Coating scraper with adjustable blade height

Abstract

The utility model discloses a blade height adjustable coating scraper, which belongs to the technical field of coating machine scrapers, and comprises a scraper seat and a blade, the blade is arranged on the scraper seat in an up-down sliding manner, and a plurality of gaskets for controlling the height of the blade are arranged between the blade and the scraper seat. The scraper seat is provided with a positioning mechanism which enables the blade to abut against the gasket to position the gasket. According to the scraper, the height of the blade can be adjusted by changing the number of the gaskets so as to meet the production requirements of more films with different thicknesses, and the application range of the scraper is expanded; meanwhile, a blade on the scraper can be replaced according to actual production requirements; and the blade on the scraper can be detached, so that the whole set of equipment is convenient to clean, assemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machine scrapers, in particular to a coating scraper with adjustable blade height. Background Art

[0002] Doctor blade coating machines are widely used in the fields of coating, ink, and semiconductor thin film processing and preparation. Among them, the doctor blade is an important part of the doctor blade coating machine. Its main function is to spread solutions such as coatings and inks dropped at the bottom of the doctor blade on a rigid or flexible substrate under the push of the coating machine, and form a uniform solid thin film through certain post-treatment processes.

[0003] Most of the current coating scrapers on the market are fixed, that is, the height of the blade from the bottom of the scraper is fixed, and this distance is not adjustable, thus restricting its application requirements in the fields where the film thickness needs to be adjusted. Summary of the Utility Model

[0004] In order to make the height of the blade adjustable, this application provides a coating scraper with adjustable blade height.

[0005] The coating scraper with adjustable blade height provided by this application adopts the following technical solutions:

[0006] A coating scraper with adjustable blade height includes a scraper seat and a blade. The blade is slidably arranged on the scraper seat up and down. There are several gaskets for controlling the blade height between the blade and the scraper seat. A positioning mechanism is arranged on the scraper seat to urge the blade to press tightly on the gasket for positioning.

[0007] By adopting the above technical solutions, the height of the tool body can be adjusted by changing the number of gaskets, and the tool body is positioned by the positioning mechanism, so as to meet the production requirements of more different film thicknesses and expand its scope of use.

[0008] Optionally, the blade includes a tool body and extension blocks arranged on both sides of the tool body. The scraper seat is provided with sliding grooves for the extension blocks to pass through. The extension blocks are slidably arranged in the sliding grooves up and down. The positioning mechanism includes an elastic member. The elastic member is arranged between the extension block and the bottom wall of the sliding groove to urge the extension block to press tightly on the gasket.

[0009] By adopting the above technical solutions, the elastic force of the elastic member urges the blade and the scraper seat to be tightly connected together, and by changing the number of gaskets, the height of the blade can be adjusted.

[0010] Optionally, the elastic member is an elastic rod, the sliding groove includes a sliding groove for the extension block to slide up and down and an installation groove for installing the elastic rod, the installation groove and the sliding groove are connected to each other, the elastic rod is installed in the installation groove, and after the elastic rod is deformed, its side wall is pressed against the extension block.

[0011] Optionally, a slot is provided on one side of the extension block close to the elastic rod, and the elastic rod is clipped into the slot.

[0012] By adopting the above technical solution and setting the clamping groove, the elastic rod is not easy to be separated from the installation groove during the normal use of the scraper.

[0013] Optionally, the positioning mechanism includes a screw rod, a knob is fixedly provided at the end of the screw rod, a first through hole is provided on the scraper seat for the screw rod to pass through, the screw rod is threadedly connected to the blade after passing through the scraper seat, the axial direction of the screw rod is the direction in which the blade slides up and down, and the diameter of the knob is larger than the diameter of the first through hole.

[0014] By adopting the above technical solution, the scraper seat and the blade are tightly connected together through the screw and the knob, and the height of the blade can be adjusted by changing the number of gaskets between the two.

[0015] Optionally, at least two positioning pins are provided between the scraper seat and the blade, and the gasket is provided with a second through hole for the positioning pins to pass through.

[0016] By adopting the above technical solution, the setting of the positioning pin can position the gasket, so that during the installation process, the gasket is not easy to touch the screw.

[0017] Optionally, the scraper seat is provided with a guide groove for the blade to slide up and down.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] The scraper of the present application can adjust the height of the blade by changing the number of gaskets to adapt to the production needs of more different film thicknesses and expand its scope of use; at the same time, the blade on the scraper can also be replaced according to actual production needs; the blade on the scraper can be disassembled to facilitate the cleaning and assembly of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a stereoscopic diagram of the first embodiment of the present application.

