Metal foil slitting equipment

Abstract

The utility model discloses metal foil slitting equipment which comprises a machine body, a first unwinding roller, a second unwinding roller, a winding roller, a first roller cutting mechanism, a first attaching mechanism, a second roller cutting mechanism and an equal-distance separating mechanism, wherein the first unwinding roller, the second unwinding roller, the winding roller, the first roller cutting mechanism, the first attaching mechanism, the second roller cutting mechanism and the equal-distance separating mechanism are arranged on the machine body. The first unwinding roller is used for unwinding a metal foil; the first roller cutting mechanism is used for carrying out roller cutting on the metal foil conveyed by the unwinding shaft so as to cut the metal foil into a plurality of metal strips; the equidistant separation mechanism is used for carrying out equidistant separation on the plurality of metal strips treated by the first roller cutting mechanism; and the second unwinding roller is used for unwinding a bottom film. According to the metal strip separating device, the metal strips are separated at equal intervals through the equal-distance separating mechanism, and the metal strips can be separated at equal intervals after the metal foil is cut into the metal strips, so that the generation of metal foil waste is reduced, the utilization rate of the metal foil is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board production, in particular to a metal foil stripping device. Background Art

[0002] Flexible printed circuit (FPC) is a highly reliable and flexible printed circuit made of polyimide or polyester film. It can be bent, folded, and wound freely, and can be moved and extended in three dimensions. It is widely used in lighting products such as LED light strips, tubes, and panel lights. During the production of flexible circuit boards, the metal foil needs to be striped.

[0003] Currently, the metal foil is divided into strips by a die-cutting mechanism, and the metal strips after die-cutting are evenly spaced. However, a large amount of metal foil waste is generated during the stripping process, resulting in high production costs for flexible circuit boards. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of the present invention is to propose a metal foil slitting device to solve the problem that the current die-cutting mechanism is used to slit the metal foil, which generates a lot of metal foil waste and thus leads to high production costs of flexible circuit boards.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A metal foil stripping device comprises a machine body, and a first unwinding roller, a second unwinding roller, a winding roller, a first roller cutting mechanism, a first laminating mechanism, a second roller cutting mechanism, and an equidistant separation mechanism arranged on the machine body;

[0007] The first unwinding roller is used for unwinding the metal foil;

[0008] The first roller cutting mechanism is used for roller cutting the metal foil conveyed by the first unwinding roller to cut the metal foil into a plurality of metal strips;

[0009] The equidistant separation mechanism is used to equidistantly separate the plurality of metal strips processed by the first roller cutting mechanism;

[0010] The second unwinding roller is used for unwinding the base film;

[0011] The first laminating mechanism is used to laminate the plurality of metal strips processed by the equidistant separation mechanism onto the base film conveyed by the second unwinding roller;

[0012] The second roller cutting mechanism is used to roller cut both sides of the base film processed by the first laminating mechanism to adjust the width of the base film;

[0013] The winding roller is used to wind up the base film processed by the second roller cutting mechanism.

[0014] Preferably, the metal foil is copper foil.

[0015] Preferably, the equidistant separation mechanism comprises a pressing roller, a stepped plate and a guide roller, and the pressing roller, the stepped plate and the guide roller are sequentially arranged between the first roller cutting mechanism and the first laminating mechanism along the conveying direction of the metal foil;

[0016] The pressing roller and the guide roller are located above a number of metal strips, and the step plate is located below the number of metal strips. An arc-shaped protrusion is provided on the upper surface of the step plate, and a number of guide holes arranged at equal intervals are opened on the upper surface of the arc-shaped protrusion. A number of guide channels arranged at equal intervals are opened on the outer side surface of the guide roller. A number of metal strips are wound around the bottom end of the pressing roller and pass through the corresponding guide holes and guide channels in sequence.

[0017] Preferably, the metal foil is aluminum copper foil.

[0018] Preferably, the equidistant separation mechanism comprises a pressing roller, a stepped plate and a guide roller, and the pressing roller, the stepped plate and the guide roller are sequentially arranged between the first roller cutting mechanism and the first laminating mechanism along the conveying direction of the metal foil;

[0019] The pressure roller and the guide roller are located above a number of metal strips, the step plate is located below a number of metal strips, an arc-shaped protrusion is provided on the upper surface of the step plate, and a number of guide channels arranged at equal intervals are opened on the outer side surface of the guide roller. A number of metal strips are sequentially wound around the bottom end of the pressure roller and the top end of the arc-shaped protrusion of the step plate, and pass through the corresponding guide channels.

