JP3144887U - Squeegee polishing equipment - Google Patents

Abstract

A squeegee polishing apparatus is provided which smoothly polishes the tip of a screen printing squeegee while preventing deformation, thereby obtaining a circular arc cross section.
In a squeegee polishing apparatus 10 for polishing a tip portion of a squeegee 11, a belt polishing mechanism 15 including a polishing belt 14 and an abrasive block 16 are brought into contact with an upstream side of a polishing surface of the polishing belt 14 to polish the squeegee. Abrasive powder adhering means 17 for reciprocating the material block 16 over the entire width direction of the polishing belt 14 to grind the abrasive block 16 and adhering the generated abrasive powder to the entire width direction of the polishing belt 14, and a squeegee. The squeegee holding means 18 is mounted on the polishing belt 14 to which abrasive powder is adhered, and the squeegee 11 is rotated with reference to the center of the radius of curvature of the tip having an arcuate cross section. A reciprocating means 19 that reciprocates in the width direction of the polishing belt 14 and a height adjusting means that moves the squeegee holding means 18 up and down relative to the polishing belt 14 are provided.
[Selection] Figure 1

Description

The present invention relates to a squeegee polishing apparatus that polishes (rounds) a tip of a squeegee for screen printing into a circular arc shape in cross section.

In screen printing, a paste is applied on a screen placed above the surface of the substrate to be printed, and the surface of the substrate is moved by moving the tip of the squeegee in contact with the screen. The paste is attached to the. Here, shaping the tip of the squeegee to have a circular arc shape is performed by polishing the tip of the squeegee with a rotating grindstone (see, for example, Patent Document 1).

JP 2002-96250 A

Here, since the squeegee is formed of a material having elasticity such as polyurethane resin (polyurethane rubber), for example, as described in Patent Document 1, the squeegee is polished by directly contacting the tip of the squeegee. However, when shaping is performed, there are problems that fine irregularities are generated in the shaping portion and that the shaping portion is deformed by frictional heat during polishing.

The present invention has been made in view of such circumstances, and can be smoothly polished (smoothly without any irregularities on the surface) to have a circular arc shape while preventing deformation of the tip of a screen printing squeegee. An object of the present invention is to provide a squeegee polishing apparatus.

A squeegee polishing apparatus according to the present invention that meets the above-described object is a squeegee polishing apparatus that polishes a tip portion that moves in contact with a screen of a squeegee for screen printing to have a circular arc shape in cross section.
A belt polishing mechanism including a polishing belt horizontally stretched between a drive roll and a guide roll;
Abrasive powder is generated by bringing an abrasive block into contact with the upstream side of the polishing surface of the abrasive belt, grinding the abrasive block by reciprocating the abrasive block across the entire width of the abrasive belt, Polishing powder adhering means for adhering the entire width of the polishing belt,
Squeegee holding means for placing the tip of the squeegee on the polishing surface of the polishing belt to which the abrasive powder is adhered and rotating the squeegee with reference to the center of the radius of curvature of the tip having an arcuate cross section; ,
Reciprocating means for reciprocating the squeegee holding means in the width direction of the polishing belt;
And a height adjusting means for raising and lowering the squeegee holding means with respect to the polishing surface of the polishing belt via the reciprocating means.

In the squeegee polishing apparatus according to the present invention, the belt polishing mechanism, the abrasive powder adhering means, the squeegee holding means, the reciprocating means, and the height adjusting means are supported by a base, and the base is opened and closed. It is preferable that a cover member including a door and integrally covering the belt polishing mechanism, the polishing powder adhering unit, the squeegee holding unit, the reciprocating unit, and the height adjusting unit is attached.

In the squeegee polishing apparatus according to the present invention, the abrasive block may be a glass block.

