CN216378358U - Coating device with gradually changing upper and lower parts - Google Patents

Abstract

The utility model relates to the technical field of coating devices, in particular to an up-down gradient coating device and a gradient color adjustment method, comprising an external fixing ring, wherein a plurality of fixture fixing plates are arranged inside the external fixing ring, and the The outside of the fixing plate is fan-shaped, the outer wall of the fixture fixing plate is provided with a through hole, the small fan-shaped end of the fixture fixing plate is provided with an arc-shaped groove, and the small end groove of the fixture fixing plate is provided with a fixing plate. a transmission seat; the upper end of the fixed plate transmission seat is provided with a plurality of mounting piece fixing plates, and the upper end of the mounting piece fixing plate is fixed with a fixing strip mounting piece, the utility model is provided with gradient blocks of different shapes, by changing the gradient blocks To control the gradient range of the color, change the space between the gradient shutters to control the area of the unblocked area of the product. After satisfying the color of the unblocked area of the product, the color of the gradient area is determined. The lighter the gradient area, the lighter the gradient shutter is. The higher the quantity, the more accurate the color coating is.

Description

An up and down gradient coating device

technical field

The utility model relates to the technical field of coating devices, in particular to a coating device with vertical gradient.

Background technique

In the field of optical coating, it specializes in processing PET, PC sheet, acrylic and other coating products. In order to achieve a more dazzling color and a metallic feel on the coating surface of these products, a layer of UV texture is usually transferred on the back of the sheet, and then coated. The coated film layer is isolated from the UV texture, and then the next process is carried out to cover the ink bottom, so that the product can be viewed from the front, and the texture effect of more dazzling color and metallic feeling can be achieved.

According to application number: CN201810313478.8, publication number: CN108396291A, a device and a coating method for realizing gradient electroplating by using an electron beam evaporation coating machine are disclosed. Based on the device for realizing gradient color electroplating by using an electron beam evaporation coating machine, The periphery of the product to be coated is evacuated, and then coated with an electron beam evaporation coating machine. By installing the product to be coated on a jig with a certain inclination angle, and driven by the turret, an electron beam evaporation coating machine is used for coating to achieve gradient color plating.

In the prior art, there are problems as follows:

(1) Due to the diversity of coating products, the above-mentioned device for realizing gradient electroplating by using an electron beam evaporation coating machine and its coating method are in use. The use area is small, and the position synchronization of the upper and lower gradients is small, which is prone to large color errors.

(2) In addition, the distance between the electron gun evaporation source and the coating product is long, and the evaporation angle is easy to change, which reduces the quality of the coating. At the same time, the adjustment space of the jig that realizes the up and down gradient is limited, and the range of the color gradient of the coating is reduced.

(3) In the current stage, the coating layer is superimposed, and the color effects achieved by different layers are different. The commonly used layer stacking materials are SIO2 (silicon dioxide), TI3O5 (titanium pentoxide), using 6 Layer film composition, the properties of the above materials will have poor adhesion to the board, the performance of boiling test, ultraviolet light test, salt spray and other performance is relatively poor, the stability of the test performance is poor, can not meet the needs of customers.

Utility model content

The purpose of the present utility model is to provide a coating device with up and down gradients, so as to solve the problems raised in the above-mentioned background art.

The technical scheme of the utility model is as follows: an up and down gradient coating device, comprising an external fixing ring, a plurality of fixture fixing plates are arranged inside the outer fixing ring, and the outer part of the fixture fixing plate is fan-shaped, The outer wall of the fixture fixing plate is provided with a through hole, the small fan-shaped end of the fixture fixing plate is provided with an arc-shaped groove, and the small end groove of the fixture fixing plate is provided with a fixing plate transmission seat;

The upper end of the fixed plate transmission seat is provided with a plurality of mounting piece fixing plates, and the upper end of the mounting piece fixing plate is fixed with a fixing strip mounting piece, and the outer wall of the fixing strip mounting piece is provided with a blocking piece fixing strip, and the blocking piece One side of the fixing bar is provided with a gradient baffle.

Preferably, four rows of workpiece mounting jigs are arranged on the side of the fixture fixing plate close to the mounting piece fixing plate, and the workpiece mounting fixtures in the four rows are all arc-shaped, and the workpiece mounting fixtures in the four rows are connected to the fixture The distances between the outer walls of the large ends of the fixing plates are 10 cm, 38 cm, 65 cm and 91 cm, respectively.

