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CN-117621477-B - Method for positioning and fixing film on glass

CN117621477BCN 117621477 BCN117621477 BCN 117621477BCN-117621477-B

Abstract

The invention provides a method for positioning and fixing a film on glass, which comprises a glass conveying device, a film covering device and a positioning and fixing device, wherein the positioning and fixing device is positioned above a second station and comprises a film position detection mechanism, a film position adjustment mechanism and a film position fixing mechanism, the film position adjustment mechanism comprises four suckers, and the four suckers are respectively positioned above four corners of the film. In the method, the four suckers are adjusted to enable the four corners of the film to be slightly separated from the glass, and the film is driven to slide on the glass by moving the positions of the four suckers under the state that most of the film is covered on the glass, so that no air enters between the film and the glass, and the method has the advantages of ensuring that the film on the glass is kept flat after the position adjustment and no bubbles and wrinkles are generated.

Inventors

  • GAO JIAWEI
  • HU CHENJIE

Assignees

  • 苏州三熙智能科技有限公司

Dates

Publication Date
20260512
Application Date
20231220

Claims (9)

  1. 1. The method for positioning and fixing the film on the glass comprises a glass conveying device, a film covering device and a positioning and fixing device, wherein the glass conveying device is provided with a first station and a second station along the conveying direction of the glass, the film covering device is positioned above the first station, and the positioning and fixing device is positioned above the second station and comprises a film position detecting mechanism, a film position adjusting mechanism and a film position fixing mechanism, and the method comprises the following steps: s1, conveying glass to the first station by the glass conveying device; s2, covering the film on the glass by the film covering device at the first station; S3, the glass conveying device conveys the glass coated with the film to the second station; S4, in the second station, the film position detection mechanism, the film position adjustment mechanism and the film position fixing mechanism sequentially detect, adjust and fix the position of the film on the glass, and are characterized in that: The film position adjusting mechanism comprises four suckers, the four suckers are respectively positioned above four corners of the film, in the step S4, the four suckers are used for sucking up the four corners of the film and slightly separating the four corners from the glass, and in the state that the film is mostly covered on the glass, the four suckers are moved to drive the film to slide on the glass.
  2. 2. The method of positioning and fixing a thin film on glass according to claim 1, wherein the thin film position adjusting mechanism further comprises four translation driving devices, each of the translation driving devices is provided with one of the suckers, each of the translation driving devices comprises a transverse linear module for driving the suckers to move transversely and a longitudinal linear module for driving the suckers to move longitudinally, each of the translation driving devices independently drives the suckers arranged on the glass to translate, and the positions of the four suckers relative to each other are not changed in the translation process.
  3. 3. The method of positioning and fixing a film on a glass as recited in claim 2 wherein said film position adjustment mechanism further comprises a lift module for lifting said four suction cups, said four translational drive devices being mounted on said lift module.
  4. 4. The method for positioning and fixing a thin film on a glass according to claim 1, wherein in step S2, the film coating apparatus pulls and places the thin film on the upper surface of the glass by pinching one side edge of the thin film.
  5. 5. The method for positioning and fixing a film on glass according to claim 1, wherein a rolling exhaust device is further arranged between the film covering device and the positioning and fixing device, the glass conveying device passes through the rolling exhaust device in the process of conveying the film-covered glass from the first station to the second station, and the rolling exhaust device smoothes the film and extrudes air between the film and the glass in a mode of rolling the film on the film by using a pressing roller.
  6. 6. The method of positioning and fixing a film on a glass according to claim 1, wherein the film position fixing mechanism is a plurality of ultrasonic welding guns distributed over the second station, and in step S4, the position fixing is that the ultrasonic welding guns fix the film on the glass by ultrasonic spot welding.
  7. 7. The method for positioning and fixing a film on a glass according to claim 1, wherein said film position detecting means is constituted by four industrial cameras respectively located above four corner positions of said film, and in step S4, said position detecting means detects positions of four corners of said film photographed by said four industrial cameras to determine the position of said film on said glass.
  8. 8. The method of positioning and holding a film on glass as recited in claim 1 wherein said glass transfer device has glass positioning mechanisms for positioning said glass at said first station and said second station, respectively.
  9. 9. The method of positioning and holding a film on a glass as recited in claim 4 wherein said film coating apparatus pulls said film from a side of said glass delivery apparatus onto an upper surface of said glass.