In the squeegee polishing apparatus according to the present invention, the tip of the squeegee is brought into contact with the polishing surface of the polishing belt to which the abrasive powder has adhered, so that the tip of the squeegee is polished with the abrasive powder. The tip portion of the squeegee can be shaped smoothly, and the abrasive powder also acts as a lubricant, thereby suppressing the generation of frictional heat and preventing the tip portion of the squeegee from being deformed by heat. Here, since the abrasive powder adhering means reciprocates the abrasive block across the entire width of the polishing belt, it is possible to prevent the abrasive belt from being partially worn and to prevent a decrease in the polishing accuracy of the squeegee. In addition, the life of the polishing belt can be extended. And since the squeegee holding means puts the squeegee on the polishing belt and rotates the squeegee with reference to the center of the radius of curvature of the tip having an arcuate cross section, the shaping to make the tip of the squeegee the arcuate cross section is automatically performed. It can be carried out. Further, since the reciprocating means reciprocates the squeegee holding means in the width direction of the polishing belt, the tip of the squeegee can be polished by effectively using the abrasive powder adhering to the polishing surface of the polishing belt. And efficient shaping. Furthermore, since the height adjusting means adjusts the height position of the squeegee holding means with respect to the polishing surface of the polishing belt, the amount of polishing at the tip of the squeegee can be adjusted, and the shape accuracy of the tip of the squeegee after polishing can be improved. Can do.

In the squeegee polishing apparatus according to the present invention, when the cover member is attached to the base supporting the belt polishing mechanism, the abrasive powder adhering means, the squeegee holding means, the reciprocating means, and the height adjusting means, It is possible to prevent scattering and scattering of squeegee polishing powder. Since the cover member is provided with an open / close door, the abrasive block and the squeegee can be easily attached and detached, and the belt polishing mechanism, the abrasive powder adhering means, the squeegee holding means, the reciprocating means, and the height Adjustment of the adjusting means is also facilitated.

In the squeegee polishing apparatus according to the present invention, when a glass block is used for the abrasive block, the properties of the abrasive powder can be changed by selecting the material of the glass block, and the optimum abrasive powder for the squeegee material can be selected. Can be selected.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
1 is a partially omitted perspective view of a squeegee polishing apparatus according to an embodiment of the present invention, FIG. 2 is a partially omitted front view of the squeegee polishing apparatus, and FIG. 4 is a cross-sectional view taken along the line Q-Q in FIG. 2, and FIGS. 5A and 5B are explanatory views showing a situation when the tip of the squeegee is polished into a circular arc shape with the squeegee polishing apparatus. It is.

As shown in FIG. 1, a squeegee polishing apparatus 10 according to an embodiment of the present invention is an apparatus that polishes a tip portion that moves in contact with a screen of a squeegee 11 for screen printing so as to have a circular arc shape in cross section. A belt polishing mechanism 15 having a polishing belt 14 horizontally stretched between a drive roll 12 and a guide roll 13 and a rectangular parallelepiped glass which is an example of an abrasive block upstream of the polishing surface of the polishing belt 14. The block 16 is brought into contact, and the glass block 16 is reciprocated over the entire width direction of the polishing belt 14 to grind the glass block 16, and the generated glass powder as abrasive powder is spread over the entire width direction of the polishing belt 14. The squeegee 11 has an arcuate cross-section by placing the abrasive powder adhering means 17 to be adhered and the tip of the squeegee 11 on the polishing surface of the polishing belt 14 to which the glass powder has adhered. The squeegee holding means 18 for rotating the squeegee 11 with the center of the radius of curvature of the tip as a reference, the reciprocating means 19 for reciprocating the squeegee holding means 18 in the width direction of the polishing belt 14, and the reciprocating means 19. And a height adjusting means 20 for raising and lowering the squeegee holding means 18 relative to the polishing surface of the polishing belt 14. The belt polishing mechanism 15, the abrasive powder adhering means 17, the squeegee holding means 18, the reciprocating means 19, and the height adjusting means 20 are supported by a base 21. A cover member 22 that integrally covers the powder adhering means 17, the squeegee holding means 18, the reciprocating means 19, and the height adjusting means 20 is provided, and an installation leg portion 22 a is attached to the lower part of the base 21. An opening / closing door 23 that opens upward is provided at the center of the front side. This will be described in detail below.

