CN215826179U - Single-sided flexible circuit board gravure roller continuous printing device - Google Patents
Single-sided flexible circuit board gravure roller continuous printing device Download PDFInfo
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- CN215826179U CN215826179U CN202122436013.1U CN202122436013U CN215826179U CN 215826179 U CN215826179 U CN 215826179U CN 202122436013 U CN202122436013 U CN 202122436013U CN 215826179 U CN215826179 U CN 215826179U
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Abstract
The utility model relates to a gravure roller continuous printing device for a single-sided flexible circuit board, which comprises a feeding station, a gravure roller printing station, an ink solidifying station, an ink cooling station and a controller, wherein the gravure roller printing station is used for carrying out continuous line roll printing on a flexible single-sided board substrate provided by the feeding station, the gravure roller printing station is provided with a gravure roller and a matched ink box, an ink scraper used for scraping ink on the surface of the outer edge of the gravure roller and a stamping roller used for pressing the flexible single-sided board substrate on the gravure roller to carry out ink line printing, line patterns in seamless butt joint from head to tail are arranged on the gravure roller, the ink box is positioned below the gravure roller, the stamping roller is positioned above the gravure roller, and the ink scraper is positioned between the ink box and the stamping roller. The utility model adopts the gravure roller with the line patterns in seamless butt joint from head to tail to realize continuous roll printing on the single-sided flexible circuit board, has high line precision, continuous roll printing line, no coincident joint and lower cost.
Description
Technical Field
The utility model relates to the field of production of flexible circuit boards, in particular to a gravure roller continuous printing device for a single-sided flexible circuit board.
Background
A Flexible Printed Circuit (FPC) is a Flexible Printed Circuit made of polyimide or polyester film, which has high reliability and is excellent, and is widely used in lighting products such as LED strips, lamps, panel lamps, etc. because it has the characteristics of free bending, folding, and winding, and free movement and extension in three-dimensional space.
Common flexible circuit boards are mainly divided into single-sided boards, double-sided boards, multilayer boards and the like, wherein the single-sided board process mainly comprises three processes of continuous screen printing, continuous exposure and die cutting, but the processes have some defects:
1. the continuous silk-screen printing process is characterized in that a line pattern is subjected to silk-screen printing on the surface of a copper foil layer of a flexible single-sided board substrate section by section through a traditional silk-screen printing process to achieve the effect that a line is continuous, however, line superposition of about 0.1-1 mm exists in two adjacent printing areas, line connection can affect attractiveness, and after the line width or line distance of the line is smaller than 0.3mm, the possibility of short circuit is greatly improved, so that the yield is low, and the production process is generally only suitable for continuous single-sided board products with large line width and line distance and low requirement on appearance;
2. the continuous exposure process is to continuously expose the flexible single-sided board substrate pasted with the dry film (photosensitive etching-resistant film) section by section without space through a whole roll of continuous exposure machine, and form a continuous circuit after development etching, but the production process has high cost and general efficiency;
3. the die cutting process is to carry out continuous die cutting on the copper foil layer of the single-sided board base material through the hob die, and in the process, waste copper is discharged to form a continuous circuit.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the existing single-sided flexible circuit board printing process, the utility model provides the gravure roller continuous printing device for the single-sided flexible circuit board, the circuit of roll printing is continuous without overlapped joints, and the gravure roller continuous printing device has the advantages of low cost and high precision.
In order to solve the technical problem, the utility model provides a gravure roller continuous printing device for a single-sided flexible circuit board, which comprises:
the feeding station is provided with a feeding roller for mounting a coiled flexible single-sided board substrate;
the gravure roller printing station is arranged on one side of the feeding station and used for carrying out continuous line printing on the flexible single-sided board base material provided by the feeding station, a gravure roller, a matched ink box, an ink scraper used for scraping ink on the surface of the outer edge of the gravure roller and a stamping roller used for pressing the flexible single-sided board base material on the gravure roller to carry out ink line printing are arranged on the gravure roller, line patterns which are in end-to-end seamless butt joint are arranged on the gravure roller, the ink box is positioned below the gravure roller, the stamping roller is positioned above the gravure roller, and the ink scraper is positioned between the ink box and the stamping roller and is attached to the outer edge of the gravure roller;
the printing ink curing station is arranged above the gravure roller printing station and is used for curing printing ink on the flexible single-sided board substrate printed with the printing ink circuit;
the printing ink cooling station is arranged on one side of the curing station and used for cooling the printing ink circuit cured on the flexible single-sided board base material; and
and the controller is respectively and electrically connected with the feeding station, the gravure roller printing station, the printing ink solidifying station and the printing ink cooling station.
