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CN-224223447-U - Device for improving resin grinding copper surface crush injury

CN224223447UCN 224223447 UCN224223447 UCN 224223447UCN-224223447-U

Abstract

The utility model relates to the technical field of PCB production, and discloses a device for improving resin grinding copper surface crush injury, which is used for resin grinding equipment, wherein the resin grinding equipment comprises a grinding wheel, a back pressure wheel and a conveying platform for conveying a circuit board, the grinding wheel sets up in the top or the below of back pressure wheel, and conveying platform sets up between grinding wheel and back pressure wheel, is provided with the transportation position that is used for bearing the circuit board on the conveying platform. The device includes sprinkler bead and water supply ware, and the sprinkler bead is located between grinding miller and the back pressure wheel, and the sprinkler bead sets up in one side of delivery platform width direction and goes out the transportation position setting towards delivery platform, and the income water end intercommunication water supply ware of sprinkler bead water supply end. Compared with the prior art, the device provided by the utility model has the advantages that the foreign matters such as copper scraps left on the plate surface are washed away by utilizing a water flow directional washing mode, so that the problem of poor cleaning effect of the copper scraps in the prior art is solved.

Inventors

  • Ge Linming
  • XIE MINGYUN
  • CHEN XINGWU

Assignees

  • 广州广合科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250424

Claims (10)

  1. 1. The device for improving resin grinding copper surface crush injury is characterized by comprising grinding wheels (101), back pressure wheels (102) and a conveying platform (100) for conveying a circuit board, wherein the grinding wheels (101) are arranged above or below the back pressure wheels (102), the conveying platform (100) is arranged between the grinding wheels (101) and the back pressure wheels (102), a conveying position for bearing the circuit board is arranged on the conveying platform (100), the device for improving resin grinding copper surface crush injury comprises a water spray head (1) and a water supply device (2), the water spray head (1) is arranged between the grinding wheels (101) and the back pressure wheels (102), the water spray head (1) is arranged at one side part of the width direction of the conveying platform (100) and is arranged with water outlet facing the conveying position of the conveying platform (100), and the water inlet end of the water spray head (1) is communicated with the water supply end of the water supply device (2).
  2. 2. Device for improving resin-ground copper surface crushing according to claim 1, characterized in that the sprinkler head (1) is rotated by 5 ° -50 ° in a direction approaching the grinding wheel (101) with reference to the length direction of the back pressure wheel (102).
  3. 3. The device for improving resin-ground copper surface crush injury according to claim 1, further comprising a telescopic water pipe (3), wherein the sprinkler head (1) is communicated with a water supply end of the water supply device (2) through the telescopic water pipe (3).
  4. 4. A device for improving resin-ground copper surface crush injury according to claim 3, characterized in that the telescopic water pipe (3) is a metal bellows.
  5. 5. The apparatus for improving crush injury of resin-polished copper surface according to claim 1, wherein a plurality of said water sprayers (1) are provided, and a plurality of said water sprayers (1) are provided at intervals.
  6. 6. The apparatus for improving resin-polished copper surface crush injury according to claim 5, wherein the water outlet directions of the plurality of water sprayers (1) are uniform.
  7. 7. Device for improving resin-ground copper surface pressure wounds according to claim 1, characterised in that the water supply end of the water supply (2) is provided with a throttle valve (4), the sprinkler head (1) communicating with the water supply end of the water supply (2) through the throttle valve (4).
  8. 8. The apparatus for improving resin-ground copper surface crushing according to claim 1, further comprising a head positioning member (5), the sprinkler head (1) being fixed to a side portion of the delivery platform (100) by the head positioning member (5).
  9. 9. The device for improving resin grinding copper surface crush injury according to claim 8, wherein the spray head positioning piece (5) comprises a rotary connecting piece (51), a positioning connecting piece (52) and a U-shaped piece (53) which is arranged upside down, one end of the rotary connecting piece (51) is fixedly connected with a first end part of the U-shaped piece (53), the other end of the rotary connecting piece is rotatably connected with the side part of the conveying platform (100), one end of the positioning connecting piece (52) is fixedly connected with a second end part of the U-shaped piece (53), the other end of the positioning connecting piece is slidably connected with a sliding groove (105) which is formed in advance in the conveying platform (100), and the inner wall of the U-shaped piece (53) is fixedly connected with the spray head (1).
  10. 10. Device for improving resin-ground copper surface crush injury according to claim 8, characterized in that the nozzle positioning member (5) is a tie.

