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CN-122006943-A - Anti-solidification device for glue spraying head of electronic product coating equipment

CN122006943ACN 122006943 ACN122006943 ACN 122006943ACN-122006943-A

Abstract

The invention relates to an anti-solidification device of a glue spraying head of electronic product coating equipment, which comprises an outer cup and an inner cup arranged in the outer cup, wherein the cup opening of the inner cup is lower than the cup opening of the outer cup, a feed hole is formed in the bottom of the inner cup, a reflux hole is formed in the bottom of the outer cup, the reflux hole is communicated with a solvent storage tank through a reflux pipe, the feed hole is connected to the solvent storage tank through a feed pipe, the feed pipe conveys solvent in the solvent storage tank to the inner cup through a feed conveying unit, the feed conveying unit comprises a base and a rotor matched with the base, the rotor is arranged on a main shaft of a stepping motor, the base is provided with an arc-shaped groove, the cross section of the rotor is in an equilateral triangle shape, rolling wheels for extruding the feed pipe are respectively arranged at three vertex positions, auxiliary pressing columns are radially arranged on the three sides, and gaps for the feed pipe to pass through are formed between the rotor and the arc-shaped groove on the base. The roller and the collet are matched to extrude the feed pipe to provide conveying power for the solvent in the feed pipe, and a group of roller and the collet are always kept in an extruding state for the feed pipe when the machine is stopped.

Inventors

  • ZHANG JUN

Assignees

  • 欧朗电子科技有限公司

Dates

Publication Date
20260512
Application Date
20260327

Claims (8)

  1. 1. The anti-solidification device for the glue spraying head of the electronic product coating equipment is characterized in that a soaking component (3) is arranged below a movement track of the glue spraying head (1), the soaking component (3) comprises an outer cup (32) and an inner cup (31) arranged in the outer cup, the cup opening of the inner cup (31) is lower than that of the outer cup (32), a feeding hole (33) is formed in the bottom of the inner cup (31), a backflow hole (34) is formed in the bottom of the outer cup (32), the backflow hole (34) is communicated with a solvent storage tank (4) through a backflow pipe (7), the feeding hole (33) is connected to the solvent storage tank (4) through a feeding pipe (5), the feeding pipe (5) conveys solvent in the solvent storage tank (4) to the inner cup (31) through a feeding conveying unit (6), the feeding conveying unit (6) comprises a bottom bracket (64) and a rotor (61) matched with the bottom bracket, the rotor (61) is arranged on a main shaft of a stepping motor, the bottom bracket (64) is provided with an arc-shaped groove, the cross section of the rotor (61) is in an equilateral triangle, the three-shaped top points are respectively provided with three auxiliary feeding pipes (62) and the three radial feeding pipes (62) are arranged between the bottom brackets (61) and the three feeding pipes (63) along the radial directions.
  2. 2. The device for preventing the glue spraying head of the electronic product coating equipment from being solidified according to claim 1, wherein the auxiliary pressing column (63) is in a dislocation state with the pressing wheel (62) in the axial direction.
  3. 3. The device for preventing the glue spraying head of the electronic product coating equipment from being solidified according to claim 1, wherein the arc included angle of the arc-shaped groove on the base (64) is larger than 120 degrees.
  4. 4. The device for preventing the glue spraying head of the electronic product coating equipment from being solidified according to claim 3, wherein the arc included angle of the arc-shaped groove on the base bracket (64) is 130 degrees.
  5. 5. The device for preventing the glue spraying head of the electronic product coating equipment from being cured according to claim 1, wherein the stepping motor is electrically connected with the timing controller.
  6. 6. The apparatus of claim 5, wherein the timing controller is a programmable time relay.
  7. 7. The device for preventing the glue spraying head of the electronic product coating equipment from being cured according to claim 1, wherein the inner diameter of the inner cup (31) is 5mm larger than the outer diameter of the head of the glue spraying head (1), and the cup mouth of the outer cup (32) is 2-3 mm higher than the cup mouth of the inner cup (31).
  8. 8. The device for preventing the glue spraying head of the electronic product coating equipment from being cured according to claim 1, wherein the rolling wheel (62), the bottom support (64) and the auxiliary pressing column (63) are made of Teflon, and the parts, which are contacted with the feed pipe (5), of the rolling wheel (62) and the auxiliary pressing column (63) are adhered with wear-resistant rubber pads.

