A screen printing machine including: a screen mask detachably mounted to a mask mounting area set in advance; a squeegee, arranged above the screen mask mounted to the mask mounting area, that reciprocates relative to the screen mask in a Y-axis direction (a squeegee-movement direction); and scrapin
A screen printing machine including: a screen mask detachably mounted to a mask mounting area set in advance; a squeegee, arranged above the screen mask mounted to the mask mounting area, that reciprocates relative to the screen mask in a Y-axis direction (a squeegee-movement direction); and scraping member (144) that comes into sliding contact with the squeegee upon suspension of printing and scraping off applying material adhered to the squeegee.
대표청구항▼
1. A screen printing machine that prints applying material on a substrate, comprising: a screen mask detachably mounted to a mask mounting area set in advance;a squeegee arranged above the screen mask mounted to the mask mounting area, the squeegee being configured to reciprocate relative to the scr
1. A screen printing machine that prints applying material on a substrate, comprising: a screen mask detachably mounted to a mask mounting area set in advance;a squeegee arranged above the screen mask mounted to the mask mounting area, the squeegee being configured to reciprocate relative to the screen mask in a squeegee-movement direction being set in advance as a Y-axis direction on a horizontal plane and perpendicular to an X-axis direction being set in advance on the horizontal plane; anda scraping member that comes into sliding contact with the squeegee upon suspension of printing and scraping off applying material adhered to the squeegee,the scraping member is supported in such a manner that the scraping member contacts an entire width of the squeegee along a direction perpendicular to the X-axis direction, andthe scraping member is configured to move along the X-axis direction. 2. The screen printing machine according to claim 1, wherein the scraping member includes a wire portion that comes into sliding contact with the squeegee. 3. The screen printing machine according to claim 1, further comprising a scraping unit which includes the scraping member, wherein the scraping unit includes:a locking member that detachably locks the scraping member to the scraping unit; anda knob that enables locking with the locking member to be manipulated manually. 4. The screen printing machine according to claim 3, wherein the scraping unit further includes oscillating feature that oscillates the scraping member. 5. The screen printing machine according to claim 3, wherein the scraping unit is annexed to an actuating unit which reciprocates in a longitudinal direction of the squeegee for another purpose. 6. The screen printing machine according to claim 1, wherein:the screen mask is disposed so that a worker is allowed to insert and remove it at one end in the squeegee-movement direction; andthe scraping member scrapes off the applying material from the squeegee, at the other end in the squeegee-movement direction at a position where the squeegee retreats. 7. The screen printing machine according to claim 1, further comprising: a receptacle, installed at a location so that the screen mask is allowed to be attached and detached, that catches the applying material scraped off by the scraping member,wherein the scraping member scrapes off the applying material from the squeegee above the receptacle. 8. The screen printing machine according to claim 7, wherein the receptacle is detachably fixed at a location so that the screen mask is allowed to be attached and detached. 9. The screen printing machine according to claim 8, further comprising: a mounting frame on which the receptacle is mounted,wherein:the receptacle is formed of a magnetic body; andthe mounting frame further includes a magnet for locking the receptacle. 10. The screen printing machine according to claim 7, further comprising: a lifting unit that vertically drives the squeegee;a traveling unit which causes the squeegee to reciprocate in the squeegee-movement direction via the lifting unit; andcontrol unit for controlling the lifting unit and the traveling unit so that the squeegee faces above the receptacle during replacement of the screen mask. 11. The screen printing machine according to claim 10, wherein:the screen mask is disposed so that a worker is allowed to insert and remove it at one end in the squeegee-movement direction; andthe scraping member scrapes off the applying material from the squeegee, at the other end in the squeegee-movement direction at a position where the squeegee retreats. 12. The screen printing machine according to claim 10, wherein the control unit controls the lifting unit and the traveling unit so that the squeegee slides outside of a print area on the screen mask after completion of a printing operation and subsequently allows the squeegee to move to above the receptacle. 13. The screen printing machine according to claim 10, wherein the squeegee is a single plate attack angle of which is varied according to the squeegee-movement direction,the screen printing machine further comprises angle varying means for varying the attack angle of the squeegee, andwherein the control unit controls the angle varying means so that the squeegee is inclined at a vertical angle to an angle in a vicinity of the vertical angle during replacement of the screen mask. 14. The screen printing machine according to claim 7, wherein:the squeegee is constituted by an advancing squeegee which slidingly contacts the screen mask during an advancing movement, and a retreating squeegee which slidingly contacts the screen mask during a retreating movement when reciprocating in the squeegee-movement direction; andthe scraping member includes a sliding contact portion which comes into sliding contact with both the advancing squeegee and the retreating squeegee. 15. The screen printing machine according to claim 1, wherein:the squeegee is constituted by an advancing squeegee which slidingly contacts the screen mask during an advancing movement, and a retreating squeegee which slidingly contacts the screen mask during a retreating movement when reciprocating in the squeegee-movement direction; andthe scraping member includes a sliding contact portion which comes into sliding contact with both the advancing squeegee and the retreating squeegee. 16. The screen printing machine according to claim 15, wherein the receptacle is formed of a disposable material. 17. The screen printing machine according to claim 1, wherein the scraping member includes a sheet metal member formed with an opening portion which opens towards the squeegee and a wire portion is provided to close the opening. 18. A screen printing machine that prints applying material on a substrate, comprising: a screen mask detachably mounted to a mask mounting area set in advance;a squeegee arranged above the screen mask mounted to the mask mounting area, the squeegee being configured to reciprocate relative to the screen mask in a first direction being set in advance on a horizontal plane; anda scraping member that comes into sliding contact with the squeegee upon suspension of printing and scraping off applying material adhered to the squeegee,wherein the squeegee having a working surface which extends along a second direction, perpendicular to the first direction, on the horizontal plane, said working surface has a width in a direction perpendicular to the second direction,the scraping member is configured to move along the second direction in a state where the scraping member contacts an entire width of the working surface of the squeegee.
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이 특허에 인용된 특허 (8)
Hoffman ; Jr. Richard C. ; Iaccino Alex ; Kryszczuk Remigiusz, Ink deflector for squeegee on printing machine.
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