Flexible circuit board production device convenient for replacing printing roller

Abstract

The utility model discloses a flexible circuit board production device convenient for replacing a printing roller, which comprises a machine table, the first unwinding unit, the first attaching unit, the first curing unit, the silk screen roller printing unit, the second curing unit, the etching unit, the first film covering unit, the second unwinding unit, the second film covering unit, the third film covering unit, the second attaching unit, the circular cutter die cutting unit and the winding unit are installed on the machine table. The first unwinding unit is used for unwinding a first metal foil and a first adhesive film. When the arc-shaped printing plate of the circular screen printing plate roller of the screen roller printing unit needs to be replaced due to abrasion, the damaged arc-shaped printing plate can be replaced by separating the damaged arc-shaped printing plate from the circular screen printing plate roller only by separating the two locking assemblies from the arc-shaped printing plate, the circular screen printing plate roller does not need to be replaced, operation is fast, and cost is low. And the replacement time is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board production equipment, in particular to a flexible circuit board production device which is convenient for replacing a plate roller. Background Art

[0002] Flexible Printed Circuit (FPC) is a highly reliable and flexible printed circuit made of polyimide or polyester film. It can be freely bent, folded, and wound, and can be moved and stretched in three-dimensional space. It is widely used in lighting products such as LED light strips, light tubes, and panel lights.

[0003] Currently, in the production process of flexible circuit boards, a screen roller is required to print ink to protect the parts that do not need to be etched during etching. However, the screen roller needs to be printed continuously, so it is prone to wear and tear and needs to be replaced regularly. When replacing the screen roller, the screen roller needs to be removed as a whole, which is troublesome, time-consuming and labor-intensive to replace. Utility Model Content

[0004] In response to the above-mentioned defects, the purpose of the present invention is to propose a flexible circuit board production device that is easy to replace the screen roller, so as to solve the problem that in the existing flexible circuit board production process, when replacing the screen roller, the screen roller needs to be removed as a whole, which makes replacement troublesome, time-consuming and labor-intensive.

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

[0006] A flexible circuit board production device that facilitates plate roller replacement includes a machine platform, and a first unwinding unit, a first laminating unit, a first curing unit, a screen roller printing unit, a second curing unit, an etching unit, a first laminating unit, a second unwinding unit, a second laminating unit, a third laminating unit, a second laminating unit, a circular die cutting unit, and a winding unit installed on the machine platform;

[0007] The first unwinding unit is used to unwind a first metal foil and a first adhesive film; the first laminating unit is used to laminarize the first metal foil unwound by the first unwinding unit onto the upper surface of the first adhesive film; the first curing unit is used to heat the first metal foil and the first adhesive film processed by the first laminating unit so that the first metal foil is completely laminarized onto the first adhesive film; the screen printing unit is used to print etching ink on the upper surface of the first metal foil processed by the first curing unit; the second curing unit is used to heat the first metal foil processed by the screen printing unit so that the etching ink on the upper surface of the first metal foil is cured; the etching unit is used to etch the first metal foil processed by the second curing unit to form a first circuit; the first laminating unit is used to cover the first metal foil processed by the second curing unit with a first protective film having a welding window the upper surface of the first circuit processed by the etching unit; the second unwinding unit is used to unwind the second metal foil; the circular knife die-cutting unit is used to die-cut the second metal foil unwound by the second unwinding unit into strips to form a second circuit; the second laminating unit is used to cover the upper surface of the second circuit processed by the circular knife die-cutting unit with a second adhesive film; the third laminating unit is used to cover the lower surface of the second circuit processed by the second laminating unit with a second protective film with a welding window; the second laminating unit is used to laminate the second circuit processed by the second laminating unit and the first circuit processed by the first laminating unit together, so that the upper surface of the second adhesive film is tightly laminated to the lower surface of the first adhesive film to form a circuit board; the winding unit is used to wind up the circuit board processed by the second laminating unit;

[0008] The screen printing unit includes a printing bottom roller and a round screen roller arranged in sequence from the upper right to the bottom. The round screen roller includes a roller shaft, and a roller is fixedly sleeved on the outer side of the roller shaft. The outer side wall of the roller is provided with multiple arc-shaped printing plates, and locking components are respectively provided at both ends of the roller. The multiple arc-shaped printing plates are detachably mounted on the outer side wall of the roller through two locking components.

