CN217861706U

CN217861706U - Die cutting device

Info

Publication number: CN217861706U
Application number: CN202220735375.2U
Authority: CN
Inventors: 周忠泽; 牛金虎; 林绍豊; 张瑞鹏; 杨振坤
Original assignee: Fulian Technology Lankao Co ltd
Current assignee: Fulian Technology Lankao Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-11-22
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a cutting device, including the cuticle unreel roller, mucosa unreel roller, waste material wind-up roll, mucosa wind-up roll, first cross cutting unit and first rolling unit. The utility model provides a protective film for the first die cutting unit through the protective film unreeling roller, the adhesive film unreeling roller provides the adhesive film for the first die cutting unit, the protective film passes between the second steel shaft and the first knife mold shaft, the first knife mold shaft die cuts the protective film layer, and the adhesive film is recovered by the adhesive film reeling roller; the waste material is recycled by the waste material winding roller; the protective film after die cutting passes through the space between the second steel shaft and the first knife mold shaft to obtain a finished protective film.

Description

Die cutting device

Technical Field

The utility model relates to a cross cutting technical field, concretely relates to cutting device.

Background

In order to improve the performance of electronic products, a protective film is usually attached to the surface of the electronic product, the protective film is usually formed by multiple times of pressing and die cutting through a die cutting device, the multiple times of pressing and die cutting lead to the fact that the die cutting device needs to be respectively carried out on multiple stations, most die cutting devices are installed on a die cutting machine table, however, the installation stations of the die cutting machine table are limited, and the die cutting device cannot be successfully installed due to the fact that the stations of the die cutting machine table are insufficient.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a die cutting device to solve the above problems.

An embodiment of the utility model provides a die cutting device, including protection film unreeling roller, mucosa unreeling roller, waste material wind-up roll, mucosa wind-up roll, first die cutting unit and first rolling unit, die cutting device has first die cutting station and second die cutting station, first die cutting station with second die cutting station sets gradually from the front backward along same horizontal direction, first die cutting unit is located first die cutting station, first rolling unit is located second die cutting station, first die cutting unit includes driving piece, the first glue axle that sets gradually from top to bottom, first steel axle, recess axle, first sword mould axle, second steel axle, the driving piece is used for driving second steel axle rotates, second steel axle with first sword mould axle meshing, recess axle with first mould axle meshing, first steel axle with the recess axle meshing, first glue axle with first steel axle meshing, first rolling unit includes the second glue axle that sets gradually from top to bottom, third steel axle meshing with the second sword mould axle;

the protective film unwinding roller and the mucosa unwinding roller are sequentially arranged from top to bottom, the protective film unwinding roller is used for providing a protective film for the first die cutting unit, the mucosa unwinding roller is used for providing a mucosa for the first die cutting unit, the protective film sequentially penetrates through a position between the first rubber shaft and the first steel shaft and a position between the second steel shaft and the first knife mold shaft, and the mucosa penetrates through a position between the second steel shaft and the first knife mold shaft;

the waste material winding roller and the mucosa winding roller are sequentially arranged from top to bottom, the waste material winding roller is used for recycling waste materials after die cutting of the first die cutting unit, and the mucosa winding roller is used for recycling mucosa after die cutting of the first die cutting unit.

In some embodiments, the die cutting device further comprises a guide shaft located on a side of the first die cutting unit away from the first winding unit; the protective film penetrates through the space between the first rubber shaft and the first steel shaft and then is guided by the guide shaft to penetrate through the space between the second steel shaft and the first cutter die shaft for die cutting.

In some embodiments, the die cutting device further comprises a protective film take-up roll for recycling the protective film passing between the second glue spool and the third steel spool.

In some embodiments, the die-cutting device further includes a supporting frame and a plurality of supporting members, the supporting frame is provided with an adjusting groove, the supporting members are disposed in the adjusting groove of the supporting frame, each supporting member has a bearing groove, two ends of the first rubber shaft, the first steel shaft, the groove shaft, the first knife mold shaft and the second steel shaft are sequentially disposed in the bearing grooves from top to bottom, the die-cutting device further includes an adjusting assembly, the adjusting assembly includes a fixing member and an adjusting member, the fixing member is fixedly disposed on the supporting frame, and the adjusting member movably penetrates through the fixing member and abuts against the supporting member corresponding to the first rubber shaft.