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0022] Figure 3 It is a schematic diagram of the structure of the blade and gasket in Example 1 of the present application.

[0023] Figure 4 It is a perspective view of the second embodiment of the present application.

[0024] Figure 5 It is a perspective view of the third embodiment of the present application.

[0025] Figure 6 It is a schematic structural view of removing the blade and the gasket in the third embodiment of the present application.

[0026] Figure 7 It is a schematic structural view of the third embodiment of the present application.

[0027] Figure 8 It is a perspective view of the gasket in the third embodiment of the present application.

[0028] Explanation of reference numerals: 1, scraping knife seat; 2, blade; 21, knife body; 22, extension block; 3, gasket; 4, sliding groove; 41, chute; 42, mounting groove; 5, positioning mechanism; 51, elastic rod; 52, screw; 53, knob; 6, card slot; 7, first through hole; 8, positioning pin; 9, second through hole; 10, guiding groove; 11, upper positioning hole; 12, lower positioning hole; 13, handle; 14, third through hole. Specific Embodiments

[0029] The following further describes the present application in detail with reference to the Figures 1-8 accompanying drawings.

[0030] Embodiment 1. The embodiment of the present application discloses a blade height-adjustable coating scraping knife. Referring to Figure 1 , Figure 2 and Figure 3 , it includes a scraping knife seat 1 and a blade 2. The blade 2 is slidably arranged up and down on the scraping knife seat 1. A guiding groove 10 for the blade 2 to slide up and down is provided on the scraping knife seat 1. A plurality of gaskets 3 for controlling the height of the blade 2 are arranged between the blade 2 and the scraping knife seat 1. A positioning mechanism 5 for urging the blade 2 to press tightly against the gasket 3 for positioning is provided on the scraping knife seat 1.

[0031] The blade 2 includes a blade body 21 and extension blocks 22 arranged on both sides of the blade body 21. The blade body 21 and the extension blocks 22 are integrally arranged. A sliding groove 4 for the extension blocks 22 to pass through is provided on the scraping knife seat 1. The extension blocks 22 are slidably arranged up and down in the sliding groove 4. The positioning mechanism 5 includes an elastic member. The elastic member is arranged between the extension blocks 22 and the bottom wall of the sliding groove 4 to urge the extension blocks 22 to abut against the gasket 3. The elastic member is an elastic rod 51. The sliding groove 4 includes a sliding groove 41 for the extension blocks 22 to slide up and down and a mounting groove 42 for mounting the elastic rod 51. The mounting groove 42 is communicated with the sliding groove 41. When the elastic rod 51 is installed in the mounting groove 42, it will be deformed and bent and abut against the bottom wall of the extension block 22. The elastic force generated after the deformation of the elastic rod 51 acts on the extension block 22, so that the entire blade 2 can be positioned.

[0032] A clamping groove 6 is provided on one side of the extension block 22 close to the elastic rod 51. The elastic rod 51 is clamped in the clamping groove 6. The arrangement of the clamping groove 6 can limit the elastic rod 51, so that during normal use, the elastic rod 51 is not easily detached from the mounting groove 42.

[0033] The mounting groove 42 is arc-shaped. The two ends of the mounting groove 42 communicate with the outside relative to the elastic rod 51. The two ends of the elastic rod 51 extend outside the mounting groove 42, and a handle 13 is fixedly arranged at one end thereof. The arrangement of the handle 13 makes it convenient to pull the elastic rod 51 out of the mounting groove 42 when disassembling the elastic rod 51.

[0034] The materials of the scraping knife seat 1 and the blade 2 are hard aluminum alloy, and the material of the spring rod is spring steel.

[0035] The implementation principle of a blade height-adjustable coating scraping knife according to an embodiment of the present application is as follows: when it is necessary to adjust the height of the blade 2, only need to first disassemble the elastic rods 51 on the left and right sides from the mounting grooves 42 respectively, and then adjust the number of gaskets 3 on the left and right sides according to actual needs. After adjustment, finally install the spring rods on the left and right sides into their respective mounting grooves 42 and snap the spring rods into the clamping grooves 6.

[0036] Embodiment 2, refer to Figure 4 , the main difference from Embodiment 1 is that: two blades 2 are installed on the scraping knife seat 1. A plurality of gaskets 3 are provided between each of the two blades 2 and the scraping knife seat 1, and they are respectively positioned by the positioning mechanism 5. Installing two blades 2 on the scraping knife seat 1 makes it very convenient during actual production. Different blades 2 or blades 2 with different heights can be installed on the scraping knife seat 1 according to actual production needs. When it is necessary to replace another type of blade 2, only need to install the scraping knife reversely on the coating machine, which is more convenient to operate.

