TWI695661B - Circuit board rolling device and method of use - Google Patents

Abstract

This creation is a circuit board rolling device and its use method. The circuit board rolling device includes a conveying track, a rolling component, an upper ink removal device and a lower ink removal device, and the rolling component includes an upper roller and a lower The rollers are respectively arranged on the upper and lower sides of the conveying track; the upper ink removal device includes an upper scraper and an upper receiving tray, the upper scraper is placed against the upper roller, and can be used to scrape off the ink adhering to the upper roller and make It falls into the upper receiving tray, the lower ink removal device includes a scraper and a lower receiving tray, and its configuration is symmetrical with the upper ink removal device; this creation is provided with an upper and lower scraper, so when the ink on the upper and lower rollers is scraped off , The roller can be used for sticking ink again, thereby eliminating the need to use disposable ink sticking equipment.

Description

Circuit board rolling device and method of use

This creation relates to a circuit board processing device, especially a device that can press and remove excess solder resist ink on the circuit board.

In the field of circuit board processing, how to remove excess solder resist ink on the circuit board is an important technique; the so-called excess solder resist ink refers to the periphery of the plug hole coated on the circuit board to prevent short circuit Ink; these inks are easy to plug holes during the manufacturing process, then the ink will ooze from both sides of the plug holes, and arc-shaped bumps will be formed at the ends of the plug holes. It is a processing defect that must be rolled and removed during the processing of the circuit board.

Please refer to FIG. 8, and the prior art circuit board leveling device, through a conveyor belt (not shown), the circuit board 91 is sent between two rollers 92 spaced up and down; the two rollers 92 A transparent plastic film 93 is further arranged between them. When the roller 92 rotates, the transparent plastic films 93 will also move along the rolling direction of the roller 92.

When the circuit board 91 enters between the two rollers 92, both sides of the circuit board will be simultaneously attached by the transparent plastic film 93, and then further pressed by the two rollers 92, so when the roller 92 presses the circuit board 91 At the same time, the transparent plastic film 93 will be attached to the surface of the circuit board 91 at the same time. At this time, the transparent plastic film 93 can stick the ink 94 on the surface of the circuit board.

Then, when the circuit board 91 continues to be pushed by the roller 92 to leave the two rollers 92, the transparent plastic film 93 is also separated from the circuit board 91, and the extra ink 94 is taken away from the circuit board 91. This achieves the purpose of removing excess ink 94 on the surface of the circuit board 91.

However, the prior art circuit board leveling device relies heavily on disposable transparent plastic films to carry excess ink away from the circuit board, so the cost of using consumables is huge, and the large amount of transparent plastic films also has a negative impact on the environment The impact of the existing leveling device of the prior art has its shortcomings.

In view of the shortcomings and deficiencies of the prior art, the present invention provides a circuit board rolling device and circuit board rolling method, which achieves the purpose of scraping ink through the upper and lower scrapers, so that the use of consumable transparent plastic films can be avoided. This achieves the purpose of saving costs and protecting the environment.

In order to achieve the above-mentioned creative purpose, the technical means used in this creation is a circuit board rolling device, which includes a conveying track, which extends along a conveying direction, and its opposite ends in the conveying direction are respectively one Front end and a rear end; a rolling flat assembly, which includes an upper roller rolling device, which is arranged above the conveying track; an upper roller, which is connected with the upper roller rolling device and can be received by the upper roller rolling device Is driven to rotate relative to the conveying track; a roller rolling device is provided below the conveying track; a roller is connected to the lower roller rolling device and can be driven relative to the conveying by the lower roller rolling device The track rotates, and the lower roller corresponds to the position of the upper roller; an upper ink removal device, which is adjacent to the upper roller and contains an upper scraper, which selectively abuts the outer ring surface of the upper roller, and It can be used to scrape off the ink sticking to the outer ring surface of the upper roller; An upper receiving tray, which is arranged below the upper scraper, and can be used to receive the ink scraped by the upper scraper; a lower ink removal device, which is adjacent to the lower roller and contains a lower scraper, which is selectively attached to The outer ring surface of the lower roller can be used to scrape the ink adhering to the outer ring surface of the lower roller; a lower receiving tray is arranged below the lower scraper and can be used to receive scraping by the lower scraper Of ink.

