WO2011040095A1 - Cleaning unit for screen mask - Google Patents
Cleaning unit for screen mask Download PDFInfo
- Publication number
- WO2011040095A1 WO2011040095A1 PCT/JP2010/059733 JP2010059733W WO2011040095A1 WO 2011040095 A1 WO2011040095 A1 WO 2011040095A1 JP 2010059733 W JP2010059733 W JP 2010059733W WO 2011040095 A1 WO2011040095 A1 WO 2011040095A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cleaning
- suction groove
- screen mask
- length
- divided
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/003—Cleaning arrangements or devices for screen printers or parts thereof
- B41F35/005—Cleaning arrangements or devices for screen printers or parts thereof for flat screens
Definitions
- the present invention relates to a screen mask cleaning device for cleaning a screen mask.
- Patent Document 1 Japanese Patent No. 3272612
- Patent Document 2 Japanese Patent Laid-Open No. 11-58678
- Patent Document 3 Japanese Patent Laid-Open No. 2009-12410
- a cleaning head having a suction groove that opens upward is mounted on the machine, and the cleaning head is brought into contact with the lower surface of the screen mask via a cleaning paper, and air is sucked into the cleaning head from the suction groove.
- the cleaning head is moved along the lower surface of the screen mask while sucking the remaining residue of the printing material adhering in the opening of the screen mask toward the cleaning paper, and the inside of the opening of the screen mask and its Wipe the remaining residue of the printing material adhering to the lower surface side periphery with the cleaning paper.
- the present applicant prepares a plurality of types of cleaning paper having different widths, selects the width of the cleaning paper to be used according to the width of the circuit board to be screen printed, and the suction groove of the cleaning head. It is considered that the cleaning members (elastic materials such as sponges) provided on both sides of the sheet are cut out and shortened according to the width of the cleaning paper. However, if the cleaning member is simply removed, the removed portion is opened, and the suction pressure escapes during cleaning, so that a sufficient cleaning capability cannot be obtained.
- the cleaning members elastic materials such as sponges
- a problem to be solved by the present invention is to provide a screen mask cleaning device that can reduce the waste of the cleaning paper and can secure a sufficient cleaning capability.
- the present invention has a cleaning head having a suction groove that opens upward, and the cleaning head is brought into contact with the lower surface of the screen mask via a cleaning paper so that air flows from the suction groove. Is sucked into the cleaning head, the cleaning head is moved along the lower surface of the screen mask while sucking the screen mask deposit toward the cleaning paper, and the screen mask deposit is removed.
- the length of the portion for closing the suction groove can be adjusted according to the width of the cleaning paper to be used.
- the length of the portion that closes the suction groove can be adjusted according to the width of the cleaning paper to be used, the length of the suction groove can be reduced when screen-printing a small circuit board or the like. It is possible to use a cleaning paper that is shorter and narrower, and waste of the cleaning paper can be reduced. Moreover, even if the length of the suction groove is shortened, the opening of the shortened portion can be closed, so that the suction pressure can be prevented from escaping during cleaning, and sufficient cleaning ability can be ensured.
- the member provided along the suction groove may be divided into a plurality of divided members.
- at least one divided member positioned toward the end of the suction groove is removed and replaced with another closing member, thereby adjusting the length of the portion that closes the suction groove. May be.
- the divided member is used as a suction groove forming member by changing the mounting direction of the member, the divided member can be prevented from being lost.
- a suction groove is formed between two cleaning members, and a support member that supports one of the cleaning members is divided into a plurality of divided members, and at least one positioned toward the end of the suction groove.
- the mounting direction of the two split members can be changed to a first mounting direction for forming the suction groove and a second mounting direction for closing the length of the split member in the suction groove. You may make it adjust the length of the part which closes a suction groove by changing an attachment direction into either the said 1st attachment direction or the said 2nd attachment direction. If it does in this way, the length of the part which closes a suction slot can be easily adjusted only by changing the attachment direction of a division member.
- FIG. 1 is a longitudinal sectional view of a cleaning head showing an embodiment of the present invention.
- FIG. 2 is a longitudinal sectional view of the cleaning head when the length of the suction groove is shortened.
- FIG. 3 is an external perspective view of the cleaning head.
- 4A, 4B, and 4C are perspective views of the main part of the cleaning head for explaining a method of adjusting the length of the suction groove in three stages.
- FIG. 5A is a plan view of one of the cleaning members, and FIG. 5B is a side view of the one cleaning member.
- FIGS. 1 to 5 An embodiment embodying a mode for carrying out the present invention will be described with reference to FIGS. 1 to 5.
- the cleaning head 11 has a suction groove 12 that opens upward, and is disposed below the screen mask 13.
- the cleaning head 11 is brought into contact with the lower surface of the screen mask 13 via the cleaning paper 14, and air is sucked into the cleaning head 11 from the suction groove 12.
- the cleaning head 11 is moved along the lower surface of the screen mask 13 while sucking the remaining residue of the printing material such as solder adhering to the inside of the opening 13 or the peripheral portion on the lower surface side toward the cleaning paper 14, thereby The remaining residue of the printing material adhering to 13 is wiped off with cleaning paper 14.
- the cleaning head 11 is moved in a direction perpendicular to the suction groove 12.
- An air suction chamber 15 extending along the suction groove 12 is provided inside the cleaning head 11, and a taper portion 16 that widens between the suction groove 12 and the air suction chamber 15 toward the air suction chamber 15 side. It is communicated.
- the air suction chamber 15 is connected to an air suction device (not shown), and when the screen mask 13 is cleaned, the air in the air suction chamber 15 is sucked by the air suction device to clean the air from the suction groove 12. The air is sucked into the air suction chamber 15.
- the screen mask cleaning apparatus of this embodiment uses a cleaning paper to be used in accordance with the width of a substrate to be printed such as a circuit board to be screen printed out of a plurality of types (for example, three types) of cleaning papers 14 having different widths. 14 and selecting the width of the suction groove 12 in accordance with the width of the cleaning paper 14 to be used, a member provided along the suction groove 12 is divided into a plurality of divided members A, B, The length of the suction groove 12 is adjusted by adjusting the length of the portion that closes the suction groove 12 by changing the mounting direction of at least one of the divided members A and B positioned toward the end of the suction groove 12. I try to adjust the height.