[0020] Preferably, the first roller cutting mechanism includes a knife roller and a first cushion roller that cooperate with each other, and the knife roller and the first cushion roller are arranged in sequence from top to bottom. The structure of the second roller cutting mechanism is consistent with that of the first roller cutting mechanism.

[0021] Preferably, the base film is a PET film.

[0022] Preferably, the first laminating mechanism includes a first hot glue roller and a hot pad roller that cooperate with each other, and the first hot glue roller and the hot pad roller are arranged in sequence from top to bottom.

[0023] Preferably, it also includes a second laminating mechanism, which is located between the second roller cutting mechanism and the winding roller. The second laminating mechanism includes a second hot glue roller and a second pad roller that cooperate with each other. The second hot glue roller and the second pad roller are arranged in sequence from top to bottom.

[0024] Preferably, it further comprises two auxiliary material shafts, two first waste material shafts and two second waste material shafts;

[0025] The two auxiliary material shafts are used to transport the cushion knife film, and the two rolls of the cushion knife film are respectively recycled by the corresponding first waste material shaft after passing through the surface of the first cushion roller of the first roller cutting mechanism and the second roller cutting mechanism;

[0026] The two second waste shafts are used to recycle the burr waste removed by the first roller cutting mechanism and the second roller cutting mechanism respectively.

[0027] The technical solution provided by the utility model may have the following beneficial effects:

[0028] By using an equidistant separation mechanism to separate a plurality of metal strips at equal distances, the metal foil can be cut into a plurality of metal strips and then separated at equal distances, thereby reducing the generation of metal foil waste, improving the utilization rate of the metal foil, and thus reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 It is a structural schematic diagram of the equidistant separation mechanism of the utility model;

[0031] Figure 3 This is a structural diagram of an embodiment of a step plate of the present invention;

[0032] Figure 4 This is a schematic structural diagram of another embodiment of the step plate of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the guide roller of the utility model.

[0034] Wherein: 1. Machine body; 2. First unwinding roller; 3. Second unwinding roller; 4. Rewinding roller; 5. First roller cutting mechanism; 51. Knife roller; 52. First pad roller; 6. First laminating mechanism; 61. First hot glue roller; 62. Hot pad roller; 7. Second roller cutting mechanism; 8. Equidistant separation mechanism; 81. Pressing roller; 82. Step plate; 821. Arc-shaped protrusion; 822. Guide hole; 83. Guide roller; 831. Guide channel; 9. Second laminating mechanism; 91. Second hot glue roller; 92. Second pad roller; 10. Auxiliary material shaft; 11. First waste material shaft; 12. Second waste material shaft. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features, without distinction of order or importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] Below is the attached figure Figures 1 to 5 The technical solution of the utility model is further illustrated through specific implementation methods.

[0039] like Figure 1-5 As shown, a metal foil stripping device includes a body 1, and a first unwinding roller 2, a second unwinding roller 3, a winding roller 4, a first roller cutting mechanism 5, a first laminating mechanism 6, a second roller cutting mechanism 7, and an equidistant separation mechanism 8 arranged on the body 1;

[0040] The first unwinding roller 2 is used to unwind the metal foil;

[0041] The first roller cutting mechanism 5 is used for roller cutting the metal foil conveyed by the first unwinding roller 2 to cut the metal foil into a plurality of metal strips;

[0042] The equidistant separation mechanism 8 is used to equidistantly separate the plurality of metal strips processed by the first roller cutting mechanism 5;

[0043] The second unwinding roller 3 is used for unwinding the base film;

[0044] The first laminating mechanism 6 is used to laminate the plurality of metal strips processed by the equidistant separation mechanism 8 onto the base film conveyed by the second unwinding roller 3;

[0045] The second roller cutting mechanism 7 is used to roller cut both sides of the base film processed by the first laminating mechanism 6 to adjust the width of the base film;

[0046] The winding roller 4 is used to wind up the base film processed by the second roller cutting mechanism 7 .