The device further comprises a winding station which is arranged on the other side of the feeding station and used for winding the flexible single-sided board substrate printed with the printing ink circuit, and a winding roller is arranged on the winding station.
Further, the line pattern on the gravure roller consists of a plurality of dots engraved by laser.
Furthermore, the depth of a plurality of dots on the gravure roller is not less than 0.1mm, and a circuit pattern with the depth of not less than 0.1mm is formed.
Further, the minimum line width and the minimum line distance of the line pattern on the gravure roller can reach 0.1 mm.
Further, a plurality of tensioning rollers are respectively arranged on the feeding station, the gravure roller printing station, the winding station, the feeding station and the gravure roller printing station, the gravure roller printing station and the printing ink solidifying station, the printing ink solidifying station and the printing ink cooling station, and the printing ink cooling station and the winding station, and the flexible single-sided board base material is sequentially inserted between the stations to connect the feeding roller, the gravure roller, the winding roller and the tensioning rollers in a transmission manner.
Furthermore, a deviation-rectifying alarm unit electrically connected with the controller is arranged between the feeding station and the gravure roller printing station.
Further, the ink cartridge contains ink with fineness not more than 20 μm.
Further, the ink curing station adopts UV lamps to perform ink curing, and the UV lamps comprise at least 2 UV lamps with the power of 5-7 KW.
Further, the ink scraper is made of a polyurethane plate.
Compared with the prior art, the utility model has the advantages that:
the utility model adopts the gravure roller with the line patterns which are in seamless butt joint from head to tail to realize the continuous roll printing of the single-sided flexible circuit board, the line precision is high, the product with the minimum line width and the minimum line distance reaching 0.1mm can be produced, the line of the roll printing is continuous without overlapping joints, the cost of the gravure roller is low, the gravure roller is only equivalent to 10 percent of that of a die cutting hob die, the manufacturing period is short, and the gravure roller is equivalent to 1/4 of the die cutting hob die.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Figure 1 is a schematic structural view of the present invention,
figure 2 is a front view of the gravure roll 21,
the reference numbers are as follows:
the printing equipment comprises a feeding station 1, a feeding roller 11, a gravure roller printing station 2, a gravure roller 21, an ink box 22, an ink scraper 23, a stamping roller 24, an ink solidifying station 3, an ink cooling station 4, a rolling station 5, a rolling roller 51 and a tensioning roller 100.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the present invention is used to usually place, are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 2, the present invention provides a gravure roller continuous printing apparatus for a single-sided flexible circuit board, including a feeding station 1, a gravure roller printing station 2, an ink solidifying station 3, an ink cooling station 4 and a controller, wherein:
the feeding station 1 is provided with a feeding roller 11 for mounting a coiled flexible single-sided board base material, the coiled flexible single-sided board base material is rotatably mounted on the feeding roller 11, the feeding station 1 is provided with a feeding motor for driving the feeding roller 11, and the feeding motor is electrically connected with the controller;
the flexible single-sided board substrate adopts a glued substrate with a copper foil layer on the front side, a PI layer on the back side and an adhesive glue layer in the middle;
or adopts a non-adhesive substrate with a copper foil layer on the front surface and a PI layer on the back surface,
the type of the wound flexible single-face plate base material of the present invention is preferably:
breadth: 510 mm;
length: 300-500M;
and (3) thickness of the copper foil layer: 18 to 105 μm;
PI layer thickness (polyimide insulating resin): 20-50 μm;
and (3) glue thickness: a glue base material of 12-30 μm;
the gravure roller printing station 2 is arranged on one side of the feeding station 1 and is used for carrying out continuous line roll printing on the flexible single-sided board base material provided by the feeding station 1, and specifically, the gravure roller printing station 2 is provided with a gravure roller 21, a matched ink box 22, an ink scraper 23 for scraping ink on the outer edge surface of the gravure roller 21 and a stamping roller 24 for pressing the flexible single-sided board base material on the gravure roller 21 to carry out ink line printing;