A belt polishing mechanism (abrasive belt horizontal feed mechanism) 15 includes a drive roll 12 provided on a drive roll support member (not shown) standing on one side of a base 21 so as to be rotatable via an attachment member 24, and a base 21 between the drive roll 12 and the guide roll 13, and a guide roll 13 provided on the other side of the guide roll support member 25 so as to be rotatable at the same height position as the drive roll 12 via an attachment member 26. One of the polishing belt 14 laid horizontally, a backup member 14a that is horizontally supported at both ends by a drive roll support member and a guide roll support member 25 to keep the polishing surface of the polishing belt 14 horizontal, and one of the base 21 And an electric motor 28 that is an example of a rotational power source that is connected to the drive roll 12 via a belt 27 that is an example of a power transmission function.

The abrasive powder adhering means 17 accommodates the upper part of the glass block 16 and presses and holds both sides of the width direction of the glass block 16 so that the longitudinal direction of the glass block 16 is parallel to the traveling direction of the polishing belt 14. A block pressing mechanism 30 that has a block holding member 29 disposed therein and abuts the lower surface of the glass block 16 on the upstream side of the polishing surface of the polishing belt 14 through the block holding member 29 with a constant pressing force, and a block pressing mechanism 30 A reciprocating movement in which the longitudinal direction is held parallel to the traveling direction of the polishing belt 14, and the block holding member 29 (that is, the glass block 16) is reciprocated in the width direction of the polishing belt 14 via the block pressing mechanism 30. And a mechanism 31.

Here, the reciprocating mechanism 31 includes a reciprocating support member 32 attached to the base 21 on the downstream side of the polishing belt 14 on the downstream side of the driving roll support member when viewed from the front, and an upper portion of the reciprocating support member 32. A reciprocating guide member 33 erected on the rear end side with its width direction parallel to the traveling direction of the polishing belt 14, and reciprocating in the width direction of the polishing belt 14 on both sides of the reciprocating guide member 33 in the width direction. Reciprocating rods 34 and 35, each provided with a tip connected to both sides of the block pressing mechanism 30 in the width direction, and a reciprocating source 36 that couples to the bases of the reciprocating rods 34 and 35 to provide reciprocating power. have. The reciprocating source 36 is attached to the power shaft, and an electric motor 37 with a speed reducer standing on the base 21 on the back side (rear side) of the reciprocating support member 32 with a power shaft (not shown) facing upward. A pin member 39 provided eccentrically on the disc 38, and a power transmission plate 41 having a long hole 40 which is disposed in parallel with the disc 38 above the disc 38 and through which the pin member 39 penetrates. The long hole 40 is formed with its longitudinal direction parallel to the traveling direction of the polishing belt 14, and the base of the reciprocating rods 34, 35 is provided at the end of the power transmission plate 41 on the reciprocating guide member 33 side. Is connected.

The block pressing mechanism 30 has a longitudinal direction parallel to the advancing direction of the polishing belt 14, a block member 42 in which the front sides of the reciprocating rods 34, 35 are fixed in a penetrating state on both sides, and a longitudinal direction of the block holding member 29. A pressing shaft that protrudes upward through a spring 44 provided in a stepped hole 43 that is vertically provided at the central portion of the block member 42 and that is formed perpendicular to the central portion of the block member 42 and has a reduced diameter on the upper side. 45, a load-loading member 46 (for example, an annular weight) that is placed on the block member 42 and passes through the center of the front end of the pressing shaft 45, and a block holding member 29 on both sides in the longitudinal direction. Guide shafts 47 and 48 that penetrate the block member 42 are provided.

As shown in FIGS. 1 to 4, the squeegee holding means 18 holds the both sides in the longitudinal direction of the squeegee holding member 49 that holds the squeegee 11 by pressing from both sides in the cross-sectional view. A squeegee gripper 50 that makes the holding member 49 (that is, the squeegee 11) parallel to the traveling direction of the polishing belt 14 and is arranged in a downwardly inclined state with the tip of the squeegee holding member 49 (ie, the squeegee 11) facing downward. 51 and attachment members 52 and 53 that are connected to the bases of the squeegee gripping parts 50 and 51, respectively, and annular members 54 and 55 that form a pair through which the polishing belt 14 that is supported by the backup member 14a passes. A plurality (four in the present embodiment) of annular connecting members that are provided along the circumferential direction of the annular members 54 and 55 and connect the annular members 54 and 55 to each other. And a 6. Here, a hooking portion 93 that abuts the tip of the squeegee holding member 49 is formed at the tip of the squeegee holding portions 50 and 51, and the squeegee holding member 49 held by the squeegee holding portions 50 and 51 It is prevented from moving downward and falling off the squeegee gripping portions 50 and 51.

