TW202027573A - Circuit board rolling device and using method thereof wherein the circuit board rolling device includes a conveying track, a rolling assembly, an upper ink removal device and a lower ink removal device - Google Patents

Abstract

This invention relates to a circuit board rolling device and a using method thereof. The circuit board rolling device includes a conveying track, a rolling assembly, an upper ink removal device and a lower ink removal device. The rolling assembly includes an upper roller and a lower roller, both of which are respectively arranged at the upper and lower sides of the conveying track. The upper ink removal device includes an upper scraper and an upper receiving plate, wherein the upper scraper is attached to the upper roller and can be used for scrapping off the ink adhered to the upper roller and dropping it into the upper receiving plate. The lower ink removal device includes a lower scraper and a lower receiving plate, and is configured to be symmetrical to the upper ink removal device. Due to the arrangement of the upper scraper and the lower scraper, the rollers can be used to stick the ink again after the ink on the upper roller and the lower roller is scrapped off, thereby eliminating the need to use the disposable ink sticking tool.

Description

Circuit board rolling device and its use method

This creation relates to a circuit board processing device, especially a device that can press and remove excess solder mask 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 technology; the so-called excess solder resist ink refers to the periphery of the plug hole coated on the circuit board to prevent short circuits. Ink; these inks are easy to plug holes and convex inks during the manufacturing process. At that time, these inks will ooze out from both sides of the plug hole and form arc-shaped convex points at the end of the plug hole. These convex points are It is a processing defect that must be flattened and removed during the circuit board processing.

Please refer to FIG. 8, and the prior art circuit board leveling device uses a conveyor belt (not shown in the figure) to feed the circuit board 91 between two rollers 92 arranged vertically; the two rollers 92 A transparent plastic film 93 is further provided therebetween. When the roller 92 is rotating, 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, its two sides will be attached to the transparent plastic film 93 at the same time, and then further pressed by the two rollers 92, so when the roller 92 is pressed against the circuit board 91 At the same time, the transparent plastic film 93 is also attached to the surface of the circuit board 91. 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 will also be separated from the circuit board 91, and the extra ink 94 will be 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 film to take the excess ink away from the circuit board, so the cost of consumables is very large, and the large amount of transparent plastic film is also negative to the environment. Therefore, the prior art leveling device has its defects.

In view of the shortcomings and deficiencies of the prior art, the present invention provides a circuit board rolling device and a circuit board rolling method, which uses the upper and lower scrapers to scrape off the ink, thus avoiding the use of expendable transparent plastic film. 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 flattening device, which includes a conveying track extending along a conveying direction, and its opposite ends along the conveying direction are respectively one A front end and a rear end; a flattening assembly, 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 received by the upper roller rolling device The lower roller rolling device is arranged under the conveying track; the lower roller is connected with the lower roller rolling device and can be driven by the lower roller rolling device to rotate relative to the conveying track. The track rotates, and the position of the lower roller corresponds to the position of the upper roller; an upper ink removal device, which is adjacent to the upper roller and includes an upper scraper, which selectively abuts against the upper roller and can be used to scrape The ink sticking to the upper roller; an upper receiving plate, 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 includes A lower squeegee, which is selectively attached to the lower roller, and can be used to scrape off the ink adhering to the lower roller; a lower receiving plate, which is arranged under the lower squeegee, and can be used to receive the lower squeegee Ink scraped off.

In order to achieve the above-mentioned creation purpose, the technical means used in this creation is a circuit board rolling device, which includes a conveying track extending along a conveying direction, and the opposite ends of which are respectively a front end and a rear end; A flattening 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 to be opposite to the conveyor Track rotation; a lower roller rolling device, which is arranged below the conveying track; a lower roller, which is connected with the lower roller rolling device, and can be driven by the lower roller rolling device to rotate relative to the conveying track, and 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, which selectively abuts on the upper roller or the lower roller, It can also be used to scrape off the ink sticking to the upper roller or the lower roller; A receiving plate is arranged under the scraper and can be used to receive the ink scraped by the scraper.

In order to achieve the above creative purposes, the technical means used in this creation is a circuit board rolling method, which includes the following steps: Preparation steps: prepare a conveyor 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 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. The upper roller and the lower roller rotate in opposite directions, and then press the circuit board, and the excess ink on the circuit board is respectively Stick to the upper roller and the lower roller; scraping step: the upper roller and the lower roller that are stuck with ink continue to rotate, and respectively abut the upper and lower blades, the upper blade and the lower blade The scraper continuously abuts on the upper roller and the lower roller, and scrapes off the ink arranged 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 press against the circuit board and further adhere the ink on the circuit board to the upper roller and the lower roller , Under continuous rotation, the upper scraper and the lower scraper respectively in contact with the upper roller and the lower roller will then scrape off the ink adhering to the upper roller and the lower roller, and the scraped ink will fall into the two scrapers The lower receiving plate; in other words, the upper and lower rollers where the ink is scraped off by the upper and lower squeegees can continue to rotate; this creation uses the aforementioned processing structure and method to eliminate the need for the entire process of removing ink from the circuit board. To any disposable adhesive material, thereby saving the processing cost of the entire ink removal process.