the gravure roller 21 is provided with a line pattern which is seamlessly butted end to end, the line pattern consists of a plurality of dots which are engraved on the gravure roller 21 by laser, the depth of the dots is not less than 0.1mm, the depth of the formed line pattern is not less than 0.1mm, the thickness of a printing ink line is determined by the depth of the dots (namely the depth of the line pattern), if the depth is not enough, the printing ink line which is rolled on the surface of the single-sided board substrate copper foil is thinner, ink is easy to drop during etching, and the yield is influenced;
the minimum line width and the minimum line distance of the line pattern on the gravure roller 21 can both reach 0.1mm, which is a requirement on the precision of the line pattern, and as for the precision, the die cutting process is generally only suitable for products with the line width and the line distance not less than 0.6mm, but can not be suitable for products with higher precision requirements, and the line pattern on the gravure roller is engraved by laser, so that the precision can reach very high, and the requirement on the precision of the products with the line width and the line distance of 0.1mm can be met;
moreover, the flexibility of continuous printing by adopting the gravure roller 21 is higher, when a line (product model) needs to be changed, only the gravure roller engraved with a required line pattern needs to be changed, and a plurality of gravure rollers with different line patterns are manufactured according to different product models for standby;
the gravure roller has low cost which is only equivalent to 10 percent of the die cutting hob die, and the manufacturing period is short which is equivalent to 1/4 percent of the die cutting hob die;
a roll printing motor for driving the gravure roll 21 to rotate is also arranged on the gravure roll printing station 2 and is electrically connected with the controller, the ink box 22 is positioned below the gravure roll 21, the ink box 22 contains ink, the gravure roll 21 directly contacts the ink in the rotating process, so that the ink fully enters each dot, in order to ensure good roll printing effect, the precision of the laser engraved circuit pattern is higher, and therefore strict requirements on the dispersity (fineness) of the ink are met, the ink with the fineness not more than 20 micrometers is preferably adopted for the ink contained in the ink box 22, so that the circuit of the ink printed by the roll is clear, continuous and non-sticking is avoided, and the yield is high;
the embossing roller 24 is positioned above the gravure roller 21 and is used for pressing the copper foil layer of the flexible single-sided board substrate passing through the space between the gravure roller 21 and the embossing roller 24 on the gravure roller 21, the circuit pattern on the gravure roller 21 can be printed on the surface of the copper foil layer of the flexible single-sided board substrate through the rotation of the gravure roller 21 to form an ink circuit, when the printing roller 24 is used specifically, the embossing roller 24 can be set to be in a lifting type, when the machine is stopped or a new flexible single-sided board substrate is replaced, the embossing roller 24 is lifted to be away from the gravure roller 21, so that the flexible single-sided board substrate can be conveniently inserted, when the roller printing is needed, the embossing roller 24 is lowered to press the copper foil of the flexible single-sided board substrate on the gravure roller 21, then the circuit roller printing is carried out, and the specific lifting structure design of the embossing roller 24 is realized, and the utility model does not limit;
the ink scraper 23 is located between the ink box 22 and the stamping roller 24 and is attached to the outer edge of the gravure roller 21, the ink scraper 23 is preferably made of a polyurethane plate, in the rotating process of the gravure roller 21, the ink scraper 23 scrapes off redundant ink on the surface of the gravure roller 21, and the ink in each dot of a circuit pattern is reserved, so that a clear ink circuit can be printed on the gravure roller, it needs to be noted that the rotating direction of the gravure roller 21 firstly contacts with the ink through the ink box 22, then the ink on the surface of the outer edge is scraped off through the ink scraper 23, and finally the circuit pattern is printed on the surface of a copper foil layer of a flexible single-sided plate base material, and according to the position relation shown in fig. 1, the rotation of the gravure roller 21 is counterclockwise;