The squeegee holding means 18 is provided outside the annular members 54, 55 so as to face the annular members 54, 55. The squeegee holding means 18 is in contact with the outer peripheral portions of the annular members 54, 55 at equal intervals. , 55 are rotatably supported around the center thereof (four in this embodiment), and are supported by the backup member 14a concentrically with the annular members 54, 55 at the center. Rotating support members 57 and 58 in which an opening through which the polishing belt 14 passes are formed, and the rotation supporting members 57 and 58 are respectively attached to both ends in the longitudinal direction along the traveling direction of the polishing belt 14 to support the rotation. A holding plate member 59 for supporting the members 57 and 58 from below, and provided on the outside of the rotation support member 57, penetrates the annular member 54 and protrudes to the outside (the guide roll 13 side) of the rotation support member 57. Ring connecting member 5 And a rotating member 61 having a second annular member 94 connected through a.

Further, the squeegee holding means 18 is attached to the holding plate member 59 via a bolt 62 which is an example of a fastening member on the downstream side along the traveling direction of the polishing belt 14 on the rear side of the holding plate member 59 when viewed from the front. An attached holding member 63, and an electric motor 65 with a reduction gear attached to the attached holding member 63 via a bolt 63a which is an example of a fastening member so that the power shaft 64 is parallel to the traveling direction of the polishing belt 14. And a pin member 67 provided eccentrically on a disc 66 attached to the power shaft 64. Here, the rotating member 61 is provided with an arm portion 69 that protrudes outward in the radial direction of the second annular member 94 so as to face the disc 66, and a polishing belt is provided on the front side of the arm portion 69. A long hole 68 extending in a direction orthogonal to the traveling direction of the belt 14 (that is, the width direction of the polishing belt 14) is formed, and the pin member 67 passes through the long hole 68.

The reciprocating means 19 has a rectangular base member 70 provided on the base 21 in a plan view, and both ends of the base member 70 in the direction of travel of the polishing belt 14 in a direction perpendicular to the direction of travel of the polishing belt 14. Rail members 71 and 72 arranged, and sliding members 73 and 74 that are attached to both sides of the lower surface of the holding plate member 59 in the direction orthogonal to the traveling direction of the polishing belt 14 and move on the rail members 71 and 72, Have. Further, the reciprocating means 19 is a second auxiliary holding member attached via a bolt 75 as an example of a fastening member between the sliding members 73 and 74 on the rear end side of the holding plate member 59 when viewed from the front. 76 and a projecting portion 70a provided on the rear end side of the base member 70 as viewed from the front and projecting rearward from a downstream portion along the traveling direction of the polishing belt 14 via a bolt 77 which is an example of a fastening member. Mounted on the mounting base 78, a motor 80 with a reduction gear fixed to the mounting base 78 with the power shaft 79 facing downward, and a pin provided eccentrically on a disc member 81 attached to the power shaft 79 Member 82. A long hole 83 extending in parallel with the traveling direction of the polishing belt 14 is formed at the center of the second attachment holding member 76, and the pin member 82 passes through the long hole 83.

As shown in FIGS. 2 to 4, the height adjusting means 20 includes a positioning mechanism 84 for positioning the base member 70 on the base 21 and a base disposed on the base 21 for fixing via the positioning mechanism 84. An elevating mechanism 85 that elevates and lowers the member 70 is provided. Here, the positioning mechanism 84 includes guide pins 86 erected downward at four corner positions on the lower surface side of the base member 70, and guide pins that are formed on the base 21 and accommodate the front portions of the guide pins 86. It has a hole 87 and a bush 88 erected on the opening edge of the guide pin hole 87 and into which the guide pin 86 is fitted. The elevating mechanism 85 includes a female screw portion 89 formed on the base member 70, a male screw 90 screwed into the female screw portion 89 from above the positioned base member 70, and a base side passing through the base member 70, and the base 21. There is a male screw stopper 91 that is attached to the top of the male screw 90 that passes through the base member 70 and contacts with the male screw 90, and a male screw operation portion 92 that is attached to the base of the male screw 90 and rotates the male screw 90. Yes.