- the suction groove 12 is formed between two cleaning members 18 and 19 formed of an elastic material such as sponge, and the support member 20 that supports one cleaning member 18 is divided into a plurality of divided members A, 1 and the first mounting direction for forming the suction groove 12 as shown in FIG. 1, and the mounting direction of the at least one split member A, B located toward the end of the suction groove 12 is divided into B and C.
- the length of the divided members A and B in the suction groove 12 can be changed to the second mounting direction for closing, and divided according to the width of the cleaning paper 14 to be used.
- FIG. 4 (a) shows a state in which the length of the suction groove 12 is the longest with all the mounting directions of the divided members A and B whose mounting direction can be changed as the first mounting direction.
- the cleaning members 18 and 19 are provided between a plurality of holding pins 22 and 23 fixed upward on the support members 20 and 21 and mounting flanges 20a and 21a of the support members 20 and 21 (divided members A, B, and C). It is fitted and detachably held.
- the mounting flanges 20a and 21a of the support members 20 and 21 extend in parallel with a gap therebetween, and the gap between the two mounting flanges 20a and 21a becomes the suction groove 12.
- the upper ends of the mounting flanges 20a and 21a are slightly lower than the upper ends of the cleaning members 18 and 19, and the upper portions of the cleaning members 18 and 19 protrude upward from the upper ends of the mounting flanges 20a and 21a. This is because the upper portions of the cleaning members 18 and 19 that are in contact with the screen mask 13 during the cleaning of the screen mask 13 can be elastically deformed downward.
- the support members 20 and 21 are attached to the upper surface of the cleaning head 11 with screws 24 or the like.
- FIG. 4B shows the length of the split member A from both ends of the suction groove 12 by changing the mounting direction of the split member A located at both ends of the suction groove 12 from the first mounting direction to the second mounting direction.
- the state is shown in which the suction groove 12 is closed by a corresponding amount to shorten the length of the suction groove 12.
- the cleaning members 18 and 19 may be used after being cut by the length of the divided member A.
- the mounting flange 20a of the divided member A is fixed to the upper surface of the cleaning head 11 with screws 24, and the other surface of the divided member A is supported by the counterpart support member.
- the suction groove 12 is closed by the length of the divided member A by abutting against the mounting flange 21a of 21.
- FIG. 4C shows that the two split members A and B are attached from both ends of the suction groove 12 by changing the mounting direction from the first attachment direction to the second attachment direction.
- the state where the suction groove 12 is closed by the length of A and B and the length of the suction groove 12 is shortened is shown.
- the cleaning members 18 and 19 may be used after being cut by the length of the two divided members A and B.
- One cleaning member 18 is formed in a quadrangular prism shape, but the other cleaning member 19 has a thick central portion and a small thickness at both ends as viewed from above, as shown in FIG. It is formed in a tapered shape.
- the deformation amount of the upper part of the cleaning member 19 in contact with the screen mask 13 is easily increased toward both ends.
- the adhesion with the screen mask 13 is improved and uniform cleaning is possible.
- one cleaning member 18 may be formed in the same tapered shape as the other cleaning member 19, and conversely, both the cleaning members 18 and 19 may be formed in a square column shape.
- the width of the cleaning paper 14 to be used is set according to the width of the circuit board or the like to be screen-printed out of a plurality of types (for example, three types) of cleaning papers 14 having different widths.
- the mounting direction of the two divided members A and B positioned toward the end of the suction groove 12 is defined as the first mounting direction for forming the suction groove 12.
- the length of the portion that closes the suction groove 12 is adjusted by changing the length of the divided members A and B in the suction groove 12 to any one of the second mounting directions that close the suction groove 12.
- the length of the suction groove 12 can be shortened and the narrow cleaning paper 14 can be used when screen-printing a small-sized circuit board or the like. Paper 1 Waste can be reduced of. Moreover, even if the length of the suction groove 12 is shortened, the opening of the shortened portion can be closed, so that the suction pressure can be prevented from escaping at the time of cleaning, and sufficient cleaning ability can be secured.
- the support member 20 provided along the suction groove 12 is divided into a plurality of divided members A, B, and C, and at least one of the divided members A and B positioned toward the end of the suction groove 12. Since the length of the portion that closes the suction groove 12 is adjusted by changing the mounting direction, there is no need to provide a separate portion for closing the suction groove 12, and there is a need for a reduction in the number of parts and cost reduction. Even when the suction groove 12 is not closed by the divided members A and B, the divided members A and B are used as the suction groove forming member by changing the mounting direction of the divided members A and B. The loss of the divided members A and B can be prevented.
- a portion for closing the suction groove 12 according to the width of the cleaning paper 14 may be provided as a separate part. Specifically, a portion that closes the suction groove 12 is divided into a plurality of divided members, and at least one divided member located toward the end of the suction groove is removed and replaced with another closing member. You may make it adjust the length of the part which closes.
- the length of the suction groove 12 is adjusted in three stages, but it may be configured so that it can be adjusted in two stages or four or more stages.
- the present invention can be implemented with various changes within a range not departing from the gist, such as changing the holding structure of the cleaning members 18 and 19 and changing the shape and mounting structure of the divided members A and B. .
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Screen Printers (AREA)
Abstract
The disclosed cleaning unit for a screening mask enables selection of the width of the cleaning paper to be used from among several types of cleaning paper of different widths, according to the width of the circuit substrate or the like employed for screen printing. A supporting member (20) which supports one cleaning member (18) is divided into a plurality of divided member parts (A, B, C). The setting direction of at least one of the divided member parts (A only, or A and B) placed at or near the end side of the sucking groove (12) is changed from a first setting direction forming the sucking groove (12) to a second setting direction for closing the length-wise portion of the sucking groove (12) corresponding to the divided member part (A only, or A and B) so as to adjust the length of the closed portion of the sucking groove (12) and adjust the length of the sucking groove (12).