Description

Device for improving resin grinding copper surface crush injury Technical Field The utility model belongs to the technical field of PCB production, and particularly relates to a device for improving resin grinding copper surface crush injury. Background In the printed circuit board manufacturing industry, resin grinding is a critical link in the production process, and plays a decisive role in the flatness and surface quality of the circuit board. The resin grinding process generally comprises the steps of continuously conveying the circuit board by adopting a conveying platform, grinding the circuit board when the circuit board is conveyed to the grinding wheel, and providing stable pressure for the circuit board by a back pressure wheel arranged at the rear side of the grinding wheel during the process, so as to ensure uniform contact between the grinding wheel and the circuit board, and improve grinding effect and grinding quality. The grinding wheel can produce a large amount of copper scraps in the process of polishing the circuit board, if the tiny copper scraps are not timely and effectively washed away, the copper scraps can be accumulated on the board surface, and when the circuit board with the copper scraps passes through the back pressure wheel, the copper scraps can be tightly pressed on the surface of the circuit board by the high pressure transmitted by the back pressure wheel, and the surface of the circuit board is easily left with indentation or crush injury, so that the overall quality and reliability of the circuit board are affected. In the prior art, a water spray head is vertically and vertically arranged between the grinding wheel and the back pressure wheel so as to wash away copper scraps, the copper scraps are dispersed from the center of the water spray head to the periphery in the flushing process of the water spray head, the copper scraps flushing and cleaning effects are poor, and part of copper scraps are extruded to a circuit board by the back pressure wheel, so that the surface of the circuit board is left with an indentation or a crush injury. Disclosure of utility model The utility model provides a device for improving resin grinding copper surface crush injury, which is used for solving the problem of poor copper scrap cleaning effect in the prior art. In order to achieve the above object, the present utility model provides the following technical solutions: The device for improving the resin grinding copper surface crush injury comprises a water spray head and a water supply device, wherein the water spray head is positioned between the grinding wheel and the back pressure wheel, the water spray head is arranged at one side part of the width direction of the conveying platform and is arranged towards the conveying position of the conveying platform, and the water inlet end of the water spray head is communicated with the water supply end of the water supply device. According to the technical scheme, in the water supply process of the water feeder to the sprinkler bead, the water column falls into the circuit board carried by the conveying plane from a high position and splashes and rebounds, and the sprinkler bead is arranged at one side part of the width direction of the conveying platform and the water outlet faces the conveying plane of the conveying platform, so that a certain lateral angle exists between the water column spraying direction and the circuit board, and on the basis of the lateral angle, the direction of the water column impact splash rebound faces the other side part of the conveying platform instead of being diffused all around, so that foreign matters such as copper scraps remained on the plate surface can be directionally removed, and the problem that the cleaning effect of the copper scraps is poor in the prior art is solved. Preferably, the sprinkler head rotates by 5-50 degrees toward the direction approaching the grinding wheel with reference to the length direction of the back pressure wheel. Through above-mentioned technical scheme, through adjusting the angle between sprinkler bead and the grinding miller, make rivers direction and back pressure wheel be on a back of the body mutually, metal chip flows conveying platform along the direction that the water flow kept away from the back pressure wheel to avoid metal chip to flow to the back pressure wheel, and then improved clean effect. Preferably, the utility model also comprises a telescopic water pipe, the water spray head passes through the telescopic water delivery pipe the water supply end of the water supply device is communicated. Through above-mentioned technical scheme, the sprinkler bead is carrying out the in-process of position control, and the unavoidable pipeline that leads to the fact is pulled its supply line, adopts flexible raceway as the supply line of sprinkler bead, can effectively overcome above-mentioned problem. Preferably, the telescopic water pipe is a metal corrugat