In some embodiments, the die-cutting device further has a third die-cutting station, the first die-cutting station, the second die-cutting station and the third die-cutting station are sequentially arranged from front to back in the same horizontal direction, the die-cutting device further comprises a second die-cutting unit, a substrate film unwinding roller and a substrate film winding roller, the second die-cutting unit is located at the third die-cutting station, the substrate film unwinding roller is used for providing a substrate film for the second die-cutting unit, and the substrate film winding roller is used for recycling the substrate film after die-cutting by the second die-cutting unit.

In some embodiments, the second die cutting unit comprises a second die shaft and a fourth steel shaft which are arranged from top to bottom in sequence, and the second die shaft is meshed with the fourth steel shaft.

In some embodiments, the die-cutting device further has a fourth die-cutting station provided with a second winding unit and a fifth die-cutting station provided with a third die-cutting unit;

the first die cutting station, the fourth die cutting station, the fifth die cutting station, the second die cutting station and the third die cutting station are sequentially arranged from front to back along the same horizontal direction;

the die cutting device is also provided with a cover film unwinding roller and a cover film winding roller, the cover film unwinding roller is used for providing a cover film for the second winding unit, and the cover film winding roller is used for recycling the cover film die-cut by the third die cutting unit.

In some embodiments, the third die cutting unit comprises a third die shaft and a fifth steel shaft which are arranged from top to bottom in sequence, and the third die shaft is meshed with the fifth steel shaft.

In some embodiments, the second winding unit includes a third rubber shaft and a sixth steel shaft which are sequentially arranged from top to bottom, and the third rubber shaft is engaged with the sixth steel shaft.

In some embodiments, the die cutting device further comprises a transmission shaft engaged with the second steel shaft, and the driving member is used for driving the transmission shaft to rotate.

In the die cutting device, the protective film is provided for the first die cutting unit through the protective film unwinding roller, the adhesive film unwinding roller provides the adhesive film for the first die cutting unit, the protective film passes through the space between the second steel shaft and the first die shaft, the first die shaft die cuts the protective film layer, and the adhesive film is recovered by the adhesive film winding roller; recovering the waste by a waste winding roller; after the protective film after the cross cutting passes through between second steel axle and the first cutting die axle, retrieve by protection film wind-up roll, the device simple structure, only need two stations can accomplish the processing of protective film, save space.

Drawings

Fig. 1A is a schematic view of a protective film according to an embodiment of the present invention.

Fig. 1B is a schematic view of the protective film after one-time die cutting according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a die cutting device according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of a first die cutting unit according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a die cutting device according to another embodiment of the present invention.

Fig. 5 is a schematic view of the protective film after the secondary die-cutting according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a die cutting device according to another embodiment of the present invention.

Fig. 7 is a schematic view of the protective film after three times of die cutting according to an embodiment of the present invention.