Description
本発明は、スクリーンマスクをクリーニングするスクリーンマスク用クリーニング装置に関する発明である。
The present invention relates to a screen mask cleaning device for cleaning a screen mask.
回路基板等にスクリーン印刷する際に用いるスクリーンマスクは、印刷回数が増えるに従って、スクリーンマスクの開口部内に半田等の印刷材料の残り滓が堆積して開口部が目詰りしたり、開口部の下面側周辺部分が印刷材料の残り滓で汚れたりして、印刷品質が低下するため、スクリーンマスクの開口部内やその下面側周辺部分に付着した印刷材料の残り滓を定期的に取り除く必要がある。
Screen masks used for screen printing on circuit boards, etc., as the number of times of printing increases, the residue of printing material such as solder accumulates in the openings of the screen mask and the openings are clogged, or the bottom surface of the openings Since the side peripheral portion is soiled with the remaining residue of the printing material and the print quality is deteriorated, it is necessary to periodically remove the remaining residue of the printing material adhering to the inside of the opening of the screen mask and the lower surface side peripheral portion.
そこで、例えば、特許文献１（特許第３２７２６１２号公報）、特許文献２（特開平１１－５８６７８号公報）、特許文献３（特開２００９－１２４１０号公報）に記載されているように、スクリーン印刷機に、上向きに開口する吸入溝を有するクリーニングヘッドを搭載し、スクリーンマスクの下面にクリーニングぺーパを介して前記クリーニングヘッドを当接させて前記吸入溝から空気を該クリーニングヘッド内に吸入することで、前記スクリーンマスクの開口部内に付着した印刷材料の残り滓を前記クリーニングぺーパ側に吸引しながら前記クリーニングヘッドを前記スクリーンマスクの下面に沿って移動させて、前記スクリーンマスクの開口部内やその下面側周辺部分に付着した印刷材料の残り滓を前記クリーニングぺーパで拭き取るようにしたものがある。
Therefore, for example, as described in Patent Document 1 (Japanese Patent No. 3272612), Patent Document 2 (Japanese Patent Laid-Open No. 11-58678), and Patent Document 3 (Japanese Patent Laid-Open No. 2009-12410), screen printing is performed. A cleaning head having a suction groove that opens upward is mounted on the machine, and the cleaning head is brought into contact with the lower surface of the screen mask via a cleaning paper, and air is sucked into the cleaning head from the suction groove. The cleaning head is moved along the lower surface of the screen mask while sucking the remaining residue of the printing material adhering in the opening of the screen mask toward the cleaning paper, and the inside of the opening of the screen mask and its Wipe the remaining residue of the printing material adhering to the lower surface side periphery with the cleaning paper. There is a thing that was so that.
ところで、同一サイズのスクリーンマスクで、複数種のサイズの回路基板等をスクリーン印刷可能であり、小さいサイズの回路基板等をスクリーン印刷する場合は、スクリーンマスクに印刷材料の残り滓が付着する部分も小さくなる。
By the way, it is possible to screen print a plurality of types of circuit boards with the same size screen mask, and when screen printing a small size circuit board, etc., there are also portions where the residue of printing material adheres to the screen mask. Get smaller.
しかし、従来は、クリーニングヘッドの吸入溝の幅に合わせた幅のクリーニングぺーパが１種類あるだけであるため、小さいサイズの回路基板等をスクリーン印刷する場合は、印刷材料の残り滓が付着していない部分（クリーニングする必要がない部分）までも、クリーニングすることになってしまい、無駄が生じる。
Conventionally, however, there is only one type of cleaning paper with a width that matches the width of the suction groove of the cleaning head. Therefore, when screen-printing a small-sized circuit board or the like, the remaining residue of the printing material adheres. Even parts that do not need to be cleaned (parts that do not need to be cleaned) are cleaned, resulting in waste.
そこで、本出願人は、幅の異なる複数種のクリーニングぺーパを準備して、スクリーン印刷する回路基板等の幅に応じて、使用するクリーニングぺーパの幅を選択すると共に、クリーニングヘッドの吸入溝の両側に設けられたクリーニング部材（スポンジ等の弾性材料）をクリーニングぺーパの幅に応じて切除して短くすることを考えている。しかし、クリーニング部材を切除しただけでは、その切除された部分が開口されてクリーニング時に吸入圧が逃げてしまい、十分なクリーニング能力が得られなくなる。
Therefore, the present applicant prepares a plurality of types of cleaning paper having different widths, selects the width of the cleaning paper to be used according to the width of the circuit board to be screen printed, and the suction groove of the cleaning head. It is considered that the cleaning members (elastic materials such as sponges) provided on both sides of the sheet are cut out and shortened according to the width of the cleaning paper. However, if the cleaning member is simply removed, the removed portion is opened, and the suction pressure escapes during cleaning, so that a sufficient cleaning capability cannot be obtained.
そこで、本発明が解決しようとする課題は、クリーニングぺーパの無駄を低減できると共に、十分なクリーニング能力を確保できるスクリーンマスク用クリーニング装置を提供することにある。
Therefore, a problem to be solved by the present invention is to provide a screen mask cleaning device that can reduce the waste of the cleaning paper and can secure a sufficient cleaning capability.
上記課題を解決するために、本発明は、上向きに開口する吸入溝を有するクリーニングヘッドを有し、スクリーンマスクの下面にクリーニングぺーパを介して前記クリーニングヘッドを当接させて前記吸入溝から空気を該クリーニングヘッド内に吸入することで、前記スクリーンマスクの付着物を前記クリーニングぺーパ側に吸引しながら前記クリーニングヘッドを前記スクリーンマスクの下面に沿って移動させて、前記スクリーンマスクの付着物を前記クリーニングぺーパで拭き取るスクリーンマスク用クリーニング装置において、使用するクリーニングぺーパの幅に応じて吸入溝を閉鎖する部分の長さを調整可能に構成したものである。
In order to solve the above-described problems, the present invention has a cleaning head having a suction groove that opens upward, and the cleaning head is brought into contact with the lower surface of the screen mask via a cleaning paper so that air flows from the suction groove. Is sucked into the cleaning head, the cleaning head is moved along the lower surface of the screen mask while sucking the screen mask deposit toward the cleaning paper, and the screen mask deposit is removed. In the screen mask cleaning device wiped with the cleaning paper, the length of the portion for closing the suction groove can be adjusted according to the width of the cleaning paper to be used.