Then, the effect | action of the squeegee grinding | polishing apparatus 10 which concerns on one embodiment of this invention is demonstrated.
As shown in FIGS. 1 and 2, the opening / closing door 23 provided on the cover member 22 is opened, the glass block 16 is fixed to the block holding member 29, and the squeegee 11 is held by the squeegee holding portions 50 and 51 of the squeegee holding means 18. Grips both sides in the longitudinal direction of the squeegee holding member 49. Further, the male screw 90 is rotated by operating the male screw operating portion 92 of the height adjusting means 20 to adjust the height position of the base member 70, and the height position of the squeegee holding means 18 with respect to the polishing surface of the polishing belt 14. Adjust. When the door 23 is closed and the electric motor 28 is driven, the rotational power is transmitted to the drive roll 12 via the belt 27 and the polishing belt 14 circulates between the drive roll 12 and the guide roll 13. At this time, when the electric motor 37 of the abrasive powder adhering means 17 is driven, the disc 38 connected to the power shaft of the electric motor 37 rotates, and the pin member 39 provided on the disc 38 also moves around the center of the disc 38. Rotate.

Here, since the pin member 39 passes through the long hole 40 of the power transmission plate 41, the pin member 39 reciprocates in the long hole 40 along the longitudinal direction of the long hole 40, and The side part is pressed and the power transmission plate 41 is reciprocated in a direction orthogonal to the traveling direction of the polishing belt 14 (width direction of the polishing belt 14). As a result, the reciprocating rods 34 and 35 whose bases are connected to the power transmission plate 41 reciprocate in the direction perpendicular to the traveling direction of the polishing belt 14 and are connected to the front side of the reciprocating rods 34 and 35. 42 also reciprocates in a direction perpendicular to the direction of travel of the polishing belt 14. When the glass block 16 attached to the block holding member 29 reciprocates in the width direction of the polishing belt 14, the long holes are formed so that a part of the glass block 16 protrudes from both ends in the width direction of the polishing belt 14. The shape (width and length) of 40 is adjusted in advance to set the movement width of the reciprocating movement of the block member 42.

As a result, the glass block 16 in contact with the upstream side of the polishing surface of the polishing belt 14 is reciprocated from one end to the other end in the width direction of the polishing belt 14 via the block holding member 29 attached to the block member 42. The glass block 16 can be ground. The glass block 16 reciprocates between both ends in the width direction of the polishing belt 14, so that the generated glass powder can be adhered over the entire width direction of the polishing belt 14, and the polishing belt 14 is partially The wear can be prevented and the life of the polishing belt 14 can be extended. Further, since the block holding member 29 is restricted in movement in directions other than up and down by the guide shafts 47 and 48 and is always urged toward the polishing surface of the polishing belt 14 by the load loading member 46, the polishing is performed. The glass block 16 can be ground continuously and stably by the belt 14. Furthermore, since the block holding member 29 is pressed against the polishing surface of the polishing belt 14 by the load load member 46 via the spring 44, when foreign matter enters between the polishing surface of the polishing belt 14 and the glass block 16, The spring 44 is pushed back so that the glass block 16 is detached from the polishing surface of the polishing belt 14 and the polishing surface of the polishing belt 14 is prevented from being damaged.

As shown in FIGS. 1 and 4, the longitudinal direction of the squeegee holding member 49 held by the squeegee holding portions 50 and 51 of the squeegee holding means 18 is parallel to the traveling direction of the polishing belt 14. The tip of the held squeegee 11 and the polishing surface of the polishing belt 14 are parallel. When the electric motor 65 of the squeegee holding means 18 is driven, the disc 66 connected to the power shaft 64 of the electric motor 65 rotates, and the pin member 67 provided on the disc 66 also rotates around the center of the disc 66. To do. Here, since the pin member 67 passes through the long hole 68 of the arm portion 69 of the rotating member 61, the pin member 67 is long while reciprocating in the long hole 68 along the longitudinal direction of the long hole 68. The side portion of the hole 68 is pressed in the vertical direction.