Furthermore, in the aforementioned circuit board flattening device, the flattening assembly further includes a moving power device which is connected with the upper roller and can drive the upper roller to move up and down relative to the conveying track.

Furthermore, in the aforementioned circuit board rolling device, the moving power device is an air cylinder.

Furthermore, in the aforementioned circuit board rolling device, the position where the upper scraper of the upper ink removing device abuts on the upper roller is between the bottom end of the upper roller and the lowest end of the upper roller along the conveying direction. Between the front end.

Furthermore, in the aforementioned circuit board rolling device, the position where the lower scraper of the lower ink removing device abuts on the lower roller is between the bottom end of the lower roller and the last of the lower roller along the conveying direction Between ends.

Furthermore, in the aforementioned circuit board flattening device, an adhesive layer is provided on the upper receiving plate for receiving the ink scraped off by the upper scraper.

Furthermore, in the aforementioned circuit board rolling device, 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 upper scraper to move relative to the upper roller , So that the upper scraper is close to or away from the upper roller.

Furthermore, 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.

Furthermore, the aforementioned circuit board rolling method, wherein: in the preparation step, it further includes an upper receiving tray and a lower receiving tray, the upper receiving tray is provided with an adhesive layer, and the lower receiving tray is provided with an adhesive In the scraping step, the adhesive layer of the upper receiving plate accepts the ink scraped off by the upper scraper on the upper roller, so that the adhesive layer of the lower receiving plate accepts the lower roller The upper is scraped off by the lower scraper to remove the dropped ink.

In the following, in conjunction with the drawings and preferred embodiments of this creation, the technical features adopted by this creation to achieve the predetermined creation purpose are further explained.

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

The conveying track 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.

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

On the other hand, in this main embodiment, the upper roller rolling device 24 and the lower roller rolling device 25 are each 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 material of the upper roller 21 and the lower roller 22 is rubber, and the rubber material can be used to stick the ink on the circuit board, but the surface material of the upper roller 21 and the lower roller 22 is not limited to rubber .

1 and 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 track 10. In this main embodiment, the mobile power device 23 is an air cylinder, but It is not limited to the cylinder.

Please refer to Figures 2 and 3, in this main embodiment, the number of at least one ink removal device is two, and can be further divided into upper ink removal device 30 and lower ink removal device 40, but it is not 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 scraper 31, an upper receiving plate 32, an adhesive layer 33 and an upper scraper power device 34.

Please refer to Figure 1, Figure 2 and Figure 3, the upper scraper 31 selectively abuts on the upper roller 21, and can be used to scrape off the ink adhering to the upper roller 21, in the main embodiment, the upper scraper 31 The position abutting on the upper roller 21 is between the bottom end of the upper roller 21 and the front end of the upper roller 21 in the conveying direction L. In other words, the position of the upper scraper 31 is between the upper roller near the front end 11 And close to the lower quarter circle, and in the main embodiment, the upper scraper 31 is arranged at the foremost end of the upper roller 21 along the conveying direction L, but its position is not limited to this.

Please further refer to Figure 4, the upper receiving plate 32 is arranged under the upper scraper 31, and can be used to receive the ink scraped off by the upper scraper 31, and in this main embodiment, the adhesive layer 33 is provided on the upper receiving plate In 32, when the ink is scraped off by the upper scraper 31, the ink will fall into the upper receiving plate 32 and be fixed by the adhesive layer 33. However, in other embodiments, the upper receiving plate 32 may not have the adhesive.性层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 has adhesiveness. .

Please refer to Figures 3 and 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 is close to or away from the upper roller 21. However, in other embodiments, the upper scraper power device 34 may not be provided. In these embodiments, the upper scraper 31 can also be manually adjusted with respect to the upper roller 21.

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

Please further refer to FIG. 4, the lower scraper 41 is selectively attached to the lower roller 22 and can be used to scrape off the ink adhering to the lower roller 22. In the main embodiment, the lower scraper 41 is attached to the lower roller 22. The position on 22 is between the bottommost 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 scraper 41 is between the lower roller near the rear end 12 and near the bottom In the quarter circle, and in the main embodiment, the lower scraper 41 is arranged in the middle of the quarter circle of the lower roller 22, but its position is not limited to this.

