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Printing backflow jig

A jig and bottom plate technology, applied in the direction of printed circuit, printed circuit manufacturing, and assembling printed circuit with electrical components, can solve the problems of unsatisfactory printing effect, deformation of steel mesh, etc., to save working time, prevent PCB warpage, Good print quality

Pending Publication Date: 2020-04-28
APT ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the production process of the SMT production line, since the PCB and the jig are not on the same plane, the stencil will be lifted by the jig and deformed during printing, resulting in an unsatisfactory printing effect.

Method used

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  • Printing backflow jig

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1 to Figure 4 As shown, a printing reflow jig is provided in this embodiment, which includes a jig body 1 , a positioning device 2 and a slider 3 .

[0034] The jig body 1 is provided with a receiving groove 11 and a bottom plate 15 , and the bottom plate 15 can freely move up and down in the accommodating groove 11 , and at least two positioning through holes 14 are arranged on the surface of the jig body 1 .

[0035] As a preferred solution, the positioning device 2 includes a base 21 and a cover plate 22, the base 21 is placed under the jig body 1, and the base 21 is provided with several sensors 213 and controlled by the sensors 213. Pushing device, the sensor 213 is installed on the surface of the base 21, the positioning through hole 14 is provided with four and the installation position of the sensor 213 just corresponds to the position of the positioning through hole 14, the pushing device is located on the bottom plate 15 below.

[0036] Furth...

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PUM

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Abstract

The invention provides a printing backflow jig. The printing backflow jig comprises a jig body, a base, a cover plate and a sliding block. A PCB is placed on a bottom plate in a containing groove of the jig body, and the PCB is driven by the sliding block with a spring to be automatically fixed to the frame of the containing groove. When the cover plate is covered, a positioning column on the cover plate acts on a sensor arranged on the base, and a pushing device controlled by the sensor drives the PCB to automatically ascend. And when the PCB touches the cover plate and applies a reverse acting force to the cover plate, the sensor stops acting. At the moment, the PCB is flush with the surface of the jig. Printing of four PCBs can be completed at the same time, and the printing efficiencyis improved. In addition, the PCB can be automatically flush with the surface of the jig, deformation caused by the fact that a steel mesh is jacked up by a clamp in the printing process is avoided, limiting is firm and reliable, and the printing quality is improved.

Description

technical field [0001] The invention belongs to the field of semi-surface mount printing, and in particular relates to a printing reflow jig. Background technique [0002] SMT, also called surface mount technology, is a new generation of electronic assembly technology developed from hybrid integrated circuit technology. It is characterized by the use of component surface mount technology and reflow soldering technology, and has become a new generation of assembly technology in electronic product manufacturing. The wide application of SMT has promoted the miniaturization and multi-function of electronic products, and provided conditions for mass production and low defect rate production. [0003] However, in the production process of the SMT production line, since the PCB and the jig are not on the same plane, the stencil will be lifted by the jig and deformed during printing, resulting in an unsatisfactory printing effect. Contents of the invention [0004] The purpose of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/34
CPCH05K3/3494H05K2203/0165
Inventor 林仕强朱文敏万垂铭曾照明
Owner APT ELECTRONICS