Printing base with vacuum cavity

Abstract

The printing base with the vacuum cavities comprises a base body and a cover plate, a rectangular first vacuum cavity exists in the middle of the base body, a plurality of column holes are formed in the side walls of the front side and the rear side of the base body at equal intervals, first air suction holes are formed in the inner wall of the first vacuum cavity, and the first air suction holes are communicated with the column holes. The cover plate covers the top face of the base, a PBC containing groove is formed in the middle of the cover plate, clamping holes are formed in the four corners of the cover plate, protruding edges matched with the clamping holes are arranged on the top face of the base, and the buckles are connected with the protruding edges. The beneficial effects of the utility model are that a method of fixing the PCB circuit board by adopting vacuum fixation instead of a thimble PIN is adopted, and the problems that the time is wasted and the precision can not be ensured and the printing effect is influenced because the PIN thimble is manually arranged to support the PCB board are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of PCB board processing, specifically relates to a printing base with vacuum cavity. BACKGROUND

[0002] In the preparation process of the PCB board, printing needs to be performed on the PCB board to achieve the desired effect. The printing of the PCB board is usually implemented on a PCB board printing device. The printing device includes a printing base and a printing machine. Specifically, during printing, the PCB board is transferred to the printing base, the printing base supports and fixes the circuit board, and then the printing machine is moved to be in contact with the PCB board to print the PCB board to achieve the printing effect.

[0003] Currently, in the SMT printing process, the device adopts the pin printing technology, and the pin is used to support the PCB circuit board. The technician first arranges the pin according to the length and width of the PCB board and the position of the components. However, due to the low precision of manual operation and the waste of time, the process is too complicated, the line changing time is too long, and the printing effect is not ideal, which may cause phenomena such as sharpness, less tin, and short circuit. Therefore, the present invention is applied. SUMMARY

[0004] To solve the above technical problems, the utility model provides a printing base with a vacuum cavity to improve the above shortcomings.

[0005] The utility model relates to a printing base with vacuum cavity, including base and cover plate, the base middle exists the first vacuum cavity of rectangle, the side wall inside of base front and back two sides all sets up a plurality of column holes with equal interval, first suction hole is arranged on the inner wall of the first vacuum inner chamber, first suction hole and column hole are through, the cover plate covers on the base top surface, the middle of cover plate sets up PBC board containing groove, a plurality of adsorption holes are arranged on the PCB board containing groove, the adsorption hole from top to bottom includes first recess, second recess, third recess and bottom hole in proper order, mesh is arranged in the first recess, clamping hole is arranged in the four corner positions of the cover plate, the top surface of the base is provided with a convex rib matched with the clamping hole, and the buckle is connected with the convex rib.

[0006] Further, an anti-skid sleeve ring is arranged on the convex rib.

[0007] Further, a groove is arranged on one side of the base, a vacuum mounting portion is arranged in the groove, the vacuum mounting portion is used for vacuum connector connection, and the vacuum mounting portion is in communication with the first vacuum.

[0008] Further, a rotary switch is arranged on the vacuum mounting portion.

[0009] Further, a connecting portion is arranged on the side surface adjacent to the rotary switch of the base, and the connecting portion is fixed with the vacuum mounting portion.

[0010] Further, the cover plate bottom surface and the column hole form a second vacuum cavity.

[0011] Further, a filter box is arranged in the vacuum mounting portion.

[0012] Further, the cover plate bottom surface is provided with a strip-shaped groove, and the column hole and the strip-shaped groove are through.

[0013] The utility model discloses a method for fixing PCB circuit board by vacuum instead of thimble PIN, solves the problem of wasting time and affecting printing effect caused by arranging PIN thimble to support PCB board manually. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the utility model.

[0015] Figure 2 It is the structure schematic diagram of the cover plate bottom surface.

[0016] Figure 3 It is the structure schematic diagram of the air suction hole.

[0017] Figure 4 It is the section schematic diagram of the inner wall.