In order to achieve the above-mentioned creative purpose, the technical means used in this creation is a circuit board rolling device, which includes a conveying track, which extends in a conveying direction, and its opposite ends are a front end and a rear end, respectively; A rolling device, which includes an upper roller rolling device, which is arranged above the conveying track; an upper roller, which is connected to the upper roller rolling device and can be driven by the upper roller rolling device relative to the conveyor Orbital rotation; one-roller rolling device, which is arranged below the conveying track; one-roller, which is connected to the lower roller rolling device, and can be driven by the lower roller rolling device to rotate relative to the conveying track, and the lower The roller corresponds to the position of the upper roller; an ink removal device adjacent to the upper roller or the lower roller, and the ink removal device includes a scraper that selectively abuts the outer ring surface of the upper roller or The outer ring surface of the lower roller, and can be used to scrape the ink adhering to the outer ring surface of the upper roller or the outer ring surface of the lower roller; a receiving tray, which is arranged under the scraper and can be used Accept the ink scraped by the scraper.

In order to achieve the above-mentioned creative purpose, the technical method used in this creation is a circuit board rolling method, which includes the following steps: preparation steps: preparing a conveyor track, an upper roller, a lower roller, an upper scraper and a scraper, the The upper roller and the lower roller are respectively arranged above and below the conveying track, and the upper scraper and the lower scraper are respectively arranged above and below the conveying track; pressing step: placing a circuit board on the conveying track, the The circuit board is driven by the conveying track to move between the upper roller and the lower roller, and the upper roller and the lower roller rotate in opposite directions respectively, thereby squeezing the circuit board, and the excess ink on the circuit board respectively Sticking to the upper roller and the lower roller; scraping step: the upper roller and the lower roller which have been stuck with ink continue to rotate, and are attached to the upper scraper and the lower scraper, the upper scraper and the lower, respectively The squeegee keeps abutting on the upper roller and the lower roller, and scrapes off the ink provided on the upper roller and the lower roller.

The advantage of this creation is that, by providing the upper ink removal device and the lower ink removal device, when the upper roller and the lower roller are pressed against the circuit board and the ink on the circuit board is further adhered to the upper roller and the lower roller , Under continuous rotation, the upper and lower scrapers in contact with the upper and lower rollers, respectively, will then scrape the ink adhering to the upper and lower rollers, and the scraped ink will fall into the two scrapers The lower receiving tray; in other words, the upper roller and the lower roller that the ink is scraped by the upper blade and the lower blade, respectively, can continue to rotate; this creation uses the aforementioned processing structure and method to make the entire process of removing circuit board ink unnecessary To any disposable sticky material, thereby saving the processing cost of the entire ink removal process.

Further, in the aforementioned circuit board rolling device, the rolling device further includes a moving power device connected to the upper roller and driving the upper roller to move up and down relative to the conveying track.

Further, in the aforementioned circuit board rolling device, the mobile power device is a cylinder.

Further, in the aforementioned circuit board rolling device, wherein the upper scraper of the upper ink removing device abuts on the upper roller is between the lowermost end of the upper roller and the uppermost of the upper roller in the conveying direction Between the front end.

Further, in the aforementioned circuit board rolling device, wherein the lower scraper of the lower ink removing device abuts on the lower roller is between the lowermost end of the lower roller and the last of the lower roller in the conveying direction Between the ends.

Further, in the aforementioned circuit board rolling device, an adhesive layer is provided on the upper receiving plate to receive the ink scraped off by the upper scraper.

Further, the aforementioned circuit board rolling device, wherein the upper ink removal device further includes an upper scraper power device connected to the upper scraper, and the upper scraper power device can drive the upper scraper to move relative to the upper roller To make the upper scraper abut or move away from the upper roller.

Further, in the aforementioned circuit board rolling method, in the preparation step, the upper roller can be displaced up and down according to the thickness of the circuit board.

Further, the aforementioned circuit board rolling method, wherein: in the preparation step, it further includes an upper receiving tray and a lower receiving tray, an adhesive layer is provided on the upper receiving tray, and an adhesive layer is provided on the lower receiving tray In the scraping step, the viscous layer of the upper receiving tray receives the ink that is scraped off by the upper scraper on the upper roller, so that the viscous layer of the lower receiving tray receives the lower roller The upper scraper scrapes off the fallen ink.

