Scraper for scraping residual photoresist on coating head

By designing a scraper structure with a planar coordinate moving mechanism and a universal connecting handle, the problem of insufficient adhesion between the scraper and the coating head during coating head cleaning was solved, achieving efficient photoresist cleaning and scraper surface cleaning.

CN223970219UActive Publication Date: 2026-03-06SHENZHEN METIS TECH CO LTD
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Patent Information

Application Number
CN202423323014.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-03-06
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

When cleaning residual photoresist, the existing coating head has insufficient adhesion between the squeegee and the coating head, resulting in incomplete cleaning and difficulty in cleaning the squeegee surface.

Method used

A scraper structure was designed, comprising a central fixture, a movable handle connector, a planar coordinate moving mechanism, a central elastic component, and a universal connecting handle. These components enable precise fitting and fine-tuning of the scraper and coating head, and, combined with a cleaning device, rapid cleaning of the scraper surface.

Benefits of technology

It improves the fit between the scraper and the coating head, ensuring cleaning quality and simplifying the cleaning process on the scraper surface. It has a simple structure and is easy to use.

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Abstract

The utility model discloses a scraper for scraping residual photoresist on a coating head, which comprises a middle jig, a movable handle connecting part is arranged on the middle jig, and a plane coordinate moving mechanism is arranged between the middle jig and the movable handle connecting part. A centering elastic assembly used for keeping the middle jig in the center of the movable handle connecting part is arranged in the plane coordinate moving mechanism, and a coordinate fine adjustment structure and a universal fine adjustment structure are arranged between the handheld part and the scraper, so that the attaching degree between the scraper and the coating head can be guaranteed in the handheld moving process. Position fine adjustment compensation is carried out on the scraper, the cleaning capacity of the scraper is improved, and meanwhile residual photoresist on the surface of the scraper can be rapidly cleaned.
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Description

Technical Field

[0001] This utility model relates to a coating head cleaning device, and in particular to a scraper for scraping off residual photoresist from the coating head. Background Technology

[0002] Residual adhesive on the coating head surface is cleaned using a reverse "V" shaped scraper with the same shape as the coating head. The scraper is held and scraped along the linear path of the coating head from beginning to end. However, it is difficult to keep the scraper parallel to the straight path of the coating head during hand movement. As a result, the adhesion between the scraper and the coating head is insufficient, the scraping is not clean, and the surface is difficult to clean after the scraper is used.

[0003] Therefore, the existing coating head needs further improvement. Utility Model Content

[0004] The purpose of this invention is to provide a scraper for removing residual photoresist from a coating head. This scraper allows for better contact between the scraper and the coating head during handheld movement, ensuring scraping quality, and also enables rapid cleaning of the scraper surface.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] A scraper for removing residual photoresist from a coating head includes a central fixture with a movable handle connection portion. A planar coordinate moving mechanism is provided between the central fixture and the movable handle connection portion. The planar coordinate moving mechanism includes a centering elastic component for keeping the central fixture centered at the center of the movable handle connection portion. A universal connecting handle is provided on the movable handle connection portion. Multiple scrapers are provided on the central fixture, and a cleaning device for removing residue from the surface of the multiple scrapers is provided on the central fixture.

[0007] Furthermore, the planar coordinate moving mechanism includes a transverse guide rail disposed on the central fixture, a transverse sliding member movably disposed on the transverse guide rail, a longitudinal guide rail disposed on the transverse sliding member, and a longitudinal sliding member movably disposed on the longitudinal guide rail.

[0008] Furthermore, the centering elastic component includes first elastic element mounting seats disposed on the left and right sides of the transverse guide rail, and each of the two first elastic element mounting seats is provided with a first elastic element pressing against the corresponding side of the transverse sliding member;

[0009] The transverse sliding member is provided with a second elastic element mounting seat on each of its front and rear sides, and each of the two second elastic element mounting seats is provided with a second elastic element for pressing the corresponding side of the longitudinal sliding member.

[0010] Furthermore, the universal joint handle includes a hinge ball sleeve disposed on the movable handle connecting part, and also includes a handle body, the lower end of which is provided with a hinge ball installed in the hinge ball sleeve.

[0011] Furthermore, the multi-blade scraper includes two blades spaced apart front to back, and the lower edge of each blade has an inverted triangular opening.

[0012] Furthermore, the cleaning device includes multiple guide shaft holes disposed on the central fixture, vertical guide shafts are movably disposed in the guide shaft holes, a cleaning frame is connected between the lower ends of the multiple vertical guide shafts, and the cleaning frame is provided with two sleeve holes that are respectively aligned with two of the tools, the inner wall of the sleeve hole is close to the outer wall of the corresponding tool.

[0013] In summary, the advantages of this utility model over the prior art are:

[0014] This invention addresses the shortcomings of existing coating head cleaning methods. Through its structural design, this invention offers the following advantages: a coordinate fine-tuning structure and a universal fine-tuning structure are provided between the handheld part and the scraper, ensuring the fit between the scraper and the coating head even during handheld movement. This allows for fine-tuning and compensation of the scraper's position, improving its cleaning ability. It also enables rapid cleaning of residual photoresist on the scraper surface. Furthermore, the structure is simple and easy to use. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is one of the internal structural diagrams of this utility model;

[0017] Figure 3 This is the second schematic diagram of the internal structure of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3This utility model provides a scraper for scraping off residual photoresist from a coating head, including a central fixture 1, a movable handle connecting part 2 on the central fixture 1, a planar coordinate moving mechanism 3 between the central fixture 1 and the movable handle connecting part 2, a centering elastic component 4 for keeping the central fixture 1 centered at the center of the movable handle connecting part 2 within the planar coordinate moving mechanism 3, a universal connecting handle 5 on the movable handle connecting part 2, multiple scrapers 6 on the central fixture 1, and a cleaning device 7 on the central fixture 1 for removing residue from the surface of the multiple scrapers 6;

[0020] Hold the movable handle connecting part 2 and align the multi-blade 6 with one end of the coating head;

[0021] Manually press the movable handle connecting part 2 to make the multiple scraper 6 fit against the coating head surface. At this time, when moving the movable handle connecting part 2, it is not possible to guarantee that it is precisely parallel to the coating head during manual movement. Therefore, the position of the multiple scraper 6 is finely adjusted and compensated by the planar coordinate moving mechanism 3 and the universal connecting handle 5 to better ensure the fit of the multiple scraper 6.