Preferably, there are at least six mounting piece fixing plates, and the mounting piece fixing plates are evenly distributed on the fixing plate transmission seat, the fixing strip mounting pieces are located on the center line of the mounting piece fixing plate, and the fixing strip mounting pieces are The angle with the mounting plate fixing plate is 90°.

Preferably, the baffle fixing bar includes a first fixing bar, a second fixing bar, a third fixing bar and a fourth fixing bar, the first fixing bar, the second fixing bar, the third fixing bar and the fourth fixing bar The outside of the strips are arc-shaped, and the distances between the first fixing strip, the second fixing strip, the third fixing strip and the fourth fixing strip and the fixture fixing plate are 20cm, 19cm, 19cm and 18cm respectively.

Preferably, the exteriors of the first, second, third and fourth fixing bars are arc-shaped, and the first, second, third and fourth fixing bars are all arc-shaped. The two ends are respectively fixed on the two fixing strip mounting pieces.

Preferably, the gradient blocking piece includes a first blocking piece, a second blocking piece and a third blocking piece, one end of each of the first blocking piece, the second blocking piece and the third blocking piece is provided with a through hole, and the third blocking piece is The other ends of the first blocking piece, the second blocking piece and the third blocking piece are all pointed, and the inclination angles of the tips of the first blocking piece, the second blocking piece and the third blocking piece increase in sequence. The widths of the sheet, the second blocking sheet and the third blocking sheet are all cm, and the lengths of the first blocking sheet, the second blocking sheet and the third blocking sheet are 140mm, 140mm and 90mm respectively.

The utility model provides a kind of up-down gradient coating device by improvement, compared with the prior art, has the following improvements and advantages:

One: the utility model is provided with gradient baffles of different shapes, the gradient range of the color is controlled by changing the gradient baffles, and the area between the gradient baffles is changed to control the area of the unobstructed area of the product, so as to meet the requirements of the unobstructed area of the product. After the color, the color of the gradient area is determined. The lighter the color of the gradient area, the more the gradient baffles are used, which improves the accuracy of color coating;

Second: the retaining strip of the utility model plays the role of fixing the gradient retaining plate, so that the gradient retaining plate can be accurately positioned at the position of the workpiece installation jig, so that in the process of use, the gradient retaining plates in each row can The product on the workpiece mounting jig is blocked, the arc-shaped baffle fixing strip makes the fixed gradient baffles distributed in an arc, and the gradient baffles on the arc-shaped baffle fixing strip are composed of different gradient baffles. The gradient effect of the product is different, the number of gradient blocks is different, and the shape of the gradient blocks is also different, which increases the range of color gradients.

Third: after the experiment of the present utility model, the wavelength difference between the upper and lower gradients is nanometers, the overall color wavelength is nanometer ±, and the color of the unshielded area is within the controllable range. In the production process, when other conditions are met, fine adjustment is made. Gradient small baffle can be used, it is more convenient to use and operate.

Fourth:

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the utility model is further explained:

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the top view of the present utility model;

Fig. 3 is the bottom view of the present utility model;

Fig. 4 is the structural schematic diagram of the gradient shutter of the present invention;

5 is a schematic view of the coating structure of the present invention;

Description of reference numerals: 1. Fixture fixing plate, 2. External fixing ring, 3. Fixing plate transmission seat, 4. Mounting plate fixing plate, 5. Fixing strip mounting plate, 6. Blocking plate fixing strip, 601, Section 601. A fixing strip, 602, the second fixing strip, 603, the third fixing strip, 604, the fourth fixing strip, 7, the workpiece mounting jig, 8, the gradient stop, 801, the first stop, 802, the second stop Sheet, 803, third baffle, TI3O5 (titanium pentoxide) layer 901, SIO2 (silicon dioxide) layer 902, TI3O5 (titanium pentoxide) layer 903, SIO2 (silicon dioxide) layer 904, TI3O5 (five Titanium oxide) layer 905, ZRO2 (zirconium dioxide) layer 906, UV texture layer 907 and PC board 908.