このように、使用するクリーニングぺーパの幅に応じて吸入溝を閉鎖する部分の長さを調整可能に構成すれば、小さいサイズの回路基板等をスクリーン印刷する場合は、吸入溝の長さを短くして幅の狭いクリーニングぺーパを使用することが可能となり、クリーニングぺーパの無駄を低減できる。しかも、吸入溝の長さを短くしても、その短くした部分の開口を閉鎖できるため、クリーニング時に吸入圧が逃げることを防止できて、十分なクリーニング能力を確保できる。
In this way, if the length of the portion that closes the suction groove can be adjusted according to the width of the cleaning paper to be used, the length of the suction groove can be reduced when screen-printing a small circuit board or the like. It is possible to use a cleaning paper that is shorter and narrower, and waste of the cleaning paper can be reduced. Moreover, even if the length of the suction groove is shortened, the opening of the shortened portion can be closed, so that the suction pressure can be prevented from escaping during cleaning, and sufficient cleaning ability can be ensured.
本発明は、吸入溝に沿って設ける部材を複数の分割部材に分割しても良い。この場合、複数の分割部材のうち、吸入溝の端の方に位置する少なくとも１つの分割部材を取り外して別の閉鎖部材に付け替えることで、吸入溝を閉鎖する部分の長さを調整するようにしても良い。
In the present invention, the member provided along the suction groove may be divided into a plurality of divided members. In this case, among the plurality of divided members, at least one divided member positioned toward the end of the suction groove is removed and replaced with another closing member, thereby adjusting the length of the portion that closes the suction groove. May be.
或は、複数の分割部材のうち、吸入溝の端の方に位置する少なくとも１つの分割部材の取付方向を変更することで吸入溝を閉鎖する部分の長さを調整するようにしても良い。このようにすれば、吸入溝を閉鎖する部分を別部品として設ける必要がなく、部品点数削減・低コスト化の要求を満たすことができると共に、分割部材で吸入溝を閉鎖しない場合でも、当該分割部材の取付方向を変更して当該分割部材を吸入溝形成部材として使用するため、当該分割部材の紛失を防止できる。
Or you may make it adjust the length of the part which closes a suction groove by changing the attachment direction of the at least 1 division member located toward the edge of a suction groove among several split members. In this way, it is not necessary to provide a part for closing the suction groove as a separate part, and it is possible to meet the requirements for reducing the number of parts and reducing the cost. Since the divided member is used as a suction groove forming member by changing the mounting direction of the member, the divided member can be prevented from being lost.
具体的には、２本のクリーニング部材の間に吸入溝を形成し、一方のクリーニング部材を支持する支持部材を、複数の分割部材に分割すると共に、吸入溝の端の方に位置する少なくとも１つの分割部材の取付方向を、吸入溝を形成する第１の取付方向と、吸入溝のうちの分割部材の長さ分を閉鎖する第２の取付方向とに変更可能に構成し、分割部材の取付方向を前記第１の取付方向と前記第２の取付方向のいずれかに変更することで、吸入溝を閉鎖する部分の長さを調整するようにしても良い。このようにすれば、分割部材の取付方向を変更するだけで、簡単に吸入溝を閉鎖する部分の長さを調整することができる。
Specifically, a suction groove is formed between two cleaning members, and a support member that supports one of the cleaning members is divided into a plurality of divided members, and at least one positioned toward the end of the suction groove. The mounting direction of the two split members can be changed to a first mounting direction for forming the suction groove and a second mounting direction for closing the length of the split member in the suction groove. You may make it adjust the length of the part which closes a suction groove by changing an attachment direction into either the said 1st attachment direction or the said 2nd attachment direction. If it does in this way, the length of the part which closes a suction slot can be easily adjusted only by changing the attachment direction of a division member.
以下、本発明を実施するための形態を具体化した一実施例を図１乃至図５を用いて説明する。
Hereinafter, an embodiment embodying a mode for carrying out the present invention will be described with reference to FIGS. 1 to 5.
まず、スクリーンマスク用クリーニング装置の構成を説明する。
クリーニングヘッド１１は、上向きに開口する吸入溝１２を有し、スクリーンマスク１３の下方に配置されている。スクリーンマスク１３をクリーニングする際には、スクリーンマスク１３の下面にクリーニングぺーパ１４を介してクリーニングヘッド１１を当接させて吸入溝１２から空気を該クリーニングヘッド１１内に吸入することで、スクリーンマスク１３の開口部内やその下面側周辺部分に付着した半田等の印刷材料の残り滓をクリーニングぺーパ１４側に吸引しながら、クリーニングヘッド１１をスクリーンマスク１３の下面に沿って移動させて、スクリーンマスク１３に付着した印刷材料の残り滓をクリーニングぺーパ１４で拭き取る。この際、クリーニングヘッド１１は、吸入溝１２に対して直角方向に移動させる。 First, the configuration of the screen mask cleaning device will be described.
Thecleaning head 11 has a suction groove 12 that opens upward, and is disposed below the screen mask 13. When cleaning the screen mask 13, the cleaning head 11 is brought into contact with the lower surface of the screen mask 13 via the cleaning paper 14, and air is sucked into the cleaning head 11 from the suction groove 12. The cleaning head 11 is moved along the lower surface of the screen mask 13 while sucking the remaining residue of the printing material such as solder adhering to the inside of the opening 13 or the peripheral portion on the lower surface side toward the cleaning paper 14, thereby The remaining residue of the printing material adhering to 13 is wiped off with cleaning paper 14. At this time, the cleaning head 11 is moved in a direction perpendicular to the suction groove 12.