[0009] Preferably, the locking assembly includes an annular plate, which is movably sleeved on the outer side of the roller shaft, a threaded rod is threaded through one side of the end surface of the annular plate, one end of the threaded rod is rotatably connected to the end of the roller, and a guide rod is movably penetrated on the other side of the end surface of the annular plate, one end of the guide rod is fixedly connected to the end of the roller, the end surface of the annular plate has a plurality of through holes in an annular array, and mounting plates are respectively provided on both sides of the arc-shaped printing plate, and the mounting plates are engaged with the through holes.

[0010] Preferably, the outer side wall of the roller is provided with a plurality of first positioning holes, the inner arc surface of the arc-shaped printing plate is provided with a plurality of first positioning posts, and the first positioning posts are engaged with the first positioning holes.

[0011] Preferably, a second positioning column is provided on the end surface of the annular plate, and a second positioning hole is provided on the end surface of the roller, and the second positioning column is engaged and connected with the second positioning hole.

[0012] Preferably, the number of the arc-shaped printing plates is four, the four arc-shaped printing plates form a circle, and the inner arc surface of each arc-shaped printing plate is tightly fitted with the outer side wall of the roller.

[0013] Preferably, the first curing unit and the second curing unit are UV curing boxes.

[0014] Preferably, it further comprises a waste unit, which is used to recycle the metal foil waste generated during die-cutting by the circular die-cutting unit.

[0015] The technical solution provided by the utility model may have the following beneficial effects:

[0016] When the curved printing plate of the round screen roller of the screen roller printing unit needs to be replaced due to wear, it is only necessary to separate the two locking components from the curved printing plate, and then the damaged curved printing plate can be separated from the round screen roller to replace the damaged curved printing plate. There is no need to replace the round screen roller, the operation is quick, and the replacement time is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the circular screen roller of the present utility model;

[0019] Figure 3 This is a structural diagram of the utility model in which the arc-shaped printing plate and the roller are separated;

[0020] Figure 4 This is a structural diagram of the utility model in which the annular plate and the roller are separated;

[0021] Figure 5 It is a structural schematic diagram of the circuit board produced by the utility model.

[0022] Wherein: 1. Machine; 2. First unwinding unit; 3. First laminating unit; 4. First curing unit; 5. Screen roller printing unit; 51. Locking assembly; 511. Ring plate; 512. Threaded rod; 513. Guide rod; 514. Through hole; 515. Second positioning post; 52. Round screen roller; 521. Roller shaft; 522. Roller; 523. First positioning hole; 524. Second positioning hole; 53. Arc printing plate; 531. Mounting plate; 532. First positioning post; 6. Second curing unit; 7. First laminating unit; 8. Second unwinding unit; 9. Second laminating unit; 10. Third laminating unit; 11. Second laminating unit; 12. Circular die-cutting unit; 13. Winding unit; 14. First metal foil; 15. First adhesive film; 16. First protective film; 17. Second metal foil; 18. Second adhesive film; 19. Second protective film. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Below is the accompanying drawings Figures 1 to 5 The technical solution of the utility model is further illustrated through specific implementation methods.

[0027] like Figure 1-5 As shown, a flexible circuit board production device that is convenient for plate roller replacement includes a machine platform 1, and a first unwinding unit 2, a first laminating unit 3, a first curing unit 4, a screen roller printing unit 5, a second curing unit 6, an etching unit, a first laminating unit 7, a second unwinding unit 8, a second laminating unit 9, a third laminating unit 10, a second laminating unit 11, a circular die cutting unit 12, and a winding unit 13 installed on the machine platform 1;