10: conveyor track

11: front end

12: backend

20: Roll off the assembly

21: Upper roller

22: Lower roller

23: mobile power plant

24: Upper roller rolling device

25: Lower roller rolling device

30: Ink removal device

31: Upper scraper

32: upper receiving tray

33: sticky layer

34: Upper scraper power unit

40: Lower ink removal device

41: Lower scraper

42: Under the tray

43: sticky layer

44: Lower scraper power unit

91: Circuit board

92: Wheel

93: Transparent plastic film

94: Ink

21A: Upper roller

22A: Lower roller

31A: Upper scraper

41A: Lower scraper

91A: Circuit board

L: conveying direction

Figure 1 is the stereoscopic appearance of this creation.

FIG. 2 is a perspective view of the original rolling device, upper ink removal device, and lower ink removal device.

FIG. 3 is an exploded view of some components of FIG. 2.

Fig. 4 is a cross-sectional view of the original creation and the use state of a circuit board.

FIG. 5 is an enlarged view of part A of FIG. 4.

Figure 6 is a schematic diagram of the movement of adjusting the height of the upper roller in this creation.

Fig. 7 is a schematic diagram of the operation of replacing the upper and lower rollers and adjusting the positions of the upper and lower scrapers.

8 is a schematic diagram of a prior art circuit board leveling device.

The technical features adopted by this creation in order to achieve the intended purpose of creation are further described below in conjunction with the drawings and preferred embodiments of the creation.

Please refer to FIG. 1, the circuit board rolling device of the present invention includes a conveying track 10, a rolling device 20 and at least one ink removal device.

The conveying rail 10 extends along a conveying direction L, and its opposite ends along the conveying direction L are a front end 11 and a rear end 12, respectively.

Please refer to FIG. 1 and FIG. 2, the rolling assembly 20 includes an upper roller 21, a lower roller 22, a moving power device 23, an upper roller rolling device 24 and a lower roller rolling device 25, the upper roller 21 and the upper roller rolling The device 24 is disposed above the conveying rail 10, and the upper roller rolling device 24 can drive the upper roller 21 to rotate relative to the conveying rail 10, the lower roller 22 and the lower roller rolling device 25 are disposed below the conveying rail 10, and the lower roller rolling device 25 The lower roller 22 can be driven to rotate relative to the conveying rail 10, and in this main embodiment, the positions of the upper roller 21 and the lower roller 22 correspond up and down, and during operation, the upper roller 21 and the lower roller 22 are opposite to the conveying rail in opposite directions 10 rotation, so that the objects sandwiched between the upper roller 21 and the lower roller 22 can be pushed toward the front end 11 of the conveying rail 10 along the conveying direction L.

On the other hand, in this main embodiment, the upper roller rolling device 24 and the lower roller rolling device 25 are respectively a motor, but it is not limited to this. In other embodiments, the upper roller rolling device 24 and the lower roller rolling device 25 can also be other power devices.

In this main embodiment, the surface materials of the upper roller 21 and the lower roller 22 are both rubber. The rubber material can be used to stick the ink on the circuit board, but the surface materials of the upper roller 21 and the lower roller 22 are not limited to rubber .

Please refer to FIG. 1 and FIG. 6, the mobile power device 23 is connected to the upper roller 21 and can drive the upper roller 21 to move up and down relative to the conveying rail 10. In the main embodiment, the mobile power device 23 is a cylinder, but It is not limited to cylinders.

Please refer to FIG. 2 and FIG. 3, in this main embodiment, the number of at least one ink removal device is two, and can be further divided into an upper ink removal device 30 and a lower ink removal device 40, but it does not take this as However, in other embodiments, there may be only a single ink removal device.

The upper ink removing device 30 is adjacent to the upper roller 21 and includes an upper blade 31, an upper receiving plate 32, an adhesive layer 33, and an upper blade power device 34.

Please refer to FIG. 1, FIG. 2 and FIG. 3, the upper scraper 31 selectively abuts on the outer ring surface of the upper roller 21, and can be used to scrape the ink adhering to the outer ring surface of the upper roller 21. In the main embodiment, the position where the upper scraper 31 abuts on the upper roller 21 is between the lowermost end of the upper roller 21 and the foremost end of the upper roller 21 in the conveying direction L. In other words, the position of the upper scraper 31 is The upper roller is located near the front end 11 and close to the quarter circle below. In the main embodiment, the upper scraper 31 is disposed at the front end of the upper roller 21 along the conveying direction L, but its position is not Limited.

Please further refer to FIG. 4, the upper receiving tray 32 is disposed below the upper scraper 31 and can be used to receive the ink scraped by the upper scraper 31, and in this main embodiment, the adhesive layer 33 is disposed on the upper receiving tray In 32, when the upper blade 31 scrapes off the ink, the ink will fall into the upper receiving tray 32 and be fixed by the adhesive layer 33, but in other embodiments, the upper receiving tray 32 may not have the adhesive性层33。 Sex layer 33.

