at the position where the film material is cut by the inner contour blade of the cutter roller, it is ensured that the cut waste material is adsorbed on the surface of the first bottom roller and separated from the film material, and is not carried into the next process.

[0044] (6) By opening suction holes on the surface of the second bottom roller corresponding to the location of the film material, it is ensured that the formed film material is adsorbed on the surface of the second bottom roller and detached from the cutter roller after the outer contour of the film material is cut.

[0045] (7) The automatic die-cutting machine of the present invention abandons the traditional structure of one bottom roller and one cutter roller, or one bottom roller and two cutter rollers, or two bottom rollers and two cutter rollers. Through the optimized die-cutting bottom roller design and the adoption of a compact and smooth two bottom rollers and one cutter roller structure, the working efficiency can reach more than 1.5 times that of similar equipment, the waste removal effect is significant, and the yield rate can reach 100%. The present invention can be applied to the processing of similar film materials such as face masks and eye masks. Attached Figure Description

[0046] Figure 1 These are schematic diagrams of the die-cutting bottom roller structure for Examples 1 and 3;

[0047] Figure 2 yes Figure 1 Rear view;

[0048] Figure 3 yes Figure 2 Sectional view along axis AA;

[0049] Figure 4 yes Figure 1 A three-dimensional image;

[0050] Figure 5 These are schematic diagrams of the die-cutting bottom roller structure in Examples 2 and 3;

[0051] Figure 6 yes Figure 1 Rear view;

[0052] Figure 7 yes Figure 6 BB cross-section;

[0053] Figure 8 yes Figure 1 A three-dimensional image;

[0054] Figure 9 This is a schematic diagram of the die-cutting component structure in Example 3;

[0055] Figure 10 yes Figure 9 A schematic diagram of the cutter roller structure in the diagram;

[0056] Figure 11 yes Figure 10 A bottom view of the cutter roller;

[0057] Figure 12 yes Figure 10 Top view of the cutter roller;

[0058] Figure 13 This is a schematic diagram of the structure of an automatic mask die-cutting machine according to Example 4;

[0059] Figure 14 This is a schematic diagram of the working process of the automatic die-cutting machine in Example 4;

[0060] Figure 15 This is a schematic diagram of the process of die-cutting the film material into a finished face mask according to Example 4;

[0061] Figure 16 This is a schematic diagram of the process of die-cutting the membrane material into an eye mask product according to Example 5. Detailed Implementation

[0062] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0063] Example 1

[0064] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The image shows one embodiment of a die-cutting bottom roller for a face mask according to the present invention. The die-cutting bottom roller 1 includes a roller body 11. The surface of the roller body 11 has an outer contour avoidance groove 12 corresponding to the outer contour of the face mask. The roller body 11 also has air suction holes 13, which are located at the eye and mouth positions of the face mask, respectively. An air channel 14 is formed inside the roller body 11. One end of the air channel 14 is connected to the outside of the die-cutting bottom roller, and the other end is connected to the air suction hole 13.

[0065] Example 2

[0066] like Figure 5 , Figure 6 , Figure 7 , Figure 8 The following is a second embodiment of the die-cutting bottom roller for face masks according to the present invention. The die-cutting bottom roller 1 includes a roller body 11. The surface of the roller body 11 has inner contour avoidance grooves 15 corresponding to the inner contour of the face mask. The inner contour avoidance grooves 15 include eye contour avoidance grooves, mouth contour avoidance grooves and nose contour avoidance grooves. The roller body 11 has an air suction hole 13. The air suction hole 13 is located at the center line of the face mask (or it can be located at other film material positions of the face mask). In use, the air suction hole 13 can be connected to an external suction device.

[0067] Example 3

[0068] like Figure 9-12 The figure shows one embodiment of a die-cutting assembly of the present invention, including two die-cutting bottom rollers 1 and a cutting roller 2. The two die-cutting bottom rollers 1 are a first bottom roller A and a second bottom roller B, respectively. The first bottom roller A and the second bottom roller B surround the cutting roller 2 and cooperate with the cutting roller 2. The cutting roller 2 is provided with an outer contour cutting edge 21 and an inner contour cutting edge 22. The roller body surface of the first bottom roller A is provided with an outer contour avoidance groove 12 corresponding to the position of the outer contour cutting edge 21 of the cutting roller 2.

