Roller mechanism of coating machine

Abstract

The utility model provides a roller mechanism of a coating machine. The roller mechanism comprises a roller, the coating head is arranged above the roller, and a light resistor is arranged in the coating head; the scraper assembly is arranged on one side of the rolling wheel and comprises a blade, a clamp and a fixing piece, a long-strip-shaped groove is formed in one side face of the clamp, a waste outlet is formed in the groove, a plurality of bolts are arranged on the upper end face of the clamp, one end of each bolt penetrates through the clamp and extends into the groove, the fixing piece is arranged in the groove, and a plurality of channels are formed in one side of the fixing piece. The channel is communicated with the waste outlet, the back of the blade is arranged in the groove, one side of the fixing piece abuts against the blade, one end of the bolt abuts against the fixing piece in a locked mode, and the cutting edge of the blade makes contact with one side of the rolling wheel. And the wetting tank is arranged below the roller. The roller mechanism of the coating machine is simple in structure and convenient to operate, the scraping effect of the roller can be improved, and product abnormity caused by the fact that residual photoresist on the roller reversely pollutes a coating head is avoided.

Description

Technical Field

[0001] This utility model relates to the field of glass substrate coating technology, and in particular to a roller mechanism of a coating machine. Background Technology

[0002] The roller mechanism of a coating machine is a pre-treatment mechanism for the coating head before photoresist is applied to the glass substrate. This ensures the uniformity of the photoresist on the coating head's blade edge before the photoresist is applied to the glass. This ensures the uniformity of the photoresist before coating. The removal effect of the photoresist on the roller directly affects the stability of the next substrate's cutting. If the removal effect is poor, the photoresist on the roller is prone to sticking back to the coating head, causing the product's cutting vertical murmur and cutting characteristics to deviate. Ensuring that the photoresist on the roller is cleanly removed is directly related to the uniformity of the roller's blade adjustment.

[0003] Currently, the adjustment of the scraper on the roller is affected by factors such as the adjustment method and the personnel involved. Furthermore, the existing scraper blades are fixed using a method of evenly distributed 29-point locking (e.g., ...). Figure 1 As shown, by evenly distributing fixing plates 2' on the blade 1', and fixing each fixing plate 2' with bolts 3', the fixing method of point locking will cause different pressures on each area when the blade 1' is fixed, resulting in poor uniformity of the scraper, causing light obscuration residue on the roller, poor reproducibility of the state after each adjustment, and poor uniformity of the scraper. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a roller mechanism for a coating machine that is simple in structure and easy to operate, which can improve the scraping effect of the roller and avoid residual photoresist on the roller from contaminating the coating head and causing product abnormalities.

[0005] This utility model is implemented as follows: a roller mechanism for a coating machine, comprising...

[0006] A roller, driven to roll by a drive device;

[0007] A coating head is positioned above the roller, and a photoresist is installed inside the coating head;

[0008] A scraper assembly is disposed on one side of the roller, comprising a blade, a clamp, and a fixing plate. One side of the clamp has an elongated groove with a waste outlet. The upper surface of the clamp has several bolts, one end of which passes through the clamp and extends into the groove. The fixing plate is elongated and disposed within the groove. One side of the fixing plate has several channels communicating with the waste outlet. The back of the blade is disposed within the groove, and the fixing plate rests against the blade on one side of the channels. One end of the bolts is locked against the fixing plate. The cutting edge of the blade contacts one side of the roller.

[0009] A wetting tank is disposed below the roller and contains a solvent inside. The lower part of the roller is located in the wetting tank and immersed in the solvent.

[0010] A waste bin is located below the waste outlet.

[0011] Furthermore, it also includes a blade holder on which the scraper assembly is mounted.

[0012] Furthermore, the solvent is PGMEA.

[0013] The advantages of this invention are as follows: By setting a long, narrow fixing plate on the scraper to press and lock the blade, the pressure on the blade during fixing is more uniform, resulting in better contact between the blade and the roller. A channel is provided on the fixing plate, and a waste outlet is provided in the groove, allowing the scraped waste to flow out more effectively through the channel and waste outlet. A solvent is provided in the wetting tank to better dissolve the photoresist and lubricate the blade, enabling the blade to more effectively scrape the photoresist off the roller. This invention is a simple and easy-to-operate roller mechanism for a coating machine, which improves the roller scraping effect and prevents residual photoresist on the roller from back-contaminating the coating head and causing product abnormalities. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the existing scraper distribution point-locking structure.

[0016] Figure 2 This is a side view of the roller mechanism of a coating machine according to the present invention.

[0017] Figure 3 This is a schematic diagram of the scraper assembly of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the fixture of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the fixing piece of this utility model.

[0020] The following are the reference numerals: Blade 1', Fixing plate 2', Bolt 3', Roller mechanism 100, Roller 1, Coating head 2, Scraper assembly 3, Blade 31, Clamp 32, Groove 321, Waste outlet 322, Bolt 323, Fixing plate 33, Channel 331, Wetting tank 4, Solvent 41, Waste bin 5, Blade holder 6. Detailed Implementation

[0021] Please see Figures 2 to 5 As shown, the present invention discloses a roller mechanism 100 for a coating machine, comprising a roller 1, a coating head 2, a scraper assembly 3, a wetting tank 4, and a waste bin 5.