Description of the main elements

Die cutting device 100

Protective film unwinding roller 10

Adhesive film unwinding roller 20

Waste material wind-up roll 30

Mucosa wind-up roll 40

Protective film wind-up roll 50

First die cutting unit 60

First winding unit 70

First die cutting station 1

Second die-cutting station 2

First rubber shaft 61

First steel shaft 62

Grooved shaft 63

First cutting die shaft 64

Second steel shaft 65

Second glue axle 71

Third steel shaft 72

Protective film 200

Release film layer 210

Protective film layer 220

Guide shaft 80

Support 83

Support frame 84

Regulating tank 841

Base 843

Vertical plate 845

Bearing groove 831

Adjustment assembly 85

Fixing member 851

Adjusting part 852

Drive shaft 86

Third die-cutting station 3

Second die cutting unit 90

Substrate film unwinding roller 91

Substrate film take-up roll 92

Second cutting die shaft 901

Fourth steel shaft 902

Fourth die-cutting station 4

Fifth die-cutting station 5

Second winding unit 93

Third die-cutting unit 94

Cover film unwinding roller 95

Cover film wind-up roll 96

Release film unwinding roller 97

Third cutting die shaft 941

Fifth Steel Axis 942

Third rubber shaft 931

Sixth steel shaft 932

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically, electrically or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The die cutting device provided by the embodiment of the application provides the protective film through the protective film unwinding roller, the first rubber shaft, the first steel shaft, the groove shaft, the first knife die shaft and the second steel shaft are sequentially arranged at the first die cutting station from top to bottom, and the first die cutting unit at the first die cutting station performs die cutting on the protective film and then winds the protective film by the first winding unit at the second die cutting station, so that a finished protective film is obtained.

Referring to fig. 1A, in which fig. 1A is a schematic view of a protective film 200 provided by the present application before die cutting, the protective film 200 includes a release film layer 210 and a protective film layer 220 compounded on the release film layer 210. Fig. 1B is a schematic diagram of the protective film 200 after one-time die cutting by the die cutting device provided by the present application.

Of course, in other embodiments, the protective film 200 after die cutting may have other structures, which is not limited in this application.

Referring to fig. 2-3, a die-cutting device 100 according to an embodiment of the present disclosure includes a protective film unwinding roller 10, a mucosa unwinding roller 20, a waste winding roller 30, a mucosa winding roller 40, a first die-cutting unit 60, and a first winding unit 70, where the die-cutting device 100 has a first die-cutting station 1 and a second die-cutting station 2.

The first die cutting station 1 and the second die cutting station 2 are arranged in sequence from front to back along the same horizontal direction.

The first die cutting unit 60 is located at the first die cutting station 1, the first die cutting unit 60 includes a driving member (not shown in fig. 1), a first rubber shaft 61, a first steel shaft 62, a groove shaft 63, a first cutter shaft 64, and a second steel shaft 65, which are sequentially arranged from top to bottom, the second steel shaft 65 is engaged with the first cutter shaft 64, the groove shaft 63 is engaged with the first cutter shaft 64, the first steel shaft 62 is engaged with the groove shaft 63, the first rubber shaft 61 is engaged with the first steel shaft 62, the driving member is used for driving the second steel shaft 65 to rotate, the second steel shaft 65 drives the first cutter shaft 64 to rotate, the first cutter shaft 64 drives the groove shaft 63 to rotate, the groove shaft 63 drives the first steel shaft 62 to rotate, the first steel shaft 62 drives the first rubber shaft 61 to rotate, and thus, the single driving member can drive the first rubber shaft 61, the first steel shaft 62, the groove shaft 63, the first cutter shaft 64, and the second steel shaft 65 to simultaneously rotate.

The first rolling unit 70 is located at the second die cutting station 2, the first rolling unit 70 comprises a second rubber shaft 71 and a third steel shaft 72 which are sequentially arranged from top to bottom, and the second rubber shaft 71 is meshed with the third steel shaft 72.

The protective film unwinding roller 10 and the adhesive film unwinding roller 20 are sequentially arranged from top to bottom, the protective film unwinding roller 10 is used for providing a protective film for the first die-cutting unit 60, the adhesive film unwinding roller 20 is used for providing an adhesive film for the first die-cutting unit 60, the protective film sequentially penetrates through a position between the first rubber shaft 61 and the first steel shaft 62 and a position between the second steel shaft 65 and the first knife-cutting shaft 64, and the adhesive film penetrates through a position between the second steel shaft 65 and the first knife-cutting shaft 64;

the waste material winding roller 30 and the mucosa winding roller 40 are sequentially arranged from top to bottom, the waste material winding roller 30 is used for recycling waste materials after die cutting of the first die cutting unit 60, and the mucosa winding roller 40 is used for recycling mucosa after die cutting of the first die cutting unit 60, so that a finished product protective film is obtained.