In this main embodiment, the adhesive layer 33 is a PVC film, but it is not limited to this. In other embodiments, the adhesive layer 33 can also be made of other materials, as long as it is adhesive .

Please refer to FIG. 3 and FIG. 5, the upper scraper power device 34 is connected to the upper scraper 31, and the upper scraper power device 34 can drive the upper scraper 31 to move relative to the upper roller 21, so that the upper scraper 31 abuts or moves away from the upper roller 21. However, in other embodiments, the upper blade power device 34 may not be provided. In these embodiments, the upper blade 31 may also be manually adjusted to adjust its relative position with the upper roller 21.

2 and FIG. 3, the lower ink removal device 40 is adjacent to the lower roller 22 and includes a lower blade 41, a lower receiving plate 42, an adhesive layer 43 and a lower blade power device 44.

Please further refer to FIG. 4, the lower scraper 41 selectively abuts on the outer ring surface of the lower roller 22 and can be used to scrape off the ink adhering to the outer ring surface of the lower roller 22. In this main embodiment, The position where the lower blade 41 abuts on the lower roller 22 is between the lowermost end of the lower roller 22 and the rearmost end of the lower roller 22 in the conveying direction L, in other words, the position of the lower blade 41 is between the lower roller Close to the rear end 12 and close to the quarter circle below, and in this main embodiment, the lower scraper 41 is disposed in the middle of the quarter circle of the lower roller 22, but its position is not limited to this .

The lower receiving tray 42 is disposed below the lower scraper 41 and can be used to receive the ink scraped by the lower scraper 41. In this main embodiment, the adhesive layer 43 of the lower ink removing device 40 is disposed in the lower receiving tray 42. After the lower blade 41 scrapes off the ink, the ink will fall into the lower receiving tray 42 and be fixed by the adhesive layer 43. However, in other embodiments, the lower receiving tray 42 may not have the adhesive layer 43.

In this main embodiment, the adhesive layer 43 is a PVC film, but it is not limited to this. In other embodiments, the adhesive layer 43 can also be made of other materials, as long as it is adhesive .

The lower scraper power device 44 is connected to the lower scraper 41, and the lower scraper power device 44 can drive the lower scraper 41 to move relative to the lower roller 22, and make the lower scraper 41 abut or move away from the lower roller 22, but in other embodiments, There may be no lower blade power device 44. In these embodiments, the lower blade 41 can also be adjusted manually relative to the lower roller 22.

In another embodiment of the present creation, it is substantially the same as the main embodiment of the present creation, but the other embodiment only has an ink removal device, and the ink removal device can be adjacent to the upper roller or The lower roller, and the ink removal device includes a scraper and a receiving plate, the structure and function of the scraper and receiving plate are the same as the upper scraper 31 and the upper receiving plate 32 in the main embodiment of the present invention, and the scraper can be used according to The user needs to lean against the outer ring surface of the upper roller or the outer ring surface of the lower roller, and the receiving plate is arranged below the scraper.

Please refer to FIG. 7, in another embodiment of the present creation, the user can also replace the different size of the upper roller 21A and the lower roller 22A to correspond to different sizes of circuit boards 91A, and here is another embodiment In the middle, since the sizes of the upper roller 21A and the lower roller 22A have changed, the distance between the upper blade 31A and the lower blade 41A and the upper roller 21A and the lower roller 22A should also be adjusted accordingly, so that the upper blade 31A and the lower blade The scraper 41A and the rollers 21A and 22A are maintained at the optimal scraping position.

The following is how to use the circuit board rolling device.

When the main embodiment of this creation is used, two sets of this creation are used in combination to improve the efficiency of ink removal. However, since the two sets of this creation do not need to have two independent conveying rails 10, they are mainly implemented in this creation. In the example, the two sets of original creation systems share a set of transport rails 10.

The method of using the circuit board includes a preparation step, a pressing step and a scraping step. The details of each step are explained in order below.

Preparation steps: Please refer to FIG. 1 and FIG. 4, prepare a conveying rail 10, an upper roller 21, a lower roller 22, an upper scraper 31 and a lower scraper 41, the upper roller 21 and the lower roller 22 are respectively provided on the conveying rail 10 Above and below, the upper scraper 31 and the lower scraper 41 are arranged above and below the conveyor track 10; all the components in this preparation step are the same as the related structure mentioned in the circuit board rolling device of this creation, so The details are not repeated here, but the components in this preparation step are not limited to the same components as the aforementioned circuit board rolling device.

