JP2007112036A - Ink fountain device and method for manufacturing fountain roller used for ink fountain device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an ink leakage from occurring from both end surfaces of an ink fountain roller of an ink fountain device. <P>SOLUTION: Contact points 15a and 15a constituting a part of paired ink weirs 15 and 15 are in touch with both end surfaces of the ink fountain roller 2. In addition, numerous vortical ground streaks 33 connecting an outer peripheral edge of an end shaft 2a of the ink fountain roller 2 with an outer peripheral edge of the fountain roller 2, are formed on both end surfaces of the ink fountain roller 2. The ground streaks 33 on both end surfaces of the ink fountain roller 2 point to such a vortical direction that the ink contained in an ink fountain diffuses from the center of the ink fountain roller 2 to the outer peripheral part side, following the rotation of the ink fountain roller 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to an ink fountain device used in a printing press, and in particular, an ink fountain device in which a part of a pair of ink fountains forming both side surfaces of an ink fountain is in contact with each of both end surfaces of the ink fountain. The present invention relates to a method for manufacturing a reed roller.

  9 is a plan view showing only both end portions of an inking device in a conventionally widely used rotary printing press, FIG. 10 is a cross-sectional view taken along line XX in FIG. 9, and FIG. 11 is a grinding machine for grinding both end surfaces of a saddle roller. FIG. 12 is a model diagram for explaining a method for grinding the right end surface of the saddle roller, FIG. 13 is a view taken along arrow XIII in FIG. 12 for explaining the state of grinding, and FIG. FIG. 15 is a model diagram for explaining a method of grinding the left end face of the saddle roller, similarly FIG. 15 is a right side view of the saddle roller for explaining the flow of the grinding strip and ink formed on the right end face by grinding. 16 is a left side view of the saddle roller for explaining the flow of the grinding strip and ink formed on the left end surface of the saddle roller by grinding. In FIGS. 12 and 15, for convenience of explanation, the inclination of the reed roller 2 is exaggerated. In FIGS. 14 and 16, for the convenience of explanation, the intervals between the grinding bars are shown larger than the actual ones.

  In FIG. 9, an ink fountain roller 2 rotating in the direction of arrow A in FIG. Behind the ink fountain roller 2, a pivot (not shown) formed substantially the same length as the ink fountain roller 2 and provided below the ink fountain roller 2 shown in FIG. , A blade base 3 is provided which is rotatable in the direction of arrow C in FIG.

  Reference numeral 4 denotes a bracket fixed to the inner side of the base frame 1. A handle 5 and a bolt 6 are screwed into the bracket 4 from opposite sides, and the handle 5 is attached to the U-shaped groove of the blade base 3. By engaging with 7 and tightening, the blade base 3 is fixed at the position shown in the figure. On the other hand, by loosening the handle 5, the blade base 3 can be rotated in the direction of arrow C for cleaning or the like.

  Reference numeral 8 denotes a plurality of divided blades formed in a strip shape, the side surfaces of which are in close contact with the upper surface of the blade base 3 and supported so as to be able to advance and retreat in the perspective direction with respect to the peripheral surface of the ink fountain roller 2. 2 are arranged side by side in the axial direction. At both ends of these divided blades 8, end divided blades indicated by reference numerals 8A and 8B in the figure are fixed on the blade base 3 after positioning by positioning means (not shown).

  Reference numeral 9 denotes a presser plate as a bottom plate formed of a thin steel plate. The presser plate 9 is formed so as to cover the entire surface of the split blade 8 and substantially half of the end split blades 8A and 8B. A square member 10 having the same width is integrally provided at the rear end portion. Reference numeral 11 denotes a corner stay formed substantially the same length as the width of each of the divided blades 8, 8A, 8B. A stopper 12 is fixed to both ends of the corner stay 11 by fixing bolts 13, and the presser The plate 9 is fixed to the blade base 3 by being pressed against both ends of the square bar 10 by the stoppers 12.