[0069] The surface of the second bottom roller B is provided with an inner contour avoidance groove 15 corresponding to the position of the inner contour blade 22 of the cutter roller. The depth of the outer contour avoidance groove 12 and the inner contour avoidance groove 15 is greater than the thickness of the film material, and the width of the outer contour avoidance groove 12 and the inner contour avoidance groove 15 is greater than the width of the corresponding cutter roller blade.

[0070] The first bottom roller A has an air suction hole 13 on its roller body. The air suction hole 13 is located at a position corresponding to the cutting range of the inner contour blade 22 of the cutter roller. The air suction hole 13 can be connected to an external suction device.

[0071] The second bottom roller B has an air suction hole 13 on its roller body. The position of the air suction hole 13 corresponds to the area enclosed between the outer contour blade 21 and the inner contour blade 22 of the cutter roller. The air suction hole 13 can be connected to an external suction device.

[0072] The first bottom roller A and the second bottom roller B each have an air passage 14 inside their roller bodies. One end of the air passage 14 is connected to the outside of their respective bottom rollers, and the other end is connected to their respective air suction holes 13.

[0073] Example 4

[0074] like Figures 13-15The diagram illustrates one embodiment of an automatic die-cutting machine according to the present invention. It includes a die-cutting assembly mounted on a blade holder 3 and a suction device 5. The die-cutting assembly includes a first bottom roller A, a second bottom roller B, and a blade roller 2. The blade roller 2 is located between the first bottom roller A and the second bottom roller B. The first bottom roller A, the blade roller 2, and the second bottom roller B are connected by a gear set 9, which consists of three gears of the same specification. One gear is fixedly mounted on the shaft at the same end of each of the first bottom roller A, the blade roller 2, and the second bottom roller B. The gear mounted on the blade roller 2 is the driving gear, and the gears mounted on the first bottom roller A and the second bottom roller B are driven gears, respectively. During operation, the first bottom roller A and the second bottom roller B rotate synchronously in opposite directions with the blade roller 2.

[0075] The cutting roller 2 is provided with an outer contour cutting edge 21 and an inner contour cutting edge 22. The surface of the first bottom roller A is provided with an outer contour avoidance groove 12 corresponding to the position of the outer contour cutting edge 21 of the cutting roller. When the cutting roller 2, the first bottom roller A, and the second bottom roller B begin to rotate relative to each other, and the film material 4 passes between the first bottom roller A and the cutting roller 2, since the depth of the outer contour avoidance groove 12 is greater than the thickness of the film material and the width is greater than the width of the corresponding outer contour cutting edge 21, the outer contour cutting edge 21 is suspended at the position of the outer contour avoidance groove 12. Therefore, the outer contour of the film material 4 will not be cut through and can be retained for the next process. The inner contour cutting edge 22 of the cutting roller (e.g., the position of the eyes, nose, and mouth) contacts the smooth surface of the first bottom roller A and cuts through the inner contour part of the film material 4 (e.g., the position of the eyes, nose, and mouth). The first bottom roller A has an air suction hole 13, the position of which corresponds to the location of the inner contour film waste 41 cut by the inner contour blade 22 of the cutter roller. The air suction hole 13 can be connected to the suction device 5. When the inner contour blade 22 of the cutter roller begins to contact the smooth surface of the first bottom roller A, the air suction hole 13 is connected to the suction device 5, and the cut inner contour film waste 41 is adsorbed onto the surface of the first bottom roller A and rotates with the first bottom roller A. After the inner contour film waste 41 leaves the cutter roller 2 and the film 4, the channel between the air suction hole 13 on the first bottom roller A and the suction device 5 is closed, the suction is broken, and the inner contour film waste 41 falls from the first bottom roller A or is scraped off by the scraper 6 on the die-cutting machine. Since the air suction hole 13 is located on the first bottom roller A, it can prevent the inner contour film waste 41 from sticking to the cutter roller 2 and ensure that the inner contour film waste 41 is separated from the film 4.

[0076] The second bottom roller B has an inner contour avoidance groove 15 on its surface, which corresponds to the inner contour cutting edge 22 of the cutter roller. When the film material 4 passes between the second bottom roller B and the cutter roller 2, since the depth of the inner contour avoidance groove 15 is greater than the thickness of the film material and the width is greater than the width of the inner contour cutting edge 22, the inner contour cutting edge 21 is suspended at the position of the inner contour avoidance groove 15, which can avoid the risk of generating new waste due to repeated cutting of the inner contour of the film material 4.