the printing ink curing station 3 is arranged above the gravure roller printing station 2 and is used for carrying out printing ink curing on the flexible single-sided board substrate printed with the printing ink circuit, and preferably adopts UV lamps for carrying out printing ink curing, wherein the UV lamps comprise at least 2 UV lamps of 5-7 KW, and the UV lamps are electrically connected with the controller;
the printing ink cooling station 4 is arranged on one side of the printing ink solidifying station 3, is used for cooling the printing ink circuit solidified on the flexible single-sided board base material, preferably adopts an air cooling mode, and comprises at least 3 fans facing the printing ink circuit, and the fans are electrically connected with the controller;
the controller is used for carrying out overall control on a feeding motor of the feeding station 1, a roll printing motor of the gravure roller printing station 2, UV lamps of the printing ink curing station 3 and fans of the printing ink cooling station 4;
the flexible single-sided board substrate with the ink circuit cooled by the ink cooling station 4 can directly enter an etching process, and after the ink is stripped and removed, a conductive circuit is formed on a copper foil layer of the flexible single-sided board substrate;
the flexible single-sided board substrate with the ink circuit after passing through the ink cooling station 4 can be directly wound for standby, only one winding station 5 is arranged on the other side of the feeding station 1, a winding roller 51 is arranged on the winding station 5 and used for winding the flexible single-sided board substrate printed with the ink circuit, and of course, a winding motor used for driving the winding roller 51 to rotate is also arranged on the winding station 5 and electrically connected with the controller;
a plurality of tension rollers 100 are respectively arranged on the feeding station 1, the gravure roller printing station 2, the winding station 5, between the feeding station 1 and the gravure roller printing station 2, between the gravure roller printing station 2 and the ink curing station 3, between the ink curing station 3 and the ink cooling station 4, and between the ink cooling station 4 and the winding station 5, the flexible single-sided plate base material is sequentially inserted between the stations to drive and connect the feeding roller 11, the gravure roller 21, the winding roller 51 and the tension rollers 100, and for continuous and stable transmission, the tension roller 100 adjacent to the feeding roller 11 is selected on the feeding station 1, the tension roller 100 adjacent to the gravure roller 21 in rotation on the gravure roller printing station 2, the tension roller 100 adjacent to the winding roller 51 is selected on the winding station 5, pressure sensors electrically connected with a controller are respectively arranged on the tension roller 100, and the controller controls the feeding motor through signals of the pressure sensors respectively, The rotating speeds of the roll printing motor and the winding motor enable the feeding and winding of the flexible single-sided board substrate to be in a balanced state all the time, specifically, when the pressure detected by the pressure sensor is increased, the feeding motor is accelerated or the receiving motor is decelerated, and when the pressure detected by the pressure sensor is reduced, the feeding motor is decelerated or the receiving motor is accelerated, so that the single-sided flexible circuit board substrate is prevented from being too tight or too loose in the roll printing process;
in addition, a deviation-rectifying alarm unit electrically connected with the controller is further arranged between the feeding station 1 and the gravure roller printing station 2, specifically, the deviation-rectifying alarm unit comprises two infrared sensors, the single infrared sensor respectively faces the positions of two sides of the single-sided flexible circuit board base material, and in the roll printing process, when the two infrared sensors detect that the single-sided flexible circuit board base material is transversely deviated, deviation signals are fed back to the controller to control the controller to perform
The controller control device is stopped integrally, and then the transverse position of the whole feeding station 1 is adjusted.
It should be noted that, a control program for controlling each execution component is provided in the controller, and the control program is conventional in the art and is not limited.