Description

Method for positioning and fixing film on glass Technical Field The invention belongs to the technical field of solar cell module manufacturing equipment, and particularly relates to equipment for positioning and fixing an EVA adhesive film on a glass plate. Background The solar cell module is a core component for converting solar energy into electric energy in photovoltaic power generation, wherein an EVA adhesive film is a key material for realizing packaging of the solar cell module. In the process of packaging the solar cell module, the manufacturer needs to position the EVA adhesive film because the double-glass cell module needs to seal and isolate water by using butyl adhesive, the EVA adhesive film is arranged in the butyl adhesive and the position accuracy of the EVA adhesive film is high, and the EVA adhesive film is fixed on glass because the friction force between the EVA adhesive film and photovoltaic glass is very small and the EVA adhesive film after positioning is displaced between the EVA adhesive film and glass in the process of conveying by a conveyor. The EVA adhesive film is positioned and fixed on the glass, and the steps of covering the glass with the film, exhausting, detecting the position of the EVA adhesive film on the glass, adjusting the position of the EVA adhesive film on the glass according to the detection result and fixing the EVA adhesive film on the glass are sequentially carried out. However, due to the soft and thin characteristics of the EVA film, it is a technical difficulty how to adjust the position of the EVA film on the glass, which is slightly careless and can easily cause the EVA film to be uneven on the glass, and bubbles and wrinkles easily occur. For example, in the prior art, manufacturers have tried to adjust the position of the EVA film by using several tens of suction cups to suck the EVA film integrally, and this method for adjusting the position is that the EVA film is separated from the glass, so that when the film is replaced by the glass after the position is adjusted, air enters between the film and the glass, and air enters into the EVA film, which is easy to generate bubbles and wrinkles, and finally the EVA film is not smooth enough on the glass. Disclosure of Invention The invention aims to solve the technical problem of providing a method for positioning and fixing a film on glass, which can ensure that air does not enter between the film and the glass to ensure that the film on the glass is flat and no bubbles and wrinkles appear when the position of an EVA film on the glass is adjusted. In order to solve the technical problems, the invention adopts the following technical scheme: The method for positioning and fixing the film on the glass comprises a glass conveying device, a film coating device and a positioning and fixing device, wherein the glass conveying device is provided with a first station and a second station along the conveying direction of the glass, the film coating device is positioned above the first station, and the positioning and fixing device is positioned above the second station and comprises a film position detection mechanism, a film position adjustment mechanism and a film position fixing mechanism, and comprises the following steps: s1, conveying glass to the first station by the glass conveying device; s2, covering the film on the glass by the film covering device at the first station; S3, the glass conveying device conveys the glass coated with the film to the second station; S4, in the second station, the film position detection mechanism, the film position adjustment mechanism and the film position fixing mechanism sequentially perform position detection, position adjustment and position fixing on the film on the glass: The film position adjusting mechanism comprises four suckers, the four suckers are respectively positioned above four corners of the film, in the step S4, the four suckers are used for sucking up the four corners of the film and slightly separating the four corners from the glass, and in the state that the film is mostly covered on the glass, the four suckers are moved to drive the film to slide on the glass. In the technical scheme, as only four suckers are used for sucking a plurality of corners of the film during position adjustment, only four corners of the film are slightly separated from glass, most of the main body of the film is covered on the glass, no gap exists between the film and the glass, and air cannot enter between the film and the glass. In a specific embodiment of the invention, the film position adjusting mechanism further comprises four translation driving devices, each translation driving device is correspondingly provided with one sucker, each sucker comprises a transverse linear module for driving the sucker to transversely move and a longitudinal linear module for driving the sucker to longitudinally move, each translation driving device independently drives the sucker arra