[0022] The roller 1 is driven to roll by a drive device, which is a motor (not shown).

[0023] The coating head 2 is positioned above the roller 1, and a light resist is provided inside the coating head 2.

[0024] The scraper assembly 3 is disposed on one side of the roller 1, and includes a blade 31, a clamp 32, and a fixing plate 33. One side of the clamp 32 has an elongated groove 321, within which a waste outlet 322 is provided. The upper surface of the clamp 32 is provided with several bolts 323, one end of which passes through the clamp 32 and extends into the groove 321. The fixing plate 33 is an elongated structure and is disposed within the groove 321. One side of the fixing plate 33 has several channels. 331, the channel 331 is connected to the waste outlet 322, the back of the blade 31 is disposed in the groove 321, and the fixing plate 33 is located on one side of the channel 331 and abuts against the blade 31. One end of the bolt 323 is locked and abuts against the fixing plate 33. The bolt 323 is tightened by locking the bolt 323 to press the fixing plate 33, and the fixing plate 33 presses the blade 31 to fix the blade 31 in the clamp 32. The cutting edge of the blade 31 contacts one side of the roller 1.

[0025] The wetting tank 4 is located below the roller 1 and contains a solvent 41, which is PGMEA. The lower part of the roller 1 is located in the wetting tank 4 and immersed in the solvent 41. By placing the solvent 41 in the wetting tank 4, the photoresist can be better dissolved and the blade 31 can be lubricated, so that the blade 31 can better scrape off the photoresist on the roller 1, and the roller 1 can better perform the next pretreatment on the coating head 2, ensuring the uniformity of the photoresist on the edge of the coating head 2.

[0026] The waste bin 5 is located below the waste outlet 322. The solvent 41 and photoresist driven by the rotation of the roller 1 will be scraped by the blade 31 and enter the waste bin 5 along the entry channel 331 on one side of the fixing plate 33. Then, they enter the waste bin 5 from the waste outlet 322.

[0027] The roller mechanism 100 also includes a blade holder 6, on which the scraper assembly 3 is disposed, and the blade holder 6 is used to fix the scraper assembly 3.

[0028] Workflow: First, the roller 1 is driven to rotate by the drive device to discard the photoresist on the cutting edge of the coating head 2, so that the photoresist on the cutting edge of the coating head 2 is adhered to the roller 1. Then, the photoresist on the treated coating head 2 is coated onto the glass substrate to ensure the uniformity of the photoresist on the cutting edge of the coating head 2 before coating. The photoresist adhered to the roller 1 will be immersed in the solvent 41 in the wetting tank 4 along with the roller 1. The rotation of the roller 1 causes the solvent 41 and photoresist to be scraped by the blade 31 and enter the inlet channel 331 on one side of the fixing plate 33. Finally, it enters the waste bin 5 from the waste outlet 322. It is simple and convenient. The blade 31 is pressed and locked by the long strip-shaped fixing plate 33, so that the pressure on the blade 31 is more uniform when it is fixed, and the contact uniformity between the blade 31 and the roller 1 is better.

[0029] This invention utilizes a long, narrow fixing plate 33 on the scraper assembly 3 to press and lock the blade 31, resulting in more uniform pressure on the blade 31 during fixation and improved contact uniformity between the blade 31 and the roller 1. A channel 331 is provided on the fixing plate 33, and a waste outlet 322 is provided within the groove 321, allowing scraped waste to flow out more effectively through the channel 331 and the waste outlet 322. Solvent 41 is provided in the wetting tank 4 to better dissolve the photoresist and lubricate the blade 31, enabling the blade 31 to more effectively scrape the photoresist off the roller 1. This invention provides a simple and easy-to-operate roller mechanism for a coating machine, improving the scraping effect of the roller and preventing residual photoresist on the roller from back-contaminating the coating head and causing product abnormalities.

[0030] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A roller mechanism for a coating machine, characterized in that: include A roller, driven to roll by a drive device; A coating head is positioned above the roller, and a photoresist is installed inside the coating head; A scraper assembly is disposed on one side of the roller, comprising a blade, a clamp, and a fixing plate. One side of the clamp has an elongated groove with a waste outlet. The upper surface of the clamp has several bolts, one end of which passes through the clamp and extends into the groove. The fixing plate is elongated and disposed within the groove. One side of the fixing plate has several channels communicating with the waste outlet. The back of the blade is disposed within the groove, and the fixing plate rests against the blade on one side of the channels. One end of the bolts is locked against the fixing plate. The cutting edge of the blade contacts one side of the roller. A wetting tank is disposed below the roller and contains a solvent inside. The lower part of the roller is located in the wetting tank and immersed in the solvent. A waste bin is located below the waste outlet.

2. The roller mechanism of a coating machine as described in claim 1, characterized in that: It also includes a blade holder on which the scraper assembly is mounted.

3. The roller mechanism of a coating machine as described in claim 2, characterized in that: The solvent is PGMEA.

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