Detailed ways

The present utility model will be described in detail below, and the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The present utility model provides a kind of coating device with up and down gradient through improvement, and the technical scheme of the present utility model is:

Example 1:

As shown in Fig. 1-Fig. 4, a coating device with vertical gradient includes an external fixing ring 2, a plurality of jig fixing plates 1 are arranged inside the outer fixing ring 2, and the outside of the jig fixing plate 1 is fan-shaped , the outer wall of the fixture fixing plate 1 is provided with a through hole, the small fan-shaped end of the fixture fixing plate 1 is provided with an arc-shaped groove, and the small end groove of the fixture fixing plate 1 is provided with a fixed plate transmission seat 3;

The upper end of the fixed plate transmission base 3 is provided with a plurality of mounting piece fixing plates 4, and the upper end of the mounting piece fixing plate 4 is fixed with a fixing strip mounting piece 5, and the outer wall of the fixing strip mounting piece 5 is provided with a blocking piece fixing strip 6, the blocking piece One side of the fixing bar 6 is provided with a gradient blocking piece 8 .

The external fixing ring 2 plays the role of fixing the jig fixing plate 1. At the same time, multiple jig fixing plates 1 can be evenly installed in the external fixing ring 2, which is convenient for the maintenance of the jig fixing plate 1. The mounting plate fixing plate 4 on the plate transmission base 3 plays the role of the blocking piece fixing strip 6, and the position of the gradient blocking piece 8 is fixed by the blocking piece fixing strip 6, so that the gradient blocking piece 8 distributed in a row of arcs can be accurately It is located below a row of arc-shaped workpiece mounting fixtures 7. By controlling the distance between the two gradient shutters 8, the unblocked area of the product on the workpiece mounting fixture 7 is controlled to increase the accuracy of product coating. .

Specifically, the side of the fixture fixing plate 1 close to the mounting plate fixing plate 4 is provided with four rows of workpiece mounting fixtures 7. The four rows of workpiece mounting fixtures 7 are all arc-shaped, and the four rows of workpiece mounting fixtures 7 are fixed to the fixture. The distances between the outer walls of the big end of the plate 1 were 10 cm, 38 cm, 65 cm and 91 cm, respectively.

The workpiece mounting fixture 7 plays the role of fixing the product, and the distance between the workpiece mounting fixtures 7 can be adjusted according to the product, so that the product can be accurately located at the position of the gradient stopper 8, and the workpiece mounting fixture 7 can increase the screw It is fixed on the fixture fixing plate 1, so that it is convenient for the user to adjust the position of the workpiece mounting fixture 7.

Specifically, there are at least six mounting piece fixing plates 4, and the mounting piece fixing plates 4 are evenly distributed on the fixing plate transmission base 3, the fixing strip mounting piece 5 is located on the center line of the mounting piece fixing plate 4, and the fixing strips are installed The angle between the sheet 5 and the mounting sheet fixing plate 4 is 90°.

The mounting piece fixing plate 4 plays the role of fixing the position of the blocking piece fixing strip 6, and at the same time the mounting piece fixing plate 4 is on the center line of the fixing plate drive seat 3, the fixing plate drive seat 3 and the mounting piece fixing plate 4 can form a "T" The structure is relatively firm in shape, and the four baffle fixing bars 6 can correspond to the positions of the workpiece mounting jigs 7 distributed in an arc shape, thereby increasing the blocking effect.

Embodiment 2:

As shown in Fig. 1-Fig. 4, a coating device with vertical gradient includes an external fixing ring 2, a plurality of jig fixing plates 1 are arranged inside the outer fixing ring 2, and the outside of the jig fixing plate 1 is fan-shaped , the outer wall of the fixture fixing plate 1 is provided with a through hole, the small fan-shaped end of the fixture fixing plate 1 is provided with an arc-shaped groove, and the small end groove of the fixture fixing plate 1 is provided with a fixed plate transmission seat 3;

The upper end of the fixed plate transmission base 3 is provided with a plurality of mounting piece fixing plates 4, and the upper end of the mounting piece fixing plate 4 is fixed with a fixing strip mounting piece 5, and the outer wall of the fixing strip mounting piece 5 is provided with a blocking piece fixing strip 6, the blocking piece One side of the fixing bar 6 is provided with a gradient blocking piece 8 .