[0037] Embodiment 3, refer toFigure 5 , Figure 6 , Figure 7 and Figure 8 , the main difference from the first embodiment is that: the positioning mechanism 5 includes two screw rods 52, the ends of the screw rods 52 are fixedly provided with knobs 53, the blade holder 1 is provided with a first through hole 7 for the screw rods 52 to pass through, after the screw rods 52 pass through the blade holder 1, they are threadedly connected to the blade 2, the axial direction of the screw rods 52 is the direction of the up and down sliding of the blade 2, the diameter of the knob 53 is larger than the diameter of the first through hole 7, two positioning pins 8 are provided between the blade holder 1 and the blade 2, the gasket 3 is provided with a second through hole 9 for the positioning pins 8 to pass through, and the gasket 3 is provided with a third through hole 14 for the screw rods 52 to pass through. The setting of the two positioning pins 8 can position the gasket 3.

[0038] The blade holder 1 is provided with an upper positioning hole 11 for installing the positioning pin 8, the blade 2 is provided with a lower positioning hole 12 for installing the positioning pin 8, and the positioning pin 8 is respectively inserted and matched with the upper positioning hole 11 and the lower positioning hole 12.

[0039] The implementation principle of the blade height adjustable coating blade in the embodiment of the present application is: when the height of the blade 2 needs to be adjusted, only need to first rotate the knob 53 to separate the two screw rods 52 from the blade 2 respectively, then adjust the number of gaskets 3 according to actual needs, and finally make the blade holder 1 and the blade 2 tightly connected together through the screw rods 52 and the knobs 53. The gasket 3 is clamped and fixed between the blade holder 1 and the blade 2.

[0040] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A blade height adjustable coating doctor blade, comprising a doctor blade seat (1) and a blade (2), characterized in that: The blade (2) is arranged on the scraper seat (1) to slide up and down. A plurality of shims (3) for controlling the height of the blade (2) are arranged between the blade (2) and the scraper seat (1). A positioning mechanism (5) is arranged on the scraper seat (1) to urge the blade (2) to press tightly against the shims (3) for positioning.

2. The height-adjustable coating doctor blade according to claim 1, wherein: The blade (2) includes a blade body (21) and extension blocks (22) arranged on both sides of the blade body (21). A sliding groove (4) for the extension blocks (22) to pass through is arranged on the scraper seat (1). The extension blocks (22) are arranged to slide up and down in the sliding groove (4). The positioning mechanism (5) includes an elastic member, and the elastic member is arranged between the extension blocks (22) and the bottom wall of the sliding groove (4) to urge the extension blocks (22) to press tightly against the shims (3).

3. The adjustable blade height coating doctor blade according to claim 2, wherein: The elastic member is an elastic rod (51). The sliding groove (4) includes a sliding groove (41) for the extension blocks (22) to slide up and down and a mounting groove (42) for mounting the elastic rod (51). The mounting groove (42) communicates with the sliding groove (41). The elastic rod (51) is mounted in the mounting groove (42), and after the elastic rod (51) is deformed, its side wall presses tightly against the extension blocks (22).

4. The height-adjustable coating blade according to claim 3, wherein: A clamping groove (6) is arranged on one side of the extension block (22) close to the elastic rod (51), and the elastic rod (51) is clamped in the clamping groove (6).

5. The blade height adjustable coating doctor blade according to claim 1, wherein: The positioning mechanism (5) includes a screw rod (52). A knob (53) is fixedly arranged at the end of the screw rod (52). A first through hole (7) for the screw rod (52) to pass through is arranged on the scraper seat (1). After passing through the scraper seat (1), the screw rod (52) is threadedly connected to the blade (2). The axial direction of the screw rod (52) is the direction in which the blade (2) slides up and down. The diameter of the knob (53) is larger than the diameter of the first through hole (7).

6. The adjustable blade height coating doctor blade according to claim 5, wherein: At least two positioning pins (8) are arranged between the scraper seat (1) and the blade (2). A second through hole (9) for the positioning pins (8) to pass through is arranged on the shim (3).

7. The adjustable blade height coating doctor blade according to claim 1, characterized in that: A guiding groove (10) for the blade (2) to slide up and down is arranged on the scraper seat (1).

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