The lower receiving plate 42 is arranged under the lower squeegee 41 and can be used to receive the ink scraped off by the lower squeegee 41. In this main embodiment, the adhesive layer 43 of the lower ink removing device 40 is arranged in the lower receiving plate 42. After the lower squeegee 41 scrapes off the ink, the ink will fall into the lower receiving plate 42 and be fixed by the adhesive layer 43. However, in other embodiments, the lower receiving plate 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, it is also There may be no lower scraper power device 44. In these embodiments, the lower scraper 41 can also manually adjust the relative position between the lower scraper 41 and the lower roller 22.

In another embodiment of this creation, it is roughly the same as the main embodiment of this creation, but this 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 the receiving plate are the same as the upper scraper 31 and the upper receiving plate 32 in the main embodiment of this creation, and the scraper can be used as required The user needs to stick to the upper roller or the lower roller, and the receiving plate is arranged under the scraper.

Please refer to FIG. 7. In another embodiment of the present creation, the user can also replace the upper roller 21A and the lower roller 22A of different sizes to correspond to the circuit board 91A of different sizes, and here is another embodiment Since the size of the upper roller 21A and the lower roller 22A has changed, the distance between the upper scraper 31A and the lower scraper 41A and the upper roller 21A and the lower roller 22A should also be adjusted accordingly, so that the upper scraper 31A and the lower The scraper 41A and the rollers 21A, 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 creations are combined and used to improve the efficiency of ink removal. However, since the two sets of creations do not need to have two independent conveying tracks 10, the main implementation is In the example, the two groups of original creative systems share a group of conveying tracks 10.

The circuit board use method includes a preparation step, a pressing step and a scraping step. The details of each step are described in sequence below.

Preparation steps: Please refer to Figures 1 and 4 to prepare a conveying track 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 arranged on the conveying track 10 Above and below, the upper scraper 31 and the lower scraper 41 are respectively arranged above and below the conveying 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 It will not be repeated here, but the components in this preparation step are not limited to the same as those of the aforementioned circuit board rolling device.

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

To be more precise, this preparation step may further include an upper receiving plate 32 and a lower receiving plate 42. The upper receiving plate 32 is provided with an adhesive layer 33, and the lower receiving plate 42 is provided with an adhesive layer 43. This preparation The supporting plates 32, 42 and the adhesive layers 33, 43 of the steps are respectively the same as the related structures mentioned in the aforementioned circuit board rolling device, so they will not be repeated here.

Pressing step: Please refer to Figure 1, Figure 4 and Figure 5, place a circuit board 91 on the conveying track 10. The circuit board 91 is driven by the conveying track 10 and can face the upper roller 21 and the lower roller along the conveying direction L When 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, the circuit board 91 can be further simultaneously pressed and along the conveying direction The power to push 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 stick to the upper roller 21 and the lower roller 22. More precisely, because the upper roller 21 and the lower roller 22 The material of is slightly elastic rubber, so when the circuit board 91 is slightly pressed, the ink 94 can be transferred to the upper roller 21 and the lower roller 22 due to the pressure.

Scraping steps: Please refer to Figures 5 and 6, the upper roller 21 and the lower roller 22 with the ink 94 keep rotating, and are attached to the upper squeegee 31 and the lower squeegee 41, respectively, when the upper squeegee 31 and the lower squeegee 41 continuously abuts on the two rollers 21 and 22, the area on the upper roller 21 and the lower roller 22 where the ink 94 is adhered will gradually approach the upper squeegee 31 and the lower squeegee 41, and then receive the upper squeegee 31 and the lower squeegee. The scraping of the scraper 41 causes the ink 94 to be scraped off by the upper scraper 31 and the lower scraper 41.

To be more precise, since in the preparation step, the upper receiving plate 32 and the lower receiving plate 42 are respectively provided with adhesive layers 33 and 43, so when the scraped ink 94 falls on the corresponding upper receiving plate 32 or lower After the tray 42 is received, it will be adhered by the two adhesive layers 33 and 43, so that the ink 94 will not be splashed randomly.

When too much ink 94 is adhered to the adhesive layers 33 and 43, the user can also maintain the adhesiveness by replacing the adhesive layers 33 and 43.

The following are the advantages of this creation.

When this creation is used, since the step of sticking the ink 94 does not require the use of disposable materials, it can be directly sticked through the upper roller 21 and the lower roller 22, and subsequently through the upper squeegee 31 and the lower squeegee 41 Operation to scrape the 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 off can continue to be used as tools for sticking the ink 94 under continuous rotation. The creation does not need to use the disposable ink sticking equipment, and the roller itself can be used to achieve the purpose of repeatedly sticking the ink, so the cost of the creation can be effectively reduced.

The above description is only the preferred embodiment of this creation, and does not impose any formal restriction on this creation. Although this creation has been disclosed as above in preferred embodiments, it is not intended to limit this creation. Any technical field has Generally knowledgeable persons, without departing from the scope of this creative technical solution, can use the technical content disclosed above to make some changes or modifications as equivalent embodiments of equivalent changes, but any content that does not deviate from this creative technical solution is based on 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 the technical solution for this creation.