The external fixing ring 2 plays the role of fixing the jig fixing plate 1. At the same time, multiple jig fixing plates 1 can be evenly installed in the external fixing ring 2, which is convenient for the maintenance of the jig fixing plate 1. The mounting plate fixing plate 4 on the plate transmission base 3 plays the role of the blocking piece fixing strip 6, and the position of the gradient blocking piece 8 is fixed by the blocking piece fixing strip 6, so that the gradient blocking piece 8 distributed in a row of arcs can be accurately It is located below a row of arc-shaped workpiece mounting fixtures 7. By controlling the distance between the two gradient shutters 8, the unblocked area of the product on the workpiece mounting fixture 7 is controlled to increase the accuracy of product coating. .

Specifically, the baffle fixing bar 6 includes a first fixing bar 601 , a second fixing bar 602 , a third fixing bar 603 and a fourth fixing bar 604 . The first fixing bar 601 , the second fixing bar 602 and the third fixing bar 603 The outer parts of the fourth fixing bar 604 and the fourth fixing bar 604 are arc-shaped, and the distances between the first fixing bar 601, the second fixing bar 602, the third fixing bar 603 and the fourth fixing bar 604 to the fixture fixing plate 1 are 20cm, 19cm, 19cm and 18cm.

Specifically, the exteriors of the first fixing bar 601 , the second fixing bar 602 , the third fixing bar 603 and the fourth fixing bar 604 are arc-shaped, and the first fixing bar 601 , the second fixing bar 602 , and the third fixing bar 603 and the two ends of the fourth fixing bar 604 are respectively fixed on the two fixing bar mounting pieces 5 .

The first fixing bar 601, the second fixing bar 602, the third fixing bar 603 and the fourth fixing bar 604 can form four fixing areas, through the first fixing bar 601, the second fixing bar 602, the third fixing bar 603 and the The fourth fixing strip 604 enables the gradient baffle 8 to form four different blocking areas, increasing the

Specifically, the gradient blocking piece 8 includes a first blocking piece 801 , a second blocking piece 802 and a third blocking piece 803 , and one end of the first blocking piece 801 , the second blocking piece 802 and the third blocking piece 803 are all provided with through holes , and the other ends of the first blocking piece 801 , the second blocking piece 802 and the third blocking piece 803 are all pointed, and the inclination angles of the tips of the first blocking piece 801 , the second blocking piece 802 and the third blocking piece 803 are sequentially In addition, the widths of the first blocking piece 801 , the second blocking piece 802 and the third blocking piece 803 are all 55cm, and the lengths of the first blocking piece 801 , the second blocking piece 802 and the third blocking piece 803 are 140mm and 140mm respectively and 90mm.

The outer shapes of the first blocking piece 801 , the second blocking piece 802 and the third blocking piece 803 are different, so that the areas blocked by the first blocking piece 801 , the second blocking piece 802 and the third blocking piece 803 are different, and the first blocking piece 801, the second baffle 802 and the third baffle 803 form the upper half arc parabolic structure on the same arc strip, and the lower half arc parabolic structure is also formed below, so it can be controlled during evaporation The radius of the stopper is good to realize the change of color from light to dark, which plays the role of controlling the gradient color and increases the quality of the coating.

Embodiment three:

As shown in Fig. 1-Fig. 4, a coating device with vertical gradient includes an external fixing ring 2, a plurality of jig fixing plates 1 are arranged inside the outer fixing ring 2, and the outside of the jig fixing plate 1 is fan-shaped , the outer wall of the fixture fixing plate 1 is provided with a through hole, the small fan-shaped end of the fixture fixing plate 1 is provided with an arc-shaped groove, and the small end groove of the fixture fixing plate 1 is provided with a fixed plate transmission seat 3;

The upper end of the fixed plate transmission base 3 is provided with a plurality of mounting piece fixing plates 4, and the upper end of the mounting piece fixing plate 4 is fixed with a fixing strip mounting piece 5, and the outer wall of the fixing strip mounting piece 5 is provided with a blocking piece fixing strip 6, the blocking piece One side of the fixing bar 6 is provided with a gradient blocking piece 8 .

The external fixing ring 2 plays the role of fixing the jig fixing plate 1. At the same time, multiple jig fixing plates 1 can be evenly installed in the external fixing ring 2, which is convenient for the maintenance of the jig fixing plate 1. The mounting plate fixing plate 4 on the plate transmission base 3 plays the role of the blocking piece fixing strip 6, and the position of the gradient blocking piece 8 is fixed by the blocking piece fixing strip 6, so that the gradient blocking piece 8 distributed in a row of arcs can be accurately It is located below a row of arc-shaped workpiece mounting fixtures 7. By controlling the distance between the two gradient shutters 8, the unblocked area of the product on the workpiece mounting fixture 7 is controlled to increase the accuracy of product coating. .

