A highly continuously adjustable coating blade

Abstract

The utility model discloses a kind of coating doctor blades with continuously adjustable height, including doctor blade seat and blade, the blade is slidably arranged on doctor blade seat, screw rod is equipped on the doctor blade seat, screw thread hole that is compatible with screw rod is equipped on the doctor blade seat, one end of the screw rod is out of screw thread hole and is in contact on blade, the other end out of screw thread hole forms control end, the central axis direction of the screw rod is the direction of blade sliding up and down, positioning mechanism for positioning blade is equipped on the doctor blade seat.The coating doctor blade of the present application can be rotated by rotating the turntable, drive screw rod to rotate, while the screw rod rotates, it realizes axial movement itself, and the blade will be axially moved with screw rod, so that stepless adjustment can be realized, the height of tool body can be continuously adjusted, and the adjustment precision is high, it is very convenient and fast to adjust, the applicability of the improved second-generation coating doctor blade will be wider.

Description

Technical Field

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

[0002] Doctor blade coating machines are widely used in the fields of coatings, inks, and semiconductor thin film processing. The doctor blade is a crucial component of the doctor blade coating machine; its main function is to spread the coating, ink, or other solution dripped onto the bottom of the blade onto a rigid or flexible substrate under the machine's propulsion, and, combined with certain post-processing techniques, form a uniform solid film.

[0003] Previously, our company applied for a coating doctor blade with adjustable blade height, application number: CN202422089524.4. It includes a doctor blade holder and a blade. The blade is slidably mounted on the doctor blade holder. Several shims are provided between the blade and the doctor blade holder to control the blade height. The doctor blade holder is equipped with a positioning mechanism that causes the blade to press firmly against the shims for positioning. By changing the number or thickness of the shims, the height of the blade can be adjusted, and the positioning mechanism positions the blade, thus meeting the production needs of various film thicknesses.

[0004] However, the aforementioned adjustable blade height coating blade changes the blade height by altering the number or thickness of the shims. The adjustment range of the blade height is relatively limited, making it less suitable for applications requiring high precision. Utility Model Content

[0005] In order to expand the scope of application, this application provides a coating blade with continuously adjustable height.

[0006] The coating blade with continuously adjustable height provided in this application adopts the following technical solution: A height-adjustable coating blade includes a blade holder and a blade. The blade is slidably mounted on the blade holder. The blade holder has a screw and a threaded hole adapted to the screw. One end of the screw passes through the threaded hole and abuts against the blade, while the other end passes through the threaded hole to form a control end. The central axis of the screw is in the direction of the blade's vertical sliding. The blade holder has a positioning mechanism for positioning the blade.

[0007] Optionally, the blade includes a blade body and sliders disposed on both sides of the blade body. The scraper seat is provided with a groove for the sliders to slide up and down. The grooves are connected to a threaded hole. The screw abuts against the slider. The positioning mechanism includes an elastic element, which exerts a force on the slider to move in the direction of the screw.

[0008] Optionally, the slider is provided with a slot for inserting the end of a screw, which is inserted into the slot.

[0009] Optionally, the screw has a turntable at the other end relative to the slider, the turntable has an insertion groove, the end of the screw is inserted into the insertion groove, the screw and the turntable are fixed by screws, and the scraper seat has a rotation groove for the turntable to rotate.

[0010] Optionally, the slider has a slot on the side near the elastic element, and the elastic element is engaged in the slot.

[0011] Optionally, the slot is inclined, and the slot gradually tilts towards the scraper seat from the slot opening to the bottom of the slot. After the elastic element is engaged in the slot, the side wall of the elastic element abuts against the scraper seat.

[0012] Optionally, the scraper holder is provided with a sliding groove for the scraper body to slide up and down.

[0013] Optionally, the elastic element is an elastic rod, and the scraper seat is provided with an installation groove for installing the elastic element. The installation groove is connected to the slide groove. The elastic element is installed in the installation groove, and after the elastic element is deformed, its sidewall abuts against the slider.