[0047] The equidistant separation mechanism 8 is used to equidistantly separate the plurality of metal strips. After the metal foil is cut into the plurality of metal strips, the equidistant separation can be performed to reduce the generation of metal foil waste, improve the utilization rate of the metal foil, and thus reduce production costs.

[0048] Specifically, the metal strip is divided into several metal strips by the first roller cutting mechanism 5, and then the several metal strips are equidistantly separated by the equidistant separation mechanism 8. The several metal strips after equidistant separation are then laminated on the base film by the first laminating mechanism 6. The width of the base film is then adjusted by roller cutting by the second roller cutting mechanism 7, and finally the base film is rolled up.

[0049] like Figure 1 、 2 As shown in , 3 and 5, the metal foil is copper foil.

[0050] like Figure 1 、 2 , 3 and 5, the equidistant separation mechanism 8 includes a pressing roller 81, a stepped plate 82 and a guide roller 83, and the pressing roller 81, the stepped plate 82 and the guide roller 83 are sequentially arranged between the first roller cutting mechanism 5 and the first laminating mechanism 6 along the conveying direction of the metal foil;

[0051] The pressure roller 81 and the guide roller 83 are located above a number of metal strips, and the step plate 82 is located below a number of metal strips. An arc-shaped protrusion 821 is provided on the upper surface of the step plate 82, and a number of guide holes 822 are provided on the upper surface of the arc-shaped protrusion 821 at equal intervals. The outer side surface of the guide roller 83 is provided with a number of guide channels 831 at equal intervals. A number of metal strips are wound around the bottom end of the pressure roller 81 and pass through the corresponding guide holes 822 and the guide channels 831 in sequence.

[0052] Specifically, when the metal foil is copper foil, the plurality of metal strips are tensioned and conveyed by cooperating with the pressure roller 81 and the step plate 82, and the plurality of metal strips are respectively passed through the corresponding guide holes 822 to perform a preliminary adjustment on the spacing between the plurality of metal strips so that the plurality of metal strips can enter the corresponding guide channels 831 more smoothly, and then the spacing between the plurality of metal strips is finally adjusted through the corresponding guide channels 831 to cut the metal foil into a plurality of equally spaced metal strips.

[0053] like Figure 1 、 2As shown in , 4 and 5, the metal foil is aluminum copper foil.

[0054] like Figure 1 、 2 , 4 and 5, the equidistant separation mechanism 8 includes a pressing roller 81, a stepped plate 82 and a guide roller 83, and the pressing roller 81, the stepped plate 82 and the guide roller 83 are sequentially arranged between the first roller cutting mechanism 5 and the first laminating mechanism 6 along the conveying direction of the metal foil;

[0055] The pressure roller 81 and the guide roller 83 are located above the several metal bars, and the step plate 82 is located below the several metal bars. The upper surface of the step plate 82 is provided with an arc-shaped protrusion 821, and the outer side surface of the guide roller 83 is provided with a plurality of guide channels 831 arranged at equal intervals. Several metal bars are sequentially wound around the bottom end of the pressure roller 81 and the top end of the arc-shaped protrusion 821 of the step plate 82, and pass through the corresponding guide channels 831.

[0056] Specifically, when the metal foil is aluminum-copper foil, the aluminum surface of the metal foil contacts the step plate 82. When a step plate 82 with a guide hole 822 is used, the guide hole 822 of the step plate 82 will scratch the aluminum surface of the metal foil. Therefore, in this embodiment, the upper surface of the arc-shaped protrusion 821 is no longer provided with a guide hole 822 to ensure that the upper surface of the arc-shaped protrusion 821 is smooth. The several metal strips after cutting are tensioned and conveyed by the cooperation of the pressure roller 81 and the step plate 82, and the spacing between the several metal strips is finally adjusted through the corresponding guide channel 831.

[0057] It is worth noting that the distance between the pressure roller 81 and the guide roller 83 is large, and the distance between the pressure roller 81 and the step plate 82 is larger than the distance between the guide roller 83 and the step plate 82, so as to better tension and convey the multiple metal strips, and there is enough distance so that the multiple metal strips are gradually separated and then enter the guide channel 831, reducing the contact between the metal strips and the inner wall of the guide channel 831, thereby reducing the wear of the metal strips.

