CN202242285U - Quick positioner of FPC circuit board screen printing - Google Patents

Abstract

The utility model discloses a FPC circuit board screen printing fast positioning device, which includes an ink pad and an upper mold arranged just above the ink pad, a template is arranged on the lower surface of the upper mold, and is characterized in that a reel is arranged on the upper part of a side surface in front of the upper surface of the ink pad, and a plurality of transparent centrifugal films are rolled on the reel. The utility model adopts a centrifugal film and its reel, and a plurality of centrifugal films are arranged on the reel, and a certain position adjustment margin has been reserved. When in use, the transparent centrifugal film can be directly placed on the ink pad, and the ink pad is first adjusted to print a pattern on the transparent centrifugal film, and the transparent centrifugal film with the printed pattern is covered on the FPC board that needs screen printing, and the corresponding position of the FPC board should meet the design requirements, and the transparent centrifugal film is fixed on the ink pad according to the original position of the printed transparent centrifugal film, and the transparent centrifugal film is pulled out, and formal batch screen printing is performed, and positioning is fast and efficient, suitable for flow operation, and convenient for automated operation.

Description

A fast positioning device for FPC circuit board screen printing

technical field

The utility model relates to circuit board processing and printing technology, in particular to an efficient and convenient fast positioning device for FPC circuit board screen printing.

Background technique

Screen printing is to transfer the ink through the holes of the stencil to the substrate through a certain pressure. Due to the advantages of large batches, cheap prices, bright colors, long shelf life, and fast delivery, it has been recognized by more and more industries and widely used. When screen printing is used for circuit boards, due to the higher and higher requirements for wiring density and precision, correspondingly higher requirements are put forward for the screen printing positioning method and accuracy of printed boards.

The purpose of screen printing positioning is to ensure that there will be no graphic misalignment and movement between the printing pad and the template during each screen printing, so as to ensure the accuracy of screen printing, and improve the efficiency of template replacement and the pass rate of printing pad printing. When positioning the traditional circuit board screen printing, the circuit board is placed on the printing pad, and the corresponding position of the printing pad and the template is judged by experience or intuition by operating the printing pad adjustment device. After trial printing of the FPC board on the printing pad, according to the offset The size of the ink pad is adjusted repeatedly until the position of the printed ink pad meets the design requirements. This operation process is not only time-consuming and labor-intensive, but also a waste of materials.

Therefore, it is necessary to develop an efficient and convenient FPC circuit board screen printing rapid positioning device to speed up positioning speed and accuracy, adapt to the production needs of high-speed automated circuit board screen printing, and greatly improve FPC production efficiency and product quality.

Utility model content

The utility model mainly aims at the above problems and provides a fast positioning device for FPC circuit board screen printing with simple, efficient, accurate, practical and environment-friendly positioning operations.

The technical scheme that the utility model solves its technical problem adopts is:

A fast positioning device for FPC circuit board screen printing, which includes a printing pad and an upper mold arranged directly above the printing pad, the lower surface of the upper mold is provided with a stencil, and it is characterized in that the front of the upper surface of the printing pad The upper part of one side is provided with a reel on which a plurality of transparent centrifugal membranes are rolled.

The reel is fixedly arranged on the printing pad through a support, and one end of the transparent centrifugal membrane is fixed on the reel, and the other end hangs down naturally, and its rotation angle is 0-270 degrees; the reel in the support Between the printing pad and the side surface, there is a gap for accommodating the used transparent centrifugal membrane to turn pages.

The fast positioning device for screen printing of FPC circuit boards also includes an FPC circuit board to be printed overlapping with the printed transparent centrifugal film, and a feeding device for the FPC circuit board to be printed.

During the utility model work, comprise the following steps:

a. Install and fix the template on the upper mold of the screen printing machine; the template is prefabricated with the FPC pattern that needs to be printed;

b. Tighten and flatten a transparent centrifugal membrane and place it on the printing pad;

c. Fix the printing pad, and print the first FPC pattern that needs silk screen printing on the transparent centrifugal film;

d. Cover the transparent centrifugal film with the printed pattern on the first FPC board to be printed, and position it according to the overlap of the two graphics, and then fix the FPC board on the printing pad;

e. Mark the position of the first FPC board, extract the transparent centrifugal film, and print the first FPC board;

f. According to the fixed position of the first FPC board and the fixed position of the printing pad, the subsequent FPC boards to be printed are replaced in turn, and the printing pad is printed in batches without adjusting the position of the printing pad.

The transparent centrifugal membrane described in the present invention has excellent physical and chemical properties such as stable size, transparency, and recyclability. The utility model can use waste centrifugal membranes to save materials.

The utility model is provided with a centrifugal membrane and its reel, and the reel is provided with a plurality of centrifugal membranes, and a certain position adjustment margin has been reserved. When in use, the transparent centrifugal membrane can be directly placed on the printing pad. First, adjust the printing pad in the transparent Print the pattern on the centrifugal membrane, cover the printed transparent centrifugal membrane on the FPC board that needs screen printing, the corresponding position of the FPC board should meet the design requirements, and fix it on the printing pad according to the original position of the printed transparent centrifugal membrane , Pull out the transparent centrifugal membrane, and formally batch screen printing. In the process of operation, once the specifications and models of the template and printing pad are determined, assembly line operation can be implemented to facilitate automatic operation. After a printing and positioning, the used centrifugal membrane is retracted to the reel and placed inside it. When the next printing and positioning is required, a new unused centrifugal membrane is taken from the outside for operation until it is placed on the reel. After all the centrifugal membranes are used, take off the reel, replace all the centrifugal membranes, or re-use all the centrifugal membranes.