[0028] The first unwinding unit 2 is used to unwind a first metal foil 14 and a first adhesive film 15; the first laminating unit 3 is used to laminarize the first metal foil 14 unwound by the first unwinding unit 2 onto the upper surface of the first adhesive film 15; the first curing unit 4 is used to heat the first metal foil 14 and the first adhesive film 15 processed by the first laminating unit 3 so that the first metal foil 14 is completely laminarized onto the first adhesive film 15; the screen printing unit 5 is used to print etching ink on the upper surface of the first metal foil 14 processed by the first curing unit 4; the second curing unit 6 is used to heat the first metal foil 14 processed by the screen printing unit 5 so that the etching ink on the upper surface of the first metal foil 14 is cured; the etching unit is used to etch the first metal foil 14 processed by the second curing unit 6 to form a first circuit; the first laminating unit 7 is used to laminate the first protective film 16 with a welding window covering the upper surface of the first circuit processed by the etching unit; the second unwinding unit 8 is used to unwind the second metal foil 17; the circular knife die-cutting unit 12 is used to die-cut the second metal foil 17 unwound by the second unwinding unit 8 into strips to form a second circuit; the second laminating unit 9 is used to cover the upper surface of the second circuit processed by the circular knife die-cutting unit 12 with a second adhesive film 18, the third laminating unit 10 is used to cover the lower surface of the second circuit processed by the second laminating unit 9 with a second protective film 19 with a welding window, the second laminating unit 11 is used to laminate the second circuit processed by the second laminating unit 9 and the first circuit processed by the first laminating unit 7 together, so that the upper surface of the second adhesive film 18 is tightly laminated to the lower surface of the first adhesive film 15 to form a circuit board; the winding unit 13 is used to roll up the circuit board processed by the second laminating unit 11;

[0029] The screen printing unit 5 includes a printing bottom roller and a round screen roller 52 arranged in sequence from the upper right to the bottom. The round screen roller 52 includes a roller shaft 521. A roller 522 is fixedly sleeved on the outer side of the roller shaft 521. A plurality of arc-shaped printing plates 53 are provided on the outer side wall of the roller 522. Locking assemblies 51 are respectively provided at both ends of the roller 522. The plurality of arc-shaped printing plates 53 are detachably mounted on the outer side wall of the roller 522 through two locking assemblies 51.

[0030] When manufacturing a circuit board, the first metal foil 14 and the first adhesive film 15 are unwound first, and the first metal foil 14 and the first adhesive film 15 are laminated together by the laminating unit 3. Then, the first curing unit 4 heats the first metal foil and the adhesive film to completely laminate them together. Then, the screen printing unit 5 prints etching ink to form a circuit pattern on the upper surface of the first metal foil 14. Then, the second curing unit 6 heats the etching ink to dry and solidify the etching ink on the upper surface of the first metal foil 14. Then, the etching unit etches the first metal foil 14 to form a first circuit. During the etching process, the first metal foil 14 not coated with the etching ink is etched away, and the first metal foil 14 coated with the etching ink is retained to form the first circuit. Then, the first metal foil 14 is The etching ink on the surface is cleaned off, and then the first protective film 16 with a welding window is covered on the surface of the metal foil by the first laminating unit 7. When unwinding the first metal foil 14 and the first adhesive film 15, the second unwinding unit 8 unwinds the second metal foil 17, and the second metal foil 17 is die-cut into strips by the circular die-cutting unit 12 to form a second circuit. Then, the second adhesive film 18 and the second protective film 19 with a welding window are respectively covered on the upper and lower surfaces of the first circuit by the second laminating unit 9 and the third laminating unit 10. Finally, the upper surface of the second adhesive film 18 of the second circuit is tightly bonded to the lower surface of the first adhesive film 15 of the first circuit by the second laminating unit 11 to form a circuit board, and then it is wound up by the winding unit 13. The structure of the circuit board is as shown in FIG. Figure 5 After the device has been in operation for a long time, if the curved printing plate 53 of the round screen printing roller 52 of the screen printing unit 5 needs to be replaced due to wear, the damaged curved printing plate 53 can be separated from the round screen printing roller 52 by simply separating the two locking components 51 from the curved printing plate 53. The damaged curved printing plate 53 can then be replaced without replacing the round screen printing roller 52. This makes the operation quick and reduces replacement time.

[0031] It is worth noting that the first protective film 16 and the second protective film 19 are both insulating protective films, thereby providing insulating protection for the circuit board.