[0058] It is also worth mentioning that, since the length of the copper strip between the knife roller 51 and the step plate 82 decreases from the outermost side to the middle side after the copper strip is cut, in order to ensure that the length of each copper strip from the knife roller 51 to the guide roller 83 is X, it is necessary to raise the height of the contact position between the copper strip and the step plate 82 accordingly, and then measure the length L1 of the copper strip from the knife roller 51 to the step plate 82, and the length L2 of the copper strip from the step plate 82 to the guide roller 83. The bottom end of the knife roller 51 is aligned with the outermost copper strip and the step plate 82. The height difference at the contact position of the step plate 82 is H1, and the height difference at the contact position between the bottom end of the guide roller 83 and the outermost copper bar and the step plate 82 is H2. Then the height difference at the contact position between the bottom end of the knife roller 51 and the remaining copper bars and the step plate 82 is H1+H3, and the height difference at the contact position between the bottom end of the guide roller 83 and the remaining copper bars and the step plate 82 is H2+H3. H3 is the height difference between the remaining position of the step plate 82 and the contact position between the outermost copper bar and the step plate 82. Then according to the formula X 2 =L1 2 +(H1+H3) 2 +L2 2 +(H2+H3) 2 , where H1 and H2 are two fixed values, X is a certain value, L1 and L2 are obtained by manually measuring the corresponding copper bars. Therefore, it is only necessary to measure L1 and L2 of the corresponding copper bars to calculate the H3 corresponding to the corresponding copper bars, and then the step plate 82 can be manufactured based on H3.

[0059] like Figure 2 As shown, the first roller cutting mechanism 5 includes a knife roller 51 and a first cushion roller 52 that cooperate with each other. The knife roller 51 and the first cushion roller 52 are arranged in sequence from top to bottom. The second roller cutting mechanism 7 has the same structure as the first roller cutting mechanism 5.

[0060] like Figure 2 As shown, the base film is a PET film.

[0061] like Figure 2 As shown, the first laminating mechanism 6 includes a first hot glue roller 61 and a hot pad roller 62 that cooperate with each other, and the first hot glue roller 61 and the hot pad roller 62 are arranged in sequence from top to bottom.

[0062] Specifically, the PET film is heated by simultaneously heating the first hot adhesive roller 61 and the hot pad roller 62 from top to bottom, thereby preliminarily laminating the plurality of metal strips to the top surface of the PET film.

[0063] like Figure 2 As shown, it also includes a second laminating mechanism 9, which is located between the second roller cutting mechanism 7 and the winding roller 4. The second laminating mechanism 9 includes a second hot glue roller 91 and a second pad roller 92 that cooperate with each other. The second hot glue roller 91 and the second pad roller 92 are arranged in sequence from top to bottom.

[0064] Specifically, after the initial bonding by the first bonding mechanism 6, further bonding is performed by heating by the second hot rubber roller 91. The secondary bonding method can make the metal strips and the PET film completely close to each other, ensuring the bonding effect.

[0065] like Figure 1 As shown, it also includes two auxiliary material shafts 10, two first waste material shafts 11 and two second waste material shafts 12;

[0066] The two auxiliary material shafts 10 are used to transport the cushion knife film. The two rolls of the cushion knife film pass through the surfaces of the first cushion rollers 52 of the first roller cutting mechanism 5 and the second roller cutting mechanism 7 respectively and are then recovered by the corresponding first waste material shaft 11.

[0067] The two second waste shafts 12 are used to recycle the burr waste removed by the first roller cutting mechanism 5 and the second roller cutting mechanism 7 respectively.

[0068] Specifically, the knife film can prevent the knife rollers 51 of the first roller cutting mechanism 5 and the second roller cutting mechanism 7 from directly contacting and colliding with the first pad roller 52, and the flash waste removed during roller cutting can be recovered through the two second waste shafts 12.