クリーニングヘッド１１は、上向きに開口する吸入溝１２を有し、スクリーンマスク１３の下方に配置されている。スクリーンマスク１３をクリーニングする際には、スクリーンマスク１３の下面にクリーニングぺーパ１４を介してクリーニングヘッド１１を当接させて吸入溝１２から空気を該クリーニングヘッド１１内に吸入することで、スクリーンマスク１３の開口部内やその下面側周辺部分に付着した半田等の印刷材料の残り滓をクリーニングぺーパ１４側に吸引しながら、クリーニングヘッド１１をスクリーンマスク１３の下面に沿って移動させて、スクリーンマスク１３に付着した印刷材料の残り滓をクリーニングぺーパ１４で拭き取る。この際、クリーニングヘッド１１は、吸入溝１２に対して直角方向に移動させる。 First, the configuration of the screen mask cleaning device will be described.
The
クリーニングヘッド１１の内部には、吸入溝１２に沿って延びる空気吸引チャンバ１５が設けられ、吸入溝１２と空気吸引チャンバ１５との間が空気吸引チャンバ１５側に向けて拡開するテーパ部１６によって連通されている。空気吸引チャンバ１５は、空気吸入装置（図示せず）に接続され、スクリーンマスク１３のクリーニング時に空気吸入装置によって空気吸引チャンバ１５内の空気を吸入することで、吸入溝１２から空気をクリーニングヘッド１１の空気吸引チャンバ１５内に吸入する。
An air suction chamber 15 extending along the suction groove 12 is provided inside the cleaning head 11, and a taper portion 16 that widens between the suction groove 12 and the air suction chamber 15 toward the air suction chamber 15 side. It is communicated. The air suction chamber 15 is connected to an air suction device (not shown), and when the screen mask 13 is cleaned, the air in the air suction chamber 15 is sucked by the air suction device to clean the air from the suction groove 12. The air is sucked into the air suction chamber 15.
本実施例のスクリーンマスク用クリーニング装置は、幅の異なる複数種（例えば３種）のクリーニングぺーパ１４の中から、スクリーン印刷する回路基板等の被印刷物の幅に応じて、使用するクリーニングぺーパ１４の幅を選択すると共に、使用するクリーニングぺーパ１４の幅に応じて吸入溝１２の長さを調整可能とするために、吸入溝１２に沿って設ける部材を複数の分割部材Ａ，Ｂ，Ｃに分割し、吸入溝１２の端の方に位置する少なくとも１つの分割部材Ａ，Ｂの取付方向を変更することで吸入溝１２を閉鎖する部分の長さを調整して吸入溝１２の長さを調整するようにしている。
The screen mask cleaning apparatus of this embodiment uses a cleaning paper to be used in accordance with the width of a substrate to be printed such as a circuit board to be screen printed out of a plurality of types (for example, three types) of cleaning papers 14 having different widths. 14 and selecting the width of the suction groove 12 in accordance with the width of the cleaning paper 14 to be used, a member provided along the suction groove 12 is divided into a plurality of divided members A, B, The length of the suction groove 12 is adjusted by adjusting the length of the portion that closes the suction groove 12 by changing the mounting direction of at least one of the divided members A and B positioned toward the end of the suction groove 12. I try to adjust the height.
具体的には、スポンジ等の弾性材料により形成した２本のクリーニング部材１８，１９の間に吸入溝１２を形成し、一方のクリーニング部材１８を支持する支持部材２０を、複数の分割部材Ａ，Ｂ，Ｃに分割すると共に、吸入溝１２の端の方に位置する少なくとも１つの分割部材Ａ，Ｂの取付方向を、図１に示すように吸入溝１２を形成する第１の取付方向と、図２に示すように吸入溝１２のうちの分割部材Ａ，Ｂの長さ分を閉鎖する第２の取付方向とに変更可能に構成し、使用するクリーニングぺーパ１４の幅に応じて、分割部材（Ａのみ又はＡとＢの両方）の取付方向を第１の取付方向から第２の取付方向に変更することで、吸入溝１２を閉鎖する部分の長さを調整して吸入溝１２の長さを調整するようにしている。
Specifically, the suction groove 12 is formed between two cleaning members 18 and 19 formed of an elastic material such as sponge, and the support member 20 that supports one cleaning member 18 is divided into a plurality of divided members A, 1 and the first mounting direction for forming the suction groove 12 as shown in FIG. 1, and the mounting direction of the at least one split member A, B located toward the end of the suction groove 12 is divided into B and C. As shown in FIG. 2, the length of the divided members A and B in the suction groove 12 can be changed to the second mounting direction for closing, and divided according to the width of the cleaning paper 14 to be used. By changing the mounting direction of the member (only A or both A and B) from the first mounting direction to the second mounting direction, the length of the portion that closes the suction groove 12 is adjusted, and the suction groove 12 The length is adjusted.
図４（ａ）は、取付方向を変更可能な分割部材Ａ，Ｂの取付方向を全て第１の取付方向にして、吸入溝１２の長さを最も長くした状態を示している。クリーニング部材１８，１９は、支持部材２０，２１に上向きに固定した複数本の保持ピン２２，２３と支持部材２０，２１（分割部材Ａ，Ｂ，Ｃ）の装着フランジ２０ａ，２１ａとの間に嵌め込まれて着脱可能に保持されている。支持部材２０，２１の装着フランジ２０ａ，２１ａは隙間を挟んで平行に延び、２つの装着フランジ２０ａ，２１ａ間の隙間が吸入溝１２となる。
FIG. 4 (a) shows a state in which the length of the suction groove 12 is the longest with all the mounting directions of the divided members A and B whose mounting direction can be changed as the first mounting direction. The cleaning members 18 and 19 are provided between a plurality of holding pins 22 and 23 fixed upward on the support members 20 and 21 and mounting flanges 20a and 21a of the support members 20 and 21 (divided members A, B, and C). It is fitted and detachably held. The mounting flanges 20a and 21a of the support members 20 and 21 extend in parallel with a gap therebetween, and the gap between the two mounting flanges 20a and 21a becomes the suction groove 12.