[0022] The central elastic component 4 ensures that the multiple scrapers 6 are centrally positioned while also providing elastic fine-tuning.

[0023] The planar coordinate moving mechanism 3 of this utility model includes a transverse guide rail 301 disposed on the central fixture 1, a transverse sliding member 302 movably disposed on the transverse guide rail 301, a longitudinal guide rail 303 disposed on the transverse sliding member 302, and a longitudinal sliding member 304 movably disposed on the longitudinal guide rail 303.

[0024] The central elastic component 4 of this utility model includes first elastic element mounting seats 401 disposed on the left and right sides of the transverse guide rail 301, and each of the two first elastic element mounting seats 401 is provided with a first elastic element 402 pressing against the corresponding side of the transverse sliding member 302.

[0025] The transverse sliding member 302 is provided with a second elastic element mounting seat 403 on both the front and rear sides, and each of the two second elastic element mounting seats 403 is provided with a second elastic element 404 for pressing the corresponding side of the longitudinal sliding member 304.

[0026] The universal connecting handle 5 of this utility model includes a hinge ball sleeve 501 disposed on the movable handle connecting part 2, and also includes a handle body 502, wherein a hinge ball 503 is disposed at the lower end of the handle body 502 and installed in the hinge ball sleeve 501.

[0027] The multi-blade 6 of this utility model includes two blades 601 arranged at intervals, and the lower edge of each blade 601 is provided with an inverted triangular opening 602.

[0028] The cleaning device 7 of this utility model includes a plurality of guide shaft holes 701 disposed on the central fixture 1. A vertical guide shaft 702 is movably disposed in the guide shaft holes 701. A cleaning frame 703 is connected between the lower ends of the plurality of vertical guide shafts 702. The cleaning frame 703 is provided with two sleeve holes 704 that are respectively aligned with two of the two tools 601. The inner wall of the sleeve hole 704 is close to the outer wall of the corresponding tool 601.

[0029] After cleaning, photoresist will remain on the surface of the multi-blade 6. At this time, the cleaning frame 703 is pressed down, and the two sleeve holes 704 on the cleaning frame 703 clean the surfaces of the two blades 601.

[0030] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A doctor blade for removing residual photoresist from a coating head, characterized by: The utility model provides a centering jig (1) is provided with movable handle connecting part (2), and the movable handle connecting part (2) is provided with plane coordinate moving mechanism (3) between centering jig (1), and the plane coordinate moving mechanism (3) is provided with the centering elastic component (4) for keeping centering jig (1) centering in movable handle connecting part (2) center position in, and movable handle connecting part (2) is provided with universal connecting handle (5), and centering jig (1) is provided with multiple doctor blades (6), and centering jig (1) is provided with cleaning device (7) for removing the residue on the surface of multiple doctor blades (6).

2. The doctor blade for scraping off the residual photoresist of a coating head according to claim 1, wherein: The plane coordinate moving mechanism (3) includes a transverse guide rail (301) provided on the centering jig (1), a transverse sliding member (302) movably arranged on the transverse guide rail (301), a longitudinal guide rail (303) provided on the transverse sliding member (302), and a longitudinal sliding member (304) movably arranged on the longitudinal guide rail (303).

3. The doctor blade for removing residual photoresist from a coating head according to claim 2, wherein: The centering elastic component (4) includes first elastic member mounting seats (401) provided on the left and right sides of the transverse guide rail (301), and each of the two first elastic member mounting seats (401) is provided with a first elastic member (402) pressed against a corresponding side of the transverse sliding member (302). Each of the two second elastic member mounting seats (403) provided on the front and rear sides of the transverse sliding member (302) is provided with a second elastic member (404) for pressing a corresponding side of the longitudinal sliding member (304).

4. The doctor blade for scraping off the residual photoresist from the coating head according to claim 3, wherein: The universal connecting handle (5) includes a hinged ball sleeve (501) provided on the movable handle connecting part (2), and a handle body (502) provided with a hinged ball body (503) mounted in the hinged ball sleeve (501).

5. The doctor blade for removing residual photoresist from a coating head according to claim 4, wherein: The multiple doctor blades (6) include two doctor blades (601) arranged at intervals in front and back, and the lower edge of the doctor blade (601) is provided with an inverted triangular opening (602).

6. The doctor blade for removing residual photoresist from a coating head according to claim 5, wherein: The cleaning device (7) includes a plurality of guide shaft holes (701) provided on the centering jig (1), a vertical guide shaft (702) movably arranged in each of the guide shaft holes (701), a cleaning frame (703) connected between the lower ends of the plurality of vertical guide shafts (702), two sleeve holes (704) provided on the cleaning frame (703) and aligned with the two doctor blades (601) respectively, and the inner wall of the sleeve hole (704) is tightly attached to the outer wall of a corresponding doctor blade (601).