Please refer to FIG. 6 further. In this preparation step, the user can move the distance of the upper roller 21 relative to the conveying rail 10 up and down according to the thickness of the circuit board 91 to be processed, thereby adjusting the circuit board 91 to receive the upper roller 21 And the spacing between the lower rollers 22.

More precisely, this preparation step may further include an upper receiving plate 32 and a lower receiving plate 42, an adhesive layer 33 is provided on the upper receiving plate 32, and an adhesive layer 43 is provided on the lower receiving plate 42, the preparation The receiving plates 32 and 42 and the adhesive layers 33 and 43 of the step are respectively the same as the related structures mentioned in the aforementioned circuit board rolling device, so they are not repeated here.

Pressing step: Please refer to FIG. 1, FIG. 4 and FIG. 5, a circuit board 91 is placed on the conveying rail 10, the circuit board 91 is driven by the conveying rail 10 and can be directed toward the upper roller 21 and the lower roller along the conveying direction L Move between 22; after the circuit board 91 moves between the upper roller 21 and the lower roller 22, since the upper roller 21 and the lower roller 22 rotate in opposite directions, respectively, the circuit board 91 can be further pressed against and along the conveying direction L pushes forward.

When the upper roller 21 and the lower roller 22 squeeze the circuit board 91, the excess ink 94 on the circuit board 91 can thus stick to the upper roller 21 and the lower roller 22, more precisely, due to the upper roller 21 and the lower roller 22 The material is slightly elastic rubber. Therefore, when the circuit board 91 is slightly pressed, the ink 94 can stick to the upper roller 21 and the lower roller 22 due to the pressure.

Scraping step: Please refer to FIG. 5 and FIG. 6, the upper roller 21 and the lower roller 22 sticking to the ink 94 continue to rotate, and lean against the upper scraper 31 and the lower scraper 41 respectively, when the upper scraper 31 and the lower scraper 41. When the two rollers 21 and 22 continue to be in contact with each other, the areas where the ink 94 is adhered to the upper roller 21 and the lower roller 22 will gradually approach the upper scraper 31 and the lower scraper 41, and then receive the upper scraper 31 and the lower The scraping of the scraper 41 causes the ink 94 to be scraped off by the upper scraper 31 and the lower scraper 41.

More precisely, because in the preparation step, the upper receiving plate 32 and the lower receiving plate 42 are provided with adhesive layers 33, 43, respectively, when the scraped ink 94 falls to the corresponding upper receiving plate 32 or After the receiving tray 42 is lowered, it will be adhered by the two adhesive layers 33, 43, so that the ink 94 will not be spattered randomly.

After the ink layers 94 and 43 are adhered with too much ink 94, the user can maintain the viscosity by replacing the adhesive layers 33 and 43.

The following are the advantages of creation.

When this creation is used, since the step of sticking ink 94 does not need to use disposable materials, but can directly stick through the upper roller 21 and the lower roller 22, and then through the upper blade 31 and the lower blade 41 Operate to scrape ink from the upper roller 21 and the lower roller 31; in other words, the upper roller 21 and the lower roller 22 after the ink 94 is scraped can continue to be used as a tool to stick the ink 94 under continuous rotation. Creation does not need to use disposable ink sticking equipment, and can use the roller itself to achieve the purpose of repeated sticking ink, so it can effectively reduce the cost of using this creation.

The above is only the preferred embodiment of the creation, and does not limit the creation in any way. Although the creation has been disclosed in the preferred embodiment as above, it is not intended to limit the creation. Generally, a knowledgeable person can use the technical content disclosed above to make some changes or modifications as an equivalent embodiment of an equivalent change without departing from the scope of this creative technical solution. Any simple modifications, equivalent changes, and modifications made to the above embodiments by the technical essence of this creation still fall within the scope of this creative technical solution.