[0032] like Figure 2-4 As shown, the locking assembly 51 includes an annular plate 511, which is movably sleeved on the outer side of the roller shaft 521. A threaded rod 512 is threadedly penetrated on one side of the end surface of the annular plate 511, and one end of the threaded rod 512 is rotatably connected to the end of the roller 522. A guide rod 513 is movably penetrated on the other side of the end surface of the annular plate 511, and one end of the guide rod 513 is fixedly connected to the end of the roller 522. The end surface of the annular plate 511 has a plurality of through holes 514 in an annular array. Mounting plates 531 are respectively provided on both sides of the arc-shaped printing plate 53, and the mounting plates 531 are engaged with the through holes 514.

[0033] Specifically, the threaded rod 512 is rotated to drive the annular plate 511 to move along the guide rod 513, so that the mounting plate 531 of the curved printing plate 53 is removed from the through hole 514 of the annular plate 511, and the curved printing plate 53 can be separated from the roller 522, thereby removing the curved printing plate 53 from the round screen roller 52 for replacement. The operation is simple and quick, and the replacement time is greatly reduced.

[0034] like Figure 3 As shown, a plurality of first positioning holes 523 are formed on the outer wall of the roller 522 , and a plurality of first positioning posts 532 are formed on the inner arc surface of the arc-shaped printing plate 53 . The first positioning posts 532 are engaged with the first positioning holes 523 .

[0035] Specifically, the first positioning post 532 is engaged with the first positioning hole 523 to further position the curved printing plate 53, thereby preventing the installation position of the curved printing plate 53 from being offset. The curved printing plate 53 can also be connected to the roller 522. At the same time, the two annular plates 511 fix the curved printing plate 53, thereby ensuring that the curved printing plate 53 is stably connected to the roller 522 and preventing the curved printing plate 53 from being offset during the printing process.

[0036] like Figure 3-4 As shown, a second positioning column 515 is provided on the end surface of the annular plate 511 , and a second positioning hole 524 is provided on the end surface of the roller 522 . The second positioning column 515 is engaged with the second positioning hole 524 .

[0037] Specifically, by engaging the second positioning post 515 with the second positioning hole 524, after the annular plate 511 and the curved printing plate 53 are connected together, the annular plate 511 and the roller 522 are connected together, so that the annular plate 511, the roller 522 and the curved printing plate 53 are connected together as a whole, thereby further fixing the curved printing plate 53 and preventing the curved printing plate 53 from deviating during the printing process.

[0038] like Figure 2 As shown, there are four arc-shaped printing plates 53 , which form a circle. The inner arc surface of each arc-shaped printing plate 53 is tightly fitted with the outer side wall of the roller 522 .

[0039] Specifically, the four curved printing plates 53 form a circle and fit tightly against the outer wall of the roller 522 , which can improve the stability of the curved printing plates 53 during use.

[0040] like Figure 1 As shown, the first curing unit 4 and the second curing unit 6 are UV curing boxes.

[0041] Specifically, the first curing unit 4 and the second curing unit 6 are UV curing boxes, which can quickly cure the etching ink and shorten the curing time.

[0042] like Figure 1 As shown, it also includes a waste unit, which is used to recycle the metal foil waste generated by the circular knife die-cutting unit 12 during die-cutting.