[0069] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A metal foil stripping device, characterized in that: The invention comprises a machine body (1), and a first unwinding roller (2), a second unwinding roller (3), a winding roller (4), a first roller cutting mechanism (5), a first laminating mechanism (6), a second roller cutting mechanism (7), and an equidistant separation mechanism (8) arranged on the machine body (1); The first unwinding roller (2) is used for unwinding the metal foil; The first roller cutting mechanism (5) is used for roller cutting the metal foil conveyed by the first unwinding roller (2) to cut the metal foil into a plurality of metal strips; The equidistant separation mechanism (8) is used to equidistantly separate the plurality of metal strips processed by the first roller cutting mechanism (5); The second unwinding roller (3) is used for unwinding the base film; The first laminating mechanism (6) is used to laminate the plurality of metal strips processed by the equidistant separation mechanism (8) onto the base film transported by the second unwinding roller (3); The second roller cutting mechanism (7) is used to roller cut both sides of the base film processed by the first laminating mechanism (6) to adjust the width of the base film; The winding roller (4) is used to wind up the base film processed by the second roller cutting mechanism (7).

2. The metal foil stripping device according to claim 1, characterized in that: The metal foil is copper foil.

3. The metal foil stripping device according to claim 2, characterized in that: The equidistant separation mechanism (8) comprises a pressing roller (81), a stepped plate (82) and a guide roller (83), wherein the pressing roller (81), the stepped plate (82) and the guide roller (83) are sequentially arranged between the first roller cutting mechanism (5) and the first laminating mechanism (6) along the conveying direction of the metal foil; The pressure roller (81) and the guide roller (83) are located above a plurality of metal strips, and the step plate (82) is located below the plurality of metal strips. An arc-shaped protrusion (821) is provided on the upper surface of the step plate (82), and a plurality of guide holes (822) arranged at equal intervals are provided on the upper surface of the arc-shaped protrusion (821). The outer side surface of the guide roller (83) is provided with a plurality of guide channels (831) arranged at equal intervals. A plurality of metal strips are wound around the bottom end of the pressure roller (81) and sequentially pass through the corresponding guide holes (822) and the guide channels (831).

4. The metal foil stripping device according to claim 1, characterized in that: The metal foil is aluminum copper foil.

5. The metal foil stripping device according to claim 4, characterized in that: The equidistant separation mechanism (8) comprises a pressing roller (81), a stepped plate (82) and a guide roller (83), wherein the pressing roller (81), the stepped plate (82) and the guide roller (83) are sequentially arranged between the first roller cutting mechanism (5) and the first laminating mechanism (6) along the conveying direction of the metal foil; The pressure roller (81) and the guide roller (83) are located above a plurality of metal strips, and the step plate (82) is located below the plurality of metal strips. An arc-shaped protrusion (821) is provided on the upper surface of the step plate (82), and a plurality of guide channels (831) arranged at equal intervals are opened on the outer side surface of the guide roller (83). A plurality of metal strips are sequentially wound around the bottom end of the pressure roller (81) and the top end of the arc-shaped protrusion (821) of the step plate (82), and pass through the corresponding guide channels (831).

6. The metal foil stripping device according to claim 1, characterized in that: The first roller cutting mechanism (5) comprises a knife roller (51) and a first pad roller (52) that cooperate with each other, wherein the knife roller (51) and the first pad roller (52) are arranged in sequence from top to bottom, and the second roller cutting mechanism (7) has the same structure as the first roller cutting mechanism (5).

7. The metal foil stripping device according to claim 1, characterized in that: The base film is a PET film.

8. The metal foil stripping device according to claim 1, characterized in that: The first laminating mechanism (6) comprises a first hot glue roller (61) and a hot pad roller (62) that cooperate with each other, and the first hot glue roller (61) and the hot pad roller (62) are arranged in sequence from top to bottom.

9. The metal foil stripping device according to claim 1, characterized in that: The invention also includes a second laminating mechanism (9), which is located between the second roller cutting mechanism (7) and the winding roller (4), and the second laminating mechanism (9) includes a second hot glue roller (91) and a second pad roller (92) that cooperate with each other, and the second hot glue roller (91) and the second pad roller (92) are arranged in sequence from top to bottom.

10. The metal foil stripping device according to claim 1, characterized in that: It also includes two auxiliary material shafts (10), two first waste material shafts (11) and two second waste material shafts (12); The two auxiliary material shafts (10) are used for conveying the cushion knife film, and the two rolls of the cushion knife film are respectively recycled by the corresponding first waste material shaft (11) after passing through the surface of the first cushion roller (52) of the first roller cutting mechanism (5) and the second roller cutting mechanism (7); The two second waste shafts (12) are used to recycle the burr waste removed by the first roller cutting mechanism (5) and the second roller cutting mechanism (7), respectively.

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