[0077] An air suction hole 13 is opened on the surface of the second bottom roller B at the position corresponding to the film material 4. The air suction hole 13 is connected to the suction device 5 to ensure that after the outer contour of the film material 4 is cut off, the formed film material 43 is adsorbed on the surface of the second bottom roller B and rotates with the second bottom roller B without being taken away by the cutter roller 2. After the formed film material 43 leaves the cutter roller 2, the suction on the second bottom roller B is broken, the formed film material 43 enters the finished product conveyor belt 7, and the waste edge material 42 is rolled away by the winding machine 8.

[0078] The outer contour blade 21 on the blade roller 2 is a mask-shaped blade (face-shaped blade) or an eye-shaped blade, and the inner contour blade 22 is one or a combination of two or three of the following: eye-shaped blade, mouth-shaped blade, and nose-shaped blade.

[0079] The outer contour avoidance groove 12 on the first bottom roller A is a mask-shaped avoidance groove or an eye mask-shaped avoidance groove.

[0080] The inner contour avoidance groove 12 on the second bottom roller B is one or a combination of two or three of the following: eye-shaped avoidance groove, mouth-shaped avoidance groove, and nose-shaped avoidance groove.

[0081] The automatic die-cutting machine is also equipped with a finished product conveying roller 10. The finished product conveying roller 10 is adjacent to the discharge side of the second bottom roller B and is located at the front end of the finished product conveyor belt 7. Its roller body presses on the finished product conveyor belt 7. The winding machine 8 winds up the waste edge material 42 and can simultaneously carry the finished film material 43 on the second bottom roller B onto the finished product conveyor belt 7.

[0082] Example 5

[0083] Figure 16 The process steps for die-cutting film material into finished eye masks using the automatic die-cutting machine of this invention are as follows:

[0084] Process 1: Since the first bottom roller is equipped with an eye-cutting groove and an air suction hole on the outer contour of the eye film, when the film material passes through the first bottom roller and the cutter roller, the cutter roller only cuts out the eye holes on the film material. The cut-out eye hole film waste is adsorbed on the first bottom roller. When the waste material is transferred away from the cutter roller and the film material, the suction is broken, and the waste material falls off the first bottom roller or is transferred to the scraper of the automatic die-cutting machine and scraped out.

[0085] Step 2: When the membrane material with the eye holes cut out passes between the cutting roller and the second bottom roller, the outer contour of the membrane material is cut through. Since the second bottom roller is provided with an inner contour avoidance groove and an air suction hole corresponding to the eye part of the membrane, the membrane material at the eye part will not be repeatedly die-cut in this step, which may generate new waste. The cut-out shaped membrane is adsorbed onto the second bottom roller.

[0086] Step 3: When the formed eye mask rotates away from the cutting roller, the suction breaks and it enters the conveyor belt, completing the finished eye mask product.

[0087] This invention is applicable to die-cutting various products with outer and inner contours, such as eye masks, face masks, face shields, and eye patches. This invention is not limited to the above embodiments; any solution described in this specification and claims, or its equivalent substitutions, can be implemented.

Claims

1. A die-cutting assembly, characterized in that: It includes two or more die-cutting bottom rollers and a cutting roller. The die-cutting bottom rollers cooperate with the cutting roller and surround the cutting roller. The cutting roller is provided with an outer contour cutting edge and an inner contour cutting edge. The roller body surface of the die-cutting bottom roller is provided with a cutting avoidance groove.

2. A die-cutting assembly according to claim 1, characterized in that: The die-cutting bottom roller has suction holes on its body, which can be connected to an external suction device.

3. A die-cutting assembly according to claim 2, characterized in that: The die-cutting bottom roller has an air passage inside its body. One end of the air passage is connected to the outside of the die-cutting bottom roller, and the other end is connected to the air suction hole.

4. A die-cutting assembly according to claim 1, 2, or 3, characterized in that: The die-cutting bottom roller is divided into a first bottom roller and a second bottom roller. The cutter roller is located between the first bottom roller and the second bottom roller and cooperates with the cutter roller respectively. The cutter roller is provided with an outer contour cutting edge and an inner contour cutting edge. The roller body surface of the first bottom roller is provided with an outer contour avoidance groove corresponding to the position of the outer contour cutting edge of the cutter roller.