[0018] Fig. 1 base, 2 cover plate, 3 PCB board containing groove, 30 strip-shaped groove, 4 air suction hole, 41 first recess, 42 second recess, 43 third recess, 44 bottom hole, 411 mesh, 5 first vacuum cavity, 51 second vacuum hole, 6 column hole, 61 inner wall, 7 convex rib, 8 clamping hole, 9 vacuum mounting portion, 10 rotary switch, 11 recess, 12 connecting piece. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0020] As Figures 1-4As shown, the utility model relates to a kind of printing base with vacuum cavity, including base 2 and cover plate 1, rectangular first vacuum cavity 5 exists in the middle of the base, multiple column holes 6 are evenly arranged in the inside of the sidewall of the front and rear sides of the base, first air suction hole 51 is arranged on the inner wall of the first vacuum inner cavity, the first air suction hole is through with column hole, the cover plate is covered on the top surface of base, PBC plate containing groove 3 is arranged in the middle of the cover plate, multiple adsorption holes 4 are on the PCB plate containing groove, the adsorption hole includes first groove 41, second groove 42, third groove 43 and bottom hole 44 in turn from top to bottom, mesh 411 is arranged in the first groove, clamping hole 8 is arranged in the four corner positions of the cover plate, convex rib 7 matched with clamping hole is arranged on the top surface of base, the clamping buckle is connected with convex rib.

[0021] As a kind of technical improvement, anti-skid sleeve ring (not shown in figure) is arranged on the convex rib.

[0022] As a kind of technical improvement, recess 11 is arranged on one side of the base, vacuum mounting portion 9 is arranged in the recess, the vacuum mounting portion is used for vacuum connector, and the vacuum mounting portion is through with first vacuum.

[0023] As a kind of technical improvement, rotary switch 10 is arranged on the vacuum mounting portion, and rotary switch is used to open the inlet of vacuum mounting portion.

[0024] As a kind of technical improvement, connecting portion 12 is arranged on the side surface of the base adjacent to rotary switch, and the connecting portion is fixed with vacuum mounting portion.

[0025] As a kind of technical improvement, second vacuum cavity is formed between the bottom surface of cover plate and column hole.

[0026] As a kind of technical improvement, filter box (not shown in figure) is arranged in the vacuum mounting portion, and filter box is used for filtering air.

[0027] As a kind of technical improvement, strip groove is arranged on the bottom surface of cover plate, and column hole is through with strip groove.

[0028] When cover plate is fixed on base, first vacuum cavity and second vacuum cavity form vacuum area through vacuum, and PCB plate can be adsorbed and fixed by being placed on cover plate.

Claims

1. A printing shoe with a vacuum chamber, characterized by: The utility model provides a vacuum adsorption device, including base and cover plate, the base middle is equipped with rectangular first vacuum cavity, the inside of sidewall of base two sides is equipped with a plurality of column hole with equal interval, the inner wall of first vacuum cavity is equipped with with column hole through first air suction hole, the cover plate covers on the top surface of base, and the middle of cover plate is equipped with PCB board accommodating groove, is equipped with a plurality of adsorption holes in PCB board accommodating groove, and the adsorption hole from top to bottom includes first recess, second recess, third recess and bottom hole in proper order, and is equipped with gauze in first recess, the bottom surface of cover plate is equipped with strip groove, and the strip groove is through with column hole and forms second vacuum cavity, the four corner positions of cover plate are equipped with card hole, and the top surface of base is equipped with with card hole matching convex edge, is equipped with anti -skid ferrule on the convex edge, and card hole and convex edge are connected with the cooperation of carding, one side of base is equipped with recess, and the recess is equipped with vacuum installation unit, and the vacuum installation unit is through with first vacuum cavity, and is equipped with filter box in vacuum installation unit, and is equipped with rotary switch on vacuum installation unit.

2. A printing base with vacuum cavity as claimed in claim 1, wherein: The convex edge is provided with an anti-skid ferrule.

3. The printing base with vacuum cavity according to claim 1, characterized in that: One side of the base is provided with a recess, and the recess is provided with a vacuum installation unit.

4. A print bed with a vacuum chamber as claimed in claim 3, characterized in that: The vacuum installation unit is provided with a rotary switch.

5. A print bed with a vacuum chamber as claimed in claim 4, characterized in that: The side surface adjacent to the rotary switch of the base is provided with a connecting part, and the connecting part is fixed with the vacuum installation unit.

6. A vacuum platen according to claim 4, wherein: The bottom surface of the cover plate and the column hole form a second vacuum cavity.

7. The vacuum chambered print bed of claim 4, wherein: The vacuum installation unit is provided with a filter box.

8. The vacuum chambered print bed of claim 1, wherein: The bottom surface of the cover plate is provided with a strip groove, and the column hole is through with the strip groove. The bottom surface of the cover plate is provided with a strip groove, and the column hole is through with the strip groove.

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