The implementation process of the embodiment:

the protective film unwinding roller 10 provides the protective film 200 to the first die-cutting unit 60, and the adhesive film unwinding roller 20 provides the adhesive film to the first die-cutting unit 60, wherein the adhesive film is positioned below the protective film 200 and used as a substrate of the protective film 200;

the protective film 200 passes through the space between the second steel shaft 65 and the first cutting die shaft 64, the first cutting die shaft 64 cuts the protective film layer 220 in a die mode to generate frame waste and small hole waste of the protective film layer 220, and the small hole waste is adhered to the adhesive film and is recovered by the adhesive film winding roller 40; frame waste is recovered by a waste take-up roll 30;

the die-cut protective film 200 passes through the space between the second steel shaft 65 and the first cutting die shaft 64 and is then recovered by the protective film take-up roll 50, and referring to fig. 1B again, the die-cut protective film 200 includes a release film layer 210 and a plurality of protective film layers 220 uniformly arranged at intervals on the release film layer 210.

In this embodiment, the second glue shaft 71 and the third steel shaft 72 of the first rolling unit 70 may be conveying rollers for conveying the die-cut protective film 200, and of course, the second glue shaft 71 and the third steel shaft 72 are also used for pressing the die-cut protective film 200.

In this embodiment, the driving member may be a motor, and the motor is engaged with the second steel shaft 65 to drive the second steel shaft 65 to rotate, but in other embodiments, the motor may be connected with the second steel shaft 65 through a belt.

In this embodiment, the first cutting die shaft 64 is a knife roll having a knife edge.

In an embodiment, the first rolling unit 70 further includes a rolling driving member (not shown) for driving the second rubber shaft 71 to rotate, and the second rubber shaft 71 drives the third steel shaft 72 to rotate.

In an embodiment, the die cutting device 100 further includes a protective film take-up roll 50, and the protective film take-up roll 50 is configured to recycle the protective film 200 which passes through between the second glue shaft 71 and the third steel shaft 72 and is die-cut by the first die-cutting unit 60. In other embodiments, the protective film 200 die-cut by the first die-cutting unit 60 may also be directly passed through a cutting device to be divided into individual protective films 200 and placed in a collection box.

In one embodiment, the die cutting device 100 further includes a guide shaft 80, the guide shaft 80 is located at a side of the first die cutting unit 60 away from the first winding unit 70; the protective film 200 passes between the first glue shaft 61 and the first steel shaft 62 and then is guided by the guide shaft 80 to pass between the second steel shaft 65 and the first cutting die shaft 64 for die cutting.

In this embodiment, the guide shaft 80 is a rotatable rotation shaft, and the protection film 200 can drive the rotation shaft to rotate when moving.

In this embodiment, the number of the guide shafts 80 is two, and the two guide shafts are located on the side of the first die-cutting unit 60 away from the first rolling unit 70, it can be understood that the number and the position of the guide shafts 80 can be adjusted according to actual scenes.

Further, the lower surface of the guide shaft 80 is approximately in the same plane as the lower surface of the second steel shaft 65 to guide the protective film passing through the first rubber shaft 61 and the first steel shaft 62 to pass between the second steel shaft 65 and the first cutter shaft 64.

In this embodiment, the protective film unwinding roller 10, the mucosa unwinding roller 20, the waste winding roller 30, the mucosa winding roller 40, and the protective film winding roller 50 are all inflatable shafts, which are also called inflatable shafts, and the inflatable shafts are shafts whose surfaces can be protruded after being inflated by high pressure, so that the films such as the protective film or the mucosa wound on the inflatable shafts maintain tension.

In some embodiments, referring to fig. 3, the die cutting device 100 further includes a supporting frame 84 and a plurality of supporting members 83, the supporting frame 84 is provided with an adjusting groove 841, the plurality of supporting members 83 are disposed in the adjusting groove 841 of the supporting frame 84, each supporting member 83 has a bearing groove 831, and two ends of the first glue shaft 61, the first steel shaft 62, the groove shaft 63, the first cutting die shaft 64, and the second steel shaft 65 are sequentially disposed in the corresponding bearing grooves 831 from top to bottom. Further, the die cutting device 100 further comprises an adjusting component 85, the adjusting component 85 comprises a fixing member 851 and an adjusting member 852, the fixing member 851 is fixedly arranged on the supporting frame 84 and covers the adjusting groove 841, and the adjusting member 852 movably penetrates through the fixing member 851 and abuts against the supporting member 83 corresponding to the first glue shaft 61 in the adjusting groove 841. In this way, the acting force between the adjusting piece 852 and the supporting piece 83 corresponding to the first rubber shaft 61 is controlled to adjust the spacing and acting force between the first rubber shaft 61, the first steel shaft 62, the groove shaft 63, the first cutting die shaft 64 and the second steel shaft 65, so as to adjust the die cutting depth of the first cutting die shaft 64.