[0043] 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 undue creative effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A flexible circuit board production device that facilitates the replacement of plate rollers, characterized by: The invention comprises a machine (1), and a first unwinding unit (2), a first laminating unit (3), a first curing unit (4), a screen printing unit (5), a second curing unit (6), an etching unit, a first laminating unit (7), a second unwinding unit (8), a second laminating unit (9), a third laminating unit (10), a second laminating unit (11), a circular die cutting unit (12) and a winding unit (13) installed on the machine (1); The first unwinding unit (2) is used to unwind the first metal foil (14) and the first adhesive film (15); the first laminating unit (3) is used to laminar the first metal foil (14) unwound by the first unwinding unit (2) on the upper surface of the first adhesive film (15); the first curing unit (4) is used to heat the first metal foil (14) and the first adhesive film (15) processed by the first laminating unit (3) so that the first metal foil (14) is completely laminar to the first adhesive film (15); the screen printing unit (5) is used to print etching ink on the upper surface of the first metal foil (14) processed by the first curing unit (4); the second curing unit (6) is used to heat the first metal foil (14) processed by the screen printing unit (5) so that the etching ink on the upper surface of the first metal foil (14) is cured; the etching unit is used to etch the first metal foil (14) processed by the second curing unit (6) to form a first circuit; the first laminating unit (7) is used to laminate the first protective film (14) with a welding window. The protective film (16) covers the upper surface of the first circuit processed by the etching unit; the second unwinding unit (8) is used to unwind the second metal foil (17); the circular knife die-cutting unit (12) is used to die-cut the second metal foil (17) unwound by the second unwinding unit (8) into strips to form a second circuit; the second laminating unit (9) is used to cover the upper surface of the second circuit processed by the circular knife die-cutting unit (12) with a second adhesive film (18); the third laminating unit (10) is used to cover the lower surface of the second circuit processed by the second laminating unit (9) with a second protective film (19) with a welding window; the second laminating unit (11) is used to laminate the second circuit processed by the second laminating unit (9) and the first circuit processed by the first laminating unit (7) together, so that the upper surface of the second adhesive film (18) and the lower surface of the first adhesive film (15) are tightly laminated to form a circuit board; the winding unit (13) is used to roll up the circuit board processed by the second laminating unit (11); The screen printing unit (5) comprises a printing bottom roller and a circular screen printing roller (52) arranged in sequence from the upper right to the lower right, the circular screen printing roller (52) comprises a roller shaft (521), a roller (522) is fixedly sleeved on the outer side of the roller shaft (521), a plurality of arc-shaped printing plates (53) are provided on the outer side wall of the roller (522), and locking assemblies (51) are respectively provided at both ends of the roller (522), and the plurality of arc-shaped printing plates (53) are detachably mounted on the outer side wall of the roller (522) via two locking assemblies (51).

2. The flexible circuit board production device that facilitates the replacement of the plate roller according to claim 1, characterized in that: The locking assembly (51) includes an annular plate (511), which is movably sleeved on the outer side of the roller shaft (521); a threaded rod (512) is threadedly penetrated on one side of the end surface of the annular plate (511); one end of the threaded rod (512) is rotatably connected to the end of the roller (522); a guide rod (513) is movably penetrated on the other side of the end surface of the annular plate (511); one end of the guide rod (513) is fixedly connected to the end of the roller (522); a plurality of through holes (514) are provided in an annular array on the end surface of the annular plate (511); mounting plates (531) are respectively provided on both sides of the arc-shaped printing plate (53); the mounting plates (531) are snap-fitted and connected to the through holes (514).

3. The flexible circuit board production device with easy plate roller replacement according to claim 1, characterized in that: The outer wall of the roller (522) is provided with a plurality of first positioning holes (523), and the inner arc surface of the arc-shaped printing plate (53) is provided with a plurality of first positioning columns (532), and the first positioning columns (532) are engaged and connected with the first positioning holes (523).

4. The flexible circuit board production device that facilitates the replacement of the plate roller according to claim 2, characterized in that: The end surface of the annular plate (511) is provided with a second positioning column (515), the end surface of the roller (522) is provided with a second positioning hole (524), and the second positioning column (515) is engaged and connected with the second positioning hole (524).

5. The flexible circuit board production device that facilitates the replacement of the plate roller according to claim 2, characterized in that: The number of the arc-shaped printing plates (53) is four, and the four arc-shaped printing plates (53) form a circle, and the inner arc surface of each arc-shaped printing plate (53) is tightly fitted with the outer side wall of the roller (522).

6. The flexible circuit board production device with easy plate roller replacement according to claim 1, characterized in that: The first curing unit (4) and the second curing unit (6) are UV curing boxes.

7. The flexible circuit board production device with easy plate roller replacement according to claim 1, characterized in that: It also comprises a waste unit, which is used to recycle metal foil waste generated during die-cutting by the circular knife die-cutting unit (12).

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