As a result, as the pin member 67 rotates, the arm portion 69 repeatedly rotates in a plane parallel to the disc 66, and the second annular member 94 connected to the arm portion 69 becomes the second annular member. The annular member 54 that rotates around the center of 94 and is connected to the second annular member 94 is also supported by the outer periphery of the guide bearing 60 and rotates. When the annular member 54 rotates, the annular member 55 connected via the annular connecting member 56 also rotates in synchronization with the annular member 54, and the squeegee held by the squeegee holding means 18. 11 rotates around the center C of the annular members 54 and 55 (the center of the radius of curvature of the tip of the arcuate section). Therefore, as shown in FIG. 5 (A), when the tip of the squeegee 11 is polished by X and shaped into a cross-sectional arc shape with a radius of curvature R, the tip is shown in FIG. 5 (B). Since only the tip of the squeegee 11 shaped into a circular arc in cross section exists at a position descending downward from the center position C of the annular members 54, 55 when only X is polished, the annular members 54, The height position of the squeegee holding means 18 with respect to the polishing surface of the polishing belt 14 is adjusted in advance so that the difference between the center height position of 55 and the height position of the polishing surface of the polishing belt 14 is X + R.

Accordingly, when the polishing of the squeegee 11 is started, the tip of the squeegee 11 protrudes by X as compared with the end of polishing. Therefore, when the polishing of the squeegee 11 is started, the tip of the squeegee 11 is moved to the polishing surface of the polishing belt 14. 5A, as shown in FIG. 5A, the squeegee holding member 49 is moved upward X, and the tip of the squeegee holding member 49 and the latching portion 93 of the squeegee gripping portions 50 and 51 A gap G is formed between them. Then, when polishing is started, the squeegee 11 is lowered by its own weight by the polished length, and when the tip of the squeegee 11 is polished by X as shown in FIG. The squeegee gripping portions 50 and 51 are brought into contact with the latching portions 93 and latched to stop the movement of the squeegee 11, and the polishing automatically stops. As a result, the tip of the squeegee 11 can be automatically shaped into a circular arc shape with a radius of curvature R, and the shape accuracy of the tip of the squeegee 11 after polishing can be improved.

Here, the tip of the squeegee 11 is ground with the glass powder held on the polishing surface of the polishing belt 14, and the tip of the squeegee 11 can be shaped smoothly. Further, when the tip portion of the squeegee 11 is ground with glass powder, the glass powder acts as a lubricant, so that frictional heat generated during grinding of the tip portion of the squeegee 11 is suppressed, and the tip portion of the squeegee 11 is heated. Can prevent deformation.

When the electric motor 80 is driven as shown in FIGS. 1 and 3 while rotating the squeegee 11 on the polishing surface of the polishing belt 14 by the squeegee holding means 18, the disk member 81 connected to the power shaft 79 of the electric motor 80. , And the pin member 82 provided on the disk member 81 also rotates around the center of the disk member 81. Here, since the pin member 82 passes through the elongated hole 83 formed in the second auxiliary holding member 76, the pin member 82 reciprocates in the elongated hole 83 along the longitudinal direction of the elongated hole 83. However, the side portion of the long hole 83 is pressed in a direction orthogonal to the traveling direction of the polishing belt 14. As a result, the second attached holding member 76 reciprocates in a direction orthogonal to the traveling direction of the polishing belt 14, and the holding plate member 59 connected to the second attached holding member 76 moves on the rail members 71, 72. 14 reciprocates in a direction perpendicular to the traveling direction. As a result, the squeegee 11 can be reciprocated over the entire width of the polishing belt 14, and the polishing belt 14 can be prevented from being partially worn away to prevent the polishing accuracy of the squeegee 11 from being lowered. The life of the belt 14 can be extended. Furthermore, it can grind | polish using effectively the glass powder adhering to the grinding | polishing surface of the grinding | polishing belt 14, and can grind | polish efficiently.