10: conveyor track

11: front end

12: backend

20: Roll off the assembly

21: Upper roller

22: Lower roller

23: mobile power plant

24: Upper roller rolling device

25: Lower roller rolling device

L: conveying direction

Claims (11)

A circuit board rolling device includes a conveying track that extends along a conveying direction, and opposite ends in the conveying direction are a front end and a rear end, respectively; a rolling component includes a top The roller rolling device is arranged above the conveying track; an upper roller is connected with the upper roller rolling device and can be driven to rotate relative to the conveying track by the upper roller rolling device; the roller rolling device, which It is arranged below the conveying track; a lower roller, which is connected with the lower roller rolling device and can be driven to rotate relative to the conveying track by the lower roller rolling device, and the lower roller corresponds to the position of the upper roller An upper ink removal device, which is adjacent to the upper roller and contains an upper scraper, which selectively abuts on the outer ring surface of the upper roller, and can be used to scrape off the outer ring surface of the upper roller Ink; an upper receiving tray, which is arranged below the upper scraper and can be used to receive the ink scraped by the upper scraper; a lower ink removal device, which is adjacent to the lower roller and contains a lower scraper, which selectively Adjacent to the outer ring surface of the lower roller, and can be used to scrape the ink adhering to the outer ring surface of the lower roller; a lower receiving tray, which is arranged under the lower scraper and can be used to receive the lower ring The ink scraped by the scraper. The circuit board rolling device according to claim 1, wherein the rolling plate assembly further comprises a moving power device connected to the upper roller and driving the upper roller to move up and down relative to the conveying track. The circuit board rolling device according to claim 2, wherein the mobile power device is a cylinder. The circuit board rolling device according to any one of claims 1 to 3, wherein the place where the upper scraper of the upper ink removing device abuts the upper roller is between the lowermost end of the upper roller and the upper Between the front ends of the rollers in the conveying direction. The circuit board rolling device according to any one of claims 1 to 3, wherein the lower scraper of the lower ink removing device abuts against the lower roller is between the lowermost end of the lower roller and the lower Between the last ends of the rollers in this conveying direction. The circuit board rolling device according to any one of claims 1 to 3, wherein an adhesive layer is provided on the upper receiving tray to receive ink scraped off by the upper scraper. The circuit board rolling device according to any one of claims 1 to 3, wherein the upper ink removing device further includes an upper scraper power device connected to the upper scraper, and the upper scraper power device can drive the The upper scraper moves relative to the upper roller, so that the upper scraper abuts or moves away from the upper roller. A circuit board rolling device includes a conveying track that extends along a conveying direction, and opposite ends thereof are respectively a front end and a rear end; a rolling device includes an upper roller rolling device, which is provided Above the conveying track; an upper roller, which is connected to the upper roller rolling device and can be driven to rotate relative to the conveying track by the upper roller rolling device; a lower roller rolling device, which is provided on the conveying track Below; the next roller, which is connected to the lower roller rolling device and can be driven to rotate relative to the conveying track by the lower roller rolling device, and the lower roller corresponds to the position of the upper roller; An ink removing device adjacent to the upper roller or the lower roller, and the ink removing device includes a scraper that selectively abuts the outer ring surface of the upper roller or the outer ring surface of the lower roller, and is usable In order to scrape the ink adhering to the outer ring surface of the upper roller or the outer ring surface of the lower roller; a receiving tray is arranged below the scraper and can be used to receive the ink scraped by the scraper. A circuit board rolling method includes the following steps: preparation step: preparing a conveying track, an upper roller, a lower roller, an upper scraper and a lower scraper, the upper roller and the lower roller are respectively arranged above the conveying track and Below, the upper scraper and the lower scraper are respectively arranged above and below the conveying track; the pressing step: placing a circuit board on the conveying track, the circuit board is driven by the conveying track towards the upper roller and the Moving between the lower rollers, the upper rollers and the lower rollers respectively rotate in opposite directions, thereby squeezing the circuit board, and the excess ink on the circuit board sticks to the upper rollers and the lower rollers respectively; scraping step : The upper roller and the lower roller sticking to the ink continue to rotate, and lean against the upper scraper and the lower scraper, respectively, the upper scraper and the lower scraper continue to lean against the upper roller and the lower roller, and set The ink on the upper roller and the lower roller is scraped off. The method for rolling a circuit board according to claim 9, wherein in the preparation step, the upper roller can be displaced up and down according to the thickness of the circuit board. The circuit board rolling method according to claim 9, wherein: in the preparation step, further comprising an upper receiving plate and a lower receiving plate, an adhesive layer is provided on the upper receiving plate, and an adhesive layer is provided on the lower receiving plate In the scraping step, the viscous layer of the upper receiving tray receives the ink that is scraped off by the upper scraper on the upper roller, so that the viscous layer of the lower receiving tray receives the lower roller The upper scraper scrapes off the fallen ink.

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