Printing jig base

Abstract

The utility model relates to a printing jig base, which comprises a cover plate and a base, a vacuum cavity is arranged on the top surface of the base, the cover plate is separably arranged on the top surface of the base, the cover plate is used for accommodating a printed circuit board (PCB), and two sets of vacuum pipelines are arranged in the cover plate. According to the utility model, two sets of two vacuum pipelines are arranged and can be used for carrying out different adsorption matching on the PBC board, so that the debugging under different printing conditions is realized.

Description

Technical Field

[0001] This utility model relates to the field of PCB board carriers, specifically to a printing fixture base. Background Technology

[0002] During the PCB manufacturing process, printing is required on the PCB to achieve the desired effect. PCB printing is typically performed on PCB printing equipment. This equipment includes a printing base and a printing press. During printing, the PCB is transferred to the printing base, which supports and secures the circuit board. The printing press then moves to the PCB to adhere to it and perform printing, achieving the desired effect.

[0003] Currently, in the SMT printing process, equipment uses ejector pin printing technology, where ejector pins are installed to support the PCB circuit board. Technicians first arrange the ejector pins according to the length and width of the PCB board and the position of the components. However, manual operation is not precise, is time-consuming, too cumbersome, and has too long a turnaround time, resulting in unsatisfactory printing effects such as pin spikes, insufficient solder, and even short circuits. In improved technologies, a vacuum chamber is generally designed to fix the PCB circuit board, such as in publication number: CN214928022 U. However, this adsorption system is only one set, which is not conducive to adjustment. Therefore, this invention application is hereby filed. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, the present invention provides a printing fixture base that can improve the above deficiencies.

[0005] This utility model relates to a printing fixture base, including a cover plate and a base. A vacuum cavity is provided on the top surface of the base. The cover plate is detachably disposed on the top surface of the base. The cover plate is used to accommodate a PCB board. Two sets of vacuum pipelines are provided inside the cover plate.

[0006] Furthermore, the cover plate is mounted on the base by a magnet, and the magnet is mounted on the top surface of the base.

[0007] Furthermore, a first vacuum connection end and a second vacuum connection end are respectively provided on both sides of the base.

[0008] Furthermore, the vacuum pipeline includes a first vacuum port and a second vacuum port, wherein the first vacuum port and the second vacuum port are arranged in a matrix.

[0009] Furthermore, the top surface of the cover plate is provided with a pressing spring for pressing the PBC plate.

[0010] Furthermore, the pressing spring is fixed by a rotating shaft, and the pressing spring includes an arc-shaped portion, the front end of which has an elastic protrusion.

[0011] This invention features two sets of dual vacuum pipelines, which can be used to perform different adsorption combinations on PBC boards, thereby enabling adjustments to different printing conditions. Attached Figure Description

[0012] Figure 1 This is a top view schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic cross-sectional view of the structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the compression spring structure.

[0015] Diagram: 1 Cover plate, 2 Base, 3 First vacuum air hole, 4 Second vacuum air hole, 41 Expanded diameter hole, 5 Vacuum cavity, 6 Magnet, 7 First vacuum connection end, 8 Second vacuum connection end, 9 Pressing spring, 91 Arc-shaped part, 92 Protrusion, 10 Rotating shaft. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0017] like Figure 1-3 As shown, this utility model relates to a printing fixture base, including a cover plate 1 and a base 2. A vacuum cavity 5 is provided on the top surface of the base. The cover plate is detachably disposed on the top surface of the base. The cover plate is used to accommodate a PCB board. Two sets of vacuum pipelines are provided inside the cover plate.

[0018] As a technical improvement, the cover plate is mounted on the base by a magnet 6, which is mounted on the top surface of the base.

[0019] As a technical improvement, a first vacuum connection end 7 and a second vacuum connection end 8 are respectively provided on both sides of the base. The first vacuum connection end and the second vacuum connection end are respectively connected to two vacuum systems.

[0020] As a technical improvement, the vacuum pipeline includes a first vacuum port 3 and a second vacuum port 4. The first vacuum port is arranged in a matrix, and the second vacuum port is arranged in a matrix, wherein the lower end of the second vacuum port has an enlarged diameter hole 41.

[0021] As a technical improvement, the top surface of the cover plate is provided with a pressing spring 9 for pressing the PBC plate.

[0022] As a technical improvement, the pressing spring is fixed by a rotating shaft 10. The pressing spring includes an arc-shaped portion 91, and the front end of the arc-shaped portion has an elastic protrusion 92.

Claims

1. A printing fixture base, characterized in that: It includes a cover plate and a base. A vacuum chamber is provided on the top surface of the base. The cover plate is detachably disposed on the top surface of the base. The cover plate is used to accommodate a PCB board. Two sets of vacuum pipelines are provided inside the cover plate.

2. The printing fixture base according to claim 1, characterized in that: The cover plate is mounted on the base via a magnet, and the magnet is mounted on the top surface of the base.

3. The printing fixture base according to claim 1, characterized in that: The base is provided with a first vacuum connection end and a second vacuum connection end on both sides respectively.

4. A printing fixture base according to claim 1, characterized in that: The vacuum pipeline includes a first vacuum port and a second vacuum port, the first vacuum port being arranged in a matrix and the second vacuum port being arranged in a matrix.

5. A printing fixture base according to claim 1, characterized in that: The top surface of the cover plate is provided with a pressing spring for pressing the PBC plate.

6. A printing fixture base according to claim 5, characterized in that: The pressing spring is fixed by a rotating shaft. The pressing spring includes an arc-shaped part, and the front end of the arc-shaped part has an elastic protrusion.

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