The working principle is as follows: the single-sided flexible circuit board base material is transmitted from the feeding station 1 to the gravure roller printing station 2, a continuous ink line is printed on a copper foil layer of the single-sided flexible circuit board base material through continuous roll printing of a gravure roller 21, and then the single-sided flexible circuit board base material can directly enter a subsequent etching process after ink solidification and ink cooling in sequence, or the single-sided flexible circuit board base material with the ink line is rolled for standby.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (10)
1. The utility model provides a continuous printing device of single face flexible line way board gravure roller which characterized in that includes:
the feeding device comprises a feeding station (1), wherein a feeding roller (11) for mounting a coiled flexible single-sided board substrate is arranged on the feeding station (1);
the gravure roller printing station (2) is arranged on one side of the feeding station (1) and is used for performing continuous line printing on a flexible single-sided board substrate provided by the feeding station (1), a gravure roller (21) and a matched ink box (22) are arranged on the gravure roller printing station (2), an ink scraper (23) used for scraping ink on the surface of the outer edge of the gravure roller (21) and a stamping roller (24) used for pressing the flexible single-sided board substrate on the gravure roller (21) to perform ink line printing, line graphs in seamless butt joint from head to tail are arranged on the gravure roller (21), the ink box (22) is positioned below the gravure roller (21), the stamping roller (24) is positioned above the gravure roller (21), and the ink scraper (23) is positioned between the ink box (22) and the stamping roller (24) and is attached to the outer edge of the gravure roller (21);
the printing ink curing station (3) is arranged above the gravure roller printing station (2) and is used for curing printing ink on the flexible single-sided board substrate printed with the printing ink circuit;
the printing ink cooling station (4) is arranged on one side of the printing ink curing station (3) and is used for cooling the printing ink circuit cured on the flexible single-sided board base material; and
and the controller is respectively and electrically connected with the feeding station (1), the gravure roller printing station (2), the ink solidifying station (3) and the ink cooling station (4).
2. The gravure roller continuous printing device for the single-sided flexible circuit board according to claim 1, further comprising a winding station (5) disposed at the other side of the feeding station (1) and used for winding the flexible single-sided board substrate printed with the ink circuit, wherein a winding roller (51) is disposed on the winding station (5).
3. The gravure roll continuous printing device for the single-sided flexible circuit board according to claim 1, wherein: the circuit pattern on the gravure roller (21) consists of a plurality of screen points engraved by laser.
4. The gravure roll continuous printing apparatus for the single-sided flexible wiring board according to claim 3, wherein: the depth of a plurality of screen points on the gravure roller (21) is not less than 0.1mm, and a circuit pattern with the depth of not less than 0.1mm is formed.
5. The gravure roll continuous printing apparatus for the single-sided flexible wiring board according to claim 3, wherein: the minimum line width and the minimum line distance of the line pattern on the gravure roller (21) can reach 0.1 mm.
6. The continuous gravure roll printing device for the single-sided flexible circuit board according to claim 2, wherein a plurality of tensioning rolls (100) are respectively arranged on the feeding station (1), the gravure roll printing station (2), the winding station (5), the feeding station (1) and the gravure roll printing station (2), the gravure roll printing station (2) and the ink curing station (3), the ink curing station (3) and the ink cooling station (4), and the ink cooling station (4) and the winding station (5), and the flexible single-sided flexible circuit board substrate is sequentially inserted between the tensioning stations to drivingly connect the feeding roll (11), the gravure roll (21), the winding roll (51) and the tensioning rolls (100).
7. The gravure roll continuous printing device for the single-sided flexible circuit board according to claim 1, wherein: and a deviation-rectifying alarm unit electrically connected with the controller is also arranged between the feeding station (1) and the gravure roller printing station (2).
8. The gravure roll continuous printing device for the single-sided flexible circuit board according to claim 1, wherein: the ink box (22) contains ink with the fineness not more than 20 mu m.
9. The gravure roll continuous printing device for the single-sided flexible circuit board according to claim 1, wherein: and the ink curing station (3) adopts a UV lamp to cure the ink, and comprises at least 2 UV lamps with the power of 5-7 KW.
10. The gravure roll continuous printing device for the single-sided flexible circuit board according to claim 1, wherein: the ink scraper (23) is made of a polyurethane plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122436013.1U CN215826179U (en) | 2021-10-11 | 2021-10-11 | Single-sided flexible circuit board gravure roller continuous printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122436013.1U CN215826179U (en) | 2021-10-11 | 2021-10-11 | Single-sided flexible circuit board gravure roller continuous printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215826179U true CN215826179U (en) | 2022-02-15 |
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ID=80202331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122436013.1U Active CN215826179U (en) | 2021-10-11 | 2021-10-11 | Single-sided flexible circuit board gravure roller continuous printing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215826179U (en) |
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2021
- 2021-10-11 CN CN202122436013.1U patent/CN215826179U/en active Active
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