装着フランジ２０ａ，２１ａの上端は、クリーニング部材１８，１９の上端よりも少し低くなり、装着フランジ２０ａ，２１ａの上端からクリーニング部材１８，１９の上部が上方に突出している。これは、スクリーンマスク１３のクリーニング時にスクリーンマスク１３に当接するクリーニング部材１８，１９の上部が下方に弾性変形できるようにするためである。支持部材２０，２１は、クリーニングヘッド１１の上面にねじ２４等で取り付けられている。
The upper ends of the mounting flanges 20a and 21a are slightly lower than the upper ends of the cleaning members 18 and 19, and the upper portions of the cleaning members 18 and 19 protrude upward from the upper ends of the mounting flanges 20a and 21a. This is because the upper portions of the cleaning members 18 and 19 that are in contact with the screen mask 13 during the cleaning of the screen mask 13 can be elastically deformed downward. The support members 20 and 21 are attached to the upper surface of the cleaning head 11 with screws 24 or the like.
図４（ｂ）は、吸入溝１２の両端に位置する分割部材Ａの取付方向を第１の取付方向から第２の取付方向に変更して、吸入溝１２の両端から分割部材Ａの長さ分だけ吸入溝１２を閉鎖して吸入溝１２の長さを短くした状態を示している。この場合、クリーニング部材１８，１９は、消耗品であることを考慮して、分割部材Ａの長さ分だけ切除して使用すれば良い。図２に示すように、第２の取付方向では、分割部材Ａの装着フランジ２０ａをクリーニングヘッド１１の上面に宛がってねじ２４で固定し、分割部材Ａの他面を相手側の支持部材２１の装着フランジ２１ａに突き合わせることで、分割部材Ａの長さ分だけ吸入溝１２を閉鎖する。
FIG. 4B shows the length of the split member A from both ends of the suction groove 12 by changing the mounting direction of the split member A located at both ends of the suction groove 12 from the first mounting direction to the second mounting direction. The state is shown in which the suction groove 12 is closed by a corresponding amount to shorten the length of the suction groove 12. In this case, considering that the cleaning members 18 and 19 are consumables, the cleaning members 18 and 19 may be used after being cut by the length of the divided member A. As shown in FIG. 2, in the second mounting direction, the mounting flange 20a of the divided member A is fixed to the upper surface of the cleaning head 11 with screws 24, and the other surface of the divided member A is supported by the counterpart support member. The suction groove 12 is closed by the length of the divided member A by abutting against the mounting flange 21a of 21.
図４（ｃ）は、吸入溝１２の両端から２つの分割部材Ａ，Ｂの取付方向を第１の取付方向から第２の取付方向に変更して、吸入溝１２の両端から２つの分割部材Ａ，Ｂの長さ分だけ吸入溝１２を閉鎖して吸入溝１２の長さを最も短くした状態を示している。この場合、クリーニング部材１８，１９は、２つの分割部材Ａ，Ｂの長さ分だけ切除して使用すれば良い。
FIG. 4C shows that the two split members A and B are attached from both ends of the suction groove 12 by changing the mounting direction from the first attachment direction to the second attachment direction. The state where the suction groove 12 is closed by the length of A and B and the length of the suction groove 12 is shortened is shown. In this case, the cleaning members 18 and 19 may be used after being cut by the length of the two divided members A and B.
一方のクリーニング部材１８は、四角柱状に形成されているが、他方のクリーニング部材１９は、図５（ａ）に示すように、上方から見て中央部の厚みが大きく、両端の厚みが小さくなるテーパ形状に形成されている。これにより、スクリーンマスク１３のクリーニング時に、図５（ｂ）に示すように、スクリーンマスク１３に当接するクリーニング部材１９の上部の変形量が両端側ほど容易に大きくなり、クリーニング部材１９の上端面とスクリーンマスク１３との密着性を向上させて、均一なクリーニングを可能とする。
One cleaning member 18 is formed in a quadrangular prism shape, but the other cleaning member 19 has a thick central portion and a small thickness at both ends as viewed from above, as shown in FIG. It is formed in a tapered shape. As a result, when the screen mask 13 is cleaned, as shown in FIG. 5B, the deformation amount of the upper part of the cleaning member 19 in contact with the screen mask 13 is easily increased toward both ends. The adhesion with the screen mask 13 is improved and uniform cleaning is possible.
尚、一方のクリーニング部材１８も、他方のクリーニング部材１９と同様のテーパ形状に形成しても良いし、その反対に、両方のクリーニング部材１８，１９を四角柱状に形成しても良い。
Note that one cleaning member 18 may be formed in the same tapered shape as the other cleaning member 19, and conversely, both the cleaning members 18 and 19 may be formed in a square column shape.
以上説明した本実施例によれば、幅の異なる複数種（例えば３種）のクリーニングぺーパ１４の中から、スクリーン印刷する回路基板等の幅に応じて、使用するクリーニングぺーパ１４の幅を選択すると共に、使用するクリーニングぺーパ１４の幅に応じて、吸入溝１２の端の方に位置する２つの分割部材Ａ，Ｂの取付方向を、吸入溝１２を形成する第１の取付方向と、吸入溝１２のうちの分割部材Ａ，Ｂの長さ分を閉鎖する第２の取付方向のいずれかに変更することで、吸入溝１２を閉鎖する部分の長さを調整して吸入溝１２の長さを調整することができるため、小さいサイズの回路基板等をスクリーン印刷する場合は、吸入溝１２の長さを短くして幅の狭いクリーニングぺーパ１４を使用することが可能となり、クリーニングぺーパ１４の無駄を低減できる。しかも、吸入溝１２の長さを短くしても、その短くした部分の開口を閉鎖できるため、クリーニング時に吸入圧が逃げることを防止できて、十分なクリーニング能力を確保できる。
According to the present embodiment described above, the width of the cleaning paper 14 to be used is set according to the width of the circuit board or the like to be screen-printed out of a plurality of types (for example, three types) of cleaning papers 14 having different widths. Depending on the width of the cleaning paper 14 to be used, the mounting direction of the two divided members A and B positioned toward the end of the suction groove 12 is defined as the first mounting direction for forming the suction groove 12. The length of the portion that closes the suction groove 12 is adjusted by changing the length of the divided members A and B in the suction groove 12 to any one of the second mounting directions that close the suction groove 12. The length of the suction groove 12 can be shortened and the narrow cleaning paper 14 can be used when screen-printing a small-sized circuit board or the like. Paper 1 Waste can be reduced of. Moreover, even if the length of the suction groove 12 is shortened, the opening of the shortened portion can be closed, so that the suction pressure can be prevented from escaping at the time of cleaning, and sufficient cleaning ability can be secured.