  A plurality of magnets 14 are embedded in the respective divided blades 8, 8A, 8B, and are magnetically attracted so that the holding plate 9, the divided blades 8, 8A, 8B and the blade base 3 are in close contact with each other. Yes. A pair of ink fountains 15 and 15 formed in a substantially triangular shape when viewed from the side are fixed on the end split blades 8A and 8B by bolts 16. Are provided with contact portions 15a, 15a that contact the left and right end faces 2A, 2B. Ink 18 is stored in an ink fountain 17 formed by being surrounded by the ink sachets 15 and 15, the presser plate 9, the dividing blades 8, 8 </ b> A and 8 </ b> B, and the peripheral surface of the ink fountain roller 2. In such a configuration, the split blade 8 is advanced and retracted by a drive mechanism (not shown), and the gap t between the peripheral surface of the ink fountain roller 2 and the tip of the split blade 8 is adjusted.

  Next, a method for grinding both end faces of the saddle roller will be described with reference to FIGS. In FIG. 11, reference numeral 20 denotes a spindle stock provided on the table 21, and 22 denotes a tailstock provided on the table 21 so as to face the spindle stock 20. By sandwiching the end surfaces of both end shafts 2 a, 2 a of the scissors roller 2 between the main shaft 20 a of the headstock 20 and the tailstock 22 a of the tailstock 22, the scissors roller 2 is moved between the mainstock 20 and the tailstock 22. Support in a freely rotatable manner.

  Here, the height of the tailstock shaft 22a is set higher by δ than the height of the main shaft 20a. Therefore, in the roller 2, the axis 26 is inclined with respect to the horizontal direction by an angle α so that the right end surface 2A on the side to be ground by the grinding wheel 23 is higher than the left end surface 2B in the drawing as shown in FIG. It is supported in the state. That is, as shown in FIG. 13, the center G2 of the right end surface 2A of the saddle roller 2 is moved in one direction by δ from the center G1 of the grinding wheel 23 formed in a ring shape, that is, moved upward. It is in the state.

  In this state, the lower half (the hatched portion in the figure) of the right end surface 2A of the saddle roller 2 is set to be ground by the end surface 23a of the grinding wheel 23. When the saddle roller 2 is rotated counterclockwise in the figure and the grinding wheel 23 is rotated counterclockwise in the figure, the right end surface 2A of the saddle roller 2 has an outer peripheral edge of the saddle roller 2 as shown in FIG. Grinding strands 28 are formed as a number of spiral strips connecting the outer peripheral edges of the end shaft 2a. As for the spiral direction of the grinding strip 28, if the ink exists at the center of the right end surface 2A as the right end surface 2A of the saddle roller 2 rotates counterclockwise, the direction in which the ink diffuses to the outer peripheral portion is determined. Oriented.

  Next, in order to grind the left end face 2B of the scissors roller 2, the same grinding machine that has ground the right end face 2A described above is used, and in FIG. 11, the end of the left end face 2B is placed on the tail shaft 22a on the tailstock 22 side. The shaft 2a is supported, and the end shaft 2a of the right end surface 2A is supported by the main shaft 20a of the headstock 20. Therefore, in the scissors roller 2, the axis 26 is inclined with respect to the horizontal direction by an angle α so that the left end surface 2B on the side to be ground by the grinding wheel 23 is higher in the drawing than the right end surface 2A as shown in FIG. It is supported in the state.

  In this state, the lower half of the left end surface 2B of the saddle roller 2 is set to be ground by the end surface 23a of the grinding wheel 23 in the same manner as the right end surface 2A is ground. When the saddle roller 2 and the grinding wheel 23 are rotated under the same conditions as those for grinding the right end face 2A described above, the left end face 2B of the saddle roller 2 is formed on the right end face 2A as shown in FIG. The same grinding thread 30 as the grinding thread is formed. That is, the grinding strand 30 is formed in a number of spirals connecting the outer peripheral edge of the saddle roller 2 and the outer peripheral edge of the end shaft 2a, and the spiral direction is temporarily left as the left end surface 2B of the saddle roller 2 rotates in the clockwise direction. If ink is present on the outer peripheral portion of the end face 2A, the ink is directed in the direction in which the ink is collected at the center. That is, an angle E formed by the tangent line C that points to the upstream side in the rotation direction of the saddle roller 2 at the outer peripheral end O point of the left end surface 2B and the direction D of the grinding bar 30 is formed as an obtuse angle.