The utility model has the advantages of reasonable structure, convenient and quick use, and can realize batch automatic production by cooperating with the FPC automatic feeding device, so as to improve production efficiency and product quality.

Below in conjunction with accompanying drawing and embodiment the utility model is further described in detail.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the utility model.

Detailed ways

Referring to Fig. 1, the FPC circuit board screen printing fast positioning device that the present embodiment improves, it comprises a printing pad 1 and the upper mold 2 that is arranged on this printing pad 1 just above, and the lower surface of this upper mold 2 is provided with template 3, The upper part of a side in front of the upper surface of the printing pad 1 is provided with a reel 6, on which a plurality of transparent centrifugal films 7 are rolled up; the reel 6 is fixedly arranged on the printing pad 1 by a bracket 8 , and one end of the transparent centrifugal membrane 7 is fixed on the reel 6, and the other end hangs down naturally, and its rotation angle is 0-270 degrees. Rewind shaft 6, and place the other side (inside) of scroll shaft 6; Between the scroll shaft 6 in described support 8 and printing pad 1 side surface, leave the space that is used for accommodating the used transparent centrifugal membrane 7 pages .

Described FPC circuit board silk screen printing fast positioning device, it also comprises one and the FPC circuit board 5 to be printed that overlaps mutually with the transparent centrifuge film 7 after printing, and a FPC circuit board feeding device (drawing not shown) to be printed .

During the utility model work, comprise the following steps:

a, the template 3 is installed and fixed on the upper mold 2 of the screen printing machine; the template 3 is prefabricated with the FPC pattern to be printed;

b. Take a transparent centrifuge film 7 sequentially from the reel 6 and tighten it, flatten it and place it on the upper surface of the printing pad 1;

c. Fix the printing pad 1, and print the first FPC pattern that needs silk screen printing on the transparent centrifugal membrane 7;

d. Cover the transparent centrifugal film 7 with the printed pattern on the first FPC board 5 to be printed, and position it according to the overlap of the two graphics, and then fix the FPC board 5 on the printing pad 1;

e. Mark the position of the first FPC board 5, extract the transparent centrifugal film 7, and print the first FPC board 5;

f. According to the fixed position of the first FPC board 5 and the fixed position of the printing pad 1, the subsequent FPC boards 5 to be printed are replaced sequentially for batch printing without adjusting the position of the printing pad 1.

The transparent centrifugal membrane described in the present invention has excellent physical and chemical properties such as stable size, transparency, and recyclability. The utility model can use waste centrifugal membranes to save materials.

The utility model is provided with a centrifugal membrane 7 and its reel 6. The reel 6 is provided with a plurality of centrifugal membranes 7, and a certain position adjustment margin has been reserved. When in use, the transparent centrifugal membrane 7 can be directly placed on the printing table 1. First, adjust the printing pad 1 to print the pattern on the transparent centrifugal film 7, cover the printed transparent centrifugal film 7 on the FPC board 5 that needs to be screen printed, so that the corresponding position of the FPC board 5 should meet the design requirements, according to the printing Make the original position of the transparent centrifugal film 7 and fix it on the printing pad, take out the transparent centrifugal film 7, and formally screen-print the FPC board 5 in batches.

During its operation, once the specifications and models of the template 3 and the printing pad 1 are determined, assembly line operation can be implemented to facilitate automatic operation. After performing a printing and positioning, the used centrifugal membrane 7 can be retracted from the reel and placed on its inner side. When the next printing and positioning is required, a new unused centrifugal membrane 7 is taken from the outside for operation. After all the centrifugal membranes 7 on the reel 6 are used up, the reel 6 is removed and all the centrifugal membranes 7 are replaced, or all the centrifugal membranes 7 are restored and then reused, which meets the requirements of environmental protection.

As described in the above-mentioned embodiments of the present invention, the FPC circuit board screen printing fast positioning device obtained by adopting the same or similar other schemes is within the protection scope of the present invention.

Claims (5)

1. FPC circuit board serigraphy fast-positioning device; It comprises an ink pad and is arranged on the patrix directly over this ink pad; The lower surface of this patrix is provided with masterplate, it is characterized in that, the top of a side in described ink pad upper surface the place ahead; Be provided with a spool, volume is provided with most transparent centrifugal films of opening on this spool.

2. circuit board serigraphy fast-positioning device according to claim 1; It is characterized in that described spool is fixedly installed on the said ink pad through a support, and an end of said transparent centrifugal film is fixed on this spool; The other end is sagging naturally, and its anglec of rotation is the 0-270 degree.

3. FPC circuit board serigraphy fast-positioning device according to claim 2 is characterized in that, between the spool and ink pad side surface in the said support, leaves and is used for the space of ccontaining used transparent centrifugal film page turning.

4. FPC circuit board serigraphy fast-positioning device according to claim 1 is characterized in that, its also comprise one with the printing after the overlapped FPC circuit board to be printed of transparent centrifugal film.

5. FPC circuit board serigraphy fast-positioning device according to claim 1 is characterized in that, it also comprises a FPC circuit board pay-off to be printed.

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