In this embodiment, the fixing member 851 is provided with a threaded hole, the adjusting member 852 is cylindrical and has an external thread adapted to the threaded hole, and the adjusting member 852 can be rotated to adjust the abutting force between the adjusting member 852 and the supporting member 83 corresponding to the first rubber shaft 61.

In some embodiments, the die cutting apparatus 100 further comprises a drive shaft 86, the drive shaft 86 engaging the second steel shaft 65, the driving member being configured to drive the drive shaft 86 to rotate.

In this embodiment, the supporting frame 84 includes a base 843 and two vertical plates 845, the two vertical plates 845 are connected with the base 843 and are arranged at intervals, and each vertical plate 845 is provided with the adjusting groove 841.

Referring to fig. 4, in some embodiments, the die-cutting device 100 further includes a third die-cutting station 3, the first die-cutting station 1, the second die-cutting station 2, and the third die-cutting station 3 are sequentially disposed from front to back along the same horizontal direction, the die-cutting device 100 further includes a second die-cutting unit 90, a substrate film unwinding roller 91, and a substrate film winding roller 92, the second die-cutting unit 90 is located at the third die-cutting station 3, the substrate film unwinding roller 91 is used for providing a substrate film for the second die-cutting unit 90, and the substrate film winding roller 92 is used for recycling the substrate film die-cut by the second die-cutting unit 90.

In this embodiment, the substrate film may be a BOPP (Biaxially Oriented Polypropylene) film, which has high tensile strength, impact strength, rigidity, toughness, and good transparency. The substrate film unwinding roller 91 is located below the protective film subjected to the first die cutting, and is used for backing up and conveying the protective film 200 subjected to the die cutting by the first die cutting unit 60.

The implementation process of the embodiment:

the first die cutting unit 60 provides the first rolling unit 70 with the protective film after the first die cutting, the substrate film unwinding roller 91 provides the first rolling unit 70 with the substrate film which is positioned below the protective film after the first die cutting and serves as the substrate film of the protective film after the first die cutting, the first rolling unit 70 presses the substrate film and the protective film after the first die cutting to form a pressed film, and the pressed film is transmitted to the second die cutting unit 90;

the second die cutting unit 90 performs die cutting on the release film layer 210 of the protective film 200 after the first die cutting on the laminated film to obtain a protective film after the second die cutting;

the substrate film take-up roll 92 recovers the substrate film die-cut by the second die-cutting unit 90 to peel off the protective film after the second die-cut.

Referring to fig. 5, which is a schematic diagram of a secondary die-cut protective film product film provided in the present application, the secondary die-cut protective film peeled off from the substrate film winding roll 92 is a plurality of sheet-shaped finished film products, and each finished film product has a release film layer 210 die-cut by the second die-cutting unit 90 and a protective film layer 220 die-cut by the first die-cutting unit 60.

Wherein, retrieve the utilization ratio of substrate film in order to increase the raw materials through substrate film wind-up roll 92, reduce cost.

In one embodiment, the second die cutting unit 90 comprises a second die shaft 901 and a fourth steel shaft 902 which are arranged from top to bottom, and the second die shaft 901 is engaged with the fourth steel shaft 902.

Thus, when the laminated film formed by the substrate film and the protective film after the first die cutting is transferred to the second die cutting unit 90, the second die shaft 901 cooperates with the fourth steel shaft 902 to die cut the protective film on the substrate film.

Further, the second die-cutting unit 90 further includes a second die-cutting driving member (not shown) for driving the fourth steel shaft 902 to rotate, and the fourth steel shaft 902 drives the second die-cutting shaft 901 to rotate.