Specifically, a method for adjusting the gradient color of a coating device with a gradient up and down is characterized in that: the method includes the following steps:

The first step: the product is put on the machine, and the product that needs to be coated is set on the workpiece installation fixture 7;

The second step: install the blocking piece fixing strip 6, and set the blocking piece fixing strip 6 on the blocking piece fixing strip 6 according to the product;

The third step: electron gun coating processing, drive the fixture fixing plate 1 and the mounting plate fixing plate 4 to rotate through the driving device;

The fourth step: evaporation processing;

Step 5: Turn off the device;

Step 6: Take out the product processed on the workpiece mounting fixture 7.

Specifically, the gradient baffles 8 are arranged and fixed on the first fixing bars 601 in a plane manner to form a first baffle combination;

The gradient baffles 8 are arranged and fixed on the second fixing bar 602 in a plane manner to form a second baffle combination;

The gradient baffles 8 are arranged and fixed on the three fixing bars 603 in a plane manner to form a third baffle combination;

The gradient blocking pieces 8 are arranged and fixed on the fourth fixing bar 604 in a plane manner to form a fourth blocking piece combination.

Specifically, the positions of the first fixing bar 601 , the second fixing bar 602 , the third fixing bar 603 and the fourth fixing bar 604 of the gradient shutter 8 correspond to the positions of the products on the four rows of workpiece mounting jigs 7 .

The first fixing bar 601, the second fixing bar 602, the third fixing bar 603 and the fourth fixing bar 604 can form four sets of annular spaces for placement, which are referred to as the first set of placement annular spaces, the second set of placement annular spaces, The third group of placing annular spaces and the fourth group of placing annular spaces are in a one-to-one correspondence with the four groups of placing annular spaces and the four groups of blocking plates. The first fixing bar 601, the second fixing bar 602, the third fixing bar The gradient blocking pieces 8 on the strip 603 and the fourth fixing strip 604 can form different blocking ranges, and the sizes of the first blocking piece 801 , the second blocking piece 802 and the third blocking piece 803 can be arranged in sequence, so that the blocks are blocked from small to large. , so that the color of the vapor deposition changes from light to dark.

As shown in FIG. 5 , the present invention is applicable to a method for improving the structural performance of the film layer, wherein each layer of the film adopts TI3O5 (titanium pentoxide) layer 901, SIO2 (silicon dioxide) layer 902, TI3O5 ( Titanium pentoxide) layer 903, SIO2 (silicon dioxide) layer 904, TI3O5 (titanium pentoxide) layer 905, ZRO2 (zirconium dioxide) layer 906, UV texture layer 907 and PC board 908.

The focus of the film layer results is that the first layer uses ZRO2 (zirconium dioxide) as the bottom layer. Due to the good density and flexibility of the material itself, the ZRO2 (zirconium dioxide) layer 906 matches the adhesion performance of the PC board 908 and can be used in batches. The properties of this material, such as boiling test, ultraviolet light test, salt spray and other performance tests, can meet customer needs and can be mass-produced.

Working principle: first install the product on the workpiece mounting fixture 7, set the order of the first baffle 801, the second baffle 802 and the third baffle 803 according to the degree of gradual change, and at the same time place the first baffle 801, the third baffle The second blocking piece 802 and the third blocking piece 803 are set on the first fixing strip 601, the second fixing strip 602, the third fixing strip 603 and the fourth fixing strip 604, and then the device is set on the top of the electron gun coating device. The driving device drives the device to rotate, so that the workpiece mounting jig 7 and the gradient shutter 8 can be rotated, and then in the process of use, the first fixing bar 601, the second fixing bar 602, the third fixing bar 603 and the fourth fixing bar The first blocking piece 801, the second blocking piece 802 and the third blocking piece 803 on the strip 604 can form four sets of annular spaces for placement, which are called the first set of placement annular spaces, the second set of placement annular spaces, and the third set of placement annular spaces. The first group is placed in the annular space, the fourth group is placed in the annular space, the first group is placed in the annular space, the second group is placed in the annular space, the third group is placed in the annular space, and the fourth group is placed in the annular space. The position of the tool 7 corresponds to the rotation, which drives the product to rotate around the outside of the gradient fixture. The first group is placed in the annular space, the second group is placed in the annular space, the third group is placed in the annular space, and the fourth group is placed in the annular space. The first baffle 801, the second baffle 802 and the third baffle 803 in the annular space can block the film material, so that the film material can form different gradient colors on the product, and in the production process, it is not blocked The color of the area is within the controllable range. When other conditions are met, it is sufficient to fine-tune the gradient small baffle, which is more convenient to use and operate. Layer 902 , TI3O5 (titanium pentoxide) layer 903 , SIO2 (silicon dioxide) layer 904 , TI3O5 (titanium pentoxide) layer 905 , ZRO2 (zirconium dioxide) layer 906 are plated onto UV texture layer 907 .