[0014] In summary, this application includes at least one of the following beneficial technical effects: The coating blade of this application can rotate a turntable to drive a screw to rotate. While the screw rotates, it moves axially, and the blade moves axially together with the screw, thus achieving stepless adjustment. The height of the blade can be continuously adjusted with high precision and is very convenient and quick to adjust. The improved second-generation coating blade will have a wider range of applications. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment of this application.

[0016] Figure 2 This is a structural schematic diagram of an embodiment of this application.

[0017] Figure 3 This is a perspective view of the blade in the embodiments of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Screw; 2. Scraper holder; 21. Base; 3. Blade; 31. Blade body; 32. Slider; 33. Slide groove; 4. Threaded hole; 5. Positioning mechanism; 51. Elastic element; 6. Slot; 7. Turntable; 8. Insertion slot; 9. Screw; 10. Rotation groove; 11. Card slot; 12. Sliding groove. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3This application will be described in further detail.

[0020] This application discloses a coating blade with continuously adjustable height, including a blade holder 2 and a blade 3. The blade 3 is slidably disposed on the blade holder 2. A screw 1 is provided on the blade holder 2, and a threaded hole 4 adapted to the screw 1 is provided on the blade holder 2. One end of the screw 1 passes through the threaded hole 4 and abuts against the blade 3, and the other end passes through the threaded hole 4 to form a control end. The central axis of the screw 1 is in the direction of the blade 3 sliding up and down. A positioning mechanism 5 for positioning the blade 3 is provided on the blade holder 2.

[0021] The blade 3 includes a blade body 31 and sliders 32 disposed on both sides of the blade body 31. A groove 33 is provided on the scraper holder 2 for the sliders 32 to slide up and down. The groove 33 communicates with the threaded hole 4. The screw 1 abuts against the sliders 32. The positioning mechanism 5 includes an elastic element 51, which exerts a force on the sliders 32 to move them towards the screw 1. The elastic element 51 is an elastic rod. A mounting groove for installing the elastic element 51 is provided on the scraper holder 2, communicating with the groove 33. The elastic element 51 is installed in the mounting groove. After deformation, the elastic element 51's sidewall abuts against the sliders 32. The elastic element 51 is located below the screw 1. The position of the slider 32 is positioned by the combined forces of the elastic element 51 and the screw 1 acting on the upper and lower surfaces of the slider 32. Rotating the screw 1 changes its position, allowing for height adjustment of the slider 32 and the entire blade 3. During this process, the elastic element 51 deforms, but it always maintains the positioning of the slider 32.

[0022] A slot 11 is provided on the side of the slider 32 near the elastic element 51. The elastic element 51 is engaged in the slot 11. The slot 11 is inclined and gradually slopes towards the scraper seat 2 from the opening to the bottom. After the elastic element 51 is engaged in the slot 11, its side wall abuts against the scraper seat 2. The slot 11 prevents the elastic element 51 from easily detaching from the mounting slot during normal use. The gradual slope of the slot 11 towards the scraper seat 2 ensures that the side wall of the elastic element 51 abuts against the side wall of the scraper seat 2 after it is engaged in the slot 11, making the connection between the elastic element 51, the scraper seat 2, and the blade 3 more stable.

[0023] The slider 32 is provided with a slot 6 for inserting the end of the screw 1. The end of the screw 1 is inserted into the slot 6. After the screw 1 is rotated and adjusted, its end is always inserted into the slot 6, thereby making the connection between the blade 3 and the scraper seat 2 more stable.

[0024] The scraper holder 2 includes a base 21 located on the left and right sides of the blade 3. A sliding groove 33, a threaded hole 4 and a mounting groove are respectively provided on the base 21. The two bases 21 have sliding grooves 12 on their opposite side walls for the blade body 31 to slide up and down.

[0025] The screw 1 has a turntable 7 at the other end relative to the slider 32. The turntable 7 has an insertion groove 8. The end of the screw 1 is inserted into the insertion groove 8. The screw 1 and the turntable 7 are fixed by screws 9. The scraper seat 2 has a rotating groove 10 for the turntable 7 to rotate.