In some embodiments, referring to fig. 6, the die-cutting device 100 further has a fourth die-cutting station 4 and a fifth die-cutting station 5, the fourth die-cutting station 4 is provided with a second rolling unit 93, and the fifth die-cutting station 5 is provided with a third die-cutting unit 94; the second rolling unit 93 is used for laminating the protective film and the covering film after the first die cutting, and the third die cutting unit 94 is used for die cutting the covering film.

The first die cutting station 1, the fourth die cutting station 4, the fifth die cutting station 5, the second die cutting station 2 and the third die cutting station 3 are sequentially arranged from front to back along the same horizontal direction;

the die cutting device 100 further has a cover film unwinding roller 95 and a cover film winding roller 96, the cover film unwinding roller 95 is used for providing a cover film for the second winding unit 93, and the cover film winding roller 96 is used for recycling the cover film die-cut by the third die cutting unit 94.

Wherein, the covering film covers on the protective film.

In this embodiment, the cover film unwinding roller 95 is located above the second winding unit 93, and the cover film winding roller 96 is located above the third die-cutting unit 94.

Referring to fig. 6 again, the die cutting device 100 further includes a release film unwinding roller 97 for providing a release film layer, and the protection film unwinding roller 10 for providing a protection film layer, wherein the protection film layer and the release film layer simultaneously pass through the first glue shaft 61 and the first steel shaft 62, so that the protection film layer 220 is compounded on the release film layer 210 to form a protection film.

Example process of the embodiment illustrated in fig. 6:

the first die cutting unit 60 provides the protective film (including the adhesive film and the protective film attached to the adhesive film) after the first die cutting to the second rolling unit 93; the cover film unwinding roller 95 provides a cover film for the second winding unit 93, the cover film covers the protective film subjected to the first die cutting, a first laminated film is formed by laminating through the second winding unit 93, and then the second winding unit 93 transfers the first laminated film to the third die cutting unit 94;

the third die cutting unit 94 performs die cutting on the covering film of the first laminated film, the mucosa winding roller 40 recovers the mucosa penetrating through the third die cutting unit 94, the covering film winding roller 96 recovers the covering film penetrating through the third die cutting unit 94, the third die cutting unit 94 transmits the protective film subjected to secondary die cutting to the first winding unit 70, wherein the protective film subjected to secondary die cutting by the third die cutting unit 94 sequentially comprises the covering film, the protective film layer and the release film layer from top to bottom;

the substrate film unwinding roller 91 supplies a substrate film to the first winding unit 70, the substrate film is positioned below the protective film subjected to the second die cutting and serves as a substrate of the protective film subjected to the second die cutting, the first winding unit 70 presses the substrate film and the protective film subjected to the second die cutting to form a second pressed film, and the second pressed film is transmitted to the second die cutting unit 90;

the second die cutting unit 90 performs die cutting on the release film layer of the protective film subjected to the secondary die cutting on the laminated film to obtain a third protective film subjected to the die cutting;

the substrate film take-up roll 92 recovers the substrate film die-cut by the second die-cutting unit 90 to peel off the protective film after the third die-cut;

referring to fig. 7, which is a schematic view of the protective film 200 after three times of die cutting provided in the present application, the protective film includes a cover film 230, a protective film layer 220 and a release film layer 210 from top to bottom in sequence.

Referring to fig. 6 again, in some embodiments, the third die-cutting unit 94 includes a third die shaft 941 and a fifth steel shaft 942 sequentially arranged from top to bottom, and the third die shaft 941 is engaged with the fifth steel shaft 942. In this embodiment, when the first pressing film is transferred between the third cutting die shaft 941 and the fifth steel shaft 942, the third cutting die shaft 941 and the fifth steel shaft 942 can be driven, and the third cutting die shaft 941 performs die cutting on the first pressing film.

Further, the third die-cutting unit 94 further includes a third die-cutting driving member (not shown) for driving the fifth steel shaft 942 to rotate, and the fifth steel shaft 942 drives the third die shaft 941 to rotate.