  As described above, the spiral direction of the grinding ridge 28 formed on the right end surface 2A of the conventional saddle roller 2 described above is, as described above, the rotation of the right end surface 2A as the rotation direction (arrow A direction) of the saddle roller 2 rotates. If ink is present at the center, the ink is directed in the direction of diffusing to the outer periphery. Therefore, the spiral direction of the grinding strip 28 is such that the ink 18 in the ink fountain is in contact with the contact portion 15a from between the contact portion 15a of the ink fountain 15 and the right end surface 2A as the reed roller 2 rotates. It is not oriented in the direction of scraping to no part. For this reason, the ink 18 in the ink fountain does not leak from between the contact portion 15a of the ink sachet 15 and the right end surface 2A as the fountain roller 2 rotates.

  On the other hand, as described above, the spiral direction of the grinding strip 30 formed on the left end surface 2B of the saddle roller 2 is temporarily on the outer peripheral portion of the left end surface 2B as the left end surface 2B of the saddle roller 2 rotates clockwise. If ink is present, it is oriented in the direction that this ink is centered. Accordingly, the spiral direction of the grinding strip 30 is such that the ink 18 in the ink fountain is in contact with the contact portion 15a from between the contact portion 15a of the ink sachet 15 and the left end surface 2B as the roller 2 rotates. It is oriented in the direction of scraping to a part that does not exist. For this reason, there is a problem that the ink 18 in the ink fountain leaks from between the contact portion 15a of the ink sachet 15 and the left end surface 2B by the grinding strip 30 as the heel roller 2 rotates.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide an ink fountain device that prevents ink leakage from both end faces of the fountain roller.

  In order to achieve this object, the invention according to claim 1 includes a reed roller that is rotatably supported, and a pair of ink weirs in which part of the surfaces facing each other are in contact with both end surfaces of the reed roller. In the ink fountain device, a processing strip that is provided between the outer peripheral edge of the end shaft of the fountain roller and the outer rim of the fountain roller is provided on both end surfaces of the fountain roller, and reaches the outer rim of the fountain roller. In both the end faces of the fountain roller, the direction of the processing stripe is directed to the direction in which the ink in the ink fountain diffuses from the center of the fountain roller to the outer peripheral side as the roller rotates.

  The invention according to claim 2 is the invention according to claim 1, wherein the processed stripe is formed in a spiral shape, and the direction of the processed stripe is a spiral direction.

  According to a third aspect of the present invention, there is provided an ink fountain apparatus comprising: a fountain roller supported rotatably; and a pair of ink fountains in which a part of surfaces facing each other is in contact with both end surfaces of the fountain roller. On both end faces of the roller, there is provided a swirling thread which is provided between the outer periphery of the edge shaft of the saddle roller and the outer periphery of the saddle roller. Oriented upstream in the direction.

  According to a fourth aspect of the present invention, there is provided an ink fountain device comprising: a fountain roller that is rotatably supported; and a pair of ink fountains in which a part of surfaces facing each other is in contact with both end surfaces of the fountain roller. On both end surfaces of the roller, there is provided a working strip that is provided between the outer peripheral edge of the end shaft of the saddle roller and the outer peripheral edge of the saddle roller and reaches the outer peripheral edge of the saddle roller. An acute angle is formed between the orientation of the roller in the upstream direction of rotation and the tangent of the outer peripheral edge of the roller in the rotation direction of the roller.

  According to a fifth aspect of the present invention, there is provided a method for manufacturing a reed roller in an ink fountain apparatus in which a reed roller is rotated around an axis and the end surface of the reed roller is ground by an end surface of a rotating grinding wheel. Grinding one end face of the saddle roller with the center of the saddle roller moved in one direction from the center of the grinding wheel, supporting the saddle roller so that both end faces of the saddle roller are reversed, The other end face of the scissors roller is ground in a state where the center of the scissors roller is moved in the other direction of the one opposite direction from the center of the grinding wheel.

  According to a sixth aspect of the present invention, in a method for manufacturing a reed roller in an ink fountain device in which the reed roller is rotated about its axis and the end surface of the reed roller is cut by the reed, the bite is moved from the center side of the reed roller to the outer circumferential direction. A step of cutting one end surface of the reed roller by cutting, and a step of cutting the other end surface of the reed roller by moving the cutting tool from the outer peripheral direction of the reed roller to the center side. A step of supporting the scissors roller so that both end surfaces of the scissors roller are reversed is provided.