Description

Anti-solidification device for glue spraying head of electronic product coating equipment Technical Field The invention relates to an anti-solidification device of a glue spraying head of electronic product coating equipment. Background The coating equipment widely uses acrylic acid solvent type glue to carry out spraying operation, and the glue has the characteristic of being volatile, so that when the equipment sprays gaps, the glue is easy to remain at the nozzle of the glue spraying head. The residual glue is easy to solidify after being exposed in the air, so that the problems of abnormal spraying precision, poor spraying effect and the like of the glue spraying head are further affected, and the normal operation of equipment is affected. In order to solve the problems, the method adopted before is that when the equipment is not sprayed, the glue spraying head is automatically soaked in a cup at the fixed position of the equipment, a solvent capable of dissolving the residual glue in the glue spraying head is filled in the cup, and the glue spraying head is prevented from being solidified by soaking. However, the cup has the obvious defects that the solvent in the cup belongs to extremely volatile liquid, the liquid level of the solvent can continuously drop along with the use time, when the liquid level is lower than the head of the glue spraying head, the glue spraying head cannot be effectively soaked, the solidification is prevented from failure, the problem of residual solidification of glue still can occur, and the normal use of the glue spraying head cannot be fundamentally ensured. Aiming at the problems that the solvent is easy to volatilize and the liquid level can not be maintained in the existing coating equipment glue spraying head anti-curing scheme, so that protection is invalid and the like, the development of the electronic product coating equipment glue spraying head anti-curing device is needed. Disclosure of Invention The invention aims to overcome the defects in the prior art, and provides an anti-solidification device for a glue spraying head of electronic product coating equipment, which can automatically supplement solvent, maintain stable liquid level, ensure equipment spraying precision and effect and reduce equipment maintenance time. The aim of the invention is achieved by the following technical scheme: The glue spraying head solidification preventing device of the electronic product coating equipment is characterized in that a soaking component is arranged below a movement track of the glue spraying head and comprises an outer cup and an inner cup arranged in the outer cup, the cup opening of the inner cup is lower than that of the outer cup, a feeding hole is formed in the bottom of the inner cup, a backflow hole is formed in the bottom of the outer cup and is communicated with a solvent storage tank through a backflow pipe, the feeding hole is connected to the solvent storage tank through a feeding pipe, the feeding pipe conveys solvent in the solvent storage tank to the inner cup through a feeding conveying unit, the feeding conveying unit comprises a collet and a rotor matched with the collet, the rotor is arranged on a main shaft of a stepping motor, the collet is provided with an arc-shaped groove, the cross section of the rotor is in an equilateral triangle shape, rolling wheels for extruding the feeding pipe are arranged at three vertex positions, auxiliary pressing columns are radially protruding arranged on the three sides, and gaps for the feeding pipe to penetrate through are formed between the rotor and the arc-shaped groove on the collet. Further, the glue spraying head solidification preventing device of the electronic product coating equipment is characterized in that the auxiliary pressing column is in a dislocation state with the roller in the axial direction. Further, the glue spraying head solidification preventing device of the electronic product coating equipment, wherein the arc included angle of the arc-shaped groove on the collet is larger than 120 degrees. Further, the glue spraying head solidification preventing device of the electronic product coating equipment comprises an arc-shaped included angle of 130 degrees, wherein the arc-shaped included angle is formed by arc-shaped grooves on the base. Further, the glue spraying head anti-solidification device of the electronic product coating equipment is characterized in that the stepping motor is electrically connected with the timing controller. Further, the glue spraying head anti-solidification device of the electronic product coating equipment is characterized in that the timing controller is a programmable time relay. Further, the electronic product coating equipment spouts gluey head anti-solidification device, wherein, the internal diameter of interior cup is greater than spouting gluey head external diameter 5mm, and the rim of a cup of outer cup is higher than the rim of a cup of interior