In some embodiments, the second winding unit 93 includes a third glue shaft 931 and a sixth steel shaft 932 arranged in sequence from top to bottom, and the third glue shaft 931 is engaged with the sixth steel shaft 932.

The application provides a cutting device 100 is through the structure of designing each cross cutting unit to reduce the cross cutting station, reduce cutting device 100's occupation space. And can realize automatic cross cutting protection film to promote the cross cutting output, improve work efficiency, and simple structure easily realizes.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A die cutting device is characterized by comprising a protective film unwinding roller, a mucosa unwinding roller, a waste winding roller, a mucosa winding roller, a first die cutting unit and a first winding unit, wherein the die cutting device is provided with a first die cutting station and a second die cutting station, the first die cutting station and the second die cutting station are sequentially arranged from front to back along the same horizontal direction, the first die cutting unit is positioned at the first die cutting station, the first winding unit is positioned at the second die cutting station, the first die cutting unit comprises a driving piece, a first rubber shaft, a first steel shaft, a groove shaft, a first cutter shaft and a second steel shaft, the driving piece is used for driving the second steel shaft to rotate, the second steel shaft is meshed with the first cutter shaft, the groove shaft is meshed with the first die shaft, the first steel shaft is meshed with the groove shaft, the first rubber shaft is meshed with the first steel shaft, the first winding unit comprises a second rubber shaft and a third steel shaft, the second cutter shaft and the third steel shaft are sequentially arranged from top to bottom;

2. The die cutting device of claim 1, wherein the die cutting device further comprises a guide shaft located at a side of the first die cutting unit away from the first winding unit; the protective film penetrates through the space between the first rubber shaft and the first steel shaft and then is guided by the guide shaft to penetrate through the space between the second steel shaft and the first cutter die shaft for die cutting.

3. The die cutting apparatus of claim 1, wherein said die cutting apparatus further comprises a protective film take-up roll for recycling the protective film passing between said second glue bobbin and said third steel bobbin.

4. The die cutting device according to claim 1, wherein the die cutting device further comprises a supporting frame and a plurality of supporting members, the supporting frame is provided with an adjusting groove, the supporting members are arranged in the adjusting groove of the supporting frame, each supporting member is provided with a bearing groove, two ends of the first rubber shaft, the first steel shaft, the groove shaft, the first cutting die shaft and the second steel shaft are sequentially arranged in the bearing grooves from top to bottom, the die cutting device further comprises an adjusting assembly, the adjusting assembly comprises a fixing member and an adjusting member, the fixing member is fixedly arranged on the supporting frame, and the adjusting member movably penetrates through the fixing member and abuts against the supporting member corresponding to the first rubber shaft.

5. The die-cutting device according to claim 1, wherein the die-cutting device further has a third die-cutting station, the first die-cutting station, the second die-cutting station and the third die-cutting station are sequentially disposed from front to back in the same horizontal direction, the die-cutting device further comprises a second die-cutting unit, a substrate film unwinding roller and a substrate film winding roller, the second die-cutting unit is located at the third die-cutting station, the substrate film unwinding roller is used for supplying a substrate film to the second die-cutting unit, and the substrate film winding roller is used for recycling the substrate film die-cut by the second die-cutting unit.

6. The die cutting device according to claim 5, wherein said second die cutting unit comprises a second die shaft and a fourth steel shaft arranged in sequence from top to bottom, said second die shaft engaging with said fourth steel shaft.

7. The die-cutting device according to claim 5 or 6, wherein the die-cutting device further has a fourth die-cutting station provided with a second take-up unit and a fifth die-cutting station provided with a third die-cutting unit;

8. The die cutting device according to claim 7, wherein said third die cutting unit comprises a third die shaft and a fifth steel shaft arranged in sequence from top to bottom, said third die shaft engaging with said fifth steel shaft.

9. The die cutting device according to claim 7, wherein the second winding unit comprises a third glue shaft and a sixth steel shaft which are arranged from top to bottom in sequence, and the third glue shaft is engaged with the sixth steel shaft.

10. The die cutting device of claim 1 further comprising a drive shaft, said drive shaft engaging said second steel shaft, said drive member for driving said drive shaft in rotation.