CN201439258U - Silk screen printing backing plate - Google Patents

Abstract

The utility model provides a screen printing pad, comprising a plurality of printing areas, a connecting part connected between the plurality of printing areas, and a holding part arranged around the periphery of the printing area, wherein the printing area is provided with a plurality of oiling holes, the connecting part at the edge of the printing area is provided with a plurality of positioning holes, and at least one group of opposite sides of the holding part is provided with a groove. The screen printing pad of the utility model is used for screen printing green oil of a circuit board. After the green oil is printed, the circuit board can be conveniently removed from the screen printing pad, effectively avoiding the quality hidden danger caused by the green oil sticking to the board due to the slide plate, and improving the production efficiency to a certain extent.

Description

Silk screen pad

technical field

The utility model relates to a silk screen backing plate, in particular to a backing plate used for silk screen printing green oil.

Background technique

With the rapid development of science and technology, the application of circuit boards is becoming more and more extensive. In many fields such as electronics and communications, the use of circuit boards is inseparable. It can be said that the quality of circuit boards directly affects the quality of its electronic products. The quality is good and bad. In the process of making circuit boards, each type of circuit board inevitably needs to be screen-printed with green oil. This operation is generally to place the circuit board on a backing board for printing. However, the existing backing board is a whole For a rectangular board, after the green oil is screen-printed, the positioning nails on it are flush with the board. When the circuit board is taken out, it is easy to slide the board and make the green oil on the reverse side stick to the board surface, thereby causing hidden dangers in the quality of the circuit board; and because The inconvenient process of taking out the board greatly affects the production efficiency of the circuit board.

Utility model content

The purpose of this utility model is to provide a silk screen backing plate, which is used for screen printing green oil on circuit boards. After printing green oil, it is convenient to take the circuit board, and can effectively prevent the quality of the green oil from sticking to the board due to the skateboard. The problem of hidden dangers has improved production efficiency to a certain extent.

In order to achieve the above object, the utility model provides a screen printing backing plate, which includes several printing areas, a connecting portion connected between the several printing areas, and a gripping portion arranged around the periphery of the printing area, the printing area Several oil holes are arranged on the top, several positioning holes are arranged on the connecting part at the edge of the printing area, and grooves are arranged on at least one pair of opposite sides of the holding part.

The thickness of the backing plate is 1.66mm.

The size of the printing area is the same as that of the circuit board to be printed.

Positioning holes are provided on the edges of the four end legs of the printing area.

The printed circuit board is to be fixed on the printing area through the positioning hole, and the through hole on the printed circuit board overlaps directly above the lower oil hole.

Both sets of opposite sides of the gripping portion are provided with grooves.

The groove is in concave arc shape.

The groove is a concave trapezoid.

Beneficial effects of the utility model: the screen printing backing plate of the utility model is used for screen printing green oil on circuit boards. After the green oil is printed, it is more convenient and quick to take the circuit board, which can effectively prevent the green oil from sticking due to the skateboard. The hidden quality problem caused by the board has improved the production efficiency to a certain extent.

In order to further understand the features and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model. However, the accompanying drawings are for reference and illustration only, and are not intended to limit the present utility model.

Description of drawings

The technical solution and other beneficial effects of the utility model will be apparent through the detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings.

Fig. 1 is a structural schematic diagram of a screen printing backing plate of the present invention.

Detailed ways

In order to further illustrate the technical means adopted by the utility model and its effects, a detailed description will be given below in conjunction with preferred embodiments of the utility model and accompanying drawings.

As shown in Figure 1, it is a structural schematic diagram of the screen printing backing plate of the present invention, and the screen printing backing plate includes: several printing areas 1, connecting parts 2 connected between the several printing areas 1, and a ring located in the printing area 1 peripheral holding portion 3, the printing area 1 is provided with several oil holes 12, the connecting portion 2 at the edge of the printing area 1 is provided with several positioning holes 22, and at least one group of opposite sides of the holding portion 3 is provided with There are grooves 32 .

As an optional embodiment of the present invention, the thickness of the backing plate may be 1.66 mm. Several rectangular printing areas 1 are arranged on it, and the size of the printing area 1 is made according to the size of the printed circuit board (not shown), which is the same size as the printed circuit board. Positioning holes 22 are provided on the edges of the four pins of the printing area 1, and the printed circuit board is to be fixed on the printing area 1 through the positioning holes 22, and the through holes on the printed circuit board overlap directly above the lower oil hole 12. , to facilitate the excess green oil to flow away during the silk screen printing process. In particular, grooves 32 are provided on two sets of opposite sides of the gripping portion 3. As a preferred embodiment, the grooves 32 can be set as concave arcs or concave trapezoids, so that Board removal operation after silk screen printing is completed. Due to the setting of the groove 32, after the silk screen printing is completed, the human hand can hold the groove part, and the circuit board can be easily removed from the silk screen backing plate, which avoids the easy sliding of the existing silk screen backing plate when taking the board. As a result, the green oil on the reverse side sticks to the circuit board to cause quality problems, and it also improves production efficiency to a certain extent.

In summary, the screen printing backing plate of the utility model is used for screen printing green oil on circuit boards. After the green oil printing is completed, the circuit board can be easily removed from the screen printing backing plate, effectively avoiding the The hidden quality problem caused by the green oil sticking to the skateboard has improved the production efficiency to a certain extent.

As mentioned above, for those of ordinary skill in the art, various other corresponding changes and deformations can be made according to the technical scheme and technical concept of the present utility model, and all these changes and deformations should belong to the claims of the present utility model. protected range.

Claims (8)

1. A silk screen backing plate, characterized in that it comprises several printing areas, a connecting portion connected between the several printing areas, and a gripping portion arranged around the periphery of the printing area, and several printing areas are arranged on the printing area. The lower oil hole is provided with several positioning holes on the connecting part at the edge of the printing area, and grooves are provided on at least one pair of opposite sides of the gripping part. 2. The screen printing backing plate according to claim 1, characterized in that, the thickness of the backing plate is 1.66mm. 3. The screen printing pad according to claim 1, wherein the size of the printing area is the same as that of the circuit board to be printed. 4. The screen printing backing plate according to claim 1, wherein positioning holes are provided on the edges of the four end legs of the printing area. 5 . The screen printing backing board according to claim 1 , wherein the printed circuit board to be fixed is fixed on the printing area through the positioning holes, and the through holes on the printed circuit board overlap directly above the lower oil hole. 6 . 6 . The screen printing pad according to claim 1 , wherein grooves are provided on two sets of opposite sides of the holding portion. 6 . 7. The screen printing pad according to claim 1, wherein the groove is in a concave arc shape. 8. The screen printing pad according to claim 1, wherein the groove is a concave trapezoid.

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