[0026] A baseline is provided on the slider 32, and scale lines corresponding to the baseline on the slider 32 are provided on both sides of the scraper seat 2 relative to the slide groove 33 (not shown in the figure).

[0027] A baseline is provided on the upper surface of the scraper holder 2, and a ring of scale lines corresponding to the baseline on the turntable 7 is provided on the upper surface of the turntable 7 (not shown in the figure).

[0028] The implementation principle of a height-continuously adjustable coating blade according to an embodiment of this application is as follows: When installing the entire coating blade, first insert the screw 1 into the insertion slot 8 of the turntable 7 and fix it with the screw 9. Then screw the screw 1 into the thread of the blade holder 2. Next, insert the left and right sliders 32 on the blade 3 into the sliding grooves 33 of the two bases 21 respectively. Then install the elastic elements 51 on the left and right sides into the mounting grooves and snap them into the slots 11 of the sliders 32. Finally, adjust the screws 1 on the left and right sides respectively to make the sliders 32 slide to the preset scale. The end of the screw 1 is inserted into the slot 6 of the slider 32.

[0029] When the height of the blade 3 needs to be adjusted, it is not necessary to remove the elastic elements 51 on both sides from the mounting slot. The screws 1 on both sides can be adjusted directly to move the slider 32 to the predetermined height, which is more convenient and faster.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A coating blade with continuously adjustable height, comprising a blade holder (2) and a blade (3), wherein the blade (3) is slidably disposed on the blade holder (2), characterized in that: The scraper holder (2) is provided with a screw (1) and a threaded hole (4) adapted to the screw (1). One end of the screw (1) passes through the threaded hole (4) and abuts against the blade (3), while the other end passes through the threaded hole (4) to form a control end. The central axis of the screw (1) is in the direction of the blade (3) sliding up and down. The scraper holder (2) is provided with a positioning mechanism (5) for positioning the blade (3).

2. The coating blade with continuously adjustable height according to claim 1, characterized in that: The blade (3) includes a blade body (31) and sliders (32) disposed on both sides of the blade body (31). The scraper seat (2) is provided with a groove (33) for the slider (32) to slide up and down. The groove (33) is connected to the threaded hole (4). The screw (1) abuts against the slider (32). The positioning mechanism (5) includes an elastic element (51). The elastic element (51) exerts a force on the slider (32) to move in the direction of the screw (1).

3. The coating blade with continuously adjustable height according to claim 2, characterized in that: The slider (32) is provided with a slot (6) for inserting the end of the screw (1), and the end of the screw (1) is inserted into the slot (6).

4. A coating blade with continuously adjustable height according to claim 3, characterized in that: The screw (1) has a turntable (7) at the other end relative to the slider (32). The turntable (7) has an insertion groove (8). The end of the screw (1) is inserted into the insertion groove (8). The screw (1) and the turntable (7) are fixed by screws (9). The scraper seat (2) has a rotating groove (10) for the turntable (7) to rotate.

5. A coating blade with continuously adjustable height according to claim 4, characterized in that: The slider (32) has a slot (11) on the side near the elastic member (51), and the elastic member (51) is engaged in the slot (11).

6. A coating blade with continuously adjustable height according to claim 5, characterized in that: The slot (11) is inclined and gradually tilts towards the scraper seat (2) from the opening to the bottom. After the elastic element (51) is engaged in the slot (11), the side wall of the elastic element (51) abuts against the scraper seat (2).

7. A coating blade with continuously adjustable height according to claim 6, characterized in that: The scraper holder (2) is provided with a sliding groove (12) for the scraper body (31) to slide up and down.

8. A coating blade with continuously adjustable height according to claim 7, characterized in that: The elastic element (51) is an elastic rod. The scraper seat (2) is provided with an installation groove for installing the elastic element (51). The installation groove is connected to the slide groove (33). The elastic element (51) is installed in the installation groove. After the elastic element (51) is deformed, its side wall abuts against the slider (32).

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