  According to the present invention, in the processing stripes formed on both end faces of the fountain roller, the spiral direction of both end faces of the roller is such that the ink in the ink fountain diffuses from the center of the roller to the outer peripheral side as the roller rotates. As a result of the orientation, the spiral direction of these processing stripes is not directed to the direction in which the ink in the ink fountain is scraped from between the ink fountain and both side end faces of the fountain roller as the fountain roller rotates. For this reason, the ink in the ink fountain does not leak from between the ink wetting and each end surface of the fountain roller as the fountain roller rotates.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a schematic configuration of a grinding machine that grinds the left end surface of a reed roller in the ink fountain device according to the present invention, and FIG. 2 shows a method for grinding the left end surface of the reed roller in the ink fountain device according to the present invention. FIG. 3 is a model diagram for explaining, FIG. 3 is a view taken in the direction of arrow II in FIG. 2 for explaining the state of grinding, and FIG. 4 is a diagram for explaining the grinding thread formed on the left end surface by the grinding and the flow of ink. It is a left view of a coffin roller.

  As described in the prior art, the right end surface 2A of the saddle roller 2 can prevent ink leakage by the above-described conventional method, and therefore, only the grinding method of the left end surface 2B will be described here. In the grinding machine used for grinding the left end face 2B, the height of the tailstock shaft 22a is set lower than the height of the main shaft 20a by γ, as shown in FIG. Accordingly, in the saddle roller 2 ground by this grinding machine, as shown in FIG. 2, the saddle roller 2 is such that the left end face 2B on the side to be ground by the grinding wheel 23 is lower than the right end face 2A in the drawing. The axis line 26 is inclined by an angle β with respect to the horizontal direction. That is, as shown in FIG. 3, the center G2 of the left end surface 2B of the saddle roller 2 is moved in the other direction by γ with respect to the center G1 of the grinding wheel 23, that is, moved downward. .

  In this state, the end surface 23a of the grinding wheel 23 is set so that the upper half (the hatched portion in the figure) of the left end surface 2B of the saddle roller 2 is ground. When the saddle roller 2 is rotated counterclockwise in the figure and the grinding wheel 23 is rotated counterclockwise in the figure, the left end surface 2B of the saddle roller 2 has an outer peripheral edge of the saddle roller 2 as shown in FIG. A large number of spiral grinding ridges 33 connecting the outer peripheral edges of the end shaft 2a are formed.

  As for the spiral direction of the grinding bar 33, if the ink exists at the center of the left end face 2B with the clockwise rotation in the figure, which is the rotation direction of the scissors roller 2 (direction of arrow A), It is oriented in the direction of diffusion to the outer periphery. Therefore, the spiral direction of the grinding strip 33 is such that the ink 18 in the ink fountain is brought into contact with the contact portion 15a from between the contact portion 15a of the ink scum 15 and the left end surface 2B as the roller 2 rotates. It is not oriented in the direction of scraping to the part that is not. For this reason, the ink 18 in the ink fountain does not leak from between the contact portion 15a of the ink scum 15 and the left end surface 2B as the fountain roller 2 rotates. That is, an angle F formed by the tangent line C on the upstream side in the rotation direction of the saddle roller 2 at the outer peripheral end O point of the left end surface 2B and the direction D of the grinding bar 30 is formed at an acute angle. Further, if the locus of the grinding bar 33a indicated by a two-dot chain line, which is one of a number of grinding bars 33, is drawn with a compass, the center 33b of the saddle roller 2 is located more than the grinding bar 33a. Located upstream in the rotational direction.

  In the first embodiment, the example in which the right end surface 2A of the saddle roller 2 is ground first has been described, but the left end surface 2B may be ground first. In addition, although one direction in which the center G2 of the scissors roller 2 is moved from the center G1 of the grinding wheel 23 is defined as the upper side of the center G1 of the grinding wheel 23, the lower direction may be defined, and the other direction may be defined as the upper direction.

  FIGS. 5 to 8 show a second embodiment of the present invention, FIG. 5 (A) is a model diagram showing a method of forming the right end surface of the saddle roller by a lathe, and FIG. 5 (B) is a cutting strip. FIG. 6 is a right side view of the reed roller for explaining the flow of ink and the cutting streak formed on the right end surface of the reed roller by grinding. FIG. 7A is a left side view of the reed roller by a lathe. FIG. 8B is a diagram showing the trajectory of the cutting streak, and FIG. 8 is a diagram for explaining the flow of the cutting streak formed on the left end face of the scissors roller and the ink flow. It is a left view of the cocoon roller.

