CN-122002677-A - Pre-stacked wire PP placing table grounding static electricity removing device and method

CN122002677ACN 122002677 ACN122002677 ACN 122002677ACN-122002677-A

Abstract

The invention discloses a pre-stacked wire PP placing table grounding static eliminating device and method, and belongs to the technical field of static eliminating. The device comprises at least one grounding conductor, wherein a first end of the grounding conductor is electrically connected with the PP placement table, and a second end of the grounding conductor is electrically connected with the grounding body. The method includes electrically connecting a ground conductor to the PP landing and grounding the ground conductor to conduct static electricity to ground. According to the invention, the grounding conductor is additionally arranged on the automatic pre-stacking line PP placing table, static electricity generated in the PP sheet conveying process is directly led into the ground, so that electrostatic adsorption force is effectively eliminated, PP sheet adhesion, offset, multi-taking or missing taking are avoided, abnormal machine shutdown is reduced, and pre-stacking line operation efficiency and product yield are improved. And the device is matched with an ion wind generating device to realize double static electricity removing effect.

Inventors

TANG SHUNPING
WANG GUO
LI HUA
XIAO ZHISHENG

Assignees

泰和电路科技（惠州）有限公司

Dates

Publication Date: 20260508
Application Date: 20260319

Claims (9)

1. The utility model provides a platform ground connection destatics device is placed to line PP that stacks in advance is applied to automatic line that stacks in advance, automatic line that stacks in advance includes ion wind generating device, its characterized in that includes: And the first end of the grounding conductor is electrically connected with the PP placing table, and the second end of the grounding conductor is used for being electrically connected with the grounding body so as to guide static electricity on the PP placing table into the ground.
2. The pre-stack line PP placement table grounding static electricity removing device of claim 1, wherein the grounding conductor comprises a grounding wire, a grounding copper bar, or a grounding flat steel.
3. The pre-stack line PP placement table grounding static electricity removing device of claim 1, wherein the first end of the grounding conductor is fixedly connected to a metal frame or a preset grounding connection point of the PP placement table.
4. The pre-stack line PP placement table grounding static-eliminating device of claim 1, wherein at least a partial area of the PP placement table is made of an anti-static material, and the anti-static material is electrically connected with the grounding conductor.
5. The pre-stack line PP placement table grounding static electricity removing device according to claim 1, wherein the second end of the grounding conductor is provided with a grounding connection piece, and the grounding connection piece is a grounding clip, a grounding terminal, a welding point or a bolt connection structure.
6. The pre-stack line PP placement table grounding static eliminator of claim 1, wherein the connection point of the grounding conductor and the PP placement table is located on the material taking side or the material discharging side of the PP placement table.
7. The pre-stack line PP placement table grounding static-removing device of claim 1, wherein at least a portion of the section of the grounding conductor has a visual identification to indicate a static discharge path.
8. The method for removing static electricity from the pre-stacked wire is applied to an automatic pre-stacked wire, and the automatic pre-stacked wire comprises an ion wind generating device and a PP placing table, and is characterized by comprising the following steps of: one end of a grounding conductor is electrically connected with the PP placing table, and the other end of the grounding conductor is grounded; In the automatic pre-stacking line operation process, static electricity generated by carrying the PP sheet on the PP placing table is conducted to the ground through the grounding conductor.
9. The method of claim 8, further comprising performing static removal of the sheet material or the PP sheet at the inlet of the auto-pre-stack by the ion wind generating device in synchronization with the static removal of the PP placement table by the ground conductor.

Description

Pre-stacked wire PP placing table grounding static electricity removing device and method Technical Field The invention relates to the technical field of static electricity elimination, in particular to a PP (polypropylene) placing table grounding static electricity eliminating device and method applied to PCB lamination automatic pre-stacking lines, which are particularly suitable for eliminating static electricity generated in an automatic conveying process of PP sheets (prepregs). Background In the PCB (printed circuit board) lamination process, an auto-prestack line is used to automatically laminate a core board (inner layer board) and a PP sheet (prepreg) in a prescribed order. In the process, a large amount of static electricity is generated by friction, separation and contact of PCB plates and PP sheets in the links of automatic transmission, suction, stacking and the like. The existence of static electricity can directly damage the prestack precision, cause lamination defects (such as interlayer slippage and holes), even affect the cleanliness of a dust-free room and the running stability of equipment, and finally lead to the great reduction of the yield of products. In the prior art, an ion wind rod (ion wind generating device) is usually arranged at the inlet of a plate material feeding area of a pre-stacking line, and static electricity on the surface of the plate material is neutralized by blowing out ion wind. However, in the PP placement area, static electricity is still generated between the PP pieces and the placement table and between the PP pieces due to relative movement when the mechanical arm/suction cup sucks the PP pieces. The generated static electricity can generate adsorption force between the core plate and the PP sheets, and when the automatic mechanical arm/conveying system takes and stacks, the situation that sheets are adhered and offset, or even PP sheets are taken more/missed. In addition, electrostatic adsorption can also cause that the plate material is stuck on the sucker and cannot fall off, or the plate material cannot be stably placed after material taking, material clamping and line blocking are caused, so that the automatic production line needs manual intervention, the efficiency is reduced, and the risk of human pollution is increased. Disclosure of Invention The invention aims to solve the problems in the prior art, and provides the device and the method for removing static electricity of the PP placing table in the grounding mode, which have simple structure and obvious effect, so that static electricity generated by the PP sheet in the placing area is removed, and the running stability of the automatic pre-stacked line is improved. In order to achieve the above purpose, the invention provides a pre-stacked wire PP placing table grounding static electricity removing device which is applied to an automatic pre-stacked wire, wherein the automatic pre-stacked wire comprises an ion wind generating device. The grounding static electricity removing device comprises at least one grounding conductor, wherein the first end of the grounding conductor is electrically connected with the PP placing table, and the second end of the grounding conductor is electrically connected with the grounding body so as to guide static electricity on the PP placing table into the ground. Through setting up independent ground connection route of releasing at the PP and placing the platform, can lead into the earth with the static that the PP piece produced because of the friction in real time, avoid static accumulation. Further, the grounding conductor comprises a grounding wire, a grounding copper bar or a grounding flat steel. Different conductor forms can be adapted to different installation spaces and grounding requirements, for example flexible grounding wires facilitate wiring in confined spaces, copper bars or flat steels have lower electrical resistance and higher mechanical strength. Further, the first end of the grounding conductor is fixedly connected to a metal frame or a preset grounding connection point of the PP placement table. The metal frame has good conductivity and can be directly used as a connecting point, and the preset grounding connecting point (such as a grounding bolt and a grounding column) is convenient for standardized installation and later maintenance. Further, at least a partial region of the PP placement table is made of an antistatic material, and the antistatic material is electrically connected with the ground conductor. The antistatic material (such as antistatic rubber and antistatic acrylic) can rapidly conduct static charges on the surface of the table top to the grounding conductor, and prevent the static charges from accumulating on the local part of the table top. Further, the second end of the grounding conductor is provided with a grounding connecting piece, and the grounding connecting piece is a grounding clamp, a grounding terminal, a welding