The present invention has been described above with reference to the embodiment. However, the present invention is not limited to the configuration described in the above-described embodiment, and is described in the claims of the utility model registration. Other embodiments and modifications conceivable within the scope of the matter are also included.

1 is a partially omitted perspective view of a squeegee polishing apparatus according to an embodiment of the present invention. It is a partially omitted front view of the squeegee polishing apparatus. FIG. 3 is a cross-sectional view taken along the line PP in FIG. 2. It is QQ arrow sectional drawing of FIG. (A), (B) is explanatory drawing which shows the condition at the time of grind | polishing the front-end | tip part of a squeegee in circular cross section by the squeegee grinding | polishing apparatus.

Explanation of symbols

10: squeegee polishing device, 11: squeegee, 12: drive roll, 13: guide roll, 14: polishing belt, 14a: backup member, 15: belt polishing mechanism, 16: glass block, 17: polishing powder adhering means, 18: Squeegee holding means, 19: reciprocating means, 20: height adjusting means, 21: base, 22: cover member, 22a: installation leg, 23: open / close door, 24: mounting member, 25: guide roll support member , 26: mounting member, 27: belt, 28: electric motor, 29: block holding member, 30: block pressing mechanism, 31: reciprocating mechanism, 32: reciprocating support member, 33: reciprocating guide member, 34, 35: Reciprocating rod, 36: Reciprocating source, 37: Electric motor, 38: Disc, 39: Pin member, 40: Long hole, 41: Power transmission plate, 42: Block member, 43: Step Hole: 44: Spring, 45: Pressing shaft, 46: Load bearing member, 47, 48: Guide shaft, 49: Squeegee holding member, 50, 51: Squeegee gripping portion, 52, 53: Mounting portion, 54, 55: Annular member, 56: annular connecting part, 57, 58: rotating support member, 59: holding plate member, 60: guide bearing, 61: rotating member, 62: bolt, 63: attached holding member, 63a: bolt , 64: power shaft, 65: electric motor, 66: disk, 67: pin member, 68: long hole, 69: arm portion, 70: base member, 70a: protrusion, 71, 72: rail member, 73, 74 : Sliding member, 75: bolt, 76: second attached holding member, 77: bolt, 78: mounting base, 79: power shaft, 80: electric motor, 81: disk member, 82: pin member, 83: long Hole, 84: positioning mechanism, 85: lifting mechanism, 6: guide pin, 87: guide pin hole, 88: bush, 89: female screw part, 90: male screw, 91: stopper for male screw, 92: male screw operating part, 93: latching part, 94: second Ring members

Claims (3)

In a squeegee polishing apparatus that polishes the tip of the squeegee for screen printing that moves in contact with the screen to make a circular arc cross section,
A belt polishing mechanism including a polishing belt horizontally stretched between a drive roll and a guide roll;
Abrasive powder is generated by bringing an abrasive block into contact with the upstream side of the polishing surface of the abrasive belt, grinding the abrasive block by reciprocating the abrasive block across the entire width of the abrasive belt, Polishing powder adhering means for adhering the entire width of the polishing belt,
Squeegee holding means for placing the tip of the squeegee on the polishing surface of the polishing belt to which the abrasive powder is adhered and rotating the squeegee with reference to the center of the radius of curvature of the tip having an arcuate cross section; ,
Reciprocating means for reciprocating the squeegee holding means in the width direction of the polishing belt;
A squeegee polishing apparatus comprising: a height adjusting means for moving the squeegee holding means up and down with respect to the polishing surface of the polishing belt via the reciprocating means. The squeegee polishing apparatus according to claim 1, wherein the belt polishing mechanism, the polishing powder adhering means, the squeegee holding means, the reciprocating means, and the height adjusting means are supported by a base, A squeegee polishing apparatus comprising an opening / closing door, and a cover member integrally attached to the belt polishing mechanism, the polishing powder adhering means, the squeegee holding means, the reciprocating movement means, and the height adjusting means. . 3. The squeegee polishing apparatus according to claim 1, wherein the abrasive block is a glass block. 4.

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