  First, a method for cutting the right end surface of the saddle roller will be described. As shown in FIG. 5 (A), the reed roller 2 is rotated counterclockwise in the figure, and the cutting tool 40 is moved from the end shaft 2a of the right end surface 2A of the reed roller 2 toward the peripheral portion of the reed roller 2 by the arrow Y The right end face 2A is processed so as to move in the direction. By this processing, as shown in FIG. 5B, a cutting thread 41 is formed as a spiral processing thread connecting the outer periphery of the scissors roller 2 and the outer periphery of the end shaft 2a.

  If the cutting edge 41 is rotated in the counterclockwise direction in FIG. 6 which is the rotation direction of the scissors roller 2 (the direction of arrow A), if ink is present at the center of the right end surface 2A, It is oriented in the direction of spreading to the part. Therefore, the spiral direction of the cutting streak 41 causes the ink 18 in the ink fountain to come into contact with the contact portion 15a from between the contact portion 15a of the ink sachet 15 and the right end surface 2A as the roller 2 rotates. It is not oriented in the direction of scraping to the part that is not. For this reason, the ink 18 in the ink fountain does not leak from between the contact portion 15a of the ink sachet 15 and the right end surface 2A as the fountain roller 2 rotates.

  Next, a method for cutting the left end surface of the saddle roller will be described. As shown in FIG. 7 (A), the reed roller 2 is rotated counterclockwise in the drawing, and the cutting tool 40 is moved from the peripheral portion of the reed roller 2 toward the end shaft 2a of the left end surface 2B of the reed roller 2 in the direction of arrow Z. The left end face 2A is processed so as to be moved to the position. By this processing, as shown in FIG. 4B, a spiral cutting ridge 42 connecting the outer peripheral edge of the scissors roller 2 and the outer peripheral edge of the end shaft 2a is formed.

  If this cutting streak 42 is rotated in the clockwise direction in FIG. 8, which is the rotation direction of the scissors roller 2 (the direction of arrow A), if ink is present at the center of the left end surface 2B, the ink Oriented to spread in the direction. Accordingly, the spiral direction of the cutting streak 42 causes the ink 18 in the ink fountain to come into contact with the contact portion 15a from between the contact portion 15a of the ink sachet 15 and the left end surface 2B as the reed roller 2 rotates. It is not oriented in the direction of scraping to the part that is not. For this reason, the ink 18 in the ink fountain does not leak from between the contact portion 15a of the ink scum 15 and the left end surface 2B as the fountain roller 2 rotates.

  In the second embodiment, as the order of cutting both side end faces of the reed roller 2 with the cutting tool 40, the step of cutting from the end shaft 2a toward the outer peripheral edge of the reed roller 2 was performed first. You may make it perform the process cut | disconnected from the outer periphery of the scissors roller 2 toward the end shaft 2a previously.

  In the present embodiment, the processing stripes 33, 41, 42 are formed in a spiral shape, but may be formed in a linear shape. Further, although the example in which the processing stripes 33, 41, and 42 reach the outer peripheral edge of the end shaft 2a of the reed roller 2 has been described, it is not always necessary to reach the outer peripheral edge of the end shaft 2a. It only has to be done.

It is a front view which shows the schematic structure of the grinding machine for grinding the left end surface of the reed roller in the ink fountain device which concerns on this invention. It is a model figure for demonstrating the method of grinding the left end surface of the reed roller in the ink fountain apparatus which concerns on this invention. FIG. 2 is a view taken along arrow II in FIG. 1 for explaining a state in which the left end surface of the fountain roller is ground in the ink fountain device according to the present invention. In the ink fountain device according to the present invention, it is a left side view of the fountain roller for explaining the flow of the grinding strip and ink formed on the left end surface of the fountain roller by grinding. The 2nd Embodiment of this invention is shown, The figure (A) is a model figure which shows the method of forming the left side end surface of a saddle roller with a lathe, The figure (B) is a figure which shows the locus | trajectory of a cutting line. . In the 2nd Embodiment of this invention, it is a left view of the scissors roller for demonstrating the flow of the cutting streak and ink formed in the left end surface of the scissors roller by cutting. The 2nd Embodiment of this invention is shown, The figure (A) is a model figure which shows the method of forming the right side end surface of a saddle roller with a lathe, The figure (B) is a figure which shows the locus | trajectory of a cutting line. . In the 2nd Embodiment of this invention, it is a left view of the scissors roller for demonstrating the flow of the cutting streak and ink formed in the right end surface of the scissors roller by cutting. It is a top view which shows only the both ends of the ink apparatus in the rotary printing machine widely used conventionally. FIG. 10 is a sectional view taken along line XX in FIG. 9. It is a front view which shows schematic structure of the grinding machine which grinds the both end surfaces of a scissors roller. It is a model figure for demonstrating the method of grinding the right end surface of a scissors roller. It is a XIII arrow directional view in Drawing 12 for explaining the state of grinding. FIG. 6 is a right side view of the saddle roller for explaining the flow of the grinding strip and ink formed on the right end surface of the saddle roller by grinding. It is a model figure for demonstrating the conventional method of grinding the left end surface of a scissors roller. It is a left side view of a scissors roller for explaining the flow of grinding ridges and ink formed on the left end surface of the scissors roller ground by a conventional method.