5. A die-cutting assembly according to claim 4, characterized in that: The surface of the second bottom roller is provided with an inner contour avoidance groove corresponding to the position of the inner contour blade of the cutter roller.

6. A die-cutting assembly according to claim 5, characterized in that: The first bottom roller has an air suction hole on its roller body. The air suction hole is located at a position corresponding to the cutting range of the inner contour of the cutter roller. The air suction hole can be connected to an external suction device.

7. A die-cutting assembly according to claim 6, characterized in that: The second bottom roller has an air suction hole on its roller body. The position of the air suction hole corresponds to the area enclosed between the outer contour blade and the inner contour blade of the cutter roller. The air suction hole can be connected to an external suction device.

8. A die-cutting assembly according to claim 7, characterized in that: The first bottom roller and the second bottom roller each have an air passage inside their roller bodies. One end of the air passage is connected to the outside of their respective bottom rollers, and the other end is connected to their respective air intake holes.

9. A die-cutting assembly according to claim 8, characterized in that: The depth of the avoidance groove is greater than the thickness of the film material to be cut, and the width of the avoidance groove is greater than the width of the corresponding blade of the cutting roller.

10. An automatic die-cutting machine, comprising a blade holder and a die-cutting assembly, the die-cutting assembly being mounted on the blade holder, characterized in that: The die-cutting assembly includes two die-cutting bottom rollers and a cutting roller. The die-cutting bottom rollers are a first bottom roller and a second bottom roller, respectively. The cutting roller is located between the first bottom roller and the second bottom roller. The cutting roller is provided with an outer contour cutting edge and an inner contour cutting edge. The roller body surface of the first bottom roller is provided with an outer contour avoidance groove corresponding to the position of the outer contour cutting edge of the cutting roller.

11. An automatic die-cutting machine according to claim 10, characterized in that: It also includes a suction device, and the first bottom roller has suction holes on its roller body. The position of the suction holes corresponds to the position of the inner contour film waste cut by the inner contour blade of the cutter roller. The suction holes can be connected to the suction device.

12. An automatic die-cutting machine according to claim 11, characterized in that: The surface of the second bottom roller is provided with an inner contour avoidance groove corresponding to the inner contour cutting edge of the cutter roller.

13. An automatic die-cutting machine according to claim 12, characterized in that: An air suction hole is provided on the body of the second bottom roller. The position of the air suction hole corresponds to the area enclosed between the outer contour blade and the inner contour blade of the cutter roller. The air suction hole is connected to a suction device.

14. An automatic die-cutting machine according to claim 13, characterized in that: The first bottom roller and the second bottom roller each have an air passage inside their roller bodies. One end of the air passage is connected to the outside of their respective bottom rollers, and the other end is connected to their respective air intake holes.

15. An automatic die-cutting machine according to claim 13 or 14, characterized in that: The first bottom roller and the second bottom roller rotate synchronously in opposite directions with the cutter roller.

16. An automatic die-cutting machine according to claim 15, characterized in that: The first bottom roller, the cutter roller, and the second bottom roller are connected by a gear set, which consists of three gears of the same specification. One gear is fixedly installed on the shaft at the same end of the first bottom roller, the cutter roller, and the second bottom roller.

17. An automatic die-cutting machine according to claim 16, characterized in that: The gear mounted on the cutter roller is the driving gear, and the gears mounted on the first bottom roller and the second bottom roller are the driven gears, respectively.

18. An automatic die-cutting machine according to claim 10 or 11, characterized in that: The outer contour blade on the blade roller is a mask-shaped blade or an eye mask-shaped blade, and the inner contour blade is one or a combination of two or three of the following: an eye-shaped blade, a mouth-shaped blade, and a nose-shaped blade.

19. An automatic die-cutting machine according to claim 10, characterized in that: The outer contour avoidance groove on the first bottom roller is a mask-shaped avoidance groove or an eye mask-shaped avoidance groove.

20. An automatic die-cutting machine according to claim 12, characterized in that: The inner contour avoidance groove on the second bottom roller is one or a combination of two or three of the following: eye-shaped avoidance groove, mouth-shaped avoidance groove, and nose-shaped avoidance groove.

21. An automatic die-cutting machine according to claim 17, characterized in that: The automatic die-cutting machine is also equipped with a finished product conveyor belt and a finished product output roller. The finished product output roller is adjacent to the output side of the second bottom roller and is located at the front end of the finished product conveyor belt, with its roller body pressing on the finished product conveyor belt.

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