The above description enables those skilled in the art to realize or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. An up-down gradient coating device, characterized in that: it comprises an external fixing ring (2), and the interior of the external fixing ring (2) is provided with several fixture fixing plates (1), the fixture The outside of the fixing plate (1) is fan-shaped, the outer wall of the fixture fixing plate (1) is provided with a through hole, the small fan-shaped end of the fixture fixing plate (1) is provided with an arc-shaped groove, and the fixture fixing plate (1) is provided with an arc-shaped groove. ) is provided with a fixed plate transmission seat (3) in the small end groove; The upper end of the fixed plate transmission seat (3) is provided with a plurality of mounting piece fixing plates (4), and the upper end of the mounting piece fixing plate (4) is fixed with a fixing strip mounting piece (5), the fixing strip mounting piece ( 5) The outer wall is provided with a blocking piece fixing strip (6), and one side of the blocking piece fixing strip (6) is provided with a gradient blocking piece (8). 2. A coating device with a gradient up and down according to claim 1, characterized in that: the side of the fixture fixing plate (1) close to the mounting plate fixing plate (4) is provided with four rows of workpiece mounting fixtures (7). ), the four rows of the workpiece mounting fixtures (7) are all arc-shaped, and the distances between the four rows of the workpiece mounting fixtures (7) and the outer wall of the large end of the fixture fixing plate (1) are 10cm and 38cm respectively. , 65cm and 91cm. 3. The coating device with a gradient of up and down according to claim 1, characterized in that: the mounting piece fixing plates (4) are provided with at least six, and the mounting piece fixing plates (4) are evenly distributed on the fixed plate drive On the seat (3), the fixing strip mounting piece (5) is located on the center line of the mounting piece fixing plate (4), and the angle between the fixing strip mounting piece (5) and the mounting piece fixing plate (4) is 90° °. 4. The up-down gradient coating device according to claim 1, wherein the baffle fixing strip (6) comprises a first fixing strip (601), a second fixing strip (602), and a third fixing strip (602). A strip (603) and a fourth fixing strip (604), the outer parts of the first fixing strip (601), the second fixing strip (602), the third fixing strip (603) and the fourth fixing strip (604) are arcs The distance between the first fixing strip (601), the second fixing strip (602), the third fixing strip (603) and the fourth fixing strip (604) to the fixture fixing plate (1) is 20cm, 19cm, 19cm and 18cm. 5. A coating device with a gradient up and down according to claim 4, characterized in that: the first fixing strip (601), the second fixing strip (602), the third fixing strip (603) and the fourth fixing strip The outsides of the bars (604) are arc-shaped, and the two ends of the first fixing bar (601), the second fixing bar (602), the third fixing bar (603) and the fourth fixing bar (604) are respectively fixed on two on the mounting strip (5). 6. The up-down gradient coating device according to claim 1, characterized in that: the gradient shield (8) comprises a first shield (801), a second shield (802) and a third shield (803), one end of the first blocking piece (801), the second blocking piece (802) and the third blocking piece (803) are all provided with through holes, and the first blocking piece (801), the second blocking piece (801), the second blocking piece The other ends of the (802) and the third blocking piece (803) are both pointed, and the inclination angles of the tips of the first blocking piece (801), the second blocking piece (802) and the third blocking piece (803) are in sequence Increase; the widths of the first blocking piece (801), the second blocking piece (802) and the third blocking piece (803) are all 55cm, and the first blocking piece (801), the second blocking piece (802) and the The lengths of the third blocking pieces (803) are respectively 140mm, 140mm and 90mm.

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