Explanation of symbols

  2 ... 壷 roller, 2A ... right end surface, 2B ... left end surface, 2a ... end shaft, 15 ... ink weigh, 15a ... contact part, 17 ... ink fountain, 18 ... ink, 23 ... grinding wheel, 23a ... end surface, 25 28, 33 ... Grinding strip (processing strip), 40 ... Bite, 41, 42 ... Cutting strip (processing strip).

Claims (6)

In an ink fountain apparatus comprising a fountain roller that is rotatably supported, and a pair of ink cuffs, part of the surfaces facing each other being in contact with both end faces of the fountain roller,
Provided on both end faces of the saddle roller is a working strip that is provided between the outer peripheral edge of the end shaft of the saddle roller and the outer peripheral edge of the saddle roller, and reaches the outer peripheral edge of the saddle roller. An ink fountain apparatus characterized in that the direction of the processing stripes on both sides is directed in the direction in which the ink in the ink fountain diffuses from the center of the fountain roller toward the outer peripheral side as the roller rotates. Ink fountain device according to claim 1,
An ink fountain apparatus according to claim 1, wherein the processed stripe is formed in a spiral shape, and the direction of the processed stripe is a spiral direction. In an ink fountain apparatus comprising a fountain roller that is rotatably supported, and a pair of ink cuffs, part of the surfaces facing each other being in contact with both end faces of the fountain roller,
On both end faces of the saddle roller, there is provided a spiral processing strip that is provided between the outer peripheral edge of the end shaft of the saddle roller and the outer peripheral edge of the saddle roller. An ink fountain apparatus characterized by being directed toward the upstream side in the rotation direction. In an ink fountain apparatus comprising a fountain roller that is rotatably supported, and a pair of ink cuffs, part of the surfaces facing each other being in contact with both end faces of the fountain roller,
On both end surfaces of the saddle roller, there is provided a working strip provided between the outer peripheral edge of the end shaft of the saddle roller and the outer peripheral edge of the saddle roller, and the outer peripheral edge of the saddle roller of this working strip. An ink fountain apparatus characterized in that an angle formed between an orientation directed to the upstream side in the rotation direction of the reed roller and a tangent line directed to the upstream side of the revolving direction of the reed roller in the outer peripheral edge of the reed roller is formed at an acute angle . In the manufacturing method of the heel roller in the ink fountain apparatus, which rotates the heel roller around the axis and performs surface grinding with the end face of the grinding wheel rotating the end face of the heel roller,
Grinding one end surface of the 壷 roller with one end of the 壷 roller moved in one direction from the center of the grinding wheel, so that both end surfaces of the 壷 roller are reversed And the other end face of the scissors roller is ground in a state where the center of the scissors roller is moved in the other direction of the one opposite direction from the center of the grindstone. A method for producing a fountain roller in an ink fountain apparatus. In the method of manufacturing a cocoon roller in an ink fountain device that rotates the cocoon roller around an axis and cuts the end surface of the cocoon roller with a cutting tool
A process of cutting one end face of the reed roller by moving the cutting tool from the center side of the reed roller, and a process of cutting the other end face of the reed roller by moving the tool from the outer peripheral direction of the reed roller to the center side And a step of supporting the reed roller so that both end surfaces of the reed roller are reversed between the two steps. A method for producing a reed roller in an ink fountain apparatus, comprising:

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