しかも、本実施例では、吸入溝１２に沿って設ける支持部材２０を複数の分割部材Ａ，Ｂ，Ｃに分割し、吸入溝１２の端の方に位置する少なくとも１つの分割部材Ａ，Ｂの取付方向を変更することで吸入溝１２を閉鎖する部分の長さを調整するようにしたので、吸入溝１２を閉鎖する部分を別部品として設ける必要がなく、部品点数削減・低コスト化の要求を満たすことができると共に、分割部材Ａ，Ｂで吸入溝１２を閉鎖しない場合でも、当該分割部材Ａ，Ｂの取付方向を変更して当該分割部材Ａ，Ｂを吸入溝形成部材として使用するため、当該分割部材Ａ，Ｂの紛失を防止できる。
In addition, in the present embodiment, the support member 20 provided along the suction groove 12 is divided into a plurality of divided members A, B, and C, and at least one of the divided members A and B positioned toward the end of the suction groove 12. Since the length of the portion that closes the suction groove 12 is adjusted by changing the mounting direction, there is no need to provide a separate portion for closing the suction groove 12, and there is a need for a reduction in the number of parts and cost reduction. Even when the suction groove 12 is not closed by the divided members A and B, the divided members A and B are used as the suction groove forming member by changing the mounting direction of the divided members A and B. The loss of the divided members A and B can be prevented.
但し、本発明は、クリーニングぺーパ１４の幅に応じて吸入溝１２を閉鎖する部分を別部品として設けるようにしても良い。具体的には、吸入溝１２を閉鎖する部分を複数の分割部材に分割して、吸入溝の端の方に位置する少なくとも１つの分割部材を取り外して別の閉鎖部材に付け替えることで、吸入溝を閉鎖する部分の長さを調整するようにしても良い。
However, in the present invention, a portion for closing the suction groove 12 according to the width of the cleaning paper 14 may be provided as a separate part. Specifically, a portion that closes the suction groove 12 is divided into a plurality of divided members, and at least one divided member located toward the end of the suction groove is removed and replaced with another closing member. You may make it adjust the length of the part which closes.
また、本発明は、吸入溝１２の長さを３段階に調整するようにしたが、２段階又は４段階以上に調整できるように構成しても良い。
In the present invention, the length of the suction groove 12 is adjusted in three stages, but it may be configured so that it can be adjusted in two stages or four or more stages.
その他、本発明は、クリーニング部材１８，１９の保持構造を変更したり、分割部材Ａ，Ｂの形状や取付構造を変更しても良い等、要旨を逸脱しない範囲内で種々変更して実施できる。
In addition, the present invention can be implemented with various changes within a range not departing from the gist, such as changing the holding structure of the cleaning members 18 and 19 and changing the shape and mounting structure of the divided members A and B. .
１１…クリーニングヘッド、１２…吸入溝、１３…スクリーンマスク、１４…クリーニングぺーパ、１５…空気吸引チャンバ、１８，１９…クリーニング部材、２０，２１…支持部材、２０ａ，２１ａ…装着フランジ、２２，２３…保持ピン、２４…ねじ
DESCRIPTION OF SYMBOLS 11 ... Cleaning head, 12 ... Inhalation groove, 13 ... Screen mask, 14 ... Cleaning paper, 15 ... Air suction chamber, 18, 19 ... Cleaning member, 20, 21 ... Support member, 20a, 21a ... Mounting flange, 22, 23 ... Holding pin, 24 ... Screw
Claims (4)
- 上向きに開口する吸入溝を有するクリーニングヘッドを有し、スクリーンマスクの下面にクリーニングぺーパを介して前記クリーニングヘッドを当接させて前記吸入溝から空気を該クリーニングヘッド内に吸入することで、前記スクリーンマスクの付着物を前記クリーニングぺーパ側に吸引しながら前記クリーニングヘッドを前記スクリーンマスクの下面に沿って移動させて、前記スクリーンマスクの付着物を前記クリーニングぺーパで拭き取るスクリーンマスク用クリーニング装置において、
使用するクリーニングぺーパの幅に応じて前記吸入溝を閉鎖する部分の長さを調整可能に構成したことを特徴とするスクリーンマスク用クリーニング装置。 A cleaning head having a suction groove that opens upward, the cleaning head is brought into contact with the lower surface of the screen mask via a cleaning paper, and air is sucked into the cleaning head from the suction groove; In the cleaning device for a screen mask, the cleaning head is moved along the lower surface of the screen mask while sucking the deposit on the screen mask toward the cleaning paper, and the deposit on the screen mask is wiped off with the cleaning paper. ,
A cleaning device for a screen mask, characterized in that the length of the portion for closing the suction groove can be adjusted according to the width of the cleaning paper to be used. - 前記吸入溝に沿って設ける部材を複数の分割部材に分割したことを特徴とする請求項１に記載のスクリーンマスク用クリーニング装置。 The screen mask cleaning device according to claim 1, wherein a member provided along the suction groove is divided into a plurality of divided members.
- 前記複数の分割部材のうち、前記吸入溝の端の方に位置する少なくとも１つの分割部材の取付方向を変更することで前記吸入溝を閉鎖する部分の長さを調整することを特徴とする請求項２に記載のスクリーンマスク用クリーニング装置。 The length of the part which closes the said suction groove is adjusted by changing the attachment direction of the at least 1 division member located toward the edge of the said suction groove among these division members. Item 3. The screen mask cleaning device according to Item 2.