10: Conveying track 11: Front end 12: Rear end 20: Flattening assembly 21: Upper roller 22: Lower roller 23: Mobile power unit 24: Upper roller rolling device 25: Lower roller rolling device 30: Upper ink removal device 31: Upper Scraper 32: Upper squeegee 33: Adhesive layer 34: Upper squeegee power unit 40: Lower ink removal device 41: Lower squeegee 42: Lower squeegee 43: Adhesive layer 44: Lower squeegee power unit 91: Circuit board 92: Roller 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 three-dimensional appearance of this creation. Figure 2 is a three-dimensional view of the creative flattening device, the upper ink removal device and the lower ink removal device. Figure 3 is an exploded view of part of the components of Figure 2. Figure 4 is a cross-sectional view of this creation and a circuit board in use. 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 scroll wheel in this creation. Fig. 7 is a schematic diagram of the movement of changing the upper and lower rollers and adjusting the position of the upper scraper and the lower scraper. Figure 8 is a schematic diagram of a prior art circuit board leveling device.

10: Conveying track

11: front end

12: backend

20: Roll flat components

21: Upper scroll wheel

22: Lower scroll wheel

23: mobile power unit

24: upper roller rolling device

25: Lower roller rolling device

L: Conveying direction

Claims (11)

A circuit board flattening device includes a conveying track extending along a conveying direction, and its opposite ends in the conveying direction are a front end and a rear end respectively; a flattening assembly including a top The roller rolling device is arranged above the conveying track; an upper roller, which is connected with the upper roller rolling device and can be driven by the upper roller rolling device to rotate relative to the conveying track; the lower roller rolling device, which Set under the conveying track; The lower roller is connected with 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 roller corresponds to the position of the upper roller An upper ink removal device, which is adjacent to the upper roller and includes an upper scraper, which selectively abuts on the upper roller and can be used to scrape off the ink adhering to the upper roller; an upper receiving plate, It is arranged under 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 includes a lower scraper, which is selectively attached to the lower roller, and It can be used to scrape off the ink adhering to the lower roller; The lower receiving plate is arranged under the lower scraper and can be used to receive the ink scraped off by the lower scraper. The circuit board flattening device according to claim 1, wherein the flattening component further includes a moving power device connected to the upper roller and capable of driving the upper roller to move up and down relative to the conveying track. The circuit board flattening device according to claim 2, wherein the moving power device is an air cylinder. The circuit board rolling device according to any one of claims 1 to 3, wherein the position where the upper scraper of the upper ink removing device abuts on the upper roller is between the bottom 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 position where the lower scraper of the lower ink removing device abuts on the lower roller is between the bottom end of the lower roller and the lower Between the rearmost ends of the rollers in the conveying direction. The circuit board flattening device according to any one of claims 1 to 3, wherein the upper receiving plate is provided with an adhesive layer for receiving the 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 squeegee power device connected to the upper squeegee, and the upper squeegee power device can drive the upper squeegee The upper scraper moves relative to the upper roller, so that the upper scraper is close to or away from the upper roller. A circuit board rolling device, which includes a conveying track extending along a conveying direction, and the opposite ends of which are respectively a front end and a rear end; 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 to rotate relative to the conveying track; a lower roller rolling device, which is arranged on the conveying track Bottom; the lower roller, which is connected with 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 roller corresponds to the position of the upper roller; an ink removal device, It is adjacent to the upper roller or the lower roller, and the ink removing device includes a scraper, which selectively abuts on the upper roller or the lower roller, and can be used to scrape sticking to the upper roller or the lower roller The ink on the upper surface; A receiving tray, which is set under the squeegee and can be used to receive the ink scraped off by the squeegee. A method for rolling a circuit board includes the following steps: Preparation steps: 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; pressing step: placing a circuit board on the conveying track, and the circuit board is driven by the conveying track toward the upper roller and the Move between the lower rollers, the upper roller and the lower roller rotate in opposite directions, and then squeeze the circuit board, and the excess ink on the circuit board sticks to the upper roller and the lower roller respectively; scraping step : The upper roller and the lower roller that are soaked with ink continue to rotate and abut the upper scraper and the lower scraper respectively, the upper scraper and the lower scraper continue to abut the upper roller and the lower roller, and will be set The ink on the upper roller and the lower roller is scraped off. The circuit board rolling method 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, it further comprises an upper receiving tray and a lower receiving tray, the upper receiving tray is provided with an adhesive layer, and the lower receiving tray is provided with an adhesive In the scraping step, the adhesive layer of the upper tray receives the ink scraped off by the upper scraper on the upper roller, so that the adhesive layer of the lower tray accepts the lower roller The upper is scraped off by the lower scraper to remove the dropped ink.

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