- 前記クリーニングヘッドは、２本のクリーニング部材の間に前記吸入溝を形成し、一方のクリーニング部材を支持する支持部材を、複数の分割部材に分割すると共に、前記吸入溝の端の方に位置する少なくとも１つの分割部材の取付方向を、前記吸入溝を形成する第１の取付方向と、前記吸入溝のうちの前記分割部材の長さ分を閉鎖する第２の取付方向とに変更可能に構成し、前記分割部材の取付方向を前記第１の取付方向と前記第２の取付方向のいずれかに変更することで、前記吸入溝を閉鎖する部分の長さを調整することを特徴とする請求項３に記載のスクリーンマスク用クリーニング装置。 The cleaning head forms the suction groove between two cleaning members, and divides a support member that supports one cleaning member into a plurality of divided members and is positioned toward the end of the suction groove. The mounting direction of at least one split member can be changed to a first mounting direction that forms the suction groove and a second mounting direction that closes the length of the split member in the suction groove. And the length of the part which closes the said suction groove is adjusted by changing the attachment direction of the said division | segmentation member into either the said 1st attachment direction or the said 2nd attachment direction. Item 4. The screen mask cleaning device according to Item 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201080043960.6A CN102574394B (en) | 2009-09-30 | 2010-06-09 | Cleaning unit for screen mask |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009228564A JP5594864B2 (en) | 2009-09-30 | 2009-09-30 | Screen mask cleaning device |
| JP2009-228564 | 2009-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011040095A1 true WO2011040095A1 (en) | 2011-04-07 |
Family
ID=43825930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2010/059733 WO2011040095A1 (en) | 2009-09-30 | 2010-06-09 | Cleaning unit for screen mask |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5594864B2 (en) |
| CN (1) | CN102574394B (en) |
| WO (1) | WO2011040095A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6129194B2 (en) * | 2012-09-28 | 2017-05-17 | 富士機械製造株式会社 | Vacuum cleaning head |
| JP6258658B2 (en) * | 2013-10-22 | 2018-01-10 | 富士機械製造株式会社 | Screen printing device |
| CN105946341A (en) * | 2016-06-23 | 2016-09-21 | 粟石波 | Automatic screen bottom scraping device |
| JP7012216B2 (en) * | 2018-03-12 | 2022-01-28 | パナソニックＩｐマネジメント株式会社 | Screen printing device |
| JP7113306B2 (en) * | 2018-03-12 | 2022-08-05 | パナソニックＩｐマネジメント株式会社 | Screen printer and mask cleaner |
| CN210148924U (en) * | 2019-01-04 | 2020-03-17 | 伊利诺斯工具制品有限公司 | Vacuum wiper and stencil printer having the same |
| DE112019007039T5 (en) * | 2019-03-20 | 2022-01-05 | Panasonic intellectual property Management co., Ltd | Screen printing device and screen printing process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06155723A (en) * | 1992-11-18 | 1994-06-03 | Hitachi Techno Eng Co Ltd | Screen printer |
| JP2001138493A (en) * | 1999-11-12 | 2001-05-22 | Juki Corp | Cleaning device for creamy solder printing machine |
| JP2002192703A (en) * | 2000-12-26 | 2002-07-10 | Yamaha Motor Co Ltd | Device and method for cleaning screen printing machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314814A (en) * | 1996-05-28 | 1997-12-09 | Matsushita Electric Ind Co Ltd | Cleaning device and cleaning method |
| JP4723116B2 (en) * | 2001-05-24 | 2011-07-13 | ベルク工業有限会社 | Electrostatic printing apparatus and electrostatic printing method |
| JP2004082457A (en) * | 2002-08-26 | 2004-03-18 | Minami Kk | Cleaning device of screen mask |
| US6955121B2 (en) * | 2004-02-20 | 2005-10-18 | Speedline Technologies, Inc. | Methods and apparatus for cleaning a stencil |
-
2009
- 2009-09-30 JP JP2009228564A patent/JP5594864B2/en active Active
-
2010
- 2010-06-09 WO PCT/JP2010/059733 patent/WO2011040095A1/en active Application Filing
- 2010-06-09 CN CN201080043960.6A patent/CN102574394B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06155723A (en) * | 1992-11-18 | 1994-06-03 | Hitachi Techno Eng Co Ltd | Screen printer |
| JP2001138493A (en) * | 1999-11-12 | 2001-05-22 | Juki Corp | Cleaning device for creamy solder printing machine |
| JP2002192703A (en) * | 2000-12-26 | 2002-07-10 | Yamaha Motor Co Ltd | Device and method for cleaning screen printing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102574394A (en) | 2012-07-11 |
| CN102574394B (en) | 2014-08-13 |
| JP2011073352A (en) | 2011-04-14 |
| JP5594864B2 (en) | 2014-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011040095A1 (en) | Cleaning unit for screen mask | |
| KR101102777B1 (en) | Printing screens, frames therefor and printing screen units | |
| JP6385652B2 (en) | Screen mask | |
| JP2019018319A (en) | Cutting mechanism and printer | |
| JP2019018516A (en) | Cutting mechanism and printer | |
| JP5981276B2 (en) | Screen printing machine and screen printing method | |
| CN110785272B (en) | Half cutter, method of manufacturing half cutter, and tape printing apparatus | |
| KR20150144495A (en) | A cleaning apparatus and method for metalmask | |
| JP2021100812A (en) | Plate-like material printing system | |
| JP6245169B2 (en) | Inkjet recording device | |
| JP5706997B1 (en) | Ink jet print head ejection failure prevention apparatus and method | |
| JP6533948B2 (en) | Mask cleaning apparatus and mask cleaning method | |
| JP2018144348A (en) | Ink scattering prevention cover and gravure printer | |
| JP6039466B2 (en) | Squeegee and screen printing device | |
| JP4324800B2 (en) | Substrate support | |
| JPH1178056A (en) | Print head of ink-jet printer | |
| JP2003112405A (en) | Back wiping squeegee of screen printing machine | |
| KR101125115B1 (en) | Work-plate and circuit-pattern print device therewith | |
| JP3467506B2 (en) | Printing screen cleaning device and cleaning method | |
| JP2005053199A (en) | Eco-squeegee | |
| JPH0596797A (en) | Paper guide mechanism in serial printer | |
| JP2002036494A (en) | Screen plate cleaning unit | |
| JP2016010860A (en) | Screen printer | |
| JP4375262B2 (en) | Screen printing device | |
| JP2020157500A (en) | Printer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 201080043960.6 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10820215 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 10820215 Country of ref document: EP Kind code of ref document: A1 |